CN113890962B - Image sensor, 3D camera and control method of image sensor - Google Patents

Image sensor, 3D camera and control method of image sensor Download PDF

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Publication number
CN113890962B
CN113890962B CN202010627901.9A CN202010627901A CN113890962B CN 113890962 B CN113890962 B CN 113890962B CN 202010627901 A CN202010627901 A CN 202010627901A CN 113890962 B CN113890962 B CN 113890962B
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photosensitive
electrical connection
connection end
unit
connection terminal
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CN113890962A (en
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蒋珂玮
俞锋
唐玮
张宏海
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2021/103918 priority patent/WO2022002174A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144—Devices controlled by radiation
    • H01L27/146—Imager structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Studio Devices (AREA)

Abstract

The application provides an image sensor (440), a 3D camera, an electronic device, and a control method of the image sensor (440). The image sensor (440) includes: a plurality of photosensitive units (510) arranged in an array; a photo-sensitive driver (910) for: the first type photosensitive unit (511) is driven, the second type photosensitive unit (512) is closed, and the first type photosensitive unit (511) and the second type photosensitive unit (512) meet the following conditions: at least one second type photosensitive unit (512) is arranged between any two adjacent first type photosensitive units (511) on any line/column/oblique line. This is advantageous for reducing crosstalk of optical signals between the plurality of light sensing units (510).

Description

Image sensor, 3D camera and control method of image sensor
Technical Field
The present application relates to the field of electronic devices, and more particularly, to an image sensor, a 3D camera, and a control method of the image sensor.
Background
To capture a 3D image, information of a three-dimensional contour of a subject can be obtained by measuring a direct time of flight (DToF) of light from the subject to a three-dimensional (3D) camera. A 3D camera acquiring a 3D image through dtod may also be referred to as a dtod camera.
Users often desire to obtain higher resolution 3D images. One possible way is to reduce the pixel size to obtain a high resolution image. Shrinking the pixel size may result in a decreased spacing between the photosensors in the dtod camera, increasing optical signal crosstalk between the photosensors. Therefore, it is relatively difficult to increase the resolution of the 3D image captured by the dtod camera.
Disclosure of Invention
The application provides an image sensor, a 3D camera and a control method of the image sensor, and aims to reduce optical signal crosstalk between photosensitive units.
In a first aspect, an image sensor is provided, including: the photosensitive units are arranged in an array form; a photosensitive driver to: determining a plurality of first type photosensitive units and/or a plurality of second type photosensitive units from the plurality of photosensitive units; the control the load voltage of first type photosensitive unit is first voltage, controls the load voltage of second type photosensitive unit is the second voltage, first voltage is higher than the operating voltage of photosensitive unit, the second voltage is lower than the operating voltage of photosensitive unit, first type photosensitive unit and second type photosensitive unit satisfy following arbitrary any one: at least one second-type photosensitive unit is arranged between any two adjacent first-type photosensitive units in any row at intervals, at least one second-type photosensitive unit is arranged between any two adjacent first-type photosensitive units in any column at intervals, and at least one second-type photosensitive unit is arranged between any two adjacent first-type photosensitive units in any diagonal line at intervals.
"above" may mean greater than or equal to. Below may mean "less than".
Alternatively, the image sensor may be an image sensor within the 3D lens.
Alternatively, an image sensor may refer to a receiver for detecting (or capturing, receiving) light.
In the present application, it is advantageous to reduce crosstalk of optical signals between the light sensing units by reducing optical signals from adjacent light sensing units. On the basis of the above, the distance between the adjacent photosensitive units can be reduced under the condition that the degree of crosstalk of the optical signals is basically unchanged, which is beneficial to obtaining high-resolution images.
With reference to the first aspect, in certain implementations of the first aspect, the light sensing unit includes a first input terminal, a second input terminal; the photosensitive driver comprises a first driving connecting end, a second driving connecting end and a third driving connecting end, the voltage difference between the first driving connecting end and the second driving connecting end is the first voltage, and the voltage difference between the first driving connecting end and the third driving connecting end is the second voltage; the image sensor further comprises a first electric connection end conversion device, wherein the first electric connection end conversion device comprises a first electric connection end, a second electric connection end and a third electric connection end, and the first electric connection end conversion device is used for switching between conduction of the first electric connection end and the second electric connection end and conduction of the first electric connection end and the third electric connection end; the photosensitive unit is electrically connected with a first driving connecting end of the photosensitive driver through the first input end, the photosensitive unit is electrically connected with a first electric connecting end of the first electric connecting end conversion device through the second input end, the first electric connecting end conversion device is electrically connected with a second driving connecting end of the photosensitive driver through the second electric connecting end, and the first electric connecting end conversion device is electrically connected with a third driving connecting end of the photosensitive driver through the third electric connecting end; the controlling the load voltage of the first type of photosensitive unit to be a first voltage and the controlling the load voltage of the second type of photosensitive unit to be a second voltage includes: the first electric connection end conversion device is controlled to switch the electric connection end conducted with the first electric connection end, so that under the condition that the photosensitive unit belongs to the first type of photosensitive unit, the first electric connection end is conducted with the second electric connection end, the first electric connection end is disconnected with the third electric connection end, under the condition that the photosensitive unit belongs to the second type of photosensitive unit, the first electric connection end is conducted with the third electric connection end, and the first electric connection end is disconnected with the second electric connection end.
Optionally, the first electrical connection end conversion device is configured to switch between conduction of the first electrical connection end and the second electrical connection end and conduction of the first electrical connection end and the third electrical connection end, which means that when one of the second electrical connection end and the third electrical connection end is conducted with the first electrical connection end, the other electrical connection end is disconnected from the first electrical connection end.
The voltage value of the first driving connection terminal may be V0, the voltage value of the second driving connection terminal may be V1, and the voltage value of the third driving connection terminal may be V2. Thus, the first voltage may be | V0-V1| and the second voltage may be | V0-V2|. The operating voltage of the light sensing unit may be V3. V0-V1| > V3> | V0-V2|.
In the application, the photosensitive unit is electrically connected with the corresponding electric connection terminal conversion device, and the electric connection terminal conversion device can switch the electric connection path, so that the load voltage of the photosensitive unit can be changed or adjusted. Optionally, each photosensitive cell may correspond to a unique electrical connection terminal conversion device, so that the adjustment of the load voltage of the photosensitive cell may be relatively flexible.
With reference to the first aspect, in certain implementations of the first aspect, the plurality of light sensing units includes a plurality of first light sensing units and a plurality of second light sensing units, and the first light sensing units include a third input end and a fourth input end; the second photosensitive unit comprises a fifth input end and a sixth input end; the photosensitive driver comprises a fourth driving connection end and a fifth driving connection end, and the voltage difference between the fourth driving connection end and the fifth driving connection end is the first voltage; the image sensor further comprises a second electric connection end conversion device, the second electric connection end conversion device comprises a fourth electric connection end, a fifth electric connection end and a sixth electric connection end, and the second electric connection end conversion device is used for switching between conduction of the fourth electric connection end and the sixth electric connection end and conduction of the fifth electric connection end and the sixth electric connection end; the first photosensitive unit is electrically connected with a fourth driving connecting end of the photosensitive driver through the third input end, and the first photosensitive unit is electrically connected with a fourth electric connecting end of the second electric connecting end conversion device through the fourth input end; the second photosensitive unit is electrically connected with a fourth driving connecting end of the photosensitive driver through the fifth input end, and the second photosensitive unit is electrically connected with a fifth electric connecting end of the second electric connecting end conversion device through the sixth input end; the second electric connection end conversion device is electrically connected with the fifth driving connection end of the photosensitive driver through the sixth electric connection end, the load voltage of the first type of photosensitive unit is controlled to be the first voltage, and the load voltage of the second type of photosensitive unit is controlled to be the second voltage, and the method comprises the following steps: and controlling the second electric connection end conversion device to switch the electric connection end conducted with the sixth electric connection end, so that the fourth electric connection end is conducted with the sixth electric connection end, and the fifth electric connection end is disconnected with the sixth electric connection end, or the fifth electric connection end is conducted with the sixth electric connection end, and the fourth electric connection end is disconnected with the sixth electric connection end.
Optionally, the second electrical connection end conversion device is configured to switch between conduction of the fourth electrical connection end and the sixth electrical connection end and conduction of the fifth electrical connection end and the sixth electrical connection end, which means that when one of the fourth electrical connection end and the fifth electrical connection end is conducted with the sixth electrical connection end, the other electrical connection end is disconnected from the sixth electrical connection end.
The voltage value of the fourth driving connection terminal may be V0, and the voltage value of the fifth driving connection terminal may be V1. The operating voltage of the light sensing unit may be V3. Thus, the first voltage may be | V0-V1|, and the second voltage may be considered to be 0. And the | V0-V1| is more than or equal to V3.
In the present application, different types of the photosensitive cells may be electrically connected to different electrical connection terminals of the electrical connection terminal conversion device, and the electrical connection terminal conversion device may switch an electrical connection path, so that a load voltage of the photosensitive cells may be changed or adjusted. Optionally, a plurality of light sensing units may be electrically connected to the same electrical connection terminal conversion device, so that the load voltage of the light sensing unit may be adjusted by a relatively small number of electrical connection terminal conversion devices.
With reference to the first aspect, in certain implementations of the first aspect, the photosensitive driver is further configured to, before determining a plurality of first type photosensitive cells and/or a plurality of second type photosensitive cells from the plurality of photosensitive cells, determine photosensitive cells within a first photosensitive region and/or photosensitive cells within a second photosensitive region, where the first photosensitive region and the second photosensitive region are two unconnected photosensitive regions of the image sensor, and the plurality of photosensitive cells are located in the first photosensitive region; the photosensitive driver is also used for controlling the photosensitive unit in the first photosensitive area to be electrically connected with the photosensitive driver and cutting off the electric connection between the photosensitive unit in the second photosensitive area and the photosensitive driver.
In the application, under the condition that the power supply capacity of the battery is not changed, all the photosensitive units are driven in a plurality of batches, and the number of the photosensitive units in the image sensor is increased.
With reference to the first aspect, in certain implementations of the first aspect, the image sensor further includes: a third electrical connection end conversion device, where the third electrical connection end conversion device includes a seventh electrical connection end, an eighth electrical connection end, and a ninth electrical connection end, the third electrical connection end conversion device is used to switch between the eighth electrical connection end being conducted with the seventh electrical connection end and the ninth electrical connection end being conducted with the seventh electrical connection end, the third electrical connection end conversion device is electrically connected with the photosensitive driver through the seventh electrical connection end, the third electrical connection end conversion device is electrically connected with the photosensitive unit in the first photosensitive region through the eighth electrical connection end, and the third electrical connection end conversion device is electrically connected with the photosensitive unit in the second photosensitive region through the ninth electrical connection end; control photosensitive unit in the first sensitization region with the sensitization driver electricity is connected, cuts off photosensitive unit in the second sensitization region with electricity between the sensitization driver is connected, includes: and controlling the third electric connection end conversion device to switch the electric connection end conducted with the seventh electric connection end, so that the seventh electric connection end is conducted with the eighth electric connection end, and the seventh electric connection end is disconnected with the ninth electric connection end.
Optionally, the third electrical connection end conversion device is configured to switch between conduction of the eighth electrical connection end and the seventh electrical connection end and conduction of the ninth electrical connection end and the seventh electrical connection end, which means that when one of the eighth electrical connection end and the ninth electrical connection end is conducted with the seventh electrical connection end, the other electrical connection end is disconnected from the seventh electrical connection end.
In this application, different sensitization regions can correspond the different electric connection ends of electric connection end conversion device to electric connection end conversion device can switch the electric connection route, thereby can drive or close the sensitization unit in the sensitization region in a flexible way. Optionally, the plurality of photosensitive regions may be electrically connected to the same electrical connection terminal conversion device, so that the regional driving of all the photosensitive units may be realized through a relatively small number of electrical connection terminal conversion devices.
With reference to the first aspect, in certain implementations of the first aspect, the electrical connection terminal conversion device is a metal oxide semiconductor field effect (MOS) transistor.
In a second aspect, a 3D camera is provided, comprising: a lens comprising the image sensor according to any one of the possible implementations of the first aspect; the light emitting component emits light which is reflected by a shot object and then enters the image sensor, and the flight time of the light from the light emitting component to the image sensor is used for generating a 3D image of the shot object.
The 3D camera may be a DToF camera.
The 3D camera can be used for operations such as face recognition, gesture recognition, three-dimensional modeling and the like.
Alternatively, the light emitting member may be an emitter for emitting light.
In the present application, since the degree of crosstalk of optical signals is reduced, so that the interval between adjacent photosensitive cells can be reduced, it is advantageous to improve the photographing resolution of a 3D image.
With reference to the second aspect, in certain implementations of the second aspect, the photosensitive driver is further configured to, before determining a plurality of first type photosensitive cells and/or a plurality of second type photosensitive cells from the plurality of photosensitive cells, determine photosensitive cells within a first photosensitive region and/or photosensitive cells within a second photosensitive region, where the first photosensitive region and the second photosensitive region are two unconnected photosensitive regions of the image sensor, and the plurality of photosensitive cells are located in the first photosensitive region; the photosensitive driver is also used for controlling the photosensitive unit in the first photosensitive area to be electrically connected with the photosensitive driver and cutting off the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver; the light emitting part includes: a plurality of light emitting units; a light emitting driver for determining a light emitting unit in a first light emitting region and/or a light emitting unit in a second light emitting region from among the plurality of light emitting units, the first light emitting region corresponding to the first light sensing region, the second light emitting region corresponding to the second light sensing region; the light-emitting driver is further configured to, when the photosensitive unit in the first photosensitive region is electrically connected to the photosensitive driver and the photosensitive unit in the second photosensitive region is disconnected from the photosensitive driver, control the light-emitting unit in the first light-emitting region to be electrically connected to the light-emitting driver, and disconnect the electrical connection between the light-emitting unit in the second light-emitting region and the light-emitting driver.
In the application, under the condition that the power supply capacity of the battery is not changed, all the light-emitting units are driven in a plurality of batches, so that the electric quantity consumed by driving the light-emitting components is reduced.
With reference to the second aspect, in certain implementations of the second aspect, the light emitting part further includes: a fourth electrical connection end conversion device, which includes a tenth electrical connection end, an eleventh electrical connection end, and a twelfth electrical connection end, and is used for switching between conduction of the eleventh electrical connection end and the tenth electrical connection end and conduction of the twelfth electrical connection end and the tenth electrical connection end, and is electrically connected to the light-emitting driver through the tenth electrical connection end, and is electrically connected to the light-emitting unit in the first light-emitting region through the eleventh electrical connection end, and is electrically connected to the light-emitting unit in the second light-emitting region through the twelfth electrical connection end; the controlling the light emitting units in the first light emitting area to be electrically connected with the light emitting driver and the cutting off the electrical connection between the light emitting units in the second light emitting area and the light emitting driver includes: and controlling the fourth electric connection end conversion device to switch the electric connection end conducted with the tenth electric connection end, so that the tenth electric connection end is conducted with the eleventh electric connection end, and the tenth electric connection end is disconnected with the twelfth electric connection end.
Optionally, the fourth electrical connection end conversion device is configured to switch between conduction of the eleventh electrical connection end and the tenth electrical connection end and conduction of the twelfth electrical connection end and the tenth electrical connection end, and may indicate that, when one of the eleventh electrical connection end and the twelfth electrical connection end is conducted with the tenth electrical connection end, the other electrical connection end is disconnected from the tenth electrical connection end.
In the application, different light-emitting areas can correspond to different electrical connection ends of the electrical connection end conversion device, and the electrical connection end conversion device can switch the electrical connection path, so that the light-emitting units in the light-emitting areas can be flexibly driven or closed. Optionally, the plurality of light-emitting areas may be electrically connected to the same electrical connection terminal conversion device, so that the sub-area driving of all the light-emitting units may be realized by using a relatively small number of electrical connection terminal conversion devices.
In a third aspect, an electronic device is provided, which includes the image sensor described in any one of the possible implementation manners of the first aspect.
In a fourth aspect, an electronic device is provided, which includes the 3D camera according to any one of the possible implementation manners of the second aspect; and the processor is used for controlling the 3D camera to shoot the 3D image.
In a fifth aspect, there is provided a method of controlling an image sensor including a plurality of photosensitive cells arranged in an array, the method comprising: determining a plurality of first type photosensitive units and/or a plurality of second type photosensitive units from the plurality of photosensitive units; the control the load voltage of first type photosensitive unit is first voltage, controls the load voltage of second type photosensitive unit is the second voltage, first voltage is higher than the operating voltage of photosensitive unit, the second voltage is lower than the operating voltage of photosensitive unit, first type photosensitive unit and second type photosensitive unit satisfy following arbitrary any one: at least one second-type photosensitive unit is arranged between any two adjacent first-type photosensitive units in any row at intervals, at least one second-type photosensitive unit is arranged between any two adjacent first-type photosensitive units in any column at intervals, and at least one second-type photosensitive unit is arranged between any two adjacent first-type photosensitive units in any diagonal line at intervals.
With reference to the fifth aspect, in certain implementations of the fifth aspect, the light sensing unit includes a first input terminal, a second input terminal; the photosensitive driver comprises a first driving connecting end, a second driving connecting end and a third driving connecting end, the voltage difference between the first driving connecting end and the second driving connecting end is the first voltage, and the voltage difference between the first driving connecting end and the third driving connecting end is the second voltage; the image sensor further comprises a first electric connection end conversion device, wherein the first electric connection end conversion device comprises a first electric connection end, a second electric connection end and a third electric connection end, and the first electric connection end conversion device is used for switching between conduction of the first electric connection end and the second electric connection end and conduction of the first electric connection end and the third electric connection end; the photosensitive unit is electrically connected with a first driving connecting end of the photosensitive driver through the first input end, the photosensitive unit is electrically connected with a first electric connecting end of the first electric connecting end conversion device through the second input end, the first electric connecting end conversion device is electrically connected with a second driving connecting end of the photosensitive driver through the second electric connecting end, and the first electric connecting end conversion device is electrically connected with a third driving connecting end of the photosensitive driver through the third electric connecting end; the controlling the load voltage of the first type of photosensitive unit to be a first voltage and the controlling the load voltage of the second type of photosensitive unit to be a second voltage includes: the first electric connection end conversion device is controlled to switch the electric connection end conducted with the first electric connection end, so that under the condition that the photosensitive unit belongs to the first type of photosensitive unit, the first electric connection end is conducted with the second electric connection end, the first electric connection end is disconnected with the third electric connection end, under the condition that the photosensitive unit belongs to the second type of photosensitive unit, the first electric connection end is conducted with the third electric connection end, and the first electric connection end is disconnected with the second electric connection end.
With reference to the fifth aspect, in certain implementations of the fifth aspect, the plurality of photosensitive units includes a plurality of first photosensitive units and a plurality of second photosensitive units, and the first photosensitive units include a third input end and a fourth input end; the second photosensitive unit comprises a fifth input end and a sixth input end; the photosensitive driver comprises a fourth driving connecting end and a fifth driving connecting end, and the voltage difference between the fourth driving connecting end and the fifth driving connecting end is the first voltage; the image sensor further comprises a second electric connection end conversion device, the second electric connection end conversion device comprises a fourth electric connection end, a fifth electric connection end and a sixth electric connection end, and the second electric connection end conversion device is used for switching between conduction of the fourth electric connection end and the sixth electric connection end and conduction of the fifth electric connection end and the sixth electric connection end; the first photosensitive unit is electrically connected with a fourth driving connecting end of the photosensitive driver through the third input end, and the first photosensitive unit is electrically connected with a fourth electric connecting end of the second electric connecting end conversion device through the fourth input end; the second photosensitive unit is electrically connected with a fourth driving connecting end of the photosensitive driver through the fifth input end, and the second photosensitive unit is electrically connected with a fifth electric connecting end of the second electric connecting end conversion device through the sixth input end; the second electric connection end conversion device is electrically connected with the fifth driving connection end of the photosensitive driver through the sixth electric connection end, the load voltage of the first type of photosensitive unit is controlled to be the first voltage, and the load voltage of the second type of photosensitive unit is controlled to be the second voltage, and the method comprises the following steps: and controlling the second electric connection end conversion device to switch the electric connection end conducted with the sixth electric connection end, so that the fourth electric connection end is conducted with the sixth electric connection end, and the fifth electric connection end is disconnected with the sixth electric connection end, or the fifth electric connection end is conducted with the sixth electric connection end, and the fourth electric connection end is disconnected with the sixth electric connection end.
With reference to the fifth aspect, in certain implementations of the fifth aspect, before the determining a plurality of the first type of photosensitive units and/or a plurality of the second type of photosensitive units from the plurality of photosensitive units, the method further comprises: determining a photosensitive unit in a first photosensitive area and/or a photosensitive unit in a second photosensitive area, wherein the first photosensitive area and the second photosensitive area are two unconnected photosensitive areas of the image sensor, and the plurality of photosensitive units are all located in the first photosensitive area; and controlling the photosensitive unit in the first photosensitive area to be electrically connected with the photosensitive driver, and cutting off the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver.
With reference to the fifth aspect, in certain implementations of the fifth aspect, the image sensor further includes: a third electrical connection end conversion device, where the third electrical connection end conversion device includes a seventh electrical connection end, an eighth electrical connection end, and a ninth electrical connection end, the third electrical connection end conversion device is used to switch between conduction of the eighth electrical connection end and the seventh electrical connection end, and conduction of the ninth electrical connection end and the seventh electrical connection end, and the third electrical connection end conversion device is electrically connected to the photosensitive driver through the seventh electrical connection end, and the third electrical connection end conversion device is electrically connected to the photosensitive unit in the first photosensitive region through the eighth electrical connection end, and the third electrical connection end conversion device is electrically connected to the photosensitive unit in the second photosensitive region through the ninth electrical connection end; control photosensitive unit in the first sensitization region with the sensitization driver electricity is connected, cuts off photosensitive unit in the second sensitization region with electricity between the sensitization driver is connected, includes: and controlling the third electric connection end conversion device to switch the electric connection end conducted with the seventh electric connection end, so that the seventh electric connection end is conducted with the eighth electric connection end, and the seventh electric connection end is disconnected with the ninth electric connection end.
With reference to the fifth aspect, in certain implementations of the fifth aspect, the method is applied to a 3D camera, where the 3D camera includes a light emitting component, where the light emitting component includes a plurality of light emitting units, and before the controlling the photosensitive units in the first photosensitive region to be electrically connected to the photosensitive driver and the controlling the photosensitive units in the second photosensitive region to be electrically connected to the photosensitive driver are cut off, the method further includes: determining a light emitting unit in a first light emitting area and/or a light emitting unit in a second light emitting area from the plurality of light emitting units, the first light emitting area corresponding to the first photosensitive area, the second light emitting area corresponding to the second photosensitive area; control photosensitive unit in the first sensitization region with the sensitization driver electricity is connected, cuts off photosensitive unit in the second sensitization region with electricity between the sensitization driver is connected, includes: and cooperatively controlling the light-emitting unit in the first light-emitting area to be electrically connected with the light-emitting driver, and the photosensitive unit in the first photosensitive area to be electrically connected with the photosensitive driver, and cooperatively cutting off the electrical connection between the light-emitting unit in the second light-emitting area and the light-emitting driver and the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver.
With reference to the fifth aspect, in certain implementations of the fifth aspect, the light emitting part further includes: a fourth electrical connection end conversion device, including a tenth electrical connection end, an eleventh electrical connection end, and a twelfth electrical connection end, where in the case where one of the twelfth electrical connection ends is connected to the tenth electrical connection end, the other electrical connection end is disconnected from the tenth electrical connection end, the fourth electrical connection end conversion device is electrically connected to the light-emitting driver through the tenth electrical connection end, the fourth electrical connection end converter is electrically connected to the light-emitting unit in the first light-emitting region through the eleventh electrical connection end, and the fourth electrical connection end converter is electrically connected to the light-emitting unit in the second light-emitting region through the twelfth electrical connection end; the controlling the light emitting units in the first light emitting area to be electrically connected with the light emitting driver and the cutting off the electrical connection between the light emitting units in the second light emitting area and the light emitting driver includes: and controlling the fourth electric connection end conversion device to switch the electric connection end conducted with the tenth electric connection end, so that the tenth electric connection end is conducted with the eleventh electric connection end, and the tenth electric connection end is disconnected with the twelfth electric connection end.
With reference to the fifth aspect, in certain implementations of the fifth aspect, the method is performed by a photosensitive driver within the image sensor, or by a processor within an electronic device in which the image sensor is disposed.
With reference to the fifth aspect, in certain implementations of the fifth aspect, the method further comprises: and generating a 3D image according to the signals detected by the first type of photosensitive units.
In a sixth aspect, there is provided an image processor comprising: the photosensitive units comprise a plurality of first photosensitive units and a plurality of second photosensitive units, the first photosensitive units and the second photosensitive units are arranged in an array form to form a photosensitive unit array with M1 rows and M2 columns, M1 and M2 are integers greater than 1, and the first photosensitive units and the second photosensitive units meet any one of the following conditions: at least one second type photosensitive unit is arranged between any two adjacent first type photosensitive units on any row at intervals, at least one second type photosensitive unit is arranged between any two adjacent first type photosensitive units on any column at intervals, and at least one second type photosensitive unit is arranged between any two adjacent first type photosensitive units on any diagonal line at intervals; two input ends of the first type of photosensitive unit are respectively electrically connected with the first driving connecting end and the second driving connecting end, the voltage value of the first driving connecting end is first voltage, the voltage value of the second driving connecting end is second voltage, the voltage difference of the first voltage and the second voltage is higher than the working voltage of the photosensitive unit, two input ends of the second type of photosensitive unit are respectively electrically connected with the third driving connecting end and the fourth driving connecting end, the voltage value of the third driving connecting end is third voltage, the voltage value of the fourth driving connecting end is fourth voltage, and the voltage difference of the third voltage and the fourth voltage is lower than the working voltage of the photosensitive unit.
With reference to the sixth aspect, in certain implementations of the sixth aspect, the first drive connection terminal and the third drive connection terminal are the same drive connection terminal, and the first voltage and the third voltage are the same.
With reference to the sixth aspect, in certain implementations of the sixth aspect, the plurality of light sensing units includes a target light sensing unit, the target light sensing unit includes a first input end and a second input end, and the first input end is electrically connected to the first driving connection end; the image sensor further includes: the target photosensitive unit is the first type of photosensitive unit, the first electric connection end conversion device is electrically connected with the second driving connecting end, and the target photosensitive unit is the second type of photosensitive unit, the first electric connection end conversion device is electrically connected with the fourth driving connecting end.
With reference to the sixth aspect, in certain implementations of the sixth aspect, the image sensor includes: the target photosensitive driving circuit is a driving circuit of the plurality of photosensitive units; the photosensitive driver is a driving power supply of the plurality of photosensitive units; and one end of the second electric connection end converter device is electrically connected with the target photosensitive driving circuit, and the other end of the second electric connection end converter device is electrically connected with the photosensitive driver or is in a disconnected state.
Optionally, in a case that the second electrical connection terminal converter device is electrically connected to the photosensitive driver, the photosensitive driver drives the plurality of photosensitive cells through the target photosensitive driving circuit; when the second electrical connection terminal conversion device is in an off state, the plurality of photosensitive cells are all in an undriven state.
With reference to the sixth aspect, in certain implementations of the sixth aspect, the electrical connection terminal conversion device is a metal oxide semiconductor field effect MOS transistor.
In a seventh aspect, a 3D camera is provided, including: the camera lens comprises an image sensor, the image sensor comprises a target photosensitive driving circuit, a photosensitive driver and a second electric connection end converter, the target photosensitive driving circuit is a driving circuit of the plurality of photosensitive units, the photosensitive driver is a driving power supply of the plurality of photosensitive units, one end of the second electric connection end converter is electrically connected with the target photosensitive driving circuit, and the other end of the second electric connection end converter is electrically connected with the photosensitive driver or is in a disconnected state; the light that sends of luminous component incides to image sensor after the object reflection of shooing, light follow luminous component arrives image sensor's flight time is used for generating the 3D image of shooing the object, luminous component includes a plurality of luminescence units, target sensitization drive circuit, luminous driver, third electricity connection end conversion device, the luminous drive circuit of target does the drive circuit of a plurality of luminescence units, luminous driver is a plurality of luminescence units's drive power supply, the one end of third electricity connection end converter device with the luminous drive circuit of target is connected, under the condition that the other end of second electricity connection end converter device with the sensitization driver electricity is connected, the other end of third electricity connection end converter device with luminous driver electricity is connected, under the other end of second electricity connection end converter device with the sensitization driver is in the off-state, the other end of third electricity connection end converter device with luminous driver is in the off-state.
Drawings
Fig. 1 is a schematic configuration diagram of an electronic apparatus.
Fig. 2 is a schematic diagram of an application scenario of a 3D camera.
Fig. 3 is a schematic diagram of a composite 2D image and 3D image.
Fig. 4 is a schematic diagram of an application scenario of another 3D camera.
Fig. 5 is a schematic diagram of an application scenario of another 3D camera.
Fig. 6 is a schematic diagram of an application scenario of still another 3D camera.
Fig. 7 is a schematic structural diagram of a 3D lens.
Fig. 8 is a schematic structural view of an image sensor.
Fig. 9 is a schematic configuration diagram of a driving circuit.
Fig. 10 is a light sensing schematic diagram of a light sensing unit.
Fig. 11 is a schematic configuration diagram of a plurality of photosensitive units.
Fig. 12 is a schematic structural diagram of an image processor according to an embodiment of the present application.
Fig. 13 is a schematic structural diagram of an image processor according to an embodiment of the present application.
Fig. 14 is a schematic structural diagram of a driving circuit provided in an embodiment of the present application.
Fig. 15 is a schematic structural diagram of another driving circuit provided in an embodiment of the present application.
Fig. 16 is a schematic structural diagram of a batch-driving photosensitive unit provided in an embodiment of the present application.
Fig. 17 is a schematic structural view of another batch-driving photosensitive unit provided in an embodiment of the present application.
Fig. 18 is a schematic structural diagram of a control circuit of an image sensor and a light emitting part according to an embodiment of the present application.
Fig. 19 is a schematic configuration diagram of another image sensor and a control circuit of a light emitting portion according to an embodiment of the present application.
Fig. 20 is a schematic structural diagram of a photosensitive region according to an embodiment of the present disclosure.
Fig. 21 is a schematic diagram of a driving method of a photosensitive unit according to an embodiment of the present application.
Fig. 22 is a schematic structural diagram of a photosensitive region according to an embodiment of the present disclosure.
Fig. 23 is a schematic diagram of a driving method of a photosensitive unit according to an embodiment of the present application.
Fig. 24 is a schematic structural diagram of a photosensitive region according to an embodiment of the present application.
Fig. 25 is a schematic diagram of a driving method of a photosensitive unit according to an embodiment of the present application.
Fig. 26 is a schematic flowchart of a control method of an image sensor according to an embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of an electronic device 100. The electronic device 100 may be an electronic device with a camera function, such as a mobile phone, a tablet computer, a television (or smart screen), a laptop computer, a video camera, a video recorder, a camera, and the like. For convenience of understanding, the electronic device 100 is exemplified as a mobile phone in the embodiment of the present application.
The electronic device 100 may include a display screen 10 and a housing. The housing may include a bezel and a rear cover 20. The bezel may surround the outer circumference of the display screen 10, and the bezel may surround the outer circumference of the rear cover 20. There may be a certain space between the display screen 10 and the rear cover 20. The display screen 10 may be disposed in parallel with respect to the rear cover 20.
A front camera module (CCM) 110 may be disposed on the display screen 10 of the electronic device 100. As shown in the left drawing of fig. 1, the front camera module 110 may be mounted at the upper left portion of the display screen 10. The front camera module 110 can be used for self-photographing, for example.
A rear camera module 120 may be disposed on the rear cover 20 of the electronic apparatus 100. As shown in the right drawing of fig. 1, the rear camera module 120 may be mounted on the upper left portion of the rear cover 20. The rear camera module 120 may be used to capture a scene around the electronic device 100, for example.
It should be understood that the installation positions of the front camera module 110 and the rear camera module 120 shown in fig. 1 are only illustrative, and the installation positions of the camera modules may not be limited in the present application. In some other embodiments, the front camera module 110 and the rear camera module 120 may be installed at other positions on the electronic device 100. For example, the front camera module 110 may be installed at the middle upper portion or the upper right portion of the display screen 10. As another example, the rear camera module 120 may be mounted on the middle upper portion or the right upper portion of the rear cover 20. As another example, the front camera module 110 or the rear camera module 120 may be disposed on a movable component within the electronic device 100. By moving the movable part, the movable part may be hidden within the electronic device 100 or may extend outside the electronic device 100.
It should be understood that the number of the front camera module 110 and the rear camera module 120 shown in fig. 1 is only illustrative, and the number of the camera modules may not be limited in the present application. The electronic device 100 may include a greater or lesser number of camera modules.
An application scenario of the camera module provided in the embodiment of the present application is described below with reference to fig. 2 and taking the rear camera module 120 in fig. 1 as an example.
As shown in fig. 2, the rear camera module 120 may include a primary two-dimensional (2D) camera 121 and a secondary 2D camera 122, for example. The main 2D camera 121 and the auxiliary 2D camera 122 can be used to capture 2D image information such as 2D contour, 2D pattern, color (then gray scale, color, etc.) and the like of the object 30, and obtain a 2D image (shown as 31 in fig. 3) of the object 30. The main 2D camera 121 and the auxiliary 2D camera 122 are used in a combined manner, which is beneficial to obtaining a high-resolution and high-quality 2D image.
As shown in fig. 2, the rear camera module 120 may further include a first light emitting component 124, for example. The first light emitting part 124 may be located near the primary 2D camera 121 or the secondary 2D camera 122, for example. The first light emitting part 124 may emit visible light, for example. The first light emitting part 124 may provide illumination for the primary 2D camera 121 and/or the secondary 2D camera 122. For example, at night or in a scene with dark light, the light emitted by the first light-emitting component 124 may be irradiated on the subject 30, so that the light intensity from the subject 30 captured by the main 2D camera 121 and/or the auxiliary 2D camera 122 may be increased.
As shown in fig. 2, the rear camera module 120 may further include a 3D camera 123. The 3D camera 123 can be used to capture a 3D contour of the subject 30, resulting in a 3D image of the subject 30 (shown as 32 in fig. 3).
The 3D camera 123 may include a 3D lens 1231, a second light emitting part 1232. The second light emitting part 1232 may be located near the 3D lens 1231, for example. The second light emitting part 1232 may emit infrared light, for example. In the present application, the light emitting part may be an emitter for emitting light; the image sensor within the lens may be a receiver for detecting (or capturing, receiving) light.
The distance from different positions of the subject 30 to the 3D lens 1231 may be different, and the time of flight of light from different positions of the subject 30 to the 3D lens 1231 may be different. Therefore, in one example, by measuring a direct time of flight (DToF) of light from the subject 30 to the 3D lens 1231, 3D contour information (or depth information) of the subject 30 can be obtained.
In one example, the second light emitting part 1232 is used in conjunction with the 3D lens 1231 to measure the DToF of light between the electronic device 100 and the subject 30. As shown in fig. 2, light emitted by the second light emitting part 1232 may be reflected by the subject 30 and incident on the 3D lens 1231. The distance between the second light emitting part 1232 and the 3D lens 1231 is distance a, the distance between the second light emitting part 1232 and the subject 30 is distance B, and the distance between the subject 30 and the 3D lens 1231 is distance C. The distance a may be much smaller than the distances B, C, i.e. the distance a may be negligible with respect to the distances B, C. That is, B ≈ C. Therefore, the DToF of light from the subject 30 to the 3D lens 1231 can be approximately determined by measuring the DToF light emitted from the second light emitting part 1232 to the 3D lens 1231, and thus a 3D image including 3D contour information of the subject 30 can be acquired.
By combining the 2D image (e.g., 31 in fig. 3) and the 3D image (e.g., 32 in fig. 3), a vivid 3D image (e.g., 33 in fig. 3) including both 3D contour information and 2D image information can be obtained. It should be understood that the images 31, 32, and 33 shown in fig. 3 are only schematic, and the specific parameters of the images (such as resolution, pixel size, three-dimensional model granularity, etc.) may not be limited in this application.
It is to be understood that the illustrated structure of the embodiment of the present application does not specifically limit the electronic device 100. In other embodiments of the present application, electronic device 100 may include more or fewer components than those shown. For example, electronic device 100 may include more or fewer cameras than shown. As another example, the electronic device 100 may include more or fewer light emitting components than illustrated.
In one example, the rear camera module 120 may include only the 3D camera 123, wherein the 3D camera 123 may also have the capability of taking 2D images. That is, the electronic apparatus 100 may capture a vivid 3D image including both 2D image information and 3D contour information through the 3D camera 123.
In one example, a 2D camera may multiplex the same light emitting component with a 3D camera. For example, the rear camera module 120 may include only the second light emitting part 1232.
Fig. 4 is an application scenario of another 3D camera 123 provided in the embodiment of the present application. The electronic apparatus 100 may perform operations related to face recognition through the 3D camera 123.
In one possible scenario, the electronic device 100 may obtain 3D contour information of a human face through the 3D camera 123 in the front camera module 110. The electronic device 100 may match the acquired 3D contour information with a 3D contour template stored by the electronic device 100. If the matching degree is relatively high, the electronic device 100 may determine that the face recognition is successful, and execute an operation (e.g., unlock a screen) corresponding to the successful face recognition; if the matching degree is relatively low, the electronic device 100 may determine that the face recognition fails and perform an operation corresponding to the face recognition failure (e.g., display a password input interface).
Fig. 5 is an application scenario of still another 3D camera 123 provided in the embodiment of the present application. The electronic apparatus 100 may acquire a 3D gesture of the user through the 3D camera 123 and perform an operation corresponding to the 3D gesture.
In one possible scenario, the electronic device 100 may display a prompt message "whether to delete a file? ", to ask the user whether to delete the file. The user may instruct the electronic device 100 to delete the file via the 3D confirmation gesture 34. In the event that the user makes the 3D confirm gesture 34, the electronic device 100 may display a prompt on the display screen 10 indicating that the user holds the 3D confirm gesture 34 for at least 1s, "please hold the current gesture, which may delete the file after 1s. After electronic device 100 detects that the user held 3D confirm gesture 34 for 1s, electronic device 100 may delete the file. Optionally, as shown in fig. 5, the electronic device 100 may display the 3D gesture currently captured by the 3D camera 123 in the lower left corner of the display screen 10.
In other possible scenarios, a user may use a game function of electronic device 100 and interact with electronic device 100 through 3D gestures to implement corresponding game operations.
Fig. 6 is an application scenario of a further 3D image provided in an embodiment of the present application. The electronic device 100 may establish a three-dimensional model of an entity such as a building, a home, an object, and the like through the 3D camera 123.
In one possible scenario, a user may use a 3D camera (not shown in fig. 6) to photograph a scene within a room. The scene within the room may include, for example, devices, furniture, room architecture, etc. within the room. The electronic device 100 may generate the corresponding home three-dimensional model 35 according to the captured 3D image. As shown in fig. 6, the electronic device may display the home three-dimensional model 35 on the display screen 10. Therefore, the user can intuitively observe the three-dimensional miniature of the room.
Additionally, when a user is ready to add a new item to a room, the user may operate electronic device 100 to generate a three-dimensional model of the item and a home three-dimensional model containing the item. The user can operate the electronic device 100 to adjust the placement angle, the placement position, and the like of the article in the home three-dimensional model. Thus, the user may preview the visual effect of the room after the item is added to the room.
Fig. 7 is a schematic structural diagram of a 3D lens 1231 provided in an embodiment of the present application. Wherein the 3D lens 1231 may be fixed on a mount 460 within the electronic device 100. The 3D lens 1231 may be a fixed focus lens (or a fixed focus lens), or a zoom lens. The 3D lens 1231 may also be a short focus lens, a medium long focus lens, a long focus lens, etc.
The 3D lens 1231 may include a lens barrel 410. One end of the lens barrel 410 is provided with a light inlet, through which light outside the 3D lens 1231 can enter the 3D lens 1231. The lens barrel 410 shown in fig. 7 is merely illustrative, and the structure, size, and the like of the lens barrel 410 may not be limited by the present application.
The 3D lens 1231 may further include one or more lenses 420 (lens) disposed within the lens barrel 410. Light from the light inlet of the lens barrel 410 may pass through a lens 420 within the lens barrel 410. The lenses shown in fig. 7 are merely illustrative, and the number of lenses, the lens structure, and the like may not be limited in the present application. Lens 420 may be a plastic (plastic) lens or a glass (glass) lens. The lens 420 may be a spherical lens or an aspherical lens.
The 3D lens 1231 may also include an autofocus drive assembly 430 (also may be referred to as a motor). The autofocus drive assembly 430 may be used to control the field angle of the lens 1231, autofocus, optical anti-shake, etc. The auto-focus driving assembly 430 may be assembled with an end of the lens barrel 410 away from the light inlet. The autofocus drive assembly 430 may also include, for example, a drive integrated circuit (not shown in fig. 7) or the like disposed within the housing.
The 3D lens 1231 may further include an image sensor 440 (sensor). The image sensor 440 may be a semiconductor chip. In the embodiment of the present application, the image sensor 440 may also be referred to as a dtod sensor. Hundreds of thousands to millions of photodiodes (e.g., single Photon Avalanche Diodes (SPADs)) are provided on the surface of the image sensor 440. The photodiode generates electric charges when irradiated with light, thereby converting an optical signal into an electrical signal. The image sensor 440 may be, for example, a Charge Coupled Device (CCD), a complementary metal-oxide semiconductor (CMOS), or the like. As shown in fig. 7, the image sensor 440 may be fixed to a mount 460 of the electronic device 100, for example.
The 3D lens 1231 may further include a filter 450. The filter 450 may remove unnecessary light (e.g., visible light) incident on the image sensor 440, and prevent the image sensor 440 from having image defects such as moire, thereby improving effective resolution and image reproducibility.
The 3D lens 1231 may further include, for example, a wiring board (not shown in fig. 7), a gyroscope (not shown in fig. 7), and the like. For example, the wiring board may be a Flexible Printed Circuit (FPC) or a Printed Circuit Board (PCB). The circuit board may be used to transmit the electrical signals acquired by the image sensor 440 to a processor or controller, a photo-sensing driver, etc. on the electronic device 100, for example. The gyroscope may be used to improve the anti-shake performance of the 3D lens 1231, for example.
The 3D lens 1231 may operate on the principle that light reflected by a subject may pass through one or more lenses 420 in the lens barrel 410, the auto-focus driving assembly 430, and be projected onto the surface of the image sensor 440. In order to obtain a clear and undistorted image, lens barrel 410 may be driven by autofocus driving assembly 430 to move lens 420 within lens barrel 410 to the proper position using the principle of lens imaging. Thus, the light may be focused on the image sensor 440 to form a sharp optical image. The image sensor 440 may convert the optical signal into an electrical signal, thereby obtaining image information of the subject.
Fig. 8 is a schematic structural diagram of an image sensor 440 according to an embodiment of the present application.
The image sensor 440 may include a plurality of photosensitive units 510, and the plurality of photosensitive units 510 may be arranged in an array form to form an N1 × N2 photosensitive unit array, where N1 and N2 are integers greater than 1. The light sensing unit 510 may include, for example, SPAD.
One pixel unit may correspond to one or more light sensing units 510. In conjunction with the above-described working principle of the 3D camera, the electronic device or a processor (or a controller) in the electronic device may determine image information of a target pixel unit in the 3D image according to a signal detected by at least one target photosensitive unit 510, where the target pixel unit may correspond to the at least one target photosensitive unit 510. The electronic device, or a processor (or controller) within the electronic device, can aggregate the signals detected by each photosite 510 in the N1 × N2 array of photosites to determine 3D image information of the subject.
In one example, the photo-sensing driver may drive all the photo-sensing units 510 within the image sensor 440 at once.
In another example, the photosensing driver may drive photosites 510 within the image sensor 440 in batches, i.e., only all photosites 510 within a certain photosensing area of the image sensor 440 are driven at one time.
In one possible scenario, the power source for the electronic device may be from a battery, and the amount of power supplied by the battery is relatively limited. In this case, the photo driver may not be able to control all the photo cells 510 within the image sensor 440 to be driven.
For example, within the photosensitive area formed by the N1 × N2 array of photosensitive cells, there is a target photosensitive area 520 as shown in fig. 8. One possible close-up view of the target photosensitive area 520 is shown on the right side of fig. 8. The array of photosites within the target photosensing area 520 may be part of the N1 × N2 array of photosensing units. Within the target drive batch, the photosensing driver may drive all photosensing units 510 within the target photosensing area 520, and other photosensing units 510 in the N1N 2 photosensing unit array may be in an undriven state. The rectangle filled with oblique lines in fig. 8 may indicate the photosensitive cell 510 currently driven. As shown in fig. 8, all the photosensitive cells 510 within the current target photosensitive area 520 may be in a driven state.
Fig. 9 shows a schematic block diagram of a driving circuit 600 corresponding to a target photosensitive region 520. It should be understood that the driving circuit 600 shown in fig. 9 is merely illustrative, and the present application may not limit the specific form of the driving circuit 600. For example, the driver circuit 600 corresponding to the target photosensitive area 520 may include a greater or lesser number of electronic components.
The driving circuit 600 may supply power to the plurality of light-sensing units 510 in the target light-sensing region 520. The first input terminal 591 of the light sensing unit 510 may be electrically connected to a driving connection terminal with a voltage value V0 (hereinafter, referred to as "V0 driving connection terminal"), and the second input terminal 592 of the light sensing unit 510 may be electrically connected to a driving connection terminal with a voltage value V1 (hereinafter, referred to as "V1 driving connection terminal") or a driving connection terminal with a voltage value V2 (hereinafter, referred to as "V2 driving connection terminal"). The operating voltage of the light sensing unit 510 may be, for example, V3.
In the case of V0>0, V0> V2> V1, and | V0-V1| ≧ V3> | V0-V2|. In the case where V0<0, V0< V2< V1, and | V0-V1| ≧ V3> | V0-V2|. That is, in the case that the first input terminal 591 of the light sensing unit 510 is electrically connected to the V0 driving connection terminal and the second input terminal 592 of the light sensing unit 510 is electrically connected to the V1 driving connection terminal, the load voltage of the light sensing unit 510 is greater than the operating voltage of the light sensing unit 510, so that the light sensing unit 510 can operate normally; the photosensitive unit 510 may be in a driven state at this time. Under the condition that the first input terminal 591 of the light sensing unit 510 is electrically connected to the V0 driving connection terminal and the second input terminal 592 of the light sensing unit 510 is electrically connected to the V2 driving connection terminal, the load voltage of the light sensing unit 510 is less than the working voltage of the light sensing unit 510, so that the light sensing unit 510 may not work normally; the photosensitive unit 510 may be in a state of not being driven at this time.
In one example, the load voltage of the driving connection terminal electrically connected to the second input terminal 592 of the light sensing unit 510 (e.g., from the V1 voltage value to the V2 voltage value, or from the V2 voltage value to the V1 voltage value) may be adjusted to control the light sensing unit 510 to be in a driven or non-driven state.
In another example, as shown in fig. 9, the driving circuit may further include an electrical connection terminal switching device 610, and the electrical connection terminal switching device 610 may be used to switch a driving connection terminal electrically connected to the second input terminal 592 of the light sensing unit 510. The electrical connection terminal conversion device may be a metal oxide semiconductor field effect (MOS) transistor. For example, the MOS transistor may be switched from the second input terminal 592 of the light sensing unit 510 to the V1 driving connection terminal and to the second input terminal 592 of the light sensing unit 510 to the V2 driving connection terminal, or from the second input terminal 592 of the light sensing unit 510 to the V2 driving connection terminal and to the second input terminal 592 of the light sensing unit 510 to the V1 driving connection terminal.
Fig. 10 shows a principle diagram of the light sensing unit. Fig. 10 shows 3 photoreceptors, respectively a photoreceptors 5101, a photoreceptors 5102, and a photoreceptors 5103, which are adjacently disposed. Light from a subject (as indicated by solid arrows in fig. 10) can be irradiated on the light-sensing units 5101, 5102, and 5103. A photoelectric conversion effect may occur in the light sensing unit and electron-hole pairs are formed in the light sensing unit, so that the light sensing unit may convert an optical signal into an electrical signal (as indicated by a dotted arrow in fig. 10). For example, a light signal impinging on the light sensing unit 5102 may be converted into a current I in the light sensing unit 5102 0 。
In one example, to prevent electrons in the photosensitive cells from dissociating to adjacent photosensitive cells, i.e., to reduce crosstalk of electrical signals between two adjacent photosensitive cells, a Deep Trench Isolation (DTI) may be provided between two adjacent photosensitive cells (as shown by the rectangle filled with the lattice in fig. 10). As shown in fig. 10, a deep trench isolation 711 may be provided between the photosensitive unit 5101 and the photosensitive unit 5102, and a deep trench isolation 712 may be provided between the photosensitive unit 5102 and the photosensitive unit 5103.
However, a small fraction of the electron-hole pairs within the photosensitive cell can recombine to form an optical signal. That is, in addition to the conversion of the optical signal to the electrical signal, a small portion of the conversion of the electrical signal to the optical signal may occur within the light sensing unit. Deep trench isolation due to silicon process limitationsThe distance is generally not relatively effective to block light signals from adjacent photosites. As shown in FIG. 10, electron-hole pairs in the light-sensing unit 5101 can recombine to form an optical signal λ 1 The optical signal λ 1 Can pass through the deep trench to be incident on the light sensing unit 5102 in a separated manner and be converted into electron-hole pairs in the light sensing unit 5102, so that the optical signal lambda can be generated with a certain probability 1 Corresponding current I 1 . The electron-hole pairs in the photoactive unit 5103 can recombine to form an optical signal λ 2 The optical signal λ 2 Can pass through the deep trench to be incident on the light sensing unit 5102 in a separated manner and be converted into electron-hole pairs in the light sensing unit 5102, so that the optical signal lambda can be generated with a certain probability 2 Corresponding current I 2 。
Finally, the light sensing unit 5102 converts the light signal from the subject into the current I 0 It is also possible to convert the crosstalk optical signal into a current (such as the current I mentioned above) 1 、I 2 ). In the case of SPADs, which typically have a relatively high photosensitivity, it is also possible for relatively weak optical signals to trigger relatively large currents. It can be seen that there may be crosstalk of optical signals between adjacent photosites; the crosstalk of the optical signal may affect the sensing accuracy of the light sensing unit.
Fig. 11 shows a degree of optical signal crosstalk between adjacent light sensing units. The plurality of light sensing units shown in fig. 11 may be a plurality of light sensing units within a dotted line frame in fig. 8. As shown in fig. 11, the photosensitive units adjacent to the photosensitive unit 810 include a photosensitive unit 801, a photosensitive unit 802, a photosensitive unit 803, a photosensitive unit 804, a photosensitive unit 805, a photosensitive unit 806, a photosensitive unit 807, and a photosensitive unit 808.
The photosensitive units 802, 810, 807 may be a plurality of photosensitive units in the same column. The pitch between two adjacent photosensitive units on the same column may be, for example, a line pitch a of the photosensitive units.
The photosensitive unit 804, the photosensitive unit 810, and the photosensitive unit 805 may be a plurality of photosensitive units on the same row. The pitch between adjacent two photosensitive units located on the same row may be, for example, a column pitch b of the photosensitive units.
The photosensitive units 801, 810, 808 may be a plurality of photosensitive units on the same oblique line. The photosensitive units 803, 810, and 806 are a plurality of photosensitive units on the same oblique line. The distance c between two adjacent photosensitive units on the same oblique line can be, for example
Figure BDA0002567224280000141
The oblique line may be a line that is obliquely provided with respect to both the row and the column. The oblique line may satisfy the following definition: there is a row-adjacent photosensitive cell (e.g., photosensitive cell 804 in fig. 11) adjacent to the target photosensitive cell (e.g., photosensitive cell 810 in fig. 11) in a row, a column-adjacent photosensitive cell (e.g., photosensitive cell 802 in fig. 11) adjacent to the target photosensitive cell in a column, and an obliquely-adjacent photosensitive cell (e.g., photosensitive cell 801 in fig. 11) adjacent to the target photosensitive cell in oblique lines, the row-adjacent photosensitive cell may be adjacent to the obliquely-adjacent photosensitive cell in the same column, and the column-adjacent photosensitive cell may be adjacent to the obliquely-adjacent photosensitive cell in the same row.
As can be seen from the distance between the photosensitive units, the distance between two adjacent photosensitive units in the same row or the same column may be slightly smaller than the distance between two adjacent photosensitive units on the same oblique line. Therefore, the optical crosstalk between two adjacent photosensitive cells on the same row or the same column may be slightly larger than the optical crosstalk between two adjacent photosensitive cells on the same oblique line.
Through an experimental or simulation mode, the degree of optical crosstalk between two adjacent photosensitive units can be determined. In one possible scenario, the degree of optical crosstalk between two neighboring photosensitive units in the same row or column may be about 3%. The degree of optical crosstalk between two adjacent photosensitive cells on the same oblique line may be about 0.75%. Then, the degree of optical crosstalk that the photosensitive unit 810 in fig. 11 may possibly endure may be about 3% × 4+0.75% × 4=15%.
Fig. 12 is a schematic structural diagram of an image processor 440 according to an embodiment of the present application. The difference from the image sensor 440 shown in fig. 8 may include that a plurality of first type photosensitive cells 511 that are currently driven and a plurality of second type photosensitive cells 512 that are not currently driven may be included within the target photosensitive region 520 of the image sensor 440. In fig. 12 and subsequent drawings, a rectangle filled with oblique lines may indicate the first-type photosensitive unit 511 that is currently driven. In fig. 12 and subsequent figures, the blank rectangle may represent the second type of photosensitive unit 512 that is not currently being driven.
In the example shown in fig. 12, the photosensitive cells 510 in the target photosensitive area 520 may be driven in a manner satisfying: on the same line, 1 second-type photosensitive unit 512 can be arranged between any two adjacent first-type photosensitive units 511; on the same column, 1 second type photosensitive unit 512 is arranged between any two adjacent first type photosensitive units 511; also, on the same diagonal line, the second type photosensitive unit 512 may not be spaced between any two adjacent first type photosensitive units 511.
The optical crosstalk experienced by any of the first type photosites 511 is mainly from a plurality of diagonally adjacent photosites (diagonally adjacent photosites can refer to diagonally adjacent photosites 510). In connection with the example shown in fig. 11, in one possible scenario, the degree of optical crosstalk experienced by any of the first type of photo-sensing units 511 may be about 0.75% by 4=3%.
It is assumed that each of the photosensitive cells 510 within the target photosensitive area 520 can be driven within the target photosensitive driving batch. Therefore, the target photo-sensing driving batch can comprise a plurality of photo-sensing driving sub-batches. That is, each of the photosensitive driving sub-batches only drives a part of the photosensitive cells in the target photosensitive area 520, and each of the photosensitive cells 510 in the target photosensitive area 520 can be driven by a plurality of photosensitive driving sub-batches.
The plurality of photosensitive driving sub-batches may include a 1 st photosensitive driving sub-batch and a 2 nd photosensitive driving sub-batch. Fig. 12 shows the states (including a driven state and an undriven state) of the plurality of photosensitive cells 510 within the target photosensitive region 520 for the 1 st photosensitive drive sub-batch. Fig. 13 shows the states (including a driven state and an undriven state) of the plurality of photosensitive cells 510 within the target photosensitive region 520 for the 2 nd photosensitive drive sub-batch. In the example shown in fig. 12 and 13, each photosensitive cell 510 in the target photosensitive area 520 may be driven by two photosensitive driving sub-batches.
As can be seen, the plurality of light-sensing units 510 in the target light-sensing region 520 includes a plurality of 1 st light-sensing units and a plurality of 2 nd light-sensing units. In the 1 st photosensitive driving sub-batch, the 1 st photosensitive units are driven, and the 2 nd photosensitive units are not driven; therefore, in the 1 st photosensitive driving sub-batch, the 1 st photosensitive unit belongs to the first type of photosensitive unit 511, and the 2 nd photosensitive unit belongs to the second type of photosensitive unit 512. In the 2 nd photosensitive driving sub-batch, the 1 st photosensitive units are not driven, and the 2 nd photosensitive units are driven; therefore, in the 2 nd photosensitive driving sub-batch, the 1 st photosensitive unit belongs to the second type photosensitive unit 512, and the 2 nd photosensitive unit belongs to the first type photosensitive unit 511.
That is, the first type photosensitive unit 511, which has been driven in the 1 st photosensitive driving sub-batch, may be the second type photosensitive unit 512, which has not been driven in the 2 nd photosensitive driving sub-batch. Also, the second type photosensitive unit 512, which is not driven in the 1 st photosensitive driving sub-batch, may be the first type photosensitive unit 511, which is driven in the 2 nd photosensitive driving sub-batch.
In one example, one pixel unit may correspond to one light sensing unit 510.
Assume that there is a target pixel region corresponding to the target photosensitive region 520. The target pixel region may include a plurality of pixel units in one-to-one correspondence with the plurality of light sensing units 510.
In the 1 st photosensitive driving sub-batch shown in fig. 12, an electronic device or a processor (or a controller) in the electronic device may acquire image information of a first portion of pixel units in the target pixel region, where the first portion of pixel units may correspond to the first type of photosensitive units 511 in the 1 st photosensitive driving sub-batch.
In the 2 nd photosensitive driving sub-batch shown in fig. 13, the electronic device or a processor (or a controller) in the electronic device may acquire image information of a second portion of pixel units in the target pixel region, where the second portion of pixel units may correspond to the first type of photosensitive units 511 in the 2 nd photosensitive driving sub-batch.
Therefore, in the examples shown in fig. 12 and 13, the image information of the target pixel region can be obtained by two photosensitive driving lots.
In one example, one pixel unit may correspond to a plurality of light sensing units 510.
Assume that there is a target pixel cell corresponding to the plurality of photosensitive cells 510 within the target photosensitive area 520. Since in the examples shown in fig. 12, 13, complete image information of the target pixel unit may not be obtained by only one photosensitive driving sub-batch. The detection signals of all the photosensitive cells 510 in the target photosensitive region 520 can be obtained through the 1 st and 2 nd photosensitive driving sub-batches as described above. Therefore, the electronic device or a processor (or a controller) in the electronic device may determine the image information of the target pixel unit according to the signal detected by the 1 st photo-sensing driving sub-batch and the signal detected by the 2 nd photo-sensing driving sub-batch.
Fig. 14 is a schematic block diagram of a driving circuit 600 corresponding to a target photosensitive region 520 according to an embodiment of the present disclosure. It should be understood that the driving circuit 600 shown in fig. 14 is merely illustrative, and the present application may not limit the specific form of the driving circuit 600. For example, the driving circuit 600 may include a greater or lesser number of electronic elements.
A photosensitive driver (not shown in fig. 14) within the image sensor may supply power to the photosensitive unit 510 through the driving circuit 600. The photo driver may include a first driving connection terminal 911, a second driving connection terminal 912, and a third driving connection terminal 913; the voltage value of the first driving connection terminal 911 may be V0, the voltage value of the second driving connection terminal 912 may be V1, and the voltage value of the third driving connection terminal 913 may be V2. The operating voltage of the light sensing unit 510 may be V3. In the case of V0>0, V0> V2> V1, and | V0-V1| ≧ V3> | V0-V2|. In the case where V0<0, V0< V2< V1, and | V0-V1| ≧ V3> | V0-V2|.
The driving circuit 600 may include a plurality of light sensing cells 510, and a plurality of first electrical connection terminal conversion devices 610 in one-to-one correspondence with the plurality of light sensing cells 510. The first electrical connection terminal conversion device 610 may be a MOS transistor. The light sensing units 510 may be connected in series with the corresponding first electrical connection terminal conversion devices 610.
The light sensing unit 510 may include a first input terminal 521 and a second input terminal 522. The first input terminal 521 can be electrically connected to a first driving connection terminal 911 of the photo driver.
The first electrical connection terminal conversion device 610 may include a first electrical connection terminal 611, a second electrical connection terminal 612, and a third electrical connection terminal 613. The first electrical connection terminal 611 may be electrically connected with the second input terminal 522 of the light sensing unit 510. The second electrical connection terminal 612 of the first electrical connection terminal conversion device 610 may be electrically connected with the second driving connection terminal 912 of the photosensitive driver. The third electrical connection terminal 613 of the first electrical connection terminal conversion device 610 may be electrically connected with the third drive connection terminal 913 of the photo driver.
The first electrical connection terminal conversion device 610 can switch the electrical connection terminal conducted with the first electrical connection terminal 611, so that the first electrical connection terminal 611 is conducted with the second electrical connection terminal 612 (and the first electrical connection terminal 611 is disconnected with the third electrical connection terminal 613), or the first electrical connection terminal 611 is conducted with the third electrical connection terminal 613 (and the first electrical connection terminal 611 is disconnected with the second electrical connection terminal 612). Thus, the first electrical connection terminal conversion device 610 can adjust the load voltage of the light sensing unit.
For example, when the first electrical connection end 611 of the first electrical connection end conversion device 610 is electrically connected to the second electrical connection end 612, the load voltage of the light sensing unit 510 may be | V0-V1|, and the load voltage of the light sensing unit 510 is greater than the operating voltage of the light sensing unit 510, so that the light sensing unit 510 can operate normally, i.e., in a driven state. For another example, when the first electrical connection end 611 and the third electrical connection end 613 are connected, the load voltage of the light sensing unit 510 may be | V0-V2|, and at this time, the load voltage of the light sensing unit 510 is less than the working voltage of the light sensing unit 510, so that the light sensing unit 510 may not work normally, i.e., is in an undriven state.
In connection with the examples shown in fig. 12 and 13, fig. 14 shows a specific electrical connection manner of the first type photosensitive unit 511 and the second type photosensitive unit 512. The load voltage of the first type of photo-sensing unit 511 may be | V0-V1|, and the load voltage of the second type of photo-sensing unit 512 may be | V0-V2|. As can be seen from fig. 14, any two adjacent photosensitive cells 510 are electrically connected in a different manner on the same row. In addition, any two adjacent photosensitive cells 510 in the same row are electrically connected in different manners.
Fig. 15 is a schematic block diagram of a driving circuit 600 corresponding to a target photosensitive area 520 according to an embodiment of the present disclosure. It should be understood that the driving circuit 600 shown in fig. 15 is merely illustrative, and the present application may not limit the specific form of the driving circuit 600. For example, the driving circuit 600 may include a greater or lesser number of electronic elements.
A photosensitive driver (not shown in fig. 14) within the image sensor may supply power to the photosensitive unit 510 through the driving circuit 600. The photosensitive driver may include a fourth driving connection 914, a fifth driving connection 915; the voltage value of the fourth driving connection terminal 914 may be V0, and the voltage value of the fifth driving connection terminal 915 may be V1. The working voltage of the light sensing unit 510 may be V3, | V0-V1| ≧ V3.
The driving circuit 600 may include a plurality of light sensing units 510. The third input terminal 523 of each photosensitive cell 510 may be electrically connected to the fourth driving connection terminal 914 of the photosensitive driver. The plurality of photosensitive cells 510 may include a plurality of 1 st photosensitive cells 510a, and a plurality of 2 nd photosensitive cells 510b. The 1 st light sensing unit 510a may include a third input terminal 523a, a fourth input terminal 524a. The 2 nd photosensitive unit 510b may include a fifth input terminal 523b, a sixth input terminal 524b. The third input terminal 523a and the fifth input terminal 523b may be electrically connected to the fourth driving connection terminal 914 of the photosensitive driver.
The second electrical connection terminal conversion device 620 may include a fourth electrical connection terminal 621, a fifth electrical connection terminal 622, and a sixth electrical connection terminal 623. The fourth electrical connection terminal 621 may be electrically connected to the fourth input terminal 524a of the 1 st photosensitive cell 510 a. The fifth electrical connection terminal 622 of the second electrical connection terminal conversion device 620 may be electrically connected with the sixth input terminal 524b of the 2 nd light sensing unit 510b. The sixth electrical connection terminal 623 of the second electrical connection terminal conversion device 620 may be electrically connected with the fifth driving connection terminal 915 of the photosensitive driver.
The second electrical connection terminal switching device 620 can switch the electrical connection terminal connected to the sixth electrical connection terminal 623, such that the sixth electrical connection terminal 623 is connected to the fourth electrical connection terminal 621 (and the sixth electrical connection terminal 623 is disconnected from the fifth electrical connection terminal 622), or the sixth electrical connection terminal 623 is connected to the fifth electrical connection terminal 622 (and the sixth electrical connection terminal 623 is disconnected from the fourth electrical connection terminal 621). Thus, the second electrical connection terminal conversion device 620 can adjust the load voltage of the light sensing unit 510.
For example, when the sixth electrical connection terminal 623 of the second electrical connection terminal conversion device 620 is electrically connected to the fourth electrical connection terminal 621, the load voltage of the 1 st photo-sensing unit 510a may be | V0-V1|, and the load voltage of the 1 st photo-sensing unit 510a is greater than the working voltage of the photo-sensing unit 510, so that the 1 st photo-sensing unit 510a can work normally, i.e., is in a driven state; at the same time, the sixth electrical connection 623 is disconnected from the fifth electrical connection 622; the 2 nd photo sensing unit 510b is in an off state (the load voltage of the photo sensing unit 510 may be regarded as approximately 0), and the load voltage of the 2 nd photo sensing unit 510b is less than the operating voltage of the photo sensing unit 510, so the 2 nd photo sensing unit 510b may not normally operate, i.e., in an undriven state.
In addition, in this case, the 1 st photosensitive unit 510a belongs to the first type photosensitive unit 511, and the 2 nd photosensitive unit 510b belongs to the second type photosensitive unit 512.
Similar to the above description, it is not necessary to describe in detail herein for the case that the sixth electrical connection terminal 623 is connected to the fifth electrical connection terminal 622 and the sixth electrical connection terminal 623 is disconnected from the fourth electrical connection terminal 621.
In connection with the examples shown in fig. 12 and 13, fig. 15 shows an electrical connection manner of the first type photosensitive cell 511 and the second type photosensitive cell 512. As can be seen from FIG. 15, the load voltage of the first type of photosensitive unit 511 can be | V0-V1|, and the second type of photosensitive unit 512 can be in the OFF state. That is, on the same row, any two adjacent photosensitive cells 510 are electrically connected in different manners. In addition, any two adjacent photosensitive cells 510 in the same row are electrically connected in different manners.
Other possible embodiments of the driver circuit 600 will occur to those skilled in the art, having the benefit of the teachings presented in the associated description and associated drawings. Therefore, it is to be understood that the application is not limited to the specific embodiments disclosed.
As described above, in one possible scenario, the photo-sensing driver 910 may not be able to drive all of the photo-sensing units within the image sensor 440 at the same time. The photosensitive driver 910 may drive the photosensitive units in the image sensor 440 in batches, i.e., in different driving batches, the photosensitive units in different photosensitive areas are driven.
As shown in fig. 16, the image sensor 440 may include n photosensitive regions, i is greater than or equal to 1 and less than or equal to n, n is greater than or equal to 1, and n is an integer, i is 1 st photosensitive region, 2 nd photosensitive region, 82308230, i is 8230, and n is 8230.
The total batch of the photosensitive cell array driven by the photosensitive driver 910 may include n photosensitive driving batches, and the n photosensitive driving batches may correspond to the n photosensitive regions one to one. That is, the photo-sensing driver 910 can drive different photo-sensing areas in different photo-sensing driving batches.
For example, as shown in FIG. 16, the n photo-sensing driving lots may include a 1 st photo-sensing driving lot, a 2 nd photo-sensing driving lot, \8230;, an ith photo-sensing driving lot, \8230;, and an nth photo-sensing driving lot. In the ith photosensitive driving batch, the photosensitive driver 910 may drive a plurality of photosensitive units in the ith photosensitive area.
In one example, the image sensor 440 may further include a third electrical connection terminal conversion device 630, and the power applying region of the image sensor 440 may be changed by the third electrical connection terminal conversion device 630. The third electrical connection terminal conversion device 630 may be a MOS transistor.
Referring to fig. 16, the following description will take the example where the photosensitive driver 910 drives the 1 st photosensitive area and turns off the 2 nd photosensitive area. Other possible embodiments of batch-driven photosensitive units will occur to those skilled in the art, given the benefit of the teachings presented in the associated description and associated drawings. Therefore, it is to be understood that the application is not limited to the specific embodiments disclosed.
The third electrical connection terminal conversion device 630 can include a seventh electrical connection terminal 631, an eighth electrical connection terminal 632, a ninth electrical connection terminal 633. The seventh electrical connection terminal 631 may be electrically connected with the photosensitive driver 910. The eighth electrical connection terminal 632 may be electrically connected to the electrical signal input terminal of the 1 st photosensitive region, so that the photosensitive driver 910 may be electrically connected to the photosensitive cells in the 1 st photosensitive region through the third electrical connection terminal conversion device 630. The ninth electrical connection terminal 633 may be electrically connected to the electrical signal input terminal of the 2 nd photosensitive region, so that the photosensitive driver 910 may be electrically connected to the photosensitive unit in the 2 nd photosensitive region through the third electrical connection terminal conversion device 630. The third electrical connection terminal switching device 630 can switch the electrical connection terminal electrically connected to the seventh electrical connection terminal 631, such that the seventh electrical connection terminal 631 is electrically connected to the eighth electrical connection terminal 632 (and the seventh electrical connection terminal 631 is electrically disconnected from the ninth electrical connection terminal 633), or the seventh electrical connection terminal 631 is electrically disconnected from the ninth electrical connection terminal 633 (and the seventh electrical connection terminal 631 is electrically connected to the eighth electrical connection terminal 632).
In conjunction with the examples shown in fig. 12 and 13, the target photosensitive driving batch in the n photosensitive driving batches may include 2 photosensitive driving sub-batches (e.g., the 1 st photosensitive driving sub-batch and the 2 nd photosensitive driving sub-batch shown in fig. 12 and 13). Referring to fig. 16, a specific manner of driving the photosensitive cell array by the photosensitive driver 910 will be described by taking the 1 st photosensitive area and the 2 nd photosensitive area as an example.
As shown in fig. 16, the relative position of the 1 st photosensitive unit group (e.g., the rectangle marked with "1" in fig. 16) in the 1 st photosensitive area may correspond to the relative position of the 3 rd photosensitive unit group (e.g., the rectangle marked with "3" in fig. 16) in the 2 nd photosensitive area. Similarly, the relative position of the 2 nd photosensitive unit group (e.g., the rectangle labeled "2" in fig. 16) within the 1 st photosensitive region in the 1 st photosensitive region may correspond to the relative position of the 4 th photosensitive unit group (e.g., the rectangle labeled "4" in fig. 16) within the 2 nd photosensitive region in the 2 nd photosensitive region.
First, the photo driver 910 may perform the 1 st photo driving lot. Accordingly, the photosensitive cells within the 1 st photosensitive area may be driven in batches. As shown in fig. 16, the seventh electrical connection end 631 of the third electrical connection end conversion device 630 can be conducted with the eighth electrical connection end 632. Alternatively, none of the photosensitive cells in the other photosensitive regions (except the 1 st photosensitive region) in the image sensor 440 may be driven.
Wherein, the 1 st photosensitive driving batch further comprises the 1 st photosensitive driving sub-batch and the 2 nd photosensitive driving sub-batch. In the 1 st photo-sensing drive sub-batch of the 1 st photo-sensing drive batch, the 1 st photo-sensing cell group within the 1 st photo-sensing region may be driven, and the 2 nd photo-sensing cell group within the 1 st photo-sensing region may be in an undriven state. In this case, the photosensitive cells in the 1 st photosensitive cell group may belong to the first type photosensitive cell 511 described above, and the photosensitive cells in the 2 nd photosensitive cell group may be the second type photosensitive cell 512 described above.
Similarly, in the 2 nd photo-sensing drive sub-batch of the 1 st photo-sensing drive batch, the 2 nd photo-sensing cell group within the 1 st photo-sensing region may be driven, and the 1 st photo-sensing cell group within the 1 st photo-sensing region may be in an undriven state. In this case, the photosensitive cells in the 2 nd photosensitive cell group may belong to the first type photosensitive cell 511 described above, and the photosensitive cells in the 1 st photosensitive cell group may be the second type photosensitive cell 512 described above.
Thereafter, the photo driver 910 may perform the 2 nd photo driving lot. Accordingly, the photosensitive cells within the 2 nd photosensitive area may be driven in batches. As shown in fig. 16, the seventh electrical connection end 631 of the third electrical connection end conversion device 630 can be electrically connected with the ninth electrical connection end 633. Alternatively, none of the photosensitive cells in the other photosensitive regions (except the 2 nd photosensitive region) in the image sensor 440 may be driven.
Wherein, the 2 nd photosensitive driving batch further comprises the 1 st photosensitive driving sub-batch and the 2 nd photosensitive driving sub-batch. In the 1 st photo-sensing drive sub-batch of the 2 nd photo-sensing drive batch, the 3 rd photo-sensing cell group within the 2 nd photo-sensing area may be driven, and the 4 th photo-sensing cell group within the 2 nd photo-sensing area may be in an undriven state. In this case, the photosensitive cells in the 3 rd photosensitive cell group may belong to the first type photosensitive cell 511 described above, and the photosensitive cells in the 4 th photosensitive cell group may be the second type photosensitive cell 512 described above.
Similarly, in the 2 nd photo-sensing drive sub-batch of the 2 nd photo-sensing drive batch, the 4 th photo-sensing cell group within the 2 nd photo-sensing area may be driven, and the 3 rd photo-sensing cell group within the 2 nd photo-sensing area may be in an undriven state. In this case, the photosensitive cells in the 4 th photosensitive cell group may belong to the first type photosensitive cell 511 described above, and the photosensitive cells in the 3 rd photosensitive cell group may be the second type photosensitive cell 512 described above.
Fig. 17 shows another driving manner of the photosensitive cells in the 1 st photosensitive region and the 2 nd photosensitive region. As shown in fig. 17, the relative position of the 3 rd photosensitive unit group (e.g., the rectangle marked with "3" in fig. 17) in the 2 nd photosensitive area within the 2 nd photosensitive area may correspond to the relative position of the 2 nd photosensitive unit group (e.g., the rectangle marked with "2" in fig. 17) in the 2 nd photosensitive area within the 1 st photosensitive area. Similarly, the relative position of the 4 th photosensitive cell group (e.g., the rectangle labeled "4" in fig. 17) within the 2 nd photosensitive region in the 2 nd photosensitive region may correspond to the relative position of the 1 st photosensitive cell group (e.g., the rectangle labeled "1" in fig. 17) within the 1 st photosensitive region in the 1 st photosensitive region.
The photo driver 910 may perform the 1 st photo driving lot. The 1 st photo-sensing driving batch further includes the 1 st and 2 nd photo-sensing driving sub-batches described above. In the 1 st overdriving sub-batch of the 1 st overdriving batch, the 1 st photosensitive cell group within the 1 st photosensitive region may be driven, and the 2 nd photosensitive cell group within the 1 st photosensitive region may be in an undriven state. In the 2 nd photo-sensing drive sub-batch of the 1 st photo-sensing drive batch, the 2 nd photo-sensing unit group within the 1 st photo-sensing region may be driven, and the 1 st photo-sensing unit group may be in an undriven state.
The photo driver 910 may perform the 2 nd photo driving lot. The 2 nd photo-sensing driving batch further includes the 1 st and 2 nd photo-sensing driving sub-batches described above. In the 1 st photo-sensing drive sub-batch of the 2 nd photo-sensing drive batch, the 3 rd photo-sensing cell group within the 2 nd photo-sensing area may be driven, and the 4 th photo-sensing cell group within the 2 nd photo-sensing area may be in an undriven state. In the 2 nd photo-sensing drive sub-batch of the 2 nd photo-sensing drive batch, the 4 th photo-sensing cell group within the 2 nd photo-sensing region may be driven, and the 3 rd photo-sensing cell group may be in an undriven state.
As can be seen from the examples shown in fig. 16 and 17, the driving order of the photosensitive cells in different photosensitive areas may be different.
Other possible driving schemes for the image sensor 440 will be apparent to those skilled in the art, given the benefit of the teachings presented in the associated description and associated drawings. Therefore, it is to be understood that the application is not limited to the specific embodiments disclosed.
According to the above-described principle of capturing a 3D image, in one possible scenario, the electronic device or a processor (or a controller) of the electronic device may acquire a 3D image of the subject according to the light emitted from the light emitting part 1232 to the dtod entering the 3D camera.
The light emitting driver 920 may perform n light emitting driving batches on the light emitting part 1232, and the n light emitting driving batches may correspond to the n photo-sensing driving batches one to one.
For example, the n light emission driving lots may include a 1 st light emission driving lot, a 2 nd light emission driving lot, \8230;, an ith light emission driving lot, \8230;, an nth light emission driving lot. The ith light-emitting driving batch can correspond to the ith photosensitive driving batch.
According to the example shown in fig. 12, 13, each of the n photo-sensing driving batches may in turn include 2 photo-sensing driving sub-batches. Optionally, each of the n light-emitting driving batches may further include 2 light-emitting driving sub-batches. The 2 light-emitting driving sub-batches can correspond to the 2 photosensitive driving sub-batches one by one.
For example, the 1 st emission driving sub-lot of the ith emission driving lot may correspond to the 1 st photo-sensing driving sub-lot of the ith photo-sensing driving lot, and the 2 nd emission driving sub-lot of the ith emission driving lot may correspond to the 2 nd photo-sensing driving sub-lot of the ith photo-sensing driving lot.
Assume that the time when the light emitting driver 920 drives the light emitting part 1232 to emit the light signal in the 1 st light emitting driving sub-batch of the ith light emitting driving batch is t i1 Accordingly, in the 1 st photo-sensing sub-batch of the ith photo-sensing sub-batch, the time when the target photo-sensing unit detects the optical signal is t i1 '. The electronic device or a processor (or controller) of the electronic device may obtain that the DToF corresponding to the target light sensing unit is t i1 ’－t i1 。
The light emitting part 1232 may include a plurality of light emitting units.
In one example, the light emitting driver 920 may drive the same light emitting unit to emit light in different light emitting driving lots.
For example, the light emitting driver 920 may drive all light emitting units within the light emitting part 1232 in each of the n light emitting driving lots.
In another example, the light emitting driver 920 may drive different light emitting units to emit light in different light emission driving lots. For example, the photosensitive region of the image sensor 440 is equally divided into n, and n photosensitive regions can be obtained. Then, the light emitting regions of the light emitting section 1232 are equally divided in the same way, and n light emitting regions corresponding to the n light sensing regions one by one are obtained. The n light emitting regions can comprise a 1 st light emitting region, a 2 nd light emitting region, \8230 \ 8230: \8230: \, an n light emitting region, i is more than or equal to 1 and less than or equal to n, and i and n are integers. Wherein the ith light emitting region may correspond to the ith light sensing region.
Alternatively, in the ith light emission driving batch, the light emitting unit in the ith light emitting region may expose the subject one or more times. Accordingly, in the ith photosensitive driving batch, the photosensitive unit in the ith photosensitive area can detect the optical signal from the object once or more. The one or more exposures may correspond one-to-one to the one or more detections.
Fig. 18 is a schematic structural diagram of a control circuit of the image sensor 440 and the light emitting part 1232 according to an embodiment of the present application.
The main processor (or main controller) of the electronic device may control the 3D camera to perform a photographing operation of the 3D image. The processor (or controller, etc.) of the 3D camera may control the light emitting driver 920 to drive the light emitting unit within the light emitting part 1232, and the processor (or controller, etc.) of the 3D camera may cooperatively control the photo-sensing driver 910 of the image sensor 440 to drive the photo-sensing unit within the image sensor 440.
For the ith light emission driving lot (or ith light sensing driving lot), the photo driver 910 may notify the light emission driver 920 of the light emission part 1232 through an interface between the image sensor 440 and the light emission part 1232 to drive the light emission unit within the ith light emission region. Thereafter, the light emitting driver 920 may be electrically connected with the light emitting cells in the ith light emitting region. Accordingly or simultaneously, the light sensing driver 910 may drive the light sensing units within the ith light sensing region. Finally, the electronic device may acquire a portion of 3D image information of the subject, and the portion of 3D image information may correspond to the ith photosensitive area.
Next, with reference to fig. 18, the light-emitting driver 920 will drive the 1 st light-emitting region and turn off the 2 nd light-emitting region.
The light emitting part 1232 may include a fourth electrical connection terminal conversion device 640. By this fourth electrical connection terminal conversion device 640, the energization region of the light emitting part 1232 can be changed. The fourth electrical connection terminal switching device 640 may be a MOS transistor.
The fourth electrical connection terminal conversion device 640 may include a tenth electrical connection terminal 641, an eleventh electrical connection terminal 642, a twelfth electrical connection terminal 643. The tenth electrical connection end 641 may be electrically connected with the light emitting driver 920. The eleventh electrical connection terminal 642 may be electrically connected to an electrical signal input terminal of the 1 st light-emitting region, so that the light-emitting driver 920 may be electrically connected to the light-emitting cells in the 1 st light-emitting region through the fourth electrical connection terminal switching device 640. The twelfth electrical connection 643 may be electrically connected to an electrical signal input terminal of the 2 nd light emitting region, so that the light emitting driver 920 may be electrically connected to the light emitting unit in the 2 nd light emitting region through the fourth electrical connection converting device 640. The fourth electrical connection terminal conversion device 640 can switch the electrical connection terminal electrically connected to the tenth electrical connection terminal 641, so that the tenth electrical connection terminal 641 is electrically connected to the eleventh electrical connection terminal 642 (and the tenth electrical connection terminal 641 is electrically disconnected from the twelfth electrical connection terminal 643), or the tenth electrical connection terminal 641 is electrically disconnected from the twelfth electrical connection terminal 643 (and the tenth electrical connection terminal 641 is electrically connected to the eleventh electrical connection terminal 642).
Fig. 19 is a schematic configuration diagram of another control circuit of the image sensor 440 and the light emitting part 1232 according to the embodiment of the present application.
The main processor (or main controller) of the electronic device may control the photo driver 910 of the image sensor 440 to drive the photo cells. The main processor (or main controller) of the electronic apparatus may also drive the light emitting unit in cooperation with the light emitting driver 920 controlling the light emitting part 1232.
Specifically, for the ith light emission driving lot (or ith photo-sensing driving lot), the host processor (or host controller) of the electronic device may notify the light emission driver 920 of the light emission part 1232 through an interface between the host processor (or host controller) and the light emission part 1232 to drive the light emission unit in the ith light emission area. Accordingly or simultaneously, the main processor (or main controller) of the electronic device may notify the light sensing driver 910 of the image sensor 440 through an interface between the main processor (or main controller) and the image sensor 440 to drive the light sensing units in the ith light sensing area. Finally, the electronic device may acquire a portion of 3D image information of the subject, and the portion of 3D image information may correspond to the ith photosensitive area.
Assume that the image sensor 440 can acquire a 3D image with a resolution of 320 x 240.
In one example, the electronic device or a processor (or controller) of the electronic device may drive the image sensor 440 in batches, as described with reference to the embodiment shown in fig. 8. That is, the electronic device or a processor (or controller) of the electronic device drives all the photosensitive cells within the target photosensitive region 520 within the target driving lot. Assuming that the number of batches to drive the image sensor 440 is 8 times, accordingly, the image sensor 440 may be divided into 8 photosensitive regions, each of which may correspond to an image block with a resolution of 320 × 30 (or an image block with a resolution of 40 × 240, an image block with a resolution of 80 × 120, an image block with a resolution of 160 × 60, etc.), for example.
In one example, the electronic device or a processor (or controller) of the electronic device may drive the image sensor 440 in batches with reference to the embodiments shown in fig. 12 to 19. That is, the electronic device or a processor (or controller) of the electronic device drives only the first type of photosensitive cells 511 within the target photosensitive region 520 within the target driving lot. Assuming that the number of batches of driving the image sensor 440 is still 8 times, and each photo-sensing driving batch further includes 2 photo-sensing driving sub-batches, accordingly, the image sensor 440 may be divided into 4 photo-sensing regions, and each photo-sensing region may correspond to an image block with a resolution of 320 × 60 (or an image block with a resolution of 80 × 240, an image block with a resolution of 160 × 120, etc.), for example.
As described above, in the case where the image sensor 440 needs to be driven in batches, only a portion of the photosensitive cells within the target driving batch may be driven without additionally increasing the driving batch of the image sensor 440.
Other possible driving schemes for the image sensor 440 will be apparent to those skilled in the art, given the benefit of the teachings presented in the associated description and associated drawings. Therefore, it is to be understood that the application is not limited to the specific embodiments disclosed.
Fig. 20 is a schematic structural diagram of a target photosensitive area according to an embodiment of the present disclosure. Fig. 21 shows a driving manner of the plurality of photosensitive cells in the target photosensitive region.
The image sensor includes a plurality of first type photosensitive cells 511 that are currently driven and a plurality of second type photosensitive cells 512 that are not currently driven. The driving mode of the photosensitive unit in the target photosensitive area can meet the following requirements: on the same line, there may be 1 second-type photosensitive unit 512 between any two adjacent first-type photosensitive units 511. In addition, 1 second photosensitive unit 512 is spaced between any two adjacent first photosensitive units 511 in the same column. On the same diagonal line, 1 second-type photosensitive cell 512 is provided between any two adjacent first-type photosensitive cells 511. As can be seen from the above-mentioned optical crosstalk principle of the photosensitive units, the control manner of the photosensitive units shown in fig. 20 is beneficial to reducing the optical crosstalk degree borne by the photosensitive units.
As shown in fig. 21, by 4 photosensitive drive sub-batches, it can be realized that all the photosensitive cells are driven. The 4 photosensitive driving sub-batches are respectively the 1 st photosensitive driving sub-batch, the 2 nd photosensitive driving sub-batch, the 3 rd photosensitive driving sub-batch and the 4 th photosensitive driving sub-batch.
Accordingly, the photosensitive cells within the target photosensitive region may be divided into 4 photosensitive cell groups. The 4 photosensitive unit groups correspond to the 4 photosensitive driving sub-batches one by one. That is, each photosensitive driving sub-batch may drive a corresponding photosensitive cell group. The 4 photosensitive cell groups may be a 1 st photosensitive cell group (a rectangle denoted by "1" in fig. 21), a 2 nd photosensitive cell group (a rectangle denoted by "2" in fig. 21), a 3 rd photosensitive cell group (a rectangle denoted by "3" in fig. 21), and a 4 th photosensitive cell group (a rectangle denoted by "4" in fig. 21), respectively.
For example, the 1 st photosensitive driving sub-batch may drive the 1 st photosensitive cell group; the 2 nd photosensing drive sub-batch can drive the 2 nd photosensing unit group; the 3 rd photosensing drive sub-batch can drive the 3 rd photosensing unit group; the 4 th photosensitive driving sub-batch may drive the 4 th photosensitive cell group.
It can be seen that the first type of photosensitive cells 511, which were driven in the previous photosensitive driving sub-batch, can be the second type of photosensitive cells 512, which were not driven in the next photosensitive driving sub-batch; the second type of photosensitive cells 512 which are not driven in the previous photosensitive driving sub-batch can be the first type of photosensitive cells 511 which are driven in the next photosensitive driving sub-batch or the second type of photosensitive cells 512 which are not driven. The first type of photosensitive cells 511, which are driven in the subsequent photosensitive driving sub-batch, may be the second type of photosensitive cells 512, which are not driven in the previous photosensitive driving sub-batch; the second type of photosensitive cells 512 which are not driven in the subsequent photosensitive driving sub-batch can be the first type of photosensitive cells 511 which are driven in the previous photosensitive driving sub-batch or the second type of photosensitive cells 512 which are not driven.
In one example, one pixel unit may correspond to one light sensing unit. Assuming that there is one target pixel region corresponding to the target photosensitive region, the target photosensitive region may include a plurality of photosensitive cells, and the target pixel region may include a plurality of pixel cells corresponding to the plurality of photosensitive cells one to one. In the 4 photosensitive driving sub-batches shown in fig. 21, the electronic device can sequentially acquire image information of a small portion of pixel units in the target pixel region. After the 4 photosensitive driving sub-batches, all the photosensitive cells in the target photosensitive area can be successfully driven, so that the electronic device can acquire the image information of all the pixel cells in the target pixel area.
In one example, one pixel unit may correspond to a plurality of light sensing units. Assume that there is a target pixel cell corresponding to a plurality of photosensitive cells within a target photosensitive area. After 4 photosensitive driving sub-batches shown in fig. 21, all the photosensitive cells in the target photosensitive area can be successfully driven. Therefore, the electronic device can determine the image information of the target pixel unit according to the signals detected in the 4 photosensitive driving sub-batches.
The driving circuit, the control circuit of the light emitting part and the image sensor, the control mode of the light emitting part and the image sensor, and the like of the embodiments shown in fig. 20 and 21 can refer to the embodiments shown in fig. 12 to 19, and detailed description thereof is not necessary.
Fig. 22 is a schematic structural diagram of a target photosensitive area according to an embodiment of the present disclosure. Fig. 23 shows a driving manner of the plurality of photosensitive cells in the target photosensitive region.
The image sensor includes a plurality of first type photosensitive cells 511 that are currently driven and a plurality of second type photosensitive cells 512 that are not currently driven. The driving mode of the photosensitive unit in the target photosensitive area can meet the following requirements: on the same line, 3 second-type photosensitive units 512 can be arranged between any two adjacent first-type photosensitive units 511. In addition, 3 second photosensitive cells 512 are arranged between any two adjacent first photosensitive cells 511 on the same column. On the same diagonal line, 1 second-type photosensitive cell 512 is provided between any two adjacent first-type photosensitive cells 511. As can be seen from the above-mentioned principle of optical crosstalk of the photosensitive units, the control manner of the photosensitive units shown in fig. 22 is beneficial to reducing the degree of optical crosstalk borne by the photosensitive units.
As shown in fig. 23, the photosensitive cells within the target photosensitive region may be divided into 8 photosensitive cell groups. The 8 photosensitive cell groups may be a 1 st photosensitive cell group (a rectangle denoted by "1" in fig. 23), a 2 nd photosensitive cell group (a rectangle denoted by "2" in fig. 23), a 3 rd photosensitive cell group (a rectangle denoted by "3" in fig. 23), a 4 th photosensitive cell group (a rectangle denoted by "4" in fig. 23), a 5 th photosensitive cell group (a rectangle denoted by "5" in fig. 23), a 6 th photosensitive cell group (a rectangle denoted by "6" in fig. 23), a 7 th photosensitive cell group (a rectangle denoted by "7" in fig. 23), and an 8 th photosensitive cell group (a rectangle denoted by "8" in fig. 23), respectively. Through 8 sensitization drive sub-batches corresponding to the 8 sensitization unit groups one by one, and each sensitization drive sub-batch can drive the corresponding sensitization unit group, can realize that whole sensitization units are driven.
In one example, one pixel unit may correspond to one light sensing unit. It is assumed that there is a target pixel region corresponding to the target photosensitive region. In conjunction with the above, after the 8 photosensing drive sub-batches, all photosensing units within the target photosensing area can be successfully driven. The electronic device can acquire image information of all pixel units in the target pixel area.
In one example, one pixel unit may correspond to a plurality of light sensing units. Assume that there is one target pixel cell corresponding to a plurality of light-sensing cells within a target light-sensing region. In conjunction with the above, after the 8 photosensitive driving sub-batches, all the photosensitive cells in the target photosensitive area can be successfully driven. Therefore, the electronic device can determine the image information of the target pixel unit according to the signals detected in the 8 photosensitive driving sub-batches.
The driving circuit, the control circuit of the light emitting part and the image sensor, the control mode of the light emitting part and the image sensor, and the like of the embodiments shown in fig. 22 and 23 can refer to the embodiments shown in fig. 12 to 19, and detailed description thereof is not necessary.
Fig. 24 is a schematic structural diagram of a target photosensitive area according to an embodiment of the present disclosure. Fig. 25 shows a driving manner of the plurality of photosensitive cells in the target photosensitive region.
The image sensor includes a plurality of first type photosensitive cells 511 that are currently driven and a plurality of second type photosensitive cells 512 that are not currently driven. The driving mode of the photosensitive unit in the target photosensitive area can meet the following requirements: on the same line, 3 second-type photosensitive units 512 can be arranged between any two adjacent first-type photosensitive units 511. In addition, 3 second photosensitive cells 512 are arranged between any two adjacent first photosensitive cells 511 on the same column. On the same diagonal line, 1 second-type photosensitive cell 512 is spaced between any two adjacent first-type photosensitive cells 511. As can be seen from the above-mentioned principle of optical crosstalk of the photosensitive units, the control manner of the photosensitive units shown in fig. 24 is beneficial to reducing the degree of optical crosstalk borne by the photosensitive units.
As shown in fig. 25, the photosensitive cells within the target photosensitive region may be divided into 9 photosensitive cell groups. The 9 photosensitive cell groups may be a 1 st photosensitive cell group (a rectangle denoted by "1" in fig. 25), a 2 nd photosensitive cell group (a rectangle denoted by "2" in fig. 25), a 3 rd photosensitive cell group (a rectangle denoted by "3" in fig. 25), a 4 th photosensitive cell group (a rectangle denoted by "4" in fig. 25), a 5 th photosensitive cell group (a rectangle denoted by "5" in fig. 25), a 6 th photosensitive cell group (a rectangle denoted by "6" in fig. 25), a 7 th photosensitive cell group (a rectangle denoted by "7" in fig. 25), an 8 th photosensitive cell group (a rectangle denoted by "8" in fig. 25), and a 9 th photosensitive cell group (a rectangle denoted by "9" in fig. 25), respectively. By 9 photosensitive driving sub-batches corresponding to the 9 photosensitive unit groups one by one, and each photosensitive driving sub-batch can drive the corresponding photosensitive unit group, all the photosensitive units can be driven.
In one example, one pixel unit may correspond to one light sensing unit. It is assumed that there is a target pixel region corresponding to the target photosensitive region. In conjunction with the above, after the 9 photosensing drive sub-batches, all photosensing units within the target photosensing area can be successfully driven. The electronic device can acquire image information of all pixel units in the target pixel area.
In one example, one pixel unit may correspond to a plurality of light sensing units. Assume that there is one target pixel cell corresponding to a plurality of light-sensing cells within a target light-sensing region. In conjunction with the above, after the 9 photosensing drive sub-batches, all photosensing units within the target photosensing area can be successfully driven. Therefore, the electronic device can determine the image information of the target pixel unit according to the signals detected in the 9 photosensitive driving sub-batches.
The driving circuit, the control circuit of the light emitting part and the image sensor, the control mode of the light emitting part and the image sensor, and the like of the embodiments shown in fig. 24 and 25 can refer to the embodiments shown in fig. 12 to 19, and detailed description thereof is not necessary.
Fig. 26 is a schematic flowchart of a control method of the image sensor 440 according to an embodiment of the present disclosure. The method shown in fig. 26 may apply the image sensor 440 described above, or a 3D camera or an electronic device including the image sensor 440. The method may be performed by the controller (or control module, control unit, etc.) or the processor (or processing module, processing unit, etc.), the driver (or driving module, driving unit, etc.), and the like in the image sensor 440, the 3D camera, or the electronic device described above.
The image sensor 440 may include a photosensitive cell array including a plurality of photosensitive cells.
2601, determining a plurality of first type and/or a plurality of second type of photosensitive units from the plurality of photosensitive units, the first type and the second type satisfying any one of: at least one second-type photosensitive unit is arranged between any two adjacent first-type photosensitive units in any row at intervals, at least one second-type photosensitive unit is arranged between any two adjacent first-type photosensitive units in any column at intervals, and at least one second-type photosensitive unit is arranged between any two adjacent first-type photosensitive units in any diagonal line at intervals.
And 2602, controlling the load voltage of the first photosensitive unit to be a first voltage, and controlling the load voltage of the second photosensitive unit to be a second voltage, wherein the first voltage is higher than the working voltage of the photosensitive unit, and the second voltage is lower than the working voltage of the photosensitive unit.
Optionally, the photosensitive unit includes a first input end and a second input end; the photosensitive driver comprises a first driving connecting end, a second driving connecting end and a third driving connecting end, the voltage difference between the first driving connecting end and the second driving connecting end is the first voltage, and the voltage difference between the first driving connecting end and the third driving connecting end is the second voltage; the image sensor further comprises a first electric connection end conversion device, wherein the first electric connection end conversion device comprises a first electric connection end, a second electric connection end and a third electric connection end, and the first electric connection end conversion device is used for switching between conduction of the first electric connection end and the second electric connection end and conduction of the first electric connection end and the third electric connection end; the photosensitive unit is electrically connected with a first driving connecting end of the photosensitive driver through the first input end, the photosensitive unit is electrically connected with a first electric connecting end of the first electric connecting end conversion device through the second input end, the first electric connecting end conversion device is electrically connected with a second driving connecting end of the photosensitive driver through the second electric connecting end, and the first electric connecting end conversion device is electrically connected with a third driving connecting end of the photosensitive driver through the third electric connecting end; the controlling the load voltage of the first type of photosensitive unit to be a first voltage and the controlling the load voltage of the second type of photosensitive unit to be a second voltage includes: the first electric connection end conversion device is controlled to switch the electric connection end conducted with the first electric connection end, so that under the condition that the photosensitive unit belongs to the first type of photosensitive unit, the first electric connection end is conducted with the second electric connection end, the first electric connection end is disconnected with the third electric connection end, under the condition that the photosensitive unit belongs to the second type of photosensitive unit, the first electric connection end is conducted with the third electric connection end, and the first electric connection end is disconnected with the second electric connection end.
Optionally, the plurality of photosensitive units include a plurality of first photosensitive units and a plurality of second photosensitive units, and the first photosensitive units include a third input end and a fourth input end; the second photosensitive unit comprises a fifth input end and a sixth input end; the photosensitive driver comprises a fourth driving connecting end and a fifth driving connecting end, and the voltage difference between the fourth driving connecting end and the fifth driving connecting end is the first voltage; the image sensor further comprises a second electric connection end conversion device, the second electric connection end conversion device comprises a fourth electric connection end, a fifth electric connection end and a sixth electric connection end, and the second electric connection end conversion device is used for switching between conduction of the fourth electric connection end and the sixth electric connection end and conduction of the fifth electric connection end and the sixth electric connection end; the first photosensitive unit is electrically connected with a fourth driving connecting end of the photosensitive driver through the third input end, and the first photosensitive unit is electrically connected with a fourth electric connecting end of the second electric connecting end conversion device through the fourth input end; the second photosensitive unit is electrically connected with a fourth driving connecting end of the photosensitive driver through the fifth input end, and the second photosensitive unit is electrically connected with a fifth electric connecting end of the second electric connecting end conversion device through the sixth input end; the second electric connection end conversion device is electrically connected with the fifth driving connection end of the photosensitive driver through the sixth electric connection end, the load voltage of the first type of photosensitive unit is controlled to be the first voltage, and the load voltage of the second type of photosensitive unit is controlled to be the second voltage, and the method comprises the following steps: and controlling the second electric connection end conversion device to switch the electric connection end conducted with the sixth electric connection end, so that the fourth electric connection end is conducted with the sixth electric connection end, and the fifth electric connection end is disconnected with the sixth electric connection end, or the fifth electric connection end is conducted with the sixth electric connection end, and the fourth electric connection end is disconnected with the sixth electric connection end.
Optionally, before the determining a plurality of first type photosensitive cells and/or a plurality of second type photosensitive cells from the plurality of photosensitive cells, the method further includes: determining a photosensitive unit in a first photosensitive area and/or a photosensitive unit in a second photosensitive area, wherein the first photosensitive area and the second photosensitive area are two unconnected photosensitive areas of the image sensor, and the plurality of photosensitive units are all located in the first photosensitive area; and controlling the photosensitive unit in the first photosensitive area to be electrically connected with the photosensitive driver, and cutting off the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver.
Optionally, the image sensor further includes: a third electrical connection end conversion device, where the third electrical connection end conversion device includes a seventh electrical connection end, an eighth electrical connection end, and a ninth electrical connection end, the third electrical connection end conversion device is used to switch between the eighth electrical connection end being conducted with the seventh electrical connection end and the ninth electrical connection end being conducted with the seventh electrical connection end, the third electrical connection end conversion device is electrically connected with the photosensitive driver through the seventh electrical connection end, the third electrical connection end conversion device is electrically connected with the photosensitive unit in the first photosensitive region through the eighth electrical connection end, and the third electrical connection end conversion device is electrically connected with the photosensitive unit in the second photosensitive region through the ninth electrical connection end; control photosensitive unit in the first sensitization region with the sensitization driver electricity is connected, cuts off photosensitive unit in the second sensitization region with electricity between the sensitization driver is connected, includes: and controlling the third electric connection end conversion device to switch the electric connection end conducted with the seventh electric connection end, so that the seventh electric connection end is conducted with the eighth electric connection end, and the seventh electric connection end is disconnected with the ninth electric connection end.
Optionally, the method is applied to a 3D camera, where the 3D camera includes a light emitting component, the light emitting component includes a plurality of light emitting units, and before the controlling the photosensitive units in the first photosensitive region to be electrically connected to the photosensitive driver and the disconnecting the electrical connection between the photosensitive units in the second photosensitive region and the photosensitive driver, the method further includes: determining a light emitting unit in a first light emitting area and/or a light emitting unit in a second light emitting area from the plurality of light emitting units, the first light emitting area corresponding to the first photosensitive area, the second light emitting area corresponding to the second photosensitive area; control photosensitive unit in the first sensitization region with the sensitization driver electricity is connected, cuts off photosensitive unit in the second sensitization region with electricity between the sensitization driver is connected, includes: and cooperatively controlling the light emitting unit in the first light emitting area to be electrically connected with the light emitting driver, and the light sensing unit in the first light sensing area to be electrically connected with the light sensing driver, and cooperatively cutting off the electric connection between the light emitting unit in the second light emitting area and the light emitting driver and the electric connection between the light sensing unit in the second light sensing area and the light sensing driver.
Optionally, the light emitting part further includes: a fourth electrical connection end conversion device, including a tenth electrical connection end, an eleventh electrical connection end, and a twelfth electrical connection end, where in the case where one of the twelfth electrical connection ends is connected to the tenth electrical connection end, the other electrical connection end is disconnected from the tenth electrical connection end, the fourth electrical connection end conversion device is electrically connected to the light-emitting driver through the tenth electrical connection end, the fourth electrical connection end converter is electrically connected to the light-emitting unit in the first light-emitting region through the eleventh electrical connection end, and the fourth electrical connection end converter is electrically connected to the light-emitting unit in the second light-emitting region through the twelfth electrical connection end; the controlling the light emitting units in the first light emitting area to be electrically connected with the light emitting driver and the cutting off the electrical connection between the light emitting units in the second light emitting area and the light emitting driver includes: and controlling the fourth electric connection end conversion device to switch the electric connection end conducted with the tenth electric connection end, so that the tenth electric connection end is conducted with the eleventh electric connection end, and the tenth electric connection end is disconnected with the twelfth electric connection end.
Optionally, the method is performed by a photosensitive driver in the image sensor, or by a processor in an electronic device in which the image sensor is disposed.
Optionally, the method further includes: and generating a 3D image according to the signals detected by the first type of photosensitive units.
Optionally, a plurality of sensitization units include 4 sensitization unit groups, 4 sensitization unit groups include target sensitization unit group, sensitization unit in the target sensitization unit group belongs to first type sensitization unit, sensitization unit in the remaining 3 sensitization unit groups in 4 sensitization unit groups belongs to second type sensitization unit, target sensitization unit group does arbitrary sensitization unit group in 4 sensitization unit groups, first type sensitization unit and second type sensitization unit satisfy: on same line, two arbitrary adjacent first type sensitization units between the interval have 1 second type sensitization unit, on same row, two arbitrary adjacent first type sensitization units between the interval have 1 second type sensitization unit to, on same slash, two arbitrary adjacent first type sensitization units between the interval have 1 second type sensitization unit.
Optionally, a plurality of sensitization units include 8 sensitization unit groups, 8 sensitization unit groups include target sensitization unit group, sensitization unit in the target sensitization unit group belongs to first type sensitization unit, sensitization unit in the remaining 7 sensitization unit groups in the 8 sensitization unit groups belongs to second type sensitization unit, target sensitization unit group does arbitrary sensitization unit group in the 8 sensitization unit groups, first type sensitization unit and second type sensitization unit satisfy: on same line, there are 3 between two arbitrary adjacent first kind sensitization units second kind sensitization unit, on same row, two arbitrary adjacent interval have 3 between the first kind sensitization unit second kind sensitization unit to, on same slash, two arbitrary adjacent interval have 1 between the first kind sensitization unit second kind sensitization unit.
Optionally, a plurality of sensitization units include 9 sensitization unit groups, 9 sensitization unit groups include target sensitization unit group, sensitization unit in the target sensitization unit group belongs to first type sensitization unit, sensitization unit in the remaining 8 sensitization unit groups in the 9 sensitization unit groups belongs to second type sensitization unit, target sensitization unit group does arbitrary sensitization unit group in the 9 sensitization unit groups, first type sensitization unit and second type sensitization unit satisfy: on same line, two arbitrary adjacent first type sensitization units between the interval have 2 second type sensitization unit, on same row, two arbitrary adjacent first type sensitization units between the interval have 2 second type sensitization unit to, on same slash, two arbitrary adjacent first type sensitization units between the interval have 2 second type sensitization unit.
The following is another control method of an image sensor provided in an embodiment of the present application, including: determining a plurality of first photosensitive units and a plurality of second photosensitive units from a plurality of photosensitive units, wherein the first photosensitive units and the second photosensitive units meet the following conditions: on the same row, 1 second photosensitive unit is arranged between any two adjacent first photosensitive units on the same column, and on the same inclined line, no second photosensitive unit is arranged between any two adjacent first photosensitive units; in a first driving sub-batch, driving the first photosensitive unit and closing the second photosensitive unit; and in a second driving sub-batch, driving the second photosensitive unit and closing the first photosensitive unit.
The electronic device 100 provided by the embodiment of the present application may include a memory, a processor (or controller, driver, etc.), a communication interface, and a bus. Wherein, the memory, the processor (or controller, driver, etc.), and the communication interface realize the communication connection with each other through the bus.
The memory may be a Read Only Memory (ROM), a static memory device, a dynamic memory device, or a Random Access Memory (RAM). The memory may store a program, and when the program stored in the memory is executed by the processor (or the controller, the driver, or the like), the processor (or the controller, the driver, or the like) is configured to execute the steps of the control method of the image sensor illustrated in fig. 26 in the embodiment of the present application.
The processor (or the controller, the driver, etc.) may adopt a general-purpose Central Processing Unit (CPU), a microprocessor, an Application Specific Integrated Circuit (ASIC), a Graphics Processing Unit (GPU) or one or more integrated circuits, and is configured to execute a relevant program to implement the method for controlling the image sensor shown in fig. 26 in this embodiment.
The processor (or controller, driver, etc.) may also be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the control method of the image sensor shown in fig. 26 in the embodiment of the present application may be implemented by an integrated logic circuit of hardware in a processor or instructions in the form of software.
The processor (or controller, driver, etc.) may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an FPGA (field programmable gate array) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory, and performs, in combination with hardware thereof, functions required to be performed by a unit included in the electronic device 100 of the embodiment of the present application, or performs a control method of the image sensor shown in fig. 26 in the embodiment of the present application.
The communication interface enables communication between the electronic device 100 and other devices or communication networks using transceiver means such as, but not limited to, a transceiver.
A bus may comprise a pathway that transfers information between various components of electronic device 100, such as memory, a processor (or controller, drive, etc.), and a communication interface.
It should be understood that the processing module in the electronic device 100 may correspond to a processor (or controller, driver, etc.).
The 3D camera 123 provided in the embodiment of the present application may include a memory, a processor (or a controller, a driver, etc.), a communication interface, and a bus. For the description of the memory, the processor (or the controller, the driver, etc.), the communication interface and the bus, reference may be made to the memory, the processor (or the controller, the driver, etc.), the communication interface and the bus in the electronic device 100, and detailed description thereof is not necessary.
In the embodiment of the application, the crosstalk between the DToF photosensitive units is favorably reduced through the mode. Furthermore, 3D image information with clearer resolution and higher accuracy can be obtained.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In other words, the shown or discussed couplings or direct couplings or communication connections between each other may be through some interfaces,
the indirect coupling or communication connection of the devices or units may be electrical, mechanical or other.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (20)

1. An image sensor (440), comprising:
a plurality of photosensitive units (510), the plurality of photosensitive units (510) being arranged in an array;
a photo-sensitive driver (910), the photo-sensitive driver (910) to:
determining a plurality of first type of photosensitive cells (511) and/or a plurality of second type of photosensitive cells (512) from the plurality of photosensitive cells (510);
controlling a load voltage of the first type photosensitive unit (511) to be a first voltage, controlling a load voltage of the second type photosensitive unit (512) to be a second voltage, wherein the first voltage is higher than an operating voltage of the photosensitive unit (510), the second voltage is lower than the operating voltage of the photosensitive unit (510), and the first type photosensitive unit (511) and the second type photosensitive unit (512) meet any one of the following conditions:
at least one second type photosensitive unit (512) is arranged between any two adjacent first type photosensitive units (511) on any row,
at least one second type photosensitive unit (512) is arranged between any two adjacent first type photosensitive units (511) on any column in an interval manner, an
At least one second type photosensitive unit (512) is arranged between any two adjacent first type photosensitive units (511) on any inclined line in an interval mode.
2. The image sensor (440) of claim 1,
the photosensitive unit (510) comprises a first input end (521) and a second input end (522);
the photosensitive driver (910) comprises a first driving connection terminal (911), a second driving connection terminal (912) and a third driving connection terminal (913), wherein the voltage difference between the first driving connection terminal (911) and the second driving connection terminal (912) is the first voltage, and the voltage difference between the first driving connection terminal (911) and the third driving connection terminal (913) is the second voltage;
the image sensor (440) further comprises a first electrical connection end conversion device (610), wherein the first electrical connection end conversion device (610) comprises a first electrical connection end (611), a second electrical connection end (612) and a third electrical connection end (613), and the first electrical connection end conversion device (610) is used for switching between conduction of the first electrical connection end (611) and the second electrical connection end (612) and conduction of the first electrical connection end (611) and the third electrical connection end (613);
the photosensitive unit (510) is electrically connected with a first driving connection end (911) of the photosensitive driver (910) through the first input end (521), the photosensitive unit (510) is electrically connected with a first electric connection end (611) of the first electric connection end conversion device (610) through the second input end (522), the first electric connection end conversion device (610) is electrically connected with a second driving connection end (912) of the photosensitive driver (910) through the second electric connection end (612), and the first electric connection end conversion device (610) is electrically connected with a third driving connection end (913) of the photosensitive driver (910) through the third electric connection end (613);
the controlling the load voltage of the first type photosensitive unit (511) to be a first voltage and the controlling the load voltage of the second type photosensitive unit (512) to be a second voltage comprises the following steps:
controlling the first electrical connection terminal switching device (610) to switch the electrical connection terminal conducted with the first electrical connection terminal (611) such that
When the photosensitive unit (510) belongs to the first type of photosensitive unit (511), the first electrical connection end (611) is connected with the second electrical connection end (612), and the first electrical connection end (611) is disconnected with the third electrical connection end (613),
when the photosensitive cell (510) belongs to the second type of photosensitive cell (512), the first electrical connection end (611) and the third electrical connection end (613) are connected, and the first electrical connection end (611) and the second electrical connection end (612) are disconnected.
3. The image sensor (440) of claim 1, wherein the plurality of photosites (510) comprises a plurality of first photosites (510 a), a plurality of second photosites (510 b),
the first photosensitive unit (510 a) comprises a third input terminal (523 a), a fourth input terminal (524 a);
the second photosensitive unit (510 b) comprises a fifth input terminal (523 b), a sixth input terminal (524 b);
the photosensitive driver (910) comprises a fourth driving connection end (914) and a fifth driving connection end (915), and the voltage difference between the fourth driving connection end (914) and the fifth driving connection end (915) is the first voltage;
the image sensor (440) further comprises a second electric connection end conversion device (620), the second electric connection end conversion device (620) comprises a fourth electric connection end (621), a fifth electric connection end (622) and a sixth electric connection end (623), and the second electric connection end conversion device (620) is used for switching between conduction of the fourth electric connection end (621) and the sixth electric connection end (623) and conduction of the fifth electric connection end (622) and the sixth electric connection end (623);
the first photosensitive unit (510 a) is electrically connected with a fourth driving connection end (914) of the photosensitive driver (910) through the third input end (523 a), and the first photosensitive unit (510 a) is electrically connected with a fourth electric connection end (621) of the second electric connection end conversion device (620) through the fourth input end (524 a);
the second photosensitive unit (510 b) is electrically connected with a fourth driving connection end (914) of the photosensitive driver (910) through the fifth input end (523 b), and the second photosensitive unit (510 b) is electrically connected with a fifth electric connection end (622) of the second electric connection end conversion device (620) through the sixth input end (524 b);
the second electric connection terminal conversion device (620) is electrically connected with a fifth driving connection terminal (915) of the photosensitive driver (910) through the sixth electric connection terminal (623),
the controlling the load voltage of the first type photosensitive unit (511) to be a first voltage and the controlling the load voltage of the second type photosensitive unit (512) to be a second voltage comprises the following steps:
controlling the second electrical connection terminal switching device (620) to switch the electrical connection terminal conducted with the sixth electrical connection terminal (623) such that
The fourth electrical connection end (621) is connected to the sixth electrical connection end (623), and the fifth electrical connection end (622) is disconnected from the sixth electrical connection end (623), or,
the fifth electrical connection end (622) is connected with the sixth electrical connection end (623), and the fourth electrical connection end (621) is disconnected with the sixth electrical connection end (623).
4. The image sensor (440) of any of claims 1 to 3,
the photosensitive driver (910) is further configured to, before determining a plurality of first type photosensitive cells (511) and/or a plurality of second type photosensitive cells (512) from the plurality of photosensitive cells (510), determine a photosensitive cell (510) in a first photosensitive region and a photosensitive cell (510) in a second photosensitive region, the first photosensitive region and the second photosensitive region being two unconnected photosensitive regions of the image sensor (440), the plurality of photosensitive cells (510) being located in the first photosensitive region;
the photosensitive driver (910) is further used for controlling the photosensitive unit (510) in the first photosensitive area to be electrically connected with the photosensitive driver (910) and cutting off the electrical connection between the photosensitive unit (510) in the second photosensitive area and the photosensitive driver (910).
5. The image sensor (440) of claim 4, wherein the image sensor (440) further comprises:
a third electrical connection end conversion device (630), wherein the third electrical connection end conversion device (630) includes a seventh electrical connection end (631), an eighth electrical connection end (632), and a ninth electrical connection end (633), the third electrical connection end conversion device (630) is configured to switch between conduction of the eighth electrical connection end (632) and the seventh electrical connection end (631), conduction of the ninth electrical connection end (633) and the seventh electrical connection end (631), the third electrical connection end conversion device (630) is electrically connected to the photosensitive driver (910) through the seventh electrical connection end (631), the third electrical connection end conversion device (630) is electrically connected to the photosensitive unit (510) in the first photosensitive region through the eighth electrical connection end (632), and the third electrical connection end conversion device (630) is electrically connected to the photosensitive unit (510) in the second photosensitive region through the ninth electrical connection end (633);
the controlling the photosensitive unit (510) in the first photosensitive area to be electrically connected with the photosensitive driver (910) and the disconnecting the electrical connection between the photosensitive unit (510) in the second photosensitive area and the photosensitive driver (910) comprises:
and controlling the third electric connection end conversion device (630) to switch the electric connection end conducted with the seventh electric connection end (631), so that the seventh electric connection end (631) is conducted with the eighth electric connection end (632), and the seventh electric connection end (631) is disconnected with the ninth electric connection end (633).
6. The image sensor (440) of any of claims 2, 3, 5, wherein the electrical connection conversion device is a metal oxide semiconductor field effect MOS transistor.
7. A3D camera, comprising:
a lens comprising the image sensor (440) of any of claims 1 to 5;
a light emitting part (1232) that reflects light emitted from the light emitting part (1232) and enters the image sensor (440), and a time of flight of the light from the light emitting part (1232) to the image sensor (440) is used to generate a 3D image of the subject.
8. The 3D camera according to claim 7, wherein the image sensor (440) is the image sensor (440) of claim 4 or 5, the light emitting part (1232) comprising:
a plurality of light emitting units;
a light emission driver (920) for determining a light emission unit in a first light emission region corresponding to the first photosensitive region and/or a light emission unit in a second light emission region corresponding to the second photosensitive region from among the plurality of light emission units;
the light-emitting driver (920) is further configured to control the light-emitting unit in the first light-emitting area to be electrically connected with the light-emitting driver (920) and to cut off the electrical connection between the light-emitting unit in the second light-emitting area and the light-emitting driver (920) when the light-sensing unit (510) in the first light-sensing area is electrically connected with the light-sensing driver (910) and the light-sensing unit (510) in the second light-sensing area is disconnected from the light-sensing driver (910).
9. The 3D camera according to claim 8, wherein the light emitting part (1232) further comprises:
a fourth electrical connection terminal conversion means (640), said fourth electrical connection terminal conversion means (640) comprising a tenth electrical connection terminal (641), an eleventh electrical connection terminal (642), a twelfth electrical connection terminal (643), said fourth electrical connection terminal conversion means (640) for switching between said eleventh electrical connection terminal (642) being in conduction with said tenth electrical connection terminal (641), said twelfth electrical connection terminal (643) being in conduction with said tenth electrical connection terminal (641), said fourth electrical connection terminal conversion means (640) being electrically connected with a light emitting driver (920) through said tenth electrical connection terminal (641), said fourth electrical connection terminal conversion means (640) being electrically connected with a light emitting cell in the first light emitting region through said eleventh electrical connection terminal (642), said fourth electrical connection terminal conversion means (640) being electrically connected with a light emitting cell in the second light emitting region through said twelfth electrical connection terminal (643);
the controlling the light emitting units in the first light emitting area to be electrically connected with the light emitting driver (920) and cutting off the electrical connection between the light emitting units in the second light emitting area and the light emitting driver (920) comprises:
and controlling the fourth electric connection terminal conversion device (640) to switch the electric connection terminal conducted with the tenth electric connection terminal (641), so that the tenth electric connection terminal (641) is conducted with the eleventh electric connection terminal (642) and the tenth electric connection terminal (641) is disconnected with the twelfth electric connection terminal (643).
10. An electronic device, comprising: the image sensor (440) of any of claims 1 to 5.
11. An electronic device, comprising:
the 3D camera of any of claims 7 to 9;
and the processor is used for controlling the 3D camera to shoot the 3D image.
12. A method of controlling an image sensor (440), the image sensor (440) comprising a plurality of light-sensing units (510) arranged in an array, the method comprising:
determining a plurality of first type of photosensitive cells (511) and/or a plurality of second type of photosensitive cells (512) from the plurality of photosensitive cells (510);
controlling a load voltage of the first type photosensitive unit (511) to be a first voltage, controlling a load voltage of the second type photosensitive unit (512) to be a second voltage, wherein the first voltage is higher than an operating voltage of the photosensitive unit (510), the second voltage is lower than the operating voltage of the photosensitive unit (510), and the first type photosensitive unit (511) and the second type photosensitive unit (512) meet any one of the following conditions:
at least one second type photosensitive unit (512) is arranged between any two adjacent first type photosensitive units (511) on any row,
at least one second type photosensitive unit (512) is arranged between any two adjacent first type photosensitive units (511) on any column in an interval manner, an
At least one second type photosensitive unit (512) is arranged between any two adjacent first type photosensitive units (511) on any inclined line in an interval mode.
13. The method of claim 12,
the photosensitive unit (510) comprises a first input end (521) and a second input end (522);
the photosensitive driver (910) comprises a first driving connection terminal (911), a second driving connection terminal (912) and a third driving connection terminal (913), wherein the voltage difference between the first driving connection terminal (911) and the second driving connection terminal (912) is the first voltage, and the voltage difference between the first driving connection terminal (911) and the third driving connection terminal (913) is the second voltage;
the image sensor (440) further comprises a first electrical connection terminal conversion device (610), wherein the first electrical connection terminal conversion device (610) comprises a first electrical connection terminal (611), a second electrical connection terminal (612) and a third electrical connection terminal (613), and the first electrical connection terminal conversion device (610) is used for switching between conduction of the first electrical connection terminal (611) and the second electrical connection terminal (612) and conduction of the first electrical connection terminal (611) and the third electrical connection terminal (613);
the photosensitive unit (510) is electrically connected with a first driving connection end (911) of the photosensitive driver (910) through the first input end (521), the photosensitive unit (510) is electrically connected with a first electric connection end (611) of the first electric connection end conversion device (610) through the second input end (522), the first electric connection end conversion device (610) is electrically connected with a second driving connection end (912) of the photosensitive driver (910) through the second electric connection end (612), and the first electric connection end conversion device (610) is electrically connected with a third driving connection end (913) of the photosensitive driver (910) through the third electric connection end (613);
the controlling the load voltage of the first type photosensitive unit (511) to be a first voltage and the controlling the load voltage of the second type photosensitive unit (512) to be a second voltage comprises the following steps:
controlling the first electrical connection terminal switching device (610) to switch the electrical connection terminal conducted with the first electrical connection terminal (611) such that
When the photosensitive unit (510) belongs to the first type of photosensitive unit (511), the first electrical connection end (611) is connected with the second electrical connection end (612), and the first electrical connection end (611) is disconnected with the third electrical connection end (613),
when the photosensitive cell (510) belongs to the second type of photosensitive cell (512), the first electrical connection end (611) and the third electrical connection end (613) are connected, and the first electrical connection end (611) and the second electrical connection end (612) are disconnected.
14. The method of claim 12, wherein the plurality of photosites (510) comprises a plurality of first photosites (510 a), a plurality of second photosites (510 b),
the first photosensitive unit (510 a) comprises a third input end (523 a) and a fourth input end (524 a);
the second photosensitive unit (510 b) comprises a fifth input terminal (523 b), a sixth input terminal (524 b);
the photosensitive driver (910) comprises a fourth driving connection end (914) and a fifth driving connection end (915), and the voltage difference between the fourth driving connection end (914) and the fifth driving connection end (915) is the first voltage;
the image sensor (440) further comprises a second electric connection end conversion device (620), the second electric connection end conversion device (620) comprises a fourth electric connection end (621), a fifth electric connection end (622) and a sixth electric connection end (623), and the second electric connection end conversion device (620) is used for switching between conduction of the fourth electric connection end (621) and the sixth electric connection end (623) and conduction of the fifth electric connection end (622) and the sixth electric connection end (623);
the first photosensitive unit (510 a) is electrically connected with a fourth driving connection end (914) of the photosensitive driver (910) through the third input end (523 a), and the first photosensitive unit (510 a) is electrically connected with a fourth electric connection end (621) of the second electric connection end conversion device (620) through the fourth input end (524 a);
the second photosensitive unit (510 b) is electrically connected with a fourth driving connection end (914) of the photosensitive driver (910) through the fifth input end (523 b), and the second photosensitive unit (510 b) is electrically connected with a fifth electric connection end (622) of the second electric connection end conversion device (620) through the sixth input end (524 b);
the second electric connection terminal conversion device (620) is electrically connected with a fifth driving connection terminal (915) of the photosensitive driver (910) through the sixth electric connection terminal (623),
the controlling the load voltage of the first type photosensitive unit (511) to be a first voltage and the controlling the load voltage of the second type photosensitive unit (512) to be a second voltage comprises the following steps:
controlling the second electrical connection terminal switching device (620) to switch the electrical connection terminal conducted with the sixth electrical connection terminal (623) such that
The fourth electrical connection end (621) is connected to the sixth electrical connection end (623), and the fifth electrical connection end (622) is disconnected from the sixth electrical connection end (623), or,
the fifth electrical connection end (622) is connected with the sixth electrical connection end (623), and the fourth electrical connection end (621) is disconnected with the sixth electrical connection end (623).
15. The method according to claim 13 or 14, wherein before said determining a plurality of first type of photosensitive cells (511) and/or a plurality of second type of photosensitive cells (512) from said plurality of photosensitive cells (510), said method further comprises:
determining a photosensitive unit (510) in a first photosensitive area and/or a photosensitive unit (510) in a second photosensitive area, wherein the first photosensitive area and the second photosensitive area are two unconnected photosensitive areas of the image sensor (440), and the plurality of photosensitive units (510) are located in the first photosensitive area;
and controlling the photosensitive unit (510) in the first photosensitive area to be electrically connected with the photosensitive driver (910), and cutting off the electrical connection between the photosensitive unit (510) in the second photosensitive area and the photosensitive driver (910).
16. The method of claim 15, wherein the image sensor (440) further comprises:
a third electrical connection end conversion device (630), where the third electrical connection end conversion device (630) includes a seventh electrical connection end (631), an eighth electrical connection end (632), and a ninth electrical connection end (633), the third electrical connection end conversion device (630) is configured to switch between conduction of the eighth electrical connection end (632) and the seventh electrical connection end (631), conduction of the ninth electrical connection end (633) and the seventh electrical connection end (631), the third electrical connection end conversion device (630) is electrically connected to the photosensitive driver (910) through the seventh electrical connection end (631), the third electrical connection end conversion device (630) is electrically connected to the photosensitive unit (510) in the first photosensitive region through the eighth electrical connection end (632), and the third electrical connection end conversion device (630) is electrically connected to the photosensitive unit (510) in the second photosensitive region through the ninth electrical connection end (633);
the controlling the photosensitive unit (510) in the first photosensitive area to be electrically connected with the photosensitive driver (910) and the disconnecting the electrical connection between the photosensitive unit (510) in the second photosensitive area and the photosensitive driver (910) comprises:
and controlling the third electric connection end conversion device (630) to switch the electric connection end conducted with the seventh electric connection end (631), so that the seventh electric connection end (631) is conducted with the eighth electric connection end (632), and the seventh electric connection end (631) is disconnected with the ninth electric connection end (633).
17. The method of claim 15, wherein the method is applied to a 3D camera, the 3D camera comprises a light emitting part (1232), the light emitting part (1232) comprises a plurality of light emitting units, and before the controlling the electrical connection between the light sensing unit (510) in the first light sensing region and the light sensing driver (910) and the disconnecting the electrical connection between the light sensing unit (510) in the second light sensing region and the light sensing driver (910), the method further comprises:
determining a light emitting unit in a first light emitting area and/or a light emitting unit in a second light emitting area from the plurality of light emitting units, the first light emitting area corresponding to the first photosensitive area, the second light emitting area corresponding to the second photosensitive area;
the controlling the photosensitive unit (510) in the first photosensitive region to be electrically connected with the photosensitive driver (910) and the disconnecting the electrical connection between the photosensitive unit (510) in the second photosensitive region and the photosensitive driver (910) comprises:
and cooperatively controlling the light emitting unit in the first light emitting area to be electrically connected with a light emitting driver (920), and cooperatively cutting off the electrical connection between the light emitting unit in the second light emitting area and the light emitting driver (920) and the electrical connection between the light sensing unit (510) in the second light sensing area and the light sensing driver (910), wherein the light sensing unit (510) in the first light sensing area is electrically connected with the light sensing driver (910).
18. The method of claim 17, wherein the light emitting component (1232) further comprises:
a fourth electrical connection terminal conversion means (640), said fourth electrical connection terminal conversion means (640) comprising a tenth electrical connection terminal (641), an eleventh electrical connection terminal (642), a twelfth electrical connection terminal (643), said eleventh electrical connection terminal (642) being disconnected from said tenth electrical connection terminal (641) in the case where one of said twelfth electrical connection terminals (643) is electrically connected with said tenth electrical connection terminal (641), said fourth electrical connection terminal conversion means (640) being electrically connected with said light emitting driver (920) through said tenth electrical connection terminal (641), said fourth electrical connection terminal conversion means (640) being electrically connected with a light emitting cell in said first light emitting region through said eleventh electrical connection terminal (642), said fourth electrical connection terminal conversion means (640) being electrically connected with a light emitting cell in said second light emitting region through said twelfth electrical connection terminal (643);
the controlling the light emitting units in the first light emitting region to be electrically connected with the light emitting driver (920) and cutting off the electrical connection between the light emitting units in the second light emitting region and the light emitting driver (920) comprises:
and controlling the fourth electric connection terminal conversion device (640) to switch the electric connection terminal conducted with the tenth electric connection terminal (641), so that the tenth electric connection terminal (641) is conducted with the eleventh electric connection terminal (642) and the tenth electric connection terminal (641) is disconnected with the twelfth electric connection terminal (643).
19. The method of any of claims 12 to 14, wherein the method is performed by a photosensing driver (910) within the image sensor (440), or by a processor within an electronic device in which the image sensor (440) is disposed.
20. The method according to any one of claims 12 to 14, further comprising:
generating a 3D image from the signals detected by the first type of photosites (511).
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