CN108922478B - Backlight brightness adjusting method and system and display device - Google Patents
Backlight brightness adjusting method and system and display device Download PDFInfo
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Abstract
The application is applicable to the technical field of terminals, and provides a backlight brightness adjusting method, a system and display equipment, wherein the method comprises the following steps: acquiring the photosensitive values of all photosensitive areas of the light sensor; obtaining the current ambient brightness according to the photosensitive values and the weights of all the photosensitive areas; the current environment brightness is equal to the sum of the photosensitive brightness of all the photosensitive areas, and the photosensitive brightness of the photosensitive areas is equal to the product of the photosensitive value and the weight of the photosensitive areas; and adjusting the backlight brightness of the display screen according to the current ambient brightness. According to the embodiment of the application, the light sensor is divided into different photosensitive areas, the weight corresponding to the photosensitive value of each photosensitive area is set, then the current ambient brightness is obtained according to the photosensitive values and the weights of all the photosensitive areas, the backlight brightness of the display screen is adjusted according to the ambient brightness, the accuracy of the obtained ambient brightness can be effectively improved, and the backlight brightness of the display screen is accurately adjusted.
Description
Technical Field
The application belongs to the technical field of terminals, and particularly relates to a backlight brightness adjusting method and system and a display device.
Background
The existing display device usually detects the ambient brightness through a light sensor provided by the display device, and adjusts the backlight brightness of the display screen according to the ambient brightness adaptability, so as to improve the display effect of the display screen and protect the eyes of a user.
However, since the light receiving elements in different regions of the light sensor receive different amounts of light, the ambient brightness detected by the light sensor is not accurate, and thus the display device cannot accurately adjust the backlight brightness of the display screen according to the ambient brightness.
Disclosure of Invention
In view of this, embodiments of the present application provide a backlight brightness adjusting method, a backlight brightness adjusting system, and a display device, so as to solve the problem in the prior art that the amounts of light received by photosensitive elements in different areas of a light sensor are not completely the same, which causes the ambient brightness detected by the light sensor to be inaccurate, and thus the display device cannot accurately adjust the backlight brightness of a display screen according to the ambient brightness.
A first aspect of an embodiment of the present application provides a backlight brightness adjusting method, including:
acquiring the photosensitive values of all photosensitive areas of the light sensor;
obtaining the current ambient brightness according to the photosensitive values and the weights of all the photosensitive areas; the current environment brightness is equal to the sum of the photosensitive brightness of all the photosensitive areas, and the photosensitive brightness of the photosensitive areas is equal to the product of the photosensitive value and the weight of the photosensitive areas;
and adjusting the backlight brightness of the display screen according to the current ambient brightness.
A second aspect of an embodiment of the present application provides a backlight brightness adjusting system, including:
the photosensitive value acquisition module is used for acquiring photosensitive values of all photosensitive areas of the light sensor;
the first ambient brightness acquisition module is used for acquiring the current ambient brightness according to the photosensitive values and the weights of all the photosensitive areas; the current environment brightness is equal to the sum of the photosensitive brightness of all the photosensitive areas, and the photosensitive brightness of the photosensitive areas is equal to the product of the photosensitive value and the weight of the photosensitive areas;
and the adjusting module is used for adjusting the backlight brightness of the display screen according to the current environment brightness.
A third aspect of embodiments of the present application provides a display device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the above method when executing the computer program.
A fourth aspect of embodiments of the present application provides a computer-readable storage medium, which stores a computer program that, when executed by a processor, implements the steps of the above-described method.
According to the embodiment of the application, the light sensor is divided into different photosensitive areas, the weight corresponding to the photosensitive value of each photosensitive area is set, then the current ambient brightness is obtained according to the photosensitive values and the weights of all the photosensitive areas, the backlight brightness of the display screen is adjusted according to the ambient brightness, the accuracy of the obtained ambient brightness can be effectively improved, and the backlight brightness of the display screen is accurately adjusted.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 and 2 are schematic flow charts of a backlight brightness adjusting method according to an embodiment of the present application;
fig. 3 and 4 are schematic structural diagrams of a light sensor provided in an embodiment of the present application;
fig. 5 is a flowchart illustrating a backlight brightness adjusting method according to a second embodiment of the present application;
fig. 6 is a schematic structural diagram of a backlight brightness adjusting system according to a third embodiment of the present application;
fig. 7 is a schematic diagram of a display device provided in the fourth embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.
Example one
As shown in fig. 1, the present embodiment provides a backlight brightness adjusting method, which can be applied to any display device having a display screen and a light sensor, such as a mobile phone, a tablet computer, a notebook computer, a smart band, a personal digital assistant, or a display with a light sensor. The backlight brightness adjusting method may be specifically executed by a processor of the display device, or may be executed by any device with a control function, such as a PC (personal computer) client or a server, which is communicatively connected to the display device.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. When the display device is a mobile phone, the processor may be specifically a baseband processor.
As shown in fig. 1, the backlight brightness adjusting method provided by this embodiment includes:
step S101, obtaining the photosensitive values of all photosensitive areas of the light sensor.
In a specific application, the light sensor includes a photosensitive element array composed of a plurality of photosensitive elements, and due to different setting positions of different photosensitive elements, the amount of light received by the photosensitive elements located in different photosensitive areas on the photosensitive element array is different, so that the photosensitive values detected by different photosensitive areas are different.
As shown in fig. 2, in the present embodiment, step S101 includes:
step S201, dividing the light ray sensor into at least two photosensitive areas from the center to the edge in sequence; the photosensitive area comprises a positive integer of photosensitive elements, and the radial width of the photosensitive area is equal to the width of the positive integer of photosensitive elements;
step S202, setting the weight of each photosensitive area; the weight of the photosensitive area in the center is greater than that of the photosensitive area at the edge, and the weights of the adjacent photosensitive areas are different.
In a specific application, since the light sensor is usually a regular-shaped photosensitive element array composed of a plurality of photosensitive elements, and the quantity of light received by the photosensitive elements which are equidistant from the center of the light sensor is usually equal, the light sensor can be sequentially divided into at least two regular-shaped photosensitive areas from the center to the edge. According to different shapes of the photosensitive element array, the light sensor can be adaptively divided into at least two photosensitive areas with corresponding shapes, and the width of each photosensitive area can be set according to actual needs.
Fig. 3 exemplarily shows a light ray sensor divided into 1 square photosensitive region and 2 square ring-shaped photosensitive regions.
Fig. 4 exemplarily shows a light ray sensor divided into 1 circular photosensitive region and 1 circular photosensitive region.
In a specific application, the specific number of the photosensitive regions can be set according to actual needs. In order to calculate the photosensitive value of each photosensitive area, it is necessary to ensure that the number of photosensitive elements included in each photosensitive area is an integer, and the radial width of each photosensitive area is equal to the width of a positive integer of the photosensitive elements.
In a specific application, the amount of light received by the photosensitive element located at the center of the light sensor is generally greater than the amount of light received by the photosensitive element located at the edge, and the detected light sensing value is more accurate, so that the weight of the photosensitive area located at the center may be set to be greater than that of the photosensitive area located at the edge, or the width of the photosensitive area located at the center may be set to be greater than that of the photosensitive area located at the edge, and the sum of the weights of all the photosensitive areas should be equal to 1.
In one embodiment, the weight of the photosensitive area of the light ray sensor decreases from the center to the edge.
In one embodiment, the radial widths of all the photosensitive areas are the same or the widths of the photosensitive areas of the light sensor decrease from the center to the edge in sequence.
Fig. 3 exemplarily shows that each photosensitive region of the light sensor has the same width, wherein 1 square photosensitive region has a weight of 0.5, and 2 square ring photosensitive regions have weights of 0.3 and 0.2, respectively.
Fig. 4 exemplarily shows that the widths of each photosensitive region of the light sensor are not equal, wherein 1 circular photosensitive region has a weight of 0.6, and the other 1 circular photosensitive region has a weight of 0.4.
Step S102, obtaining the current environment brightness according to the photosensitive values and the weights of all the photosensitive areas; the current environment brightness is equal to the sum of the photosensitive brightness of all the photosensitive areas, and the photosensitive brightness of the photosensitive areas is equal to the product of the photosensitive value and the weight of the photosensitive areas.
In a specific application, the light sensing values of n light sensing areas of the light sensor are set to be A1, A2, … …, An-1 and An in sequence, and the weight of each light sensing area is set to be B1, B2, … …, Bn-1 and Bn in sequence; wherein n is an integer greater than 1; the current ambient brightness is a1 × B1+ a2 × B2+ … … + An-1 × Bn-1+ An × Bn.
And S103, adjusting the backlight brightness of the display screen according to the current environment brightness.
In a specific application, the backlight brightness of the display screen is usually positively correlated with the ambient brightness, that is, the ambient brightness is larger and the backlight brightness is larger, and a user may also customize the relationship between the ambient brightness and the backlight brightness according to actual needs, for example, the ambient brightness and the backlight brightness may be set as negative correlation.
According to the embodiment of the application, the light sensor is divided into different photosensitive areas, the weight corresponding to the photosensitive value of each photosensitive area is set, then the current ambient brightness is obtained according to the photosensitive values and the weights of all the photosensitive areas, the backlight brightness of the display screen is adjusted according to the ambient brightness, the accuracy of the obtained ambient brightness can be effectively improved, and the backlight brightness of the display screen is accurately adjusted.
Example two
As shown in fig. 5, in the present embodiment, before step S201 in the first embodiment, the method includes:
step S301, obtaining initial environment brightness;
step S302, determining the number of area divisions and the weight of each photosensitive area according to the initial environment brightness; wherein the number of region divisions is inversely related to the initial ambient brightness;
correspondingly, step S201 includes:
and sequentially dividing the light ray sensor into the region division number of photosensitive regions from the center to the edge.
In a specific application, the number of the area divisions of the light sensor may be set by a user, or may be determined according to the initial ambient brightness, and if the area division and the weight setting of the light sensor have never been performed before (i.e., the photosensitive area of the light sensor is divided for the first time in step S201), the sum of the current photosensitive values of all the photosensitive elements of the light sensor is taken as the initial ambient brightness; if the light sensor has been previously divided into regions and set weights (i.e., the light-sensitive regions of the light sensor are not divided for the first time in step S201), current light-sensitive values of all the light-sensitive regions of the light sensor are obtained, and the current ambient brightness is calculated as the initial ambient brightness according to the divided light-sensitive regions and the set weights at the last time (i.e., at the time before step S201).
In a specific application, by acquiring the initial ambient brightness, the current ambient brightness can be predicted before dividing the photosensitive area of the light sensor and setting the weight. Generally, in the case of high ambient brightness, the light receiving elements in the respective regions of the light sensor receive substantially the same amount of light, and the light sensor has high accuracy in detecting the ambient brightness, so that the regions of the light sensor may not be divided or the number of divided regions may be set to a small value, and the weights of different light sensing regions may be the same or the weight difference of different light sensing regions may be small. Under the condition of low ambient brightness, the difference between the light receiving amounts of the light sources at the center and the edge of the light sensor is large, and the light receiving amount is smaller as the light sources are closer to the edge, so in order to improve the precision, the light sensing regions should be divided as much as possible, the weights of different light sensing regions should be set to different values, and it should be ensured that the weight of the light sensing region at the center is greater than the weight of the light sensing region at the edge, and further, the weights of the light sensing regions from the center to the edge of the light sensor can be sequentially decreased.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
EXAMPLE III
As shown in fig. 6, the present embodiment provides a backlight brightness adjusting system 100 for performing the method steps in fig. 1, which may be a software program system in a display device, the system comprising:
a photosensitive value obtaining module 101, configured to obtain photosensitive values of all photosensitive areas of the light sensor;
a first ambient brightness obtaining module 102, configured to obtain current ambient brightness according to the photosensitive values and weights of all the photosensitive regions; the current environment brightness is equal to the sum of the photosensitive brightness of all the photosensitive areas, and the photosensitive brightness of the photosensitive areas is equal to the product of the photosensitive value and the weight of the photosensitive areas;
and the adjusting module 103 is configured to adjust the backlight brightness of the display screen according to the current ambient brightness.
In one embodiment, the backlight brightness adjustment system further comprises structure for performing the method steps of fig. 2, further comprising:
the region dividing module is used for sequentially dividing the light sensor into at least two photosensitive regions from the center to the edge; the photosensitive area comprises a positive integer of photosensitive elements, and the radial width of the photosensitive area is equal to the width of the positive integer of photosensitive elements;
the weight setting module is used for setting the weight of each photosensitive area; the weight of the photosensitive area in the center is greater than that of the photosensitive area at the edge, and the weights of the adjacent photosensitive areas are different.
In one embodiment, the backlight brightness adjustment system further comprises structure for performing the method steps of fig. 5, further comprising:
the first ambient brightness acquisition module is used for acquiring initial ambient brightness;
the determining module is used for determining the number of the area division and the weight of each photosensitive area according to the initial environment brightness; wherein the number of region divisions is inversely related to the initial ambient brightness;
correspondingly, the area dividing module is specifically configured to divide the light sensor into the area dividing number of photosensitive areas in sequence from the center to the edge.
According to the embodiment of the application, the light sensor is divided into different photosensitive areas, the weight corresponding to the photosensitive value of each photosensitive area is set, then the current ambient brightness is obtained according to the photosensitive values and the weights of all the photosensitive areas, the backlight brightness of the display screen is adjusted according to the ambient brightness, the accuracy of the obtained ambient brightness can be effectively improved, and the backlight brightness of the display screen is accurately adjusted.
Example four
As shown in fig. 7, the present embodiment provides a display device 200, which includes: a processor 201, a memory 202 and a computer program 203, such as a backlight brightness adjustment program, stored in said memory 202 and executable on said processor 201. The processor 201, when executing the computer program 203, implements the steps in the various embodiments of the backlight brightness adjustment method described above, such as the steps S101 to S103 shown in fig. 1. Alternatively, the processor 201, when executing the computer program 203, implements the functions of the modules in the above-described device embodiments, for example, the functions of the modules 101 to 103 shown in fig. 6.
Illustratively, the computer program 203 may be partitioned into one or more modules that are stored in the memory 202 and executed by the processor 201 to accomplish the present application. The one or more modules may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 203 in the display device 200. For example, the computer program 203 may be divided into a photosensitive value obtaining module, a first ambient brightness obtaining module and an adjusting module, and each module has the following specific functions:
the photosensitive value acquisition module is used for acquiring photosensitive values of all photosensitive areas of the light sensor;
the first ambient brightness acquisition module is used for acquiring the current ambient brightness according to the photosensitive values and the weights of all the photosensitive areas; the current environment brightness is equal to the sum of the photosensitive brightness of all the photosensitive areas, and the photosensitive brightness of the photosensitive areas is equal to the product of the photosensitive value and the weight of the photosensitive areas;
and the adjusting module is used for adjusting the backlight brightness of the display screen according to the current environment brightness.
The display device 200 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The display device may include, but is not limited to, a processor 201, a memory 202. Those skilled in the art will appreciate that fig. 7 is merely an example of the display device 200, and does not constitute a limitation of the display device 200, and may include more or less components than those shown, or combine certain components, or different components, for example, the display device may also include input output devices, network access devices, buses, etc.
The Processor 201 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 202 may be an internal storage unit of the display device 200, such as a hard disk or a memory of the display device 200. The memory 202 may also be an external storage device of the display device 200, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, provided on the display device 200. Further, the memory 202 may also include both an internal storage unit and an external storage device of the display device 200. The memory 202 is used for storing the computer programs and other programs and data required by the display device. The memory 202 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
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.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/display device and method may be implemented in other ways. For example, the above-described apparatus/display device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, 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 addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
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 integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated module, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. . Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, etc. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (8)
1. A backlight brightness adjusting method is characterized by comprising the following steps:
the light sensor is sequentially divided into at least two photosensitive areas from the center to the edge; the photosensitive area comprises a positive integer of photosensitive elements, and the radial width of the photosensitive area is equal to the width of the positive integer of photosensitive elements;
setting a weight of each photosensitive area; the weight of the photosensitive area at the center is greater than that of the photosensitive area at the edge, and the weights of the adjacent photosensitive areas are different;
acquiring photosensitive values of all photosensitive areas of the light sensor;
obtaining the current ambient brightness according to the photosensitive values and the weights of all the photosensitive areas; the current environment brightness is equal to the sum of the photosensitive brightness of all the photosensitive areas, and the photosensitive brightness of the photosensitive areas is equal to the product of the photosensitive value and the weight of the photosensitive areas;
and adjusting the backlight brightness of the display screen according to the current ambient brightness.
2. The backlight brightness adjusting method of claim 1, wherein dividing the light sensor into at least two photosensitive areas in sequence from the center to the edge comprises:
acquiring initial environment brightness;
determining the number of area divisions and the weight of each photosensitive area according to the initial environment brightness; wherein the number of region divisions is inversely related to the initial ambient brightness;
correspondingly, divide into two at least photosensitive regions from the center to the edge with light sensor in proper order, include:
and sequentially dividing the light ray sensor into the region division number of photosensitive regions from the center to the edge.
3. The backlight brightness adjusting method according to claim 1 or 2, wherein the weight of the light sensing area of the light sensor decreases sequentially from the center to the edge.
4. The backlight brightness adjusting method according to claim 1 or 2, wherein the radial widths of all the photosensitive regions are the same or the widths of the photosensitive regions of the light sensor decrease sequentially from the center to the edge.
5. A backlight brightness adjustment system, comprising:
the region dividing module is used for sequentially dividing the light sensor into at least two photosensitive regions from the center to the edge; the photosensitive area comprises a positive integer of photosensitive elements, and the radial width of the photosensitive area is equal to the width of the positive integer of photosensitive elements;
the weight setting module is used for setting the weight of each photosensitive area; the weight of the photosensitive area at the center is greater than that of the photosensitive area at the edge, and the weights of the adjacent photosensitive areas are different;
the photosensitive value acquisition module is used for acquiring photosensitive values of all photosensitive areas of the light sensor;
the first ambient brightness acquisition module is used for acquiring the current ambient brightness according to the photosensitive values and the weights of all the photosensitive areas; the current environment brightness is equal to the sum of the photosensitive brightness of all the photosensitive areas, and the photosensitive brightness of the photosensitive areas is equal to the product of the photosensitive value and the weight of the photosensitive areas;
and the adjusting module is used for adjusting the backlight brightness of the display screen according to the current environment brightness.
6. The backlight brightness adjustment system of claim 5, wherein the system further comprises:
the second ambient brightness acquisition module is used for acquiring initial ambient brightness;
the determining module is used for determining the number of the area division and the weight of each photosensitive area according to the initial environment brightness; wherein the number of region divisions is inversely related to the initial ambient brightness;
correspondingly, the area dividing module is specifically configured to divide the light sensor into the area dividing number of photosensitive areas in sequence from the center to the edge.
7. A display device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 4 when executing the computer program.
8. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
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| CN110784659B (en) * | 2019-10-31 | 2022-01-11 | Oppo广东移动通信有限公司 | Exposure control method and device and storage medium |
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| CN103033262B (en) * | 2012-12-14 | 2015-04-15 | 京东方科技集团股份有限公司 | Light sensor element, display unit and brightness detection method thereof |
| US10019926B2 (en) * | 2015-06-19 | 2018-07-10 | Apple Inc. | Adaptive calibration and adaptive transformation matrices for ambient light sensors |
| CN105094465B (en) * | 2015-08-12 | 2018-02-02 | 小米科技有限责任公司 | Ambient light measurement method and device |
| US9997137B2 (en) * | 2015-09-30 | 2018-06-12 | Apple Inc. | Content-based statistics for ambient light sensing |
| CN106357904B (en) * | 2016-09-18 | 2019-12-24 | 青岛海信移动通信技术股份有限公司 | Method for adjusting luminous intensity of screen and mobile terminal |
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