CN115460326B - Display panel, scanning method, electronic device, and storage medium - Google Patents
Display panel, scanning method, electronic device, and storage medium Download PDFInfo
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- CN115460326B CN115460326B CN202110638797.8A CN202110638797A CN115460326B CN 115460326 B CN115460326 B CN 115460326B CN 202110638797 A CN202110638797 A CN 202110638797A CN 115460326 B CN115460326 B CN 115460326B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 56
- 230000008054 signal transmission Effects 0.000 claims description 23
- 239000004973 liquid crystal related substance Substances 0.000 claims description 18
- 238000004590 computer program Methods 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims 1
- 238000003491 array Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/0035—User-machine interface; Control console
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00519—Constructional details not otherwise provided for, e.g. housings, covers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
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- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses a display panel, a scanning method, an electronic device and a computer readable storage medium. The display panel comprises a color film substrate, a color film layer, a shielding layer and a plurality of photosensitive elements, wherein the color film layer and the shielding layer are formed on the color film substrate, the color film layer is staggered with the shielding layer along the vertical direction of the color film substrate, the plurality of photosensitive element arrays are arranged in the shielding layer, and the plurality of photosensitive elements are correspondingly arranged with the color film layers in a preset number of rows. In the scanning mode, light is emitted from the color film layer to the document to be scanned, and is reflected to the photosensitive element by the document to be scanned to realize document scanning. Thus, when the document to be scanned is placed on the surface of the display panel, the display panel can realize the scanning of the document to be scanned.
Description
Technical Field
The present application relates to the field of display technology, and in particular, to a display panel, a scanning method, an electronic device, and a non-volatile computer-readable storage medium.
Background
At present, document scanning is realized based on a printer, however, the printer needs to be independently used for scanning and printing equipment, and the operation is complex, the use is inconvenient and the cost is high, so that the document scanning equipment with convenient operation and use is urgent.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a display panel, a scanning method, an electronic device, and a non-volatile computer-readable storage medium.
The display panel of the embodiment of the application comprises:
A color film substrate;
the color film layer is formed on the color film substrate,
The shielding layer is formed on the color film substrate and is staggered with the color film layer;
The plurality of photosensitive elements are arranged in the shielding layer in an array manner, and the plurality of photosensitive elements are arranged corresponding to the color film layers in a preset number of rows;
In the scanning mode, light rays are emitted from the color film layer to a document to be scanned, and are reflected to the photosensitive element by the document to be scanned so as to realize document scanning.
In some embodiments, the display panel further includes a plurality of signal transmission lines formed in the color film substrate and disposed corresponding to the shielding layer, and each of the signal transmission lines is connected to the photosensitive element along a column direction.
In some embodiments, the display panel includes a non-display region including a bonding region and a flexible circuit board, and the display panel includes a switching element and an analog-to-digital converter formed on the flexible circuit board, the switching element connecting the analog-to-digital converter and the signal transmission line extending to the bonding region.
In some embodiments, the display panel further comprises a register, the register being connected to the analog-to-digital converter.
In certain embodiments, the photosensitive element has a width of 8 microns or less.
In some embodiments, the color film layer includes a red filter, a green filter, and a blue filter, where the red filter, the green filter, and the blue filter are sequentially disposed at intervals.
In some embodiments, the display panel further includes an array substrate and a liquid crystal layer adjacent to each other, where the array substrate and the liquid crystal layer are located on a side of the shielding layer away from the color film substrate.
The scanning method of the embodiment of the application comprises the following steps:
Under the condition that the file to be scanned is detected, the grid control signals are transmitted by the control grid signal lines line by line according to frames so as to drive the sub-pixels to emit light line by line;
receiving the gate control signal and the photoelectric signal of the photosensitive element; and
And generating a scanning image of the document to be scanned according to the grid control signal and the photoelectric signal.
In certain embodiments, the scanning method further comprises:
Transmitting a first scanning signal to a switching element to start the switching element to transmit the photoelectric signal under the condition that the file to be scanned is detected;
and transmitting a second scanning signal to the switching element to enable the photoelectric signal to be grounded under the condition that the file to be scanned is not detected.
An electronic device according to an embodiment of the present application includes a processor, a memory, and a program, wherein the program is stored in the memory and executed by the processor, and the program includes instructions for executing the scanning method according to any one of the above.
A non-transitory computer readable storage medium of an embodiment of the present application stores a computer program that, when executed by a processor, causes the processor to execute the scanning method of any one of the above.
In the display panel, the electronic device, the scanning direction and the nonvolatile computer readable storage medium of the embodiment of the application, the plurality of photosensitive elements are arranged in the shielding layer, when the document to be scanned is placed on the surface of the display panel, light rays are emitted from the color film layer to the document to be scanned for reflection, and the reflected light rays reach the photosensitive elements, so that a scanning image is obtained by photoelectric conversion according to the intensity of light signals received by the photosensitive elements. The file scanning function of the display panel is realized, and file scanning can be performed without a camera or printing scanning equipment, so that the accuracy of scanned images is ensured, and meanwhile, the operation is simple and convenient, and the cost is saved.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present application.
Fig. 2 is a schematic plan view of a display panel according to an embodiment of the present application.
Fig. 3 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present application.
Fig. 4 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present application.
Fig. 5 is a signal diagram of the display panel in the scan mode according to the embodiment of the application.
FIG. 6 is a schematic view of a scene of generating a scanned image in accordance with some embodiments of the application.
Fig. 7 is a schematic flow chart of a scanning method according to an embodiment of the present application.
Fig. 8 is a schematic block diagram of an electronic device according to an embodiment of the present application.
Fig. 9 is a schematic flow chart of a scanning method according to an embodiment of the present application.
Fig. 10 is a schematic block diagram of an electronic device according to an embodiment of the present application.
Fig. 11 is a schematic diagram showing connection between a processor and a storage medium according to an embodiment of the present application.
Description of main reference numerals:
The display panel 10, the non-display area 11, the binding area 111, the flexible circuit board 112, the display area 12, the shielding area 121 and the pixel light-emitting area 122; a signal transmission line 13, a gate signal line 14, a switching element 15, and an analog-to-digital converter 16;
A color film substrate 21, a color filter substrate 211, a second polarizing plate 212, a color film layer 22, an anode layer 223, an electroluminescent layer 224, and a cathode layer 225;
a shielding layer 23, a photosensitive element 24, an array substrate 25, a liquid crystal layer 26 and a first polarizer 27;
Electronic device 100, processor 20, memory 30, program 30, computer-readable storage medium 40, computer program 42.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
At present, the document scanning is mainly realized based on a scanning printing device such as a printer or a camera of a mobile phone, however, the document scanning is carried out through the scanning printing device, the scanning printing device is required to be purchased independently, the cost is high, the operation is inconvenient, and the image obtained by the document scanning through the camera of the mobile phone is easy to be distorted, so that the obtained image has low accuracy.
In view of this, referring to fig. 1, the present application provides a display panel 10, the display panel 10 includes a color film substrate 21, a color film layer 22, a shielding layer 23 and a plurality of photosensitive elements 24, the color film layer 22 and the shielding layer 23 are formed on the color film substrate 21, the shielding layer 23 is arranged to be staggered from the color film layer 22 along a direction perpendicular to the color film substrate 21, and the plurality of photosensitive elements 24 are arranged in the shielding layer 23 in an array. The plurality of photosensitive elements 24 are disposed corresponding to the predetermined number of rows of color film layers 22.
In the scanning mode, light is emitted from the color film layer 22 to the document to be scanned, and is reflected by the document to be scanned to the photosensitive element 24 to realize document scanning.
In the display panel 10 of the present application, by disposing the plurality of photosensitive elements 24 in the shielding layer 23, when the document to be scanned is placed on the surface of the display panel 10, light is emitted from the color film layer 22 to the document to be scanned to be reflected, and the reflected light reaches the photosensitive elements 24, so that a scanned image is obtained by performing photoelectric conversion according to the intensity of the light signal received by the photosensitive elements 24. The document scanning function of the display panel 10 is realized, and document scanning can be performed without a camera or a printing scanning device, so that the accuracy of scanned images is ensured, and meanwhile, the operation is simple and convenient, and the cost is saved.
The display panel 10 may be an Organic Light-Emitting Diode (OLED) display panel, a Liquid CRYSTAL DISPLAY (LCD) display panel, or the like.
Referring to fig. 2, the display panel 10 is divided into a non-display area 11 and a display area 12 by a light-emitting area and a non-light-emitting area. The display area 12 includes a shielding area 121 and a pixel light emitting area 122, and the shielding area 121 and the pixel light emitting area 122 are alternately arranged. The pixel light emitting region 122 is provided with a plurality of sub light emitting regions 1222 in an array, and the sub light emitting regions 1222 are used for emitting light. The plurality of sub-light emitting regions 1222 are formed with a plurality of light emitting rows and a plurality of columns of light emitting columns.
The display panel 10 includes a plurality of photosensitive elements 24, the plurality of photosensitive elements 24 are arranged in an array in the shielding area 121 and are arranged corresponding to the sub-light-emitting areas 1222 in a preset number of light-emitting rows, and at least one photosensitive element 24 is arranged in each light-emitting row. For example, the sub-light-emitting regions 1222 are formed of N light-emitting rows, N sub-light-emitting regions 1222 are formed in the N light-emitting rows, the photosensitive elements 24 include K photosensitive elements distributed in the N light-emitting rows, K photosensitive elements 24 are provided in each light-emitting row, and K is a positive integer and 1 or more. Each photosensitive element 24 is arranged to receive light emitted from adjacent sub-light emitting areas in the same row and reflected back by the document to be scanned. The number of sub-light emitting areas 1222 of each row is greater than or equal to the number of light sensitive elements 24 in that row. For example, in the display area 12, the array is provided with 7*7 sub-light-emitting areas 1222, that is, the display area 12 includes 7 light-emitting rows and 7 columns of light-emitting columns, and each row includes 7 sub-light-emitting areas 1222, then there are 7 or less photosensitive elements 24 corresponding to 7 or less light-emitting rows in each row.
The width of the photosensitive element 24 is smaller than the width of the shielding region 121 so as to avoid that the photosensitive element 24 emits light beyond the shielding region 121 and the light emitting region 1222 of the interfering light, for example, the width of the shielding region 121 is 10-16 micrometers, and the width of the photosensitive element 24 may be less than or equal to 8 micrometers.
Further, the display panel 10 includes a plurality of signal transmission lines 13 and gate signal lines 14, the signal transmission lines 13 are located in the shielding region 121, and each signal transmission line 13 is connected to a column of photosensitive elements 24 of the shielding region 121 along a column direction (vertical direction). The signal transmission line 13 is used for transmitting the photoelectric signal generated by the photosensor 24. Each of the gate signal lines 14 corresponds to one row of light emitting rows, the gate signal lines 14 are connected to the sub light emitting regions 1222 of the corresponding row in a row direction (lateral direction), and the gate signal lines 14 are used to supply gate control signals to the sub light emitting regions 1222 to control the sub light emitting regions 1222 to emit light.
The non-display area 11 includes a binding area 111 and a flexible circuit board (Flexible Printed Circuit, FPC) 112, and the display panel 10 further includes a switching element 15, an analog-to-digital converter 16 (analog to digital converter, ADC), and a register, which are sequentially connected. The analog-to-digital converter 16, i.e., an a/D converter, or ADC for short, refers to an electronic component that converts an analog signal into a digital signal. The switching element 15 and the analog-to-digital converter 16 are formed on the flexible circuit board 112, and the signal transmission line 13 further extends from the shielding region 121 to the binding region 111, and is connected to the switching element 15 for transmitting the photoelectric signal generated by the photosensitive element 24 to the switching element 15. It should be noted that the number of the switching elements 15 and the analog-to-digital converters 16 may be 1 or plural, that is, the number of the switching elements 15 and the analog-to-digital converters 16 may be set according to the actual product signal. For example, in some embodiments, the switching element 15 and the analog-to-digital converter 16 are one, and the switching element 15 may include a plurality of interfaces connected to the signal transmission lines 13, and each interface is connected to one signal transmission line 13. For another example, referring to fig. 1, in the present embodiment, the switching elements 15 and the analog-to-digital converter 16 may be plural, and each switching element 15 is connected to one signal transmission line 13 and one analog-to-digital converter 16.
The switching element 15 is configured to control connection of the switching element 15 to the analog-to-digital converter 16 when receiving the control signal, and the analog-to-digital converter 16 is configured to convert the photoelectric signal transmitted by the switching element 15 into a digital signal and transmit the digital signal to the register for storage. In addition, the register is also used to receive and store the gate control signal transmitted by the gate signal line 14. It should be noted that, the register may be directly connected to the gate signal line 14 to obtain the gate control signal, or may be directly obtained from a place where the gate control signal is generated, for example, the display panel 10 has a control chip, the control chip may generate the gate control signal and transmit the gate control signal to the sub-light emitting area 1222 through the gate control line to drive the sub-light emitting area 1222 to emit light, and the register may be connected to the control chip to obtain the gate control signal generated by the control chip.
Referring to fig. 1, the display panel 10 includes a color film substrate 21, a color film layer 22, a shielding layer 23, a photosensitive element 24, and an array substrate 25. The color film layer 22 and the shielding layer 23 are formed on the color film substrate 21, and the array substrate 25 is disposed on one side of the shielding layer 23 away from the color film substrate 21.
Specifically, the color film layer 22 includes a plurality of color film layers 22 disposed on the color film substrate 21 in an array along a direction parallel to the color film substrate 21. And, the color film layer 22 corresponds to the sub light emitting region 1222 in a vertical direction along the color film substrate 21.
The shielding layer 23 may be a Black Matrix, and the shielding layer 23 is staggered with the color film layer 22 along the vertical direction of the color film substrate 21. The shielding layer 23 is opaque, the color film layer 22 is transparent, and the light emitted from the display panel 10 cannot pass through the shielding layer 23 and can only be emitted out of the display panel 10 from the color film layer 22.
The photosensitive element 24 is formed on a side of the surface of the shielding layer 23 near the array substrate 25. The signal transmission line 13 is formed in a shielding region 121 in the color film substrate 21 and is connected with the photosensitive element 24, and the switching element 15 and the analog-to-digital converter 16 are formed in a binding region 111 of the color film substrate 21. The gate signal line 14 is formed on the array substrate 25.
Referring to fig. 3, in some embodiments, the display panel 10 is a liquid crystal display panel, and the display panel 10 further includes a backlight (not shown), a first polarizer 27, and a liquid crystal layer 25. The liquid crystal layer 26 is formed in the array substrate 25 and the shielding layer 23, and the first polarizer 26 is located on a side of the array substrate 25 away from the liquid crystal layer 26. The color film substrate 21 includes a color filter substrate (CF Glass) 211 and a second polarizer 252, and the second polarizer 252 is located on a side of the color filter substrate 211 away from the shielding layer 23. The array substrate 25, the liquid crystal layer 26, the color film layer 22, and the color filter substrate 211 may collectively form a plurality of sub-light emitting regions 1222.
The color film layer 22 includes a red filter, a green filter and a blue filter, which are sequentially disposed on the surface of the liquid crystal layer 26. The TFT substrate 21, the liquid crystal layer 26, a red filter and the color filter substrate 211 together form a red sub-pixel, the TFT substrate 21, the liquid crystal layer 26, a green filter and the color filter substrate 211 together form a green sub-pixel, and the TFT substrate 21, the liquid crystal layer 26, a blue filter and the color filter substrate 211 together form a blue sub-pixel.
The signal transmission line 13 is formed on a side of the color filter substrate 211 near the shielding layer 23 and is connected to the photosensor 24. The switching element 15, the analog-to-digital converter 16, and the register are formed on the same layer of the flexible circuit board 112 as the color filter substrate 211. The gate signal lines 14 are formed on the array substrate 25 and can be used for controlling the liquid crystal layer 26 so that the light of the backlight source penetrates through the liquid crystal layer 26 and penetrates through the color film layer 22 to be emitted out of the display panel 10.
Referring to fig. 4, in some embodiments, the display panel 10 is an OLED display panel. It can be appreciated that, in the process of manufacturing the OLED display panel 10, a first electrode layer is formed on a substrate, a plurality of anodes distributed in an array are formed after patterning the first electrode layer, then an Electroluminescent (EL) layer is formed on the anodes, and a second electrode layer is formed on the EL layer as a common cathode layer, and then a cover plate is attached to the second electrode layer or an encapsulation layer is attached to the second electrode layer to form the OLED panel. That is, in the case where the display panel 10 of the embodiment of the present application is an OLED display panel, the color film layer 22 includes the anode layer 223, the electroluminescent layer 224, and the cathode layer 225, and the anode layer 223 is formed on the array substrate 25. The shielding layer 23 is located on a side of the surface of the cathode layer 225 away from the array substrate 25. The gate signal line 14 is formed in the array substrate 25 and connected to the anode layer 223 of the color film layer 22.
The display panel 10 includes a scanning mode and a non-scanning mode. The following description will be given of the display panel 10 as a liquid crystal display panel. In the non-scanning mode, the display panel 10 is used for displaying an image, and in the scanning mode, the display panel 10 is used for scanning a document to be scanned placed on the surface of the display panel 10 and generating a scanned image of the document to be scanned.
When a document to be scanned is placed on the surface of the display panel 10, the display panel 10 may turn on a scan mode in which the gate signal lines 14 output gate control signals line by line in a frame, thereby driving the sub light emitting regions 1222 line by line to emit light so that the sub light emitting regions 1222 may emit light to the outside of the display panel 10.
Specifically, the switching element 15 is also used to receive an enable signal. In the non-scanning mode, the display panel 10 may be used as a normal display screen, the gate control signal of the gate signal line 14 is generated by a display signal, the display signal is used for controlling the display panel 10 to normally display images, the enable signal received by the switching element 15 is at a low level, the photosensitive element 24 may receive light outside the display panel 10 to generate an electrical signal, and the electrical signal passes through the switching element 15 and is grounded GND without interfering with the display signal of the display panel 10.
Referring to fig. 5, in the scan mode, the enable signal received by the switching element 15 is at a high level, the signal transmission line 13 is connected to the analog-to-digital converter 16, and the signal transmission line 13 transmits the photoelectric signal generated by the photosensitive element 24 to the analog-to-digital converter 16, and it is understood that, since the signal transmission line 13 includes a plurality of signal transmission lines, each signal transmission line 13 is connected to a column of the sub-light-emitting areas 1222, the photoelectric signal transmitted by the signal transmission line 13 determines the column position (x coordinate) of the corresponding photosensitive element 24, and the digital-to-analog converter 16 can convert the photoelectric signal transmitted by the gate signal line 14 into a digital signal and transmit the digital signal to the register for storing, thereby completing the transmission and storing of the photoelectric signal of the photosensitive element 24, wherein the digital signal includes the x coordinate position signal and the brightness intensity signal of the photosensitive element 24. Meanwhile, the display panel 10 outputs an intrinsic picture, and the gate control signal is outputted by the gate signal line 14 in a frame-by-frame manner so that the sub-light-emitting area 1222 emits white light with a brightness level of L255, wherein the first frame controls the sub-light-emitting area 1222 corresponding to the first row of photosensitive elements 24 to emit light, the second frame controls the sub-light-emitting area 1222 to emit light in the second row, and the … … N frame controls the N sub-light-emitting area 1222 to emit light as a light source for scanning the document. Note that N is the vertical resolution of the display panel 10. And, the light emitting time of each row of the sub light emitting regions 1222 is 1 frame.
The light emitted from the sub-light-emitting areas 1222 is reflected by the scanned document and received by the photosensitive elements 24 of the corresponding areas and generates a photoelectric signal. It should be noted that each photosensor 24 receives light emitted from two adjacent sub-light-emitting areas 1222 in the same row and reflected by the scanned document. It will be appreciated that the brightness of the reflected light collected by the photosensitive elements 24 in the corresponding areas of the different graphic characters of the document to be scanned is different, and the magnitude of the generated photoelectric signals is different.
Referring to fig. 6, while the gate control signals are outputted from the gate signal lines 14 to the sub-light emitting areas 1222 frame by frame such that the sub-light emitting areas 1222 emit white light with a pixel brightness level of L255, the register records the gate control signals of each frame at the time of scanning, and it is understood that since the gate control signals of each frame are for controlling the sub-light emitting areas 1222 of the corresponding row to emit light. And each frame of gate control signals controls a row of sub-light-emitting regions 1222 to emit light, also enabling the corresponding row of photosensors 24 to receive reflected light. Therefore, during the scanning process, the optical signal received by the nth row photosensitive element 24 of the nth frame is converted into an electrical signal for storage in the register. The row position (y-coordinate) of the photosensitive element can be determined by the register directly counting N rows when the nth frame occurs. Thus, a scanned image of the scanned document may be generated in conjunction with the y-coordinate position, x-coordinate position signal, and brightness intensity signal of each photosensor 24.
Further, the display panel 10 may perform N scans, and in each scanning process, receive the gate control signal and the photoelectric signal of the photosensitive element 24, so as to generate a scanned image according to the gate control signal and the photoelectric signal, so that N images can be obtained after N scans, and then the N images are combined to obtain the target scanned image. Therefore, even if the volume of the file to be scanned is large, N scanning images can be obtained through N times of scanning, and the target scanning images are obtained through synthesis, so that the completeness of the target scanning images is ensured, and the scanned target scanning images can accurately represent the object to be scanned.
Referring to fig. 7, the present application further provides a scanning method of the display panel 10, for the display panel 10, the scanning method includes:
01, transmitting grid control signals line by line according to frames under the condition that a file to be scanned is detected so as to drive the display panel to emit light line by line;
02, receiving a grid control signal and a photoelectric signal of the photosensitive element; and
03, Generating a scanning image of the document to be scanned according to the grid control signal and the photoelectric signal.
Referring to fig. 8, the present application further provides an electronic device 100, which includes a processor 20 and a display panel 10, wherein the processor 20 may be configured to implement the above-mentioned scanning method, or in other words, the processor 20 may be configured to transmit a gate control signal line by line in a frame to drive the display panel to emit light line by line when detecting a document to be scanned. The processor 20 may be configured to receive the gate control signal and the photo signal of the photosensitive element, and the processor 20 may be further configured to generate a scanned image of the document to be scanned based on the gate control signal and the photo signal.
The electronic device 100 may be an electronic device such as a television, a computer, a mobile phone, a tablet or electronic watch, a VR device, an AR device, or an intelligent wearable device. For example, in some examples, where the electronic device 100 is a cell phone, the display panel 10 refers to a cell phone screen.
Specifically, the document to be scanned may be detected by a sensor of the electronic device 100, or may be detected according to an input instruction of a user, for example, the electronic device 100 may set a scanning function, and after the scanning function is started, the processor 20 may confirm that the document to be scanned is detected. It will be appreciated that the particular manner of how the document to be scanned is detected is not limited.
After the processor 20 detects the document to be scanned, a gate control signal may be generated and transmitted by the gate signal line 14 frame by frame, so that the light emitted from the sub-light-emitting area 1222 may be emitted to the surface of the document to be scanned and reflected by the document to be scanned to the photosensitive element, and the photosensitive element generates a photoelectric signal according to the reflected light. Meanwhile, the processor 20 receives the gate control signal and the photoelectric signal of the photosensitive element 24, for example, the processor 20 may be connected to a register of the display panel 10, and receives the gate control signal and the digital signal generated by the photoelectric signal of the photosensitive element 24 from the register. The number of frames of the gate control signal is the same as the number of rows in which the photosensitive elements 24 are located, and further, the row direction position (y-coordinate) of the photosensitive elements 24 in the corresponding row is determined according to the number of frames of the gate control signal, and the vertical position (x-coordinate) of the photosensitive elements 24 and the brightness intensity signal of the photosensitive elements 24 are determined according to the digital signal. A scanned image of the document to be scanned is then generated based on the x-and y-coordinates of each photosensor 24 and the brightness intensity signal.
In the present application, since the emission of the sub-pixel 24 is white light with a pixel brightness level of 255, the generated scanned image is a black-and-white image.
Thus, the electronic device 100 can realize the file scanning function through the display panel 10, and can scan files without using a camera or a printing scanning device, thereby ensuring the accuracy of scanned images and saving cost.
Referring to fig. 9, in some embodiments, the scanning method further includes:
04, under the condition that a file to be scanned is detected, transmitting a first scanning signal to the switching element to start the switching element to transmit a photoelectric signal;
And 05, transmitting a second scanning signal to the switching element to enable the photoelectric signal to be grounded under the condition that the file to be scanned is not detected.
In some embodiments, the processor 20 may be configured to transmit a first scanning signal to the switching element to turn on the switching element to transmit a photoelectric signal in the event that a document to be scanned is detected. The processor 20 may be further configured to transmit a second scanning signal to the switching element to ground the optoelectronic signal in case no document to be scanned is detected.
It should be noted that, the first scan signal is a high level signal of the enable signal; the second scan signal is a low level signal of the enable signal.
In this way, in the case that the document to be scanned is not detected, the photosensitive element 24 may receive the light outside the display panel 10 to generate an electrical signal, and the electrical signal may not interfere with the display signal of the display panel 10 when passing through the switch element 15 and the ground GND.
Referring to fig. 10, the present application further provides an electronic device 100, which is characterized by comprising a processor 20, a memory 30, and a program 32, wherein the program 32 is stored in the memory 30 and executed by the processor 20, and the program 32 includes instructions for executing the scanning method of any one of the above.
Referring to fig. 11, the present application also provides a non-volatile computer readable storage medium 40, where the non-volatile computer readable storage medium 40 stores a computer program 42, which when executed by the processor 20, causes the processor 20 to execute the scanning method of any one of the above.
In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A display panel, comprising:
A color film substrate;
the color film layer is formed on the color film substrate,
The shielding layer is formed on the color film substrate and is staggered with the color film layer;
The plurality of photosensitive elements are arranged in the shielding layer in an array manner, and the plurality of photosensitive elements are arranged corresponding to the color film layers in a preset number of rows;
In a scanning mode, light rays are emitted from the color film layer to a document to be scanned and reflected to the photosensitive element by the document to be scanned so as to realize document scanning;
the display panel further comprises a display area, the display area comprises a shielding area and a pixel light-emitting area, the pixel light-emitting area array is provided with a sub light-emitting area used for emitting light, the sub light-emitting area forms a plurality of light-emitting rows and a plurality of light-emitting columns, the photosensitive element array is arranged in the shielding area and corresponds to the sub light-emitting areas in the preset number of light-emitting rows, and each photosensitive element is used for receiving the light which is located in the same row, is adjacent to the sub light-emitting area, emits and is reflected by the scanning file.
2. The display panel of claim 1, wherein the display panel further comprises:
and the signal transmission lines are formed in the color film substrate and are arranged corresponding to the shielding layers, and each signal transmission line is connected with the photosensitive element along the column direction.
3. The display panel of claim 2, wherein the display panel includes a non-display region including a bonding region and a flexible circuit board, the display panel including a switching element and an analog-to-digital converter formed on the flexible circuit board, the switching element connecting the analog-to-digital converter and the signal transmission line extending to the bonding region.
4. The display panel of claim 3, further comprising a register coupled to the analog-to-digital converter.
5. The display panel of claim 1, wherein the photosensitive element has a width of 8 microns or less.
6. The display panel of claim 1, wherein the color film layer includes a red filter, a green filter, and a blue filter, the red filter, the green filter, and the blue filter being sequentially spaced apart.
7. The display panel of claim 1, further comprising an array substrate and a liquid crystal layer adjacent to each other, the array substrate and the liquid crystal layer being located on a side of the barrier layer away from the color film substrate.
8. An electronic device comprising a display panel according to any one of claims 1-7.
9. A scanning method for the display panel of any one of claims 1-7, the scanning method comprising:
Under the condition that the file to be scanned is detected, the grid control signals are transmitted by the grid signal lines line by line according to frames so as to drive the display panel to emit light line by line, the grid signal lines correspond to one row of the light emitting lines, the grid signal lines are connected with the sub light emitting areas of the corresponding rows along the row direction, and the grid signal lines are used for providing the grid control signals for the sub light emitting areas so as to control the sub light emitting areas to emit light;
receiving the gate control signal and the photoelectric signal of the photosensitive element; and
And generating a scanning image of the document to be scanned according to the grid control signal and the photoelectric signal.
10. The scanning method of claim 9, wherein the scanning method further comprises:
Transmitting a first scanning signal to a switching element to start the switching element to transmit the photoelectric signal under the condition that the file to be scanned is detected;
and transmitting a second scanning signal to the switching element to enable the photoelectric signal to be grounded under the condition that the file to be scanned is not detected.
11. An electronic device comprising a processor, a memory, and a program, wherein the program is stored in the memory and executed by the processor, the program comprising instructions for performing the scanning method according to any one of claims 9-10.
12. A non-transitory computer readable storage medium, characterized in that the non-transitory computer readable storage medium stores a computer program, which when executed by a processor, causes the processor to perform the scanning method of any of claims 9-10.
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| CN115460326A (en) | 2022-12-09 |
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