CN115460326A - 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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- CN115460326A CN115460326A CN202110638797.8A CN202110638797A CN115460326A CN 115460326 A CN115460326 A CN 115460326A CN 202110638797 A CN202110638797 A CN 202110638797A CN 115460326 A CN115460326 A CN 115460326A
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- 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 5
- 230000004888 barrier function Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 11
- 230000006870 function Effects 0.000 description 6
- 238000007639 printing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
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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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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 and the shielding layer are arranged in a staggered mode in the direction perpendicular to the color film substrate, the plurality of photosensitive elements are arranged in the shielding layer in an array mode, and the plurality of photosensitive elements are arranged corresponding to the color film layer in the preset number of rows. In the scanning mode, light is emitted from the color film layer to the document to be scanned and reflected by the document to be scanned to the photosensitive element to scan the document. Therefore, when the file to be scanned is placed on the surface of the display panel, the display panel can scan the file to be scanned.
Description
Technical Field
The present application relates to the field of display technologies, 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, a separate scanning and printing device is required to scan based on the printer, and the operation is complex, the use is inconvenient, and the cost is high, so that a document scanning device which is convenient to operate and use is urgently needed to appear.
Disclosure of Invention
The present application is directed to solving at least one of the problems 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;
a color film layer 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 photosensitive elements are arranged in the shielding layer in an array mode and correspond to the color film layers in the preset number of rows;
in the scanning mode, light rays are emitted from the color film layer to a file to be scanned and reflected to the photosensitive element by the file to be scanned so as to realize file 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 blocking 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 at 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, and the register is connected with the analog-to-digital converter.
In some embodiments, the width of the photosensitive element is 8 microns or less.
In some embodiments, the color film layer includes a red filter, a green filter and a blue filter, and 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, which are adjacent to each other, and the array substrate and the liquid crystal layer are located on a side of the blocking 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, controlling a grid signal line to transmit the grid control signal line by line according to a frame so as to drive the sub-pixels to emit light line by line;
receiving the grid control signal and the photoelectric signal of the photosensitive element; and
and generating a scanning image of the file to be scanned according to the grid control signal and the photoelectric signal.
In some embodiments, the scanning method further comprises:
under the condition that the file to be scanned is detected, transmitting a first scanning signal to a switching element to start the switching element to transmit the photoelectric signal;
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.
The electronic device of the 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 of 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 perform the scanning method described in 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, by arranging the plurality of photosensitive elements in the shielding layer, when a to-be-scanned file is placed on the surface of the display panel, light is emitted from the color film layer to the to-be-scanned file to be reflected, and the reflected light reaches the photosensitive elements, so that photoelectric conversion is performed according to the intensity of a light signal received by the photosensitive elements to obtain a scanned image. The file scanning function of the display panel is realized, and file scanning can be performed no longer through a camera or a printing and scanning device, so that the accuracy of scanned images is ensured, and the operation is simple and convenient, and the cost is saved.
Additional aspects and advantages of the present 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 present application.
Drawings
The above 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 of 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 invention.
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 present application.
FIG. 6 is a schematic view of a scene in which a scanned image is generated according to some embodiments of the present application.
Fig. 7 is a flowchart illustrating a scanning method according to an embodiment of the present application.
Fig. 8 is a block diagram of an electronic device according to an embodiment of the present application.
Fig. 9 is a flowchart illustrating a scanning method according to an embodiment of the present application.
Fig. 10 is a block diagram of an electronic device according to an embodiment of the present application.
Fig. 11 is a schematic diagram of a connection between a processor and a storage medium according to an embodiment of the present application.
Description of the main element symbols:
the display device comprises a display panel 10, a non-display area 11, a binding area 111, a flexible circuit board 112, a display area 12, a shielding area 121 and a 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;
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying 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 is to 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," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation 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 disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
At present, file scanning is mainly realized based on scanning and printing equipment such as a printer or a camera of a mobile phone, however, file scanning performed by the scanning and printing equipment needs to separately purchase the scanning and printing equipment, so that the cost is high, the operation is inconvenient, and an image obtained by file scanning performed by the camera of the mobile phone is easy to distort, so that the accuracy of the obtained image is low.
In view of the above, referring to fig. 1, the present application provides a display panel 10, where 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 in a staggered manner with respect to 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 manner. The plurality of photosensitive elements 24 are disposed corresponding to the color film layers 22 of the predetermined number of rows.
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 scan the document.
In the display panel 10 of this application, through set up a plurality of light sensitive elements 24 in shielding layer 23, when display panel 10 surface was placed and is waited to scan the file, light jetted out to waiting to scan the file from various rete 22 and takes place the reflection, and light after the reflection reachs light sensitive element 24 to carry out photoelectric conversion according to the power of the light signal of light sensitive element 24 and obtain the scanning image. The document scanning function of the display panel 10 is realized, and document scanning can be performed no longer through a camera or a printing and scanning device, so that the accuracy of scanned images is ensured, and 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 disposed. The array of pixel light emitting areas 122 is provided with a plurality of sub-light emitting areas 1222, and the sub-light emitting areas 1222 emit light. The plurality of sub light emitting regions 1222 are formed with a plurality of rows and columns of light emitting rows.
The display panel 10 includes a plurality of light-sensitive elements 24, a plurality of light-sensitive elements 24 are arranged in the shielding region 121 and corresponding to the sub-light-emitting regions 1222 in a predetermined number of light-emitting rows, and at least one light-sensitive element 24 is arranged in each light-emitting row. For example, the sub-light emitting regions 1222 are formed with N rows of light emitting rows, N sub-light emitting regions 1222 are formed in the N rows of light emitting rows, the light sensing elements 24 include K, the K light sensing elements are distributed in the N rows of light emitting rows, each row of light emitting rows is provided with K light sensing elements 24, K is a positive integer and is greater than or equal to 1. Each of the photosensitive elements 24 is used for receiving light emitted by adjacent sub-light emitting areas in the same row and reflected by a document to be scanned. The number of sub-light emitting regions 1222 in each row is greater than or equal to the number of photosensors 24 in the row. For example, in the display area 12, 7*7 sub light emitting regions 1222 are arranged in an array, that is, the display area 12 includes 7 rows and 7 columns of light emitting rows, each row includes 7 sub light emitting regions 1222, and there are 7 or less than 7 light sensitive elements 24 in each row of light emitting rows.
The width of the photo-sensors 24 is less than the width of the blocking regions 121 so as to prevent the photo-sensors 24 from interfering with the light emitting sub-regions 1222 beyond the outside of the blocking regions 121, for example, the width of the blocking regions 121 is 10-16 micrometers, and the width of the photo-sensors 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 photosensitive element 24. Each of the gate signal lines 14 corresponds to a row of light emitting lines, the gate signal line 14 is connected to the sub-light emitting regions 1222 of the corresponding row in a row direction (lateral direction), and the gate signal line 14 is used for supplying a gate control signal 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 bonding area 111 and a Flexible Printed Circuit (FPC) 112, and the display panel 10 further includes a switch element 15, an analog-to-digital converter (ADC) 16, and a register, which are connected in sequence. It should be noted that the analog-to-digital converter 16, i.e. a/D converter, or ADC for short, refers to an electronic component for converting an analog signal into a digital signal. The switch 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 switch element 15 for transmitting the photoelectric signal generated by the photosensitive element 24 to the switch 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 more, that is, the number of the switching elements 15 and the analog-to-digital converters 16 may be set according to an actual product signal. For example, in some embodiments, the switch element 15 and the analog-to-digital converter 16 are one, the switch 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, there may be a plurality of switching elements 15 and analog-to-digital converters 16, and each switching element 15 is connected to one signal transmission line 13 and one analog-to-digital converter 16.
The switch element 15 is used for controlling the connection of the switch element 15 and the analog-to-digital converter 16 when receiving a control signal, and the analog-to-digital converter 16 is used for converting a photoelectric signal into a digital signal and transmitting the digital signal to a register for storage when receiving the photoelectric signal transmitted by the switch element 15. In addition, the register is also used for receiving and storing 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 directly obtained from the generation of the gate control signal, 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 blocking layer 23 are formed on the color film substrate 21, and the array substrate 25 is disposed on a side of the blocking layer 23 away from the color film substrate 21.
Specifically, the color film layers 22 include a plurality of color film layers 22 arranged in an array along a direction parallel to the color film substrate 21 on the color film substrate 21. The color film layer 22 corresponds to the sub-light emitting regions 1222 in the vertical direction of the color film substrate 21.
The blocking layer 23 may be a Black Matrix (Black Matrix), and the blocking layer 23 is staggered from the color film layer 22 along a direction perpendicular to the color film substrate 21. The shielding layer 23 is opaque, the color film layer 22 is transparent, and light emitted from the display panel 10 cannot pass through the shielding layer 23, but can only be emitted from the color film layer 22 to the outside of the display panel 10.
The photosensitive element 24 is formed on the surface of the shielding layer 23 near the array substrate 25. The signal transmission line 13 is formed in a shielding area 121 of the color filter substrate 21 and connected to the photosensitive element 24, and the switching element 15 and the analog-to-digital converter 16 are formed in a binding area 111 of the color filter substrate 21. The gate signal lines 14 are 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 blocking 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 filter 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 blocking 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 subpixel, the TFT substrate 21, the liquid crystal layer 26, a green filter and the color filter substrate 211 together form a green subpixel, and the TFT substrate 21, the liquid crystal layer 26, a blue filter and the color filter substrate 211 together form a blue subpixel.
The signal transmission line 13 is formed on the side of the color filter substrate 211 adjacent to the shielding layer 23 and connected to the photosensor 24. The switching element 15, the analog-to-digital converter 16, and the register are formed on the flexible circuit board 112 on the same layer as the color filter substrate 211. The gate signal lines 14 are formed on the array substrate 25 and are used for controlling the liquid crystal layer 26 such that the light of the backlight passes through the liquid crystal layer 26 and passes 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 understood that, in general, in the fabrication process of the OLED display panel 10, a first electrode layer is formed on a substrate, a plurality of anodes are formed in an array after the first electrode layer is patterned, an Electroluminescent Layer (EL) is formed on the anodes, a second electrode layer is formed on the EL layer as a common cathode layer, and a cover plate is attached to the second electrode layer or an encapsulation layer is covered on the second electrode layer to form the OLED display panel. That is, when 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 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 scan mode and a non-scan mode. The following description will be made with 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 start a scan mode, in which the gate signal lines 14 output gate control signals line by line for a frame, so as to drive the sub light emitting regions 1222 to emit light line by line, so that the sub light emitting regions 1222 can emit light out of the display panel 10.
In particular, 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 to control the display panel 10 to normally display an image, the enable signal received by the switch element 15 is at a low level, the photosensor 24 may receive external light from the display panel 10 to generate an electrical signal, and the electrical signal is grounded through the switch element 15 to GND, which does not interfere with the display signal of the display panel 10.
Referring to fig. 5, in the scan mode, the enable signal received by the switch element 15 is at a high level, the signal transmission lines 13 are connected to the analog-to-digital converter 16, the signal transmission lines 13 transmit the photo-electric signals generated by the photo-sensors 24 to the analog-to-digital converter 16, and it can be understood that, since the signal transmission lines 13 include a plurality of signal transmission lines 13, each signal transmission line 13 is connected to one column of the sub-light-emitting regions 1222, the photo-electric signals transmitted by the signal transmission lines 13 determine the column-wise position (x-coordinate) of the corresponding photo-sensor 24, and the digital-to-analog converter 16 can convert the photo-electric signals transmitted by the gate signal lines 14 into digital signals and transmit the digital signals to the register for storage, thereby completing the transmission and storage of the photo-electric signals of the photo-sensors 24, wherein the digital signals include the x-coordinate position signals and the luminance intensity signals of the photo-sensors 24. Meanwhile, the display panel 10 outputs a unique picture, the gate control signals are output by the gate signal lines 14 line by line in a frame manner to make the sub-light-emitting regions 1222 emit white light with a brightness level of L255, wherein the first frame controls the sub-light-emitting regions 1222 corresponding to the first row of photosensors 24 to emit light, the second frame controls the sub-light-emitting regions 1222 to emit light, and the … … and the nth frame control the sub-light-emitting regions 1222 to emit light, so as to serve as a light source for scanning a document. 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 corresponding areas of the light sensitive elements 24 to generate electro-optic signals. It should be noted that each of the light-sensitive elements 24 receives light emitted from two adjacent sub-light-emitting regions 1222 in the same row and reflected by the scanned document. It can be understood that the reflected light intensities collected by the photosensitive elements 24 in the corresponding areas of different patterns and characters of the document to be scanned are different, and the generated photoelectric signals have different magnitudes.
Referring to fig. 6, while the gate control signals are output to the sub-light emitting regions 1222 frame by the gate signal lines 14 so that the sub-light emitting regions 1222 emit white light with a pixel brightness level of L255, the register records the gate control signals for each frame during scanning, and it can be understood that the gate control signals for each frame control the sub-light emitting regions 1222 of the corresponding row to emit light. Each frame of the gate control signals controls a row of the sub-light emitting areas 1222 to emit light, so that the corresponding row of the light sensitive elements 24 can receive the reflected light. Therefore, during the scanning process, the photosensitive element 24 in the nth row of the nth frame receives the optical signal and converts the optical signal into an electrical signal, and the electrical signal is stored in the register. The line position (y-coordinate) of the photosensor can be determined by the register counting N lines directly at the time the nth frame occurs. Thus, the y-coordinate position, x-coordinate position signal, and brightness intensity signal of each photosensor 24 are combined to produce a scanned image of the scanned document.
Furthermore, the display panel 10 can perform N scanning, and during each scanning, the gate control signal and the photoelectric signal of the photosensitive element 24 are received, so as to generate a scanning image according to the gate control signal and the photoelectric signal, so that N images can be obtained after N scanning, and then the N images are synthesized to obtain the target scanning image. Therefore, even if the size of the file to be scanned is large, N scanning images can be obtained through N times of scanning, the target scanning images are obtained through synthesis, 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, which is applied to the display panel 10, and the scanning method includes:
01, under the condition that a file to be scanned is detected, transmitting a grid control signal line by line according to a frame to drive a display panel to emit light line by line;
02, receiving a grid control signal and a photoelectric signal of a photosensitive element; and
and 03, generating a scanning image of the file 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, where the processor 20 may be configured to implement the scanning method, or 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 in a case that a file to be scanned is detected. The processor 20 may be configured to receive the gate control signal and the photoelectric signal of the photosensitive element, and the processor 20 may be further configured to generate a scanned image of the document to be scanned according to the gate control signal and the photoelectric signal.
The electronic device 100 may be an electronic device such as a smart wearable device such as a television, a computer, a cell phone, a tablet or electronic watch, a VR device, an AR device, and the like. For example, in some examples, the electronic device 100 is a mobile phone, and the display panel 10 refers to a screen of the mobile phone.
Specifically, the document to be scanned may be detected by a sensor of the electronic device 100 itself, or the document to be scanned may be detected according to an input instruction of the user, for example, the electronic device 100 may set a scanning function, and after the scanning function is turned on, the processor 20 may confirm that the document to be scanned is detected. It will be appreciated that the specific manner of how the document to be scanned is detected is not limited.
After the processor 20 detects the document to be scanned, it can generate the gate control signal and transmit the gate control signal line by line in frames through the gate signal line 14, so that the light emitted from the sub-light-emitting region 1222 can be emitted to the surface of the document to be scanned and reflected by the document to be scanned to the light-sensitive element, and the light-sensitive element generates the photoelectric signal according to the reflected light. Meanwhile, the processor 20 receives the gate control signal and the photo signal of the photo sensor 24, for example, the processor 20 may be connected to a register of the display panel 10 and receive the gate control signal and a digital signal generated from the photo signal of the photo sensor 24 from the register. The number of frames of the gate control signal is the same as the number of rows of photosensors 24, and the row-wise position (y-coordinate) of the photosensor 24 in the corresponding row is determined from the number of frames of the gate control signal, and the vertical position (x-coordinate) of the photosensor 24 and the brightness intensity signal of the photosensor 24 are determined from the digital signal. And then generates a scanned image of the document to be scanned based on the x-coordinate and the y-coordinate of each photosensitive element 24 and the brightness intensity signal.
In the present application, the sub-pixel 24 emits white light at a pixel brightness level of 255, and the generated scanned image is a black-and-white image.
In this way, the electronic device 100 can implement a file scanning function through the display panel 10, and can no longer scan files through a camera or a print scanning device, so that the accuracy of scanned images is ensured, and the operation is simple and convenient, and the cost is saved.
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, in the case that the document to be scanned is not detected, transmitting a second scanning signal to the switching element to ground the photoelectric signal.
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 the photoelectric signal when the document to be scanned is detected. The processor 20 may also be configured to transmit a second scanning signal to the switching element to ground the photo-electric signal in the event that a document to be scanned is not 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 light sensor 24 may receive the external light of the display panel 10 to generate an electrical signal, and the electrical signal is grounded through the switch element 15, so that the display signal of the display panel 10 is not interfered.
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 items.
Referring to fig. 11, the present application further provides a non-volatile computer-readable storage medium 40, where the non-volatile computer-readable storage medium 40 stores a computer program 42, and when the computer program 42 is executed by the processor 20, the processor 20 is caused to execute the scanning method of any one of the above items.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. 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: numerous changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit 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;
a color film layer 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 photosensitive elements are arranged in the shielding layer in an array mode and correspond to the color film layers in the preset number of rows;
in the scanning mode, light rays are emitted from the color film layer to a file to be scanned and reflected to the photosensitive element by the file to be scanned so as to realize file scanning.
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 area including a bonding area and a flexible circuit board, the display panel including a switching element and an analog-to-digital converter formed at the flexible circuit board, the switching element connecting the analog-to-digital converter and the signal transmission line extending to the bonding area.
4. The display panel of claim 3, wherein the display panel further comprises a register, the register being coupled to the analog-to-digital converter.
5. The display panel of claim 1, wherein the width of the photosensitive element is 8 microns or less.
6. The display panel according to claim 1, wherein the color film layer comprises a red filter, a green filter and a blue filter, and the red filter, the green filter and the blue filter are sequentially arranged at intervals.
7. The display panel of claim 1, further comprising an array substrate and a liquid crystal layer adjacent to each other, wherein the array substrate and the liquid crystal layer are located on a side of the barrier layer away from the color film substrate.
8. An electronic device characterized in that it comprises a display panel according to any one of claims 1-7.
9. A scanning method for the display panel according to any one of claims 1 to 8, the scanning method comprising:
under the condition that the file to be scanned is detected, controlling a grid signal line to transmit the grid control signal line by line according to a frame to drive the display panel to emit light line by line;
receiving the grid control signal and the photoelectric signal of the photosensitive element; and
and generating a scanning image of the file to be scanned according to the grid control signal and the photoelectric signal.
10. The scanning method of claim 9, further comprising:
under the condition that the file to be scanned is detected, transmitting a first scanning signal to a switching element to start the switching element to transmit the photoelectric signal;
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 storing a computer program which, when executed by a processor, causes the processor to perform the scanning method of any one of claims 9-10.
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