CN111781758A - Display screen and electronic equipment - Google Patents
Display screen and electronic equipment Download PDFInfo
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- CN111781758A CN111781758A CN202010629593.3A CN202010629593A CN111781758A CN 111781758 A CN111781758 A CN 111781758A CN 202010629593 A CN202010629593 A CN 202010629593A CN 111781758 A CN111781758 A CN 111781758A
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- charge amount
- display screen
- sensing unit
- driving chip
- gesture recognition
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
Abstract
The embodiment of the application discloses display screen and electronic equipment, wherein, this display screen includes: the display panel comprises a display area, wherein the display area comprises scanning lines, and scanning signals are input into the scanning lines; the gesture recognition circuit is arranged at the peripheral edge of the light emitting side of the display area; it includes: the photoelectric sensing unit is used for outputting the current induced charge amount to the driving chip when receiving a scanning signal; the photoelectric sensing unit comprises at least one photoelectric sensor; and the driving chip is used for acquiring the difference value between the current induced charge amount and the charge amount before the preset induced charge amount, obtaining a voltage difference according to the difference value of the charge amount, and determining that the shielding object is a gesture when the voltage difference is greater than a preset threshold voltage. The display screen and the electronic equipment can improve the screen occupation ratio.
Description
Technical Field
The application relates to the technical field of display, in particular to a display screen and electronic equipment.
Background
With the development of the comprehensive display screen technology, the requirement for the screen occupation ratio of the display screen is higher and higher, and the improvement of the integration level of the display screen becomes a major trend of the development of the display screen technology.
However, the gesture recognition function is currently set in the non-display area, thereby reducing the screen occupation ratio of the display screen.
Disclosure of Invention
The embodiment of the application provides a display screen and electronic equipment, and the screen occupation ratio can be improved.
The embodiment of the application provides a display screen, it includes:
the display panel comprises a display area, wherein the display area comprises scanning lines, and scanning signals are input into the scanning lines;
the gesture recognition circuit is arranged at the peripheral edge of the light emitting side of the display area; the gesture recognition circuit includes:
a driving chip;
the photoelectric sensing unit is used for outputting the current induced charge amount to the driving chip when receiving a scanning signal; the photoelectric sensing unit comprises at least one photoelectric sensor;
the driving chip is used for obtaining a difference value between the current induced charge amount and the charge amount before the preset induced charge amount, obtaining a voltage difference according to the difference value of the charge amount, and determining that the shielding object is a gesture when the voltage difference is larger than a preset threshold voltage.
The invention also provides electronic equipment which comprises the display panel.
The invention also provides a gesture recognition method, which is applied to the display screen and comprises the following steps:
acquiring a difference value between the current induced charge amount and the charge amount before the preset induced charge amount;
obtaining a voltage difference according to the charge quantity difference;
and when the voltage difference is greater than the preset threshold voltage, determining that the obstruction is a gesture.
The display screen and the electronic equipment comprise a display panel, wherein the display panel comprises a display area, the display area comprises scanning lines, and scanning signals are input into the scanning lines; the gesture recognition circuit is arranged at the peripheral edge of the light emitting side of the display area; it includes: the photoelectric sensing unit is used for outputting the current induced charge amount to the driving chip when receiving a scanning signal; the photoelectric sensing unit comprises at least one photoelectric sensor; the driving chip is used for obtaining the difference value between the current induced charge amount and the charge amount before the preset induced charge amount, obtaining a voltage difference according to the difference value of the charge amount, and determining that the shielding object is a gesture when the voltage difference is greater than a preset threshold voltage; because the gesture recognition circuit is arranged in the display area, the screen occupation ratio is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a top view of a display screen according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a gesture recognition circuit according to an embodiment of the present disclosure.
Fig. 3 is a schematic structural diagram of a gesture recognition circuit according to another embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of a gesture recognition circuit according to yet another embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of a gesture recognition circuit according to yet another embodiment of the present disclosure.
Fig. 6 is a top view of a display screen corresponding to a first gesture according to an embodiment of the present disclosure.
Fig. 7 is a top view of a display screen corresponding to a second gesture according to an embodiment of the present application.
Fig. 8 is a top view of a display screen corresponding to a third gesture provided in an embodiment of the present application.
Fig. 9 is a top view of a display screen corresponding to a fourth gesture provided in an embodiment of the present application.
Fig. 10 is a top view of a display screen corresponding to a fifth gesture according to an embodiment of the present application.
Fig. 11 is a top view of a display screen corresponding to a sixth gesture according to an embodiment of the present application.
Fig. 12 is a top view of a display screen corresponding to a seventh gesture according to an embodiment of the present application.
Fig. 13 is a top view of a display screen corresponding to an eighth gesture according to an embodiment of the present application.
Fig. 14 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of 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 the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and 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 first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. 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.
Referring to fig. 1, fig. 1 is a top view of a display screen according to an embodiment of the present disclosure.
As shown in fig. 1, in one embodiment, the display screen 100 includes: a display panel 10 and at least one gesture recognition circuit 20.
The display panel 10 includes a display area 101, the display area 101 is used for displaying a picture, and the display area 101 includes a data line and a scan line and a plurality of sub-pixels (none of which is shown in the figure). The scanning line is inputted with a scanning signal. In a top view, the display area 101 may further include a plurality of thin film transistors, wherein each pixel corresponds to one thin film transistor. The display panel 10 is a liquid crystal display panel or an organic light emitting diode display panel.
With reference to fig. 2 and fig. 3, the gesture recognition circuit 20 is disposed at the peripheral edge of the light emitting side of the display area 101, and the gesture recognition circuit 20 includes: at least one photoelectric sensing unit 21 and a driving chip 22.
When receiving the scanning signal, the photoelectric sensing unit 21 outputs the current induced charge amount to the driving chip 22; the photo-sensing unit 21 includes at least one photo-sensor 211.
The driving chip 22 is configured to obtain a difference between a current induced charge amount and a charge amount before a preset induced charge amount, obtain a voltage difference according to the charge amount difference, and determine that the blocking object is a gesture when the voltage difference is greater than a preset threshold voltage. The voltage difference may be an absolute value of the actual voltage difference.
It will be appreciated that although four gesture recognition circuits 20 are shown in fig. 1, in other embodiments, the display screen 100 may include one, two, three, or more than four gesture recognition circuits 20.
Taking one of the gesture recognition circuits as an example, when there is no shielding object above the screen, the induced charge amount generated by the photoelectric sensing unit 21 under the light intensity a1 of the ambient light is Q0, and Q0 is the preset induced charge amount.
When the palm is drawn over the screen, the palm can shield part of the light intensity, and the palm can reflect part of the light intensity emitted by the screen, at this time, the light intensity reaching the photoelectric sensing unit 21 is A2, the induced charge amount generated by the photoelectric sensing unit 21 is Q1, wherein the charge amount difference Delta Q is Q1-Q0, the photoelectric sensing unit 21 outputs the charge amount difference Delta Q to the driving chip 22, the driving chip 22 obtains the voltage difference Delta V according to the charge amount difference, and when the judgment result shows that the Delta V is greater than Vf, the palm is determined to draw over the screen, namely, the shielding object is a gesture. Vf can be set according to actual requirements, and is not limited herein. Q0 is a reference value, in an embodiment, a single photoelectric sensor may be provided to extract the reference value in real time, or the photoelectric sensing unit may also determine the reference value by early reset scanning, and the reference value is not limited to this.
When the display screen is in a dark room environment and no palm is scratched, the ambient light received by the photoelectric sensing unit 21 is 0; when the palm is stroked above the screen, the photoelectric sensing unit 21 receives light reflected by the palm; this corresponds to a negative value for Δ Q; similarly, when the display screen is in bright ambient light and the palm slides over the screen, the display screen can shield the ambient light and reflect light emitted by the screen to the photoelectric sensing unit, and at the moment, the delta Q is a positive value; Δ V is positive.
The working principle of the rest gesture recognition circuits is the same, and the description is omitted here.
In one embodiment, as shown in fig. 2, the photo sensor unit 21 includes at least one photo sensor 211 and a memory module 212, a first end of the photo sensor 211 is connected to the driving chip 22 and one end of the memory module 212, respectively, and a second end of the photo sensor 211 and the other end of the memory module 212 are both grounded. In one embodiment, the first end of the photosensor 211 is a cathode, and the second end of the photosensor 211 is an anode. In one embodiment, the memory module 212 may include a capacitor C1, although the structure of the memory module 212 is not limited thereto.
As shown in fig. 3, in order to improve the accuracy of gesture recognition, the gesture recognition circuit 20 includes a first photo-sensing unit 21 and a second photo-sensing unit 21'; the driving chip 22 is configured to obtain a voltage difference according to the charge amount difference of the first photo-sensing unit 21 and the charge amount difference of the second photo-sensing unit 21'. In a preferred embodiment, the driving chip 22 is configured to obtain the voltage difference according to an average value of the charge amount difference of the first photo-sensing unit 21 and the charge amount difference of the second photo-sensing unit 21'. Of course, the calculation method of the voltage difference is not limited to this. Wherein the first and second photo-sensing units 21 and 21' have the same structure.
In another embodiment, as shown in fig. 4, the photo sensor unit 21 includes at least one photo sensor 211 and a switch device T1, a first terminal of the photo sensor 211 is connected to a control terminal of the switch device T1, an output terminal of the switch device T1 is connected to the driving chip 22, an input terminal of the switch device T1 is connected to a power voltage Vcc, and a second terminal of the photo sensor 211 is grounded. The power supply voltage Vcc is specifically set according to the type of the switching element T1, for example, when the switching element T1 is N-type, the power supply voltage Vcc is high.
As shown in fig. 5, in order to improve the accuracy of gesture recognition, the gesture recognition circuit 20 may also include a first photo-sensing unit 21 and a second photo-sensing unit 21'; the driving chip 22 is configured to obtain a voltage difference according to the charge amount difference of the first photo-sensing unit 21 and the charge amount difference of the second photo-sensing unit 21'. Wherein the first and second photo-sensing units 21 and 21' have the same structure.
It is understood that fig. 2 to 5 only show an example and are not intended to limit the present invention, and the specific structure of the gesture recognition circuit 20 is not limited thereto.
In one embodiment, the photo-sensing unit 211 comprises a plurality of photo-sensors 211 connected in parallel, and the photo-sensors 211 include, but are not limited to, photodiodes or photo-sensitive (PIN) diodes. In other embodiments, the photo sensor unit 211 may also include one photo sensor 211.
In a preferred embodiment, the display screen 100 includes four gesture recognition circuits 20, and the gesture recognition circuits 20 are disposed at each of the peripheral edges of the display area 101. That is, each gesture recognition circuit 20 is disposed at one of the four edges of the display area 101.
In another embodiment, the driving chip 22 is further configured to determine the direction of the gesture according to the sequence of the voltage differences generated by each of the gesture recognition circuits 20.
As shown in fig. 6 to 12, for the convenience of distinction, the four gesture recognition circuits 20 are respectively denoted by a1 to a4, and the voltage differences acquired by the driving chips of a1 to a4 are respectively Δ V1, Δ V2, Δ V3, and Δ V4.
In one embodiment, when the data is generated in the order:
as shown in fig. 6, when the production order of Δ V1 is earlier than Δ V3, and the production order of Δ V4 is earlier than Δ V2; the direction of the gesture is determined to be from left to right.
As shown in fig. 7, when the production order of Δ V2 is earlier than Δ V3, and the production order of Δ V4 is earlier than Δ V1; the direction of the gesture is determined to be from right to left.
As shown in fig. 8, when the production order of Δ V3 is earlier than Δ V1, and the production order of Δ V2 is earlier than Δ V4; the direction of the gesture is determined to be from top to bottom.
As shown in fig. 9, when the production order of Δ V4 is earlier than Δ V1, and the production order of Δ V2 is earlier than Δ V3; the direction of the gesture is determined to be from bottom to top.
As shown in fig. 10, when the generation order of Δ V1 is earlier than Δ V2 and Δ V4, and the generation order of Δ V3 is earlier than Δ V2 and Δ V4, the direction of the gesture is determined to be upper left to lower right.
As shown in fig. 11, when the production order of Δ V2 is earlier than Δ V1 and Δ V3, and the production order of Δ V4 is earlier than Δ V1 and Δ V3; the direction of the gesture is determined to be right down, left up.
As shown in fig. 12, when the production order of Δ V1 is earlier than Δ V2 and Δ V3, and the production order of Δ V4 is earlier than Δ V2 and Δ V3; the direction of the gesture is determined to be left down to right up.
As shown in fig. 13, when the production order of Δ V2 is earlier than Δ V1 and Δ V4, and the production order of Δ V3 is earlier than Δ V1 and Δ V4; the direction of the gesture is determined to be top right, bottom left.
The embodiment of the application further provides a gesture recognition method, which is applied to the display screen, and the method comprises the following steps:
s101, acquiring a difference value between the current induced charge amount and the charge amount before the preset induced charge amount;
s102, obtaining a voltage difference according to the charge quantity difference;
s103, when the voltage difference is larger than a preset threshold voltage, determining that the obstruction is a gesture.
In another embodiment, the step S101 may be replaced with step S201:
s201, acquiring a difference value between the current induced charge amount of the first photoelectric sensing unit and a first charge amount before a preset induced charge amount; acquiring a difference value between the current induced charge amount of the second photoelectric sensing unit and a second charge amount before the preset induced charge amount;
the above step S102 may be replaced with step S202:
s202, obtaining a voltage difference according to the first charge quantity difference and the second charge quantity difference;
in one embodiment, the voltage difference may be obtained from an average value of the first charge amount difference and the second charge amount difference.
The gesture recognition method of the embodiment includes all technical solutions of the display screen, so that all technical effects can be achieved, and details are not repeated here.
Referring to fig. 14, fig. 14 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 200 may include a display screen 100, control circuitry 60, and a housing 70. It should be noted that the electronic device 200 shown in fig. 14 is not limited to the above, and may further include other devices, such as a camera, an antenna structure, a thread unlocking module, and the like.
Wherein, the display screen 100 is disposed on the housing 70.
In some embodiments, the display screen 100 may be fixed to the housing 70, and the display screen 100 and the housing 70 form a closed space to accommodate the control circuit 60 and the like.
In some embodiments, the housing 70 may be made of a flexible material, such as a plastic housing or a silicone housing.
The control circuit 60 is installed in the housing 70, the control circuit 60 may be a motherboard of the electronic device 200, and one, two or more functional components of a battery, an antenna structure, a microphone, a speaker, an earphone interface, a universal serial bus interface, a camera, a distance sensor, an ambient light sensor, a receiver, a processor, and the like may be integrated on the control circuit 60.
Wherein the display screen 100 is installed in the housing 70, and at the same time, the display screen 100 is electrically connected to the control circuit 60 to form a display surface of the electronic device 200. The display screen 100 may include a display area and a non-display area. The display area may be used to display a screen of the electronic device 200 or provide a user with touch control. The non-display area may be used to set various functional components.
The electronic device includes, but is not limited to, a mobile phone, a tablet computer, a computer monitor, a game machine, a television, a wearable device, and other life appliances or household appliances with display functions.
The display screen and the electronic equipment comprise a display panel, wherein the display panel comprises a display area, the display area comprises scanning lines, and scanning signals are input into the scanning lines; the gesture recognition circuit is arranged at the peripheral edge of the light emitting side of the display area; it includes: the photoelectric sensing unit is used for outputting the current induced charge amount to the driving chip when receiving a scanning signal; the photoelectric sensing unit comprises at least one photoelectric sensor; the driving chip is used for obtaining the difference value between the current induced charge amount and the charge amount before the preset induced charge amount, obtaining a voltage difference according to the difference value of the charge amount, and determining that the shielding object is a gesture when the voltage difference is greater than a preset threshold voltage; because the gesture recognition circuit is arranged in the display area, the screen occupation ratio is improved, the integration level of the display screen is improved, and the production cost is reduced.
The display screen and the electronic device provided by the embodiment of the present application are described in detail above, and the principle and the implementation of the present application are described herein by applying specific examples, and the description of the above embodiments is only used to help understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A display screen, comprising:
the display panel comprises a display area, wherein the display area comprises scanning lines, and scanning signals are input into the scanning lines;
the gesture recognition circuit is arranged at the peripheral edge of the light emitting side of the display area; the gesture recognition circuit includes:
a driving chip;
the photoelectric sensing unit is used for outputting the current induced charge amount to the driving chip when receiving a scanning signal;
the driving chip is used for obtaining a difference value between the current induced charge amount and the charge amount before the preset induced charge amount, obtaining a voltage difference according to the difference value of the charge amount, and determining that the shielding object is a gesture when the voltage difference is larger than a preset threshold voltage.
2. The display screen of claim 1, wherein the photo sensor unit comprises at least one photo sensor and a storage module, a first end of the photo sensor is connected to the driving chip and one end of the storage module, and a second end of the photo sensor and the other end of the storage module are both grounded.
3. The display screen of claim 1, wherein the photo sensor unit comprises at least one photo sensor and a switch element, a first terminal of the photo sensor is connected to a control terminal of the switch element, an output terminal of the switch element is connected to the driving chip, an input terminal of the switch element is connected to a power supply voltage, and a second terminal of the photo sensor is grounded.
4. The display screen of claim 1, wherein the photo-sensing unit comprises a plurality of parallel photo-sensors.
5. Display screen according to claim 1,
the gesture recognition circuit comprises a first photoelectric sensing unit and a second photoelectric sensing unit;
the driving chip is used for obtaining a voltage difference according to the charge quantity difference value of the first photoelectric sensing unit and the charge quantity difference value of the second photoelectric sensing unit.
6. The display screen of claim 5, wherein the driving chip is configured to obtain the voltage difference according to an average value of the charge amount difference of the first photo-sensing unit and the charge amount difference of the second photo-sensing unit.
7. The display screen according to claim 1, wherein the driver chip is further configured to determine the direction of the gesture according to a sequence of the voltage differences generated by the gesture recognition circuits.
8. The display screen of claim 1, wherein the display screen includes four gesture recognition circuits, the gesture recognition circuits being disposed at each of the peripheral edges of the display area.
9. An electronic device characterized by comprising a display screen according to any one of claims 1 to 8.
10. A gesture recognition method applied to the display screen according to any one of claims 1 to 8, the method comprising:
acquiring a difference value between the current induced charge amount and the charge amount before the preset induced charge amount;
obtaining a voltage difference according to the charge quantity difference;
and when the voltage difference is greater than the preset threshold voltage, determining that the obstruction is a gesture.
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| CN202010629593.3A CN111781758A (en) | 2020-07-03 | 2020-07-03 | Display screen and electronic equipment |
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| CN202010629593.3A CN111781758A (en) | 2020-07-03 | 2020-07-03 | Display screen and electronic equipment |
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Application publication date: 20201016 |