CN111812883A - Display device and control method thereof - Google Patents
Display device and control method thereof Download PDFInfo
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- CN111812883A CN111812883A CN202010650560.7A CN202010650560A CN111812883A CN 111812883 A CN111812883 A CN 111812883A CN 202010650560 A CN202010650560 A CN 202010650560A CN 111812883 A CN111812883 A CN 111812883A
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- 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
- G02F1/13338—Input devices, e.g. touch panels
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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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
- G06F3/0412—Digitisers structurally integrated in a display
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- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal Display Device Control (AREA)
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Abstract
The application provides a display device and a control method thereof, the display device comprises an array substrate, a color film substrate, a liquid crystal layer and a backlight module, the array substrate comprises a transistor layer, the transistor layer comprises a first transistor and a second transistor, the first transistor is an infrared induction transistor, the second transistor is a switch transistor, the color film substrate comprises a black matrix part and an infrared light filtering part, the thickness of the infrared light filtering part is larger than that of the black matrix part, the black matrix part is not connected with the infrared light filtering part, the first transistor is arranged corresponding to the infrared light filtering part, the second transistor is arranged corresponding to the black matrix part, the liquid crystal layer is arranged between the array substrate and the color film substrate, and the backlight module is positioned on one side of the array substrate, which is far away from the color film. The signal-to-noise ratio is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display device and a control method thereof.
Background
With the development of display technology, it is a trend to integrate sensors into a display panel, for example, both touch and optical sensors are used to attach the sensors to the outside of a display screen, but the light efficiency of the display panel is reduced and the cost is increased.
Disclosure of Invention
The application provides a display device and a control method thereof, which are used for improving the signal-to-noise ratio of the display device.
The application provides a display device, including:
the array substrate comprises a transistor layer, the transistor layer comprises a first transistor and a second transistor, the first transistor is an infrared induction transistor, and the second transistor is a switch transistor;
the color film substrate comprises a black matrix part and an infrared light filtering part, the thickness of the infrared light filtering part is larger than that of the black matrix part, the black matrix part is not connected with the infrared light filtering part, the first transistor is arranged corresponding to the infrared light filtering part, and the second transistor is arranged corresponding to the black matrix part;
the liquid crystal layer is arranged between the array substrate and the color film substrate; and
the backlight module is positioned on one side of the array substrate, which is far away from the color film substrate, and comprises a visible light source and an infrared light source.
In the display device provided by the application, the thickness of the infrared filter part is 2-5 microns.
In the display device provided by the present application, the thickness of the black matrix portion is 0.2 to 1.8 micrometers.
In the display device provided by the application, the material of the black matrix part and the material of the infrared filter part comprise one or more of carbon black and acrylic resin.
In the display device provided by the application, the color film substrate further comprises a visible light filter part, and the visible light filter part is arranged between the black matrix part and the infrared filter part.
In the display device provided by the present application, the visible light filter portion includes one of a red filter portion, a green filter portion, and a blue filter portion.
The present application provides a control method of a display device, the control method being for controlling the display device as described above, including:
turning on an infrared light source, and controlling the liquid crystal layer to be opened through a second transistor;
detecting infrared light rays through a first transistor to generate first infrared light intensity information;
judging whether the acquired first infrared light intensity information is in a first preset range or not;
if yes, responding to a user instruction;
if not, the first infrared light intensity information is continuously acquired.
In the method for controlling a display device provided by the present application, after the step of detecting infrared light rays through the first transistor and generating first infrared light intensity information, before the step of determining whether the acquired first infrared light intensity information is within a first preset range, the method further includes:
judging whether the first infrared light intensity information exceeds a first threshold value;
and if not, executing the step of judging whether the acquired first infrared light intensity information is in a first preset range.
In the method for controlling a display device provided by the present application, after the step of determining whether the first infrared light intensity information exceeds a first threshold, the method further includes:
if yes, judging whether the first infrared light intensity information is in a second preset range;
after the step of judging whether the first infrared light intensity information is in a second preset range, the method further comprises the following steps:
and if not, executing the step of judging whether the first infrared light intensity information exceeds a first threshold value.
In the method for controlling a display device provided by the present application, after the step of determining whether the first infrared light intensity information is within a second preset range, the method further includes:
if yes, the infrared light source is turned off, and second infrared light intensity information is obtained;
judging whether the difference value is within a third preset range;
if yes, responding to a user instruction;
and if not, executing the step of judging whether the first infrared light intensity information exceeds a first threshold value.
The application provides a display device and a control method thereof, the display device comprises an array substrate, a color film substrate, a liquid crystal layer and a backlight module, the array substrate comprises a transistor layer, the transistor layer comprises a first transistor and a second transistor, the first transistor is an infrared induction transistor, the second transistor is a switch transistor, the color film substrate comprises a black matrix part and an infrared light filtering part, the thickness of the infrared light filtering part is larger than that of the black matrix part, the black matrix part is not connected with the infrared light filtering part, the first transistor is arranged corresponding to the infrared light filtering part, the second transistor is arranged corresponding to the black matrix part, the liquid crystal layer is arranged between the array substrate and the color film substrate, the backlight module is positioned at one side of the array substrate far away from the color film substrate, the backlight module comprises a visible light source and an infrared light source. The signal-to-noise ratio of the display device is improved, and the light efficiency loss of the display device is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the present application, the drawings needed to be used in the description of the embodiments will be 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 structural sectional view of a display device provided in the present application.
Fig. 2 is a transmission spectrum diagram of a black matrix portion and an infrared filter portion provided in the present application.
Fig. 3 is a first flowchart of a control method of a display device according to the present application.
Fig. 4 is a second flowchart of a control method of a display device provided in 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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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.
Referring to fig. 1, fig. 1 is a structural cross-sectional view of a display device provided in the present application. The present application provides a display device 10. The display device 10 includes an array substrate 100, a color filter substrate 200, a liquid crystal layer 300, and a backlight module 400.
The array substrate 100 includes a transistor layer 500 and a first substrate 110. The transistor layer 500 includes a first transistor 510 and a second transistor 520. The first transistor 510 is an infrared sensing transistor. The second transistor 520 is a switching transistor. The first transistor 510 includes a first gate layer 511, a first gate insulating layer 512, a first active layer 513, a first source electrode 514, and a first drain electrode 515. The first gate layer 511 is disposed on the first substrate 110. The first gate insulating layer 512 is disposed on the first gate layer 511. The first active layer 513 is disposed on the first gate insulating layer 512. The material of the first active layer 513 includes silicon and germanium. The first source electrode 514 is disposed at one side of the first active layer 513. The first drain electrode 515 is disposed at the other side of the first active layer 515. The second transistor 520 includes a second gate electrode layer 521, a second gate insulating layer 522, a second active layer 523, a second source electrode 524, and a second drain electrode 525. The second gate layer 511 is disposed on the first substrate 110. The second gate layer 521 is insulated from the first gate layer 511. The second gate insulating layer 512 is disposed on the second gate layer 511. The second gate insulating layer 522 shares a layer with the first gate insulating layer 512. The second active layer 513 is disposed on the second gate insulating layer 512. The material of the second active layer 513 includes amorphous silicon. The second active layer 523 is not in contact with the first active layer 513. The second source electrode 514 is disposed at one side of the second active layer 513. The second drain electrode 515 is disposed at the other side of the second active layer 515.
In another embodiment, the display device 10 further comprises a passivation layer 600. The passivation layer is disposed on the transistor layer 500.
The color filter substrate 200 includes a second substrate 210, an infrared filter portion 220, and a black matrix portion 230. The infrared filter part 220 and the black matrix part 230 are disposed on the second substrate 210. The infrared filter part 220 and the black matrix part 230 are disposed in the same layer. The thickness H of the infrared filter part 220 is greater than the thickness H of the black matrix part 230. The black matrix 230 is not in contact with the infrared filter 220. The first transistor 510 is disposed corresponding to the infrared filter portion 220. The second transistor 510 is disposed corresponding to the black matrix part 230.
In another embodiment, the thickness H of the infrared filter part 220 is 2 to 5 micrometers.
In another embodiment, the thickness h of the black matrix part 230 is 0.2 to 1.8 micrometers.
In another embodiment, the material of the black matrix part 230 and the material of the infrared filter part 220 include one or a combination of carbon black and acrylic resin.
Referring to fig. 2, fig. 2 is a transmission spectrum diagram of a black matrix portion and an infrared filter portion provided in the present application. In this application, will infrared light filtering part's thickness sets to the thickness that is greater than black matrix portion for infrared light filtering part absorbs the visible light in the ambient light, and then reduces the influence of ambient light to display device, and then improves display device's SNR.
In another embodiment, the color filter substrate 200 further includes a visible light filter portion 240. The visible light filter 240 is disposed on the second substrate 210. The visible light filter 240 is disposed in the same layer as the black matrix 230 and the infrared filter 220. The visible light filter 240 is disposed between the black matrix 230 and the infrared filter 220.
In another embodiment, the visible light filter portion 240 includes one of a red filter portion, a green filter portion, and a blue filter portion.
The liquid crystal layer 300 is disposed between the array substrate 100 and the color film substrate 200.
In another implementation, the display device 10 further includes a barrier layer 700. The barrier layer 700 is disposed in the liquid crystal layer 300.
In another embodiment, the display device 10 further includes a first alignment film 800 and a second alignment film 900. The first alignment film 800 is disposed on a side of the liquid crystal layer 300 close to the color film substrate 200. The second alignment film 900 is disposed on the other side of the liquid crystal layer 300 away from the color film substrate 200.
In another embodiment, the display device 10 further includes a first conductive layer 1000 and a second conductive layer 1100. The first conductive layer 1000 is disposed on the first alignment film 800. The second conductive layer 1100 is disposed on the second alignment film 900.
The backlight module 400 is located on a side of the array substrate 100 away from the color film substrate 200, and the backlight module 400 includes a visible light source and an infrared light source.
In this application, be provided with infrared light source at backlight unit, reduced ambient light to display device's influence, improved display device's SNR.
The application provides a display device and a control method thereof, the display device comprises an array substrate, a color film substrate, a liquid crystal layer and a backlight module, the array substrate comprises a transistor layer, the transistor layer comprises a first transistor and a second transistor, the first transistor is an infrared induction transistor, the second transistor is a switch transistor, the color film substrate comprises a black matrix part and an infrared light filtering part, the thickness of the infrared light filtering part is larger than that of the black matrix part, the black matrix part is not connected with the infrared light filtering part, the first transistor is arranged corresponding to the infrared light filtering part, the second transistor is arranged corresponding to the black matrix part, the liquid crystal layer is arranged between the array substrate and the color film substrate, the backlight module is positioned at one side of the array substrate far away from the color film substrate, the backlight module comprises a visible light source and an infrared light source. The black matrix part and the infrared light filtering part are respectively made of the same material, so that the preparation process is simplified, the cost is reduced, the signal-to-noise ratio of the display device is improved, and the light efficiency loss of the display device is reduced.
Referring to fig. 3, fig. 3 is a first flowchart of a control method of a display device according to the present application. The present application also provides a control method of a display apparatus for controlling the display apparatus as described above, specifically, the method includes:
step S20, turning on the infrared light source, and controlling the liquid crystal layer 400 to be turned on through the second transistor 520.
In step S30, the infrared light is detected by the first transistor 510 to generate first infrared light intensity information.
The first transistor 510 detects infrared light including infrared light emitted from the backlight module 400, reflected light, and infrared light in the ambient light, and generates first infrared light intensity information. The ambient light includes all light sources except the backlight module 400.
And step S40, judging whether the acquired first infrared light intensity information is in a first preset range.
And step S50, if yes, responding to the user instruction.
And step S60, if not, continuing to acquire the first infrared light intensity information.
The following description will be made by taking the sequence of step S40, step S50, and step S60 as an example.
First, step S40 is performed, that is, the step of determining whether the acquired first infrared light intensity information is within a first preset range is performed. If the first infrared light intensity information is within the first preset range, then step S50 is executed, that is, a corresponding user instruction is executed. If the first infrared light intensity information is not within the first preset range, step S60 is executed, that is, the step S continues to acquire the first infrared light intensity information.
Referring to fig. 4, fig. 4 is a second flowchart of a control method of a display device according to the present application. After the step of detecting infrared light rays through the first transistor 510 and generating first infrared light intensity information, before the step of determining whether the acquired first infrared light intensity information is within a first preset range, the method further includes:
and step S70, judging whether the first infrared light intensity information exceeds a first threshold value.
Step S40, if not, executing the step of determining whether the acquired first infrared light intensity information is in a first preset range.
And step S71, if yes, judging whether the first infrared light intensity information is in a second preset range.
Step S72, if not, executing a step of determining whether the first infrared light intensity information exceeds a first threshold.
And step S73, if yes, the infrared light source is turned off, and second infrared light intensity information is acquired.
And step S74, judging whether the difference value is in a third preset range.
And step S75, if yes, responding to the user instruction.
Step S76, if not, executing a step of determining whether the first infrared light intensity information exceeds a first threshold.
The following description will be made by taking the sequence of step S70, step S40, step S71, step S72, step S73, step S74, step S75, and step S76 as an example.
First, step S70 is performed, that is, the step of determining whether the first infrared light intensity information exceeds a first threshold value is performed. If the first infrared light intensity information does not exceed the first threshold, step S40 is executed, that is, the step of determining whether the acquired first infrared light intensity information is within the first preset range is executed. If the acquired first infrared intensity information exceeds the first threshold, step S71 is executed, that is, the step of determining whether the first infrared intensity information is within the second preset range is executed. If the first infrared light intensity information is not in the second preset range, step S72 is executed, that is, the step of determining whether the first infrared light intensity information exceeds the first threshold is executed. If the first infrared light intensity information is within the second preset range, step S73 is executed, that is, the infrared light source is turned off, and second infrared light intensity information is obtained. Step S74 is executed, that is, it is determined whether the difference is within a third predetermined range, that is, the difference is the difference between the first infrared intensity information and the second infrared intensity information. If the difference value is within the third preset range, step S75 is executed, i.e. responding to the user instruction. If the difference is not within the third preset range, step S76 is executed, that is, the step of determining whether the first infrared light intensity information exceeds the first threshold is executed.
For example, the infrared light source is turned on, and the liquid crystal layer 400 is controlled to be turned on by the second transistor 520. The infrared light is detected by the first transistor 510 to generate first infrared light intensity information, where the first infrared intensity information is R1. And judging whether the first infrared light intensity information exceeds a first threshold value. Specifically, for example, it is determined whether the first infrared light intensity information exceeds 1000 lux of ambient light. And if the first infrared light intensity information does not exceed a first threshold value, executing the step of judging whether the acquired first infrared light intensity information is in a first preset range. If the acquired first infrared intensity information is in a first preset range, responding to a user instruction, wherein the first infrared intensity information at the moment is R2At this time, R2Including infrared light emitted from the backlight module 400 and reflected light and ambient lightMedium infrared light rays. And if the acquired first infrared light intensity information is not in the first preset range, continuing to acquire the first infrared light intensity information. And if the first infrared light intensity information exceeds a first threshold value, judging whether the first infrared light intensity information is in a second preset range. And if the first infrared light intensity information is not in a second preset range, continuing to execute the step of judging whether the first infrared light intensity information exceeds a first threshold value. If the first infrared intensity information is in a second preset range, the first infrared intensity information at the moment is R3At this time, R3Including infrared light emitted from the backlight module 400, reflected light, and infrared light in ambient light. Then, the infrared light source is turned off, and second infrared light intensity information is obtained, wherein the second infrared intensity information at the moment is R4At this time, R4Including infrared light emitted by the backlight module 400 and infrared light in ambient light. Judging the difference RsWhether it is within a third preset range, wherein the difference RsIs R3And R4The difference of (a). And responding to the user instruction if the difference value is within a third preset range. And if the difference value is not within a third preset range, continuing to execute the step of judging whether the first infrared light intensity information exceeds a first threshold value.
The application provides a display device and a control method thereof, the control method of the display device comprises the steps of starting an infrared light source, controlling a liquid crystal layer to be opened through a second transistor, detecting infrared light through a first transistor, generating first infrared light intensity information, judging whether the acquired first infrared light intensity information is in a first preset range, responding to a user instruction if the acquired first infrared light intensity information is in the first preset range, and continuing to acquire the first infrared light intensity information if the acquired first infrared light intensity information is not in the first preset range. By controlling the opening and closing of the infrared light source in the backlight module, infrared light information is detected, and then a signal operated by a user is obtained, so that the signal source and the signal can be accurately reflected, and the signal-to-noise ratio of the display device is improved.
The foregoing provides a detailed description of embodiments of the present application, and the principles and embodiments of the present application have been described herein using specific examples, which are presented solely to aid in the understanding of 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 device, comprising:
the array substrate comprises a transistor layer, the transistor layer comprises a first transistor and a second transistor, the first transistor is an infrared induction transistor, and the second transistor is a switch transistor;
the color film substrate comprises a black matrix part and an infrared light filtering part, the thickness of the infrared light filtering part is larger than that of the black matrix part, the black matrix part is not connected with the infrared light filtering part, the first transistor is arranged corresponding to the infrared light filtering part, and the second transistor is arranged corresponding to the black matrix part;
the liquid crystal layer is arranged between the array substrate and the color film substrate; and
the backlight module is positioned on one side of the array substrate, which is far away from the color film substrate, and comprises a visible light source and an infrared light source.
2. The display device according to claim 1, wherein the infrared filter has a thickness of 2 to 5 μm.
3. The display device according to claim 1, wherein a thickness of the black matrix portion is 0.2 to 1.8 μm.
4. The display device according to claim 1, wherein a material of the black matrix portion and a material of the infrared filter portion include one or a combination of carbon black and acrylic resin.
5. The display device according to claim 1, wherein the color filter substrate further comprises a visible light filter portion, and the visible light filter portion is disposed between the black matrix portion and the infrared filter portion.
6. The display device according to claim 5, wherein the visible light filter portion includes one of a red filter portion, a green filter portion, and a blue filter portion.
7. A control method of a display device, the control method being for controlling the display device according to any one of claims 1 to 6, characterized by comprising:
turning on an infrared light source, and controlling the liquid crystal layer to be opened through a second transistor;
detecting infrared light rays through a first transistor to generate first infrared light intensity information;
judging whether the acquired first infrared light intensity information is in a first preset range or not;
if yes, responding to a user instruction;
if not, the first infrared light intensity information is continuously acquired.
8. The method for controlling a display device according to claim 7, wherein after the step of generating the first infrared light intensity information by detecting the infrared light through the first transistor, before the step of determining whether the acquired first infrared light intensity information is within a first preset range, the method further comprises:
judging whether the first infrared light intensity information exceeds a first threshold value;
and if not, executing the step of judging whether the acquired first infrared light intensity information is in a first preset range.
9. The method for controlling a display device according to claim 8, further comprising, after the step of determining whether the first infrared light intensity information exceeds a first threshold value:
if yes, judging whether the first infrared light intensity information is in a second preset range;
after the step of judging whether the first infrared light intensity information is in a second preset range, the method further comprises the following steps:
and if not, executing the step of judging whether the first infrared light intensity information exceeds a first threshold value.
10. The method for controlling a display device according to claim 9, wherein after the step of determining whether the first infrared light intensity information is within a second preset range, the method further comprises:
if yes, the infrared light source is turned off, and second infrared light intensity information is obtained;
judging whether the difference value is within a third preset range;
if yes, responding to a user instruction;
and if not, executing the step of judging whether the first infrared light intensity information exceeds a first threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Application publication date: 20201023 |