CN110716337B - Liquid crystal display panel, liquid crystal display and driving method thereof - Google Patents
Liquid crystal display panel, liquid crystal display and driving method thereof Download PDFInfo
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- CN110716337B CN110716337B CN201911024016.5A CN201911024016A CN110716337B CN 110716337 B CN110716337 B CN 110716337B CN 201911024016 A CN201911024016 A CN 201911024016A CN 110716337 B CN110716337 B CN 110716337B
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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
-
- 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
-
- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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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
- G02F1/133528—Polarisers
- G02F1/133548—Wire-grid polarisers
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
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Abstract
The invention discloses a liquid crystal display panel, a liquid crystal display and a driving method thereof, wherein the liquid crystal display panel comprises a color film substrate, an array substrate, a liquid crystal layer clamped between the array substrate and the color film substrate, an upper polarizer, a photosensitive sensor and a metal wire grating, wherein the upper polarizer is arranged on one side of the color film substrate, which is far away from the liquid crystal layer; the color film substrate is provided with a light path opening allowing light to penetrate, an orthographic projection area of the light path opening on the liquid crystal display panel is an identification sub-pixel, and a position different from the identification sub-pixel on the liquid crystal display panel is a display sub-pixel; the photosensitive sensor is arranged on one side of the array substrate, which is different from the liquid crystal layer, the metal wire grid is arranged on one side of the photosensitive sensor, which is close to the liquid crystal layer, and the orthographic projection of the photosensitive sensor and the metal wire grid is at least positioned in the identification sub-pixel domain. The light path is opened to obtain the light sensitive amount, and the related sensing data can be calculated based on the light sensitive amount, so that the full screen can be realized based on the liquid crystal display panel without additionally arranging sensor firmware.
Description
Technical Field
The present invention relates to the field of microelectronics, and more particularly, to a liquid crystal display panel, a liquid crystal display and a driving method thereof.
Background
In the display field, the full-screen technology is the current key research and development direction. The first generation of full-screen technology mainly focuses on the fact that the size ratio of a screen is changed from 16:9 to 18:9 or more, the second generation of full-screen technology further compresses the upper, lower, left and right boundaries of the screen to maximize the visible area, but sensor firmware such as fingerprint identification, a camera and an infrared sensor is always arranged on the screen, and therefore the full-screen technology is difficult to achieve on a terminal.
Disclosure of Invention
The invention provides a liquid crystal display panel, a liquid crystal display and a driving method thereof, which can realize a full-screen.
In order to solve the technical problem, the invention provides a liquid crystal display panel, which comprises a color film substrate, an array substrate, a liquid crystal layer clamped between the array substrate and the color film substrate, an upper polarizer, a photosensitive sensor and a metal wire grid, wherein the upper polarizer is arranged on one side of the color film substrate, which is far away from the liquid crystal layer;
the color film substrate is provided with a light path opening allowing light to penetrate, an orthographic projection area of the light path opening on the liquid crystal display panel is an identification sub-pixel, and a position different from the identification sub-pixel on the liquid crystal display panel is a display sub-pixel;
the photosensitive sensor is arranged on one side of the array substrate, which is different from the liquid crystal layer, the metal wire grid is arranged on one side of the photosensitive sensor, which is close to the liquid crystal layer, and the orthographic projection of the photosensitive sensor and the metal wire grid is at least positioned in the identification sub-pixel domain.
Optionally, the light path opening is formed in a black photoresist of the color film substrate.
Optionally, the metal wire grid in the liquid crystal display panel is of a full-surface structure, and the metal wire grid is located between the liquid crystal layer and the array substrate or between the photosensitive sensor and the array substrate.
Optionally, the metal wire grid in the liquid crystal display panel is of a non-whole surface structure, and the liquid crystal display panel further includes a lower polarizer, where the lower polarizer is located on a side of the photosensor different from the array substrate, or located between the photosensor and the array substrate.
Optionally, the color film substrate has a plurality of light path openings, and the identification sub-pixels formed by the light path openings and the display sub-pixels are arranged in a staggered manner.
Optionally, the size of the optical path opening is smaller than the size of the identification sub-pixel.
Optionally, the size of the optical path opening is 1 micron to 100 microns.
Furthermore, the invention also provides a liquid crystal display, which comprises the liquid crystal display panel and the backlight module as 1 to 7, wherein the liquid crystal display panel is arranged in the light-emitting direction of the backlight module.
Further, the present invention provides a driving method for a liquid crystal display panel as above, characterized in that the driving method comprises:
the display sub-pixels are turned on or off by controlling the rotation of liquid crystal molecules in the liquid crystal layer, or/and the identification sub-pixels are turned on or off;
the photosensitive sensor detects the photosensitive quantity in a preset time period.
Optionally, the driving method includes:
the display sub-pixels are turned on and the identification sub-pixels are turned off by controlling the rotation of liquid crystal molecules in the liquid crystal layer, and the photosensitive sensor detects a first photosensitive quantity in a preset time period;
and the display sub-pixels are closed and the identification sub-pixels are opened by controlling the rotation of liquid crystal molecules in the liquid crystal layer, and the photosensitive sensor detects a second photosensitive quantity in a preset time period.
The invention provides a liquid crystal display panel, a liquid crystal display and a driving method thereof.A color film substrate of the liquid crystal display panel is provided with a light path opening, an area of orthographic projection of the light path opening on the liquid crystal display panel is an identification sub-pixel, a photosensitive sensor positioned in a display screen can acquire photosensitive quantity through the light path opening on the identification sub-pixel, and related sensing data outside the screen can be obtained by calculation based on the photosensitive quantity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first liquid crystal display panel according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a second lcd panel according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third LCD panel according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a fourth LCD panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fifth liquid crystal display panel according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a liquid crystal display according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a driving method of a first liquid crystal display panel according to an embodiment of the invention;
fig. 8 is a flowchart illustrating a driving method of a second lcd panel according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
The invention provides a liquid crystal display panel 10, please refer to fig. 1, which includes a color film substrate 1, an array substrate 2, a liquid crystal layer 3 sandwiched between the color film substrate 1 and the array substrate 2, an upper polarizer 4, a photosensitive sensor 5, and a metal wire grid 6. The upper polarizer 4 is arranged on one side of the color film substrate 1 away from the liquid crystal layer.
It should be noted that, the color film substrate 1 is provided with an optical path opening 7 allowing light to pass through, please refer to fig. 1, an area (an area indicated by a dotted line in fig. 1) of the liquid crystal display panel 10 where the optical path opening is orthographically projected is an identification sub-pixel a, a position (an area indicated by a dotted line in fig. 1) on the liquid crystal display panel different from the identification sub-pixel a is a display sub-pixel B, and it should be understood that the display sub-pixel B is a color layer on the color film substrate, including RGB, please refer to fig. 1.
It should be understood that the display panel in which the liquid crystal layer 3 is encapsulated has a plurality of display cells, and the display cells include display sub-pixels and identification sub-pixels. It should be further understood that the optical path opening on the color filter substrate 1 may be formed on the black photoresist of the color filter substrate 1.
The photosensitive sensor 5 is arranged on the side of the array substrate 2 different from the liquid crystal layer 3, and the orthographic projection of the photosensitive sensor 5 is at least positioned in the identification sub-pixel A.
The metal wire grid 6 is located at the side of the photosensor 5 close to the liquid crystal layer, for example as shown in fig. 1, i.e. the metal wire grid 6 is generally stacked above the photosensor 5, it is noted that the orthographic projection of the metal wire grid 6 is located at least within the identification sub-pixel a. The advantage of a metal wire grid is that it is a non-organic material that can be made into an LCD cell and is well suited for patterning.
In some examples, the orthographic projection of the metal wire grid only coincides with the orthographic projection of the photo sensor, see fig. 1, in which case the liquid crystal display panel may further include a lower polarizer 8. The lower polarizer 8 may be located at a side of the photosensor different from the array substrate, please refer to fig. 2; or between the photosensor and the array substrate, see fig. 3.
In other examples, if the metal wire grid 6 is a whole-surface structure, the metal wire grid 6 may function as a bottom polarizer, which may be located between the liquid crystal layer and the array substrate, as shown in fig. 4; in some other examples, the metal wire grid 6 may be located between the photosensor and the array substrate.
It should be understood that the full-surface structure means that the orthographic projection of the metal wire grid 6 coincides with the orthographic projections of the color filter substrate 1 and the array substrate 2, and at this time, the orthographic projection of the metal wire grid 6 completely covers the orthographic projection of the photosensor 5.
Note that the size of the optical path opening 7 is smaller than the size of the identification sub-pixel. The size of the opening of the optical path is 1 to 100 μm, preferably 10 to 30 μm.
Referring to fig. 5, the black photoresist of the color filter substrate 1 has a plurality of light path openings 7, and the identification sub-pixels a formed by the light path openings 7 are arranged in a staggered manner with the display sub-pixels B, as shown in fig. 5.
In the liquid crystal display panel provided by the invention, the light path opening forms a small-hole imaging light path, the pixel circuit can control the opening and closing of the light path opening by controlling liquid crystal molecules in the liquid crystal layer, the opening or closing of the identification sub-pixel and the opening or closing of the display sub-pixel are controlled, the photosensitive sensor at the orthographic projection position of the light path opening can detect the current photosensitive quantity, and convolution calculation can be further carried out based on the obtained current photosensitive quantity to obtain related sensing data.
In some other examples, the pixel circuit may turn on the display sub-pixel and turn off the identification sub-pixel by controlling the rotation of the liquid crystal molecules in the liquid crystal layer, and the light sensor may obtain the first light sensing amount. Then, the pixel circuit can control the rotation of liquid crystal molecules in the liquid crystal layer to turn off the display sub-pixels and turn on the identification sub-pixels, and the photosensitive sensor can acquire the first photosensitive quantity. The relevant sensing data can be obtained by performing certain calculation based on the first photosensitive quantity and the second photosensitive quantity.
The functions of sensor firmware such as fingerprint identification, a camera, a structured light sensor, a TOF sensor, a distance sensor, a light sensor and the like can be realized by calculating the light sensitivity detected by the light sensor in the liquid crystal display panel.
The invention provides a liquid crystal display panel, a liquid crystal display and a driving method thereof.A color film substrate of the liquid crystal display panel is provided with a light path opening, an area of orthographic projection of the light path opening on the liquid crystal display panel is an identification sub-pixel, a photosensitive sensor positioned in a display screen can acquire photosensitive quantity by identifying the light path opening on the sub-pixel, and related sensing data outside the screen can be obtained by calculation based on the photosensitive quantity.
The present invention further provides a liquid crystal display, which includes the aforementioned liquid crystal display panel 10 and the backlight module 20, please refer to fig. 6, wherein the liquid crystal display panel 10 is disposed in the light-emitting direction of the backlight module 20.
It should be understood that the light sensitive sensor in the liquid crystal display provided by the invention can acquire the light sensitive quantity by identifying the light path opening on the sub-pixel, and can calculate the related sensing data outside the screen based on the light sensitive quantity, so that the liquid crystal display based on the invention can realize the functions of sensor firmware such as fingerprint identification, a camera, a structured light sensor, a TOF sensor, a distance sensor, a light sensor and the like.
The present invention also provides a driving method of the liquid crystal display panel, which includes:
s701, the display sub-pixels are turned on or off by controlling the rotation of liquid crystal molecules in the liquid crystal layer, or/and the identification sub-pixels are turned on or off.
S702, the photosensitive sensor detects the photosensitive quantity in a preset time period.
It should be understood that the light path opening on the liquid crystal display panel forms a pinhole imaging light path, the pixel circuit of the display panel can control the opening and closing of the light path opening by controlling the liquid crystal molecules in the liquid crystal layer, the opening or closing of the identification sub-pixel and the opening or closing of the display sub-pixel, the photosensitive sensor at the orthographic projection position of the light path opening can detect the current photosensitive quantity, and convolution calculation can be further performed to obtain related sensing data based on the obtained current photosensitive quantity.
Referring to fig. 8, in some other examples, the related sensing data, such as fingerprint distribution information, may be obtained based on the light sensing amount obtained by the light sensing sensor twice, and after calculating the difference between the light sensing amounts obtained by the two times, performing the drying and corresponding enhancement processing. Under this example, the driving method includes:
s801, controlling the rotation of liquid crystal molecules in the liquid crystal layer to enable the display sub-pixels to be opened and the identification sub-pixels to be closed;
s802, detecting a first photosensitive quantity D1 in a preset time period by a photosensitive sensor;
s803, turning off the display sub-pixels and turning on the identification sub-pixels by controlling the rotation of liquid crystal molecules in the liquid crystal layer;
and S804, detecting a second photosensitive quantity D2 in a preset time period by the photosensitive sensor.
And S805, correcting the acquired photosensitive quantity to obtain D0-D2-D1, and then performing drying and corresponding enhancement processing to obtain related sensing data, such as fingerprint distribution information.
The invention provides a driving method of a liquid crystal display panel, wherein a color film substrate of the liquid crystal display panel is provided with an optical path opening, an orthographic projection area of the optical path opening on the liquid crystal display panel is an identification sub-pixel, a photosensitive sensor positioned in a display screen can acquire photosensitive quantity by identifying the optical path opening on the sub-pixel, and related sensing data outside the screen can be obtained by calculation based on the photosensitive quantity.
It should be noted that, for the sake of simplicity, the above-mentioned method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no acts or modules are necessarily required of the invention.
In the above embodiments, the description of each embodiment has its own emphasis, and parts of a certain embodiment that are not described in detail can be referred to related descriptions of other embodiments, and the above serial numbers of the embodiments of the present invention are merely for description and do not represent advantages and disadvantages of the embodiments, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention and as claimed in the claims, and these forms are within the protection of the present invention.
Claims (7)
1. The liquid crystal display panel is characterized by comprising a color film substrate, an array substrate, a liquid crystal layer clamped between the array substrate and the color film substrate, an upper polarizer, a photosensitive sensor and a metal wire grid, wherein the upper polarizer is arranged on one side of the color film substrate, which is far away from the liquid crystal layer;
the color film substrate is provided with a light path opening allowing light to penetrate, the light path opening is formed in a black photoresist of the color film substrate, an area of orthographic projection of the light path opening on the liquid crystal display panel is an identification sub-pixel, and a position, different from the identification sub-pixel, on the liquid crystal display panel is a display sub-pixel; the size of the light path opening is smaller than that of the identification sub-pixel, and the size of the light path opening is 10-30 micrometers;
the photosensitive sensor is arranged on one side of the array substrate, which is different from the liquid crystal layer, the metal wire grid is positioned on one side of the photosensitive sensor, which is close to the liquid crystal layer, and the orthographic projection of the photosensitive sensor and the metal wire grid is at least positioned in the identifier sub-pixel domain.
2. The liquid crystal display panel according to claim 1, wherein the metal wire grid in the liquid crystal display panel is of a full-surface structure, and the metal wire grid is located between the liquid crystal layer and the array substrate or between the photosensitive sensor and the array substrate.
3. The lcd panel of claim 1, wherein the metal wire grid in the lcd panel is in an irregular surface structure, and the lcd panel further comprises a lower polarizer, and the lower polarizer is located at a side of the photosensor opposite to the array substrate or between the photosensor and the array substrate.
4. The liquid crystal display panel according to any one of claims 1 to 3, wherein the color filter substrate has a plurality of optical path openings, and the identification sub-pixels formed by each of the optical path openings are arranged alternately with each of the display sub-pixels.
5. A liquid crystal display, comprising the liquid crystal display panel according to any one of claims 1 to 4 and a backlight module, wherein the liquid crystal display panel is disposed in a light-emitting direction of the backlight module.
6. A driving method based on the liquid crystal display panel according to any one of claims 1 to 4, wherein the driving method comprises:
controlling the rotation of liquid crystal molecules in the liquid crystal layer to enable the display sub-pixels to be switched on or off, or/and enabling the identification sub-pixels to be switched on or off;
the photosensitive sensor detects the photosensitive quantity in a preset time period.
7. The method for driving a liquid crystal display panel according to claim 6, wherein the method for driving includes:
the display sub-pixels are turned on and the identification sub-pixels are turned off by controlling the rotation of liquid crystal molecules in the liquid crystal layer, and the photosensitive sensor detects a first photosensitive quantity in a preset time period;
and controlling the rotation of liquid crystal molecules in the liquid crystal layer to close the display sub-pixels and open the identification sub-pixels, wherein the photosensitive sensor detects a second photosensitive quantity in a preset time period.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090004434A (en) * | 2007-06-29 | 2009-01-12 | 엘지디스플레이 주식회사 | Liquid crystal display device |
| CN101675375A (en) * | 2007-07-13 | 2010-03-17 | 夏普株式会社 | Liquid crystal display device and method for driving the same |
| CN105339834A (en) * | 2013-07-05 | 2016-02-17 | 凸版印刷株式会社 | Liquid crystal display device |
| CN106773229B (en) * | 2017-03-10 | 2018-11-09 | 京东方科技集团股份有限公司 | A kind of fingerprint recognition display device and its driving method |
| CN110060651A (en) * | 2019-06-06 | 2019-07-26 | 合肥京东方光电科技有限公司 | A kind of display panel, display device and its driving method |
-
2019
- 2019-10-25 CN CN201911024016.5A patent/CN110716337B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090004434A (en) * | 2007-06-29 | 2009-01-12 | 엘지디스플레이 주식회사 | Liquid crystal display device |
| CN101675375A (en) * | 2007-07-13 | 2010-03-17 | 夏普株式会社 | Liquid crystal display device and method for driving the same |
| CN105339834A (en) * | 2013-07-05 | 2016-02-17 | 凸版印刷株式会社 | Liquid crystal display device |
| CN106773229B (en) * | 2017-03-10 | 2018-11-09 | 京东方科技集团股份有限公司 | A kind of fingerprint recognition display device and its driving method |
| CN110060651A (en) * | 2019-06-06 | 2019-07-26 | 合肥京东方光电科技有限公司 | A kind of display panel, display device and its driving method |
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