CN106773163B - Liquid crystal display panel and liquid crystal display - Google Patents
Liquid crystal display panel and liquid crystal display Download PDFInfo
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- CN106773163B CN106773163B CN201611184176.2A CN201611184176A CN106773163B CN 106773163 B CN106773163 B CN 106773163B CN 201611184176 A CN201611184176 A CN 201611184176A CN 106773163 B CN106773163 B CN 106773163B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 53
- 239000000758 substrate Substances 0.000 claims abstract description 71
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 239000004065 semiconductor Substances 0.000 claims abstract description 20
- 239000011159 matrix material Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000003238 somatosensory effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
-
- 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
-
- 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
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Liquid Crystal (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
Abstract
The invention provides a liquid crystal display panel and a liquid crystal display, wherein the liquid crystal display panel comprises an array substrate, a color film substrate and liquid crystal arranged between the array substrate and the color film substrate; the array substrate includes: the display device comprises a first substrate, a display TFT and an infrared detection TFT; the color film substrate comprises a second substrate, an ITO electrode layer, a black matrix, a micro-lens array and a gasket; when the array substrate and the color film substrate are in box-to-box connection, the micro lens array is located at a corresponding position above the semiconductor active layer region of the infrared detection TFT. The method solves the problems that in the prior art, the somatosensory recognition needs to be provided with professional somatosensory equipment, so that the somatosensory recognition is expensive in cost and cannot be integrated with displays such as mobile phones and televisions.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of liquid crystal panels, in particular to a liquid crystal display panel and a liquid crystal display.
[ background of the invention ]
The motion sensing technology enables people to directly use limb actions to interact with surrounding devices or environments without using any complex control equipment. The motion sensing technology has very important application prospects in the fields of 3D virtual reality, space mice, game handles, motion monitoring, health medical care and the like. However, the motion sensing recognition usually needs to be equipped with a professional motion sensing device, which is expensive and cannot be integrated with a display such as a mobile phone and a television.
In addition, visual display technology has advanced so much that visual displays are generally thin and flat with high pixel density. Sensors associated with display-based devices typically fall into the side or back of the display device housing, as well as into the layout of the perimeter of the display, as the layout in front of the display can obscure the visibility of images presented on the display. For some types of sensors, such as sensor arrays including touch sensors and fingerprint sensors, the display and sensor array need to occupy the same space. This problem is urgently needed to be solved.
[ summary of the invention ]
The invention aims to provide a liquid crystal display panel and a liquid crystal display, and aims to solve the problems that in the prior art, body sensing identification needs to be provided with professional body sensing equipment, so that the body sensing identification is expensive in cost and cannot be integrated with displays such as mobile phones and televisions.
The technical scheme of the invention is as follows:
a liquid crystal display panel comprises an array substrate, a color film substrate and liquid crystal arranged between the array substrate and the color film substrate;
the array substrate includes:
a first substrate;
a display TFT provided on the first substrate for displaying data images;
the infrared detection TFT is arranged on the first substrate, is adjacent to the display TFT and is used for detecting the infrared image of an object in front of the liquid crystal display panel;
and the first grid electrode for driving the infrared detection TFT and the second grid electrode for driving the display TFT are mutually independent.
Preferably, the color filter substrate includes: a second substrate;
the ITO electrode layer is arranged on the second substrate;
the black matrix is arranged on the ITO electrode layer;
the light condensation structure is arranged on the black matrix and used for focusing the infrared rays sensed by the light condensation structure on the semiconductor active layer of the infrared detection TFT;
when the array substrate and the color film substrate are in box-to-box connection, the position area where the light condensation structure is located and the position area of the semiconductor active layer of the infrared detection TFT are in up-and-down correspondence.
Preferably, the light-gathering structure is a microlens array, and the microlens array is composed of a plurality of microlenses arranged regularly.
Preferably, each of the microlenses has a convex lens shape in outer shape.
Preferably, the color film substrate further includes a liner, the liner is disposed on the black matrix and used for supporting the array substrate and the color film substrate, and the light-gathering structure and the liner are made of the same material.
Preferably, the light-gathering structure and the gasket are made of resin materials with the function of gathering infrared rays into beams.
Preferably, the light-gathering structure and the pad are manufactured in the same manufacturing step.
Preferably, the black matrix is made of a material that is transparent to infrared light.
Preferably, the drain electrode of the infrared detection TFT is connected to the drain electrode of the display TFT.
A liquid crystal display comprising the liquid crystal display panel of any one of the above.
The invention has the beneficial effects that:
according to the liquid crystal display panel and the liquid crystal display, the infrared detection TFT is arranged on the array substrate, infrared light is gathered on the semiconductor active layer of the infrared detection TFT, the infrared detection TFT can detect the infrared image of an object in front of the liquid crystal display panel, and the problems that in the prior art, the somatosensory identification needs to be provided with a special somatosensory device, the somatosensory identification is expensive in cost and cannot be integrated with displays such as a mobile phone and a television are solved.
[ description of the drawings ]
FIG. 1 is a schematic partial cross-sectional view illustrating an array substrate of an LCD panel according to an embodiment of the present invention;
fig. 2 is a schematic partial cross-sectional view of a color film substrate of a liquid crystal display panel according to an embodiment of the invention;
FIG. 3 is a cross-sectional view of an overall structure of an LCD panel according to an embodiment of the present invention;
FIG. 4 is a top view of an overall structure of a pixel of an LCD panel according to an embodiment of the present invention;
FIG. 5 is a circuit diagram illustrating the operation principle of a pixel of an LCD panel according to an embodiment of the present invention;
fig. 6 is a circuit timing diagram illustrating an operation principle of a pixel of an lcd panel according to an embodiment of the present invention.
[ detailed description ] embodiments
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc. refer to directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
Example one
Referring to fig. 1 to 6, fig. 1 is a partial cross-sectional view of an array substrate of a liquid crystal display panel of the present embodiment.
Fig. 2 is a schematic partial cross-sectional view of a color film substrate of a liquid crystal display panel according to the embodiment.
Fig. 3 is a schematic cross-sectional view illustrating an overall structure of a liquid crystal display panel according to the present embodiment.
Fig. 4 is a top view of the entire structure of a pixel of the lcd panel of this embodiment.
Fig. 5 is a circuit diagram illustrating an operating principle of a pixel of the liquid crystal display panel according to the embodiment.
Fig. 6 is a circuit timing diagram illustrating the operation principle of one pixel of the lcd panel according to the present embodiment.
As can be seen from fig. 1, 2, 3 and 4, the liquid crystal display panel of the present invention has an infrared image detection function, and includes an array substrate, a color filter substrate, and a liquid crystal 11 disposed between the array substrate and the color filter substrate.
Wherein, the array substrate includes:
the first substrate 1 is preferably a glass substrate.
And a display TFT30 disposed on the first substrate 1 for displaying a data image, the display TFT30 including a second gate electrode 3, a second source electrode 9, and a second drain electrode, and a second semiconductor active layer 6 connecting the second source electrode 9 and the second drain electrode. Wherein the second source electrode 9 is connected to the pixel electrode 50, as shown in fig. 4.
And the infrared detection TFT20 is arranged on the first substrate 1, is adjacent to the display TFT30 and is used for detecting an infrared image of an object in front of the liquid crystal display panel. The infrared detecting TFT20 includes a first gate electrode 2, a first source electrode 7, and a first drain electrode, and a first semiconductor active layer 5 connecting the first source electrode 7 and the first drain electrode.
Wherein the first gate 2 driving the infrared detection TFT20 and the second gate 3 driving the display TFT30 are independent of each other. The first gate electrode 2 and the second gate electrode 3 are provided with a gate insulating layer 4 thereon, and the first semiconductor active layer 5 and the second semiconductor active layer 6 are provided on the gate insulating layer 4.
In this embodiment, the first drain of the infrared detecting TFT20 is connected to the second drain of the display TFT30 to form the common drain 8, which saves the manufacturing steps of the drain.
Wherein, the various membrane base plate includes:
the second substrate 16 is preferably a glass substrate.
An ITO electrode layer 15 provided on the second substrate 16;
a black matrix 14 provided on the ITO electrode layer 15;
and a light condensing structure provided on the black matrix 14 for focusing the infrared rays 17 sensed thereby onto the semiconductor active layer of the infrared detecting TFT20, i.e., onto the first semiconductor active layer 5.
In the present embodiment, the light-focusing structure is preferably a microlens array, which is composed of a plurality of microlenses 12 arranged in a regular manner.
In this embodiment, the color filter substrate further includes a spacer 13, and the spacer 13 is disposed on the black matrix 14 and is used for supporting the array substrate and the color filter substrate;
when the array substrate and the color film substrate are paired, the position area where the microlens array is located and the position area of the first semiconductor active layer 5 are vertically corresponding to each other, the array substrate and the color film substrate are paired through frame glue 10, and the gasket 13 is located at the corresponding position on the surface of the second semiconductor active layer 6.
In this embodiment, each of the microlenses 12 has a convex lens shape, which is most advantageous for focusing the infrared light rays 17 into a beam.
In the present embodiment, the microlens array and the pad 13 are made of the same material, so that the microlens array and the pad 13 can be made through the same manufacturing step, that is, the microlens array and the pad 13 can be made through patterning once by depositing a layer of material.
In this embodiment, the material for forming the microlenses 12 and the spacers 13 is a resin material having the function of condensing the infrared rays 17 into a beam.
In the present embodiment, the microlens array and the pad 13 are manufactured in the same manufacturing step, so that the manufacturing process is saved, and manpower and material resources are saved.
In the present embodiment, the black matrix 14 is made of a material that can transmit infrared light 17, which ensures that the infrared light 17 can be transmitted through the black matrix 14 and enter the first semiconductor active layer 5.
In this embodiment, the material for manufacturing the black matrix 14 is preferably a black photoresist material. The black photoresist material can block visible light well and has a high transmittance for infrared light 17.
In this embodiment, on the array substrate, the first gate electrodes 2 and the second gate electrodes 3 are sequentially and alternately arranged along a direction of a data line, and the gate driver sequentially drives the first gate electrodes 2 and the second gate electrodes 3.
In this embodiment, the data line connected to the infrared detection TFT20 and the data line connected to the display TFT30 are respectively connected to the same data processor.
The principle of the invention is that generally speaking, a hydrogenated amorphous silicon film compatible with the liquid crystal display panel process is used as an infrared detection TFT20, the infrared detection TFT20 is integrated into a pixel display unit of the liquid crystal display panel, an infrared image is obtained through an infrared detection TFT20, and an image processing algorithm is further combined, so that the liquid crystal display panel has a function of somatosensory recognition.
Specifically, when the infrared light 17 is focused to be a beam on the first semiconductor active layer 5 of the infrared detection TFT20, the resistance of the first semiconductor active layer 5 becomes small, the infrared detection TFT20 is turned on when the first gate 2 is turned on, and the current passing through the infrared detection TFT20 changes, that is, the current becomes large, and the change of the current is sensed by the corresponding image processor, and the image processor processes the change of the current and converts the change of the current into an image signal. When the first gate 2 of the infrared detection TFT20 is turned off, the second gate 3 of the display TFT30 is turned on, and the pixel capacitor is charged, and a pre-displayed image is input.
Specifically, as shown in fig. 5 and fig. 6, fig. 5 is a circuit diagram illustrating an operating principle of a pixel of a liquid crystal display panel of the present embodiment, and fig. 6 is a circuit timing diagram illustrating an operating principle of a pixel of a liquid crystal display panel of the present embodiment. As can be seen from fig. 5, the adjacent one of the infrared detecting TFT20 and one of the display TFTs 30 are connected to the infrared detecting circuit 40 through the Data line Data connected thereto, and are sequentially turned on and off in time series through different Gate lines Gate. As can be seen from fig. 6, when the infrared detection TFT20 is turned on, the display TFT30 is in an off state. On the contrary, when the display TFT30 is turned on, the infrared detection TFT20 is in an off state.
According to the liquid crystal display panel, the microlens array is arranged on the color film substrate of the liquid crystal display panel, the infrared detection TFT20 is arranged on the array substrate, and the microlens array collects infrared rays 17 on the semiconductor active layer of the infrared detection TFT20, so that the infrared detection TFT20 can detect infrared images of objects in front of the liquid crystal display panel, and the problems that in the prior art, body sensing identification needs to be provided with professional body sensing equipment, the body sensing identification is expensive in cost and cannot be integrated with displays such as mobile phones and televisions and the like are solved.
Example two
The present embodiment provides a liquid crystal display including the liquid crystal display panel according to the first embodiment, which has been described in detail in the first embodiment, and the discussion thereof is not repeated.
According to the liquid crystal display, the microlens array is arranged on the color film substrate of the liquid crystal display panel, the infrared detection TFT20 is arranged on the array substrate, and the infrared ray 17 is gathered on the semiconductor active layer of the infrared detection TFT20 by the microlens array, so that the infrared detection TFT20 can detect the infrared image of an object in front of the liquid crystal display panel, and the problems that in the prior art, body sensing identification needs to be provided with professional body sensing equipment, the body sensing identification is expensive in cost and cannot be integrated with displays such as mobile phones and televisions and the like are solved.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (9)
1. The liquid crystal display panel is characterized by comprising an array substrate, a color film substrate and liquid crystal arranged between the array substrate and the color film substrate;
the array substrate includes:
a first substrate;
a display TFT provided on the first substrate for displaying data images;
the infrared detection TFT is arranged on the first substrate, is adjacent to the display TFT and is used for detecting the infrared image of an object in front of the liquid crystal display panel;
the first grid electrode for driving the infrared detection TFT and the second grid electrode for driving the display TFT are mutually independent;
the color film substrate comprises: a second substrate;
the ITO electrode layer is arranged on the second substrate;
the black matrix is arranged on the ITO electrode layer;
the light condensation structure is arranged on the black matrix and used for focusing the infrared rays sensed by the light condensation structure on the semiconductor active layer of the infrared detection TFT;
when the array substrate and the color film substrate are in box-to-box connection, the position area where the light condensation structure is located and the position area of the semiconductor active layer of the infrared detection TFT are in up-and-down correspondence.
2. The liquid crystal display panel of claim 1, wherein the light converging structure is a micro lens array, and the micro lens array is composed of a plurality of micro lenses arranged in a regular manner.
3. The liquid crystal display panel according to claim 2, wherein each of the microlenses has a convex lens shape in outer shape.
4. The liquid crystal display panel according to claim 1, wherein the color filter substrate further comprises a spacer, the spacer is disposed on the black matrix and used for supporting the array substrate and the color filter substrate, and the light-gathering structure and the spacer are made of the same material.
5. The liquid crystal display panel according to claim 4, wherein the light collecting structures and the spacers are made of resin materials having an effect of collecting and bundling infrared rays.
6. The LCD panel of claim 4, wherein the light gathering structure and the gasket are fabricated in the same fabrication step.
7. The liquid crystal display panel according to claim 1, wherein the black matrix is made of a material transparent to infrared rays.
8. The liquid crystal display panel according to claim 1, wherein a drain of the infrared detection TFT is connected to a drain of the display TFT.
9. A liquid crystal display comprising the liquid crystal display panel according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184176.2A CN106773163B (en) | 2016-12-20 | 2016-12-20 | Liquid crystal display panel and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184176.2A CN106773163B (en) | 2016-12-20 | 2016-12-20 | Liquid crystal display panel and liquid crystal display |
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| Publication Number | Publication Date |
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| CN106773163A CN106773163A (en) | 2017-05-31 |
| CN106773163B true CN106773163B (en) | 2020-10-16 |
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| CN201611184176.2A Active CN106773163B (en) | 2016-12-20 | 2016-12-20 | Liquid crystal display panel and liquid crystal display |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109427244B (en) * | 2017-08-30 | 2019-11-08 | 上海耕岩智能科技有限公司 | A kind of operating method and device of physiological health detection |
| CN107479760B (en) | 2017-09-22 | 2021-09-24 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof, display panel and display system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116711A (en) * | 1993-12-16 | 1996-02-14 | 欧姆龙株式会社 | Base sheet of micro lens and liquid crystal displaying element and liquid crystal projecting apparatus |
| JP2004246455A (en) * | 2003-02-12 | 2004-09-02 | Alpine Electronics Inc | Operation screen display device |
| CN101153972A (en) * | 2006-09-26 | 2008-04-02 | Lg.菲利浦Lcd株式会社 | Display with infrared backlight source and multi-touch sensing function |
| CN101266346A (en) * | 2007-03-13 | 2008-09-17 | 瀚宇彩晶股份有限公司 | Light sensitive element and LCD device applying same |
| CN101963716A (en) * | 2010-09-10 | 2011-02-02 | 钰瀚科技股份有限公司 | Liquid crystal display |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI356333B (en) * | 2008-03-21 | 2012-01-11 | Chimei Innolux Corp | Liquid crystal display and remote controlling syst |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116711A (en) * | 1993-12-16 | 1996-02-14 | 欧姆龙株式会社 | Base sheet of micro lens and liquid crystal displaying element and liquid crystal projecting apparatus |
| JP2004246455A (en) * | 2003-02-12 | 2004-09-02 | Alpine Electronics Inc | Operation screen display device |
| CN101153972A (en) * | 2006-09-26 | 2008-04-02 | Lg.菲利浦Lcd株式会社 | Display with infrared backlight source and multi-touch sensing function |
| CN101266346A (en) * | 2007-03-13 | 2008-09-17 | 瀚宇彩晶股份有限公司 | Light sensitive element and LCD device applying same |
| CN101963716A (en) * | 2010-09-10 | 2011-02-02 | 钰瀚科技股份有限公司 | Liquid crystal display |
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| CN106773163A (en) | 2017-05-31 |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL China Star Optoelectronics Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |