CN109752889B - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
- Publication number
- CN109752889B CN109752889B CN201910234865.7A CN201910234865A CN109752889B CN 109752889 B CN109752889 B CN 109752889B CN 201910234865 A CN201910234865 A CN 201910234865A CN 109752889 B CN109752889 B CN 109752889B
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- liquid crystal
- substrate
- frame glue
- alignment film
- display panel
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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
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
-
- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
Abstract
The invention provides a liquid crystal display panel. The liquid crystal display panel comprises an upper substrate and a lower substrate which are oppositely arranged, a first alignment film arranged on the upper substrate and facing to one side of the lower substrate, a second alignment film arranged on the lower substrate and facing to one side of the upper substrate, a liquid crystal layer arranged between the upper substrate and the lower substrate, and frame glue arranged between the upper substrate and the lower substrate and surrounding the liquid crystal layer; the frame glue comprises a first frame glue close to the liquid crystal layer, a second frame glue far away from the liquid crystal layer and a retaining wall arranged between the first frame glue and the second frame glue; the first alignment film and the second alignment film are both in contact with the first frame glue and are blocked by the retaining wall to prevent the first alignment film and the second alignment film from diffusing to the outside of the frame glue, so that a narrow frame of the liquid crystal display panel can be realized, the alignment films are prevented from absorbing water vapor, and poor display of the liquid crystal display panel in a high-humidity environment is avoided.
Description
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal display panel.
Background
Thin Film Transistors (TFTs) are the main driving elements in current Liquid Crystal Displays (LCDs) and Active Matrix Organic electroluminescent displays (AMOLEDs), and are directly related to the Display performance of flat panel displays.
Most of the existing liquid crystal displays in the market are backlight liquid crystal displays (lcds), which include a liquid crystal display panel and a backlight module (backlight module). The liquid crystal display panel operates on the principle that liquid crystal molecules are poured between a Thin Film Transistor Array Substrate (TFT Array Substrate) and a Color Filter (CF) Substrate, pixel voltage and common voltage are applied to the two substrates, and the rotation direction of the liquid crystal molecules is controlled by an electric field formed between the pixel voltage and the common voltage, so that light of a backlight module is transmitted out to generate a picture. The liquid crystal display panel forming process generally includes: front Array (Array) process (thin film, yellow light, etching and stripping), middle Cell (TFT substrate and CF substrate) process and back module assembly process (driver IC and printed circuit board pressing). Wherein, the front-stage Array process mainly forms a TFT substrate to control the movement of liquid crystal molecules; the middle Cell process is mainly to add liquid crystal between the TFT substrate and the CF substrate; the back module assembly process mainly drives the integration of IC pressing and printed circuit board, and further drives the liquid crystal molecules to rotate and display images.
With the development of display devices, the frame requirements for display devices become narrower, and especially in the aspect of commercial display, larger display screens are required, and the screens are spliced to form a display wall, which requires that the distance between the screens is reduced as much as possible, so that the frame is required to be narrower. At present, Polyimide (PI) is adopted in most LCD screens as a liquid crystal alignment film, a part of the PI film flows outwards in the coating process, the flowing PI and frame glue can be overlapped along with the narrowing of a frame, and if the PI flows outwards out of the frame glue, the PI absorbs water, so that poor display of the display equipment can be caused in a high-humidity environment; therefore, the PI must be controlled not to diffuse out of the sealant, and a retaining wall for preventing the outflow of the PI needs to be added. If the retaining wall is designed between the display (AA) area and the frame glue, the PI reflows after encountering the retaining wall, so that a PI reflowing area is formed at the edge of the display area, and the peripheral display is poor.
Disclosure of Invention
The invention aims to provide a liquid crystal display panel, which can realize a narrow frame of the liquid crystal display panel and avoid poor display of the liquid crystal display panel in a high-humidity environment.
To achieve the above object, the present invention provides a liquid crystal display panel including: the liquid crystal display panel comprises an upper substrate, a lower substrate, a first alignment film, a second alignment film, a liquid crystal layer and a frame glue, wherein the upper substrate and the lower substrate are oppositely arranged, the first alignment film is arranged on the upper surface of the upper substrate and on one side of the lower substrate, the second alignment film is arranged on the lower surface of the lower substrate and on one side of the upper substrate, the liquid crystal layer is arranged between the upper substrate and the lower substrate, and the frame glue is;
the frame glue comprises a first frame glue close to the liquid crystal layer, a second frame glue far away from the liquid crystal layer and a retaining wall arranged between the first frame glue and the second frame glue;
the first alignment film and the second alignment film are both in contact with the first frame glue and are blocked by the retaining wall so as to prevent the first alignment film and the second alignment film from diffusing to the outside of the frame glue.
The upper substrate comprises a first substrate base plate and a common electrode arranged on the first substrate base plate; the lower substrate comprises a second substrate base plate, a TFT layer arranged on the second substrate base plate and a pixel electrode arranged on the TFT layer.
A plurality of conductive particles are arranged in the second frame glue; the conductive particles are used for conducting the pixel electrode and the common electrode.
The conductive particles are gold balls.
And a plurality of heightening structures are arranged in the region of the upper substrate opposite to the second frame glue.
The upper substrate further comprises a color resistance layer arranged between the first substrate and the common electrode, and the heightening structure is positioned in a region, opposite to the second frame glue, in the color resistance layer.
And a plurality of heightening structures are arranged in the area of the lower substrate opposite to the second frame glue.
The lower substrate further comprises a color resistance layer arranged between the TFT layer and the pixel electrode, and the padding structure is positioned in the region, opposite to the second frame glue, in the color resistance layer.
The material of the retaining wall is photoresistance.
The invention has the beneficial effects that: the liquid crystal display panel comprises an upper substrate, a lower substrate, a first alignment film, a second alignment film, a liquid crystal layer and a frame glue, wherein the upper substrate and the lower substrate are oppositely arranged, the first alignment film is arranged on the upper surface of the upper substrate and faces one side of the lower substrate, the second alignment film is arranged on the lower surface of the lower substrate and faces one side of the upper substrate, the liquid crystal layer is arranged between the upper substrate and the lower substrate, and the frame glue is arranged between the upper substrate and the; the frame glue comprises a first frame glue close to the liquid crystal layer, a second frame glue far away from the liquid crystal layer and a retaining wall arranged between the first frame glue and the second frame glue; the first alignment film and the second alignment film are both in contact with the first frame glue and are blocked by the retaining wall to prevent the first alignment film and the second alignment film from diffusing to the outside of the frame glue, so that a narrow frame of the liquid crystal display panel can be realized, the alignment film is prevented from absorbing water vapor, poor display of the liquid crystal display panel in a high-humidity environment is avoided, in addition, the alignment film generates backflow after meeting the retaining wall, and the backflow area can be formed on the first frame glue and cannot be formed in the display area, and poor display is avoided.
Drawings
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
In the drawings, there is shown in the drawings,
FIG. 1 is a top view of a liquid crystal display panel according to the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a cross-sectional view of one embodiment at B-B of FIG. 1;
FIG. 4 is a cross-sectional view of another embodiment at B-B of FIG. 1.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 1, the present invention provides a liquid crystal display panel, including: the liquid crystal display panel comprises an upper substrate 10 and a lower substrate 20 which are oppositely arranged, a first alignment film 30 arranged on the upper substrate 10 and facing the lower substrate 20, a second alignment film 40 arranged on the lower substrate 20 and facing the upper substrate 10, a liquid crystal layer 50 arranged between the upper substrate 10 and the lower substrate 20, and frame glue 60 arranged between the upper substrate 10 and the lower substrate 20 and surrounding the liquid crystal layer 50;
the sealant 60 includes a first sealant 61 close to the liquid crystal layer 50, a second sealant 62 far away from the liquid crystal layer 50, and a retaining wall 63 disposed between the first sealant 61 and the second sealant 62;
the first alignment film 30 and the second alignment film 40 both contact the first sealant 61 and are blocked by the retaining wall 63 to prevent the first alignment film 30 and the second alignment film 40 from diffusing to the outside of the sealant 60.
It should be noted that, in the present invention, the retaining wall 63 is disposed between the first sealant 61 and the second sealant 62, that is, the retaining wall 63 is disposed inside the sealant 60, so that the first alignment film 30 and the second alignment film 40 are both in contact with the first sealant 61, that is, the alignment films are partially overlapped with the sealant 60, thereby realizing a narrow frame of the liquid crystal display panel, and the first alignment film 30 and the second alignment film 40 are both blocked by the retaining wall 63 to prevent the first alignment film 30 and the second alignment film 40 from diffusing to the outside of the sealant 60, so as to prevent the alignment films from absorbing water vapor, and prevent the liquid crystal display panel from generating poor display in a high humidity environment. In addition, the alignment film generates a reflow after encountering the dam, and the reflow region is formed on the first sealant 61 and is not formed in the display region, thereby avoiding poor display.
Specifically, referring to fig. 2, the upper substrate 10 includes a first substrate 11 and a common electrode 12 disposed on the first substrate 11; the lower substrate 20 includes a second substrate 21, a TFT layer 22 provided on the second substrate 21, and a pixel electrode 23 provided on the TFT layer 22.
Specifically, the liquid crystal display panel of the present invention adopts a PSVA (polymer stabilized vertical alignment) technology, and therefore the second sealant 62 has a plurality of conductive particles 621 therein; the conductive particles 621 are used to connect the pixel electrode 23 and the common electrode 12.
Specifically, the conductive particles 621 are gold balls.
Specifically, the material of the retaining wall 63 is a photoresist.
Specifically, due to the existence of the retaining wall 63, in order to avoid the cell thickness of the liquid crystal display panel from being raised, and therefore the size of the conductive particles 621 is small, in order to ensure that the pixel electrode 23 and the common electrode 12 can be smoothly conducted, the present invention further provides a plurality of raised structures 70 in the region of the upper substrate 10 opposite to the second sealant 62 or a plurality of raised structures 70 in the region of the lower substrate 20 opposite to the second sealant 62.
Further, referring to fig. 3, the upper substrate 10 further includes a color resistance layer 13 disposed between the first substrate 11 and the common electrode 12, and the padding structure 70 is located in a region of the color resistance layer 13 opposite to the second sealant 62.
Further, referring to fig. 4, the lower substrate 20 further includes a color resistance layer 13 disposed between the TFT layer 22 and the pixel electrode 23, and the padding structure 70 is located in a region of the color resistance layer 13 opposite to the second sealant 62.
In summary, the liquid crystal display panel of the present invention includes an upper substrate and a lower substrate disposed opposite to each other, a first alignment film disposed on the upper substrate and facing one side of the lower substrate, a second alignment film disposed on the lower substrate and facing one side of the upper substrate, a liquid crystal layer disposed between the upper substrate and the lower substrate, and a sealant disposed between the upper substrate and the lower substrate and surrounding the liquid crystal layer; the frame glue comprises a first frame glue close to the liquid crystal layer, a second frame glue far away from the liquid crystal layer and a retaining wall arranged between the first frame glue and the second frame glue; the first alignment film and the second alignment film are both in contact with the first frame glue and are blocked by the retaining wall to prevent the first alignment film and the second alignment film from diffusing to the outside of the frame glue, so that a narrow frame of the liquid crystal display panel can be realized, the alignment film is prevented from absorbing water vapor, poor display of the liquid crystal display panel in a high-humidity environment is avoided, in addition, the alignment film generates backflow after meeting the retaining wall, and the backflow area can be formed on the first frame glue and cannot be formed in the display area, and poor display is avoided.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.
Claims (8)
1. A liquid crystal display panel, comprising: the liquid crystal display panel comprises an upper substrate (10) and a lower substrate (20) which are oppositely arranged, a first alignment film (30) which is arranged on the upper surface of the upper substrate (10) and on one side of the lower substrate (20), a second alignment film (40) which is arranged on the upper surface of the lower substrate (20) and on one side of the upper substrate (10), a liquid crystal layer (50) which is arranged between the upper substrate (10) and the lower substrate (20), and frame glue (60) which is arranged between the upper substrate (10) and the lower substrate (20) and surrounds the liquid crystal layer (50);
the frame glue (60) comprises a first frame glue (61) close to the liquid crystal layer (50), a second frame glue (62) far away from the liquid crystal layer (50) and a retaining wall (63) arranged between the first frame glue (61) and the second frame glue (62);
the first alignment film (30) and the second alignment film (40) are both in contact with the first frame glue (61) and are blocked by the retaining wall (63) to prevent the first alignment film (30) and the second alignment film (40) from diffusing to the outside of the frame glue (60);
the upper substrate (10) comprises a first substrate (11) and a common electrode (12) arranged on the first substrate (11); the lower substrate (20) comprises a second substrate (21), a TFT layer (22) arranged on the second substrate (21) and a pixel electrode (23) arranged on the TFT layer (22);
a plurality of conductive particles (621) are arranged in the second frame glue (62); the conductive particles (621) are used for conducting the pixel electrode (23) and the common electrode (12);
a plurality of padding structures (70) are arranged in the region, opposite to the second frame glue (62), of the upper substrate (10).
2. The liquid crystal display panel of claim 1, wherein the conductive particles (621) are gold balls.
3. The lcd panel of claim 1, wherein the upper substrate (10) further comprises a color-resist layer (13) disposed between the first substrate (11) and the common electrode (12), and the padding structure (70) is located in a region of the color-resist layer (13) opposite to the second sealant (62).
4. The liquid crystal display panel according to claim 1, wherein the material of the dam (63) is a photoresist.
5. A liquid crystal display panel, comprising: the liquid crystal display panel comprises an upper substrate (10) and a lower substrate (20) which are oppositely arranged, a first alignment film (30) which is arranged on the upper surface of the upper substrate (10) and on one side of the lower substrate (20), a second alignment film (40) which is arranged on the upper surface of the lower substrate (20) and on one side of the upper substrate (10), a liquid crystal layer (50) which is arranged between the upper substrate (10) and the lower substrate (20), and frame glue (60) which is arranged between the upper substrate (10) and the lower substrate (20) and surrounds the liquid crystal layer (50);
the frame glue (60) comprises a first frame glue (61) close to the liquid crystal layer (50), a second frame glue (62) far away from the liquid crystal layer (50) and a retaining wall (63) arranged between the first frame glue (61) and the second frame glue (62);
the first alignment film (30) and the second alignment film (40) are both in contact with the first frame glue (61) and are blocked by the retaining wall (63) to prevent the first alignment film (30) and the second alignment film (40) from diffusing to the outside of the frame glue (60);
the upper substrate (10) comprises a first substrate (11) and a common electrode (12) arranged on the first substrate (11); the lower substrate (20) comprises a second substrate (21), a TFT layer (22) arranged on the second substrate (21) and a pixel electrode (23) arranged on the TFT layer (22);
a plurality of conductive particles (621) are arranged in the second frame glue (62); the conductive particles (621) are used for conducting the pixel electrode (23) and the common electrode (12); and a plurality of heightening structures (70) are arranged in the area of the lower substrate (20) opposite to the second frame glue (62).
6. The LCD panel of claim 5, wherein the lower substrate (20) further comprises a color-resist layer (13) disposed between the TFT layer (22) and the pixel electrode (23), and the raised structure (70) is located in a region of the color-resist layer (13) opposite to the second sealant (62).
7. The liquid crystal display panel according to claim 5, wherein the material of the dam (63) is a photoresist.
8. The liquid crystal display panel of claim 5, wherein the conductive particles (621) are gold balls.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234865.7A CN109752889B (en) | 2019-03-26 | 2019-03-26 | Liquid crystal display panel |
| PCT/CN2019/083109 WO2020191834A1 (en) | 2019-03-26 | 2019-04-17 | Liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234865.7A CN109752889B (en) | 2019-03-26 | 2019-03-26 | Liquid crystal display panel |
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| Publication Number | Publication Date |
|---|---|
| CN109752889A CN109752889A (en) | 2019-05-14 |
| CN109752889B true CN109752889B (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910234865.7A Active CN109752889B (en) | 2019-03-26 | 2019-03-26 | Liquid crystal display panel |
Country Status (2)
| Country | Link |
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| CN (1) | CN109752889B (en) |
| WO (1) | WO2020191834A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI721688B (en) * | 2019-12-06 | 2021-03-11 | 凌巨科技股份有限公司 | A liquid crystal double-frame adhesive device |
| CN111142288B (en) * | 2020-02-25 | 2021-06-01 | Tcl华星光电技术有限公司 | Liquid crystal display device having a plurality of pixel electrodes |
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| JP4480443B2 (en) * | 2004-03-31 | 2010-06-16 | 富士通株式会社 | Liquid crystal display device and method of manufacturing liquid crystal display device |
| JP2006285001A (en) * | 2005-04-01 | 2006-10-19 | Seiko Epson Corp | Sealing structure, liquid crystal device, its manufacturing method and projector |
| JP2007240811A (en) * | 2006-03-08 | 2007-09-20 | Seiko Epson Corp | Electro-optical device, manufacturing method of same, and electronic equipment |
| JP2007248832A (en) * | 2006-03-16 | 2007-09-27 | Seiko Epson Corp | Liquid crystal device and its manufacturing method, and electronic equipment |
| CN202331403U (en) * | 2011-10-27 | 2012-07-11 | 傲达科技（香港）有限公司 | Liquid crystal induction screen |
| CN102540538A (en) * | 2012-02-09 | 2012-07-04 | 深圳市华星光电技术有限公司 | Liquid crystal display panel, liquid crystal display device and preparation method for liquid crystal display panel |
| CN102591060A (en) * | 2012-03-28 | 2012-07-18 | 深圳市华星光电技术有限公司 | Liquid crystal display (LCD) panel and manufacture method thereof, and LCD device |
| CN102866542A (en) * | 2012-09-29 | 2013-01-09 | 深圳市华星光电技术有限公司 | Liquid-crystal panel and liquid-crystal display device |
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| JP2016011994A (en) * | 2014-06-27 | 2016-01-21 | 株式会社ジャパンディスプレイ | Liquid crystal display device |
| CN104267545B (en) * | 2014-10-24 | 2017-03-29 | 合肥京东方光电科技有限公司 | Display device |
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| CN101714039A (en) * | 2008-03-18 | 2010-05-26 | 友达光电股份有限公司 | Touch-control device |
| CN102414650A (en) * | 2009-05-11 | 2012-04-11 | 京瓷株式会社 | Touch panel and display device provided with same |
| CN103293727A (en) * | 2012-06-29 | 2013-09-11 | 上海中航光电子有限公司 | Array baseplate for liquid crystal display device |
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| WO2020191834A1 (en) | 2020-10-01 |
| CN109752889A (en) | 2019-05-14 |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL Huaxing Photoelectric 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. |
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