CN109188782B - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
- Publication number
- CN109188782B CN109188782B CN201811081758.7A CN201811081758A CN109188782B CN 109188782 B CN109188782 B CN 109188782B CN 201811081758 A CN201811081758 A CN 201811081758A CN 109188782 B CN109188782 B CN 109188782B
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- Prior art keywords
- crystal display
- display panel
- liquid crystal
- substrate
- spacers
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
- G02F1/133723—Polyimide, polyamide-imide
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
Abstract
The invention discloses a liquid crystal display panel, which comprises a first substrate, a color filter layer, a second substrate and a plurality of spacers. The color filter layer is disposed on the first substrate. A plurality of longitudinally arranged data lines and a plurality of transversely arranged scan lines are formed in the color filter layer, and the plurality of scan lines and the plurality of data lines are mutually staggered. The color filter layer is arranged on the first substrate, and a plurality of through holes are formed in the color filter layer. The spacers are arranged on the color filter layer and comprise at least one flow guide spacer. At least one surface tension eliminating ridge is formed on the flow guide spacer and used for eliminating the surface tension of an alignment liquid and enabling the alignment liquid to smoothly flow into the through holes. The flow guide spacer can improve the yield and the quality of the liquid crystal display panel.
Description
Technical Field
The invention relates to a liquid crystal display panel, in particular to a liquid crystal display panel, wherein a main spacer is arranged between two glass substrates of the liquid crystal display panel, and a flow guide spacer adjacent to a through hole (Via) is also arranged between the two glass substrates of the liquid crystal display panel, so that the surface tension of Polyimide (PI) alignment liquid is eliminated, and the PI alignment liquid can smoothly flow into the through hole.
Background
In the existing lcd products having a Color Filter On Array (COA) substrate, a large amount of 3T structure technology and organic insulating Film Array (PFA) technology are used, and Polyimide (PI) alignment liquid must be used in the Cell PI coating process of the lcd panel. However, the PI alignment liquid has high surface tension and is easy to agglomerate and flow disadvantageously, which tends to cause the PI alignment liquid not to flow into the Via holes (Via) but to accumulate around the Via holes, and finally causes the phenomenon of color or brightness unevenness of the display, so-called Mura, thereby reducing the quality of the display product.
Therefore, it is necessary to provide a liquid crystal display panel to solve the problems of the prior art.
Disclosure of Invention
In view of the problem of the prior art that the alignment liquid has high surface tension and cannot flow into the via hole smoothly, resulting in non-uniform color or brightness of the display, the present invention provides a liquid crystal display panel to solve the above problem.
The main objective of the present invention is to provide a liquid crystal display panel, in which a flow guide spacer is disposed adjacent to a Via hole (Via) in addition to a main spacer disposed between two glass substrates of the liquid crystal display panel, so as to eliminate the surface tension of Polyimide (PI) alignment liquid, and enable the PI alignment liquid to smoothly flow into the Via hole.
To achieve the above object, an embodiment of the present invention provides a liquid crystal display panel, including:
a first substrate;
a plurality of scan lines and data lines arranged in a staggered manner, and disposed on the first substrate;
the color filter layer is arranged on the first substrate and provided with a plurality of through holes;
a second substrate disposed opposite to the first substrate, wherein the plurality of scan lines and the plurality of data lines and the color filter layer are disposed between the first substrate and the second substrate; and
and a plurality of spacers formed on the color filter layer, including a plurality of flow guide spacers disposed around the plurality of via holes, for eliminating surface tension of the alignment liquid and guiding the alignment liquid to flow into the via holes when forming an alignment film.
Compared with the prior art, the diversion spacer arranged at the periphery of the through hole of the liquid crystal display panel has a relatively sharp surface tension eliminating ridge, and can press or cut into the surface when contacting the surface of the PI alignment liquid so as to destroy the surface tension of the PI alignment liquid, thereby avoiding the problem that the PI alignment liquid is condensed and is not easy to flow. Therefore, the PI alignment liquid with damaged surface tension can smoothly flow into the via holes, and the problem of Mura phenomenon that the color or brightness of the display is not uniform due to the flowing of the PI alignment liquid is avoided. Therefore, the liquid crystal display panel can improve the yield and the display quality.
In an embodiment of the present invention, the flow guiding spacer has at least one surface tension eliminating ridge.
In an embodiment of the present invention, the guiding spacer is a triangular prism having a plurality of surface tension eliminating ridges and a plurality of surface tension eliminating sharp corners.
In an embodiment of the present invention, the flow guiding spacer is an elliptical cylinder having two elliptical ridges.
In an embodiment of the present invention, the flow guiding spacer is a truncated cone having two circular ridges.
In an embodiment of the invention, the outer side of the flow guide spacer is aligned with the periphery of the via hole.
In an embodiment of the invention, at least one flow guiding spacer is disposed around each of the through holes.
In an embodiment of the invention, a plurality of the flow guiding spacers are disposed around each of the vias, and a gap is formed between two adjacent flow guiding spacers for allowing the alignment liquid to flow into the via through the gap.
In an embodiment of the invention, an organic insulating film layer is disposed on the color filter layer.
In an embodiment of the invention, a height of each of the flow guiding spacers is lower than a height of each of the main spacers, and each of the flow guiding spacers does not contact the second substrate.
In order to make the aforementioned and other objects of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below:
drawings
FIG. 1 is a partially enlarged top view of a liquid crystal display panel 1 according to an embodiment of the present invention, wherein an alignment film is not completely formed in a Polyimide (PI) alignment solution, and a color resistance unit and an organic insulation film are omitted.
FIG. 2 is a partially enlarged cross-sectional side view of a liquid crystal display panel 1 according to an embodiment of the present invention.
FIG. 3 is another partially enlarged cross-sectional side view of the LCD panel 1 according to the embodiment of the present invention, wherein the PI alignment liquid has completely flowed into the via hole to completely form the alignment film.
Fig. 4 is a schematic side view of the main spacer, the sub-spacer and the guide spacer of the lcd panel of the present invention in the same horizontal plane.
Fig. 5 is a perspective view of a guide spacer according to embodiment 1 of the liquid crystal display panel of the invention.
FIG. 6 is a partially enlarged top view of an embodiment 2 of the liquid crystal display panel according to the present invention, wherein the alignment layer is not completely formed by the PI alignment liquid, and the color resistance unit and the organic insulation film layer are omitted.
Fig. 7 is a perspective view of a guide spacer according to embodiment 2 of the liquid crystal display panel of the invention.
FIG. 8 is a partially enlarged top view of a liquid crystal display panel 3 according to an embodiment of the present invention, wherein the PI alignment liquid has not completely flowed into the via hole, and the color resistance unit and the organic insulation film layer are omitted.
Fig. 9 is a perspective view of a guide spacer according to embodiment 3 of the liquid crystal display panel of the present invention.
Detailed Description
Referring to fig. 1 and 2, a liquid crystal display panel 1 according to the first embodiment of the present invention includes: a first substrate 10, a plurality of scan lines S and data lines D arranged in a staggered manner, a color filter layer 20, a second substrate 40, a plurality of spacers, an alignment Film P, and an organic insulating Film (PFA) layer 15.
The first substrate 10 may be a glass substrate.
Referring to fig. 3 and 4, the plurality of data lines D and the plurality of scan lines S are disposed on the first substrate 10.
The color filter layer 20 is disposed on the first substrate 10, covers the data lines D and the scan lines S, and has a plurality of via holes 30 on a top surface of the color filter layer 20. In addition, the color filter layer 20 includes a plurality of color resistance units 25, and the color resistance units 25 can be divided into a plurality of blue color resistance units 25, a plurality of green color resistance units 25, and a plurality of red color resistance units 25.
The second substrate 40 may be a glass substrate and is disposed opposite to the first substrate 10, wherein the plurality of scan lines S and the plurality of data lines D and the color filter layer 20 are disposed between the first substrate 10 and the second substrate 40.
The spacers are formed on the color filter layer 20 and include main spacers 51 and guide spacers 53. The main spacer 51 is disposed on the color filter layer 20. The guide spacers 53 are disposed around the respective via holes 30, and serve to remove surface tension of the alignment liquid and guide the alignment liquid to flow into the via holes when the alignment film P is formed.
The alignment film P is disposed on the color filter layer 20 and fills the plurality of via holes 30, and may be Polyimide (PI). In addition, the alignment film P is formed by injecting an alignment liquid on the color filter layer 20.
In an embodiment of the present invention, an organic insulating film 15 is disposed on the color filter layer 20. The organic insulating film layer 15 is disposed on the plurality of color resistance units 25 of the color filter layer 20.
Referring to fig. 5, at least one flow guiding spacer 53 is disposed on the periphery 301 of at least one via hole 30, and at least one surface tension eliminating ridge 533 is formed on the flow guiding spacer 53 for eliminating the surface tension of an alignment liquid and enabling the alignment liquid to smoothly flow into the via holes 30. The surface tension eliminating ridge 533 is a sharp edge, and can apply a large pressure to the surface of the liquid alignment layer to cause the surface deformation, thereby effectively eliminating the surface tension of the PI liquid alignment layer, so that the PI liquid alignment layer can change from a condensed state to a collapsed state and flow smoothly.
In detail, in embodiment 1 of the present invention, the guiding spacer 53 is a triangular prism having a plurality of surface tension eliminating ridges 533 and a plurality of surface tension eliminating sharp corners 531. The tension eliminating ridge and the surface tension eliminating sharp corner 531 have sharp or sharp geometric structures, so that the surface of the PI alignment liquid can be effectively pressed to deform, the surface tension of the PI alignment liquid can be effectively eliminated, and the PI alignment liquid can be changed from a condensed state to a dispersed state to smoothly flow. In more detail, the height of each of the flow guide spacers 53 is lower than the height of each of the main spacers 51, and each of the flow guide spacers 53 does not contact the second substrate 40.
Referring to fig. 1 and 4, in the preferred embodiment of the present invention, the lcd panel further includes a plurality of sub-spacers 52, the plurality of sub-spacers 52 are disposed on the top surface of the color filter layer 20, and the height of each sub-spacer 52 is lower than each main spacer 51 and higher than each guide spacer 53. The sub-spacer 52 can slow down the flow of the PI alignment liquid injected onto the color filter layer 20, preventing it from suddenly flowing through the main spacer 51 and causing contamination.
In an embodiment of the invention, at least one flow guiding spacer 53 is disposed around each of the vias 30, so as to ensure that the PI alignment liquid can flow into all of the vias 30.
Referring to fig. 6 and 7, in the embodiment 2 of the present invention, the flow guiding spacer 53a is an elliptical cylinder having two elliptical ridges 533 a. In more detail, a plurality of the flow guiding spacers 53 are disposed around each of the vias 30, and a gap 302 is formed between two adjacent flow guiding spacers 53 for allowing the alignment liquid to flow into the via 30 through the gap. The elliptical cylinder has two elliptical ridges 533a to break the surface tension of the PI alignment liquid, but does not have sharp corners, however, the elliptical cylinder may have a longer structure such that the two elliptical ridges 533a can break the surface tension of the PI alignment liquid in a wide range.
Referring to fig. 8 and 9, in the embodiment 3 of the present invention, the outer side of the flow guiding spacer 53 is aligned with the periphery of the via hole 30. The guiding spacer 53 aligned with the periphery of the via hole 30 can make the PI alignment liquid be damaged by the guiding spacer 53 when the PI alignment liquid is extremely close to the via hole 30, and the PI alignment liquid smoothly flows into the via hole 30 before being re-condensed to form surface tension after being damaged by the surface tension, so that the PI alignment liquid can be prevented from being re-condensed to form surface tension before flowing into the via hole 30 and being incapable of flowing into the via hole 30. The flow guiding spacer 53 is a truncated cone having two circular ridges 533 b. The two circular ridge lines 533b of the truncated cone can cause pressure and deformation to the surface of the PI alignment liquid when touching the PI alignment liquid, thereby damaging the surface tension of the PI alignment liquid.
Compared with the prior art, the guiding spacer 53 disposed at the periphery 301 of the via hole 30 of the liquid crystal display panel of the present invention has a relatively sharp surface tension eliminating ridge 533, which can press or cut into the surface of the PI alignment liquid when contacting the surface, thereby damaging the surface tension of the PI alignment liquid, and thus avoiding the problem that the PI alignment liquid is condensed and is not easy to flow. Therefore, the PI alignment liquid with the damaged surface tension can smoothly flow into the via hole 30, and the Mura phenomenon that the flowing of the PI alignment liquid does not cause the color or brightness unevenness of the display is avoided. Therefore, the liquid crystal display panel can improve the yield and the display quality.
Claims (9)
1. A liquid crystal display panel comprising:
a first substrate;
a plurality of scan lines and data lines arranged in a staggered manner, and disposed on the first substrate;
the color filter layer is arranged on the first substrate and provided with a plurality of through holes;
a second substrate disposed opposite to the first substrate, wherein the plurality of scan lines and the plurality of data lines and the color filter layer are disposed between the first substrate and the second substrate; and
a plurality of spacers formed on the color filter layer, including a plurality of flow guide spacers disposed around the plurality of via holes, for eliminating surface tension of an alignment liquid and guiding the alignment liquid to flow into the via holes when forming an alignment film;
the flow guide spacer has at least one surface tension eliminating ridge.
2. The liquid crystal display panel according to claim 1, wherein: the flow guide spacer is a triangular prism and has a plurality of surface tension eliminating ridges and a plurality of surface tension eliminating sharp corners.
3. The liquid crystal display panel according to claim 1, wherein: the flow guide spacer is an elliptical cylinder and has two elliptical ridge lines.
4. The liquid crystal display panel according to claim 1, wherein: the diversion spacer is a truncated cone and has two circular ridges.
5. The liquid crystal display panel according to claim 1, wherein: the outer side of the diversion spacer is flush with the periphery of the via hole.
6. The liquid crystal display panel according to claim 1, wherein: at least one diversion spacer is arranged on the periphery of each through hole.
7. The liquid crystal display panel according to claim 1, wherein: the periphery of each via hole is provided with a plurality of diversion spacers, and a gap is formed between two adjacent diversion spacers so that the alignment liquid flows into the via hole through the gap.
8. The liquid crystal display panel of claim 1, wherein an organic insulating film is disposed on the color filter layer.
9. The liquid crystal display panel according to claim 1, wherein: the spacers further include a plurality of main spacers disposed on the color filter layer, a height of each of the flow guide spacers is lower than a height of each of the main spacers, and each of the flow guide spacers does not contact the second substrate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081758.7A CN109188782B (en) | 2018-09-17 | 2018-09-17 | Liquid crystal display panel |
| PCT/CN2019/075162 WO2020057049A1 (en) | 2018-09-17 | 2019-02-15 | Liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081758.7A CN109188782B (en) | 2018-09-17 | 2018-09-17 | Liquid crystal display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109188782A CN109188782A (en) | 2019-01-11 |
| CN109188782B true CN109188782B (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811081758.7A Active CN109188782B (en) | 2018-09-17 | 2018-09-17 | Liquid crystal display panel |
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| Country | Link |
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| CN (1) | CN109188782B (en) |
| WO (1) | WO2020057049A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188782B (en) * | 2018-09-17 | 2020-04-10 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel |
| CN111240101B (en) * | 2020-03-13 | 2021-07-23 | Tcl华星光电技术有限公司 | Alignment substrate and manufacturing method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101362008B1 (en) * | 2006-12-23 | 2014-02-12 | 엘지디스플레이 주식회사 | Liquid crystal display panel and method for fabricating thereof |
| KR102463309B1 (en) * | 2016-01-08 | 2022-11-04 | 삼성디스플레이 주식회사 | Liquid crystal display device and method of manufacturing the same |
| JP6649788B2 (en) * | 2016-02-17 | 2020-02-19 | 株式会社ジャパンディスプレイ | Liquid crystal display |
| CN105655360B (en) * | 2016-04-07 | 2020-02-07 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof and display device |
| CN106950769B (en) * | 2017-03-20 | 2020-05-05 | 深圳市华星光电技术有限公司 | Array substrate and display device |
| CN109188782B (en) * | 2018-09-17 | 2020-04-10 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel |
| CN109240005A (en) * | 2018-10-15 | 2019-01-18 | 深圳市华星光电技术有限公司 | A kind of TFT substrate |
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2018
- 2018-09-17 CN CN201811081758.7A patent/CN109188782B/en active Active
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2019
- 2019-02-15 WO PCT/CN2019/075162 patent/WO2020057049A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| CN109188782A (en) | 2019-01-11 |
| WO2020057049A1 (en) | 2020-03-26 |
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