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Display substrate, display device and display substrate manufacturing method

A technology for display substrates and manufacturing methods, which is applied in nonlinear optics, instruments, optics, etc., and can solve problems such as inability to obtain liquid crystal molecules, affect the display quality of liquid crystal display devices, and light leakage

Active Publication Date: 2019-03-01
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the rubbing alignment process, if the depth of the grooves formed on some areas of the alignment layer is shallower than other areas, or if no rubbing grooves are formed on some areas, the liquid crystal molecules corresponding to these areas will not be ideally aligned, and it is easy to occur Light leakage, thus affecting the display quality of liquid crystal display devices

Method used

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  • Display substrate, display device and display substrate manufacturing method
  • Display substrate, display device and display substrate manufacturing method
  • Display substrate, display device and display substrate manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] image 3 A schematic partial plan view of a region provided with a spacer on a display substrate provided in this embodiment, Figure 4 for along image 3 A schematic cross-sectional view of A-A' in Figure 5 for along image 3 Another cross-sectional schematic diagram of A-A' in .

[0046] This embodiment provides a display substrate, the display substrate includes a base substrate and a plurality of spacers arranged on the base substrate, the end of the plurality of spacers away from the base substrate has an inclined surface; the plurality of spacers The direction of inclination of the inclined surface of the object is the same.

[0047] Exemplarily, as image 3 and Figure 4 As shown, for example, the rubbed alignment direction of the alignment layer is a direction from right to left parallel to one side of the base substrate 4 as shown. For example, the spacer may be a columnar spacer 5 . The columnar spacer 5 is disposed on the substrate 4 , the upper surf...

Embodiment 2

[0066] Figure 8 is a schematic cross-sectional view of a display device provided in this embodiment.

[0067] This embodiment provides a display device, which includes any one of the above display substrates, and also includes an opposite substrate, wherein the display substrate and the opposite substrate are arranged opposite to each other, and a plurality of spacers (such as columnar spacers) are sandwiched between between the two. The alignment layer of the display device provided in this embodiment has a small frictional weak area near the spacer, which can avoid or weaken the above-mentioned related defects caused by poor friction in the nearby area.

[0068] Exemplarily, as Figure 8 As shown, the display device 100 includes a display substrate 10 and a counter substrate 7 opposite to the display substrate 10 , and a plurality of columnar spacers 5 are sandwiched between the counter substrate 7 and the display substrate 10 . Wherein, the alignment layer 11 on the dis...

Embodiment 3

[0073] Figures 9A-9C It is a schematic diagram of a method for manufacturing a display substrate provided in this embodiment.

[0074] This embodiment provides a method for manufacturing a display substrate, including providing a base substrate and forming a plurality of spacers on the base substrate, where the end of the plurality of spacers away from the base substrate has an inclined surface; the plurality of spacers The inclined direction of the inclined surface is the same.

[0075] For example, forming a plurality of spacers includes forming a photoresist layer on the base substrate and performing a gray tone photolithography process. In the gray tone photolithography process, the exposure intensity of the partial exposure area corresponding to the spacers gradually decreases or increases gradually along the rubbing orientation direction of the alignment layer.

[0076] For example, the main spacers and auxiliary spacers described in Embodiment 1 can be formed at the ...

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PUM

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Abstract

Provided are a display substrate, a display device and a display substrate manufacturing method. The display substrate includes a base substrate and a plurality of spacers disposed on the base substrate, and the ends, away from the base substrate, of the plurality of spacers are provided with inclined surfaces; the inclined surfaces of the plurality of spacers have the same oblique direction. Whenthe orientation layer on the display substrate is rubbed and oriented, it is possible to avoid poor display defects caused by large deformation when fibers on the surface of rubbing cloth pass through the spacers.

Description

technical field [0001] At least one embodiment of the present disclosure relates to a display substrate, a display device, and a method for manufacturing the display substrate. Background technique [0002] In the field of liquid crystal display technology, the manufacturing process of liquid crystal cells includes aligning liquid crystals using alignment techniques. Alignment technology is to use physical or chemical methods to make the alignment layer have the effect of aligning liquid crystal molecules in the same direction at a certain pre-tilt angle. Rubbing alignment is a commonly used physical method for aligning liquid crystals. It usually uses a specially treated rubbing cloth on the outside of the roller to rub a certain depth and directional grooves on the surface of the alignment layer. The interaction force between molecules realizes the orientation of liquid crystal molecules. [0003] During the rubbing alignment process, if the depth of the grooves formed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1337G02F1/1339
CPCG02F1/133784G02F1/13394G02F1/1337G02F1/1339G02F1/13396G02F1/133514
Inventor 彭彬冯永安魏成铭许志军余道平
Owner BOE TECH GRP CO LTD