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Liquid crystal display substrate and preparation method thereof and liquid crystal display device

A liquid crystal display device and liquid crystal display technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of difficult miniaturization and narrow frame design of liquid crystal display devices, and achieve easy miniaturization and narrow frame design, and realize miniaturization And narrow frame design, the effect of uniform overall thickness

Inactive Publication Date: 2013-04-10
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problems to be solved by the present invention include, aiming at the problem that there is a Halo region at the edge of the existing alignment film, which makes it difficult to miniaturize the liquid crystal display device and design a narrow frame LCD substrate

Method used

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  • Liquid crystal display substrate and preparation method thereof and liquid crystal display device
  • Liquid crystal display substrate and preparation method thereof and liquid crystal display device
  • Liquid crystal display substrate and preparation method thereof and liquid crystal display device

Examples

Experimental program
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Embodiment 1

[0030] This embodiment provides a liquid crystal display substrate, which includes a substrate and an alignment film disposed on the substrate, the substrate has a display area for displaying; the substrate is provided with a retaining wall located at the periphery of the display area; the alignment film covers the display area, And the outer edge is in contact with the retaining wall, and the thickness of the alignment film is less than or equal to the height of the retaining wall.

[0031] In the liquid crystal display substrate of this embodiment, a retaining wall is provided on the periphery of the display area. When the alignment liquid is applied to the substrate, its outer edge is in contact with the retaining wall, so that the edge will not form an arc or a very large arc due to tension. Therefore, the overall thickness of the alignment film formed after curing is uniform, and there is no Halo region or the Halo region is very small, which is beneficial to the miniaturi...

Embodiment 2

[0033] Such as Figure 2 to Figure 4 As shown, this embodiment provides a liquid crystal display substrate, which includes a substrate 9 and an alignment film 82 disposed on the substrate 9 .

[0034] Preferably, the liquid crystal display substrate is an array substrate or a color filter substrate.

[0035] The above-mentioned "substrate 9 of the liquid crystal display substrate" includes a substrate (such as a glass substrate) and other structures formed on the substrate; for an array substrate, the substrate 9 may include structures such as a thin film transistor array, pixel electrodes, and leads; for a color filter The substrate, the substrate 9 may include structures such as a color filter, a common electrode, and a black matrix. Since the specific structure in the substrate 9 can be in many different known forms (for example, the color filter can also be located on the array substrate), it will not be described in detail here, nor shown in the figure.

[0036] Since t...

Embodiment 3

[0058] This embodiment provides a method for preparing a liquid crystal display substrate, which includes:

[0059] The alignment liquid is applied on the substrate of the liquid crystal display substrate of any one of the above embodiments, so that the alignment liquid covers the display area and the outer edge contacts the barrier wall, and the thickness of the alignment liquid layer is less than or equal to the height of the barrier wall.

[0060] heating to solidify the alignment liquid to form an alignment film.

[0061] Since the method for preparing the liquid crystal display substrate of this embodiment uses a substrate with a barrier wall, the above-mentioned liquid crystal display substrate is prepared, and the alignment film does not have a Halo region or the Halo region is very small, so it is easy to realize Miniaturization and narrow bezel design of liquid crystal display devices.

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Abstract

The invention provides a liquid crystal display substrate and a preparation method thereof and a liquid crystal display device, which belong to the technical field of alignment films and can be used for solving the problem of difficulty in miniaturizing and realizing narrow frame design for a liquid crystal display device due to the presence of a Halo region on the edge part of the conventional alignment film. The liquid crystal display substrate comprises a substrate and an alignment film arranged on the substrate, wherein the substrate is provided with a display region for displaying; the substrate is provided with a retaining wall positioned on the periphery of the display region; the alignment film covers the display region, and the outer edge of the alignment film is contacted with the retaining wall; and the thickness of the alignment film is smaller than or equal to the height of the retaining wall. The liquid crystal display substrate preparation method provided by the invention is used for preparing the liquid crystal display substrate. The liquid crystal display device provided by the invention comprises the liquid crystal display substrate. The liquid crystal display substrate and the preparation method can be applied to a liquid crystal display device, in particular to a thin film transistor array liquid crystal display device.

Description

technical field [0001] The invention belongs to the technical field of alignment films, and in particular relates to a liquid crystal display substrate, a preparation method thereof, and a liquid crystal display device. Background technique [0002] The alignment film is an important structure in the liquid crystal display substrate (array substrate, color filter substrate). The alignment film is usually made of polyimide (PI, Polyimide Film) material, and an alignment structure (such as grooves distributed along a certain direction) is formed on its surface. Grooves), so that the liquid crystal molecules in contact with it have the desired orientation. [0003] The existing method for preparing an alignment film includes: first applying an alignment liquid on a substrate by means of transfer printing or inkjet printing, and then heating to solidify the alignment liquid to form an alignment film. [0004] However, if figure 1 As shown, during the preparation process of the...

Claims

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Application Information

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IPC IPC(8): G02F1/1337G02F1/1333
Inventor 申莹涂志中
Owner BOE TECH GRP CO LTD
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