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Orientation layer and preparation method thereof, and liquid crystal display device comprising orientation layer

A technology of orientation layer and orientation groove, which is applied in nonlinear optics, instruments, optics, etc., can solve the problems of poor uniformity of orientation groove and occurrence of debris, achieve uniform distribution, avoid friction debris, and improve production efficiency

Inactive Publication Date: 2011-06-29
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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  • Description
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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide an alignment layer and its preparation method, and a liquid crystal display device including the alignment layer, so as to solve the poor uniformity of the alignment grooves and the occurrence of the alignment layer in the prior art when the rubbing method is used to prepare the alignment layer. Debris and other problems, achieve uniform distribution of orientation grooves, and fundamentally avoid the generation of friction debris

Method used

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  • Orientation layer and preparation method thereof, and liquid crystal display device comprising orientation layer
  • Orientation layer and preparation method thereof, and liquid crystal display device comprising orientation layer
  • Orientation layer and preparation method thereof, and liquid crystal display device comprising orientation layer

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Embodiment 1

[0039] The embodiment of the present invention provides a method for preparing an alignment layer. The preparation method is different from the conventional rubbing method, and the alignment layer is prepared by exposing and developing a mask. figure 1 It is a schematic flow diagram of Embodiment 1 of the preparation method of the alignment layer of the present invention, as figure 1 As shown, the preparation method of the alignment layer of this embodiment may include the following three steps:

[0040] Step 101, coating a photosensitive resin material layer on the substrate.

[0041] First, a layer of photosensitive resin material is coated on the array substrate or the color filter substrate. The material can be other photosensitive materials.

[0042] Step 102 , using a mask to expose and develop the photosensitive resin material layer to form an alignment layer distributed with several alignment grooves on the substrate.

[0043] Step 103, curing the alignment layer. ...

Embodiment 2

[0054] Figure 8 It is a schematic flow chart of Embodiment 2 of the preparation method of the alignment layer of the present invention. The main difference between the preparation method of this embodiment and Embodiment 1 is that the photosensitive resin material coated on the substrate is assumed to be a polyimide-based photosensitive resin. The photosensitive resin material is usually yellow, and the prepared alignment layer is required to be transparent, so it is necessary to perform a destaining process on the polyimide-based photosensitive resin material. Specifically, the preparation method of this embodiment may include the following steps:

[0055] Step 201, coating a photosensitive resin material layer on the substrate.

[0056] First, a layer of polyimide-based photosensitive resin material layer is coated on the array substrate or the color filter substrate.

[0057] Step 202 , using a mask to expose and develop the photosensitive resin material layer to form an...

Embodiment 3

[0063] The embodiment of the present invention also provides an alignment layer prepared by the above alignment layer preparation method. The difference between the alignment layer and the existing alignment layer is that its material is a photosensitive resin material, that is, the material of the alignment layer in this embodiment has photosensitive sex. For example, it may be a polyimide-based photosensitive resin material. And the orientation layer is distributed with a number of orientation grooves which are more evenly distributed than the existing structure.

[0064] The alignment layer of this embodiment can significantly improve the display quality of the LCD panel due to its more uniform appearance and no defects such as debris.

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Abstract

The invention provides an orientation layer and a preparation method thereof, and a liquid crystal display device comprising the orientation layer. The preparation method of the orientation layer comprises the following steps of: coating a light-sensitive resin material layer on a base plate; performing exposure and development on the light-sensitive resin material layer by using a maskplate, and forming the orientation layer on which a plurality of orientation grooves are distributed on the base plate; and curing the orientation layer. By the embodiment of the invention, the orientation grooves are formed uniformly and easily controlled, friction chips are radically avoided, the manufacturing efficiency of the orientation layer is improved and the display quality of the liquid crystal display is improved obviously.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of liquid crystal displays, in particular to an alignment layer and a preparation method thereof, and a liquid crystal display device including the alignment layer. Background technique [0002] The liquid crystal display (Liquid Crystal Display, hereinafter referred to as: LCD) technology has developed rapidly in the past ten years, and great progress has been made in terms of screen size and display quality. With the continuous expansion of LCD production, the competition among various manufacturers is becoming increasingly fierce. While continuously improving product performance, various manufacturers are also making continuous efforts to reduce product production costs, thereby enhancing market competitiveness. The alignment layer is the main component of the LCD panel, and the alignment layer includes several alignment grooves, which determine the initial alignment of liquid c...

Claims

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Application Information

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IPC IPC(8): G02F1/1337
Inventor 周伟峰郭建明星
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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