Liquid crystal display panel and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-10288951-B2
Application number	US-201314422838-A
Country	US
Kind code	B2
Filing date	Dec 11, 2013
Priority date	Jun 20, 2013
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

Embodiments of the present invention provides a liquid crystal display panel and a manufacturing method thereof, the present invention relates to the field of display technology and can eliminate vacuum bubbles so as to increase the product yield. The liquid crystal display panel comprises an array substrate and a color filter substrate which are assembled to form a cell, and a liquid crystal layer and spacers provided between the array substrate and the color filter substrate, wherein the spacer is provided with a deformation layer therein, and the deformation layer is used to allow the spacer to be expanded in a direction perpendicular to the cell thickness direction under the action of an external condition.

First claim

The invention claimed is:

1. A manufacturing method of a liquid crystal display panel, comprising steps of:
providing spacers on an array substrate and/or a color filter substrate, a deformation layer is provided at a central portion in the spacer, and the deformation layer allowing the spacer to be expanded in a direction perpendicular to a cell thickness direction under the action of an external condition; and
assembling the array substrate and the color filter substrate such that the spacers are between the array layer and the color filter substrate to form the cell, and filling liquid crystal material between the array substrate and the color filter substrate to form a liquid crystal layer, wherein the spacer is configured to maintain cell thickness of the liquid crystal display panel when the deformation layer expands, wherein
the deformation layer is formed at 50%˜80% height of the spacer, which comprises:
on the array substrate and/or the color filter substrate, forming a first spacer pattern at 50%˜80% height of the spacer to be formed through a patterning process;
forming a pattern of the deformation layer made of shape memory alloy on the first spacer pattern through a transfer process, and a second spacer pattern with a height equal to 20%˜50% height of the spacer to be formed through a patterning process,
wherein the first spacer pattern and the second spacer pattern form the spacer.

2. A manufacturing method of a liquid crystal display panel, comprising steps of:
providing spacers on an array substrate and/or a color filter substrate, a deformation layer is provided at a central portion in the spacer, and the deformation layer allowing the spacer to be expanded in a direction perpendicular to a cell thickness direction under the action of an external condition; and
assembling the array substrate and the color filter substrate such that the spacers are between the array layer and the color filter substrate to form the cell, and filling liquid crystal material between the array substrate and the color filter substrate to form a liquid crystal layer, wherein the spacer is configured to maintain cell thickness of the liquid crystal display panel when the deformation layer expands, wherein
the deformation layer is formed at 50%˜80% height of the spacer, which comprises:
on the array substrate and/or the color filter substrate, forming a first spacer pattern at 50%˜80% height of the spacer to be formed through a patterning process;
providing a hardener carrier filled with reactants on the first spacer pattern, the hardener carrier filled with reactants forms the deformation layer, wherein the reactants produce a chemical reaction to generate product under an external condition, the product allows the spacer to be expanded in the direction perpendicular to the cell thickness direction;
forming a second spacer pattern with a height equal to 20%˜50% height of the spacer to be formed through a patterning process,
wherein the first spacer pattern and the second spacer pattern form the spacer.

3. The manufacturing method of claim 1 , wherein the deformation layer is made of shape memory alloy with one-way shape memory effect.

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Optoelectronics Tech Co Ltd

Inventors

• Han Shuai
• Wang Chunlei
• Chen Junsheng

Classifications

• G02F1/1341 Primary

  Filling or closing of cells · CPC title

• G02F2001/13415

  Physics · mapped topic

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• H01L27/1296

  Electricity · mapped topic

• G02F1/133514

  Colour filters · CPC title