Method for manufacturing color filter, color filter, and display device

Patent metadata

Field	Value
Publication number	US-9360713-B2
Application number	US-201214126964-A
Country	US
Kind code	B2
Filing date	Nov 12, 2012
Priority date	Apr 1, 2012
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A method for manufacturing a color filter, the color filter, and a display device. The method for manufacturing the color filter includes: forming multiple transparent columnar objects in a pixel area of a substrate; forming on the substrate having formed thereon the transparent columnar object a black array that encircles to form the pixel area; and forming pixel resin layers in the pixel area, where the transparent columnar objects protrude outwards from the pixel resin layers to serve as columnar spacers. This allows for accurate control of the aperture size and aperture area of pores in the pixel area of the color filter.

First claim

What is claimed is that:

1. A color filter, comprising:
a substrate;
a plurality of transparent columns formed within in pixel regions of the substrate;
a black matrix formed on the substrate, wherein the black matrix defines the pixel regions; and
pixel resin layers formed in the pixel regions, wherein the transparent columns project from the pixel resin layers and serve as post spacers, and end surfaces of the transparent columns and the pixel resin layers are in a same surface of the substrate.

2. The color filter according to claim 1 , further comprising:
a transparent conductive layer formed on the black matrix and the pixel resin layers.

3. The color filter according to claim 2 , further comprising:
a transparent protective layer formed between the black matrix and pixel resin layers, and the transparent conductive layer.

4. The color filter according to claim 3 , wherein each of the transparent columns has a height of 6-15 μm.

5. The color filter according to claim 2 , wherein each of the transparent columns has a height of 6-15 μm.

6. The color filter according to claim 1 , wherein each of the transparent columns has a height of 6-15 μm.

7. A liquid crystal display panel, comprising: a color filter according to claim 1 .

8. A display device, comprising: a liquid crystal display panel according to claim 7 .

Assignees

• Boe Technology Group Co Ltd

Inventors

• Lu Jinbo
• Zhang Zhuo

Classifications

• G02F1/133514

  Colour filters · CPC title

• G02B5/22

  Absorbing filters {(G02B5/201 - G02B5/208 take precedence)} · CPC title

• G02F2203/01

  transmissive · CPC title

• G02F1/133512

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

• G02F1/13394 Primary

  spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence) · CPC title