Color filter substrate and display device

Patent metadata

Field	Value
Publication number	US-10108043-B2
Application number	US-201615122419-A
Country	US
Kind code	B2
Filing date	Jul 20, 2016
Priority date	Jun 29, 2016
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

The present invention provides a color filter substrate and a display device. The color filter substrate of the present invention includes a backing plate, a black matrix arranged on the backing plate, and a plurality of color resist blocks arranged on the backing plate and spaced from each other by the black matrix. The color resist blocks include a multiple-pore support layer and a color resist material distributed in the multiple-pore support layer. The color resist material includes pigment molecules. The multiple-pore support layer includes a plurality of pores formed therein such that the pores have a size that is greater than a size of the pigment molecules so as to provide effective dispersion and support of pigment molecules, allowing for reducing the amount of non-pigment constituents, such as a dispersion agent and resin, of the color resist material and increasing the content of pigment constituent to thereby improve the performance of light filtration for each unit film thickness of the color resist blocks and allow for thinning of the color filter substrate and an increased density of pixels. The display device of the present invention includes the above-described color filter substrate and shows various advantages, including wide gamut, reduced thickness, and increased brightness.

First claim

What is claimed is:

1. A color filter substrate, comprising a backing plate, a black matrix arranged on the backing plate, and a plurality of color resist blocks arranged on the backing plate and spaced from each other by the black matrix, wherein the color resist blocks comprises a multiple-pore support layer and a color resist material distributed in the multiple-pore support layer; the color resist material comprises pigment molecules; and the multiple-pore support layer comprises a plurality of pores formed therein such that the pores have a size that is greater than a size of the pigment molecules;
wherein the multiple-pore support layer comprises a plurality of graphene layers that is arranged perpendicular to the backing plate and spaced from each other, the plurality of graphene layers defining therebetween a plurality of divided hollow areas that serves as the plurality of pores of the multiple-pore support layer, the divided areas having a size greater than the size of the pigment molecules.

2. The color filter substrate as claimed in claim 1 , wherein the divided areas have a width of 50-500 nm and a length of 50-1000 nm and the graphene layers has a height of 100-1000 nm.

3. A display device, comprising a color filter substrate as claimed in claim 1 .

4. A color filter substrate, comprising a backing plate, a black matrix arranged on the backing plate, and a plurality of color resist blocks arranged on the backing plate and spaced from each other by the black matrix, wherein the color resist blocks comprises a multiple-pore support layer and a color resist material distributed in the multiple-pore support layer; the color resist material comprises pigment molecules; and the multiple-pore support layer comprises a plurality of pores formed therein such that the pores have a size that is greater than a size of the pigment molecules;
wherein the multiple-pore support layer comprises a plurality of carbon nanotubes that is arranged perpendicular to the backing plate, the plurality of carbon nanotubes being arranged on the backing plate in such a manner as to define and circumferentially surround a plurality of divided hollow spaces, the plurality of divided spaces serving as the plurality of pores of the multiple-pore support layer, the divided spaces having a size greater than the size of the pigment molecules.

5. The color filter substrate as claimed in claim 4 , wherein the carbon nanotubes are each a single-wall carbon nanotube or a multiple-wall carbon nanotube.

6. The color filter substrate as claimed in claim 4 , wherein the divided spaces are of a shape of a rectangular parallelepiped and the divided spaces have a length and a width that are 50-500 nm and a height that is 100-1000 nm.

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd

Inventors

• Pan Biao

Classifications

• G03F7/0007

  Filters, e.g. additive colour filters; Components for display devices · CPC title

• G02B5/223

  containing organic substances, e.g. dyes, inks or pigments · CPC title

• G02F1/133512

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

• B82Y20/00

  Nanooptics, e.g. quantum optics or photonic crystals · CPC title

• G02B5/201

  in the form of arrays · CPC title