Color film, substrate and display device

Patent metadata

Field	Value
Publication number	US-2018239196-A1
Application number	US-201715572458-A
Country	US
Kind code	A1
Filing date	Apr 27, 2017
Priority date	May 6, 2016
Publication date	Aug 23, 2018
Grant date	—

Abstract

Provided are a color film, a substrate and a display device. The color film is used for transmitting a light with one color of three primary colors, and comprises a first absorbing pigment and a second absorbing pigment, wherein absorption spectrum ranges of the first and second absorbing pigments correspond to spectral bands of lights with the other two colors of the three primary colors respectively.

First claim

1 . A color film for transmitting a light with a first color of three primary colors, wherein the color film comprises a first absorbing pigment and a second absorbing pigment, and absorption spectrum ranges of the first absorbing pigment and the second absorbing pigment correspond to spectral bands of lights with second and third colors of the three primary colors respectively.

2 . The color film according to claim 1 , wherein the three primary colors are red, green and blue.

3 . The color film according to claim 1 , wherein the light comprising the three primary colors is emitted by a quantum dot white light source.

4 . The color film according to claim 1 , wherein the first absorbing pigment and/or the second absorbing pigment are/is an organic pigment.

5 . The color film according to claim 1 , wherein the absorption spectrum range of the first absorbing pigment corresponds to the spectral band of red light, and the first absorbing pigment has a molecular structural formula of:

wherein, R 1 and R 2 each are independently selected from one of —H, —(CH 2 ) n —CH 3 (n=0-10), —CH 2 (CH 2 ) n OH (n=0-10),

and R 3 and R 4 each are independently selected from one of —H, —(CH 2 ) n —CH 3 (n=0-11), —O—(CH 2 ) n —CH 3 (n=0-11), —O—Si(CH 3 ) 2 —Si(CH 3 ) 3 , —O—Si(CH 3 ) 3 , and

6 . The color film according to claim 1 , wherein the absorption spectrum range of the first absorbing pigment corresponds to the spectral band of blue light, and the first absorbing pigment has a molecular structural formula of:

wherein, R 5 and R 6 each are independently selected from one of —H, —(CH 2 ) n —CH 3 (n=0-10), —CH 2 (CH 2 ) n OH (n=0-10),

7 . The color film according to claim 1 , wherein the absorption spectrum range of the first absorbing pigment corresponds to the spectral band of green light, and the first absorbing pigment has a molecular structural formula of:

wherein, R 7 and R 8 each are independently selected from one of —H, —(CH 2 ) n —CH 3 (n=0-10), —CH 2 (CH 2 ) n OH (n=0-10),

8 . The color film according to claim 1 , wherein the sum of the mass percent contents of the first absorbing pigment and the second absorbing pigment in the color film is 5%˜40%.

9 . The color film according to claim 1 , wherein the color film further comprises a resin, an unsaturated double bond-containing monomer, a photo-initiator, a silicone coupling agent, an auxiliary agent and a solvent.

10 . The color film according to claim 1 , wherein the color film comprises a first sub-color film and a second sub-color film disposed as a stack;
wherein the first sub-color film comprises the first absorbing pigment, and the second sub-color film comprises the second absorbing pigment.

11 . The color film according to claim 10 , wherein
the mass percent content of the first absorbing pigment in the first sub-color film is 5%˜40%, and the mass percent content of the second absorbing pigment in the second sub-color film is 5%˜40%.

12 . A substrate comprising the color film of claim 1 .

13 . A display device comprising a backlight source, an array substrate, a cell aligning substrate, and a liquid crystal layer positioned between the array substrate and the cell aligning substrate;
wherein the array substrate or the cell aligning substrate comprises the color film of claim 1 .

14 . The display device according to claim 13 , wherein the backlight source is a quantum dot white backlight source.

15 . The display device according to claim 13 , wherein the color film includes three kinds of color films each of which transmits a light with one color of the three primary colors.

16 . The display device according to claim 15 , wherein the color film includes a red color film, a green color film and a blue color film.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Zhou Tingting
• Zhang Bin
• He Xiaolong
• Qi Yonglian
• Wang Jiushi

Classifications

• G02F1/1337

  Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers · CPC title

• G02F1/133621

  providing coloured light (G02F1/133617, G02F1/133533 take precedence) · CPC title

• G02F1/133514 Primary

  Colour filters · CPC title

• G02B5/201

  in the form of arrays · CPC title

• G02F1/017

  Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells · CPC title