Color filter and display device comprising the same

Patent metadata

Field	Value
Publication number	US-9989683-B2
Application number	US-201615082564-A
Country	US
Kind code	B2
Filing date	Mar 28, 2016
Priority date	Aug 10, 2015
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

A color filter comprises a red color filter, a green color filter, and a blue color filter, wherein the green color filter comprises a cyan pigment satisfying the following equation:
A ⁢ ⁢ 2 A ⁢ ⁢ 1 = 0
where A1 denotes the absorbance of the cyan pigment in a wavelength range of about 600 nm to about 700 nm and A2 denotes the absorbance of the cyan pigment in a wavelength range of about 450 nm to about 500 nm.

First claim

What is claimed is:

1. A color filter comprising:
a red color filter, a green color filter, and a blue color filter,
wherein the green color filter comprises a cyan pigment satisfying the following equation:

A
⁢

⁢
2

A
⁢

⁢
1

=
0

where A1 denotes the absorbance of the cyan pigment in a wavelength range of about 600 nm to about 700 nm and A2 denotes the absorbance of the cyan pigment in a wavelength range of about 450 nm to about 500 nm, and further wherein the cyan pigment comprises at least one of a compound of Formula I and a compound of Formula II:

where each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, and R22 is independently one of hydrogen (H), an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a vinyl group having 2 to 10 carbon atoms, a vinyloxy group having 2 to 10 carbon atoms, a carboxylate ester group having 2 to 10 carbon atoms, a vinyl carboxylate ester group having 3 to 10 carbon atoms, an aryl group having 6 to 14 carbon atoms, a substituted aryl group having 6 to 14 carbon atoms in the aryl group and substituted with at least one of an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a vinyl group having 2 to 10 carbon atoms and a vinyloxy group having 2 to 10 carbon atoms, an acyl group having 1 to 10 carbon atoms, a vinyloxy aryl group having 6 to 14 carbon atoms in the aryl group that is substituted with a vinyloxy group having 2 to 10 carbon atoms and optionally substituted with an alkyl group having 1 to 10 carbon atoms, and a vinyl carboxylate ester aryl group having 6 to 14 carbon atoms in the aryl group and substituted with a vinyl carboxylate ester group having 3 to 10 carbon atoms;

where each of R′1, R′2, R′3, R′4, R′5, R′6, R′7, R′8, R′9, R′10, R′11, R′12, R′13, R′14, R′15, R′16, R′17, R′18, R′19, and R′20 is independently one of H, an alkyl group having 1 to 10 carbon atoms an alkoxy group having 1 to 10 carbon atoms, a vinyl group having 2 to 10 carbon atoms, a vinyloxy group having 2 to 10 carbon atoms, a carboxylate ester group having 2 to 10 carbon atoms, a vinyl carboxylate ester group having 3 to 10 carbon atoms, an aryl group having 6 to 14 carbon atoms, a substituted aryl group having 6 to 14 carbon atoms in the aryl group and substituted with at least one of an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a vinyl group having 2 to 10 carbon atoms and a vinyloxy group having 2 to 10 carbon atoms, an acyl group having 1 to 10 carbon atoms, a vinyloxy aryl group having 6 to 14 carbon atoms in the aryl group that is substituted with a vinyloxy group having 2 to 10 carbon atoms and optionally substituted with an alkyl group having 1 to 10 carbon atoms, a vinyl carboxylate ester aryl group having 6 to 14 carbon atoms in the aryl group and substituted with a vinyl carboxylate ester group having 3 to 10 carbon atoms, and a 2-methylene-alkan-1-one group having 4 to 10 carbon atoms, optionally attached via a phenyl group.

2. The color filter of claim 1 , wherein the green color filter further comprises a yellow pigment.

3. The color filter of claim 1 , wherein a ratio of the yellow pigment to the cyan pigment ranges from about 0.9 to about 1.

4. The color filter of claim 1 , wherein the compound of Formula I is at least one of compounds of Formula I-1 through I-8:

5. The color filter of claim 1 , wherein the compound of Formula II is at least one of compounds of Formulas II-1 through II-6:

6. A display device comprising:
a first light-transmissive substrate;
a second light-transmissive substrate; and
a color filter disposed between the first light-transmissive substrate and the second light-transmissive substrate and comprising a red color filter, a green color filter, or a blue color filter, the green color filter comprising a cyan pigment satisfying the following equation:

A
⁢

⁢
2

A
⁢

⁢
1

=
0

where A1 denotes the absorbance of the cyan pigment in a wavelength range of about 600 nm to about 700 nm and A2 denotes the absorbance of the cyan pigment in a wavelength range of about 450 nm to about 500 nm, and further wherein the cyan pigment comprises at least one of a compound of Formula I and a compound of Formula II:

where each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, and R22 is independently one of hydrogen (H), an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a vinyl group having 2 to 10 carbon atoms, a vinyloxy group having 2 to 10 carbon atoms, a carboxylate ester group having 2 to 10 carbon atoms, a vinyl carboxylate ester group having 3 to 10 carbon atoms, an aryl group having 6 to 14 carbon atoms, a substituted aryl group having 6 to 14 carbon atoms in the aryl group and substituted with at least one of an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a vinyl group having 2 to 10 carbon atoms and a vinyloxy group having 2 to 10 carbon atoms, an acyl group having 1 to 10 carbon atoms, a vinyloxy aryl group having 6 to 14 carbon atoms in the aryl group that is substituted with a vinyloxy group having 2 to 10 carbon atoms and optionally substituted with an alkyl group having 1 to 10 carbon atoms, and a vinyl carboxylate ester aryl group having 6 to 14 carbon atoms in the aryl group and substituted with a vinyl carboxylate ester group having 3 to 10 carbon atoms;

where each of R′1, R′2, R′3, R′4, R′5, R′6, R′7, R′8, R′9, R′10, R′11, R′12, R′13, R′14, R′15, R′16, R′17, R′18, R′19, and R′20 is independently one of H, an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a vinyl group having 2 to 10 carbon atoms, a vinyloxy group having 2 to 10 ca

Assignees

• Samsung Display Co Ltd
• Samsung Display Co Ltd

Inventors

• Kim Hyun Jin
• Kim Su Jeong
• Lee Dae Won
• Ji Woo Man
• Huh Chul

Classifications

• G02F1/133528

  Polarisers · CPC title

• G02F1/133514

  Colour filters · CPC title

• C09B49/00

  Sulfur dyes · CPC title

• C09B47/00

  Porphines; Azaporphines {(non-dyeing compounds C07D487/22)} · CPC title

• G02B5/201

  in the form of arrays · CPC title