Claims
- 1. A color filter comprising a colored polymer thin film used for pixels and having an average refractive index of 1.60 to 1.90, and an absolute value of birefringence of 0.01 or less.
- 2. A color filter according to claim 1, wherein the colored polymer thin film comprises a polymer having a plane structural group in side chains.
- 3. A color filter according to claim 2, wherein the plane structural group is a fluorene group.
- 4. A color filter according to claim 1, wherein the colored polymer thin film is colored with a pigment.
- 5. A color filter according to claim 1, wherein the colored polymer thin film contains particles for reducing birefringence.
- 6. A color filter according to claim 5, wherein the particles for reducing birefringence comprise a compound having a plane structural group.
- 7. A color filter according to claim 6, wherein the particles for reducing birefringence comprise a compound having a halogen group.
- 8. A color filter according to claim 7, wherein the particles for reducing birefringence comprise particles of any of Color Index Nos. PY138, PR209, PR242 and PV23.
- 9. A liquid crystal display comprising a color filter according to any one of claims 1 to 8.
- 10. A color filter according to claim 4, wherein the pigment comprises a yellow pigment comprising more than 50% by weight PY138 having a specific surface area between 40 m2/g and 120 m2/g.
- 11. A color filter according to claim 4, wherein more than 50% by weight of the pigment has a specific surface area between 40 m2/g and 120 m2/g.
Priority Claims (2)
Number |
Date |
Country |
Kind |
10-242903 |
Aug 1998 |
JP |
|
10-365620 |
Dec 1998 |
JP |
|
Parent Case Info
This application is a continuation of PCT/JP99/04650 filed Sep. 14, 1999.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5721076 |
Watanabe et al. |
Feb 1998 |
A |
Foreign Referenced Citations (5)
Number |
Date |
Country |
3-168702 |
Jul 1991 |
JP |
7-098409 |
Apr 1995 |
JP |
8-278630 |
Oct 1996 |
JP |
4-164901 |
Nov 1997 |
JP |
11-104824 |
Jan 1999 |
JP |
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/JP99/04650 |
Aug 1999 |
US |
Child |
09/559399 |
|
US |