Invention Grant
- Patent Title: Color filter and liquid crystal display device using the same
- Patent Title (中): 滤色镜和液晶显示装置使用相同
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Application No.: US10958387Application Date: 2004-10-06
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Publication No.: US07248313B2Publication Date: 2007-07-24
- Inventor: Masae Kitayama , Koji Matsuoka , Yukio Yoshida , Tsuyoshi Tokuda , Toshihide Tsubata
- Applicant: Masae Kitayama , Koji Matsuoka , Yukio Yoshida , Tsuyoshi Tokuda , Toshihide Tsubata
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2003-347927 20031007; JP2004-271906 20040917
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
A color filter of the present invention includes a large number of colored layers of a plurality of colors regularly arranged together. The color filter is such that xWH−0.05≦xB≦xWH+0.05 and yWH−0.05≦yB≦yWH+0.05 or xWH−0.10≦xB≦xWH and yWH−0.10≦yB≦yWH is satisfied, where (xWH, yWH) is the chromaticity in the CIE 1931 chromaticity diagram when the filter alone is irradiated with light to produce a white display, and (xB, yB) is the chromaticity in the CIE 1931 chromaticity diagram when the filter is irradiated with the same light while being interposed between a pair of polarization plates arranged in a crossed Nicols state each having a degree of polarization of 99.98% or more.
Public/Granted literature
- US20050094060A1 Color filter and liquid crystal display device using the same Public/Granted day:2005-05-05
Information query
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