Pixelated compensators for twisted nematic liquid crystal displays
申请(专利)号:
US19940313509
申请日期:
1994-09-30
公开/公告号:
US5589963A
公开/公告日期:
1996-12-31
申请(专利权)人:
GUNNING, III; WILLIAM J.;WINKER; BRUCE K.;KOCH; GENE C.
被引量:
摘要:
A novel normally-white dual-domain twisted nematic liquid crystal display exhibits dramatically improved contrast and gray scale linearity stability over a wide range of viewing angles as compared to conventional dual-domain twisted nematic displays. The display incorporates one or more pixelated compensator layers internal to the liquid crystal cell. A pixelated compensator layer has a pattern wherein the orientation or retardation of the compensator layer varies according to the tilt domain structure of the display's liquid crystal material. Such a pixelated compensator layer allows optimal compensation for each of the differently oriented liquid crystal tilt domains. The pixelated compensator layer(s), and possibly one or more non-pixelated compensator layers, may be deposited on either a display's active matrix substrate or its (passive) color filter substrate, or a combination thereof.
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