Pixelated compensators for twisted nematic liquid crystal displays

阅读量:

17

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:

97

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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2003
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