Color liquid crystal display device using polymer and polarizati

Details Color liquid crystal display device using polymer and polarizati Color liquid crystal display device using polymer and polarizati

1999-05-03

2000-04-25

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349 99, 349117, 349119, G02F 11335

Patent

active

060550333

ABSTRACT:
A color liquid crystal display device comprises a liquid crystal cell and a polymer film. The liquid crystal cell comprises a liquid crystal layer positioned between a pair of transparent substrates, on whose innersides transparent electrodes are provided. The polymer film is positioned at one side of the liquid crystal cell. The liquid crystal layer and the polymer film are sandwiched by a pair of polarization films. A twist angle of the liquid crystal layer is set to be a predetermined value. The product of birefringence of the nematic liquid crystal, .DELTA.n.sub.LC, and a thickness of liquid crystal layer, d.sub.LC, .DELTA.n.sub.LC .multidot.d.sub.LC is set to be a predetermined value. The birefringence difference .DELTA.(R)=R.sub.Film -.DELTA.n.sub.LC .multidot.d.sub.LC, which is defined by using the .DELTA.n.sub.LC .multidot.d.sub.LC and retardation of the polymer film, R.sub.Film, is set to be a value between 0.0 .mu.m and 0.1 .mu.m. The present color liquid crystal device can express a black and white display in achromatic color having bright white and with high contrast, and a red display with high color purity.

REFERENCES:
patent: 4522470 (1985-06-01), Iijima
patent: 4852976 (1989-08-01), Suzuki
patent: 4909606 (1990-03-01), Wada et al.
patent: 4973137 (1990-11-01), Kozaki
patent: 4984873 (1991-01-01), Takiguchi et al.
patent: 5016988 (1991-05-01), Iimura
patent: 5089906 (1992-02-01), Ohnishi et al.
patent: 5175638 (1992-12-01), Kanemoto et al.
patent: 5235450 (1993-08-01), Yoshimura et al.
patent: 5337174 (1994-08-01), Wada et al.
patent: 5380459 (1995-01-01), Kanemoto et al.
patent: 5585950 (1996-12-01), Nishino et al.
patent: 5587821 (1996-12-01), Nakanishi et al.
patent: 5680184 (1997-10-01), Nishino
patent: 5699137 (1997-12-01), Kishimoto
patent: 5737048 (1998-04-01), Abileah et al.

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