Birefringence-type color liquid crystal display device

Details Birefringence-type color liquid crystal display device Birefringence-type color liquid crystal display device

1998-07-23

2000-05-23

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349 97, G02F 11335

Patent

active

06067136&

ABSTRACT:
A liquid crystal cell is made by filling a nematic liquid crystal between a pair of glass substrates having a transparent electrode on each confronting inside surface, a twisted retardation film or an ordinary retardation film being disposed as a birefringence layer on the visible side of the liquid crystal cell, and an absorption-type polarizing film being disposed on the outside thereof. On the opposite side to the visible side of the liquid crystal cell, a reflection-type polarizing film, a translucent absorbing film and a back light are disposed in that order. Through the above configuration, a bright reflection-type color display using outside light and a transmission-type color display using a back light can be obtained.

REFERENCES:
patent: 4936654 (1990-06-01), Suzaki et al.
patent: 4973137 (1990-11-01), Kozaki
patent: 5119220 (1992-06-01), Narita et al.
patent: 5555114 (1996-09-01), Narita et al.
patent: 5583678 (1996-12-01), Nishino et al.
patent: 5686979 (1997-11-01), Weber et al.
patent: 5818554 (1998-10-01), Hiyama et al.
patent: 5818559 (1998-10-01), Yoshida
patent: 5828488 (1998-10-01), Ouderkirk et al.

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