1980-10-23
1983-09-13
Corbin, John K.
350337, 350339F, G02F 113
Patent
active
044038321
ABSTRACT:
A liquid crystal display device having a structural arrangement that a plurality of liquid crystal layers each for displaying a pattern are piled up and a pair of polarizers are provided above an uppermost liquid crystal layer and below a lowermost liquid crystal layer, is disclosed in which a polarizer is interposed between adjacent liquid crystal layers in such a manner that adjacent ones of the polarizers are different in direction of transmission axis from each other, in order to eliminate a white on black portion caused by an overlap of the patterns and to thereby reduce the area of a display region; or in which a white on black portion caused by an overlap of the patterns is used as a display portion to form a display pattern having a predetermined shape and to open up new possibilities for color display.
REFERENCES:
patent: 3622224 (1971-11-01), Wysocki et al.
patent: 3712047 (1973-01-01), Girard
patent: 3865469 (1975-02-01), Asai et al.
patent: 3944331 (1976-03-01), Janning
patent: 4241339 (1980-12-01), Ushiyama
Ihochi Takahiko
Nakajima Yutaka
Shibuya Yoshimichi
Tanaka Masashi
Corbin John K.
Gallivan Richard
Hitachi , Ltd.
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