In-fem liquid crystal display panel with a film of cellophane ta

Details In-fem liquid crystal display panel with a film of cellophane ta In-fem liquid crystal display panel with a film of cellophane ta

1982-10-28

1985-01-08

Corbin, John K.

350347R, G02F 1133

Patent

active

044924330

ABSTRACT:
A liquid crystal display panel comprises a pair of polarizers, the polarization axes of the polarizers being substantially orthogonal each other, a pair of substrates each supporting an electrode, a film provided between one of the substrates and one of the polarizers, the film having an optical axis inclined to the polarization axis of said one of the polarizers at about 45.degree., and a liquid crystal material disposed between the substrates, molecules of the liquid crystal material being twisted at about 90.degree. between the surface of the substrates. The panel is adapted to provide a positive type display where the film is not positioned and the panel is adapted to provide a negative type display where the film is positioned.

REFERENCES:
patent: 4097128 (1978-06-01), Matsumoto et al.

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