Normally black mode liquid crystal display apparatus having liqu

Details Normally black mode liquid crystal display apparatus having liqu Normally black mode liquid crystal display apparatus having liqu

1994-09-14

1996-03-05

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 63, G02F 11335

Patent

active

054972566

ABSTRACT:
A liquid crystal display includes a liquid crystal cell including a pair of substrates and a liquid crystal filled between the substrates, and a phase plate located adjacent to one of the substrates of the liquid crystal cell and having a retardation value of 400 to 500 nm. The wavelength dependency of the retardation value of the phase plate being substantially uniform.

REFERENCES:
patent: 5184236 (1993-02-01), Miyashita et al.
patent: 5237438 (1993-08-01), Miyashita et al.

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