Liquid crystal display employing light guide plate between cells

Details Liquid crystal display employing light guide plate between cells Liquid crystal display employing light guide plate between cells

1992-07-10

1994-07-12

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 42, G02F 11335, G02F 1133

Patent

active

053293886

ABSTRACT:
In a liquid crystal display system constructed from a plurality of liquid crystal display cells stacked one on top of another, a light guide adapted to transmit light only in a direction perpendicular to the display surfaces of the liquid crystal display cells is interposed between the first liquid crystal display cell disposed nearest to an observer and the second liquid crystal display cell disposed behind the first liquid crystal display cell. Because of the provision of the light guide, the images formed on the second and third liquid crystal display cells are focused through the light guide onto the rear surface of the first liquid crystal display cell, viewed from the direction of the observer. The light guide is a sheet of optical fibers or a stack of sheet like members separated by refletion films, the plane of which are perpendicular to the plane of the display.

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patent: 5148297 (1992-09-01), Ishii et al.
patent: 5159478 (1992-10-01), Akiyama et al.
"High-Resolution Display System Based on Stacked Mutually Compensated STN-LCD Layers", Conne et al, Digest of the SID 1991, pp. 755-757.
"Catalogue of Industrial Optics", Sumitomo Three M. Kubushiki Kaisha Industrial Optics.

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