High contrast micro display with off-axis illumination

Details High contrast micro display with off-axis illumination High contrast micro display with off-axis illumination

1998-06-04

2000-05-23

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349 62, 349 64, 349146, 362 31, G02F 11343, G02F 11333, F21X 704

Patent

active

060671432

ABSTRACT:
A liquid crystal display of improved contrast is provided. Image contrast is determined by the ratio of light from the display pixels that are in an on state to the light from the display pixels that are in an off state. The disclosed system improves on the image contrast by selecting the illumination direction and the panel orientation in such a way as to minimize the amount of light entering the viewing field that is due to scattered and/or diffracted light from the fine features of the display panel.

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