Reflective liquid crystal display having integral light shieldin

Details Reflective liquid crystal display having integral light shieldin Reflective liquid crystal display having integral light shieldin

1997-12-22

2000-02-08

Sikes, William L.

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

349 44, 349111, G02F 1136, G02F 11333

Patent

active

060233095

ABSTRACT:
A reflective liquid crystal display such as an AMLCD includes an array of reflective pixels located over a surface of a silicon substrate, with light transmissive regions being located between the reflective pixels. The structure includes two metal layers between the reflective pixels and the silicon substrate surface, with segments of one metal layer extending in a first direction to form row electrodes of the LCD and segments of the other metal layer extending in a second direction substantially perpendicular to the first to form column electrodes of the LCD. In order to block light that would otherwise pass through light transmissive regions between the reflective pixels, portions of the first two metal layers extend beneath the light transmissive regions between the reflective pixels. In this manner, a light-blocking function is provided without the need for a separate blocking or shading metal layer.

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"High Resolution and Brightness LCD Projector with Reflective LCD Panels", by Sata et al., Pioneer Corporation, Japan.

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