Liquid crystal cell employing thin wall for pre-tilt control

Details Liquid crystal cell employing thin wall for pre-tilt control Liquid crystal cell employing thin wall for pre-tilt control

1997-10-30

1999-05-25

Nguyen, Tiep H.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349147, 349122, G02F 11343, G02F 11333

Patent

active

059073802

ABSTRACT:
A liquid crystal cell has a first substrate having a pixel electrode formed thereon, wherein the pixel electrode has a characteristic width; and a second substrate having a transparent conductive electrode layer formed thereon. Liquid crystal material is disposed between the pixel electrode and the transparent electrode layer. A wall of transparent conductive material projects from the transparent conductive electrode layer toward the liquid crystal material. The width of the wall is less than the characteristic width of the pixel electrode. The wall may comprise a transparent material layer formed on the second substrate and the transparent conductive electrode layer formed on the layer of transparent material. In the alternative, the wall may comprise a transparent conductive material layer formed on the transparent conductive electrode layer. The wall provides a lateral field that controls tilt direction of said liquid crystal material. The wall can also be a transparent non-conductive material projects from the transparent conductive electrode layer toward the liquid crystal material. The slope of the side walls of the wall control the tilt direction of liquid crystal material in the cell.

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