Homeotropic multi-domain

Details Homeotropic multi-domain Homeotropic multi-domain

1999-05-10

2000-11-07

Dudek, James A.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349139, G02F 11337, G02F 11343

Patent

active

061444340

ABSTRACT:
A liquid crystal display of homeotropic alignment mode having a multi-domain comprising: an upper and a lower substrates opposing each other with a selected cell gap; a liquid crystal layer sandwiched between said substrates and composed of a plurality of liquid crystal molecules; a first driving electrode and a second driving electrode both extended in parallel in a first direction and formed at inner surface of the lower substrate with a selected distance; and a third driving electrode and a fourth driving electrode both extended in parallel in a second direction which is substantially perpendicular to the first direction and both formed at inner surface of the upper substrate with a selected distance, wherein long axes of the liquid crystal molecules are arranged perpendicular to the substrates in the absence of electric field between the electrodes, and in the presence of electric field, the long axes of the liquid crystal molecules are tilted with respect to the center of the electric field so that the long axes of the liquid crystal molecules are arranged parallel to the electric field, wherein the cell gap is smaller than the distances between the first electrode and the second electrode and between the third electrode and the fourth electrode, and wherein an equivalent voltage is applied to the first and the third electrodes, however the voltage applied to the second and the fourth electrodes has voltage difference with the voltage applied to the first electrode.

REFERENCES:
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patent: 5412561 (1995-05-01), Rosenshein et al.
patent: 5710611 (1998-01-01), Suzuki et al.
patent: 5745206 (1998-04-01), Koike et al.
patent: 5852485 (1998-12-01), Shimada et al.
patent: 5946060 (1999-08-01), Nishiki et al.
patent: 5963290 (1999-10-01), Murai et al.
patent: 5969781 (1999-10-01), Matsuyama et al.
Lien et al "Ridge and Fringe-Field Multi-Domain Homeotropic LCD" SID 98 Digest, May 1998.
Konovalov et al "Multi-Domain Vertically Aligned Mode" SID 98 Digest, May 1998.

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