The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 2003
Filed:
Jun. 12, 2001
Hong-Da Liu, Juipei, TW;
Industrial Technology Research Institute, Hsin-Chu, TW;
Abstract
A multi-domain wide viewing angle liquid crystal display (LCD) has a plurality of superimposed spacing wall-bump structures formed on a pair of parallel substrates. Each superimposed spacing wall-bump (SSWB) structure includes a surrounding wall-bump structure formed around a pixel area on a first substrate and a central wall-bump structure formed in a central portion of the pixel area on a second substrate. Wall-bumps of many different shapes can be used for the central wall-bump structure. The superimposed spacing wall-bump structure provides pre-tilted angles for liquid crystal molecules and results in orderly alignment of liquid crystal molecules when an external voltage is applied. By means of the fringe field effect to tilt liquid crystal molecules, a multi-domain LCD cell can be established after a voltage is applied. The manufacturing method for the SSWB needs neither rubbing process nor polymer stabilized ultraviolet curing process. The multi-domain wide viewing angle LCD provides fast response speed for its application and higher transmittance than conventional multi-domain wide-viewing angle LCDs.