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:
Jun. 30, 2009
Filed:
Sep. 14, 2006
Ching-wen Hsiao, Pan Chiao, TW;
Bang-hao Wu, Kao Hsiung, TW;
Hsin-chun Chiang, Hsin Chu, TW;
Yu-ming Chen, Hsin Chu, TW;
Ching-Wen Hsiao, Pan Chiao, TW;
Bang-Hao Wu, Kao Hsiung, TW;
Hsin-Chun Chiang, Hsin Chu, TW;
Yu-Ming Chen, Hsin Chu, TW;
Taiwan TFT LCD Association, Hsinchu, TW;
Chunghwa Picture Tubes, Ltd., Taoyuan, TW;
Au Optronics Corp., Hsinchu, TW;
Quanta Display Inc., Tao Yuan Shien, TW;
Hannstar Display Corp., Taipei, TW;
Chi Mei Optoelectronics Corp., Tainan County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Toppoly Optoelectronics Corp., Miao-Li County, TW;
Abstract
A method to control the pretilt angle of a liquid crystal device is disclosed. The claimed invention provides two substrates and at least one vertical alignment layers, which are fabricated on one side of each substrate and are opposite to each other. Moreover, a liquid crystal layer is sandwiched between the alignment layers, and the preferred embodiment of the liquid crystal device has an Optically Compensated Birefrigence (OCB) configuration. More particularly, before the process of alignment for the liquid crystal device is performed, a pretilt angle disclosed in the present invention is adjusted since at least one vertical alignment layer is treated with a particle beam generated by plasma or ions. The pretilt angle can range between 5 and 85 degrees.