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:
Mar. 27, 2001
Filed:
Jul. 19, 1999
Chun-Hsiang Wen, Hsinchu, TW;
Shu-Huei Cheng, Hsinchu, TW;
Hua-Chi Cheng, Hsinchu, TW;
Yaw-Ting Wu, Ping-Chen, TW;
Ming-Hsiang Chan, Chutung, TW;
Jun-Ichi Yasukawa, Chigasaki, JP;
Hajime Kuwahara, Narashino, JP;
Other;
Abstract
The invention discloses a liquid crystal panel which is characterized in that each color filter is compartmentalized by the black matrix and the spacers are positioned on the region confined by the black matrix and the spacer bottom connects the first conductive film. The invention also discloses a process for producing liquid crystal panel, which is characterized in that the color filters and spacers are produced by coating a four-level photoresist and by a first exposure step which is masked by a four-level photoresist; the red region, green region and blue region are produced by development and electro-deposition; and the spacers are produced by a second exposure step which is masked by a spacer reticle, a development step which emerges the first conductive film within a region confined by the black matrix, and a step of electrodeposition coating compositions on the emerged region of the first conductive film. The spacers position and sizes could be easily determined by spacer reticle and high quality display performances could be achieved.