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:
Nov. 11, 2008
Filed:
Jan. 18, 2007
Chun-hsien Lee, Tainan, TW;
Chun-Hsien Lee, Tainan, TW;
Chi-Mei Corporation, Tainan County, TW;
Abstract
A photosensitive resin composition for a black matrix comprises (A) an alkali-soluble resin; (B) a photopolymerizable monomer; (C) a photoinitiator; (D) a solvent; and (E) a black pigment; wherein the alkali-soluble resin (A) comprises a functional group having a general formula (a-1); viscosity of said photosensitive resin composition for the black matrix is 0.5-4.0 cps at 25° C.; the solid content of said photosensitive resin composition is 5-17.5 wt. %; and said solvent (D) has a saturated vapor pressure below 4.5 mmHg at 20° C.; which presents no pinhole on the surface after low pressure drying, no line and cloud defect on the film, good inner uniformity of the coated film and high photosensitivity after pre-bake, high heat resistance for black matrix after post-bake, especially no poor coating on substrates of LCD by the slit coating. (Each of R is independently H, linear or branch alkyl of C1-C5, phenyl or halogen.)