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:
Oct. 19, 2010
Filed:
Jun. 13, 2008
Hsin-ping Wu, Yilan County, TW;
Hsin-Ping Wu, Yilan County, TW;
United Microelectronics Corp., Science-Based Industrial Park, Hsinchu, TW;
Abstract
A method for forming a color filter is provided. A substrate having a passivation layer thereon is provided. The passivation layer has at least one trench therein within a peripheral region of the substrate. A first color filter layer is formed over the passivation layer to fill the trench by performing a first spin-on coating process with a first spin rate. Thereafter, the first color filter layer is patterned so as to form a plurality of first color filter blocks in a display region of the substrate and expose a portion of the passivation layer. A second color filter layer is formed over the passivation layer by performing a second spin-on coating process with a second spin rate, which is larger than the first spin rate. Next, the second color filter layer is patterned to form a plurality of second color filter blocks between the first color filter blocks respectively.