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. 01, 2011
Filed:
May. 17, 2011
Ji NO Lee, Goyang-Si, KR;
Ji No Lee, Goyang-Si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A method of fabricating a halftone mask, which includes the steps of: forming shielding patterns on a transparent substrate; forming a first halftone transmission pattern on the transparent substrate between the shielding patterns; and forming a second halftone transmission pattern on the first halftone transmission pattern, wherein a width of the second halftone transmission pattern is narrower than a width of the first halftone transmission pattern, wherein the shielding patterns are in contact with a border of the first halftone transmission pattern; and wherein portions of the first halftone transmission pattern, at gaps that are present in between the shielding patterns and the second halftone transmission pattern, are uncovered by the second halftone transmission pattern.