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. 22, 2013
Filed:
Dec. 06, 2011
Takao Nakamura, Mobara, JP;
Kazuki Ishii, Sakura, JP;
Daisuke Mutou, Mobara, JP;
Hidenori Seki, Chiba, JP;
Takao Nakamura, Mobara, JP;
Kazuki Ishii, Sakura, JP;
Daisuke Mutou, Mobara, JP;
Hidenori Seki, Chiba, JP;
Hitachi Displays, Ltd., Chiba, JP;
Abstract
In a liquid crystal display device that uses a top gate TFT, a contact hole is formed to connect to an image signal line. An inorganic passivation film and an organic passivation film are formed in this order so as to cover the TFT, on which a common electrode is formed. Then, an interlayer insulating film is formed on the common electrode. A through hole for gas release is formed in the interlayer insulating film. The diameter of the through hole is greater than the diameter of the contact hole, so as to be able to easily release gas from the organic passivation film, and to prevent the interlayer insulating film from peeling off.