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:
Jun. 22, 2010
Filed:
May. 22, 2007
Hideo Tanabe, Mobara, JP;
Masaru Takabatake, Mobara, JP;
Toshiki Kaneko, Chiba, JP;
Atsushi Hasegawa, Togene, JP;
Hiroko Sehata, Ooamishirasato, JP;
Hideo Tanabe, Mobara, JP;
Masaru Takabatake, Mobara, JP;
Toshiki Kaneko, Chiba, JP;
Atsushi Hasegawa, Togene, JP;
Hiroko Sehata, Ooamishirasato, JP;
Hitachi Displays, Ltd., Chiba, JP;
Abstract
A liquid crystal display device includes first and second opposed facing substrates and liquid crystal sandwiched therebetween. The first substrate includes a thin film transistor having a first electrode thereof connected to a video signal line and a second electrode thereof connected to a pixel electrode, a first silicon nitride film, an organic insulation film, a capacitance electrode, and a second silicon nitride film. The second silicon nitride film is formed at a temperature lower than a forming temperature of the first silicon nitride film. The second electrode and the pixel electrode are connected to each other via a contact hole formed by the first and second silicon nitride films. A potential different from a potential applied to the pixel electrode is applied to the capacitance electrode, and a holding capacitance is formed by the pixel electrode, the second silicon nitride film and the capacitance electrode.