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:
Jul. 20, 2010
Filed:
Sep. 24, 2008
Hideo Tanabe, Mobara, JP;
Masaru Takabatake, Mobara, JP;
Manabu Yamashita, Mobara, JP;
Hitachi Displays, Ltd., Chiba, JP;
Abstract
To take measures against defects in the conduction by preventing shavings of the orientation film from getting into the terminal portion for liquid crystal display devices using an organic passivation film on a TFT substrate. Image signal linesextend to a terminal portion. The image signal lines, excluding the terminal portion, are covered with an inorganic passivation filmand an organic passivation film. In the terminal portion, terminal portion through holes are created in the organic passivation filmand the inorganic passivation film, in order to make electrical connection possible. The terminal portion is covered with an ITO filmin order to protect the video signal lines. The taper angle θ in the organic passivation filmin the terminal portion through holes is 35 degrees or less, and the thickness of the organic passivation filmin the periphery of the terminal portion through holes is 300 nm to 600 nm, so that shavings of the orientation film can be prevented from getting into the terminal portion, and thus, defects in the conduction can be prevented.