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:
May. 07, 2013
Filed:
Jul. 14, 2009
Hisashi Nagata, Osaka, JP;
Hisashi Nagata, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
To prevent occurrence of display roughness in a PSA-type liquid crystal display device, a liquid crystal display device of the present invention includes: a first substratewhich includes a signal linefor supplying a display signal to thin film transistors, an insulating layerprovided on the signal line, and pixel electrodesprovided in a matrix arrangement; a second substratewhich includes a counter electrode; a liquid crystal layerinterposed between the first substrateand the second substrate; a vertical alignment filmprovided between the first substrateand the liquid crystal layer; and an alignment sustaining layerprovided between the vertical alignment filmand the liquid crystal layerfor regulating an orientation of liquid crystal moleculesincluded in the liquid crystal layer. In a region extending between two of the pixel electrodesand extending over the signal line, the insulating layerhas a first elevated portionextending along the signal lineand protruding above the pixel electrodestoward the liquid crystal layer