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. 07, 2011
Filed:
May. 17, 2005
Hisakazu Nakamura, Yamatokoriyama, JP;
Masumi Kubo, Ikoma, JP;
Hisakazu Nakamura, Yamatokoriyama, JP;
Masumi Kubo, Ikoma, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
There is provided a CPA-type liquid crystal display device in which deterioration in display quality due to application of stress to a liquid crystal panel is suppressed. A liquid crystal display device according to the present invention includes a first substrate; a second substrate; and a liquid crystal layer of a vertical-alignment type provided therebetween. In each picture element region, a first electrode provided on a side of the first substrate facing the liquid crystal layer includes a solid portion formed of an electrically-conductive film and a non-solid portion in which no electrically-conductive film is formed. The solid portion includes a plurality of unit solid portions each of which is substantially surrounded by the non-solid portion, the plurality of unit solid portions being arranged at least along a first direction. When a voltage is applied, with an oblique electric field generated at an edge of the non-solid portion, the liquid crystal layer within the picture element region forms a liquid crystal domain on each unit solid portion, the liquid crystal domain taking a radially-inclined orientation. The length of the unit solid portion along the first direction is 70 μm or less.