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:
Apr. 12, 2010
Yohei Nakanishi, Osaka, JP;
Masanobu Mizusaki, Osaka, JP;
Takashi Katayama, Osaka, JP;
Yuichi Kawahira, Osaka, JP;
Yohei Nakanishi, Osaka, JP;
Masanobu Mizusaki, Osaka, JP;
Takashi Katayama, Osaka, JP;
Yuichi Kawahira, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A VA-mode liquid crystal display device having a high display quality is provided. A liquid crystal display device according to the present invention includes a vertical alignment type liquid crystal layer; a first substrate and a second substrate facing each other with the liquid crystal layer interposed therebetween; a first electrode provided in the first substrate on the liquid crystal layer side and a second electrode provided in the second substrate on the liquid crystal layer side; and a first alignment film provided between the first electrode and the liquid crystal layer and a second alignment film provided between the second electrode and the liquid crystal layer. The liquid crystal display device includes a plurality of pixel areas located in a matrix. Each of the plurality of pixel areas includes a first liquid crystal domain in which a tilt direction of liquid crystal molecules at the center and in the vicinity thereof in a layer plane and in a thickness direction of the liquid crystal layer when a voltage is applied between the first electrode and the second electrode is a predetermined first direction, a second liquid crystal domain in which such a tilt direction is a predetermined second direction, a third liquid crystal domain in which such a tilt direction is predetermined third direction and a fourth liquid crystal domain in which such a tilt direction is a predetermined fourth direction; a difference between any two among the first direction, the second direction, the third direction and the fourth direction is approximately equal to an integral multiple of 90 degrees.