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:
Feb. 27, 2012
Filed:
Oct. 20, 2010
Kunpei Kobayashi, Tachikawa, JP;
Kunpei Kobayashi, Tachikawa, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
A liquid crystal display device includes a first substrate having one surface on which a first electrode is provided, a second substrate which is provided with a second electrode, and a liquid crystal layer which is interposed between the first and second substrates. Negative dielectric anisotropy homeotropic aligning films are formed on mutually faced surfaces of the first and second electrodes, respectively. A pair of polarizing plates are arranged on a side of the other surface opposite to the one surface of each substrate. A pair of optical compensation layers are arranged respectively between the other surfaces of the substrates and the polarizing plates, and give a retardation having a value which is substantially ¼ of a wavelength λ of transmitted visible light to the transmitted visible light.