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. 22, 2010
Filed:
Jun. 07, 2005
Masaki Matsumori, Hitachi, JP;
Yasushi Tomioka, Hitachinaka, JP;
Shigeru Matsuyama, Mobara, JP;
Hitachi Displays, Ltd., Chiba, JP;
Abstract
It is an object to provide a liquid crystal display which reduces unsatisfactory display caused by distorted initial alignment direction in a liquid crystal alignment layer for IPS type displays, realizes stable liquid crystal alignment, is high in mass-productivity, and produces high-quality images of increased contrast ratio. The liquid crystal display contains alignment layersplaced between a pair of substratesand, at least one of which is transparent, liquid crystal layer' sealed between the alignment layers, common electrodeand source electrodefor applying an electrical field to the liquid crystal layer, thin-film transistors connected to each of these electrodes, polarizer plateprovided on at least one of the substrates, wherein at least one of the alignment layersis composed of a photo-reactive polyimide and/or polyamic acid which can be provided with a liquid crystal alignment capacity by being irradiated with essentially linearly polarized light.