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:
Jan. 21, 2014
Filed:
Dec. 30, 2011
Takenori Hirota, Suwa, JP;
Tomokazu Umeno, Shiojiri, JP;
Takenori Hirota, Suwa, JP;
Tomokazu Umeno, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid crystal display device includes a device substrate that includes a pixel electrode, a counter substrate that is formed opposite the device substrate and that includes a counter electrode, a liquid crystal layer that is formed between the device substrate and the counter substrate, a first alignment layer that is formed on a side of the device substrate which is closer to the liquid crystal layer, and a second alignment layer that is formed on a side of the counter substrate which is closer to the liquid crystal layer. The pixel electrode is made of a material having a work function smaller than that of a material for the counter electrode. The first alignment layer has substantially the same density as that of the second alignment layer, and the thickness dof the first alignment layer is greater than the thickness dof the second alignment layer.