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. 10, 2009
Filed:
Dec. 26, 2006
Applicants:
Aki Sakai, Mobara, JP;
Noboru Kunimatsu, Chiba, JP;
Hidehiro Sonoda, Mobara, JP;
Shigeru Matsuyama, Mobara, JP;
Inventors:
Aki Sakai, Mobara, JP;
Noboru Kunimatsu, Chiba, JP;
Hidehiro Sonoda, Mobara, JP;
Shigeru Matsuyama, Mobara, JP;
Assignee:
Hitachi Displays, Ltd., Chiba, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1337 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a liquid crystal display device using a photodecomposition type light orientation film, the deterioration of display performance due to an impurity resulting from a light orientation treatment of the orientation film is suppressed to enable high-quality image display. In the orientation film to which a liquid crystal orientation function is provided, the amount of decomposition product due to the orientation film is 3957.5 ng or less per 100 cm.