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:
May. 26, 2015
Filed:
Jul. 07, 2011
Applicants:
Shigeru Senbonmatsu, Chiba, JP;
Shuhei Yamamoto, Chiba, JP;
Inventors:
Shigeru Senbonmatsu, Chiba, JP;
Shuhei Yamamoto, Chiba, JP;
Assignee:
SEIKO INSTRUMENTS INC., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/02 (2006.01); G02F 1/1337 (2006.01); G02F 1/1333 (2006.01); G02F 1/139 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1337 (2013.01); G02F 1/133345 (2013.01); G02F 1/1391 (2013.01);
Abstract
In a conventional bistable liquid crystal device, switching characteristics fluctuate among panels and there is a problem in mass productivity. As an intermediate layer, an uneven film is inserted between a low anchoring layer and ITO. The uneven film has an average surface roughness of 2 nm or less, which is measured by an atomic force microscope. In this manner, the low anchoring layer is not affected by the surface shape of the ITO film which differs among panels, and the switching characteristics are stabilized.