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:
Oct. 05, 1999
Filed:
Dec. 30, 1997
Applicant:
Inventors:
Mitsuru Ishibashi, Chiba, JP;
Hideyuki Sasaki, Kanagawa, JP;
Tatsuo Nomaki, Kanagawa, JP;
Shigeki Terada, Saitama, JP;
Hirofumi Ishii, Saitama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
349126 ; 349191 ;
Abstract
An LC aligning substrate (3) is used for an LCD. The substrate is rubbed with a roller (5). The roller has irregularities on the surface thereof, or instead, one of the roller and substrate is vertically vibrated. As a result, the orientation of molecules at the surface of the substrate is finely changed to conceal sharp changes in the orientation of the surface molecules, thereby preventing the LCD from displaying defective rubbing stripes.