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. 17, 2004
Filed:
May. 14, 1999
Applicant:
Inventors:
Peter J. Janssen, Scarborough, NY (US);
George A. Melnik, Montrose, NY (US);
Sergei Yevgenyevich Yakovenko, Minsk, BY;
Victor Alexeevich Konovalov, Minsk, BY;
Anatoli Alexeevich Muravski, Minsk, BY;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 ;
U.S. Cl.
CPC ...
G02F 1/1333 ;
Abstract
The electrical asymmetry in certain electro-optic display device structures employing orientation layers, evidenced as an internal DC voltage, is reduced or eliminated by inserting a barrier layer between the orienting layers and adjacent electrode layers, thereby reducing or eliminating a DC offset which leads to flicker in a display image when such devices are driven with an AC waveform.