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:
Sep. 21, 2004
Filed:
Aug. 27, 2002
Applicant:
Inventors:
Rong-Chang Liang, Cupertino, CA (US);
Abbas Hosseini, Mountain View, CA (US);
Hsiao-Ken Chuang, Arcadia, CA (US);
Assignee:
SiPix Imaging, Inc., Milpitas, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 2/600 ; G02F 1/03 ; G02F 1/29 ; G09G 3/34 ; G09G 1/704 ; H01B 3/20 ;
U.S. Cl.
CPC ...
G02B 2/600 ; G02F 1/03 ; G02F 1/29 ; G09G 3/34 ; G09G 1/704 ; H01B 3/20 ;
Abstract
This invention relates to an electrophoretic display comprising isolated cells of well-defined shape, size and aspect ratio which cells have internal sub relief structures and are filled with charged pigment particles dispersed in a dielectric solvent. The display shows an improved contrast ratio and resistance against shear and compression pressures. The display may have the traditional up/down switching mode, an in-plane switching mode or a dual switching mode.