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:
Nov. 18, 1997
Filed:
Jun. 11, 1996
Applicant:
Inventors:
Teunis J Vink, Eindhoven, NL;
Willem Walrave, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G02F / ;
U.S. Cl.
CPC ...
349110 ; 349113 ;
Abstract
In an LCD internal reflections are reduced by giving the inner side of a metal pattern functioning, for example as a light shield (black matrix) a porous structure. The porous structure is obtained by means of a sputtering process in which the sputtering pressure is increased for providing the porous sub-layer, while the layer is etched and/or oxidized to obtain a satisfactory density.
Vink, Teunis. (1997). Electro optic display device with porous sub-layer and method (U.S. Patent No. 5689319). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5689319
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile