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:
Jul. 14, 1998
Filed:
Sep. 27, 1996
Ram W Sabnis, Rolla, MO (US);
Jonathan W Mayo, Rolla, MO (US);
Edith G Hays, Rolla, MO (US);
Terry L Brewer, Rolla, MO (US);
Michael D Stroder, Springfield, MO (US);
Akira Yanagimoto, Tokyo, JP;
Yasuhisa Sone, Chiba, JP;
Yoshitane Watanabe, Tokyo, JP;
Kiyomi Ema, Chiba, JP;
Brewer Science, Inc., Rolla, MO (US);
Nissan Chemical Industries, Ltd., Chiyoda-ku, JP;
Abstract
An organic black matrix having high resistivity (.gtoreq.10.sup.11 ohm/square), high optical density (.gtoreq.2.0) at ultra thin film thicknesses (.ltoreq.1.0 microns) for improved STN and TFT pixel display applications is made possible by combining polyimide/dye solutions and mixed metal oxide pigment dispersions at a weight/weight ratio of dye to pigment of 1:15 to 3:15. The need for low resistivity carbon black, as a replacement for sputtered chrome, is negated.