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. 15, 1998
Filed:
Sep. 15, 1995
Applicant:
Inventors:
Scott F Rowlands, Santa Rosa, CA (US);
Scott C McEldowney, Windsor, CA (US);
Steven P Bandettini, Forestville, CA (US);
Assignee:
Optical Coating Laboratory, Inc., Santa Rosa, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
349110 ; 349111 ; 349105 ; 359585 ; 359589 ;
Abstract
A very low reflectance optical coating comprising alternating layers of materials such as chromium oxide and chromium, silicon oxide and silicon, titanium oxide and titanium, and tantalum oxide and tantalum is suitable for use as a black shadow mask in liquid crystal displays, among various applications. Certain designs such as silicon oxide/silicon benefit from a transmission-decreasing overcoat of material such as molybdenum, germanium or titanium.