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:
Oct. 19, 2004
Filed:
Sep. 04, 2001
Applicant:
Inventors:
David G. Pires, Phoenix, AZ (US);
Charles I. Zovko, Chandler, AZ (US);
Assignee:
Durel Corporation, Chandler, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 3/302 ; H01J 1/62 ;
U.S. Cl.
CPC ...
H05B 3/302 ; H01J 1/62 ;
Abstract
A light source producing predominantly blue light is tuned to the transmission bands of color LCD subpixels for optimum light transmission and color separation. The spectral output of the light source has three peaks located in the same areas of the spectrum where LCD color filters transmit most of the light, thereby providing a balanced white. It has been discovered that brightness enhancing films aid in the color conversion by enhancing the cascaded peaks, in addition to increasing the brightness of the light source.