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. 26, 1993
Filed:
Feb. 01, 1990
Applicant:
Inventors:
Takehiro Kakizaki, Kanagawa, JP;
Minoru Ohzeki, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ; G09G / ;
U.S. Cl.
CPC ...
345 30 ; 313478 ; 358 59 ; 345 32 ;
Abstract
A jumbo-size picture display device arranged such that a number of red, green and blue fluorescent trios are formed in an X-Y matrix form. A shading material for controlling the color temperature is formed above predetermined red, green and blue fluorescent segments, whereby the color temperature can be corrected in a simple manner. The quality of the jumbo-size picture display device is improved and the manufacturing costs are reduced.