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:
Mar. 09, 2004
Filed:
Jun. 26, 2001
Mark Gilmore Mears, Zionsville, IN (US);
Scott Joseph Duggan, Indianapolis, IN (US);
Thomas Edward Gospel, Carmel, IN (US);
Gene Harlow Johnson, Carmel, IN (US);
Rhomson Licensing S.A., Boulogne, FR;
Abstract
A liquid crystal display television receiver projection system uses a high-intensity discharge lamp as a back lighting source. The lamp is of the type that should not be re-started or turned on immediately after being turned off. In response to a user power off command, the display screen will immediately give a false appearance of being turned off, during a first interval of, for example, 30 seconds that immediately follows the power off command. Despite the appearance of being turned off, the lamp is maintained powered on, during the first interval. Should a user issue a power on command, before the first interval has elapsed, the user will not experience any start-up delay. Should the user not issue et power on command, during the first interval, the lamp will be de-energized.