	US 7,538,790 B2
	Method and apparatus for controlling a video signal processing apparatus to prevent screen aging
Carlton Jethro Simmons, Jr., Indianapolis, Ind. (US); Richard Allen Zemer, Noblesville, Ind. (US); Mark Gilmore Mears, Zionsville, Ind. (US); Chad Andrew Lefevre, Indianapolis, Ind. (US); and Aaron Hal Dinwiddie, Cicero, Ind. (US)
Assigned to Thomson Licensing, Boulogne Billancourt (France)
Appl. No. 10/512,327 PCT Filed Apr. 21, 2003, PCT No. PCT/US03/12180 § 371(c)(1), (2), (4) Date Aug. 11, 2005, PCT Pub. No. WO03/090455, PCT Pub. Date Oct. 30, 2003.
Claims priority of provisional application 60/374885, filed on Apr. 23, 2002.
Claims priority of provisional application 60/374406, filed on Apr. 22, 2002.
Prior Publication US 2006/0130105 A1, Jun. 15, 2006
Int. Cl. H04N 3/20 (2006.01); H04N 5/57 (2006.01)

U.S. Cl. 348—173 [348/687]

19 Claims

1. A method for controlling a video display, comprising the steps of:

receiving a program signal from a signal source;

enabling display of a video program corresponding to the received program signal on a display device, wherein the video program is displayed with a display parameter at a first level;

activating a browser feature of the video display apparatus in response to a first user input;

enabling display of a browser on the display device in response to the activation of the browser feature, wherein the browser is displayed with the display parameter at a second level different from the first level, and the display parameter is automatically switched from the first level to the second level in response to the activation of the browser feature.