Patent ID: 6392695
Filing Date: 2002-05-21
Classification: H04N

Abstract:
An image display device comprising:image and sound reproducing means for reproducing at least one of an image and sound wherein said image and sound reproducing means includes, first image and sound reproducing means for reproducing one of a first image and a first sound; second image and sound reproducing means for reproducing a second image and a second sound; display means for displaying a selected one of said first or second image; deterioration prevention means for, preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means; preventing burn-in of a screen of said display means, when a stationary image is displayed on the screen of said display means for at least a first predetermined time; deactivating said first image and sound reproducing means at a second predetermined time after said second image and sound reproducing device is activated while said first image is displayed by said display means; wherein said first image and sound reproducing means reproduces only said first sound; said deterioration prevention means having an image adjusting means for adjusting a condition of an image on the screen; said image adjusting means controls an image adjustment value for said second image; said image adjusting means provides at least one of a function, to reduce the image adjustment value for said second image when said first sound is reproduced for at least a third predetermined time, and to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.