Display screen burn-in prevention device and burn-in...

Details Display screen burn-in prevention device and burn-in... Display screen burn-in prevention device and burn-in...

2007-09-18

2007-09-18

Tung, Kee M. (Department: 2628)

Television

Cathode-ray tube burn-in prevention

C345S617000

Reexamination Certificate

active

10816855

ABSTRACT:
A burn-in prevention image signal is generated by subjecting an input image signal to blurring and then to contrast inversion to invert the contrast of the signal luminance level. The burn-in prevention image signal is used when the input image is a still image that does not change for a predetermined period.

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patent: 2004/0165064 (2004-08-01), Weitbruch et al.
patent: 8-248935 (1996-09-01), None

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