Method and apparatus for dynamic burnout imprinting...

Details Method and apparatus for dynamic burnout imprinting... Method and apparatus for dynamic burnout imprinting...

2006-06-06

2006-06-06

Hsia, Sherrie (Department: 2614)

Television

Cathode-ray tube burn-in prevention

C348S558000, C348S744000, C348S556000, C348S913000

Reexamination Certificate

active

07057640

ABSTRACT:
The present invention provides improved burnout imprinting prevention by slowly moving the position of screen content to ensure that no one area of the guns is unused for a long period of time. Optical and/or mechanical elements are provided to redirect the projected image to the center of the screen. As the image moves on the projection guns the optical elements are positioned accordingly to shift the projected image such that the viewable image is fixed.

REFERENCES:
patent: 4589739 (1986-05-01), Goodman
patent: 4931786 (1990-06-01), Selby, III
patent: 5313137 (1994-05-01), Wittey
patent: 5671076 (1997-09-01), Matsubara et al.
patent: 6226046 (2001-05-01), Yamagata et al.
patent: 6486900 (2002-11-01), Shen et al.
patent: 0434241 (1991-06-01), None

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