Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2006-01-17
2006-01-17
Bella, Matthew C. (Department: 2676)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S063000, C345S077000, C345S214000, C345S426000, C345S589000, C345S691000, C382S167000, C382S270000, C382S274000
Reexamination Certificate
active
06987521
ABSTRACT:
A detection unit which includes an image display panel, brightness averaging unit, scene changeover detection unit, and brightness suppression unit in order to provide an image display apparatus having an ABL that does not give the observer any visual sense of incompatibility without increasing the circuit scale determines the presence/absence of a scene changeover on the basis of the frame differential or second order differential of the average brightness. If a scene changeover takes place, the display brightness is changed quickly, and if no scene changeover occurs, changed slowly.
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Ando Muneki
Mori Makiko
Bella Matthew C.
Canon Kabushiki Kaisha
Caschera Antonio
Fitzpatrick ,Cella, Harper & Scinto
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