Image display device employing selective or asymmetrical...

Details Image display device employing selective or asymmetrical... Image display device employing selective or asymmetrical...

2005-05-17

2005-05-17

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S606000, C345S619000, C345S629000, C345S642000, C382S254000, C382S263000, C382S264000, C382S266000, C382S269000, C382S176000

Reexamination Certificate

active

06894699

ABSTRACT:
An image display device includes a smoothing unit that filters the image data to be displayed. According to one aspect of the invention, only bright parts of the image that are adjacent to dark parts are smoothed, thereby improving the sharpness of dark dots and lines displayed on a bright background. According to another aspect, different primary colors are smoothed with different characteristics, enabling unwanted colored tinges to be removed from the edges of white areas. According to still another aspect, smoothing moves the luminance centroids of all primary colors in a direction in which the display screen is scanned, to reduce ringing effects without needless loss of edge sharpness.

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patent: A9181920 (1997-07-01), None
patent: A2000115542 (2000-04-01), None

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