Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2011-07-05
2011-07-05
Nguyen, Chanh (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
Reexamination Certificate
active
07973758
ABSTRACT:
An apparatus and method for display backlight control are disclosed. The method includes: finding statistics characteristics of pixels in a frame; using statistics characteristics to refer to a table for outputting representative gamma value; using a user setting value and representative gamma value for calculating a backlight setting range; starting from the user setting value, using a backlight adjusting value obtained from subtracting or adding a predetermined value from current backlight setting value to control a backlight module in each predetermined time period; using boundary value of the current backlight setting range as backlight adjusting value when the backlight adjusting value is beyond the backlight setting range; using current backlight adjusting value and user setting value to refer to an image compensation table for finding an image compensation value; performing compensation operations on input image data according to the backlight adjusting value and the user setting value of backlight luminance.
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Jianq Chyun IP Office
Nguyen Chanh
Novatek Microelectronics Corp.
Park Sanghyuk
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