Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-12-10
2011-10-25
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S690000, C362S097100
Reexamination Certificate
active
08044921
ABSTRACT:
An apparatus for dynamically controlling backlight source receives a pixel input data, and outputs a pixel output data and a PWM signal. The apparatus includes image analysis unit for receiving the pixel input data and outputting image data after performing image analysis. An information unit stores relation data including luminance adjusting data and PWM adjusting data corresponding to gray level range. A luminance calculation unit receives the image data from the image analysis unit and the relation data from the information unit, and calculates a required gray level corresponding to a required luminance, and outputs a required pixel luminance data and a required PWM data according to the required gray level. A PWM adjusting unit receives the required PWM data and outputs the PWM signal. A multiplication unit receives the pixel input data and performs luminance adjustment according to the required pixel luminance data for outputting the pixel output data.
REFERENCES:
patent: 2004/0001076 (2004-01-01), Leng et al.
patent: 2006/0001641 (2006-01-01), Degwekar et al.
patent: 2007/0216636 (2007-09-01), Lo
patent: 2007/0222740 (2007-09-01), Hanada
Crawley Keith
Jianq Chyun IP Office
Novatek Microelectronics Corp.
Shalwala Bipin
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