Backlight dimming and LCD amplitude boost

Details Backlight dimming and LCD amplitude boost Backlight dimming and LCD amplitude boost

2007-02-13

2007-02-13

Tung, Kee M. (Department: 2628)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S207000, C345S211000, C345S690000

Reexamination Certificate

active

10316521

ABSTRACT:
Embodiments of the present invention generally provide m Methods and apparatus for reducing power consumption of backlit displays are described. Power consumption is reduced by dimming backlighting by a first scale factor and boosting pixel values by a second scale factor to compensate for the dimming. The scale factors may be constant values. Alternately, one or both of the scale factors may be determined based on pixel values for one or more frames to be displayed and/or one or more frames that have been displayed. For example, scale factors may be calculated based on an average linear amplitude of one or more frames of pixel values or from a maximum pixel value of one or more frames of pixel values. A graphical processing system is described including an integrated circuit capable of transforming a pixel value from a gamma-compensated space to a linear space.

REFERENCES:
patent: 6452582 (2002-09-01), Rolston
patent: 6654082 (2003-11-01), Sohda et al.
patent: 2005/0122287 (2005-06-01), Nishitani et al.

Affiliated with

Also associated with

Rating

Backlight dimming and LCD amplitude boost does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Backlight dimming and LCD amplitude boost, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Backlight dimming and LCD amplitude boost will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3875139