Backlight unit and display device having the same

Details Backlight unit and display device having the same Backlight unit and display device having the same

2007-12-28

2010-02-23

Epps, Georgia Y (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C250S226000, C250S2140AL

Reexamination Certificate

active

07667170

ABSTRACT:
Provided are a backlight unit and a display device having the same. The display device according to an embodiment includes a display panel and a backlight unit for supplying light to the display panel. The backlight unit according to an embodiment includes a light guide plate, a light source disposed at a side of the light guide plate, a sensor sensing brightness or color temperature of natural light, an adaptive controller generating a voltage level signal to compensate for the brightness or color temperature of natural light, and a light source driver supplying a voltage corresponding to the voltage level signal to the light source. Thus, although the brightness or the color temperature of the natural light varies, uniform brightness or color temperature can be achieved by adjusting the brightness or the color temperature of the artificial light generated from the light source, thus displaying high-definition and high-quality images.

REFERENCES:
patent: 6447132 (2002-09-01), Harter, Jr.
patent: 6795137 (2004-09-01), Whitted et al.
patent: 6888528 (2005-05-01), Rai et al.
patent: 7213955 (2007-05-01), Ladouceur et al.
patent: 7423626 (2008-09-01), Yamamoto et al.
patent: 2002/0159002 (2002-10-01), Chang

Affiliated with

Also associated with

Rating

Backlight unit and display device having the same 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 unit and display device having the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Backlight unit and display device having the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4158558