Backlight driving system for liquid crystal display

Details Backlight driving system for liquid crystal display Backlight driving system for liquid crystal display

2008-03-07

2010-02-16

Vu, David Hung (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

C315S225000, C315S274000, C315S282000

Reexamination Certificate

active

07663322

ABSTRACT:
There is provided a backlight driving system for a liquid crystal display that can reduce size and weight of a product because a DC-DC converter is not used when commercial AC power is converted into lamp driving power. A backlight driving system for a liquid crystal display according to an aspect of the invention includes a power supply unit converting commercial alternating current (AC) power into direct current (DC) power having a voltage level set beforehand, an inverter unit converting the DC power from the power supply unit into AC power at a one-to-one conversion ratio set beforehand, a boosting unit boosting the AC power from the inverter unit into lamp lighting power set beforehand; and a lamp group receiving the lamp lighting power from the boosting unit to emit light.

REFERENCES:
patent: 4030014 (1977-06-01), Chana et al.
patent: 5206800 (1993-04-01), Smith
patent: 5872429 (1999-02-01), Xia et al.
patent: 6362575 (2002-03-01), Chang et al.
patent: 7378801 (2008-05-01), Jeon
patent: 7449842 (2008-11-01), Miyazaki et al.
patent: 2003/0156435 (2003-08-01), Morimoto et al.
patent: 2004/0145584 (2004-07-01), Lee et al.
patent: 2004/0207339 (2004-10-01), Lin et al.
patent: 2005/0105305 (2005-05-01), Sawada et al.
patent: 2005/0237010 (2005-10-01), Ying et al.
patent: 2006/0125414 (2006-06-01), Oda et al.
patent: 2007/0114953 (2007-05-01), Kim et al.
patent: 2007/0146565 (2007-06-01), Jeon et al.
patent: 2007/0190890 (2007-08-01), Hsu et al.
patent: 2003-0003684 (2003-01-01), None
patent: 10-2007-0055319 (2007-05-01), None
patent: 10-2007-0068804 (2007-07-01), None
patent: 2007-0096242 (2007-10-01), None
Korean Intellectual Property Office, Office Action mailed Apr. 4, 2008 and English Translation.

Affiliated with

Also associated with

Rating

Backlight driving system for liquid crystal display 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 driving system for liquid crystal display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Backlight driving system for liquid crystal display will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4150811