Lamp circuit of liquid crystal device backlight source

Details Lamp circuit of liquid crystal device backlight source Lamp circuit of liquid crystal device backlight source

2006-02-16

2010-11-16

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

C315S282000, C315S312000

Reexamination Certificate

active

07834559

ABSTRACT:
Disclosed is an improved lamp circuit of a liquid crystal device (LCD) backlight source, comprising a printed circuit board (PCB) for lamp initialization having a control circuit and a first connector thereon; a first lamp connection board disposed between the first lamp connection board and a second lamp connection board and being lamps of the LCD backlight source; a second lamp connection board having a second connector and transformers thereon, the transformers each corresponding to one of the lamps; and a low voltage wire set connected between the first connector on the PCB for lamp initialization and the second connector on the second lamp connection board, wherein a signal issued from the first connector on the PCB for lamp initialization is transmitted through the low voltage wire set to the second connector on the first PCB for lamp initialization and then to a corresponding one of the transformers so that the lamps may be driven to operate. With use of the present invention, number of the used connectors may be reduced and arrangement issue of the high voltage wires may be obviated, making volume of the PCB for lamp initialization allowed to be reduced and cost of the lamp circuit lowered.

REFERENCES:
patent: 7411357 (2008-08-01), Lee
patent: 2005/0007333 (2005-01-01), Han et al.
patent: 2005/0078080 (2005-04-01), Kang et al.
patent: 2005/0134199 (2005-06-01), Suzuki et al.
patent: 2005/0253537 (2005-11-01), Jang et al.
patent: 2005/0269976 (2005-12-01), Chou et al.
patent: 2006/0001385 (2006-01-01), Lee
patent: 2006/0023471 (2006-02-01), Ahn et al.
patent: 2006/0043910 (2006-03-01), Chan et al.
patent: 2006/0061305 (2006-03-01), Ahn et al.
patent: 2006/0139013 (2006-06-01), Yoo et al.
patent: 2006/0220593 (2006-10-01), Ball
patent: 2006/0238987 (2006-10-01), Park et al.
patent: 2006/0279232 (2006-12-01), Takahama et al.

Affiliated with

Also associated with

Rating

Lamp circuit of liquid crystal device backlight source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lamp circuit of liquid crystal device backlight source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lamp circuit of liquid crystal device backlight source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4186603