Back-light device for a video display apparatus

Details Back-light device for a video display apparatus Back-light device for a video display apparatus

1989-05-03

1991-05-28

Pascal, Robert J.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Impedance or current regulator in the supply circuit

315309, 315311, 315DIG7, H05B 4100

Patent

active

050197495

ABSTRACT:
A back-light device increases the level of luminance produced by a fluorescent lamp at low and high ambient temperatures by increasing the ballast capacitance at these temperatures. The ballast capacitor can include one or more capacitors made from ceramic or the like. The back-light device can be used with different types of video display apparatuses which employ a transmission-type video display plate.

REFERENCES:
patent: 3746921 (1973-07-01), Marshall et al.
patent: 4559478 (1985-12-01), Fuller et al.

Affiliated with

Also associated with

Rating

Back-light device for a video display apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Back-light device for a video display apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Back-light device for a video display apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-37097