Light emission control device, backlight device, liquid...

Computer graphics processing and selective visual display system – Plural physical display element control system – Segmented display elements

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C323S361000

Reexamination Certificate

active

07012578

ABSTRACT:
The present invention provides a light emission control device that can drive a plurality of cold cathode fluorescent tubes independently only by connecting a plurality of piezoelectric transformers to only one piezoelectric inverter circuit. A first phase control portion that outputs a signal for changing a phase of the third and the fourth driving control signals with respect to a phase of the first and the second driving control signals to the second driving portion, and a second phase control portion that outputs a signal for changing a phase of the fifth and the sixth driving control signals with respect to a phase of the first and the second driving control signals to the third driving portion are provided in the piezoelectric inverter circuit. Thus, the phase difference of the driving control signals is controlled, so that the output powers to the plurality of cold cathode fluorescent tubes are controlled.

REFERENCES:
patent: 5866969 (1999-02-01), Shimada et al.
patent: 6075325 (2000-06-01), Kouno et al.
patent: 5-251784 (1993-09-01), None
patent: 8-45679 (1996-02-01), None
patent: 2000-69759 (2000-03-01), None
patent: 3052938 (2000-04-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Light emission control device, backlight device, liquid... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-3614289

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.