Stable brightness vacuum fluorescent display

Details Stable brightness vacuum fluorescent display Stable brightness vacuum fluorescent display

1985-08-26

1989-08-22

Moore, David K.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

3151691, G09G 310

Patent

active

048599123

ABSTRACT:
To avoid non uniform brightness or flickering of a vacuum fluorescent display especially at low brightness levels anodes energizing pulses sent to each end of the display are coordinated with the AC filament current so that successive pulses or group of pulses are initiated at opposite phases of the filament current at sufficiently high rates to time average the light variations of a critical flicker fusion period to obtain uniform perceived display brightness.

REFERENCES:
patent: 4217578 (1980-08-01), Inami
patent: 4241294 (1980-12-01), Fisler
patent: 4358713 (1982-11-01), Senoo et al.
patent: 4401982 (1983-08-01), Miyazaki
patent: 4459514 (1984-07-01), Morimoto et al.
patent: 4488089 (1984-12-01), Shota et al.
patent: 4495445 (1985-01-01), Turney

Affiliated with

Also associated with

Rating

Stable brightness vacuum fluorescent 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 Stable brightness vacuum fluorescent display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stable brightness vacuum fluorescent display will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2418782