Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1974-10-15
1977-01-04
Segal, Robert
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
315169R, H05B 3700
Patent
active
040016366
ABSTRACT:
An AC drive type display apparatus including a display panel having groups of transverse electrodes and vertical electrodes which are disposed in cross form across a discharge gap and having cross points which are made luminescent by applying an AC sustaining drive voltage, a turn-on signal and turn-off signal. A drive circuit including transistors dispoed in a matrix is provided and has means for commonly connecting the emitters or bases of the transistors in each transverse line of the matrix and means for connecting the emitters or the bases which are commonly connected, through a first diode to a sustaining drive source. A first selective switch circuit for applying the turn-on signal or the turn-off signal by selectively driving the transverse line by connecting it to the emitters or the bases which are commonly connected is provided and means are provided for commonly connecting the bases or the emitters in each vertical line of the matrix. A means for connecting the bases or the emitters which are commonly connected, through a second diode to the sustaining drive source are provided and a second selective switch circuit for selecting the vertical lines which are commonly connected is provided wherein the collectors of the transistors of the drive circuit are connected to the electrodes in one or both of the groups of the electrodes in the transverse and the vertical direction of the display panel.
REFERENCES:
patent: 3611296 (1971-10-01), Johnson
patent: 3852609 (1974-12-01), Peters
Dahl Lawrence J.
Mitsubishi Denki & Kabushiki Kaisha
Segal Robert
LandOfFree
AC drive discharge type 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 AC drive discharge type display apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and AC drive discharge type display apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-256891