Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
1998-07-07
2001-04-03
Shalwala, Bipin (Department: 2778)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S060000, C345S062000, C345S211000, C315S169100, C315S169400
Reexamination Certificate
active
06211865
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a driving apparatus of a plasma display panel.
2. Description of Related Art
As a flat display apparatus, a plasma display panel (hereinafter, referred to as a PDP) of an AC (alternating current discharge) type is known.
Although the AC type plasma display panel performs a display by supplying various pulses to row electrodes and column electrodes which are arranged so as to perpendicularly cross each other, there is a problem that a high-withstand voltage transistor which can withstand a potential difference of a power source has to be used in a pulse generating circuit.
OBJECT AND SUMMARY OF THE INVENTION
The invention has been made to solve the problem described above, and it is an object of the invention to provide a driving apparatus of a plasma display panel in which a plurality of driving pulses having different polarities can be supplied to the same row electrodes of a PDP by a transistor having a relatively low withstanding voltage.
According to the first aspect of the invention, there is provided a driving apparatus of a plasma display panel, comprising: column electrode driving means for supplying pixel data pulses corresponding to pixel data to a plurality of column electrodes arranged in the vertical direction of the plasma display panel; and row electrode driving means for supplying first pulses of a predetermined polarity and second pulses of a polarity different from the predetermined polarity to a plurality of row electrodes which cross the column electrodes and are arranged in the horizontal direction, wherein the column electrode driving means has: a first pulse generating circuit for generating the first pulses and supplying them to a first line; a second pulse generating circuit for generating the second pulses and supplying them to the row electrodes; and a switching element which is turned on at least for a period of time during which the first pulse generating circuit generates the first pulses, thereby connecting the first line and the row electrodes.
According to the second aspect of the invention, there is provided a driving apparatus of a plasma display panel, comprising: column electrode driving means for supplying pixel data pulses corresponding to pixel data to a plurality of column electrodes arranged in the vertical direction of the plasma display panel; and row electrode driving means for supplying first pulses of a predetermined polarity and second pulses of a polarity different from the predetermined polarity to a plurality of row electrodes arranged in the horizontal direction which crosses the column electrodes, wherein the row electrode driving means has: a first pulse generating circuit for generating the first pulses and supplying them to a first line; a first switching element which is turned on at least for a period of time during which the first pulse generating circuit generates the first pulses, thereby connecting the first line and the row electrodes; a second pulse generating circuit for generating the second pulses and supplying them to a second line; and a second switching element which is turned on at least for a period of time during which the second pulse generating circuit generates the second pulses, thereby connecting the second line and the row electrodes.
REFERENCES:
patent: 5446344 (1995-08-01), Kanazawa
patent: 5654728 (1997-08-01), Kanazawa et al.
patent: 5828353 (1998-10-01), Kishi et al.
patent: 5943030 (1999-08-01), Minamibayshi
patent: 6034482 (2000-03-01), Kanazawa
Hosoi Kenichiro
Kitagawa Mitsushi
Lewis David L
Morgan & Lewis & Bockius, LLP
Pioneer Electronic Corporation
Shalwala Bipin
LandOfFree
Driving apparatus of plasma display panel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Driving apparatus of plasma display panel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driving apparatus of plasma display panel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2552233