G - Physics – 09 – G
Patent
G - Physics
09
G
375/44
G09G 3/28 (2006.01)
Patent
CA 1297602
6446-439 ABSTRACT A plasma display apparatus comprises a first electrode group and a second electrode group disposed is an opposed relation to each other by the intermediary of a discharge gas to form cells therebetween. A first pulse train of first voltage is applied to the first electrode group for a first period in a time-division mode at a predetermined interval. A second pulse train of second voltage is applied to at least one selected electrode in the second electrode group for a second period shorter than the first period in synchronism with the first pulse train so as to produce a first pulsing potential difference between the electrodes associated with a selected cell in combination with the first pulse train. The first pulsing potential difference is larger than the firing voltage of the cell. A third pulse train of third voltage is applied to non-selected electrodes in the second elec- trode group for the second period in synchronism with the first pulse train so as to produce a second pulsing potential difference between the electrodes associated with non-selected cells in combination with the first pulse train. The second pulsing poten- tial difference is smaller than the firing voltage of said cell. A first direct-current voltage component is applied to the at least one selected electrode in the second electrode group for a third period shorter than the first period after application of the second voltage pulses so as to produce a third pulsing potential difference between the electrodes associated with said selected cell in combination with the first pulse train. The third pulsing 6446-439 potential difference is smaller than the firing voltage of the cell but large enough to continue the discharge of the selected cell due to the previous discharging state of the selected cell.
542719
Hada Hiroshi
Iwakawa Tsunekiyo
Nakamura Tadashi
Corporation Nec
Smart & Biggar
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