AC plasma display unit and its device circuit

Details AC plasma display unit and its device circuit AC plasma display unit and its device circuit

1996-06-10

1997-08-05

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345204, 326119, 326133, 3151694, G09G 328

Patent

active

056547285

ABSTRACT:
A separating circuit 244 is connected between a scanning voltage circuit 241, which supplies a selected voltage V1 to a line SU and an unselected voltage V2 to a line SD, and a sustaining voltage circuit 242, which selectively supplies a sustaining voltage Vs and 0 V to a line SC. A power recovery circuit 243 is connected to the line SC. In the separating circuit 244, a switch SW16 is connected between the line SD and the line SC and line SC, and a switch SW17 is connected between the line SU and the line SC. During an address period, the switches SW16 and SW17 are turned off and during a sustain period the switch SW16 is turned on/off and SW17 is turned on. The switch SW16 is constituted with a diode whereas the switch SW17 is constituted with a MOS transistor. When the unselected voltage V2 is negative, either the switch SW16 or SW17 may be omitted.

REFERENCES:
patent: 4900987 (1990-02-01), Otsuka et al.
patent: 5003228 (1991-03-01), Hada et al.
patent: 5420602 (1995-05-01), Kanazawa
patent: 5424612 (1995-06-01), Kim

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