Plasma display and plasma display driver and method of driving plasma display
AssigneeSamsung SDI Co., Ltd.
InventorsSeong-Joon Jeong, Jin-Ho Yang, Woo-Joon Chung, Tae-Seong Kim, Suk-Jae Park, Seung-Min Kim
Life of this patent
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Abstract
A plasma display includes a plurality of scan electrodes. A scan voltage is sequentially supplied to the plurality of scan electrodes, and a non-scan voltage that is higher than the scan voltage is supplied to scan electrodes to which the scan voltage is supplied. The non-scan voltage is generated by dividing a voltage that is higher than the non-scan voltage and the scan voltage. Thus, a voltage source for supplying the non-scan voltage can be eliminated.
Claims25
A plasma display, comprising:
- a plurality of scan electrodes;
- a plurality of scan circuits respectively coupled to the plurality of scan electrodes, each scan circuit adapted to selectively supply a voltage of a first node and a voltage of a second node to a corresponding scan electrode of the plurality of scan electrodes;
- a capacitor coupled between the first node and the second node;
- a first transistor coupled between the second node and a first voltage source adapted to supply a first voltage;
- a second transistor coupled between a second voltage source adapted to supply a second voltage and the first node, and having a source whose voltage is determined by the first node;
- a first resistor coupled between the second voltage source and a gate of the second transistor;
- and
- a second resistor coupled to the gate of the second transistor, and adapted to divide the second voltage together with the first resistor.
A method of driving a plasma display including a plurality of scan electrodes, a plurality of scan circuits respectively coupled to the plurality of scan electrodes, and a capacitor coupled between a first terminal and a second terminal, each scan circuit selectively supplying a voltage of the first terminal and a voltage of the second terminal to a corresponding scan electrode of the plurality of scan electrodes, the driving method comprising:
- supplying a first voltage to the second terminal;
- supplying a second voltage that is higher than the first voltage to the first terminal to charge the capacitor;
- electrically isolating the second voltage from the capacitor upon the capacitor being charged such that a voltage of the first terminal is a third voltage that is different from the second voltage;
- and
- selectively supplying the third voltage and the first voltage to the plurality of scan electrodes through the first terminals and the second terminals of the plurality of scan circuits.
A plasma display driver for a plasma display including a plurality of scan electrodes and a plurality of scan circuits respectively coupled to the plurality of scan electrodes, each scan circuit selectively supplying a voltage of a first terminal and a voltage of a second terminal to a corresponding scan electrode of the plurality of scan electrodes, the plasma display driver comprising:
- a capacitor coupled between the first terminal and the second terminal;
- a first transistor coupled between the second terminal and a first voltage source adapted to supply a first voltage;
- and
- a voltage divider coupled between the first voltage source and a second voltage source adapted to supply a second voltage, and to output a third voltage that is lower than the second voltage to the first terminal.
A plasma display driver for a plasma display including a plurality of scan electrodes and a plurality of scan circuits respectively coupled to the plurality of scan electrodes, each scan circuit selectively supplying a voltage of a first terminal and a voltage of a second terminal to a corresponding scan electrode of the plurality of scan electrodes, the plasma display driver comprising:
- a capacitor coupled between the first terminal and the second terminal;
- a first transistor coupled between the second terminal and a first voltage source adapted to supply a first voltage;
- and
- a linear regulator coupled between the first terminal and a second voltage source adapted to supply a second voltage, and to output a third voltage that is lower than the second voltage to the first terminal.
Dependencies are inferred from the claim text.