Plasma display
AssigneeLG Electronics Inc.
InventorsJang Cho, Yun Jung, Ju Seo
Life of this patent
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Abstract
A plasma display panel employs a voltage circuit having an input and an output, the voltage circuit configured for supplying a negative voltage for an electrode. The plasma display panel also employs a power supply that has a positive terminal and a negative terminal, where the negative terminal is connected to the input of the voltage circuit. The power supply is otherwise configured relative to the voltage circuit such that the voltage difference between the output and the input of the voltage circuit is fixed as a function of the power supply. By fixing this voltage difference, parasitic capacitance is minimized, power consumption and calorific value are reduced, and the plasma display panel operates in a more stable manner.
Claims20
A plasma display panel comprising:
- a first voltage supplier to supply a sustain voltage and a ground voltage to a scan electrode through a first node;
- a second voltage supplier to supply a setup voltage to the scan electrode through a second node which is separated from the first node;
- a third voltage supplier to supply a negative voltage to the scan electrode through a third node which is separated from the first and second nodes;
- a fourth voltage supplier to supply a scan bias voltage to the scan electrode through a fourth node which is separated from the first to third nodes;
- and
- a power supply connected between the second node and the third voltage supplier.
A plasma display panel comprising:
- a first voltage supplier to supply a sustain voltage and a ground voltage to a scan electrode through a first node;
- a second voltage supplier to supply a setup voltage to the scan electrode through a second node which is separated from the first node;
- a third voltage supplier to supply a negative voltage to the scan electrode through a third node which is separated from the first and second nodes;
- a fourth voltage supplier to supply a scan bias voltage to the scan electrode through a fourth node which is separated from the first to third nodes;
- and
- a power supply connected between the first node and the third voltage supplier.
A plasma display panel comprising:
- a first voltage supplier to supply a sustain voltage and a ground voltage to an electrode;
- a second voltage supplier to supply a setup voltage to the electrode;
- a third voltage supplier to supply a negative voltage to the electrode;
- a fourth voltage supplier to supply a scan bias voltage to the electrode;
- a switch drive circuit to supply a voltage from the first to fourth voltage suppliers to the electrode;
- and
- a power supply having a positive terminal and a negative terminal, wherein the positive terminal is connected to any one of an output node associated with the first voltage supplier and an output node associated with the second voltage supplier, and wherein the negative terminal is connected to a power input terminal associated with the third voltage supplier.
In a plasma display panel, a scan driver supplying voltage for a scan electrode in accordance with a driving waveform, said scan driver comprising:
- a first voltage circuit having an input and an output, the circuit configured for supplying a negative voltage for the scan electrode;
- and
- a power supply comprising a positive terminal and a negative terminal, wherein the negative terminal is connected to the input of the first voltage circuit, and wherein the power supply is otherwise configured relative to the first voltage circuit such that the voltage difference between the output and the input of the first voltage circuit is fixed as a function of the power supply.
Dependencies are inferred from the claim text.