Scan drive circuit for plasma display panel, driving circuit for plasma display panel and plasma display apparatus using same
AssigneeLG Electronics Inc.
InventorTae Kim
Life of this patent
Estimating the term…
Abstract
A scan drive circuit is provided for a plasma display panel (PDP). The scan drive circuit may reduce a number of switching elements by having one scan electrode correspond to a single switching element, thereby reducing the manufacturing cost of the plasma display panel driving circuit and the plasma display apparatus.
Claims27
A plasma display panel driving circuit, comprising:
- a scan-up unit for providing a reference voltage of a scan pulse to a particular node;
- a scan-down unit for providing a scan voltage of the scan pulse to the node;
- and
- a scan driver for supplying the scan pulse, which is formed with the reference voltage and the scan voltage applied to the node, to a plurality of Y electrodes of a plasma display panel, the scan driver including a plurality of switching elements for providing the scan voltage to the Y electrodes in accordance with a control signal, and a diode for supplying the reference voltage to the Y electrodes.
A plasma display panel driving circuit comprising:
- a scan-up unit for providing a reference voltage, the reference voltage corresponding to one voltage level of a scan pulse that is supplied to a plurality of Y electrodes of a plasma display panel;
- a scan-down unit for providing a scan voltage, the scan voltage corresponding to one voltage level of the scan pulse in a period corresponding to the lower voltage level;
- and
- a plurality of switching elements for selectively outputting scan pulses based on the reference voltage and scan voltage, the scan pulses being applied to the plurality of Y electrodes in response to a control signal.
A scan drive circuit connected to at least one Y electrode of a plasma display panel for supplying a set-up voltage, a sustain pulse and a scan pulse to the at least one Y electrode, the scan drive circuit comprising:
- at least one diode for forming a path for the set-up voltage, the sustain pulse, and a reference voltage of the scan pulse;
- and
- at least one switching element, connected in parallel to the at least one diode, for forming the scan pulse in a scan period by switching to a scan voltage of the scan pulse in accordance with a control signal.
A plasma display driving method comprising:
- providing a reference voltage to a node;
- providing a scan voltage to the node;
- forming a scan pulse based on the reference voltage and the scan voltage;
- and
- applying the formed scan pulse to at least one electrode of a plasma display panel during a scan period.
Dependencies are inferred from the claim text.