摘要:
A plasma display device and a power supply thereof having a fewer number of power sources in the plasma display device is disclosed. The power supply generates a voltage corresponding to a Ve power source by using a variable resistance through a voltage distribution principle without including a Ve power source. In addition, since a power supply circuit including a thermistor is used in order to correspond to a discharge firing voltage which is changed by a temperature, a sustain discharge is stably generated by adjusting a Ve voltage without including a Ve power source.
摘要:
In a sustain period, a positive voltage is applied to an address electrode during at least one part of a period for applying a last sustain discharge pulse that is gradually increased and applied to a scan electrode. In this manner, an occurrence of misfiring between the address electrode and the sustain electrode of a discharge cell that is sustain-discharged without having been addressed in the next consecutive subfield is reduced or prevented.
摘要:
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.
摘要:
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.
摘要:
A power supply that is employable by a plasma display device for generating and supplying a plurality of voltages, the power supply including a first power source generating and supplying a first voltage, a transistor having a drain electrically coupled to the first power source, a first resistor having a first end coupled to the first power source and a second end electrically coupled to a gate of the transistor, a second resistor having a first end coupled to the second end of the first resistor and a second end electrically coupled to a second power source supplying a second voltage that is lower than the first voltage, and a capacitor having a first end coupled to a source of the transistor and a second end electrically coupled to the second power source. The coupling of the first end of the capacitor to the source of the transistor may form a third voltage supply node having the third voltage when the capacitor is charged.
摘要:
A plasma display device and a driving method thereof. A sustain discharge before a reset period for initializing a cell which is sustain discharged in a previous subfield is generated as a weak discharge rather than a strong discharge. By generating a weak sustain discharge, the amount of wall charge formed in the exterior area of electrodes may be reduced. As a result, in the subsequent reset period, the wall charge can be controlled to be appropriate for addressing while preventing misfiring and low discharge.
摘要:
A power supply that is employable by a plasma display device for generating and supplying a plurality of voltages, the power supply including a first power source generating and supplying a first voltage, a transistor having a drain electrically coupled to the first power source, a first resistor having a first end coupled to the first power source and a second end electrically coupled to a gate of the transistor, a second resistor having a first end coupled to the second end of the first resistor and a second end electrically coupled to a second power source supplying a second voltage that is lower than the first voltage, and a capacitor having a first end coupled to a source of the transistor and a second end electrically coupled to the second power source. The coupling of the first end of the capacitor to the source of the transistor may form a third voltage supply node having the third voltage when the capacitor is charged.
摘要:
A plasma display device includes a plurality of first electrodes and a plurality of second electrodes, the plurality of first and second electrodes adapted to generate a sustain discharge so as to display an image on a screen, a first inductor including a first end coupled to the plurality of first electrodes, a second inductor including a first end coupled to the plurality of first electrodes, the second inductor having an inductance that is less than an inductance of the first inductor, a first driving block adapted to control a voltage of the plurality of first electrodes through the first inductor, and a second driving block adapted to control the voltage of the plurality of first electrodes through the second inductor, the second driving block is located closer to a lower portion of a screen than the first driving block.
摘要:
A method and apparatus to drive a Plasma Display Panel (PDP) having X electrodes, Y electrodes, and address electrodes includes: dividing a unit frame, which is a display cycle, into a plurality of sub-fields for displaying time ratio gray-scale, each sub-field including a reset period, an address period, and a sustain period; alternately supplying a sustain pulse to the X electrode and the Y electrode based on a reference voltage in the sustain period; and reducing the width of the last sustain pulse of the sustain period in the minimum weighted sub-field, if a load factor of the minimum weighted sub-field to which the lowest gray-scale is allocated among the plurality of sub-fields is lower than the reference load factor.
摘要:
A sustain or scan electrode driver for a plasma display device including a power recovery circuit, a voltage storage circuit, and a switching circuit. Power recovery is achieved by a coupling a power source at a minus sustain voltage to the sustain or scan electrode driver circuit that includes a capacitor and an inductor for creating resonance with the panel capacitor and recovering the power used in sustain discharge. Power loss of switches used in the driver circuit may be reduced and power recovery efficiency may be increased by using an additional capacitor in the driver circuit that maintains terminals of the switch at a predetermined level.