Flat display panel having internal power supply circuit for reducing power consumption
First Claim
1. A flat display device having a display panel in which a plurality of X electrodes and plurality of Y electrodes are provided, adjacent to each other, and a plurality of address electrodes intersecting with the X and the Y electrodes, comprising:
- a first detection unit which detects a voltage value of a display high voltage that is applied to the X and the Y electrodes to generate a sustain discharge; and
a second detection unit which detects an externally input signal or an existence of input display data; and
a drive controller which controls an application of a drive signal to the X electrodes, the Y electrodes and the address electrodes according to the detection results of the first and second detection units.
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Accused Products
Abstract
A flat display employs at least one high voltage different from logic voltages. The display has a voltage detection unit and a drive control signal control unit. The voltage detection unit is used to detect the high voltage. The drive control signal control unit is used to control drive control signals of the flat display in accordance with the detected high voltage. This arrangement eliminates charging currents that are applied to a display panel but have nothing to do on the actual displaying of data, or reactive currents due to unnecessary switching operations, thereby reducing power consumption.
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Citations
7 Claims
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1. A flat display device having a display panel in which a plurality of X electrodes and plurality of Y electrodes are provided, adjacent to each other, and a plurality of address electrodes intersecting with the X and the Y electrodes, comprising:
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a first detection unit which detects a voltage value of a display high voltage that is applied to the X and the Y electrodes to generate a sustain discharge; and a second detection unit which detects an externally input signal or an existence of input display data; and a drive controller which controls an application of a drive signal to the X electrodes, the Y electrodes and the address electrodes according to the detection results of the first and second detection units. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification