Display panel driving apparatus
AssigneePioneer Corporation
InventorShigeo Ide
Life of this patent
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Abstract
A driving apparatus for a display panel having a plurality of row electrodes and a plurality of column electrodes intersecting the row electrodes, for generating a drive pulse to be applied to each of the electrodes. The driving apparatus includes a DC power supply for generating a DC voltage and having a positive terminal and a negative terminal one of which is applied with a reference potential, a coil having one end connected to the other terminal of the DC power supply, and a switching arrangement for alternately making a connection and disconnection between the one end of the coil and the other terminal of the DC power supply. At the time the alternate switching is performed, a potential change appearing on the other end of the coil is used as the drive pulse.
Claims4
A driving apparatus for a display panel having a plurality of row electrodes and a plurality of column electrodes intersecting said row electrodes, for generating a drive pulse to be applied to each of said electrodes, comprising:
- a DC power supply for generating a DC voltage and having a positive terminal and a negative terminal, one of said positive terminal and negative terminal applied with a reference potential;
- a coil having a first end connected to the other terminal of said DC power supply and switching means for alternately making a connection and disconnection between said first end of said coil and said other terminal of said DC power supply,
- wherein said drive pulse is generated on a second end of said coil by connecting said one terminal of said DC power supply to said first end of said coil by said switching means during a period equivalent to one resonance period determined by capacitive elements of said coil and said display panel.
Dependencies are inferred from the claim text.