Display device driver, display device and driving method thereof
AssigneeSharp Kabushiki Kaisha
InventorMasahiko Monomohshi
Life of this patent
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Abstract
A display device driver of the present invention includes: an operational amplifier for generating a plurality of gray level display voltages; a switch for selecting and outputting one of the plurality of gray level display voltages according to display data; and a control circuit for detecting the gray level display voltage that was selected and outputted by the switch from the plurality of gray level display voltages, so as to control the operational amplifier. With this configuration, the display device driver reduces power consumption of the display device.
Claims12
A display device driver, comprising:
- generating means for generating a plurality of gray level display voltages;
- selecting means for selecting and outputting one of the plurality of gray level display voltages according to display data;
- and
- detecting means for detecting the gray level display voltage that was selected and outputted by the selecting means from the plurality of gray level display voltages, so as to control the generating means.
A driving method of a display device, comprising the steps of:
- selecting and outputting one of gray level display voltages according to display data;
- detecting the gray level display voltage that was selected and outputted from the gray level display voltages;
- and
- suspending generation of a non-selected one of the gray level display voltages.
A display device driver, comprising:
- a generator for generating a plurality of gray level display voltages;
- a selector for selecting and outputting one of the plurality of gray level display voltages according to display data;
- and
- a detector for detecting the gray level display voltage that was selected and outputted by the selector from the plurality of gray level display voltages, so as to control the generator.
A display device, comprising:
- a display device driver;
- and
- a display panel, which is driven by the display device driver to display gray levels,
- said display device driver including:
- generating means for generating a plurality of gray level display voltages;
- selecting means for selecting and outputting one of the plurality of gray level display voltages according to display data;
- and
- detecting means for detecting the gray level display voltage that was selected and outputted by the selecting means from the plurality of gray level display voltages, so as to control the generating means.
Dependencies are inferred from the claim text.