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US 2004/0164940 A1Published application
LCD driver
OwnerPeter H. Xiao, Jemm Y. Lianginventors
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Abstract
A capacitor divider comprising a plurality of capacitors is used for driving liquid crystal displays. The use of capacitor dividers reduces power consumption, which would be desirable for portable devices. Power consumption is reduced in some embodiments where no static current would flow in the divider.
Claims44
A LCD driver comprising a capacitor divider connected to row and/or column electrodes of a LCD, said divider comprising a plurality of capacitors that are electrically connected to provide voltage level(s) and power for driving the LCD.
A LCD driver comprising:
- a capacitor divider which comprises a plurality of capacitors;
- and
- a switching device connecting the divider to row and column electrodes of a LCD, to provide suitable IAPT voltage level(s) for driving the electrodes.
A method for driving a LCD comprising:
- providing a capacitor divider which comprises a plurality of capacitors;
- and
- connecting the divider to row and column electrodes of a LCD, to provide suitable voltage level(s) for driving the electrodes.
Dependencies are inferred from the claim text.