Display device

Details Display device Display device

2011-05-17

2011-05-17

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S092000, C345S099000, C345S212000

Reexamination Certificate

active

07944439

ABSTRACT:
A display device includes first and second voltage generation circuits each including a voltage circuit for outputting an internal voltage on the basis of a plurality of clocks, a sampling circuit for sampling an output signal from the voltage circuit, a monitoring circuit for comparing an output signal from the first sampling circuit with a predetermined voltage range and outputting a result, and a power supply generation circuit for generating a power supply voltage to be input to the voltage circuit on the basis of an output signal supplied from the monitoring circuit. The voltage circuit in the first voltage generation circuit is controlled on the basis of a level of the power supply voltage, and the voltage circuit in the second voltage generation circuit is controlled on the basis of periods of the clocks.

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patent: 2002-291231 (2002-10-01), None
patent: 2003-23770 (2003-01-01), None
patent: 2003023770 (2003-01-01), None

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