| 摘要 |
PROBLEM TO BE SOLVED: To provide a common voltage generator, a display device including the same, and a common voltage generation method. SOLUTION: The common voltage generator includes: an operational amplifier which amplifies difference between a first input voltage and a second input voltage to output the amplified voltage as a common voltage; and a switch which transmits a first voltage and a second voltage from a first common voltage output mode of the operational amplifier to a power supply of the operational amplifier, and transmits a third voltage and a fourth voltage from a second common voltage output mode to a power supply of the operational amplifier. The common voltage generator is operated with a small area and high efficiency, and thereby, power consumption, a chip size and cost increase of a whole module, can be reduced. COPYRIGHT: (C)2010,JPO&INPIT |
