| 摘要 |
A gamma voltage generation unit is discussed which includes: A maximum reference voltage establisher (210), a minimum reference voltage establisher (310), minimum and maximum reference voltage selectors (318-324), a voltage booster (220) to boost a first maximum reference voltage into at least one second maximum reference voltage, a mode selector (230) configured to select one of the maximum reference voltage and the at least one second maximum reference voltage as a selected maximum reference voltage, and a plurality of gamma voltage adjusters (240, 250, 260, 270, 280, 290). The selected maximum reference voltage selected by the mode selector is provided as a 255th gray-scale gamma voltage (V255). A first gamma voltage adjuster (240) among the gamma voltage adjusters can generate a gray-scale gamma voltage (V191) based on the selected maximum reference voltage. The remaining gamma voltage adjusters (250, 260, 270, 280, 290) are connected to one another in a cascade. |
