| 摘要 |
A driving circuit for a display device, an LCD device having the driving circuit, and a driving method thereof are provided to enable a user to actively adjust a gamma value and a viewing angle of the LCD device by changing a gamma reference voltage. A driving circuit for a display device includes a driving voltage generator and a grayness voltage generator. The driving voltage generator outputs plural gamma reference voltages. The grayness voltage generator selects one of the gamma reference voltages to generate the grayness voltage. The grayness voltage generator includes a voltage selector(710), a voltage divider(720), a multiplexer(730), and a grayness voltage output unit(740). The voltage selector selects one of the gamma reference voltages. The voltage divider generates plural divided voltages by using the selected gamma reference voltage. The multiplexer selects some of the divided voltages and outputs the selected result as a grayness select voltage. The grayness voltage output unit generates plural grayness voltages by using the grayness select voltage and outputs the grayness voltages. |
