| 摘要 |
The present invention relates to a decoding and scan driver, which comprises a level-shift circuit, a decoding circuit, an output driving circuit, and a control circuit. The level-shift circuit receives a plurality of input signals and shifts the voltage levels of the plurality of input signals for producing a plurality of decoding control signals. The decoding circuit is coupled to the level-shift circuit and produces a plurality of decoding signals according to the plurality of decoding control signals. The output driving circuit is coupled to the decoding circuit, produces a driving signal sequentially according to the plurality of decoding signals, and outputs the driving signal for driving a display panel. The control circuit is coupled to the output driving circuit, produces a control signal according to one of the plurality of input signals, and transmits the control signal to the output driving circuit for controlling the output driving circuit to output the driving signal. Thereby, the circuit area of the decoding and scan driver is saved and the cost is thus reduced. |
| 主权项 |
1. A decoding and scan driver, comprising:
a level-shift circuit, receiving a plurality of input signals, shifting a plurality of voltage levels of said plurality of input signals, and producing a plurality of decoding control signals; a decoding circuit, coupled to said level-shift circuit, producing a plurality of decoding signals according to said plurality of decoding control signals; an output driving circuit, coupled to said decoding circuit, producing a driving signal sequentially according to said plurality of decoding signals, and outputting said driving signal for driving a display panel; a control circuit, coupled to said output driving circuit, producing a control signal according to one of said plurality of input signals, and transmitting said control signal to said output driving circuit for controlling said output driving circuit to output said driving signal; a first logic unit, having a first input, a second input, and an output, said first input of said first logic unit coupled to said level-shift circuit, said second input of said first logic unit receiving said control signal, and said output of said first logic unit coupled to said decoding circuit; and a second logic unit, having a first input, a second input, and an output, said first input of said second logic unit coupled to said level-shift circuit, said second input of said second logic unit receiving said control signal, and said output of said second logic unit coupled to said decoding circuit. |
