Patent ID: 7167154
Filing Date: 2007-01-23
Classification: G09G,G11C

Abstract:
1. A display device comprising: a substrate; a plurality of gate lines formed on the substrate; a plurality of drain lines formed on the substrate and crossing the plurality of gate lines; a plurality of pixels comprising thin film transistors which are connected to the gate lines and the drain lines; a scan circuit formed on the substrate and to apply scan signals to the gate lines; and a control circuit to supply control signals to the scan circuit, wherein the scan circuit comprises a shift register which generates outputs corresponding to the plurality of gate lines and a plurality of drive circuits which output the scan signal to the corresponding gate line based on the outputs of the shift register, wherein a common scan signal, which comprises a voltage amplitude larger than a voltage amplitude of the outputs of the shift register, is inputted to at least two of said drive circuits in common from the control circuit, and wherein each drive circuit comprises a booster circuit to which the output of the shift register and the common scan signal are inputted, and the booster circuit selects the common scan signal which is inputted during a period in which the output of the shift register is inputted, and outputs the scan signal comprising the voltage amplitude larger than the voltage amplitude of the output of the shift register to the corresponding gate line.