Patent ID: 8289260
Filing Date: 2012-10-16
Classification: G09G

Abstract:
1. A driving device for a display device, the display device including a plurality of pixels connected to data lines, the driving device comprising: a gray voltage generator which generates a plurality of gray voltages; a voltage selector which selects an output voltage from the plurality of gray voltages; a voltage level converter which converts a level of the output voltage selected by the voltage selector and applies the output voltage with a converted level to the data lines; a first switching unit connecting the voltage level converter to the voltage selector and the data lines; and a second switching unit directly connecting the voltage selector and the data lines, wherein operating times of the first switching unit and the second switching unit are different from each other, wherein the first switching unit comprises a first switching transistor connecting the voltage level converter to the voltage selector, a second switching transistor connecting the voltage level converter to the data lines, and a third switching transistor connecting the voltage level converter to a first voltage terminal having a first voltage and wherein a control terminal of the first switching transistor, a control terminal of the second switching transistor, and a control terminal of the third switching transistor are electrically connected to each other by a direct connection; and the connection of the control terminal of the first switching transistor, the control terminal of the second switching transistor, and the control terminal of the third switching transistor is not connected to a capacitor.