Method and device for driving liquid crystal display

Abstract

A method and device for overdriving a liquid crystal display is provided, which overcomes the limitations and disadvantages of prior arts. The invention can reduce the optical response time of liquid crystal to the driving voltage so that dynamic images can be displayed with superior quality. To achieve the objective of accelerating liquid crystal optical response, the basic pixel structure of the overdrive device provided by the invention contains a first gate line, a second gate line, a first data line, a second data line, a first capacitor, a second capacitor, an output line, a first transistor, and a second transistor. The first transistor has its gate connected to the first gate line, its source connected to the first data line, and its drain connected to the output line, the first capacitor, and the second transistor's drain. The second transistor has its gate connected to the second gate line, its source connected to the second data line, and its drain connected to the output line, the second capacitor, and the first transistor's drain. The first and second capacitors are also connected to the ground. The output line delivers the driving voltage to the corresponding pixel of the LCD display. The first and second gate lines are connected to a gate driver. The first and second data lines are connected to a data driver. The invention also provides a method for overdriving a liquid crystal display.