Patent ID: 8692750

Claim:
A liquid crystal display device, comprising: an image display unit having unit pixels arranged thereon in a matrix; a driving circuit unit applying a driving signal to the image display unit, wherein the driving circuit unit includes, a gate driver for supplying gate signals to gate lines of the display unit; a data driver for applying data signals to data lines; an output buffer block within the gate driver; a level shifter in the driving circuit unit; a timing controller for generating control signals to be supplied to the gate driver and the data driver by receiving signals inputted from an exterior; a DC-DC (Direct Current-Direct Current) converter for converting a DC voltage input from the exterior into a DC voltage required for driving a liquid crystal display panel; a DA (Digital-to-Analog) converter for converting a digital signal inputted from the exterior into an analog signal; a gamma voltage generator; a shift resister for storing the control signals inputted from the timing controller; and a common voltage driver for adjusting a common voltage; a first CMOS by paring a LDD TFT with a PMOS; and a second CMOS by pairing a GOLDD TFT with the PMOS, wherein the output buffer block within the gate driver, the level shifter in the driving circuit unit, a pixel switching TFT in the display unit, and all other devices driven by high voltage more than 10V are formed by the second CMOS adopting the GOLDD TFT, and wherein the timing controller, the shift resistor within the data driver, the DC-DC converter, the common voltage driver, and all other devices driven by a low voltage less than 10V are formed by the first CMOS adopting the LDD TFT.