Patent ID: 7250957

Claim:
A liquid crystal display device, comprising: a timing control unit arranged to receive image data and a control signal from a graphic processing unit through an interface unit; a gate driver integrated circuit for receiving a control signal from the timing control unit and a gate on/off power signal from a DC/DC converter, wherein the gate driver integrated circuit supplies a gate pad unit of a liquid crystal display panel with a scan signal; a halftone gray driving mode converting unit for implementing halftone gray by receiving the image data and the control signal from the timing control unit; a data driver integrated circuit for receiving new image data from the halftone gray driving mode converting unit and supplying a data pad unit of the liquid crystal display panel with the new image data; a switching unit between the halftone gray driving mode converting unit and the data driver integrated circuit to switch between a halftone gray driving mode and a normal driving mode based upon a control signal from the timing control unit; wherein the halftone gray driving mode converting unit includes a data converting unit for converting gray levels of image data to a white level, a black level, and another gray level.