Patent ID: 8624939

Claim:
A liquid crystal display (LCD) device, comprising: a display control circuit to receive data of each frame of an external image signal; and a liquid crystal panel; wherein when the data of an n+1 frame currently received by the display control circuit is the same as that of an n frame previously received by the display control circuit, where n is a natural number, the display control circuit outputs a plurality of first gray scale voltages corresponding to the data of the n+1 frame to drive the liquid crystal panel, and when the data of the n+1 frame is different from that of the n frame, the display control circuit generates data of at least one inserted frame of an image signal between the data of the n frame and the n+1 frame, and outputs a plurality of second gray scale voltages respectively corresponding to the data of the at least one inserted frame and the n+1 frame to drive the liquid crystal panel to display first an image of the least one inserted frame and then an image of the n+1 frame, wherein an absolute value of a second gray scale voltage exceeds that of a first gray scale voltage for a same gray scale, and wherein when the data of the n+1 frame is the same as that of the n frame, a frame frequency of the n+1 frame equals that of the external image signal, when the data of the n+1 frame is different from that of the n frame, a frame frequency of the at least one inserted frame equals that of the successive n+1 frame, and exceeds that of the external image signal.