Patent ID: 7369110

Claim:
A mobile display module comprising: a graphic memory for storing image data inputted thereto; a data latch unit for latching the image data outputted from the graphic memory; a driver for applying the image data outputted from the data latch unit to a liquid crystal panel upon receiving gamma voltage; a data discrimination unit for determining whether the image data inputted Into the graphic memory is still image data or moving picture data; and a gamma voltage generating unit receiving control signals in order to output first gamma voltage adaptable for the moving picture data to the driver if the image data are the moving picture data and in order to output second gamma voltage adaptable for the still image data to the driver if the image data are the still image data; wherein in the image data of the n th frame are identical to the image data of the (n+1) th frame, the data discrimination unit determines that the image data are the still image data, if the image data of the (n+1) th frame is identical to image data of an (n+2) th frame, the data discrimination unit determines that an application is changed so that the image data is determined as the still image data and if the image of the n th frame is not identical to the image data of an (n+1) th frame and the image data of the (n+1) th frame is not identical to the image data of the (n+2) th frame, the data discrimination unit determines that the image data are the moving picture data.