Patent ID: 7937114
Filing Date: 2011-05-03
Classification: G09G

Abstract:
1. A mobile phone comprising: a control unit configured to store image data into one of a first buffer and a second buffer, and calculate an update range by comparing a current image data and a previous image data; a display control unit configured to output the image data from said one of the first buffer and the second buffer, and display the output image data on a display unit; a first switch unit configured to connect the control unit with one of the first buffer and the second buffer; a second switch unit configured to connect one of the first buffer and the second buffer with the display control unit; and a switch control unit configured to control the first switch unit and the second switch unit such that: (i) when the update range is at least equal to a predetermined value, the image data is alternatively stored into one of the first buffer and the second buffer and is output from the other one of the first buffer and the second buffer, which is then not connected to the control unit via the first switch unit, and (ii) when the update range is less than the predetermined value, the image data is stored into and output from a same one of the first buffer and the second buffer.