Display control device having a frame buffer for temporarily storing image data to be displayed on either one of a first display device or a second display device

Abstract

A display control device () comprises: a plurality of display devices () and (); a display output section () which supplies image data to the display devices () and (); a frame buffer () which temporarily stores the image data; and a buffer control section () which controls the frame buffer (). The display output section () transmits the image data stored in the frame buffer () to the plurality of display devices () and (), and reads, from an image data storage section (), image data not stored in the frame buffer (), so as to transmit the read image data to the display devices () and (), and to write the read image data in the frame buffer (). The buffer control section () is configured to prevent that image data, which are stored in the frame buffer () and which are not yet read, are overwritten by the image data read from the image data storage section (). Thereby, it is possible to reduce the amount of memory access at low cost.