Display controller for permanent display panel

The invention relates to a display device. The display device is provided with a display controller and a permanent display panel used for displaying static images. The display controller is provided with a pre-processor; the pre-processor extracts data used for updating the frames of a display from a memory module for storing display data and compressing the data; a frame buffer stores compressed data; and a display driver receives and decompresses the compressed data from the frame buffer and repeatedly refreshes the display panel when displayed frames are updated. 种显示装置，其具有显示器控制器和用于显示静态图像的永久性显示面板。所述显示器控制器具有预处理器，所述预处理器从存储显示数据的存储器模块提取用于更新显示器的帧的数据并压缩所述数据。帧缓冲器存储所压缩的数据。显示器驱动器接收和解压缩来自帧缓冲器的压缩的数据，并且在更新显示的帧的同时重复地刷新显示面板。