By using embedded system exploitation board based on Intel PXA255,this paper drives LCD through framebuffer method,and acquires a good experiment result.

When adopt the QT/Embedded as the basic graphic library in a DTV platform,a framebuffer device is necessary to process the interrelated command of bottom.

This paper described how to design and complete an Embedded Video Living Monitoring System, which depended on embedded software developing, Linux graph collection, MPEG-4 compression, RTP translation, Linux framebuffer and use embedded CPU and Linux as developing platform.

Facing with the problem of power consumption caused by large data stream and high frequency,an architecture-level low power technology based on dual-page frame buffer for LCD controller is presented in this paper.

If GUIs(graphic user interface) such as MiniGUI,MicroWindows of Qt-Embedded in the embedded Linux are used,LCD device drivers must be implemented as Linux frame buffer device drivers in addition to those low level operations which only deal with commands provided by LCD controllers.

In this paper,the high resolution output technique is discussed and a new effective output method is obtained to be a solution to defects of traditional methods which are limited by the size of frame buffer.