The principles and developments of display driver chips in recent years are summarized, and their development trend in near future is prospected. Firstly, we present several common display screens first, introduce the principle of display driver according to the type and characteristic of different display screens, and list the current development status of display driver chips. Then we sort out the development highlights of recent years and development trend. And lastly, we forecast the future development of the display driver chips. By comparing the display driver chips of various popular companies in recent years, we found that the innovation speed of display driver chips has increased significantly and the functions have increased extensively. As the fast changing of display technology, display driver chips will also develop more rapidly and change dramatically in future years.