| Twenty-first century is the age focusing on the development of information industry. Because 90 per cent of the information that the people get is visual, display technology will play a very important role in the information society. At the present time Liquid Crystal Display(LCD) predominates over the Flat Panel Display(FPD), but its some disadvantages such as slow response velocity, narrow visual angle limit its more development and application. Organic Light-emitting Device(OLED) is an important member of FPD. Due to its many merits of light weight, low cost, broad visual angle, high response speed, spontaneous light-emitting, high brightness and efficiency, etc., OLED attracts world wide attention in the fields of science and industry. It gradually becomes the international cutting-edge project and the focus of international competition which need the cooperation and research of many intercrossed branch of science, especially in recent over ten years after C.W.Tang reported the high brightness OLED at low operating voltage for the first time in 1987. By using novel materials, suitable structures and process technologies, and also by the efforts of world known companies, the performances of OLED are made significant improvement reaching to the level of commercialization. Although the development of OLED is relatively perfect, how to further improve the performances of the devices is also the research focus in the world. So further to understand the light emitting mechanisms of OLED and to design reasonable devices structures are our research pivots in order to increase the performance of devices. At the present time the progress in making long life and high stabilization has been made, but drive circuit for OLED is not very perfect, and chips for OLED are very expensive, and the functions of chips are very single. Meanwhile the functions of drive circuit chips for LCD are very perfect and the price is very cheap, so we determine to design a drive circuit for TFT-OLED with TFT-LCD drive chips. Firstly, the article compares the driving principle of TFT-LCD and the one of TFT-OLED,and finds that two driving principles are very resemble, so it is possible changing the drive chip of TFT-LCD and making it drive TFT-OLED. Then we choose two types of TFT-LCD chips from Samsung. One is the 120/128 channels TFT-LCD gate driver S6C0655, the other is the 6 bit 480 channels source driver S6C0671. After analyzing the chips, we find that the driving timing, display data, output driving voltage and currency of the chips meet the need of our color TFT-OLED. The voltage on liquid crystal pixel is alternating voltage, but the voltage on OLED pixel is direct voltage, so we adjust the input on POL pin, let it maintain low voltage always. We choose 80 channels of S6C0655 and 240 channels of S6C0671 because the standard of our color display is 64×3×80. At last, we design a circuit with a piece of MCU, a piece of S6C0655, a piece of S6C0671, a piece of ROM and some periphery circuits. ROM, S6C0655 and S6C0671 are controlled by MCU. Display data are stored in ROM. When the circuit is working, MCU gets the data from ROM and transfers them to S6C0671 and transfers shift pulse to S6C0655 synchronously. Presently the manufacture technics of the PM-OLED is simpler and the cost is lower than the AM-OLED, so the PM-OLED of low information capacity has been applied. The main work of the third chapter is designing a driving circuit that can drive PM-OLED. The display is 32×16 matrix. If the program is altered, the circuit can achieve the different function. It can display two Chinese characters of 16×16 matrix or display dynamic pictures.
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