Am - Oled Driver And Test Method Research

Organic Light Emitting (OLED) display technology has become a new star of a flat-panel display technology, which not only have the advantage of simple structure, ultra-thin, self-shining, high brightness, fast response, wide visual angle, high efficiency, low-voltage, low cost and so on. As a new generation of display devices, OLED will be widely applied in the field of the cell phone, PDA, digital cameras, car show, notebook computers, wall-hanging television, as well as military. At present, large-size, high-definition and high-resolution display has become a trend, and OLED has been a major hot spot both at home and abroad.This paper describes the structure and light-emitting principle of OLED, introduced the OLED driving and grayscale modulation principle, focusing on the GOA driving circuit and a test method to do the research.Currently, TFT-LCD display device line scan are mostly outside the gate IC drivers needed, and AM-OLED backplane commonly used in LTPS TFT. LTPS TFT characteristics as well as reduce the cost advantage, AM-OLED multi-use GOA (gate on glass) direct-drive circuit. The GOA drive circuit reliability, availability has become an important research topic.China has not yet achieved the current AM-OLED mass production of the major companies in the research and sample testing phase, then the backplane and OLED characteristics in the study and test samples, the need for the entire module on the electric drive, but currently the kinds of AM -OLED driver IC is very small, the use of foreign production by kids customized driver IC.In this paper, a new GOA drive circuit specifically addressed the driving principle and simulation verification, while also studied using a TFT-LCD driver IC to drive the AM-OLED module testing application methods.