Advanced LTPS Technologies for AM-OLED Display

Abstract

Significant progresses on low-temperature polycrystalline silicon (LTPS) backplane technologies for active-matrix organic light emitting diode (AM-OLED) architectures were demonstrated and reported. An improved voltage-driven pixel compensation circuit was proposed to overcome the non-uniformity issue and moreover, for mobile applications, the RGBW pixel arrangement as well as the LTPS fully integrated luminance self-controlling system was also proposed to reduce the power consumption. Finally a 7-inch AM-OLED with white OLED (WOLED) together with color filter on array (COA) technologies were demonstrated. The technology is suitable for large and high-resolution AM-OLED applications.