4.2: Design of an Improved Pixel for a Polysilicon Active Matrix Organic Light Emitting Diode Display

New Active Pixel Design Using μc-Si TFT Technology for AM-OLED Backplane

In this paper, we propose and fabricate a new active pixel circuit design integrated on active-matrix organic light-emitting diode (AMOLED) display. Moreover, we have developed a thin film transistor (TFT) based on microcrystalline silicon (μc-Si) active layer for a more efficient process and a better uniformity of driving transistor characteristics. The experimental results show that the emiss...

Overview of All Pixel Circuits for Active Matrix Organic Light Emitting Diode (AMOLED)

Design of Current Programmed Amorphous Silicon AMOLED Pixel C

The present work describes in detail the design of currentprogrammed amorphous Silicon (a-Si:H) Active matrix organic light emitting diode (AMOLED) pixel circuits. The central design principle in these circuits is described and tradeoffs between TFT sizes and supply voltage elaborated. It is shown that drive currents as high as 20μA can be achieved with very good linearity.

Integration of organic light-emitting diode and organic transistor via a tandem structure

A high-performance organic active matrix pixel was fabricated by using a metal oxide sV2O5d coupling layer that effectively integrates an organic light-emitting diode sOLEDd on top of an organic field-effect transistor sOFETd. The field-effect mobility of the OFET approached 0.5 cm2 V−1 s−1 and the ON/OFF current ratio was .103. The brightness of the OLED was on the order of 2000 cd/m2, with an...

New pixel circuits for driving active matrix organic light emitting diodes

New pixel circuit designs for active matrix organic light emitting diodes (AMOLEDs), based on the low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs) were proposed and verified by SPICE simulation and fabrication results. Threshold voltage compensation pixel circuits consisting of five TFTs, one additional control signal, and one storage capacitor were used to enhance disp...