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该论文提出了一种数字PWM驱动的AMOLED显示技术,旨在降低柔性基板上的静态功耗。通过创新的驱动方案,解决了传统AMOLED显示器在柔性基底上功耗过高的问题。
Manoj Nag1, Soeren Steudel1, Sarah Schols1, Joris Maas4, Ashutosh Tripathi4, Jan-Laurens van der Steen4, Tim Ellis4, Gerwin H. Gelinck4, Paul Heremans1,2,4 imec, Leuven, Belgium, 2KU Leuven, Leuven, Belgium, Panasonic, Osaka, Japan, 4Holst Centre/TNO, Eindhoven, The Netherlands 1 3 The efficiency of small-molecule OLED devices increased substantially in recent years, creating opportunities for power-efficient displays, as only light is generated proportional to the subpixel intensity. However, current active matrix OLED (AMOLED) displays on foil do not validate this power-efficient advantage, as too much power is lost in the AM backplane. AMOLED displays use the analog voltage on the gate of a drive transistor (e.g. M1 in Fig. 30.2.1) to control the pixel current and hence the pixel brightness. Accurate and uniform pixel currents can only be obtained when transistor M1 is driven is saturation. In highresolution technologies on foil, transistor parameters W, L and the mobility μ are
Jan Genoe1,2, Koji Obata3, Marc Ameys1, Kris Myny1, Tung Huei Ke1,