MaxLife™ is a breakthrough backplane solution for AMOLED television. We demonstrate a compensating technology with a prototype that monitors and corrects for the OLED and TFT aging at each pixel for expected lifetimes of 50,000h+. This provides a tremendous boost in realizing low‐cost AMOLED TVs using amorphous or poly‐Silicon backplanes.
AMOLED displays above 20" pose unique challenges for a-Si. The displays must have high brightness, very long lifetimes, and low pixel programming times. High-efficiency OLEDs, Ignis's self-compensating pixel and a proposed hybrid drive scheme demonstrate that large AMOLED displays for HDTV are possible using well-established a-Si technology.
Instability has long been a barrier to the use of a‐Si AMOLED backplanes. We present here the first demonstration of proven stability of a‐Si AMOLED pixels. Over 7000h of stability data is shown for pixel circuits that compensate for threshold‐voltage shift, temperature, and OLED degradation (extreme compensation). This demonstrates that stable AMOLED backplanes are achievable using well‐established and proven a‐Si TFT technology in mainstream use by the flat panel display industry.
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