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Integrated Line Driver for Digital Pulse-Width Modulation Driven AMOLED Displays on Flex

2014; Institute of Electrical and Electronics Engineers; Volume: 50; Issue: 1 Linguagem: Inglês

10.1109/jssc.2014.2364268

ISSN

1558-173X

Autores

Jan Genoe, Koji Obata, Marc Ameys, Kris Myny, Tung Huei Ke, Manoj Nag, Soeren Steudel, Sarah Schols, Joris Maas, Ashutosh Tripathi, Jan‐Laurens P. J. van der Steen, Tim Ellis, Gerwin H. Gelinck, Paul Heremans,

Tópico(s)

Phase-change materials and chalcogenides

Resumo

An integrated scan-line driver, driving half a QQVGA flexible AMOLED display using amorphous-IGZO backplane technology on foil, has been designed and measured. A pulse-width modulation technique has been implemented, enabling to drive the OLEDs with a duty cycle up to almost 100%. The digital driving method also results in a 40% static power reduction of the display. Dynamic logic and bootstrapping techniques enabled the use of clock frequencies up to 300kHz in unipolar amorphous-IGZO technologies on foil.

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