Threshold and grayscale stability of Microcup electronic paper

HongMei Zang; Jiunn-Jye Hwang; Haiyan Gu; Jack Hou; Xin Weng; Yajuan Chen; Rong Chang Liang

doi:10.1117/12.524529

28 May 2004 Threshold and grayscale stability of Microcup electronic paper

HongMei Zang, Jiunn-Jye Hwang, Haiyan Gu, Jack Hou, Xin Weng, Yajuan Chen, Rong Chang Liang

Proceedings Volume 5289, Liquid Crystal Materials, Devices, and Applications X and Projection Displays X; (2004) https://doi.org/10.1117/12.524529
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

Plastic passive matrix (PM) and active matrix (AM) electronic paper displays (EPDs) have been prepared by SiPix’s Microcup roll-to-roll manufacturing processes using ITO/PET films. The Microcup displays have shown outstanding environmental stability and excellent physico-mechanical properties such as scratch, impact and flexure resistances even in high temperature and humidity conditions. A PMEPD recently prepared on inexpensive row-and-column patterned ITO/PET films has shown a contrast ratio of ≥10, t_on ≤30 msec at ≤40 V, and a threshold voltage of ≥15 V. More than 8 levels of grayscale with outstanding bistability have been demonstrated by either pulse width or pulse count modulation. No noticeable degradation of the mid-tone images has been observed even after the power was turned off for more than 5 days. Moreover, the electro-optical responses, particularly the threshold voltage and gamma of the PMEPDs remain essentially the same within a wide range (20-60°C) of operation temperature.

Citation Download Citation

HongMei Zang, Jiunn-Jye Hwang, Haiyan Gu, Jack Hou, Xin Weng, Yajuan Chen, and Rong Chang Liang "Threshold and grayscale stability of Microcup electronic paper", Proc. SPIE 5289, Liquid Crystal Materials, Devices, and Applications X and Projection Displays X, (28 May 2004); https://doi.org/10.1117/12.524529

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