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Taipei, Taiwan

Huang Y.-P.,National Chiao Tung University | Lin F.-C.,National Chiao Tung University | Wu S.-I.,National Chiao Tung University | Yang P.-R.,SiPix Technology Inc.
IEEE/OSA Journal of Display Technology | Year: 2013

Electrophoretic display (EPD) is one of the most prominent technologies used in electronic paper. EPDs have good paper-like readability in ambient sunlight, and their bistability characteristics allow them to use very little power. To understand the physical mechanism at work in EPDs in terms of optical phenomena and current responses, we investigated EPD charging behavior using a transient current, an intermediate-state current, a discharge current, and a current bump. After establishing the microcup EPD model, we developed recommendations for a shortened transition time. As our experiments show, the method can reduce the transition time by 20%. © 2005-2012 IEEE. Source


Kao W.-C.,National Taiwan Normal University | Wu G.-F.,National Taiwan Normal University | Shih Y.-L.,National Taiwan Normal University | Chang W.-D.,National Taiwan Normal University | And 2 more authors.
IEEE/OSA Journal of Display Technology | Year: 2011

In this paper, we propose a real-time hardware engine that performs the image halftoning as well as the photometric calibration for coping with nonlinear optical response of electrophoretic displays (EPDs). The engine quantizes an input image into fewer gray levels on the fly to accommodate the EPD characteristics. Since the number of available gray levels as well as the electro-optical response is temperature dependent, the engine performs adaptive image processing based on temperature dependent characteristics. The experimental results show that the performance of the proposed hardware engine meets the specification of real-time applications, and the quality of the displayed image can be significantly improved. © 2006 IEEE. Source


Wu S.-I.,National Chiao Tung University | Lin F.-C.,National Chiao Tung University | Huang Y.-P.,National Chiao Tung University | Shieh H.-P.D.,National Chiao Tung University | And 4 more authors.
Digest of Technical Papers - SID International Symposium | Year: 2011

To fully understand the physical mechanism in electrophoretic displays, both current and optical responses are discussed to investigate the charging behavior, including the transient current, intermediate-state current, discharge current, and the observed bump characteristics, along with their applications. © 2011 SID. Source


Wu S.-I.,National Chiao Tung University | Lin F.-C.,National Chiao Tung University | Huang Y.-P.,National Chiao Tung University | Shieh H.-P.D.,National Chiao Tung University | And 4 more authors.
49th Annual SID Symposium, Seminar, and Exhibition 2011, Display Week 2011 | Year: 2011

To fully understand the physical mechanism in electrophoretic displays, both current and optical responses are discussed to investigate the charging behavior, including the transient current, intermediate-state current, discharge current, and the observed bump characteristics, along with their applications. Source

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