Browsing by Author "Huang, Jian-Zhi"

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Adaptive current scaling pixel circuit for a-Si : H AMOLED
(2005)
Huang, Jian-Zhi
;
Cheng, Jung-An
;
Lin, Yen-Chung
;
Cheng, Wayne
;
Shieh, Han-Ping D.
An adaptive current scaling pixel circuit for a-Si:H TFT process has been demonstrated. The adaptive current scaling is achieved by insetting a small cascaded storage capacitor to the traditional pixel circuit without affecting the aperture ratio. The proposed pixel circuit is capable of shorting the programming time without sacrificing the power consumption. Hence, the proposed pixel circuit is suitable for the large size and high resolution AMOLED application.
Implementation of a-Si : H TFT AMOLED display with adaptive current scaling pixel circuit
(2007)
Yang, Chia-Feng
;
Wang, Jiun-Shiau
;
Huang, Jian-Zhi
;
Shieh, Han-Ping D.
;
光電工程學系
An active matrix organic light emitting diode (AMOLED) display with adaptive current scaling pixel circuit for a-Si: H TFT process has been demonstrated. In contrast to the conventional current-driven pixel circuit, the adaptive current scaling pixel circuit can shorten the response time effectively while displaying low gray level images due to the outstanding current scaling function and avoid data programming error resulted from long charging time. Moreover, it can also compensate for the variations of the TFT threshold voltage.