5-TFT OLED Pixel Circuit Compensating Threshold Voltage Variation of p-channel Poly-Si TFTs
نویسندگان
چکیده
منابع مشابه
Poly-Si TFT Pixel Circuits using Solid Phase Crystallized Silicon for AM-OLED Backplane
We report on high-performance, furnaceannealed polysilicon thin film transistors (TFT) without hydrogenation step fabricated on glass and implemented on OLED-pixel circuits. Our results show that an increase of the mobility parameter results in a higher current variations, so p-type TFT circuits are preferable. Moreover, measurements reveal that using such material threshold compensation is not...
متن کامل3-TFT OLED Pixel Circuit for High Stability with In-pixel Current Source
A new 3-TFT voltage-programmed pixel circuit with an in-pixel current source is presented, which can be largely insensitive to the TFT threshold voltage shift. The fabricated pixel circuit provides OLED current ranging from 25nA to 2.9μA, an on/off ratio of 116 at typical QVGA display timing. Author
متن کاملNovel a-Si:H TFT Vth Compensation Pixel Circuit for AMOLED
A pixel design for active matrix organic light emitting diode (AM-OLED) displays employing hydrogenated amorphous silicon (a-Si:H) thin film transistors (TFTs) is proposed. The proposed pixel circuit, which composed of five TFTs and one capacitor, could compensate the shift of threshold voltage of OLED as well as the threshold voltage of a-Si:H. We fabricated the pixel circuits on the glass sub...
متن کاملA New Voltage-Programmed Pixel Structure Compensating for Threshold Voltage Shift of Organic Thin Film Transistor
A new voltage-programmed pixel circuit using soluble-processed organic thin film transistors (OTFTs) for an active matrix organic light emitting diode (AMOLED) is proposed. The proposed circuit is composed of four switching TFTs, one driving TFT and one storage capacitor, which is simulated by HSPICE. The proposed circuit can compensate for the non-uniformity of OLED current caused by the thres...
متن کامل7.3: Reliability Enhancement of AM-OLED with a-Si:H TFT and Top-Anode OLED Employing a New Pixel Circuit
Abstract: This paper reports a new pixel circuit suitable for enhancing the reliability of AM-OLED with the a-Si:H TFT backplane and top-anode OLED structure. The propose pixel circuit is composed of 5 a-Si:H TFTs for switching and driving device, and it does not require any complicated drive ICs. The compensation of OLED current against threshold voltage shift of the drive TFT has been verifie...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Korea institute of electronic communication sciences
سال: 2014
ISSN: 1975-8170
DOI: 10.13067/jkiecs.2014.9.3.279