High Resolution a-IGZO TFT Pixel Circuit for Compensating Threshold Voltage Shifts and OLED Degradations
نویسندگان
چکیده
منابع مشابه
a-IGZO TFT Based Pixel Circuits for AM-OLED Displays
In this paper, we analyze application of amorphous Indium– Gallium–Zinc–Oxide thin film transistors (a-InGaZnO TFTs) to voltage-driven pixel electrode circuit that could be used for 4.3in. wide video graphics array (WVGA) full color active-matrix organic light-emitting displays (AM-OLEDs). Simulation results, based on a-InGaZnO TFT and OLED experimental data, show that both device sizes and ope...
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 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 کاملDesign of Organic TFT Pixel Electrode Circuit for Active-Matrix OLED Displays
A new current-programming pixel circuit for active-matrix organic light-emitting diode (AM-OLED) displays, composed of four organic thin-film transistors (OTFTs) and one capacitor, has been designed, simulated and evaluated. The most critical issue in realizing AMOLED displays with OTFTs is the variation and aging of the driving-TFTs and degradation of OLEDs. This can cause image sticking or de...
متن کاملThree TFT Pixel Circuit with Highly stable OLED Current for AMOLED Displays
This work proposes a novel voltage-programming pixel circuit for AMOLED using a-Si:H technology. The proposed 3T1C circuit can stabilize the output current regardless of VTH shift and OLED degradation. Experimental results indicate that the OLED current degradation is less than 3% over more than 16 h of operation.
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: IEEE Journal of the Electron Devices Society
سال: 2017
ISSN: 2168-6734
DOI: 10.1109/jeds.2017.2716368