Voltage-Programming-Based Pixel Circuit to Compensate for Threshold Voltage and Mobility Using Natural Capacitance of Organic Light-Emitting Diode
SCIE
- Title
- Voltage-Programming-Based Pixel Circuit to Compensate for Threshold Voltage and Mobility Using Natural Capacitance of Organic Light-Emitting Diode
- Authors
- Park, YJ; Jung, MH; Park, SH; Kim, O
- Date Issued
- 2010-01
- Publisher
- JAPAN SOC APPLIED PHYSICS
- Abstract
- A voltage-programming-based pixel circuit with three thin-film transistors (TFTs) and one capacitor (3T1C) is proposed and simulated for active-matrix organic light-emitting diode (AMOLED) displays. Unlike the previously published voltage-programming pixel circuits, which only compensate for threshold voltage (V-T) unevenness, this circuit also compensates for mobility (mu) unevenness. OLEDs can be used not only as light-emitting devices but also as capacitors. This circuit uses the natural capacitance of OLEDs to compensate for the mobility unevenness. The Rensselaer Polytechnic Institute (RPI) model of smart simulation program with integrated circuit emphasis (SMART SPICE) is used to simulate the circuit. Moreover, we propose another pixel circuit that consists of three TFTs and two capacitors (3T2C). The additional capacitor allows control of the range of the data voltage of each color. (C) 2010 The Japan Society of Applied Physics
- Keywords
- DISPLAYS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/25602
- DOI
- 10.1143/JJAP.49.03CD01
- ISSN
- 0021-4922
- Article Type
- Article
- Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 49, no. 3, 2010-01
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.