Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Display Technology
  • Vol. 9,
  • Issue 7,
  • pp. 572-576
  • (2013)

An AC Driving Pixel Circuit Compensating for TFTs Threshold-Voltage Shift and OLED Degradation for AMOLED

Not Accessible

Your library or personal account may give you access

Abstract

This paper presents an ac driving pixel circuit for active-matrix organic light-emitting diode (AMOLED) displays, which is composed of one driving thin-film transistor (TFT), three switching TFTs and one capacitor. The proposed pixel circuit can not only make OLED work at the ac driving mode, but also effectively compensate for the threshold-voltage shift of the driving TFT and the degradation of OLED. Simulation results show that the nonuniformity of the proposed pixel circuit is significantly reduced ( $< {{10}}\%$ ) with an average value of 4.2% compared with that of the conventional 2T1C pixel circuit, and thus, the brightness uniformity of AMOLED displays can be enhanced. Moreover, a high contrast ratio can be achieved by the proposed pixel circuit due to no light emitting except for the emission period, as well as a relatively high aperture ratio due to a small number of components.

© 2013 IEEE

PDF Article
More Like This
Optimal scan strategy for mega-pixel and kilo-gray-level OLED-on-silicon microdisplay

Yuan Ji, Feng Ran, Weigui Ji, Meihua Xu, Zhangjing Chen, Yuxi Jiang, and Weixin Shen
Appl. Opt. 51(17) 3731-3743 (2012)

Analysis and optimization on the angular color shift of RGB OLED displays

Guanjun Tan, Jiun-Haw Lee, Sheng-Chieh Lin, Ruidong Zhu, Sang-Hun Choi, and Shin-Tson Wu
Opt. Express 25(26) 33629-33642 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved