A real time video data adjusting method for active matrix organic light emitting diode displays with high image quality

Ung Gyu Min, Hai Jung In, Oh Kyong Kwon

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

A real time video data adjusting method for television applications of active matrix organic light emitting diode (AMOLED) displays with high image quality is proposed. The proposed method senses electrical characteristics of polycrystalline silicon (poly-Si) thin film transistors (TFTs) and organic light emitting diode (OLED) of pixels and compensates nonuniform luminance due to the electrical characteristic variations of TFTs and the degradation of OLEDs by adjusting video data. The sensing and compensation operations are performed while the image is displayed on the screen. Experimental results show that the luminance error is improved from 92.1% to 0.8% when the proposed adjusting method is used. The proposed method is demonstrated on 14.1-inch AMOLED display panel1.

Original languageEnglish
Article number5373812
Pages (from-to)2372-2376
Number of pages5
JournalIEEE Transactions on Consumer Electronics
Volume55
Issue number4
DOIs
StatePublished - 2009 Nov 1

Keywords

  • Compensation
  • Flat panel displays
  • Light-emitting diode displays
  • Thin film transistors

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