Sensing TFT Vth by an external algorithm to compensate non-uniformity on AMOLED panel

Kuei Yu Lee*, Chang-Po Chao

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The study proposes an external algorithm to compensate non-uniformity on AMOLED panel. With the method of sensing TFT Vth variation, this external algorithm is designed to correct the data line voltage, V data, in order to maintain the required OLED luminance even though every Vth variation of driving TFTs are different. The algorithm and sensing method are realized on the already proposed 4T0.5C pixel circuit, which is investigated to show the performance of panel non-uniformity compensation in the experiment results. Moreover, the original merits of 4T0.5C pixel circuit like OLED degradation alleviation can be maintained.

Original languageEnglish
Title of host publicationIEEE SENSORS 2012 - Proceedings
DOIs
StatePublished - 1 Dec 2012
Event11th IEEE SENSORS 2012 Conference - Taipei, Taiwan
Duration: 28 Oct 201231 Oct 2012

Publication series

NameProceedings of IEEE Sensors

Conference

Conference11th IEEE SENSORS 2012 Conference
CountryTaiwan
CityTaipei
Period28/10/1231/10/12

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