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Enhancement of the Luminance Uniformity in Large-Size Organic Light-Emitting Devices Based on In-Ga-Zn-O Thin-Film Transistors by Using a New Compensation Method
2019
IEEE Journal of the Electron Devices Society
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The variations in the threshold voltage and the mobility of In-Ga-Zn-O thin-film transistors (TFTs) were significantly compensated by the proposed compensation method. The luminance difference at each pixel in the large-size organic light-emitting devices (OLEDs) was dramatically decreased less than 10% due to the stich mural and the applied data voltage difference at low gray scale level. Luminance uniformities of up to 99% were achieved for all gray levels of the OLEDs by using the external
doi:10.1109/jeds.2019.2914497
fatcat:ufnrl4ks7namvh4ebym76gkh64