Ultra-high-image-density large-size organic light-emitting devices based on In-Ga-Zn-O thin-film transistors with a coplanar structureopen access
- Authors
- Shin, Hong Jae; Kim, Tae Whan
- Issue Date
- Jun-2018
- Publisher
- OPTICAL SOC AMER
- Citation
- OPTICS EXPRESS, v.26, no.13, pp.16805 - 16812
- Indexed
- SCIE
SCOPUS
- Journal Title
- OPTICS EXPRESS
- Volume
- 26
- Number
- 13
- Start Page
- 16805
- End Page
- 16812
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/3907
- DOI
- 10.1364/OE.26.016805
- ISSN
- 1094-4087
- Abstract
- Drain currents as functions of the gate voltages for the thin-film transistors (TFTs) showed that their output currents had slight differential variations in the saturation region just as the output currents of the etch stopper TFTs did. The maximum difference in the threshold voltages for the In-Ga-Zn-O (a-IGZO) TFTs was as small as approximately 0.57 V. The color gamut of organic light-emitting devices (OLEDs) embedded with TFTs with a coplanar structure satisfied the digital cinema initiatives of 99%. Furthermore. the image density of large-size OLEDs embedded with TFTs with a coplanar structure was significantly enhanced in comparison with that of OLEDs embedded with conventional TFTs.
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