Lifetime estimation of thin-film transistors in organic emitting diode display panels with compensation
- Title
- Lifetime estimation of thin-film transistors in organic emitting diode display panels with compensation
- Author
- 오새룬터
- Issue Date
- 2023-10
- Publisher
- Nature Publishing Group
- Citation
- Scientific Reports, v. 13, NO. 1, article no. 17590, Page. 1.0-11.0
- Abstract
- Oxide semiconductor thin-film transistors (TFTs) are used in the pixel array and gate driver circuits of organic light emitting diode (OLED) display panels. Long-term reliability characteristics of the TFTs are a barometer of the lifetime of OLED display panels. The long-term reliability of the driver TFTs is evaluated in a short time under high voltages and high temperature for an accelerated degradation test. If reliability parameters from the power law or stretched-exponential functions are the same for individual devices and devices in an operating panel, the lifetime of the panel can be accurately estimated. However, since compensation circuits are designed into operating panels, an environmental discrepancy exists between the accelerated test of single devices and the operation of devices in the panel. Herein, we propose a novel compensation stretched-exponential function (CSEF) model which captures the effect of the threshold voltage compensation circuit in the panel. The CSEF model not only bridges the discrepancy between individual devices and panel devices, but also provides a method to accurately and efficiently estimate the long-term lifetime of all display panels that utilize compensation circuits. © 2023, Springer Nature Limited.
- URI
- https://www.proquest.com/docview/2877592799?accountid=11283https://repository.hanyang.ac.kr/handle/20.500.11754/187676
- ISSN
- 2045-2322
- DOI
- 10.1038/s41598-023-44684-5
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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- 109674_오새룬터.pdfDownload
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