Chinese Journal of Liquid Crystals and Displays, Volume. 37, Issue 9, 1140(2022)

Research progress of OLED sticking image

Le WENG1, Da-wei SHI2, Jian GUO2, and Zhi-nong YU1、*
Author Affiliations
  • 1School of Optics and Photonics, Beijing Engineering Research Center of Mixed Reality and Advanced Display, Beijing Institute of Technology, Beijing 100081, China
  • 2Chongqing BOE Display Technology Co., Ltd., Chongqing 400714, China
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    Organic Light-Emitting Diode (OLED) display technology exhibits the advantages of wide color gamut, low energy consumption and flexibility through the self-luminescence of organic materials, and is one of the most promising display technologies. At present, OLED displays still have problems such as short lifetime, low brightness and poor reliability. These problems eventually lead to the occurrence of sticking image. This paper aims to analyze and summarize the research progress and related solutions of OLED sticking image. Firstly, the relationship between OLED sticking image problem and OLED material lifetime as well as thin film transistor (TFT) stability is explained, focusing on the structural difference between flexible and rigid OLED devices, and the principle of OLED sticking image is further generalized. Secondly, for different causes of sticking image, the methods to alleviate and compensate OLED display sticking image are discussed, including schemes to improve the lifetime of organic materials, threshold voltage stability of TFT, and external compensation circuits. Finally, the further solution to the OLED display sticking image is prospected.

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    Le WENG, Da-wei SHI, Jian GUO, Zhi-nong YU. Research progress of OLED sticking image[J]. Chinese Journal of Liquid Crystals and Displays, 2022, 37(9): 1140

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    Paper Information

    Category: Research Articles

    Received: Apr. 15, 2022

    Accepted: --

    Published Online: Sep. 19, 2022

    The Author Email: Zhi-nong YU (znyu@bit.edu.cn)

    DOI:10.37188/CJLCD.2022-0128

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