{"title":"通过低温多晶硅薄膜晶体管的瞬态分析减少有机发光二极管显示屏的短时图像粘滞现象","authors":"Jiwook Hong , Jaewon Lim , Jongwook Jeon","doi":"10.1016/j.displa.2024.102794","DOIUrl":null,"url":null,"abstract":"<div><p>Accurate compensation operation of low-temperature polycrystalline-silicon (LTPS) thin-film transistor (TFT) in pixel circuits is crucial to achieve steady and uniform luminance in organic light-emitting diode (OLED) display panels. However, the device characteristics fluctuate over time due to various traps in the LTPS thin film transistor and at the interface with the gate insulator, resulting in abnormal phenomena such as short-time image sticking and luminance fluctuation, which degrade display quality during image change. Considering these phenomena, transient analysis was conducted through device simulation to optimize the pixel compensation circuit. In particular, we analyzed the behavior of traps within LTPS TFT in correlation with compensation circuit operation, and based on this, proposed a methodology for designing a reset voltage scheme for the driver TFT to reduce the image sticking phenomenon.</p></div>","PeriodicalId":50570,"journal":{"name":"Displays","volume":"84 ","pages":"Article 102794"},"PeriodicalIF":3.7000,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0141938224001586/pdfft?md5=af589a6e358a315d9e0495f42299ea93&pid=1-s2.0-S0141938224001586-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Reduction of short-time image sticking in organic light-emitting diode display through transient analysis of low-temperature polycrystalline silicon thin-film transistor\",\"authors\":\"Jiwook Hong , Jaewon Lim , Jongwook Jeon\",\"doi\":\"10.1016/j.displa.2024.102794\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Accurate compensation operation of low-temperature polycrystalline-silicon (LTPS) thin-film transistor (TFT) in pixel circuits is crucial to achieve steady and uniform luminance in organic light-emitting diode (OLED) display panels. However, the device characteristics fluctuate over time due to various traps in the LTPS thin film transistor and at the interface with the gate insulator, resulting in abnormal phenomena such as short-time image sticking and luminance fluctuation, which degrade display quality during image change. Considering these phenomena, transient analysis was conducted through device simulation to optimize the pixel compensation circuit. In particular, we analyzed the behavior of traps within LTPS TFT in correlation with compensation circuit operation, and based on this, proposed a methodology for designing a reset voltage scheme for the driver TFT to reduce the image sticking phenomenon.</p></div>\",\"PeriodicalId\":50570,\"journal\":{\"name\":\"Displays\",\"volume\":\"84 \",\"pages\":\"Article 102794\"},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2024-07-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0141938224001586/pdfft?md5=af589a6e358a315d9e0495f42299ea93&pid=1-s2.0-S0141938224001586-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Displays\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0141938224001586\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"COMPUTER SCIENCE, HARDWARE & ARCHITECTURE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Displays","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0141938224001586","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"COMPUTER SCIENCE, HARDWARE & ARCHITECTURE","Score":null,"Total":0}
Reduction of short-time image sticking in organic light-emitting diode display through transient analysis of low-temperature polycrystalline silicon thin-film transistor
Accurate compensation operation of low-temperature polycrystalline-silicon (LTPS) thin-film transistor (TFT) in pixel circuits is crucial to achieve steady and uniform luminance in organic light-emitting diode (OLED) display panels. However, the device characteristics fluctuate over time due to various traps in the LTPS thin film transistor and at the interface with the gate insulator, resulting in abnormal phenomena such as short-time image sticking and luminance fluctuation, which degrade display quality during image change. Considering these phenomena, transient analysis was conducted through device simulation to optimize the pixel compensation circuit. In particular, we analyzed the behavior of traps within LTPS TFT in correlation with compensation circuit operation, and based on this, proposed a methodology for designing a reset voltage scheme for the driver TFT to reduce the image sticking phenomenon.
期刊介绍：
Displays is the international journal covering the research and development of display technology, its effective presentation and perception of information, and applications and systems including display-human interface.
Technical papers on practical developments in Displays technology provide an effective channel to promote greater understanding and cross-fertilization across the diverse disciplines of the Displays community. Original research papers solving ergonomics issues at the display-human interface advance effective presentation of information. Tutorial papers covering fundamentals intended for display technologies and human factor engineers new to the field will also occasionally featured.
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