{"title":"Development of the ink-jet printing technology for 55-inch 8K AMQLED display","authors":"Yuanming Zhang, Xu Yuan, Zhuo Chen, Dong Li, Jingwen Feng, Yang Gao, Yanzhao Li, Xinguo Li, Xiaoguang Xu","doi":"10.1002/jsid.1217","DOIUrl":null,"url":null,"abstract":"<p>In this paper, we obtained the optimal structure of QLED top-emission spin-coating device. Meanwhile, we also have successfully developed quantum dots and ZnO ink materials with high stability. With the top-emission device structure and stable ink materials, we optimize the morphology of every film by controlling the drying process after ink-jet printing. The emission area of united devices prepared by using the optimized ink-jet printing process is equal to the designed area of pixels, with clear boundaries, uniform electroluminescent morphologies within a single sub-pixel, and no significant difference in luminescence between pixels. Finally, we assembled and fabricated a 55-in. 8K AMQLED display with a color gamut of 116% NTSC.</p>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":null,"pages":null},"PeriodicalIF":1.7000,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Society for Information Display","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/jsid.1217","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, we obtained the optimal structure of QLED top-emission spin-coating device. Meanwhile, we also have successfully developed quantum dots and ZnO ink materials with high stability. With the top-emission device structure and stable ink materials, we optimize the morphology of every film by controlling the drying process after ink-jet printing. The emission area of united devices prepared by using the optimized ink-jet printing process is equal to the designed area of pixels, with clear boundaries, uniform electroluminescent morphologies within a single sub-pixel, and no significant difference in luminescence between pixels. Finally, we assembled and fabricated a 55-in. 8K AMQLED display with a color gamut of 116% NTSC.
期刊介绍：
The Journal of the Society for Information Display publishes original works dealing with the theory and practice of information display. Coverage includes materials, devices and systems; the underlying chemistry, physics, physiology and psychology; measurement techniques, manufacturing technologies; and all aspects of the interaction between equipment and its users. Review articles are also published in all of these areas. Occasional special issues or sections consist of collections of papers on specific topical areas or collections of full length papers based in part on oral or poster presentations given at SID sponsored conferences.
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