Inkjet printed uniform quantum dots as color conversion layers for full-color OLED displays

Quantum dots (QDs) have shown great potential for next generation displays owing to their fascinating optoelectronic characteristics. In this work, we present a novel full-color display based on blue organic light emitting diodes (BOLEDs) and patterned red and green QD color conversion layers (CCLs)...

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Published in:Nanoscale Vol. 12; no. 3; p. 2103
Main Authors: Hu, Zhiping, Yin, Yongming, Ali, Muhammad Umair, Peng, Wenxiang, Zhang, Shijie, Li, Dongze, Zou, Taoyu, Li, Yuanyuan, Jiao, Shibo, Chen, Shu-Jhih, Lee, Chia-Yu, Meng, Hong, Zhou, Hang
Format: Journal Article
Language:English
Published: England 23.01.2020
ISSN:2040-3372, 2040-3372
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Abstract Quantum dots (QDs) have shown great potential for next generation displays owing to their fascinating optoelectronic characteristics. In this work, we present a novel full-color display based on blue organic light emitting diodes (BOLEDs) and patterned red and green QD color conversion layers (CCLs). To enable efficient blue-to-green or blue-to-red photoconversion, micrometer-thick QD films with a uniform surface morphology are obtained by utilizing UV-induced polymerization. The uniform QD layers are directly inkjet printed on red and green color filters to further eliminate the residual blue emissions. Based on this QD-BOLED architecture, a 6.6-inch full-color display with 95% Broadcasting Service Television 2020 (BT.2020) color gamut and wide viewing-angles is successfully demonstrated. The inkjet printing method introduced in this work provides a cost-effective way to extend the applications of QDs for full-color displays.
AbstractList Quantum dots (QDs) have shown great potential for next generation displays owing to their fascinating optoelectronic characteristics. In this work, we present a novel full-color display based on blue organic light emitting diodes (BOLEDs) and patterned red and green QD color conversion layers (CCLs). To enable efficient blue-to-green or blue-to-red photoconversion, micrometer-thick QD films with a uniform surface morphology are obtained by utilizing UV-induced polymerization. The uniform QD layers are directly inkjet printed on red and green color filters to further eliminate the residual blue emissions. Based on this QD-BOLED architecture, a 6.6-inch full-color display with 95% Broadcasting Service Television 2020 (BT.2020) color gamut and wide viewing-angles is successfully demonstrated. The inkjet printing method introduced in this work provides a cost-effective way to extend the applications of QDs for full-color displays.Quantum dots (QDs) have shown great potential for next generation displays owing to their fascinating optoelectronic characteristics. In this work, we present a novel full-color display based on blue organic light emitting diodes (BOLEDs) and patterned red and green QD color conversion layers (CCLs). To enable efficient blue-to-green or blue-to-red photoconversion, micrometer-thick QD films with a uniform surface morphology are obtained by utilizing UV-induced polymerization. The uniform QD layers are directly inkjet printed on red and green color filters to further eliminate the residual blue emissions. Based on this QD-BOLED architecture, a 6.6-inch full-color display with 95% Broadcasting Service Television 2020 (BT.2020) color gamut and wide viewing-angles is successfully demonstrated. The inkjet printing method introduced in this work provides a cost-effective way to extend the applications of QDs for full-color displays.
Quantum dots (QDs) have shown great potential for next generation displays owing to their fascinating optoelectronic characteristics. In this work, we present a novel full-color display based on blue organic light emitting diodes (BOLEDs) and patterned red and green QD color conversion layers (CCLs). To enable efficient blue-to-green or blue-to-red photoconversion, micrometer-thick QD films with a uniform surface morphology are obtained by utilizing UV-induced polymerization. The uniform QD layers are directly inkjet printed on red and green color filters to further eliminate the residual blue emissions. Based on this QD-BOLED architecture, a 6.6-inch full-color display with 95% Broadcasting Service Television 2020 (BT.2020) color gamut and wide viewing-angles is successfully demonstrated. The inkjet printing method introduced in this work provides a cost-effective way to extend the applications of QDs for full-color displays.
Author Ali, Muhammad Umair
Li, Yuanyuan
Peng, Wenxiang
Zou, Taoyu
Lee, Chia-Yu
Zhou, Hang
Zhang, Shijie
Chen, Shu-Jhih
Meng, Hong
Li, Dongze
Yin, Yongming
Jiao, Shibo
Hu, Zhiping
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  givenname: Zhiping
  surname: Hu
  fullname: Hu, Zhiping
  email: zhipinghu@pku.edu.cn, zhouh81@pku.edu.cn
  organization: Shenzhen Graduate School, Peking University, Shenzhen 518055, China. zhipinghu@pku.edu.cn zhouh81@pku.edu.cn
– sequence: 2
  givenname: Yongming
  surname: Yin
  fullname: Yin, Yongming
– sequence: 3
  givenname: Muhammad Umair
  surname: Ali
  fullname: Ali, Muhammad Umair
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  givenname: Wenxiang
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  fullname: Lee, Chia-Yu
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  givenname: Hong
  surname: Meng
  fullname: Meng, Hong
– sequence: 13
  givenname: Hang
  surname: Zhou
  fullname: Zhou, Hang
BackLink https://www.ncbi.nlm.nih.gov/pubmed/31913379$$D View this record in MEDLINE/PubMed
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