Highly Stable White Light-Emitting Diodes Based on Quantum-Dots Dispersed Into the Backlight Lens for Display Backlight
A novel package structure has been developed to fabricate quantum-dot (QD) white light-emitting diodes (WLEDs) by dispersing QDs into the backlight lens and integrating them with blue light-emitting diode to form white light. For this in-lens encapsulation structure, the luminous efficiency and life...
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8712506/ |
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| author | Xin Yang Xu-Yan Lan Yu-Sheng Liu Hui-Yu Yang Yi Li Shu-Wen Zheng Yong Zhang |
| author_facet | Xin Yang Xu-Yan Lan Yu-Sheng Liu Hui-Yu Yang Yi Li Shu-Wen Zheng Yong Zhang |
| author_sort | Xin Yang |
| collection | DOAJ |
| description | A novel package structure has been developed to fabricate quantum-dot (QD) white light-emitting diodes (WLEDs) by dispersing QDs into the backlight lens and integrating them with blue light-emitting diode to form white light. For this in-lens encapsulation structure, the luminous efficiency and lifetime of QD-WLEDs can reach 90 lm/W and 1000 h, which is 25 times longer than that of QD-WLEDs with on-chip encapsulation structure. Furthermore, a 32-inch prototype liquid crystal display TV shows a wide color gamut of 108% under the National Television Systems Committee standard with this in-lens encapsulation structure. The improvement performance should be attributed to providing a hermetic encapsulation environment preventing oxygen and water from reacting with the QDs and reducing the temperature of QDs due to in-lens package structure. Our results demonstrate that the in-lens solution can be a promising application in display backlight. |
| format | Article |
| id | doaj-art-27637508e36b4a7883444852ff089b6c |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-27637508e36b4a7883444852ff089b6c2025-08-20T03:16:04ZengIEEEIEEE Photonics Journal1943-06552019-01-011131710.1109/JPHOT.2019.29160848712506Highly Stable White Light-Emitting Diodes Based on Quantum-Dots Dispersed Into the Backlight Lens for Display BacklightXin Yang0Xu-Yan Lan1Yu-Sheng Liu2Hui-Yu Yang3Yi Li4Shu-Wen Zheng5Yong Zhang6https://orcid.org/0000-0001-7718-5945Institute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou, ChinaInstitute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou, ChinaInstitute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou, ChinaInstitute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou, ChinaInstitute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou, ChinaInstitute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou, ChinaInstitute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou, ChinaA novel package structure has been developed to fabricate quantum-dot (QD) white light-emitting diodes (WLEDs) by dispersing QDs into the backlight lens and integrating them with blue light-emitting diode to form white light. For this in-lens encapsulation structure, the luminous efficiency and lifetime of QD-WLEDs can reach 90 lm/W and 1000 h, which is 25 times longer than that of QD-WLEDs with on-chip encapsulation structure. Furthermore, a 32-inch prototype liquid crystal display TV shows a wide color gamut of 108% under the National Television Systems Committee standard with this in-lens encapsulation structure. The improvement performance should be attributed to providing a hermetic encapsulation environment preventing oxygen and water from reacting with the QDs and reducing the temperature of QDs due to in-lens package structure. Our results demonstrate that the in-lens solution can be a promising application in display backlight.https://ieeexplore.ieee.org/document/8712506/Quantum-dots (QDs)white light-emitting diodes (WLEDs)in-lenson-chipdisplay backlight |
| spellingShingle | Xin Yang Xu-Yan Lan Yu-Sheng Liu Hui-Yu Yang Yi Li Shu-Wen Zheng Yong Zhang Highly Stable White Light-Emitting Diodes Based on Quantum-Dots Dispersed Into the Backlight Lens for Display Backlight IEEE Photonics Journal Quantum-dots (QDs) white light-emitting diodes (WLEDs) in-lens on-chip display backlight |
| title | Highly Stable White Light-Emitting Diodes Based on Quantum-Dots Dispersed Into the Backlight Lens for Display Backlight |
| title_full | Highly Stable White Light-Emitting Diodes Based on Quantum-Dots Dispersed Into the Backlight Lens for Display Backlight |
| title_fullStr | Highly Stable White Light-Emitting Diodes Based on Quantum-Dots Dispersed Into the Backlight Lens for Display Backlight |
| title_full_unstemmed | Highly Stable White Light-Emitting Diodes Based on Quantum-Dots Dispersed Into the Backlight Lens for Display Backlight |
| title_short | Highly Stable White Light-Emitting Diodes Based on Quantum-Dots Dispersed Into the Backlight Lens for Display Backlight |
| title_sort | highly stable white light emitting diodes based on quantum dots dispersed into the backlight lens for display backlight |
| topic | Quantum-dots (QDs) white light-emitting diodes (WLEDs) in-lens on-chip display backlight |
| url | https://ieeexplore.ieee.org/document/8712506/ |
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