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Title:
WHITE LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/135744
Kind Code:
A3
Abstract:
The present invention relates to a light-emitting device including a light source, a first light-emitting material spaced apart from the light source, and at least one additional light-emitting material. The first light-emitting material includes low reabsorbing semiconductor nanocrystals having an emission-center core, an exterior protective shell, and at least one inner light-absorbing shell. The device is useful for efficiently producing white light having a high color rendering index.

Inventors:
SU, Kai (5809 Wildflower Circle, Midland, Michigan, 48642, US)
BI, Wengang (101 Stevie Court, Fremont, California, 94539, US)
WENG, Zhaorong (292-1-202 Wulin Road, Hangzhou, Zhejiang 6, 310006, CN)
BATTAGLIA, David (3251 N. Warwick Drive, Fayettville, Arkansas, 72703, US)
ZHU, Haoguo (1810 Ponter Lane, Fayettville, Arkansas, 72701, US)
Application Number:
US2012/031655
Publication Date:
November 22, 2012
Filing Date:
March 30, 2012
Export Citation:
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Assignee:
SU, Kai (5809 Wildflower Circle, Midland, Michigan, 48642, US)
BI, Wengang (101 Stevie Court, Fremont, California, 94539, US)
WENG, Zhaorong (292-1-202 Wulin Road, Hangzhou, Zhejiang 6, 310006, CN)
BATTAGLIA, David (3251 N. Warwick Drive, Fayettville, Arkansas, 72703, US)
ZHU, Haoguo (1810 Ponter Lane, Fayettville, Arkansas, 72701, US)
International Classes:
H01J1/62
Foreign References:
US20080279242A12008-11-13
US20100289044A12010-11-18
US20080173845A12008-07-24
US20100316797A12010-12-16
Other References:
STOUWDAM ET AL.: "Red, green, and blue quantum dot LEDs with solution processable ZnO nanocrystal electron injection layers", 6 February 2008 (2008-02-06), pages 1890 - 1891, Retrieved from the Internet [retrieved on 20120826]
ANIKEEVA ET AL.: "Quantum Dot Light-Emitting Devices with Electroluminescence Tunable over the Entire Visible Spectrum", 1 May 2009 (2009-05-01), Retrieved from the Internet [retrieved on 20120826]
Attorney, Agent or Firm:
BLANK, Lynne (1791 Plank Road, Webster, New York, 14580, US)
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