Title:
QUANTUM DOT, METHOD FOR MANUFACTURING SAME, WAVELENGTH CONVERSION MEMBER USING QUANTUM DOT, ILLUMINATION MEMBER, BACKLIGHT DEVICE, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/074083
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a Cd-free quantum dot that has a narrow full width at half maximum and emits blue fluorescence. This quantum dot (1) is characterized by not containing cadmium and by having a full width at half maximum of no more than 25 nm. In the present invention, the quantum dot is preferably a nanocrystal either containing zinc and selenium or containing zinc, selenium, and sulfur. The quantum dot also preferably has a core-shell structure in which the nanocrystal serves as a core (1a) and the surface of the core is covered by a shell (1b).
Inventors:
OGURA YUKO (JP)
TAKAMIZUMA YUKA (JP)
IIDA KAZUNORI (JP)
TSUTSUMI EMI (JP)
TANAKA MASANORI (JP)
NIKATA SOICHIRO (JP)
TAKAMIZUMA YUKA (JP)
IIDA KAZUNORI (JP)
TSUTSUMI EMI (JP)
TANAKA MASANORI (JP)
NIKATA SOICHIRO (JP)
Application Number:
PCT/JP2018/038038
Publication Date:
April 18, 2019
Filing Date:
October 12, 2018
Export Citation:
Assignee:
NS MAT INC (JP)
International Classes:
C09K11/88; C01B19/04; F21V7/30; H01L33/50; F21Y115/10
Domestic Patent References:
| WO2009034777A1 | 2009-03-19 | |||
| WO2017086362A1 | 2017-05-26 | |||
| WO2007060889A1 | 2007-05-31 |
Foreign References:
| JP2002525394A | 2002-08-13 | |||
| JP2017198667A | 2017-11-02 |
Other References:
ORGANIC ELECTRONICS, vol. 15, 2014, pages 126 - 131
MATERIALS SCIENCE AND ENGINEERING C, vol. 64, 2016, pages 167 - 172
See also references of EP 3696248A4
MATERIALS SCIENCE AND ENGINEERING C, vol. 64, 2016, pages 167 - 172
See also references of EP 3696248A4
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
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