Title:
LIGHT EMITTING DEVICE AND MANUFACTURING APPARATUS OF LIGHT EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/049190
Kind Code:
A1
Abstract:
In order to provide a light-emitting device in which narrow-spectrum fluorescent light is obtained more efficiently, this light-emitting device (2) comprises a light-emitting layer (10) in which phosphors (20) with thermally activated delayed phosphorescence and quantum dots (22) are dispersed, a first electrode (4) in a layer below the light emitting layer (10), and a second electrode (16) in a layer above the light-emitting layer (10), wherein there is at least partial overlap between the light emission spectrum of the phosphors (20) with thermally activated delayed phosphorescence and the absorption spectrum of the quantum dots (22).
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Inventors:
TSUKAMOTO YUTO
KAWATO SHINICHI
UMEDA TOKIYOSHI
NIBOSHI MANABU
NAKANISHI YOUHEI
UTSUMI HISAYUKI
KANEHIRO MASAYUKI
OKAMOTO SHOTA
KAWATO SHINICHI
UMEDA TOKIYOSHI
NIBOSHI MANABU
NAKANISHI YOUHEI
UTSUMI HISAYUKI
KANEHIRO MASAYUKI
OKAMOTO SHOTA
Application Number:
PCT/JP2017/031893
Publication Date:
March 14, 2019
Filing Date:
September 05, 2017
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
G09F9/30; H05B33/14; H01L27/32; H05B33/10; H05B33/12; H05B33/22
Foreign References:
| CN105870347A | 2016-08-17 | |||
| US20170186986A1 | 2017-06-29 | |||
| JP2017509165A | 2017-03-30 | |||
| JP2012186460A | 2012-09-27 | |||
| US20170186988A1 | 2017-06-29 | |||
| JP2015220069A | 2015-12-07 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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