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WO2021075394A1 - Dispositif électroluminescent - Google Patents

Dispositif électroluminescent Download PDF

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Publication number
WO2021075394A1
WO2021075394A1 PCT/JP2020/038429 JP2020038429W WO2021075394A1 WO 2021075394 A1 WO2021075394 A1 WO 2021075394A1 JP 2020038429 W JP2020038429 W JP 2020038429W WO 2021075394 A1 WO2021075394 A1 WO 2021075394A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light emitting
wavelength conversion
sheet
conversion member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/038429
Other languages
English (en)
Japanese (ja)
Inventor
宮永　昭治
堀口　雅之
美佳 庭木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NS Materials Inc
Original Assignee
NS Materials Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NS Materials Inc filed Critical NS Materials Inc
Publication of WO2021075394A1 publication Critical patent/WO2021075394A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/851—Wavelength conversion means

Definitions

  • Quantum dots are nanoparticles with a particle size of several nm to several tens of nm, which are composed of hundreds to thousands of atoms. Quantum dots are also called fluorescent nanoparticles, semiconductor nanoparticles, or nanocrystals.
  • ligands 11 are coordinated on the surface of the quantum dots 10. As a result, aggregation of quantum dots can be suppressed and the desired optical characteristics are exhibited.
  • the ligand that can be used in the reaction is not particularly limited, and examples thereof include the following ligands.
  • Polyether-based, polyalkylene polyamine, alkyl sulfonate-based, quaternary ammonium salt-based, higher alcohol alkylene oxide-based, polyhydric alcohol ester-based, alkyl polyamine-based, or polyphosphate-based dispersant Specifically, DISPERBYK (registered trademark) manufactured by Big Chemie Japan Co., Ltd. can be exemplified.
  • the plurality of light emitting elements 2 shown in FIG. 2 are supported so that the presence or absence of light emission can be selected, that is, not only all the light emitting elements 2 are turned on, but also, for example, only one light emitting element 2 can be turned on. It is possible.
  • a driving method is called a dimming, a local dimming, an area division method or the like.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Led Device Packages (AREA)
  • Planar Illumination Modules (AREA)

Abstract

L'objectif de la présente invention est de fournir un dispositif électroluminescent qui peut émettre une lumière blanche, et qui est configuré de telle sorte que le coût de fabrication d'un élément de conversion de longueur d'onde peut être supprimé. Un dispositif électroluminescent (1) selon la présente invention comprend un élément électroluminescent (2) et une feuille de conversion de longueur d'onde (3) disposée sur le côté de rayonnement de lumière de l'élément électroluminescent, le dispositif électroluminescent étant caractérisé en ce que : l'élément électroluminescent est réglé de façon à pouvoir produire une lumière colorée résultant du mélange d'une lumière visible non bleue avec une lumière bleue ; l'élément de conversion de longueur d'onde comprend des particules fluorescentes rouges et des particules fluorescentes vertes ; et la lumière provenant de l'élément électroluminescent est émise sous la forme d'une lumière blanche par l'intermédiaire de l'élément de conversion de longueur d'onde.
PCT/JP2020/038429 2019-10-15 2020-10-12 Dispositif électroluminescent Ceased WO2021075394A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019188398 2019-10-15
JP2019-188398 2019-10-15

Publications (1)

Publication Number Publication Date
WO2021075394A1 true WO2021075394A1 (fr) 2021-04-22

Family

ID=75538497

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/038429 Ceased WO2021075394A1 (fr) 2019-10-15 2020-10-12 Dispositif électroluminescent

Country Status (2)

Country Link
TW (1) TW202123496A (fr)
WO (1) WO2021075394A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102509759A (zh) * 2011-08-05 2012-06-20 友达光电股份有限公司 发光装置以及光源模块
JP2013033833A (ja) * 2011-08-01 2013-02-14 Panasonic Corp 波長変換膜及びそれを用いた発光装置並びに照明装置
JP2015084305A (ja) * 2013-10-25 2015-04-30 スタンレー電気株式会社 光照明装置
JP2015516691A (ja) * 2012-05-14 2015-06-11 コーニンクレッカ フィリップス エヌ ヴェ ナノ構造蛍光体を有する発光装置
WO2015141226A1 (fr) * 2014-03-18 2015-09-24 株式会社クラレ Dispositif électronique
JP2017108129A (ja) * 2015-11-30 2017-06-15 隆達電子股▲ふん▼有限公司 波長変換材料およびその用途
JP2018055885A (ja) * 2016-09-27 2018-04-05 エルジー ディスプレイ カンパニー リミテッド 光源装置および表示装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013033833A (ja) * 2011-08-01 2013-02-14 Panasonic Corp 波長変換膜及びそれを用いた発光装置並びに照明装置
CN102509759A (zh) * 2011-08-05 2012-06-20 友达光电股份有限公司 发光装置以及光源模块
JP2015516691A (ja) * 2012-05-14 2015-06-11 コーニンクレッカ フィリップス エヌ ヴェ ナノ構造蛍光体を有する発光装置
JP2015084305A (ja) * 2013-10-25 2015-04-30 スタンレー電気株式会社 光照明装置
WO2015141226A1 (fr) * 2014-03-18 2015-09-24 株式会社クラレ Dispositif électronique
JP2017108129A (ja) * 2015-11-30 2017-06-15 隆達電子股▲ふん▼有限公司 波長変換材料およびその用途
JP2018055885A (ja) * 2016-09-27 2018-04-05 エルジー ディスプレイ カンパニー リミテッド 光源装置および表示装置

Also Published As

Publication number Publication date
TW202123496A (zh) 2021-06-16

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