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Light emitting composite, light emitting structure, optical sheet and electronic device

一种复合物、发光元件的技术，应用在发光材料、辨认装置、用于材料和表面科学的纳米技术等方向，能够解决低热稳定性、恶化可分散性等问题，达到改善可分散性的效果

Pending Publication Date: 2019-10-25
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, light-emitting elements such as quantum dots can not only agglomerate each other in solvents or polymers and thus show deteriorated dispersibility, but also be fragile with respect to moisture or oxygen and thus can be easily oxidized in air
Additionally, light-emitting elements such as quantum dots can exhibit low thermal stability

Method used

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  • Light emitting composite, light emitting structure, optical sheet and electronic device
  • Light emitting composite, light emitting structure, optical sheet and electronic device
  • Light emitting composite, light emitting structure, optical sheet and electronic device

Examples

Experimental program
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Effect test

preparation Embodiment 1

[0201] Compositions were prepared by adding 1% by weight of aluminum acetoacetate and 1% by weight of photoinitiator (Igacure, BASF) to the light-emitting composite according to Synthesis Example, based on the total weight of the light-emitting composite, to which Propylene glycol monomethyl ether acetate was added to adjust the concentration of the mixture to 35% by weight, and the obtained mixture was mixed with a ball mill for 1 hour to prepare a composition.

Embodiment 1

[0206] The composition according to Preparation Example 1 was spin-coated on a glass substrate, pre-cured (pre-annealed) at 100°C for 10 minutes, and cured for 8 minutes by using a 200W high-pressure mercury lamp having a wavelength region of 240nm-400nm to form a A film of about 350 nm thickness was then post-cured at 220°C for 1 hour.

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PUM

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Abstract

A light emitting composite includes a light emitting element and a three dimensional protection structure bound to the light emitting element and surrounding the light emitting element. The three dimensional protection structure includes SiO[3 / 2] and a polymerizable functional group. A light emitting structure, an optical sheet, and an electronic device are also disclosed.

Description

[0001] Cross References to Related Applications [0002] This application claims Korean Patent Application No. filed with the Korean Intellectual Property Office on April 12, 2018. Priority and benefit of 10-2018-0042876, the entire contents of which are incorporated herein by reference. technical field [0003] Disclosed are a light-emitting composite, a light-emitting structure, an optical sheet, and an electronic device (device). Background technique [0004] Unlike bulk materials, the physical properties of nanoparticles known as intrinsic properties (eg, energy bandgap, melting point, etc.) can be controlled by varying their particle size. For example, semiconductor nanocrystals (also referred to as quantum dots) are supplied with light energy or electrical energy and can emit light at wavelengths corresponding to the size of the quantum dots. Therefore, quantum dots can be used as light-emitting elements (units) that emit light of a specific wavelength spectrum. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/02C09K11/88G09F9/30
CPCC09K11/025C09K11/883G09F9/30B82Y30/00C09K11/02H01L33/26H01L33/06H01L33/504H01L27/156H01L33/36H01L33/502H01L33/58
Inventor 李恩庆郑知永朴正一
Owner SAMSUNG ELECTRONICS CO LTD