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Luminous body, light emitting film, light emitting diode and light emitting device having luminous body

A technology of light-emitting diodes and light-emitting bodies, applied in the field of light-emitting bodies, can solve the problems of reducing light efficiency and the like

Active Publication Date: 2019-04-23
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since components corresponding to specific wavelengths pass through each of the red color filter pattern 42 , green color filter pattern 44 and blue color filter pattern 46 , and components corresponding to other wavelengths are absorbed by the red color filter pattern 42 , each of the green color filter pattern 44 and the blue color filter pattern 46 absorbs, so the light efficiency decreases

Method used

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  • Luminous body, light emitting film, light emitting diode and light emitting device having luminous body
  • Luminous body, light emitting film, light emitting diode and light emitting device having luminous body
  • Luminous body, light emitting film, light emitting diode and light emitting device having luminous body

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0219] Synthesis Example 1: Manufacture of Red Emitter

[0220] POSS (MST-300), in which the thiol (-SH) functional group was adjusted to be reduced, was mixed with about 50 mg of quantum dot (QD) powder, in which oleylamine, trioctylphosphine, dodecylmercaptan, and oleic acid The initial ligands are bound to the surface of the heterostructured red phosphor particles of indium phosphide / zinc selenide / zinc sulfide (InP / ZnSe / ZnS). After stirring the sample at about 30°C for about 2 hours, the mixture was sonicated for about 30 minutes. In nitrogen (N 2 ) under ambient or vacuum state at about 300° C. for about 5 minutes and then cooling the sample to room temperature.

Synthetic example 2

[0221] Synthesis Example 2: Manufacture of Red Emitter

[0222] The process for Synthesis Example 1 was repeated except that heat treatment at about 350° C. was performed after the ultrasonic treatment.

experiment example 1

[0223] Experimental Example 1: Evaluation of Dispersion Ability

[0224] The red emitters synthesized by Synthesis Examples 1 and 2 were mixed into toluene as a non-polar solvent and PGMEA as a polar solvent, and the dispersibility was evaluated. Figure 11A to Figure 11C is a photograph showing the evaluation results of the dispersibility of the luminescent body with respect to a non-polar solvent and a polar solvent according to the first embodiment of the present disclosure. In the emitter, the silsesquioxane moiety of the polyhedral oligomeric silsesquioxane (POSS) structure passes through the sulfide ligand of the polar ligand and the alkylene group of the non-polar ligand on the surface of the red quantum dot. The ligand (primary ligand) is attached. exist Figure 11A to Figure 11C Among them, the left one shows the evaluation results of the red light emitter of Synthesis Example 1, and the right one shows the evaluation results of the red light emitter of Synthesis ...

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PUM

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Abstract

A luminous body, and a light emitting film, a light emitting diode and a light emitting device having the luminous body are disclosed. The luminous body includes: a first moiety including a pluralityof first ligands combined to a surface of an inorganic emitting particle; and a second moiety including silsesquioxanes connected to a second ligand connected to the first ligand, wherein one of the first and second ligands is a polar ligand, and the other of the first and second ligands is a non-polar ligand.

Description

[0001] Cross References to Related Applications [0002] This application claims the priority benefit of Korean Patent Application No. 10-2017-0134500 filed in Korea on October 17, 2017 and Korean Patent Application No. 10-2018-0117488 filed in Korea on October 2, 2018, which Incorporated by reference in its entirety for all purposes as if fully set forth herein. technical field [0003] The present invention relates to a luminous body, and more particularly, to a luminous body having improved dispersibility to various solvents and luminous performance, and a luminous film, a light emitting diode, and a display device including the luminous body. Background technique [0004] Various flat panel displays (FPDs) that replace conventional cathode ray tubes (CRTs) have been studied with the advancement of information communication technology and electronic engineering technology. In particular, a liquid crystal display (LCD) device or an organic light emitting diode (OLED) disp...

Claims

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Application Information

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IPC IPC(8): H01L33/50H01L51/52G02F1/13357
CPCG02F1/133603H01L33/504H01L33/505C09K11/62C09K11/70C09K11/883H01L25/0753H01L33/502H05B33/14G02B5/201G02F1/133614H10K59/38H10K50/115G02F2202/107H01L33/28H01L33/30H01L33/346H01L27/156G02F2202/104G02F2202/106G02B5/207G02B5/22G02B5/206H10K50/81H10K50/82H10K50/84H10K50/125H10K2102/00H10K2102/3026H10K2102/3035
Inventor 金东荣金柄杰闵慧理禹宗勋邢民硕
Owner LG DISPLAY CO LTD