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Pyrromethene-boron complex, color conversion composition, color conversion film, light source unit, display, and lighting device

A technology of pyrromethene boron and color conversion, applied in lighting devices, components of lighting devices, light sources, etc., can solve the problems of insufficient durability, narrow half-value width of luminescent spectrum, and quantum dots not being resistant to hot water points, oxygen, etc.

Pending Publication Date: 2021-12-21
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology using this quantum dot can indeed narrow the half-value width of the green and red emission spectra and improve color reproducibility, but on the other hand, quantum dots are not resistant to heat, moisture in the air, and oxygen, and their durability is not good. full

Method used

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  • Pyrromethene-boron complex, color conversion composition, color conversion film, light source unit, display, and lighting device
  • Pyrromethene-boron complex, color conversion composition, color conversion film, light source unit, display, and lighting device
  • Pyrromethene-boron complex, color conversion composition, color conversion film, light source unit, display, and lighting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0224] Hereinafter, exemplified embodiments of the present invention will be described with examples, but embodiments of the present invention is not limited to the following embodiments. Examples and Comparative Examples below, Compound G-1 ~ G-36, G-101 ~ G-106 compound is shown below.

[0225] Chemical formula 14]

[0226]

[0227] [Chemical Formula 15]

[0228]

[0229] [Chemical Formula 16]

[0230]

[0231] [Chemical Formula 17]

[0232]

[0233] [Chemical Formula 18]

[0234]

[0235] [Chemical Formula 19]

[0236]

[0237] Chemicals 20]

[0238]

[0239] Chemical 21]

[0240]

[0241] [Chemical 22]

[0242]

[0243] [Chemical Technology 23]

[0244]

[0245] Further, the embodiment and Comparative Examples structural analysis and evaluation methods relating to Example described below.

[0246] In 1 H-NMR measurement>

[0247] Compound 1 H-NMR using superconductive FTNMR EX-270 (manufactured by Nippon Denshi) was measured in deuterated chloroform solution...

Synthetic example 1

[0253] Hereinafter, the method for synthesizing Compound in Synthesis Example 1 of the present invention is G-23 will be described. Synthesis of compound G-23, the 3,5-bromobenzaldehyde (3.0g), 4- methoxycarbonyl-phenylboronic acid (5.3 g of), tetrakis (triphenylphosphine) palladium (0) (0.4 G), and potassium carbonate (2.0g) added to the flask was replaced with nitrogen. Water was added degassed toluene (30mL) and degassed (10mL), refluxed for 4 hours. Then, the reaction solution was cooled to room temperature, the organic layer was washed with saturated brine and liquid separation. The organic layer was dried over magnesium sulfate, filtered, and the solvent was distilled off. The reaction product was obtained by silica gel column chromatography to give 3,5-bis (4-methoxycarbonyl phenyl) benzaldehyde (3.5g) as a white solid.

[0254] Next, 3,5-bis (4-methoxycarbonyl-phenyl) benzaldehyde (1.5g) and 2,4-dimethyl-2,4,6-tris (3,5-bis (trifluoromethyl ) phenyl) phenyl pyrrole (7.16 g...

Embodiment 1

[0259] Example embodiments of the present invention when 1 is dipyrromethene boron complex to the above-described embodiment is used as a light emitting material (color conversion material). Example 1 In this embodiment, an acrylic resin as a binder resin, relative to 100 parts by weight of the acrylic resin, 0.25 parts by weight of mixed G-1, 400 parts by weight of the compound as a luminescent material toluene as a solvent. Thereafter, a planetary stirring and degassing apparatus "MAZERUSTARKK-400" (Kurabo Co., Ltd.), the mixture thereof 300rpm stirring and defoaming for 20 minutes to obtain a color conversion composition.

[0260] Similarly, using a polyester resin as a binder resin, relative to 100 parts by weight of the polyester resin, a mixed solvent of toluene as 300 parts by weight. Thereafter, a planetary stirring and degassing apparatus "MAZERUSTARKK-400" (Kurabo Co., Ltd.), and the solution was stirred and defoamed to 300rpm for 20 minutes to obtain an adhesive composi...

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Abstract

A pyrromethene-boron complex according to an embodiment of the present invention is a compound represented by the following formula (1) and having a molecular weight of at least 1,000, wherein at least two of the R1 to R6 in the formula (1) are groups given by the following formula (2). Formula (1) (In the formula (1), X is C-R7 or N. R1 to R9, excluding those that are groups represented by the following formula (2), may be the same as or different from each other and are selected from a candidate group consisting of an alkyl group and so forth). Formula (2) (In the formula (2), L1 is selected from a candidate group consisting of an oxygen atom and so forth. L2 is an alkylene group and so forth. When L2 is an alkylene group, a carbon atom in the alkylene group that is bonded to L1 is a secondary carbon or tertiary carbon. R101 is a cyano group and so forth. n is an integer from 0-5, and m is an integer from 1-5. Each of the m-number of -(L2-(R101)n contains at least three cyclic structures).

Description

Technical field [0001] The present invention relates to a dipyrromethene boron complexes, compositions color conversion, a color conversion film, the light source unit, a display and a lighting device. Background technique [0002] Research on the multi-color mode color conversion technique is applied to a liquid crystal display, organic EL displays, illumination devices and the like have been widely carried out. The so-called color conversion is a conversion light emitted from the light emitting member is a longer wavelength, for example, convert a blue light emitting green light, red light emission. By having this composition color conversion function (hereinafter referred to as "color conversion composition") film, and for example, in combination with a blue light source, it is possible to remove the blue, green, and blue light from the three primary colors of red, i.e., white light can be taken out. By the combination of the blue light source and a film having a color convers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/02C09K11/06F21V9/45G02F1/1335H01L33/50H10K99/00
CPCC07F5/02C09K11/06H01L33/502G02F1/133514F21V9/45C09K2211/1007C09K2211/1055C09K2211/1011H10K85/322C07F7/0814C07F5/022H10K85/657H10K50/11G02B5/20G09F9/30C07F5/027H05B33/14H10K50/00
Inventor 小林和纪田中大作市桥泰宜
Owner TORAY IND INC