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Composition for encapsulating organic light emitting element and organic light emitting element display device manufactured therefrom

A technology of an organic light-emitting device and a composition, which is applied in the field of organic light-emitting displays, can solve the problems of light-emitting characteristics and reliability degradation of organic light-emitting devices, and achieve the effect of improving reliability and high light transmittance

Active Publication Date: 2018-06-08
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, organic light-emitting devices may suffer from deterioration in light-emitting characteristics and reliability

Method used

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  • Composition for encapsulating organic light emitting element and organic light emitting element display device manufactured therefrom
  • Composition for encapsulating organic light emitting element and organic light emitting element display device manufactured therefrom
  • Composition for encapsulating organic light emitting element and organic light emitting element display device manufactured therefrom

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0162] In a 1,000ml flask equipped with a cooling tube and a stirrer, place 300ml of ethyl acetate, 21g of 3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane and 43g of allyl alcohol ( Daejung Chemicals & Materials Co., Ltd.), followed by purging with nitrogen for 30 minutes. Subsequently, 72 ppm of Pt-carbon black powder (Aldrich GmbH) was added thereto, then the flask was heated to 80° C. and the components were stirred for 4 hours. The remaining solvent was removed by distillation, whereby a compound was obtained. 71.5 g of the obtained compound and 39 g of triethylamine were sequentially added to 300 ml of methylene chloride, followed by slowly adding 30.2 g of methacryloyl chloride while stirring the mixture at 0°C. The remaining solvent was removed by distillation, thereby obtaining a monomer represented by Formula 4 and having a purity of 95% as determined by HPLC (molecular weight: 584.92 g / mol). (1H NMR: δ7.52, m, 6H; δ7.42, m, 4H; δ6.25, d, 2H; δ6.02, dd, 2H; δ5.82, t, 1H...

preparation example 2

[0166] A monomer represented by Formula 9 was obtained in the same manner as in Preparation Example 1, except that 25 g of 3-phenyl-1,1,3,5,5-pentamethyltrisiloxane (Gelest Inc.) was used Instead of 21 g of 3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane.

[0167]

[0168]

preparation example 3

[0170] In a 1,000 ml flask equipped with cooling tube and stirrer, place 300 ml of ethyl acetate, 25 g of 3-phenyl-1,1,1,3,5,5-hexamethyltrisiloxane (Gelest Inc.) and 47 g of allyl alcohol, followed by nitrogen sparging for 30 minutes. Subsequently, 72 ppm of Pt-carbon black powder (Aldrich GmbH) was added thereto, then the flask was heated to 80° C. and the components were stirred for 4 hours. The remaining solvent was removed by distillation, whereby a compound was obtained. 65.5 g of the obtained compound and 48 g of triethylamine were sequentially added to 300 ml of dichloromethane, followed by slowly adding 31.3 g of methacryloyl chloride while stirring the mixture at 0°C. The remaining solvent was removed by distillation, whereby the monomer represented by Formula 13 was obtained, and had a purity of 97% as determined by HPLC (molecular weight: 410.73 g / mol). (1H NMR: δ7.61, m, 3H: δ7.12, m, 2H: δ6.25, d, 1H: δ6.02, dd, 1H: δ3.87, m, 2H: δ2.82, s, 3H: δ1.54, m, 2H: δ0...

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Abstract

Provided are a composition for encapsulating an organic light emitting element and an organic light emitting element display device manufactured therefrom, the composition comprising: (A) a non-silicone-based photocurable multifunctional monomer; (B) a silicone-based photocurable multifunctional monomer; (C) a non-silicone-based photocurable monofunctional monomer; (D) a silicone-based photocurable monofunctional monomer; and (E) an initiator, wherein the silicone-based photocurable multifunctional monomer (B) is represented by chemical formula 1.

Description

technical field [0001] The invention relates to a composition for encapsulating an organic light-emitting device and an organic light-emitting display manufactured by using the composition. Background technique [0002] Organic light emitting displays include organic light emitting devices. Such an organic light emitting device suffers from degradation of light emitting characteristics when in contact with external moisture and / or oxygen. Therefore, organic light emitting devices must be encapsulated with an encapsulating composition. Organic light emitting devices are encapsulated in a multilayer structure including inorganic barrier layers and organic barrier layers. The inorganic barrier layer is formed by plasma deposition, which may cause the organic barrier layer to be etched by the plasma. When the organic barrier layer is etched, the encapsulation function of the organic barrier layer may be destroyed. As a result, organic light emitting devices may suffer from d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F230/08C08F2/50H01L51/52C08G77/04
CPCC08F2/50C08F230/08C08G77/20C08F220/301H10K50/844Y02E10/549C08F222/102H10K99/00C07F7/1804C08F22/12H01L33/00
Inventor 南成龙崔美贞高盛慜
Owner SAMSUNG SDI CO LTD
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