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Adhesive composition and display device including the same

A technology for display devices and adhesive layers, applied in the directions of polymer adhesive additives, adhesive types, adhesive additives, etc., can solve the problem of reduced residual solvent content, shortened adhesion retention time, surface adhesion problems such as disappearance, to achieve the effect of improving adhesion retention, improving transfer rate and product yield, and simplifying manufacturing processes

Pending Publication Date: 2022-06-21
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the planarization layer hardens, the residual solvent content is reduced so that the surface adhesion is lost, which causes the film to tear
In addition, the adhesion retention time is shortened, resulting in lower product yields

Method used

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  • Adhesive composition and display device including the same
  • Adhesive composition and display device including the same
  • Adhesive composition and display device including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Adhesive compositions comprising particles of a plurality of multi-shell structures, an adhesive, a photosensitive material, and a solvent according to embodiments of the present disclosure are prepared. The central part of the multi-shell structured particle is formed of rosin and butylated hydroxyanisole (BHA) as an antioxidant, the first outer part is formed of SBA-15, and the second outer part is made of C60 rich with a diameter of about 0.9 nm. Lennene formation. 20 parts by weight of 1,4-butanediol dimethacrylate as an adhesive, 1 part by weight of 4,4'-bis(dimethylamino)benzophenone as a photosensitive material, and 64 parts by weight Propylene glycol monomethyl ether acetate (PGMEA) as a solvent was mixed in 5 parts by weight of particles with a multi-shell structure for about 24 hours to prepare a liquid adhesive.

Embodiment approach

[0128] According to one aspect of the present disclosure, a display device is provided.

[0129] In some embodiments, the display device includes a substrate including a plurality of pixels. The display device includes an adhesive layer disposed on the substrate. The display device further includes a light emitting diode disposed on the adhesive layer. The display device further includes a planarization layer disposed to surround the light emitting diode. The display device further includes a connection electrode disposed on the planarization layer. The display device further includes a transparent protective layer disposed on the connection electrodes. At least one layer selected from the group consisting of the adhesive layer, the planarization layer, and the transparent protective layer includes a plurality of particles of a multi-shell structure. The multi-shell structured particle includes: a central portion including a tackifier material; a first outer portion includ...

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Abstract

A display device is provided. The display device includes a substrate including a plurality of pixels, an adhesive layer on the substrate, a light emitting diode on the adhesive layer, a planarization layer surrounding the light emitting diode, a connection electrode on the planarization layer; and a transparent protective layer on the connection electrode. At least one of the adhesive layer, the planarization layer, and the transparent protective layer includes a plurality of particles of a multi-shell structure. The particles of the multi-shell structure are included in the display device such that adhesion and adhesion retention between the light emitting diode and the driving panel are improved to increase product yield and improve brightness of the light emitting diode, thereby providing a display device having low power consumption.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority to Korean Patent Application No. 10-2020-0179895 filed in the Korean Intellectual Property Office on December 21, 2020, the entire disclosure of which is incorporated herein by reference. technical field [0003] The present disclosure relates to an adhesive composition and a display device including the adhesive composition, and more particularly, to a light emitting diode (LED, LED) having improved yield and improved light extraction efficiency using light emitting diodes (LEDs) LightEmitting Diode) display device. Background technique [0004] With the entry into the information age, the display field of visualization of electrical information signals has rapidly developed, and for this reason, various display devices having excellent properties such as thin thickness, light weight, and low power consumption have been developed. Specific examples of such display devices include Liqui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/027G03F7/004H01L25/075
CPCG03F7/027G03F7/004H01L25/0753H01L33/56C09J11/08C09J135/02C08F222/102C08K9/02C08K3/36C08K3/045C08K5/13C08K5/132C08L93/04H01L33/02H01L27/1214H01L25/167H10K50/8426H10K71/00
Inventor 金炳厚李垈兴金周赫申英燮孙雅蓝金成真
Owner LG DISPLAY CO LTD