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Polymer film, flexible light emitting element display device, and rollable display device

a flexible light emitting element and display device technology, applied in the direction of organic semiconductor devices, coatings, chemistry apparatuses and processes, etc., can solve the problems of plastic substrate being easily damaged and vulnerable to scratches, and achieve excellent scratch resistance, chemical resistance, abrasion resistance, and high elongation or elasticity.

Active Publication Date: 2016-04-19
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0091]According to the present invention, the polymer film capable of having high elongation or elasticity together with mechanical properties such as excellent scratch resistance, chemical resistance, abrasion resistance, and the like, to thereby be applied to a flexible display, a rollable display device, or the like, the flexible light emitting element display device and rollable display device using the polymer film, may be provided.
[0092]Since the polymer film may have sufficient physical properties to replace tempered glass or the like, the flexible display or rollable display device that may not be broken by pressure or force applied from the outside but may be sufficiently warped and folded may be provided.

Problems solved by technology

In order to decrease weight of a product, a plastic substrate is used in the flexible displays, but a bending degree is not sufficient or the plastic substrate is vulnerable to scratches, and in the case in which the bending degree is increased, the plastic substrate may be broken.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

synthesis examples 1 to 3

Synthesis of Polyrotaxane

synthesis example 1

[0097]After 5 g of a caprolactone-grafted polyrotaxane polymer [A1000, Advanced Soft Material Inc.] was put into a 100 ml flask, 0.453 g of 2-isocyanatoethyl acrylate [AOI-VM, Showadenko K.K.], 2 mg of dibutyltin dilaurate [DBTDL, Merck & Co, Inc.], 11 mg of hydroquinone monomethylene ether, and 31.5 g of methylethylketone were added thereto and reacted at 70° C. for 5 hours, thereby obtaining a polyrotaxane polymer liquid including cyclodextrin to which a polylactone-based compound having an acrylate-based compound introduced at the end is bonded as a macrocycle (solid content: 14.79%).

[0098]The polyrotaxane polymer liquid as described above was dripped into an n-hexane solvent to precipitate a polymer, followed by filtration, thereby obtaining a white solid polymer (weight average molecular weight: about 500,000). 1H NMR data of the finally obtained polyrotaxane polymer liquid are shown in FIG. 1.

[0099]1H NMR data of the polyrotaxane polymer [A1000] that was used in Synthesis Exam...

synthesis example 2

[0101]After 5 g of a caprolactone-grafted polyrotaxane polymer [A1000, Advanced Soft Material Inc.] was put into a 100 ml flask, 0.906 g of 2-isocyanatoethyl acetate [AOI-VM, Showadenko K.K.], 2 mg of dibutyltin dilaurate [DBTDL, Merck & Co, Inc.], 12 mg of hydroquinone monomethylene ether, and 33 g of methylethylketone were added thereto and reacted at 70° C. for 5 hours, thereby obtaining a polyrotaxane polymer liquid including cyclodextrin to which a polylactone-based compound having an acrylate-based compound introduced at the end is bonded as a macrocycle (solid content: 15.21%).

[0102]The polyrotaxane polymer liquid as described above was dripped into an n-hexane solvent to precipitate a polymer, followed by filtration, thereby obtaining a white solid polymer (weight average molecular weight: about 500,000). 1H NMR data of the polyrotaxane polymer [A1000] that was used in Synthesis Example 2 as a reactant are shown in FIG. 1, and a structure of the caprolactone bonded to the ma...

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Abstract

The present invention relates to a polymer film containing a binder resin and polyrotaxane having a specific structure, and a flexible light emitting element display device and a rollable display device including the coating film.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a 35 U.S.C. §371 National Phase Entry Application from PCT / KR2014 / 004164, filed on May 9, 2014, and designating the United States, which claims priority under 35 U.S.C. §119 to Korean Patent Application No. 10-2013-0052701 filed on May 9, 2013 and to Korean Patent Application No. 10-2014-0054991 filed on May 8, 2014, which are incorporated herein by reference in their entireties.FIELD OF THE INVENTION[0002]The present invention relates to a polymer film, a flexible light emitting element display device, and a rollable display device, and more particularly, to a polymer film capable of having high elongation or elasticity together with mechanical properties such as excellent scratch resistance, chemical resistance, abrasion resistance, and the like, to thereby be applied to a flexible display device, a rollable display device, or the like, and a flexible light emitting element display device and a rollable display devic...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): C09K19/00H01L27/32H01L51/52H01L51/00C08J7/04
CPCH01L27/3244C08J7/047H01L51/0097H01L51/5253C08J2303/02C08J2333/08C08J2333/14C08J2363/00C08J2367/02C08J2367/04C08J2375/04C08J2400/21H01L2251/5338Y10T428/10Y10T428/1086
Inventor KIM, HEONCHANG, YEONG RAEKIM, HYE MINKIM, YOUNG SUKJUNG, SOON-HWA
Owner LG CHEM LTD
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