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Base film, and laminated structure and display device comprising same

A technology of base film and conductive film, applied in identification devices, conductive layers and coatings on insulating carriers, etc., can solve the problems of low glass transition temperature, unsuitable for display field, polymer film modification, etc.

Inactive Publication Date: 2015-08-19
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, polymer films (such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), etc.) used as base films in the prior art Shows a low glass transition temperature below 120°C so that a problem of polymer film modification may occur in forming a transparent metal oxide-based conductive film
In addition, the polyimide (PI) film, which has been extensively studied in recent years due to its excellent heat resistance, has an excellent glass transition temperature above 400°C, but this film is opaque and has an orange color, which is not suitable for used in the display field
[0010] In addition, the polymer film (such as polyethylene terephthalate (PET) etc.) can be used as an external base film due to its high retardation; however, there is a limitation in that it cannot be used as an internal base film

Method used

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  • Base film, and laminated structure and display device comprising same
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  • Base film, and laminated structure and display device comprising same

Examples

Experimental program
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Embodiment and

[0083]

Embodiment 1

[0085] (1) Preparation of cycloolefin-based polymers

[0086] At room temperature, 5-norbornene-2-carboxylic acid butyl ester (100 g) with 71 mol% external isomer and 5-norbornene-2-carboxylic acid methyl ester with 71 mol% external isomer The ester (900 g) was placed in a reactor and toluene (3000 g) was added thereto. 1-Octyne (10.8 g) was further added thereto, and then the inside of the reactor was replaced with nitrogen, and the temperature of the reactor was raised to 105°C. Then, catalyst palladium acetate trimer (0.288 g) and tricyclohexylphosphonium tetrakis(pentafluorophenyl)borate (2.46 g) dissolved in methylene chloride were put into the reactor, followed by stirring for 18 hours to react. After 18 hours, a white polymer precipitate was obtained from the reaction using acetone and ethanol. The precipitate was filtered with a filter to obtain a polymer, which was dried in a vacuum oven at 60° C. for 24 hours to prepare butyl 5-norbornene-2-carboxylate and 5-norbo...

Embodiment 2

[0091] Except using butyl 5-norbornene-2-carboxylate (300 g) with 71 mol% exo isomer and methyl 5-norbornene-2-carboxylate (700 g ), and the use of 1-octyne (10.3g), palladium acetate trimer (0.275g) and tricyclohexylphosphonium tetrakis (pentafluorophenyl) borate (2.36g), by and Example 1 A copolymer of butyl 5-norbornene-2-carboxylate and methyl 5-norbornene-2-carboxylate was prepared in the same manner, and a base film including the copolymer was produced.

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Abstract

The present invention relates to a a base film, a laminated structure comprising the same, and a display device. More specifically, a transparent base film including a polymer having a cyclic olefin-based repeating unit including an exo isomer in a predetermined content or more to show a high glass transition temperature, such that thermal resistance may be excellent, and light transmittance may be high, and a laminated structure comprising the same, and a display device.

Description

technical field [0001] The present invention relates to a base film, a laminated structure including the base film, and a display device, and more particularly, to a transparent base film exhibiting a high glass transition temperature to have excellent heat resistance and high light transmittance, and A laminated structure and a display device including the base film. [0002] This application claims Korean Patent Application No. 10-2013-0116653 filed with the Korean Intellectual Property Office on September 30, 2013 and Korean Patent Application No. 10-2014-0129370 filed with the Korean Intellectual Property Office on September 26, 2014 The entire content of the above application is hereby incorporated by reference into this application. Background technique [0003] In general, a touch panel is a device that is installed on the surface of a display device and converts physical contact (such as a user's finger, touch pen, etc.) into an output electrical signal, which has b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041C08J7/044
CPCG06F3/041C08J7/06C08J2345/00G06F2203/04103C08J7/044B32B27/00C08J5/18G09F9/00H01B5/14C08G2261/3324C08F232/08
Inventor 文程昱金正祐全成浩崔大胜
Owner LG CHEM LTD