Color conversion film and back light unit and display apparatus comprising the same

A technology of color conversion and green light, applied in optical components, film/sheet adhesives, optics, etc., can solve problems such as rising interest, and achieve the effect of preventing the deterioration of optical properties

Active Publication Date: 2016-08-17
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cadmium-based quantum dots have safety issues, such as limitations in use, and therefore, there has been increased interest in using cadmium-free quantum dots to manufacture backlights that are relatively safe from safety issues

Method used

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  • Color conversion film and back light unit and display apparatus comprising the same
  • Color conversion film and back light unit and display apparatus comprising the same
  • Color conversion film and back light unit and display apparatus comprising the same

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Embodiment 1

[0089] Based on 100 parts by weight of the composition, it will include 97 parts by weight of poly(ethylene glycol) diacrylate (free radical polymerizable polymer with a molecular weight of 300-400), and 3 parts by weight of a photoinitiator with the following structural formula The composition (100 parts by weight) of (Irgacure 819) is applied on the color conversion layer (based on the resin of 100 parts by weight, the organic fluorescent substance is 0.2 parts by weight) comprising the resin matrix and the organic fluorescent substance of the following structural formula, and the PET film attached thereto, and the resultant was cured by UV radiation.

[0090]

[0091] Using the color conversion film prepared as above, Figure 6 It is shown that the light emitted from the blue LED backlight with the maximum light emission wavelength in the range of 440nm-460nm is irradiated to the entire color conversion film prepared as above using a light guide plate at 60°C, under 60°C...

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Abstract

The invention described in the present specification relates to a color conversion film including a color conversion layer including a resin matrix; and an organic fluorescent substance dispersed in the resin matrix, and absorbing blue or green light and emitting light having a wavelength different from the absorbing light; and an adhesive layer provided on at least one surface of the color conversion layer, and including a curing material of a radical polymerizable compound having a molecular weight of 300 or higher prior to curing, and a back light unit and a display apparatus including the same.

Description

technical field [0001] The present application relates to a color conversion film, and a backlight unit and a display device including the color conversion film. [0002] This application claims priority and benefit from Korean Patent Application No. 10-2015-0018945 filed with the Korean Intellectual Property Office on February 6, 2015, the entire contents of which are incorporated herein by reference. Background technique [0003] As large-screen TVs become more common, TVs also become high-definition, thin, and highly functional. High-performance and high-definition OLED TV still has the problem of price competitiveness, and the real OLED TV market has not yet started. Therefore, there is an ongoing effort to similarly secure the advantages of OLEDs over LCDs. [0004] As part of this effort, many quantum dot-related technologies and prototypes have recently been incorporated. However, cadmium-based quantum dots have safety issues, such as limitations in use, and theref...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J4/02C08K5/55C08L69/00C08L33/02C08L25/12
CPCC09J7/35C09J7/22C08K5/55C09J4/00C09J2203/318C09J2425/006C09J2433/006C09J2469/006C09J2301/41C08F220/286C08F220/281G02F1/1336G02F2202/02G02F2202/28G02B1/14G02F1/133614H10K59/38
Inventor 徐周延朴光承安秉寅申东穆金娜丽金志浩
Owner LG CHEM LTD
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