The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 12, 2022

Filed:

Feb. 01, 2016
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Dong Mok Shin, Daejeon, KR;

Sehwan Son, Daejeon, KR;

Hoyong Lee, Daejeon, KR;

Byeong In Ahn, Daejeon, KR;

Du Hyeon Shin, Daejeon, KR;

Nari Kim, Daejeon, KR;

Ji Ho Kim, Daejeon, KR;

Joo Yeon Seo, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/06 (2006.01); C09K 11/02 (2006.01); G02F 1/13357 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
C09K 11/025 (2013.01); C09K 11/06 (2013.01); G02F 1/133621 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1055 (2013.01); G02F 1/133614 (2021.01); G02F 1/133624 (2021.01);
Abstract

The invention described in the present specification relates to a color conversion film 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, wherein the resin matrix includes a thermoplastic resin, and the color conversion film has a light emission peak with a FWHM of 60 nm or less, quantum efficiency of 80% or greater and an absorption coefficient of 30,000 Mcmor greater at a maximum absorption wavelength when irradiating light having a light emission peak at 450 nm, a FWHM of 40 nm or less and monomodal light emission intensity distribution, a method for preparing the same, and a backlight unit including the color conversion film.


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