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:
Feb. 27, 2024

Filed:

Jul. 15, 2021
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Hirofumi Toyama, Kanagawa, JP;

Tatsuya Oba, Kanagawa, JP;

Takashi Yonemoto, Kanagawa, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/00 (2006.01); B82Y 20/00 (2011.01); G02B 5/20 (2006.01); G02B 5/02 (2006.01); G02F 1/1335 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02B 5/003 (2013.01); B82Y 20/00 (2013.01); G02B 5/20 (2013.01); G02B 5/0242 (2013.01); G02F 1/133603 (2013.01); G02F 1/133606 (2013.01); G02F 1/133611 (2013.01); G02F 1/133614 (2021.01);
Abstract

Provided are a light absorbing material-containing film which contains quantum dots or the like and is capable of suppressing in-plane luminance unevenness and chromaticity unevenness; and a backlight unit. The light absorbing material-containing film includes a light absorbing material-containing layer that has a plurality of cylindrical or polygonal prism-shaped resin portions discretely disposed and a light absorption region contain light absorbing bodies and formed between the plurality of resin portions; a first substrate film that is laminated on one main surface of the light absorbing material-containing layer; and a second substrate film laminated on the other main surface of the light absorbing material-containing layer, where the light absorption region contains at least one phosphor that serves as the light absorbing body, and a binder.


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