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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.

Patent No.:

US 11460614 B1

PDFFull Text
Date of Patent:
Oct. 04, 2022

Filed:

Jun. 16, 2020

Quantum dot composite brightness enhancement film and method for manufacturing same

Applicant:

Nanjing Bready Electronics Co., Ltd., Nanjing, CN;

Inventors:

Yong Liu, Nanjing, CN;

Binbin Xie, Nanjing, CN;

Assignee:

NANJING BREADY ELECTRONICS CO., LTD., Nanjing, CN;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Donald L Raleigh

Int. Cl.
CPC ...
G02B 5/02 (2006.01); B32B 7/023 (2019.01); G02F 1/1335 (2006.01); B32B 7/12 (2006.01); B32B 27/20 (2006.01); C09K 11/02 (2006.01); C09K 11/56 (2006.01); C09K 11/88 (2006.01); G02B 5/04 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
G02B 5/0294 (2013.01); B32B 7/023 (2019.01); B32B 7/12 (2013.01); B32B 27/20 (2013.01); C09K 11/025 (2013.01); C09K 11/565 (2013.01); C09K 11/883 (2013.01); G02B 5/0242 (2013.01); G02B 5/0278 (2013.01); G02B 5/045 (2013.01); G02F 1/133614 (2021.01); B32B 2260/025 (2013.01); B32B 2260/046 (2013.01); B32B 2264/10 (2013.01); B32B 2457/20 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01);
Abstract

The present invention provides a quantum dot composite brightness enhancement film and a method for manufacturing same, relating to the field of optical thin films. The quantum dot composite brightness enhancement film includes a quantum dot film layer formed by a back coating layer, a substrate layer, a first barrier layer, a quantum dot layer, and a second barrier layer which are sequentially attached, a composite brightness enhancement film layer formed by a diffusion layer, a core layer, and a prism layer which are sequentially attached, and an Optically Clear Adhesive (OCA) layer connecting the second barrier layer and the diffusion layer. The quantum dot composite brightness enhancement film of the present invention is configured to be of the multi-layer film structure; the total thickness of the quantum dot composite brightness enhancement film is reduced by omitting one substrate layer, thereby facilitating light-weighting when the quantum dot composite brightness enhancement film is applied to a backlight module; moreover, multiple coating operations on the quantum dot layer are avoided, thereby reducing process defects, and effectively improving the performance of the quantum dot composite brightness enhancement film.

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