QUANTUM DOT COMPOSITE BRIGHTNESS ENHANCEMENT FILM AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2020/177787

A3

A quantum dot composite brightness enhancement film and a preparation method therefor, relating to the field of optical thin films; the quantum dot composite brightness enhancement film comprises: a quantum dot film layer consisting of a coated back layer (108), a substrate layer (101), a first barrier layer (102), a quantum dot layer (103), and a second barrier layer (109), arranged in said order; a composite brightness enhancement film layer consisting of a diffusion layer (201), a core layer (202), and a prism layer (203), arranged in said order; and an OCA optical adhesive layer (301) connected to the second barrier layer (109) and the diffusion layer (201). The quantum dot composite brightness enhancement film comprises the described multilayer film structure and, by means of eliminating one substrate layer (101), reduces the total thickness of the quantum dot composite brightness enhancement film; this allows the quantum dot composite brightness enhancement film to be used so as to make backlight modules lighter in weight; at the same time, multiple quantum dot layer (103) coating operations may be avoided, manufacturing process deficiencies may be reduced, and the performance of the quantum dot composite brightness enhancement film may be improved.

LIU YONG (CN)
XIE BIN BIN (CN)

PCT/CN2020/096383

October 22, 2020

June 16, 2020

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NANJING BREADY ELECTRONICS CO LTD (CN)

G02B5/04; G02B5/02; G02F1/13357

CN110673244A	2020-01-10
CN109459888A	2019-03-12
CN107422411A	2017-12-01
CN108803141A	2018-11-13
CN103487857A	2014-01-01
CN108264734A	2018-07-10
KR20160059164A	2016-05-26

BEIJING LAWSING IP FIRM (CN)

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