公开(公告)号：US12025825B2

公开(公告)日：2024-07-02

申请号：US17051448

申请日：2020-07-27

Applicant: TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Miao Zhou ,  Zihang Song ,  Xue Bai ,  Ji Li ,  Xin Zhang

IPC: C09K11/02 ,  C09K11/70 ,  C09K11/88 ,  F21V8/00 ,  G02B5/20 ,  B82Y20/00

CPC classification number: G02B6/0056 ,  C09K11/02 ,  C09K11/70 ,  C09K11/883 ,  G02B5/206 ,  G02B6/0051 ,  G02B6/0073 ,  B82Y20/00 ,  G02B2207/101

Abstract: The invention provides a light-emitting composite film layer, a backlight module, and a display device. The light-emitting composite film layer includes a quantum dot film layer and a diffusion film layer. The diffusion film layer is disposed on at least one surface of the quantum dot film layer. Quantum dots and light diffusion particles are dispersed in the quantum dot film layer. The quantum dots include green light and red light quantum dots, and light diffusion particles are dispersed in the diffusion film layer. The invention makes blue light divergent, makes the blue light reach same brightness viewing angles as red light and green light, and reduces or even eliminates color cast.