公开(公告)号：US20230146027A1

公开(公告)日：2023-05-11

申请号：US17049052

申请日：2020-09-21

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

Inventor： Zihang SONG

IPC: G02F1/1335 ,  G02F1/13357 ,  H10K50/115 ,  C09K11/08 ,  C09K11/77 ,  C08J5/18

CPC classification number: G02F1/133614 ,  G02F1/133606 ,  H10K50/115 ,  C09K11/0811 ,  C09K11/77066 ,  C09K11/77067 ,  C09K11/77062 ,  C09K11/08 ,  C08J5/18 ,  C08J2383/04 ,  C08J2363/00 ,  C08J2333/26 ,  C08J2333/08

Abstract: A quantum dot film, a method of preparing the same, and a display device are disclosed. The quantum dot film includes a quantum dot layer and a plurality of protection layers. The quantum dot layer includes a plurality of red quantum dots, green quantum dots and scattering particles, which are uniformly dispersed in a high molecular polymer substrate. Material of the plurality of scattering particles is high refractive index material with a particle size ranging from 200 nm to 1 μm. By the plurality of scattering particles with a high refractive index disposed in the quantum dot layer, the self-absorption phenomenon between a plurality of quantum dots is reduced, and a light extraction rate is improved.

公开(公告)号：US20230359084A1

公开(公告)日：2023-11-09

申请号：US17413276

申请日：2020-12-30

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Zihang SONG

IPC: G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133614 ,  G02F1/133603 ,  G02F1/133611 ,  G02F1/133605 ,  G02F1/133606

Abstract: A backlight module, a display panel, and a display device are disclosed. The backlight module includes a light-emitting diode (LED) light source and a quantum-dot-brightness enhancement film disposed on one side of the LED light source, wherein the quantum-dot-brightness enhancement film contains a resin system of blue phosphor and red-and-green quantum dots.

公开(公告)号：US20230161094A1

公开(公告)日：2023-05-25

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

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

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.

公开(公告)号：US20210286123A1

公开(公告)日：2021-09-16

申请号：US16625821

申请日：2019-12-17

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

Inventor： Zihang SONG

IPC: F21V8/00

Abstract: A backlight module and a display device are provided. The backlight module includes: a backlight structure, a polarizer disposed opposite the backlight structure, and an optical film disposed on a surface of one side of the polarizer near the backlight structure.