Tianjin Zhonghuan Quantum Tech Co., Ltd.

Tianjin Zhonghuan Electronic Lighting Technology Co., Ltd.

Chunfeng Li

Kai Wang

Xin Li

Lei Yang

Junjie Hao

Xiaowei Sun

Xiumei Tang

Dun Bian

Jianming Hong

Dong Li

Rui Lu

A reflective and heat-insulating QLED package device and a method for packaging the same as well as a luminaire are provided. The reflective and heat-insulating QLED package device includes a substrate, a first LED chip for emitting blue light, a second LED chip for emitting green light, an adhesive layer for quantum dots, a reflecting layer for changing the path of light rays, and a heat-insulating layer. The first LED chip and the second LED chip are arranged on the substrate in a tiled manner. The heat-insulating layer is arranged on the light output surface of the first LED chip and the second LED chip, a reflecting layer covers the heat-insulating layer, and a reflecting substance or a refractive substance is uniformly distributed in the reflecting layer. The adhesive layer for quantum dots covers the reflecting layer and is covered by a moisture and oxygen blocking adhesive layer.

Reflective and heat-insulating QLED package device and method for packaging the same as well as luminaire

The invention discloses a quantum dot composite fluorescent particle including quantum dots, a mesoporous material, and a water-blocking and oxygen-blocking material. The quantum dots are distributed in the mesoporous material, and the water-blocking and oxygen-blocking material is filled in the gaps between the quantum dots and the mesoporous material. The quantum dot composite fluorescent particles may also include metal nanoparticles distributed within the mesoporous material and/or a blocking layer coating the outer surface of the mesoporous material. These features greatly improve the water and oxygen blocking properties and thus, the stability of the quantum dot composite fluorescent particles. The metal nanoparticles help the quantum dots capture more blue lights due to the localized surface resonance plasma and consequently improve the utilization ratio of the blue lights. The quantum dot composite fluorescent particle can then be integrated into an LED module to improve its service life.

Quantum dot composite fluorescent particle and LED module

Growing community of inventors

Tianjin, China

Chunfeng Li