Patent · US Active

Liquid crystal display device and quantum dot LED

US10797205B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

Hisense Visual Technology Co., Ltd. · CN

Inventors

Fulin Li · Shandong, CN
Zhicheng Song · Qingdao, CN

Key dates

Filing date	Dec 26, 2019
Grant date	Oct 6, 2020
Priority date	—
Expiry date	Dec 26, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02F2202/36
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Liquid crystal display device and quantum dot LED are provided. The fluorescent layer is arranged at the light-emitting side of the LED chip so that the light of first wavelength generated by the LED chip excites the fluorescent layer to generate the light of second wavelength, the light of first wavelength excites the first quantum dot material of the quantum dot layer to generate the light of third wavelength, the light of first wavelength and the light of second wavelength excite the second quantum dot material to generate the light of fourth wavelength, the third wavelength is shorter than the second wavelength, and the light of third wavelength and the light of second wavelength have the same color.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.