Patent · US Active

Quantum dot-enhanced display having dichroic filter

US9810942B2 · kind B2 · utility

5Cited by

34References

18Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Chenhua You · San Jose, US
Jun Qi · Cupertino, US
Fan-Chung Hsu · Los Altos, US
Victor H. Yin · Cupertino, US

Key dates

Filing date	Nov 17, 2015
Grant date	Nov 7, 2017
Priority date	—
Expiry date	Dec 28, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02F2202/108
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A display device is provided. The display device includes a light source emitting a blue light and a light emitting layer including a first group of red quantum dots and a second group of green quantum dots. The light emitting layer is configured to absorb a first portion of the blue light from the light source to emit red light and green light and to transmit a second portion of the blue light. The display device also includes dichroic filter layers to improve light recycling and backlight efficiency.

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