Patent · US Active

Micro display panels with integrated micro-reflectors

US10304375B2 · kind B2 · utility

2Cited by

6References

20Claims

0Family size

Assignee

HONG KONG BEIDA JADE BIRD DISPLAY LIMITED · CN

Inventors

Yijing Chen · Singapore, SG
Fang Ou · Monterey Park, US
Wing Cheung Chong · Tseung Kwan O, CN
Lei Zhang · Shanghai, CN
Qiming Li · Beijing, CN

Key dates

Filing date	Sep 21, 2017
Grant date	May 28, 2019
Priority date	—
Expiry date	Sep 21, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/856
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A display panel with integrated micro-reflectors. The display panel also includes an array of pixel light sources (e.g., micro-LEDs) electrically coupled to corresponding pixel driver circuits (e.g., FETs). The micro-LEDs produce light and the micro-reflectors reduce the divergence of the light produced by the micro-LEDs. Different designs are possible. The micro-reflectors can have different shapes, include the shape of their sidewalls and the shape of their plan cross-section. The array schemes can also vary, including the number of LEDs per micro-reflector. Different fabrication approaches are also possible. In one approach, a support structure is integrated between micro-LEDs. The sides of the support structure are reflective and serve as the reflective sidewalls of the micro-reflector. Alternately, the LED mesa itself can serve as the support structure.

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