Patent · US Active

Light-emitting device

US11626545B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Benjamin Daniel Mangum · Tualatin, US
David O'Brien · Portland, US
Britta Göötz · Regensburg, DE

Key dates

Filing date	Jun 10, 2021
Grant date	Apr 11, 2023
Priority date	—
Expiry date	Jun 19, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/855
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A light emitting device is disclosed. In an embodiment a light-emitting device includes a pixel comprising at least three sub-pixels, wherein the at least three sub-pixel include a first sub-pixel including a first conversion element, wherein the first conversion element includes a green phosphor, a second sub-pixel including a second conversion element, wherein the second conversion element includes a red phosphor and a third sub-pixel free of a conversion element, wherein the third sub-pixel is configured to emit blue primary radiation, wherein each sub-pixels has an edge length of at most 100 μm, and wherein the pixel is a linear chain of sub-pixels and a plurality of pixels is arranged in a two dimensional ordered pattern so that a first sub-pixel is never adjacent to a third sub-pixel in a vertical direction and in a horizontal direction of the ordered pattern.

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