Patent · US Active

Method for operating an optoelectronic semiconductor device and optoelectronic semiconductor device

US11388798B2 · kind B2 · utility

0Cited by

0References

17Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Martin Moritz · Landser, FR
Sebastian Stigler · Scharmassing, DE
Uli Hiller · Bad Abbach, DE
Benjamin HÖFLINGER · Regensburg, DE

Key dates

Filing date	Sep 15, 2020
Grant date	Jul 12, 2022
Priority date	—
Expiry date	Sep 15, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/825
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for operating an optoelectronic semiconductor device. The semiconductor device includes a first optoelectronic semiconductor chip for generating, for example, blue light, an optional second optoelectronic semiconductor chip for generating, for example, green light, and a third optoelectronic semiconductor chip for generating, for example, red light. The semiconductor device also includes a driver unit which supplies the semiconductor chips with current during operation. The third semiconductor chip is operated on the basis of a temperature-brightness characteristic curve stored in the driver unit. The temperature-brightness characteristic curve is configured for a minimum color location deviation over an intended operating temperature range, relative to at least one reference color location.

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