Patent · US Active

Illumination unit comprising luminescence diode chip and optical waveguide, method for producing an illumination unit and LCD display

US8331746B2 · kind B2 · utility

29Cited by

17References

27Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Georg Bogner · Lappersdorf, DE
Herbert Brunner · Sinzing, DE
Stefan Gruber · Bad Abbach, DE

Key dates

Filing date	Sep 22, 2006
Grant date	Dec 11, 2012
Priority date	—
Expiry date	Sep 22, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2224/48247
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An illumination unit comprising a luminescence diode chip mounted on a chip carrier and comprising an optical waveguide is specified. The optical waveguide is joined together from at least two separate parts, wherein the luminescence diode chip is encapsulated by one of the parts of the optical waveguide. A method for producing a luminescence diode chip of this type and also an LCD display comprising an illumination unit of this type are furthermore specified.

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