Title: OLED lighting devices having multi element light extraction and luminescence conversion layer

Abstract

An apparatus such as a light source has a multi element light extraction and luminescence conversion layer disposed over a transparent layer of the light source and on the exterior of said light source. The multi-element light extraction and luminescence conversion layer includes a plurality of light extraction elements and a plurality of luminescence conversion elements. The light extraction elements diffuses the light from the light source while luminescence conversion elements absorbs a first spectrum of light from said light source and emits a second spectrum of light.

Inventors:

Krummacher, Benjamin Claus ^[1]; Antoniadis, Homer ^[2]

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+ Show Inventor Affiliations

1. Regensburg, DE
2. Mountain View, CA

Issue Date:

2010-11-16

Research Org.:

Osram Opto Semiconductors GmbH (Regensburg, DE)

Sponsoring Org.:

USDOE

OSTI Identifier:

1014891

Patent Number(s):

7834546

Application Number:

US Patent Application 11/947,458

Assignee:

Osram Opto Semiconductors GmbH (Regensburg, DE)

Patent Classifications (CPCs):

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L51/5036 - {Multi-colour light emission, e.g. colour tuning, polymer blend, stack of electroluminescent layers}

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B82Y20/00 - Nanooptics, e.g. quantum optics or photonic crystals

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING

H05B33/14 - characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L33/508 - {having a non-uniform spatial arrangement or non-uniform concentration, e.g. patterned wavelength conversion layer, wavelength conversion layer with a concentration gradient of the wavelength conversion material}

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING

H05B33/22 - characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L2251/5369 - Nanoparticles used in whatever layer except emissive layer, e.g. in packaging
H01L51/5262 - {Arrangements for extracting light from the device}

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING

H05B33/28 - of translucent electrodes

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L27/322 - {using colour filters or colour changing media [CCM]}

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DOE Contract Number:  

FC26-04NT41947

Resource Type:

Patent

Country of Publication:

United States

Language:

English