Koninklijke Philips Corporation N.v.

Oledworks Gmbh

Nxp B.v.

Stefan Peter Grabowski

Herbert Friedrich Boerner

Peter Van De Weijer

Herbert Lifka

Petrus Cornelis Paulus Bouten

Jens Meyer

Manfred Stephan Ruske

Rainald Gierth

Rainald Manfred Gierth

Peter Josef Schmidt

Cornelis Reinder Ronda

Hans-Helmut Bechtel

Dirk Hente

Wolfgang Busselt

Joachim F Opitz

Hans-Peter Loebl

Joerg Meyer

Erik Petrus Antonius Maria Bakkers

Helga Hummel

Hans Helmut Bechtel

Volker Lambert Van Elsbergen

Petrus Cornelis-Paulus Bouten

The invention relates to a substrate () for manufacturing an organic conversion device for converting electrical energy into light energy or light energy into electrical energy, wherein the substrate comprises a) an encapsulation layer () on the substrate, wherein the encapsulation layer includes a first inorganic layer (), a second inorganic layer () and an intermediate organic layer (), and b) a getter reservoir () in contact with the organic layer of the encapsulation layer. Water molecules will therefore not only be transported along the intermediate organic layer, but will also be gathered, especially absorbed, by the getter reservoir, if the encapsulation is damaged. This can slow down a transport of water molecules along a leakage path towards an organic conversion layer of the organic conversion device and hence slow down a possible degradation of the performance of the organic conversion device, if the encapsulation layer is damaged.

Encapsulated organic conversion device with getter reservoir

The present invention relates to an encapsulated semiconductor device () provided on a flexible substrate (), a method of providing an at least partially encapsulated semiconductor device () on a flexible substrate () and a software product for providing an at least partially encapsulated semiconductor device () on a flexible substrate (). In a preferred embodiment, an encapsulation method is presented in which the organic layer () of an inorganic/organic/inorganic multilayer barrier () on a plastic foil () as a substrate is removed at the edges of an OLED (). The edges are subsequently sealed with a standard TFE process to encapsulate the OLED (). This enables cuttable OLEDs () that are cut out of a larger plastic substrate () and gives a method to reduce side leakage in OLEDs () that have been manufactured in a roll-to-toll process.

Encapsulated semiconductor device and encapsulation method

The invention relates to OLEDs () having a substrate (), a first electrode layer (), a layer of organic electroluminescence material (), a second electrode layer (), a cover layer (), moisture-absorbing means () and a separating foil () of resilient material. According to the invention, said foil () is positioned between the second electrode layer () and the moisture-absorbing means (). This feature results in a longer mean life-time of the OLED. Advantageously spacer structures () (preferably formed as dots) are applied on the separating foil () between the foil () and the cover (). This prevents discoloring effects around the rim of the OLED material.

Organic electroluminescence device with separating foil

An organic electroluminescence device (OLED) has a substrate, a first electrode layer, a layer of organic electroluminescence material, a second electrode layer, a cover layer, a moisture-absorber and a separating foil of resilient material. The separating foil is positioned between the second electrode layer and the moisture-absorber. Spacer structures such as dots are applied on the separating foil between the foil and the cover.

A light emitting diode driving apparatus () comprises an arrangement () for supplying a signal to light emitting diodes (). The light emitting diodes () comprise different internal impedances () for producing different light outputs in response to a parameter of the signal having different values. As a result, the light emitting diodes () can be driven relatively independently from each other. Each light output may have an intensity and/or a color. Different light outputs may have different intensities for dimming purposes and/or different colors for color tuning purposes. The parameter may comprise a frequency parameter and/or a timing parameter. The light emitting diodes () may form parts of a serial branch, for example when being stacked organic light emitting diodes, or may form part of parallel branches. The internal impedances () may comprise capacities () and resistivities ().

Light emitting diode driving apparatus

The invention relates to an organic light emitting diode segment () comprising two organic light emitting diodes (), wherein the organic light emitting diodes are vertically stacked with their conducting directions pointing in opposed directions, wherein in the stack the organic light emitting diodes () are electrically connected to each other by a common shared electrode ().

Organic light emitting diode segment

The present invention relates to a light emitting device () having at least a first () and a second light emitting element (), with the first light emitting element () emitting a first light () and the second light emitting element () emitting a second light (), each light emitting element () being an OLED (), the OLED () comprising a sandwich structure with a substrate (), a first () and a second electrode () and an organic layer () being provided between the first () and the second electrode (), a light () leaving the light emitting device (), wherein at least a part of said light () is provided by a superposition of the first () and the second light ().

Light emitting device including multiple OLEDs

The invention relates to a light emitting system () for surfaces () of floor bottoms, walls or similar surfaces () of buildings for indoor or outdoor applications, in particular walkable or drivable surfaces (), whereas the system comprises a laminar and plane base floor material () for flooring the surface (), featuring a top surface () characterized in that on said top surface () of said base floor material () is layered a light guiding structure () for propagating light, which is coupled into said structure (), whereas said structure () features an emission surface (), arranged coplanar to the top surface () of said base floor material () for emitting the light.

Light emitting floor surface

An organic electroluminescent light source has at least one substrate and layers that are arranged on the substrate. The layers include electrodes of which at least one electrode is transparent and one acts as an anode and one as a cathode, and at least one organic electroluminescent layer that is arranged between the electrodes. The organic electroluminescent layer has regions that emit blue light and/or green light, and at least one phosphor layer that is arranged in the beam path of the light leaving the organic electroluminescent light source and that partly covers the electroluminescent layer.

Electroluminescent light source

A tunable radiation emitting semiconductor device includes at least one elongated structure at least partially fabricated from one or more semiconductor materials exhibiting a bandgap characteristic including one or more energy transitions whose energies correspond to photon energies of light radiation. The structure is operable to emit light radiation in response to a current flow therethrough. Moreover, the elongated structure is fabricated to be sufficiently narrow for quantum confinement of charge carriers associated with the current flow to occur therein. Furthermore, the structure further includes an electrode arrangement for applying an electric field to the elongated structure for causing bending of its bandgap characteristic for modulating a wavelength of the light radiation emitted in operation from the structure in response to the current flow therethrough.

Tunable radiation emitting semiconductor device

A semiconductor device, which is arranged in a semiconductor body (), and which comprises at least one source region () and at least one drain region (), each being of the first conductivity type, and at least one body () of the second conductivity type, arranged between source region () and drain region (), and at least one gate electrode () which is isolated with respect to the semiconductor body () via an isolation layer (). Said isolation layer () comprises polarizable particles, which are composed of a nanoparticulate isolating core and a sheath of polarizable anions or polarizable cations. The isolation layer () exhibits a high dielectric constant &#x3b5;.

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Neuss, Germany

Stefan Peter Grabowski