Abstract: A wallpaper (1) for contacting an electrical device (2), which is attachable to a wall (3), preferably attachable to any kind of room walls or ceiling or flooring of a building, whereas the wallpaper (1) comprises a plurality of conductive stripes (4), and whereas the electrical device (2) features contact pins (5) in order to contact the conductive stripes (4), characterised in that the conductive stripes (4) feature a certain stripe pitch (6) and the pins (5) feature a certain pin pitch (7), whereas different conductive stripes (4) feature different voltages in order to match the contact voltage of the contact pins (5) due to the contacting of different conductive stripes (4) basing on the certain pitches (6, 7) by placing the electrical device (2) in different positions.

Abstract: The invention relates to a light emitting plate system (1), in which the plate (10) is equipped with at least one particle layer (40), the particle (50) of which have been designed to achieve an improved transparency and light extraction efficiency of the plate (10).

Abstract: An electro-optically active organic diode has anode electrode (102), a cathode electrode (122), an electro-optically active organic layer (110) arranged between the electrodes (102, 122) and a charge carrier organic layer (116) arranged between said electro-optically active organic layer (110) and said cathode electrode layer (122), and adjacent to said electro-optically active organic layer (110). The charge carrier organic layer (116) is formed of a highly doped organic semiconductor material. A short protection layer (120) is arranged between said cathode electrode layer (122) and said charge carrier organic layer (116), and adjacent to said cathode electrode layer (122), wherein said short protection layer (120) is formed of an inorganic semiconductor material. The short protection layer prevents direct contact between the cathode layer and the charge carrier organic layer, which reduces the risk that the cathode layer will have detrimental impact on the charge carrier organic layer.

Abstract: Snap-on connectors (1) connect first electrodes (41) of circuits (40) comprising light emitting diodes (43) to first electrical elements (21) such as first wires having first element sizes and connect second electrodes (42) of the circuits (40) to second electrical elements (22) such as second wires having second element sizes smaller than the first element sizes and comprise first recesses (4) for guiding the first electrical elements (21) and comprise second recesses (5) for guiding the second electrical elements (22). The recesses (4,5) comprise means for pairing the recesses (4,5) and the electrical elements (21,22) in a non-interchangeable way, to reduce a chance that the electrodes (41,42) and the electrical elements (21,22) are connected in an incorrect (interchanged) way. These means comprise recess sizes or contacts (8,9,10,11) such as forks or pins sticking out from the recesses (4,5). Cables (31) comprise the electrical elements (21,22).

Abstract: Illumination device with a light emitting layer structure (4) formed on a substrate (2) comprising at least one electroluminescent layer (42) between a first (41) and a second electrode (43) to emit light through the substrate (2), which comprises at least a first substrate area (21) to emit diffuse light (31) und at least a second substrate area (22) to emit directed light (32).

Abstract: An electroluminescent device includes a substrate and a laminated body composed of a first electrode, an electroluminescent layer and a second electrode. The light output out of the electroluminescent device is increased by arranging a colloidal layer between the substrate and the laminated body. By using pigments in the colloidal layer, the emission color of the electroluminescent device can be changed and the daylight contrast improved.

Abstract: The invention relates to a lighting device (10) with a light emitter (1) that comprises OLEDs of at least two different primary colors. The light emitter (1) is followed by a primary optics, e.g. a collimator (13) or a lens, and by a tapered tubular reflector (14) with a diameter (d) that increases from its narrow end to its wide end. The light emitter (1) may particularly be composed of concentric rings of different OLEDs.

Abstract: The present invention relates to a LED comprising at least one red light emitting and/or conversion layer, which emits light in the wavelength of ?550 nm to ?750 nm, preferably ?630 nm to ?700 nm, and/or at least one blue light emitting layer, which emits light in the wavelength of ?400 nm to ?550 nm, preferably ?420 nm to ?500 nm, and/or at least one green and/or yellow emitting luminescence material, which emits light in the wavelength ?530 nm to ?610 nm, whereby the at least one green and/or yellow emitting luminescence material is capable of absorbing light which is emitted by the at least one blue light emitting layer, characterized in that the red light emitting and/or conversion layer is made of a semiconductor material.

Abstract: The present invention relates to a LED comprising a substrate layer with a first surface and a second surface opposing the first surface and having a refractive index of n1, a light emitting means provided on said first surface and an array of particles arranged on said second surface, characterized by an index matching means between said particles on said second surface having a refractive index of n2 being n2?n1?0.5 and n2?n1+3 and whereby the filling height of the index matching means is lower than the maximum height of the array of particles.

Abstract: The invention relates to an electroluminescent device comprising a substrate (1) and a laminated body composed of a first electrode (3), an electroluminescent layer (4) and a second electrode (5). The light output out of the electroluminescent device is increased by arranging a colloidal layer (2) between the substrate (1) and the laminated body. By using pigments in the colloidal layer (2), the emission color of the electroluminescent device can be changed and the daylight contrast improved.

Abstract: An illumination system has at least one organic light-emitting diode (1) deposited on a rigid and translucent substrate (11). The organic light-emitting diode includes first (3) and second (4) electrodes for providing electrical power to the organic light-emitting diode. The substrate at a side facing away from the organic light-emitting diode is arranged on a translucent waveguide (15). The waveguide at a side facing away from the organic light-emitting diode is provided with means (25) for coupling out light emitted by the organic light-emitting diode. In operation, light generated by the organic light-emitting diode travels through the substrate and the waveguide and is emitted by the illumination system in a direction substantially normal to the waveguide. Preferably, the illumination system comprises a plurality of organic light-emitting diodes arranged on the translucent waveguide. According to the invention, light emission by the illumination system is improved.

Abstract: An EL structure is described, with a single ultraviolet or blue light emitting layer that is connected to a back electrode. The top surface comprises three separate segments for the primary colors red, green and blue. Another single phosphorescent blend or a two-component phosphorescent blend is deposited on at least two of the three segments. Each of the three segments can be individually driven by a corresponding top electrode. Thus, a single chip solution is provided for a LED with tunable visible light.

Abstract: The invention relates to an electroluminescent device comprising a substrate (1), a porous layer (2) that borders on the substrate (1), a laminated body that borders on the porous layer (2) and that is composed of at least a first electrode (3), an electroluminescent layer (4) and a second electrode (5), a colored material, preferably an ink, being present at least partially in the pores of the porous layer (2). The porous layer (2) may be segmented and include a plurality of different colored materials, so that a black matrix structure and/or a color filter structure is obtained. The invention also relates to a method of manufacturing an electroluminescent device.

Abstract: The invention relates to an electroluminescent device comprising a substrate (1) and a laminated body composed of a first electrode (3), an electroluminescent layer (4) and a second electrode (5). The light output out of the electroluminescent device is increased by arranging a colloidal layer (2) between the substrate (1) and the laminated body. By using pigments in the colloidal layer (2), the emmission color of the electroluminescent device can be changed and the daylight contrast improved.

Abstract: The invention describes a light-emitting device which comprises at least a substrate (1), an anode (2), a first hole transport layer (3), a light-emitting layer (5) and a cathode (6), and in which a first hole blocking layer (4) is arranged between the first hole transport layer (3) and the light-emitting layer (5). The hole blocking layer (4) reduces the concentration of holes which reach the light-emitting layer (5) and thus the concentration of holes, which are usually the majority charge carriers, can be adapted to the electron current.

Abstract: A luminescent body is described that comprises a optical waveguide plate, a UV light source, and means for coupling the UV light into the optical waveguide plate and in which the optical waveguide plate is provided with a covering layer that contains one or more phosphors that are either applied directly or may be embedded in spherical particles of synthetic resin material. These phosphors convert UV light of a wavelength from 300 to 400 nm into visible light of a wavelength from 420 to 480 nm. The covering layer has a thickness from 10 to 5000 nm and exhibits a light reflection of <20%.

Abstract: An apparatus for reducing contaminants in a fluid stream, the apparatus comprising at least one light source for producing radiant energy to produce radicals in the fluid stream, whereby the light source is a dielectric barrier excimer discharge lamp.

Abstract: A process for recovering an active catalyst component from a process stream containing, in addition to dissolved active catalyst component, also at least aldols, acetals and/or esters, includes admixing an alcohol component comprising at least one C1 to C10 alcohol, with the process stream to form solid active catalyst component. The solid active catalyst component is recovered from a residual alcohol-rich phase.

Abstract: The invention relates to a liquid crystal picture screen provided with a background lighting system which comprises at least one light source and a collimator formed by hourglass-shaped microprisms. The light of the light source can be effectively collimated within a desired angular range by means of the collimator.

Abstract: Organic light emitting devices emit light when operated with low dc voltage forward bias. According to the present invention, a space saving circuit arrangement of organic light emitting devices is disclosed, the circuit arrangement emitting light on both the positive and the negative cycle of an ac driving voltage. Furthermore a method is disclosed for producing the circuit arrangement on a substrate. Advantageously, the present invention allows for high voltage ac driving of organic light emitting devices or organic diodes without the need of additional rectifying electronics.