Abstract:
The invention relates to an electroluminescent device with a transparent cathode. Said electroluminescent device comprises a substrate (1) and, adjacent to said substrate (1), a laminated body composed of a first electrode (2), an electroluminescent layer (3) and a second metallic electrode (4). Said second electrode (4) is covered with transparent dielectric layers (5), which increase the transmission of light through the second metallic electrode (4) and serve as filters.
Abstract:
The invention relates to a light emitting device (10), comprising a stack of layers (15) of a substrate, with a basic layer (20), a first electrode layer (30) and a second electrode layer (40), wherein an organic light-emitting layer (50) is sandwiched between the first (30) and the second electrode layer (40), the organic light-emitting layer (50) is emitting an artificial light (51). The invention discloses that at least a part of the basic layer (20) is covered by a shielding structure (60), wherein the shielding structure (60) comprises a plurality of lamella elements (70,70'), the lamella elements (70,70') extend sheet like from the stack of layers (15) in such a way, that the lamella elements (70,70') guide the artificial light (51) out of the light emitting device (10).
Abstract:
A colour tunable lighting element is described, which comprises an assembly of dielectric barrier discharge lamps, each of them filled with a noble gas or a noble gas mixture, wherein a Xe low-pressure discharge generates invisible UV radiation, which is converted into visible light by one or several phosphors being coated onto the inner surface of the bulb, wherein the visible light of several dielectric barrier discharge lamps is mixed by optical means and is emitted homogeneously. Such an assembly of dielectric barrier discharge lamps is useful for the generation of white light with an arbitrary colour temperature and of saturated coloured light.
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. This reduces the risk of a short to occur between the cathode and the anode, which results in increased reliability of the organic diode.
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:
The invention relates to an electroluminescent device comprising a substrate (1), a porous layer (2) that borders on said substrate (1), a laminated body that borders on said 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). Said 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:
It is described a lamp (6) with a 3D illuminating area (7). The lamp (6) comprises a plurality of organic light emitting diode (OLED) units (1) and each OLED unit (1) comprises a light emitting region (8-12) to form a part of the illuminating area (7). The lamp (6) enables a desired light distribution (beam shaping) and is preferably configured as a high brightness light sources and light sources with increased lifetime and improved co lor mixing. The configuration with a plurality of OLED units (1) offers design freedom and provides integrated light sources. Further, the invention may reduce the well known heat problem.
Abstract:
The invention relates to an electroluminescent device with a transparent cathode. Said electroluminescent device comprises a substrate (1) and, adjacent to said substrate (1), a laminated body composed of a first electrode (2), an electroluminescent layer (3) and a second metallic electrode (4). Said second electrode (4) is covered with transparent dielectric layers (5), which increase the transmission of light through the second metallic electrode (4) and serve as filters.
Abstract:
The invention relates to an organic light emitting diode device (1) comprising a substrate material (10) as a carrier, which is coated and/or superimposed by a lower electrode layer (11), at least one emitting material layer (12) for light emitting and an upper electrode layer (13), whereas the upper electrode layer (13) features light reflectance, in order to pass the emitted light through the substrate material (10), whereas said device (1) comprises a light sensor (14) for detecting the luminous intensity of the emitted light.
Abstract:
The present invention relates to a LED comprising a substrate layer (10) with a first surface and a second surface opposing the first surface and having a refractive index of n