Abstract:
A lighting system includes at least two light-emitting diodes each emitting, in operation, visible light in a preselected wavelength range. A converter converts part of the visible light emitted by one of the diodes into visible light in a further wavelength range so as to optimize the color rendition of the lighting system. The diodes include a blue light-emitting diode and a red light-emitting diode. Further, the converter includes a luminescent material for converting a portion of the light emitted by the blue light-emitting diode into green light.
Abstract:
An OLED device includes a substrate, electrode layers and organic layers arranged on the substrate and at least one metal foil on top thereof. The first metal foil is electrically connected to one of the electrode layers. An enclosure of at least the organic layers is provided by the metal foil in conjunction with a sealant 113. Thus, the metal foil plays a major role in forming an OLED package. In addition, the metal foil provides a low ohmic external connection, which for example can be used for applying a driving current to the OLED.
Abstract:
A lighting system includes at least two light-emitting diodes each emitting, in operation, visible light in a preselected wavelength range. A converter converts part of the visible light emitted by one of the diodes into visible light in a further wavelength range so as to optimize the color rendition of the lighting system. The diodes include a blue light-emitting diode and a red light-emitting diode. Further, the converter includes a luminescent material for converting a portion of the light emitted by the blue light-emitting diode into green light.
Abstract:
The present invention discloses a method for the prevention of short circuits in electroluminescent (EL) devices comprising the steps of: Providing an EL device comprising a substrate (1) and stacked thereon in the order of mention: a first electrode layer (2), an EL stack (3) and a second electrode layer (4); applying a liquid film onto the second electrode layer to fill the pinholes (5) present in said layer; and drying and/or curing the liquid film to form a solid layer (6). Furthermore, an EL device produced by the method of the present invention is provided.
Abstract:
OLED device (1) comprising a substrate (4) with multiple light emitting OLED segments (5, 6, 7) on top of the substrate (4) each comprising an electroluminescent layer stack (6) of at least an organic light-emitting layer sandwiched between a substrate electrode (5) facing towards the substrate (4) and a counter electrode (7), which are connected in series and are separated from the adjacent OLED segment (5, 6, 7) by an interconnect region (3) located between the adjacent OLED segments comprising a first isolating layer (10) of an electrically non-conducting material between the substrate electrodes (5) of adjacent OLED segments to electrically isolate the adjacent substrate electrodes (5) from each other and a conductive layer (9) of an electrically conducting material to connect the counter electrode (7) of the OLED segment to the substrate electrode (5) of the adjacent OLED segment, wherein the electrically non-conducting material and/or the conducting material is suitable to redirect the light emitted by the adjacent OLED segments out of the substrate (4) to emit light (81) from the interconnect regions (3).
Abstract:
The present invention discloses a window system (10) comprising a transparent window element (1), a transparent organic light-emitting element (2) comprising at least one organic light emitting layer (21) arranged between electrodes (22) to emit artificial light (51, 52) and an optical element (3) comprising at least one functional layer (31) arranged between switching electrodes (32), which is electrically switchable between a transparent mode in order to enable a transmission of window light (4) through the window system and a reflective or absorbing mode in order to reflect or absorb at least an essential part of the artificial light (51, 52) emitted towards the optical element (3) as well as a building system comprising a multitude of window systems and a method of operating a window system.
Abstract:
A voltage-operated layered arrangement comprising a substrate (1), a layered structure (2, 3, 4, 5) that is applied to the substrate and that comprises at least one electrically conductive functional layer (3) arranged between a first electrode (2) and a second electrode (4), and a field-degrading layer (5) that is less electrically conductive than the functional layer (3) and that is applied to the second electrode (4) arranged on the side of the layered structure remote from the substrate in such a way that it covers the second electrode (4) at least in the region of an edge (4a) and connects the second electrode (4) to the first electrode (2) electrically.
Abstract:
This invention relates to an OLED device having a substrate (103), electrode layers (105, 109) and organic layers 107 arranged on the substrate and at least one metal foil (111) on top thereof. The first metal foil is electrically connected to one of the electrode layers. An enclosure of at least the organic layers is provided by the metal foil in conjunction with a sealant (113). Thus, the metal foil plays a major role in forming an OLED package. In addition thereto the metal foil provides a low ohmic external connection, which for example can be used for applying a driving current to the OLED.