| Patent application number | Description | Published |
|---|
| 20080231180 | Light-Emitting Device With a Sealing Integrated Driver Circuit - The invention relates to light-emitting diodes (O-LED). In particular, it relates to the driver electronics needed for these devices. An organic electroluminescent device is provided, which has a hermetically closed very flat housing. To improve the functionality of an O-LED, considerably reduce the height of an O-LED module and allow a cost-effective mass production, the driver circuit and the electronic driver elements or the printed circuit board (PCH) with the electronic driver elements are incorporated into the cover plate of the device. | 09-25-2008 |
| 20080252571 | Method of Compensating an Aging Process of an Illumination Device - The present invention relates to a method of compensating an aging process of an illumination device comprising at least one organic light emitting diode ( | 10-16-2008 |
| 20080265795 | Circuit-Arrangement for Modulating an Led and Method for Operating Same - To achieve high modulation frequencies when modulating an LED, a circuit-arrangement for modulating at least one LED comprises a modulation-circuit ( | 10-30-2008 |
| 20090015156 | LIGHTING ELEMENTS WITH SEGMENTED ELECTRODES - An electroluminescent device. Providing atmosphere lighting is possible by an electroluminescent layer, and a first electrode layer arranged on a of the first side of the electroluminescent layer and a second electrode layer arranged on a second side, opposing the first side of the electroluminescent layer, for supplying charges to the electroluminescent layer, at least one first contact element for contacting the first eletrode layer with a charge supply, at least one second contact element for contacting the second electrode layer with the charge supply, wherein the first and second electric contact elements are arranged asymmetrically to each other such that the intensity of light emitted from the electroluminescent layer varies across its area. | 01-15-2009 |
| 20090021175 | SUPPLY CIRCUIT AND DEVICE COMPRISING A SUPPLY CIRCUIT - Supply circuits ( | 01-22-2009 |
| 20090072752 | LIGHT EMITTING DEVICE - The invention relates to a light emitting device ( | 03-19-2009 |
| 20090160364 | OPERATING SOLID-STATE LIGHTING ELEMENTS - Operating a lighting device by acquiring a target brightness level of at least one solid-state lighting unit, and determining a reference driving current amplitude for obtaining the target brightness level. If the reference driving current amplitude is below an optimum driving current amplitude, the solid-state lighting unit is operated at the optimum driving current amplitude, which is pulse-width modulated to obtain the target brightness level. | 06-25-2009 |
| 20090173728 | ELECTRICAL SYSTEM - The invention relates to an electrical system ( | 07-09-2009 |
| 20090290332 | LIGHTING SYSTEM - The present invention relates to a lighting system comprising a base part ( | 11-26-2009 |
