Patents for H05B 33 - Electroluminescent light sources (53,055) |
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04/16/1991 | US5008595 Ornamental light display apparatus |
04/10/1991 | EP0421494A2 A thin film electroluminescent (EL) device and method of manufacturing the same |
04/09/1991 | US5006365 Phosphor layer formed; high brightness, low voltage |
04/03/1991 | EP0420518A2 Power saving drive circuit for TFEL devices |
04/03/1991 | EP0420167A2 Electroluminescent semiconductor device |
04/02/1991 | US5004956 Thin film electroluminescent edge emitter structure on a silcon substrate |
03/26/1991 | US5003222 Connector for electroluminescent display panel |
03/26/1991 | US5003221 Electroluminescence element |
03/26/1991 | CA2022971A1 Power saving drive circuit for tfel devices |
03/21/1991 | WO1991003918A1 Thin-film el element |
03/21/1991 | DE3934421C1 Protective circuit for circuitry with light indicator in motor vehicle - has transistor breaking current flow in dependence on information voltage from resistor measuring current |
03/12/1991 | US4999753 Portable safety device |
03/12/1991 | US4999539 Electrode configuration for reducing contact density in matrix-addressed display panels |
03/07/1991 | WO1991003141A1 Thin-film el element |
03/06/1991 | EP0415372A2 AC powder type EL panel and method of manufacturing the same |
03/06/1991 | CN1049752A Transparent electro-conductive film, and ac powder type el panel and liquid crystal display using same |
03/05/1991 | US4998043 LED stabilizing light source device |
02/27/1991 | CN2072304U Light controlled mini sleeping lamp |
02/26/1991 | US4996523 Electroluminescent storage display with improved intensity driver circuits |
02/20/1991 | EP0413564A2 Formation of polymeric metal oxide materials |
02/20/1991 | EP0413441A1 Radiation generator control apparatus |
02/19/1991 | WO1991003142A1 Organic electroluminescent element |
02/19/1991 | US4995043 Thin-film electroluminescence apparatus including optical interference filter |
02/19/1991 | CA2037917A1 Organic electroluminescence device |
02/12/1991 | US4992704 Variable color light emitting diode |
02/05/1991 | US4990286 Zinc oxyfluoride transparent conductor |
01/31/1991 | DE3925244A1 Selectively energising circuit for antiparallel LEDs - has junction points between anode and cathode of two LEDs coupled to voltage source poles |
01/29/1991 | US4988889 Battery operated |
01/29/1991 | US4988579 A substrate, a light emitting part and a conductive part joined to the substrate, a pair of electrodes for applying a voltage |
01/22/1991 | US4987340 Lead wire mounting structure for electroluminescence |
01/22/1991 | US4987339 Enhanced single layer multi-color luminescent display with coactivators |
01/22/1991 | US4986876 Method of smoothing patterned transparent electrode stripes in thin film electroluminescent display panel manufacture |
01/16/1991 | EP0408231A1 Integrated TFEL flat panel face and edge emitter structure producing multiple light sources |
01/10/1991 | WO1991000621A1 Light-emitting diode drive circuit |
01/10/1991 | DE4019988A1 Thin film electroluminescent display - consisting of luminescent layer between dielectric multilayers in which one multilayer is desired to improve voltage dependent properties |
01/10/1991 | CA2017709A1 Integrated tfel flat panel face and edge emitter structure producing multiple light sources |
01/09/1991 | EP0406762A2 Organic electroluminescent device |
01/08/1991 | US4983884 Supply circuit |
01/08/1991 | US4983880 Edge breakdown protection in ACEL thin film display |
01/08/1991 | US4983469 High tone white light |
01/02/1991 | EP0406143A1 Indicator light which can be fed by a DC voltage or an AC voltage |
01/02/1991 | EP0405361A1 Moisture trapping film for EL lamps of the organic dispersion type |
01/01/1991 | US4982314 Power source circuit apparatus for electro-luminescence device |
01/01/1991 | US4982141 Driver circuit for piezoelectric transducer and electroluminescent lamp |
01/01/1991 | US4982135 Electroluminescent device |
01/01/1991 | US4981712 Method of producing thin-film electroluminescent device using CVD process to form phosphor layer |
12/12/1990 | EP0171420B1 Electrical circuits and components |
12/11/1990 | US4977350 Color electroluminescence display panel having alternately-extending electrode groups |
12/05/1990 | EP0400625A2 Laminated films |
12/04/1990 | US4975338 Thin film electroluminescence device |
11/30/1990 | CA2017981A1 Laminated films |
11/29/1990 | WO1990014744A1 Electroluminescent device with silazane-containing luminescent zone |
11/29/1990 | WO1990014647A1 Portable safety device for attracting visual attention |
11/28/1990 | EP0399508A1 Organic electroluminescent device |
11/22/1990 | EP0398764A2 An organic thin-film el device |
11/22/1990 | EP0398592A2 Thin film electroluminescent edge emitter structure with optical lens and multi-color light emission system |
11/22/1990 | EP0398591A2 A thin film electroluminescent edge emitter assembly and integral packaging |
11/22/1990 | EP0397889A1 Light-emitting element |
11/20/1990 | US4972094 Lighting devices with quantum electric/light power converters |
10/31/1990 | EP0395327A2 A multiplexed thin film electroluminescent edge emitter structure and electronic drive system therefor |
10/30/1990 | US4967251 Dielectric overcoating; transparent electrode |
10/30/1990 | US4967117 Encapsulated electroluminescence device |
10/24/1990 | EP0393982A2 Method for manufacturing edge emission type electroluminescent device arrays |
10/24/1990 | EP0393979A2 Method for manufacturing edge end emission type electroluminescent device arrays |
10/21/1990 | WO1990013148A1 Electroluminescent devices |
10/16/1990 | US4964010 Apparatus for limiting a time integration value of a pulsed current |
10/16/1990 | US4963861 Electroluminescent memory display having multi-phase sustaining voltages |
10/16/1990 | US4963798 Synthesized lighting device |
10/16/1990 | US4963788 Thin film electroluminescent display with improved contrast |
10/11/1990 | DE3911293A1 Circuit arrangement for driving luminous elements |
10/09/1990 | US4962374 Thin film el display panel drive circuit |
10/09/1990 | US4961956 Electroluminescent lamps and phosphors |
10/04/1990 | WO1990011247A1 Zinc oxyfluoride transparent conductor |
10/03/1990 | EP0390569A2 Transparent electro-conductive film, and AC powder type EL panel and liquid crystal display using the same |
10/03/1990 | EP0390551A2 Organic electroluminescent device |
10/03/1990 | EP0390407A2 Reduction of intermodulation distortion in light emitting diodes |
09/26/1990 | EP0389350A1 Polychrome display device with electroluminescent photoconductive memory |
09/26/1990 | EP0388768A2 Organic electroluminescent device containing aromatic dimethylidyne compounds |
09/26/1990 | EP0388608A1 Thin-film electroluminescence apparatus |
09/20/1990 | WO1990011003A1 Thin-film green el element |
09/20/1990 | DE4008126A1 Duennschicht-elektrolumineszenzbauelement und verfahren zu seiner herstellung Duennschicht-electroluminescent device and process for its manufacture |
09/19/1990 | EP0387715A2 Electroluminescent element |
09/19/1990 | CN1045501A Electroluminescent panel and method of manufacturing same |
09/18/1990 | US4958105 Row driver for EL panels and the like with inductance coupling |
09/12/1990 | EP0386312A2 Electroluminescent panel and method of manufacturing the same |
09/11/1990 | US4956031 Method of manufacturing an elongated electroluminescence element |
09/07/1990 | WO1990010365A1 Thin-film el element |
09/07/1990 | WO1990010045A1 Red electroluminescent element |
09/04/1990 | US4954752 Row driver for EL panels and the like with transformer coupling |
09/04/1990 | US4954747 Multi-colored thin-film electroluminescent display with filter |
09/04/1990 | US4954746 Thin film electroluminescence displaying apparatus |
08/29/1990 | EP0384829A1 Multicolour electroluminescent flat panel display having a memory effect |
08/28/1990 | US4952820 Reduction of intermodulation distortion in light emitting diodes |
08/21/1990 | US4951064 Thin film electroluminescent edge emitter assembly and integral packaging |
08/21/1990 | US4950950 Electroluminescent device with silazane-containing luminescent zone |
08/14/1990 | US4949019 Method of driving thin film EL panel for aging |
08/08/1990 | EP0381479A1 Method and apparatus for driving capacitive display device |
08/08/1990 | CN1009150B Membrane electro luminescent device and its making method |
08/07/1990 | US4947160 Multiplexed thin film electroluminescent edge emitter structure and electronic drive system therefor |
08/07/1990 | US4947081 Dual insulation oxynitride blocking thin film electroluminescence display device |