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