Patents
Sitemap › H05 - Electric techniques not otherwise provided for › H05B - Electric heating; Electric lighting not otherwise provided for › H05B 33 - Electroluminescent light sources
Patents for H05B 33 - Electroluminescent light sources (53,055)
12/1991
12/27/1991EP0462504A2 Process for coating finely divided material with titania and moisture insensitive zinc sulfide luminescent materials made therefrom
12/24/1991US5074817 Method for manufacturing an electroluminescence display
12/18/1991EP0461542A2 Thin film electrode for devices and electroluminescence device therewith and process for production thereof
12/17/1991US5073446 Protected from dark spot formation
12/12/1991WO1991019411A1 Lighting control system
12/10/1991US5072263 Thin film el device with protective film
12/10/1991US5072262 Electric-electronic device including polyimide thin film
12/10/1991US5072152 High brightness TFEL device and method of making same
12/04/1991EP0459806A1 Method of manufacturing thin film EL device and apparatus for manufacturing the same
12/04/1991EP0459201A1 Heterocyclic polymethine dyes having carbamate or amide groups and optical recording medium
12/03/1991US5069975 Efficient emission of blue light on application of low voltage
12/03/1991US5069815 Powder electroluminescent element comprising inorganic electroluminescent particles and a polyurethane binder
11/1991
11/26/1991US5068157 Electroluminescent element
11/19/1991US5066895 Electroluminescent lamp driver
11/19/1991US5066893 Driving circuit for an electroluminescence device
11/19/1991US5066551 Electroluminescent sheet element
11/14/1991WO1991017537A1 Single cell bimos electroluminescent display driver
11/06/1991EP0455401A2 Encapsulated electroluminescent phosphor and method for making same
11/06/1991CN2088196U Multi-function lamp
11/05/1991US5063420 Method for making an LED array
10/1991
10/29/1991US5061861 Mos integrated circuit for driving light-emitting diodes
10/29/1991US5061569 Superior stability
10/29/1991CA1291551C Electroluminescent device with light transmissive cathode
10/22/1991US5059863 Multilayered emits light with high luminescence
10/22/1991US5059862 High stability; compressing aluminum and magnesium
10/22/1991US5059861 Organic electroluminescent device with stabilizing cathode capping layer
10/22/1991US5059148 Thin film flat panel displays and method of manufacture
10/18/1991WO1991016722A1 Electroluminescent phosphors with long life and method for making the same
10/18/1991CA2062750A1 Electroluminescent phosphors with long life and method for making the same
10/16/1991EP0452142A2 Light emitting edge structure with uniform light emission filter
10/16/1991CN2086959U Plane light source by d.c. electroluminescence
10/14/1991CA2038541A1 Tfel edge emitter structure with uniform light emission filter
10/10/1991DE4107526A1 Light emitting diode with AC current limiter - has current limiting transistors serially coupled to each of anti-parallel LEDs
10/09/1991EP0450077A1 Thin-film electroluminescent element and method of manufacturing the same
10/08/1991US5055363 Substrate having light-emitting and electrocnductive portions, and electrodes for applying voltage
10/08/1991US5055360 Multilayer structure
10/08/1991US5055076 Electroluminescent panel and method of manufacturing the same
10/08/1991US5054778 Lighted ball
10/02/1991EP0449125A2 Thin film electroluminescence device and process for production thereof
10/02/1991EP0442885A4 Electroluminescent lamp and method for producing the same
10/01/1991US5053679 Photoconductive-electroluminescent memory effect polychromatic display
10/01/1991CA1290004C Electroluminescent panel having a power lead directly affixed to a transparent electrode
09/1991
09/25/1991EP0448268A2 Semiconductor luminescent device having organic/inorganic junction
09/25/1991EP0448056A2 Method for preparing sulfide phosphors
09/24/1991US5051654 Electroluminescent lamp and method of manufacture
09/18/1991EP0446746A2 Light-emitting thin film and thin film EL device
09/17/1991US5049780 Optical interference, electroluminescent device having low reflectance
09/17/1991US5049455 Amphiphilic anthracene derivative
09/10/1991US5047687 Organic electroluminescent device with stabilized cathode
09/10/1991US5047686 Phosphor with impurities
09/05/1991WO1991013381A1 Electrochromic, electroluminescent and electrochemiluminescent displays
09/03/1991US5045755 Electroluminescent panel lamp with integral electrical connector
09/03/1991US5045235 Indium and zirconium oxide
08/1991
08/28/1991EP0443861A2 Organic electroluminescence device
08/28/1991EP0442885A1 Electroluminescent lamp and method for producing the same.
08/27/1991US5043715 Thin film electroluminescent edge emitter structure with optical lens and multi-color light emission systems
08/27/1991US5043632 TFEL edge emitter structure with uniform light emission filter
08/27/1991US5043631 Thin film electroluminescent edge emitter structure on a silicon substrate
08/22/1991WO1991012703A1 Light-emitting power source circuit
08/21/1991EP0442506A2 Image reading device
08/21/1991EP0441965A1 Light-emitting diode drive circuit
08/20/1991US5041326 Electroluminescent laminate assembly
08/08/1991WO1991011896A1 Circuit arrangement with at least one light-emitting source
08/08/1991WO1991011692A1 Source intensity adjustment apparatus for optical channel
08/07/1991EP0439627A1 Organic electroluminescent element
08/06/1991US5038255 Vehicle lamp
08/06/1991US5037709 Light emitting diodes; brightness
07/1991
07/30/1991US5036249 Electroluminescent lamp panel and method of fabricating same
07/17/1991EP0437355A1 Process and apparatus for preparing a thin film electroluminescent device
07/11/1991WO1991010340A1 Electroluminescent flat display and process for producing it
07/09/1991US5030943 Portable electroluminescent back light
07/04/1991DE4041982A1 Thin film colour electro-luminescence display - has colour filters lying on surface to avoid parallax problems
07/02/1991US5029320 Thin film electroluminescence device with Zn concentration gradient
07/02/1991CA1285638C Electroluminescent device with organic luminescent medium
06/1991
06/27/1991DE3942699A1 Elektrolumineszenz-flachdisplay und verfahren zur herstellung derartiger flachdisplays Electroluminescent flat display and process for production of such flat displays
06/25/1991US5027040 EL operating power supply circuit
06/25/1991US5027036 Drive circuit for an electroluminescence display device
06/25/1991US5026661 Method of manufacturing zinc chalcogenide semiconductor devices using LP-MOCVD
06/19/1991EP0432930A2 Electroluminescent lamp panel
06/05/1991CN2078512U Face-luminescent indicating lamp
05/1991
05/29/1991EP0429228A2 Multi-layer structure and method of constructing the same for providing TFEL edge emitter modules
05/28/1991US5019769 Semiconductor laser diode controller and laser diode biasing control method
05/28/1991US5019748 Method for making an electroluminescent panel lamp as well as panel lamp produced thereby
05/22/1991EP0428350A2 TFEL edge emitter module and packaging assembly employing sealed cavity capacity varying mechanism
05/21/1991US5017824 TFEL edge emitter module and packaging assembly employing sealed cavity capacity varying mechanism
05/14/1991US5015999 Display unit
05/14/1991US5015918 Bicycle single-wire lighting system with steady-flashing-reflector rear warning device
05/14/1991US5015836 Source intensity adjustment apparatus for optical channel
05/14/1991CA2029028A1 Multi-layer structure and method of constructing the same for providing tfel edge emitter modules
05/08/1991EP0426494A1 Vapor deposition apparatus
05/07/1991US5013971 Temperature stabilization of laser diodes and light emitting diodes
05/07/1991US5013967 Electroluminescence lamp and method of use thereof
05/02/1991WO1991006078A1 Battery-powered flashing superluminescent light emitting diode safety warning light
05/02/1991EP0425295A2 Method of making an electroluminescent device
04/1991
04/30/1991US5012156 Dispersion-type electroluminescence device
04/28/1991CA2022972A1 Thin film electroluminescent compositions
04/23/1991US5010412 High frequency, low power light source for video camera
04/23/1991US5009958 Switches, optical memories, waveguides
04/23/1991CA1283282C Mask assembly having mask stress relieving feature
04/18/1991WO1991005028A1 Doping method
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