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)
10/1982
10/26/1982US4356429 Hole injecting zone comprising porphyrinic compound between anode and luminescent zone
10/19/1982CA1134036A1 Electrical devices involving information bit shifting using electroluminescent and photoconductive properties
10/13/1982EP0062351A1 Cyanoethylated olefin-vinyl alcohol copolymer and dielectric material and adhesive comprising the same
10/12/1982US4354142 Circuit arrangement for the pulsed illumination of a stroboscope ring
10/12/1982CA1133591A1 Method and device for driving non-linear threshold devices
08/1982
08/18/1982EP0057805A2 Opto-electronic display device using a point matrix
08/03/1982US4342947 Light indicating system having light emitting diodes and power reduction circuit
08/03/1982US4342945 Electroluminescent thin film device
07/1982
07/13/1982US4339822 Diode laser digital modulator
07/06/1982US4338547 Apparatus and method for generating light designs
06/1982
06/22/1982CA1126374A2 Strip buried heterostructure laser
06/15/1982CA1125897A2 Strip buried heterostructure laser
06/08/1982US4334220 Display arrangement employing a multi-element light-emitting diode
05/1982
05/04/1982CA1122859A1 Electronic grade aluminum nitride materials
04/1982
04/27/1982CA1122640A1 Multicolor display device using electroluminescent phosphor screen with internal memory and high resolution
04/20/1982US4326007 Electo-luminescent structure
04/06/1982US4323895 Display device for dashboard of automobile
03/1982
03/31/1982EP0048655A1 Supply circuit for a current monitoring lamp
03/30/1982US4322720 Display devices
03/09/1982US4319164 Power factor compensating electroluminescent lamp DC/AC inverter
02/1982
02/16/1982CA1118478A1 Method of forming carbon anodes in multidigit fluorescent display devices
01/1982
01/27/1982EP0044686A1 Organic electroluminescent cell, process for manufacturing the cell and its use
12/1981
12/01/1981US4303554 Indium compound, polycarboxylic acid and anhydride
11/1981
11/17/1981US4301451 Erasure method for memory-type EL display devices
11/03/1981US4298869 Light-emitting diode display
10/1981
10/20/1981US4296459 Light emitting electronic jewelry
10/13/1981US4295137 Electroluminescent display driver system for thin-film electroluminescent devices requiring electric field reversal
09/1981
09/08/1981CA1108740A1 Light emitting semiconductor component
09/01/1981US4287449 Containing one layer of alumina, and a second layer of molybdenum, zirconium, titanium, yttrium, tantalum or nickel
08/1981
08/11/1981CA1106907A1 Power supply system for a semiconductor light source
07/1981
07/21/1981US4279726 Process for making electroluminescent films and devices
07/21/1981CA1105429A1 Multi-panel electroluminescent light assembly
07/07/1981US4277755 Circuit arrangement for driving nonlinear threshold devices
06/1981
06/30/1981CA1103989A1 Geared pump
06/23/1981US4275403 Electro-luminescent semiconductor device
06/23/1981US4275336 Method of improving the memory effect and brightness of an alternating current excited thin film electroluminscent device
05/1981
05/12/1981CA1101125A1 Multistable cathode ray type storage display device
05/05/1981US4266223 Thin panel display
05/05/1981US4266164 Electroluminescent backing sheet for reading and writing in the dark
04/1981
04/28/1981US4264845 Ornamental light display and circuit therefor
04/21/1981US4263339 Process for the production of electroluminescent powders for display panels
04/07/1981CA1099040A1 Photoconductor control of electro-optically variable display cell
03/1981
03/03/1981US4254362 Power factor compensating electroluminescent lamp DC/AC inverter
02/1981
02/24/1981US4253097 Method and apparatus for reducing power consumption to activate electroluminescent panels
01/1981
01/27/1981US4247854 Gas panel with improved circuit for display operation
12/1980
12/30/1980US4242370 Zinc sulfide activated by copper and manganese, vacuum deposition
12/09/1980US4238793 Electroluminescent backlight for electrooptic displays
12/09/1980US4238707 Power supply system for a semiconductor light source
12/02/1980US4237381 Multilayered electroluminescent light assembly adaptable for reading and writing in the dark
12/02/1980CA1090569A1 Fibre optic display system
11/1980
11/26/1980EP0019495A1 Display device for the instrument panel of a motor vehicle
11/25/1980US4235663 Oxides of bismuth, germanium, gallium and group 2a
11/25/1980CA1090179A1 Positioning substrate for optical fibres
11/04/1980CA1089114A1 Method of producing a dielectric of two-layer construction
10/1980
10/28/1980US4231033 Logic level shifters and their application in luminous display circuits
10/15/1980EP0016926A1 A method of operating an alternating current excited thin film electroluminescent device
10/14/1980US4228485 Blinker aiming post light
09/1980
09/23/1980US4224532 One chip direct drive and keyboard sensing arrangement for light emitting diode and digitron displays
09/02/1980CA1085032A1 Electroluminescent phosphor panels
08/1980
08/05/1980CA1083251A1 Flat screen solid state display and memory device utilizing color centers
07/1980
07/29/1980US4215388 Novelty button
07/15/1980US4213074 Thin-film electroluminescent display panel sealed by glass substrates and the fabrication method thereof
07/08/1980US4211956 Light indicating system having light emitting diodes and power reduction circuit
07/08/1980US4211955 Solid state lamp
07/01/1980US4210848 Thin-film EL display panel with light-activated write and erase means
06/1980
06/03/1980US4206460 EL Display drive controlled by an electron beam
04/1980
04/08/1980CA1075316A1 Light emitting element drive system
04/01/1980US4196227 Mixing with organic silicate, silk screening
03/1980
03/25/1980US4195281 Lamp outage indicator circuit
03/25/1980CA1074282A1 Electroluminescent backing sheet for reading and writing in the dark
03/18/1980US4194141 Electroluminescent unit
02/1980
02/26/1980US4190836 Dynamic drive circuit for light-emitting diodes
02/26/1980US4190830 Lamp outage indicator circuit
02/12/1980US4188565 Oxygen atom containing film for a thin-film electroluminescent element
01/1980
01/08/1980US4183021 Circuit arrangement
01/08/1980US4182977 Constant output light emitting device
01/01/1980US4181753 Process for the production of electroluminescent powders for display panels and coating the powders with zinc phosphate
11/1979
11/28/1979EP0005442A1 Process and apparatus for producing aluminium nitride useful for electronic applications
10/1979
10/09/1979US4170772 Flat panel display with full color capability
10/09/1979US4170771 Orthogonal active-passive array pair matrix display
10/02/1979US4170018 Zinc silicate doped with phosphorus
10/02/1979CA1063667A1 Instrument panel illumination dimming control
09/1979
09/25/1979CA1062867A1 Support for a vaulted ceiling module-ii
08/1979
08/08/1979EP0003273A1 Power supply for a semiconductor light source
08/08/1979EP0003250A1 Multicolour electroluminescent display device
08/07/1979US4163920 Solid state source of radiant energy having a controllable frequency spectra characteristic
07/1979
07/03/1979US4159559 Electroluminscence
06/1979
06/26/1979US4159443 Electroluminescent optical devices
05/1979
05/29/1979US4156833 Information display panel and method of fabrication
05/22/1979US4156167 Radiation emitting system with pulse width and frequency control
05/15/1979US4155030 Multicolor display device using electroluminescent phosphor screen with internal memory and high resolution
05/01/1979US4152182 Process for producing electronic grade aluminum nitride films utilizing the reduction of aluminum oxide
04/1979
04/17/1979US4149885 Method of making electroluminescent display panel with enlarged active display areas
04/10/1979US4149108 Multistable cathode ray type storage display device
04/10/1979US4149071 Light emitting element drive system
04/03/1979US4147403 Positioning substrate for optical fibres
03/1979
03/13/1979US4144557 EL flashlight
03/13/1979CA1050645A1 Integrated semiconductor light-emitting display array
03/06/1979US4143297 Information display panel with zinc sulfide powder electroluminescent layers
02/1979
02/20/1979US4140941 Cathode-ray display panel
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