Patents for H05B 33 - Electroluminescent light sources (53,055) |
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02/20/1979 | US4140937 Direct current electroluminescent devices |
02/13/1979 | US4139261 Display panel constructions eliminating discontinuities between adjacent panels |
02/07/1979 | EP0000613A1 Cathode ray tube storage device with an electroluminescent display panel |
02/06/1979 | US4138620 Multi-panel electroluminescent light assembly |
01/30/1979 | US4137481 Electroluminescent phosphor panel |
01/23/1979 | US4135959 Method of manufacture of flat panel display device |
10/17/1978 | CA1040768A1 Electroluminescent display panel with enlarged active display areas |
10/17/1978 | CA1040767A1 Electroluminescent memory and display device |
10/10/1978 | US4119745 Deposition of electroluminescent material through superimposed dual masks |
09/12/1978 | US4114070 Display panel with simplified thin film interconnect system |
09/12/1978 | CA1038154A1 Method of making a manganese-activated zinc sulphide electroluminescent powder |
08/01/1978 | US4104555 Polymeric film |
07/25/1978 | US4103171 Portable cartridge contained electroluminescent sheet for reading and writing in the dark |
07/04/1978 | US4099091 Electroluminescent panel including an electrically conductive layer between two electroluminescent layers |
07/04/1978 | US4098919 Process for producing a thin fluorescent film for electroluminescence |
06/27/1978 | US4097776 Moisture resistance |
06/20/1978 | US4096412 Driver circuit for electrochromic display device |
05/30/1978 | USRE29648 Process for the preparation of electroluminescent III-V materials containing isoelectronic impurities |
05/30/1978 | US4092659 Semiconductors, silicon and silicon dioxide, aluminum oxide or magnesium fluoride |
05/30/1978 | US4092561 Stripe contact providing a uniform current density |
05/16/1978 | US4090189 Brightness control circuit for LED displays |
04/11/1978 | US4084114 Substrate assembly for a luminescent display panel wherein graphite powder is bound into segmented electrodes by glass containing zinc oxide |
03/28/1978 | US4081716 Fluorescent display elements |
02/21/1978 | US4075449 Switch with electroluminescent indicator |
01/03/1978 | US4066925 Electroluminescent lamp and electrode preform for use therewith |
09/27/1977 | US4051374 Imaging device having improved blue response |
09/27/1977 | US4050834 Internally powered traffic control device |
08/16/1977 | US4042854 Flat panel display device with integral thin film transistor control system |
07/12/1977 | US4035774 Bistable electroluminescent memory and display device |
07/12/1977 | US4035686 Narrow emission spectrum lamp using electroluminescent and photoluminescent materials |
06/28/1977 | US4032802 Reduction of intermodulation |
06/14/1977 | US4029991 Instrument panel illumination dimming control |
05/31/1977 | US4027192 Or tin oxide |
05/24/1977 | US4025780 Fluorescent light fixture |
05/17/1977 | US4024404 Electroluminescent backing sheet for reading and writing in the dark |
05/17/1977 | US4024389 Photo-image memory panel and activating method therefor |
04/26/1977 | US4020389 Electrode construction for flexible electroluminescent lamp |
03/29/1977 | US4015166 X-Y matrix type electroluminescent display panel |
03/22/1977 | US4013915 Light emitting device mounting arrangement |
03/01/1977 | US4009938 Liquid crystal display device |
02/01/1977 | US4006383 Electroluminescent display panel with enlarged active display areas |
02/01/1977 | US4006354 Low-profile lighting fixture |
01/25/1977 | US4004848 Liquid crystal display device |
01/18/1977 | US4004144 Fluorescent light unit |
11/30/1976 | US3995299 Radiation sources |
10/05/1976 | US3984674 Illuminated decorative items |
10/05/1976 | US3984586 Method of making a manganese-activated zinc sulphide electroluminescent powder |
09/21/1976 | US3981764 III-V Compound semi-conductor crystal growth from a liquid phase on a substract including filtering liquid phase |
08/17/1976 | US3975661 Driving method for a thin-film electroluminescent element of a three-layer construction |
05/18/1976 | US3958265 Semiconductor light-emitting diode and method for producing same |
04/06/1976 | US3948693 Process for the production of yellow glowing gallium phosphide diodes |
03/16/1976 | US3944854 Light-emitting diode connected to a coil |
03/16/1976 | US3943881 Numeric character indicator |
03/02/1976 | US3942185 Polychromatic electroluminescent device |
02/03/1976 | US3936816 Flat display system |