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