Abstract: An electroluminescence element includes a light emission layer provided between a lower electrode and a transparent electrode for emitting light in response to a voltage applied between the electrodes. The lower electrode is formed with a cutout through which a part of the transparent electrode is exposed to facilitate provision of an anisotropic, conductive, heat-adhesive sheet in contact with both electrodes to electrically and physically connect lead terminals to the lower and transparent electrodes via the sheet for introduction of the voltage.

Abstract: An electroluminescent display is fabricated from an electroluminescent panel having an electroluminescent material coated on a substrate and a transparent conductor covering the electroluminescent material. The transparent conductor is masked according to the desired display format and unmasked areas of the transparent conductor are etched away. The masked areas and, therefore, each resulting region of layered electroluminescent material and transparent conductor, is composed of a unitary display segment and lead segment through which electricity is conducted to the display segment. A metallic conductor is applied to selected areas of the substrate on the surface opposite from the electroluminescent material and each region of metallic conductor is composed of a unitary display segment and lead segment through which electricity is conducted to the display segment.

Abstract: A folded electroluminescent lamp assembly (37,65, 87) including an electroluminescent lamp panel (10,41,74, 89) joined to a flexible circuit panel (4,42,73, 88) folded over and joined to the lamp panel. A tail (5,43,79, 90) extends from the circuit panel. Conductive tracks (30-35,56-58,78) extend across the circuit panel and the tail and are connected to the electrodes of the lamp panel. An electrical power source for activation of the electroluminescent lamp panel is to be connected to the tail (5,43,79, 90).

Abstract: An electroluminescent display is fabricated from an electroluminescent panel having an electroluminescent material coated on a substrate and a transparent conductor covering the electroluminescent material. Conductors, disposed on opposite sides of the electroluminescent material, and leads to the conductors which supply electricity to the conductors to excite the electroluminescent material are coated as unitary members on the electroluminescent panel and an adjacent non-conducting carrier strip attached to an edge of the electroluminescent panel.

Abstract: A dot matrix type luminous display in which flaws such as strains are substantially eliminated during the manufacturing process. A display board bearing light-emitting elements is covered by a flexible member having through-holes formed at locations corresponding to the light-emitting elements. These through-holes, which are filled with a heat-resistant, translucent resin, are offset from through-holes formed in the display board, which are used to provide electrical connections to the light-emitting elements.

Abstract: Disclosed is a transparent electrode sheet and method of producing therefor, in which a transparent electrode is formed on a transparent plastic film and a protection coating is further formed on the transparent electrode.

Abstract: Flexible, electroluminescent panels or lamps employ a phosphor which is embedded in a coating formulation, in which a polyester laminating resin has been activated by a catalyst containing toluene diisocyanate or diphenylmethane diisocyanate, to provide a relatively high dielectric constant and to provide a flexible panel which is resistant to shorting, due to trimming, cutting or puncturing. The panel is characterized by relatively high efficiency and high light output.

Abstract: An electroluminescent device is disclosed having a layout particularly suited for plug compatibility. The device includes a polymeric substrate having a first conductor fixed to the substrate. The first conductor is spaced inwardly from the edges of the substrate in a preselected pattern to form a first electrode. A luminescent coating covers a first portion of the first electrode leaving at least one edge of the first electrode uncovered. The luminescent coating extends across a second edge of the first conductor and onto the substrate. A pair of second conductors are situated adjacent to each other on the substrate at a preselected distance. One of the pair of the second conductors covers substantially the whole of the luminescent coating and extends across the second edge onto the substrate. The other of the pair of second conductors extends along the one edge of the first conductor and on into the substrate.

Abstract: An improved phosphor admixture is provided for an electroluminescent cell or lamp which reduces the electric arc susceptibility during normal operation. Said phosphor admixture includes an electrically non-conductive, same color light-transmitting particulate solid as a means of reducing the current density of said electroluminescent cell during operation with a minimum brightness loss.

Abstract: Flat panel display device comprises a multiplicity of LED's arranged in parallel rows and parallel columns in accordance with a grid pattern. First bus conductors extend parallel to the rows and each of the LED's is electrically connected to one of the first bus conductors. Second bus conductors extend parallel to the columns and each LED is connected to one of the second bus conductors. The first and second bus conductors are on the oppositely facing surfaces of an insulating film and the LED's extend through openings in the film located on the grid pattern. Contact with the LED's is achieved by tap conductors which extend from the bus conductors to the LED's. A rigid grating is mounted against the film and has open cells which are located in accordance with the grid pattern. Each LED extends into one of the cells and the internal surfaces of the cells serve to reflect the light of the LED's towards the viewer.

Abstract: A portable containerized electroluminescent glow sheet withdrawably contained in a cartridge formed of a flexible electroluminescent sheet spirally wound and contained in a cylindrical cartridge, the luminescent sheet having its own power source contained in the cartridge to permit convenient carriage and use for lighting purposes such as reading and writing in the dark.

Abstract: A flexible electroluminescent device and a preform for use therein, in which the device includes a body of electroluminescent particles in a flexible resin sandwiched between electrode layers, one of which is substantially transparent. The substantially transparent electrode is provided as a preform comprising a transparent polymeric substrate, a transparent conductive thin-film, preferably including transmission enhancing dielectric layers, a conductive film extending along the length of a narrow portion of the transparent thin-film and a contact means which also extends along the length of the conductive film.

Abstract: A flexible electroluminescent lamp comprising a laminate of an opaque metal electrode, a flexible resin body having electroluminescent particles embedded therein and a transparent electrically conductive electrode. The transparent electrode comprises a polymeric substrate having a three layer sandwich thereon, which layers comprise a thin-film metal layer between outer dielectric layers having a relatively high index of refraction. The dielectric layers are formed to provide quarter-wavelength interference filters to result in a high degree of transmittance of the sandwich, while yet enabling the metal layer to be sufficiently thick to result in a low resistivity electrode.

Abstract: A programmable character display module for the lighted display of changeable indicia, where the display can have particular use in a switch assembly.