Abstract: An optical correction layer for a light emitting apparatus having gaps in brightness at the light-emitting surface. The optical correction layer includes a plurality of optical correction regions centered over the gaps, and a plurality of optically transparent regions which overlay the remainder of the light-emitting surface. The optical correction regions include appropriately formed grooves which collect and redirect light adjacent the gap. The light is redirected to cover and effectively conceal the gap. The optically transparent regions permit light to travel through, without redirection.

Abstract: A an electron source utilizes a novel extraction grid conductor (20,40,41) to assist in focusing an electron beam emitted by the electron source. The extraction grid conductor (20,40,41) has a collimating conductor (29,31) that separate an extraction grid section (17,21,22) of the extraction grid conductor from conducting strips (26,24,32,33) that electrically connect the extraction grid section (17,21,22) to an external voltage source. The collimating conductor (29,31) creates an electric field that prevents emitted electrons from being attracted to the conducting strips (26,24,32,33) thereby maintaining the emitted electron beam in a substantially column-like configuration.

Abstract: An electron emitter formed with a layer of diamond-like carbon having a diamond bond structure with an electrically active defect at an emission site. The electrically active defect acts like a very thin electron emitter with a very low work function and improved current characteristics, including in improved saturation current.

Abstract: A field emission device (10) has a gate (17) including an opening (22) for the communication of electrons from an emitter (14) to an anode (16). A resistive layer (18) is disposed at least on the inner surface (23) of the gate (17) surrounding the opening (22). The field emission device (10) may further include an insulating, dielectric layer (19). The resistive layer (18) and the dielectric layer (19) reduce arcing between the emitter (14) and the gate (17) in the field emission device (10).

Abstract: A field emission display includes an insulating layer and an emitting layer disposed on the faceplate. A vacuum chamber is disposed between a backplane and the emitting layer and contains a getter. Apertures are defined through the insulating layer and the emitting layer for communicating contaminates from the faceplate to the vacuum chamber.

Abstract: An electron source is formed to have a redundant conductor extraction grid (17) and redundant column conductor (38, 39). Grid (17) has a plurality of conductor strips (21, 22) that overlay the column conductors (38, 39). When one conductor strip (21, 22) of the grid (17) is shorted to an underlying conductor, the non-shorted conductor remains usable. Similarly, the column conductors (38, 39) each have a plurality of column conductor strips (14, 25, 41, 42) that underlie the grid (17). When one column conductor strip (14, 25, 41, 42) is shorted to the grid (17), the non-shorted column conductor strip remains usable.

Abstract: A display device (10) positions emitters (34,36,37,38,41,42,43,44,46, and 47) equidistant from a meander conductor (26). The meander conductor (26) is formed with a pattern that facilitates such equidistant placement. The equidistant placement results in approximately equal ballast resistor values for each emitter (34,36,37,38,41,42,43,44,46, and 47).

Abstract: An image display faceplate having a plurality of recesses (dimples) formed therein for receiving discrete phosphor droplets and having a conformal metallization layer disposed thereon is provided. The phosphor system so described may be dispensed onto the faceplate without the need for multiple sequential depositions, maskings, and material removals and provides for a single step deposition of dis-similar phosphor materials of which the phosphor system is comprised.

Abstract: Manufacturing a single substrate fluorescent display including forming a first conductive layer on a substrate, depositing a first insulating layer on the first conductive layer, depositing a second conductive layer in horizontal rows on the first insulating layer, depositing a second insulating layer on the second conductive layer, and depositing an electron emitting layer of low work function material in columns on the second insulating layer so as to define a plurality of pixels at the column/row intersections. An opening is formed at each pixel extending through the layer of electron emitting material, the second insulating layer, the second conductive layer and the first insulating layer to the first conductive layer. A layer of light emitting material is deposited on the first conductive layer in the opening at each pixel.

Abstract: A fluorescent device, such as a fluorescent light or a CRT, is formed with a fluorescent screen including an optically transparent supporting substrate and a fluorescent layer deposited on the substrate. The fluorescent layer contains a plurality of particles each quantum confined by a size, generally below 100 .ANG. dictated by a specific desired color of emitted light. Approximately 50 .ANG. provides yellow light with larger particles moving toward red and smaller particles moving toward blue. A source of fluorescent stimulation, generally including electron bombardment or ultraviolet light, is mounted in spaced relation to the screen.

Abstract: A field emission device including an electron emitter and a peripherally disposed gate extraction electrode defining a free space region therebetween. The device has an insulating layer substantially isolating the gate extraction electrode from the free space region. The device prevents damaging arc discharge between the electron emitter and gate extraction electrode because of the improved insulation and provides an additional mechanism for electric field enhancement.

Abstract: Apparatus including a diamond semiconductor material bipolar transistor having associated therewith a distally disposed iso-collector. The iso-collector, when operated with a suitable voltage, provides a communicating electric field to the bipolar transistor collector which, in concert with a voltage coupled to the transistor base places the apparatus in an ON mode to induce electrons to be emitted from the collector and to be subsequently collected at the iso-collector. An iso-base is optionally, distally disposed relative to the base of the bipolar transistor.

Abstract: A light emitting diode including a carrier injection layer of semiconductor material, such as diamond, and a light emitting layer of electroluminescent organic material, such as PPV, positioned to form a diode junction therebetween. The semiconductor material being selected to have a wider bandgap than the organic material and the materials being further selected to minimize the discontinuities at the junction which would cause energy spikes.

Abstract: A single substrate, vacuum fluorescent display including a first layer of electrically conductive material positioned on a supporting substrate and a light emitting layer including phosphor positioned on the first layer. A second layer of electrically conductive material is supported on the substrate and electrically insulated from the first layer. An electron emitting layer of low work function material is positioned on the second layer and further positioned so that emitted electrons strike the light emitting layer. Since both the electron emitting and the light emitting layers are supported on the substrate, an encapsulating window is simple and easy to construct. Integrated drivers are optionally formed in the supporting substrate.

Abstract: A light emitting diode including a carrier injection layer of semiconductor material, such as diamond, and a light emitting layer of polycrystalline phosphor, such as zinc oxide, positioned to form a diode junction therebetween. The semiconductor material being selected to have a wider bandgap than the polycrystalline phosphor and the materials being further selected to minimize the discontinuities at the junction which would cause energy spikes.

Abstract: A field emission device with an emitter on a first layer of material and an anode on a second layer of material, separated by a predetermined distance, with a sealed region therebetween. Changes in pressure external to the sealed region producing movement and consequent changes in the predetermined distance between the first and second layers, which change in distance produces a change in current between the emitter and anode. The change in current representing the change in differential pressure.

Abstract: A display addressing method applied in conjunction with an array of cold cathode field emission micro-emitters employs a row-by-row addressing technique in concert with controlled constant current sources connected simultaneously to each column of the array of emitters to provide a novel addressing scheme which yields an improvement in cathodoluminescent display brightness on the order of a full order of magnitude over that of the prior art.

Abstract: Depositing a diamond film on an electron emitting tip including disposing hydrocarbon and etchant reactant gasses together with the tip in a reaction vessel and providing an external voltage source such that electrons, emitted from the electron emitter, disassociate hydrocarbon constituents of the reactant gas. The constituents accelerate toward and are deposited onto the tip and are selectively etched by the etchant constituents such that only the diamond form of the deposited carbon remains.

Abstract: Electron devices employing electron sources including a material having a surface exhibiting a very low/negative electron affinity such as, for example, the 111 crystallographic plane of type II-B diamond. Electron sources with geometric discontinuities exhibiting radii of curvature of greater than approximately 1000.ANG. are provided which substantially improve electron emission levels and relax tip/edge feature requirements. Electron devices employing such electron sources are described including image generation electron devices, light source electron devices, and information signal amplifier electron devices.

Abstract: Cathodoluminescent display apparatus employing an electron source including a plurality of diamond crystallites. Image display apparatus employing an array of picture elements, each picture element having associated therewith an electron source including electron emitting diamond crystallites, is realized as a preferred embodiment.