Abstract:
The invention concerns a glass spacer, obtained by a drawing process, having a substantially polygonal support cross-section, having at least a rectilinear support surface inscribed in a rectangle having dimensions a, b, and the spacer rising over a height l, the spacer dimensions verifying the following relationships: a
Abstract:
An electron source, though it uses spacers (9), controls electron-emitting elements to uniformly emit electrons. A plurality of row wires (8) intersect with a plurality of column wires (6) on a substrate (1). An electron-emitting element consisting of element electrodes (2, 3), conductive film (4) and an electron emitter (5) is provided at each intersection of the row wires (8) and column wires (6). Spacers (9) are placed on some of the row wires (8). The column wires (6) are connected with regulated current sources (221a, 221b, 221c) capable of supplying desired current. The row wires (8) are connected with voltage source means that includes a voltage source (223) and a switching circuit (222) for selecting the row wires (8) while sequentially scanning them.
Abstract:
A coating material, for coating a spacer structure (300) of a flat panel display, having specific resistivity and secondary emission characteristics is disclosed. The coating material is characterized by formula Psc > 100(Psw) and r
Abstract:
The invention relates to a lighting device comprising a lamp (1) comprising a burner (10) with an ionizable filling and an amount of mercury contained herein, having at least one mercury absorbing/adsorbing and/or blocking means (40) located outside the burner for the fixation of mercury in case of an explosion of the burner.
Abstract:
The present invention provides a spacer assembly which is tailored to provide a secondary electron emission coefficient of approximately 1 for the spacer assembly when the spacer assembly is subjected to flat panel display operating voltages. The present invention further provides a spacer assembly which accomplishes the above achievement and which does not degrade severely when subjected to electron bombardment. The present invention further provides a spacer assembly which accomplishes both of the above-listed achievements and which does not significantly contribute to contamination of the vacuum environment of the flat panel display or be susceptible to contamination that may evolve within the tube. Specifically, in one embodiment, the present invention is comprised of a spacer structure which has a specific secondary electron emission coefficient function associated therewith. The material comprising the spacer structure is tailored to provide a secondary electron emission coefficient of approximately 1 for the spacer assembly when the spacer assembly is subjected to flat panel display operating voltages.
Abstract:
An air-tight device having an inside pressure lower than an outside pressure, comprising a plurality of plate-shaped spacers (15) which suppress the deformation of an inside form and getter materials (9) for increasing the degree of vacuum each of which is located in a space between the two plate-shaped spacers (15), whereby gas produced inside an envelope is adsorbed immediately by the getter materials (9) and the degree of vacuum inside the envelope can be maintained satisfactorily.
Abstract:
A shroud adapted, in use, to shroud a metallic end cap disposed at one end of a fragment retention lamp, said shroud comprising a first body portion and a second body portion; wherein said first body portion covers in use an external wall of said end cap, and said second body portion in use covers an end face of said end cap and incorporates one or more orifices through which, in use, an electrical contact pin or pins can protrude from said shroud.
Abstract:
The present invention provides a spacer assembly (100) which is tailored to provide a secondary electron emission coefficient of approximately 1 for the spacer assembly (100) when the spacer assembly (100) is subjected to flat panel display operating voltages. The present invention further provides a spacer assembly (100) which accomplishes the above achievement and which does not degrade severely when subjected to electron bombardment. The present invention further provides a spacer assembly (100) which accomplishes both of the above-listed achievements and which does not significantly contribute to contamination of the vacuum environment of the flat panel display or be susceptible to contamination that may evolve within the tube. Specifically, in one embodiment, the present invention is comprised of a spacer structure (102) which has a specific secondary electron emission coefficient function associated therewith. The material comprising the spacer structure (102) is tailored to provide a secondary electron emission coefficient of approximately 1 for the spacer assembly (100) when the spacer assembly (100) is subjected to flat panel display operating voltages.
Abstract:
A field emission display (100) includes a cathode assembly (102), an anode plate (104), and a spacer (108), which extends between the cathode assembly (102) and the anode plate (104). The spacer (108) is comprised of a spacer material having a dielectric constant less than 100. A discharging period neutralizes positive electrical charge (244) and renders the spacer (108) invisible to a viewer of the field emission display (100). Operating a field emission display (100) to render a spacer (108) invisible by providing a cathode assembly (102), an anode plate (104), and a spacer (108) comprised of a spacer material with a dielectric constant less than 100 and neutralizing positive electrical charge (244) on spacer (108).