Abstract: According an embodiment, a display apparatus includes a display unit configured to display video corresponding to a video signal which is input, by using light which a light source emits; a determination unit configured to determine, from the video signal, presence/absence of necessity of light emission by the light source at every given time period; and a controller configured to vary and set the time period which is determined by the determination unit, in accordance with a determination result by the determination unit.

Abstract: A lamp including a first and second lamp substrate with a first and second external electrode, respectively, and a first and second internal phosphor coating, respectively, wherein the first phosphor coating is a phosphor monolayer. A method of manufacturing a lamp, including screen-printing a phosphor monolayer on a first lamp substrate; screen-printing a phosphor layer on a second lamp substrate; joining the phosphor-coated faces of the first and second lamp substrates together with a seal; and joining a first and second electrode to the uncoupled exterior faces of the first and second lamp substrates, respectively.

Abstract: The subject of the invention is a substrate for an organic light-emitting device (10) bearing a discontinuous electrode (2a to 2?c) having a metallic functional layer having an intrinsic electrical conductivity property, between a contact layer and an overlayer, the electrode having a surface resistance equal to or less than 5 ?/? for a functional layer thickness of less than 100 nm, the electrode being in the form of at least one row of electrode zones, each electrode zone having a first dimension (l) of at least 3 cm in the direction (X) of said row, the electrode zones of each row being spaced apart by what is called the intra-row distance (d1), this being equal to or less than 0.5 mm. The subject of the invention is also an organic light-emitting device (10) incorporating this electrode and the fabrication of this electrode and of this device.

Abstract: A fluorescent lamp includes a tube filled with a discharge gas and a fluorescent material, a first external electrode covering an outer edge of the tube, the first external electrode having a tetragonal cap-like shape, and a second external electrode on an outer surface of the tube, the second external electrode contacting the first external electrode.

Abstract: An apparatus for prolonging lamp lifetime by reducing luminance of a least one lamp (5) in phases includes an image signal outputting unit (1), a scaler (2), and a Microprogrammed Control Unit (MCU) (4). The MCU further includes a CPU (41), a timer (42), and a memory (43). The image signal outputting unit outputs image signals to the scaler. The MCU detects in real-time statuses of the image signals being input to the scaler. The timer records each elapsed time “Tn” during which no image signal is input to the scaler. The CPU compares the elapsed time “Tn” with preset times stored in the memory, and sends a control signal to the scaler according to the comparison result. The scaler generates PWM waves with a corresponding duty cycle according to the control signal, in order to control the luminance of the lamp. A related method for prolonging lamp lifetime is also provided.

Abstract: A display tube is provided that can improve light emission efficiency without raising a breakdown voltage. The display tube has a tubular vessel defining a discharge gas space and a pair of display electrodes for generating surface discharge along the circumferential surface of the vessel and opposing discharge traversing the inside of the vessel.

Abstract: A cold cathode tube in which an auxiliary electrode formed of an electric conductive material is provided on an outer surface of a cylindrical tube element so as to extend over substantially a half of the tube element from one end thereof to a location in the neighborhood of a center of the tube element along a longitudinal direction, and a longer one of a pair of lead wires from a power source section is connected to one of a pair of electrodes on the side where the auxiliary electrode is provided.

Abstract: A gas discharge over-voltage arrestor having a narrow tolerance range of response voltages due to the quality of a line or lines of ignition. A gas discharge over-voltage arrestor has one or more lines of ignition without additives and impurities and has a relatively narrow resistance tolerance given a defined nominal value of resistance whose tolerance range amounts to 1/2 a power of 10 in a logarithmic scale. Every line of ignition is produced by a non-contacting sputtering of carbon particles and is connected to the electrodes over its full width. A reduction in the variation of the response voltage is thereby achieved. The invention is particularly suitable for gas discharge over-voltage arrestors in a glass housing.

Abstract: A miniaturized field emitter vacuum tube device and method of making are described. The device includes a needle-shaped field emitter cathode, metal gate and electron collecting anode, which are enclosed by an insulating chamber which is evacuated. The gate electrode may be used to form the insulator-to-metal vacuum seal. Device isolation is achieved by using a highly resistive polycrystalline silicon film. A method of making a field emitter cathode tip is described in which two masking and etching steps form a pair of intersecting lines, the intersection point forming the cathode tip.

Abstract: A gas filled surge arrester which has an extremely fast response to rapidly increasing surge voltages. A pair of electrodes define a discharge gap which is held in the range of 0.02 mm to 0.25 mm. A high electron emission ability substance partially fills a cavity in each electrode. At least a pair of conductors are associated with each electrode. The conductors define a discharge gap with the opposite electrode. The gap is held in the range of 0.02 mm to 0.30 mm. A gas made up of one or more of the noble gases and hydrogen fills the arrester. The hydrogen is held in the range of 0.1% to 20% of the total volume of the gas in the arrester.

Abstract: A fluorescent lamp comprising a glass envelope contains a mixed gas of a mercury gas and at least one kind selected from neon, xenon and krypton or a mixture of said mixed gas and argon. A transparent electroconductive film is formed on the inner surface of said glass envelope; an aluminum oxide film is formed on said transparent electroconductive film, and a phosphor film is formed on the aluminum oxide film, in which an amount of the deposit of said aluminum oxide film per unit deposition area is equal to or greater than 2.6.times.10.sup.-2 mg/cm.sup.2.

Abstract: An ozonizer which comprises a flat hollow metal grounded electrode and a discharge electrode plate spaced apart therefrom by a discharge space. The discharge electrode plate includes a flat hollow dielectric member, a high voltage electrode formed on the inner surface of the dielectric member, a spacer material provided within and held in a clamped state by the dielectric member, a lead conductor provided within and held in a clamped state by the spacer material and a connector connecting the lead conductor and high voltage electrode.

Abstract: A surge arrestor is provided having two electrodes attached at opposite ends of an insulator tube. Portions of the respective electrodes extend toward each other to define a gap therebetween. At least one conductor is attached to the inner surface of the tube in the vicinity of the gap. The conductor is completely separated from the electrodes and covers a substantial portion of the inner surface of the tube.