Abstract: An object of the present invention is to provide a cathode body having a high intensity, a high efficiency, and a long life. The cathode body of the present invention is manufactured by forming, on a cylindrical cup formed of a metal alloy containing lanthanum oxide and having a high thermal conductivity, a LaB6 film using a magnetron sputtering apparatus capable of sputtering at a low electron temperature.

Abstract: The orientation of fluorescent lamps is detected in a manufacturing method for a direct backlight unit that alternates orientations of adjacent fluorescent lamps. In a preparation step of the manufacturing method for the backlight unit of the present invention, a plurality of fluorescent lamps are prepared. In each of the fluorescent lamps, a length (a1) from a first sealed portion of a glass bulb (26) to a non-phosphor layer (32) area is shorter than a length (a2) from a second sealed portion to a non-phosphor layer (32) area (a1<a2). In a detection step, the difference between the lengths is detected with use of a sensor. In an installation step, the fluorescent lamps are arranged with use of the detection results so that the first and second ends alternate on a same side of a housing.

Abstract: The invention relates to an electrode having a nano-hollow array on the surface thereof, the nano-hollow array comprising a plurality of nano-pores or nano-balls, each pore having a diameter of less than 500 nm, formed by a process comprising depositing a uniform metal film on the electrode structure surface at a rate of 2 ? per second or less, annealing the metal film under rapid anneal conditions at a temperature within about 100 degrees of the melting point of the metal film and without subjecting the metal film to a temperature ramp-up to create metal droplets, and anodizing and over-anodizing the metal droplets in the presence of an anodization agent for the metal at from 20 to 200 volts at 0.1 to 2 amps to create nano-pores in the metal droplets or nano-balls to, creating increased surface area and increased electric field around the electrode which enhances speed of fill gas ionization.

Abstract: Electron emissive compositions comprising a barium neodymium oxide are described. These compositions may be applied to electrodes such that electron emission is facilitated. Methods of manufacturing emissive electrodes comprising a barium neodymium oxide are also described. Various discharge lamps employing such electrodes are described as well.

Abstract: A fluorescent tube 30 of the present invention includes a glass tube 31 and electrodes 32 opposed to each other on both end portions 31a of the glass tube 31, characterized in that the electrode 32 has a closed-end hollow shape opened on the opposite side from the end portion 31a of the glass tube 31, and the electrode 32 constituting the closed-end hollow shape has an inner surface 35 configured to be tapered toward the end portion 31a of the glass tube 31. With this configuration, it is possible to contain accelerated electrons not only in the bottom face 33 of the electrode 32 but also in the inner surface 35 of the electrode 32, thereby suppressing sputtering. Consequently, it is possible to increase the life of the fluorescent tube 30.

Abstract: The disclosed subject matter includes a fluorescent lamp and particularly a cold cathode fluorescent lamp that can be employed as a light source for a LCD backlight unit for a television, a computer, a display, and the like. The fluorescent lamp can include a couple of electrode units located opposite to each other at each end of a tube, a couple of welding beads sealing both the tube and the couple of electrode units, and a filler gas located in the tube. Each of the electrode units can include an emitter electrode that is configured with a crystalline silicon carbide material having an electrical conductivity and including a concave portion formed thereon. The electrode units can prevent blackening on an inner surface of the tube by avoiding the occurrence of spattering. Thus, the fluorescent lamp using the electrode units can enjoy a long life, high reliability, easy manufacture, and the like.

Abstract: A discharge lamp in which fluctuation of the arc when the lamp starts and in which devitrification and damage of the arc tube are prevented, so that light intensity can be kept uniform over a long time is achieved by the cathode having a tapering part with a diameter which decreases in the direction to the tip that is formed with an area with different diameters extending around the tapering part in the peripheral direction which has concave-convex parts with groups of convex parts which are located next to one another in the axial direction of the cathode, the concave-convex parts in longitudinal cross section being arranged such that corner points of each convex part are located inside of an edge line of the tapering part, and an envelope curve which connects the corner points is convex with respect to the center line of the cathode.

Abstract: A discharge bulb is provided. The discharge bulb includes an arc tube, a glass shroud cylindrically surrounding the arc tube, and an insulated plug fixedly supporting an end portion of the glass shroud. The arc tube includes a light generating portion having a discharge space therein, a first pinch seal portion and a second pinch seal portion disposed on respective sides of the light generating portion, a first electrode rod protruding into the discharge space from the first pinch seal portion, and a second electrode rod protruding into the discharge space from the second pinch seal portion so as to be opposed to the first electrode rod. The discharge space contains a rare gas and a metal halide, but does not contain mercury. The first electrode is made of thoriated tungsten, and the second electrode rod is made of pure tungsten.

Abstract: It is possible to enhance the luminance of a cold-cathode type discharge lamp and to contribute to a prolongation of service life thereof. A discharge lamp 1 is provided with an electrode 3 having a cup 4 with such a shape that a bottom is provided at each of both opposed ends of the glass tube 2. The cup 4 is connected to a lead-in wire 8 which is inserted through the end of the glass tube 2 and held thereby. The collision-preventing ring 5 covering an end surface of the cup 4 is provided to the open end 4a of the cup 4. The porous tungsten disk 6 impregnated with a ternary metal oxide composed of barium (Ba), aluminum (Al), and calcium (Ca) as an electron emission material is provided at a bottom in an inside of the cup 4.

Abstract: It is an object of the present invention to provide a lighting system having favorable luminance uniformity in a light-emitting region when the lighting system has large area. According to one feature of the invention, a lighting system comprises a first electrode, a second electrode, a layer containing a light-emitting substance formed between the first electrode and the second electrode, an insulating layer which is formed over a substrate in a grid form and contains a fluorescence substance, and a wiring formed over the insulating layer. The insulating layer and the wiring are covered with the first electrode so that the first electrode and the wiring are in contact with each other.

Abstract: A flat fluorescent lamp is provided. In the flat fluorescent lamp, a discharge gas and a fluorescent material are disposed inside a chamber; first and second electrodes covered by a dielectric layer are disposed at the bottom of the chamber; first protruding points are disposed on a first side of each electrode; and second protruding points are disposed on a second side of each electrode. In each electrode, the first and the second protruding points are alternately laid. The first light-emitting region formed between the first protruding points and the first and second electrodes corresponding thereto and the second light-emitting region formed between the second protruding points and the first and second electrodes corresponding thereto are one of the entirely not overlapping and partially overlapping. Further, a driving method for the flat fluorescent lamp and a liquid crystal display device having the flat fluorescent lamp are provided.

Abstract: A dual-purpose light-penetrating and light-emitting device is provided. The dual-purpose light-penetrating and light-emitting device includes a first transparent substrate, a spacing sidewall, a second transparent substrate, and a light-penetrative illuminating structure. The spacing sidewall is disposed between the first transparent substrate and the second transparent substrate for configuring a hermetic space. The light-penetrative illuminating structure includes a cathode structure, an anode structure, a low pressure gas layer, and a patterned fluorescent layer. The low pressure gas layer is accommodated in the hermetic space. The cathode structure and the anode structure are oppositely disposed on the first transparent substrate and the second transparent substrate, respectively. The patterned fluorescent layer is positioned between the cathode structure and the anode structure, for allowing an ambient natural light penetrating therethrough.

Abstract: The invention relates to a metal halide lamp comprising a ceramic discharge vessel (21), characterized in that a molybdenum leadthrough (11) is connected to a cermet stopper (15) via an intermetal interface gradient (20).

Abstract: An electrode (1) for cold cathode tube of the present invention includes a cylindrical sidewall portion (2), a bottom portion (3) provided at one end of the cylindrical sidewall portion, and an opening portion (4) provided at the other end of the cylindrical sidewall portion. The electrode is formed of a sintered body of a high melting point metal (W, Nb, Ta, Mo or Re). When an overall length of the electrode is L, an inside diameter of the cylindrical sidewall portion at a position of L/2 is d1, an inside diameter of the bottom portion is d2, and an arc of an inner surface (5) of the cylindrical sidewall portion connecting a portion of the inside diameter d1 and a portion of the inside diameter d2 is R, the electrode satisfies the following condition; L?6 [mm], d2>d1, R?20 [mm].

Abstract: A flat light source including a first substrate, a second substrate, a sealant, several sets of dielectric pattern and a phosphor layer is provided. The first substrate has electrodes thereon. The sealant is disposed between the first and second substrates to form a space between the first and second substrates and the sealant. These sets of dielectric pattern are formed in the space between the first and second substrates. Each set of dielectric pattern has at least two dielectric strips, and each dielectric strip covers one of the electrodes correspondingly. Each dielectric strip has a top surface and two side surfaces, and the top surface has an uneven contour. The phosphor layer is disposed between the two dielectric strips of each set of dielectric pattern, and the phosphor layer is further disposed on the top surface of the dielectric strips.

Abstract: Disclosed is a fluorescent lamp having ceramic-glass composite electrodes, which has a higher dielectric constant, higher secondary electron emission, and higher polarization under the same electric field, and thus enables the movement of many more electrons and cations, resulting in high brightness. The fluorescent lamp having ceramic-glass composite electrodes includes a glass tube, which has a phosphor applied on the inner surface thereof and is filled with a mixture of inert gas and metal vapor, both ends of which are sealed; and hollow cylindrical electrodes provided at both ends of the glass tube, each of the hollow cylindrical electrodes having a stepped portion between a central portion thereof and an end portion thereof, and being formed of a ceramic-glass composite. As the material for the electrode, a composite, including a CaO—MgO—SrO—ZrO2—TiO2 ceramic composition and glass frit, is used.

Abstract: A lamp including a hermetic tube and a filament configured to radiate thermal energy within the tube. Further, the filament extends along a length direction of the tube and is spaced apart from an inner wall of the tube.

Abstract: A liquid crystal display is provided with a cold-cathode fluorescent lamp including a glass mantle tube having an inside surface coated with a fluorescent film, cup-shaped electrodes disposed in opposite end parts of the mantle tube with their open ends opening into a discharge region in the mantle tube. A discharge inducing ITO film is formed in a part near each of the cup-shaped electrodes of the inside surface of the mantle tube. Cosmic rays from space penetrated the transparent glass tube and the fluorescent film and received by the discharge inducing ITO films activate free electrons moving in the glass tube and, at the same time, electrons emitted by the cup-shaped electrodes when a voltage is applied across the cup-shaped electrodes induces an electric discharge to make the cold-cathode fluorescent lamp light instantly.

Abstract: The present invention provides a light-emitting device, including: a pixel region provided on a substrate and including a blue pixel region, a green pixel region, and a red pixel region which correspond to lights of three primary colors of blue, green and red light, respectively, the pixel region including: a thin-film transistor having a source electrode, a drain electrode, a gate electrode, a gate insulating film, and an active layer; a light-emitting layer; and a lower electrode and a counter electrode for sandwiching the light-emitting layer therebetween, wherein the active layer includes an oxide; the drain electrode is electrically connected with a part of the light-emitting layer; and the thin-film transistor is arranged in a region other than the blue pixel region on the substrate.

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: Methods and apparatus are provided for increasing the life of a fluorescent lamp suitable for use as a backlight in an avionics or other liquid crystal display (LCD). The apparatus includes a channel configured confine a vaporous material that produces an ultra-violet light when electrically excited. A layer of light-emitting material is disposed within at least a portion of the channel is responsive to the ultra-violet light to produce the visible light emitted from the lamp. An electrode assembly that electrically excites the vaporous material includes a first post, a second post, a conductive filament suspended between the first post and the second post and having a tail portion extending therebeyond, and a benign insulating material such as glass frit substantially covering the tail portion to prevent radio frequency (RF) emissions from the tail portion of the filament.

Abstract: A compound body has a first body part (15) made of glass and a mechanical connection (20, 60) which is melted on the first body part (15) and contains aluminum.

Abstract: A hot-cathode fluorescent lamp includes a pair of filament coils (4) at the respective ends of a glass bulb. Each filament coil (4) has a coiled portion (4a) coated with an electron emissive material, a first lead portion (4b) extending from one end of the coiled portion (4a), and a second lead portion (4c) extending from another end of the coiled portion (4a). The first lead portion (4b) and the second lead portion (4c) are connected to lead-in wires inserted into the glass bulb via connecting members (5a, 5b). At least one insulating member (11a or 11b) is provided between closest edges of the connecting members (5a, 5b) to each other. The provision of the insulating member prevents a short circuit occurring between the closest edges of the plate-shaped connecting members during lighting. Occurrence of such a short circuit would cause lighting to start without the coil portion being sufficiently pre-heated, which results in excessive sputtering of the electron emissive material to shorten the lamp life.

Abstract: A cathodoluminescent light source has a field-emission cathode serving as a source of electrons, an anode having a specular light-reflecting surface, and an electron-excited phosphor applied to the specular light-reflecting anode surface. The cathode and anode are enclosed in an evacuated housing having a transparent surface, so as to let the electron-excited phosphor on the anode surface be irradiated with an electron beam, and to let the luminous flux resulting from the process of cathodoluminescence to emerge.

Abstract: A flat fluorescent lamp which can be used with an LCD display includes a plurality of discharge channels. Pairs of electrodes are formed on both ends of the discharge channels. Each of the plurality of channels has an emitting section at the middle, and electrode sections on both ends thereof. A width of the electrode sections is the same as that of the emitting section. However, a height of the electrode sections is greater than a height of the emitting section, resulting in the electrode section having a cross-sectional area that is larger than that of the emitting section.

Abstract: An electron emissive material comprises an alkaline earth metal halide composition and operable to emit electrons on excitation. A lamp including an envelope, an electrode including an alkaline earth metal halide electron emissive material and a discharge material, is also disclosed.

Abstract: An electrode member for a cold cathode fluorescent lamp which is excellent in sputtering resistance and a discharge property, and which is excellent in productivity, a method of producing the electrode member, and a cold cathode fluorescent lamp are provided. A cold cathode fluorescent lamp 1 includes a glass tube 20 and electrode members 10 arranged in the tube 20. Each of the electrode members 10 includes an electrode main body portion 11 having a bottomed tubular shape and a lead portion 12 arranged at a sealing portion of the glass tube 20, and the portions 11 and 12 are integrally formed. The electrode members 10 contain at least one type of element selected from Ti, Hf, Zr, V, Nb, Mo, W, Sr, Ba, B, Th, Al, Y, Mg, In, Ca, Sc, Ga, Ge, Ag, Rh, Ta, and rare earth elements (other than Y and Sc) in a total amount in the range of 0.01 to 5.0 percent by mass, and the balance composed of a Fe—Ni alloy and impurities.

Abstract: A high pressure discharge lamp can be used in a vehicle lighting device as a light source in place of a halogen lamp, and can be driven with a reduced starting voltage while being miniaturized. A gas is filled in a space between an arc tube and an outer tube of the high pressure discharge lamp, the gas being capable of dielectric barrier discharge, to reduce the starting voltage. A metal conductor is arranged in the space between the arc tube and the outer tube to stabilize the starting voltage and perform other functions. The metal conductor can also serve as a lead line. Accordingly, high voltage portions of the lamp are not exposed outside of the outer tube. This can reduce the entire size of the high pressure discharge lamp such that a housing for a headlight using a halogen lamp can be used for this type of high pressure discharge lamp.

Abstract: A method for manufacturing a cold cathode fluorescent lamp (CCFL) is disclosed. The CCFL includes a light transmitting shell and an electrode disposed at one end of the light transmitting shell. The method includes the steps of exhausting a gas existing inside the light transmitting shell via a vent of the light transmitting shell, charging at least one inert gas into the light transmitting shell, and removing an amalgam, which is initially disposed in a gas adjusting instrument, into a temporal region of the light transmitting shell after the step of exhausting.

Abstract: A light source apparatus (8) includes a rear plate (80), a front plate formed with an anode layer (82), and a cathode (81) interposed therebetween. The cathode includes a plurality of electrically conductive carriers (812) and a plurality of field emitters (816) formed thereon. The field emitters are uniformly distributed on anode-facing surfaces of the conductive carriers. Preferably, the field emitters extend radially outwardly from the corresponding conductive carriers. The conductive carriers are parallel with each other, and are located substantially on a common plane. Each of the conductive carriers can be connected with a pulling device arranged at least one end thereof, and an example of the pulling device is a spring. The conductive carriers may be cylindrical, prism-shaped or polyhedral.

Abstract: There is disclosed an article of manufacture comprising a Plasma-Disc™ for use in a plasma display panel (PDP) device having one or more substrates and a multiplicity of pixels or sub-pixels. Each pixel or sub-pixel is defined by a hollow Plasma-Disc™ filled with an ionizable gas. The Plasma-disc has at least two opposing flat sides such as a flat top and flat bottom or a flat rear and flat front. One or more other sides or edges may also be flat. Two or more electrodes are in electrical contact with each Plasma-disc. A flat base side of the Plasma-disc shell is in contact with a substrate and each electrode is in electrical contact with a flat side of the Plasma-disc. The PDP may also include inorganic and organic luminescent materials that are excited by the gas discharge within each Plasma-disc. The luminescent material may be located on an exterior and/or interior surface of the Plasma-disc or incorporated into the shell of the Plasma-disc. Up-conversion and down-conversion materials may be used.

Abstract: An electrode (1) for cold cathode tube has a cylindrical sidewall portion (2), a bottom portion (3) provided at one end of the sidewall portion, and an opening portion (4) provided at the other end of the sidewall portion. The sidewall portion and the bottom portion are made of tungsten. The tungsten has fibrous crystalline structure extending substantially perpendicularly to a direction of thickness of the sidewall portion or the bottom portion. The thickness T of the sidewall portion or the bottom portion and an average width W of the fibrous crystalline structures in the direction of the thickness satisfy the following relational expression: 0.003?W/T?0.07.

Abstract: The present invention relates to an ultraviolet lamp comprising a glass shell and an electrode fixed on one or more ends of the lamp, where each electrode is a coiled wire with a hollow conical shape. The hollowed conical structure of the electrode reduces the thermal capacity of the electrode as compared with other types of electrodes of the same mass, makes the lamp start quicker, and decreases the emission loss of the electrode when the glow discharge is transformed to an arc discharge. The lamp of the present invention has a wide electrode surface area, such that the loads on each point of the emissive surface are equally distributed, thus decreasing the electron scattering and dispersion, and allowing the lamp to resist the impact from positive ions. Due to the shape and structure of the electrode, the lamp of the present invention has increased efficiency and emitting ability, and allows for a longer lasting lamp.

Abstract: An electron emissive material includes a composition including a metal oxide, where the metal oxide is at least one oxide of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Hf, or Zr, or any combinations thereof, where the metal oxide is present in a quantity that ranges from about 20% to 100% by weight of the total composition, where the composition is operable to emit electrons in a discharge medium in response to a thermal excitation, wherein the discharge medium under steady state operating conditions producing a total vapor pressure of less than about 2×105 Pa. A lamp including an envelope, an electrode including an electron emissive material and a discharge medium, is also disclosed.

Abstract: A plasma display panel includes a pair of substrates facing each other, barrier ribs defining discharge cells between the pair of substrates, sustain electrodes between the pair of substrates, the sustain electrodes including second bus electrodes along a first direction, the second bus electrodes being on the barrier ribs, scan electrodes between the pair of substrates, the scan electrodes including first bus electrodes along the first direction, the first bus electrodes being positioned between adjacent second bus electrodes, address electrodes between the pair of substrates, the address, scan, and sustain electrodes being configured to generate discharge in the discharge cells, and phosphors in the discharge cells, the phosphors being configured to emit light by the discharge.

Abstract: An external electrode lamp (2) includes a glass discharge container (4) having a discharge medium enclosed therein, and first and second external electrodes (6 and 8) provided external to the discharge container. Since the surface area of the first external electrode is larger than that of the second external electrode, the capacitance of a first capacitor constituted from the first external electrode and a first dielectric part including a portion of the discharge container between the first external electrode and the discharge medium is larger than that of a second capacitor constituted from the second external electrode and a portion of the discharge container between the second external electrode and the discharge medium.

Abstract: A conductive composition and applications thereof are provided. The conductive composition comprises metal powder and glass powder. The diameter of metal powder ranges from 1 ?m to 3 ?m. The diameter of glass powder ranges from 0.5 ?m to 1 ?m. Weight percentage of the metal powder is from 60% to 98%. The conductive composition could be applied to manufacture the electrodes of a flat lamp.

Abstract: Light source and backlight module utilizing the same. The light source includes a hollow glass tube and an electrode disposed therein. The electrode comprises a bent surface, increasing surface area, thereby increasing light emission efficiency and reducing temperature.

Abstract: A cathode plate including a substrate, a cathode structure, a gate structure and emission sources is provided. The cathode structure and the gate structure are disposed on the substrate. The emission sources are arranged regularly on the cathode structure. A field emission flat lamp including said cathode plate, an anode plate and a sealant is provided. The sealant is disposed between and seals the cathode plate and the anode plate. Since the volume of each emission source is small, the bubbles resided inside the emission sources can be reduced, such that the qualities of the field emission flat lamp and the cathode plate thereof can be improved.

Abstract: A cold-cathode fluorescent lamp including a glass bulb and a pair of electrodes which are cylindrical and respectively inserted in two ends of the glass bulb. Two end portions of the glass bulb are substantially circular in transverse cross section, the two end portions respectively corresponding to the inserted pair of electrodes in length. At least part of a middle portion of the glass bulb is flat in transverse cross section, the middle portion corresponding to a space in the glass bulb between the pair of electrodes.

Abstract: In one embodiment, when the current density at the cathode is less than 0.2 mA/mm2, cathode sputtering is avoided or reduced to such an extent that the life time of the CCFL is not significantly adversely affected. In another embodiment, the internal diameter (ID) of the CCFL tube is within the range of 3 to 16 mm. Preferably, the distance between the anode and cathode is within a range of about 200˜1000 times of the internal diameter of the CCFL tube, and the distances between at least one section of the CCFL tube and two adjacent sections of the CCFL tube is less than about 5 times an outside diameter of the CCFL tube. Preferably, the efficiency of the CCFL is not less than about 55 lm/W.

Abstract: A high pressure discharge lamp, in which an anode and a cathode are disposed opposite each other in a bulb, achieves a long service life due to thorium (Th) being stably supplied to the cathode tip for a long time after lamp operation has been commence since the formation of the flicker phenomenon is suppressed over a long time due to the cathode being made of tungsten which contains thorium oxide on a surface space from the cathode tip, a carbide layer of tungsten carbide is formed and the cathode being bordered by an emitter containing body of tungsten which contains thorium dioxide, and a carbide layer of tungsten carbide being formed at least in a region bordering the cathode.

Abstract: An electron emission device includes: a substrate; first and second electrodes insulated from each other and having a predetermined shape on the substrate, at least one of the first and second electrodes being formed with a fine mesh pattern; and an electron emission region formed on the substrate and connected to one of the first and second electrodes. Furthermore, an electron emission display includes: first and second substrate arranged opposite to each other; first and second electrodes insulated from each other and having a predetermined shape on the first substrate, at least one of the first and second electrodes being formed with a fine mesh pattern; an electron emission region formed on the first substrate and connected to one of the first and second electrodes; and an image displaying portion including an anode electrode and a fluorescent layer arranged on the second substrate.

Abstract: Cylindrical electrodes (7) are arranged opposite to each other in an internal space (5) of a hermetically sealed glass tube (2) which is filled with a rare gas and a mercury gas. The cylindrical electrodes (7) is mainly composed of nickel (Ni), and one or both of yttrium (Y) and yttrium oxide (YOx) are dispersed in the cylindrical electrodes (7).

Abstract: A cold cathode fluorescent lamp is disclosed. The cold cathode fluorescent lamp includes a sealed glass tube provided with a fluorescent layer on an inner surface thereof, inner electrodes provided in opposite ends of the glass tube, and outer electrodes to apply an electric field to the inner electrodes. Each of the inner electrodes includes a first electrode formed in a cup shape and a second electrode provided inside the first electrode and formed in a coil shape.

Abstract: A discharge tube array includes a plurality of elongated discharge tubes (10) each including an internal fluorescent layer. The discharge tubes (10), arranged in parallel, are sandwiched between paired substrates (20, 21). One of the substrate (20) is provided with a plurality of display electrodes (30) each extending across the discharge tubes (10). A plurality of connection terminals (14) are formed on the tube wall of the outermost one of the discharge tubes (10), to be connected with the display electrodes (30). The connection terminals (14) are primarily for electrical connection with the display electrodes of another discharge tube array.

Abstract: There are provided cold cathode fluorescent lamp with high quality and high reliability and method of manufacturing the cold cathode fluorescent lamp, the cold cathode fluorescent lamp making it possible to reduce the amount of a portion on which a sputter phenomenon occurs thereby reducing the discharge start-up time in the cold cathode fluorescent lamp, and to maintain stable discharge for a long period of time thereby improving the dark start-up characteristic as well as high luminance and long life properties.

Abstract: The present invention provides a flat fluorescent lamp. The flat fluorescent lamp comprises a single plate. Consequently, the flat fluorescent lamp is structurally safe, brightness of the flat fluorescent lamp is high, and efficiency of the flat fluorescent lamp is also high without the provision of other additional optical components. The present invention also provides a method of manufacturing such a flat fluorescent lamp.

Abstract: A PDP having an opposing electrode structure including first and second substrates facing each other. A space between the first and second substrates is divided into discharge cells. Address electrodes extend in a first direction between the first and second substrates, and first and second electrodes extend in a second direction intersecting the first direction while being spaced apart from the address electrodes. At least one of the address electrodes or the first and second electrodes has a protruding portion that protrudes toward the center of each discharge cell. The protruding portions help reduce the discharge gap which in turn reduces the discharge firing voltage. Expansion portions formed as parts of the first and second electrodes increase the discharge gap used by the sustain discharge and lead to an improved luminescence efficiency.

Abstract: A light source device includes a plurality of juxtaposed discharge tubes, each of which includes an internal electrode at least at one end, is made of transmissive material, has a phosphor layer formed at the inner side of the discharge tube, and is filled with a discharge gas containing xenon, an external electrode which is conductive and flat-shaped, is spaced from the plurality of discharge tubes by a specific distance, and is connected electrically to the grounding potential, and a conductive member electrically configured to connect the outer surface of all of the plurality of discharge tubes to the external electrode.