Supporting And/or Spacing Elements Patents (Class 313/292)
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Patent number: 7780491Abstract: The invention relates to a process for manufacturing plasma display panel and a substrate holder, preventing an occurrence of dust giving an unfavorable effect in a forming process of a film on a substrate of a plasma display panel in a film forming apparatus. When forming the film, a substrate (3) and a dummy substrate (35) are held by a first substrate holder (31) composed of a supporter sustaining underneath the substrate and a restrictor restricting a position of the substrates (3) in a plane direction, and a second substrate holder (32) sustaining the first substrate holder (31).Type: GrantFiled: December 18, 2006Date of Patent: August 24, 2010Assignee: Panasonic CorporationInventors: Michihiko Takase, Jun Shinozaki, Hiroyuki Furukawa
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Patent number: 7771085Abstract: A lighting device comprising: a light emitting diode lighting panel having first and second opposing surfaces; light emitting diodes at a periphery of light emitting diode lighting panel for emitting light through the first surface; a reflective surface at the second surface of the light emitting diode lighting panel; and a power supply unit connected to the light emitting diode panel, the power supply having first and second ends, and electrical circuitry for converting alternating current to direct current between the first and second ends, wherein the first end is for insertion into the a socket.Type: GrantFiled: January 15, 2008Date of Patent: August 10, 2010Inventor: Steven Kim
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Patent number: 7772754Abstract: An electron emission display is provided to prevent electron beams around the spacers from being distorted and to prevent arc discharging due to the spacers. The electron emission display includes first and second substrates facing each other to form a vacuum vessel, an electron emission unit provided on the first substrate, a light emission unit provided on the second substrate, and a plurality of spacers disposed between the first and the second substrates. Each spacer has a spacer body with a surface roughness, a resistance layer placed on a lateral side of the spacer body, and a flattening layer covering the resistance layer. The flattening layer has a thickness larger than the thickness of the resistance layer and a surface roughness smaller than the surface roughness of the spacer body.Type: GrantFiled: January 30, 2007Date of Patent: August 10, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Jae-Hoon Lee, Hyeong-Rae Seon, Cheol-Hyeon Chang
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Patent number: 7772758Abstract: An electron emission display includes first and second substrates opposing each other, an electron emission unit that is provided on an inner surface of the first substrate, a light emission unit that is provided on an inner surface of the second substrate, and a spacer that is located between the first and second substrate. The spacer includes a main body containing a material whose temperature-coefficient-of-resistance is less than or equal to 3%/° C.Type: GrantFiled: October 12, 2007Date of Patent: August 10, 2010Assignee: Samsung SDI Co., Ltd.Inventor: Seung-Hee Jeong
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Patent number: 7767290Abstract: A slurry composition for forming a double-layered barrier rib of a plasma display panel is provided. The slurry composition for barrier ribs comprises about 100 parts by weight of a mixture comprising a glass powder and a filler; about 20 to 50 parts by weight of a solvent; about 0.01 to 2 parts by weight of a dispersing agent; about 1 to 10 parts by weight of a plasticizer; and about 10 to 20 parts by weight of a binder. A green sheet employing such a slurry compositions is disclosed as is methods of manufacturing a double layered barrier rib using such slurry compositions to form a green sheet.Type: GrantFiled: August 21, 2006Date of Patent: August 3, 2010Assignee: LG Electronics Inc.Inventors: Yong Ho Kim, Eun Tae Lee
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Patent number: 7768200Abstract: The present invention relates to a plasma display panel. The plasma display panel includes black matrices formed in a front substrate, and first barrier ribs, which are formed opposite to the black matrices on a rear substrate and partition pixel cells. The first barrier ribs have a width wider than that of the black matrices. Even if misalignment occurs during a process of adhering substrates, the black matrices do not protrude into discharge spaces. Therefore, the defective ratio can be lowered and the picture quality can be improved.Type: GrantFiled: January 30, 2006Date of Patent: August 3, 2010Assignee: LG Electronics Inc.Inventor: Tae Su Hwang
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Patent number: 7749556Abstract: A method for manufacturing a field emission substrate is disclosed. The method includes the following steps: providing a substrate having a conductive layer; forming a hydrophobic layer on the conduction layer; patterning the hydrophobic layer; and removing the hydrophobic layer from the surface of the conductive layer so that the formed layer of electron-emitting materials can contact the surface of the conductive layer. The patterned hydrophobic layer can include plural bumps, and the pitches between the neighboring bumps are in a range of 1 ?m to 500 ?m. By way of the steps illustrated above, the emitting layer on the substrate can be made easily and arranged accurately. Hence, the electrons can be emitted homogeneously.Type: GrantFiled: June 30, 2006Date of Patent: July 6, 2010Assignees: Tatung Company, Industrial Technology Research InstituteInventors: Hung-Yung Li, Tsuey-May Yin, Tsai-Ling Ho
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Patent number: 7741778Abstract: The present invention aims to ensure luminosity while improving evacuation characteristics in a plasma display panel. First ribs (112) that separate a plurality of cells from each other and second ribs (113) are formed in stripe patterns so as to intersect with each other on a surface of a first substrate (107), a surface of a second substrate opposes tops of the first ribs, and a height of the ribs at intersections (112b) of the first and second ribs intersect is lower than other parts of the first ribs (112a).Type: GrantFiled: November 30, 2006Date of Patent: June 22, 2010Assignee: Panasonic CorporationInventors: Yuusuke Takada, Nobuaki Nagao, Toru Ando, Masaki Nishimura, Ryuichi Murai, Hidetaka Higashino
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Patent number: 7737620Abstract: A light emission device and a display device having the light emission device are provided. The light emission device includes: a first substrate and a second substrate facing the first substrate; a plurality of first electrodes and a plurality of second electrodes on an inner surface of the first substrate, the first electrodes crossing the second electrodes; a plurality of electron emission regions electrically connected to the first electrodes at crossing regions where the first electrodes cross the second electrode; a light emission unit on an inner surface of the second substrate; and at least one spacer between the first and second substrates, Here, a shortest distance D between the spacer and the electron emission regions satisfies the following condition: 500 ?m?D?0.2Dh, where, Dh is a diagonal length of at least one of the crossing regions.Type: GrantFiled: May 9, 2007Date of Patent: June 15, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Jong-Hoon Shin, Sang-Jin Lee, Su-Joung Kang, Jin-Ho Lee, Kyung-Sun Ryu, Kyu-Won Jung, Pil-Goo Jun
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Publication number: 20100141144Abstract: A lamp with a base (1) and at least one light emitting semiconductor component (2) is disclosed. The base has at least two external electrical connections (11, 12) and at least two electrical connection parts (13, 14). The electrical connection parts are provided for electrically connecting the light emitting semiconductor component and are respectively connected to one of the external electrical connections in an electrically conducting manner. The light emitting semiconductor component is mounted on a carrier (3) and is electrically connected to at least two electrical contacting elements (31, 32), which are arranged and/or fixed on the carrier. Each of the electrical contacting elements is directly adjacent to one of the electrical connection parts and connected to it in an electrically conducting manner.Type: ApplicationFiled: December 12, 2007Publication date: June 10, 2010Applicant: OSRAM Gesellschaft mit beschranker HaftungInventors: Markus Hofmann, Rainer Huber
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Patent number: 7723907Abstract: A preferred embodiment of the invention is directed to support structures such as spacers used to provide a uniform distance between two layers of a device. In accordance with a preferred embodiment, the spacers may be formed utilizing flow-fill deposition of a wet film in the form of a precursor such as silicon dioxide. Formation of spacers in this manner provides a homogenous amorphous support structure that may be used to provide necessary spacing between layers of a device such as a flat panel display.Type: GrantFiled: August 21, 2006Date of Patent: May 25, 2010Assignee: MOSAID Technologies IncorporatedInventor: Brian A. Vaartstra
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Patent number: 7719176Abstract: A spacer, disposed between first and second substrates of an electron emission display, includes a main body, a resistive layer arranged on a side surface of the main body, a secondary electron emission preventing layer arranged on the resistive layer, and a diffusion preventing layer arranged between the resistive layer and the secondary electron emission layer. The diffusion preventing layer prevents interdiffusion between the resistive layer and the secondary electron emission preventing layer.Type: GrantFiled: October 16, 2006Date of Patent: May 18, 2010Assignee: Samsung SDI Co., Ltd.Inventor: Chul-Ho Park
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Patent number: 7710029Abstract: An organic EL display panel having a functional layer with a uniform film thickness is provided. The organic EL display panel of the present invention contains anode electrodes set on the substrate; organic EL layers set on the anode electrodes; line-state banks defining the organic EL layers in a line-state region; second banks defining two or more regions in the line-state region. The line-state banks and the second banks contain a fluorine resin, a fluorine concentration of the fluorine resin gradually changes along a thickness direction of each of the line-state bank and the second bank, and the fluorine concentration at a top of each of the line-state bank and the second bank is higher than the fluorine concentration at a bottom surface of each of the line-state bank and the second bank.Type: GrantFiled: May 18, 2009Date of Patent: May 4, 2010Assignee: Panasonic CorporationInventors: Hidehiro Yoshida, Yoshiro Kitamura, Shuhei Nakatani, Hisao Nagai
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Publication number: 20100102699Abstract: A discharge lamp having a discharge vessel (2) that comprises at least one bulb neck (21, 22), into which are fused a holding rod (6) extending into the discharge space (3) for an electrode (4, 5), a carrier part (10) on which at least one current-carrying element (9) is arranged, a support element (7) enclosing the holding rod (6) and a tube (13) enclosing the carrier part (10) with the current-carrying element. The tube (13) encloses the support element (7) over a partial length (L3) which is less than the total length (L) of the support element (7).Type: ApplicationFiled: March 12, 2007Publication date: April 29, 2010Applicant: OSRAM GESELLSCHAFT mit beschrankter HaftungInventors: Rainer Koger, Karsten Schwandt, Ralf Dotterweich, Piotr Kreft
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Publication number: 20100097544Abstract: According to an embodiment, a light emission device and a display device having the light emission device as a light source are provided.Type: ApplicationFiled: June 1, 2007Publication date: April 22, 2010Inventors: Kyu-Won Jung, Hun-Soo Kim, Bon-Gak Gu
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Patent number: 7683527Abstract: An alignment mark for a plasma display panel (PDP). The alignment mark comprises a first and a second alignment patterns installed on a front and a rear substrate respectively. The second alignment pattern on the non-display area is simultaneously formed with the rib barrier formation on the display area of the rear substrate, wherein the second alignment pattern is hexagonal-honeycomb. The first alignment pattern on the front substrate is simultaneously formed with the non-transparent material fabrication, such as a bus electrode or black matrix fabrication, and corresponds to a space within the second alignment pattern. The first alignment pattern comprises at least one line segment, parallel to at least one side of the hexagonal honeycomb pattern on the rear substrate with a predetermined distance therebetween.Type: GrantFiled: September 25, 2008Date of Patent: March 23, 2010Assignee: AU Optronics Corp.Inventors: Po-Cheng Chen, Jiun-Han Wu
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Patent number: 7683537Abstract: An organic EL device that increases light emission efficiency by promoting the uniformity of light-emitting layer thickness while reducing the interval between pixel regions, and a display provided with the organic EL device. An organic EL device (10) has two or more first banks (230) extending in a line state, a plurality of second banks (240) that define pixel regions (300) by dividing a region between the adjacent first banks (230) and have a height lower than that of the first bank (230), a hole transport layer (250) provided independently for each pixel region (300), and an insulating inorganic film (220) provided on edges of the pixel region (300) along side faces of the two first banks (230) facing each other and defining the pixel regions (300).Type: GrantFiled: May 21, 2008Date of Patent: March 23, 2010Assignee: Panasonic CorporationInventors: Hidehiro Yoshida, Keisei Yamamuro
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Publication number: 20100060135Abstract: A spacer, disposed between first and second substrates of an electron emission display, includes a main body, a resistive layer arranged on a side surface of the main body, a secondary electron emission preventing layer arranged on the resistive layer, and a diffusion preventing layer arranged between the resistive layer and the secondary electron emission layer. The diffusion preventing layer prevents interdiffusion between the resistive layer and the secondary electron emission preventing layer.Type: ApplicationFiled: October 16, 2006Publication date: March 11, 2010Inventor: Chul-Ho Park
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Patent number: 7667397Abstract: A flat panel display device including a display area in which a desired image is displayed, and a non-display area arranged outside the display area includes bank portions arranged on a substrate in a predetermined pattern in the display area and partitioning a plurality of first openings, an emission element arranged at each first opening, dummy bank portions formed in the non-display area together with the bank portions and a sealing passivation layer covering the emission element, the sealing passivation layer includes at least a two-layer structure including an organic film and an inorganic film alternately deposited, arranged along a surface defining the dummy bank portions on the upper surface of the emission element, and having a sectional portion directed to and contacting the substrate or a film on the substrate.Type: GrantFiled: January 11, 2007Date of Patent: February 23, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Tae-sik Oh, Sung-kee Kang, Jung-woo Kim, Ho-nyeon Lee, Hong-shik Shim, Young-gu Lee
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Patent number: 7663316Abstract: A plasma display panel and a manufacture method thereof are disclosed. The plasma display panel having a plurality of discharge pixels, the panel includes a first barrier rib, with a first width, formed to function as a boundary between the discharge pixels, a second barrier rib, with a second width, formed to function as a boundary between the discharge pixels, wherein the second width is more than the first width, and a black matrix formed over the second barrier rib.Type: GrantFiled: March 23, 2007Date of Patent: February 16, 2010Assignee: LG Electronics Inc.Inventor: Woong Kee Min
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Patent number: 7649307Abstract: A display panel assembly includes a first substrate having an effective display region for displaying an image and a non-effective display region positioned at a peripheral region outside of the effective display region, a second substrate facing the first substrate, a sealing member disposed along a boundary between the effective display region and the non-effective display region between the first and second substrates, the sealing member including a thermosetting material, and an exothermnic member interposed between the sealing member and the first substrate to generate heat for curing the sealing member.Type: GrantFiled: December 22, 2006Date of Patent: January 19, 2010Assignee: LG Display Co., Ltd.Inventor: Sung Hee Kim
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Patent number: 7642718Abstract: A plasma display panel having a reduced number of address electrodes to decrease power consumption while maintaining the same resolution is disclosed. First and second address electrodes are assigned to a pixel comprising three sub-pixels which are near one another. The first address electrode is assigned to two of the three sub-pixels and the second address electrode is assigned to the remaining sub-pixel. As a result, address electrode capacitance is reduced, and accordingly, cross-talk, power consumption, instantaneous power, and heat generation decrease significantly while maintaining the same display resolution.Type: GrantFiled: June 13, 2006Date of Patent: January 5, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Taewoo Kim, Sanghoon Yim
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Patent number: 7642701Abstract: In an organic EL display device comprising a substrate, a plurality of pixel regions in each of which a first electrode, a light emitting material layer, and a second electrode are laminated in this order above the substrate, and a bank film formed above the substrate to separate respective one of the pixel regions from another of the pixel regions adjacent thereto, wherein the bank film has a plurality of openings exposing upper surfaces of the first electrodes to the light emitting material layers in the respective pixel regions, and the second electrode is formed over the a plurality of openings of the bank film in common with the pixel regions, the present invention forms the bank film of an inorganic material and shapes a side wall thereof lying around each of the openings thereof to be sloped at an angle less than 85 degrees (°) with respect to a principal surface of the substrate in order to prevent the deterioration of the light emitting material layer and disconnection of the second electrode at stepType: GrantFiled: October 11, 2007Date of Patent: January 5, 2010Assignee: Hitachi Displays, Ltd.Inventors: Kazuhiko Kai, Masaaki Okunaka, Naoyuki Ito
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Patent number: 7642700Abstract: A flat-panel type display is provided, in which a marginal portion of a cathode panel provided with a plurality of electron emission regions and a marginal portion of an anode panel provided with luminescent layers and an anode are bonded to each other, spacers are disposed between the cathode panel and the anode panel, and a space sandwiched between the cathode panel and the anode panel is maintained under vacuum. The spacer includes a substrate of spacer and an antistatic coating disposed on the side surface of the spacer material, wherein the antistatic coating is formed from germanium nitride containing no transition metal, the thickness of the antistatic coating is within the range of 2 nm to 20 nm, and the volume resistivity of the substrate of spacer is within the range of 5×106 ?·m to 2×108 ?·m.Type: GrantFiled: May 7, 2007Date of Patent: January 5, 2010Assignee: Sony CorporationInventor: Atsushi Seki
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Publication number: 20090322221Abstract: An improved design for maintaining separation between electrodes in tunneling, resonant tunneling, diode, thermionic, thermo-photovoltaic and other devices is disclosed. At least one electrode 1 is made from flexible material. A magnetic field B is present to combine with the current flowing in the flexible electrode 1 and generate a force or a thermal expansion force combined with a temperature distribution that counterbalances the electrostatic force or other attracting forces between the electrodes. The balancing of forces allows the separation and parallelism between the electrodes to be maintained at a very small spacing without requiring the use of multiple control systems, actuators, or other manipulating means, or spacers. The shape of one or both electrodes 1 is designed to maintain a constant separation over the entire overlapping area of the electrodes, or to minimize a central contact area.Type: ApplicationFiled: August 28, 2007Publication date: December 31, 2009Applicant: TEMPRONICS, INC.Inventor: Tarek Makansi
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Patent number: 7629745Abstract: A plasma display apparatus is provided. The plasma display apparatus includes an upper substrate, a lower substrate that faces the upper substrate, and barrier ribs formed on the lower substrate to partition off discharge cells. At least one groove having a width no less than 0.1 times and no more than 0.8 times the width of the barrier rib is formed on the barrier rib. Therefore, it is possible to reduce a capacitance value between address electrodes and reduce reactive power formed between the electrodes so that it is possible to improve the discharge efficiency of the panel.Type: GrantFiled: October 30, 2006Date of Patent: December 8, 2009Assignee: LG Electronics Inc.Inventor: Yun Gi Kim
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Patent number: 7608996Abstract: An electroluminescence display and a manufacturing method therefore are disclosed in the present invention. The present invention combines an electroluminescence component and a passive component into a single display component for a display screen. The present invention has a simple manufacturing process, and decreases power consumption and the total size of a display screen.Type: GrantFiled: February 21, 2006Date of Patent: October 27, 2009Assignee: Industrial Technology Research InstituteInventors: Ming-Daw Chen, Jih-Fon Huang
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Patent number: 7605530Abstract: An image-forming device includes, in an envelope, an electron-emitting element for emitting an electron by applying a voltage between electrodes, an image-forming member for forming an image by irradiation with an electron beam emitted from the electron-emitting element, and a supporting member for supporting the envelope. The supporting member has an electroconductive film at an end portion and a side portion thereof, and is electrically connected through the electroconductive film to the electrode.Type: GrantFiled: April 26, 2007Date of Patent: October 20, 2009Assignee: Canon Kabushiki KaishaInventors: Ichiro Nomura, Hidetoshi Suzuki, Tetsuya Kaneko, Shinya Mishina, Naoto Nakamura
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Publication number: 20090251043Abstract: A resistive spacer coating for a carbon nanotube (CNT)/field emission device (FED) display is described. The resistive spacer coating reduces electrostatic charging of the spacer during operation of the display while maintaining the field potential between the cathode and the phosphor screen. The resistive coating includes one or more resistive materials which are combined with binders that are then applied to the spacer.Type: ApplicationFiled: June 28, 2006Publication date: October 8, 2009Inventors: James Francis Edwards, Peter Michael Ritt
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Patent number: 7589466Abstract: A plasma display panel. A first substrate and a second substrate are provided opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted between the first substrate and the second substrate, the barrier ribs defining a plurality of discharge cells. Also, red, green, and blue phosphor layers are formed within each of the discharge cells. Discharge sustain electrodes are formed on the first substrate. The barrier ribs comprise first barrier rib members formed substantially parallel to the direction of the address electrodes, and second barrier rib members obliquely connected to the first barrier rib members and intersecting over the address electrodes. The second barrier rib members are formed to different widths according to discharge cell color such that red, green, and blue discharge cells have different volumes.Type: GrantFiled: April 24, 2007Date of Patent: September 15, 2009Assignee: Samsung SDI Co., Ltd.Inventors: Kyoung-Doo Kang, Woo-Tae Kim, Hun-Suk Yoo, Seok-Gyun Woo, Jae-Ik Kwon
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Patent number: 7576481Abstract: A method of producing a cathode for use in an x-ray tube assembly is provided including machining an emission aperture into a cup emission surface portion of a cup structure. The cup structure is comprised of a cup base portion opposite the cup emissions surface portion. Electro-discharge machining is used to form an electro-discharge machining slot into the cup structure to provide access to the interior of the cup structure. Electro-discharge machining is used to form a transverse coil chamber within the interior by way of the electro-discharge machining slot such that the transverse coil chamber is formed between the cup base portion and the cup emissions surface portion while retaining an essentially contiguous emissions surface perimeter surrounding the emission aperture.Type: GrantFiled: June 30, 2005Date of Patent: August 18, 2009Assignee: General Electric Co.Inventor: Sergio Lemaitre
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Patent number: 7576488Abstract: Disclosed is a multi-typed plasma display panel for preventing internal penetration of a seal line by forming a barrier rib in a vertical direction, in a horizontal direction or in both directions. In the multi-typed plasma display panel, a barrier rib is formed according to a cross-section in a vertical direction, in a horizontal direction or in both directions so that a seal line of the cross-section is prevented from being penetrated internally. In the horizontal direction, an auxiliary barrier rib may be further formed outside the barrier rib. Additionally, a dielectric of the rear panel is removed as large as an area separated from the cross-section in a predetermined distance so that the seal line may be formed in a condition where a glass is exposed.Type: GrantFiled: December 24, 2003Date of Patent: August 18, 2009Assignee: Orion PDP Co., Ltd.Inventors: Gwon Jin Moon, Gwang Pyo Choi, Seok Joon Moon, Hea Sung Jang
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Patent number: 7569991Abstract: A plasma display panel and manufacturing process therefor, providing an improved barrier rib strength in an opposing discharge structure. The plasma display panel may include a front substrate and a rear substrate, address electrodes extending in a predetermined direction on the rear substrate, and a barrier rib layer disposed between the front and rear substrates for defining a plurality of discharge spaces. The barrier rib layer includes barrier rib members for defining the plurality of discharge spaces, and display electrodes forming opposing electrodes with the discharge spaces therebetween, with grooves formed in a direction crossing the address electrodes on the barrier rib members facing the front substrate, and inner surfaces of the grooves that are coated with display electrodes.Type: GrantFiled: January 31, 2006Date of Patent: August 4, 2009Assignee: Samsung SDI Co., Ltd.Inventors: Yoshitaka Terao, Takashi Miyama, Yukika Yamada
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Patent number: 7569980Abstract: A thermal electron emission backlight unit includes: first and second substrates arranged parallel to each other; first and second anode electrodes respectively arranged on inner surfaces between the first and second substrates; wall frames adapted to seal an inner space between the first and second substrates; a movable spacer holder and a fixed spacer holder arranged inside the wall frames to face each other; a plurality of spacers arranged between the first and second substrates and adapted to maintain a gap therebetween, wherein ends of the spacers are coupled to the movable and fixed spacer holders; a plurality of cathode electrodes arranged across the spacers between the first and second substrates; and a phosphor layer arranged on the second anode electrode. The spacers include tension spacers adapted to provide tension between the movable and fixed spacer holders by pushing the movable spacer holder away from the fixed spacer holder. The first substrate is adapted to pass white light therethrough.Type: GrantFiled: October 10, 2006Date of Patent: August 4, 2009Assignee: Samsung SDI Co., Ltd.Inventors: Byong-Gwon Song, Moon-Jin Shin
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Patent number: 7567034Abstract: A plasma display panel includes a plurality of first discharge spaces positioned between a front substrate and a rear substrate, and a plurality of sub-pixel units, each of the first discharge spaces having at least two of the sub-pixel units. Each of the first discharge spaces having at least two of the sub-pixel units increases the space available to discharge gas in each sub-pixel unit, thereby reducing a discharge voltage of the discharge gas in each sub-pixel unit and further decreasing an operating voltage and power consumption of the plasma display panel.Type: GrantFiled: November 22, 2006Date of Patent: July 28, 2009Assignee: AU Optronics Corp.Inventors: Yao-Ching Su, Shiang-Wen Wan
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Patent number: 7567033Abstract: A barrier rib structure of a plasma display panel and a lower plate structure of the panel using the same, are discussed. According to an embodiment, the lower plate structure of the plasma display panel includes a substrate, barrier ribs formed on the substrate, and at least one blocking wall formed at least one beginning potion of the barrier ribs, from which a process of coating phosphor screens starts, to separate neighboring discharge spaces around the barrier ribs from each other.Type: GrantFiled: January 4, 2006Date of Patent: July 28, 2009Assignee: LG Electronics Inc.Inventors: Sang Jin Oh, Joon Kyu Park, Dug Hwan Kim, Soon Kook Hong, Kang Ug Lee, Hye Jin Lee
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Patent number: 7564179Abstract: A flat panel display includes a substrate, a front glass, a cathode, a gate electrode, a plurality of front ribs, a phosphor film and a metal-backed film, and a gate rib. The front glass is arranged to oppose the substrate and forms a vacuum envelope together with the substrate. The front glass is transparent at least partially. The cathode is arranged on the substrate. The gate electrode is arranged between the substrate and front glass and includes an electron-passing hole through which an electron emitted from the cathode passes. The front ribs extend vertically at a predetermined interval from the front glass toward the gate electrode. The phosphor film and metal-backed film are stacked on a region of the front glass which is sandwiched by the front ribs. The gate rib extends vertically from the gate electrode toward the front glass and is in contact with the front ribs. A gate electrode structure and a gate electrode structure manufacturing method are also disclosed.Type: GrantFiled: January 4, 2006Date of Patent: July 21, 2009Assignee: Noritake Co., Ltd.Inventors: Junko Yotani, Sashiro Uemura
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Patent number: 7560858Abstract: A metal solder layer is formed on a sealing substrate through patterning. A pixel substrate is overlapped to the sealing substrate and the solder layer is irradiated with laser so that the sealing substrate and the pixel substrate are connected. Because the joining is achieved by the metal solder layer, intrusion of moisture into the inside space can be reduced. In addition, the solder layer can be very precisely formed through patterning.Type: GrantFiled: February 25, 2005Date of Patent: July 14, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Ryuji Nishikawa, Tetsuji Omura, Masaya Nakai
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Patent number: 7557504Abstract: A plasma display panel can reduce a discharge delay in address discharge, thereby performing high-speed addressing in a stable manner. A front substrate (1) and a back substrate (2) are disposed to face each other, and a discharge space (3) is formed and partitioned by barrier ribs (10) so as to form priming discharge cells (17) and main discharge cells (11). A clearance (19) is provided between the barrier ribs (10) of the priming discharge cells (17) and the front substrate (1), and priming particles generated in the priming discharge cells (17) are supplied to the main discharge cells (11) through the clearance (19), whereby a PDP performing high-speed addressing is obtained.Type: GrantFiled: March 25, 2004Date of Patent: July 7, 2009Assignee: Panasonic CorporationInventors: Hiroyuki Tachibana, Morio Fujitani, Tsuyoshi Nishio, Toru Ando, Koichi Mizuno
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Patent number: 7548017Abstract: The invention provides an image forming apparatus in which orbit shift can be prevented to perform good image display in an electron beam emitted from the electron-emitting device adjacent to the spacer when an antistatic spacer coated with a high resistance film is used. A surface shape is controlled by forming a fine particle film on the surface of a row directional wiring 5 in which a spacer 3 is arranged, the electron emission is realized from electron-emitting areas 14a and 14b near contacting areas 15a and 15b in a non-contacting area 16 in which the spacer 3 is not in contact with the row directional wiring 5, and the non-contacting area 16 of the spacer 3 is irradiated with the electron to decrease a potential, which allows a good equipotential line 17 to be formed.Type: GrantFiled: June 24, 2005Date of Patent: June 16, 2009Assignee: Canon Kabushiki KaishaInventor: Yoichi Ando
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Patent number: 7538484Abstract: An organic EL display panel includes a bulkhead for insulating an emitting cell from an anode strip. The emitting cell is formed from an ITO strip, a supplement electrode, an organic EL layer, an the anode strip, and at least one supplemental bulkhead. The supplemental bulkhead prevents sealant from being injected along a main bulkhead and into the emitting cell, thereby preventing an inferior device from being produced and also yield is increased.Type: GrantFiled: April 15, 2004Date of Patent: May 26, 2009Assignee: LG Electronics Inc.Inventor: Chang Nam Kim
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Publication number: 20090115304Abstract: Provided is a bulb with an adjustable radiation angle, comprising a bulb base, a bulb body and a soft pipe; wherein the bulb base is connected to the bulb body via the soft pipe; and the soft pipe is capable of stretching and bending, so as to change a position of the bulb body and a radiation angle thereof. The invention makes it convenient to adjust a radiation angle of the bulb, and improves flexibility thereof.Type: ApplicationFiled: August 27, 2008Publication date: May 7, 2009Inventor: Yulin WU
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Patent number: 7525251Abstract: A structure of barrier ribs of a plasma display panel (PDP) which reduces noise and vibration generated when operating the PDP as well as easily performs a test to find defective barrier ribs during manufacturing the PDP, and a PDP including the barrier ribs are disclosed. In one embodiment, the barrier ribs include: i) main barrier ribs partitioning display discharge cells disposed in a display region at which an image is displayed, ii) first dummy barrier ribs disposed adjacent to the display discharge cells in a non-display region at which an image is not displayed, partitioning first non-display discharge cells having the same structure as the display discharge cells and iii) second dummy barrier ribs disposed adjacent to the first non-display discharge cells in a non-display region partitioning second non-display discharge cells having a different structure from the display discharge cells.Type: GrantFiled: March 10, 2006Date of Patent: April 28, 2009Assignee: Samsung SDI Co., Ltd.Inventor: Se-Jong Kim
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Patent number: 7521865Abstract: A plasma panel used as a light source of a display panel includes a first substrate having a first surface, a second substrate positioned above the first substrate, a plurality of electrode pairs extending along a first direction on the first surface, and a plurality of conductive spacers. Each of the electrode pairs includes a first electrode and a second electrode. The conductive spacers are formed on the first electrode and the second electrode for performing a discharge of opposed electrodes and supporting the second substrate.Type: GrantFiled: April 19, 2004Date of Patent: April 21, 2009Assignee: AU Optronics Corp.Inventors: Yao-Ching Su, Yih-Jer Lin
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Publication number: 20090096715Abstract: The present invention relates to a discharge lamp with a floor plate and a roof plate, which is designed for dielectrically impeded discharge, with at least two electrodes of different polarity being allocated to the sections of the discharge space, which is divided by rib-like support elements, with the electrodes located at a distance from the longitudinal support elements.Type: ApplicationFiled: May 31, 2007Publication date: April 16, 2009Applicant: OSRAM GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventors: Lothar Hitzschke, Frank Vollkommer
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Patent number: 7511408Abstract: A spacer for an image display apparatus includes a glass base member which contains SiO2 by 10 to 35 wt %, RO (R representing an alkali earth metal) by 20 to 60 wt %, B2O3 by 9 to 30 wt % and Sb2O3 by 0.01 to 5 wt %.Type: GrantFiled: September 12, 2005Date of Patent: March 31, 2009Assignee: Canon Kabushiki KaishaInventor: Kohei Nakata
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Publication number: 20090072695Abstract: This is to provide an image display device using a spacer 103 which can reduce an influence which charge has on an electron orbit greatly without depending on electroconductivity of the spacer 103 itself, and a characteristic of a material by making effectual charge amount zero by controlling positive and negative charge distributions generated on a surface of the spacer 103. This is an image display device using a spacer 103 on a main surface of which concavo-convex structure 106 is formed, the spacer 103 having the concavo-convex structure 106 which can cancel mutually positive charge in a convex portion of the concavo-convex structure 106, and negative charge in a concave portion.Type: ApplicationFiled: May 25, 2007Publication date: March 19, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Taro Hiroike, Akira Hayama, Takeshi Noda, Hideaki Mitsutake
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Patent number: 7501760Abstract: A plasma display panel having improved exhaust efficiency is disclosed. A plasma display panel according to a first embodiment of the invention includes first and second substrates opposing each other; barrier ribs that are located in a space between the first substrate and the second substrate for dividing a plurality of discharge cells in sealed spaces; display electrodes located along the discharge cells; and address electrodes formed in a direction intersecting the display electrodes. The barrier ribs include first barrier ribs having a first height and second barrier ribs having a second height so that the difference in height between the two ribs is provided.Type: GrantFiled: December 16, 2005Date of Patent: March 10, 2009Assignee: Samsung SDI Co., Ltd.Inventors: Eui-Jeong Hwang, Min-Sun Yoo, Tae-Ho Lee, Yon-Goo Park
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Patent number: 7501751Abstract: The present invention ensures the hermetic bonding of a support body which is interposed between a face substrate and a back substrate and is formed of a plurality of members thus easily realizing the large-sizing of a screen of a display image and, at the same time, enhancing a hermetic property holding function of the image display device. A support body is interposed between a face substrate and a back substrate while surrounding a display region and hermetically seals both substrates using a sealing material. The support body is formed by hermetically bonding a plurality of support body members each other using a bonding material which has a softening point higher than a softening point of the sealing material.Type: GrantFiled: April 23, 2007Date of Patent: March 10, 2009Assignee: Hitachi Displays, Ltd.Inventors: Yuuichi Kijima, Yoshiyuki Kaneko, Shigemi Hirasawa
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Patent number: 7492100Abstract: A high efficiency plasma display panel (PDP) has a discharge cell structure in which front discharge electrodes and rear discharge electrodes are optimally positioned to maximize discharge efficiency and greatly increase light transmittance.Type: GrantFiled: April 13, 2005Date of Patent: February 17, 2009Assignee: Samsung SDI Co., Ltd.Inventor: Woo-Tae Kim