Having Baffle, Partition, Or Constricting Means Affecting Discharge Patents (Class 313/609)
  • Patent number: 10989691
    Abstract: Embodiments relate generally to an ultraviolet lamp (100) for use with a photoionization detector comprising a sealed tube (102) configured to contain at least one gas; a coating (120) applied to the inner surface (110) of the sealed tube (102); and a crystal window (112) attached to the sealed tube (102), configured to allow transmittance of ultraviolet (UV) light generated within the sealed tube (102).
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: April 27, 2021
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Aimin Su, Zhongxing Cao, Bing Chen, Feng Liang
  • Patent number: 9929367
    Abstract: The present invention relates to the field of display technology, and particularly to a display device and method for fabricating the same. The display device comprises: a substrate; one or more dams which are arranged to surround an active area on the substrate; and a functional film formed in the active area. A method for fabricating a display device comprises: forming one or more dams on a substrate which surround a region to be coated; coating a functional ink in the region to be coated; and forming the functional ink into a functional film. According to the present invention, the dams prevent the functional ink from spreading to a peripheral region of the substrate, which facilitates forming a functional film with a uniform thickness and reduces the consumption of the functional ink.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: March 27, 2018
    Assignee: Boe Technology Group Co., Ltd.
    Inventors: Shinsuke Iguchi, Chinlung Liao
  • Patent number: 8723418
    Abstract: A starting light source for radiating the UV-light to a discharge chamber upon starting lighting of a high pressure discharge lamp includes a discharge tube for generating the UV-light by a starting voltage applied upon starting lighting the lamp, the discharge tube includes an internal electrode extended from a pinch seal portion formed at one end to a light-emitting portion thereof and an external electrode disposed close to or in contact with both of the light-emitting portion and the pinch seal portion, at least a portion of the external electrode disposed for the light-emitting portion includes a holder formed by bending fabrication of a metal sheet into such a shape of gripping and holding the discharge tube, and a terminal is formed to the holder for fixing and electrically connecting the external electrode to a conductor part having a polarity opposite to that of the internal electrode.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: May 13, 2014
    Assignee: Iwasaki Electric Co., Ltd.
    Inventors: Yosuke Kano, Nobuo Fukuda, Makoto Ohkahara, Yousuke Ishikawa, Sumio Uehara
  • Patent number: 8721149
    Abstract: This disclosure provides systems, methods and apparatus for illumination devices. In one aspect, an illumination device having a longitudinal axis includes a light source and a light guide. The light guide has a peripheral edge, a transmissive illumination surface, a center portion, and an upper surface. The transmissive illumination surface is oriented perpendicular to the longitudinal axis and disposed between the center portion and the peripheral edge. The upper surface is oriented relative to the illumination surface to define an angle ? therebetween. In some implementations, the angle ? can be greater than 15 degrees, for example.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: May 13, 2014
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Robert L. Holman, Matthew B. Sampsell
  • Patent number: 8400059
    Abstract: Known mercury-vapor discharge lamps for planar irradiation are provided with a lamp bulb made of quartz glass, which encloses a closed discharge space having a non-linear gas-discharge channel. In order to provide a structurally simple lamp, which also guarantees a highest possible homogeneity of the UV irradiation, even for a small distance to the surface to be treated, the lamp bulb is formed as a quartz-glass chamber defined by straight walls and having bottom, top, and side walls and is divided into sub-chambers by several separating webs made of quartz glass and projecting from the bottom wall to the top wall. These sub-chambers include a front-most sub-chamber and a rear-most sub-chamber and form in series interconnection the non-linear gas-discharge channel. The separating webs extend alternately from one side wall up to close to the opposite side wall, while leaving open a gap connecting adjacent sub-chambers in a fluid-communicating manner.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: March 19, 2013
    Assignee: Heraeus Noblelight GmbH
    Inventors: Alex Voronov, Burkard Jung, Franz-Josef Schilling
  • Patent number: 8384288
    Abstract: Disclosed herein is an electroluminescent fabric embedding an illuminated fabric display. The electroluminescent fabric according to the present invention comprises: a foundation layer composed of a synthetic, regenerated or natural fiber; a polymer layer stacked on the base layer; a first bus bar stacked on the polymer layer; a transparent electrode layer stacked on the first bus bar; a fluorescent layer stacked on the transparent electrode layer; a dielectric layer stacked on the fluorescent layer; an interface electrode layer stacked on the dielectric layer; and a second bus bar connected to the interface electrode layer.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: February 26, 2013
    Assignee: Kolon Glotech, Inc.
    Inventors: Sung Mee Park, Kwang Su Cho, Kyung Hee Chung
  • Patent number: 8164263
    Abstract: An excimer discharge lamp comprises an electric discharge container having an electric discharge space, a pair of electrodes provided on an outer face of the electric discharge container, and an electric discharge gas enclosed in the electric discharge space. Further the electric discharge container comprises a tubular side wall on which the pair of electrodes is formed, one end wall for sealing one end of the side wall, and another end wall that is provided on the other side of the side wall. The side wall and the end walls are made of sapphire, YAG, or single crystal yttria. A chip pipe is provided on the another end wall, and a partition member made of sapphire, YAG, or single crystal yttria is formed between a shortest distance of the chip pipe and the inner face of the side wall.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: April 24, 2012
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventors: Yukihiro Morimoto, Kengo Moriyasu
  • Patent number: 8008862
    Abstract: A shine-through, low pressure discharge, hydrogen lamp has a metallic housing structure shielding the discharge space in a lamp bulb filled with hydrogen. In this lamp a diaphragm (4) made of electrically insulating material is fixed in the metallic housing part (2) which is to face a visible light source.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: August 30, 2011
    Assignee: Heraeus Noblelight GmbH
    Inventor: Rolf Malkmus
  • Patent number: 7928644
    Abstract: A low pressure discharge lamp with a double helix shape comprises a lamp base and an envelope connected to the lamp base. The envelope has a phosphor coating on an interior surface thereof, and contains a gas fill energizable to a discharge state by electrical voltage. The envelope includes discharge tube sections which are wound about a longitudinal axis and fitted into each other as a double-start thread. The discharge tube sections have first end portions and second end portions. The first end portions are closer to the lamp base and each have a gas-tight sealing and electrodes in the sealing for receiving the electric voltage. The second end portions are farther off the lamp base and each have a gas-tight sealing. These second end portions are bent inwards from a pitch of the helix and extend next to each other spaced apart by a clearance. A passage is formed between said second end portions. The passage is spaced apart by a distance from the sealing of each said second end portion.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: April 19, 2011
    Assignee: General Electric Company
    Inventors: József Tökés, Sándor Lukács
  • Patent number: 7862186
    Abstract: This projector comprises a source lamp, a lamp storage portion, storing the source lamp therein, including an air discharge opening for discharging internal air from the lamp storage portion and a netlike member so arranged as to cover the outer side of the air discharge opening of the lamp storage portion for inhibiting fragments of the source lamp from being discharged outward from the lamp storage portion through the air discharge opening when the source lamp is broken. The lamp storage portion further includes a protrusion provided on the outer side surface close to the air discharge opening to protrude in a direction intersecting with the extensional direction of the netlike member with a function of inhibiting the fragments of the source lamp from passing through a clearance between the lamp storage portion and the netlike member.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: January 4, 2011
    Assignee: Funai Electric Co., Ltd.
    Inventor: Shingo Hamada
  • Patent number: 7852005
    Abstract: The invention relates to a fluorescent lamp with an external electrode used as a backlight of a liquid crystal display device or others. To reduce invalid parts of the backlight, the length in an axial direction of an external electrode of the fluorescent lamp is required to be reduced. Therefore, a concave portion is provided to the end of the fluorescent lamp with an external electrode, and by forming the external electrode in the concave portion, the total area of the external electrodes is secured. Even if the length in the axial direction of the external electrode is short, discharge is stabilized. Graphite is used for the external electrode; however, graphite in which a water glass component is increased to enhance its mechanical strength is used.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: December 14, 2010
    Assignees: Hitachi Displays, Ltd., Hitachi Display Devices, Ltd.
    Inventors: Masayoshi Misono, Reiji Torai, Yoshiharu Takeda
  • Patent number: 7808515
    Abstract: A method of driving a plasma display panel (PDP) that includes providing a plurality of X electrodes and a plurality of Y electrodes extending in a first direction, a plurality of A electrodes arranged between the X electrode and the Y electrode and extending in a second direction that crosses the plurality of X electrodes and the plurality of Y electrodes, and a plurality of discharge cells arranged in a region where the A electrodes cross the X electrodes and the Y electrodes. The PDP being driven by applying a pulse waveform voltage alternating between a low level voltage and a high level voltage to the X electrodes and applying a pulse waveform voltage alternating between the high level voltage and the low level voltage to the Y electrodes during a sustain discharge period when sustain discharging occurs in selected ones of the plurality of discharge cells. Voltages and/or pulse widths of the second pulse in the sustain discharge period are made different than other pulses in the sustain discharge period.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: October 5, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Kyoung-Doo Kang
  • Patent number: 7802890
    Abstract: A light source device includes a microwave generating section for generating a microwave, a reflector connected to the microwave generating section, and a microwave electrodeless lamp disposed inside a cavity, the cavity including the reflector and a metallic chamber covering an opening section of the reflector. The chamber includes a tube member having an opening section for communicating the inside and the outside of the cavity to lead a light flux out of the chamber, and a bore diameter, D of the opening section, a length L of the tube member, a wavelength ? of the microwave, and a wavelength ? of the light flux satisfy ?<D?(¼)?, L?(¼)?, and D+L=(½)?.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: September 28, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Yutaka Takada, Hiroyuki Moteki
  • Patent number: 7764018
    Abstract: A gas discharge tube which generates discharge between an anode 24 and a cathode 56 disposed within a sealed container 12 in which a gas is sealed, includes a cylindrical part 28 restricting the discharge path, the cylindrical part being disposed between the anode and the cathode and having a through hole 42 for narrowing the discharge path between the anode and the cathode, and a discharge shielding part 50 which is disposed so as to cover a surrounding of the part restricting the discharge path and is electrically insulated from the part restricting the discharge path, wherein the part restricting the discharge path has a cathode side end projecting by a predetermined projecting amount more than a surface on the cathode side of the discharge shielding part and an anode side end projecting into a space 62 on the side where the anode is positioned so that a high-density electron region is formed only in a part on the cathode side of the through hole of the part restricting the discharge path to reliably gener
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: July 27, 2010
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yoshinobu Ito, Tsuyoshi Minamizawa, Koji Matsushita
  • Patent number: 7642718
    Abstract: 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: Grant
    Filed: June 13, 2006
    Date of Patent: January 5, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Taewoo Kim, Sanghoon Yim
  • Publication number: 20090251497
    Abstract: The invention relates to a discharge lamp with a floor plate and a roof plate designed for dielectrically impeded discharge, in which the minimum discharge distances are at least 10 mm.
    Type: Application
    Filed: May 31, 2007
    Publication date: October 8, 2009
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Patent number: 7589466
    Abstract: 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: Grant
    Filed: April 24, 2007
    Date of Patent: September 15, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyoung-Doo Kang, Woo-Tae Kim, Hun-Suk Yoo, Seok-Gyun Woo, Jae-Ik Kwon
  • Patent number: 7569993
    Abstract: In a gas discharge tube there is carried out narrowing of the discharge path with cooperation of the first opening 20 and second opening 12 in order to obtain higher luminance of light. Further, in order to maintain excellent starting-properties of a lamp even if the discharge path is narrowed, a predetermined voltage is applied to a second discharge path limit portion 11 externally. Thereby, a positive or active starting discharge is produced in such a manner as to pass through the first opening 20. Further, the second opening 12 is comprised of not only a straight section 13 extending in a direction of an optical axis Y, but also a spread section 14 extending from an end portion of the straight section 13 toward the first opening 20.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: August 4, 2009
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yoshinobu Ito, Koji Matsushita, Masaki Ito
  • Patent number: 7557509
    Abstract: The present invention relates to a gas discharge tube or the like having a structure for enabling the maintenance of discharge startability and the prevention of the shortening of the life of an anode section and for increasing the amount of visible light from a visible light source passing through a discharge path restricting section. The gas discharge tube comprises a sealed vessel in which gas is encapsulated. A cathode section and anode section for generating discharge are arranged in the sealed vessel. Furthermore, a discharge path restricting section for narrowing a discharge path is arranged between the cathode section and the anode section. In particular, an opening portion is formed in the anode section, and the cross section of the opening portion has a non-circular shape where the maximum opening width in a first direction is different from that in a second direction orthogonal to the first direction.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: July 7, 2009
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yoshinobu Ito, Masaki Ito, Koji Matsushita
  • Patent number: 7518232
    Abstract: The present invention relates to a plasma display panel (PDP) that includes a first substrate, an address electrode formed on the first substrate, a dielectric layer formed on the first substrate and covering the address electrode, a barrier rib formed on the dielectric layer, a second substrate, a display electrode formed on the second substrate, a dielectric layer formed on the second substrate and covering the display electrode, and a protection layer formed on the dielectric layer of the second substrate. Discharge cells are defined by barrier ribs, and a phosphor layer is formed in the discharge cells. Barrier ribs contains inorganic adsorbent. When a PDP is operated for a long time, residual carbon or water is generated inside discharge cells, and thereby contaminates a discharge gas contained in the discharge cells. The inorganic adsorbent included in the barrier ribs absorb the residual carbon or water improving efficiency and lifespan of the PDP.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: April 14, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Young-Gil Yoo
  • Publication number: 20080246400
    Abstract: The present invention relates to a gas discharge tube or the like having a structure for enabling the maintenance of discharge startability and the prevention of the shortening of the life of an anode section and for increasing the amount of visible light from a visible light source passing through a discharge path restricting section. The gas discharge tube comprises a sealed vessel in which gas is encapsulated. A cathode section and anode section for generating discharge are arranged in the sealed vessel. Furthermore, a discharge path restricting section for narrowing a discharge path is arranged between the cathode section and the anode section. In particular, an opening portion is formed in the anode section, and the cross section of the opening portion has a non-circular shape where the maximum opening width in a first direction is different from that in a second direction orthogonal to the first direction.
    Type: Application
    Filed: December 12, 2005
    Publication date: October 9, 2008
    Inventors: Yoshinobu Ito, Masaki Ito, Koji Matsushita
  • Patent number: 7397176
    Abstract: A surface light source device includes a light source body, first and second electrodes, a light reflecting layer, and a fluorescent layer. The light source body is configured to generate light. The first and second electrodes are each disposed adjacent to a corresponding opposite end portion of the light source body. The first and second electrodes receive a discharge voltage that creates a potential difference across the light source body. The light reflecting layer is disposed at an internal surface of the light source body. The light reflecting layer includes light diffusing particles having at least two sizes. The fluorescent layer is disposed at selected regions of the light source body. Therefore, the light reflecting layer is not deformed by heat and enhances reflectivity without changing a color coordinates.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: July 8, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joong-Hyun Kim, Hae-Soo Ha, Sang-Yu Lee, Seog-Hyun Cho
  • Patent number: 7385342
    Abstract: A flat lamp for emitting light to a surface area of a liquid crystal display device includes a bottom having a channel uniformly crossing an entire surface of the bottom, an arc-discharging gas is disposed within the channel, a cover disposed upon an upper junction surface of the bottom, the cover is coated with a fluorescent material, and an electric field generating means for generating an electric field, wherein the electric field generating means is placed along opposing lateral sides of the channel.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: June 10, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Sun Kwan Eom
  • Patent number: 7382096
    Abstract: A flat fluorescent lamp includes a lamp body and an external electrode. The lamp body includes a plurality of discharge spaces. Each of the discharge spaces includes a first discharge region having a first space width and a first space length, a second discharge region having a second space width and a second space length, and a third discharge region having a third space width and third space length. The second discharge region is disposed between the first and third discharge regions. The second space width is smaller than the first and third space widths, and the second space length is smaller than the first and third space lengths. Thus, an electrode part of the flat fluorescent lamp is prevented from being blackened due to dendrite generated at the electrode part, so that the display quality of the liquid crystal display device having the flat fluorescent lamp can be improved.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: June 3, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hae-Il Park, Sang-Yu Lee, Jin-Seon Byun, Joong-Hyun Kim
  • Patent number: 7310073
    Abstract: The present invention relates to a plasma display panel, and more particularly, to an electrode structure of a plasma display panel capable of improving brightness and efficiency. According to a first embodiment of the present invention, in a plasma display panel of a long column structure having a front substrate and a rear substrate that are opposite to each other, the transparent electrodes of the scan electrodes or the sustain electrodes include projections projected toward the center of the discharge cells every discharge cell. Also, a discharge start voltage and a discharge sustain voltage can be lowered and brightness and efficiency can be increased. It is also possible to maintain color temperature equilibrium every RGB cell and to reduce an erroneous discharge of each cell.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: December 18, 2007
    Assignee: LG Electronics Inc.
    Inventors: Jae Bum Park, Sung Chun Choi
  • Publication number: 20070273285
    Abstract: There is provided a surface light source comprising a plurality of discharge channels, in which each end of the outermost discharge channel is expanded towards a sealing part. At least one of the plurality of discharge channels may include a curved surface part and a flat surface part on a top surface thereof. Both ends of the discharge channel may be formed to be higher than a middle portion thereof, and the discharge channels may be formed to be different in height. Accordingly, the discharge characteristic is improved and bad luminance uniformity is solved by variously changing the shape of the discharge channel forming the discharge space in a surface light source. Furthermore, the present invention solves the problems, such as failure in lighting at low temperature, channeling between adjacent channels, and maintains the quality of molded products.
    Type: Application
    Filed: May 29, 2007
    Publication date: November 29, 2007
    Applicant: SAMSUNG CORNING CO.,LTD.
    Inventors: Jae Seon HONG, Keon Yong Kim, Tae Soo Lee, Hee Soo Song, Dae Sung Kim, Keun Yung Kim
  • Patent number: 7288880
    Abstract: In a gas discharge tube, a first discharge path-induction portion is arranged between a first discharge path-limit portion and a second discharge path-limit portion. A voltage is applied to the first discharge path-induction portion from the outside. As a result, an active starting discharge capable of passing through a first opening of the first discharge path-limit portion is produced between a cathode portion and the first discharge path-induction portion. As a consequence, there is facilitated the discharge at a starting time to pass through a second opening. As a consequence, there is achieved a rapid starting of discharge between the cathode portion and an anode portion.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: October 30, 2007
    Assignee: Hamatsu Photonics K.K.
    Inventor: Yoshinobu Ito
  • Patent number: 7288893
    Abstract: A gas discharge tube 10 of the present invention generates an electric discharge between an anode part 24 and a cathode part 52 disposed inside a sealed container 12 in which gas has been sealed. The gas discharge tube 10 includes an electric discharge path restricting part 28 which is cylindrical and disposed between the anode part and the cathode part, and which has a throughhole 46 for narrowing an electric discharge path between the anode part and the cathode part; and a supporting part 30 which supports the electric discharge path restricting part and which is electric insulating. The electric discharge path restricting part is provided at its tip portion with a projecting part 44 which is cylindrical and projects toward the cathode part side. Letting the outer diameter and height of the projecting part 44 be “D” and “H,” respectively, then D/H is in the range of 0.5 to 2.0. With this structure, it is possible to generate an intense electric field in the vicinity of the tip of the projecting part.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: October 30, 2007
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yoshinobu Ito, Masaki Ito, Koji Matsushita
  • Patent number: 7271541
    Abstract: A surface light source device includes a first substrate, a second substrate and a hollow electrode. The second substrate is combined with the first substrate to form a plurality of discharge spaces. The second substrate includes a plurality of recesses. The hollow electrode is disposed in each of the discharge spaces under the recesses of the second substrate, respectively. The surface light source device further includes an external electrode disposed on a lower surface of the first substrate corresponding to the hollow electrode. The external electrodes are on an outer surface of the lamp body, and are partially overlapped with the discharge spaces. The hollow electrode may have a rectangular tube or other suitable shape. As a result of the foregoing construction, the life span of the surface light source device may increase, and the light emitting efficiency may similarly increase.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: September 18, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hae-Il Park, Sang-Yu Lee
  • Patent number: 7245080
    Abstract: An organic electroluminescent device includes first and second substrates facing and spaced apart from each other, the first and second substrates including a pixel region; a gate line on an inner surface of the first substrate; a data line crossing the gate line; a switching thin film transistor connected with the gate line and the data line; a driving thin film transistor connected with the switching thin film transistor; a power line connected with the driving thin film transistor; a first electrode on an inner surface of the second substrate; a first sidewall and a second sidewall on the first electrode at a boundary of the pixel region, the first sidewall and the second sidewall spaced apart from each other; an electroluminescent layer on the first electrode in the pixel region; a second electrode on the electroluminescent layer in the pixel region; and a connection electrode electrically connected to the first and second substrates.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: July 17, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jae-Yoon Lee, Kyung-Man Kim, Jae-Yong Park, Choong-Keun Yoo, Ock-Hee Kim
  • Patent number: 7205720
    Abstract: A plasma display panel (PDP) has a structure which extends a discharge space, increases a visible light emission area, enables a low driving voltage, and improves light emission efficiency. The PDP comprises: a pair of substrates including a first substrate and a second substrate facing each other; a barrier rib located between the first substrate and the second substrate, and defining discharge, together with the first and second substrates, cells where gas discharge is generated; a plurality of discharge electrodes comprising first discharge electrodes and second discharge electrodes, surrounding the discharge cell vertically spaced in the barrier rib, for generating a gas discharge by mutual actions; and a first phosphor layer and a second phosphor layer located in the discharge cell formed in the first substrate and in the discharge cell formed in the second substrate, respectively.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: April 17, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Se-Jong Kim
  • Patent number: 7164223
    Abstract: A multi-tube fluorescent discharge lamp, which is constructed of multiple glass tubes of different caliber in coaxial structure, the both sides of the inner most tube are connected to a cathode respectively, by isolating, perforating and blocking the discharge path, forming a successive discharge path, and coating phosphor on surface of the discharge tubes. The Invention can then have more fluorescent area than a conventional fluorescent lamp of the similar size and higher lumen as well as power transfer factor. Compared with the power consumption of a conventional fluorescent discharge lamp, the Invention therefore has higher luminous flux.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: January 16, 2007
    Inventor: Wen-Tsao Lee
  • Patent number: 7154225
    Abstract: A surface light source device includes a lamp body, a space dividing member, a discharge gas supplying member and a voltage applying part. The lamp body includes a flat shaped space and a fluorescent layer disposed in the flat shaped space to convert an invisible light into a visible light. The space dividing member divides the flat shaped space into a plurality of discharge spaces. The discharge gas supplying member is disposed to pass through the space dividing member and is fixed to the space dividing member, and supplies the discharge spaces with a discharge gas that generates the invisible light. The voltage applying part applies a discharge voltage to the discharge gas. Therefore, the lifetime of the surface light source device generating a planar light is increased, and the luminance of the light becomes uniform so that the display quality of an image is improved.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: December 26, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joong-Hyun Kim, Ki-Yeon Lee, Sang-Yu Lee, Seog-Hyun Cho, Jin-Seob Byun, Dong-Woo Kim
  • Patent number: 7132796
    Abstract: An organic electroluminescent device includes first and second substrates facing and spaced apart from each other, the first and second substrates including a pixel region; a gate line on an inner surface of the first substrate; a data line crossing the gate line; a switching thin film transistor connected with the gate line and the data line; a driving thin film transistor connected with the switching thin film transistor; a power line connected with the driving thin film transistor; a first electrode on an inner surface of the second substrate; a first sidewall and a second sidewall on the first electrode at a boundary of the pixel region, the first sidewall and the second sidewall spaced apart from each other; an electroluminescent layer on the first electrode in the pixel region; a second electrode on the electroluminescent layer in the pixel region; and a connection electrode electrically connected to the first and second substrates.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: November 7, 2006
    Assignee: LG.Philips LCD Co., Ltd
    Inventors: Jae-Yoon Lee, Kyung-Man Kim, Jae-Yong Park, Choong-Keun Yoo, Ock-Hee Kim
  • Patent number: 7091666
    Abstract: An organic electroluminescent display (EL) device which can prevent damage to layers due to a deposition mask in forming a light emitter layer or cathode using a deposition mask, and can prevent the short-circuit between a first electrode formed on a transparent substrate and a second electrode corresponding to the first electrode and can prevent deterioration of layer characteristics, and a method of manufacturing the same.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: August 15, 2006
    Assignee: Samsung Oled Co., Ltd.
    Inventors: Seon Hee Kim, Tae Seung Kim
  • Patent number: 7053552
    Abstract: It is aimed to provide a technique for easily suppressing swellings produced in end parts of partitions, thereby achieving a PDP capable of displaying a high-quality image. A PDP therefore has a plurality of partitions that include: (a) a plurality of main parts; and (b) a plurality of sub parts that each extend from an end part of one of the plurality of main parts parallel to a direction perpendicular to a direction in which the main parts extend. This allows each partition to have an end that is wider than a center part of the partition. In the process of forming PDP partitions, end parts of the partitions are partially heated, after they are baked, to a temperature higher than a softening point of a partition material. As a specific partial heating method, a method with which a laser beam is projected onto an end part is suitable.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: May 30, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Yonehara, Hideki Ashida, Shinya Fujiwara, Yasuyuki Akata, Sadao Uemura, Shigeo Suzuki
  • Patent number: 7034461
    Abstract: A ceramic arc tube for a metal halide discharge lamp is described wherein the lower end well of the arc tube has an internal barrier ridge which substantially prevents migration of the metal halide condensate into the central region of the discharge chamber during vertical operation. The use of the ridge reduces fluctuation in the color temperature of vertically operated lamps and improves efficacy.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: April 25, 2006
    Assignee: Osram Sylvania Inc.
    Inventor: Lori R. Brock
  • Patent number: 7030560
    Abstract: A plasma display panel (PDP) includes a first substrate and a second substrate opposing one another with a predetermined gap therebetween. The first substrate and the second substrate are substantially rectangular in shape with long side edges and short side edges, and are interconnected by frit deposited between the first substrate and the second substrate. The substrates have a predetermined discharge region and predetermined non-discharge regions that surround the discharge region. The PDP also includes barrier ribs mounted between the first substrate and the second substrate. The barrier ribs are mounted at least partly on the discharge region, and at least partly on the non-discharge regions that are adjacent to the long side edges of the substrates.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: April 18, 2006
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ji-Sung Ko, Eun-Gi Heo, Woo-Tae Kim
  • Patent number: 6963159
    Abstract: An image-forming apparatus includes a first substrate, a second substrate, and a spacer that defines the spacing between the first substrate and the second substrate. The spacer has a portion ruggedized with grooves on the surface thereof exposed in the space between the first substrate and the second substrate. The grooves extend in a striped fashion substantially parallel with the first substrate and the second substrate. The ruggedized portion includes a plurality of regions, which are different from each other, in the ruggedized configuration. The image-forming apparatus thus controls an electron beam with a high accuracy, with no disturbance caused by the spacer.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: November 8, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masahiro Fushimi
  • Patent number: 6960881
    Abstract: A plasma display panel is disclosed, which prevents luminance from being reduced, prevents error discharge from occurring due to crosstalk, and improves exhaust ability. Auxiliary barriers or projections are formed in a boundary portion between respective cells in a stripe type barrier structure. Alternatively, a predetermined groove is formed in a predetermined position of a dielectric layer in a lattice shaped barrier structure. In addition to these barriers, second barriers are formed at a greater width or at constant intervals. Thus, exhaust ability can be improved, and error discharge due to crosstalk can be prevented from occurring. Also, luminance in corner portions of the cell can be improved, and contrast can be improved even if a black matrix is not formed.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: November 1, 2005
    Assignee: LG Electronics Inc.
    Inventors: Hun Gun Park, Seok Cheon Ha
  • Patent number: 6956326
    Abstract: The gas discharge tube in accordance with the present invention comprises at least two electrically conductive aperture members disposed within a thermoelectron transmission path between a cathode and an anode, and an insulator for electrically insulating the electrically conductive aperture members from each other, thereby being able to emit light with a high luminance. Its startability at the time of emitting light can be enhanced in particular when the aperture area of the electrically conductive aperture member on the downstream side in the thermoelectron transmission path is set favorably.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: October 18, 2005
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Koji Kawai, Yoshinobu Ito
  • Patent number: 6954029
    Abstract: Disclosed is a member for display apparatus used in a display apparatus comprising a back panel 1 on which electron sources are provided and a front panel 2 that are disposed to oppose the back panel 1 via spacers 3, said member comprising a ceramic that has a Young's modulus (E) of not lower than 120 GPa, a specific rigidity (E/?) of not lower than 40×109 cm, a coefficient of linear expansion of 7.5×10?6 to 10×10?6/° C. in a temperature range from ordinary temperature to 400° C., and a void-occupying area ratio of 6% or less. This member allows it to prevent the accuracy of the apparatus from lowering and cracks from occurring.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: October 11, 2005
    Assignee: Kyocera Corporation
    Inventors: Shunji Mikaki, Kazuyoshi Togo, Naoya Yoneda
  • Patent number: 6940225
    Abstract: A plasma display panel includes a first substrate, a second substrate, and discharge gas filled in a space defined between the first and second substrates, the first substrate including at least one first electrode extending in a first direction, and at least one second electrode extending in parallel with the first electrode, the second substrate including at least one third electrode extending in a second direction perpendicular to the first direction, and a plurality of partition walls extending in the second direction for partitioning a display area, wherein at least one of the first and second electrodes is comprised of a first portion being in the form of a line extending in the first direction, and defining a discharge gap between itself and an adjacent electrode, and a second portion radially extending from the first portion in a direction away from the discharge gap.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: September 6, 2005
    Assignee: Pioneer Plasma Display Corporation
    Inventors: Kota Araki, Akifumi Okigawa, Tadashi Nakamura, Yoshito Tanaka, Toshihiro Yoshioka
  • Patent number: 6924598
    Abstract: An apparatus for providing a visual lightning effect includes a first chamber and a second chamber, where a passageway connects the first chamber and the second chamber. An inert gas is provided within the first chamber, the second chamber, and the passageway. A first contact is located external to the first chamber; and a second contact is located external to the second chamber, wherein an electrode provides a charge to the second contact, wherein the charge causes an electrical discharge between the second contact and the first contact via channels provided by fill material located within the second chamber that traverses the passageway to the first chamber, thereby resulting in the brilliant visual lightning effect.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: August 2, 2005
    Inventor: Wayne Strattman
  • Patent number: 6873107
    Abstract: In order to obtain light of a high luminance in a gas discharge tube of the present invention, a discharge path is narrowed by a first opening 18 and a second opening 13 in collaboration. Further, in order to provide favorable startability in a lamp even when the discharge path is narrowed, a predetermined voltage is applied from the outside to first and second discharge path limiting portions 16, 12. As a result, an active starting discharge which is capable of passing through the first and second openings is produced between a cathode portion 20 and the first and second discharge path limiting portions 16, 12, and thus discharge between the cathode portion 20 and an anode portion 8 is started speedily.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: March 29, 2005
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Koji Kawai, Yoshinobu Ito
  • Patent number: 6870317
    Abstract: In a gas discharge tube 1 of the present invention, a focusing electrode portion 14 and a discharge limiting portion 30 are electrically insulated, and the discharge limiting portion 30 comprises a discharge limiting opening 31 which opposes an arc ball shaping concave portion 16. Thus the formation of a discharge path from a cathode portion 20 to the concave portion 16 is ensured and a starting discharge can be reliably generated. Further, by means of the discharge limiting opening 31 which opposes the concave portion 16, an arc ball S can be continuously maintained in an appropriate shape even when a lamp is illuminated, and thus the arc ball S can be shaped with stability, thereby stabilizing the luminance and light quantity.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: March 22, 2005
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yoshinobu Ito, Koji Kawai, Tsuyoshi Minamizawa
  • Patent number: 6870315
    Abstract: A board for a plasma color display, on which striped barrier ribs for partitioning address electrodes and discharge spaces are formed, and on which phosphor layer stripes emitting light of red, green and blue are formed in the grooves between the respectively adjacent barrier ribs, characterized in that the following relation is satisfied Pb>Pr where Pr is the distance between respectively adjacent barrier ribs for forming a red light emitting phosphor layer, and Pb is the distance between respectively adjacent barrier ribs for forming a blue light emitting phosphor layer, and that the height differences of the barrier ribs within the board face are within ±0.5˜±6 ?m in reference to the average height of the barrier ribs, or characterized in that phosphor layer stripes respectively emitting light of the same color are formed in respectively adjacent two or more grooves.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: March 22, 2005
    Assignee: Toray Industries, Inc.
    Inventors: Yuichiro Iguchi, Yuukichi Deguchi, Michio Takagi, Takaki Masaki, Yuko Mikami
  • Patent number: 6867545
    Abstract: The present invention relates to a plasma display panel that is adaptive for improving color temperature. A plasma display panel according to an embodiment of the present invention includes barrier ribs partitioning off each of the discharge cells; and a light-shielding layer formed along the barrier ribs, the width of the light-shielding layer is different for different discharge cells.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: March 15, 2005
    Assignee: LG Electronics Inc.
    Inventor: Jae Hong Lee
  • Patent number: 6847166
    Abstract: An improved barrier structure of a PDP(Plasma Display Panel) is disclosed. The PDPincludes a pair of substrates opposed to each other at a prescribed interval, a plurality of address electrodes arranged on one of the substrates, a plurality of sustaining electrodes arranged on the other substrate, the sustaining electrodes intersecting the address electrodes, barriers dividing discharge cells while maintaining the prescribed interval between the substrates, and R(Red), G(Green) and B(Blue) fluorescent layers formed between the barriers in order, wherein the barriers are arranged parallel to one another between the address electrodes; a pair or pairs of the barriers corresponding to two fluorescent layers of the R, G and B fluorescent layers are in the form of a stripe and a pair of the barriers corresponding to the other fluorescent layer include bridges extending in a longitudinal direction of the sustaining electrodes as a discharge cell unit.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: January 25, 2005
    Assignee: LG Electronics Inc.
    Inventors: Jae Sung Kim, Young Joon Ahn
  • Patent number: 6838827
    Abstract: A plasma display includes first and second transparent substrates disposed facing each other, a plurality of partitions formed between the first and second transparent substrates, a phosphor formed on inner surfaces of discharge cells defined by the partitions, a stepped buffering layer formed on the first transparent substrate between a one-end portions of the partitions, and a plurality of address electrodes formed on the first transparent substrate between the partitions and on the stepped buffering layer. A thickness of the stepped buffering layer is gradually increased in a longitudinal direction of the partition.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: January 4, 2005
    Assignee: Samsung SDI, Co., Ltd.
    Inventors: Yoshitaka Terao, Takashi Komatsu, Je-Hwan Oh, Yukika Yamada