With Shield Or Additional Electrode Patents (Class 313/492)
  • Patent number: 10158056
    Abstract: An LED package used in a light-emitting device is provided with a function of position correction in mounting by self-alignment, and mounting density of such LED packages is increased. The LED package includes an LED element including an element electrode on a bottom surface, a phosphor layer containing a phosphor and covering a top surface and a side surface of the LED element, and an auxiliary electrode having an upper face bonded to a lower face of the element electrode, wherein the auxiliary electrode is larger than the element electrode, the auxiliary electrode includes a step that makes a lower face smaller than the upper face, and an end portion of the auxiliary electrode on a side where the step is formed is located inside an outer peripheral side of the phosphor layer.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: December 18, 2018
    Assignees: Citizen Electronics Co., Ltd., Citizen Watch Co., Ltd.
    Inventors: Sadato Imai, Masahide Watanabe, Hirohiko Ishii, Koki Hirasawa, Yuji Omori
  • Patent number: 9912307
    Abstract: Devices and related methods use a decoupling loop near closely spaced inductors that couples to each inductor and adds an additional coupling path between them, canceling the effects of the direct coupling between the inductors. When two inductors are close enough that undesired magnetic coupling between the inductors is possible, a decoupling loop adjacent the inductors is added that is configured to cancel the undesired magnetic coupling between the inductors. The decoupling loop is positioned, with respect to the first and second inductors, such that coupling between the decoupling loop and the first inductor induces a decoupling loop current around the decoupling loop and induces a second induced current on the second inductor that is equal and in an opposite direction to a first induced current on the second inductor caused by the first inductor. The undesired magnetic coupling between the conductors is reduced, and may even be totally cancelled.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: March 6, 2018
    Assignee: Qorvo US, Inc.
    Inventor: Timothy D. Lewis
  • Patent number: 9837590
    Abstract: A method of producing a light emitting device includes providing a light emitting element on a base member, the base member including an insulating member and a pair of connection terminals at least on an upper surface thereof. The connection terminals have an exposed portion exposed to outside, with the light emitting element electrically connected to the connection terminals. A covering member is disposed to cover at least a portion of the upper surface of the light emitting element, and a protective layer is disposed to cover at least a portion of the exposed portions of the connection terminals. The covering member is removed, and material from the upper surface side of the base member is supplied to dispose a light-transmissive member on the upper surface of the light emitting element. At least a portion of the light-transmissive member present on the protective layer is then removed.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: December 5, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Takeshi Ikegami, Suguru Beppu, Tatsuya Kanazawa, Yoichi Bando
  • Patent number: 9735326
    Abstract: A method of producing a light emitting device includes providing a light emitting element on a base member, the base member including an insulating member and a pair of connection terminals at least on an upper surface thereof. The connection terminals have an exposed portion exposed to outside, with the light emitting element electrically connected to the connection terminals. A covering member is disposed to cover at least a portion of the upper surface of the light emitting element, and a protective layer is disposed to cover at least a portion of the exposed portions of the connection terminals. The covering member is removed, and material from the upper surface side of the base member is supplied to dispose a light-transmissive member on the upper surface of the light emitting element. At least a portion of the light-transmissive member present on the protective layer is then removed.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: August 15, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Takeshi Ikegami, Suguru Beppu, Tatsuya Kanazawa, Yoichi Bando
  • Patent number: 9716215
    Abstract: A heat sink for an illumination device may include at least one heat sink portion which includes heat-conducting plastic. At least one metallic heat sink portion is at least partially embedded in the plastic material of the heat-conducting plastic.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 25, 2017
    Assignee: OSRAM GMBH
    Inventor: Peter Helbig
  • Patent number: 9613792
    Abstract: An elongated light source envelope is disclosed. The elongated light source comprises an inner wall and an outer wall formed around a longitudinal axis. The inner wall and the outer wall may be connected at a first axial end by a first side wall and a second axial end by a second side wall. The inner wall, outer wall, the first side wall, and the second side wall define an enclosed space internal to the envelope. The light source envelope further comprises one or more walls formed between the inner wall and the outer wall to further form at least a first enclosed region and a second enclosed region within the enclosed space. The first enclosed region may be configured to emit a different spectrum of ultraviolet radiation from the second enclosed region in response to excitation of the first enclosed region and the second enclosed region by microwave radiation.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 4, 2017
    Assignees: Heraeus Noblelight America LLC, Consiglio Nazionale Delle Ricerche
    Inventors: Andrew David Paul Harbourne, Pradyumna Kumar Swain, Iginio Longo, Carlo Ferrari
  • Patent number: 9590623
    Abstract: A touch panel includes a first conductive film having separate areas, each of which has a strip shape with a length direction thereof extending in a first direction, a second conductive film having separate areas, each of which has a strip shape with a length direction thereof extending in a second direction substantially perpendicular to the first direction, and a third conductive film, wherein the separate areas of the first conductive film are arranged side by side in the second direction, and the separate areas of the second conductive film are arranged side by side in the first direction, wherein position detection based on a capacitive method is performed by using the first conductive film and the second conductive film, and wherein a potential of a position of contact between the second conductive film and the third conductive film is detected to detect the position of the contact.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: March 7, 2017
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Mitsuhiro Sekizawa, Satoshi Sakurai, Nobuyoshi Shimizu, Shigemi Kurashima
  • Patent number: 9231172
    Abstract: A screen printing method of LED module with phosphor includes: board preparation providing an LED module board with a substrate and a plurality of LED sources fixed on the substrate. The LED sources are flip chip structural and the metal electrodes thereof are fixed to the bonding pads of the substrate. A screen board is provided with meshes corresponding to the shiny sides of the LED sources of the substrate one by one. A projection of each mesh to the shiny side of the corresponding LED source has similar shape with the shiny side of the LED source. The top of the screen board is printed with allocated colloidal phosphor until each mesh is coated fully. The printed substrates are baked to solidify the phosphor. The periphery of the shiny side is fully coated.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: January 5, 2016
    Assignee: XIAMEN FRIENDLY LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Nuocheng Chen, Yong Liao, Chungyi Lu
  • Patent number: 8895874
    Abstract: Thin indium-less “optically porous” layers adapted to replace traditional ITO layers are provided herein. A thin metalized film adapted to carry an electrical charge can include a dense pattern of small openings to allow the transmission of light to or from an underlying semiconductor material. The pattern of openings can create a regular or irregular grid pattern of low aspect ratio fine-line metal conductors. Creation of this optically porous metalized film can include the printing of a catalytic precursor material, such as palladium in solution in a pattern on a substrate, drying or curing the catalytic precursor, and the deposition of a thin layer of metal, such as copper on the dried precursor to form the final conductive and optically porous film.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: November 25, 2014
    Assignee: Averatek Corp.
    Inventors: Sunity Kumar Sharma, Alex Newsom Beavers, Jr., Thomas Furst
  • Patent number: 8890409
    Abstract: An array of microcavity plasma devices is formed in a unitary sheet of oxide with embedded microcavities or microchannels and encapsulated metal driving electrodes isolated by oxide from the microcavities or microchannels and arranged so as to generate sustain a plasma in the embedded microcavities or microchannels upon application of time-varying voltage when a plasma medium is contained in the microcavities or microchannels.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: November 18, 2014
    Assignee: The Board of Trustees of the University of Illnois
    Inventors: J. Gary Eden, Sung-Jin Park, Taek-Lim Kim, Kwang-Soo Kim
  • Patent number: 8841829
    Abstract: A lamp holder (61) for a gas discharge lamp (5), having at least two receptacles (B1, B2) for at least two pins (P1, P2) of a gas discharge lamp (5), wherein at least one shielding conductor (S1a, S1b, S2a, S2b) is disposed in the vicinity of each receptacle (B1, B2).
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: September 23, 2014
    Assignee: OSRAM GmbH
    Inventors: Bernd Koch, Joachim Mühlschlegel
  • Patent number: 8598773
    Abstract: A hot cathode fluorescent lamp (10) of small diameter is described comprising a shield (17) around the cathode (15) to avoid the formation of blackenings on the phosphors due to evaporated material and a mercury filiform mercury dispenser (20) fixed by a metallic part (18) to the front part of the shield, in such a geometry that said dispenser is turned towards the opposite end of the lamp and its axis is essentially parallel to the axis of the lamp.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: December 3, 2013
    Assignee: SAES Getters S.p.A.
    Inventors: Alessio Corazza, Vincenzo Massaro, Mauro Riva
  • Patent number: 8582058
    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.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: November 12, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Yasuyuki Arai
  • Publication number: 20130088141
    Abstract: An electrode for a hot cathode fluorescent lamp may include a main body that emits thermions, a conductive support that supports the main body, and a lead electrically connected to the conductive support. The main body includes no filament structure and may be made of a bulk material having a columnar shape or an ingot shape formed by a conductive mayenite compound.
    Type: Application
    Filed: November 27, 2012
    Publication date: April 11, 2013
    Inventors: Naomichi MIYAKAWA, Kazuhiro ITO, Satoru WATANABE, Toshinari WATANABE, Shigeo MIKOSHIBA
  • Patent number: 8264136
    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.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: September 11, 2012
    Assignees: Inova Inc., Santoma Ltd.
    Inventor: Man Sun Yun
  • Patent number: 8179031
    Abstract: A surface light source includes a plate type light source body having a sealed discharging space formed therein, a plate type electrode unit having a plurality of regions adjacent to at least one major surface of the light source body, and a multiple voltage applying unit operable to apply voltages independently to each of the plurality of regions. In this way, brightness of the surface light source can be controlled independently in each of the plurality of regions and a local dimming for a surface light source can be realized.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: May 15, 2012
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Seok Mo Ban, Ki Yeon Lee, Kyeong Taek Jung, Hyung Bin Youn, Keun Seok Lee, Dong Hee Lee, Won Do Kee, Yong Keun Jee
  • Patent number: 8134289
    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].
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: March 13, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.
    Inventors: Tsutomu Morioka, Toshiaki Suto, Fumihiko Yoshimura
  • Patent number: 8134294
    Abstract: Disclosed herein is a low pressure discharge lamp having a coating disposed upon at least a portion of inner lead-in wires, wherein the coating comprises refractory nanoparticles. Also disclosed herein, in particular, are fluorescent lamps having a coating disposed upon at least a portion of inner lead-in wires, the coating comprising refractory oxide nanoparticles having a median primary particle size of less than about 70 nm, with a thickness of from about 0.5 micrometer to about 10 micrometer. Disclosed advantages may include lessened end discoloration over the operational lifetime of the lamp, enhanced lumen maintenance, and inhibited mercury consumption.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: March 13, 2012
    Assignee: General Electric Company
    Inventor: Jon Bennett Jansma
  • Patent number: 8100555
    Abstract: It is a lighting apparatus 10 that has a light emitting element 16, a light emitting element housing 15 having a concave portion 28 that accommodates the light emitting element 16, and an optically transparent member 18 that airproofs a space B formed by the concave portion 28 and transmits light emitted from the light emitting element 16. The concave portion 28 is shaped to become wider toward the optically transparent member 18 from the bottom surface 28A of the concave portion 28. The lighting apparatus 10 is provided with a light shielding member 12 for shielding a part of light emitted from the light emitting element 16 is provided on the optically transparent member 18.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: January 24, 2012
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventors: Mitsutoshi Higashii, Kei Murayama, Yuichi Taguchi, Masahiro Sunohara, Akinori Shiraishi
  • Patent number: 8013807
    Abstract: A display apparatus includes a plasma display panel (PDP) having an upper substrate at which black matrices are disposed. The apparatus includes an external light shield having a panel side facing a display surface of the PDP and an opposing viewer side facing away from the display surface. The light shield includes a base unit and includes pattern units that absorb external light from the viewer side. The pattern units have boundaries defined by intersections of the pattern units and the base unit. The boundaries define widths of pattern tops disposed toward the panel side or the viewer side and define widths of pattern bottoms disposed toward the other of the panel side and the viewer side. A distance between a pair of adjacent black matrices is 4 to 12 times greater than a distance between adjacent boundaries, of a pair of adjacent pattern units, at adjacent pattern bottoms.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: September 6, 2011
    Assignee: LG Electronics Inc.
    Inventors: Hong Rae Cha, Ji Hoon Sohn, Sam Je Cho, Woo Sung Jang, Woon Seo Shin
  • Patent number: 7919913
    Abstract: A light illuminating element including a transparent closed casing, an exciting gas, a first exciting coating, and a first dielectric multi-layer long-pass filter is provided. The transparent closed casing has a first inner side, a second inner side, a first outer side corresponding to the first inner side, and a second outer side corresponding to the second inner side. The exciting gas is disposed inside the transparent closed casing, and suitable for providing an ultraviolet light. The first exciting coating is disposed on the first inner side or the first outer side, and is suitable for absorbing the ultraviolet light to provide a visible light. The first dielectric multi-layer long-pass filter is disposed on the second inner side or the second outer side, and suitable for reflecting the ultraviolet light and allowing the visible light to pass through.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: April 5, 2011
    Inventor: Jenn-Wei Wii
  • Patent number: 7919914
    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.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: April 5, 2011
    Assignee: Sony Corporation
    Inventors: Hiroshi Takahashi, Yukio Hara, Masahiro Kikuchi, Yoshiichi Horikoshi, Hiroto Watanabe, Ryouichi Yoshida
  • Patent number: 7902753
    Abstract: An electroluminescent display device includes first and second substrates facing each other and having a pixel region and a non-pixel region; a thin film transistor and an array layer on an inner surface of the first substrate; a first electrode on an inner surface of the second substrate; a buffer layer on the first electrode in the non-pixel region; a shielding pattern on the buffer layer; a separator on the shielding pattern; an emitting layer on the first electrode in the pixel region; a second electrode on the emitting layer; and a connection electrode between the first and second substrates.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: March 8, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: In-Jae Chung, Ki-Yong Kim, Sung-Joon Bae, Jae-Yong Park
  • Patent number: 7759853
    Abstract: This relates to a backlight unit that is adaptive for reducing leakage current. A backlight unit according to an embodiment of the present invention includes: a plurality of lamps; a common electrode electrically connected to an electrode of any one of the lamps; and a lower side support that supports the common electrode and that includes a shielding part, wherein the shielding part is in between a portion of the common electrode and the electrode.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: July 20, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Nyuck Park, Shin Woo Yang
  • Patent number: 7755287
    Abstract: A display panel device includes a front sheet that is glued on a front face of a plasma display panel. The front sheet includes a mesh made of a light shield member that has a blackened front surface and a plane size larger than a screen. A length between diagonal lattice points of the mesh is shorter than a cell pitch that is longer one of the cell pitches in the vertical direction and the horizontal direction of the screen. An arrangement direction of the mesh is inclined with respect to an arrangement direction of the cells in the screen.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: July 13, 2010
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Nobuyuki Hori, Yoshimi Kawanami, Atsuo Ohsawa, Fumihiro Namiki
  • Patent number: 7750546
    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.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: July 6, 2010
    Assignee: Sony Corporation
    Inventors: Hiroshi Takahashi, Yukio Hara, Masahiro Kikuchi, Yoshiichi Horikoshi, Hiroto Watanabe, Ryouichi Yoshida
  • Patent number: 7733441
    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.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: June 8, 2010
    Assignee: Semiconductor Energy Labortory Co., Ltd.
    Inventors: Satoshi Seo, Yasuyuki Arai
  • Patent number: 7728501
    Abstract: An image display apparatus includes an envelope, first to third electroconductive members disposed in the envelope, a plate-like spacer disposed between the first and third members and between the second and third members, and a circuit for supplying a potential to the first member and supplying a potential lower than that of the first member to the second and third members. When a sheet resistance between a first region of the spacer to which the potential is supplied from the first member and a second region of the spacer to which the potential is supplied from the second member is defined as ?f [?/?] and a sheet resistance between a third region of the spacer to which the potential is supplied from the third member and a region located between the first and second regions is defined as ?r [?/?], a condition 1/100<?r/?f?40 is satisfied.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: June 1, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Hori
  • Patent number: 7728500
    Abstract: In an electrodeless discharge lamp suitable for use at a place with unfavorable environmental conditions or at a place where lamp replacement is difficult, the replacement of a lamp unit is facilitated and the lamp unit is prevented from falling off from a power coupler unit even if there is component deterioration caused by long-term use. A metallic elastic member is provided near a position on a metallic heat conduction member of the power coupler unit that is farthest from an electromagnetic field generating portion. In addition to an ordinary coupling structure between the power coupler unit and a coupling member, the elastic member is engaged with the coupling member of the lamp unit. When the lamp unit is mounted on or removed from the power coupler unit, a bulb of the lamp unit is turned relative to the power coupler unit about the axis and moved forward/backward in the direction of the axis.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: June 1, 2010
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Hiroshi Ogasawara, Hidenori Kakehashi, Ryusuke Ura, Hiroshi Miyasaki, Keisuke Harada, Yoshinobu Shibata, Shigeki Matsuo, Kazuhiko Sakai
  • Patent number: 7692388
    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.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: April 6, 2010
    Assignee: Honeywell International Inc.
    Inventor: Scot Olson
  • Patent number: 7659657
    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.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: February 9, 2010
    Assignee: Mirae Corporation
    Inventors: Chung Soo Kim, Do Young Cho, Jong Lee Park, Hwan Woong Lee
  • Patent number: 7598662
    Abstract: A compact self-ballasted fluorescent lamp includes a double-spiral arc tube and a holder. The holder has a tubular protrusion which is surrounded by the arc tube, at a center of its main surface. A closed end of the protrusion and a part of the arc tube facing the end of the protrusion are bonded together using a silicone adhesive. A part of a vertical printed circuit board that is used as a lighting circuit is housed within the protrusion.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: October 6, 2009
    Assignee: Panasonic Corporation
    Inventors: Masahiro Miki, Hiroki Kitagawa
  • Patent number: 7560863
    Abstract: An electroluminescent display device includes first and second substrates facing each other and having a pixel region and a non-pixel region; a thin film transistor and an array layer on an inner surface of the first substrate; a first electrode on an inner surface of the second substrate; a buffer layer on the first electrode in the non-pixel region; a shielding pattern on the buffer layer; a separator on the shielding pattern; an emitting layer on the first electrode in the pixel region; a second electrode on the emitting layer; and a connection electrode between the first and second substrates.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: July 14, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: In-Jae Chung, Ki-Yong Kim, Sung-Joon Bae, Jae-Yong Park
  • Patent number: 7535161
    Abstract: An improved flat fluorescent lamp and a display device having the same are disclosed, by which a luminance can be improved and a driving voltage can be reduced. The flat fluorescent lamp may include: a lower substrate; an upper substrate combined with the lower substrate to provide a discharge area; a plurality of walls partitioning the discharge area to provide a plurality of discharge units; first and second voltage-applying electrodes disposed at opposite ends of each discharge unit, the first and second voltage-applying electrodes being exposed; first and second discharge electrodes formed on the first and second voltage-applying electrodes, respectively; a dielectric layer coated on the first and second voltage-applying electrodes; and a fluorescent layer formed on the discharge area.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: May 19, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventor: Bong-Kyung Suk
  • Patent number: 7528536
    Abstract: Forming a protective layer such as chromium, chrome alloys, nickel or cobalt as a cap over an aluminum film protects an underlying ITO layer from corrosion during the fabrication of flat panel displays such as field emission devices and the like. The presence of the protective layer during fabrication processes such as photolithography prevents diffusion of solutions through the aluminum into the ITO. This protective layer is especially effective during the development and resist stripping stages of photolithography which use solutions or solvents that would otherwise cause reductive corrosion of ITO in contact with aluminum. The methods and apparatus described herein are particularly advantageous for the fabrication of flat panel displays such as field emission devices and other display devices, because ITO is often used in such devices in contact with aluminum while exposed to corrosion-inducing media.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: May 5, 2009
    Assignee: Micron Technology, Inc.
    Inventor: Robert J. Hanson
  • Patent number: 7521848
    Abstract: A plasma display apparatus including a plasma display panel, a chassis base coupled with the plasma display panel, a printed circuit board assembly coupled with the chassis base, a case housing the plasma display panel, the chassis base, and the printed circuit board assembly, and a liquid shielding plate for receiving liquid entering the apparatus.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: April 21, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ki-Jung Kim, Kyoung-Ho Kang
  • Patent number: 7504778
    Abstract: An external electrode fluorescent lamp includes a ferroelectric glass tube filled with discharge gas, and a ferroelectric film on an internal surface of the ferroelectric glass tube.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: March 17, 2009
    Inventor: Jae Bum Kim
  • Patent number: 7492084
    Abstract: A flat-type fluorescent lamp includes a body having a plurality of discharge spaces, an electrode part disposed inside the body and crossing each of the discharge spaces and a light generating part generating a visible light by using the emitted electron. The electrode part includes an electron-transporting electrode transporting electrons from an exterior and an electron-emitting electrode on the transporting electrode to activate emission of the electrons to the discharge spaces. The flat-type fluorescent lamp has high brightness and low power consumption.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: February 17, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hae-Il Park, Sang-Yu Lee, Jin-Seob Byun
  • Publication number: 20080272684
    Abstract: A method for producing a plasma display panel wherein the projection of the end portions of electrode in the widthwise direction are suppressed so that failure in insulation and pressure proof is not caused upon forming an electrode pattern by collectively exposing and developing a bus electrode having a two-layered structure. When the electrode pattern having two-layered structure by a photolithography method using a mask, exposure is made by applying light, while a part of a surface of portion of a paste film of an electrode material which portion to be formed into the electrode pattern is shield from the light, so that a dent is formed in the electrode surface after developing and the thermal shrinkage of the center portion and the thermal shrinkage of the end portions of the electrode in the widthwise direction are controlled separately by the dent.
    Type: Application
    Filed: March 27, 2008
    Publication date: November 6, 2008
    Inventors: Akihiro HORIKAWA, Toshifumi NAGINO
  • Publication number: 20080191602
    Abstract: A plasma display panel and a method for manufacturing the same. The plasma display panel includes: a first substrate; sustain electrodes on the first substrate, each being composed of an X electrode and a Y electrode; a first dielectric layer covering the sustain electrodes; a protective layer on the first dielectric layer; a second substrate facing the first substrate; address electrodes on the second substrate and crossing the sustain electrodes; a second dielectric layer covering the address electrodes; and barrier ribs for partitioning discharge spaces between the first substrate and the second substrate; and a phosphor layer at sides of the barrier ribs. Here, the protective layer is a single deposition layer having a non-uniform thickness, the sustain electrodes are located to correspond to a first region of the protective layer, and the first region of the protective layer is thicker than a second region of the protective layer.
    Type: Application
    Filed: January 23, 2008
    Publication date: August 14, 2008
    Inventor: Dong-hyun Kim
  • Patent number: 7394199
    Abstract: Cathode unit for installation in a fluorescent tube body (3) belonging to a fluorescent tube (1), which cathode unit (5) comprises a cathode screen (15a, 15, 15?-15??) which partially surrounds an electrode (9) which is electrically insulated from the said cathode screen (15), a power supply device (11) arranged to make an electrical connection between the said electrode (9) and a contact (13), the said cathode screen (15a, 15 , 15?-15??) comprising a first end (19) facing towards the discharge, which first end (19) comprises a central opening (21), and a second end (39) facing towards the said contact (13). The first end (19) of the cathode screen (15a, 15, 15?-15??) is designed with a rounded-off part (25) in order to facilitate the insertion of the cathode unit (5) in the said fluorescent tube body (3).
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: July 1, 2008
    Assignee: Auralight Intérnational AB
    Inventors: Folke Axelsson, Patrik Olsson, Mikael Severinsson
  • Patent number: 7256538
    Abstract: In an AC-driven gas discharge display device and especially a plasma tube array type, a return path is provided for alternate discharge current flowing between X and Y driver circuits. The AC-driven gas discharge display device comprises a front-side, transparent substrate and a rear-side substrate sandwiching therebetween a plurality of thin discharge tubes arranged side by side; a plurality of pairs of display electrodes on an inner surface of the front-side substrate; and a plurality of address electrodes, in a direction transverse to the plurality of display electrodes, the rear-side substrate on an inner surface. Striped light-blocking, electrically conductive films are disposed on an outer surface of the front-side substrate at locations between respective ones of the pairs of display electrodes and coupled at their opposite ends to respective points of a common reference potential in the X- and Y-electrode driver circuits, respectively, to provide a return path for alternate discharge current.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: August 14, 2007
    Assignee: Shinoda Plasma Corporation
    Inventors: Manabu Ishimoto, Hitoshi Hirakawa, Kenji Awamoto, Akira Tokai, Koji Shinohe
  • Patent number: 7215082
    Abstract: An electrodeless self-ballasted fluorescent lamp includes: a luminous bulb 1 having a cavity portion 15; an induction coil 3 inserted in the cavity portion 15; a ballast 4 electrically connected to the induction coil 3; and a base 7, wherein the luminous bulb 1, the ballast 4 and the base 7 are configured as one unit. The luminous bulb 1 includes an approximately spherical outer tube 12 and an inner tube 11. At least the surface of the upper hemisphere of the outer tube 12 is coated with a silicone rubber 10 having the property of transmitting light.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: May 8, 2007
    Assignee: Matsushita Electric Industrial Co, Ltd.
    Inventors: Takeshi Arakawa, Akira Hochi, Tomohiro Sawa, Mitsuharu Kawasaki
  • Patent number: 7098593
    Abstract: The present invention relates to a stationary ion cold cathode fluorescent lighting system comprising a cold cathode fluorescent lamp with a radial D. C. electric field established therein so as to sufficiently energize electrons ionized therein through a process of chain collision and reduce the radial velocity of mercury ions (Hg+2) and argon ions (Ar+2) ionized therein to a virtual zero when touching a phosphor layer on the inside surface of the lamp, preventing the phosphors from being bombarded by the ions and forming an amorphous layer thereon, and preventing mercury from embedding in the phosphor layer, and with an axial anti-equivalent D. C. electric field established between electrodes of the lamp so as to prevent mercury from accumulating on the electrodes and to maximize the life of the phosphor layer as well as the lamp.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: August 29, 2006
    Inventor: Ming-Ching Teng
  • Patent number: 7088033
    Abstract: An electrodeless lamp includes a bulbous lamp envelope enclosing an inert gas and a vaporizable metal fill, the lamp envelope having a reentrant cavity and an envelope bottom, an electromagnetic coupler positioned within the reentrant cavity, and a thermal shield positioned in proximity to the envelope bottom and configured to increase the temperature of the envelope bottom. By increasing the temperature of the envelope bottom, a cold spot is prevented. As a result, light output at low temperatures is comparable to light output at room temperature.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: August 8, 2006
    Assignee: Matsushita Electric Works Ltd.
    Inventors: Robert T. Chandler, Oleg Popov, Jakob Maya
  • Patent number: 7019334
    Abstract: Whereas incandescent light bulbs and other similar light sources known in the prior art emit light in all directions, LED lamps emit light in a single direction only, and this is manifested in the problem of being unable to achieve light distribution characteristics satisfied by conventional headlamp designs. The present invention realizes an LED lamp for a light source of a headlamp disposing an LED chip 2 in the vicinity of the focus of a projection means and providing a shielding member 7 covering a portion of the LED chip 2 in a formation allowing a light distribution characteristic suitable for a vehicle front-illumination light to be obtained when light from the LED chip 2 is magnified and projected in an illumination direction by a projection lens 10 or the like constituting the projection means; accordingly, accurate light distribution characteristics can be obtained in a simple manner by projecting in the illumination direction using the projection lens 10.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: March 28, 2006
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Yasushi Yatsuda, Takashi Ebisutani, Teruo Koike, Takuya Kushimoto, Ryotaro Owada, Masafumi Ohno, Takashi Futami
  • Patent number: 6992646
    Abstract: A plasma display panel including a first substrate carrying thereon a plurality of strip-shaped ribs arranged parallel to each other, a fluorescent material applied between adjacent ribs and a plurality of address electrodes arranged parallel to the ribs and a second substrate being arranged to oppose to the first substrate and carrying thereon a plurality of sustain electrodes arranged in a direction crossing the address electrodes, wherein each of the address electrodes between adjacent ribs includes a plurality of branch electrodes which are diverged through almost the whole length of the ribs.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: January 31, 2006
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Noriaki Setoguchi, Seiki Kurogi
  • Patent number: 6977469
    Abstract: Low-pressure mercury vapor discharge lamp comprising a discharge vessel (10) having a first and a second end portion (12a, 12b), the discharge vessel (10) containing mercury and a rare gas, wherein the end portions (12a, 12b) each support an electrode (20a,20b) arranged in the discharge vessel (10) for initiating and maintaining a discharge in the discharge vessel (10), wherein an electrode shield (22a,22b) substantially encompasses at least one of the electrodes (20a,20b), and wherein said electrode shield (22a,22b) comprises an inner wall (23a) and an outer wall (24a), said walls (23a,24a) being spaced apart.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: December 20, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Peter Arend Seinen, Josephus Theodorus Van Der Eyden
  • Patent number: 6903710
    Abstract: A method of driving a display device assumes a specific pixel on a retina that is formed on the retina based on an input image, and controls light emission of each subframe such that luminance of a specific pixel on the retina becomes substantially equal to luminance of a pixel corresponding to the input image. The display device is driven by constructing one frame with a plurality of subframes, for displaying the input image that moves on a display panel.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: June 7, 2005
    Assignees: Fujitsu Hitachi Plasma Display Limited
    Inventors: Takayuki Ooe, Toshio Ueda, Kosaku Toda, Kyoji Kariya, Shigeo Mikoshiba, Tomokazu Shiga, Makiko Yamada
  • Patent number: 6891323
    Abstract: An amalgam assembly for a fluorescent lamp includes an exhaust tubulation closed at a free end thereof, a glass ball disposed in the tubulation, and a mercury amalgam body disposed in the tubulation between the glass ball and the tubulation closed end. The tubulation is provided with a pinched portion comprising a plurality of inwardly extending dimples separated from each other and adapted to engage the glass ball to retain the glass ball on a central axis of the tubulation. The glass ball rests on the dimples concentrically and gaps between the dimples allow gas to pass therethrough between the glass ball and an inside surface of the tubulation.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: May 10, 2005
    Assignee: Osram Sylvania Inc.
    Inventors: Joseph V. Lima, Richard S. Speer