And Additional Layer On Member Patents (Class 313/587)
  • Patent number: 8294365
    Abstract: A plasma display panel has a front substrate, a rear substrate, and a phosphor layer. The front substrate has a dielectric layer formed so as to cover a plurality of display electrodes disposed on a substrate, and a protective layer formed on the dielectric layer. The rear substrate is faced to the front substrate so as to form discharge space, has data electrodes in the direction intersecting with the display electrodes, and has barrier ribs for partitioning the discharge space. The phosphor layer is formed by applying phosphor ink that is made of a phosphor material and dispersant between the barrier ribs of the rear substrate. Nano-particles with a diameter of a range of 1 nm to 100 nm inclusive, or a solvent having an affinity for the dispersant of the phosphor ink is applied to the surfaces of the barrier ribs, and then the phosphor ink is applied to them, thereby forming the phosphor layer.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: October 23, 2012
    Assignee: Panasonic Corporation
    Inventors: Shougo Nasu, Hisayo Oohata, Kenji Sato, Syouzou Ninomiya, Kenji Hasegawa
  • Patent number: 8294366
    Abstract: A PDP includes a front panel including display electrode (6) formed on glass substrate (3), dielectric layer (8) covering display electrode (6), and protective layer (9) formed on dielectric layer (8); and a rear panel opposing to the front panel to form a discharge space filled with discharge gas, and including an address electrode formed along a direction intersecting with display electrode (6), and a barrier rib partitioning the discharge space, wherein protective layer (9) is formed of a metal oxide made of magnesium oxide and calcium oxide and contains aluminum, and a diffraction angle where a peak of the metal oxide occurs exists between a diffraction angle where a peak of the magnesium oxide occurs and a diffraction angle where a peak of the calcium oxide occurs in an X-ray diffraction analysis on a surface of protective layer (9).
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: October 23, 2012
    Assignee: Panasonic Corporation
    Inventors: Jun Hashimoto, Masashi Gotou, Eiji Takeda, Takayuki Shimamura
  • Patent number: 8294342
    Abstract: An optical sheet capable of enhancing contrast is provided. The optical sheet includes a layer configured to control light incident on the layer and then allow the light to exit towards the observer side. The optical sheet includes: an optical functional sheet layer having multiple prisms capable of transmitting light and multiple light-absorbing parts capable of absorbing light, the multiple prisms and multiple light-absorbing parts being arranged alternately along a sheet plane of the optical sheet; and an electromagnetic-wave shield layer. The electromagnetic-wave shield layer is positioned on a side opposite to the observer side relative to the optical functional sheet layer.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: October 23, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Tsuyoshi Kashiwagi, Yousuke Ezaki, Yukihiro Makita, Takayuki Niijima
  • Patent number: 8288948
    Abstract: A plasma display panel including a front substrate and a rear substrate facing each other; a barrier wall interposed between the front substrate and the rear substrate, including base portions arranged on either side of a main discharge space and protruding portions protruding on the base portions, and defining stepped spaces on either side of the main discharge space; a scan and a sustain electrode pair including a pair of bus electrodes disposed in the main discharge space and a pair of transparent electrodes extending from the bus electrodes toward the stepped space; an address electrode that generates, together with the scan electrode, an address discharge and crossing the scan electrode; a phosphor layer formed across the main discharge space and the stepped spaces; and a discharge gas filled in the main discharge space and the stepped spaces.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: October 16, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Eui-Jeong Hwang, Seung-Hyun Son
  • Patent number: 8283864
    Abstract: A plasma display panel has a front plate, and a rear plate arranged so as to be opposed to the front plate. The front plate has a display electrode, a dielectric layer to cover the display electrode, and a protective layer to cover the dielectric layer. The protective layer has a luminescence peak in a wavelength ranging from not less than 350 nm to not more than 550 nm under irradiation of light having a wavelength of 146 nm. In addition, the protective layer has a luminescence peak in a wavelength ranging from not less than 350 nm to not more than 550 nm under irradiation of light having a wavelength of 173 nm. A ratio A/B between a peak intensity of luminescence under the light having the wavelength of 146 nm and a peak intensity of luminescence under the light having the wavelength of 173 nm falls within a range from more than 3.0 to not more than 7.0.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: October 9, 2012
    Assignee: Panasonic Corporation
    Inventors: Hideji Kawarazaki, Keiji Horikawa, Chiharu Koshio, Kanako Okumura
  • Patent number: 8278824
    Abstract: Electrode and electrode pad configurations for a gas discharge device having one or more substrates and a multiplicity of pixels or sub-pixels that are defined by a hollow plasma-shell filled with an ionizable gas. The invention is described with reference to a plasma-dome, but other plasma-shell geometric shapes may be used including plasma-discs and plasma-spheres.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: October 2, 2012
    Assignee: Imaging Systems Technology, Inc.
    Inventors: Carol Ann Wedding, Daniel K. Wedding, Oliver M. Strbik, III
  • Patent number: 8274222
    Abstract: A plasma display panel has a front plate and a rear plate disposed so as to face the front plate. The front plate includes display electrodes, a dielectric layer formed to coat the display electrodes, and a protective layer formed to coat the dielectric layer. The protective layer includes a base layer formed on the dielectric layer, and a plurality of particles dispersed in the base layer. The base layer has nanocrystalline particles made of magnesium oxide and having an average particle diameter in the range of at least 10 nm to at most 100 nm. The particles are aggregated particles in which a plurality of metal oxide crystal particles are aggregated. The aggregated particles have an average particle diameter at least twice to at most four times as large as a film thickness of the base layer.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: September 25, 2012
    Assignee: Panasonic Corporation
    Inventors: Yoshinao Ooe, Koyo Sakamoto, Sadahiro Goto, Yoshiyuki Hisatomi, Kengo Kigami, Kaname Mizokami, Takeshi Kokura
  • Patent number: 8269419
    Abstract: A plasma display panel equipped with a front substrate and a back substrate facing each other to form a discharge space. On the discharge space side of the front substrate there are disposed a metal oxide layer and magnesium oxide crystal particles. An area ratio of the magnesium oxide crystal particles to the metal oxide layer is 0.1% to 85%.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: September 18, 2012
    Assignee: Panasonic Corporation
    Inventors: Taro Naoi, Hai Lin, Eishiro Otani, Hiroshi Ito
  • Patent number: 8259448
    Abstract: An image display device is provided with a chassis supporting a display panel on its front surface, circuit boards arranged within a specific region of the back surface of the chassis, a back cover having an edge portion that covers the outside of the specific region of the back surface of the chassis and a projecting portion that accommodates the circuit boards, and a fan arranged inside the space defined by projecting portion. The projecting portion includes a main wall and a peripheral wall, and the peripheral wall is provided with an air inlet and an air outlet. The edge portion is provided with a sound absorbing material on its outer wall surface in the vicinity of the air outlet.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: September 4, 2012
    Assignee: Panasonic Corporation
    Inventor: Takayuki Furukawa
  • Patent number: 8258701
    Abstract: A plasma display panel equipped with a front substrate and a back substrate facing each other to form a discharge space. On the discharge space side of the front substrate there are disposed a metal oxide layer and magnesium oxide crystal particles. Among the magnesium oxide crystal particles there are magnesium oxide crystal particles having a particle diameter of at least 3500 angstroms.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: September 4, 2012
    Assignee: Panasonic Corporation
    Inventors: Taro Naoi, Hai Lin, Eishiro Otani, Hiroshi Ito
  • Patent number: 8253333
    Abstract: A plasma display panel equipped with a front substrate and a back substrate facing each other to form a discharge space. On the discharge space side of the front substrate there are disposed a metal oxide layer and magnesium oxide crystal particles. The magnesium oxide crystal particles are arranged on the discharge space side of the metal oxide layer, or alternatively, part of the magnesium oxide crystal particles are disposed within the metal oxide layer.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: August 28, 2012
    Assignee: Panasonic Corporation
    Inventors: Taro Naoi, Hai Lin, Eishiro Otani, Hiroshi Ito
  • Patent number: 8247970
    Abstract: A PDP (Plasma Display Panel) comprising a front substrate structure (first substrate structure) in which two pairs of an X electrode and a Y electrode and a non-emission area therebetween are formed, and a plurality of light-shielding films formed with spacing from the X electrode and the Y electrode in the non-emission area. The light-shielding film contains a metal material common with a metal material forming the X electrode and the Y electrode. And, the light-shielding film is formed in an island-shape having spacing from a neighboring barrier rib formed to a rear substrate structure (second substrate structure). According to the above structure, the area of the light-shielding film which may cause a capacitance-coupled portion with the X electrode, the Y electrode, or an address electrode can be made small, thereby suppressing capacitance coupling even when a conductive material is used to the light-shielding film.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: August 21, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Noriaki Setoguchi, Masahiro Sawa, Yuji Kobayashi
  • Patent number: 8237363
    Abstract: A plasma display panel includes a front panel including a substrate, a display electrode formed on the substrate, a dielectric layer formed so as to cover the display electrode, and a protective layer formed on the dielectric layer; and a rear panel disposed facing the front panel so that discharge space is formed, and including an address electrode formed in a direction intersecting the display electrode and a barrier rib for partitioning the discharge space. The protective layer is formed by forming a base film on the dielectric layer and attaching a plurality of aggregated particles of a plurality of crystal particles of metal oxide to the base film so that a plurality of aggregated particles are distributed over the entire surface, and the base film is made of MgO containing Al.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: August 7, 2012
    Assignee: Panasonic Corporation
    Inventors: Kaname Mizokami, Shinichiro Ishino, Koyo Sakamoto, Akira Shiokawa, Hiroyuki Kadou, Yoshinao Ooe, Hideji Kawarazaki, Kazuo Uetani
  • Patent number: 8237362
    Abstract: A plasma display panel (PDP) and a method of manufacturing the same with improved luminous efficiency. The PDP includes: a first substrate; a second substrate facing the first substrate; a plurality of sustain electrode pairs between the first substrate and the second substrate and extending in a first direction; a plurality of address electrodes on the second substrate and extending in a second direction crossing the first direction; a first dielectric layer on the second substrate for covering the address electrodes; a discharge enhancement layer on the first dielectric layer; a plurality of barrier ribs on the discharge enhancement layer and defining discharge cells between the first and second substrates; and phosphor layers in the discharge cells, wherein the discharge enhancement layer has an opening in each of the discharge cells, and wherein the barrier ribs have a roughness less than that of the discharge enhancement layer.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: August 7, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyun-Chul Kim, Hyoung-Bin Park, Sang-Hyuck Ahn, Sang-Ho Jeon, Seung-Hyun Son, Gi-Young Kim, Sil-Keun Jeong, Sung-Hyun Choi, Jung-Min Kim
  • Patent number: 8227972
    Abstract: A display filter includes a base film disposed on a display panel. The base film includes a phototransmissive unit having a constant horizontal cross-sectional area, and a light absorbing unit which includes a light absorbing material and surrounds the phototransmissive unit. A plasma display panel (PDP) may include the display filter. The display filter may improve ambient contrast by increasing the transmittance of light emitted by a display panel and by blocking externally incident light.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: July 24, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yeon-Joo Choi, Cha-Won Hwang, Sang-Mi Lee, Seung-Goo Baek
  • Patent number: 8222816
    Abstract: A multi plasma display panel is disclosed. The multi plasma display panel includes a plurality of plasma display panels positioned adjacent to one another, each of the plurality of plasma display panels including, a front substrate on which a first electrode is positioned, a rear substrate on which a second electrode crossing the first electrode is positioned, a barrier rib between the front substrate and the rear substrate, the barrier rib providing a plurality of discharge cells, and an exhaust hole on the rear substrate. The exhaust hole is formed in at least one of the plurality of discharge cells. A size of a discharge cell in which the exhaust hole is formed is greater than a size of at least one discharge cell in which the exhaust hole is not formed.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: July 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Soomyun Lee, Yonggi Choi, Kyungtae Kim
  • Patent number: 8222813
    Abstract: A vacuum flat panel display including: a plurality of electrically addressable pixels; a plurality of thin-film transistor driver circuits each being electrically coupled to an associated at least one of the pixels, respectively; a passivating layer on the thin-film transistor driver circuits and at least partially around the pixels; a conductive frame on the passivating layer, said frame and pixel area coated with an insulator; and, a plurality of cathode emitters are deposited on the coated frame while phosphor is deposited on the coated pixel; wherein, exciting the cathode emitters and addressing one of the pixels using the associated driver circuit causes the emitted electrons to induce one of the pixels to emit light. By introducing a noble gas or mixture, and a ML layer having a DC, AC or pulsed voltage applied thereto, one creates a plasma to form a sheath boundary at the insulator causing electron multiplication and increased illumination.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: July 17, 2012
    Assignee: Copytele, Inc.
    Inventors: Denis Krusos, Anthony Campisi
  • Patent number: 8222815
    Abstract: A PDP includes a first substrate and a second substrate facing each other, a plurality of first discharge electrodes on the first substrate, a first dielectric layer covering the plurality of first discharge electrodes, and a plurality of second discharge electrodes on the second substrate to cross the plurality of first discharge electrodes, wherein a difference between thermal expansion coefficients of the first substrate and the first dielectric layer is greater than or equal to about 2×10?7/° C. and less than or equal to about 17×10?7/° C.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: July 17, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Joung Kweon, Sung-Hune Yoo
  • Patent number: 8222814
    Abstract: The present invention improves discharge characteristics of a protective layer in order to provide a PDP that exhibits excellent display performance even if the PDP is of a fine-cell structure. The present invention also provides a manufacturing method for the PDP. In particular, a protective layer 8 is composed of an MgO film layer 81 and an MgO particle layer 82 that is made of MgO particles 16. The MgO particles 16 are formed by burning an MgO precursor and satisfy that a/b?1.2, where a denotes a spectrum integral value in a wavelength region of a CL spectrum from 650 nm to 900 nm, exclusive of 900 nm, and b denotes a spectrum integral value in a wavelength region of the CL spectrum from 300 nm to 550 nm, exclusive of 550 nm.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: July 17, 2012
    Assignee: Panasonic Corporation
    Inventors: Masaharu Terauchi, Yusuke Fukui, Takuji Tsujita, Michiko Okafuji, Mikihiko Nishitani
  • Patent number: 8216017
    Abstract: In a method of fabricating a planar light source, a first substrate is formed at first. First electrodes approximately parallel to each other are formed on the first substrate. Sets of first dielectric patterns are formed on the first substrate. Each set of the first dielectric patterns includes at least two first striped dielectric patterns, and each of the first striped dielectric patterns covers one of the first electrodes correspondingly. The edges of the top of each first striped dielectric pattern are raised in a peak shape. A phosphor layer is formed between the first striped dielectric patterns of each set of the first dielectric patterns. A second substrate is formed. The first and second substrates are bound; meanwhile, a discharge gas is injected into the discharge space.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: July 10, 2012
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Yu-Heng Hsieh, Chu-Chi Ting, Shinn-Haw Huang, Chang-Jung Yang, Chia-Hua Ai
  • Patent number: 8217575
    Abstract: A plasma display panel (PDP) including: first and second opposing substrates; a discharge layer disposed between the substrates, having discharge cells; address electrodes disposed on the first substrate, extending in a first direction, across the discharge cells; and display electrodes disposed on the second substrate, extending across the discharge cells in a second direction. The discharge layer includes: a discharge enhancement layer disposed on the first substrate, having first spaces; and a barrier rib layer disposed on the discharge enhancement layer, having second spaces that are connected to the first spaces, so as to form the discharge cells. The discharge enhancement layer further includes a perimeter member disposed in a dummy area provided at the edges of an effective area of the PDP.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: July 10, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Soon-Dong Jeong, Jae-Huy Park, Kyoung-Sik Jeon, Sun-Sik Kong, Bon-Joo Koo, Jung-Min Kim, Young-Soo Seo, Hyoung-Bin Park, Yu-Il Jang, Sung-Mun Ryu, Chong-In Chung, Sang-Hyuck Ahn, Jung-Sup Kwak
  • Patent number: 8207672
    Abstract: A technique for achieving both discharge voltage reduction and discharge stabilization in a PDP and the like is provided. This PDP manufacturing method includes, for a structure of a front plate structure (11) to be exposed to a discharge space (30) to be filled with a discharge gas, a step of forming a first layer (4) having an effect of discharge protective layer on a dielectric layer (3), a step of forming a second layer (5) for protecting the first layer on the first layer, and a step of forming a third layer (6) of a powder for discharge stabilization to be exposed to the discharge space (30), the steps being performed in vacuum manufacturing process. And, the structure is made such that a surface of the first layer is exposed to the discharge space (30) by a step of removing the second layer by an aging discharge in the discharge space (30).
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: June 26, 2012
    Assignee: Hitachi, Ltd
    Inventors: Keiichi Betsui, Shinya Fukuta, Tadayoshi Kosaka, Minoru Hasegawa, Hajime Inoue, Yoshiho Seo, Tomonari Misawa
  • Patent number: 8198810
    Abstract: A method of manufacturing an electromagnetic wave shield for a plasma display panel having a first panel having an image-displaying surface, the method including coating the image-displaying surface of the first panel with a coating solution to form a hydrophobic layer; applying a conductive ink to the hydrophobic layer utilizing an ink-jet applicator to form a pattern of the conductive ink; and heating the conductive ink and the hydrophobic layer to form a conductive mesh pattern on the hydrophobic layer.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: June 12, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jaeseok Lim, Sangyoung Jin, Minhyung Kim, Heeyoul Yoon, Ria Ju, Younghak Pyo, Seunghyuck Paek, Sangchul Seo
  • Patent number: 8198813
    Abstract: A plasma display panel including a front panel including a front glass substrate, a display electrode formed on the substrate, a dielectric layer formed to cover the display electrode, and a protective layer formed on the dielectric layer; and a rear panel facing the front panel so that discharge space is formed and including an address electrode formed in a direction intersecting the display electrode, and a barrier rib for partitioning the discharge space. The protective layer includes a base film on the dielectric layer and aggregated particles of a plurality of aggregated metal-oxide crystal particles attached to the base film so that they are distributed over an entire surface. The aggregated particles are attached so that the number of aggregated particles per 10000 ?m2 is not less than 45 and not more than 350.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: June 12, 2012
    Assignee: Panasonic Corporation
    Inventors: Yoshinao Ooe, Shinichiro Ishino, Yuichiro Miyamae, Koyo Sakamoto, Shinya Nakashima, Ryoichi Inoue, Kaname Mizokami
  • Patent number: 8193708
    Abstract: A plasma display device includes a chassis base supporting a plasma display panel. A printed circuit board having a plurality of scan integrated circuits is mounted on the chassis base. Lines of a first flexible printed circuit and of a second flexible printed circuit connect the scan electrodes to the scan integrated circuits. The lines of each of the first and second flexible printed circuits include a first outer line and a second outer line at respective sides of each of the first and second flexible printed circuits, at least one inner line between the first outer line and the second outer line, and at least one dummy line at an outer side of the first outer line. The second outer line of the first flexible printed circuit is connected to the dummy line of the second flexible printed circuit.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: June 5, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jae-Young Yeo
  • Patent number: 8193707
    Abstract: The black bus electrode of plasma display panel is formed from a conductive composition comprising a conductive powder, glass powder, organic binder, organic solvent, and black pigment, wherein the conductive powder is platinum particle or gold particle.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: June 5, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hasashi Matsuno, Michael F. Barker
  • Patent number: 8193706
    Abstract: A plasma display device and a multi plasma display device are disclosed. The plasma display device includes a front substrate, a rear substrate opposite the front substrate, an electrode between the front substrate and the rear substrate, a seal layer between the front substrate and the rear substrate, a driving board positioned in the rear of the rear substrate, and a flexible circuit board electrically connecting the driving board to the electrode. The flexible circuit board is electrically connected to a side surface of the electrode.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: June 5, 2012
    Assignee: LG Electronics Inc.
    Inventor: Hyunkuk Kim
  • Patent number: 8188661
    Abstract: A plasma display panel (PDP), which is capable of performing a display with a high brightness and having a low power consumption, includes a front panel having display electrodes formed, a dielectric layer covering the display electrodes, and a protective layer formed on the dielectric layer. Further, the PDP includes rear panel having address electrodes formed along a direction intersecting the display electrodes, and barrier ribs. The front and rear panels form, therebetween, a discharge space portioned by the barrier ribs and filled with discharge gas. A protective layer is formed of a metal oxide of MgO and CaO, such that an X-ray diffraction analysis on a surface of the protective layer indicates that the metal oxide has a peak between a diffraction angle where a peak of MgO occurs and a diffraction angle where a peak of CaO occurs along an identical orientation of the MgO peak.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: May 29, 2012
    Assignee: Panasonic Corporation
    Inventors: Jun Hashimoto, Masashi Gotou, Yasuyuki Noguchi
  • Patent number: 8183776
    Abstract: A plasma display panel is provided. The plasma display panel includes a front substrate, a rear substrate positioned opposite the front substrate, a barrier rib positioned between the front substrate and the rear substrate, and a seal layer positioned between the front substrate and the rear substrate. The seal layer includes a bead. An angle between the front substrate and the rear substrate in a disposition area of the seal layer ranges from 0.2° to 1.0°.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: May 22, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jaeyoung Oh, Woogon Jeon, Heerak Kim, Daeil Han
  • Patent number: 8183778
    Abstract: The present invention provides a phosphor with high luminance and color purity. The phosphor of the present invention is represented by the general formula: aYO3/2·(3?a)CeO3/2·bAlO3/2·cGaO3/2, where 2.80?a?2.99, 1.00?b?5.00, 0?c?4.00, and 4.00?b+c?5.00 are satisfied. In the phosphor, a peak whose peak top is located in the range of diffraction angle 2? of not less than 16.7 degrees but not more than 16.9 degrees is present in an X-ray diffraction pattern obtained by measurement on the phosphor using an X-ray with a wavelength of 0.774 ?.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: May 22, 2012
    Assignee: Panasonic Corporation
    Inventors: Kojiro Okuyama, Yayoi Okui, Seigo Shiraishi
  • Patent number: 8183777
    Abstract: A high definition plasma display panel which can display a video of a higher brightness and yet can be driven at a low power consumption is realized. To this end, a plasma display panel includes front panel including display electrode formed on glass substrate, dielectric layer 8 covering display electrode, and protective layer formed on dielectric layer; and a rear panel opposing to front panel to form a discharge space filled with discharge gas, and including an address electrode formed along a direction intersecting with display electrode, and a barrier rib partitioning the discharge space. Protective layer is formed of a metal oxide made of magnesium oxide and calcium oxide and contains silicon. In an X-ray diffraction analysis on a surface of protective layer, a diffraction angle where a peak of the metal oxide occurs exists between a diffraction angle where a peak of the magnesium oxide occurs and a diffraction angle where a peak of the calcium oxide occurs.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: May 22, 2012
    Assignee: Panasonic Corporation
    Inventors: Jun Hashimoto, Masashi Gotou
  • Patent number: 8179044
    Abstract: A plasma display device with lowered discharge voltage by mixing activated carbon with phosphor layers and/or barrier ribs to produce carbon dioxide. The plasma display device includes a first substrate and a second substrate spaced from the first substrate, wherein the first substrate and the second substrate are sealed together. A plurality of barrier ribs are on the first substrate for defining a plurality of discharge cells between the first substrate and the second substrate. A phosphor layer is in the plurality of discharge cells, and a gas mixture including carbon dioxide is between the first and second substrates, wherein at least one of the phosphor layer or the plurality of barrier ribs includes an activated carbon.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: May 15, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Younggil Yoo, Kyeongwoon Chung
  • Patent number: 8174192
    Abstract: A plasma display panel includes a front panel having a front substrate having a plurality of arrays of display electrodes each including a scanning electrode and a sustain electrode opposed to each other with a discharge gap being defined therebetween and a rear panel having a rear substrate opposed to a front substrate and having partition walls for partitioning a discharge space between the rear panel and the front panel, data electrodes formed between partition walls in such a fashion that the data electrodes intersect with the display electrodes, and phosphor layers formed between partition walls, wherein the rear panel forms partition walls so as to divide the discharge space in a plurality of regions along a direction parallel to the data electrodes, and blue phosphor layers are formed on boundary parts of the plural regions.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: May 8, 2012
    Assignee: Panasonic Corporation
    Inventors: Kentaro Ueda, Nobutaka Hokazono, Masanori Suzuki, Toshifumi Nagino, Ryuichi Murai
  • Patent number: 8169143
    Abstract: A plasma display panel (200) of the present invention includes a first panel (1) and a second panel (8). A discharge space (14) is formed between the first panel (1) and the second panel (8). In the plasma display panel (200), an electron emitting material (20) is disposed to face the discharge space (14). The electron emitting material (20) contains Sn, an alkali metal, O (oxygen), and at least one element selected from the group consisting of Ca, Sr, and Ba.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: May 1, 2012
    Assignee: Panasonic Corporation
    Inventors: Yayoi Okui, Osamu Inoue, Kojiro Okuyama, Seigo Shiraishi
  • Patent number: 8169144
    Abstract: A plasma display panel is disclosed. The plasma display panel includes a front substrate, a rear substrate opposite the front substrate, a barrier rib that is positioned between the front substrate and the rear substrate to provide a discharge cell, a seal layer that attaches the front substrate to the rear substrate, and an exhaust hole that is formed on the rear substrate in a portion between the barrier rib and the seal layer. The exhaust hole is positioned in a portion overlapping an active area along a shorter side or a longer side of the rear substrate.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: May 1, 2012
    Assignee: LG Electronics Inc.
    Inventors: Younjin Kim, Jonghwa Baek, Hungun Park, Jain Goo, Wontae Kim, Sangyong Lee
  • Patent number: 8164262
    Abstract: A plasma display panel including: a front panel including a glass front substrate, a display electrode formed on the substrate, a dielectric layer formed so as to cover the display electrode, and a protective layer formed on the dielectric layer; and a rear panel disposed facing the front panel so that a discharge space is formed, the rear panel including an address electrode formed in a direction intersecting the display electrode, a plurality of longitudinal barrier ribs arranged in parallel to the address electrode and a plurality of lateral barrier ribs combined with the longitudinal barrier ribs to form mesh-shaped barrier ribs. The protective layer is formed by forming a base film on the dielectric layer and attaching a plurality of aggregated particles obtained by aggregating a plurality of crystal particles made of metal oxide to the base film so as to be discretely distributed over a surface of the base film.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: April 24, 2012
    Assignee: Panasonic Corporation
    Inventors: Akira Shiokawa, Kaname Mizokami, Shinichiro Ishino, Koyo Sakamoto, Hiroyuki Kado, Yoshinao Ooe, Hideji Kawarazaki, Kazuo Uetani
  • Patent number: 8154203
    Abstract: A plasma display member does not cause an erroneous discharge in a display region end portion and includes: a substrate (1); a substantially stripe-shaped address electrode (2) arranged on the substrate (1); a dielectric layer (3) covering the address electrode (2) and a grid-shaped partition arranged on the dielectric layer (3) and having main walls (4) substantially parallel to the address electrode (2) and auxiliary walls (5) intersecting the main partitions (4). The auxiliary wall (5) intersecting the main wall (4) located at the outermost position among the main walls (4) located at non-display regions (7) at the right and left of a display region (6) has a bottom width identical to the bottom width (L1) of the main wall (4) located at the outermost position among the main walls (4) located at the non-display regions (7) at the right and left of the display region (6) which is multiplied by 0.3 to 1.0.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: April 10, 2012
    Assignee: Panasonic Corporation
    Inventors: Minori Kamada, Kenichi Kawabe
  • Patent number: 8154864
    Abstract: The present invention is a robust LED display module for use in an electronic sign which display module includes a metallic housing, a heat conductive interface panel, an LED circuit board and LEDs, and a metallic mask arranged in intimate contact and association therewith, and which components operate synergistically in concert with each other in order to evenly distribute, reduce and dissipate heat along, about and within the structure of the present invention. Display uniformity is provided by the use of major metallic structures in order to prevent warpage and to protect the geometric integrity of the LED display module.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: April 10, 2012
    Assignee: Daktronics, Inc.
    Inventors: Nathan L. Nearman, Shannon Lee Mutschelknaus, Matthew R. Mueller, Douglas P. Tvedt, Kent S. Miller, Mark D. Dennis, John L. Hage, Ryan J. Nielsen
  • Patent number: 8148899
    Abstract: A plasma display of this invention includes a front panel, and this front panel includes a substrate, a plurality of display electrode pairs formed in stripes on the substrate, a dielectric layer formed to cover the display electrode pair and the substrate, a dielectric-protective layer formed to cover the dielectric layer, and fine particles containing a crystal of a metal oxide, the fine particles being dispersed on a surface of the dielectric-protective layer. The display electrode pair is provided with a strip-shaped scanning electrode and a strip-shaped sustaining electrode each having a laminate structure of a transparent electrode and a bus electrode. In the surface of the dielectric-protective layer, a first region corresponding to a region facing the bus electrode of the scanning electrode is smaller than a second region corresponding to a region except the first region, with regard to a cover rate of the surface covered with the fine particles.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: April 3, 2012
    Assignee: Panasonic Corporation
    Inventors: Satoshi Maeshima, Michiru Kuromiya, Seiji Nishitani, Masashi Morita
  • Publication number: 20120068597
    Abstract: A plasma display panel has a front plate and a rear plate disposed so as to face the front plate. The front plate includes display electrodes, a dielectric layer formed to coat the display electrodes, and a protective layer formed to coat the dielectric layer. The protective layer includes a base layer formed on the dielectric layer, and a plurality of particles dispersed in the base layer. The base layer has nanocrystalline particles made of magnesium oxide and having an average particle diameter in the range of at least 10 nm to at most 100 nm. The particles are aggregated particles in which a plurality of metal oxide crystal particles are aggregated. The aggregated particles have an average particle diameter at least twice to at most four times as large as a film thickness of the base layer.
    Type: Application
    Filed: March 7, 2011
    Publication date: March 22, 2012
    Inventors: Yoshinao Ooe, Koyo Sakamoto, Sadahiro Goto, Yoshiyuki Hisatomi, Kengo Kigami, Kaname Mizokami, Takeshi Kokura
  • Publication number: 20120068598
    Abstract: A plasma display panel is provided with a front plate, and a rear plate disposed so as to face the front plate. The front plate has a display electrode, a dielectric layer to cover the display electrode, and a protective layer to cover the dielectric layer. The protective layer includes a base layer formed on the dielectric layer, and a plurality of aggregated particles dispersed on an entire surface of the base layer. Each of the aggregated particle includes a plurality of crystal particles made of metallic oxide and aggregating to one another. The base film contains MgO, Ce and Ge. In the base layer, a concentration of Ce is at least 200 ppm to at most 500 ppm, and a concentration of Ge is at least 100 ppm to at most 5000 ppm.
    Type: Application
    Filed: March 7, 2011
    Publication date: March 22, 2012
    Inventors: Yoshinao Ooe, Koyo Sakamoto, Sadahiro Goto, Yoshiyuki Hisatomi, Kengo Kigami, Kaname Mizokami, Takeshi Kokura
  • Patent number: 8125147
    Abstract: In a plasma display apparatus of the preset invention, a filter including an external light shielding sheet configured to shield externally incident light to the greatest extent possible is disposed at the front, thus effectively implementing a black image and improving the bright and dark room contrast. Furthermore, since the external light shielding sheet and an EMI shielding sheet are formed to be aligned, thereby sustaining the luminance of the screen.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: February 28, 2012
    Assignee: LG Electronics Inc.
    Inventors: Yu Park, Tae Deok Seo, Jun Hwan Ju, Hun Gun Park
  • Patent number: 8125150
    Abstract: A plasma display panel (PDP) including first and second substrates arranged opposite to each other, a plurality of first electrodes between the first and second substrates, a dielectric layer disposed on the first substrate, a plurality of second electrodes disposed in a direction crossing the first electrodes, and red, green, and blue phosphor layers disposed between the first and second substrates, wherein the dielectric layer includes a lead-free glass and at least one of CoO, CuO, MnO2, Cr2O3, or Fe2O3 as a metal oxide additive.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: February 28, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Joung Kweon, Sung-Hune Yoo
  • Patent number: 8120253
    Abstract: A plasma display panel (PDP) with improved address voltage margin and reduced noise brightness such as discharge light or background light during an address discharge. The PDP includes a plurality of barrier ribs between a front substrate and a rear substrate to define a plurality of main discharge spaces and a plurality of auxiliary discharge spaces along a stepped surface of the barrier ribs. The auxiliary discharge spaces provide a shorter discharge path than the main discharge spaces. Address electrodes are provided on the rear substrate for generating address discharges together with the scan electrodes on the front substrate at locations adjacent to the auxiliary discharge spaces. Phosphor layers are respectively formed in the main discharge spaces, and a discharge gas is injected in the main discharge spaces and the auxiliary discharge spaces.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: February 21, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Mun-Ho Nam, Jun-Yong Park
  • Patent number: 8120254
    Abstract: A plasma display panel (PDP) includes a front panel (2) having a front glass substrate (3) on which display electrodes (6) are formed, a dielectric layer (8) covering the display electrodes (6), and a protective layer (9) formed on the dielectric layer (8). The PDP panel also includes a rear panel (10) facing the front panel (2) to form a discharge space therebetween, and including address electrodes formed along a direction intersecting with the display electrodes (6) and barrier ribs partitioning the discharge space. The protective layer (9) includes a primary film (91) made of MgO and formed on the dielectric layer (8), and aggregated particles (92) formed of several crystal particles of MgO aggregated together and at least one type of particles (93) made of non-organic material and different from aggregated particles (92). The particles (92) and (93) are distributed on the primary film (91).
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: February 21, 2012
    Assignee: Panasonic Corporation
    Inventors: Koji Aoto, Keiji Horikawa, Kaname Mizokami
  • Patent number: 8120255
    Abstract: A plasma display panel (PDP) includes a front panel having a front glass substrate, a display electrode formed on the substrate, a dielectric layer formed to cover the display electrode, and a protective layer formed on the dielectric layer. Further, the PDP includes a rear panel facing the front panel so that a discharge space is formed, wherein the rear panel includes an address electrode in a direction intersecting the display electrode, and includes a barrier rib partitioning the discharge space. The PDP also includes a seal material providing a seal between the front panel and the rear panel at outer peripheries thereof. In the protective layer, a base film is formed on the dielectric layer and aggregated particles of metal oxide crystal particles are attached to the base film and distributed over a surface of a region inside the seal material.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: February 21, 2012
    Assignee: Panasonic Corporation
    Inventors: Hideji Kawarazaki, Kaname Mizokami, Shinichiro Ishino, Koyo Sakamoto, Yuichiro Miyamae, Yoshinao Ooe
  • Patent number: 8115388
    Abstract: There is provided a plasma display panel device using phosphors to improve reliability and color reproductivity or color performance. A plasma display panel includes: a discharge gas for generating ultraviolet light as a result of electric discharge, and a phosphor layer containing a phosphor for emitting light as a result of excitation by the ultraviolet light, in which the phosphor contains an Eu activated silicate phosphor added with at least one element selected from Al, Ga, Y and Gd, represented by the following General Formula (1): M13-yM2Si2O8:Euy??(1) wherein M1 is at least one element selected from the group consisting of Ba, Ca, and Sr; M2 is at least one element selected from the group consisting of Mg and Zn; and y satisfies the condition of 0.001?y?0.2.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: February 14, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Hirotaka Sakuma, Hitoshi Oaku, Choichiro Okazaki, Shin Imamura, Masaaki Komatsu
  • Patent number: 8102120
    Abstract: A plasma display panel that includes a first substrate and a second substrate facing each other, a plurality of address electrodes disposed on the first substrate, a plurality of display electrodes disposed on one side of the second substrate facing the first substrate in a direction crossing the address electrodes, and red, green, and blue phosphor layers disposed in a discharge space between the first and second substrates. The green phosphor layer includes a green phosphor and an inorganic pigment absorbing a wavelength of about 580 nm to about 640 nm. The plasma display panel includes a green phosphor layer having a reduced decay time and good color purity characteristics, as well as excellent luminance, discharge, and life-span characteristics.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: January 24, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyeongwoon Chung, Young Kwan Kim, Jung-Woo Moon, Soon-Rewl Lee, Young-Gil Yoo, Minkyu Kim, Jeong-Hyeon Ha, Jeong-Hee Kim
  • Publication number: 20120013248
    Abstract: A PDP has a front plate and a rear plate. The front plate includes a protective layer, and the rear plate includes phosphor layers. The protective layer includes a base layer. Agglomerated particles are dispersed on the base layer. The base layer includes a first metallic oxide and a second metallic oxide. The base layer has a peak through an X-ray diffraction analysis between a first peak of the first metallic oxide and a second peak of the second metallic oxide. The first metallic oxide and the second metallic oxide are two selected from a group consisting of MgO, CaO, SrO, and BaO. The phosphor layers include particles of a platinum group element.
    Type: Application
    Filed: February 24, 2011
    Publication date: January 19, 2012
    Inventors: Kyohei Yoshino, Takuji Tsujita, Takehiro Zukawa, Keiji Horikawa
  • Patent number: 8093814
    Abstract: An electrode-forming composition and a plasma display panel manufactured using the electrode-forming composition are provided.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: January 10, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chul-Hong Kim, Hyun-Mi Jeong