And Additional Layer On Member Patents (Class 313/587)
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Publication number: 20040189199Abstract: A front glass substrate is opposite a back substrate with a discharge space in between. On the rear-facing face of the front glass substrate are provided a plurality of row electrode pairs each extending in the row direction and regularly arranged in the column direction to individually form display lines; and a plurality of column electrodes each extending in a direction at right angles to the row electrode pairs and separated from the row electrode pair by a first dielectric layer. A partition wall partitions the discharge space into discharge cells each opposite the opposed transparent electrodes of the row electrode pair. In the plasma display panel structured in this manner, the back substrate is constituted of a metal plate having the surface covered with an insulation layer.Type: ApplicationFiled: April 8, 2004Publication date: September 30, 2004Applicant: Pioneer CorporationInventors: Toshihiro Komaki, Naruhiko Atsughi, Satoshi Jinno, Takahiro Togashi, Masaki Yoshinari, Kazuya Akiyama
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Publication number: 20040189203Abstract: A plurality of row electrode pairs and a dielectric layer are formed on a front glass substrate. A plurality of column electrodes forming discharge cells at the intersections with the row electrode pairs in a discharge space is formed on one of a back glass substrate and the front glass substrate. Each of the discharge cells is defined and separated from another discharge cell adjacent thereto in the column direction by a transverse wall of the partition wall provided between the front glass substrate and the back glass substrate. A black- or dark-colored light absorption layer facing the front glass substrate is formed in each non-light emission area including the transverse walls in the discharge space.Type: ApplicationFiled: September 30, 2003Publication date: September 30, 2004Applicant: Pioneer Corporation and Pioneer Display Products CorporationInventors: Taro Naoi, Hirofumi Higashi, Shingo Ogane, Hiroaki Watanabe
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Publication number: 20040183441Abstract: Disclosed is a plasma display panel including a first substrate and a second substrate provided with a predetermined gap therebetween, and disposed substantially parallel to each other; a plurality of address electrodes formed on the first substrate; a first dielectric layer formed on a front surface of the first substrate, covering the address electrodes; a plurality of barrier ribs mounted on the first dielectric layer with a predetermined height to provide a discharge space; a phosphor layer formed within the discharge space; a plurality of discharge sustain electrodes provided on a front surface of the second substrate facing the first substrate, and disposed generally perpendicular to the address electrodes; a second dielectric layer formed on the front surface of the second substrate, covering the discharge sustain electrodes; and a passivation layer coated on the second dielectric layer, comprising MgO and dopant elements Si and Fe.Type: ApplicationFiled: March 2, 2004Publication date: September 23, 2004Inventors: Ki-Dong Kim, Eun-Gi Heo, Young-Cheul Kang
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Patent number: 6794819Abstract: An electrode structure with white balance adjustment for plasma display panel is described. The electrode structure has a comb electrode, a first transparent electrode and a second transparent electrode. The first transparent electrode and the second transparent electrode are separated from the comb electrode, respectively. Changing the profile of the first transparent electrode and the second transparent electrode increases the flexibility of the transparent electrodes. Further, the width of the first electrodes responsive to the luminous regions is adjusted to control the luminance through the first transparent electrode so that white balance of the plasma display panel is precisely corrected.Type: GrantFiled: December 10, 2002Date of Patent: September 21, 2004Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Hsu-Pin Kao, Yen-Ting Shen, Yi-Sheng Yu, Ching-Hui Lin, Kuang-Lang Chen
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Patent number: 6794821Abstract: The invention relates to a plasma picture screen provided with a phosphor layer (9) which comprises a mixed particle mixture of a standard phosphor and a further phosphor which emits the same color. The use of two phosphors in one phosphor layer (9) renders it possible for undesirable properties of the phosphors to cancel each other out.Type: GrantFiled: December 6, 2001Date of Patent: September 21, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Thomas Juestel, Hans-Helmut Bechtel
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Patent number: 6794820Abstract: A radio frequency plasma display panel that is capable of reducing a discharge voltage. In the plasma display panel, a dielectric material is entirely coated on a substrate and is patterned to have a convex surface. A first electrode crossing the dielectric pattern is formed on the substrate, and a dielectric layer is entirely coated on the substrate provided with the dielectric pattern and the first electrode. A second electrode crossing the first electrode is formed on a concave groove area in the dielectric layer having a wave shape with lands and grooves.Type: GrantFiled: June 2, 2000Date of Patent: September 21, 2004Assignee: LG Electronics Inc.Inventors: Jung Won Kang, Oe Dong Kim
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Publication number: 20040178730Abstract: A full color three electrode surface discharge type plasma display device that has fine image elements and is large and has a bright display. The three primary color luminescent areas are arranged in the extending direction of the display electrode pairs in a successive manner and an image element is composed by the three unit luminescent areas defined by these three luminescent areas and address electrodes intersecting these three luminescent areas. Further, phosphors are coated not only on a substrate but also on the side walls of the barriers and on address electrodes. The manufacturing processes and operation methods of the above constructions are also disclosed.Type: ApplicationFiled: March 29, 2004Publication date: September 16, 2004Applicant: FUJITSU LIMITEDInventors: Tsutae Shinoda, Noriyuki Awaji, Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto, Mamaru Miyahara
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Publication number: 20040178729Abstract: The present invention relates to a front filter having a touch screen, and a plasma display apparatus having the same. The front filter installed on a front surface of a panel of a plasma display apparatus, the front filter including: a touch screen for generating a coordinate signal with respect to a touch point.Type: ApplicationFiled: March 10, 2004Publication date: September 16, 2004Applicant: LG Electronics inc.Inventors: Young Sung Kim, Kyung Ku Kim, Hong Rae Cha, Myeong Soo Chang, Byung Gil Ryu, Eun Ho Yoo
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Patent number: 6787995Abstract: A full color three electrode surface discharge type plasma display device that has fine image elements and is large and has a bright display. The three primary color luminescent areas are arranged in the extending direction of the display electrode pairs in a successive manner and an image element is composed by the three unit luminescent areas defined by these three luminescent areas and address electrodes intersecting these three luminescent areas. Further, phosphors are coated not only on a substrate but also on the side walls of the barriers and on address electrodes. The manufacturing processes and operation methods of the above constructions are also disclosed.Type: GrantFiled: September 5, 2000Date of Patent: September 7, 2004Assignee: Fujitsu LimitedInventors: Tsutae Shinoda, Noriyuki Awaji, Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto, Mamaru Miyahara
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Patent number: 6787992Abstract: A display device has an emitting region constituted by a plurality of first electrodes provided on a substrate and extending in parallel, a plurality of second electrodes provided on the first electrodes and extending substantially perpendicularly to the first electrodes, and a plurality of emission sites for emitting electrons or light respectively connected to a plurality of intersections between the first and second electrodes and arranged on the substrate and has a peripheral region surrounding the emitting region on the substrate. In this display device, first and second groups of external repeating terminals for the first and second electrodes are collectively provided side by side in a part of the peripheral region.Type: GrantFiled: December 28, 2001Date of Patent: September 7, 2004Assignee: Pioneer CorporationInventors: Takashi Chuman, Takamasa Yoshikawa, Takuya Hata, Kazuto Sakemura, Takashi Yamada, Nobuyasu Negishi, Shingo Iwasaki, Hideo Satoh, Atsushi Yoshizawa, Kiyohide Ogasawara
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Publication number: 20040169471Abstract: Tile comprising a substrate 10 coated with at least one array of electrodes 11 which is itself coated with an array of barrier ribs 17 made of a mineral material, the porosity of which is greater than 25%, comprising a porous base underlayer 18 which is inserted between the array of electrodes 11 and the array of barrier ribs 17 and which is made of a mineral material, the porosity of which is greater than 25%.Type: ApplicationFiled: December 18, 2003Publication date: September 2, 2004Inventors: Armand Bettinelli, Jean-Claude Martinez
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Patent number: 6784614Abstract: An electrode plate, a method of manufacturing the same, a gas discharge panel using an electrode plate, and a method of manufacturing the same are provided by incorporating a relatively simple structure, which can keep electrodes formed on a plate from peeling or becoming misaligned. In the electrode plate, at least one electrode is formed and adhered to a main surface of a plate by a thick film or thin film formation method, wherein of all ends of the electrode, at least an end opposite to an end at a power supply point is adhered to the main surface of the plate with stronger adhesion than the other parts of the electrode.Type: GrantFiled: June 30, 2003Date of Patent: August 31, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideaki Yasui, Kazuhiko Sugimoto, Keisuke Sumida, Hiroyoshi Tanaka, Shinya Fujiwara, Hideki Marunaka, Kazunori Hirao
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Patent number: 6781310Abstract: In a plasma display panel which is capable of improving colorimetric purity without lowering light efficiency by selectively filtering only visible light of request color, a plasma display panel includes a filter including a grating layer having plural gratings for diffracting lights generated in a plasma display panel at a certain angle and a black matrix layer for transmitting or cutting off the lights diffracted by the grating layer.Type: GrantFiled: August 23, 2002Date of Patent: August 24, 2004Assignee: LG Electronics Inc.Inventor: Tae In Kwon
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Patent number: 6781308Abstract: A phosphor (fluorescent material) making up of a fluorescent layer of a plasma display panel is made of mono-crystal particles, which each have a particle diameter of 10-200 nm.Type: GrantFiled: January 10, 2002Date of Patent: August 24, 2004Assignee: NEC CorporationInventor: Masato Hayashi
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Publication number: 20040160185Abstract: A plasma display panel (PDP) comprising an ultraviolet-to-visible rays converter is provided. The plasma display panel includes a front panel, a rear panel, a filter set, and an optical converter. The filter set is installed in front of the front panel. The optical converter is installed between the front panel and the filter set and converts ultraviolet rays emitted from the front panel into visible rays. Accordingly, the ultraviolet rays emitted from a plasma forming area in a discharge cell are mostly converted into visible rays. Therefore, the efficiency of the PDP is naturally improved.Type: ApplicationFiled: February 3, 2004Publication date: August 19, 2004Applicant: Samsung SDI Co., Ltd.Inventors: Hidekazu Hatanaka, Gi-young Kim, Seung-hyun Son, Kyung-jun Hong
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Patent number: 6774562Abstract: The invention refers to an enamel composition for producing reflecting dielectric layers in plasma display panels, comprising as layer forming constituents 70 to 97% by wt. of a glass frit composition and 3 to 30% by wt. of a particulate whitening material. The whitening material comprises one or more thermally deactivated white pigments, which have been made by a process comprising heating of at least one white pigment in the absence or presence of a glass frit having a softening temperature of less than 600° C. at a temperature of 600 to 1000° C. for 0,1 to 10 hours. The invention further refers to a method for improving the wettability of white pigments by the above said thermal treatment. The enamel is used for producing a reflecting white dielectric layer in plasma display panels.Type: GrantFiled: December 15, 2000Date of Patent: August 10, 2004Assignee: dmcInventors: Guy Roche, Annette Gorse
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Patent number: 6774558Abstract: A glass substrate containing Na or K and being fabricated by a floating method has a surface coated with a metal oxide layer having a thermal expansion coefficient close to that of the glass substrate. Ag electrodes are provided on the metal oxide layer. This provides a plasma display panel with high image quality since the panel is prevented from migration of Ag between electrodes, thus having the glass substrate prevented from being tinted yellow. As a result, the plasma display panel at high quality can be implemented using the glass substrate.Type: GrantFiled: April 26, 2002Date of Patent: August 10, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Mitsuhiro Otani, Masaki Aoki, Taku Watanabe
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Patent number: 6769946Abstract: A manufacturing method for a gas discharge panel according to the invention can reduce the amount of water and gaseous molecules, which are absorbed into the first and the second substrates, to a minimum by keeping the both substrates under a reduced pressure, and therefore can prevent a degradation of a discharge gas filling the finished panel. As a result, problems in the finished panel such as increase in a discharge starting voltage and generation of an abnormal discharge can be suppressed.Type: GrantFiled: July 5, 2001Date of Patent: August 3, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshiki Sasaki, Junichi Hibino
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Patent number: 6771234Abstract: The disclosure teaches using at least two orthogonal arrays of complicated shaped glass rods or very large fibers-like structures (from here in referred to as fibers) with wire electrodes to fabricate plasma displays with plasma cells larger than 0.05 mm3 in volume. (The volume of a plasma cell is defined by the width of the plasma channel times the height of the plasma channel times the pitch of the pair of sustain electrodes.) To increase the size of the bottom fiber and keep the addressing voltage constant or to reduce the addressing voltage, the address electrode is moved from the bottom of the channel up into the barrier rib. Moving the address electrode up into the barrier rib will reduce the distance, d, between the address electrode and the sustain electrodes, thus increasing the electric field of the addressing pulse.Type: GrantFiled: March 1, 2001Date of Patent: August 3, 2004Inventor: Chad Byron Moore
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Patent number: 6771022Abstract: The present invention relates to a backplate for a PDP and a fabrication method of the same capable of uniformly coating the phosphor material in the inner portion of the discharge cell of the PDP based on the height of the barrier rib(the backplate and the space surrounded by the barrier ribs). In one embodiment of the present invention, the lubricant material may be coated on the substrate having the barrier ribs, and then the lubricant thin film is formed, and then the phosphor material is coated on the lubricant thin film. In another embodiment of the present invention, the phosphor material is coated on the substrate having the barrier ribs, and then a certain compression gas is sprayed so that the phosphor material is uniformly coated on the barrier ribs and on the bottom portion of the backplate in which the barrier ribs are installed, whereby it is possible to uniformly coat the phosphor material at a certain thickness irrespective of the height of the barrier ribs.Type: GrantFiled: March 20, 2000Date of Patent: August 3, 2004Assignee: LG Electronics Inc.Inventor: Yoon Kwan Lee
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Publication number: 20040145316Abstract: A plasma display panel is composed of a first substrate and a second substrate facing each other via a discharge space and sealed together. A protective layer on the first substrate is composed principally of magnesium oxide, includes a substance or structure that creates a first energy level in an area of a forbidden band, the area being in a vicinity of a conduction band, and includes a substance or structure that creates a second energy level in another area in the forbidden band, the other area being in a vicinity of a valence band. During driving the second energy level is occupied by electrons, and few electrons exist in the first energy level, or electrons can easily occupy the first energy level due to a minus charge state, and MgO insultaive resistance is not lowered. This maintains wall charge retention and reduces discharge irregularities and firing voltage Vf.Type: ApplicationFiled: November 6, 2003Publication date: July 29, 2004Inventors: Mikihiko Nishitani, Yukihiro Morita, Masatoshi Kitagawa, Masaharu Terauchi
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Publication number: 20040145317Abstract: A method for manufacturing a display panel, in which a protective layer (MgO layer) for a dielectric layer covering row electrode pairs is formed on a first substrate, then the first substrate is placed opposite a second substrate, having required structures formed thereon, to define a discharge space between them, then the discharge space is sealed, and then the discharge space is filled with a discharge gas, has the steps of; placing the first substrate with the protective layer (MgO layer) in a reducing gas atmosphere; and producing a discharge in the reducing gas atmosphere for dry-etching a surface of the protective layer (MgO layer).Type: ApplicationFiled: January 14, 2004Publication date: July 29, 2004Applicant: Pioneer CorporationInventors: Taro Naoi, Tomoyuki Nakatani
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Patent number: 6768262Abstract: The present invention relates to a plasma display panel for maintaining the light emission and enhancing the contrast. The plasma display panel of the present invention includes the first electrodes for receiving scan pulses, the second electrodes for receiving first sustain pulses and the third electrodes for receiving second sustain pulses. The black matrices are formed to cover the first electrodes. Thus, the first electrodes are used during resetting or addressing and the second electrodes and the third electrodes are use during sustaining so as to maintain the light emission and enhance the contrast greatly.Type: GrantFiled: September 30, 2002Date of Patent: July 27, 2004Assignee: LG Electronics Inc.Inventors: Young Joon Ahn, Seong Ho Kang
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Patent number: 6768261Abstract: A color plasma display panel which includes front and back substrates bonded together to form an integrated body and separated from each other at a predetermined distance, the front substrate being an image displaying surface, the back substrate including a plurality of sustain discharge electrodes forming a pair of plural electrodes in a cell, a dielectric layer for insulating the sustain discharge electrodes, and a protective layer; and the front substrate including a plurality of address electrodes arranged in crossing with the sustain discharge electrodes, and a fluorescent layer for generating visible rays.Type: GrantFiled: June 26, 2001Date of Patent: July 27, 2004Assignee: LG Electronics Inc.Inventors: Hong-Ju Ha, Hun-Gun Park
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Publication number: 20040130267Abstract: In a plasma display panel of AC type, consisting of a front panel 9 provided with display electrodes 7 and a rear panel 4 provided with address electrodes 3, that displays an image by causing discharge in the discharge gas space formed between the front panel 9 and rear panel 4, a protective film 5 made of metallic oxide covering a dielectric layer 6 placed on the front panel 9 is formed as follows. The protective film 5 is formed into a structure where columnar structures are densely packed, closely with each other, extending perpendicularly to the interface between the dielectric layer 6 and the protective film 5, and more than 400 columnar structures are formed per the substrate area of 1 &mgr;m2.Type: ApplicationFiled: December 8, 2003Publication date: July 8, 2004Inventors: Hiroshi Kajiyama, Akira Katou, Ken-Ichi Onisawa, Tetsuro Minemura, Kazuo Uetani, Yasushi Ihara, Shiro Takigawa, Kouichi Nose, Isao Tokomoto, Yasuhiro Koizumi
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Publication number: 20040124775Abstract: Discharge-gas-filled discharge cells C each having a phosphor layer 7 formed therein are formed between a front substrate 1 and a back substrate 4. A display discharge is produced between paired display electrodes X and Y and an addressing discharge is produced between the display electrode Y and an addressing electrode D in each discharge cell C. In such a plasma display panel, a diamond-containing layer 17A made of a diamond-containing insulation material is formed in a position where the addressing discharge between the display electrode Y and the addressing electrode D in each discharge cell C is produced.Type: ApplicationFiled: December 17, 2003Publication date: July 1, 2004Applicant: Pioneer CorporationInventors: Takeru Okada, Hikaru Takahashi
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Publication number: 20040124774Abstract: A plasma display device having improved efficiency and increased image quality. This device includes a pair of front and back substrates opposed to each other to form between the substrates a discharge space partitioned by barrier ribs, a plurality of display electrodes each disposed on the front substrate to form a discharge cell between the barrier ribs, a dielectric layer formed above the front substrate to cover the display electrodes, and a phosphor layer which emits light by discharge between the display electrodes. The dielectric layer is constructed of at least two layers of different dielectric constants and is formed with, at its surface closer to the discharge space, a recessed part in each discharge cell. This limits a discharge region, thus realizing highly efficient discharge. The structure having the two layers of different dielectric constants can suppress crosstalk even if this structure has reduced thickness.Type: ApplicationFiled: October 14, 2003Publication date: July 1, 2004Inventors: Morio Fujitani, Hiroyuki Yonehara, Junichi Hibino
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Patent number: 6756733Abstract: In a plasma display panel, front and rear substrates are arranged separated a predetermined distance from each other and to face each other, forming a discharge space. A plurality of first electrodes are formed on an inner surface of the rear substrate. A first dielectric layer is formed on the inner surface of the rear substrate to cover the first electrodes. A plurality of barrier ribs are formed between the first electrodes on the inner surface of the rear substrate, sectioning the discharge space. A fluorescent substance layer is formed on a surface of the first dielectric layer and side surfaces of the barrier ribs. A first protective film formed on the surface of the first fluorescent layer. A plurality of second electrodes are formed corresponding to the first electrodes on an inner surface of the front substrate. A second dielectric layer formed on the inner surface of the front substrate to cover the second electrodes. A second fluorescent layer formed on the surface of the second dielectric layer.Type: GrantFiled: March 28, 2002Date of Patent: June 29, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Young-mo Kim, Hidekazu Hatanaka, Won-tae Lee, Yoon-jeong Lee
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Patent number: 6753649Abstract: A plasma picture screen is disclosed. In one embodiment, an AC plasma picture screen with a coplanar arrangement which has an enhanced luminance is provided. A layer, which has a high reflection in the wavelength range of the plasma emission (145 to 200 nm) and a high transmission in the visible wavelength range, is provided on the front plate. The front plate includes a glass plate on which a dielectric layer, a protective layer, a reflective layer are provided. The reflective layer reflects UV light emitted in the direction of the front plate back towards phosphors. The optical properties of the UV light reflecting layer are realized with inorganic particles with a particle diameter of between 200 nm and 500 nm and a layer thickness from 0.5 &mgr;m to 5 &mgr;m, or with agglomerates of inorganic particles with a particle diameter of between 10 nm and 200 nm and a layer thickness of 0.2 &mgr;m to 10 &mgr;m.Type: GrantFiled: September 15, 2000Date of Patent: June 22, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Helmut Bechtel, Wolfgang Busselt, Harald Gläser, Claus Feldmann, Joachim Opitz, Detlef Uwe Wiechert
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Publication number: 20040113554Abstract: A plasma display panel having higher light-emitting luminance and efficiency of a discharge cell includes: a plurality of first barriers successively formed on a substrate at predetermined intervals; a plurality of first sustain electrodes formed at a width more than 40% of a pixel pitch, which is an overall distance of four of the barriers, to be orthogonal to the first barriers; a plurality of second sustain electrodes spaced apart from the first sustain electrodes at a distance less than 20% of the pixel pitch and mated with the first sustain electrodes one by one; a dielectric layer formed at a thickness of 25 &mgr;m or more to cover the first and second sustain electrodes; and a plurality of pads formed on some of the dielectric layer corresponding to the first sustain electrodes and the second sustain electrodes in each discharge cell.Type: ApplicationFiled: November 25, 2003Publication date: June 17, 2004Inventors: Jae Sung Kim, Chung Huan Jeon, Eun Cheol Lee, Young Joon Ahn, Seok Dong Kang, Sung Yong Ahn
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Patent number: 6750610Abstract: A plasma display panel having a structured black matrix (8) which is coated with a reflecting layer (9) on the side turned away from the viewer. Visible light incident from outside is absorbed by the black matrix (8) and light incident from inside is reflected by the reflecting layer (9). This enhances the LCP value of the whole plasma screen. A protective layer (5) such as MgO is deposited on the black matrix and reflecting layer and so formed over the black matrix and said reflecting layer so as to reduce undesired reactions of the black matrix and the reflecting layer with the dielectric layer, such as during high temperature conditions during manufacture.Type: GrantFiled: April 30, 2002Date of Patent: June 15, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Hans-Helmut Bechtel, Wolfgang Busselt, Joachim Opitz, Harald Glaeser
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Patent number: 6747408Abstract: A plasma display device is disclosed. The plasma display device has a first panel and a second panel parallel to each other. A dielectric layer is formed on the second panel, a plurality of barrier ribs are formed on the dielectric layer, and a plurality of buffer layers are formed opposite to the barrier ribs. The buffer layers have a first softening temperature, the barrier ribs have a second softening temperature, and the first softening temperature is lower than the second softening temperature. The buffer layers can be deformed and compressed at a temperature higher than the first softening temperature during a process for sealing the first and second panels, so as to unify heights of the barrier ribs.Type: GrantFiled: November 26, 2001Date of Patent: June 8, 2004Assignee: Au Optronics Corp.Inventors: Wen-Fa Sung, Yao-Ching Su, Jin-Yuh Lu
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Patent number: 6744203Abstract: A plasma display panel including a substrate having via holes, partitions spaced a predetermined distance apart on the substrate, address electrodes having a predetermined pattern on portions of the substrate between adjacent pairs of the partitions, each address electrode being split into at least three parts with each split part corresponding to two pixels, a first dielectric layer on the substrate to cover the address electrodes and where the via holes correspond to the address electrodes, a conductive layer in the via holes and electrically connected with the address electrodes, terminals connected to the conductive layer on the rear surface of the substrate, a transparent front plate disposed opposite the substrate, sustaining electrodes on the front plate at a predetermined angle with respect to a direction of the address electrodes, the sustaining electrodes comprising pairs of first and second electrodes, and a second dielectric layer on the front plate to cover the sustaining electrodes.Type: GrantFiled: March 13, 2002Date of Patent: June 1, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Jae-Seok Jeong, Dae-Young Hong
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Patent number: 6744201Abstract: A plasma information display element of the present invention includes a first substrate; a second substrate opposing the first substrate; a plurality of barrier ribs provided between the first substrate and the second substrate; and a plurality of discharge channels defined by the first substrate, the second substrate and the barrier ribs. The plasma information display element further includes: an anode and a cathode provided on one side of the first substrate that is closer to the second substrate; and a protective layer provided so as to cover the anode and the cathode, wherein the protective layer is a layer that contains (220)-oriented MgO and (200)-oriented MgO.Type: GrantFiled: September 26, 2002Date of Patent: June 1, 2004Assignee: Sharp Kabushiki KaishaInventors: Junichiro Nakayama, Masanobu Tanaka
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Patent number: 6741032Abstract: A plasma display panel having a helicon plasma source. First and second substrates are mounted substantially in parallel with a predetermined gap therebetween. A plurality of address electrodes are formed on a surface of the first substrate opposing the second substrate. A first dielectric layer is formed covering the address electrodes. A plurality of barrier ribs are formed on the first dielectric layer at a predetermined height, the barrier ribs defining discharge cells. A phosphor layer is formed in the discharge cells. A plurality of discharge sustain electrodes are formed on a surface of the second substrate opposing the first substrate. A second dielectric layer is formed on the second substrate covering the discharge sustain electrodes. Discharge gas injected into the discharge cells. Antenna and magnet assemblies are provided to increase a plasma density in the discharge cells.Type: GrantFiled: December 3, 2002Date of Patent: May 25, 2004Assignee: Samsung SDI Co., Ltd.Inventor: Hun-Suk Yoo
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Patent number: 6737806Abstract: A plasma display panel and a method of manufacturing the same are provided to prevent data electrode from being reacted with the sodium component contained in a back glass to change its color or to be cut while the data electrodes are formed on a back plate constructing the plasma display panel, thereby improving the quality of the back plate. The plasma display panel includes a front plate constructed in a manner that a plurality of scan electrodes and sustain electrodes, a first dielectric layer and a protection layer are sequentially formed on a glass substrate, a back plate constructed in a manner that a plurality of data electrodes are formed on a glass substrate, barriers formed between the front and back plates to define discharge cells, and fluorescent materials formed between the barriers. The plasma display panel further has a transparent electrode layer that is at least partially formed between the glass substrate of the back plate and the data electrodes.Type: GrantFiled: October 2, 2001Date of Patent: May 18, 2004Assignee: LG Electronics Inc.Inventor: Jae Heon Jeong
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Patent number: 6737804Abstract: A barrier rib structure for a plasma display panel is described. The barrier rib structure formed on a back substrate has a plurality of parallel barrier ribs. Each barrier rib has a plurality of discharge spaces therein divided by separate walls. Each of the discharge spaces is connected to a small gas channel beside the barrier rib through a small connect opening.Type: GrantFiled: March 21, 2002Date of Patent: May 18, 2004Assignee: Chungwa Picture TubesInventors: Hsu-Pin Kao, Yi-Sheng Yu, Ching-Hui Lin, Kuang-Lang Chen, Sheng-Chi Lee
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Patent number: 6734627Abstract: The present invention relates to a plasma display panel to improve its light emission efficiency and lower its driving voltage. The plasma display panel of the present invention has electrodes formed on a front substrate. The electrodes of the plasma display panel include first electrodes for receiving scan pulses, second electrodes for receiving first sustain pulses and third electrodes for receiving second sustain pulses. The first dielectric sub-layer formed on a backside of the first electrodes is formed thinner than the second dielectric sub-layer formed on backsides of the second electrodes and the third electrodes.Type: GrantFiled: September 27, 2002Date of Patent: May 11, 2004Assignee: LG Electronics Inc.Inventor: Young Joon Ahn
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Publication number: 20040075389Abstract: A plasma display panel includes first and second substrates that are substantially parallel to each other with a predetermined gap therebetween. The substrates include a display region and a non-display region. Barrier ribs are mounted between the first and second substrates within the display region and define discharge cells. The barrier ribs include an outermost barrier rib located at an edge of the display region. Dummy barrier ribs are mounted between the first and second substrates within the non-display region. The dummy barrier ribs include a first sub barrier rib disposed at a predetermined distance from the outermost barrier rib, and at least one second sub barrier rib connected to the first sub barrier rib and the outermost barrier rib.Type: ApplicationFiled: September 3, 2003Publication date: April 22, 2004Inventors: Woo-Tae Kim, Eun-Gi Heo
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Patent number: 6720732Abstract: A barrier rib structure for a plasma display panel is described. The barrier rib structure formed on a back substrate has a plurality of parallel barrier ribs. Each barrier rib has a plurality of nodes composed of two side-expanded trapezoid bulges. The barrier ribs are arranged according to the nodes to form a plurality of discharge spaces between the barrier ribs and a plurality of gas channels between the nodes to connect the discharge space.Type: GrantFiled: March 27, 2002Date of Patent: April 13, 2004Assignee: Chunghwa Picture Tubers, Ltd.Inventors: Hsu-Pin Kao, Yi-Sheng Yu, Ching-Hui Lin, Kuang-Lang Chen, Sheng-Chi Lee
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Patent number: 6700324Abstract: The invention relates to a plasma picture screen with a improved white color point. The front plate (1) of the plasma picture screen has a blue layer on the side facing the plasma discharge. This may be the dielectric layer (4), the protective layer (5), or an additional layer.Type: GrantFiled: May 6, 2002Date of Patent: March 2, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Hans-Helmut Bechtel, Wolfgang Busselt, Joachim Opitz, Harald Glaeser, Thomas Juestel, Volker Van Elsbergen
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Patent number: 6700325Abstract: A recessed groove h is formed in a portion of an inner surface of a front glass substrate 10 facing a non-display area between adjacent discharge cells C in a column direction. Each of adjacent bus electrodes Xb and Yb of the respective row electrodes X and Y positioned back to back in between the adjacent row electrode pairs (X, Y) is formed to extend along the corresponding side face of the two side faces of the recessed groove h in such a way as to raise the bus electrode in relation to the corresponding transparent electrode Xa or Ya in a thickness direction of the front glass substrate 10.Type: GrantFiled: September 20, 2002Date of Patent: March 2, 2004Assignees: Pioneer Corporation, Pioneer Display Products CorporationInventor: Mario Amatsuchi
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Patent number: 6696787Abstract: A plasma display panel including a front plate, at least one electrode disposed on the front plate and connected to a drive circuit, a back plate opposing the front plate, the back plate being spaced apart from the front plate, at least one electrode disposed on the back plate and connected to the drive circuit, and a plurality of partition walls disposed between the front plate and the back plate. The partition walls divide a space between the front plate and the back plate into a plurality of display cells. Each of the partition walls is formed by a sheet-like metal plate having an insulated exterior surface, or by laminating a plurality of sheet-like metal plates each having an insulated exterior surface. At least one sheet-like metal plate of each of the partition walls is connected to the drive circuit.Type: GrantFiled: July 2, 2002Date of Patent: February 24, 2004Assignee: Hitachi, Ltd.Inventor: Yutaka Akiba
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Patent number: 6685523Abstract: A method for fabricating a PDP is disclosed. The method for fabricating a PDP including the steps of preparing first and second panels for connecting with each other, forming at least one electrode on the first panel, forming a dielectric layer of PbO on the first panel, sequentially forming Cr and Ni on the PbO layer as a mask material of the PbO layer, performing photolithography and lift-off processes on the Ni/Cr layers to form a mask pattern of Ni/Cr, and etching the PbO layer using the mask pattern of Ni/Cr to form at least one capillary tube within the PbO layer to expose the electrode.Type: GrantFiled: June 21, 2001Date of Patent: February 3, 2004Assignee: Plasmion Displays LLCInventors: Steven Kim, Geun Young Yeom, Young-Joon Lee
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Publication number: 20040017155Abstract: A substrate assembly for a gas discharge panel, comprising a dielectric layer and a protective layer of MgO being formed in this order on a substrate having electrodes,Type: ApplicationFiled: July 11, 2003Publication date: January 29, 2004Applicant: Fujitsu LimitedInventors: Minoru Hasegawa, Osamu Toyoda
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Patent number: 6683589Abstract: Barrier ribs of the second type (50) of the same height and material as barrier ribs of the first type (29) are formed on a second substrate in parallel with each other along a first direction (D1) to which display electrodes XE and YE extend. Further, phosphors (28) adhere to both side surface portions (50W3 and 50W4) of the barrier ribs of the second type (50). This achieves a surface discharge type PDP capable of reducing a loss of ultraviolet rays due to repetition of the self absorption and emission of ultraviolet rays, and preventing the leakage of luminescence and discharge to adjacent display lines.Type: GrantFiled: April 9, 2001Date of Patent: January 27, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Ko Sano, Kanzou Yoshikawa, Takeo Saikatsu, Takao Yasue, Toyohiro Uchiumi
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Patent number: 6680573Abstract: A plasma display panel having higher light-emitting luminance and efficiency of a discharge cell includes: a plurality of first barriers successively formed on a substrate at predetermined intervals; a plurality of first sustain electrodes formed at a width more than 40% of a pixel pitch, which is an overall distance of four of the barriers, to be orthogonal to the first barriers; a plurality of second sustain electrodes spaced apart from the first sustain electrodes at a distance less than 20% of the pixel pitch and mated with the first sustain electrodes one by one; a dielectric layer formed at a thickness of 25 &mgr;m or more to cover the first and second sustain electrodes; and a plurality of pads formed on some of the dielectric layer corresponding to the first sustain electrodes and the second sustain electrodes in each discharge cell.Type: GrantFiled: July 25, 2000Date of Patent: January 20, 2004Assignee: LG Electronics Inc.Inventors: Jae Sung Kim, Chung Huan Jeon, Eun Cheol Lee, Young Joon Ahn, Seok Dong Kang, Sung Yong Ahn
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Patent number: 6674238Abstract: In a plasma display panel, a partition wall 15 surrounds each of discharge cells to define the discharge cells. Each of the discharge cells is divided by a second transverse wall 15B into a display discharge cell C1 which is opposite transparent electrodes Xa, Ya of paired row electrodes X, Y to provide for a sustaining discharge; and an addressing discharge cell C2 which is opposite a bus electrode Yb of the row electrode Y to provide for an addressing discharge caused between the bus electrode Yb and a column electrode D. A clearance r is provided between the discharge cell C1 and the addressing discharge cell C2 for communication between the cells C1 and C2.Type: GrantFiled: June 28, 2002Date of Patent: January 6, 2004Assignees: Pioneer Corporation, Pioneer Display Products CorporationInventors: Eishiro Otani, Hitoshi Taniguchi, Chiharu Koshio, Yoichi Sato
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Patent number: 6674236Abstract: A display panel is provided that has a multilayer structure made of a colored glass layer having a desired shape and optical characteristics and a non-colored glass layer having high transparency, as well as high productivity. The display panel has a non-colored glass layer and a colored glass layer contacting the non-colored glass layer. A multilayer structure is formed that includes a colored paste layer and a non-colored paste layer. In the colored paste layer, crystallization glass powder that is crystallized at the temperature TA and coloring agent are diffused. In the non-colored paste layer, glass powder whose softening point is the temperature TB that is higher than the temperature TA. The multilayer structure is heated to the temperature TC that is higher than the temperature TB and is lower than the softening point of the crystallization glass powder after the crystallization to be burned, so that the non-colored glass layer and the colored glass layer are formed simultaneously.Type: GrantFiled: April 20, 2000Date of Patent: January 6, 2004Assignee: Fujitsu LimitedInventors: Noriyuki Awaji, Shinji Tadaki
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Plate for a plasma display panel (PDP), method for fabricating the plate, and a PDP having the plate
Patent number: 6674237Abstract: A plate for a plasma display panel includes a plate member formed of a transparent material, a series of electrodes formed in a predetermined pattern on the plate member, and a dielectric layer formed on the plate member to cover the electrodes, wherein the electrodes are formed of a dielectric first component, and a metallic second component of at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt).Type: GrantFiled: September 10, 2001Date of Patent: January 6, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Young-rag Do, Chang-won Park, Joon-bae Lee, Chaun-gi Choi