Coplanar Electrodes Patents (Class 313/494)
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Patent number: 11450291Abstract: The resolution of a low-resolution image is made high and a stereoscopic image is displayed. Resolution is made high by super-resolution processing. In this case, the super-resolution processing is performed after edge enhancement processing is performed. Accordingly, a stereoscopic image with high resolution and high quality can be displayed. Alternatively, after image analysis processing is performed, edge enhancement processing and super-resolution processing are concurrently performed. Accordingly, processing time can be shortened.Type: GrantFiled: June 3, 2021Date of Patent: September 20, 2022Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventor: Hajime Kimura
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Patent number: 11031447Abstract: A flexible display is disclosed. The flexible display includes a flexible substrate and a thin film transistor array positioned on the flexible substrate and including a thin film transistor, an organic light emitting diode, inorganic layers, and organic layers. At least one of the inorganic layers is exposed to a side of the flexible substrate. At least one of the organic layers is positioned on the at least one inorganic layer and is exposed to the side of the flexible substrate.Type: GrantFiled: October 20, 2017Date of Patent: June 8, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Eunah Kim, Sangcheon Youn, Saemleenuri Lee
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Patent number: 10903444Abstract: Embodiments of the present disclosure provide an OLED package substrate, a manufacturing method thereof, and an OLED display panel. The OLED package substrate comprises a display area and a non-display area, the display area comprising a pixel definition area. The OLED package substrate comprises a base substrate, and a conductor on the base substrate and within the pixel definition area. The conductor is configured to be in contact with a cathode or an anode at a surface of an array substrate for assembly with the OLED package substrate.Type: GrantFiled: July 11, 2017Date of Patent: January 26, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hongwei Tian, Yanan Niu
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Patent number: 10809836Abstract: The present invention provides technology for decreasing a reduction in yield due to malfunctions of a touch panel. A display device with a touch panel according to the present invention includes a display panel that includes pixels arranged in a matrix and a plurality of first electrodes and second electrodes for detecting a touched position in a display region provided with the plurality of pixels by capacitive sensing. The first electrodes extend in a first direction in the display region, and the second electrodes extend in a second direction that crosses the first direction in the display region. The display panel includes repairing conductive sections that are formed of conductive members. The repairing conductive sections are provided in such a manner that at least one repairing conductive section is provided for each of the plurality of first electrodes and is arranged along at least part of the first electrode.Type: GrantFiled: April 11, 2019Date of Patent: October 20, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Tohru Shirai, Kazutoshi Kida
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Patent number: 10439101Abstract: Micro light-emitting diode (LED) displays and assembly apparatuses are described. In an example, a pixel element for a micro-light emitting diode (LED) display panel includes a first color nanowire LED, a second color nanowire LED, the second color different than the first color, and a pair of third color nanowire LEDs, the third color different than the first and second colors. A continuous insulating material layer ius laterally surrounding the first color nanowire LED, the second color nanowire LED, and the pair of third color nanowire LEDs.Type: GrantFiled: August 18, 2017Date of Patent: October 8, 2019Assignee: Intel CorporationInventors: Khaled Ahmed, Anup Pancholi, Ali Khakifirooz
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Patent number: 10120233Abstract: An optical member for a multi-panel display device includes a first optical member located on a first display device and including optical fibers; a second optical member located on a second display device neighboring the first display device and including optical fibers; and an optical fiber triangular bar located to overlap a region where the first and second optical members are adjacent to each other, and including optical fibers, wherein each of the first and second optical members includes a chamfer portion corresponding to the optical fiber triangular bar at the region where the first and second optical members are adjacent to each other.Type: GrantFiled: June 20, 2017Date of Patent: November 6, 2018Assignee: LG Display Co., Ltd.Inventors: Seung-Soo Yang, Bo-Ra Kim, Mi-Hyung Chin, Se-Jin Lee
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Patent number: 9978994Abstract: The present disclosure relates to an organic light emitting display panel and a display apparatus. The organic light emitting display panel includes: a first substrate provided with a plurality of pixels each comprising an organic light emitting diode; a second substrate having at least one auxiliary electrode electrically connected to a cathode of the organic light emitting diode, each auxiliary electrodes being located on a side of the second substrate facing the first substrate and corresponding to a gap between adjacent pixels on the first substrate; and an antireflection layer formed on the auxiliary electrode for absorbing light rays directed to the auxiliary electrode. In the present disclosure, by the auxiliary electrode formed on the second substrate and electrically connected to the cathode on the first substrate, the voltage drop of the cathode may be significantly reduced, and the uniformity of the display brightness is improved.Type: GrantFiled: April 24, 2014Date of Patent: May 22, 2018Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wulin Shen, Dongfang Wang, Haijing Chen
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Patent number: 9947888Abstract: An organic light emitting device includes: one thin film transistor (TFT) and a first auxiliary electrode on the first substrate; a second auxiliary electrode being overlapped and being electrically connected with the first auxiliary electrode; a light emitting unit above and being electrically connected with the TFT, the light emitting unit comprising a first and a second pixel electrode, an organic light-emitting layer between the first and the second pixel electrode; wherein the second pixel electrode comprising a first area and a second area connecting with the first area, the first area being above and electrically connecting with the second auxiliary electrode, wherein the organic light-emitting layer being spaced apart from the second auxiliary electrode by a portion between the organic light-emitting layer and the second auxiliary electrode; and wherein tops of the first and the second area of the second pixel electrode are on the same plane.Type: GrantFiled: August 25, 2015Date of Patent: April 17, 2018Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventor: Jiangbo Yao
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Patent number: 9360978Abstract: A touch screen display device includes a plurality of pixels and a plurality of touch sensing units. Each touch sensing unit includes a sensing transistor, a first touch electrode between a gate electrode and a semiconductor layer of the sensing transistor, a second touch electrode spaced from the first touch electrode, and a coupling portion to couple the first and second touch electrodes.Type: GrantFiled: August 11, 2014Date of Patent: June 7, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Sang-Jin Pak
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Patent number: 8810123Abstract: An inorganic electroluminescence device has a structure including a phosphor layer sandwiched between a first electrode and a second electrode; and a semiconductor structure in which N-type semiconductors and a P-type semiconductor, made of inorganic semiconductor materials, are joined to form an NPN type structure. The phosphor is made of an inorganic substance. The first electrode is to be a cathode and is formed on an insulating glass substrate. The second electrode is to be an anode and is disposed opposite the first electrode. The semiconductor structure is disposed between the cathode that is the first electrode and the phosphor layer.Type: GrantFiled: September 22, 2011Date of Patent: August 19, 2014Assignee: Kohundo Printing Company Ltd.Inventor: Takuyoshi Ishimura
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Patent number: 8637876Abstract: Disclosed are a light emitting device and a light emitting device package having the same. The light emitting device includes a plurality of light emitting cells including a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer; a first electrode layer connected to the first conductive semiconductor layer of a first light emitting cell of the plural light emitting cells; a plurality of second electrode layers under the light emitting cells, a portion of the second electrode layers being connected to the first conductive semiconductor layer of an adjacent light emitting cells; a third electrode layer disposed under a last light emitting cell of the plural light emitting cells; a first electrode connected to the first electrode layer; a second electrode connected to the third electrode layer; an insulating layer around the first to third electrode layers; and a support member under the insulating layer.Type: GrantFiled: August 30, 2010Date of Patent: January 28, 2014Assignee: LG Innotek Co., Ltd.Inventors: Sang Youl Lee, Jung Hyeok Bae, Ji Hyung Moon, Juno Song
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Patent number: 8598619Abstract: A semiconductor light emitting device includes a substrate and a plurality of light emitting cells arranged on the substrate. Each of the light emitting cells includes a first-conductivity-type semiconductor layer, a second-conductivity-type semiconductor layer, and an active layer disposed therebetween to emit blue light. An interconnection structure electrically connects the first-conductivity-type and the second-conductivity-type semiconductor layers of one light emitting cell to the first-conductivity-type and the second-conductivity-type semiconductor layers of another light emitting cell. A light conversion part is formed in a light emitting region defined by the light emitting cells and includes a red and/or a green light conversion part respectively having a red and/or a green light conversion material.Type: GrantFiled: February 24, 2011Date of Patent: December 3, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Je Won Kim, Tae Sung Jang, Jong Gun Woo, Jong Ho Lee
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Patent number: 8575832Abstract: The present invention relates to a field emission display, which includes: a base substrate; a plurality of cathode strips, disposed over the base substrate; an insulating layer, disposed over the cathode strips and having a plurality of openings, therewith the openings corresponding to the cathode strips; a plurality of anode strips, disposed over the insulating layer, where the cathode strips and the anode strips are arranged into a matrix and the anode strips individually have at least one impacted surface; and a plurality of subpixel units, individually including: an emissive region having a phosphor layer disposed over the impacted surface; and at least one emissive protrusion, corresponding to the emissive region and disposed in the openings to electrically connect to the cathode strips and protrude out of the openings. Accordingly, the present invention can enhance light utilization efficiency of a field emission display.Type: GrantFiled: April 13, 2011Date of Patent: November 5, 2013Assignee: Tatung CompanyInventors: Tzung-Han Yang, Chi-Tsung Lo
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Patent number: 8538224Abstract: A light extraction film having internal nanostructures and external microstructures for organic light emitting diode (OLED) devices. The light extraction film includes a flexible substantially transparent film, a low index nanostructured layer applied to the film, and a high index planarizing backfill layer applied over the nanostructured layer. External optical microstructures are applied to the flexible substantially transparent film on a side opposite the nanostructured layer to enhance light extraction from the OLED devices while providing for a more uniform luminance distribution.Type: GrantFiled: April 22, 2010Date of Patent: September 17, 2013Assignee: 3M Innovative Properties CompanyInventors: Sergey A. Lamansky, Terry L. Smith, Jun-Ying Zhang, Leslie A. Todero, Encai Hao, Ha T. Le, Ding Wang, Fei Lu, Shoichi Masuda
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Patent number: 8525401Abstract: A display panel with secured mechanical reliability comprises: a first plate including a display region and a non display region, a second plate facing the first plate, a first frit portion interposed between the first plate and the second plate and sealing the display region from outside, and a second frit portion separated from the first fit portion and comprising a plurality of sub-frits isolated from each other. The sub-frits are located between a first line which passes through points closest to edges of the first plate among outer points of the first frit portion with respect to a sealed space and extends parallel to the edges of the first plate and a second line which passes through points furthest from the edges of the first plate among inner points of the first frit portion with respect to the sealed space and extends parallel to the edges of the first plate.Type: GrantFiled: November 8, 2011Date of Patent: September 3, 2013Assignee: Samsung Display Co., Ltd.Inventor: Choong-Ho Lee
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Patent number: 8410676Abstract: The present invention relates to a sheet-shaped heat and light source. The sheet-shaped heat and light source includes a carbon nanotube layer and at least two electrodes. The at least two electrodes are separately disposed on the carbon nanotube layer and electrically connected thereto. Moreover, a method for making the sheet-shaped heat and light source and a method for heating an object adopting the same are also included.Type: GrantFiled: December 29, 2007Date of Patent: April 2, 2013Assignees: Beijing Funate Innovation Technology Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chen Feng, Peng Liu, Kai-Li Jiang, Yang Wei, Shou-Shan Fan
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Patent number: 8294354Abstract: The present invention relates to a field emission light source device, which includes: a base substrate; at least one cathode strip, disposed over the base substrate; at least one emissive protrusion, disposed over the cathode strip and electrically connected to the cathode strip; an insulating layer, disposed over the cathode strip and having at least one opening to allow the emissive protrusion to protrude out of the opening; at least one anode strip, disposed over the insulating layer, where the cathode strip and the anode strip are arranged into an m×n matrix and the at least one anode strip individually has an impacted surface corresponding to the emissive protrude; and a phosphor layer disposed over the impacted surface. Accordingly, the present invention can enhance light utilization efficiency of a field emission light source device.Type: GrantFiled: April 13, 2011Date of Patent: October 23, 2012Assignee: Tatung CompanyInventors: Tzung-Han Yang, Chi-Tsung Lo
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Patent number: 8203264Abstract: A flat panel display and a method of fabricating the same are provided. The flat panel display includes a conductor, and a passivation layer pattern disposed on a side end of the conductor. As such, the passivation layer pattern can prevent or reduce corrosion and damage of the conductor. In one embodiment, the conductor includes a conductive layer formed of a material selected from the group consisting of aluminum and an aluminum alloy. The passivation layer pattern may be formed of an organic material or an inorganic material.Type: GrantFiled: December 8, 2006Date of Patent: June 19, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Tae-Wook Kang, Won-Kyu Kwak, Jeong-Bai Choi, Moon-Hee Park, Dong-Young Sung
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Patent number: 8179031Abstract: A surface light source includes a plate type light source body having a sealed discharging space formed therein, a plate type electrode unit having a plurality of regions adjacent to at least one major surface of the light source body, and a multiple voltage applying unit operable to apply voltages independently to each of the plurality of regions. In this way, brightness of the surface light source can be controlled independently in each of the plurality of regions and a local dimming for a surface light source can be realized.Type: GrantFiled: September 18, 2007Date of Patent: May 15, 2012Assignee: Samsung Corning Precision Materials Co., Ltd.Inventors: Seok Mo Ban, Ki Yeon Lee, Kyeong Taek Jung, Hyung Bin Youn, Keun Seok Lee, Dong Hee Lee, Won Do Kee, Yong Keun Jee
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Patent number: 8089079Abstract: A light emitting device includes a package body including a multilayer cavity; a first light emitting part including a first light emitting device in a first cavity of a first layer area of the multilayer cavity, and a second light emitting part including a second light emitting device in a second cavity of a second layer area higher than the first layer area.Type: GrantFiled: June 24, 2008Date of Patent: January 3, 2012Assignee: LG Innotek Co., Ltd.Inventor: Kwang Cheol Lee
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Patent number: 8053982Abstract: One embodiment of the present invention relates to a light-emitting diode having one or more light-emitting layers, a pair of electrodes disposed on the light-emitting diode so that an operating voltage can be applied to generate light from the one or more light-emitting layers, and at least one external electrode in electronic communication with the one or more light-emitting layers. Applying an appropriate voltage to the at least one external electrodes at about the time the operating voltage is terminated extracts excess electrons from the one or more light-emitting layers and reduces the duration of electron-hole recombination during the time period over which the operating voltage is turned off.Type: GrantFiled: October 1, 2008Date of Patent: November 8, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Alexandre Bratkovski, Shih-Yuan Wang, Michael Tan, Theodore I. Kamins
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Patent number: 8035289Abstract: A flat discharge lamp transmitting radiation in ultraviolet or visible, including first and second flat, or substantially flat, glass elements substantially parallel to each other and defining an internal space filled with gas, the first and/or second glass element being made of a material that transmits the radiation; at least one first electrode and at least one second electrode, which may be at different potentials and may be supplied by an AC voltage, the first and second electrodes being associated with one or more main faces of the first glass element, the first and second electrodes being essentially elongate and substantially parallel to one another, and separated by at least one interelectrode space of given width substantially constant; and at least one third electrode which may be at a given potential associated with a main face of the second glass element and at least partly occupying, in projection, the interelectrode space.Type: GrantFiled: August 16, 2006Date of Patent: October 11, 2011Assignee: Saint-Gobain Glass FranceInventors: Guillaume Auday, Jingwei Zhang, Didier Duron, Philippe Guillot, Thierry Callegari, Philippe Belenguer
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Patent number: 7993747Abstract: A light emitting composition includes a light-emitting lumophore-functionalized nanoparticle, such as an organic-inorganic light-emitting lumophore-functionalized nanoparticle. A light emitting device includes an anode, a cathode, and a layer containing such a light-emitting composition. In an embodiment, the light emitting device can emit white light.Type: GrantFiled: May 11, 2007Date of Patent: August 9, 2011Assignee: Nitto Denko CorporationInventors: Amane Mochizuki, Jesse Dan Froehlich, Sheng Li, Toshitaka Nakamura, Robin Irene Young, Ghassan E. Jabbour, Michael E. Lauters
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Patent number: 7952265Abstract: An electron-emitting device, comprising: a pair of device electrodes formed on an insulating substrate; and a conductive film formed to connect the device electrodes and having an electron-emitting portion, wherein the conductive film has a thickness of 3 nm to 50 nm and is made of precious metal and oxide of base metal, a percentage of the base metal among metals contained in the conductive film is 30 mol % or more, and the conductive film has a concentration gradient of the oxide of the base metal in a thickness direction.Type: GrantFiled: August 1, 2008Date of Patent: May 31, 2011Assignee: Canon Kabushiki KaishaInventors: Takashi Iwaki, Tsuyoshi Ibe, Masahiro Terada
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Patent number: 7905625Abstract: A fluorescent lamp includes a fluorescent tube, a thermal electron, a first cover electrode and a second cover electrode. The fluorescent tube has a discharge space. The thermal electron emitting part is disposed in the discharge space. The first cover electrode is disposed at an end portion of the fluorescent tube, and is electrically connected to a first end portion of the thermal electron emitting part. The second cover electrode is spaced apart from the first cover electrode disposed at the end portion of the fluorescent tube, and is electrically connected to a second end portion of the thermal electron emitting part. The thermal electron emitting part is electrically connected to the first cover electrode and the second cover electrode.Type: GrantFiled: February 19, 2008Date of Patent: March 15, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Jin Kim, Seok-Hyun Nam, Sang-Hyuck Yoon
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Patent number: 7876044Abstract: Provided is a plasma display apparatus. The plasma display apparatus includes a scan electrode and a sustain electrode, a boundary barrier rib, and a filter. The scan and sustain electrodes are formed in parallel with each other on a front substrate. The boundary barrier rib is formed on a rear substrate facing the front substrate, and partitions a discharge cell into two up/down neighbor cells. The filter is positioned in front of a panel. The filter includes an external light shield sheet including a first base part and a first pattern part, and an ElectroMagnetic Interference (EMI) shield sheet. A thickness of the external light shield sheet is 1.01 to 2.25 times of a height of the first pattern part. The sustain electrode is commonly formed only one for the two up/down neighbor cells.Type: GrantFiled: November 28, 2006Date of Patent: January 25, 2011Assignee: LG Electronics Inc.Inventor: Hong Tak Kim
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Patent number: 7839070Abstract: A field emission device has pixels with cathode and anode provided on the same plane, so that electrons directly penetrate an independently provided fluorescent powder layer to produce light, giving the display the advantages of easy focusing, no dark spots, high brightness, and enhanced light emitting performance. Since the light produced by the fluorescent powder layer is not blocked by the anode, the problem of charge accumulation on the fluorescent powder layer is avoided, and it is not necessary to use expensive light-transmittable conducting glass as the anode. With the cathode and the anode located at the same plane, it is not necessary to use a high precision spacer to maintain a fixed distance between the cathode and the anode, enabling the device to be manufactured at reduced cost and high good yield.Type: GrantFiled: June 30, 2006Date of Patent: November 23, 2010Assignee: Industrial Technology Research InstituteInventors: Jung-Yu Li, Shih-Pu Chen, Yi-Ping Lin, Wei-Chih Lin
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Publication number: 20100244661Abstract: A field emission device has pixels with cathode and anode provided on the same plane, so that electrons directly penetrate an independently provided fluorescent powder layer to produce light, giving the display the advantages of easy focusing, no dark spots, high brightness, and enhanced light emitting performance. Since the light produced by the fluorescent powder layer is not blocked by the anode, the problem of charge accumulation on the fluorescent powder layer is avoided, and it is not necessary to use expensive light-transmittable conducting glass as the anode. With the cathode and the anode located at the same plane, it is not necessary to use a high precision spacer to maintain a fixed distance between the cathode and the anode, enabling the device to be manufactured at reduced cost and high good yield.Type: ApplicationFiled: June 30, 2006Publication date: September 30, 2010Applicant: Industrial Technology Research InstituteInventors: Jung-Yu Li, Shih-Pu Chen, Yi-Ping Lin, Wei-Chin Lin
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Publication number: 20100156271Abstract: An apparatus includes light emitting members; anode electrodes disposed on the light emitting members in an overlapping manner; a partition member disposed between adjacent light emitting members; a resistance member disposed on the partition member, the resistance member connecting adjacent anode electrodes to each other; and a feeding electrode connecting the resistance member to a power supply, wherein the feeding electrode is disposed on a base adjacent to the partition member, and the feeding electrode is connected, on the base, to the resistance member and to a power supply.Type: ApplicationFiled: December 17, 2009Publication date: June 24, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Ginjiro Toyoguchi
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Patent number: 7710011Abstract: A flat light source including a first substrate, a second substrate, a sealant, several sets of dielectric pattern and a phosphor layer is provided. The first substrate has electrodes thereon. The sealant is disposed between the first and second substrates to form a space between the first and second substrates and the sealant. These sets of dielectric pattern are formed in the space between the first and second substrates. Each set of dielectric pattern has at least two dielectric strips, and each dielectric strip covers one of the electrodes correspondingly. Each dielectric strip has a top surface and two side surfaces, and the top surface has an uneven contour. The phosphor layer is disposed between the two dielectric strips of each set of dielectric pattern, and the phosphor layer is further disposed on the top surface of the dielectric strips.Type: GrantFiled: December 16, 2005Date of Patent: May 4, 2010Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Chao-Jen Chang, Chu-Chi Ting, Su-Chiu Lee
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Publication number: 20100102706Abstract: An electroluminescent device including at least two spaced-apart electrodes wherein at least a portion of each of the two spaced-apart electrodes overlap within a first area and a second portion of the two spaced-apart electrodes do not overlap within a second area; a light-emitting layer having a first resistivity formed between the two electrodes, the light-emitting layer disposed to overlap at least a portion of both the first and second areas; a carrier-diffusing layer formed between the light-emitting layer and one of the spaced-apart electrodes; the carrier-diffusing layer disposed to overlap the light-emitting layer in at least a portion of both the first and second areas; and wherein the carrier-diffusing layer has a second resistivity selected to be lower than the first resistivity to cause light to be produced by the light-emitting layer within the first and second areas.Type: ApplicationFiled: October 28, 2008Publication date: April 29, 2010Inventors: Michael E. Miller, Liang-Sheng Liao
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Patent number: 7654712Abstract: A lamp module is constructed of a light source part made of a semiconductor light emitting element, and an optical member for distributing light emitted from the light source part. The light source part includes a surface-emitting laser element in which plural light emission parts are parallel arranged on a surface, a mask which is disposed on a surface of the surface-emitting laser element and includes plural mask openings for exposing the light emission parts, and fluorescent substances with which the mask openings are filled. By forming the light source part in a monolithic configuration, an array pitch of the plural light emission parts can be decreased, a light source can be miniaturized and also a lamp can be further miniaturized.Type: GrantFiled: June 27, 2007Date of Patent: February 2, 2010Assignee: Koito Manufacturing Co., Ltd.Inventors: Hitoshi Takeda, Tsukasa Tokida
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Publication number: 20090316067Abstract: A light emission device includes first and second substrates facing each other. An electron emission unit is located on a surface of the first substrate and that has an electron emission element. A light emission unit is located on a surface of the second substrate. The electron emission element has first electrodes located on a surface of the first substrate and spaced apart from each other. Second electrodes are located between the first electrodes in parallel with each other. Electron emission regions are located on side surfaces of the first electrodes facing the second electrodes. The first and second electrodes are oblique relative to one of planar orthogonal coordinate directions of the first substrate.Type: ApplicationFiled: June 23, 2009Publication date: December 24, 2009Inventors: So-Ra Lee, Jae-Myung Kim, Kyu-Nam Joo, Yoon-Jin Kim, Jae-Sun Jeong
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Publication number: 20090189508Abstract: A backlight unit includes a base substrate and a first electrode which is formed on the base substrate in a line. An electron emission layer is formed on the first electrode in the substantially same pattern as the first electrode. A second electrode supporter is formed on the base substrate and disposed on sides of the first electrode and the electron emission layer. A second electrode is formed on the second electrode supporter and has an aperture pattern. A third electrode is formed on the front substrate for accelerating electrons emitted from the electron emission layer. A phosphor layer is formed on the third electrode responsive to electrons accelerated by the third electrode.Type: ApplicationFiled: December 22, 2008Publication date: July 30, 2009Inventors: Jae-Sang Ha, Sang-Jin Lee
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Publication number: 20090167145Abstract: There is disclosed an electroluminescent device (200; 300; 400; 500) in which a phosphor (6) is deposited in gaps (3) between electrodes (2a, 2b). The deposition of phosphor on top of the electrodes is minimised as phosphor on top of the centre of an electrode will not experience a significant electrical field and thus will not usefully emit light. Some embodiments improve the efficiency with which phosphor is utilised during manufacture. In some embodiments (400; 500) the electrodes and phosphor may be on opposite sides of a substrate (1). In some embodiments (100), the phosphor has a sufficiently high dielectric strength that a dielectric layer between the phosphor and the electrodes is not required.Type: ApplicationFiled: March 16, 2007Publication date: July 2, 2009Applicant: Brunel UniversityInventors: Rob Withnall, Jack Silver, George Fern, Peter Evans, David Harrison
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Publication number: 20090160311Abstract: An EL light-emitting device includes an insulating board, to which an EL light-emitting sheet is fixed on a front surface of the insulating board for allowing penetration, an output terminal disposed on a back surface of the insulating board, which exhibits conductivity and allows penetration, a drive circuit connected to the output terminal, and a conductive member with a pointed portion which fixes the EL light-emitting sheet to the front surface of the insulating board, and conducts the electrode of the EL light-emitting sheet and the output terminal by penetrating the electrode of the EL light-emitting sheet and the output terminal. The force for fixing a sheet EL element is sufficiently strong such that plural sheet EL elements are attached through simple installation work.Type: ApplicationFiled: November 12, 2008Publication date: June 25, 2009Applicant: RISO KAGAKU CORPORATIONInventors: Mutsumi Kubota, Mamoru Fukuda, Hiroaki Ishii
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Patent number: 7545092Abstract: An organic electroluminescent (EL) display device is provided which can reduce a level of power consumption. The organic EL display device includes a plurality of anode columns formed on a substrate, each anode column having first and second anodes disposed adjacent to each other, with emitting areas of the first and second anodes being arranged alternately in a line; a plurality of walls intersecting the anode columns. A plurality of cathodes are formed between walls which intersect the anode columns to form two sub pixels. A plurality of secondary walls are formed between two adjacent walls, between the light emitting areas of the first and second anodes of each anode column. Each secondary wall may include a plurality of unit walls corresponding to one pixel with first, second and third sub pixels which emit different colored lights. Alternatively, each subsidiary wall may include a plurality of unit walls, with each unit wall corresponding to one of the first, second or third sub pixels.Type: GrantFiled: November 30, 2005Date of Patent: June 9, 2009Assignee: LG Display Co., Ltd.Inventors: Hak Su Kim, Hyo Dae Bae
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Patent number: 7541733Abstract: A light-emitting element of the present invention, includes: a porous light-emitting body including an insulator having a void and an inorganic phosphor particle; and at least two electrodes provided so as to contact with a surface of the light-emitting body. A voltage is applied to the at least two electrodes so as to generate discharge, and the light-emitting body is pumped by the discharge so as to emit light. Thereby, a light-emitting element that is reduced in a deterioration of brightness and a degradation of reliability of phosphors and does not require the vacuum encapsulation and the application of a high voltage, which are required for glow discharge, and still-higher level of thin-film technology can be provided. By arranging these light-emitting elements two-dimensionally in a matrix form, a flat display device with a simple configuration can be provided at a low cost.Type: GrantFiled: August 1, 2003Date of Patent: June 2, 2009Assignee: Panasonic CorporationInventors: Iwao Ueno, Masakazu Tanahashi, Emiko Igaki
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Patent number: 7530724Abstract: A light emitting lamp and a backlight unit having the same are disclosed. The light emitting lamp is capable of reducing a tube voltage thereof and increasing an effective light emitting region via an increased area of external electrodes. The light emitting lamp includes a linear lamp tube having a plurality of protuberances formed at both ends thereof, and first and second external electrodes externally arranged at both ends of the lamp tube and having a plurality of protuberances to be engaged with the protuberances of the lamp tube.Type: GrantFiled: June 29, 2006Date of Patent: May 12, 2009Assignee: LG. Display Co., Ltd.Inventor: Seung Jun Kim
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Publication number: 20090072705Abstract: An electron emission device includes a base substrate, at least one isolation layer on the base substrate, the isolation layer having a first lateral side and a second lateral side opposite the first lateral side, first and second electrodes on the base substrate along the first and second lateral sides of the isolation layer, respectively, a first electron emission layer between the first electrode and the first lateral side of the isolation layer, and a second electron emission layer between the second electrode and the second lateral side of the isolation layer.Type: ApplicationFiled: June 9, 2008Publication date: March 19, 2009Inventors: Hyun-Ki Park, Hee-Sung Moon, Yoon-Jin Kim, Jae-Myung Kim, Kyu-Nam Joo, So-Ra Lee
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Patent number: 7435358Abstract: The UVC emission of a Sr(Al,Mg)12O19:Pr is improved by providing an excess of magnesium relative to the molar amount praseodymium In particular, the UVC-emitting phosphor has a composition represented by the formula Sr1-xPrxAl12-yMgyO19 wherein y>x. The phosphor is excited by vacuum ultraviolet radiation and may be used to create a mercury-free germicidal lamp.Type: GrantFiled: June 7, 2005Date of Patent: October 14, 2008Assignee: Osram Sylvania Inc.Inventors: Gregory A. Marking, Thomas M. Snyder
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Patent number: 7423372Abstract: An organic electroluminescence display device comprising a wiring region, including a switching thin film transistor and a driving thin film transistor, and an emission region for emitting light. Light emitted from an organic thin film layer is emitted through the wiring region and the emission region.Type: GrantFiled: April 27, 2005Date of Patent: September 9, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Won-Kyu Kwak, Byung-Hee Kim
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Patent number: 7405519Abstract: A flat fluorescent lamp is provided. Wherein, a discharge gas is disposed in a chamber, and a fluorescent material is disposed on a first inner wall and a second inner wall of the chamber. First electrode sets are disposed on the first inner wall, and second electrode sets aligned with the first electrodes sets are disposed on the second inner wall. A dielectric layer overlies the electrode sets. Each first electrode set comprises two first electrodes and a second electrode disposed between these first electrodes. Each second electrode set comprises two third electrodes and a fourth electrode disposed between these third electrodes. A first light-emitting area and a second light-emitting area are formed in each pair of the corresponding first and second electrode sets, and the projections of the first and second light-emitting areas on the first inner wall are not overlaid or just partially overlaid.Type: GrantFiled: March 21, 2006Date of Patent: July 29, 2008Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Chu-Chi Ting, Yu-Heng Hsieh, Hao-Ping Cheng
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Patent number: 7385342Abstract: A flat lamp for emitting light to a surface area of a liquid crystal display device includes a bottom having a channel uniformly crossing an entire surface of the bottom, an arc-discharging gas is disposed within the channel, a cover disposed upon an upper junction surface of the bottom, the cover is coated with a fluorescent material, and an electric field generating means for generating an electric field, wherein the electric field generating means is placed along opposing lateral sides of the channel.Type: GrantFiled: May 11, 2004Date of Patent: June 10, 2008Assignee: LG.Philips LCD Co., Ltd.Inventor: Sun Kwan Eom
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Publication number: 20080111462Abstract: An organic electro-luminescent display (“OELD”) and a method of manufacturing the OELD include: a substrate; a plurality of anodes substantially parallel with one another in a first direction and disposed on the substrate; a plurality of cathodes disposed substantially parallel with one another in a second direction orthogonal to the first direction; organic electro-luminescent parts disposed at intersections between the anodes and the cathodes; a plurality of cathode separators each disposed between the cathodes; and gaps separating lower edges of the cathode separators facing the cathodes from the substrate.Type: ApplicationFiled: July 19, 2007Publication date: May 15, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ki-deok BAE, Chan-bong JUN, Chang-seung LEE, Hong-shik SHIM
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Patent number: 7352130Abstract: First and second substrates are spaced apart and joined around a perimeter to define a gas chamber between the substrates. The first substrate is made of a material that transmits visible radiation. A layer of a phosphor material overlies an interior surface of one of the substrates and is capable of converting UV radiation to visible radiation. A layer of a reflective material overlies an interior surface of the other one of the substrates.Type: GrantFiled: March 17, 2005Date of Patent: April 1, 2008Assignee: Avago Technologies General IP Pte LtdInventors: Rene P. Helbing, Charles D. Hoke
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Patent number: 7339313Abstract: A flat fluorescent lamp (FFL) for display devices, which has an improved electrode structure for plasma discharge, thus being efficiently operated using a low voltage and having high optical efficiency, is disclosed. The FFL of the present invention is provided with a plurality of branch electrodes extending from main electrodes, provided on opposite ends of a lamp body, in opposite directions toward the opposite main electrodes and being parallel to longitudinal axes of the discharge channels. Furthermore, the FFL may include joint electrodes which electrically couple the branch electrodes, provided around each of the opposite ends of the lamp body, to each other. The FFL may further include step electrodes and/or inductive electrodes.Type: GrantFiled: January 18, 2005Date of Patent: March 4, 2008Assignee: Mirae CorporationInventor: Jae Doo Yoon
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Patent number: 7244887Abstract: Preferred electrode devices (10) including a substrate (11) and cathode (13) and anode material (12) coated thereon in discreet locations are described. The cathode materials desirably include multiple layers of thin metal films (14). Preferred cell devices including conductive elements and a solid state source of charged ions for migration into and through the conductive elements are also described.Type: GrantFiled: February 26, 2001Date of Patent: July 17, 2007Assignee: Lattice Energy LLCInventor: George H. Miley
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Patent number: 7180076Abstract: A photoionization detector includes a housing, electrical contacts within the housing and an easily removable and replaceable photoionization chamber within the housing. The photoionization chamber includes a cathodic electrode and an anodic electrode which may be coated with a thin layer of material. The photoionization chamber and the associated cathodic electrode and anodic electrode are removable from within the housing as a unit. The photoionization chamber makes electrical connection with the contacts when seated within the housing regardless of the orientation of the photoionization chamber about an axis.Type: GrantFiled: March 30, 2005Date of Patent: February 20, 2007Assignee: Mine Safety Appliances CompanyInventors: Jon K. Haverstick, Daniel E. Bruce, Michael B. Schulman, Mark F. Zanella, Sr., James A. Cahall, James B. Miller
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Patent number: 7167144Abstract: The invention concerns a plasma panel display wherein the coplanar faceplate of the display panel comprising electrode triads including each two opposite side electrodes and a central electrode, and wherein during sustain operations by application of a series of sustain voltage pulses between the electrode triads, the central electrode always acts as anode. Such an arrangement, and preferably at an adapted width of the central electrode, enables to enhance substantially the luminous efficacy of the display panel.Type: GrantFiled: June 4, 2002Date of Patent: January 23, 2007Assignee: Thomson LicensingInventor: Laurent Tessier