Patents Assigned to Optrex Corporation
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Publication number: 20110261310Abstract: A liquid crystal display device restraining display defects even in a structure having a potential difference between an externally-connected electrode potential and the mean potential of the drive waveform of a liquid crystal material. An electrostatic charge stored in the vicinity of a liquid crystal layer of the liquid crystal display device as a result of the potential difference between an externally-connected electrode potential and the mean potential of the drive waveform of the liquid crystal material is dispersed by employing a capacitor or an arrester connected to ground. Accordingly, discharge of the stored charge is facilitated, and occurrence of display defects is restrained.Type: ApplicationFiled: April 20, 2011Publication date: October 27, 2011Applicant: OPTREX CORPORATIONInventors: Shigeru Kojima, Yutaka Nakagawa, Toru Tsukamoto, Kenji Gondo
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Patent number: 8021711Abstract: In one mode of the present invention, there is provided an organic EL display device, which includes an organic light emitting layer provided between sets of electrodes, comprising color filters 22 and an overcoat layer 23 provided on a substrate 21; an inorganic solid layer 24 provided on the overcoat layer 23; a first set of transparent electrodes 25 provided on the inorganic solid layer 24; a light emitting layer 27 provided on the first set of electrodes 25; and a second set of electrodes 28 formed on the light emitting layer 27; wherein the inorganic solid layer 24 has routes for moisture passage formed in regions between adjacent electrodes of the first set so as to be uniform over an entire active area.Type: GrantFiled: July 18, 2007Date of Patent: September 20, 2011Assignee: OPTREX CorporationInventor: Kunio Masumo
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Publication number: 20110157086Abstract: An electrostatic capacity type touch panel having on one surface of a transparent substrate, a plurality of columns of column electrodes extending in a first direction and a plurality of columns of column electrodes extending in a second direction intersecting the first direction, such column electrodes extending in the first direction and such column electrodes extending in the second direction being eclectically disconnected from each other by an electrically insulating layer provided at least in a part of each intersection region of the column electrodes, and at least one of the two intersecting column electrodes being electrically connected by a bridge wire provided in the intersection region.Type: ApplicationFiled: March 10, 2011Publication date: June 30, 2011Applicant: OPTREX CorporationInventors: Masao Ozeki, Atsushi Iwasaki
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Publication number: 20110096062Abstract: Pixel electrodes in odd-numbered rows of a liquid crystal display panel are connected to source lines arranged on the left side of the pixel electrodes, respectively. Further, Pixel electrodes in even-numbered rows are connected to source lines arranged on the right side of the pixel electrodes, respectively. A potential setting section outputs potentials higher than a common electrode potential VCOM and potentials lower than VCOM from respective potential output terminals D1 to Dn alternately in order of arrangement of the potential output terminals. Further, potential output higher than VCOM and potential output lower than VCOM are switched per selection period. A switch section switches, per selection period, between output terminals Ok and Ok+1 to either of which an input terminal Ik is to be connected.Type: ApplicationFiled: October 13, 2010Publication date: April 28, 2011Applicant: OPTREX CorporationInventor: Kenji GONDO
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Publication number: 20100295819Abstract: A connection structure between electrodes includes a center electrode disposed as a transparent electrode on a transparent substrate; paired side electrodes disposed as transparent electrodes on the transparent substrate so as to place the center electrode therebetween; a bridge wire serving as a wire to connect between the paired side electrodes; and an electrically insulating film disposed between the center electrode and the bridge wire; wherein the bridge wire comprises a metal material; the electrically insulating film is disposed so as to be out of contact with the side electrodes at least within a certain range; and the bridge wire is disposed so as to be brought into direct contact with the transparent substrate in a gap region, the gap region being formed by disposing the electrically insulating film so as to bring out of contact with the side electrodes.Type: ApplicationFiled: May 18, 2010Publication date: November 25, 2010Applicant: OPTREX CorporationInventors: Masao OZEKI, Shinju OTANI, Shuji NISHIDA
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Publication number: 20100289769Abstract: Disclosed is a capacitive touch panel device having a sensing control unit that performs a scan sequence on individual sensor electrodes to measure sensor output values. The sensing control unit exercises control to measure sensor output values, with setup performed to avoid the detection of sensitivity slope, by executing a first scan sequence on all sensor electrodes. If the result of the first scan sequence indicates that multiple points are touched, the sensing control unit exercises control to measure sensor output values again, with setup performed to allow the detection of sensitivity slope, by executing a second scan sequence on the sensor electrodes related to a plurality of touch position candidate coordinates derived from multiple point touches, and identify and eliminate erroneously detected coordinates in accordance with the sensor output values measured upon the execution of the second scan sequence and with the tendency of sensitivity slope.Type: ApplicationFiled: April 29, 2010Publication date: November 18, 2010Applicant: OPTREX CorporationInventor: Kiyoshi WATANABE
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Patent number: 7525247Abstract: A first organic EL display device has cathode-common wires for aging, first and second connection resistances at cathode side for aging, and a cathode-lead wire for aging formed thereon, the cathode-lead wire for aging connecting between a first connection resistance at cathode side for aging on a side remote from the cathode-common wires for aging and the cathode-common wires for aging. The cathode-lead wire for aging is drawn out of the first connection resistance at cathode side for aging, passes outside cathode circuitous wiring in a second organic EL display device adjacent the first organic EL display device, passes through a space defined by the second organic EL display device, first and second connection resistances at cathode side for aging of the second organic EL display device, and a connection resistance at anode side for aging of the second organic EL display device, and is connected to the cathode-common wires for aging.Type: GrantFiled: May 27, 2005Date of Patent: April 28, 2009Assignee: OPTREX CorporationInventor: Naoki Kato
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Patent number: 7518601Abstract: An array substrate according to the invention includes an external terminal formed in the vicinity of an end portion of an insulating substrate so as to supply electric potential from the exterior to a driving circuit, a signal line monitoring terminal formed in parallel with the external terminal, a signal line branch terminal formed in such a way as to be connected to a signal line or to a signal line terminal, and an internal terminal associated with the signal line monitoring terminal, which is connected to the signal line monitoring terminal and connectable to a signal line branch terminal by an electrically conductive material and a bump of the driving circuit.Type: GrantFiled: January 28, 2005Date of Patent: April 14, 2009Assignees: Mitsubishi Denki Kabushiki Kaisha, Optrex CorporationInventors: Akio Nakayama, Shuichi Iida
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Patent number: 7432651Abstract: An organic EL panel 114 includes an anode 144, which is a transparent and conductive, a cathode 134, and an organic EL multilayer film 124 sandwiched between the anode 144 and the cathode 134, wherein the cathode 134 has an interface with the organic EL multilayer film 124, the interface comprising a black material. An organic EL display device includes such an organic EL element.Type: GrantFiled: December 9, 2005Date of Patent: October 7, 2008Assignee: OPTREX CorporationInventor: Nobuhiro Nakamura
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Patent number: 7427224Abstract: In an organic EL display, wherein anodes, cathode connection terminals, an insulating film, partition walls, organic compound layers and cathodes are provided on a substrate, the insulating film has apertural areas formed in positions serving as display pixels, and first structure is provided so as to surround connection positions between the cathodes and the cathode connection terminals in a region outside an endmost anode, the first structure avoids the formation of a resistor by preventing an organic material solution from flowing in the first structure when the organic material solution is applied.Type: GrantFiled: November 26, 2004Date of Patent: September 23, 2008Assignee: OPTREX CorporationInventors: Shinju Otani, Naoki Kato, Akihiko Yoshihara, Koretomo Harada
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Patent number: 7414363Abstract: An organic EL display device includes color filters 102, an overcoat layer 103 and an inorganic solid layer 104 disposed on a substrate 101; a first electrodes 105, an organic film 107 and a second electrodes 108 disposed on the inorganic solid layer 104; an insulating layer 106 disposed so as to cover edge portions of the first electrodes. The organic EL display device can improve production yield and restrain visual failure from being caused with the lapse of time by including a protection layer 109 so as to prevent the inorganic solid layer 104 from being damaged.Type: GrantFiled: December 23, 2005Date of Patent: August 19, 2008Assignee: OPTREX CorporationInventors: Mika Yokoyama, Kunio Masumo, Naoki Kato
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Patent number: 7394195Abstract: Scanning electrode circuitous wires are disposed in an area in the vicinity of a left side of a rectangular substrate; data electrode connecting wires, which serve to supply a signal to data electrodes from outside an organic EL display device, are disposed between the data electrodes and an upper side of the rectangular substrate; and scanning electrode connecting wires, which serve to supply a signal to scanning electrodes from outside the organic EL display device, are disposed between the scanning electrodes and a right side of the rectangular substrate.Type: GrantFiled: November 29, 2004Date of Patent: July 1, 2008Assignee: OPTREX CorporationInventor: Naoki Kato
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Patent number: 7336029Abstract: On a substrate 111, a color filter each comprising color layers 1A, 1B, 1C of three primary colors (red, green and blue) and a liquid-material-spreading preventive member 26 are formed, the liquid-material-spreading preventive member being disposed at the region 31 outside the anode wire formed at the outermost side. Then, a protective layer 4, anodes 101 and cathode supplementary wires 121 are formed on the substrate and an insulation film 122 is formed thereon. In the insulation film 122, openings 123 are formed at positions corresponding to display pixels. Partition walls 100 are formed on the insulation film 122 and a solution of organic material is applied onto the insulation film to form a thin organic compound layer. The spreading of the solution is prevented by the presence of the liquid-material-spreading preventive member 26. After thin organic compound layers are formed, cathode wires 105 are formed.Type: GrantFiled: July 30, 2004Date of Patent: February 26, 2008Assignee: Optrex CorporationInventor: Shinju Otani
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Patent number: 7336271Abstract: An image display system includes a screen comprising a pair of substrates with transparent electrodes provided thereon, and a liquid crystal layer sandwiched between the substrates, the liquid crystal layer containing a cured resin and being capable of exhibiting a light transmissive state and a light scattering state; and an image-projecting unit for projecting an image on the screen; wherein a frame comprising a combination of the light transmissive state and the light scattering state as a minimum repetitive satisfies a certain relationship.Type: GrantFiled: March 3, 2005Date of Patent: February 26, 2008Assignee: OPTREX CorporationInventors: Masao Ozeki, Masanobu Isshiki, Shinya Tahara, Toshihiko Suzuki
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Publication number: 20070259588Abstract: In one mode of the present invention, there is provided an organic EL display device, which includes an organic light emitting layer provided between sets of electrodes, comprising color filters 22 and an overcoat layer 23 provided on a substrate 21; an inorganic solid layer 24 provided on the overcoat layer 23; a first set of transparent electrodes 25 provided on the inorganic solid layer 24; a light emitting layer 27 provided on the first set of electrodes 25; and a second set of electrodes 28 formed on the light emitting layer 27; wherein the inorganic solid layer 24 has routes for moisture passage formed in regions between adjacent electrodes of the first set so as to be uniform over an entire active area.Type: ApplicationFiled: July 18, 2007Publication date: November 8, 2007Applicant: OPTREX CorporationInventor: Kunio MASUMO
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Publication number: 20070146562Abstract: On substrates 2a, 2b of a chiral nematic liquid crystal optical element 1, transparent electrodes 3a, 3b and electrical insulation layers 4a, 4b are formed, and further resin layers 5a, 5b having a pencil hardness of “B” or less are formed on the electrical insulation layers by a spin coating method so as to be in contact with a liquid crystal layer 7. When the surface hardness of the resin layers is to be measured, a glass substrate on which a resin layer is formed by screen-printing is prepared as a test piece, and the test piece is fitted to a pencil-scratching tester. The surface hardness is measured by scratching the test piece with two kinds of testing pencil selected from testing pencils having 17 grades of density.Type: ApplicationFiled: March 2, 2007Publication date: June 28, 2007Applicant: OPTREX CorporationInventors: Satoshi NIIYAMA, Noriko Suehiro
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Publication number: 20070111115Abstract: In order to fabricate a light reflective structure for a liquid crystal display, a photosensitive resin layer is formed with use of a thermosetting photosensitive resin, the photosensitive resin layer is exposed through a photomask having a particular pattern by a proximity method, the exposed photosensitive resin layer is developed to form an insolubilized resin layer, and the insolubilized resin layer is subjected to a heat treatment to have surface smoothness improved and to accelerate setting of the resin layer.Type: ApplicationFiled: January 5, 2007Publication date: May 17, 2007Applicant: OPTREX CorporationInventors: Ichiro Takasaki, Masao Ozeki, Haruki Mori, Kenichi Fukuoka, Takahiro Okuda
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Patent number: 7218293Abstract: When the ambient temperature of an organic electroluminescent display device is a low temperature, a capacitive charge driving method is performed to supply a constant current to a column electrode after performing capacitance charge and then apply a constant voltage to the column electrode to turn off a pixel; and when the ambient temperature is room temperature or a high temperature, an electric charge control driving method is performed to supply a constant current to the data electrode and then place the column electrode in a high impedance state. In the electric charge control driving method, a driving section is set in a selection period so as to be shorter than the selection period, and the amount of electric charges supplied to the pixel in the driving section is controlled depending on a required luminance.Type: GrantFiled: February 10, 2004Date of Patent: May 15, 2007Assignee: OPTREX CorporationInventor: Naoki Kato
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Patent number: 7202840Abstract: In a selection period for applying a selection voltage to a scanning strip, a high impedance section for placing a data strip in a high impedance state is provided after a constant current section for supplying a constant current to a data strip from a constant current circuit. An organic electroluminescent element to be used has a small voltage-dependency in luminous efficiencies. When performing grayshade display by PWM, a data strip is supplied with an amount of electric charges from the constant current circuit in the constant current section, the amount of electric charges being calculated by adding an amount of residual electric charges in pixels to an amount of electric charges corresponding to luminance required for respective gray scale levels, the amount of residual electric charges being found based on an estimated potential at the data strip at end of the high impedance section.Type: GrantFiled: December 1, 2003Date of Patent: April 10, 2007Assignee: OPTREX CorporationInventor: Naoki Kato
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Patent number: 7175947Abstract: In order to fabricate a light reflective structure for a liquid crystal display, a photosensitive resin layer is formed with use of a thermosetting photosensitive resin, the photosensitive resin layer is exposed through a photomask having a particular pattern by a proximity method, the exposed photosensitive resin layer is developed to form an insolubilized resin layer, and the insolubilized resin layer is subjected to a heat treatment to have surface smoothness improved and to accelerate setting of the resin layer.Type: GrantFiled: May 15, 2003Date of Patent: February 13, 2007Assignee: OPTREX CorporationInventors: Ichiro Takasaki, Masao Ozeki, Haruki Mori, Kenichi Fukuoka, Takahiro Okuda