Patents by Inventor Toshiro Takahashi
Toshiro Takahashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10135032Abstract: A method for producing a light-emitting display device, the method including forming a film of a light-transmissive resin material on a substrate over which a reflective metal and a semi-transparent member can be disposed in at least one of a plurality of pixel regions corresponding to red, green and blue; curing part of the film of the light-transmissive resin material to form a light-transmissive resin layer, the part being in a region including the at least one pixel region; and developing the light-transmissive resin layer after the curing to form an optical path length-adjusting layer.Type: GrantFiled: February 4, 2010Date of Patent: November 20, 2018Assignee: UDC IRELAND LIMITEDInventors: Satoshi Aiba, Toshiro Takahashi
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Patent number: 8128447Abstract: A display device manufacturing method including arraying pixels 20 comprising plural sub-pixels with different light-emitting colors in two intersecting directions on a flexible substrate 12 by patterning plural sub-pixels 14, 16, 18 with different light-emitting colors onto the flexible substrate 12, wherein patterning of the sub-pixels is performed such that from the two directions of pixel array, the plural sub-pixels with different light-emitting colors are arrayed within the pixels in a rows along the direction X with the smaller substrate dimensional change ratio.Type: GrantFiled: March 24, 2008Date of Patent: March 6, 2012Assignee: Fujifilm CorporationInventor: Toshiro Takahashi
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Patent number: 8093805Abstract: In an organic electroluminescent display device comprising a wiring layer, an insulating layer, a first electrode, an organic electroluminescent layer, and a second electrode, wiring which conducts with a second electrode is arranged between light emitting pixels, and is provided either between an organic electroluminescent layer and the second electrodes, or on top of the second electrodes.Type: GrantFiled: May 26, 2006Date of Patent: January 10, 2012Assignee: Fujifilm CorporationInventors: Yoshiaki Sakamoto, Toshiro Takahashi
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Publication number: 20110317429Abstract: A method for producing a light-emitting display device, the method including forming a film of a light-transmissive resin material on a substrate over which a reflective metal and a semi-transparent member can be disposed in at least one of a plurality of pixel regions corresponding to red, green and blue; curing part of the film of the light-transmissive resin material to form a light-transmissive resin layer, the part being in a region including the at least one pixel region; and developing the light-transmissive resin layer after the curing to form an optical path length-adjusting layer.Type: ApplicationFiled: February 4, 2010Publication date: December 29, 2011Inventors: Satoshi Aiba, Toshiro Takahashi
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Patent number: 8022901Abstract: In a current control driver that drives an active matrix device, a write current can be set larger and unevenness in currents can be reduced between elements receiving the currents. In the current control driver having an element circuit for each of the elements comprising a converting unit for converting an applied current into a voltage, a retaining unit for retaining the voltage converted by the converting unit, and a driving unit that converts the voltage retained by the retaining unit into an output current and supplies the output current, the converting unit is shared between two or more of the element circuits and a switch located between the shared converting units connects two or more of the converting units to one of the elements during a current supply period for the element.Type: GrantFiled: May 31, 2007Date of Patent: September 20, 2011Assignee: Fujifilm CorporationInventors: Toshiro Takahashi, Takuya Yoshimi, Atsuo Ishizuka
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Patent number: 7978275Abstract: A method for producing a display comprising: forming a plurality of pixels arrayed on a flexible substrate and independently driven by TFTs, wherein the TFTs are formed in such a manner that the direction of the channel length L between the source and drain of each TFT is the direction of two orthogonal directions on the substrate in which the substrate has a smaller dimensional change ratio than the other direction. When the TFTs include a switching TFT and a driving TFT, the TFTs are formed in such a manner that the direction of the channel length between the source and drain of at least the driving TFT is the direction of the two orthogonal directions on the substrate in which the substrate has a smaller dimensional change ratio than the other direction.Type: GrantFiled: March 24, 2008Date of Patent: July 12, 2011Assignee: Fujifilm CorporationInventors: Toshiro Takahashi, Masaya Nakayama, Atsushi Tanaka
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Patent number: 7952267Abstract: A display by an active matrix drive in which plural pixels are controlled independently from one another, wherein each of the pixels includes at least two sub-pixels, the sub-pixels emit light of the same color as each other by application of current, and one sub-pixel of the sub-pixels has a lower light-emission efficiency per unit of current than that of the other sub-pixel. A display which has an improved gradation and is capable of multi-gradation reproduction is provided.Type: GrantFiled: March 6, 2008Date of Patent: May 31, 2011Assignee: Fujifilm CorporationInventors: Tasuku Satou, Toshiro Takahashi
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Patent number: 7935433Abstract: An object of the present invention is to enable suppression of a leak current of an organic EL element while improving a conductivity of the organic EL element and suppressing an operation voltage thereof. An organic EL element is used which comprises at least a luminescent layer, a hole transport layer adjacent to a positive-electrode side of the luminescent layer, and an electron injection transport layer adjacent to a negative-electrode side of the luminescent layer, wherein a hole injection layer is provided between the hole transport layer and the positive electrode, and the conductivity of the hole injection layer continuously changes along a thickness direction of the hole injection layer.Type: GrantFiled: December 25, 2003Date of Patent: May 3, 2011Assignee: Fujifilm CorporationInventors: Yuichiro Itai, Tasuku Satoh, Yoshiaki Sakamoto, Toshiro Takahashi, Masaru Kinoshita
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Patent number: 7928537Abstract: A functional device having, on a substrate, a pair of electrodes, a functional layer which is sandwiched between the electrodes and has an output that varies in accordance with an applied electric current, and a terminal arranged to apply an electric current to at least one of the electrodes, wherein an insulator is arranged between the electrodes and the density of the insulator decreases as the distance from the terminal increases, or wherein at least one of the electrodes has a notch section, and the ratio of the area of the notch section to the area of the electrode decreases as the distance from the terminal increases. This is an improved functional device which is excellent in production suitability and gives a uniform in-plane output, and can be rendered, in particular, an organic electroluminescence device.Type: GrantFiled: March 28, 2007Date of Patent: April 19, 2011Assignee: Fujifilm CorporationInventors: Toshiro Takahashi, Kazuo Hakamata
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Patent number: 7855369Abstract: A radiation imaging element that includes radiation sensors disposed in a matrix so as to output signal charges corresponding to radiation transmitted through a subject, and TFTs for readout of signals from the radiation sensors, wherein the TFT has at least a gate electrode, a gate insulating layer, an active layer, a source electrode and a drain electrode, the active layer has at least a first region and a second region which has an electric conductivity larger than an electric conductivity of the first region, the second region is in contact with the gate insulating layer, and the first region is disposed so as to be electrically connected between the second region and at least one of the source electrode or the drain electrode. A radiation imaging element that effectively suppresses noise and also achieves a high quality image is provided.Type: GrantFiled: November 20, 2008Date of Patent: December 21, 2010Assignee: FUJIFILM CorporationInventor: Toshiro Takahashi
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Patent number: 7750557Abstract: An organic electroluminescent display device comprising: a substrate; a reflective layer provided on the substrate and reflecting light; an insulating layer provided on the reflective layer and transmitting light; a lower electrode provided on the insulating layer; an organic electroluminescent layer provided on the lower electrode; and an upper electrode provided on the organic electroluminescent layer and electrically connected to the reflective layer.Type: GrantFiled: March 27, 2006Date of Patent: July 6, 2010Assignee: Fujifilm CorporationInventor: Toshiro Takahashi
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Publication number: 20100060176Abstract: A display apparatus, including an active matrix substrate with an array of multiple pixel circuits, each having a light emitting element, a drive transistor connected to the light emitting element to apply a drive current to the light emitting element, a capacitor element connected between a gate terminal and the source terminal of the drive transistor, and a selection transistor connected between the gate terminal of the drive transistor and a data line through which a predetermined data signal flows, in which the drive transistor is an n-type thin film transistor having a current characteristic in which a drive current at a gate-source voltage Vgs=0V corresponds to an average drive current Idavr.Type: ApplicationFiled: September 8, 2009Publication date: March 11, 2010Applicant: FUJIFILM CORPORATIONInventors: Toshiro Takahashi, Yasuhiro Seto
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Patent number: 7562994Abstract: A lighting apparatus and a display apparatus therewith are disclosed. The lighting apparatus includes a first light-transmitting electrode layer, a second light-transmitting electrode layer, and a luminous layer that is sandwiched by the first and the second light-transmitting electrode layers. At least one of the first and the second light-transmitting electrode layers includes at least a first conductive member and a second conductive member. Layout patterns of the first and the second conductive members are different from each other.Type: GrantFiled: June 21, 2005Date of Patent: July 21, 2009Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshiaki Sakamoto, Toshiro Takahashi, Masaya Nakayama
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Publication number: 20090134336Abstract: A radiation imaging element that includes radiation sensors disposed in a matrix so as to output signal charges corresponding to radiation transmitted through a subject, and TFTs for readout of signals from the radiation sensors, wherein the TFT has at least a gate electrode, a gate insulating layer, an active layer, a source electrode and a drain electrode, the active layer has at least a first region and a second region which has an electric conductivity larger than an electric conductivity of the first region, the second region is in contact with the gate insulating layer, and the first region is disposed so as to be electrically connected between the second region and at least one of the source electrode or the drain electrode. A radiation imaging element that effectively suppresses noise and also achieves a high quality image is provided.Type: ApplicationFiled: November 20, 2008Publication date: May 28, 2009Applicant: FUJIFILM CORPORATIONInventor: Toshiro Takahashi
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Publication number: 20080272989Abstract: The light emission panel display device according to the present invention has a scan drive circuit (30) driving a selected scan line to a selected voltage and unselected scan lines to a non-selected voltage higher than the selected voltage in each scanning period and (3) a data drive circuit (20) supplying light-emitting drive current to the data lines respectively in the periods of light emission corresponding to display gradation. The data drive circuit (20) starts supply of the light-emitting drive current to the data lines respectively at the emission-initiation timing corresponding to the emission period in the scanning period, and terminates supply of the light-emitting drive current to the multiple data lines at the same emission-termination timing.Type: ApplicationFiled: March 30, 2004Publication date: November 6, 2008Applicant: FUJI PHOTO FILM CO.,Inventors: Toshiro Takahashi, Atsuo Ishizuka
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Publication number: 20080239185Abstract: A method for producing a display comprising: forming a plurality of pixels arrayed on a flexible substrate and independently driven by TFTs, wherein the TFTs are formed in such a manner that the direction of the channel length L between the source and drain of each TFT is the direction of two orthogonal directions on the substrate in which the substrate has a smaller dimensional change ratio than the other direction. When the TFTs include a switching TFT and a driving TFT, the TFTs are formed in such a manner that the direction of the channel length between the source and drain of at least the driving TFT is the direction of the two orthogonal directions on the substrate in which the substrate has a smaller dimensional change ratio than the other direction.Type: ApplicationFiled: March 24, 2008Publication date: October 2, 2008Inventors: Toshiro TAKAHASHI, Masaya Nakayama, Atsushi Tanaka
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Publication number: 20080238306Abstract: A display device manufacturing method including arraying pixels 20 comprising plural sub-pixels with different light-emitting colors in two intersecting directions on a flexible substrate 12 by patterning plural sub-pixels 14, 16, 18 with different light-emitting colors onto the flexible substrate 12, wherein patterning of the sub-pixels is performed such that from the two directions of pixel array, the plural sub-pixels with different light-emitting colors are arrayed within the pixels in a rows along the direction X with the smaller substrate dimensional change ratio.Type: ApplicationFiled: March 24, 2008Publication date: October 2, 2008Inventor: Toshiro TAKAHASHI
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Publication number: 20080242181Abstract: A display device manufacturing method comprising: forming pixels 20 such that the pixels are disposed in an array in two intersecting directions on a flexible substrate 10; and forming terminals 14,18 for connecting the respective pixels that arrayed in the two intersecting directions on the flexible substrate with respective external lines, the terminals being formed so as to be in row(s) along the direction X with the smaller dimensional change ratio of the substrate, from the two directions on the flexible substrate.Type: ApplicationFiled: March 24, 2008Publication date: October 2, 2008Inventor: Toshiro TAKAHASHI
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Publication number: 20080224604Abstract: A display by an active matrix drive in which a plurality of pixels are independently controlled, wherein each pixel includes at least two sub-pixels that emit light having the same color as each other by application of current to the sub-pixels, and at least one of the sub-pixels is provided with an optical filter at a light extraction side of the sub-pixel. A display which is capable of multi-gradation reproduction is provided.Type: ApplicationFiled: March 6, 2008Publication date: September 18, 2008Inventors: Tasuku Satou, Toshiro Takahashi
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Publication number: 20080225206Abstract: A display by an active matrix drive in which plural pixels are controlled independently from one another, wherein each of the pixels includes at least two sub-pixels, the sub-pixels emit light of the same color as each other by application of current, and one sub-pixel of the sub-pixels has a lower light-emission efficiency per unit of current than that of the other sub-pixel. A display which has an improved gradation and is capable of multi-gradation reproduction is provided.Type: ApplicationFiled: March 6, 2008Publication date: September 18, 2008Inventors: Tasuku Satou, Toshiro Takahashi