Patents by Inventor Yutaka Umeda
Yutaka Umeda 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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Publication number: 20170097711Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.Type: ApplicationFiled: December 14, 2016Publication date: April 6, 2017Applicant: JAPAN DISPLAY INC.Inventors: Yoshiro Aoki, Takashi Nakamura, Masahiro Tada, Hirotaka Hayashi, Makoto Shibusawa, Yutaka Umeda, Miyuki Ishikawa
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Publication number: 20170097712Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.Type: ApplicationFiled: December 14, 2016Publication date: April 6, 2017Applicant: JAPAN DISPLAY INC.Inventors: Yoshiro AOKI, Takashi Nakamura, Masahiro Tada, Hirotaka Hayashi, Makoto Shibusawa, Yutaka Umeda, Miyuki Ishikawa
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Patent number: 9547403Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.Type: GrantFiled: June 13, 2016Date of Patent: January 17, 2017Assignee: JAPAN DISPLAY INC.Inventors: Yoshiro Aoki, Takashi Nakamura, Masahiro Tada, Hirotaka Hayashi, Makoto Shibusawa, Yutaka Umeda, Miyuki Ishikawa
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Publication number: 20160291738Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.Type: ApplicationFiled: June 13, 2016Publication date: October 6, 2016Applicant: JAPAN DISPLAY INC.Inventors: Yoshiro AOKI, Takashi Nakamura, Masahiro Tada, Hirotaka Hayashi, Makoto Shibusawa, Yutaka Umeda, Miyuki Ishikawa
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Publication number: 20160232841Abstract: A method of driving a display device with a plurality of pixels including a video signal wire, a first power supply wire supplied with a first potential, a second power supply wire supplied with a second potential different to the first potential, a light emitting element arranged between the first power supply wire and the second power supply wire, a drive transistor controlling a value of a current supplied to the light emitting element, and a switch arranged between the video signal wire and the drive transistor, and inputting a signal of the video signal wire to a gate terminal of the drive transistor, wherein a minimum gradation level potential is supplied to the video signal wire after a video signal is written to the capacitor of an Nth row pixel until a video signal is written to the capacitor of an Mth (N<M) row pixel.Type: ApplicationFiled: February 4, 2016Publication date: August 11, 2016Inventors: Yutaka UMEDA, Duzen PENG, Ilin WU, Makoto SHIBUSAWA, Hiroyuki KIMURA
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Patent number: 9411478Abstract: According to one embodiment, a display device includes a display panel having a counter substrate, an array substrate and a liquid crystal layer held therebetween, a counter electrode provided on the counter substrate, a pixel electrode arranged on the array substrate in a matrix, a sensor circuit arranged between rows of the plurality of pixel electrodes and configured to read out intensity of capacitive coupling between the sensor circuit and a dielectric, and a counter electrode drive circuit configured to pulsatively drive a common voltage added to the counter electrode during a period of driving the sensor circuit, wherein the sensor circuit comprises a detection electrode configured to form capacitance between the sensor circuit and the dielectric and to form capacitance between the sensor circuit and the counter electrode, and wherein the counter electrode comprises an aperture including at least a portion opposed to the detection electrode.Type: GrantFiled: April 21, 2014Date of Patent: August 9, 2016Assignee: Japan Display Inc.Inventors: Miyuki Ishikawa, Masahiro Tada, Takashi Nakamura, Yutaka Umeda, Hirotaka Hayashi, Yoshiro Aoki, Takanori Tsunashima
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Patent number: 9383880Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.Type: GrantFiled: January 14, 2016Date of Patent: July 5, 2016Assignee: Japan Display Inc.Inventors: Yoshiro Aoki, Takashi Nakamura, Masahiro Tada, Hirotaka Hayashi, Makoto Shibusawa, Yutaka Umeda, Miyuki Ishikawa
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Publication number: 20160132159Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.Type: ApplicationFiled: January 14, 2016Publication date: May 12, 2016Applicant: JAPAN DISPLAY INC.Inventors: Yoshiro AOKI, Takashi NAKAMURA, Masahiro TADA, Hirotaka HAYASHI, Makoto SHIBUSAWA, Yutaka UMEDA, Miyuki ISHIKAWA
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Publication number: 20160104761Abstract: A display device includes a display region comprising a plurality of pixels, each pixel of the plurality of pixels comprises a light emitting element which includes a pixel electrode, a conductive layer below the pixel electrode and configured to receive a specified electric voltage, and a thin film transistor below the pixel electrode and the conductive layer, wherein the thin film transistor comprises a semiconductor layer which includes a channel region, a gate electrode which is overlapping the channel region, a first electrode electrically connected to the semiconductor layer and the pixel electrode, and a second electrode electrically connectable to a power supply line, wherein the conductive layer includes an overlapped region which overlaps with the channel region, and the first electrode extends so as to cover the gate electrode at the overlapped region.Type: ApplicationFiled: October 13, 2015Publication date: April 14, 2016Inventors: Hiroshi TABATAKE, Hiroyuki KIMURA, Makoto SHIBUSAWA, Hiroshi NAKAYAMA, Tetsuo MORITA, Yutaka UMEDA
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Publication number: 20160086543Abstract: A flash phenomenon of OLEDs at the time of power source ON of a display device is suppressed. The OLED emits light when reference potentials VSS and VDD are applied from power source lines to the OLED's cathode and anode respectively. While the anode can be connected to one of the power source line via a driving TFT and a lighting switch, a reset potential VRS can be applied to the anode via a reset switch and the driving TFT. The lighting switch is turned OFF and the reset switch and the driving TFT are turned ON so that VRS is applied to the anode, before starting the application of the reference potentials to the power source lines. Following this state, the application of the reference potentials to the power source lines starts, and thus a normal operation of allowing the OLED to emit light starts.Type: ApplicationFiled: September 18, 2015Publication date: March 24, 2016Inventors: Tetsuo MORITA, Hiroyuki KIMURA, Makoto SHIBUSAWA, Hiroshi NAKAYAMA, Hiroshi TABATAKE, Yutaka UMEDA
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Patent number: 9262030Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.Type: GrantFiled: October 3, 2014Date of Patent: February 16, 2016Assignee: Japan Display Inc.Inventors: Yoshiro Aoki, Takashi Nakamura, Masahiro Tada, Hirotaka Hayashi, Makoto Shibusawa, Yutaka Umeda, Miyuki Ishikawa
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Publication number: 20150097810Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.Type: ApplicationFiled: October 3, 2014Publication date: April 9, 2015Applicant: Japan Display Inc.Inventors: Yoshiro AOKI, Takashi NAKAMURA, Masahiro TADA, Hirotaka HAYASHI, Makoto SHIBUSAWA, Yutaka UMEDA, Miyuki ISHIKAWA
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Publication number: 20140333852Abstract: According to one embodiment, a display device includes a display panel having a counter substrate, an array substrate and a liquid crystal layer held therebetween, a counter electrode provided on the counter substrate, a pixel electrode arranged on the array substrate in a matrix, a sensor circuit arranged between rows of the plurality of pixel electrodes and configured to read out intensity of capacitive coupling between the sensor circuit and a dielectric, and a counter electrode drive circuit configured to pulsatively drive a common voltage added to the counter electrode during a period of driving the sensor circuit, wherein the sensor circuit comprises a detection electrode configured to form capacitance between the sensor circuit and the dielectric and to form capacitance between the sensor circuit and the counter electrode, and wherein the counter electrode comprises an aperture including at least a portion opposed to the detection electrode.Type: ApplicationFiled: April 21, 2014Publication date: November 13, 2014Applicant: Japan Display Inc.Inventors: Miyuki ISHIKAWA, Masahiro Tada, Takashi Nakamura, Yutaka Umeda, Hirotaka Hayashi, Yoshiro Aoki, Takanori Tsunashima
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Publication number: 20140225844Abstract: According to one embodiment, a touchpanel includes, a plurality of electrodes arranged in each of a first direction and a second direction on the touchpanel, a module configured to supply a signal for detecting a position of a conductor on the touchpanel to each of the electrodes, and configured to compute the position of the conductor based on a signal output from the electrode, a module configured to output a tactile signal to an electrode in a vicinity to the position of the conductor, a module configured to switch between a signal line from the touch detection module and a signal line from the tactile output module, and to connect the signal line to a signal line from each of the electrodes, and a control module configured to control operations of the modules.Type: ApplicationFiled: January 9, 2014Publication date: August 14, 2014Applicant: Japan Display Inc.Inventors: Masahiro TADA, Yutaka Umeda, Takashi Nakamura, Hirotaka Hayashi