Patents by Inventor Tetsuo Morita
Tetsuo Morita 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: 20190251903Abstract: Disclosed is a display device including: a driving transistor, a first switching transistor, and a pixel transistor each having a gate and a pair of terminals; a storage capacitor having a pair of terminals; and a light-emitting element having an input terminal and an output terminal. One terminal of the driving transistor is electrically connected to one terminal of the pixel transistor. The other terminal of the driving transistor is electrically connected to one terminal of the first switching transistor and the input terminal of the light-emitting element. The other terminal of the first switching transistor is electrically connected to the gate of the driving transistor and one terminal of the capacitor. The one terminal of the capacitor overlaps with an active region of the driving transistor.Type: ApplicationFiled: April 25, 2019Publication date: August 15, 2019Inventors: Tetsuo MORITA, Hiroyuki Kimura, Makoto Shibusawa, Hiroshi Tabatake, Yasuhiro Ogawa
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Publication number: 20190228706Abstract: A display device includes a drive transistor having a first electrode connected to a first node, a second electrode connected to a second node, and a third electrode connected to a third node, a first switch having one terminal connected to the first node, a second switch having one terminal connected to the first node, a third switch controlled by a first control signal and having one terminal connected to the second node, a fourth switch controlled by the first control signal together with the third switch, and having one terminal connected to a power supply line and another terminal connected to the third node, a capacitor element having one terminal connected to the first node and another terminal connected to the second node, and a light emitting element including a pixel electrode connected to the second node, and a first common electrode.Type: ApplicationFiled: January 15, 2019Publication date: July 25, 2019Inventors: Yutaka UMEDA, Hiroyuki KIMURA, Makoto SHIBUSAWA, Tetsuo MORITA
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Patent number: 10319297Abstract: Disclosed is a display device including: a driving transistor, a first switching transistor, and a pixel transistor each having a gate and a pair of terminals; a storage capacitor having a pair of terminals; and a light-emitting element having an input terminal and an output terminal. One terminal of the driving transistor is electrically connected to one terminal of the pixel transistor. The other terminal of the driving transistor is electrically connected to one terminal of the first switching transistor and the input terminal of the light-emitting element. The other terminal of the first switching transistor is electrically connected to the gate of the driving transistor and one terminal of the capacitor. The one terminal of the capacitor overlaps with an active region of the driving transistor.Type: GrantFiled: August 7, 2017Date of Patent: June 11, 2019Assignee: Japan Display Inc.Inventors: Tetsuo Morita, Hiroyuki Kimura, Makoto Shibusawa, Hiroshi Tabatake, Yasuhiro Ogawa
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Patent number: 10304386Abstract: A display device includes a switching element having a first input/output terminal electrically connected to a first signal line, a first wiring electrically connected to a second input/output terminal of the switching element, a transistor having a gate electrode connected to the first wiring, a second wiring electrically connected to a source or drain of the transistor, a pixel electrode connected to the second wiring, a first insulating layer which is arranged between the first wiring and the second wiring and is arranged between the first wiring and the pixel electrode, a second insulating layer between the first insulating layer and pixel electrode, and a conducting layer between the first insulating layer and the second insulating layer, the conducting layer including a region overlapping the pixel electrode. The conducting layer includes a dividing groove dividing the conducting layer into a plurality of regions at a region overlapping the pixel electrode.Type: GrantFiled: November 1, 2018Date of Patent: May 28, 2019Assignee: Japan Display Inc.Inventors: Yasuhiro Ogawa, Hiroshi Tabatake, Hiroyuki Kimura, Tetsuo Morita, Makoto Shibusawa
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Patent number: 10302060Abstract: An electric power control apparatus for a vehicle includes a first determination section determining an activation of a jump start, a second determination section determining a connection of an external power source having a higher voltage than a battery voltage of the vehicle, a third determination section determining whether the engine switches to an engine start completed state, a keep section keeping an electric power generation unit of the vehicle in an electric power generation deactivated state when determining that the engine switches to the engine start completed state, a fourth determination section determining a disconnection of the external power source, and an instruction section instructing an immediate activation of the electric power generation to the electric power generation unit when determining the disconnection of the external power source.Type: GrantFiled: January 19, 2016Date of Patent: May 28, 2019Assignee: DENSO CORPORATIONInventor: Tetsuo Morita
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Patent number: 10291157Abstract: A control apparatus includes a first determination section determining whether a power-supply voltage has decreased below a first threshold value, an interruption section interrupting a current flow to an inverter if the voltage has decreased below the first threshold value, a second determination section that determining whether the power-supply voltage has increased above a second threshold value, an interruption releasing section releasing the interruption based on the fact that the voltage has increased above the second threshold value, a count section counting the number of interruptions, a limiting section determining whether the decrease in the power-supply voltage is caused by a first factor of an electric rotating machine or a second factor, and limits the counting if the decrease in the power-supply voltage is caused by the second factor, and a third determination section determining whether the interruption is allowed to be released based on the number of interruptions.Type: GrantFiled: April 10, 2017Date of Patent: May 14, 2019Assignee: DENSO CORPORATIONInventors: Tetsuo Morita, Shinsuke Kawazu
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Publication number: 20190139995Abstract: Provided is a display device including: a capacitor having a first electrode, a first insulating film over the first electrode, and a second electrode over the first insulating film; and a first transistor over the capacitor. The first transistor includes the second electrode, a second insulating film over the second electrode, an oxide semiconductor film over the second insulating film, and a first source electrode and a first drain electrode over the oxide semiconductor film. The first source electrode and the first drain electrode are electrically connected to the oxide semiconductor film.Type: ApplicationFiled: December 28, 2018Publication date: May 9, 2019Inventors: Tetsuo MORITA, Hiroyuki KIMURA, Makoto SHIBUSAWA, Hiroshi TABATAKE, Yasuhiro OGAWA
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Patent number: 10283045Abstract: A display device including a light emitting element, a drive transistor connected to the light emitting element, a first switching element connected to the drive transistor and a main power supply line, a second switching element connected to the drive transistor and a reset power supply line, a third switching element connected to the drive transistor and a signal line, a fourth switching element connected to the third switching element and an initialization power supply line, and a capacitor element connected to the drive transistor and the third switching element, wherein two horizontal periods ON signal is supplied to a gate terminal of each of the second switching element, third switching element and fourth switching element respectively.Type: GrantFiled: December 2, 2016Date of Patent: May 7, 2019Assignee: Japan Display Inc.Inventors: Makoto Shibusawa, Hiroyuki Kimura, Tetsuo Morita
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Publication number: 20190073951Abstract: A display device includes a switching element having a first input/output terminal electrically connected to a first signal line, a first wiring electrically connected to a second input/output terminal of the switching element, a transistor having a gate electrode connected to the first wiring, a second wiring electrically connected to a source or drain of the transistor, a pixel electrode connected to the second wiring, a first insulating layer which is arranged between the first wiring and the second wiring and is arranged between the first wiring and the pixel electrode, a second insulating layer between the first insulating layer and pixel electrode, and a conducting layer between the first insulating layer and the second insulating layer, the conducting layer including a region overlapping the pixel electrode. The conducting layer includes a dividing groove dividing the conducting layer into a plurality of regions at a region overlapping the pixel electrode.Type: ApplicationFiled: November 1, 2018Publication date: March 7, 2019Inventors: Yasuhiro OGAWA, Hiroshi TABATAKE, Hiroyuki KIMURA, Tetsuo MORITA, Makoto SHIBUSAWA
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Patent number: 10204937Abstract: Provided is a display device including: a capacitor having a first electrode, a first insulating film over the first electrode, and a second electrode over the first insulating film; and a first transistor over the capacitor. The first transistor includes the second electrode, a second insulating film over the second electrode, an oxide semiconductor film over the second insulating film, and a first source electrode and a first drain electrode over the oxide semiconductor film. The first source electrode and the first drain electrode are electrically connected to the oxide semiconductor film.Type: GrantFiled: March 20, 2017Date of Patent: February 12, 2019Assignee: Japan Display Inc.Inventors: Tetsuo Morita, Hiroyuki Kimura, Makoto Shibusawa, Hiroshi Tabatake, Yasuhiro Ogawa
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Patent number: 10170040Abstract: A display device includes a switching element having a first input/output terminal electrically connected to a first signal line, a first wiring electrically connected to a second input/output terminal of the switching element, a transistor having a gate electrode connected to the first wiring, a second wiring electrically connected to a source or drain of the transistor, a pixel electrode connected to the second wiring, a first insulating layer which is arranged between the first wiring and the second wiring and is arranged between the first wiring and the pixel electrode, a second insulating layer between the first insulating layer and pixel electrode, and a conducting layer between the first insulating layer and the second insulating layer, the conducting layer including a region overlapping the pixel electrode. The conducting layer includes a dividing groove dividing the conducting layer into a plurality of regions at a region overlapping the pixel electrode.Type: GrantFiled: September 20, 2017Date of Patent: January 1, 2019Assignee: Japan Display Inc.Inventors: Yasuhiro Ogawa, Hiroshi Tabatake, Hiroyuki Kimura, Tetsuo Morita, Makoto Shibusawa
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Publication number: 20180374415Abstract: A display device includes a pixel region having a plurality of pixel and a driver circuit outside the pixel region. The pixels have a driving transistor and a switching transistor having a gate and a pair of terminals, a light-emitting element having an input terminal, and a storage capacitor having a pair of terminals. One terminal of the switching transistor is electrically connected to the gate of the driving transistor and one terminal of the storage capacitor. One terminal of the driving transistor is electrically connected to the other terminal of the storage capacitor and the input terminal. The driver circuit includes first and second transistors having a gate and a pair of terminal. The other terminal of the switching transistor is electrically connected to one terminal of the first transistor and one terminal of the second transistor. The second transistor has a channel region including an oxide semiconductor.Type: ApplicationFiled: June 27, 2017Publication date: December 27, 2018Inventors: Tetsuo MORITA, Hiroyuki KIMURA, Makoto SHIBUSAWA, Hiroshi TABATAKE, Yasuhiro OGAWA
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Publication number: 20180331167Abstract: Provided is a display device including a plurality of pixels at least one of which has a first transistor and a light-emitting element. The first transistor includes a gate electrode, a gate insulating film over the gate electrode, an oxide semiconductor film over the gate insulating film, and a first terminal and a second terminal electrically connected to the semiconductor film. The second terminal is electrically connected to the light-emitting element. A region in which the first terminal overlaps with the gate electrode can be smaller than a region in which the second terminal overlaps with the gate electrode.Type: ApplicationFiled: July 11, 2018Publication date: November 15, 2018Inventors: Tetsuo MORITA, Hiroyuki KIMURA, Makoto SHIBUSAWA, Hiroshi TABATAKE, Yasuhiro OGAWA
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Patent number: 10121413Abstract: 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: GrantFiled: September 18, 2015Date of Patent: November 6, 2018Assignee: Japan Display Inc.Inventors: Tetsuo Morita, Hiroyuki Kimura, Makoto Shibusawa, Hiroshi Nakayama, Hiroshi Tabatake, Yutaka Umeda
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Patent number: 10050094Abstract: Provided is a display device including a plurality of pixels at least one of which has a first transistor and a light-emitting element. The first transistor includes a gate electrode, a gate insulating film over the gate electrode, an oxide semiconductor film over the gate insulating film, and a first terminal and a second terminal electrically connected to the semiconductor film. The second terminal is electrically connected to the light-emitting element. A region in which the first terminal overlaps with the gate electrode can be smaller than a region in which the second terminal overlaps with the gate electrode.Type: GrantFiled: April 25, 2017Date of Patent: August 14, 2018Assignee: Japan Display Inc.Inventors: Tetsuo Morita, Hiroyuki Kimura, Makoto Shibusawa, Hiroshi Tabatake, Yasuhiro Ogawa
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Publication number: 20180090068Abstract: A display device includes a switching element having a first input/output terminal electrically connected to a first signal line, a first wiring electrically connected to a second input/output terminal of the switching element, a transistor having a gate electrode connected to the first wiring, a second wiring electrically connected to a source or drain of the transistor, a pixel electrode connected to the second wiring, a first insulating layer which is arranged between the first wiring and the second wiring and is arranged between the first wiring and the pixel electrode, a second insulating layer between the first insulating layer and pixel electrode, and a conducting layer between the first insulating layer and the second insulating layer, the conducting layer including a region overlapping the pixel electrode. The conducting layer includes a dividing groove dividing the conducting layer into a plurality of regions at a region overlapping the pixel electrode.Type: ApplicationFiled: September 20, 2017Publication date: March 29, 2018Inventors: Yasuhiro OGAWA, Hiroshi TABATAKE, Hiroyuki KIMURA, Tetsuo MORITA, Makoto SHIBUSAWA
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Publication number: 20180061317Abstract: Disclosed is a display device including: a driving transistor, a first switching transistor, and a pixel transistor each having a gate and a pair of terminals; a storage capacitor having a pair of terminals; and a light-emitting element having an input terminal and an output terminal. One terminal of the driving transistor is electrically connected to one terminal of the pixel transistor. The other terminal of the driving transistor is electrically connected to one terminal of the first switching transistor and the input terminal of the light-emitting element. The other terminal of the first switching transistor is electrically connected to the gate of the driving transistor and one terminal of the capacitor. The one terminal of the capacitor overlaps with an active region of the driving transistor.Type: ApplicationFiled: August 7, 2017Publication date: March 1, 2018Inventors: Tetsuo MORITA, Hiroyuki KIMURA, Makoto SHIBUSAWA, Hiroshi TABATAKE, Yasuhiro OGAWA
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Publication number: 20180053470Abstract: A driving method of a display device is provided. In a first period, threshold voltages are simultaneously compensated for all first transistors which are provided in a plurality of pixels arranged in a matrix form with n rows and m columns. In a second period, turning switches are turned off, and image data is written to the first transistors in the plurality of pixels row-by-row. In a third period, all light-emitting elements are made to simultaneously emit light. n and m are each an integer larger than 1. Each of the first transistors is configured so that the image data is input to a control terminal, a first terminal is electrically connected to a power-source line, and a second terminal is electrically connected to the light-emitting element. The power-source line is supplied with a high-level potential in the first and third periods and a low-level potential in the second period.Type: ApplicationFiled: June 9, 2017Publication date: February 22, 2018Inventors: Tetsuo MORITA, Hiroyuki KIMURA, Makoto SHIBUSAWA, Hiroshi TABATAKE, Yasuhiro OGAWA
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Publication number: 20180019291Abstract: Provided is a display device including a plurality of pixels at least one of which has a first transistor and a light-emitting element. The first transistor includes a gate electrode, a gate insulating film over the gate electrode, an oxide semiconductor film over the gate insulating film, and a first terminal and a second terminal electrically connected to the semiconductor film. The second terminal is electrically connected to the light-emitting element. A region in which the first terminal overlaps with the gate electrode can be smaller than a region in which the second terminal overlaps with the gate electrode.Type: ApplicationFiled: April 25, 2017Publication date: January 18, 2018Inventors: Tetsuo MORITA, Hiroyuki KIMURA, Makoto SHIBUSAWA, Hiroshi TABATAKE, Yasuhiro OGAWA
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Publication number: 20170294854Abstract: A control apparatus includes a first determination section determining whether a power-supply voltage has decreased below a first threshold value, an interruption section interrupting a current flow to an inverter if the voltage has decreased below the first threshold value, a second determination section that determining whether the power-supply voltage has increased above a second threshold value, an interruption releasing section releasing the interruption based on the fact that the voltage has increased above the second threshold value, a count section counting the number of interruptions, a limiting section determining whether the decrease in the power-supply voltage is caused by a first factor of an electric rotating machine or a second factor, and limits the counting if the decrease in the power-supply voltage is caused by the second factor, and a third determination section determining whether the interruption is allowed to be released based on the number of interruptions.Type: ApplicationFiled: April 10, 2017Publication date: October 12, 2017Applicant: DENSO CORPORATIONInventors: Tetsuo MORITA, Shinsuke KAWAZU