Patents by Inventor Seiko Inoue
Seiko Inoue 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: 20200251054Abstract: A light-emitting device in which variation in luminance of pixels is suppressed. A light-emitting device includes at least a transistor, a first wiring, a second wiring, a first switch, a second switch, a third switch, a fourth switch, a capacitor, and a light-emitting element. The first wiring and a first electrode of the capacitor are electrically connected to each other through the first switch. A second electrode of the capacitor is connected to a first terminal of the transistor. The second wiring and a gate of the transistor are electrically connected to each other through the second switch. The first electrode of the capacitor and the gate of the transistor are electrically connected to each other through the third switch. The first terminal of the transistor and an anode of the light-emitting element are electrically connected to each other through the fourth switch.Type: ApplicationFiled: April 21, 2020Publication date: August 6, 2020Inventors: Seiko INOUE, Hiroyuki MIYAKE
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Patent number: 10629122Abstract: A light-emitting device in which variation in luminance of pixels is suppressed. A light-emitting device includes at least a transistor, a first wiring, a second wiring, a first switch, a second switch, a third switch, a fourth switch, a capacitor, and a light-emitting element. The first wiring and a first electrode of the capacitor are electrically connected to each other through the first switch. A second electrode of the capacitor is connected to a first terminal of the transistor. The second wiring and a gate of the transistor are electrically connected to each other through the second switch. The first electrode of the capacitor and the gate of the transistor are electrically connected to each other through the third switch. The first terminal of the transistor and an anode of the light-emitting element are electrically connected to each other through the fourth switch.Type: GrantFiled: June 4, 2018Date of Patent: April 21, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Seiko Inoue, Hiroyuki Miyake
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Publication number: 20190227600Abstract: A display device with low power consumption is provided. Furthermore, a display device in which an image is displayed in a region that can be used in a folded state is provided. The conceived display device includes a display portion that can be opened and folded, a sensing portion that senses a folded state of the display portion, and an image processing portion that generates, when the display portion is in the folded state, an image in which a black image is displayed in part of the display portion.Type: ApplicationFiled: March 28, 2019Publication date: July 25, 2019Inventors: Yoshiharu HIRAKATA, Hiroyuki MIYAKE, Seiko INOUE, Shunpei YAMAZAKI
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Publication number: 20190033919Abstract: A display device with low power consumption is provided. Furthermore, a display device in which an image is displayed in a region that can be used in a folded state is provided. The conceived display device includes a display portion that can be opened and folded, a sensing portion that senses a folded state of the display portion, and an image processing portion that generates, when the display portion is in the folded state, an image in which a black image is displayed in part of the display portion.Type: ApplicationFiled: May 22, 2018Publication date: January 31, 2019Inventors: Yoshiharu HIRAKATA, Hiroyuki MIYAKE, Seiko INOUE, Shunpei YAMAZAKI
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Publication number: 20180286309Abstract: A light-emitting device in which variation in luminance of pixels is suppressed. A light-emitting device includes at least a transistor, a first wiring, a second wiring, a first switch, a second switch, a third switch, a fourth switch, a capacitor, and a light-emitting element. The first wiring and a first electrode of the capacitor are electrically connected to each other through the first switch. A second electrode of the capacitor is connected to a first terminal of the transistor. The second wiring and a gate of the transistor are electrically connected to each other through the second switch. The first electrode of the capacitor and the gate of the transistor are electrically connected to each other through the third switch. The first terminal of the transistor and an anode of the light-emitting element are electrically connected to each other through the fourth switch.Type: ApplicationFiled: June 4, 2018Publication date: October 4, 2018Inventors: Seiko INOUE, Hiroyuki MIYAKE
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Patent number: 10008149Abstract: A light-emitting device in which variation in luminance of pixels is suppressed. A light-emitting device includes at least a transistor, a first wiring, a second wiring, a first switch, a second switch, a third switch, a fourth switch, a capacitor, and a light-emitting element. The first wiring and a first electrode of the capacitor are electrically connected to each other through the first switch. A second electrode of the capacitor is connected to a first terminal of the transistor. The second wiring and a gate of the transistor are electrically connected to each other through the second switch. The first electrode of the capacitor and the gate of the transistor are electrically connected to each other through the third switch. The first terminal of the transistor and an anode of the light-emitting element are electrically connected to each other through the fourth switch.Type: GrantFiled: July 12, 2012Date of Patent: June 26, 2018Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Seiko Inoue, Hiroyuki Miyake
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Patent number: 9899420Abstract: In a pixel including a selection transistor, a driver transistor, and a light-emitting element, as the driver transistor, a transistor is used in which a channel is formed in an oxide semiconductor film and its channel length is 0.5 ?m or greater and 4.5 ?m or less. The driver transistor includes a first gate electrode over an oxide semiconductor film and a second gate electrode below the oxide semiconductor film. The first gate electrode and the second gate electrode are electrically connected to each other and overlap with the oxide semiconductor film. Furthermore, in the selection transistor of a pixel, which does not need to have field-effect mobility as high as that of the driver transistor, a channel length is made longer than at least the channel length of the driver transistor.Type: GrantFiled: May 29, 2014Date of Patent: February 20, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hiroyuki Miyake, Seiko Inoue, Shinpei Matsuda, Daisuke Matsubayashi, Masahiko Hayakawa
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Patent number: 9817520Abstract: A novel transmissive imaging panel, a novel imaging panel with a display function, or a novel imaging device is provided. The imaging panel that includes a plurality of windows or pixels arranged in matrix, a photoelectric conversion element extending between the plurality of windows or pixels, and a sensor circuit supplied with a signal from the photoelectric conversion element has been devised.Type: GrantFiled: May 9, 2014Date of Patent: November 14, 2017Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Takayuki Ikeda, Seiko Inoue, Hiroyuki Miyake, Kouhei Toyotaka, Takashi Nakagawa
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Patent number: 9792844Abstract: A display device capable of high-quality stereoscopic display without decreasing resolution is provided. A pixel portion including a plurality of pixels arranged in matrix is divided into plural regions, lighting of backlight units each emitting light of different hues is controlled in each region, and the backlight units of the plural regions are turned off simultaneously at a regular interval so as to display black. The right-eye image and the left-eye image are alternately displayed with black display interposed therebetween, and light incident on the right eye of a viewer is blocked when a left-eye image is displayed, and light incident on the left eye of the viewer is blocked when a right-eye image is displayed. An image signal is written into a pixel in a black display period during which the backlight units are turned off.Type: GrantFiled: November 17, 2011Date of Patent: October 17, 2017Assignee: Seminconductor Energy Laboratory Co., Ltd.Inventors: Hiroyuki Miyake, Seiko Inoue
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Patent number: 9754971Abstract: A semiconductor device includes a dual-gate transistor including an oxide semiconductor film between a first gate electrode and a second gate electrode, a gate insulating film between the oxide semiconductor film and the second gate electrode, and a pair of electrodes in contact with the oxide semiconductor film. The semiconductor device further includes an insulating film over the gate insulating film, and a conductive film over the insulating film and connected to one of the pair of electrodes. The insulating film includes an opening in at least a region overlapping with the oxide semiconductor film in which the second gate electrode is provided in contact with the gate insulating film. The second gate electrode is formed using the same material as the conductive film connected to the one of the pair of electrodes.Type: GrantFiled: May 13, 2014Date of Patent: September 5, 2017Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hiroyuki Miyake, Seiko Inoue, Daisuke Matsubayashi
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Patent number: 9482919Abstract: Transistors each include a gate electrode, a gate insulating layer over the gate electrode, an oxide semiconductor layer over the gate insulating layer, and a source electrode and a drain electrode over the oxide semiconductor layer. A driver circuit portion includes first to third wirings formed in the same step as the gate electrode, fourth to sixth wirings formed in the same step as the source electrode and the drain electrode, a seventh wiring formed in the same step as a pixel electrode, a first region where the second wiring intersects with the fifth wiring, and a second region where the third wiring intersects with the sixth wiring. The first wiring is connected to the fourth wiring through the seventh wiring. A distance between the wirings in the second region is longer than that in the first region.Type: GrantFiled: February 20, 2014Date of Patent: November 1, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideaki Shishido, Hiroyuki Miyake, Seiko Inoue, Kouhei Toyotaka, Koji Kusunoki
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Patent number: 9449574Abstract: In a video voltage comparator circuit, an average of first video voltages applied to pixel electrodes of pixels in the second-half rows in a k-th frame period (k is a natural number) is compared with an average of second video voltages applied to pixel electrodes of pixels in the first-half rows in a (k+1)th frame period for each row. In an overdrive voltage switching circuit, when a difference obtained from the comparison in the video voltage comparator circuit is greater than or equal to a threshold value, the overdrive voltage in the (k+1)th frame period is switched to a first overdrive voltage, and when the difference obtained from the comparison in the video voltage comparator circuit is less than the threshold value, the overdrive voltage in the (k+1)th frame period is switched to a second overdrive voltage lower than the first overdrive voltage.Type: GrantFiled: October 9, 2013Date of Patent: September 20, 2016Assignee: Semiconductor Energy Laboratory Co., LTD.Inventors: Hiroyuki Miyake, Hideaki Shishido, Seiko Inoue
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Patent number: 9451246Abstract: A display device includes a display panel including a plurality of pixels, a shutter panel including a driver circuit, a liquid crystal, and light-transmitting electrodes provided in a striped manner, and a positional data detector configured to detect a positional data of a viewer. The shutter panel is provided over a display surface side of the display panel, a width of one of the light-transmitting electrodes in the shutter panel is smaller than that of one of the plurality of pixels, and the driver circuit in the shutter panel is configured to selectively output signals for forming a parallax barrier to the light-transmitting electrodes. The parallax barrier is capable of changing its shape in accordance with the detected positional data.Type: GrantFiled: July 10, 2012Date of Patent: September 20, 2016Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Jun Koyama, Hiroyuki Miyake, Hideaki Shishido, Seiko Inoue, Kouhei Toyotaka, Koji Kusunoki, Hikaru Harada, Makoto Kaneyasu
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Publication number: 20150310793Abstract: A novel input/output device which is highly convenient or reliable is provided. A method for driving an input/output device is provided. The present inventors have conceived a structure which includes an input/output circuit supplied with a selection signal, a control signal, a display signal including display data, and a sensing signal and capable of supplying a potential based on the sensing signal, a conversion circuit capable of supplying sensing data based on the sensing signal, a sensing element capable of supplying the sensing signal, and a display element supplied with a current.Type: ApplicationFiled: April 20, 2015Publication date: October 29, 2015Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Susumu Kawashima, Hiroyuki MIYAKE, Koji KUSUNOKI, Seiko INOUE
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Patent number: 9142593Abstract: To suppress a loss of data in a semiconductor device. To provide a display device including a capacitor storing data, a display element performing display in accordance with the data, and switching elements connected to electrodes of the capacitor. In the display device, the voltage is held between the electrodes of the capacitor by turning the switching elements off; thus, the data can be stored even when supplying the power supply is stopped.Type: GrantFiled: August 28, 2014Date of Patent: September 22, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shinya Okano, Shigeru Onoya, Seiko Inoue, Masaaki Hiroki
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Patent number: 9053675Abstract: To prevent malfunctions from occurring. A shift register, a selection circuit having a function of determining which a first pulse signal or a second pulse signal is output at the same potential level as a pulse signal input from the shift register, and a plurality of driving signal output circuits each having functions of generating and outputting a driving signal are provided. Each of the plurality of driving signal output circuits includes a latch unit, a buffer unit, and a switch unit for controlling rewriting of data stored in the latch unit.Type: GrantFiled: November 2, 2012Date of Patent: June 9, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hiroyuki Miyake, Seiko Inoue
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Publication number: 20150060896Abstract: To suppress a loss of data in a semiconductor device. To provide a display device including a capacitor storing data, a display element performing display in accordance with the data, and switching elements connected to electrodes of the capacitor. In the display device, the voltage is held between the electrodes of the capacitor by turning the switching elements off; thus, the data can be stored even when supplying the power supply is stopped.Type: ApplicationFiled: August 28, 2014Publication date: March 5, 2015Inventors: Shinya Okano, Shigeru Onoya, Seiko Inoue, Masaaki Hiroki
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Publication number: 20150035777Abstract: A display device with low power consumption is provided. Furthermore, a display device in which an image is displayed in a region that can be used in a folded state is provided. The conceived display device includes a display portion that can be opened and folded, a sensing portion that senses a folded state of the display portion, and an image processing portion that generates, when the display portion is in the folded state, an image in which a black image is displayed in part of the display portion.Type: ApplicationFiled: July 28, 2014Publication date: February 5, 2015Inventors: Yoshiharu HIRAKATA, Hiroyuki MIYAKE, Seiko INOUE, Shunpei YAMAZAKI
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Patent number: 8929128Abstract: A storage device in which held voltage is prevented from decreasing due to feedthrough in writing data to the storage device at high voltage is provided. The storage device includes a write circuit, a bit line, a word line, a transistor, and a capacitor. A gate of the transistor is electrically connected to the word line. One of a source and a drain of the transistor is electrically connected to the bit line. The other of the source and the drain of the transistor is electrically connected to one terminal of the capacitor. The other terminal of the capacitor is electrically connected to a ground. The write circuit includes an element holding write voltage and a circuit gradually decreasing voltage from the element holding write voltage. The write voltage is output from the write circuit to the word line.Type: GrantFiled: May 13, 2013Date of Patent: January 6, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yutaka Shionoiri, Seiko Inoue
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Patent number: 8922464Abstract: In a circuit in FIG. 1, pluses are input to a first gate signal line and a second gate signal line in accordance with a timing chart in FIG. 3, so that transistors in the circuit are turned on/off. As a result, a potential difference between a third node and a second node does not depend on the threshold voltage of a fourth transistor and is determined only by a potential of a data line and a potential of a second wiring. Therefore, an intended current can flow in a display element.Type: GrantFiled: May 7, 2012Date of Patent: December 30, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Seiko Inoue, Hiroyuki Miyake, Jun Koyama