Patents by Inventor Yoshiharu Hirakata

Yoshiharu Hirakata 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).

  • Patent number: 10514137
    Abstract: An object of this invention is to provide a highly portable light-emitting device or a highly browsable light-emitting device. The light-emitting device includes a joint portion, and a plurality of light-emitting units apart from each other with the joint portion positioned therebetween. The joint portion and the light-emitting units are flexible. The joint portion can be bent to a curvature radius smaller than a curvature radius to which the light-emitting unit can be bent. The light-emitting unit is supplied with a signal through a side not adjacent to the joint portion or is supplied with a signal by wireless communication.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: December 24, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoya Aoyama, Yasuhiro Jinbo, Yoshiharu Hirakata, Shunpei Yamazaki
  • Patent number: 10516008
    Abstract: A novel display panel that can be used as a reflective display panel in an environment with strong external light and as a self-luminous display panel in a dim environment, for example and that has low power consumption and is highly convenient or reliable is provided. The display panel includes a pixel and a substrate that supports the pixel. The pixel includes a first display element (e.g., a reflective liquid crystal element) that includes a reflective film having an opening as a first conductive film and a second display element (e.g., an organic EL element) that emits light to the opening.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: December 24, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Tetsuji Ishitani, Kenichi Okazaki, Hajime Kimura
  • Patent number: 10516007
    Abstract: The thickness of a display device including a touch sensor is reduced. Alternatively, the thickness of a display device having high display quality is reduced. Alternatively, a method for manufacturing a display device with high mass productivity is provided. Alternatively, a display device having high reliability is provided. Stacked substrates in each of which a sufficiently thin substrate and a relatively thick support substrate are stacked are used as substrates. One surface of the thin substrate of one of the stacked substrates is provided with a layer including a touch sensor, and one surface of the thin substrate of the other stacked substrate is provided with a layer including a display element. After the two stacked substrates are attached to each other so that the touch sensor and the display element face each other, the support substrate and the thin substrate of each stacked substrate are separated from each other.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: December 24, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Kensuke Yoshizumi
  • Publication number: 20190378237
    Abstract: A novel human interface with excellent operability is provided. A novel data processing device with excellent operability is provided. A novel data processing device, a novel display device, or the like is provided. An input and output device is supplied with image data and supplies sensing data, and an arithmetic device supplies the image data and is supplied with the sensing data. The input and output device includes a plurality of display portions that display display data and a sensing portion that senses an object obscuring one of the display portions, and includes one region provided with the one of the display portions and the sensing portion, another region provided with the other display portions, and a curved portion between the one region and the other region. The arithmetic device includes an arithmetic portion and a memory portion that stores a program to be executed by the arithmetic portion.
    Type: Application
    Filed: June 24, 2019
    Publication date: December 12, 2019
    Inventors: Yoshiharu HIRAKATA, Shunpei YAMAZAKI
  • Publication number: 20190348448
    Abstract: A display device in which a peripheral circuit portion has high operation stability is provided. The display device includes a first substrate and a second substrate. A first insulating layer is provided over a first surface of the first substrate. A second insulating layer is provided over a first surface of the second substrate. The first surface of the first substrate and the first surface of the second substrate face each other. An adhesive layer is provided between the first insulating layer and the second insulating layer. A protective film in contact with the first substrate, the first insulating layer, the adhesive layer, the second insulating layer, and the second substrate is formed in the vicinity of a peripheral portion of the first substrate and the second substrate.
    Type: Application
    Filed: July 25, 2019
    Publication date: November 14, 2019
    Inventors: Shunpei YAMAZAKI, Yoshiharu HIRAKATA, Takashi HAMADA, Kohei YOKOYAMA, Yasuhiro JINBO, Tetsuji ISHITANI, Daisuke KUBOTA
  • Patent number: 10474186
    Abstract: A display device includes a display panel mounted on a curved surface, and driver circuits including circuit elements which are mounted on a plurality of plane surfaces provided on the back of the curved surface in a stepwise shape along the curved surface.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: November 12, 2019
    Assignee: Semiconductor Energy Labortory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshiharu Hirakata
  • Publication number: 20190341568
    Abstract: An object is to provide a light-emitting element which uses a plurality of kinds of light-emitting dopants and has high emission efficiency. In one embodiment of the present invention, a light-emitting device, a light-emitting module, a light-emitting display device, an electronic device, and a lighting device each having reduced power consumption by using the above light-emitting element are provided. Attention is paid to Førster mechanism, which is one of mechanisms of intermolecular energy transfer. Efficient energy transfer by Førster mechanism is achieved by making an emission wavelength of a molecule which donates energy overlap with a local maximum peak on the longest wavelength side of a graph obtained by multiplying an absorption spectrum of a molecule which receives energy by a wavelength raised to the fourth power.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Satoshi Seo, Yoshiharu Hirakata, Takahiro Ishisone
  • Patent number: 10448531
    Abstract: A novel foldable and highly portable display device is provided. Further, a novel display device capable of displaying information or the like on a seamless large screen is provided. The display device includes a flexible display panel, a first housing provided with a storage portion that includes a space in which pulled one end of the display panel is stored, a folding mechanism connected to the first housing, and a second housing connected to the folding mechanism. The other end of the display panel is connected to the second housing so that the display panel can be drawn in accordance with an opening operation of the folding mechanism and stored in accordance with a closing operation of the folding mechanism.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: October 15, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Akihiro Chida, Hisao Ikeda, Yoshiharu Hirakata
  • Patent number: 10442172
    Abstract: A processing apparatus of a stack is provided. The stack includes two substrates attached to each other with a gap provided between their end portions. The processing apparatus includes a fixing mechanism that fixes part of the stack, a plurality of adsorption jigs that fix an outer peripheral edge of one of the substrates of the stack, and a wedge-shaped jig that is inserted into a corner of the stack. The plurality of adsorption jigs include a mechanism that allows the adsorption jigs to move separately in a vertical direction and a horizontal direction. The processing apparatus further includes a sensor sensing a position of the gap between the end portion in the stack. A tip of the wedge-shaped jig moves along a chamfer formed on an end surface of the stack. The wedge-shaped jig is inserted into the gap between the end portions in the stack.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: October 15, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kayo Kumakura, Tomoya Aoyama, Akihiro Chida, Kohei Yokoyama, Masakatsu Ohno, Satoru Idojiri, Hisao Ikeda, Hiroki Adachi, Yoshiharu Hirakata, Shingo Eguchi, Yasuhiro Jinbo
  • Patent number: 10437283
    Abstract: A display device includes a display panel mounted on a curved surface, and driver circuits including circuit elements which are mounted on a plurality of plane surfaces provided on the back of the curved surface in a stepwise shape along the curved surface.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: October 8, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshiharu Hirakata
  • Publication number: 20190295480
    Abstract: To provide a liquid crystal display device which can perform image display in both modes: a reflective mode where external light is used as an illumination light source; and a transmissive mode where a backlight is used. In one pixel, a region where incident light through a liquid crystal layer is reflected to perform display (reflective region) and a region through which light from the backlight passes to perform display (transmissive region) are provided, and image display can be performed in both modes: the reflective mode where external light is used as an illumination light source; and the transmissive mode where the backlight is used as an illumination light source. In addition, two transistors connected to respective pixel electrode layers are provided in one pixel, and the two transistors are separately operated, whereby display of the reflective region and display of the transmissive region can be controlled independently.
    Type: Application
    Filed: June 10, 2019
    Publication date: September 26, 2019
    Inventors: Shunpei YAMAZAKI, Jun KOYAMA, Yoshiharu HIRAKATA
  • Publication number: 20190295478
    Abstract: A novel information processing device that is highly convenient or reliable is provided. The inventor has thought of a structure including an input portion configured to supply the positional information of a pointer, an arithmetic device configured to determine a first region based on the positional information of a pointer and generate the image information so that the luminance of an image displayed in the first region is increased, and a display portion for displaying the image information.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 26, 2019
    Inventor: Yoshiharu HIRAKATA
  • Publication number: 20190296258
    Abstract: To provide a method for manufacturing a lightweight light-emitting device having a light-emitting region on a curved surface. The light-emitting region is provided on a curved surface in such a manner that a light-emitting element is formed on a flexible substrate supported in a plate-like shape and the flexible substrate deforms or returns.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu Hirakata, Shunpei Yamazaki
  • Patent number: 10401662
    Abstract: To provide a highly reliable liquid crystal display device including flexible substrates and a crystalline oxide semiconductor film for a backplane. The device includes a flexible first substrate, a flexible second substrate facing the first substrate, and a liquid crystal layer sealed between the substrates with a sealing member. The first substrate is provided with a layer including a transistor, an organic resin film over the transistor, a pixel electrode and a common electrode over the organic resin film, which partly overlap with each other with an insulating film provided therebetween, and an alignment film thereover. The transistor includes a crystalline oxide semiconductor film as a semiconductor layer where a channel is formed. Drying treatment is performed on the layer before the liquid crystal layer is sealed between the substrates, and steps from the drying treatment to sealing of the liquid crystal layer are performed without exposure to the air.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: September 3, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Daisuke Kubota, Akio Yamashita
  • Patent number: 10367014
    Abstract: A display device in which a peripheral circuit portion has high operation stability is provided. The display device includes a first substrate and a second substrate. A first insulating layer is provided over a first surface of the first substrate. A second insulating layer is provided over a first surface of the second substrate. The first surface of the first substrate and the first surface of the second substrate face each other. An adhesive layer is provided between the first insulating layer and the second insulating layer. A protective film in contact with the first substrate, the first insulating layer, the adhesive layer, the second insulating layer, and the second substrate is formed in the vicinity of a peripheral portion of the first substrate and the second substrate.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: July 30, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Takashi Hamada, Kohei Yokoyama, Yasuhiro Jinbo, Tetsuji Ishitani, Daisuke Kubota
  • Patent number: 10365514
    Abstract: An active matrix liquid crystal display device including a counter substrate and an element substrate firmly attached with each other with a sealant, and a liquid crystal layer between the counter substrate and the element substrate is provided. The counter substrate is provided with at least a resin layer. An outer end portion of the resin layer is not exposed to the outside atmosphere. The resin layer and the sealant at least partly overlap with each other when seen from a cross section of the liquid crystal display device. A moisture impermeable layer is formed between the resin layer and the sealant.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: July 30, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daisuke Kubota, Yoshiharu Hirakata, Masahiko Hayakawa
  • Publication number: 20190227600
    Abstract: 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: Application
    Filed: March 28, 2019
    Publication date: July 25, 2019
    Inventors: Yoshiharu HIRAKATA, Hiroyuki MIYAKE, Seiko INOUE, Shunpei YAMAZAKI
  • Patent number: 10361390
    Abstract: An object is to provide a light-emitting element which uses a plurality of kinds of light-emitting dopants and has high emission efficiency. In one embodiment of the present invention, a light-emitting device, a light-emitting module, a light-emitting display device, an electronic device, and a lighting device each having reduced power consumption by using the above light-emitting element are provided. Attention is paid to Förster mechanism, which is one of mechanisms of intermolecular energy transfer. Efficient energy transfer by Förster mechanism is achieved by making an emission wavelength of a molecule which donates energy overlap with a local maximum peak on the longest wavelength side of a graph obtained by multiplying an absorption spectrum of a molecule which receives energy by a wavelength raised to the fourth power.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: July 23, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Satoshi Seo, Yoshiharu Hirakata, Takahiro Ishisone
  • Publication number: 20190223301
    Abstract: A light-emitting device can be folded in such a manner that a flexible light-emitting panel is supported by a plurality of housings which are provided spaced from each other and the light-emitting panel is bent so that surfaces of adjacent housings are in contact with each other. Furthermore, in the light-emitting device, in which part or the whole of the housings have magnetism, the two adjacent housings can be fixed to each other by a magnetic force when the light-emitting device is used in a folded state.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Inventors: Yoshiharu HIRAKATA, Yasuhiro JINBO, Shunpei YAMAZAKI
  • Publication number: 20190221170
    Abstract: An object is to provide a liquid crystal display device which can recognize image display even when the liquid crystal display device is used in a dim environment. In one pixel, a pixel electrode including both of a region where incident light through a liquid crystal layer is reflected and a transmissive region is provided, and image display can be performed in both modes: the reflective mode where external light is used as an illumination light source; and the transmissive mode where the backlight is used as an illumination light source. When there is external light with insufficient brightness, that is, in a dim environment, the backlight emits weak light and an image is displayed in the reflective mode, whereby image display can be performed.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: Shunpei YAMAZAKI, Jun KOYAMA, Yoshiharu HIRAKATA