Patents by Inventor Akihiro Iwatsu

Akihiro Iwatsu 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).

  • Publication number: 20240135896
    Abstract: A circuit includes a first transistor, a second transistor, a third transistor and a fourth transistor. The first transistor has a first end and a second end. The second transistor has a first end and a second end, wherein the first end of the second transistor is coupled to the first end of the first transistor. The third transistor has a first end and a second end, wherein the second end of the third transistor is coupled to the second end of the second transistor. The fourth transistor has a first end coupled to the second end of the first transistor. The fourth transistor has a bottom gate and an oxide semiconductor layer, and the second transistor has a top gate and a silicon semiconductor layer.
    Type: Application
    Filed: January 4, 2024
    Publication date: April 25, 2024
    Inventors: Sheng-Feng HUANG, Akihiro IWATSU, Cheng-Min WU, Kuanfeng LEE
  • Publication number: 20240087517
    Abstract: An electronic device including a plurality of sensing pixel circuits is provided. At least one of the sensing pixel circuits includes a photoelectric sensing element, a first transistor device, a second transistor device, a third transistor device and a fourth transistor device. The fourth transistor device includes a first end, a second end and a control end. The first end of the fourth transistor device is coupled to a first end of the first transistor device. The second end of the fourth transistor device is coupled to a bias voltage. The control end of the fourth transistor device is coupled to a scan line. The fourth transistor device serves as a current sink in a pre-trap period.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 14, 2024
    Applicant: Innolux Corporation
    Inventors: Yuko Furui, Akihiro Iwatsu, Shuji Hagino
  • Patent number: 11900893
    Abstract: A driver circuit which includes an output circuit and a control circuit coupled to the output circuit. The driver circuit includes a pull-up transistor with a silicon semiconductor layer. The control circuit includes a first transistor with an oxide semiconductor layer.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: February 13, 2024
    Assignee: INNOLUX CORPORATION
    Inventors: Sheng-Feng Huang, Akihiro Iwatsu, Cheng-Min Wu, Kuanfeng Lee
  • Patent number: 11656124
    Abstract: A sensing device provided herein includes a first pixel circuit, a readout circuit, a first switch, a second switch, and a first capacitor. The readout circuit is electrically connected to the first pixel circuit. The first switch is electrically connected between the first pixel circuit and the readout circuit. The second switch is electrically connected between the first switch and the readout circuit. The first capacitor includes a first electrode electrically connected to the first switch and the second switch.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: May 23, 2023
    Assignee: INNOLUX CORPORATION
    Inventors: Yuko Furui, Akihiro Iwatsu, Shuji Hagino
  • Patent number: 11523077
    Abstract: An electronic device and a control method are provided. The electronic device includes a sensing pixel. The sensing pixel includes a photosensitive element, a first transistor, a second transistor and a third transistor. The first transistor is coupled to the photosensitive element and for receiving a reset signal. The second transistor is coupled to the photosensitive element. The third transistor is coupled to the second transistor and for receiving a scan signal. During a reset period, a reset signal waveform of the reset signal and a first scan signal waveform of the scan signal are at least partially overlapped.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: December 6, 2022
    Assignee: Innolux Corporation
    Inventors: Yuko Furui, Akihiro Iwatsu, Shuji Hagino
  • Publication number: 20220201228
    Abstract: An electronic device and a control method are provided. The electronic device includes a sensing pixel. The sensing pixel includes a photosensitive element, a first transistor, a second transistor and a third transistor. The first transistor is coupled to the photosensitive element and for receiving a reset signal. The second transistor is coupled to the photosensitive element. The third transistor is coupled to the second transistor and for receiving a scan signal. During a reset period, a reset signal waveform of the reset signal and a first scan signal waveform of the scan signal are at least partially overlapped.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 23, 2022
    Applicant: Innolux Corporation
    Inventors: Yuko Furui, Akihiro Iwatsu, Shuji Hagino
  • Patent number: 11363229
    Abstract: An electronic device is provided. The electronic device includes: a substrate, a plurality of pixels, a plurality of data lines, an amplifier and a current source. The pixels and data lines are disposed on the substrate. The amplifier and the current source are coupled to one of the data lines, wherein at least a portion of the one of data lines forms a conduction path. One of the pixels is coupled to the one of the data lines at a first node, and the first node is on the first conduction path. A first current that flows from the first node to the first source terminal is different from a second current that flows from the first node to the first output terminal.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: June 14, 2022
    Assignee: INNOLUX CORPORATION
    Inventors: Yuko Furui, Akihiro Iwatsu, Shuji Hagino
  • Publication number: 20210312879
    Abstract: A driver circuit which includes an output circuit and a control circuit coupled to the output circuit. The driver circuit includes a pull-up transistor with a silicon semiconductor layer. The control circuit includes a first transistor with an oxide semiconductor layer.
    Type: Application
    Filed: June 22, 2021
    Publication date: October 7, 2021
    Inventors: Sheng-Feng HUANG, Akihiro IWATSU, Cheng-Min WU, Kuanfeng LEE
  • Patent number: 11069313
    Abstract: A driver circuit which includes an output circuit and a control circuit coupled to the output circuit. The driver circuit includes a pull-up transistor with a silicon semiconductor layer. The control circuit includes a first transistor with an oxide semiconductor layer.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: July 20, 2021
    Assignee: INNOLUX CORPORATION
    Inventors: Sheng-Feng Huang, Akihiro Iwatsu, Cheng-Min Wu, Kuanfeng Lee
  • Publication number: 20190340987
    Abstract: A driver circuit which includes an output circuit and a control circuit coupled to the output circuit. The driver circuit includes a pull-up transistor with a silicon semiconductor layer. The control circuit includes a first transistor with an oxide semiconductor layer.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Inventors: Sheng-Feng HUANG, Akihiro IWATSU, Cheng-Min WU, Kuanfeng LEE
  • Patent number: 10395612
    Abstract: A driver circuit which includes an output circuit and a control circuit coupled to the output circuit. The driver circuit includes a pull-up transistor with a silicon semiconductor layer. The control circuit includes a first transistor with an oxide semiconductor layer.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: August 27, 2019
    Assignee: INNOLUX CORPORATION
    Inventors: Sheng-Feng Huang, Akihiro Iwatsu, Cheng-Min Wu, Kuanfeng Lee
  • Patent number: 9766495
    Abstract: A transflective type liquid crystal panel includes a plurality of sub-pixels arranged in rows and columns to form a sub-pixel array, a plurality of first wires extending along the row direction or the column direction, and a plurality of second wires which are parallel with the first wires. The plurality of sub-pixels includes transmissive sub-pixels and reflective sub-pixels. Each row and column in the sub-pixel array has both transmissive sub-pixels and reflective sub-pixels. The transmissive sub-pixels are connected to and driven by the first wires, and the reflective sub-pixels are connected to and driven by the second wires.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: September 19, 2017
    Assignee: INNOLUX CORPORATION
    Inventors: Akihiro Iwatsu, Cheng-Min Wu, Sheng-Feng Huang, Cheng-Hsiao Lin
  • Publication number: 20170162145
    Abstract: A driver circuit which includes an output circuit and a control circuit coupled to the output circuit. The driver circuit includes a pull-up transistor with a silicon semiconductor layer. The control circuit includes a first transistor with an oxide semiconductor layer.
    Type: Application
    Filed: December 1, 2016
    Publication date: June 8, 2017
    Inventors: Sheng-Feng HUANG, Akihiro IWATSU, Cheng-Min WU, Kuanfeng LEE
  • Publication number: 20160291376
    Abstract: A display device is provided. The display device includes a display region and a non-display region adjacent to the display region, wherein the display region is non-rectangular and includes a plurality of first pixels and a plurality of second pixels, wherein the plurality of second pixels is disposed at the periphery of the display region and surrounds the plurality of first pixels, wherein when the plurality of first pixels and the plurality of second pixels are supplied with the same operating voltage, the plurality of second pixels has two or more brightness levels.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 6, 2016
    Inventors: Akihiro IWATSU, Sheng-Feng HUANG
  • Publication number: 20160085116
    Abstract: A transflective type liquid crystal panel includes a plurality of sub-pixels arranged in rows and columns to form a sub-pixel array, a plurality of first wires extending along the row direction or the column direction, and a plurality of second wires which are parallel with the first wires. The plurality of sub-pixels includes transmissive sub-pixels and reflective sub-pixels. Each row and column in the sub-pixel array has both transmissive sub-pixels and reflective sub-pixels. The transmissive sub-pixels are connected to and driven by the first wires, and the reflective sub-pixels are connected to and driven by the second wires.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 24, 2016
    Inventors: Akihiro IWATSU, Cheng-Min WU, Sheng-Feng HUANG, Cheng-Hsiao LIN
  • Publication number: 20150378472
    Abstract: A touch sensing display and a sensing method thereof are provided. The touch sensing display includes a touch sensor layer and an active shield layer. The active shield layer includes a plurality of gate lines and a common electrode. The sensing method comprises the following steps. A touch sensing signal is applied to the touch sensor layer during a touch mode period. A gate signal of the gate lines is controlled to be synchronous to the touch sensing signal during the touch mode period. A common signal of the common electrode is controlled to be synchronous to the touch sensing signal during the touch mode period.
    Type: Application
    Filed: September 22, 2014
    Publication date: December 31, 2015
    Applicant: Innolux Corporation
    Inventors: Gerben Johan HEKSTRA, Akihiro IWATSU, Sheng-Feng HUANG
  • Publication number: 20150332641
    Abstract: A transflective panel device includes: a plurality of pixels arranged in columns and rows, each pixel including a transmissive part coupled to a first gate line and a reflective part coupled to a second gate line; a gate driver including a first driving unit and a second driving unit, wherein the first driving unit is coupled to the first gate lines and drives the transmissive parts based on a first driving signal and the second driving unit is coupled to the second gate lines and drives the reflective parts based on a second driving signal; wherein the first driving signal and the second driving signal are controlled independently.
    Type: Application
    Filed: August 4, 2014
    Publication date: November 19, 2015
    Inventors: Akihiro IWATSU, Chien-Feng SHIH
  • Patent number: 8284122
    Abstract: The invention aims at providing a matrix addressing method and circuitry and display device, which enable power savings without as little degrading the legibility of content of an image as possible. A matrix addressing method for driving pixels arranged over a display area by signals supplied to row electrodes and column electrodes arranged to cross one another.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: October 9, 2012
    Assignee: TPO Hong Kong Holding Limited
    Inventors: Shuji Hagino, Hidetoshi Watanabe, Yuko Furui, Akihiro Iwatsu
  • Patent number: 7928948
    Abstract: The invention aims at preventing an occurrence of artefacts while reducing power consumption. A matrix addressing method for alternately driving pixels. The frame period of the images is formed by successively sequencing on a time series a plurality of block periods, the block periods each being composed of a first half block being a period for successively sequencing on a time series application timings of the pixel voltages for one or more row electrodes to be provided with one polarity, the second half block being a period for successively sequencing on a time series application timings of the pixel voltages for one or more row electrodes to be provided with the other polarity. Ones of even-numbered row electrodes and odd-numbered row electrodes in arrangement order on the display screen are selected in the first half block. The others spatially adjoining the ones are selected in the second half block.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: April 19, 2011
    Assignee: TPO Hong Kong Holdings Limited Corp.
    Inventors: Shuji Hagino, Hidetoshi Watanabe, Akihiro Iwatsu, Keitaro Yamashita
  • Publication number: 20090213042
    Abstract: The invention aims at providing a matrix addressing method and circuitry and display device, which enable power savings without as little degrading the legibility of content of an image as possible. A matrix addressing method for driving pixels arranged over a display area by signals supplied to row electrodes and column electrodes arranged to cross one another.
    Type: Application
    Filed: May 9, 2006
    Publication date: August 27, 2009
    Applicant: TPO HONG KONG HOLDING LIMITED
    Inventors: Shuji Hagino, Hidetoshi Watanabe, Yuko Furui, Akihiro Iwatsu