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).
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Publication number: 20240135896Abstract: 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: ApplicationFiled: January 4, 2024Publication date: April 25, 2024Inventors: Sheng-Feng HUANG, Akihiro IWATSU, Cheng-Min WU, Kuanfeng LEE
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Publication number: 20240087517Abstract: 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: ApplicationFiled: September 12, 2022Publication date: March 14, 2024Applicant: Innolux CorporationInventors: Yuko Furui, Akihiro Iwatsu, Shuji Hagino
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Patent number: 11900893Abstract: 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: GrantFiled: June 22, 2021Date of Patent: February 13, 2024Assignee: INNOLUX CORPORATIONInventors: Sheng-Feng Huang, Akihiro Iwatsu, Cheng-Min Wu, Kuanfeng Lee
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Patent number: 11656124Abstract: 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: GrantFiled: January 26, 2022Date of Patent: May 23, 2023Assignee: INNOLUX CORPORATIONInventors: Yuko Furui, Akihiro Iwatsu, Shuji Hagino
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Patent number: 11523077Abstract: 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: GrantFiled: December 21, 2020Date of Patent: December 6, 2022Assignee: Innolux CorporationInventors: Yuko Furui, Akihiro Iwatsu, Shuji Hagino
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Publication number: 20220201228Abstract: 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: ApplicationFiled: December 21, 2020Publication date: June 23, 2022Applicant: Innolux CorporationInventors: Yuko Furui, Akihiro Iwatsu, Shuji Hagino
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Patent number: 11363229Abstract: 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: GrantFiled: April 27, 2021Date of Patent: June 14, 2022Assignee: INNOLUX CORPORATIONInventors: Yuko Furui, Akihiro Iwatsu, Shuji Hagino
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Publication number: 20210312879Abstract: 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: ApplicationFiled: June 22, 2021Publication date: October 7, 2021Inventors: Sheng-Feng HUANG, Akihiro IWATSU, Cheng-Min WU, Kuanfeng LEE
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Patent number: 11069313Abstract: 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: GrantFiled: July 16, 2019Date of Patent: July 20, 2021Assignee: INNOLUX CORPORATIONInventors: Sheng-Feng Huang, Akihiro Iwatsu, Cheng-Min Wu, Kuanfeng Lee
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Publication number: 20190340987Abstract: 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: ApplicationFiled: July 16, 2019Publication date: November 7, 2019Inventors: Sheng-Feng HUANG, Akihiro IWATSU, Cheng-Min WU, Kuanfeng LEE
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Patent number: 10395612Abstract: 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: GrantFiled: December 1, 2016Date of Patent: August 27, 2019Assignee: INNOLUX CORPORATIONInventors: Sheng-Feng Huang, Akihiro Iwatsu, Cheng-Min Wu, Kuanfeng Lee
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Patent number: 9766495Abstract: 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: GrantFiled: September 9, 2015Date of Patent: September 19, 2017Assignee: INNOLUX CORPORATIONInventors: Akihiro Iwatsu, Cheng-Min Wu, Sheng-Feng Huang, Cheng-Hsiao Lin
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Publication number: 20170162145Abstract: 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: ApplicationFiled: December 1, 2016Publication date: June 8, 2017Inventors: Sheng-Feng HUANG, Akihiro IWATSU, Cheng-Min WU, Kuanfeng LEE
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Publication number: 20160291376Abstract: 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: ApplicationFiled: March 30, 2015Publication date: October 6, 2016Inventors: Akihiro IWATSU, Sheng-Feng HUANG
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Publication number: 20160085116Abstract: 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: ApplicationFiled: September 9, 2015Publication date: March 24, 2016Inventors: Akihiro IWATSU, Cheng-Min WU, Sheng-Feng HUANG, Cheng-Hsiao LIN
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Publication number: 20150378472Abstract: 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: ApplicationFiled: September 22, 2014Publication date: December 31, 2015Applicant: Innolux CorporationInventors: Gerben Johan HEKSTRA, Akihiro IWATSU, Sheng-Feng HUANG
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Publication number: 20150332641Abstract: 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: ApplicationFiled: August 4, 2014Publication date: November 19, 2015Inventors: Akihiro IWATSU, Chien-Feng SHIH
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Patent number: 8284122Abstract: 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: GrantFiled: May 9, 2006Date of Patent: October 9, 2012Assignee: TPO Hong Kong Holding LimitedInventors: Shuji Hagino, Hidetoshi Watanabe, Yuko Furui, Akihiro Iwatsu
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Patent number: 7928948Abstract: 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: GrantFiled: August 11, 2005Date of Patent: April 19, 2011Assignee: TPO Hong Kong Holdings Limited Corp.Inventors: Shuji Hagino, Hidetoshi Watanabe, Akihiro Iwatsu, Keitaro Yamashita
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Publication number: 20090213042Abstract: 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: ApplicationFiled: May 9, 2006Publication date: August 27, 2009Applicant: TPO HONG KONG HOLDING LIMITEDInventors: Shuji Hagino, Hidetoshi Watanabe, Yuko Furui, Akihiro Iwatsu