Patents by Inventor Yi-RU Cheng

Yi-RU Cheng 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: 9733748
    Abstract: A touch panel is disclosed herein. The touch panel includes a driving line, a gate line, a readout line, and a switching unit. The driving line is configured to transmit a driving signal. The gate line is configured to transmit a scan signal. The readout line forms a mutual capacitance with the gate line, and the mutual capacitance is configured to generate a first sensing signal in response to a driving signal according to a touch operation. The switching unit is electrically coupled to the gate line and the readout line, and configured to be selectively turned on to transmit the first sensing signal to the readout line according to the scan signal.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: August 15, 2017
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Yi-Ru Cheng, Chung-Min Lien, Ya-Ling Hsu, Yueh-Hung Chung
  • Patent number: 9110539
    Abstract: The present invention provides a photo sensor of a photo type touch panel, which includes a transistor with a control terminal receiving a first control signal, a first capacitor electrically connected to a first terminal of the transistor, a first photo transistor with a first terminal electrically connected to the first capacitor, and a second photo transistor with a control terminal receiving a second control signal, a first terminal electrically connected to a second terminal of the first photo transistor, and a second terminal receiving a third control signal.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: August 18, 2015
    Assignee: AU Optronics Corp.
    Inventors: Yi-Ru Cheng, Ya-Ling Hsu
  • Publication number: 20150205431
    Abstract: A touch panel is disclosed herein. The touch panel includes a driving line, a gate line, a readout line, and a switching unit. The driving line is configured to transmit a driving signal. The gate line is configured to transmit a scan signal. The readout line forms a mutual capacitance with the gate line, and the mutual capacitance is configured to generate a first sensing signal in response to a driving signal according to a touch operation. The switching unit is electrically coupled to the gate line and the readout line, and configured to be selectively turned on to transmit the first sensing signal to the readout line according to the scan signal.
    Type: Application
    Filed: October 2, 2014
    Publication date: July 23, 2015
    Inventors: Yi-Ru CHENG, Chung-Min LIEN, Ya-Ling HSU, Yueh-Hung CHUNG
  • Patent number: 9035915
    Abstract: A photo sensor type touch panel includes a plurality of readout lines electrically connected in parallel. The overall capacitance of a coupling capacitor between the readout lines connected in parallel and adjacent data lines having one type of polarity is equal to the overall capacitance of a coupling capacitor between the readout lines connected in parallel and adjacent data lines having the other type of polarity.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: May 19, 2015
    Assignee: AU Optronics Corp.
    Inventors: Yueh-Hung Chung, Yi-Ru Cheng, Ya-Ling Hsu, Hsueh-Ying Huang
  • Patent number: 8823683
    Abstract: A touch pixel array substrate suitable for a touch display panel includes a first substrate, scan lines, data lines, signal-control lines, read-out lines, voltage-shielding lines, active devices, pixel electrodes, and photo-sensing units. The scan lines, the data lines, the signal-control lines, the read-out lines, and the voltage-shielding lines are located on the first substrate. Each of the read-out lines is located between two adjacent data lines. Each of the voltage-shielding lines is located between one of the read-out lines and one of the data lines. Both sides of each of the read-out lines are adjacent to two voltage-shielding lines. The photo-sensing units are located on the first substrate and electrically connected to the scan lines, the signal-control lines, and the read-out lines correspondingly. A touch display panel and a touch pixel structure are also provided.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: September 2, 2014
    Assignee: Au Optronics Corporation
    Inventors: Yueh-Hung Chung, Ya-Ling Hsu, Hsueh-Ying Huang, Yi-Ru Cheng
  • Patent number: 8730211
    Abstract: In an exemplary optical touch circuit and a LCD device using the same, an optical sensing unit is turned on or off according to an irradiation light intensity and accordingly generates a first signal. A first signal readout unit is electrically coupled to the optical sensing unit and turned on or off according to a first operation timing sequence and accordingly outputs the first signal. A touch reference unit is for providing a reference voltage. A second signal readout unit is turned on or off according to a second operation timing sequence and accordingly outputs the reference voltage. The touch sensing unit is electrically coupled to the first and second signal readout units and uses a voltage difference between the first signal and the reference voltage as a basis to determine that whether the optical touch circuit is touched or not.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: May 20, 2014
    Assignee: AU Optronics Corp.
    Inventors: Yi-Ru Cheng, Ya-Ling Hsu, Yueh-Hung Chung, Hsueh-Ying Huang
  • Patent number: 8698719
    Abstract: A displaying method for field sequential color displays using two color fields to produce a full color image is disclosed. The displaying method includes: providing a target full color image, displaying a first color field and displaying a second color field. The target full color image is formed by a first color image optical stimulus, a second color image optical stimulus and a third color image optical stimulus. The first color field displays the first color image optical stimulus and a first part of the third color image optical stimulus, while the second color field displays the second color image optical stimulus and a second part of the third color image optical stimulus, which compensates the shortage of the third color image optical stimulus in the first color field. The target full color image is generated by displaying the first and second color fields in sequence, so as to decrease the displaying frequency of field sequential color displays.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: April 15, 2014
    Assignee: AU Optronics Corporation
    Inventors: Yu-Kuo Cheng, Yi-Pai Huang, Yi-Ru Cheng, Han-Ping D. Shieh
  • Publication number: 20140015801
    Abstract: A photo sensor type touch panel includes a plurality of readout lines electrically connected in parallel. The overall capacitance of a coupling capacitor between the readout lines connected in parallel and adjacent data lines having one type of polarity is equal to the overall capacitance of a coupling capacitor between the readout lines connected in parallel and adjacent data lines having the other type of polarity.
    Type: Application
    Filed: January 24, 2013
    Publication date: January 16, 2014
    Applicant: AU OPTRONICS CORP.
    Inventors: Yueh-Hung Chung, Yi-Ru Cheng, Ya-Ling Hsu, Hsueh-Ying Huang
  • Publication number: 20140015871
    Abstract: A displaying method for field sequential color displays using two color fields to produce a full color image is disclosed. The displaying method includes: providing a target full color image, displaying a first color field and displaying a second color field. The target full color image is formed by a first color image optical stimulus, a second color image optical stimulus and a third color image optical stimulus. The first color field displays the first color image optical stimulus and a first part of the third color image optical stimulus, while the second color field displays the second color image optical stimulus and a second part of the third color image optical stimulus, which compensates the shortage of the third color image optical stimulus in the first color field. The target full color image is generated by displaying the first and second color fields in sequence, so as to decrease the displaying frequency of field sequential color displays.
    Type: Application
    Filed: September 18, 2013
    Publication date: January 16, 2014
    Applicant: AU OPTRONICS CORP.
    Inventors: YU-KUO CHENG, YI-PAI HUANG, YI-RU CHENG, HAN-PING D. SHIEH
  • Patent number: 8564517
    Abstract: A displaying method for field sequential color displays using two color fields to produce a full color image is disclosed. The displaying method includes: providing a target full color image, displaying a first color field and displaying a second color field. The target full color image is formed by a first color image optical stimulus, a second color image optical stimulus and a third color image optical stimulus. The first color field displays the first color image optical stimulus and a first part of the third color image optical stimulus, while the second color field displays the second color image optical stimulus and a second part of the third color image optical stimulus, which compensates the shortage of the third color image optical stimulus in the first color field. The target full color image is generated by displaying the first and second color fields in sequence, so as to decrease the displaying frequency of field sequential color displays.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: October 22, 2013
    Assignee: Au Optronics Corporation
    Inventors: Yu-Kuo Cheng, Yi-Pai Huang, Yi-Ru Cheng, Han-Ping D. Shieh
  • Publication number: 20130155024
    Abstract: A touch pixel array substrate suitable for a touch display panel includes a first substrate, scan lines, data lines, signal-control lines, read-out lines, voltage-shielding lines, active devices, pixel electrodes, and photo-sensing units. The scan lines, the data lines, the signal-control lines, the read-out lines, and the voltage-shielding lines are located on the first substrate. Each of the read-out lines is located between two adjacent data lines. Each of the voltage-shielding lines is located between one of the read-out lines and one of the data lines. Both sides of each of the read-out lines are adjacent to two voltage-shielding lines. The photo-sensing units are located on the first substrate and electrically connected to the scan lines, the signal-control lines, and the read-out lines correspondingly. A touch display panel and a touch pixel structure are also provided.
    Type: Application
    Filed: March 1, 2012
    Publication date: June 20, 2013
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yueh-Hung Chung, Ya-Ling Hsu, Hsueh-Ying Huang, Yi-Ru Cheng
  • Publication number: 20130100080
    Abstract: In an exemplary optical touch circuit and a LCD device using the same, an optical sensing unit is turned on or off according to an irradiation light intensity and accordingly generates a first signal. A first signal readout unit is electrically coupled to the optical sensing unit and turned on or off according to a first operation timing sequence and accordingly outputs the first signal. A touch reference unit is for providing a reference voltage. A second signal readout unit is turned on or off according to a second operation timing sequence and accordingly outputs the reference voltage. The touch sensing unit is electrically coupled to the first and second signal readout units and uses a voltage difference between the first signal and the reference voltage as a basis to determine that whether the optical touch circuit is touched or not.
    Type: Application
    Filed: June 7, 2012
    Publication date: April 25, 2013
    Applicant: AU OPTRONICS CORP.
    Inventors: Yi-Ru CHENG, Ya-Ling Hsu, Yueh-Hung Chung, Hsueh-Ying Huang
  • Publication number: 20130093729
    Abstract: The present invention provides a photo sensor of a photo type touch panel, which includes a transistor with a control terminal receiving a first control signal, a first capacitor electrically connected to a first terminal of the transistor, a first photo transistor with a first terminal electrically connected to the first capacitor, and a second photo transistor with a control terminal receiving a second control signal, a first terminal electrically connected to a second terminal of the first photo transistor, and a second terminal receiving a third control signal.
    Type: Application
    Filed: July 26, 2012
    Publication date: April 18, 2013
    Applicant: AU OPTRONICS CORP.
    Inventors: Yi-Ru Cheng, Ya-Ling Hsu
  • Publication number: 20130069884
    Abstract: A touch-sensing display panel includes display units, touch-sensing units, a gate driver circuit, a data driver circuit, and readout circuits. Each display unit includes a switching element, a gate line, a data line, and a pixel electrode. The switching element is connected to the gate line, the data line, and the pixel electrode. The touch-sensing units includes a first, a second, and a third touch-sensing units. Each touch-sensing unit includes a sensing element and a sensing line electrically connected to the sensing element. The gate driver circuit is electrically connected to the gate line. The data driver circuit is connected to the data line. The readout circuit includes adjacent first and second readout circuits. The sensing line of the first touch-sensing unit is connected to the first readout circuit. The sensing line of the second touch-sensing unit is connected to the first and the second readout circuits simultaneously.
    Type: Application
    Filed: November 28, 2011
    Publication date: March 21, 2013
    Applicant: Au Optronics Corporation
    Inventors: Yi-Ru Cheng, Ya-Ling Hsu
  • Publication number: 20100090937
    Abstract: A displaying method for field sequential color displays using two color fields to produce a full color image is disclosed. The displaying method includes: providing a target full color image, displaying a first color field and displaying a second color field. The target full color image is formed by a first color image optical stimulus, a second color image optical stimulus and a third color image optical stimulus. The first color field displays the first color image optical stimulus and a first part of the third color image optical stimulus, while the second color field displays the second color image optical stimulus and a second part of the third color image optical stimulus, which compensates the shortage of the third color image optical stimulus in the first color field. The target full color image is generated by displaying the first and second color fields in sequence, so as to decrease the displaying frequency of field sequential color displays.
    Type: Application
    Filed: January 26, 2009
    Publication date: April 15, 2010
    Applicant: National Chiao Tung University
    Inventors: Yu-Kuo Cheng, Yi-PAI Huang, Yi-RU Cheng, Han-Ping D. Shieh