Patents by Inventor Chien-Yung Cheng

Chien-Yung 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: 10152181
    Abstract: A touch display device including a first substrate, a second substrate, a display medium layer, a plurality of pixel electrodes, a plurality of driving electrodes, a plurality of touch sensing electrodes, and a plurality of force-sensing electrodes is provided. The second substrate is opposite to the first substrate. The display medium layer is disposed between the first substrate and the second substrate. The pixel electrodes are disposed on the first substrate. The driving electrodes are disposed on the first substrate and overlap over the pixel electrodes. The touch sensing electrodes are disposed on one of the first substrate and the second substrate. The force-sensing electrodes are disposed on the second substrate, wherein an arrangement direction of the force-sensing electrodes is parallel to an arrangement direction of the touch sensing electrodes. A driving method of the touch display device is also provided.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: December 11, 2018
    Assignee: FOCALTECH SYSTEMS, CO. LTD.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 10133380
    Abstract: A touch display device including a first substrate, a second substrate, a display medium layer, a pixel electrode layer, a touch electrode structure, and a force-sensing layer is provided. The second substrate is opposite to the first substrate. The display medium layer is disposed between the first substrate and the second substrate. The pixel electrode layer is disposed between the display medium layer and the first substrate. The touch electrode structure is disposed on the second substrate and includes a driving electrode layer and a touch-sensing layer. The force-sensing layer is disposed on the first substrate, and a variable gap exists between the force-sensing layer and the driving electrode layer. A driving method of the touch display device is also provided.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: November 20, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 9983752
    Abstract: A pressure detection method for an in-cell touch display and a mobile device using the same are provided. The pressure detection method comprises the steps of: providing a common voltage plane corresponding to touch sensing electrodes in the in-cell touch display; detecting capacitance values of the touch sensing electrodes; setting a first area and a second area according to a center of a touched portion when the in-cell touch display is determined as being touched, wherein the second area includes the first area; and excluding the capacitance values of the touch sensing electrodes in the first area, and using the capacitance values of the touch sensing electrodes in the second area to serve as a pressure detection value to determine a pressure exerted on the in-cell touch display.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: May 29, 2018
    Assignee: FOCALTECH ELECTRONICS, LTD.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng, Cheng-Tai Huang
  • Patent number: 9874970
    Abstract: A touch display device including a first substrate, a second substrate, a display medium layer, a pixel array structure and a pressure sensing electrode layer is provided. The display medium layer is disposed between the first substrate and the second substrate. The pixel array structure is disposed between the second substrate and the display medium layer and includes a plurality of pixel electrodes and a multi-function electrode layer overlapping the pixel electrodes. The pressure sensing electrode layer is parallel to the multi-function electrode layer and a changeable gap is formed between the pressure sensing electrode layer and the multi-function electrode layer. The touch display device capable of 3D touch is provided.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: January 23, 2018
    Assignee: FOCALTECH SYSTEMS, CO. LTD.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Publication number: 20170177141
    Abstract: A pressure detection method for an in-cell touch display and a mobile device using the same are provided. The pressure detection method comprises the steps of: providing a common voltage plane corresponding to touch sensing electrodes in the in-cell touch display; detecting capacitance values of the touch sensing electrodes; setting a first area and a second area according to a center of a touched portion when the in-cell touch display is determined as being touched, wherein the second area includes the first area; and excluding the capacitance values of the touch sensing electrodes in the first area, and using the capacitance values of the touch sensing electrodes in the second area to serve as a pressure detection value to determine a pressure exerted on the in-cell touch display.
    Type: Application
    Filed: September 27, 2016
    Publication date: June 22, 2017
    Inventors: Po-Sheng SHIH, CHIEN-YUNG CHENG, Cheng-Tai HUANG
  • Publication number: 20170123540
    Abstract: A touch display device including a first substrate, a second substrate, a display medium layer, a pixel electrode layer, a touch electrode structure, and a force-sensing layer is provided. The second substrate is opposite to the first substrate. The display medium layer is disposed between the first substrate and the second substrate. The pixel electrode layer is disposed between the display medium layer and the first substrate. The touch electrode structure is disposed on the second substrate and includes a driving electrode layer and a touch-sensing layer. The force-sensing layer is disposed on the first substrate, and a variable gap exists between the force-sensing layer and the driving electrode layer. A driving method of the touch display device is also provided.
    Type: Application
    Filed: May 6, 2016
    Publication date: May 4, 2017
    Inventors: Po-Sheng SHIH, Chien-Yung CHENG
  • Publication number: 20170115768
    Abstract: A touch display device including a first substrate, a second substrate, a display medium layer, a plurality of pixel electrodes, a plurality of driving electrodes, a plurality of touch sensing electrodes, and a plurality of force-sensing electrodes is provided. The second substrate is opposite to the first substrate. The display medium layer is disposed between the first substrate and the second substrate. The pixel electrodes are disposed on the first substrate. The driving electrodes are disposed on the first substrate and overlap over the pixel electrodes. The touch sensing electrodes are disposed on one of the first substrate and the second substrate. The force-sensing electrodes are disposed on the second substrate, wherein an arrangement direction of the force-sensing electrodes is parallel to an arrangement direction of the touch sensing electrodes. A driving method of the touch display device is also provided.
    Type: Application
    Filed: March 18, 2016
    Publication date: April 27, 2017
    Inventors: Po-Sheng SHIH, Chien-Yung CHENG
  • Publication number: 20170115799
    Abstract: A touch display device including a first substrate, a second substrate, a display medium layer, a pixel array structure and a pressure sensing electrode layer is provided. The display medium layer is disposed between the first substrate and the second substrate. The pixel array structure is disposed between the second substrate and the display medium layer and includes a plurality of pixel electrodes and a multi-function electrode layer overlapping the pixel electrodes. The pressure sensing electrode layer is parallel to the multi-function electrode layer and a changeable gap is formed between the pressure sensing electrode layer and the multi-function electrode layer. The touch display device capable of 3D touch is provided.
    Type: Application
    Filed: March 18, 2016
    Publication date: April 27, 2017
    Inventors: Po-Sheng SHIH, Chien-Yung CHENG
  • Patent number: 9569051
    Abstract: A method for determining touch point coordinates on capacitive type touch panel includes following steps. A touch panel having a conductive layer, a plurality of first electrodes, and a plurality of second electrodes is provided. A first signal curve As1 is obtained by driving and sensing each first electrode. A second signal curve As2 is obtained by driving and sensing each second electrode. A third signal curve Bs1 is obtained by driving and sensing each first electrode, wherein the second electrode opposite to the sensed first electrode is grounded. A fourth signal curve Bs2 is gotten by driving and sensing each second electrodes, wherein the first electrode opposite to the sensed second electrode is grounded. The coordinates of the touch points are obtained by comparing the first signal curve As1, the second signal curve As2, the third signal curve Bs1, and the fourth signal curve Bs2.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: February 14, 2017
    Assignee: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO., LTD.
    Inventors: Chien-Yung Cheng, Cheng-Tai Huang, Chun-Lung Huang, Feng-Yu Kuo, Po-Sheng Shih
  • Patent number: 9547030
    Abstract: The disclosure relates to a method for recognizing touch. A first value T1 and a second value T2 are set. A number of first sensing values C1 are obtained. C1 is compared with T1 and T2. When C1 is greater than or equal to T1, a touch with finger is recognized. When C1 is smaller than T2, no touch is recognized. When C1 are greater than or equal to T2 and smaller than T1, following steps are taken. A third value T3 is set. At least three driving electrodes are driven and a number of second sensing values C2 are obtained. A number of maximum sensing values C2peak are selected from the C2 and compared with T3. When C2peak are greater than or equal to T3, a touch with glove is recognized. And when not, no touch is recognized.
    Type: Grant
    Filed: January 5, 2014
    Date of Patent: January 17, 2017
    Assignee: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO., LTD.
    Inventors: Li-Min Chao, Chien-Yung Cheng, Po-Sheng Shih
  • Patent number: 9405420
    Abstract: A method for controlling a touch panel is disclosed. A first driving signal is applied to the driving electrodes to obtain a number of first electrical signals corresponding to a number of conductive stripes of touch panel. The first electrical signals are converted into a number of first digital signals by digital analog conversion with a first factor. A second driving signal is applied to a number of driving electrodes to obtain a number of second electrical signals corresponding to a number of button electrodes of the touch panel. The second electrical signals are converted into a number of second digital signals by digital analog conversion with a second factor. The second factor is smaller than the first factor.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: August 2, 2016
    Assignee: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO., LTD.
    Inventors: Chien-Yung Cheng, Po-Sheng Shih, Li-Min Chao
  • Patent number: 9395840
    Abstract: An electronic device includes a shell and a touch panel located in the shell. The touch panel includes a touch sensing unit, a signal transmitting circuit, a signal guiding circuit, a protection unit, and a driving unit. The signal transmitting circuit is electrically connected to the touch sensing unit and the driving unit. The signal guiding circuit surrounds the touch sensing unit and the signal transmitting circuit. The protection unit is electrically connected to the signal guiding circuit and ground. At least one switch signal is outputted from the driving unit and transmitted to the signal transmitting circuit and the signal guiding circuit. An external interference signal is received by the signal guiding circuit and guided to ground via the protection unit.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: July 19, 2016
    Assignee: Shih Hua Technology Ltd.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Publication number: 20160179202
    Abstract: This disclosure is related to a touch device and electronic equipment using the same. The touch device includes a touch panel, a flexible printed circuit and a haptic feedback element. The touch panel includes a first surface and a second surface opposite to the first surface. The flexible printed circuit is electrically connected to the touch panel. The haptic feedback element is located on the flexible printed circuit or the touch panel.
    Type: Application
    Filed: October 29, 2015
    Publication date: June 23, 2016
    Inventors: PO-SHENG SHIH, YU-JU HSU, CHIEN-YUNG CHENG, PIN-LUNG LIN, MING-CHUN CHIU
  • Patent number: 9360973
    Abstract: A method for determining touch point coordinates on a touch panel comprises following steps. A touch panel with a transparent conductive layer is provided, the transparent conductive layer comprises a first direction X having relative low impedance, and a second direction Y having a relative high impedance; a number of first conductive terminals P1 and a number of second conductive terminals P2 opposite the first conductive terminals P1, are electrically connected to the transparent conductive layer, spaced from each other, and arranged along the X direction. At least two adjacent first conductive terminals P1, at least two adjacent second conductive terminals P2, or one of the first conductive terminals P1 and opposite one of the second conductive terminals P2 are simultaneously driven. A number of signals are obtained. The touch point coordinates are obtained by comparing the strengths of the plurality of signals.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: June 7, 2016
    Assignee: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO., LTD.
    Inventors: Chun-Lung Huang, Chien-Yung Cheng, Po-Sheng Shih
  • Patent number: 9329733
    Abstract: A method for detecting touch spots of a touch panel. In the detecting process, a pulse signal is input into each of a plurality of first driving-sensing electrodes, thereby simulating an R1nC curve for computing a coordinate of the touch spots, at a high impedance direction. The capacitance C is detected. A coordinate of the touch spot at a low impedance direction is obtained by calculating a ratio of the R1nC and the capacitance C to obtain the resistance R1n.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: May 3, 2016
    Assignee: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO., LTD.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 9329740
    Abstract: The disclosure relates to a method for recognizing touch. A first value T1 and a second value T2 are set. A maximum sensing value Cpeak is obtained. A position of the Cpeak is defined as a sensing position A. Sensing values C1, C2, C3, and C4 of four neighboring sensing positions are obtained. Cpeak is compared with T1 and T2. When Cpeak is greater than or equal to T1, a touch with finger is recognized. When Cpeak is smaller than T2, no touch is recognized. When Cpeak is greater than or equal to T and smaller than T1, following steps are taken. A third value T3 is set. A first total sensing value Ct of C1, C2, C3, and C4 is compared with T3. When Ct is greater than or equal to T3, a touch with glove is recognized. When Ct is less than T3, no touch is recognized.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: May 3, 2016
    Assignee: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO., LTD.
    Inventors: Li-Min Chao, Chien-Yung Cheng, Po-Sheng Shih
  • Patent number: 9285914
    Abstract: A method for detecting a touch spot of the touch panel includes the following steps. The electrode pairs are scanned along the impedance direction to obtain an electrical signal curve for determining a first coordinate. A number of first driving electrodes and a number of second driving electrodes near the first coordinate are selected. The selected first driving electrodes are scanned to obtain a first sensing signal. The selected second driving electrodes are scanned to obtain a second sensing signal. A second coordinate is determined according to the first and second sensing signals. Finally, the touch spot is determined according to the first and second coordinates.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: March 15, 2016
    Assignee: Shih Hua Technology Ltd.
    Inventors: Chun-Lung Huang, Po-Yang Chen, Chien-Yung Cheng, Po-Sheng Shih
  • Patent number: 9262008
    Abstract: The disclosure relates to a method for recognizing touch on a touch panel. A first value and a second value are set. Sensing value Cn is compared with the first value and the second value. When the sensing value Cn is greater than or equal to the first value, a touch with finger is recognized. When the sensing value Cn is smaller than the second value, no touch is recognized. When the sensing values Cn are greater than or equal to the second value and smaller than the first value, following steps are taken. A time period is setting. Touch signals are sensed several times during the time period and a number of maximum sensing values ?Cpeak are selected. Average sensing values ?Cpeak are calculated. When the average sensing values ?Cpeak satisfy following formula: 0.8 ?Cpeak??Cpeak?1.2 ?Cpeak, a touch with glove is determined. And when not, no touch is recognized.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: February 16, 2016
    Assignee: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO., LTD.
    Inventors: Li-Min Chao, Chien-Yung Cheng, Po-Sheng Shih
  • Publication number: 20150363037
    Abstract: A control method of a touch panel is provided. In the method, the touch panel senses a plurality of touch signals in succession on a timeline generated by a continuous touch on the surface of the touch panel, converts the plurality of touch signals to a plurality of touch coordinates, a first touch track is formed by the plurality of touch coordinates. The touch panel determines if there is a first touch signal sensed on the boundary. The touch panel determines if there is a second touch signal sensed on the timeline in a preset time threshold. The touch panel obtains a second touch track beginning from the second touch signal, and fits the first touch track and the second touch track into one complete touch track, or recognizes the first touch track and the second touch track as two independent tracks.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 17, 2015
    Inventors: PO-SHENG SHIH, CHIEN-YUNG CHENG, CHUN-LUNG HUANG, PIN-LUNG LIN
  • Publication number: 20150309635
    Abstract: The disclosure relates to a method for using a controller on a touch sensitive device. The touch sensitive device includes a touch pad and an integrated circuit (IC) electrically connected to the touch pad. The method includes: providing at least one controller; identifying the at least one controller; detecting position of electrical signal of the at least one controller; locating the at least one controller; detecting varying of the electrical signal of the at least one controller; processing the varying of electrical signal; and sending out an order.
    Type: Application
    Filed: April 3, 2015
    Publication date: October 29, 2015
    Inventors: PO-SHENG SHIH, CHIEN-YUNG CHENG, PIN-LUNG LIN, MING-CHUN CHIU