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: 8952937
    Abstract: A touch display device includes a touch panel, a driving and sensing circuit, a data memory, a processor and a display apparatus. The touch panel is adapted to receive a touch trace including at least one touch point. The driving and sensing circuit is adapted to detect an actual signal value Vi of the at least one touch point. The data memory is adapted to store a look up table including a plurality of position coordinates and calibrating rules f each corresponding to each of the position coordinates and can be used to convert actual signal value V0i of a basic contact area A0 to a standard signal value Vs. The processor is adapted to calculate the position coordinate and calibrate the actual signal value Vi to a calibrated signal value V?i. The display apparatus is adapted to display the touch trace.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: February 10, 2015
    Assignee: Shih Hua Technology Ltd.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Publication number: 20150032395
    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: Application
    Filed: January 5, 2014
    Publication date: January 29, 2015
    Applicant: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO., LTD.
    Inventors: LI-MIN CHAO, CHIEN-YUNG CHENG, PO-SHENG SHIH
  • Publication number: 20150029138
    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: Application
    Filed: January 8, 2014
    Publication date: January 29, 2015
    Applicant: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO.,LTD.
    Inventors: LI-MIN CHAO, CHIEN-YUNG CHENG, PO-SHENG SHIH
  • Publication number: 20150015535
    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: Application
    Filed: January 8, 2014
    Publication date: January 15, 2015
    Applicant: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO.,LTD.
    Inventors: LI-MIN CHAO, CHIEN-YUNG CHENG, PO-SHENG SHIH
  • Publication number: 20150002440
    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: Application
    Filed: June 26, 2013
    Publication date: January 1, 2015
    Inventors: CHUN-LUNG HUANG, CHIEN-YUNG CHENG, PO-SHENG SHIH
  • Patent number: 8922496
    Abstract: An apparatus and a method for controlling a touch panel are disclosed herein, the apparatus includes an object detection module and an adjusting device. The object detection module can detect a position of at least one object contacting the touch panel. A position analyzer recognizes position of the object and the adjusting device can set the touch panel to a predetermined position according to the result recognized by the position analyzer.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: December 30, 2014
    Assignee: Innolux Corporation
    Inventors: Po-Yang Chen, Po-Sheng Shih, Chien-Yung Cheng, Hsuan-Lin Pan
  • Patent number: 8922516
    Abstract: A multi-points detecting method includes proving a touch panel including a plurality of detecting areas including a first detecting area, a second detecting area and a third detecting area. A maximum detecting value of a detecting curve is located in the first detecting area. The first detecting area and the second detecting area are analyzed to obtain a relative distance between a first touch point coordinate and a second touch point coordinate. The touch panel is defined as being touched at the first touch point coordinate or a middle point between the first touch point coordinate and the second touch point coordinate, when the relative distance is less than a predetermined distance. The touch panel is defined as being touched at the first touch point coordinate and the second touch point coordinate, when the relative distance is greater than or equal to the predetermined distance.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: December 30, 2014
    Assignee: Tianjin Funayuanchuang Technology Co., Ltd.
    Inventors: Chun-Lung Huang, Chien-Yung Cheng, Po-Sheng Shih
  • Patent number: 8922517
    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 the high impedance direction. A pulse signal is input into each of a plurality of second driving-sensing electrodes, thereby simulating an R2nC curve. The coordinate of the touch spots, at a low impedance direction can be computed by the R1nC curve and the R2nC curve.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: December 30, 2014
    Assignee: Tianjin Funayuanchuang Technology Co., Ltd.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Publication number: 20140354578
    Abstract: A method for setting a driving signal for an electrode of a touch panel is provided. In the method, a varying driving signal is provided to the electrode. The varying driving signal includes a number of initial driving signal values varying with time. An initial capacitance signal value set is detected untouched from the electrode of the touch panel. The initial capacitance signal value set includes a number of varying initial capacitance signal values. The initial capacitance signal value set is generated and corresponds to the varying driving signal. A basic capacitance signal value is preset. A proximate initial capacitance signal value closest to the basic capacitance signal value is selected from the initial capacitance signal value set. The initial driving signal value corresponding to the proximate initial capacitance signal value is set as an optimized driving signal value of the electrode.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Applicant: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO.,LTD.
    Inventors: CHIEN-YUNG CHENG, CHUN-LUNG HUANG, PO-SHENG SHIH
  • Publication number: 20140354580
    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 the high impedance direction. A pulse signal is input into each of a plurality of second driving-sensing electrodes, thereby simulating an R2nC curve. The coordinate of the touch spots, at a low impedance direction can be computed by the R1nC curve and the R2nC curve.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO.,LTD.
    Inventors: PO-SHENG SHIH, CHIEN-YUNG CHENG
  • Publication number: 20140354581
    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: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO.,LTD.
    Inventors: PO-SHENG SHIH, CHIEN-YUNG CHENG
  • Patent number: 8884915
    Abstract: A method and a driving apparatus for identifying a sensing value of a touch panel are provided. The method includes sensing a plurality of electrodes of the touch panel to obtain raw data and baseline data of each electrode, wherein an electrode Si denotes an ith electrode of the electrodes in the touch panel. A sensing value of the electrode Si is calculated in accordance with the raw data and the baseline data of the electrode Si. When sensing values of all electrodes Si are smaller than a threshold value, the baseline data of the electrode Si is updated in accordance with the raw data of the electrode Si. When a sensing value of any one electrode Si of the electrodes is larger than the threshold value, the baseline data of the electrodes is suspended from being updated.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: November 11, 2014
    Assignee: Innolux Corporation
    Inventors: Po-Yang Chen, Po-Sheng Shih, Chien-Yung Cheng
  • Publication number: 20140320456
    Abstract: The present invention relates to a touch panel. The touch panel includes a sensor, an optically clear adhesive layer, and a cover lens. The sensor has a surface. The optically clear adhesive layer is located on the surface of the sensor. The cover lens is located on a surface of the optically clear adhesive layer. The touch panel defines two areas: a touch-view area and a trace area. A space is defined between the sensor and cover lens in the trace area. The space is filled with dielectric material with a permittivity less than a permittivity of the optically clear adhesive layer.
    Type: Application
    Filed: July 8, 2014
    Publication date: October 30, 2014
    Inventors: PO-YANG CHEN, CHIEN-YUNG CHENG, PO-SHENG SHIH
  • Patent number: 8803829
    Abstract: The present invention relates to a touch panel. The touch panel includes a sensor, an optically clear adhesive layer, and a cover lens. The sensor has a surface. The optically clear adhesive layer is located on the surface of the sensor. The cover lens is located on a surface of the optically clear adhesive layer. The touch panel defines two areas: a touch-view area and a trace area. A space is defined between the sensor and cover lens in the trace area. The space is filled with dielectric material with a permittivity less than a permittivity of the optically clear adhesive layer.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: August 12, 2014
    Assignee: Shih Hua Technology Ltd.
    Inventors: Po-Yang Chen, Chien-Yung Cheng, Po-Sheng Shih
  • Patent number: 8803841
    Abstract: A touch panel includes a conductive film having anisotropic impedance, a plurality of first electrodes, and a plurality of second electrodes. In a method for detecting a touch spot, a plurality of actual detecting signals are obtained by the first electrodes and the second electrodes, thereby determining two first electrodes and two second electrodes closest to the touch spot. The conductive film between the two first electrodes and two second electrodes is defined as a corrective area. An ideal resistance of the corrective area is set. An arbitrary electrode from the two first electrodes and two second electrodes is defined as electrode i. The actual detecting signal Si obtained by the electrode i is corrected according to a ratio of the ideal resistance to an actual resistance of the untouched corrective area.
    Type: Grant
    Filed: December 24, 2011
    Date of Patent: August 12, 2014
    Assignee: Shih Hua Technology Ltd.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 8773401
    Abstract: A touch input device includes a touch panel, a driving and sensing circuit, a data memory, and a processor. The touch panel is adapted to receive a touch trace including at least one touch point. The driving and sensing circuit is adapted to drive the touch panel and detect actual signal value Vi. The data memory is adapted to store a look up table including a plurality of position coordinates and a plurality of calibrating rules f each corresponding to each of the position coordinates. Each of the calibrating rules f can be used to convert actual signal value V0i of the touch point of a basic contact area A0 to a standard signal value Vs. The processor is adapted to calculate the position coordinate and calibrate the actual signal value Vi of the at least one touch point to a calibrated signal value V?i.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: July 8, 2014
    Assignee: Shih Hua Technology Ltd.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 8766947
    Abstract: A touch panel and a differential detection method thereof are disclosed. A controller provides a driving signal to the i-th scan electrode. During providing the driving signal to the i-th scan electrode, the controller senses the feature difference value between two neighboring sensing electrodes within the plural sensing electrodes, and senses the feature difference value ?Ci between the k-th sensing electrode within the sensing electrodes and a reference feature value, in which the feature difference values between the j-th sensing electrode and the (j+1)-th sensing electrode is represented by ?C(i,j). The controller set the feature value of a base sensing point within a plurality of sensing points of the touch panel as a base feature value, and use the base feature value, the feature difference values ?Ci and the feature difference values ?C(i,j) to calculate the feature values of the sensing points.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: July 1, 2014
    Assignee: Innolux Corporation
    Inventors: Chien-Yung Cheng, Po-Sheng Shih, Po-Yang Chen
  • Patent number: 8686309
    Abstract: A touch panel includes an insulating substrate, a transparent conductive layer, a number of electrodes, a number of conductive wires, and at least one conductive zone. The transparent conductive layer corresponding to a touch area of the touch panel is fixed on the insulating substrate. The electrodes are electrically connected to the transparent conductive layer. The conductive wires are electrically connected to a controller and are respectively electrically connected to the electrodes. The at least one conductive zone has two ends. One of the two ends of the at least one conductive zone is electrically connected to the controller. The at least one conductive zone and the conductive wires are disposed in a trace area of the touch panel at a distance.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: April 1, 2014
    Assignee: Shih Hua Technology Ltd.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 8624872
    Abstract: A method for detecting a touch trace is provided. A look up table, including a plurality of position coordinates and calibrating rules f corresponding to each of the plurality of position coordinates, is built. A touch trace including at least one touch point is received, wherein if an actual contact area Ai of the at least one touch point is a basic contact area A0, an actual signal value Vi of the at least one touch point is V0i. Each of the calibrating rules f is to convert the value V0i to a standard signal value Vs. Position coordinates of the at least one touch point are calculated, the actual signal value Vi under the actual contact area Ai is obtained; and the calibrating rule f corresponded is queried. The actual signal value Vi is calibrated to the calibrated signal value V?i.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: January 7, 2014
    Assignee: Shih Hua Technology Ltd.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 8624873
    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 for determining a first coordinate. A number of electrode pairs near the first coordinate are selected to obtain an electrode pair signal. The first driving electrodes of the selected electrode pairs are scanned to obtain a first signal. The second driving electrodes of the selected electrode pairs are scanned to obtain a second signal. A second coordinate is determined according to the electrode pair signal, first signal, and second signal. Finally, the touch spot is determined according to the first coordinate, and second coordinate.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: January 7, 2014
    Assignee: Shih Hua Technology Ltd.
    Inventors: Chun-Lung Huang, Chien-Yung Cheng, Po-Yang Chen, Po-Sheng Shih