Patents by Inventor Shen-Feng Tai

Shen-Feng Tai 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: 9310945
    Abstract: A touch-sensing display device comprises a plurality of row electrodes and column electrodes, a capacitance detector, detecting first capacitance-variation values of the row electrodes and second capacitance-variation values of the column electrodes, and detecting third capacitance-variation values of each intersection of the row electrodes and the column electrodes. The processor counts the first number of the first and second capacitance-variation values, exceeding a first threshold, counts the second number of the first and second capacitance-variation values up to a maximum capacitor-variation value, and counts the third number of the third capacitance values, exceeding a second threshold. The processor makes the touch-sensing display device enter a bending mode when the first and second numbers are over a first predetermined number and a second predetermined number respectively, and the third number is below the first number.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: April 12, 2016
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Patent number: 9262009
    Abstract: A touch device and method for detecting a touch point thereof are provided. The method includes: detecting a plurality of first touch values, second touch values and third touch values corresponding to a plurality of touch regions of a touch panel, respectively, during a first frame period, a second frame period and a third frame period; performing a value obtaining operation to output a median of the first touch value, the second touch value and the third touch value to which each of the touch regions correspond; and determining a real touch point according a touch threshold and the first touch values, the second touch values and the third touch values outputted by the value obtaining operation.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: February 16, 2016
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Patent number: 9244579
    Abstract: A touch display apparatus and a touch mode switching method thereof are provided. A touch mode of a touch panel is switched according to a touch track and a touch area of an input tool.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: January 26, 2016
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Li-Lin Liu, Shen-Feng Tai, Chung-Wen Chang, Jui-Min Liu
  • Publication number: 20150378473
    Abstract: A touch sensitive device includes a plurality of first electrodes; a plurality of second electrodes, disposed around the plurality of first electrodes; a plurality of first surrounding pattern that are formed by the plurality of first electrodes and the plurality of second electrodes and a plurality of second surrounding patterns that are formed by the plurality of first electrodes and the plurality of second electrodes. Each of the first surrounding patterns comprises one of the first electrodes that interleaves with one of the second electrodes. Each of the second surrounding patterns comprises one of the second electrodes that is sandwiched between another of the second electrodes and one of the second electrodes.
    Type: Application
    Filed: November 17, 2014
    Publication date: December 31, 2015
    Inventors: Chia-Wei Hu, Wai Pan Wu, Shen-Feng Tai
  • Patent number: 9104265
    Abstract: A touch device and an operating method thereof are provided. The operating method includes the following steps. A plurality of data baseline values of the touch panel is calibrated and set during an initialization of a touch panel. A plurality of touch data is obtained after scanning the touch panel. A plurality of touch values corresponding to the touch panel is calculated according to the data baseline values and the touch data. A touch point is detected according to the touch values. When the touch data is complied with a re-calibration requirement, the data baseline values are re-calibrated and reset.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: August 11, 2015
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20150212615
    Abstract: An active array of a capacitive touch panel includes a plurality of first electrodes, a plurality of second electrodes and a plurality of first auxiliary electrodes, where the first electrodes are connected to a scan signal transmitting circuit of the capacitive touch panel, and are used for receiving a plurality of scan signals, respectively; the second electrodes are connected to a detecting circuit of the capacitive touch panel; and the first electrodes and the first auxiliary electrodes are fabricated in a same metal layer, and the first electrodes are not connected to the first auxiliary electrodes.
    Type: Application
    Filed: April 9, 2014
    Publication date: July 30, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chia-Wei Hu, Jui-Ni Li, Shen-Feng Tai
  • Patent number: 9075465
    Abstract: An exemplary method of identifying a touch event on a touch panel is provided. The touch panel includes a plurality of sensing blocks. The sensing blocks have a plurality of corresponding sensing values generated in response to the touch event. The exemplary method includes the following steps: selecting a processing region on the touch panel, wherein the processing region comprises at least a portion of sensing blocks each having a sensing value greater than a threshold; deriving a first value and a second value from sensing values of sensing blocks included in the processing region; calculating a ratio of the first value to the second value; and identifying the touch event according to at least the ratio.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: July 7, 2015
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chin-Lin Lee, Shen-Feng Tai, Jui-Min Liu, Chun-Yen Liu
  • Publication number: 20150169102
    Abstract: A touch display apparatus and a touch mode switching method thereof are provided. A touch mode of a touch panel is switched according to a touch track and a touch area of an input tool.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 18, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Li-Lin Liu, Shen-Feng Tai, Chung-Wen Chang, Jui-Min Liu
  • Publication number: 20150153872
    Abstract: A touch sensing device including a plurality of first sensing electrode sets, a plurality of first conductive lines, and a plurality of sensing sets is provided. The first sensing electrode sets are arranged in an array. The first conductive lines are respectively connected to the first sensing electrode sets. The sensing sets are capacitively coupled to the first sensing electrode sets. Each of the first sensing electrode sets is capacitively coupled to at least two of the sensing sets. One of each of the first sensing electrode sets and each of the sensing sets is a signal transmitter, and the other of each of the first sensing electrode sets and each of the sensing sets is a signal receiver.
    Type: Application
    Filed: March 14, 2014
    Publication date: June 4, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chia-Wei Hu, Shen-Feng Tai, Wai-Pan Wu, Chia-Ling Lo, Jui-Ni Li
  • Patent number: 9013434
    Abstract: A touch display panel, including first electrode patterns, second electrode patterns, active elements, third electrode patterns and fourth electrode patterns is provided. The second electrode patterns and the first electrode pattern are set to form pixel areas. Each of the active elements is disposed in one of the pixel areas and electrically connected to the corresponding first electrode pattern and second electrode pattern. The third electrode patterns are arranged along a direction of an arrangement direction of the second electrode patterns and divide the second electrode patterns into groups, wherein each third pattern covers columns of the pixel areas. The fourth electrode patterns are electrically insulated to the third electrode patterns. Each fourth electrode pattern is disposed in one of the pixel areas and electrically connected to the corresponding active element. A driving method of a touch display panel is also provided.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: April 21, 2015
    Assignee: Himax Technologies Limited
    Inventors: Chia-Wei Hu, Yaw-Guang Chang, Shen-Feng Tai, Wai-Pan Wu
  • Publication number: 20150103031
    Abstract: A touch-sensing display device comprises a plurality of row electrodes and column electrodes, a capacitance detector, detecting first capacitance-variation values of the row electrodes and second capacitance-variation values of the column electrodes, and detecting third capacitance-variation values of each intersection of the row electrodes and the column electrodes. The processor counts the first number of the first and second capacitance-variation values, exceeding a first threshold, counts the second number of the first and second capacitance-variation values up to a maximum capacitor-variation value, and counts the third number of the third capacitance values, exceeding a second threshold. The processor makes the touch-sensing display device enter a bending mode when the first and second numbers are over a first predetermined number and a second predetermined number respectively, and the third number is below the first number.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 16, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20150091814
    Abstract: A method for detecting noise of a touch panel and performing signal control is provided, where the method may determine how many cycles of frame data are influenced by noise, may determine whether the frame data is influenced by noise by determining whether a number of cycles influenced by noise is greater than a first threshold value or not, and may determine whether a number of continuous frame data determined to be influenced by noise is greater than a second threshold value to generate a determination result. Finally, the method may determine whether to adjust a frequency of the transmitting signals according to the determination result.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai, Jui-Min Liu
  • Patent number: 8988378
    Abstract: A touch device and a driving method thereof are provided. A scanning line driving frequency of the touch device is switched according to a plurality of preset driving frequency setting data groups, so as to prevent misjudgment of a touched position caused by electromagnetic noise.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: March 24, 2015
    Assignee: Himax Technologies Limited
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20150062058
    Abstract: A touch panel capable of detecting a stylus is disclosed. At least one self scan cycle and at least one mutual scan cycle are performed in each scan frame, and touch identification of the stylus is affirmed when both touch identifications via the self scan cycle and the mutual scan cycle are detected.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 5, 2015
    Applicant: Himax Technologies Limited
    Inventors: Chung-Wen Chang, Shen-Feng Tai, Jui-Min Liu, Chun-Kai Chuang
  • Publication number: 20150042596
    Abstract: A touch panel capable of performing proximity function is disclosed. A voltage is applied to column electrode or row electrode during a self scan cycle, and a capacitive object close to a surface of the touch panel is measured on the same column electrode or row electrode. A voltage is applied to one axis during a mutual scan cycle, and a capacitive object close to the surface of the touch panel is measured on the other axis.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 12, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chung-Wen Chang, Shen-Feng Tai, Jui-Min Liu, Li-Lin Liu
  • Publication number: 20140368449
    Abstract: A touch display panel, including first electrode patterns, second electrode patterns, active elements, third electrode patterns and fourth electrode patterns is provided. The second electrode patterns and the first electrode pattern are set to form pixel areas. Each of the active elements is disposed in one of the pixel areas and electrically connected to the corresponding first electrode pattern and second electrode pattern. The third electrode patterns are arranged along a direction of an arrangement direction of the second electrode patterns and divide the second electrode patterns into groups, wherein each third pattern covers columns of the pixel areas. The fourth electrode patterns are electrically insulated to the third electrode patterns. Each fourth electrode pattern is disposed in one of the pixel areas and electrically connected to the corresponding active element. A driving method of a touch display panel is also provided.
    Type: Application
    Filed: November 5, 2013
    Publication date: December 18, 2014
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chia-Wei Hu, Yaw-Guang Chang, Shen-Feng Tai, Wai-Pan Wu
  • Patent number: 8902186
    Abstract: A touch display apparatus and a touch position mapping method thereof are provided, by mapping a touch position detected by a touch module to a display area of a display module according to one fitting function, so that a touch position on the display area of the display module may be determined according to a mapping result.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: December 2, 2014
    Assignee: Himax Technologies Limited
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20140347314
    Abstract: A method of detecting a touch force capable of detecting a touch force applied to a touch panel by an object is provided. The method of detecting a touch force comprises following steps. The touch panel is provided. A relation between a sensing capacitance of the touch panel and the touch force is built. The object touches the touch panel, and a detecting sensing capacitance of the touch panel is obtained. A detecting result is obtained according the relation and the detecting sensing capacitance. Moreover, a detector is also provided.
    Type: Application
    Filed: October 28, 2013
    Publication date: November 27, 2014
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Min Liu, Chin-Lin Lee, Li-Lin Liu, Shen-Feng Tai
  • Patent number: 8896568
    Abstract: A touch sensing method adapted for a touch panel is provided. The touch sensing method includes following steps. An average value of touch values generated by a touch object on the touch panel is calculated during a first frame period. An amplitude value of the touch values generated by the touch object on the touch panel is calculated based on the average value during a second frame period. Whether the touch object is a target to be sensed is determined based on the amplitude value. Furthermore, a touch sensing apparatus is also provided.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: November 25, 2014
    Assignee: Himax Technologies Limited
    Inventors: Jui-Ming Liu, Shen-Feng Tai
  • Publication number: 20140306920
    Abstract: A touch screen structure for receiving and processing touch signal is disclosed, in which the touch screen structure includes a substrate, a plurality of conductive patterns, a plurality of first routing traces, and a plurality of second routing traces. The conductive patterns are disposed on the substrate, in which each of the conductive patterns has a first side and a second side disposed opposite to the first side. The first routing traces are disposed on the substrate, in which the first routing traces are electrically connected to the first sides of the conductive patterns. The second routing traces are disposed on the substrate, in which the second routing traces are electrically connected to the second sides of the conductive patterns.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 16, 2014
    Applicant: Himax Technologies Limited
    Inventors: Jui-Ni LEE, Sheng-Fan YANG, Yaw-Guang CHANG, Shen-Feng TAI, Cheng-Feng HSIEH