Patents by Inventor Jui-Ming Liu

Jui-Ming Liu 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: 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: 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
  • 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
  • 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
  • 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
  • Patent number: 8810544
    Abstract: A touch sensing method adapted for an electronic apparatus including a touch panel is provided. A touch sensing method includes the following steps: obtaining a mutual-mode data by sensing a gesture applied on the touch panel in a mutual capacitance mode during a first period of a sensing frame; obtaining a self-mode data by sensing the gesture applied on the touch panel in a self capacitance mode during a second period of the sensing frame; and determining a touch location associated with the gesture on the touch panel based on the self-mode data or the mutual-mode data. Furthermore, an electronic apparatus to which the foregoing touch sensing method is applied is also provided.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: August 19, 2014
    Assignee: Himax Technologies Limited
    Inventors: Jui-Ming Liu, Chung-Wen Chang, Shen-Feng Tai, Feng-Wei Yang
  • Publication number: 20140152607
    Abstract: A touch-sensing device with a proximity detection function includes a capacitive touch panel and a control circuit. The capacitive touch panel is arranged for generating a plurality of self-sensing signals via a plurality of traces, respectively. The control circuit is coupled to the capacitive touch panel, and arranged for receiving the plurality of self-sensing signals from the capacitive touch panel, and determining whether there is an object approaching the capacitive touch panel according to the plurality of self-sensing signals.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 5, 2014
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chin-Lin Lee, Shen-Feng Tai, Jui-Ming Liu, Cheng-Feng Hsieh
  • Publication number: 20140145965
    Abstract: A touch device and a driving method of the touch panel thereof are provided. By randomly driving the scan lines and performing a spatial filtering to the count values corresponding to the voltage noise, a circumstance of a touch position misjudgement caused by voltage noise may be improved.
    Type: Application
    Filed: November 27, 2012
    Publication date: May 29, 2014
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20140145964
    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: Application
    Filed: November 26, 2012
    Publication date: May 29, 2014
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20140145998
    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: Application
    Filed: November 26, 2012
    Publication date: May 29, 2014
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Patent number: 8659566
    Abstract: A touch sensing method adapted for an electronic apparatus including a touch panel is provided. The touch sensing method includes the following steps: driving the touch panel by a mutual capacitance mode and a self capacitance mode; sensing a gesture applied on the touch panel, wherein the gesture forms at least one touch area on the touch panel; determining at least one geometric center of the at least one touch area based on self-mode data obtained in the self capacitance mode; and determining at least one touch location associated with the gesture on the touch panel based on the at least one geometric center of the at least one touch area. Furthermore, an electronic apparatus to which the foregoing touch sensing method is applied is also provided.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: February 25, 2014
    Assignee: Himax Technologies Limited
    Inventors: Jui-Ming Liu, Chung-Wen Chang, Shen-Feng Tai, Feng-Wei Yang
  • Publication number: 20130328823
    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: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20130328790
    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: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20130328617
    Abstract: A touch device and a method for detecting touch on the touch device are provided. The method includes the following steps. A plurality of touch values corresponding to a plurality touch region of a touch panel are obtained. A touch block is determined according the touch values and a touch threshold value, which the touch regions within the touch block are adjacent to one another. The touch values of the adjacent touch regions within the touch block are compared with one another to determine whether there is a touch value trough point in the touch block. It is determined that whether the touch block corresponds to a single touch or a multi-touch according to whether there is the touch value trough point in the touch block.
    Type: Application
    Filed: June 11, 2012
    Publication date: December 12, 2013
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20130328789
    Abstract: A touch device and an operating method of the touch device are provided. The operating method includes following steps. A plurality of touch values of a touch panel are obtained. During a first frame period, the obtained touch values are stored in a first memory unit, and a touch point is calculated according to the touch values stored in a second memory unit. During a second frame period, the obtained touch values are stored in the second memory unit, and the touch point is calculated according to the touch values stored in the first memory unit.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Chung-Wen Chang, Feng-Wei Yang, Shen-Feng Tai
  • Patent number: 8466895
    Abstract: A positioning method and a driving apparatus for a touch panel having a plurality of sense electrodes in an axis direction are disclosed. The driving apparatus detects the sense electrodes to obtain a plurality of sensed values. The driving apparatus counts the number of multiple candidate electrodes, wherein the candidate electrode is an electrode having a sensed value larger than a first threshold value. The first threshold value is increased and the number of the candidate electrodes is counted again if the number of the candidate electrodes is larger than a second threshold value. At least one electrode is selected as a positioning electrode from the candidate electrodes if the number of the candidate electrode is not larger than the second threshold value. A position of a touch point on the touch panel in the axis direction is calculated based on the position and sensed value of the positioning electrode.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: June 18, 2013
    Assignee: Himax Tecnologies Limited
    Inventors: Jui-Ming Liu, Chung-Wen Chang, Feng-Wei Yang, Shen-Feng Tai
  • Publication number: 20130093711
    Abstract: A touch sensing method adapted for an electronic apparatus including a touch panel is provided. A touch sensing method includes the following steps: obtaining a mutual-mode data by sensing a gesture applied on the touch panel in a mutual capacitance mode during a first period of a sensing frame; obtaining a self-mode data by sensing the gesture applied on the touch panel in a self capacitance mode during a second period of the sensing frame; and determining a touch location associated with the gesture on the touch panel based on the self-mode data or the mutual-mode data. Furthermore, an electronic apparatus to which the foregoing touch sensing method is applied is also provided.
    Type: Application
    Filed: October 13, 2011
    Publication date: April 18, 2013
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Chung-Wen Chang, Shen-Feng Tai, Feng-Wei Yang
  • Publication number: 20130093712
    Abstract: A touch sensing method adapted for an electronic apparatus including a touch panel is provided. The touch sensing method includes the following steps: driving the touch panel by a mutual capacitance mode and a self capacitance mode; sensing a gesture applied on the touch panel, wherein the gesture forms at least one touch area on the touch panel; determining at least one geometric center of the at least one touch area based on self-mode data obtained in the self capacitance mode; and determining at least one touch location associated with the gesture on the touch panel based on the at least one geometric center of the at least one touch area. Furthermore, an electronic apparatus to which the foregoing touch sensing method is applied is also provided.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 18, 2013
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Chung-Wen Chang, Shen-Feng Tai, Feng-Wei Yang