Patents by Inventor I-Te Liu

I-Te 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: 10699662
    Abstract: An integrated circuit for driving a display panel is provided. The integrated circuit includes a gamma mapping unit and a mura compensation unit. The gamma mapping unit is configured to receive a gray level of an image data, map the gray level to a gamma code according to at least one gamma table, and output the gamma code. The mura compensation unit is configured to receive the gamma code, and compensate the gamma code according to at least one de-mura table to generate a compensation result after the gamma mapping unit performs the step of mapping the gray level to the gamma code. The integrated circuit drives the display panel according to the compensation result. In addition, a method for driving a display panel is also provided.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: June 30, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: I-Te Liu, Chia-Wei Chang, Chien-Yu Chen, Hsien-Wen Lo
  • Patent number: 10585539
    Abstract: A readout circuit of a touch panel is provided. The readout circuit includes a charge modulator and a correlated double sampling demodulator. The charge modulator is configured to provide a driving current to charge or discharge a sensing electrode of the touch panel and generate a sensing voltage signal. The correlated double sampling demodulator is coupled to the charge modulator. The correlated double sampling demodulator is configured to sample the sensing voltage signal to obtain a voltage variation when a touch event happens. A method for driving the touch panel is also provided.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: March 10, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: I-Te Liu, Wei-Zen Chen
  • Patent number: 10283071
    Abstract: An integrated circuit for driving a display panel is provided. The integrated circuit includes a gamma mapping circuit and a mura compensation circuit. The gamma mapping circuit is configured to receive a gray level of an image data, map the gray level to a gamma code according to at least one gamma table, and output the gamma code. The mura compensation circuit is configured to receive the gamma code, and compensate the gamma code according to at least one de-mura table to generate a compensation result after the gamma mapping circuit performs the step of mapping the gray level to the gamma code. The integrated circuit drives the display panel according to the compensation result. In addition, a method for driving a display panel is also provided.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: May 7, 2019
    Assignee: Novatek Microelectronics Corp.
    Inventors: I-Te Liu, Chia-Wei Chang, Chien-Yu Chen, Hsien-Wen Lo
  • Publication number: 20190129533
    Abstract: A readout circuit of a touch panel is provided. The readout circuit includes a charge modulator and a correlated double sampling demodulator. The charge modulator is configured to provide a driving current to charge or discharge a sensing electrode of the touch panel and generate a sensing voltage signal. The correlated double sampling demodulator is coupled to the charge modulator. The correlated double sampling demodulator is configured to sample the sensing voltage signal to obtain a voltage variation when a touch event happens. A method for driving the touch panel is also provided.
    Type: Application
    Filed: June 29, 2018
    Publication date: May 2, 2019
    Applicant: Novatek Microelectronics Corp.
    Inventors: I-Te Liu, Wei-Zen Chen
  • Publication number: 20180166030
    Abstract: An integrated circuit for driving a display panel is provided. The integrated circuit includes a gamma mapping circuit and a mura compensation circuit. The gamma mapping circuit is configured to receive a gray level of an image data, map the gray level to a gamma code according to at least one gamma table, and output the gamma code. The mura compensation circuit is configured to receive the gamma code, and compensate the gamma code according to at least one de-mura table to generate a compensation result after the gamma mapping circuit performs the step of mapping the gray level to the gamma code. The integrated circuit drives the display panel according to the compensation result. In addition, a method for driving a display panel is also provided.
    Type: Application
    Filed: February 8, 2018
    Publication date: June 14, 2018
    Applicant: Novatek Microelectronics Corp.
    Inventors: I-Te Liu, Chia-Wei Chang, Chien-Yu Chen, Hsien-Wen Lo
  • Publication number: 20180075802
    Abstract: An integrated circuit for driving a display panel is provided. The integrated circuit includes a gamma mapping unit and a mura compensation unit. The gamma mapping unit is configured to receive a gray level of an image data, map the gray level to a gamma code according to at least one gamma table, and output the gamma code. The mura compensation unit is configured to receive the gamma code, and compensate the gamma code according to at least one de-mura table to generate a compensation result after the gamma mapping unit performs the step of mapping the gray level to the gamma code. The integrated circuit drives the display panel according to the compensation result. In addition, a method for driving a display panel is also provided.
    Type: Application
    Filed: June 6, 2017
    Publication date: March 15, 2018
    Applicant: Novatek Microelectronics Corp.
    Inventors: I-Te Liu, Chia-Wei Chang, Chien-Yu Chen, Hsien-Wen Lo
  • Patent number: 9870087
    Abstract: A display driving apparatus configured to drive a touch display panel is provided. The touch display panel includes gate drivers and scan lines. The display driving apparatus includes a driving controller. The driving controller provides clock signals to the gate drivers during a display period. The display period includes scan operation periods. The gate drivers drive the scan lines according to the clock signals during the scan operation periods. The driving controller further provides a clear signal and a pre-charge signal to at least one of the gate drivers to insert at least one touch sensing period between the scan operation periods, so that the touch display panel performs a touch sensing operation during the at least one touch sensing period. Furthermore, a method for driving the touch display panel is also provided.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: January 16, 2018
    Assignee: Novatek Microelectronics Corp.
    Inventors: Kun-Yueh Lin, I-Te Liu, Chien-Yu Chen
  • Patent number: 9772756
    Abstract: A display driver configured to drive a display panel to display an image is provided. The display driver includes an interpolation operation unit and a gamma circuit. The interpolation operation unit is configured to receive two gamma reference curves, and perform an interpolation operation on the two gamma reference curves to generate a plurality of gamma curves. The gamma circuit is configured to select one of the generated gamma curves based on a user selection signal, and drive the display panel to display the image based on the selected gamma curve, so as to adjust a color temperature of the image based on the user selection signal. Color temperatures of the generated gamma curves are distinct, and the generated gamma curves have the same gamma value. Furthermore, a method for adjusting a color temperature of an image is also provided.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: September 26, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: Kuei-Chung Chang, Wan-Yu Kuo, Tzu-Chu Yin, Chun-Ta Wu, I-Te Liu
  • Publication number: 20160351165
    Abstract: A display driver configured to drive a display panel to display an image is provided. The display driver includes an interpolation operation unit and a gamma circuit. The interpolation operation unit is configured to receive two gamma reference curves, and perform an interpolation operation on the two gamma reference curves to generate a plurality of gamma curves. The gamma circuit is configured to select one of the generated gamma curves based on a user selection signal, and drive the display panel to display the image based on the selected gamma curve, so as to adjust a color temperature of the image based on the user selection signal. Color temperatures of the generated gamma curves are distinct, and the generated gamma curves have the same gamma value. Furthermore, a method for adjusting a color temperature of an image is also provided.
    Type: Application
    Filed: June 1, 2015
    Publication date: December 1, 2016
    Inventors: Kuei-Chung Chang, Wan-Yu Kuo, Tzu-Chu Yin, Chun-Ta Wu, I-Te Liu
  • Publication number: 20160349896
    Abstract: A display driving apparatus configured to drive a touch display panel is provided. The touch display panel includes gate drivers and scan lines. The display driving apparatus includes a driving controller. The driving controller provides clock signals to the gate drivers during a display period. The display period includes scan operation periods. The gate drivers drive the scan lines according to the clock signals during the scan operation periods. The driving controller further provides a clear signal and a pre-charge signal to at least one of the gate drivers to insert at least one touch sensing period between the scan operation periods, so that the touch display panel performs a touch sensing operation during the at least one touch sensing period. Furthermore, a method for driving the touch display panel is also provided.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 1, 2016
    Inventors: Kun-Yueh Lin, I-Te Liu, Chien-Yu Chen
  • Patent number: D525445
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: July 25, 2006
    Assignee: Free-Free Industrial Corp.
    Inventors: I-Te Liu, Chien-Hua Liao
  • Patent number: D587261
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: February 24, 2009
    Assignee: AMX LLC
    Inventors: Rashid Skaf, Lorelei Curtiss Connon, Arthur Chao Chung Wu, I-Te Liu, Lee T. VanLanen
  • Patent number: D599801
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: September 8, 2009
    Assignee: AMX LLC
    Inventors: Rashid Skaf, Lorelei Curtiss Connon, Arthur Chao Chung Wu, I-Te Liu, Lee T. VanLanen
  • Patent number: D603407
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: November 3, 2009
    Assignee: AMX LLC
    Inventors: Rashid Skaf, Lorelei Curtiss Connon, I-Te Liu, Jomicheal Porter
  • Patent number: D619132
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: July 6, 2010
    Assignee: AMX LLC
    Inventors: Rashid Skaf, Lorelei Curtiss Connon, I-Te Liu, Jomichael Porter