Patents by Inventor Chi-Mao Hung

Chi-Mao Hung 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).

  • Publication number: 20240012510
    Abstract: The driving circuit of the display includes a timing controller. The timing controller is coupled to a general purpose input/output (GPIO) pin of the touch driver. The timing controller receives an instruction signal via the GPIO pin of the touch driver. The timing controller starts a detection period according to a first edge switched from a first voltage level to a second voltage level of the instruction signal. The timing controller detects a number of pulse signals of the instruction signal, and determines a current operating status of the touch driver according to the number of pulse signals of the instruction signal during the detection period. The timing controller determines that the current operating status of the touch driver is one of touch operation type statuses according to the number of pulse signals of the instruction signal during the detection period being a default number.
    Type: Application
    Filed: September 21, 2023
    Publication date: January 11, 2024
    Applicant: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Shu-Cheng Liu, Pei-Lin Tien, I-Shin Lo, Chi-Mao Hung
  • Patent number: 11809658
    Abstract: The driving circuit of the display includes a timing controller. The timing controller is coupled to a general purpose input/output (GPIO) pin of the touch driver. The timing controller receives an instruction signal via the general purpose input/output pin of the touch driver. The timing controller starts a detection period according to a main falling edge of the instruction signal. The timing controller determines a current operating status of the touch driver according to a number of sub-falling edges of the instruction signal during the detection period.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: November 7, 2023
    Assignee: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Shu-Cheng Liu, Pei-Lin Tien, I-Shin Lo, Chi-Mao Hung
  • Patent number: 11763763
    Abstract: An electrophoretic display device and a driving method for electrophoretic display device are provided. The electrophoretic display device includes an electrophoretic display panel, a network module, a processor and an electrophoretic display driver. The network module is configured to transmit a panel information of the electrophoretic display panel to a web application programming interface. The processor is coupled to the electrophoretic panel and the network module. The processor is configured to receive an image information packet corresponding to the panel information via the web application programming interface. The electrophoretic display driver is coupled to the processor and the electrophoretic display panel. The processor makes the electrophoretic display driver drive the electrophoretic display panel to display an image information according to the image information packet.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: September 19, 2023
    Assignee: E Ink Holdings Inc.
    Inventors: Chi-Mao Hung, Jia-Hong Xu
  • Patent number: 11688356
    Abstract: An electronic paper display and a driving method thereof are provided. The electronic paper display includes an electronic paper display panel, a touch panel and a processing circuit. The touch panel outputs a first touch coordinate of a current touch and a second touch coordinate of a next touch. The processing circuit executes a filter module and a line drawing module. The filter module outputs a first measured position data and a first predicted position data to the line drawing module. The line drawing module drives the electronic paper display panel to display a first predicted track. The filter module outputs a second measured position data to the line drawing module. The line drawing module determines whether a second track display coordinate corresponding to the second measured position data is equal to the first predicted display coordinate to correct the first predicted track.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: June 27, 2023
    Assignee: E Ink Holdings Inc.
    Inventors: Shu-Cheng Liu, Hsiao-Lung Cheng, Pei-Lin Tien, Chi-Mao Hung, Wen-Pin Liu
  • Publication number: 20230021750
    Abstract: A radio frequency rectifier circuit including a rectifier circuit and a controller circuit is provided. The rectifier circuit receives a radio frequency signal and converts the radio frequency signal into a direct-current voltage serving as an output voltage. The rectifier circuit includes multiple power stages and multiple switch circuits. Each of the switch circuits is coupled between two of the power stages. The controller circuit is coupled to the rectifier circuit. The controller circuit outputs a control signal to control a conduction number of the switch circuits according to a value of the output voltage.
    Type: Application
    Filed: May 20, 2022
    Publication date: January 26, 2023
    Applicant: E Ink Holdings Inc.
    Inventors: Zi-Yu Zeng, Tzu-Hsien Yang, Chong-Sin Huang, Zheng-Lun Huang, Ke-Horng Chen, Pin-Cheng Chiu, Chuen-Jen Liu, Chi-Mao Hung
  • Patent number: 11551626
    Abstract: An electronic paper display device and an operation method thereof are provided. The electronic paper display device includes an electronic paper display panel and a timing controller. The timing controller includes a first image buffer memory, a second image buffer memory, and an update buffer memory. The timing controller receives a touch track data. The first image buffer memory and the second image buffer memory are a ping-pong buffer architecture, and receive a video stream in staggered timing. The second image buffer memory receives the touch track data and simultaneously updates a current display screen data stored in the update buffer memory when the first image buffer memory receives the video stream to update the current display screen data into the update buffer memory. The timing controller drives the electronic paper display panel according to the current display screen data.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: January 10, 2023
    Assignee: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Shu-Cheng Liu, Pei-Lin Tien, Cheng-Hsin Chu, Chi-Mao Hung
  • Patent number: 11508324
    Abstract: An E-paper display device including an E-paper display panel and a display driver is provided. The E-paper display panel displays an image. The image includes a first frame and a second frame. The display driver is coupled to the E-paper display panel. The display driver drives the E-paper display panel to display the image. The display driver drives a first pixel group of the E-paper display panel in a first polarity and drives a second pixel group of the E-paper display panel in a second polarity to display the first frame during a first frame period. The first pixel group and the second pixel group are arranged in interlacing. The display driver drives the second pixel group of the E-paper display panel in the first polarity to display the second frame during a second frame period. Moreover, a method for driving an E-paper display panel is also provided.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: November 22, 2022
    Assignee: E Ink Holdings Inc.
    Inventors: Shu-Cheng Liu, Hsiao-Lung Cheng, Pei-Lin Tien, Chi-Mao Hung
  • Patent number: 11501725
    Abstract: An e-paper display device, including a driver circuit. The driver circuit is coupled to the e-paper display panel and drives the e-paper display panel to display one or more line segments, which include a current display line segment and a target display line segment. During a frame period, the driver circuit pre-drives a display area to display a first color according to the current display line segment. At least part of the target display line segment is located in the display area. During a next frame period, the driver circuit drives a part of the display area excluding the target display line segment to display a second color and a part of the display area including the target display line segment to display the first color according to the target display line segment. A method for driving an e-paper display panel.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: November 15, 2022
    Assignee: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Shu-Cheng Liu, Pei-Lin Tien, Chi-Mao Hung
  • Publication number: 20220301509
    Abstract: An electronic paper display device and an operation method thereof are provided. The electronic paper display device includes an electronic paper display panel and a timing controller. The timing controller includes a first image buffer memory, a second image buffer memory, and an update buffer memory. The timing controller receives a touch track data. The first image buffer memory and the second image buffer memory are a ping-pong buffer architecture, and receive a video stream in staggered timing. The second image buffer memory receives the touch track data and simultaneously updates a current display screen data stored in the update buffer memory when the first image buffer memory receives the video stream to update the current display screen data into the update buffer memory. The timing controller drives the electronic paper display panel according to the current display screen data.
    Type: Application
    Filed: January 24, 2022
    Publication date: September 22, 2022
    Applicant: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Shu-Cheng Liu, Pei-Lin Tien, Cheng-Hsin Chu, Chi-Mao Hung
  • Publication number: 20220291801
    Abstract: A driving circuit of a display and an operation method of a timing controller are provided. The driving circuit of the display includes a timing controller. The timing controller is coupled to a general purpose input/output (GPIO) pin of the touch driver. The timing controller receives an instruction signal via the general purpose input/output pin of the touch driver. The timing controller starts a detection period according to a main falling edge of the instruction signal. The timing controller determines a current operating status of the touch driver according to a number of sub-falling edges of the instruction signal during the detection period.
    Type: Application
    Filed: January 21, 2022
    Publication date: September 15, 2022
    Applicant: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Shu-Cheng Liu, Pei-Lin Tien, I-Shin Lo, Chi-Mao Hung
  • Publication number: 20220223113
    Abstract: An electronic paper display and a driving method thereof are provided. The electronic paper display includes an electronic paper display panel, a touch panel and a processing circuit. The touch panel outputs a first touch coordinate of a current touch and a second touch coordinate of a next touch. The processing circuit executes a filter module and a line drawing module. The filter module outputs a first measured position data and a first predicted position data to the line drawing module. The line drawing module drives the electronic paper display panel to display a first predicted track. The filter module outputs a second measured position data to the line drawing module. The line drawing module determines whether a second track display coordinate corresponding to the second measured position data is equal to the first predicted display coordinate to correct the first predicted track.
    Type: Application
    Filed: March 30, 2022
    Publication date: July 14, 2022
    Applicant: E Ink Holdings Inc.
    Inventors: Shu-Cheng Liu, Hsiao-Lung Cheng, Pei-Lin Tien, Chi-Mao Hung, Wen-Pin Liu
  • Publication number: 20220208131
    Abstract: An electrophoretic display device and a driving method for electrophoretic display device are provided. The electrophoretic display device includes an electrophoretic display panel, a network module, a processor and an electrophoretic display driver. The network module is configured to transmit a panel information of the electrophoretic display panel to a web application programming interface. The processor is coupled to the electrophoretic panel and the network module. The processor is configured to receive an image information packet corresponding to the panel information via the web application programming interface. The electrophoretic display driver is coupled to the processor and the electrophoretic display panel. The processor makes the electrophoretic display driver drive the electrophoretic display panel to display an image information according to the image information packet.
    Type: Application
    Filed: October 19, 2021
    Publication date: June 30, 2022
    Applicant: E Ink Holdings Inc.
    Inventors: Chi-Mao Hung, Jia-Hong Xu
  • Publication number: 20220057688
    Abstract: An electrophoretic display device includes a substrate, an electrophoretic display film, a plurality of second electrodes, and a plurality of third electrodes. The electrophoretic display film is disposed on the substrate and includes a display medium layer and a first electrode. The second electrodes and the third electrodes are disposed on the substrate and located between the display medium layer and the substrate. A first voltage received by each of the second electrodes is controlled by a corresponding thin-film transistor. The third electrodes and the second electrodes are alternately disposed in a direction. The first voltage is different from a second voltage received by the third electrodes.
    Type: Application
    Filed: July 8, 2021
    Publication date: February 24, 2022
    Applicant: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Pei-Lin Tien, I-Shin Lo, Chi-Mao Hung
  • Publication number: 20220057689
    Abstract: An electrophoretic display device, including a substrate, a first conductive layer, multiple insulating patterns, a second conductive layer, an adhesive layer, and an electrophoretic display film, is provided. The first conductive layer is disposed on the substrate, and includes multiple background patterns and multiple signal lines. Each of the signal lines is located between two adjacent background patterns. Each of the insulating patterns covers each of the signal lines and bridges to the two adjacent background patterns. The second conductive layer includes multiple conductive patterns. Each of the conductive patterns covers the each of the insulating patterns and bridges to the two adjacent background patterns. The adhesive layer is disposed on and in direct contact with the background pattern and the second conductive layer. The electrophoretic display film is disposed above the adhesive layer.
    Type: Application
    Filed: July 8, 2021
    Publication date: February 24, 2022
    Applicant: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Pei-Lin Tien, I-Shin Lo, Chi-Mao Hung
  • Publication number: 20220013073
    Abstract: An e-paper display device, including an e-paper display panel and a driver circuit, is provided. The driver circuit is coupled to the e-paper display panel and drives the e-paper display panel to display one or more line segments, which include a current display line segment and a target display line segment. During a frame period, the driver circuit pre-drives a display area to display a first color according to the current display line segment. At least part of the target display line segment is located in the display area. During a next frame period, the driver circuit drives a part of the display area excluding the target display line segment to display a second color and a part of the display area including the target display line segment to display the first color according to the target display line segment. A method for driving an e-paper display panel is provided.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 13, 2022
    Applicant: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Shu-Cheng Liu, Pei-Lin Tien, Chi-Mao Hung
  • Publication number: 20210398495
    Abstract: An E-paper display device including an E-paper display panel and a display driver is provided. The E-paper display panel displays an image. The image includes a first frame and a second frame. The display driver is coupled to the E-paper display panel. The display driver drives the E-paper display panel to display the image. The display driver drives a first pixel group of the E-paper display panel in a first polarity and drives a second pixel group of the E-paper display panel in a second polarity to display the first frame during a first frame period. The first pixel group and the second pixel group are arranged in interlacing. The display driver drives the second pixel group of the E-paper display panel in the first polarity to display the second frame during a second frame period. Moreover, a method for driving an E-paper display panel is also provided.
    Type: Application
    Filed: June 11, 2021
    Publication date: December 23, 2021
    Applicant: E Ink Holdings Inc.
    Inventors: Shu-Cheng Liu, Hsiao-Lung Cheng, Pei-Lin Tien, Chi-Mao Hung
  • Patent number: 11183100
    Abstract: A timing controller circuit of an electronic paper display apparatus including an image processing circuit and a timing controller is provided. The image processing circuit receives an image signal and analyzes the image signal according to a signal component of the image signal, so as to determine a display mode of the electronic paper display apparatus. The image processing circuit selects a driving signal waveform according to the determined display mode. The timing controller is electrically connected to the image processing circuit. The timing controller outputs the selected driving signal waveform to drive an electronic paper display panel of the electronic paper display apparatus to display image frames.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: November 23, 2021
    Assignee: E Ink Holdings Inc.
    Inventors: Shu-Cheng Liu, Pei-Lin Tien, Chi-Mao Hung
  • Patent number: 11074873
    Abstract: A display device and a display driving method are provided. The display device includes a display panel and a timing controller. A timing controller is configured to drive the display panel. A memory is configured to store previous image data. The timing controller sequentially receives a plurality of current image data during an image update period, and compares the plurality of current image data to the previous image data to sequentially generate a plurality of driving signals. The timing controller sequentially outputs the plurality of driving signals to the display panel during the screen update period to update a display screen of the display panel.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: July 27, 2021
    Assignee: E Ink Holdings Inc.
    Inventors: Shu-Cheng Liu, Hsiao-Lung Cheng, Pei-Lin Tien, Chi-Mao Hung
  • Patent number: 10901287
    Abstract: The present invention provides driving methods for electrophoretic color display devices. The backplane system used for the driving methods is found to be simpler which renders color display devices more cost effective. More specifically, the driving method comprises first driving all pixels towards a color state by modulating only the common electrode, followed by driving all pixels towards their desired color states by maintaining the common electrode grounded and applying different voltages to the pixel electrodes.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: January 26, 2021
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Chi-Mao Hung
  • Patent number: 10824290
    Abstract: A touch sensor configured to sense a touch object is provided. The touch sensor includes a sensing device and a sensing circuit. The sensing device includes a substrate, a sensing electrode, a sensing common electrode and a shielding layer. The sensing electrode and the sensing common electrode are disposed on the substrate. The shielding layer is disposed on the sensing electrode and the sensing common electrode. The sensing circuit is electrically connected to the sensing device. The sensing circuit includes a resistor device. A relaxation frequency of a relaxation signal of the touch sensor is determined according to a resistance of the resistor device and/or a parasitic resistance of the sensing device. A pulse difference of the relaxation signal is changed by the touch object. The touch object is a conductor. An electronic paper display panel including the foregoing touch sensor is also provided.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: November 3, 2020
    Assignee: E Ink Holdings Inc.
    Inventors: Hsiao-Lung Cheng, Shu-Fen Tsai, Chi-Mao Hung, Kuang-Heng Liang