Patents by Inventor Wing-Kai Tang

Wing-Kai Tang 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: 20230079469
    Abstract: A method for driving a touch panel includes applying a touch driving signal to the touch panel for touch sensing, wherein an amplitude of the touch driving signal rises and falls gradually.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 16, 2023
    Applicant: NOVATEK Microelectronics Corp.
    Inventors: Tsen-Wei Chang, Wing-Kai Tang, Shih-Chi Lin
  • Patent number: 11120722
    Abstract: A data transmission method applied in a display, which includes a display panel, is provided. The data transmission method includes the following steps of: providing a host controller and n display drivers, n is a natural number greater than 1; providing a communication link under mobile industry processor interface (MIPI), connecting the host controller to the n display drivers; determining n virtual channel values Vc1-Vcn corresponding to the respective n display drivers; employing the host controller for providing a command with a virtual channel parameter through the communication link under MIPI; when the virtual channel parameter corresponds to an ith virtual channel values Vci, an ith display driver executing corresponding operations in response to the command, while the rest n?1 display drivers ignoring the command, wherein i is a natural number smaller than or equal to n.
    Type: Grant
    Filed: October 27, 2019
    Date of Patent: September 14, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Po-Chuan Chang-Chian, Chun-Yi Chou, Wing-Kai Tang, Ching-Chun Lin, Chih-Wei Tang
  • Patent number: 11086426
    Abstract: An apparatus for driving a touch display panel is provided. The touch display panel has a plurality of data lines and a plurality of sensing lines. The apparatus includes a first device, a second device and a touch controller. The first device includes a plurality of touch sensing channels configured to sense the first portion of the sensing lines. The second device includes a plurality of touch sensing channels configured to sense the second portion of the sensing lines. The touch controller receives respective touch information from the first device and the second device. The respective touch information includes a first touch information corresponding to the first portion of the sensing lines and a second touch information corresponding to the second portion of the sensing lines. The touch controller determines a touch event of the touch display panel according to the first touch information and the second touch information.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: August 10, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventor: Wing-Kai Tang
  • Publication number: 20200058244
    Abstract: A data transmission method applied in a display, which includes a display panel, is provided. The data transmission method includes the following steps of: providing a host controller and n display drivers, n is a natural number greater than 1; providing a communication link under mobile industry processor interface (MIPI), connecting the host controller to the n display drivers; determining n virtual channel values Vc1-Vcn corresponding to the respective n display drivers; employing the host controller for providing a command with a virtual channel parameter through the communication link under MIPI; when the virtual channel parameter corresponds to an ith virtual channel values Vci, an ith display driver executing corresponding operations in response to the command, while the rest n?1 display drivers ignoring the command, wherein i is a natural number smaller than or equal to n.
    Type: Application
    Filed: October 27, 2019
    Publication date: February 20, 2020
    Applicant: Novatek Microelectronics Corp.
    Inventors: Po-Chuan Chang-Chian, Chun-Yi Chou, Wing-Kai Tang, Ching-Chun Lin, Chih-Wei Tang
  • Patent number: 10515576
    Abstract: A data transmission method applied in a display, which includes a display panel, is provided. The data transmission method includes the following steps of: providing a host controller and n display drivers, n is a natural number greater than 1; providing a communication link under mobile industry processor interface (MIPI), connecting the host controller to the n display drivers; determining n virtual channel values Vc1-Vcn corresponding to the respective n display drivers; employing the host controller for providing a command with a virtual channel parameter through the communication link under MIPI; when the virtual channel parameter corresponds to an ith virtual channel values Vci, an ith display driver executing corresponding operations in response to the command, while the rest n?1 display drivers ignoring the command, wherein i is a natural number smaller than or equal to n.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: December 24, 2019
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Po-Chuan Chang-Chian, Chun-Yi Chou, Wing-Kai Tang, Ching-Chun Lin, Chih-Wei Tang
  • Publication number: 20190354218
    Abstract: An apparatus for driving a touch display panel is provided. The touch display panel has a plurality of data lines and a plurality of sensing lines. The apparatus includes a first device, a second device and a touch controller. The first device includes a plurality of touch sensing channels configured to sense the first portion of the sensing lines. The second device includes a plurality of touch sensing channels configured to sense the second portion of the sensing lines. The touch controller receives respective touch information from the first device and the second device. The respective touch information includes a first touch information corresponding to the first portion of the sensing lines and a second touch information corresponding to the second portion of the sensing lines. The touch controller determines a touch event of the touch display panel according to the first touch information and the second touch information.
    Type: Application
    Filed: April 16, 2019
    Publication date: November 21, 2019
    Applicant: Novatek Microelectronics Corp.
    Inventor: Wing-Kai Tang
  • Patent number: 9817525
    Abstract: The touch panel includes a plurality of touch pads arranged in an array on the touch panel. Each of the touch pads are arranged in N columns and M rows, the touch pad in the ith column and in the jth row is coupled to the touch pad in the (i?1)th column and in the (j?1)th row and the touch pad in the (i+1)th column and in the (j+1)th row, or the touch pad in the ith column and in the jth row is coupled to the touch pad in the (i+1)th column and in the (j?1)th row and the touch pad in the (i?1)th column and in the (j+1)th row.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: November 14, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: Shih-Jung Lu, Wing-Kai Tang
  • Patent number: 9814133
    Abstract: A touch panel module including a touch panel and an electrostatic discharge (ESD) protection circuit is provided. The touch panel includes one or more conductive electrodes and one or more dummy electrodes. The one or more conductive electrodes include at least one of one or more driving electrodes and one or more sensing electrodes. The one or more dummy electrodes are configured to fill areas between the one or more conductive electrodes or areas outside the one or more conductive electrodes. The ESD protection circuit is electrically connected to at least one dummy electrode of the one or more dummy electrodes, and configured to provide an electrostatic discharging path to the at least one dummy electrode. Furthermore, an electrostatic discharging method of the touch panel module is also provided.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: November 7, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: He-Wei Huang, Chih-Chang Lai, Wing-Kai Tang, Ching-Yang Pai
  • Patent number: 9489166
    Abstract: A data transmission method applied in a display, which includes a display panel, is provided. The data transmission method includes the following steps of: providing a host controller and n display drivers, n is a natural number greater than 1; providing a communication link under mobile industry processor interface (MIPI), connecting the host controller to the n display drivers; determining n virtual channel values Vc1-Vcn corresponding to the respective n display drivers; employing the host controller for providing a command with a virtual channel parameter through the communication link under MIPI; when the virtual channel parameter corresponds to an ith virtual channel values Vci, an ith display driver executing corresponding operations in response to the command, while the rest n?1 display drivers ignoring the command, wherein i is a natural number smaller than or equal to n.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: November 8, 2016
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Po-Chuan Chang-Chian, Chun-Yi Chou, Wing-Kai Tang, Ching-Chun Lin, Kai-I Dai, Shu-Wei Chang, Chih-Wei Tang
  • Patent number: 9471190
    Abstract: A touch panel module including a touch panel area and a non-touch panel area is provided. The touch panel module includes a touch panel. The touch panel is located in the touch panel area. The touch panel senses a touch gesture by using a plurality of first and second sensing electrodes. At least one part of the first sensing electrodes is located in the non-touch panel area. Another one part of the first sensing electrodes and a whole of the second sensing electrodes are located in the touch panel area. The touch gesture touches the touch panel module to generate a touch area. A touch position corresponding to the touch gesture on the touch panel is determined based on a ratio of an area of the first sensing electrodes touched by the touch gesture and the touch area.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: October 18, 2016
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chih-Chang Lai, Yun-Hsiang Yeh, Shih-Jung Lu, Wing-Kai Tang, Han-Chang Lin
  • Publication number: 20160202809
    Abstract: A touch sensing device includes first dimensional transparent electrodes and second dimensional transparent electrodes for forming a plurality of touch sensing points; signal generators for generating at least two orthogonal signals simultaneously coupled to at least two of the first dimensional transparent electrodes; analog to digital converters for receiving a plurality of sensing signals from the second dimensional transparent electrodes; and calculating units, for converting the plurality of sensing signals, to determine components of the at least two orthogonal signals in the plurality of sensing signals and locate at least one touch point on the plurality of touch sensing points, wherein the at least two orthogonal signals are at least two sinusoidal signals having respective frequencies that are not integer times of each other, or at least two periodic signals with a same frequency and a phase difference of 90 degree.
    Type: Application
    Filed: March 23, 2016
    Publication date: July 14, 2016
    Inventor: Wing-Kai Tang
  • Patent number: 9335842
    Abstract: A touch panel and a display apparatus are provided. The touch panel includes a substrate, first sensing lines, second sensing lines, first extending portions, second extending portions, and insulation pads. The first sensing lines are disposed on the substrate in parallel with a first direction. The second sensing lines are disposed on the substrate in parallel with a second direction. The first sensing lines intersect the second sensing lines to define meshes. The first extending portions are connected to the first sensing lines and extended toward the meshes. The second extending portions are connected to the second sensing lines and extended toward the meshes. The first extending portions and the second extending portions are distributed next to each other in the meshes. The insulation pads are disposed at where the first sensing lines intersect the second sensing lines to insulate the first sensing lines from the second sensing lines.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: May 10, 2016
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jiun-Jie Tsai, Tsen-Wei Chang, Yu-Tsung Lu, Hao-Jan Huang, Ching-Chun Lin, Wing-Kai Tang
  • Publication number: 20160026294
    Abstract: A touch panel and a method of arranging electrodes thereof are provided. The touch panel includes a plurality of touch patterns. The touch patterns are arranged in an array and respectively include a first transmitter electrode, a second transmitter electrode, and a plurality of receiver electrodes. The second transmitter electrode is parallel to the first transmitter electrode. The receiver electrodes are disposed between the first transmitter electrode and the second transmitter electrode and are respectively adjacent to the first transmitter electrode and the second transmitter electrode. The first transmitter electrode, the second transmitter electrode, and the receiver electrodes do not overlap each other. The first transmitter electrodes of the touch patterns are not connected with each other. The second transmitter electrodes of the touch patterns are not connected with each other.
    Type: Application
    Filed: March 27, 2015
    Publication date: January 28, 2016
    Inventors: Wing-Kai Tang, Chih-Chang Lai, Ching-Yang Pai
  • Patent number: 9189110
    Abstract: A sensing and driving apparatus suitable for a sensing interface is provided. The sensing and driving apparatus includes a driving module and a sensing unit. The driving module outputs a first reference signal and a second reference signal which have different polarities with each other, and respectively transmits the first reference signal and the second reference signal to a first driving line and a second driving line of the sensing interface so as to generate a first sensing signal during a first period. The sensing unit receives the first sensing signal and detects a change of the first signal so as to generate a sensing result. A sensing and driving method, a touch sensing system and a device using the same are also provided herein.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: November 17, 2015
    Assignee: Novatek Microelectronics Corp.
    Inventors: Ching-Chun Lin, Wing-Kai Tang, Ching-Ho Hung, Tsen-Wei Chang, Yi-Liang Lin, Jiun-Jie Tsai
  • Publication number: 20150309604
    Abstract: A touch panel module including a touch panel area and a non-touch panel area is provided. The touch panel module includes a touch panel. The touch panel is located in the touch panel area. The touch panel senses a touch gesture by using a plurality of first and second sensing electrodes. At least one part of the first sensing electrodes is located in the non-touch panel area. Another one part of the first sensing electrodes and a whole of the second sensing electrodes are located in the touch panel area. The touch gesture touches the touch panel module to generate a touch area. A touch position corresponding to the touch gesture on the touch panel is determined based on a ratio of an area of the first sensing electrodes touched by the touch gesture and the touch area.
    Type: Application
    Filed: December 2, 2014
    Publication date: October 29, 2015
    Inventors: Chih-Chang Lai, Yun-Hsiang Yeh, Shih-Jung Lu, Wing-Kai Tang, Han-Chang Lin
  • Publication number: 20150309625
    Abstract: A touch panel module including a touch panel and an electrostatic discharge (ESD) protection circuit is provided. The touch panel includes one or more conductive electrodes and one or more dummy electrodes. The one or more conductive electrodes include at least one of one or more driving electrodes and one or more sensing electrodes. The one or more dummy electrodes are configured to fill areas between the one or more conductive electrodes or areas outside the one or more conductive electrodes. The ESD protection circuit is electrically connected to at least one dummy electrode of the one or more dummy electrodes, and configured to provide an electrostatic discharging path to the at least one dummy electrode. Furthermore, an electrostatic discharging method of the touch panel module is also provided.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 29, 2015
    Inventors: He-Wei Huang, Chih-Chang Lai, Wing-Kai Tang, Ching-Yang Pai
  • Patent number: 9153188
    Abstract: A driving apparatus of a display is disclosed. The driving apparatus includes a digital-to-analog converter (DAC) circuit, an output buffer circuit and a pre-charge circuit. The DAC circuit receives a display data with a digital format for generating a gray level voltage. The output buffer circuit is coupled to the DAC circuit, and has an output terminal to output an output signal. The output buffer circuit receives the gray level voltage and the output signal, and compares the gray level voltage and the output signal to generate a comparison result. The pre-charge circuit is coupled to the output buffer circuit, and generates a pre-charge output signal to the output terminal of the output buffer circuit according to the comparison result and a pre-charge enable signal.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 6, 2015
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jin-Sheng Hsieh, Hsueh-Yi Lee, Wing-Kai Tang
  • Patent number: 9084368
    Abstract: A single flexible printed circuit (FPC) board for connecting multiple modules including a thin film is provided. The thin film has a first module connecting portion, a second module connecting portion and a third module connecting portion. The first module connecting portion is located on a first side of the thin film. The second module connecting portion and the third module connecting portion are located on a second side of the thin film. The first side is opposite to the second side. At least one first line is disposed between the first module connecting portion and the second module connecting portion. At least one second line is disposed between the first module connecting portion and the third module connecting portion.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: July 14, 2015
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Jiun-Jie Tsai, Ching-Chun Lin, Tsen-Wei Chang, Yu-Tsung Lu, Tzu-Jen Lo, Hao-Jan Huang, Wing-Kai Tang
  • Patent number: 9048249
    Abstract: An integrated circuit (IC) including a high-speed signal input pin, a common node, a high-speed signal output pin, and a core circuit is provided. The high-speed signal input pin and the high-speed signal output pin are disposed on a package of the IC. The common node and the core circuit are disposed in the IC. The common node is directly and electrically coupled to the high-speed signal input pin. The high-speed signal output pin is directly and electrically coupled to the common node. A high-speed signal input terminal of the core circuit is directly and electrically coupled to the common node.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: June 2, 2015
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chia-Lun Hsu, Wing-Kai Tang
  • Publication number: 20150022744
    Abstract: A single flexible printed circuit (FPC) board for connecting multiple modules including a thin film is provided. The thin film has a first module connecting portion, a second module connecting portion and a third module connecting portion. The first module connecting portion is located on a first side of the thin film. The second module connecting portion and the third module connecting portion are located on a second side of the thin film. The first side is opposite to the second side. At least one first line is disposed between the first module connecting portion and the second module connecting portion. At least one second line is disposed between the first module connecting portion and the third module connecting portion.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Jiun-Jie TSAI, Ching-Chun LIN, Tsen-Wei CHANG, Yu-Tsung LU, Tzu-Jen LO, Hao-Jan HUANG, Wing-Kai TANG