Patents by Inventor Chih-Chung Liu

Chih-Chung 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: 11754884
    Abstract: A method for fast and convenient manufacture of liquid crystal display panels of different and uncommon sizes without retooling provides a first liquid crystal display panel having a first display area of a large first size. The color filter substrate is cut to make the first liquid crystal display panel into a vacuum-broken state. A sealant is coated onto the array substrate, wherein the sealant seals the liquid crystal layer and extends to a side of the color filter substrate away from the array substrate to cover part of the first display area, thereby obtaining a second liquid crystal display panel with a second display area of a second size.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: September 12, 2023
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Hui Wang, Zheng-Xia He, Yuan Xiong, Ning Fang, Chih-Chung Liu, Meng-Chieh Tai
  • Patent number: 11735581
    Abstract: An electrostatic protection structure able to discharge static electricity of either polarity from a functional circuit including signal lines includes a discharge electrode and a plurality of electrostatic protection units electrically coupled to the discharge electrode. Each electrostatic protection unit includes a first TFT and a second TFT. The first TFT includes first gate, source, and drain, the second TFT includes second gate, source, and drain. The first gate and the first drain are electrically connected to one signal line. The first source is electrically connected to the second drain, the first drain is electrically connected to the second source, the second gate is electrically connected to the discharge electrode, and the second gate is electrically connected to the second drain.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: August 22, 2023
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Sheng Xiao, Qi Xu, Tao Wang, Ya-Ke Zhang, Chih-Chung Liu, Meng-Chieh Tai
  • Patent number: 11579504
    Abstract: A thin film transistor array substrate includes an insulating substrate, a plurality of data lines, a plurality of common electrodes, and a common electrode layer. The insulating substrate defines a plurality of sub-pixel area arranged into a sub-pixel array including a plurality of rows and a plurality of columns. The plurality of data lines extend in a direction of the columns in the sub-pixel array. The plurality of common electrodes extend in the direction of the columns in the sub-pixel array. At least two of the plurality of data lines are between adjacent common electrodes of the plurality of common electrodes, and the plurality of common electrodes are applied with a same voltage. The common electrode layer is on the insulating substrate and the common electrodes are connected to different locations of the common electrode layer.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: February 14, 2023
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Yuan Xiong, Chih-Chung Liu, Qi Xu, Hui Wang, Ning Fang
  • Patent number: 11435635
    Abstract: A thin film transistor substrate allowing an increase in proportionate size of the display area includes gate driving units, signal test pads, a first function line, and a first-stage gate output signal line in a surrounding non-display area, the display area having pixels. The gate driving units include a first-stage gate driving unit with an output terminal electrically connected to one row of pixels. The first function line has a first function but can also multiplex as a connecting line between the first-stage gate output signal line and one test pad. The first-stage gate output signal line is electrically insulated from the first function line during the first function of the first function line but is electrically connected to the first function line when multiplexed.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: September 6, 2022
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Qi Xu, Ya-Ke Zhang, Sheng Xiao, Tao Wang, Chih-Chung Liu, Meng-Chieh Tai
  • Patent number: 11314134
    Abstract: A thin film transistor substrate of reduced repaired line length and capacitance includes first repairing lines, data lines and second repairing lines insulated from each other. If one of the data lines is broken, the first repairing lines is electrically coupled to the input end of the broken data line, the second repairing line is electrically coupled to the output end of the broken data line, and the first repairing is electrically coupled to the second repairing line.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: April 26, 2022
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Ning Fang, Chih-Chung Liu, Meng-Chieh Tai
  • Publication number: 20220113578
    Abstract: A thin film transistor substrate allowing an increase in proportionate size of the display area includes gate driving units, signal test pads, a first function line, and a first-stage gate output signal line in a surrounding non-display area, the display area having pixels. The gate driving units include a first-stage gate driving unit with an output terminal electrically connected to one row of pixels. The first function line has a first function but can also multiplex as a connecting line between the first-stage gate output signal line and one test pad. The first-stage gate output signal line is electrically insulated from the first function line during the first function of the first function line but is electrically connected to the first function line when multiplexed.
    Type: Application
    Filed: April 22, 2021
    Publication date: April 14, 2022
    Inventors: QI XU, YA-KE ZHANG, SHENG XIAO, TAO WANG, CHIH-CHUNG LIU, MENG-CHIEH TAI
  • Patent number: 11262628
    Abstract: A liquid crystal display panel defines a display area and a non-display surrounding the display area. The panel includes a color filter substrate and a thin film transistor array substrate opposite to the color filter substrate. The color filter substrate includes a first substrate and a black matrix on the first substrate. The black matrix is in the display area and extending to the non-display area. A gap is defined in the black matrix and in the non-display area. The gap extends to be a circle around the display area and divides the black matrix into two independent parts. The color filter substrate includes a second substrate and a metal ring on a side of the second substrate facing the thin film transistor array substrate. The metal ring surrounds the display area and aligns with the gap.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: March 1, 2022
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Guo-Dong Xu, Hui Wang, Ning Fang, Chen-Fu Mai, Chih-Chung Liu, Meng-Chieh Tai
  • Publication number: 20220057662
    Abstract: A method for fast and convenient manufacture of liquid crystal display panels of different and uncommon sizes without retooling provides a first liquid crystal display panel having a first display area of a large first size. The color filter substrate is cut to make the first liquid crystal display panel into a vacuum-broken state. A sealant is coated onto the array substrate, wherein the sealant seals the liquid crystal layer and extends to a side of the color filter substrate away from the array substrate to cover part of the first display area, thereby obtaining a second liquid crystal display panel with a second display area of a second size.
    Type: Application
    Filed: July 20, 2021
    Publication date: February 24, 2022
    Inventors: HUI WANG, ZHENG-XIA HE, YUAN XIONG, NING FANG, CHIH-CHUNG LIU, MENG-CHIEH TAI
  • Publication number: 20220052036
    Abstract: An electrostatic protection structure able to discharge static electricity of either polarity from a functional circuit including signal lines includes a discharge electrode and a plurality of electrostatic protection units electrically coupled to the discharge electrode. Each electrostatic protection unit includes a first TFT and a second TFT. The first TFT includes first gate, source, and drain, the second TFT includes second gate, source, and drain. The first gate and the first drain are electrically connected to one signal line. The first source is electrically connected to the second drain, the first drain is electrically connected to the second source, the second gate is electrically connected to the discharge electrode, and the second gate is electrically connected to the second drain.
    Type: Application
    Filed: January 26, 2021
    Publication date: February 17, 2022
    Inventors: SHENG XIAO, QI XU, TAO WANG, YA-KE ZHANG, CHIH-CHUNG LIU, MENG-CHIEH TAI
  • Publication number: 20220050347
    Abstract: A method for fast and convenient manufacture of liquid crystal display panels of different sizes without retooling provides an array substrate having a first display area of a first size. A closed-shaped sealant is coated onto the array substrate, the sealant defining a second display area of a second size, the second display area including an actual display area and an undesired display area adjacent to the actual display area and the sealant. Liquid crystals are applied in the second display area and sealing and coupling are carried out to obtain a liquid crystal cell, the liquid crystal cell being cut along an outer periphery of the sealant to obtain a working liquid crystal display panel of the desired size.
    Type: Application
    Filed: July 8, 2021
    Publication date: February 17, 2022
    Inventors: ZHENG-XIA HE, NING FANG, YUAN XIONG, HUI WANG, WEN-LIN CHEN, CHIH-CHUNG LIU
  • Publication number: 20220043289
    Abstract: A thin film transistor array substrate includes an insulating substrate, a plurality of data lines, a plurality of common electrodes, and a common electrode layer. The insulating substrate defines a plurality of sub-pixel area arranged into a sub-pixel array including a plurality of rows and a plurality of columns. The plurality of data lines extend in a direction of the columns in the sub-pixel array. The plurality of common electrodes extend in the direction of the columns in the sub-pixel array. At least two of the plurality of data lines are between adjacent common electrodes of the plurality of common electrodes, and the plurality of common electrodes are applied with a same voltage. The common electrode layer is on the insulating substrate and the common electrodes are connected to different locations of the common electrode layer.
    Type: Application
    Filed: April 1, 2021
    Publication date: February 10, 2022
    Inventors: YUAN XIONG, CHIH-CHUNG LIU, QI XU, HUI WANG, NING FANG
  • Publication number: 20220036780
    Abstract: An electrical conductivity test structure for testing an electrical conductivity of target traces in a display panel includes a controller, a first conductive layer, and a second conductive layer. The first conductive layer includes first and second traces. The at least one first trace and the at least one second trace are connected in parallel. Each first trace connects with the target trace and with the controller and each second trace connects with the target trace and with the controller. The second conductive layer connects with the first trace but is electrically insulated from the second trace. The second conductive layer transmits test signals to the first trace to test electrical conductivity between the controller and the target trace.
    Type: Application
    Filed: March 19, 2021
    Publication date: February 3, 2022
    Inventors: QI XU, RUI LI, YUAN XIONG, HUI WANG, WEN-LIN CHEN, CHIH-CHUNG LIU
  • Publication number: 20210405471
    Abstract: A liquid crystal display panel defines a display area and a non-display surrounding the display area. The panel includes a color filter substrate and a thin film transistor array substrate opposite to the color filter substrate. The color filter substrate includes a first substrate and a black matrix on the first substrate. The black matrix is in the display area and extending to the non-display area. A gap is defined in the black matrix and in the non-display area. The gap extends to be a circle around the display area and divides the black matrix into two independent parts. The color filter substrate includes a second substrate and a metal ring on a side of the second substrate facing the thin film transistor array substrate. The metal ring surrounds the display area and aligns with the gap.
    Type: Application
    Filed: August 24, 2020
    Publication date: December 30, 2021
    Inventors: GUO-DONG XU, HUI WANG, NING FANG, CHEN-FU MAI, CHIH-CHUNG LIU, MENG-CHIEH TAI
  • Publication number: 20210325743
    Abstract: A method for repairing a white defect of a LCD panel includes providing a substrate, the substrate defining pixel areas which themselves comprise a base, a first metal layer, a first insulating layer, a semi-conductor layer, an ohmic contact layer, a source electrode, a drain electrode, and a second insulating layer; forming a through hole by laser in the second insulating layer, the through hole extending through the second insulating layer and separating the drain electrode into two spaced parts; forming a third insulating. layer to cover the first conductive layers, the second insulating layer and the though hole and forming a second conductive layer by laser on the third insulating layer to couple the first conductive layer to the second conductive layer.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 21, 2021
    Inventors: YUAN XIONG, CHIH-CHUNG LIU, MING-TSUNG WANG, MENG-CHIEH TAI
  • Patent number: 11079640
    Abstract: A method for repairing a white defect of a LCD panel includes providing a substrate, the substrate defining pixel areas which themselves comprise a base, a first metal layer, a first insulating layer, a semi-conductor layer, an ohmic contact layer, a source electrode, a drain electrode, and a second insulating layer; forming a through hole by laser in the second insulating layer, the through hole extending through the second insulating layer and separating the drain electrode into two spaced parts; forming a third insulating layer to cover the first conductive layers, the second insulating layer and the though hole and forming a second conductive layer by laser on the third insulating layer to couple the first conductive layer to the second conductive layer.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: August 3, 2021
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Yuan Xiong, Chih-Chung Liu, Ming-Tsung Wang, Meng-Chieh Tai
  • Patent number: 11067861
    Abstract: A thin film transistor (TFT) substrate optimized for protection against the build up of static electricity defines a display area and a non-display area surrounding the display area. The TFT substrate includes a substrate and an electrostatic protection structure on the substrate and in the non-display area. The electrostatic protection structure includes a transparent conductive layer and a discharge metal layer on the transparent conductive layer. The discharge metal layer partially overlaps with the transparent conductive layer. The discharge metal layer is in direct contact with the transparent conductive layer. The transparent conductive layer has a width that is greater than a width of the discharge metal layer.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: July 20, 2021
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Qi Xu, Tao Wang, Sheng Xiao, Hui Wang, Chih-Chung Liu, Meng-Chieh Tai
  • Publication number: 20210132452
    Abstract: A thin film transistor substrate of reduced repaired line length and capacitance includes first repairing lines, data lines and second repairing lines insulated from each other. If one of the data lines is broken, the first repairing lines is electrically coupled to the input end of the broken data line, the second repairing line is electrically coupled to the output end of the broken data line, and the first repairing is electrically coupled to the second repairing line.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Inventors: NING FANG, CHIH-CHUNG LIU, MENG-CHIEH TAI
  • Patent number: 10928692
    Abstract: A thin film transistor substrate of reduced repaired line length and capacitance includes first repairing lines, data lines and second repairing lines insulated from each other. When one of the data lines is broken, the first repairing lines is electrically coupled to the input end of the broken data line, the second repairing line is electrically coupled to the output end of the broken data line, and the first repairing is electrically coupled to the second repairing line.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: February 23, 2021
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Ning Fang, Chih-Chung Liu, Meng-Chieh Tai
  • Patent number: 10872547
    Abstract: A gate driver with reduced voltage fluctuations driving a display device generates pulse signals shifted in a specified phase. The gate driver includes connected unit circuits. Each unit circuit includes an output terminal, input and output transistors, and a holding module. First and second control signals, alternating oppositely between high and low states, govern the two transistors. The input transistor is controlled by a first control signal and outputs a high level voltage to a first node based on a trigger signal. The output transistor outputs the shifted pulse signal synchronously with a clock control signal, based on the high level voltage of the first node. Initially, the trigger signal is low and the first and second control signals are high. The holding module outputs the low level voltage to the output terminal based on the first control signal and the second control signal.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: December 22, 2020
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Hui Wang, Ning Fang, Chih-Chung Liu, Ming-Tsung Wang, Meng-Chieh Tai
  • Patent number: 10629631
    Abstract: A display panel includes a gate integrated circuit, a number of scan lines extending from the gate integrated circuit for transmitting scan signals, a source integrated circuit, a number of data lines extending from the source integrated circuit for transmitting data signals, a number of pixel electrodes for receiving the scan signals and the data signals, and a number of transistors each electrically coupled to a corresponding scan line, a corresponding data line, and a corresponding pixel electrode. The transistors each include a gate electrode, a source electrode, and a drain electrode. The drain electrode includes an overlapping portion overlapping with the gate electrode. The gate integrated circuit transmits the scan signals along the scan lines. A size of the overlapping portion increases along a transmitting direction of the scan signal along the scan line.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: April 21, 2020
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Ming-Tsung Wang, Chih-Chung Liu, Yi-Hsiu Cheng, Wen-Qiang Yu