Patents by Inventor Keng-Chuan Cheng

Keng-Chuan Cheng 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: 10784288
    Abstract: A display panel has a display region, an external circuit region located at an edge of the display panel, and a first and second wiring regions. The first wiring region is located between the second wiring region and the external circuit region. The display panel includes a pixel array, gate driving circuit groups disposed between the second wiring region and the display region, first signal line groups extended from the external circuit region to the first and second wiring region, and second signal line groups extended from the second wiring region and connected to the corresponding gate driving circuit groups. In the second wiring region, a first portion of the first signal line groups overlapped with the second signal line groups has a first width, and a second portion thereof not overlapped with the second signal line groups has a third width which is larger than the first width.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: September 22, 2020
    Assignee: Au Optronics Corporation
    Inventors: Che-Wei Tung, Wei-Li Lin, Keng-Chuan Cheng
  • Publication number: 20190393246
    Abstract: A display panel has a display region, an external circuit region located at an edge of the display panel, and a first and second wiring regions. The first wiring region is located between the second wiring region and the external circuit region. The display panel includes a pixel array, gate driving circuit groups disposed between the second wiring region and the display region, first signal line groups extended from the external circuit region to the first and second wiring region, and second signal line groups extended from the second wiring region and connected to the corresponding gate driving circuit groups. In the second wiring region, a first portion of the first signal line groups overlapped with the second signal line groups has a first width, and a second portion thereof not overlapped with the second signal line groups has a third width which is larger than the first width.
    Type: Application
    Filed: November 16, 2018
    Publication date: December 26, 2019
    Applicant: Au Optronics Corporation
    Inventors: Che-Wei Tung, Wei-Li Lin, Keng-Chuan Cheng
  • Patent number: 9989821
    Abstract: A display substrate structure includes a substrate, at least one chip, and a plurality of conductive lines. A display region and a periphery region are defined on the substrate. The periphery region is disposed around the display region, and the chip is disposed in the periphery region. The conductive lines are disposed in the periphery region and at least between the chip and the display region. Each conductive line has a fan-out portion and at least one adjustment portion. Each adjustment portion is electrically connected to the fan-out portion of the same conductive line. The adjustment portion of each conductive line has a winding wire, and at least one of the adjustment portions of the conductive lines has a straight wire, which is electrically connected to and at least partially overlaps the winding wire of the same conductive line.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: June 5, 2018
    Assignee: AU OPTRONICS CORP.
    Inventors: Keng-Chuan Cheng, Chien-Hao Fu, Chien-Ju Lin
  • Publication number: 20150216045
    Abstract: A display substrate structure includes a substrate, at least one chip, and a plurality of conductive lines. A display region and a periphery region are defined on the substrate. The periphery region is disposed around the display region, and the chip is disposed in the periphery region. The conductive lines are disposed in the periphery region and at least between the chip and the display region. Each conductive line has a fan-out portion and at least one adjustment portion. Each adjustment portion is electrically connected to the fan-out portion of the same conductive line. The adjustment portion of each conductive line has a winding wire, and at least one of the adjustment portions of the conductive lines has a straight wire, which is electrically connected to and at least partially overlaps the winding wire of the same conductive line.
    Type: Application
    Filed: January 22, 2015
    Publication date: July 30, 2015
    Inventors: Keng-Chuan Cheng, Chien-Hao Fu, Chien-Ju Lin
  • Publication number: 20120319623
    Abstract: A display panel having a display region and a non-display region is described. The display panel includes a pixel array, at least one driving device and a plurality of lead lines. The pixel array is disposed in the display region. The driving device is disposed in the non-display region. The lead lines are disposed in the non-display region and are electrically connected to the pixel array and the driving device. The lead lines are arranged into at least one fan-out structure between the pixel array and the driving device. In particular, the (n-1)th lead line has a pitch Pn-1=Wn-1+S, n is an integer larger than 1, Wn-1 represents a line width of the (n-1)th lead line, S represents a space between the adjacent lead lines, and the pitches P1˜Pn-1 of the plurality of lead lines are not completely the same.
    Type: Application
    Filed: December 7, 2011
    Publication date: December 20, 2012
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Keng-Chuan Cheng, Chien-Hao Fu