Patents by Inventor Kuo-Yen Chang

Kuo-Yen Chang 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: 11422296
    Abstract: A light-emitting module structure includes a substrate, a plurality of light-emitting diodes (LEDs) disposed on the substrate, and a light-guiding layer covering the light-emitting diodes. The light-guiding layer has an upper surface, the upper surface has a plurality of recesses, and the recesses are above the light-emitting diodes or between the light-emitting diodes. This light-emitting module structure can improve the brightness and uniformity of the light-emitting module.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: August 23, 2022
    Assignee: Lextar Electronics Corporation
    Inventors: Pei-Song Cai, Lung-Kuan Lai, Shih-Yu Yeh, Guan-Zhi Chen, Hong-Zhi Liu, Kuo-Yen Chang, Ching-Hua Li
  • Publication number: 20210116625
    Abstract: A light-emitting module structure includes a substrate, a plurality of light-emitting diodes (LEDs) disposed on the substrate, and a light-guiding layer covering the light-emitting diodes. The light-guiding layer has an upper surface, the upper surface has a plurality of recesses, and the recesses are above the light-emitting diodes or between the light-emitting diodes. This light-emitting module structure can improve the brightness and uniformity of the light-emitting module.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Pei-Song CAI, Lung-Kuan LAI, Shih-Yu YEH, Guan-Zhi CHEN, Hong-Zhi LIU, Kuo-Yen CHANG, Ching-Hua LI
  • Patent number: 10908344
    Abstract: A light-emitting module structure includes a substrate, a plurality of light-emitting diodes (LEDs) disposed on the substrate, and a light-guiding layer covering the light-emitting diodes. The light-guiding layer has an upper surface, the upper surface has a plurality of recesses, and the recesses are above the light-emitting diodes or between the light-emitting diodes. This light-emitting module structure can improve the brightness and uniformity of the light-emitting module.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: February 2, 2021
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Pei-Song Cai, Lung-Kuan Lai, Shih-Yu Yeh, Guan-Zhi Chen, Hong-Zhi Liu, Kuo-Yen Chang, Ching-Hua Li
  • Publication number: 20190324184
    Abstract: A light-emitting module structure includes a substrate, a plurality of light-emitting diodes (LEDs) disposed on the substrate, and a light-guiding layer covering the light-emitting diodes. The light-guiding layer has an upper surface, the upper surface has a plurality of recesses, and the recesses are above the light-emitting diodes or between the light-emitting diodes. This light-emitting module structure can improve the brightness and uniformity of the light-emitting module.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 24, 2019
    Inventors: Pei-Song CAI, Lung-Kuan LAI, Shih-Yu YEH, Guan-Zhi CHEN, Hong-Zhi LIU, Kuo-Yen CHANG, Ching-Hua LI
  • Patent number: 10388700
    Abstract: An electronic device package includes a carrying board, an electronic device, a first insulating layer, and a barrier layer. The carrying board includes a central area, an inner edge area, and an outer edge area. The inner edge area is located between the central area and the outer edge area. The electronic device is located in the central area. The first insulating layer is located on the carrying board and overlapped with the electronic device and extends from the central area to the inner edge area. The barrier layer is located on the carrying board. Here, the barrier layer includes a sidewall contact portion and an extending portion. The sidewall contact portion surrounds a side surface of the first insulating layer, and the extending portion extends from the sidewall contact portion to the outer edge area in a direction away from the first insulating layer.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: August 20, 2019
    Assignee: E Ink Holdings Inc.
    Inventors: Kuo-Yen Chang, Chia-Chun Yeh, Kuo-Hsing Cheng, Hsing-Yi Wu
  • Patent number: 10373548
    Abstract: A pixel structure includes data lines disposed along a first direction, scan lines disposed along a second direction and pixel units periodically disposed along the first and the second directions. In a first pixel unit, a first switch element is coupled to a first scan line and a first data line, the second switch element is coupled to the first scan line, and a third switch element is coupled to the first scan line. In a second pixel unit, a fourth switch element is coupled to a second scan line, the first data line and the second switch element, and a fifth switch element is electrically coupled to the second scan line and the third switch element. In a third pixel unit, a sixth switch element is coupled to a third scan line, the first data line and the fifth switch element.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: August 6, 2019
    Assignee: E Ink Holdings Inc.
    Inventors: Chia-Chun Yeh, Kuo-Hsing Cheng, Kuo-Yen Chang, Hsing-Yi Wu
  • Patent number: 10155305
    Abstract: In some embodiments, a maintenance apparatus is provided for maintaining semiconductor processing equipment. The maintenance apparatus has an articulated member having a first member with a handle engagement portion and a second member with a first tool engagement portion. The first member is rotationally coupled to the first member about an articulation axis. A first tool member in selective engagement with the first tool engagement portion of the second member.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: December 18, 2018
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Huan-Lisng Tzeng, Chia-Chi Chung, Kuo-Yen Chang
  • Publication number: 20180137802
    Abstract: A pixel structure includes data lines disposed along a first direction, scan lines disposed along a second direction and pixel units periodically disposed along the first and the second directions. In a first pixel unit, a first switch element is coupled to a first scan line and a first data line, the second switch element is coupled to the first scan line, and a third switch element is coupled to the first scan line. In a second pixel unit, a fourth switch element is coupled to a second scan line, the first data line and the second switch element, and a fifth switch element is electrically coupled to the second scan line and the third switch element. In a third pixel unit, a sixth switch element is coupled to a third scan line, the first data line and the fifth switch element.
    Type: Application
    Filed: September 20, 2017
    Publication date: May 17, 2018
    Inventors: Chia-Chun YEH, Kuo-Hsing CHENG, Kuo-Yen CHANG, Hsing-Yi WU
  • Publication number: 20180026078
    Abstract: An electronic device package includes a carrying board, an electronic device, a first insulating layer, and a barrier layer. The carrying board includes a central area, an inner edge area, and an outer edge area. The inner edge area is located between the central area and the outer edge area. The electronic device is located in the central area. The first insulating layer is located on the carrying board and overlapped with the electronic device and extends from the central area to the inner edge area. The barrier layer is located on the carrying board. Here, the barrier layer includes a sidewall contact portion and an extending portion. The sidewall contact portion surrounds a side surface of the first insulating layer, and the extending portion extends from the sidewall contact portion to the outer edge area in a direction away from the first insulating layer.
    Type: Application
    Filed: May 23, 2017
    Publication date: January 25, 2018
    Applicant: E Ink Holdings Inc.
    Inventors: Kuo-Yen Chang, Chia-Chun Yeh, Kuo-Hsing Cheng, Hsing-Yi Wu
  • Publication number: 20170282347
    Abstract: In some embodiments, a maintenance apparatus is provided for maintaining semiconductor processing equipment. The maintenance apparatus has an articulated member having a first member with a handle engagement portion and a second member with a first tool engagement portion. The first member is rotationally coupled to the first member about an articulation axis. A first tool member in selective engagement with the first tool engagement portion of the second member.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 5, 2017
    Inventors: Huan-Lisng Tzeng, Chia-Chi Chung, Kuo-Yen Chang
  • Patent number: 5496255
    Abstract: A swinging bucket centrifuge rotor having a conforming bucket seat which includes a plurality of cavities evenly spaced about its vertical axis. Each has a seat portion that with an inward profile generally following the profile of a swinging bucket, subjected to centrifugal forces. A passageway extends entirely through the rotor head and includes a slot extending radially outward from the passageway, positioned so as to bifurcate the seat portion. Located between the vertical axis and the passageway is an improved hanging mechanism that reduces the likelihood of improperly mounting a swinging bucket onto the rotor. Three embodiments of the hanging mechanism are disclosed, each of which is integrally formed with the inner wall of each cavity. The hanging mechanism is positioned so that during centrifugation, the seat portion of the rotor will bear the full centrifugal force of the bucket.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: March 5, 1996
    Assignee: Beckman Instruments, Inc.
    Inventor: Kuo-Yen Chang