Patents by Inventor Jia-Liang TU

Jia-Liang TU 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: 12288831
    Abstract: A manufacturing method for a LED is disclosed. The method includes: providing a substrate with an upper surface; preparing a plurality of LEDs on the upper surface; wherein the upper surface is divided into a plurality of zones, the plurality of LEDs composes a plurality of LED groups, and each of the LED group is disposed in one of the plurality of zones; preparing a testing circuit to electrically connecting the plurality of LEDs in one of the plurality of LED groups; testing the plurality of LEDs in the one of the plurality of LED groups by the testing circuit to obtain photoelectrical characteristics of the plurality of LEDs in the one of the plurality of LED groups; and presenting the photoelectric characteristics in an image.
    Type: Grant
    Filed: December 11, 2023
    Date of Patent: April 29, 2025
    Assignee: EPISTAR CORPORATION
    Inventors: Chia-Chen Tsai, Jia-Liang Tu, Chi-Ling Lee
  • Publication number: 20240120437
    Abstract: A manufacturing method for a LED is disclosed. The method includes: providing a substrate with an upper surface; preparing a plurality of LEDs on the upper surface; wherein the upper surface is divided into a plurality of zones, the plurality of LEDs composes a plurality of LED groups, and each of the LED group is disposed in one of the plurality of zones; preparing a testing circuit to electrically connecting the plurality of LEDs in one of the plurality of LED groups; testing the plurality of LEDs in the one of the plurality of LED groups by the testing circuit to obtain photoelectrical characteristics of the plurality of LEDs in the one of the plurality of LED groups; and presenting the photoelectric characteristics in an image.
    Type: Application
    Filed: December 11, 2023
    Publication date: April 11, 2024
    Inventors: Chia-Chen TSAI, Jia-Liang TU, Chi-Ling LEE
  • Patent number: 11862751
    Abstract: A manufacturing method for an LED includes: providing a substrate having an upper surface divided into a plurality of zones; a LED group formed on each of the zones and wherein: a plurality of the LED groups includes a first LED group; and the LEDs of the first LED group include a defective LED; forming a testing circuit on the substrate to electrically connect the LEDs; testing the first LED group by the testing circuit; recording a position of the defective LED; providing a carrier; and performing one of the following steps by the position of the defective LED: removing the defective LED from the substrate and then transferring the other LEDs in the first LED group to the carrier; transferring the other LEDs other than the defective LED in the first LED group to the carrier; or transferring the LEDs to the carrier and repairing it on the carrier.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: January 2, 2024
    Assignee: EPISTAR CORPORATION
    Inventors: Chia-Chen Tsai, Jia-Liang Tu, Chi-Ling Lee
  • Publication number: 20210249558
    Abstract: A manufacturing method for an LED includes: providing a substrate having an upper surface divided into a plurality of zones; a LED group formed on each of the zones and wherein: a plurality of the LED groups includes a first LED group; and the LEDs of the first LED group include a defective LED; forming a testing circuit on the substrate to electrically connect the LEDs; testing the first LED group by the testing circuit; recording a position of the defective LED; providing a carrier; and performing one of the following steps by the position of the defective LED: removing the defective LED from the substrate and then transferring the other LEDs in the first LED group to the carrier; transferring the other LEDs other than the defective LED in the first LED group to the carrier; or transferring the LEDs to the carrier and repairing it on the carrier.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 12, 2021
    Inventors: Chia-Chen TSAI, Jia-Liang TU, Chi-Ling LEE