Patents by Inventor Chang YING-LAN

Chang YING-LAN 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).

  • Process for fabricating an optoelectronic device including photoluminescent pads of photoresist
    Patent number: 11171267
    Abstract: The invention relates to a method for producing an optoelectronic device (1) including a matrix array of light-emitting diodes (4) and a plurality of photoluminescent pads (61, 62, 63 . . . ) that are each located facing at least some of said light-emitting diodes (4), including the following steps: forming said plurality of photoluminescent pads (61, 62, 63 . . . ) by photolithography from at least one photoresist (51, 52, 53 . . . ) containing photoluminescent particles, said photoresist having been deposited beforehand on a supporting surface (3; 3?); forming reflective walls (101, 102, 103 . . . ) covering lateral flanks (81, 82, 83 . . . ) of said photoluminescent pads (61, 62, 63 . . . ) by deposition of at least one thin-layer section (91, 92, 93 . . . ) on the lateral flanks.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 9, 2021
    Assignee: ALEDIA
    Inventors: Eric Pourquier, Philippe Gilet, Chang Ying-Lan
  • PROCESS FOR FABRICATING AN OPTOELECTRONIC DEVICE INCLUDING PHOTOLUMINESCENT PADS OF PHOTORESIST
    Publication number: 20190334064
    Abstract: The invention relates to a method for producing an optoelectronic device (1) including a matrix array of light-emitting diodes (4) and a plurality of photoluminescent pads (61, 62, 63 . . . ) that are each located facing at least some of said light-emitting diodes (4), including the following steps: forming said plurality of photoluminescent pads (61, 62, 63 . . . ) by photolithography from at least one photoresist (51, 52, 53 . . . ) containing photoluminescent particles, said photoresist having been deposited beforehand on a supporting surface (3; 3?); forming reflective walls (101, 102, 103 . . . ) covering lateral flanks (81, 82, 83 . . . ) of said photoluminescent pads (61, 62, 63 . . . ) by deposition of at least one thin-layer section (91, 92, 93 . . . ) on the lateral flanks.
    Type: Application
    Filed: December 22, 2017
    Publication date: October 31, 2019
    Inventors: Eric POURQUIER, Philippe GILET, Chang YING-LAN