Patents by Inventor Bulong Wu

Bulong Wu 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).

  • Publication number: 20240373721
    Abstract: An electronic device may have a display overlapped by a display cover layer. Portions of the surface of the display and cover layer may have curved profiles. For example, a display cover layer may have transparent sidewall portions with curved surface profiles. The transparent sidewall portions of the display cover layer may include rounded corners having areas of compound curvature. A flexible display panel may be pressed over a mold to impart desired curvature (such as compound curvature) to the flexible display panel. To mitigate wrinkling in a flexible display panel molded to have compound curvature, a backfilm may be included that absorbs compressive strains in the display panel. The backfilm may have a coefficient of thermal expansion that is higher than that of the display panel. Instead or in addition, the backfilm may have portions with different Young's modulus magnitudes or different thickness magnitudes.
    Type: Application
    Filed: May 10, 2022
    Publication date: November 7, 2024
    Inventors: Bulong Wu, Zhen Zhang, Paul S Drzaic, Yong Sun, Izhar Z Ahmed, Kuan H Lu, Han-Chieh Chang, Mingjing Ha, Yung-Yu Hsu
  • Publication number: 20240170471
    Abstract: Display structures and methods of assembly are described. In an embodiment, a display structure includes a display panel including a pattern of trenches extending at least partially through a backplane of the display panel, without extending past a matrix of LEDs in an overlying emission layer stack. The plurality of trenches can be formed in 2D to facilitate bending of the display panel into a 3D film curvature.
    Type: Application
    Filed: March 22, 2022
    Publication date: May 23, 2024
    Inventors: Zhen Zhang, Kapil V. Sakariya, Waldemar J. Siskens, Han-Chieh Chang, Xia Li, Yong Sun, Izhar Z. Ahmed, Bulong Wu
  • Patent number: 11889647
    Abstract: An electronic device includes a housing that defines an aperture, and a display assembly positioned in the aperture. The display assembly can include a display layer having a first portion, and a second portion bending at least partially below the first portion. The first portion and the second portion can define a bend volume, and a potting material can be disposed in the bend volume, such that the potting material contacts the first portion and the second portion. An internal enclosure can be contoured to the display assembly.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: January 30, 2024
    Assignee: APPLE INC.
    Inventors: Izhar Z. Ahmed, John J. Baker, Bulong Wu, Daniel W. Jarvis, Douglas G. Fournier, Eric W. Bates, Hao Dong, Isabel S Gueble, Jason C. Law, Jingjing Xu, Kikue S. Burnham, Paul U. Leutheuser, Sarah Trabia, Sawyer I. Cohen, Shaorui Yang, Shaowei Qin, Siddharth Avachat, Yaocheng Zhang, Ying-Chih Wang, Zhen Zhang, Benjamin R. Pope
  • Publication number: 20230409082
    Abstract: An electronic device may have a display overlapped by a display cover layer. Portions of the surface of the display and cover layer may have curved profiles. For example, a display cover layer may have transparent sidewall portions with curved surface profiles. The transparent sidewall portions of the display cover layer may include rounded corners having areas of compound curvature. A flexible display panel may be pressed over a mold to impart desired curvature (such as compound curvature) to the flexible display panel. To mitigate wrinkling in a flexible display panel molded to have compound curvature, a film may be included that absorbs force in the display panel. The film may have a coefficient of thermal expansion that is different than that of the display panel. Instead or in addition, the film may have portions with different Young's modulus magnitudes or different thickness magnitudes.
    Type: Application
    Filed: March 15, 2023
    Publication date: December 21, 2023
    Inventors: Bulong Wu, Zhen Zhang, Paul S. Drzaic, Yong Sun, Izhar Z. Ahmed, Kuan H. Lu, Han-Chieh Chang, Mingjing Ha, Yung-Yu Hsu
  • Patent number: 11599145
    Abstract: An electronic device display may have pixels formed from crystalline semiconductor light-emitting diode dies, organic light-emitting diodes, or other pixel structures. The pixels may be formed in a display panel having a single substrate or an array of display panel tiles. The display panel has inwardly facing display panel contacts that mate with corresponding outwardly facing interconnect substrate contacts on an interconnect substrate. The interconnect substrate may have areas with compound curvature that are overlapped by the display panel. To enhance flexibility of the interconnect substrate, the interconnect substrate may have flexibility enhancement openings and/or may be formed from a material with a low elastic modulus such as silicone or other elastomeric material.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: March 7, 2023
    Assignee: Apple Inc.
    Inventors: Mingjing Ha, Kuan H. Lu, Paul S. Drzaic, Yung-Yu Hsu, Yong Sun, Zhen Zhang, Bulong Wu, Marc J. DeVincentis, Paolo Sacchetto, Han-Chieh Chang, Anshi Liang
  • Publication number: 20220061179
    Abstract: An electronic device includes a housing that defines an aperture, and a display assembly positioned in the aperture. The display assembly can include a display layer having a first portion, and a second portion bending at least partially below the first portion. The first portion and the second portion can define a bend volume, and a potting material can be disposed in the bend volume, such that the potting material contacts the first portion and the second portion. An internal enclosure can be contoured to the display assembly.
    Type: Application
    Filed: August 19, 2020
    Publication date: February 24, 2022
    Inventors: Izhar Z. Ahmed, John J. Baker, Bulong Wu, Daniel W. Jarvis, Douglas G. Fournier, Eric W. Bates, Hao Dong, Isabel S. Gueble, Jason C. Law, Jingjing Xu, Kikue S. Burnham, Paul U. Leutheuser, Sarah Trabia, Sawyer I. Cohen, Shaorui Yang, Shaowei Qin, Siddharth Avachat, Yaocheng Zhang, Ying-Chih Wang, Zhen Zhang, Benjamin R. Pope
  • Publication number: 20210318715
    Abstract: An electronic device display may have pixels formed from crystalline semiconductor light-emitting diode dies, organic light-emitting diodes, or other pixel structures. The pixels may be formed in a display panel having a single substrate or an array of display panel tiles. The display panel has inwardly facing display panel contacts that mate with corresponding outwardly facing interconnect substrate contacts on an interconnect substrate. The interconnect substrate may have areas with compound curvature that are overlapped by the display panel. To enhance flexibility of the interconnect substrate, the interconnect substrate may have flexibility enhancement openings and/or may be formed from a material with a low elastic modulus such as silicone or other elastomeric material.
    Type: Application
    Filed: February 18, 2021
    Publication date: October 14, 2021
    Inventors: Mingjing Ha, Kuan H. Lu, Paul S. Drzaic, Yung-Yu Hsu, Yong Sun, Zhen Zhang, Bulong Wu, Marc J. DeVincentis, Paolo Sacchetto, Han-Chieh Chang, Anshi Liang