Patents by Inventor Won-ju Choi

Won-ju Choi 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).

  • Display device
    Patent number: 11329250
    Abstract: A display device includes: a display panel including a front surface and a rear surface, the rear side being opposite to the front side; a front stacked structure on the front surface including a front bonding member disposed on the front surface; and a rear stacked structure on the rear surface including a rear bonding member disposed on the rear surface. A loss tangent of the front bonding member has a value greater than a loss tangent of the rear bonding member, the loss tangent being represented by an equation: (loss tangent)=(loss modulus)/(storage modulus), wherein the loss modulus refers to energy lost by viscosity of a material, and the storage modulus refers to energy stored without loss by elasticity of the material.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: May 10, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju Hee Song, Sang Hyo Park, Byoung Su Lee, Tae Hyeog Jung, Won Ju Choi
  • DISPLAY DEVICE
    Publication number: 20210036259
    Abstract: A display device includes: a display panel including a front surface and a rear surface, the rear side being opposite to the front side; a front stacked structure on the front surface including a front bonding member disposed on the front surface; and a rear stacked structure on the rear surface including a rear bonding member disposed on the rear surface. A loss tangent of the front bonding member has a value greater than a loss tangent of the rear bonding member, the loss tangent being represented by an equation: (loss tangent)=(loss modulus)/(storage modulus), wherein the loss modulus refers to energy lost by viscosity of a material, and the storage modulus refers to energy stored without loss by elasticity of the material.
    Type: Application
    Filed: June 29, 2020
    Publication date: February 4, 2021
    Inventors: Ju Hee SONG, Sang Hyo PARK, Byoung Su LEE, Tae Hyeog JUNG, Won Ju CHOI
  • Scheduling method and scheduling information synchronizing method in wireless ad hoc network
    Patent number: 8458266
    Abstract: A decentralized scheduling method in a wireless ad hoc network is provided which includes grouping nodes in the network cluster by cluster, determining a cluster head of each cluster, and sequentially performing scheduling cluster by cluster. Accordingly, it is possible to provide an efficient cluster-based scheduling method which quickly adapts to changes and reduces power consumption.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: June 4, 2013
    Assignees: Electronics and Telecommunications Research Institute, Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Wun-cheol Jeong, Jong-moon Chung, Won-ju Choi, Ki-yong Jin, Min-seok Kim, Seong-soon Joo, Jong-suk Chae
  • SCHEDULING METHOD AND SCHEDULING INFORMATION SYNCHRONIZING METHOD IN WIRELESS AD HOC NETWORK
    Publication number: 20100268825
    Abstract: A decentralized scheduling method in a wireless ad hoc network is provided which includes grouping nodes in the network cluster by cluster, determining a cluster head of each cluster, and sequentially performing scheduling cluster by cluster. Accordingly, it is possible to provide an efficient cluster-based scheduling method which is quickly adapt to changes and reduces power consumption.
    Type: Application
    Filed: November 27, 2009
    Publication date: October 21, 2010
    Applicants: Electronics and Telecommunications Research Institute, Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Wun-cheol JEONG, Jong-moon Chung, Won-ju Choi, Ki-yong Jin, Min-seok Kim, Seong-soon Joo, Jong-suk Chae