Patents by Inventor Jeong-Byung Chae

Jeong-Byung Chae 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).

  • Electrowetting device and method for improving response speed of electrowetting device
    Patent number: 9291811
    Abstract: According to certain embodiments of the invention, an electrowetting device and a method for improving the response speed of an electrowetting device may be provided. The electrowetting device can includes: an electrode; an insulation film including a dielectric material that is coated over the electrode; a droplet positioned over the insulation film; and a power control unit configured to control a voltage applied to the electrode, where the power control unit reaches a particular contact angle by applying a first voltage that is higher than a second voltage corresponding to the particular contact angle, and applies the second voltage once the particular contact angle is reached. According to certain embodiments of the invention, the response speed of an electrowetting device can be improved by applying different voltages according to the contact angle of the droplet in an electrowetting device.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: March 22, 2016
    Assignee: Myongji University Industry and Academia Cooperation Foundation
    Inventors: Sang-Kug Chung, Jeong-Byung Chae, Jeong-Hyun Lee
  • ELECTROWETTING DEVICE AND METHOD FOR IMPROVING RESPONSE SPEED OF ELECTROWETTING DEVICE
    Publication number: 20150036205
    Abstract: According to certain embodiments of the invention, an electrowetting device and a method for improving the response speed of an electrowetting device may be provided. The electrowetting device can includes: an electrode; an insulation film including a dielectric material that is coated over the electrode; a droplet positioned over the insulation film; and a power control unit configured to control a voltage applied to the electrode, where the power control unit reaches a particular contact angle by applying a first voltage that is higher than a second voltage corresponding to the particular contact angle, and applies the second voltage once the particular contact angle is reached. According to certain embodiments of the invention, the response speed of an electrowetting device can be improved by applying different voltages according to the contact angle of the droplet in an electrowetting device.
    Type: Application
    Filed: April 30, 2012
    Publication date: February 5, 2015
    Applicant: Myongji University Industry and Academia Cooperation Foundation
    Inventors: Sang-Kug Chung, Jeong-Byung Chae, Jeong-Hyun Lee