Patents by Inventor Hee-Chang YANG

Hee-Chang YANG 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).

  • Exposure apparatus and exposure method using the same
    Patent number: 9733523
    Abstract: An exposure method includes loading a first substrate on a loading portion , the first substrate having a photo alignment agent which is coated on the first substrate, irradiating the first substrate by moving the first substrate in a first speed in a first direction to a working portion while loading a second substrate on the loading portion, the working portion having an ultra violet light source generating ultra violet ray to harden a photo alignment agent, simultaneously irradiating the first substrate and the second substrate by moving the first substrate and the second substrate in the first direction in the working portion, and unloading the first substrate from an unloading portion while irradiating the second substrate by moving the second substrate in the first direction in the working portion.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: August 15, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yeon-Jae Lee, Min-Soo Kim, Tae-Jin Kim, Hee-Chang Yang, Eun-Ho Jung
  • EXPOSURE APPARATUS AND EXPOSURE METHOD USING THE SAME
    Publication number: 20150194231
    Abstract: An exposure method includes loading a first substrate on a loading portion , the first substrate having a photo alignment agent which is coated on the first substrate, irradiating the first substrate by moving the first substrate in a first speed in a first direction to a working portion while loading a second substrate on the loading portion, the working portion having an ultra violet light source generating ultra violet ray to harden a photo alignment agent, simultaneously irradiating the first substrate and the second substrate by moving the first substrate and the second substrate in the first direction in the working portion, and unloading the first substrate from an unloading portion while irradiating the second substrate by moving the second substrate in the first direction in the working portion.
    Type: Application
    Filed: May 28, 2014
    Publication date: July 9, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeon-Jae LEE, Min-Soo KIM, Tae-Jin KIM, Hee-Chang YANG, Eun-Ho JUNG