Patents by Inventor BOHUN PARK

BOHUN PARK 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: 20220149312
    Abstract: A light-emitting element may include a first electrode, a second electrode facing the first electrode, a first hole transport layer disposed above the first electrode, a first electron transport layer disposed between the first hole transport layer and the second electrode. A first light-emitting part and a second light-emitting part that emit different light may be disposed between the first hole transport layer and the first electron transport layer. The first light-emitting part may include a first blue emission layer, a second electron transport layer, a charge generation layer, and a second blue emission layer, and the first blue emission layer may be disposed above the first hole transport layer. At least one of the first electron transport layer and the second electron transport layer may be directly disposed above at least one of the first blue emission layer and the second blue emission layer.
    Type: Application
    Filed: July 13, 2021
    Publication date: May 12, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: SEOKJAE LEE, YUNJAE KIM, JUNGKYUN KIM, HYUNGU KIM, BOHUN PARK, JIN WOO PARK, JUNGJIN YANG, BUM SUK LEE, SUNHYE LEE, JAEJIN LEE
  • Publication number: 20220123061
    Abstract: A display device includes a substrate in which first and second pixel areas respectively emitting first and second light respectively having different emission wavelengths from each other are defined, a first electrode on the substrate to overlap the first and second pixel areas, a hole transport region on the first electrode to overlap the first and second pixel areas, first and second organic layers on the hole transport region to respectively overlap the first and second pixel areas, an electron transport region on the first and second organic layers to overlap the first and second pixel areas, and a second electrode on the electron transport region to overlap the first and second pixel areas. The first organic layer includes first emission layers emitting the first light and a first charge generation layer between the first emission layers, and the second organic layer includes a single second emission layer emitting the second light.
    Type: Application
    Filed: June 25, 2021
    Publication date: April 21, 2022
    Inventors: SEOKJAE LEE, YUNJAE KIM, JUNGKYUN KIM, HYUNGU KIM, BOHUN PARK, JIN WOO PARK, JUNGJIN YANG, BUM SUK LEE, SUNHYE LEE, JAEJIN LEE