Korea’s Electronics and Telecommunications Research Institute (ETRI) announced on April 11 it has developed transparent electrodes for organic light-emitting diode (OLED) displays by using grapheme.
ETRI succeeded in developing electrodes for OLED panels jointly with Hanwha Techwin by using grapheme, which is called a “dream material,” instead of indium tin oxide (ITO) that has been widely used to make transparent electrodes for OLED panels.
The panel that the team has developed is the largest OLED panel in the world with 370 millimeters in length and 470 mm in width. The thickness of the team’s graphene electrode is less than 5 nanometers.
The panels are expected to be applied for producing smart devices like smart watch in the future, which need flexibility.
The ETRI also developed a process for the micro patterning absolutely necessary for the processing of displays, jointly with Hanwha Techwin.