9‐4: Studies of Physical Properties and Mechanism of Films for Improving Flexibility of Flexible Display

This paper presents the latest technology of displays that have recently been expanding from Rigid to a variety of form factors that can be modified. In a flexible display, different types of films are laminated to ensure panel reliability and to control stress distribution. However, the mechanism for how the characteristics of commercialized films affect the panel has not been properly identified, and it is not easy to adjust the physical properties to find key factors. So we formed a film with various characteristics using UV curing process and found key properties that can affect flexible OLED panel through process change. We were able to confirm the results of the experiment by analyzing and supplementing simulations based on physics. Finally, based on the mechanism proposed by comparing aspects between films, panel characteristics were verified and reliable.