Toshiyuki Miyadera

Flexible OLED displays using plastic substrates

Organic light-emitting diodes (OLEDs) displays using plastic substrate have many attractive features. They are ultrathin and light, in addition, it will be realized the flexible display to utilize the flexibility of the substrate. The key issue in achieving such displays is how to protect OLEDs from moisture and oxygen. We developed a barrier film on a plastic substrate and a passivation film on the OLED device itself. As a result, the device showed good emission characteristics after storage, and its characteristics were almost the same as those of a device fabricated on a glass substrate. We also developed a 3-in full-color flexible OLED display.

21.1: Invited Paper: 3-inch Full-color OLED Display using a Plastic Substrate

We developed a full-color Organic Light Emitting Diode (OLED) display on a plastic substrate. The display area is a 3- inch diagonal area with 160 × RGB × 120 pixels. Silicon oxynitride (SiON) was used as a moisture barrier film on the substrate and silicon nitride (SiN) as a passivation film on the device. The display was approximately 0.2 mm thick, weighted approximately 3 g, and it was bendable.