Toward the realization of a Bendable Display: Extending the Lifetime using an Inverted-Structure Organic EL Device

摘要

For viewers to enjoy "8K Super Hi-Vision" images on a large-screen TV even at home, flexible organic EL* displays-which are easy to carry into homes and install in various rooms as well as being thin, light, and bendable- are expected to be put to practical use. This kind of display is fabricated using a plastic film as the substrate. However, when a glass substrate is replaced with a film, oxygen and moisture in the atmosphere, which cause the deterioration of organic EL devices, are more likely to be incorporated in these devices, leading to the deterioration and darkening of the display over time. To overcome this problem, at NHK's STRL, we are developing organic EL devices that are resistant to oxygen and moisture.