We established a manufacturing process of flexible displays, adopting a transfer technology using tungsten separation layers. We performed separation with water. In this study, we describe the apparatus we built for the manufacturing process. This apparatus fabricated an 8k (7680 × 4320 effective pixels) flexible organic light-emitting diode display.

We discuss the steps for obtaining a curved touch-enabled display by using a c-axis aligned crystalline oxide semiconductor, OLEDs, a flexible-display technology, and a capacitive touch screen. This result is a side-roll display in which the front and side surfaces are a single curved surface with a 4 mm radius.

In this study, white organic electroluminescent devices with microcavity structures were developed. A flexible high‐resolution active‐matrix organic light‐emitting diode display with low power consumption using red, green, blue, and white sub‐pixels formed by a color‐filter method was fabricated. In addition, a side‐roll touch display was developed in combination with a capacitive flexible touch screen.

A flexible OLED lighting demonstrating over 130 lm/W by combining a highly efficient OLED and a light outcoupling film has been developed. Furthermore, a prototype 360 × 300‐mm flexible OLED lighting was successfully fabricated by using transfer technology.

We established a fabrication process of flexible displays, adopting a transfer technology using an inorganic tungsten‐separation‐layer. Our separation process requires physical force and water. Tungsten oxide over tungsten in the separation layer plays a key role in separation: water injection into the tungsten oxide reduces the force necessary for separation. In this study, we describe the apparatus we built for the fabrication process of flexible displays. This apparatus fabricated an 8k (7680 × 4320 effective pixels) flexible organic light‐emitting diode display.