84‐1: Invited Paper: 30‐inch 4K Rollable OLED Display

Abstract

In this work, we report 30‐inch 4K rollable AMOLED display, featuring IGZO‐TFT backplane and side by side evaporation process with etching fine metal mask. Adaptive temporal aperture control is used to improve motion image quality. Roll‐up mechanics have various parts to get its flatness, quietness and stability. Finally, we demonstrate a large rollable display, showing motion images clearly and rolling up compact with a radius of 20 mm.

Opportunities for cost-effective manufacturing of fully printed high performance displays enabled by vertical light-emitting transistor pixels

“…While more mature and completely commoditized LCD displays still holds the majority share of mid to large size panels, AMOLED has successfully captured a majority of the small size display panel market (smartphones and watches) and is making inroads into the mid (laptop) and large size (TV) display territory [14][15][16]. Currently AMOLED displays represent the high-end display panels due to several comparative advantages, including higher contrast, quicker response time, wider viewing angle, and a thinner and flexible form factor, all of which help AMOLED panels enjoy a high profit margin [17][18][19]. However, as the production scale-up continues and more panel makers master the AMOLED manufacturing process, the competition will intensify and the profit margins for AMOLED panel production will begin to decline [20].…”