74.2L: Late‐News Paper: 11.7‐inch Flexible AMOLED Display Driven by a‐IGZO TFTs on Plastic Substrate

Abstract

Threshold voltage shifts of a-IGZO TFTs on plastics against biastemperature stress were successfully reduced below 0.03 V, equivalent to those on glass substrates. We have developed an 11.7inch qHD (960×RGB×540) flexible bottom-emission active-matrix organic light-emitting diode (AMOLED) driven by a-IGZO TFT backplane fabricated on a transparent polyimide film.

Metal oxide semiconductor thin-film transistors for flexible electronics

“…Given the recent progresses achieved in the large-area integration of flexible devices, a relevant part of the review has focused on circuits, as well as on systems based on metal oxide semiconductor TFTs. Examples of novel large-area flexible electronic systems include flexible, textile-integrated, rollable and/or foldable optical displays, 39,40,127,158,175,176,203,214,310,316,[346][347][348][349][350][351][352] flexible and/or stretchable systems for temperature, 343 pH, 166,185 and x-ray sensing, 322,355,356 wireless power transmission, 81,315 as well as non-volatile storage and NFC transmission of data. 136,167,204,315 Despite the advances that flexible metal oxide semiconductor TFTs have witnessed in the last decade, there are still some bottlenecks that prevent the commercialization of this technology in new areas of application beyond optical displays.…”

A 5.5‐inch full HD foldable AMOLED display based on neutral‐plane splitting concept

“…The mobile device displays must also satisfy other specifications such as high‐resolution, low‐power consumption, light weight, thinness, durability, and flexible design. OLED displays are very promising because they have simple structures without backlight units and realize excellent image quality …”

Recent Trends on Transparent Colorless Polyimides with Balanced Thermal and Optical Properties: Design and Synthesis

“…But, perhaps, optical transparency at very high processing temperature is arguably the primary requirement. As an example, in the fabrication of flexible active matrix organic light emitting display devices (AMOLEDs), the processing temperature on the flexible polymer film substrates could be higher than 300 °C …”