13.3L: Late‐News Paper: Roll‐to‐Roll Processed and Top‐Gate‐Structured Amorphous InGaZnO TFTs with Large Source/Drain Offsets

Abstract

In this article, we described a roll-to-roll (R2R)

Advanced Top-Down Fabrication Process of A-IGZO TFT for Roll-to-Roll Backplane

“…Since the ASAIL process in this study is a self-aligned process, no separate alignment is necessary and therefore the pattern size change during the imprint process is not a problem. According to the literature, a typical TFT fabrication process using a R2R photolithography has been reported to produce misalignment of 5∼10 μm at each process step [6]. Furthermore, when considering the mechanical deformation of the plastic substrates such as PI, PEN, or PET, the alignment error is expected to be about 100 μm when the substrate width is 100 mm.…”

Bezel free design of organic light emitting diode display via a‐InGaZnO gate driver circuit integration within active array

“…[1][2][3][4] Among them, amorphous oxide thin-film transistor (TFT) has attracted attention recently due to its superior electrical mobility, lower power consumption, transparency, and large-area application. [5][6][7][8] Despite these advantages, residual issues needed to be solved have remained such as leakage current at zero gate-source bias, electrical, and photo reliability. 1,3,7 To overcome these issues, we have proposed several GIP schemes and successfully developed and produced large-area OLED display with oxide backplane.…”

“…For the long history of display, several research and technological development of conventional GIP have been performed . Among them, amorphous oxide thin‐film transistor (TFT) has attracted attention recently due to its superior electrical mobility, lower power consumption, transparency, and large‐area application . Despite these advantages, residual issues needed to be solved have remained such as leakage current at zero gate‐source bias, electrical, and photo reliability .…”

P‐13.3: The Analysis and Improvement of Dim Dark Line Caused By Vth Drift in AMOLED Full Contact Test

“…The oxide TFT has attracted more and more attention because of its higher mobility comparing to amorphous Si TFT and better uniformity comparing to polycrystalline Si TFTs [1][2][3][4], and the oxide TFT has been used in AMOLED television backplane popularly [5]. Because of the higher mobility of oxide TFT, current change caused by slight variation of Vth will lead obvious display abnormal in AMOLED panel.…”