Ultra‐high‐resolution 1058‐ppi OLED displays with 2.78‐in size using CAAC‐IGZO FETs with tandem OLED device and single OLED device

• DOI: 10.1002/jsid.424
• Publication Date: 2016-03-21T04:22:48Z
• Authors: Kohei Yokoyama; Shinichi Hirasa; Noriko Miyairi; Yoshitaka Dozen; Toshiki Sasaki; Yasuhiro Jimbo; Kouhei Toyotaka; Makoto Kaneyasu; Hiroyuki Miyake; Satoshi Seo; Yoshiharu Hirakata; Shunpei Yamazaki; Masataka Nakada; Takahiro Sato; Naoto Goto
• Keywords: Tandem

Abstract We fabricated new 2.78‐in 1058‐ppi organic light‐emitting diode (OLED) displays. The displays used OLED devices with a tandem structure and single field effect transistor (FET) using c‐axis aligned crystalline In–Ga–Zn–O (CAAC‐IGZO) for an active layer employing the 1.5‐µm rule over glass substrate. Even in such high resolution exceeding 1000 ppi, crosstalk that was observed lower luminance region suppressed. achieved color reproducibility reduced viewing angle dependence.