AU Optronics (AUO) Corp exhibited a prototyped 32-inch TV equipped with IGZO (In-Ga-Zn-O) TFT-driven OLED panel at FPD International 2011, which took place from Oct 26 to 28, 2011, in Yokohama, Japan.
It is one of the largest IGZO TFT-driven OLED panels. IGZO is an oxide semiconductor.
The pixel count, brightness and contrast ratio of the new panel are 1,920 x 1,080, 200cd/m2 and 100,000:1, respectively. It has a 72% color gamut on NTSC standards, a response speed of 0.01ms and a thickness of 3mm.
AUO declined to disclose the structure, manufacturing process and carrier mobility of the IGZO TFT. The device structure of the OLED element is a bottom emission type. The OLED materials for red, green and blue colors were applied in a deposition process by using a metal mask.