Indium gallium zinc oxide

Indium gallium zinc oxide ( IGZO ), a semiconductor material that can be used as a channel for a transparent thin film transistor. It replaces amorphous silicon as an active layer in an LCD screen and allows a 40 times higher electron mobility compared to amorphous silicon both smaller pixels ( for screen resolutions higher than HDTV) as well as faster response speed for a screen.

The advantage compared to zinc oxide is that it can be deposited as a uniform amorphous phase. And this while maintaining high charge carrier mobility of the oxide semiconductor. The transistors are somewhat sensitive to light, but the effect is only in the deep violet to ultraviolet ( photon energy above 3 eV) visible range and offers the prospect of a fully transparent transistor.

Sharp announced in mid-April 2012 that the company IGZO panels (32- inch panels with resolutions of 3840 × 2160 pixels and 2560 × 1600 pixels and 10 -inch and 7- inch panels with 1280 × 800 pixels ) in high will produce numbers. Initially it was planned that the " retina displays " are equipped for the iPad 3 with an IGZO display from Sharp, but this was rejected for lack of time.

In April 2013, Sharp has first put an IGZO display in the trade. The PN should K321H over the competition bring some innovations. The IGZO display offers a 4K resolution with a total of 3840 × 2160 pixels. The screen size is 32 inches ( ≈ 80 cm). Meanwhile, Samsung IGZO displays will be produced at Sharp. A 11.6-inch IGZO display for notebooks and is scheduled to go into production before the summer.

In the early fall of 2013 DELL presented its first notebook ( a mobile workstation ) with 15.6-inch HD Quad - IGZO panel.