Display device

A display device comprising:

• a backlight unit providing light having a predetermined luminance;
• a transparent substrate facing the backlight unit;
• a gate line disposed on the transparent substrate, wherein the gate line includes a gate line pad positioned at an end of the gate line and a gate electrode protruding upwardly from the gate line;
• a gate insulating layer, having a barrier layer, disposed on the gate line and the transparent substrate;
• a semiconductor layer disposed on the gate insulating layer,
• wherein the barrier layer blocks carriers injected from the gate electrode to the gate insulating layer from forming traps at an interface between the gate electrode and the semiconductor layer.

A display device comprising:

• a display panel accepting light,
• wherein the display panel includes
• a substrate,
• a gate electrode disposed on the substrate,
• a gate insulating layer disposed on the gate electrode and the substrate, and
• a semiconductor layer disposed on the gate insulating layer,
• wherein a barrier layer is inserted is the gate insulating layer, the barrier layer has larger band gap energy than the gate insulating layer, and
• wherein the light provided to the display panel has luminance of equal to or more than 800 nit.