Display device
AssigneeSamsung Display Co., Ltd.
InventorsYoungok Park, Uikang Kim, Junggeun Lee
Life of this patent
Estimating the term…
Abstract
A display device includes a substrate, a plurality of pixel columns, and a lighting test circuit unit. The lighting test circuit unit is disposed in a non-display area on the substrate, includes a plurality of lighting test transistors, and provides a lighting test voltage to the pixel columns. Each of the lighting test transistors includes an active pattern including a source area, a drain area, and a channel area, a gate electrode disposed in the channel area, an interlayer insulating layer including a first contact hole spaced apart from a first side of the gate electrode by about 7 um or more, and a source electrode contacting the source area of the active pattern through the first contact hole.
Claims16
A display device comprising:
- a substrate including a display area and a non-display area adjacent to the display area;
- a plurality of pixel columns disposed in the display area on the substrate;
- and
- a lighting test circuit unit disposed in the non-display area on the substrate, including a plurality of lighting test transistors, and providing a lighting test voltage to the pixel columns,
- wherein each of the lighting test transistors comprises:
- an active pattern disposed in the non-display area on the substrate and including a source area, a drain area, and a channel area;
- a gate electrode disposed in the channel area on the active pattern;
- an interlayer insulating layer covering the gate electrode and including a first contact hole, wherein the first contact hole exposes a part of the source area of the active pattern and is spaced apart from a first side of the gate electrode by 7 um or more;
- and
- a source electrode contacting the source area of the active pattern through the first contact hole.
Dependencies are inferred from the claim text.