Patent ID: 11895887
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 3:
4. A display device comprising:
a substrate including a display area and a non-display area;
a first metal pattern located on the substrate in the non-display area;
a display element layer disposed on the substrate and including a plurality of display elements in the display area;
a dam disposed between the display area and the first metal pattern;
wherein the first metal pattern includes a first surface facing the substrate, a second surface opposite to the first surface and a side surface disposed between the first surface of the first metal pattern and the second surface of the first metal pattern,
wherein the first metal pattern has a triple layer structure comprising a first layer, a second layer and a third layer,
wherein the first layer, the second layer and the third layer are sequentially stacked,
wherein the first layer and the third layer are formed of Ti,
wherein the second layer is formed of Al,
wherein the first metal pattern has a line shape in a plan view,
wherein the first metal pattern is disposed along an edge of the non-display area, and
wherein an end portion of the third layer is protruded outwardly more than a portion of an end portion of the second layer in a cross-sectional view,
wherein the display element layer comprises:
a thin-film transistor located on the substrate in the display area, the thin-film transistor including a semiconductor layer, a gate electrode, a source electrode and a drain electrode;
an insulating layer located on the thin-film transistor;
a pixel defining layer located on the insulating layer and comprising an opening;
a first electrode located on the insulating layer, electrically connected to the thin-film transistor and at least partially exposed through the opening;
a light emitting layer located on the first electrode; and
a second electrode located on the light emitting layer,
wherein the first metal pattern is made of the same material as the source electrode or the drain electrode of the thin-film transistor; and
a second metal pattern adjacent to the first metal pattern on the substrate in the non-display area.