Display device and method for manufacturing display device
A display device according to an embodiment includes a transistor positioned on a substrate; a first electrode electrically connected to the transistor; an emission layer positioned on the first electrode; a second electrode positioned on the emission layer; and a pattern part spaced apart from the first electrode. The pattern part includes a photosensitive pattern layer made of a photosensitive resin.
1 . A display device comprising:
a transistor positioned on a substrate;
a first electrode electrically connected to the transistor;
an emission layer positioned on the first electrode;
a second electrode positioned on the emission layer; and
a pattern part spaced apart from the first electrode,
wherein the pattern part includes an electrode pattern layer that is made of a same material and positioned on a same layer as the first electrode, and a photosensitive pattern layer made of a photosensitive resin,
wherein the photosensitive pattern layer is positioned directly on the electrode pattern layer, and
wherein a side surface of the electrode pattern layer is vertically aligned with a side surface of the photosensitive pattern layer, wherein
the electrode pattern layer is electrically isolated from the first electrode and the second electrode.
2 . The display device of claim 1 , wherein the photosensitive pattern layer has a different material from a material of a bank layer defining a pixel opening on the first electrode.
3 . The display device of claim 1 , further comprising:
a bank layer positioned on an edge of the first electrode, wherein
the pattern part further includes an inorganic pattern layer, and
the inorganic pattern layer and the bank layer are made of a same material and positioned on a same layer.
4 . The display device of claim 3 , wherein the photosensitive pattern layer is positioned directly on the inorganic pattern layer.
5 . The display device of claim 4 , wherein the pattern part is separated from the bank layer.
6 . The display device of claim 1 , wherein a side of the photosensitive pattern layer has a reversed taper shape.
7 . The display device of claim 1 , wherein
the substrate includes a plurality of pixels, and
the pattern part is positioned between the plurality of pixels.
8 . The display device of claim 7 , wherein
each of the plurality of pixels is a polygon including a side extending in a first direction and a side extending in a second direction perpendicular to the first direction in a plan view, and
the pattern part is formed with a bar shape extending in the first direction or the second direction in a plan view.
9 . The display device of claim 8 , wherein at least one pattern part is positioned between adjacent ones of the plurality of pixels.
10 . The display device of claim 1 , wherein the emission layer includes:
a plurality of light emission parts; and
a charge generation layer positioned between the plurality of light emission parts.
11 . The display device of claim 10 , wherein
the emission layer and the second electrode are positioned entirely on the substrate, and
a portion of the emission layer and the second electrode positioned over the first electrode is separated from a portion of the emission layer and the second electrode positioned over the pattern part.
12 . The display device of claim 1 , wherein
the display device has:
a display area;
an opening area positioned within the display area; and
a peripheral area positioned between the opening area and the display area,
the display device further includes:
a dam positioned in the peripheral area; and
an auxiliary pattern part positioned around the dam and spaced apart from the dam, and
the auxiliary pattern part includes a photosensitive auxiliary pattern layer made of a photosensitive resin.
13 . The display device of claim 12 , wherein the photosensitive auxiliary pattern layer and the photosensitive pattern layer are made of a same material and positioned on a same layer.