Display device and method of manufacturing the same
A display apparatus includes: a substrate including: pixel areas corresponding to sub-pixels, respectively, the sub-pixels including first, second, and third sub-pixels; and non-display areas surrounding the pixel areas, respectively; a first electrode on the substrate; an auxiliary electrode on the substrate, and extending to cross a non-display area between the second sub-pixel and the first sub-pixel, and a non-display area between the second sub-pixel and the third sub-pixel; a bank layer having a first bank opening overlapping with the first electrode, and a second bank opening overlapping with the auxiliary electrode; an intermediate layer on the first electrode and the auxiliary electrode, and having a first opening exposing a portion of the auxiliary electrode, and overlapping with a pattern including the auxiliary electrode; and a second electrode on the intermediate layer to overlap with the first electrode and the auxiliary electrode, and contacting the auxiliary electrode through the first opening.
1 . A display apparatus comprising:
a substrate comprising:
a plurality of pixel areas corresponding to a plurality of sub-pixels, respectively, the plurality of sub-pixels comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel configured to emit different colors of light from each other; and
a plurality of non-display areas surrounding the plurality of pixel areas, respectively;
a first electrode on the substrate;
an auxiliary electrode on the substrate, and extending to cross a non-display area from among the plurality of non-display areas between the second sub-pixel and the first sub-pixel, and a non-display area from among the plurality of non-display areas between the second sub-pixel and the third sub-pixel;
a bank layer having a first bank opening overlapping with the first electrode, and a second bank opening overlapping with the auxiliary electrode;
an intermediate layer on the first electrode and the auxiliary electrode, and having a first opening exposing a portion of the auxiliary electrode and overlapping with a pattern including the auxiliary electrode; and
a second electrode on the intermediate layer to overlap with the first electrode and the auxiliary electrode, and contacting the auxiliary electrode through the first opening in the intermediate layer,
wherein the second bank opening of the bank layer and the first opening of the intermediate layer overlap with each other, and each has a shape that extends along the pattern including the auxiliary electrode.
2 . The display apparatus of claim 1 , wherein the first sub-pixel and the third sub-pixel are alternately located along a first row in a first direction,
the second sub-pixel is located along the first direction in a second row parallel to the first row, and
the second sub-pixel is alternately located with each of the first sub-pixel and the third sub-pixel.
3 . The display apparatus of claim 1 , wherein the pattern including the auxiliary electrode extends in a first direction in a zigzag pattern in a plan view, and
wherein the first opening has a straight line shape in a plan view that extends along the pattern including the auxiliary electrode.
4 . The display apparatus of claim 1 , wherein the pattern including the auxiliary electrode extends in a first direction in a zigzag pattern in a plan view, and
wherein the first opening has a hole shape exposing a portion of the pattern including the auxiliary electrode.
5 . The display apparatus of claim 1 , wherein the pattern including the auxiliary electrode extends in a straight line shape in parallel with a diagonal direction in which the first sub-pixel and the second sub-pixel are alternately located in a plan view, and
wherein the first opening has a straight line shape in a plan view extending along the pattern including the auxiliary electrode.
6 . The display apparatus of claim 1 , wherein the pattern including the auxiliary electrode extends in a straight line shape in parallel with a diagonal direction in which the first sub-pixel and the second sub-pixel are alternately located in a plan view, and
wherein the first opening has a hole shape exposing a portion of the pattern including the auxiliary electrode.
7 . The display apparatus of claim 5 , wherein each of the plurality of sub-pixels comprises a thin-film transistor,
the first electrode comprises a first connection portion extending to include a contact hole region electrically connected to the thin-film transistor, and
the first connection portion extends in a direction parallel with the pattern including the auxiliary electrode.
8 . The display apparatus of claim 1 , wherein the pattern including the auxiliary electrode extends in a mesh pattern in a plan view.
9 . The display apparatus of claim 8 , wherein each of the plurality of sub-pixels comprises a thin-film transistor,
the first electrode comprises a first connection portion extending to include a contact hole region electrically connected to the thin-film transistor, and
the first connection portion extends in a direction towards a corner portion crossing the auxiliary electrode.
10 . The display apparatus of claim 1 , wherein the plurality of sub-pixels are located on vertices of a virtual quadrangle having the first opening as a center.
11 . The display apparatus of claim 1 , wherein the auxiliary electrode comprises a same material as that of the first electrode.
12 . The display apparatus of claim 1 , wherein each of the plurality of sub-pixels comprises a thin-film transistor, and
wherein the auxiliary electrode comprises a same material as that of a source electrode or a drain electrode of the thin-film transistor.
13 . The display apparatus of claim 2 , wherein the third sub-pixel comprises a greater area than those of the first sub-pixel and the second sub-pixel, and
wherein open portions of the first sub-pixel, the second sub-pixel, and the third sub-pixel are each circular in shape.
14 . The display apparatus of claim 13 , wherein the first opening is located in a non-display area from among the plurality of non-display areas between the first sub-pixel and the second sub-pixel.
15 . The display apparatus of claim 1 , further comprising:
a planar portion on the second electrode,
wherein the planar portion comprises a planar inorganic layer and a planar organic layer, and
wherein the planar inorganic layer and the planar organic layer overlap with the second bank opening and the first opening.
16 . A method of manufacturing a display apparatus, the method comprising:
forming a first electrode on a substrate, the substrate comprising:
a plurality of pixel areas corresponding to a plurality of sub-pixels, respectively, the plurality of sub-pixels comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel configured emit different colors of light from each other; and
a plurality of non-display areas surrounding the plurality of pixel areas, respectively;
forming, on the substrate, an auxiliary electrode extending to cross a non-display area from among the plurality of non-display areas between the second sub-pixel and the first sub-pixel, and a non-display area from among the plurality of non-display areas between the second sub-pixel and the third sub-pixel;
forming a bank layer having a first bank opening overlapping with the first electrode, and a second bank opening overlapping with the auxiliary electrode;
forming, on the first electrode and the auxiliary electrode, an intermediate layer having a first opening exposing a portion of the auxiliary electrode and overlapping with a pattern including the auxiliary electrode; and
forming a second electrode overlapping with the first electrode and the auxiliary electrode, and contacting the auxiliary electrode through the first opening in the intermediate layer,
wherein the second bank opening of the bank layer and the first opening of the intermediate layer overlap with each other, and each has a shape that extends along the pattern including the auxiliary electrode.
17 . The method of claim 16 , wherein the intermediate layer is formed after the first bank opening and the second bank opening are formed in the bank layer.
18 . The method of claim 17 , wherein the first opening in the intermediate layer is formed by irradiating a laser beam onto the intermediate layer to expose a portion of the auxiliary electrode.
19 . The method of claim 16 , wherein, after the bank layer and the intermediate layer are consecutively deposited, the second bank opening and the first opening are concurrently formed with each other.
20 . The method of claim 19 , wherein the forming of the second bank opening and the first opening comprises irradiating a laser beam onto the bank layer and the intermediate layer to expose a portion of the auxiliary electrode.