Display apparatus
A display apparatus includes: a first substrate; a bank on the first substrate and including partition walls defining a first well, a second well, a third well, and auxiliary wells, a first quantum dot layer in the first well; and a second quantum dot layer in the second well. The partition walls have a second width that is less than a first width. The first width is an average width of the partition walls farther away from a cross point at where three or more partition walls extending in different directions meet one another, and the second width is an average width of the partition walls at the cross point; a first quantum dot layer in the first well; and a second quantum dot layer in the second well.
1 . A display apparatus comprising:
a first substrate;
a bank on the first substrate and comprising partition walls defining a first well, a second well, a third well, and auxiliary wells, the partition walls having a second width that is less than a first width, the first width being an average width of the partition walls farther away from a cross point at where three or more partition walls extending in different directions meet one another, the second width being an average width of the partition walls at the cross point;
a first quantum dot layer in the first well; and
a second quantum dot layer in the second well.
2 . The display apparatus of claim 1 , wherein the first quantum dot layer is configured to convert light having a wavelength in a first wavelength band into light having a wavelength in a second wavelength band as it passes therethrough, and
wherein the second quantum dot layer is configured to convert light having a wavelength in the first wavelength band into light having a wavelength in a third wavelength band as it passes therethrough.
3 . The display apparatus of claim 1 , further comprising a transmissive layer in the third well through which light is transmitted without change to its wavelength.
4 . The display apparatus of claim 1 , further comprising:
a second substrate under the first substrate with the bank therebetween;
a first pixel electrode corresponding to the first well, a second pixel electrode corresponding to the second well, and a third pixel electrode corresponding to the third well, the first to third pixel electrodes being apart from one another on the second substrate;
a pixel-defining layer covering edges of each of the first pixel electrode, the second pixel electrode, and the third pixel electrode and having an opening exposing a central portion of the first pixel electrode, an opening exposing a central portion of the second pixel electrode, and an opening exposing a central portion of the third pixel electrode;
an emission layer on the first to third pixel electrodes and configured to emit light having a wavelength in a first wavelength band; and
an opposite electrode on the emission layer.
5 . The display apparatus of claim 4 , wherein the partition walls of the bank define a fourth well that, in a plan view, is apart from the first pixel electrode, the second pixel electrode, and the third pixel electrode, and
wherein each of the first to fourth wells is surrounded, in the plan view, by the auxiliary wells.