Color conversion substrate, display device and method of manufacturing color conversion substrate
A color conversion substrate includes: a bank defining a first opening area and a second opening area; a conversion part disposed in the first opening area and including a color conversion particle; and a partition wall disposed in the second opening area and dividing the second opening area into a plurality of sub-opening areas.
1 . A color conversion substrate comprising:
a bank defining a first opening area and a second opening area;
a conversion part disposed in the first opening area, but not disposed in the second opening area, and including a color conversion particle; and
a partition wall disposed in the second opening area and dividing the second opening area into a plurality of sub-opening areas,
wherein each of the plurality of sub-opening areas has a volume smaller than a volume of the first opening area.
2 . The color conversion substrate of claim 1 , wherein the partition wall includes a same material as the bank.
3 . The color conversion substrate of claim 1 , wherein the second opening area is adjacent to a first surface of the first opening area.
4 . The color conversion substrate of claim 1 , wherein the partition wall has a shape of one of a straight shape, a curved shape, and a bent shape.
5 . The color conversion substrate of claim 1 , wherein the partition wall includes a first partition wall and a second partition wall.
6 . The color conversion substrate of claim 5 , wherein the first partition wall and the second partition wall have straight shapes and
wherein the first partition wall and the second partition wall extend in a first direction, and are spaced apart from each other in a second direction perpendicular to the first direction.
7 . The color conversion substrate of claim 5 , wherein the first partition wall and the second partition wall have straight shapes, and
wherein the first partition wall and the second partition wall cross each other.
8 . The color conversion substrate of claim 5 , wherein the first partition wall and the second partition wall have curved shapes, and
wherein the first partition wall is adjacent to a first surface of the second opening area, and the second partition wall is adjacent to a second surface opposite to the first surface.
9 . The color conversion substrate of claim 1 , wherein the partition wall is arranged in a lattice structure.
10 . The color conversion substrate of claim 1 , further comprising:
a spacer disposed on the bank.
11 . The color conversion substrate of claim 10 , wherein a portion of the bank disposed between the first opening area and the second opening area has a width smaller than a width of the spacer.
12 . The color conversion substrate of claim 10 , wherein the partition wall has a width smaller than a width of the spacer.
13 . A display device comprising:
a color conversion substrate including a bank, a color conversion unit and a partition wall, wherein the bank defines a first opening area and a second opening area, the color conversion unit is disposed in the first opening area and includes a color conversion particle, and the partition wall is disposed in the second opening area and divides the second opening area into a plurality of sub-opening areas; and
an array substrate coupled to the color conversion substrate, and including a light emitting diode which provides a light to the color conversion substrate,
wherein each of the plurality of sub-opening areas has a volume smaller than a volume of the first opening area.
14 . The display device of claim 13 , wherein the partition wall includes a first partition wall and a second partition wall,
wherein the first partition wall and the second partition wall have straight shapes, and
wherein the first partition wall and the second partition wall extend in a first direction, and are spaced apart from each other in a second direction perpendicular to the first direction.
15 . The display device of claim 13 , further comprising:
a spacer disposed on the bank, and
wherein a portion of the bank disposed between the first opening area and the second opening area has a width smaller than a width of the spacer.
16 . The display device of claim 15 , wherein the partition wall has a width smaller than the width of the spacer.
17 . A method of manufacturing a color conversion substrate, the method comprising:
forming a bank with a partition wall, wherein the bank defines a first opening area and a second opening area adjacent to the first opening area, the partition wall is disposed in the second opening area and divides the second opening area into a plurality of sub-opening areas;
providing an ink in the first opening area, but not in the second opening area; and
forming a color conversion unit by curing the ink,
wherein each of the plurality of sub-opening areas has a volume smaller than a volume of the first opening area.
18 . The method of claim 17 , wherein the partition wall includes a first partition wall and a second partition wall, and
wherein the first partition wall and the second partition wall each has a shape of one of a straight shape, a curved shape, and a bent shape.
19 . The method of claim 17 , wherein the color conversion unit is formed by an inkjet process.
20 . The method of claim 17 , further comprising:
forming a spacer on the bank,
wherein a width of a portion of the bank formed between the first opening area and the second opening area is smaller than a width of the spacer.