Display devices
A display device includes a substrate, a thin film transistor provided on the substrate, a first electrode connected to the thin film transistor, a second electrode overlapping the first electrode, and a partition wall and a light-emitting device layer provided between the first electrode and the second electrode. The partition wall may include a main chain and a side chain connected to the main chain, and a carbon number of the side chain may be equal to or greater than 14.
1. A display device, comprising:
a substrate;
a thin film transistor provided on the substrate;
a first electrode connected to the thin film transistor;
a second electrode overlapping the first electrode; and
a partition wall and a light-emitting device layer provided between the first electrode and the second electrode, wherein:
the partition wall includes:
a main chain that is a polyimide-based polymer; and
a side chain connected to the main chain, and
the side chain is a moiety having a carbon number equal to or greater than 14.
2. The display device as claimed in claim 1 , wherein the main chain is a reaction product of a dianhydride compound and a diamine compound.
3. The display device as claimed in claim 1 , wherein the main chain is a reaction product of at least one compound from among Formulae 1-1 to 1-6 and at least one compound from among Formulae 2-1 to 2-6:
4. The display device as claimed in claim 1 , wherein the side chain includes fluorine.
5. The display device as claimed in claim 1 , wherein:
the partition wall further includes an addition product of an additive including fluorine, and
the additive includes at least one reactive group from among an acryl group, a methacryl group, an epoxy group, or a maleimide group that may react with the main chain.
6. The display device as claimed in claim 5 , wherein the additive is connected in a side chain form to the main chain.
7. The display device as claimed in claim 1 , wherein:
the partition wall further includes an addition product of an additive including fluorine, and
the additive is one or more of Formulae 3-1 to 3-6:
wherein m1 and n1 are independently an integer that is equal to or less than 30, n2 is an integer of 1 to 30, m3 and n3 are independently an integer that is equal to or less than 30, and n4 is an integer of 1 to 30.
8. The display device as claimed in claim 1 , wherein the side chain is provided by a compound represented by Formula 4:
wherein the X is one of
and
l is equal to or greater than 13.
9. The display device as claimed in claim 1 , wherein the partition wall further includes a reaction product of one or more of an initiator, a crosslinking agent, a photoactive compound, or a surfactant.
10. A display device, comprising:
a substrate;
a thin film transistor provided on the substrate;
a first electrode connected to the thin film transistor;
a second electrode overlapping the first electrode; and
a partition wall and a light-emitting device layer provided between the first electrode and the second electrode, wherein:
the partition wall includes:
a main chain that is a polyimide-based polymer; and
a side chain connected to the main chain,
the side chain is a moiety that includes fluorine, and
a carbon number of the side chain is equal to or greater than 8.
11. The display device as claimed in claim 10 , wherein the side chain includes a number of fluorine atoms that is equal to or greater than 8.
12. The display device as claimed in claim 10 , wherein the side chain is provided by one or more of Formulae 5-1 to 5-5:
wherein,
m1 and n1 are independently an integer that is equal to or less than 30,
n2 is an integer of 5 to 30,
m3 and n3 are independently an integer that is equal to or less than 30, provided that a sum of the m3 and n3 is equal to or greater than 2,
n4 is an integer of 6 to 30,
n5 is equal to or greater than 7, and
X is one of
13. The display device as claimed in claim 10 , wherein the main chain is a reaction product of a dianhydride compound and a diamine compound.
14. The display device as claimed in claim 10 , wherein the main chain is a reaction product of at least one compound from among Formulae 1-1 to 1-6 and at least one compound from among Formulae 2-1 to 2-6:
15. The display device as claimed in claim 10 , wherein:
the partition wall further includes an addition product of an additive including fluorine, and
the additive includes at least one reactive group from among an acryl group, a methacryl group, an epoxy group, or a maleimide group that may react with the main chain.
16. The display device as claimed in claim 15 , wherein the additive is connected in a side chain form to the main chain.
17. The display device as claimed in claim 10 , wherein:
the partition wall further includes an addition product of an additive including fluorine, and
the additive is one of Formulae 3-1 to 3-6:
wherein:
m1 and n1 are independently an integer that is equal to or less than 30,
n2 is an integer of 1 to 30,
m3 and n3 are independently an integer that is equal to or less than 30, and
n4 is an integer of 1 to 30.
18. The display device as claimed in claim 10 , wherein the partition wall further includes a reaction product of one or more of an initiator, a crosslinking agent, a photoactive compound, or a surfactant.
19. The display device of claim 1 , wherein
the light-emitting device layer further includes an emission layer, and the emission layer includes a quantum dot material.
20. The display device of claim 10 , wherein
the light-emitting device layer further includes an emission layer, and the emission layer includes a quantum dot material.