Substrate for inkjet printing and method of manufacturing the same
View Patent ↗A substrate for inkjet printing, which includes a photoresist layer structure on a base substrate, and a method of manufacturing the same are provided. The substrate, which has high surface tension variation and slight thickness variation, may be manufactured at a low cost. The substrate includes a discontinuous organic layer structure made of a fluorinated hydrocarbon or a polysiloxane on the photoresist layer structure.
1. A substrate for inkjet printing, comprising:
a base substrate;
a discontinuous photoresist layer structure formed on a surface of the base substrate; and
a discontinuous organic layer structure formed on a portion of the photoresist layer structure,
wherein the discontinuous organic layer structure has a lower surface tension with respect to an inkjet printing solution than the discontinuous photoresist layer structure.
2. The substrate of claim 1 , wherein the discontinuous organic layer structure covers the photoresist layer structure.
3. The substrate of claim 1 , wherein a surface tension variation between the discontinuous photoresist layer structure and the discontinuous organic layer structure ranges from about 10 mN/m to about 90 mN/m.
4. The substrate of claim 3 , wherein the discontinuous photoresist layer structure has a surface tension ranging from about 50 mN/m to about 100 mN/m.
5. The substrate of claim 3 , wherein the discontinuous organic layer structure has a surface tension ranging from about 10 mN/m to about 40 mN/m.
6. The substrate of claim 1 , further comprising an intermediate layer formed on the base substrate.
7. The substrate of claim 6 , wherein the intermediate layer is made of indium tin oxide.
8. The substrate of claim 6 , wherein the intermediate layer has a surface tension ranging from about 50 mN/m to about 100 mN/m.
9. A substrate for inkjet printing, comprising:
a base substrate;
an intermediate layer made of indium tin oxide and formed on the base substrate;
a discontinuous photoresist layer structure formed on a portion of the base substrate and a portion of the intermediate layer; and
a discontinuous organic layer structure formed on a portion of the photoresist layer structure,
wherein the discontinuous organic layer structure has a lower surface tension with respect to an inkjet printing solution than the discontinuous photoresist layer structure, and
wherein the discontinuous organic layer structure is made of a fluorinated hydrocarbon or polysiloxane.
10. The substrate of claim 9 , wherein the fluorinated hydrocarbon is polytetrafluoro ethylene.
11. The substrate 9 , wherein the base substrate is made of at least one of glass, silicon, or a synthetic material.
12. The substrate of claim 9 , wherein the discontinuous photoresist layer structure is made of at least one of novolak, an acrylic lacquer, an epoxy lacquer, or a polyimide lacquer.
13. The substrate of claim 9 , wherein a surface of the discontinuous photoresist layer structure, on which the discontinuous organic layer structure is not formed, contacts the substrate to define an active surface of the substrate.
14. The substrate of claim 13 , wherein the active surface of the substrate has a size of about 50 μm by 200 μm and is spaced about 100 μm from an adjacent active surface.
15. An electroluminescence display device, comprising:
a base substrate;
a discontinuous photoresist layer structure formed on a surface of the base substrate; and
a discontinuous organic layer structure formed on a portion of the photoresist layer structure,
wherein the discontinuous organic layer structure has a lower surface tension with respect to an inkjet printing solution than the discontinuous photoresist layer structure.
16. The substrate of claim 1 , wherein the discontinuous organic layer structure is made of a polysiloxane.