Stretchable display device
Provided is a stretchable display device. The stretchable display device includes a plurality of island substrates which defines a plurality of pixels and is spaced apart from each other, a lower substrate disposed below the plurality of island substrates and a connection line which electrically connects pads disposed on adjacent island substrates among the plurality of island substrates, wherein the upper substrate is made of a stretchable polymer material and includes a plurality of upper patterns overlapping an emission area of the plurality of island substrates and a second upper pattern in an area excluding the plurality of first upper patterns, and wherein the second upper pattern further includes a black pigment.
1. A stretchable display device, comprising:
a plurality of island substrates which defines a plurality of pixels and is spaced apart from each other;
a lower substrate disposed below the plurality of island substrates;
an upper substrate; and
a connection line which electrically connects pads disposed on adjacent island substrates among the plurality of island substrates,
wherein the upper substrate is made of a stretchable polymer material and includes a plurality of first upper patterns overlapping an emission area of the plurality of island substrates and a second upper pattern in an area excluding the plurality of first upper patterns, and
wherein the second upper pattern further includes a black pigment.
2. The stretchable display device according to claim 1 , wherein the lower substrate includes a plurality of first lower patterns overlapping the plurality of island substrates and a second lower pattern in an area excluding the plurality of lower patterns.
3. The stretchable display device according to claim 2 , wherein a modulus of the plurality of first lower patterns is larger than a modulus of the second lower pattern.
4. The stretchable display device according to claim 3 , wherein the plurality of first lower patterns is made of a same material as the plurality of island substrates.
5. The stretchable display device according to claim 1 , wherein a modulus of the plurality of first upper patterns is larger than a modulus of the second upper pattern.
6. The stretchable display device according to claim 5 , wherein the plurality of first upper patterns is made of a same material as a plurality of first lower patterns and
wherein the second upper pattern is made of a same material as a second lower pattern.
7. The stretchable display device according to claim 1 , wherein the stretchable polymer material includes polydimethylsiloxane (PDMS).
8. The stretchable display device according to claim 1 , further comprising:
a gate line, a high potential power source line, and a low potential power source line disposed above the plurality of island substrates in one direction; and
a data line disposed above the plurality of island substrates in a different direction than the one direction.
9. The stretchable display device according to claim 8 , further comprising:
a reflective layer disposed above the plurality of island substrates;
an adhesive layer disposed on the reflective layer; and
an RGB light emitting diode (LED) disposed on the adhesive layer to overlap the reflective layer.
10. The stretchable display device according to claim 9 , wherein the reflective layer is electrically connected to the low potential power source line.
11. The stretchable display device according to claim 8 , wherein the connection line is electrically connected to the low potential power source line through a contact hole or a connection pad.
12. The stretchable display device according to claim 1 , wherein the connection line includes a base polymer and conductive particles dispersed in the base polymer.
13. A stretchable display device, comprising:
a plurality of island substrates which defines a plurality of pixels and is spaced apart from each other;
a lower substrate disposed below the plurality of island substrates;
an upper substrate; and
a connection line which electrically connects pads disposed on adjacent island substrates among the plurality of island substrates,
wherein the upper substrate is made of a stretchable polymer material and includes a plurality of first upper patterns overlapping an emission area of the plurality of island substrates and a second upper pattern in an area excluding the plurality of first upper patterns, and
wherein a refractive index of the plurality of first upper patterns is larger than a refractive index of the second upper pattern,
wherein the lower substrate includes a plurality of first lower patterns overlapping the plurality of island substrates and a second lower pattern in an area excluding the plurality of first lower patterns.
14. The stretchable display device according to claim 13 , wherein a modulus of the plurality of first lower patterns is larger than a modulus of the second lower pattern.
15. The stretchable display device according to claim 13 , wherein the stretchable polymer material includes polydimethylsiloxane (PDMS).
16. The stretchable display device according to claim 13 , wherein the plurality of first upper patterns further include a first pigment, the second upper pattern further includes a second pigment, and a refractive index of the first pigment is larger than a refractive index of the second pigment.