Display device
A display device that includes a display panel having a first substrate, a second substrate, and a light-emitting element layer. The light emitting layer is disposed between the first and second substrates and is configured to emit light in a direction toward the second substrate. A first sound generator is disposed on a first surface of the first substrate and is configured to vibrate the display panel to output a first sound. A first heat dissipation film is disposed between the first substrate and the first sound generator.
1. A display device comprising:
a display panel including a first substrate and a light-emitting element layer disposed on a first surface of the first substrate;
a first sound generator disposed on a second surface of the first substrate opposite to the first surface of the first substrate, the first sound generator configured to vibrate the display panel to output a first sound;
a first heat dissipation film between the first substrate and the first sound generator; and
a second heat dissipation film between the first dissipation film and the first sound generator.
2. The display device of claim 1 , wherein the first heat dissipation film includes a metal layer formed of graphite, silver, copper, or aluminum.
3. The display device of claim 1 , wherein the second heat dissipation film includes a metal layer formed of copper or aluminum, a ceramic layer having a piezoelectric material, or aerogel.
4. The display device of claim 1 , wherein a thickness of the second heat dissipation film is lower than a thickness of the first heat dissipation film.
5. The display device of claim 1 , wherein the first heat dissipation film is disposed on an entire of the second surface of the first substrate.
6. The display device of claim 1 , wherein the second heat dissipation film is disposed on a portion of the second surface of the first substrate.
7. The display device of claim 1 , wherein a width of the first sound generator in one direction is larger than a width of the second heat dissipation film in the one direction.
8. The display device of claim 7 , wherein a width of the first sound generator in one direction is smaller than a width of the second heat dissipation film in the one direction.
9. A display device comprising:
a display panel including a first substrate and a light-emitting element layer disposed on a first surface of the first substrate;
a first sound generator disposed on a second surface of the first substrate opposite to the first surface of the first substrate, the first sound generator configured to vibrate the display panel to output a first sound; and
a heat dissipation film between the first substrate and the first sound generator,
wherein the heat dissipation film includes:
a heat dissipation layer; and
a first vibration transmission layer disposed on a first surface of the heat dissipation layer.
10. The display device of claim 9 , wherein the first vibration transmission layer is between the heat dissipation layer and the first sound generator.
11. The display device of claim 9 , wherein the heat dissipation layer includes a metal layer formed of graphite, silver, copper, or aluminum.
12. The display device of claim 9 , wherein the first vibration transmission layer includes a polyimide.
13. The display device of claim 9 , wherein the heat dissipation layer does not overlap the first sound generator.
14. The display device of claim 9 , wherein the first sound generator includes:
a bobbin disposed on the first surface of the heat dissipation film;
a voice coil surrounding the bobbin; and
a magnet spaced apart from the bobbin, and
wherein the heat dissipation layer does not overlap the bobbin.
15. The display device of claim 14 , wherein the heat dissipation film includes a first portion which overlaps the first sound generator and a second portion which does not overlap the first sound generator, and
wherein a thickness of the first portion is lower than a thickness of the second portion.
16. The display device of claim 15 , wherein the heat dissipation film is disposed at the second portion.
17. A display device comprising:
a display panel including a first substrate and a light-emitting element layer disposed on a first surface of the first substrate;
a first sound generator disposed on a second surface of the first substrate opposite to the first surface of the first substrate, the first sound generator configured to vibrate the display panel to output a first sound;
a second sound generator disposed on the second surface of the first substrate, the second sound generator configured to vibrate the display panel to output a second sound; and
a first heat dissipation film between the first substrate and the first sound generator.
18. The display device of claim 17 , wherein the first heat dissipation film is between the first substrate and the second sound generator.
19. The display device of claim 17 , further comprising: a second heat dissipation film between the first substrate and the second sound generator.
20. A display device comprising:
a display panel including a first substrate and a light-emitting element layer disposed on a first surface of the first substrate;
a first sound generator disposed on a second surface of the first substrate opposite to the first surface of the first substrate, the first sound generator configured to vibrate the display panel to output a first sound;
a heat dissipation film between the first substrate and the first sound generator, and
wherein the heat dissipation film includes an extended portion which extends toward a side of the display panel.