Display device having improved heat radiating performance

1 . A display device comprising:

a display panel having a display region and a non-display region; and

a heat radiating member attached to the display panel,

wherein the heat radiating member includes:

a first plate facing the display panel;

a second plate configured to face the first plate and defining an inner space with the first plate; and

a phase change material in the inner space, and

wherein the inner space includes a plurality of divided spaces, and the phase change material is in the plurality of divided spaces,

wherein the plurality of divided spaces include a first divided space, a second divided space spaced apart from the first divided space in a first direction, a third divided space spaced apart from the first divided space in a second direction crossing the first direction, and a fourth divided space spaced apart from the third divided space in the first direction.

2 . The display device of claim 1 ,

wherein the phase change material includes a first phase change material in the first divided space and a second phase change material in the second divided space, and

wherein the first divided space has a larger volume than the first phase change material in a solid state, and the second divided space has a larger volume than the second phase change material in a solid state.

3 . The display device of claim 2 , wherein the heat radiating member further includes a first partition wall between the first divided space and the second divided space and configured to extend in the second direction crossing the first direction, and

wherein the first partition wall is coupled to the first plate and the second plate.

4 . The display device of claim 2 , wherein the second plate includes a first concave portion configured to define the first divided space and a second concave portion configured to define the second divided space, and a portion of the second plate between the first concave portion and the second concave portion is coupled to the first plate.

5 . The display device of claim 2 ,

wherein the phase change material further includes a third phase change material in the third divided space and a fourth phase change material in the fourth divided space, the third divided space has a larger volume than the third phase change material in a solid state, and the fourth divided space has a larger volume than the fourth phase change material in a solid state.

6 . The display device of claim 2 , wherein a width of the first divided space in the first direction is smaller than a width of the first divided space in a second direction crossing the first direction.

7 . The display device of claim 1 , wherein an entire region of the display region overlaps the inner space in a plan view.

8 . The display device of claim 1 , wherein the plurality of divided spaces are completely separated from each other.

9 . The display device of claim 1 , wherein the plurality of divided spaces are connected together and divided by a shape of the second plate.

10 . The display device of claim 1 , wherein the first plate has a flat shape, and the second plate has a curved shape.

11 . The display device of claim 1 , wherein a distance between the first plate and the second plate is the same in all regions.

12 . The display device of claim 1 , wherein a distance between the first plate and the second plate is a first distance at a first point and a second distance greater than the first distance at a second point spaced apart from the first point.

13 . The display device of claim 1 , wherein the display panel has a curved shape, the first plate has a curved shape with a first curvature, and the second plate has a curved shape with a second curvature greater than the first curvature.

14 . The display device of claim 1 , wherein a first protrusion configured to protrude in a direction away from the first plate is defined on the second plate, and the phase change material is accommodated in the first protrusion.

15 . A display device comprising:

a display panel having a display region and a non-display region; and

a heat radiating member attached to the display panel,

wherein the heat radiating member includes:

a first plate facing the display panel;

a second plate configured to face the first plate and defining an inner space with the first plate; and

a phase change material in the inner space, and

wherein the inner space includes a plurality of divided spaces, and the phase change material is in the plurality of divided spaces,

wherein a first protrusion configured to protrude in a direction away from the first plate is defined on the second plate, and the phase change material is accommodated in the first protrusion,

wherein when viewed along a thickness direction of the display panel, the first protrusion includes a first side and a second side spaced apart from the first side in a first direction, and the first side and the second side extend in a second direction crossing the first direction, and

wherein a first length of the first side in the second direction is greater than a second length of the second side in the second direction.

16 . The display device of claim 15 , when viewed along a thickness direction of the display panel, the first protrusion has an inverted trapezoidal shape.

17 . The display device of claim 15 , wherein a second protrusion configured to protrude in a direction away from the first plate and spaced apart from the first protrusion in a first direction, a third protrusion spaced apart from the second protrusion in the first direction, and a fourth protrusion spaced apart from the third protrusion in the first direction are further defined on the second plate, and the phase change material is accommodated in each of the second protrusion, the third protrusion, and the fourth protrusion.

18 . The display device of claim 17 , wherein the second protrusion and the third protrusion are defined between the first protrusion and the fourth protrusion, and a gap between the second protrusion and the third protrusion is greater than a gap between the third protrusion and the fourth protrusion.