Vibration apparatus and apparatus including the same

1 . An apparatus, comprising:

a display panel configured to display an image;

a vibration apparatus disposed at a rear surface of the display panel to vibrate the display panel, the vibration apparatus including a plurality of vibration structures, and at least one of the plurality of vibration structures including a plurality of layers stacked on each other; and

a pad member disposed outside or inside the vibration apparatus, the pad member having a different shape from the plurality of vibration structures in a plan view and including a plurality of layers stacked on each other,

wherein each of the plurality of layers of the pad member comprises a same material as a material comprised in a respective one of the plurality of layers of the at least one of the plurality of vibration structures,

wherein the pad member is spaced apart from the plurality of vibration structures, overlaps a region between the plurality of vibration structures, and has a same shape as the region between the plurality of vibration structures,

wherein the pad member has a smaller size than the vibration apparatus, and

wherein the pad member is a resonance control pad configured to adjust a resonance of the vibration apparatus and to prevent a resonance frequency in the region between the plurality of vibration structures.

2 . The apparatus of claim 1 , wherein:

the plurality of vibration structures are spaced apart from each other in the plan view; and

the pad member is disposed inside the vibration apparatus between the plurality of vibration structures and on a same plane as the plurality of vibration structures, or the pad member has a “+”-shape in the plan view.

3 . The apparatus of claim 2 , further comprising at least one other pad member including a plurality of layers stacked on each other,

wherein each of the plurality of layers of the at least one other pad member includes the same material as the material comprised in the respective one of the plurality of layers of the at least one of the plurality of vibration structures.

4 . The apparatus of claim 1 , further comprising a supporting member disposed at the rear surface of the display panel,

wherein the pad member is disposed outside the vibration apparatus between the supporting member and the vibration apparatus.

5 . The apparatus of claim 4 , wherein the supporting member is spaced apart from the rear surface of the display panel with a gap space therebetween.

6 . The apparatus of claim 4 , further comprising a partition disposed between the display panel and the supporting member and configured to separate the plurality of vibration structures from each other.

7 . The apparatus of claim 4 , wherein:

the pad member overlaps the region between the plurality of vibration structures and has a “+”-shape in the plan view.

8 . The apparatus of claim 1 , wherein the vibration apparatus comprises N (where N is a natural number of 2 or more) or more vibration structures.

9 . The apparatus of claim 8 , wherein the vibration structures are disposed spaced apart from one another in a widthwise direction or a lengthwise direction of the display panel intersecting with the widthwise direction.

10 . The apparatus of claim 1 , further comprising:

a supporting member disposed at the rear surface of the display panel; and

a partition disposed between the display panel and the supporting member,

wherein the partition is configured to separate the plurality of vibration structures from each other.

11 . The apparatus of claim 1 , wherein each of the plurality of vibration structures comprises a first portion and a second portion between adjacent first portions.

12 . The apparatus of claim 11 , wherein an arrangement direction of the first portion and an arrangement direction of the second portion are the same as a widthwise direction of the display panel, a lengthwise direction of the display panel, or a combination thereof.

13 . The apparatus of claim 11 , wherein the first portion comprises an inorganic material, and the second portion comprises an organic material.

14 . The apparatus of claim 11 , wherein the pad member is disposed to correspond to the first portion.

15 . The apparatus of claim 1 , wherein the vibration apparatus comprises a plurality of vibration generators including the plurality of vibration structures.

16 . The apparatus of claim 15 , wherein the plurality of vibration generators are stacked on each other to be displaced in the same direction.

17 . The apparatus of claim 1 , wherein:

one of the plurality of layers of the at least one of the plurality of vibration structures is a vibration portion; and

the vibration apparatus further comprises:

a first protection member disposed at a first surface of the vibration portion; and

a second protection member disposed at a second surface different from the first surface of the vibration portion.

18 . The apparatus of claim 17 , wherein the plurality of layers of the at least one of the plurality of vibration structures further comprise:

a first electrode layer between the vibration portion and the first protection member; and

a second electrode layer between the vibration portion and the second protection member.

19 . The apparatus of claim 18 , wherein the vibration apparatus further comprises:

a first adhesive layer disposed between the first electrode layer and the first protection member and between the plurality of vibration structures; and

a second adhesive layer disposed between second electrode layer and the second protection member and between the plurality of vibration structures.

20 . The apparatus of claim 18 , wherein the vibration apparatus further comprises:

a first power supply line disposed at the first protection member;

a second power supply line disposed at the second protection member; and

a pad part electrically connected to each of the first power supply line and the second power supply line.

21 . The apparatus of claim 18 , wherein the pad member comprises:

a vibration layer comprising the same material as the vibration portion of the at least one of the plurality of vibration structures;

a first electrode layer disposed at a first surface of the vibration layer; and

a second electrode layer disposed at a second surface different from the first surface of the vibration layer.

22 . The apparatus of claim 21 , wherein, with respect to the display panel, a polarity of the first electrode layer of the at least one of the plurality of vibration structures differs from a polarity of the second electrode layer of the pad member.

23 . The apparatus of claim 21 , wherein:

the first electrode layer of the at least one of the plurality of vibration structures is disposed closer to the display panel than the second electrode layer of the at least one of the plurality of vibration structures is, and

the second electrode layer of the pad member is disposed closer to the display panel than the first electrode layer of the pad member is.

24 . The apparatus of claim 17 , wherein the first protection member and the second protection member of each of the plurality of vibration structures share the pad member.

25 . The apparatus of claim 1 , further comprising a plate between the display panel and the vibration apparatus.

26 . A vibration apparatus, comprising:

a vibration portion including a plurality of vibration structures, at least one of the plurality of vibration structures including a plurality of layers stacked on each other; and

a pad member outside or inside the vibration portion, the pad member having a different shape from the plurality of vibration structures in a plan view and including a plurality of layers stacked on each other,

wherein each of the plurality of layers of the pad member comprises a same material as a material comprised in a respective one of the plurality of layers of the at least one of the plurality of vibration structures,

wherein the pad member is spaced apart from the plurality of vibration structures, overlaps a region between the plurality of vibration structures, and has a same shape as the region between the plurality of vibration structures,

wherein the pad member has a smaller size than the vibration apparatus, and

wherein the pad member is a resonance control pad configured to adjust a resonance of the vibration portion and to prevent a resonance frequency in the region between the plurality of vibration structures.

27 . The vibration apparatus of claim 26 , wherein:

the pad member has a “+”-shape in the plan view.

28 . The vibration apparatus of claim 26 , wherein the pad member includes a plurality of pad members, and wherein each of the plurality of vibration structures has a corresponding pad member.

29 . The vibration apparatus of claim 26 , wherein the pad member is disposed in parallel with the plurality of vibration structures of a vibration generator.

30 . The vibration apparatus of claim 26 , wherein the vibration apparatus comprises a plurality of vibration generators, each including the plurality of vibration structures, and

wherein the vibration generators and the pad member are disposed in a stacked arrangement.

31 . The vibration apparatus of claim 26 , wherein the vibration portion comprises:

a vibration layer;

a first electrode layer disposed at a first surface of the vibration layer; and

a second electrode layer disposed at a second surface different from the first surface of the vibration layer.

32 . The vibration apparatus of claim 31 , further comprising:

a first protection member disposed at a first surface of the first electrode layer; and

a second protection member disposed at a second surface different from the first surface of the first electrode layer.

33 . The vibration apparatus of claim 32 , wherein the first protection member and the second protection member of the vibration portion share the pad member.

34 . The vibration apparatus of claim 31 , wherein the pad member comprises:

a vibration layer;

a first electrode layer disposed at a first surface of the vibration layer; and

a second electrode layer disposed at a second surface different from the first surface of the vibration layer.

35 . The vibration apparatus of claim 34 , wherein a polarity of the first electrode layer of the vibration portion differs from a polarity of the second electrode layer of the pad member.

36 . The vibration apparatus of claim 34 , wherein:

the pad member is disposed in a separation region between the plurality of vibration structures,

the first electrode layer of the vibration portion corresponds to the second electrode layer of the pad member and the second electrode layer of the vibration portion corresponds to the first electrode layer of the pad member, and

a polarity of the first electrode layer of the vibration portion differs from a polarity of the second electrode layer of the pad member.

37 . An apparatus, comprising:

a vibration member; and

a vibration apparatus disposed at the vibration member,

wherein the vibration apparatus comprises:

a vibration portion including a plurality of vibration structures, at least one of the plurality of vibration structures including a plurality of layers stacked on each other; and

a pad member outside or inside the vibration portion, the pad member having a different shape from the plurality of vibration structures in a plan view and including a plurality of layers stacked on each other, and

wherein each of the plurality of layers of the pad member comprises a same material as a material comprised in a respective one of the plurality of layers of the at least one of the plurality of vibration structures,

wherein the pad member is spaced apart from the plurality of vibration structures, overlaps a region between the plurality of vibration structures, and has a same shape as the region between the plurality of vibration structures,

wherein the pad member has a smaller size than the vibration apparatus, and

wherein the pad member is a resonance control pad configured to adjust a resonance of the vibration apparatus and to prevent a resonance frequency in the region between the plurality of vibration structures.

38 . The apparatus of claim 37 , wherein:

the vibration member comprises a plate, and

the plate comprises a metal material, or comprises a single nonmetal material or a composite nonmetal material of one or more among wood, plastic, glass, cloth, and leather.

39 . The apparatus of claim 37 , wherein the vibration member comprises a display panel including a plurality of pixels configured to display an image, or comprises one non-display panel among a light emitting diode lighting panel, an organic light emitting lighting panel, and an inorganic light emitting lighting panel.

40 . The apparatus of claim 37 , wherein the vibration member comprises a display panel including a plurality of pixels configured to display an image, or comprises one or more among a vehicle interior material, a vehicle glass window, a building ceiling, a building glass window, a building interior material, an aircraft interior material, and an aircraft glass window.

41 . The apparatus of claim 37 , wherein the vibration portion comprises:

a vibration layer;

a first electrode layer disposed at a first surface of the vibration layer; and

a second electrode layer disposed at a second surface different from the first surface of the vibration layer.

42 . The apparatus of claim 41 , wherein the vibration layer comprises a first portion including an inorganic material and a second portion between adjacent first portions, and the second portion includes an organic material.

43 . The apparatus of claim 41 , wherein the first electrode layer is disposed closer to the vibration member than the second electrode layer.

44 . The apparatus of claim 41 , wherein the pad member comprises:

a vibration layer;

a first electrode layer disposed at a first surface of the vibration layer; and

a second electrode layer disposed at a second surface different from the first surface of the vibration layer.

45 . The apparatus of claim 44 , wherein the second electrode layer of the pad member is disposed closer to the vibration member than the first electrode layer.

46 . The apparatus of claim 44 , wherein a polarity of the first electrode layer of the vibration portion differs from a polarity of the second electrode layer of the pad member.

47 . The apparatus of claim 37 , wherein:

the vibration portion comprises a plurality of vibration generators; and

each of the plurality of vibration generators comprise the plurality of vibration structures.

48 . The apparatus of claim 37 , wherein the pad member includes a plurality of pad members, each of which is configured to be equal to each of the plurality of vibration structures.