Display apparatus
A display apparatus comprises a display device including a display panel and a back cover on a rear surface of the display panel, and a curvature variation device at the back cover to vary a curvature of the display device, the curvature variation device may include an arc member at a rear region of the display device parallel to a first direction, a supporting plate at the rear region of the display device, a rotation driver on the supporting plate, a rectilinear driver on the supporting plate to perform a rectilinear motion, a rotation link part coupled to a center portion of the arc member on the supporting plate to rotate the center portion of the arc member based on a rectilinear motion of the rectilinear driver, and a holder part rotatably supporting the center portion of the arc member on the supporting plate.
1 . A display apparatus comprising:
a display device having a display panel configured to display an image;
a curvature variation device having a plurality of fixing bracket movably supporting an arc member disposed at a rear region of the display device; and
a sound generating device disposed on the display panel to vibrate the display panel and disposed between the plurality of fixing bracket.
2 . The display apparatus of claim 1 , wherein the arc member comprises a first arc member and a second arc member respectively disposed at a first rear region and a second rear region of the display device.
3 . The display apparatus of claim 2 , wherein the first arc member and the second arc member are configured to be symmetrical with each other with respect to a rear center region of the display device.
4 . The display apparatus of claim 3 , wherein the first arc member and the second arc member respectively have a curved shape curved in opposite directions.
5 . The display apparatus of claim 1 , wherein the plurality of fixing bracket is movably supported the one end and the another end of the arc member.
6 . The display apparatus of claim 1 , wherein the plurality of fixing bracket is disposed at a first rear periphery portion and a second rear periphery portion of the display device.
7 . The display apparatus of claim 1 , further comprising a back cover disposed at a rear surface of the display panel and supporting the curvature variation device.
8 . The display apparatus of claim 7 , further comprising a groove portion formed to be concave from the back cover overlapping with the curvature variation device and accommodating the curvature variation device.
9 . The display apparatus of claim 7 , wherein the sound generating device comprises a bobbin and a coil wound around the bobbin, and
wherein the bobbin passes through the back cover and is connected to the rear surface of the display panel.
10 . The display apparatus of claim 7 , wherein the back cover comprises a slit overlapping the sound generating device.
11 . The display apparatus of claim 7 , wherein the sound generating device is disposed between the display panel and the back cover.
12 . The display apparatus of claim 1 , wherein the sound generating device comprises:
a piezoelectric vibration portion having a piezoelectric characteristic;
a first electrode portion disposed on a first surface of the piezoelectric vibration portion; and
a second electrode portion disposed on a second surface, which is opposite to the first surface, of the piezoelectric vibration portion.
13 . The display apparatus of claim 1 , wherein the sound generating device comprises:
a piezoelectric vibration portion including a plurality of inorganic material portions having a piezoelectric characteristic and an organic material portion between the plurality of inorganic material portions;
a first electrode portion disposed on a first surface of the piezoelectric vibration portion; and
a second electrode portion disposed on a second surface, which is opposite to the first surface, of the piezoelectric vibration portion.
14 . The display apparatus of claim 7 , wherein the sound generating device comprises a pair of sound generating devices coupled to the back cover to vibrate the display panel, and
wherein the back cover comprises a slit disposed between the pair of sound generating devices.
15 . The display apparatus of claim 7 , wherein the display panel comprises a first vibration region and a second vibration region divided by an intermediate member.
16 . The display apparatus of claim 15 , wherein the sound generating device comprises:
a first sound generating device vibrating the first vibration region of the display panel; and
a second sound generating device vibrating the second vibration region of the display panel.
17 . The display apparatus of claim 16 , wherein the display panel further comprising a groove portion formed to be concave from the back cover overlapping with the curvature variation device and accommodating the curvature variation device.
18 . The display apparatus of claim 17 , wherein the intermediate member is disposed between the groove portion and the display panel.