CN114255646A - Bendable display device - Google Patents

Referring to fig. 1 to 3, an embodiment of the present application provides a

bendable display apparatus

100, which includes: a

flexible member

10 and a

folding mechanism

30. The

flexible member

10 comprises a

first portion

11, a

second portion

13 and a

third portion

15 connecting the

first portion

11 and the

second portion

13. The

folding mechanism

30 includes: a

middle connecting member

31; a

first driving mechanism

33 and a

second driving mechanism

35 rotatably connected to opposite sides of the

middle connection assembly

31, respectively; a

first support

37 slidably coupled to the

first drive mechanism

33 and a

second support

39 slidably coupled to the

second drive mechanism

35, the

first support

37 for supporting the

first portion

11 of the

flexible member

10 and the

second support

39 for supporting the

second portion

13 of the

flexible member

10. When the

first driving mechanism

33 and the

second driving mechanism

35 rotate towards or away from each other, the first supporting

member

37 and the second supporting

member

39 are driven to rotate towards or away from each other, and move towards the direction away from or towards the

middle connecting assembly

31 respectively relative to the

first driving mechanism

33 and the

second driving mechanism

35. The

bendable display device

100 has a bending axis (shown as dashed line AA in fig. 2).

The

bendable display device

100 of the present application includes but is not limited to a bendable mobile phone, a bendable tablet, a bendable electronic reader, a bendable display, a bendable computer, a bendable television, a bendable smart wearable device, and the like, which can be bent or folded.

Alternatively, the

flexible member

10 may be, but is not limited to, a flexible display screen.

Optionally, in some embodiments, the

first portion

11 is secured to the

first support

37 and the

second portion

13 is secured to the

second support

39.

Alternatively, the

third portion

15 is not fixed to the central connecting

member

31. Or in another embodiment, the position of the

third portion

15 is fixed at the

middle connecting component

31 corresponding to the bending shaft, so as to prevent the

third portion

15 from deviating during the folding and unfolding process.

The

bendable display device

100 of the present application supports the

first portion

11 of the

flexible member

10 by using the first supporting

member

37, and the second supporting

member

39 supports the

second portion

13 of the

flexible member

10, and when the

first driving mechanism

33 and the

second driving mechanism

35 rotate towards or away from each other, the first supporting

member

37 and the second supporting

member

39 are driven to rotate towards or away from each other together, and move towards the direction away from or towards the

middle connecting assembly

31 relative to the

first driving mechanism

33 and the

second driving mechanism

35, respectively. So that the

foldable display device

100 is bent, the

third portion

15 of the

flexible member

10 is length-compensated to prevent the

third portion

15 from being crushed or stretched and thus damaged.

Alternatively, in some embodiments, the

folding mechanism

30 supports the

third portion

15 of the

flexible member

10 to bend at a predetermined radius of curvature when the

bendable display device

100 is bent. More specifically, the

third portion

15 is bent in a drop shape to compensate for the length of the

third portion

15 of the

flexible member

10, and the

third portion

15 is prevented from being damaged by being crushed or stretched, thereby having a longer life span.

Referring to fig. 3 and 4, in some embodiments, the

first driving mechanism

33 and the

second driving mechanism

35 are rotatably connected to opposite sides of the

middle connecting member

31 by gear engagement.

Alternatively, the

first driving mechanism

33 includes a

first driving plate

331 and a

first driving member

333 fixed to one end of the

first driving plate

331, and the

first driving plate

331 is slidably connected to the

first support

37. The

second driving mechanism

35 includes a

second driving plate

351 and a

second driving member

353 fixed to one end of the

second driving plate

351, and the

second driving plate

351 is slidably connected to the second supporting

member

39. The first and

second driving members

333 and 353 are engaged with the

middle connecting member

31 and rotatably connected to opposite sides of the

middle connecting member

31, respectively.

In some embodiments, the number of the

first driving members

333 and the

second driving members

353 is two, the two

first driving members

333 are respectively located at two opposite ends of the

middle connecting member

31 along the bending axis, and the two

second driving members

353 are respectively located at two opposite ends of the

middle connecting member

31 along the bending axis. In addition, the number of the

first driving member

333 and the

second driving member

353 may also be 1, 3, 4 or other numbers, which are set according to the requirement and are not specifically limited in this application.

Optionally, in some embodiments, the

first driving plate

331 includes a first

sliding slot

301, the

second driving plate

351 includes a second

sliding slot

302, the

first support

37 is slidably disposed in the first

sliding slot

301, and the

second support

39 is slidably disposed in the second

sliding slot

302.

In one embodiment, each of the first and

second drive plates

331, 351 includes a

bottom plate

303 and two

side plates

304 extending from the

bottom plate

303 in a direction away from the

bottom plate

303, and an

end plate

306 connecting the two

side plates

304 on a side away from the

middle connecting assembly

31. The

bottom plate

303, the two

side plates

304, and the

end plate

306 together enclose an accommodation space, which can be used for accommodating an internal structure or electronic components of the

flexible display device

100. One end of the

side plate

304 adjacent the

middle linkage assembly

31 is secured to the

first drive member

333. Specifically, the

first slide groove

301 is provided in the

side plate

304 of the

first drive plate

331, and the

second slide groove

302 is provided in the

side plate

304 of the

second drive plate

333. The first supporting

member

37 and the second supporting

member

39 are respectively provided with a sliding rail 305 (as shown in fig. 3), and the sliding

rail

305 of the first supporting

member

37 and the sliding

rail

305 of the second supporting

member

39 are respectively connected with the first sliding

chute

301 and the second sliding

chute

302 in a sliding manner.

Optionally, in some embodiments, the first sliding

groove

301 and the second sliding

groove

302 are perpendicular to the bending axis of the

bendable display device

100, so that the first supporting

member

37 and the second supporting

member

39 move away from or towards the

middle connecting member

31 relative to the

first driving mechanism

33 and the

second driving mechanism

35 when they rotate toward or away from the

middle connecting member

31.

Referring to fig. 5, optionally, in some embodiments, the first driving

member

333 and the

second driving member

353 each include a

first arm

3301 and a

second arm

3303 connected to the

first arm

3301 in a bent manner. The

first arm

3301 of the

first driving unit

333 is fixed to the

side plate

304 of the

first driving plate

331, and the

first arm

3301 of the

second driving unit

353 is fixed to the

side plate

304 of the

second driving plate

351.

Alternatively, the

first arm

3301 of the first driving

member

333 is provided with a

first tooth

3302, the

first arm

3301 of the

second driving member

353 is provided with a

second tooth

3304, and the

first tooth

3302 and the

second tooth

3304 are respectively engaged with the

middle connecting member

31 and rotatably connected to opposite sides of the

middle connecting member

31.

Alternatively, the first and

second supports

37 and 39 are rotatably connected to the

middle connection assembly

31, respectively, and the rotation axes of the first and

second supports

37 and 39 are far from the bending axis than the rotation axes of the first and second driving

members

333 and 353.

Referring to fig. 6, in some embodiments, the

middle connecting assembly

31 includes a

cover

311 and a

gear assembly

313, the

gear assembly

313 is rotatably disposed on the

cover

311, and the

gear assembly

313 is respectively engaged with the first driving

member

333 and the

second driving member

353, and enables the first driving

member

333 and the

second driving member

353 to rotate synchronously toward or away from each other.

Alternatively, the

gear assembly

313 includes a

first gear

3101 and a

second gear

3102 engaged with the

first gear

3101, and the

first gear

3101 and the

second gear

3102 are respectively rotatably provided on one side of the

cover

311; the

first tooth

3302 of the

first driver

333 meshes with the

first gear

3101; the

second tooth

3304 of the

second driving member

353 is engaged with the

second gear

3102, so that the first driving

member

333 and the

second driving member

353 are respectively connected to the

cover

311 in a rotating manner and rotate synchronously toward or away from each other.

Optionally, the

gear assembly

313 further includes a

third gear set

3103, the

third gear set

3103 includes an even number of gears which are sequentially meshed and respectively rotatably connected to the

cover

311, and the

first gear

3101 is meshed with the

second gear

3102 through the

third gear set

3103, that is, the

first gear

3101, the

third gear set

3103 and the

second gear

3102 are sequentially meshed. In the embodiment of fig. 6, the

third gear set

3103 includes two intermeshing gears.

When the

foldable display device

100 is folded or unfolded, the

first driving mechanism

33 and the

second driving mechanism

35 rotate around their respective rotation axes in a facing direction or in an opposite direction, so as to drive the

first support

37 and the

second support

39 to rotate in a facing direction or in an opposite direction relative to the

middle connection assembly

31, and meanwhile, under the action of the

first tooth

3302 of the

first driving mechanism

33 and the

second tooth

3304 of the

second driving mechanism

35, the

first gear

3101 and the

second gear

3102 rotate in a facing direction or in an opposite direction, and the

first gear

3101 and the

second gear

3102 are engaged with each other or engaged with each other through the

third gear set

3103, so that the

first gear

3101 and the

second gear

3102 rotate in a facing direction or in an opposite direction.

Referring to fig. 6 and 7, in some embodiments, the

middle connecting assembly

31 further includes a compensation assembly 315, the compensation assembly 315 is fixed to the

cover

311, the first supporting

member

37 and the second supporting

member

39 are respectively rotatably connected to two opposite sides of the compensation assembly 315, and when the

first driving mechanism

33 and the

second driving mechanism

35 rotate toward or away from each other, the compensation assembly 315 drives the first supporting

member

37 and the second supporting

member

39 to move away from or toward the

middle connecting assembly

31, respectively.

Optionally, in some embodiments, the number of the compensation elements 315 is two, and the two compensation elements 315 are disposed on the

cover

311 at intervals along the bending axis direction. In addition, the number of the compensation components 315 may also be 1, 3, 4 or other numbers, which is not specifically limited in this application.

Optionally, the compensation assembly 315 includes a fixing

member

3151 fixed to the

cover

311, a first sliding

member

3153 and a second sliding

member

3155 slidably connected to the fixing

member

3151, respectively; the first sliding

part

3153 and the second sliding

part

3155 are respectively rotatably connected to the first supporting

part

37 and the second supporting

part

39, when the

foldable display device

100 is bent or unfolded, the first supporting

part

37 and the second supporting

part

39 respectively rotate towards or away from each other under the action of the

first driving mechanism

33 and the

second driving mechanism

35, and the first sliding

part

3153 and the second sliding

part

3155 are linked to move towards or away from the

middle connecting assembly

31, so as to further drive the first supporting

part

37 and the second supporting

part

39 to move towards or away from the

middle connecting assembly

31.

In some embodiments, the fixing

member

3151 is provided with a

groove

3105, and the

first slider

3153 and the

second slider

3155 are slidably disposed in the

groove

3105, respectively.

In some embodiments, the

groove

3105 is an arc-shaped

groove

3105, the arc center of the arc-shaped

groove

3105 being closer to the bending axis than the arc-shaped

groove

3105. Specifically, the arc-shaped

groove

3105 may be an arc-shaped groove, an elliptical arc-shaped groove, or an arc-shaped groove with a changing curvature radius, which is not specifically limited in this application.

In some embodiments, the

groove

3105 includes a

first slot

301 and a

second slot

302, with the

first slider

3153 slidably disposed in the

first slot

301 and the

second slider

3155 slidably disposed in the

second slot

302. In some embodiments, the

first slot

301 and the

second slot

302 are in communication, and in other embodiments, the

first slot

301 and the

second slot

302 are spaced apart.

In some embodiments, the

first slider

3153 is provided with a

first protrusion

303, and the

second slider

3155 is provided with a

second protrusion

304; the

first protrusion

303 and the

second protrusion

304 are slidably disposed in the

first slot

301 and the

second slot

302, respectively.

In some embodiments, the

first protrusion

303 and the

second protrusion

304 may be convex columns, and may also be arc-shaped convex tracks, and when the

first protrusion

303 and the

second protrusion

304 are arc-shaped convex tracks, the arcs of the arc-shaped convex tracks match the arcs of the

first slot position

301 and the

second slot position

302, respectively.

In some embodiments, the

middle connecting member

31 further includes a

housing

317, the

housing

317 and the

cover

311 enclose a receiving space, and the

gear assembly

313 and the compensating assembly 315 are located in the receiving space.

1. A bendable display device, comprising:

a flexible member including a first portion, a second portion and a third portion connecting the first and second portions;

a folding mechanism, the folding mechanism comprising:

a middle connecting assembly;

the first driving mechanism and the second driving mechanism are respectively connected to two opposite sides of the middle connecting component in a rotating manner;

a first support member slidably coupled to the first drive mechanism for supporting a first portion of the flexible member and a second support member slidably coupled to the second drive mechanism for supporting a second portion of the flexible member;

when the first driving mechanism and the second driving mechanism rotate in opposite directions or in opposite directions, the first supporting piece and the second supporting piece are driven to rotate in opposite directions or in opposite directions together, and the first driving mechanism and the second driving mechanism respectively move in the direction away from or towards the middle connecting assembly.

2. A bendable display device according to claim 1, wherein the folding mechanism supports the third portion of the flexible member to bend at a predetermined radius of curvature when the bendable display device is bent.

3. A flexible display device as claimed in claim 1, wherein said first drive mechanism and said second drive mechanism are rotatably connected to opposite sides of said central linkage assembly by gear engagement.

4. A bendable display device according to claim 3, wherein the first driving mechanism comprises a first driving plate and a first driving member fixed to one end of the first driving plate, the first driving plate being slidably provided with a first supporting member; the second driving mechanism comprises a second driving plate and a second driving piece fixed at one end of the second driving plate, a second supporting piece is arranged on the second driving plate in a sliding mode, and the first driving piece and the second driving piece are respectively meshed with the middle connecting assembly and are rotatably connected to two opposite sides of the middle connecting assembly.

5. A bendable display device according to claim 4, wherein the bendable display device has a bending axis, the first and second supports are rotatably connected to the middle connection assembly, respectively, and the rotation axes of the first and second supports are far from the bending axis compared to the rotation axes of the first and second driving members.

6. A bendable display device according to claim 5, wherein the middle connection assembly comprises a cover body and a gear assembly rotatably disposed on the cover body, the gear assembly respectively meshing with the first driving member and the second driving member and rotating the first driving member and the second driving member synchronously toward or away from each other.

7. A bendable display apparatus according to claim 6, wherein the gear assembly comprises a first gear and a second gear engaged with the first gear, the first gear and the second gear being respectively rotatably provided at one side of the cover; the first driving piece is provided with first teeth, and the first teeth are meshed with the first gear; the second driving part is provided with second teeth, and the second teeth are meshed with a second gear so that the first driving part and the second driving part synchronously rotate in the opposite direction or in the opposite direction.

8. A bendable display apparatus according to claim 7, wherein the gear assembly further comprises a third gear set comprising an even number of gears that are sequentially meshed and respectively rotatably connected, the first gear being meshed with the second gear through the third gear set.

9. A bendable display device according to claim 6, wherein the middle connecting assembly further comprises a compensation assembly fixed to the cover, the first support and the second support are respectively rotatably connected to opposite sides of the compensation assembly, and when the first driving mechanism and the second driving mechanism rotate towards or away from each other, the compensation assembly is linked to drive the first support and the second support to move towards or away from the middle connecting assembly.

10. A bendable display device according to claim 9, wherein the compensation assembly comprises a fixed member fixed to the cover body, a first sliding member and a second sliding member slidably connected to the fixed member, respectively; the first sliding part and the second sliding part are respectively rotatably connected with the first supporting part and the second supporting part, when the bendable display device is bent or unfolded, the first supporting part and the second supporting part are respectively rotated in the opposite directions or in the opposite directions under the action of the first driving mechanism and the second driving mechanism to link the first sliding part and the second sliding part to move in the direction away from or towards the middle connecting assembly, and further drive the first supporting part and the second supporting part to move in the direction away from or towards the middle connecting assembly.

11. A bendable display device according to claim 10, wherein the fixing member is provided with a groove, and the first sliding member and the second sliding member are slidably provided in the groove, respectively.

12. A bendable display device according to claim 11, wherein the groove is an arc-shaped groove having an arc center closer to the bending axis than the arc-shaped groove.

13. A bendable display device according to claim 12, wherein the groove comprises a first slot and a second slot, the first slider slidably disposed in the first slot and the second slider slidably disposed in the second slot.

14. A bendable display device according to claim 13, wherein the first slider is provided with a first protrusion and the second slider is provided with a second protrusion; the first protrusion and the second protrusion are respectively arranged in the first slot position and the second slot position in a sliding mode.

15. A bendable display device according to claim 4, wherein the first driving board comprises a first sliding slot, the second driving board comprises a second sliding slot, the first support is slidably disposed in the first sliding slot, and the second support is slidably disposed in the second sliding slot.