CN112735269B

CN112735269B - Display device

Info

Publication number: CN112735269B
Application number: CN202011591331.9A
Authority: CN
Inventors: 徐明樟
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2020-09-02
Filing date: 2020-12-29
Publication date: 2022-11-11
Anticipated expiration: 2040-12-29
Also published as: TW202211767A; CN112735269A; TWI741775B

Abstract

The invention provides a display device. The display device comprises a flexible substrate and a buffer mechanism. The flexible substrate is provided with a first part, a second part and a bending part between the first part and the second part. The flexible substrate is provided with a front surface and a back surface; when the back surfaces of the first part and the second part face each other, the bending part extends between the first part and the second part in a bending way. The buffer mechanism comprises a support part with a support end part and a buffer material. The supporting end part is abutted against the back surface of the bending part, and one end of the buffer material, which is relatively close to the supporting end part, is connected to the supporting part. The buffer material can be compressed and expanded to allow the supporting part to move along the back surfaces of the first part and the second part.

Description

Display device

Technical Field

The present invention relates to a display device. More particularly, the present invention relates to a display device having a buffer mechanism.

Background

In recent years, with the vigorous development and wide application of electronic devices, besides the practical functions and efficiency, the improvement of the appearance of electronic devices has been emphasized. In order to enhance the aesthetic feeling of the whole electronic device, the frame can be reduced or specific elements or circuits can be hidden. For example, in order to achieve a reduced frame or hide specific components or circuits, the flexible substrate may be bent at the side edges to accommodate the flexible substrate and the components or circuits thereon beyond the boundary at the back of the whole device. However, the flexible substrate bent and concavely curved at the side edge may be subjected to external impact during assembly, transportation or use, and thus stress is generated and may cause damage or defects of the flexible substrate and the components or lines mounted thereon. In addition, when the flexible base material is subjected to external impact, the flexible base material may undesirably move or deform, which may cause misalignment or pressure in the assembly of the components of the overall device. Therefore, in such design arrangements, there is a need to develop structures or methods that can reduce the impact of external impacts, and can quickly dissipate the stress and recover its original shape or position when subjected to the stress.

Disclosure of Invention

It is an object of the present invention to provide a display device to solve at least one of the above problems.

To solve the above problems, an embodiment of the present invention provides a display device, comprising: a flexible substrate and a buffer mechanism. The flexible substrate is provided with a first part, a second part and a bending part between the first part and the second part. Wherein, the flexible base material has a front surface and a back surface. When the back surfaces of the first part and the second part face each other, the bending part extends between the first part and the second part in a bending way. The buffer mechanism includes: has a supporting part for supporting the end part and a buffer material. The supporting end part is abutted against the back surface of the bending part, and one end of the buffer material, which is relatively close to the supporting end part, is connected to the supporting part. The buffer material can be compressed and expanded to allow the support part to move along the back surfaces of the first part and the second part.

The display device provided by the embodiments of the invention can reduce or avoid impact and damage of external force on the display device based on the arrangement of the buffer mechanism. Accordingly, it is possible to protect the components of the display device and maintain the configuration of the display device while achieving a desired appearance, such as reducing the bezel or hiding specific elements or lines. In particular, stress at the bent portions of the respective components that are easily moved or deformed by the impact of an external force can be relieved or relaxed, or the moved or deformed components can be restored to their original positions or shapes. Therefore, the damage or dislocation which may be generated unexpectedly when the display device is assembled, transported or used can be reduced or avoided, thereby improving the quality and the service life of the whole display device.

Drawings

Fig. 1 is a schematic cross-sectional view of a display device having a buffer mechanism according to an embodiment of the invention.

Fig. 2 is a schematic top view of a display device with a buffering mechanism according to an embodiment of the invention.

Fig. 3A is a cross-sectional view of a spring-wound support according to an embodiment of the invention.

Fig. 3B is a side view of a spring-wound support according to an embodiment of the invention.

Fig. 4A to 4C are schematic diagrams illustrating the reaction action of the display device with the buffering mechanism when being collided by an external force according to an embodiment of the present invention.

Fig. 5 is a schematic diagram illustrating a basic architecture of a display device with a buffer mechanism for absorbing or relieving stress according to an embodiment of the invention.

Fig. 6 is a schematic cross-sectional view of a display device having a buffering mechanism according to another embodiment of the present invention.

Fig. 7 is a schematic top view of a display device having a buffering mechanism according to another embodiment of the present invention.

Fig. 8 is a side view of a spring wound support according to another embodiment of the invention.

Fig. 9 is a top view of a display device with a slide slot on a carrier according to an embodiment of the invention.

Fig. 10A is a schematic view illustrating that the first resilient sheet and/or the second resilient sheet has a protrusion inserted into the sliding groove according to another embodiment of the invention.

Fig. 10B is a schematic view of a slide with balls disposed in the slide according to yet another embodiment of the present invention.

Fig. 11A to 11C are schematic diagrams illustrating the reaction action of a display device with a buffering mechanism when being collided by an external force according to another embodiment of the present invention.

Fig. 12 is a schematic diagram of a basic architecture of a display device with a buffer mechanism for absorbing or relieving stress according to another embodiment of the invention.

Fig. 13A to 13D are schematic diagrams illustrating a reaction action of a display device with a buffer mechanism in a lower half portion of the display device according to still another embodiment of the invention when being collided by an external force.

Fig. 14A to 14D are schematic diagrams illustrating a reaction action of the display device with a buffering mechanism in the upper half portion of the display device according to still another embodiment of the present invention when being collided by an external force.

Fig. 15A and 15B are a cross-sectional view and a top view of a display device having a buffer mechanism with an opposite supporting portion on the other side according to an embodiment of the invention.

Fig. 16A and 16B are a cross-sectional view and a top view of a display device having a buffer mechanism of an opposite support portion on the other side according to still another embodiment of the invention.

Fig. 17A and 17B are a cross-sectional view and a top view of a display device having a buffer mechanism with an opposite support portion on the other side according to another embodiment of the invention.

Fig. 18A and 18B are a cross-sectional view and a top view of a display device having a buffer mechanism with an opposite support portion on the other side according to still another embodiment of the invention.

The reference numbers are as follows:

10. 20, 30, 40, 50, 60, 70, 80, 90: display device

11. 12, 13, 14: connection point

100: flexible base material

110: the first part

115: a bent part

120: the second part

130: third part

135: opposite bending part

140: fourth section

200: supporting part

205: support end

210: first elastic sheet

220: second elastic sheet

215. 225: curved end

250: main body part

300: buffer material

310: first spring

320: second spring

350: main body spring

400: opposite support part

405: opposite support end part

410: opposite to the first elastic sheet

415. 425: opposite curved ends

420: opposite to the second elastic sheet

450: opposing main body part

500: base component

500': subtending base component

510: frame structure

520: carrying platform

600: opposite direction buffer material

605: ball bearing

615: first bump

625: second bump

610: opposite to the first spring

620: opposite to the second spring

650: opposite main body spring

700. 700': staggered structure

720. 720': concave structure

740. 740': columnar structure

750: hinge structure

800: casing (CN)

910: display area

920: back film

930: circuit board

1000. 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000: buffer mechanism

F: external force

S1: front side

S2: back side of the panel

L1, L2, L3, L4: reference line

H1: first surface

H2: second surface

G1: first chute

G2: second chute

P1, P2: side edge

Detailed Description

Various embodiments will be described hereinafter, and the spirit and principles of the invention should be readily understood by those skilled in the art from the description taken in conjunction with the accompanying drawings. However, while certain specific embodiments are specifically illustrated herein, these embodiments are merely exemplary and are not to be considered in all respects as limiting or exhaustive. Accordingly, various changes and modifications to the invention will be apparent to those skilled in the art without departing from the spirit and principles of the invention.

Referring to fig. 1, according to an embodiment of the invention, a display device 10 may include a flexible substrate 100 having a front surface S1 and a back surface S2. For example, the flexible substrate 100 may be made of any material such as Mylar polyester film or PET film, and the invention is not limited thereto. On top of that, the flexible substrate 100 may have a first portion 110, a second portion 120 and a bending portion 115 between the first portion 110 and the second portion 120 according to the block division. According to some embodiments, the front surface S1 of the first portion 110 of the flexible substrate 100 may serve as the display region 910 for displaying, but this is merely an example and the invention is not limited thereto. For example, the first portion 110 of the flexible substrate 100 can also be used as a portion of the display device 10 for other purposes, such as touch control. In addition, the bending portion 115 and the second portion 120 may be used as a portion for disposing other components or a portion extending from the first portion 110.

The flexible substrate 100 can be bent and folded at the side edge P1 of the display device 10, so as to receive the second portion 120 and fold back on the other side of the display device 10 opposite to the first portion 110. For example, according to some embodiments, the front surface S1 of the second portion 120 may be provided with, but not limited to, components (such as COP, FPC, IC, etc.) such as the circuit board 930, and the components of the second portion 120 may be received on the other side opposite to the first portion 110 by folding the second portion 120, so that the frame sense of the display device 10 may be reduced or the components may be hidden and protected. At this time, the back surfaces S2 of the first and

second portions

110 and 120 may face each other. When the back surfaces S2 of the first portion 110 and the second portion 120 face each other, the bending portion 115 extends between the first portion 110 and the second portion 120 in a bending manner.

In some embodiments, it is preferably desirable to maintain the curvature of the bend (i.e., bend 115) of the reverse-folded second portion 120 when received. However, this portion is susceptible to being impacted by unintended external forces to change curvature, even thereby causing associated deformation, displacement, misalignment, damage, and the like of the components. For example, the flexible substrate 100 may have line defects or cracks.

As mentioned above, according to the present embodiment, a buffer mechanism 1000 can be further disposed in the space R surrounded by the back surface S2 of the flexible substrate 100, so as to reduce or avoid the negative impact caused by the unexpected external impact. Specifically, the cushioning mechanism 1000 may include a support portion 200 having a support end 205 and a cushioning material 300. The supporting end 205 can abut against the back surface S2 of the bending portion 115 to support the flexible substrate 100. Further, according to some embodiments, the supporting end 205 may be a curved supporting end 205, such as an oval or spherical supporting end 205, so as to more gently and naturally abut against the back surface S2 of the bending portion 115 of the cut flexible substrate 100, thereby reducing or avoiding damage to the bending portion 115. However, the above is merely an example, and the shape and shaping of the support end 205 is not limited to the examples shown herein.

In some embodiments, the supporting portion 200 may be made of rubber, fiber, PET, PMMA, or PC, etc., and may have a young's modulus E = 0.1-5 GPa, for example. However, the above is only an example, and the material of the supporting portion 200 of the present invention is not limited thereto, in the case of absorbing the stress experienced by the bending portion 115.

As mentioned above, one end of the cushioning material 300 of the cushioning mechanism 1000 relatively close to the supporting end 205 can be connected to the supporting portion 200. For example, as shown in fig. 1, the cushioning material 300 can be connected to the supporting portion 200 at the connecting point 11, and under this configuration, the cushioning material 300 can be compressed and expanded, thereby allowing the supporting portion 200 to move along the back S2 of the first portion 110 and the second portion 120. For example, the supporting portion 200 may include a main body portion 250 extending from the supporting end portion 205 along the back surfaces S2 of the first portion 110 and the second portion 120, and one end of the cushioning material 300 relatively close to the supporting end portion 205 may be connected to the main body portion 250 of the supporting portion 200. Thus, when an external force impacts the bending portion 115 to relatively move the supporting portion 200 abutting against the bending portion 115 as a whole, the buffering material 300 can be driven by the moving main body portion 250 to be compressed and expanded, so as to allow the supporting portion 200 to move along the back S2 of the first portion 110 and the second portion 120.

In one embodiment, the buffering mechanism 1000 may further include a base member 500, and the base member 500 does not move or relatively moves less when the bending portion 115 is impacted by an external force than the supporting portion 200. In this way, the other end of the cushioning material 300 relatively far from the supporting end 205 can be connected to the relatively fixed base member 500, so that the supporting portion 200 can be connected to the base member 500 through the cushioning material 300 in a non-fixed manner, and can move relative to the base member 500 to compress or expand the cushioning material 300. For example, as shown in FIG. 1, the cushioning material 300 may be attached to the base member 500 at attachment points 12. For example, as shown in fig. 1, the base member 500 may be a frame 510 surrounding the body portion 250 of the supporting portion 200, and the cushioning material 300 includes the body spring 350. In this regard, one end of the body spring 350 opposite to the support end 205 is connected to the body portion 250, and the other end of the body spring opposite to the support end 205 is connected to the frame 510, so that the body spring 350 can compress and expand.

According to the present embodiment, the frame 510 (the base member 500) may be, for example, a rectangular hollow spring slot, and may be used to define a space for the body portion 250 to be inserted and the body spring 350 (the buffer material 300) to move. The relatively fixed frame 510 (base member 500) may be directly or indirectly fixedly connected to the back surface S2 of the first portion 110 and the back surface S2 of the second portion 120. For example, the frame 510 may be directly fixed to the back surface S2 of the first portion 110 and the back surface S2 of the second portion 120, or may be indirectly fixed to the back surface S2 of the first portion 110 and the back surface S2 of the second portion 120 through the intermediary of the back film 920 for supporting the flexible substrate 100. However, the above is merely an example, and the other intermediate film layers that can be disposed between the back surface S2 of the flexible substrate 100 and the frame 510 (the base member 500) are not limited to the above example.

With further reference to fig. 2, which is a schematic view of the display device 10 viewed from above, the display device 10 having the above configuration may be additionally assembled with a housing 800 to provide better protection. For the sake of brevity, the components other than the buffering mechanism 1000 are only schematically drawn to illustrate the flexible substrate 100 and the chassis 800 without showing the components such as the back film 920, so as to compare the corresponding positions with fig. 1.

Referring to fig. 3base:Sub>A ofbase:Sub>A cross-sectional view of the damping mechanism 1000 taken along the sectional linebase:Sub>A-base:Sub>A' of fig. 2 or fig. 3B ofbase:Sub>A side view of the damping mechanism 1000, in the damping mechanism 1000, the body spring 350 may be disposed in the frame 510 to be wound around at leastbase:Sub>A portion of the body portion 250. Thus, the entire supporting portion 200 is more stably moved according to the compression and extension of the body spring 350. However, this is merely an example, and both ends of the cushioning material 300 are respectively connected to the supporting portion 200 and the components such as the base member 500, the cushioning material 300 of the present invention, such as the body spring 350, may not be wound around the body portion 250 but only extend along the body portion 250, so that the disposition and assembly of the components in the display device 10 are more flexible.

Next, a flow of a reaction action of the display device 10 when subjected to an external force collision according to an embodiment will be described with reference to fig. 4A to 4C and fig. 5.

As described above, referring to fig. 4A, 4B and 5, when the display device 10 shown in fig. 1 to 3B is subjected to the external force F at the side edge P1, the external force F presses the bending portion 115 of the flexible substrate 100 to make it deviate from the reference line L1 of the alignment without being pressed. At this time, the external force F is firstly buffered by the supporting portion 200 having the supporting end 205 to absorb a part of the stress. For example, the supporting portion 200 may have a predetermined damping coefficient C, such as, but not limited to, C: 10-100ns s/m, and may thereby absorb and relieve some of the stress. Then, the stress that is not absorbed by the buffer is transferred to the buffer 300 such as the body spring 350 as the supporting portion 200 moves in the direction opposite to the side edge P1, and is converted into the elastic force of the buffer 300 such as the body spring 350. For example, the cushioning material 300, such as the body spring 350, may have a predetermined elastic coefficient K, such as but not limited to K: 100-1000N/m, and may thereby transform and relieve some of the stress. Finally, referring to fig. 4C and 5, as the supporting portion 200 moves along the back surface S2 of the first portion 110 and the second portion 120, the compressed buffering material 300 rebounds, such as the elastic force accumulated by the main spring 350, so that the buffering material 300, such as the main spring 350, stretches again, and the supporting portion 200 is pulled and moved toward the side edge P1 through the connection point 11 fixed to the supporting portion 200. Thus, the supporting portion 200 can move back along the back surfaces S2 of the first portion 110 and the second portion 120, and the supporting end 205 and the bending portion 115 of the flexible substrate 100 supported thereby can return to the original alignment reference line L1.

During the above-mentioned collision movement to the return position by the external force F, the base member 500, such as the frame 510, may be substantially continuously aligned with the reference line L2 without moving. That is, the supporting portion 200 and the buffering material 300, such as the body spring 350, can change positions relative to the base member 500, and the base member 500 can be fixed without moving relatively. However, the above is only an example, and as long as the supporting portion 200 and the buffering material 300 such as the body spring 350 can change positions relative to the base member 500, in some cases, the base member 500 may also be displaced along with the collision.

With the above arrangement and reaction actions, according to an embodiment, the stress pressure experienced by the flexible substrate 100 and the entire display device 10 on the reference line L1 can be reduced to 1/6 of the external force F.

Next, referring to fig. 6, a display device 20 according to another embodiment of the present invention will be described, and the same or similar components or details as those of the above-described display device 10 will be omitted or simply brought about.

As shown in fig. 6, the display device 20 may include the flexible substrate 100 and the buffer mechanism 2000 disposed in the space R surrounded by the back surface S2 of the flexible substrate 100, similar to the display device 10. Similarly, the cushioning mechanism 2000 may include a support portion 200 having a support end 205 and a cushioning material 300. However, in this embodiment, the supporting portion 200 may include a first resilient piece 210 and a second resilient piece 220. For example, the first resilient piece 210 and the second resilient piece 220 may be made of stainless steel (SUS) and have a curved front end and an elastic rear end for supporting the extension of the main body. Specifically, the first resilient piece 210 and the second resilient piece 220 may have

curved ends

215 and 225, respectively, and the plurality of

curved ends

215 and 225 of the first resilient piece 210 and the second resilient piece 220 may be jointly spliced to form the supporting end 205. In this way, the supporting end 205 can abut against the back surface S2 of the bending portion 115 to support the flexible substrate 100. However, the above are only examples, and the shape and shape of the supporting end 205 formed by splicing the first resilient tab 210 and the second resilient tab 220 together are not limited to the examples shown herein, while the damage to the bending portion 115 is reduced or avoided.

In the present embodiment, the base member 500 may also be included, and the base member 500 may be, for example, a carrier 520 sandwiched between the first elastic piece 210 and the second elastic piece 220. As compared with the supporting portion 200, the base member 500 does not move or relatively moves less when the bending portion 115 is impacted by an external force. On top of that, the carrier 520 (the base member 500) may be, for example, a base along which the first resilient sheet 210 and the second resilient sheet 220 move, and may be used to define a space for the first resilient sheet 210 and the second resilient sheet 220 to move.

As with the display device 10 described above with reference to fig. 1-5, the cushioning member 300 of the cushioning mechanism 2000 of the display device 20 can be connected to the supporting portion 200 at an end relatively close to the supporting end 205. For example, the cushioning material 300 may have a first spring 310 and a second spring 320. In the upper stage, one end (connection point 11) of the first spring 310 relatively close to the supporting end 205 is connected to the first elastic sheet 210, and the other end (connection point 12) relatively far from the supporting end 205 is connected to the stage 520; one end (connection point 11) of the second spring 320 relatively close to the supporting end 205 is connected to the second elastic piece 220, and the other end (connection point 12) relatively far from the supporting end 205 is connected to the carrier 520. With this arrangement, the cushioning members 300, such as the first spring 310 and the second spring 320, can be compressed and expanded, thereby allowing the supporting portion 200, such as the first resilient sheet 210 and the second resilient sheet 220, to move along the back surfaces S2 of the first portion 110 and the second portion 120. Therefore, when an external force impacts the bending portion 115 to relatively move the supporting portion 200 abutting against the bending portion 115, the buffering material 300, such as the first spring 310 and the second spring 320, can be driven by the moving first resilient sheet 210 and the moving second resilient sheet 220 to compress and expand, so as to allow the supporting portion 200, such as the first resilient sheet 210 and/or the second resilient sheet 220, to move along the back surfaces S2 of the first portion 110 and the second portion 120.

According to the present embodiment, the first resilient piece 210 movable after being collided can be directly or indirectly fixedly connected to the back surface S2 of the first portion 110, and the second resilient piece 220 movable after being collided can be directly or indirectly fixedly connected to the back surface S2 of the second portion 120. For example, the first elastic sheet 110 and the second elastic sheet 120 (the supporting portion 200) may be directly and fixedly connected to the back surface S2 of the first portion 110 and the back surface S2 of the second portion 120, respectively, or may be indirectly and fixedly connected to the back surface S2 of the first portion 110 and the back surface S2 of the second portion 120, respectively, through the intermediary of the back film 920 for supporting the flexible substrate 100. However, the above are only examples, and the other intermediate film layers that can be disposed between the back surface S2 of the flexible substrate 100 and the first elastic sheet 110 and the second elastic sheet 120 (the supporting portion 200) are not limited to the examples described above.

Next, referring to fig. 7 which is a schematic view of the display device 20 viewed from above, the display device 20 having the above-described configuration may be additionally assembled with a chassis 800. For the sake of brevity, the components other than the buffering mechanism 2000 are only schematically drawn to illustrate the flexible substrate 100 and the chassis 800 without showing the components such as the back film 920, so as to compare the corresponding positions with fig. 6.

Referring to fig. 8 of a side view of the side view buffering mechanism 2000, in the buffering mechanism 2000, the first spring 310 may be wound around at least a portion of the first elastic sheet 210, and the second spring 320 may be wound around at least a portion of the second elastic sheet 220, so that the overall movement of the first elastic sheet 210 and the second elastic sheet 220 is more stable according to the compression and extension of the first spring 310 and the second spring 320. However, this is merely an example, and both ends of the first spring 310 or the second spring 320 are respectively connected to the first resilient plate 210 or the second resilient plate 220 and the components such as the base member 500, the buffering material 300 of the present invention, such as the first spring 310 or the second spring 320, may not wind the first resilient plate 210 or the second resilient plate 220 but only extend along the first resilient plate 210 or the second resilient plate 220, so that the components in the display device 20 can be more flexibly configured and assembled.

Next, a display device 30 according to still another embodiment of the present invention will be explained with reference to fig. 9. Accordingly, the display device 30 is substantially the same as the display device 20 described with reference to fig. 6 to 8, and only the differences from the display device 20 will be described below, while other details are omitted or generally taken.

As shown in fig. 9, the display device 30 also has a buffer mechanism 3000 similar to the buffer mechanism 2000 of the display device 20. Further, the base member 500 of the buffering mechanism 3000, i.e. the carrier 520 facing the first elastic sheet 210, may have a first surface H1. The first surface H1 may have at least one first sliding groove G1. The plurality of first sliding grooves G1 may extend along the extending direction of the first resilient pieces 210. In the above, the first sliding groove G1 is provided to reduce the resistance when the first elastic sheet 210 moves, and improve the effect of relieving the stress.

According to some embodiments, the first chutes G1 may be symmetrically disposed on the stage 520, for example, an even number of the first chutes G1 are symmetrically disposed on the stage 520, so that the force applied by the first elastic pieces 210 is more uniform when the first elastic pieces move along the stage 520. However, the above description is only an example and the present invention is not limited thereto, as the first elastic sheet 210 can move along the stage 520.

Referring to fig. 10A, in an embodiment, the display device 40 also has a buffer mechanism 4000 similar to the buffer mechanism 2000 of the display device 20. Accordingly, the base member 500 of the damping mechanism 4000, i.e., the carrier 520 facing the first resilient sheet 210, may have a first surface H1, and facing the second resilient sheet 220 may have a second surface H2. The first surface H1 may have at least one first groove G1 and the second surface H2 may have at least one second groove G2. The first sliding grooves G1 and the second sliding grooves G2 can extend along the extending directions of the first resilient pieces 210 and the second resilient pieces 220, respectively. Further, the first resilient plate 210 has at least one first protrusion 615 protruding relative to the plurality of first sliding grooves G1 and embedded in the plurality of first sliding grooves G1, and the second resilient plate 220 has at least one second protrusion 625 protruding relative to the plurality of second sliding grooves G2 and embedded in the plurality of second sliding grooves G2.

Next, referring to fig. 10B again, in another embodiment, the display device 50 also has a buffer mechanism 5000 similar to the buffer mechanism 4000 of the display device 40. The difference between the display device 50 and the display device 40 is that there is no at least one first protrusion 615 protruding from and embedded in the first chutes G1 and no at least one second protrusion 625 protruding from and embedded in the second chutes G2. As described above, in the display device 50, at least one ball 605 is disposed in the plurality of first chutes G1 and/or the plurality of second chutes G2 instead.

As described above, the structure facilitates the first resilient plate 210 and the second resilient plate 220 to move along the first sliding groove G1 and the second sliding groove G2 of the carrier 520 respectively no matter the first projection 615/the second projection 625 or the ball 605 is provided. In this way, the resistance of the first resilient sheet 210 and/or the second resilient sheet 220 during movement can be reduced, and the stress relief effect can be improved.

In addition, in some embodiments, as shown in fig. 10A and 10B, to avoid interference, the first spring 310 and/or the second spring 320 may be disposed away from the supporting end 205 with respect to the first chutes G1 and/or the second chutes G2, respectively.

The embodiments illustrated by fig. 10A and 10B are merely exemplary and other variations are possible according to other embodiments of the present invention. For example, the first bump 615 may be provided for the first runner G1 and the ball 605 may be provided for the second runner G2, or vice versa. In addition, it is also possible to provide a structure such as a bump or a ball for the sliding groove on one surface, and not provide a related matching component for the sliding groove on the other surface. Or, the sliding groove can be arranged on one surface, the sliding groove is not arranged on the other surface, and the related mechanism is arranged in the sliding groove correspondingly. As mentioned above, the present invention is not limited to the embodiments described in detail herein.

Hereinafter, a flow of a reaction action of the display device 50 when subjected to an external force collision according to an embodiment will be described with reference to fig. 11A to 11C and fig. 12.

As described above, referring to fig. 11A, 11B and 12, when the display device 50 shown in fig. 10B is subjected to the external force F at the side edge P1, the external force F presses the bending portion 115 of the flexible substrate 100 to deviate from the reference line L3 that is not pressed to align. At this time, referring to fig. 12 together with fig. 11A and 11B, the external force F presses the supporting end 205 formed by the curved ends 215 and 225 of the first elastic sheet 210 and the second elastic sheet 220, and is converted into the elastic force of the curved ends 215 and 225. For example, the curved ends 215 and 225 may have a predetermined spring constant K1, such as but not limited to K1: 100-500N/m. Then, the stress that is not buffered and converted is continuously applied, so that the first elastic sheet 210 and the second elastic sheet 220 respectively slide along the first surface H1 and the second surface H2 of the carrier 520 and move along the direction of the external force F opposite to the side edge P1. For example, the carrier 520 slides with the aid of balls 605 set in the first and second chutes G1 and G2. Therefore, partial stress can be absorbed by the buffer of the slide rail mechanism established by the first elastic sheet 210, the second elastic sheet 220 and the carrier 520. For example, the slide rail mechanism formed by the first elastic piece 210, the second elastic piece 220 and the carrier 520 may have a predetermined damping coefficient C, such as but not limited to C: 10-100ns/m, and may absorb and relieve part of the stress. Then, the stress that is not absorbed by the buffer will press the buffer materials, such as the first spring 310 and the second spring 320, along with the movement of the first elastic sheet 210 and the second elastic sheet 220, so as to be converted into elastic force to convert and relieve part of the stress. For example, the first spring 310 and the second spring 320 may have a predetermined elastic coefficient K2, such as but not limited to K2: 100-1000N/m.

Finally, referring to fig. 11C and 12, as the first elastic sheet 210 and the second elastic sheet 220 of the supporting portion 200 move along the carrier 520 in the direction opposite to the side edge P1 and compress the elastic force accumulated by the first spring 310 and the second spring 320 to rebound, the first spring 310 and the second spring 320 are stretched again, and the first elastic sheet 210 and the second elastic sheet 220 are pulled to move through the connection point 11 fixed to the first elastic sheet 210 and the second elastic sheet 220. Therefore, the first elastic piece 210 and the second elastic piece 220 can move back towards the side edge P1 along the first surface H1 and the second surface H2 of the carrier 520, so that the supporting end 205 formed by the first elastic piece 210 and the second elastic piece 220 and the bending portion 115 of the flexible substrate 100 supported by the supporting end can return to the original aligned reference line L3 again.

During the process of moving to the recovery position after being collided by the external force F, the base member 500, such as the stage 520, may be substantially continuously aligned with the reference line L4 without moving. That is, the supporting portions 200, such as the first elastic piece 210 and the second elastic piece 220, and the buffering materials, such as the first spring 310 and the second spring 320, can change positions relative to the base member 500, and the base member 500 can be fixed without moving relatively. However, the above are only examples, and as long as the supporting portions 200, such as the first resilient sheet 210 and the second resilient sheet 220, and the buffering materials, such as the first spring 310 and the second spring 320, can change positions relative to the base member 500, in some cases, the base member 500 may also be displaced along with the collision.

With the above arrangement and reaction actions, according to an embodiment, the stress pressure experienced by the flexible substrate 100 and the entire display device 50 on the reference line L3 can be reduced to 1/8 of the external force F.

Hereinafter, a flow of a reaction action of the display device 50 according to another embodiment when it is collided with the external force F will be described further with reference to fig. 13A to 13D.

As described above, referring to fig. 13A and 13B, when the display device 50 shown in fig. 10B is subjected to an external force F at the lower half of the side edge P1, the external force F presses the bending portion 115 of the flexible substrate 100 to deviate from the original alignment reference line L3 without being pressed. At this time, the external force F only presses the second elastic piece 220, and the curved end 225 of the second elastic piece 220 is converted into an elastic force. Then, the stress not buffered and converted is continuously applied, so that the second elastic sheet 220 slides along the second surface H2 of the carrier 520 and moves along the direction of the external force F opposite to the side edge P1. For example, the carrier 520 slides with the aid of balls 605 set in the second chute G2. Therefore, the sliding rail mechanism formed by the second elastic sheet 220 and the carrier 520 can absorb part of the stress. Then, the stress that is not absorbed by the buffer will press the buffer material, such as the second spring 320, along with the movement of the second resilient sheet 220, so as to be converted into an elastic force to convert and relieve part of the stress.

With reference to fig. 13B and 13C, since the flexible substrate 100 may be integrally formed, and the first elastic piece 210 and the second elastic piece 220 are respectively and directly or indirectly fixed to the first portion 110 and the second portion 120 of the flexible substrate 100, the first elastic piece 210 may also follow the movement shown in fig. 13C. In detail, when the second resilient sheet 220 is forced to move in a direction opposite to the side edge P1, the second portion 120 fixedly connected to the second resilient sheet 220 moves in a direction opposite to the side edge P1. Therefore, as the second portion 120 moves, the bending portion 115 moves downward counterclockwise, so that the upper first portion 110 moves toward the side edge P1. Based on the movement of the first portion 110 of the flexible substrate 100, the first elastic piece 210 fixedly connected thereto also moves toward the side edge P1.

Based on the above arrangement and reaction actions, the first spring 310 is stretched by being pulled by the first resilient sheet 210, and the second spring 320 is compressed by being pressed by the second resilient sheet 220. This converts the stress into an accumulated elastic force. Finally, referring to fig. 13C and 13D, the accumulated elastic force causes the first spring 310 to retract again and the second spring 320 to extend again, so as to pull the displaced first elastic piece 210 and the displaced second elastic piece 220 back to the original position. Specifically, the first resilient plate 210 moves toward the direction opposite to the side edge P1 as the first spring 310 retracts again, and the second resilient plate 220 moves toward the side edge P1 as the second spring 320 expands again. Therefore, the supporting end 205 composed of the first elastic piece 210 and the second elastic piece 220 and the bending portion 115 of the flexible substrate 100 supported thereby can return to the original alignment reference line L3 again

During the process of moving to the recovery position after being collided by the external force F, the base member 500, such as the stage 520, may be substantially continuously aligned with the reference line L4 without moving. However, in some cases, the base member 500 may also be displaced in response to the collision. The above-described situation is the same as or similar to the above-described embodiments, and will not be described herein again.

Next, a flow of a reaction action of the display device 50 according to still another embodiment of the present invention when it is collided by the external force F will be described with reference to fig. 14A to 14D.

As described above, the difference in the operation of fig. 14A to 14D is that the display device 50 is subjected to the impact of the external force F on the upper half of the side edge P1, as compared with the above-described fig. 13A to 13D. Therefore, referring to fig. 14A and 14B, the external force F presses the bending portion 115 of the flexible substrate 100 to deviate from the reference line L3 that is not pressed to align, and the first elastic piece 210 slides along the first surface H1 of the stage 520 to move along the direction of the external force F opposite to the side edge P1. Then, the stress that is not absorbed by the buffer will press the buffer material, such as the first spring 310, along with the movement of the first elastic sheet 210. With continued reference to fig. 14B and 14C, under the above-mentioned action, the first portion 110 fixedly connected to the first resilient piece 210 moves toward the direction opposite to the side edge P1. Therefore, as the first portion 110 moves, the bending portion 115 moves upward clockwise, and the lower second portion 120 moves toward the side edge P1. Further, based on the movement of the second portion 120 of the flexible substrate 100, the second elastic piece 220 fixedly connected thereto also moves toward the side edge P1.

Based on the above arrangement and reaction actions, the first spring 310 is compressed due to being pressed by the first resilient sheet 210, and the second spring 320 is stretched due to being pulled by the second resilient sheet 220. Finally, referring to fig. 14C and 14D, the accumulated elastic force causes the first spring 310 to re-expand and the second spring 320 to re-retract, so as to re-pull the displaced first resilient sheet 210 and the displaced second resilient sheet 220 to return to the original position. Specifically, the first resilient sheet 210 moves toward the side edge P1 as the first spring 310 is extended again, and the second resilient sheet 220 moves toward the opposite direction to the side edge P1 as the second spring 320 is retracted again. Therefore, the supporting end 205 composed of the first elastic piece 210 and the second elastic piece 220 and the bending portion 115 of the flexible substrate 100 supported thereby can return to the original alignment reference line L3 again

During the process of moving to the home position after being collided by the external force F, the base member 500, such as the stage 520, may be substantially continuously aligned with the reference line L4 without moving. However, in some cases, the base member 500 may also be displaced in response to the collision. The above situation is the same as or similar to the above-mentioned embodiments, and will not be described herein again.

Hereinafter, a display device 60 according to an embodiment of the present invention will be described with reference to fig. 15A and 15B, and components or details identical or similar to those of the above-described embodiment will be omitted or simply brought about.

As described above, the display device 60 may have a structure for folding and accommodating the flexible substrate 100 at both the side edge P1 and the side edge P2. Specifically, the flexible substrate 100 may further include a third portion 130, a fourth portion 140, and an opposite bending portion 135 between the third portion 130 and the fourth portion 140. The third portion 130, the fourth portion 140 and the opposite bending portion 135 may be similar to the first portion 110, the second portion 120 and the bending portion 115, and are bent at the side edge P2, so that the back surfaces S2 of the third portion 130 and the fourth portion 140 face each other. When the back surfaces S2 of the third portion 130 and the fourth portion 140 face each other, the opposite bending portion 135 extends between the third portion 130 and the fourth portion 140 in a bending manner.

In some embodiments, the second portion 120, the bending portion 115, the first portion 110, the third portion 130, the opposite bending portion 135 and the fourth portion 140 of the flexible substrate 100 may be integrally formed as a film. Wherein the first portion 110 is adjacently connected to the third portion 130.

In the display device 60 shown in fig. 15A and 15B, the buffer mechanism 6000 disposed in the space R surrounded by the back surface S2 of the flexible base material 100 may further include the opposite support portion 400 having the opposite support end portion 405 and the opposite main body portion 450 and the opposite buffer material 600, compared to the buffer mechanism 1000 shown in fig. 1. The opposite support end 405 abuts against the back surface S2 of the opposite bent portion 135.

As described above, the arrangement and operation of the opposite supporting portion 400 and the opposite cushioning member 600 may be substantially the same as or similar to the supporting portion 200 and the cushioning member 300 in fig. 15A and 15B except for the direction opposite thereto. Specifically, the opposite direction buffer material 600 may be, for example, an opposite direction body spring 650, and one end (for example, the connection point 13) relatively close to the opposite direction supporting end 405 may be connected to the opposite direction supporting portion 400. Thus, the opposite direction buffer material 600 can be compressed and expanded to allow the opposite direction supporting portion 400 to move along the back surfaces S2 of the third portion 130 and the fourth portion 140.

In this embodiment, the other end (e.g., the connection point 14) of the opposite direction buffer material 600 relatively far away from the opposite direction supporting end 405 may be connected to the base member 500, so that the opposite direction supporting portion 400 is connected to the base member 500 through the opposite direction buffer material 600 in an unfixed manner. That is, the supporting portion 200 and the opposite supporting portion 400 may be connected to the same base member 500, respectively.

Further, according to some embodiments, as shown in fig. 15B, since the support portion 200 and the opposite support portion 400 may move due to external force collision, the adjacent portions of the support portion 200 and the opposite support portion 400 have the staggered structure 700 that give way to each other. For example, the portion of the supporting portion 200 adjacent to the opposite supporting portion 400 may have a fork-shaped recess 720, and the portion of the opposite supporting portion 400 adjacent to the supporting portion 200 may have a column-shaped structure 740 capable of being received in the recess 720. Therefore, even if the support portion 200 and/or the opposite support portion 400 approach each other due to an external force collision, no structural interference occurs between the two, thereby reducing or avoiding damage or operational interference of the support portion 200 and the opposite support portion 400.

The staggered structure 700 comprising the recessed structures 720 and the pillar structures 740 is merely an example, and other embodiments according to the present invention can have various staggered structures 700 to achieve the above-mentioned objectives. Accordingly, the present invention is not limited thereto.

Next, a display device 70 according to still another embodiment of the present invention will be described with reference to fig. 16A and 16B, and the same or similar components or details as those of the above-described embodiment will be omitted or simply brought.

The display device 70 shown in fig. 16A and 16B is substantially the same as the display device 60, and differs in that the cushioning mechanism 7000 of the display device 70 further includes a pair of facing base members 500'. In the above, the other end of the opposite buffer material 600 relatively far from the opposite support end 405 is connected to the opposite base member 500', so that the opposite support part 400 is non-fixedly connected to the opposite base member 500' through the opposite buffer material 600. That is, the supporting portion 200 and the opposite supporting portion 400 can be connected to different base members 500 and 500', respectively.

According to the embodiment shown in fig. 16A and 16B, the display device 70 is bendable based on the intersection of the first portion 110 and the third portion 130 based on its structure. Specifically, since the components of the damping mechanism 7000 are not connected to each other at the boundary between the first portion 110 and the third portion 130, the damping mechanism 7000 can be bent at the boundary between the first portion 110 and the third portion 130. In addition to the buffer mechanism 7000, the display device 70 itself may be designed correspondingly if other components are further provided. For example, hinge structures 750 may be provided to facilitate bending, but the invention is not limited thereto. Therefore, in addition to bending the receiving assembly and the flexible substrate 100 at the side edges P1 and P2 of the display device 70, the display device 70 may also be bent at the boundary between the first portion 110 and the third portion 130, so as to realize the flexible display device 70.

The above is merely an example of one embodiment according to the present invention, and in other embodiments, only a single flexible base member may be provided to realize the flexible display device. The present invention is not limited to the specific embodiments described above.

Hereinafter, a display device 80 according to still another embodiment of the present invention will be described with continued reference to fig. 17A and 17B, and components or details identical or similar to those of the above-described embodiment will be omitted or simply brought about.

As described above, the display device 80 may have a structure in which the flexible substrate 100 is folded and received at both the side edge P1 and the side edge P2, similarly to the

display devices

60 and 70 described above. The difference from the

display devices

60 and 70 is that the damping mechanism 8000 of the display device 80 is similar to the damping mechanism 5000 as shown in fig. 10B and may further include an opposite supporting portion 400 having an opposite supporting end 405 and an opposite damping member 600 compared to the damping mechanism 5000. The opposite supporting end 405 abuts against the back surface S2 of the opposite bending portion 135. In the above, the opposite supporting portion 400 is composed of the opposite first elastic sheet 410 and the opposite second elastic sheet 420, the opposite supporting end 405 is composed of the opposite curved ends 415 and 425, and the opposite buffer material 600 is the opposite first spring 610 and the opposite second spring 620 corresponding to the opposite first elastic sheet 410 and the opposite second elastic sheet 420, respectively.

As described above, the arrangement and operation of the opposite supporting portion 400 and the opposite cushioning member 600 may be substantially the same as or similar to those of the supporting portion 200 and the cushioning member 300 in fig. 17A and 17B except for the opposite direction. With this structure, the opposite direction buffer material 600 can be compressed and extended to allow the opposite direction supporting portion 400 to move along the back surfaces S2 of the third portion 130 and the fourth portion 140.

In this embodiment, the other end of the opposite direction buffer material 600 relatively far away from the opposite direction supporting end 405 can be connected to the base member 500, so that the opposite direction supporting portion 400 is connected to the base member 500 through the opposite direction buffer material 600 in an unfixed manner. That is, the supporting portion 200 and the opposite supporting portion 400 may be connected to the same base member 500, respectively.

In addition, as shown in fig. 17B, the portions of the supporting portion 200 and the opposing supporting portion 400 adjacent to each other may also have offset staggered structures 700 (such as, but not limited to, the recessed structures 720 and the pillar structures 740). Therefore, even if the support portion 200 and/or the opposite support portion 400 approach each other due to an external force collision, no structural interference occurs between the two, thereby reducing or avoiding damage or operational interference of the support portion 200 and the opposite support portion 400.

Next, a display device 90 according to still another embodiment of the present invention will be described with reference to fig. 18A and 18B, and the same or similar components or details as those of the above-described embodiment will be omitted or simply carried forward.

The display device 90 shown in fig. 18A and 18B is substantially the same as the display device 80, and differs therefrom in that the buffer mechanism 9000 of the display device 90 further comprises an opposing base member 500'.

In the above, the other end of the opposite buffer material 600 relatively far from the opposite support end 405 is connected to the opposite base member 500', so that the opposite support part 400 is connected to the opposite base member 500' through the opposite buffer material 600 in an unfixed manner. That is, the supporting portion 200 and the opposite supporting portion 400 may be connected to different base members 500 and 500', respectively.

According to the embodiment shown in fig. 18A and 18B, the display device 90 is bendable based on the intersection of the first portion 110 and the third portion 130 based on its structure. Therefore, in addition to the side edges P1 and P2 of the display device 90 bending the receiving assembly and the flexible substrate 100, the display device 90 can also be bent at the boundary between the first portion 110 and the third portion 130, thereby realizing the flexible display device 90.

In addition, in the display device 90 shown in fig. 18A and 18B, compared with the display device 80, the recessed structure 720 'of the supporting portion 200 and the pillar-shaped structure 740' of the opposite supporting portion 400 may be offset from each other in the height direction (or thickness direction) as shown in fig. 18A, in addition to the offset in the length direction and the width direction as shown in fig. 18B. That is, the staggered structure 700' of the buffering mechanism 9000 may further have staggered yielding structures in different dimensions. Therefore, even if the support portion 200 and/or the opposite support portion 400 approach each other due to an external force collision, no structural interference occurs between the two, thereby reducing or avoiding damage or operational interference of the support portion 200 and the opposite support portion 400.

In addition, in some embodiments, as shown in fig. 18A, it may be designed such that the support portion 200 may be inserted into the corresponding spring of the opposite support portion 400 when moving, or vice versa, but the present invention is not limited thereto.

In summary, according to the display device of the embodiments of the present invention, the impact resistance at the bent end edge can be further improved. Therefore, deformation, dislocation, movement or damage of each component in the display device can be reduced or avoided under the condition of maintaining the expected appearance shape, so that the quality and the service life of the display device are improved.

The foregoing is only a few preferred embodiments of the invention. It should be noted that various changes and modifications can be made in the invention without departing from the spirit and principles of the invention. It should be apparent to those skilled in the art that the present invention is defined by the appended claims and that various changes, substitutions, combinations, modifications and alterations are possible without departing from the scope of the invention as defined by the appended claims.

Claims

1. A display device, comprising:

a flexible substrate having a first portion, a second portion and a bending portion between the first portion and the second portion, wherein the flexible substrate has a front surface and a back surface; when the back surfaces of the first part and the second part face each other, the bending part extends between the first part and the second part in a bending way; and

a cushioning mechanism, comprising:

a supporting part having a supporting end part, the supporting end part is abutted against the back surface of the bending part;

one end of the buffer material, which is relatively close to the end part of the support, is connected with the support part; wherein the cushioning material is capable of being compressed and expanded to allow the support portion to move along the back of the first portion and the second portion;

the buffer mechanism further comprises a base component, and the other end of the buffer material, which is relatively far away from the supporting end part, is connected with the base component, so that the supporting part is connected with the base component through the buffer material in a non-fixed manner;

wherein the support portion includes a main body portion extending from the support end portion along the back surfaces of the first portion and the second portion, and the base member is a frame surrounding the main body portion,

the frame is directly or indirectly fixedly connected to the back of the first part and the back of the second part; and is provided with

The buffer material comprises a main body spring, one end of the main body spring, which is relatively close to the supporting end part, is connected to the main body part, and the other end of the main body spring, which is relatively far away from the supporting end part, is connected to the frame.

2. The display apparatus of claim 1, wherein the supporting end is a curved supporting end.

3. The display device of claim 1, wherein the body spring is disposed in the frame around at least a portion of the body portion.

4. The display device according to claim 1, wherein the flexible substrate further comprises a third portion, a fourth portion and a pair of bending portions between the third portion and the fourth portion, wherein the first portion is adjacently connected to the third portion, and the pair of bending portions extends between the third portion and the fourth portion in a bending manner when the rear surfaces of the third portion and the fourth portion face each other,

wherein, this buffer gear further includes:

a pair of support parts having a pair of support ends, the support ends abutting against the back of the bent parts; and

an opposite buffer material, one end of the opposite buffer material relatively close to the opposite support end is connected with the opposite support part; the opposite direction buffer material can be compressed and stretched to allow the opposite direction supporting part to move along the back surfaces of the third part and the fourth part, and the other end of the opposite direction buffer material, which is relatively far away from the opposite direction supporting end part, is connected to the base component, so that the opposite direction supporting part is connected to the base component through the opposite direction buffer material in an unfixed way.

5. The display device according to claim 1, wherein the flexible substrate further comprises a third portion, a fourth portion and a pair of bending portions between the third portion and the fourth portion, wherein the first portion is adjacently connected to the third portion, and the pair of bending portions extends between the third portion and the fourth portion in a bending manner when the rear surfaces of the third portion and the fourth portion face each other,

wherein, this buffer gear further includes:

a pair of opposite support parts, which are provided with a pair of opposite support end parts, wherein the opposite support end parts are abutted against the back surfaces of the opposite bending parts;

an opposite buffer material, one end of the opposite buffer material relatively close to the opposite support end is connected with the opposite support part; wherein the opposite direction buffer material can be compressed and expanded to allow the opposite direction supporting part to move along the back surfaces of the third part and the fourth part, an

And the other end of the opposite buffer material, which is relatively far away from the opposite support end, is connected with the opposite base component, so that the opposite support part is connected with the opposite base component through the opposite buffer material in an unfixed way.

6. The display device of claim 5, wherein the display device is bendable based on a junction of the first portion and the third portion.

7. The display device according to claim 5 or 6, wherein adjacent portions of the support portion and the opposite support portion have staggered structures.

8. A display device, comprising:

a flexible substrate having a first portion, a second portion and a bending portion between the first portion and the second portion, wherein the flexible substrate has a front surface and a back surface; the bending part is bent to extend between the first part and the second part when the back surfaces of the first part and the second part face each other; and

a cushioning mechanism, comprising:

the buffer mechanism further comprises a base component, and the other end of the buffer material relatively far away from the supporting end part is connected with the base component, so that the supporting part is connected with the base component through the buffer material in a non-fixed way;

the supporting part comprises a first elastic sheet and a second elastic sheet, the base component is a carrying platform clamped between the first elastic sheet and the second elastic sheet, and the buffer material is provided with a first spring and a second spring.

9. The display device according to claim 8, wherein the first and second resilient sheets have curved ends, and the curved ends of the first and second resilient sheets are joined together to form the supporting end, and

wherein one end of the first spring relatively close to the supporting end part is connected with the first elastic sheet, the other end relatively far away from the supporting end part is connected on the carrying platform,

one end of the second spring, which is relatively close to the supporting end part, is connected to the second elastic sheet, and the other end of the second spring, which is relatively far away from the supporting end part, is connected to the carrying platform.

10. The display device according to claim 8, wherein the first resilient piece is directly or indirectly fixedly connected to the back surface of the first portion, and the second resilient piece is directly or indirectly fixedly connected to the back surface of the second portion, and

11. The display device of claim 8, wherein the first spring wraps around at least a portion of the first resilient sheet and the second spring wraps around at least a portion of the second resilient sheet.

12. The display device according to claim 8, wherein the carrier has a first surface facing the first elastic sheet, and,

the first surface is provided with at least one first sliding groove, the first sliding grooves extend along the extending direction of the first elastic sheet, and at least one ball is arranged in the first sliding grooves.

13. The display device according to claim 8, wherein the carrier has a first surface facing the first elastic sheet, and,

the first surface is provided with at least one first sliding groove, a plurality of first sliding grooves extend along the extending direction of the first elastic sheet,

the first elastic sheet is provided with at least one first bump which protrudes relative to the plurality of first sliding grooves and is embedded into the plurality of first sliding grooves.

14. The display apparatus according to claim 12 or 13, wherein the first spring is disposed away from the supporting end with respect to the plurality of first chutes.