CN114999330A - Folding mechanism and folding display device - Google Patents
Folding mechanism and folding display device Download PDFInfo
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- CN114999330A CN114999330A CN202210805657.XA CN202210805657A CN114999330A CN 114999330 A CN114999330 A CN 114999330A CN 202210805657 A CN202210805657 A CN 202210805657A CN 114999330 A CN114999330 A CN 114999330A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 78
- 238000005452 bending Methods 0.000 claims description 22
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
- G09F9/335—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]
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Abstract
The invention relates to a folding mechanism and a folding display device. In the section parallel to the plane formed by the first axis and the third axis, the second surface and/or the third surface of at least one arc-shaped fixed track is not perpendicular to the first side wall, so that when the folding display device is impacted, the pressure F applied to the arc-shaped fixed track by the arc-shaped sliding track is decomposed into a force parallel to the second surface and/or the third surface and a force perpendicular to the second surface and/or the third surface, the influence of the pressure F on the arc-shaped fixed track is reduced, the risk of undesirable phenomena such as deformation or fracture of the arc-shaped fixed track is reduced, and the service life of the folding display device is prolonged.
Description
Technical Field
The application relates to the technical field of display, in particular to a folding mechanism and a folding display device.
Background
An Organic Light Emitting Diode (OLED) is a photoelectric technology for realizing multi-color display by using reversible color change generated by an Organic semiconductor material under current drive. The OLED has the advantages of being light, thin, high in brightness, active in light emission, low in energy consumption, large in viewing angle, fast in response, flexible, wide in working temperature range, low in voltage requirement, high in power saving efficiency, fast in response, simple in structure, low in cost, almost infinite in contrast ratio, and the like, and is considered as a new generation display technology with the greatest development prospect.
Portable electronic devices such as mobile phones, media players, smart watches, in-vehicle displays and tablet computers are becoming more common today. Users often desire a device that can be conveniently placed in a pocket or purse or worn on the hand, but also has a larger display surface for easy viewing. Therefore, the foldable display device is popular among users due to its advantages of being foldable and convenient to carry.
As shown in fig. 1 and 2, most of the conventional folding display devices employ a folding mechanism 100 to connect two middle frames, and in order to achieve a specific folding track, the folding mechanism 100 needs to set a track 101 matching with the folding mechanism 100, and the track 101 includes a fixed track 1011 and a sliding track 1012. When the foldable display device is in a folded state, when the foldable display device is impacted, the fixed rail 1011 receives a pressure F from the sliding rail 1012, and since the fixed rail 1011 is perpendicular to the base 102, the overlapping portion between the fixed rail 1011 and the sliding rail 1012 is small, and the fixed rail 1011 is prone to deformation or fracture and other adverse phenomena under the action of the pressure F, which finally affects the use of the foldable display device.
Disclosure of Invention
The invention aims to provide a folding mechanism and a folding display device, which can solve the problems that a fixed rail in the existing folding structure is easy to deform or break and the like, and the use of the folding display device is finally influenced.
In order to solve the above problem, the present invention provides a folding mechanism including: a base having a first surface; the first surface of the base is recessed along a first axis to form two containing cavities; each accommodating cavity is provided with two first side walls which are parallel to a plane formed by the first shaft and a second shaft perpendicular to the first shaft, and each first side wall is provided with an arc-shaped fixing rail; the two arc-shaped sliding rails are respectively connected with the arc-shaped fixed rails in the containing cavities in a sliding manner; each arc-shaped fixed track is provided with a second surface and a third surface, and the second surface and the third surface are arc surfaces; the second surface and/or the third surface of at least one of the arcuate securing rails is non-perpendicular to the first sidewall in a cross-section taken along a plane parallel to the first axis and perpendicular to a third axis of the first sidewall.
Further, in a cross section parallel to a plane formed by the first axis and the third axis, the second surface of at least one of the arcuate fixation rails includes an angle in a range of 30 ° to 80 ° and 100 ° to 150 ° with the first sidewall; and/or the angle between the third surface of at least one of the curved fixing rails and the first side wall is in the range of 30-80 degrees and 100-150 degrees.
Further, the second surface and the third surface of at least one of the arc-shaped fixing rails are symmetrical to each other in a cross section parallel to a plane formed by the first axis and the third axis.
Further, in a cross section parallel to a plane formed by the first axis and the third axis, the second surface and the third surface of at least one of the arc-shaped fixing rails are parallel to each other.
Further, on a cross section parallel to a plane formed by the first shaft and the third shaft, the second surface and the third surface of at least one of the arc-shaped fixing rails are not parallel, and an included angle between the second surface and the first side wall of at least one of the arc-shaped fixing rails is not equal to an included angle between the third surface and the first side wall of the arc-shaped fixing rail.
Furthermore, on a section parallel to a plane formed by the first shaft and the third shaft, the two arc-shaped fixed rails in the same accommodating cavity are symmetrical to each other.
Furthermore, on a section parallel to a plane formed by the first shaft and the third shaft, included angles between the second surfaces of the two arc-shaped fixed rails in the same accommodating cavity and the first side wall are not equal; and/or on the section parallel to the plane formed by the first shaft and the third shaft, the included angles between the third surfaces of the two arc-shaped fixed rails in the same containing cavity and the first side wall are unequal.
Further, the folding mechanism further comprises: the two supporting plates are respectively and fixedly connected to the two arc-shaped sliding rails; both support plates have support surfaces; when the folding mechanism is in a folded state, the supporting surfaces of the two supporting plates are arranged oppositely, and the arc-shaped sliding track part is positioned in the accommodating cavity; when the folding mechanism is in an unfolding state, the supporting surfaces of the two supporting plates are parallel and level with each other, and the arc-shaped sliding rails are all located in the accommodating cavity.
In order to solve the above problems, the present invention provides a folding display device, comprising: the folding mechanism further comprises a flexible display screen arranged on the folding mechanism.
Further, the flexible display screen includes: the bending device comprises two non-bending areas and a bending area connected between the two non-bending areas; the two non-bending areas are respectively fixed on the two supporting plates of the folding mechanism; when the folding display device is in a folding state, the flexible display screens of the two non-bending areas are in a plane, and the flexible display screens of the bending areas are in a curved surface; when the folding display device is in an unfolding state, the flexible display screen is unfolded to be in a plane.
The invention has the advantages that: in the section parallel to the plane formed by the first axis and the third axis, the second surface and/or the third surface of at least one arc-shaped fixed rail is not perpendicular to the first side wall, so that when the folding display device is impacted, the pressure F applied to the arc-shaped fixed rail by the arc-shaped sliding rail is decomposed into a force parallel to the second surface and/or the third surface and a force perpendicular to the second surface and/or the third surface, the influence of the pressure F on the arc-shaped fixed rail is reduced, the risk of undesirable phenomena such as deformation or fracture of the arc-shaped fixed rail is reduced, and the service life of the folding display device is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a side view of a prior art folding mechanism;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a top view of a base of a prior art folding mechanism;
fig. 4 is a perspective view of the folding mechanism of embodiment 1 in a folded state;
FIG. 5 is a perspective view of the folding mechanism base of embodiment 1;
FIG. 6 is a top view of the folding mechanism base of embodiment 1;
FIG. 7 is a sectional view taken along line B-B in FIG. 4 in accordance with embodiment 1;
FIG. 8 is a C-C sectional view of FIG. 4 of embodiment 1;
fig. 9 is a first perspective view of the folding mechanism of embodiment 1 in an unfolded state;
fig. 10 is a second perspective view of the folding mechanism of embodiment 1 in an unfolded state;
fig. 11 is a perspective view of the folding display device of embodiment 1 in a folded state;
fig. 12 is a perspective view of the folding display device of embodiment 1 in an unfolded state;
FIG. 13 is a top view of the folding mechanism base of embodiment 2;
FIG. 14 is a sectional view taken along line B-B in FIG. 4 in accordance with embodiment 2;
FIG. 15 is a top view of the folding mechanism base of embodiment 3;
FIG. 16 is a sectional view taken along line B-B in FIG. 4 in accordance with embodiment 3.
Description of reference numerals:
1000. folding the display device; 200. A folding mechanism;
300. a flexible display screen;
1. a base; 2. An arc-shaped fixed track;
3. an arc-shaped sliding track; 4. A support plate;
5. a hinge assembly;
11. a first surface; 12. An accommodating cavity;
121. a first side wall; 122. A second side wall;
21. a second surface; 22. A second surface;
31. an arc-shaped chute; 51. A support;
52. a connecting shaft; 53. A rotating plate;
54. a first gear; 55. A second gear;
56. a friction plate; 57. Hovering the male end;
58. hovering the parent end; 59. An elastic member.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to make and use the present invention in a complete manner, and is provided for illustration of the technical disclosure of the present invention so that the technical disclosure of the present invention will be more clearly understood and appreciated by those skilled in the art how to implement the present invention. The present invention may, however, be embodied in many different forms of embodiment, and the scope of the present invention should not be construed as limited to the embodiment set forth herein, but rather construed as being limited only by the following description of the embodiment.
The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc., are only directions in the drawings, and are used for explaining and explaining the present invention, but not for limiting the scope of the present invention.
In the drawings, elements that are structurally identical are represented by like reference numerals, and elements that are structurally or functionally similar in each instance are represented by like reference numerals. In addition, the size and thickness of each component shown in the drawings are arbitrarily illustrated for convenience of understanding and description, and the present invention is not limited to the size and thickness of each component.
Example 1
Fig. 4 is a perspective view of the folding mechanism of embodiment 1 in a folded state. As shown in fig. 4, the present embodiment provides a folding mechanism 200. The folding mechanism 200 includes: base 1, four arc fixed track 2, two arc slip tracks 3 and two backup pads 4.
Fig. 5 is a perspective view of the folding mechanism base of embodiment 1, and fig. 6 is a plan view of the folding mechanism base of embodiment 1. As shown in fig. 5 and 6, the base 1 has a first surface 11.
Fig. 4 is a perspective view of the folding mechanism of embodiment 1 in a folded state. Fig. 5 is a perspective view of the folding mechanism base of embodiment 1, and fig. 6 is a plan view of the folding mechanism base of embodiment 1. As shown in fig. 4, 5 and 6, the first surface 11 of the base 1 is recessed along the first axis Z to form two receiving cavities 12. In this embodiment, the accommodating cavity 12 is a through hole penetrating through the base 1, and in other embodiments, the accommodating cavity 12 may be a groove not penetrating through the base 1.
Fig. 4 is a perspective view of the folding mechanism of embodiment 1 in a folded state. Fig. 5 is a perspective view of the folding mechanism base of embodiment 1, and fig. 6 is a plan view of the folding mechanism base of embodiment 1. As shown in fig. 4, 5, and 6, each of the receiving cavities 12 has two first sidewalls 121 and two second sidewalls 122. The two first side walls 121 are parallel to a plane formed by said first axis Z and a second axis X perpendicular to said first axis Z, and the two second side walls 122 are parallel to a plane formed by said first axis Z and a third axis Y perpendicular to said first side walls 121.
Fig. 4 is a perspective view of the folding mechanism of embodiment 1 in a folded state. Fig. 5 is a perspective view of the folding mechanism base of embodiment 1, and fig. 6 is a plan view of the folding mechanism base of embodiment 1. As shown in fig. 4, 5, and 6, each of the first sidewalls 121 has an arc-shaped fixing rail 2. In this embodiment, the arc fixing rail 2 and the base 1 are integrally formed, and in other embodiments, the arc fixing rail 2 may be fixed on the first sidewall 121 of the base 1 in other manners.
Fig. 4 is a perspective view of the folding mechanism of embodiment 1 in a folded state. Fig. 5 is a perspective view of the folding mechanism base of embodiment 1, and fig. 6 is a plan view of the folding mechanism base of embodiment 1. As shown in fig. 4, 5 and 6, each of the arc-shaped fixing rails 2 has a second surface 21 and a third surface 22. The second surface 21 and the third surface 22 are both arc surfaces.
Wherein, in a section parallel to the plane formed by the first axis Z and the third axis Y, the second surface 21 and/or the third surface 22 of at least one of the arc-shaped fixing rails 2 is non-perpendicular to the first side wall 121. In particular, in a section parallel to the plane formed by the first axis Z and the third axis Y, the angle between the second surface 21 of at least one of the curved fixing rails 2 and the first side wall 121 ranges from 30 ° to 80 ° and from 100 ° to 150 °; and/or the angle between said third surface 22 of at least one of said arcuate fixing tracks 2 and said first side wall 121 ranges from 30 ° to 80 ° and from 100 ° to 150 °.
Fig. 4 is a perspective view of the folding mechanism of embodiment 1 in a folded state. Fig. 5 is a perspective view of the folding mechanism base of embodiment 1, and fig. 6 is a plan view of the folding mechanism base of embodiment 1. FIG. 7 is a sectional view taken along line B-B in FIG. 4 in accordance with embodiment 1. As shown in fig. 4, 5, 6 and 7, in the present embodiment, the second surface 21 and the third surface 22 of each of the arc-shaped fixing rails 2 are not perpendicular to the first sidewall 121.
Wherein, in a section parallel to the plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of at least one of the arc-shaped fixing rails 2 are symmetrical to each other; and/or said second surface 21 and said third surface 22 of at least one of said arched fixing rails 2 are parallel to each other in a section parallel to the plane constituted by said first axis Z and said third axis Y; and/or in a cross section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of at least one of the arc-shaped fixing rails 2 are not parallel, and an included angle between the second surface 21 and the first sidewall 121 of at least one of the arc-shaped fixing rails 2 is not equal to an included angle between the third surface 22 and the first sidewall 121 of the arc-shaped fixing rail 2.
As shown in fig. 7, in the present embodiment, in a section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of one of the arc-shaped fixing rails 2 are parallel to each other; the second surface 21 and the third surface 22 of one of the arc-shaped fixing rails 2 are symmetrical to each other.
In other embodiments, the second surface 21 and the third surface 22 of each of the arc-shaped fixing rails 2 are symmetrical to each other in a section parallel to a plane formed by the first axis Z and the third axis Y; or in a section parallel to the plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of each of the arc-shaped fixing rails 2 are parallel to each other; or on a section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of each of the arc-shaped fixing rails 2 are not parallel, and an included angle between the second surface 21 and the first sidewall 121 of at least one of the arc-shaped fixing rails 2 is not equal to an included angle between the third surface 22 and the first sidewall 121 of the arc-shaped fixing rail 2.
In this embodiment, on a cross section parallel to a plane formed by the first axis Z and the third axis Y, included angles between the second surfaces 21 of the two arc-shaped fixing rails 2 in the same accommodating cavity 12 and the first side wall 121 are not equal; and/or on a section parallel to a plane formed by the first axis Z and the third axis Y, included angles between the third surfaces 22 of the two arc-shaped fixing rails 2 in the same accommodating cavity 12 and the first side wall 121 are not equal.
In the present embodiment, as shown in fig. 7, on a cross section parallel to a plane formed by the first axis Z and the third axis Y, the included angles between the second surfaces 21 of the two arc-shaped fixing rails 2 in the same receiving cavity 12 and the first side wall 121 are equal. On the cross section parallel to the plane formed by the first axis Z and the third axis Y, the included angles between the third surfaces 22 of the two arc-shaped fixing rails 2 in the same accommodating cavity 12 and the first side wall 121 are not equal. In summary, when the folding mechanism 200 is impacted, the pressure F applied by the arc-shaped sliding rail 3 to the arc-shaped fixed rail 2 is decomposed into a force F1 parallel to the second surface 21 and the third surface 22 and a force F2 perpendicular to the second surface 21 and the third surface 22, so as to reduce the influence of the pressure F on the arc-shaped fixed rail 2, reduce the risk of undesirable phenomena such as deformation or fracture of the arc-shaped fixed rail 2, and prolong the service life of the folding mechanism 200.
As shown in fig. 4, two arc-shaped sliding rails 3 are slidably connected to the arc-shaped fixing rails 2 in the two receiving cavities 12, respectively.
As shown in fig. 4, each of the arc-shaped sliding tracks 2 has two arc-shaped sliding grooves 31 matching with the corresponding arc-shaped fixed track 2 in the receiving cavity 12.
Fig. 4 is a perspective view of the folding mechanism of embodiment 1 in a folded state; FIG. 8 is a sectional view taken along line C-C in FIG. 4 in accordance with example 1; fig. 9 is a perspective view of the folding mechanism of embodiment 1 in an unfolded state. As shown in fig. 4, 8 and 9, two support plates 4 are respectively fixedly connected to the two arc-shaped sliding rails 3. Both support plates 4 have a support surface 41. Through arc slip track 3 for the slip of arc fixed track 2, arc slip track 3 drives the expansion and the folding of backup pad 4. When the folding mechanism 200 is in a folded state, the supporting surfaces 41 of the two supporting plates 4 are disposed oppositely, and the arc-shaped sliding track 3 is partially located in the accommodating cavity 12. When the folding mechanism 200 is in the unfolded state, the supporting surfaces 41 of the two supporting plates 4 are flush with each other, and the arc-shaped sliding rails 3 are all located in the accommodating cavities 12.
As shown in fig. 10, the folding mechanism 200 further includes a hinge assembly 5. Wherein, hinge subassembly 5 includes: the suspension device comprises a bracket 51, two connecting shafts 52, two rotating plates 53, two first gears 54, two second gears 55, a friction plate 56, two hovering male ends 57, two hovering female ends 58 and two elastic pieces 59.
The two ends of the bracket 51 have two through holes 511 and two receiving slots 512.
The two connecting shafts 52 respectively penetrate through the two through holes 511 of the bracket 51 to be connected to the base 1, so that the bracket 51 and the base 1 are fixed.
Wherein, the two rotating plates 53 are respectively rotatably sleeved on the two connecting shafts 52. The two rotating plates 53 each have a sliding shaft 531 thereon. When the support plate 4 of the folding structure 200 rotates, the support plate 4 drives the rotation plate 53 to rotate relative to the connection shaft 52, and the sliding shaft 531 on the rotation plate can slide relative to the support plate 4.
The two first gears 54 are respectively sleeved on the two connecting shafts 52 and located between the rotating plate 53 and the base 1. The two first gears 54 rotate in opposite directions.
Wherein, one side of the base 1 near the hinge assembly 5 is also provided with two protrusions (not shown). The two protrusions on the base 1 are inserted into the two receiving slots 512 of the bracket 51, respectively.
The two second gears 55 are respectively sleeved on the two protrusions (not shown) and located between the receiving groove 512 and the base 1. The two second gears 55 rotate in opposite directions. The first gear 54 and the second gear 55 which are close to each other rotate in opposite directions.
The friction plate 56 is sleeved on the outer side walls of the two connecting shafts 52 and located between the rotating plate 53 and the first gear 54, and is used for increasing the friction force between the rotating plate 53 and the first gear 54, which is beneficial to keeping a certain angle between the two support plates 4 of the folding mechanism 200. The friction plate 56 is also sleeved on the outer side walls of the two accommodating grooves 512.
Wherein, the two hovering male ends 57 are respectively disposed on one sides of the two rotating plates 53 far away from the base 1.
The two hovering female ends 58 are respectively sleeved on the two connecting shafts 52 and respectively matched with the two hovering male ends 57.
The two elastic members 59 are respectively sleeved on the two connecting shafts 52 and connected between the support 1 and the hovering female end 58.
As shown in fig. 10, in the present embodiment, when the folding mechanism 200 is folded, the left rotating plate 53 drives the left first gear 54 to rotate clockwise, and the left first gear 54 drives the left second gear 55 to rotate counterclockwise; the right rotating plate 53 drives the right first gear 54 to rotate counterclockwise, and the right first gear 54 drives the right second gear 55 to rotate clockwise.
As shown in fig. 10, when the two rotating plates 53 rotate to a certain angle, the elastic member 59 presses the hovering female end 58, and the hovering female end 58 presses the hovering male end 57, so that the two rotating plates 53 remain still. Fig. 11 is a perspective view of the folding display device of embodiment 1 in a folded state; fig. 11 is a perspective view of the folding display device of embodiment 1 in an unfolded state. As shown in fig. 10 and 11, the present embodiment also provides a foldable display device 1000. The folding display device 1000 includes: a folding mechanism 200 and a flexible display screen 300.
Wherein, the flexible display screen 300 is installed on the folding mechanism 200. The flexible display screen 300 includes: two non-bending zones 301 and a bending zone 302 connected between the two non-bending zones 301. The two non-bending areas 301 are respectively fixed on the two support plates 4 of the folding mechanism 200, and the bending area 302 is not fixed with the support plate 4. In this embodiment, the two non-bending areas 301 are respectively fixed on the two support plates 4 of the folding mechanism 200 by gluing.
As shown in fig. 11 and 12, when the foldable display device 1000 is in a folded state, the flexible display screens 300 of the two non-bending areas 301 are flat, and the flexible display screens 300 of the bending areas 302 are curved; when the foldable display device 1000 is in the unfolded state, the flexible display screen 300 is unfolded to be a plane.
Example 2
FIG. 13 is a top view of the folding mechanism base of embodiment 2; FIG. 14 is a sectional view taken along line B-B in FIG. 4 in accordance with example 2. As shown in fig. 13 and 14, the present embodiment includes most of the technical features of embodiment 1, and the present embodiment is different from embodiment 1 in that: in this embodiment, in a cross section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of one of the arc-shaped fixing rails 2 are not parallel, and an included angle between the second surface 21 and the first sidewall 121 of the arc-shaped fixing rail 2 is not equal to an included angle between the third surface 22 and the first sidewall 121 of the arc-shaped fixing rail 2. In other words, the second surface 21 and the third surface 22 of one of the arc-shaped fixing rails 2 are not parallel and symmetrical. Specifically, in a cross section parallel to a plane formed by the first axis Z and the third axis Y, an included angle between the second surface 21 and the first sidewall 121 is α, an included angle between the third surface 22 and the first sidewall 121 is β, and α is not equal to β.
When the folding mechanism 200 is impacted, the pressure F applied to the arc-shaped fixed rail 2 by the arc-shaped sliding rail 3 is decomposed into a force F1 parallel to the second surface 21 and the third surface 22 and a force F2 perpendicular to the second surface 21 and the third surface 22, so that the influence of the pressure F on the arc-shaped fixed rail 2 is reduced, the risk of undesirable phenomena such as deformation or fracture of the arc-shaped fixed rail 2 is reduced, and the service life of the folding mechanism 200 is prolonged.
Example 3
FIG. 15 is a top view of the folding mechanism base of embodiment 3; FIG. 16 is a sectional view taken along line B-B in FIG. 4 in accordance with example 3. As shown in fig. 15 and 16, the present embodiment includes most of the technical features of embodiment 1, and the present embodiment is different from embodiment 1 in that: in this embodiment, on a cross section parallel to a plane formed by the first axis Z and the third axis Y, the two arc-shaped fixing rails 2 located in the same accommodating cavity 12 are symmetrical to each other.
In this embodiment, the arc-shaped fixing rails 2 in the two accommodating cavities 12 are designed in the same way. In other embodiments, the arc-shaped fixing rail 2 in different receiving cavities 12 can also be designed differently.
In this embodiment, in a cross section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of each of the arc-shaped fixing rails 2 are parallel to each other.
In other embodiments, the second surface 21 and the third surface 22 of each of the arc-shaped fixing rails 2 may be symmetrical to each other in a section parallel to a plane formed by the first axis Z and the third axis Y.
In other embodiments, in a cross section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of each of the arc-shaped fixing rails 2 are not parallel, and an included angle between the second surface 21 and the first sidewall 121 of at least one of the arc-shaped fixing rails 2 is not equal to an included angle between the third surface 22 and the first sidewall 121 of the arc-shaped fixing rail 2.
In other embodiments, in a section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of the arc-shaped fixing rail 2 in one receiving cavity are symmetrical to each other, and the second surface 21 and the third surface 22 of the arc-shaped fixing rail 2 in the other receiving cavity are parallel to each other.
In other embodiments, in a cross section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of the arc-shaped fixing rail 2 in one receiving cavity are symmetrical to each other, the second surface 21 and the third surface 22 of the arc-shaped fixing rail 2 in the other receiving cavity are not parallel, and an included angle between the second surface 21 of at least one of the arc-shaped fixing rails 2 and the first sidewall 121 is not equal to an included angle between the third surface 22 of the arc-shaped fixing rail 2 and the first sidewall 121.
In other embodiments, in a cross section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 and the third surface 22 of the arc-shaped fixing rail 2 in one receiving cavity are parallel to each other, the second surface 21 and the third surface 22 of the arc-shaped fixing rail 2 in the other receiving cavity are not parallel to each other, and an included angle between the second surface 21 of at least one of the arc-shaped fixing rails 2 and the first sidewall 121 is not equal to an included angle between the third surface 22 of the arc-shaped fixing rail 2 and the first sidewall 121.
When the folding mechanism 200 is impacted, the pressure F applied to the arc-shaped fixed rail 2 by the arc-shaped sliding rail 3 is decomposed into a force F1 parallel to the second surface 21 and the third surface 22 and a force F2 perpendicular to the second surface 21 and the third surface 22, so as to reduce the influence of the pressure F on the arc-shaped fixed rail 2, reduce the risk of undesirable phenomena such as deformation or fracture of the arc-shaped fixed rail 2, and prolong the service life of the folding mechanism 200.
Further, the above detailed description is provided for a folding mechanism and a folding display device provided in the present application, and specific examples are applied herein to explain the principles and embodiments of the present application, and the descriptions of the above embodiments are only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A folding mechanism, comprising:
a base having a first surface; the first surface of the base is recessed along a first axis to form two containing cavities;
each accommodating cavity is provided with two first side walls which are parallel to a plane formed by the first shaft and a second shaft perpendicular to the first shaft, and each first side wall is provided with an arc-shaped fixing track;
the two arc-shaped sliding rails are respectively connected with the arc-shaped fixed rails in the containing cavities in a sliding manner;
each arc-shaped fixed track is provided with a second surface and a third surface, and the second surface and the third surface are arc surfaces;
the second surface and/or the third surface of at least one of the arcuate fixing rails is non-perpendicular to the first side wall in a cross-section taken in a plane parallel to the first axis and perpendicular to a third axis of the first side wall.
2. The folding mechanism of claim 1 wherein said second surface of at least one of said arcuate stationary rails includes an angle in the range of 30 ° -80 ° and 100 ° -150 ° with said first side wall in a cross section parallel to a plane defined by said first axis and said third axis; and/or
The included angle between the third surface of at least one of the arc-shaped fixing rails and the first side wall ranges from 30 degrees to 80 degrees and from 100 degrees to 150 degrees.
3. The folding mechanism of claim 1 wherein said second surface and said third surface of at least one of said arcuate fixed tracks are symmetrical to each other in a cross-section parallel to a plane defined by said first axis and said third axis.
4. The folding mechanism of claim 1 wherein said second surface and said third surface of at least one of said arcuate fixed tracks are parallel to each other in a cross-section parallel to a plane defined by said first axis and said third axis.
5. The folding mechanism of claim 1 wherein, in a cross-section parallel to a plane defined by said first axis and said third axis, said second surface and said third surface of at least one of said arcuate fixing rails are non-parallel and the angle between said second surface and said first side wall of at least one of said arcuate fixing rails is not equal to the angle between said third surface and said first side wall of said arcuate fixing rail.
6. The folding mechanism of claim 1, wherein said two arcuate fixing tracks located in the same housing chamber are symmetrical to each other in a cross-section parallel to a plane defined by said first axis and said third axis.
7. The folding mechanism of claim 1, wherein, in a cross section parallel to a plane formed by the first axis and the third axis, the included angles between the second surfaces of the two arc-shaped fixing rails in the same receiving cavity and the first side wall are not equal; and/or
On a section parallel to a plane formed by the first shaft and the third shaft, included angles between the third surfaces of the two arc-shaped fixed rails in the same containing cavity and the first side wall are not equal.
8. The folding mechanism of claim 1, further comprising:
the two supporting plates are respectively and fixedly connected to the two arc-shaped sliding rails; both support plates have support surfaces;
when the folding mechanism is in a folded state, the supporting surfaces of the two supporting plates are arranged oppositely, and the arc-shaped sliding track part is positioned in the accommodating cavity;
when the folding mechanism is in an unfolding state, the supporting surfaces of the two supporting plates are parallel and level with each other, and the arc-shaped sliding rails are all located in the accommodating cavity.
9. A foldable display device, comprising: the folding mechanism of any one of claims 1-8, further comprising a flexible display screen mounted on the folding mechanism.
10. The foldable display device of claim 9, wherein the flexible display screen comprises: the bending device comprises two non-bending areas and a bending area connected between the two non-bending areas;
the two non-bending areas are respectively fixed on the two supporting plates of the folding mechanism;
when the folding display device is in a folding state, the flexible display screens of the two non-bending areas are in a plane, and the flexible display screens of the bending areas are in a curved surface;
when the folding display device is in an unfolding state, the flexible display screen is unfolded to be in a plane.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210805657.XA CN114999330B (en) | 2022-07-08 | 2022-07-08 | Folding mechanism and folding display device |
| PCT/CN2023/075393 WO2024007585A1 (en) | 2022-07-08 | 2023-02-10 | Folding mechanism and folding display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210805657.XA CN114999330B (en) | 2022-07-08 | 2022-07-08 | Folding mechanism and folding display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114999330A true CN114999330A (en) | 2022-09-02 |
| CN114999330B CN114999330B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210805657.XA Active CN114999330B (en) | 2022-07-08 | 2022-07-08 | Folding mechanism and folding display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114999330B (en) |
| WO (1) | WO2024007585A1 (en) |
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| WO2024007585A1 (en) * | 2022-07-08 | 2024-01-11 | 武汉华星光电半导体显示技术有限公司 | Folding mechanism and folding display apparatus |
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Also Published As
| Publication number | Publication date |
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| CN114999330B (en) | 2023-11-28 |
| WO2024007585A1 (en) | 2024-01-11 |
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