CN114999330B - Folding mechanism and folding display device - Google Patents
Folding mechanism and folding display device Download PDFInfo
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- CN114999330B CN114999330B CN202210805657.XA CN202210805657A CN114999330B CN 114999330 B CN114999330 B CN 114999330B CN 202210805657 A CN202210805657 A CN 202210805657A CN 114999330 B CN114999330 B CN 114999330B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 78
- 238000005452 bending Methods 0.000 claims description 12
- 230000002411 adverse Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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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- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
The application relates to a folding mechanism and a folding display device. According to the application, on the section parallel to the plane formed by the first shaft and the third shaft, the second surface and/or the third surface of at least one arc-shaped fixed rail are/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 the force parallel to the second surface and/or the third surface and the force perpendicular to the second surface and/or the third surface, thereby reducing the influence of the pressure F on the arc-shaped fixed rail, reducing the risk of deformation or fracture and other adverse phenomena of the arc-shaped fixed rail, and prolonging the service life of the folding display device.
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 (Organic Light Emitting Diode, abbreviated as OLED) is a photoelectric technology for realizing multicolor display by utilizing an organic semiconductor material to generate reversible color change under current drive. The OLED has advantages of light weight, high brightness, active light emission, low energy consumption, large viewing angle, rapid response, flexibility, wide operating temperature range, low voltage requirement, high power saving efficiency, fast response, simple structure, low cost, almost infinitely high contrast, etc., and is considered to be the most promising new generation of display technology.
Nowadays portable electronic devices, such as mobile phones, media players, smart watches, in-car displays and tablet computers are becoming more and more popular. Users often desire devices that can be conveniently placed in a pocket or purse or worn on their hand, or that can have a larger display surface for viewing. Therefore, the foldable display device is favored by the majority of users because of the advantages of being foldable, convenient to carry, and the like.
As shown in fig. 1 and 2, in most conventional folding display devices, a folding mechanism 100 is used to connect two middle frames, and in order to implement a specific bending track, the folding mechanism 100 needs to set a track 101 matching with the folding mechanism, where the track 101 includes a fixed track 1011 and a sliding track 1012. When the folding display device is in a folded state, when the folding display device is impacted, the fixed rail 1011 receives pressure F from the sliding rail 1012, and because the fixed rail 1011 is perpendicular to the base 102, the overlapping part of the fixed rail 1011 and the sliding rail 1012 is less, and under the action of the pressure F, the fixed rail 1011 is easy to deform or break and other adverse phenomena, and finally the use of the folding display device is affected.
Disclosure of Invention
The application aims to provide a folding mechanism and a folding display device, which can solve the problems that a fixing rail in the existing folding structure is easy to deform or break and the like, and finally the use of the folding display device is influenced.
In order to solve the above-described problems, the present application 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 accommodating cavities; each accommodating cavity is provided with two first side walls 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 fixed track; the two arc-shaped sliding rails are respectively connected with the arc-shaped fixed rails in the two accommodating cavities in a sliding manner; each arc-shaped fixed rail is provided with a second surface and a third surface, and the second surface and the third surface are cambered surfaces; in a section parallel to a plane formed by the first axis and a third axis perpendicular to the first side wall, the second surface and/or the third surface of at least one of the arcuate fixing tracks is non-perpendicular to the first side wall.
Further, in a cross-section parallel to a plane formed by the first axis and the third axis, an included angle between the second surface of at least one of the arcuate fixing rails and the first side wall ranges from 30 ° to 80 ° and from 100 ° to 150 °; and/or the angle of the third surface of at least one of the arcuate fixation tracks to the first sidewall ranges from 30 ° to 80 ° and from 100 ° to 150 °.
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 arcuate fixing rails are symmetrical to each other.
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 arcuate fixing rails are parallel to each other.
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 arc-shaped fixing rails is not parallel to the third surface, and an included angle between the second surface of at least one of the arc-shaped fixing rails and the first side wall is not equal to an included angle between the third surface of the arc-shaped fixing rail and the first side wall.
Further, on a section parallel to a plane formed by the first shaft and the third shaft, two arc-shaped fixing rails positioned in the same accommodating cavity are mutually symmetrical.
Further, on a section parallel to a plane formed by the first shaft and the third shaft, the included angles between the second surfaces of the two arc-shaped fixing rails and the first side wall in the same accommodating cavity are unequal; and/or on a section parallel to a plane formed by the first shaft and the third shaft, the included angles between the third surfaces of the two arc-shaped fixing rails positioned in the same accommodating cavity and the first side wall are unequal.
Further, the folding mechanism further includes: the two support plates are respectively and fixedly connected to the two arc-shaped sliding rails; both the supporting plates are provided with supporting surfaces; when the folding mechanism is in a folding state, the supporting surfaces of the two supporting plates are oppositely arranged, 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 mutually flush, and the arc-shaped sliding rails are all positioned in the accommodating cavity.
In order to solve the above-described problems, the present application provides a folding display device including: the folding mechanism of the application further comprises a flexible display screen arranged on the folding mechanism.
Further, the flexible display screen includes: two non-inflection regions and an inflection region connected between the two non-inflection regions; the two non-bending parts 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 a plane.
The application has the advantages that: according to the application, on the section parallel to the plane formed by the first shaft and the third shaft, the second surface and/or the third surface of at least one arc-shaped fixed rail are/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 the force parallel to the second surface and/or the third surface and the force perpendicular to the second surface and/or the third surface, thereby reducing the influence of the pressure F on the arc-shaped fixed rail, reducing the risk of deformation or fracture and other adverse phenomena of the arc-shaped fixed rail, and prolonging the service life of the folding display device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
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 B-B sectional view of FIG. 4 of example 1;
FIG. 8 is a C-C cross-sectional view of FIG. 4 of example 1;
fig. 9 is a 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 B-B sectional view of FIG. 4 of example 2;
FIG. 15 is a top view of the folding mechanism base of embodiment 3;
FIG. 16 is a B-B sectional view of FIG. 4 of example 3.
Reference numerals illustrate:
1000. folding the display device; 200. a folding mechanism;
300. a flexible display screen;
1. a base; 2. An arc-shaped fixed rail;
3. an arc-shaped sliding rail; 4. A support plate;
5. a hinge assembly;
11. a first surface; 12. A housing chamber;
121. a first sidewall; 122. A second sidewall;
21. a second surface; 22. A third surface;
31. an arc chute; 51. A bracket;
52. a connecting shaft; 53. A rotating plate;
54. a first gear; 55. A second gear;
56. a friction plate; 57. Hovering a male end;
58. hovering a parent end; 59. An elastic member.
Detailed Description
The following detailed description of the preferred embodiments of the application, taken in conjunction with the accompanying drawings, is provided to fully convey the substance of the application to those skilled in the art, and to illustrate the application to practice it, so that the technical disclosure of the application will be made more clear to those skilled in the art to understand how to practice the application more easily. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as limited to the set forth herein.
The directional terms used herein, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are used for explaining and describing the present application only in terms of the directions of the drawings and are not intended to limit the scope of the present application.
In the drawings, like structural elements are referred to by like reference numerals and components having similar structure or function are referred to by like reference numerals. In addition, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of understanding and description, and the present application 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 rail 2, two arc slip rail 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 receiving cavity 12 is a through hole penetrating the base 1, and in other embodiments, the receiving cavity 12 may be a groove not penetrating 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 accommodating chambers 12 has two first sidewalls 121 and two second sidewalls 122. The two first side walls 121 are parallel to a plane formed by the first axis Z and a second axis X perpendicular to the first axis Z, and the two second side walls 122 are parallel to a plane formed by the first axis Z and a third axis Y perpendicular to the 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 side walls 121 has an arc-shaped fixing rail 2 thereon. In this embodiment, the arc-shaped fixing rail 2 is integrally formed with the base 1, and in other embodiments, the arc-shaped fixing rail 2 may be fixed on the first side wall 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 arcuate fixing rails 2 has a second surface 21 and a third surface 22. The second surface 21 and the third surface 22 are both cambered surfaces.
Wherein in a section parallel to a 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 arcuate 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 tracks 2 and the first side wall 121 ranges from 30 ° to 80 ° and from 100 ° to 150 °; and/or the angle of the third surface 22 of at least one of the arcuate fixation tracks 2 to the first side wall 121 ranges from 30 deg. -80 deg. and from 100 deg. -150 deg..
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 B-B sectional view of FIG. 4 of example 1. As shown in fig. 4, 5, 6 and 7, in this 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 side wall 121.
Wherein, 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 at least one of the arcuate fixing rails 2 are symmetrical to each other; and/or 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 at least one of the curved fixing tracks 2 are parallel to each other; and/or 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 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 side wall 121 of at least one of the arc-shaped fixing rails 2 and an included angle between the third surface 22 and the first side wall 121 of the arc-shaped fixing rail 2 are not equal.
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 arcuate fixing rails 2 are parallel to each other; the second surface 21 and the third surface 22 of one of the arcuate fixation rails 2 are symmetrical to each other.
In other embodiments, 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 curved fixing tracks 2 are symmetrical to each other; or 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 each of the arcuate fixing rails 2 are parallel to each other; or in a section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 of each arc-shaped fixing rail 2 is not parallel to the third surface 22, and an included angle between the second surface 21 of at least one arc-shaped fixing rail 2 and the first side wall 121 and an included angle between the third surface 22 of the arc-shaped fixing rail 2 and the first side wall 121 are not equal.
In this embodiment, on a 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 located 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, the included angles between the third surfaces 22 of the two arc-shaped fixing rails 2 located in the same accommodating cavity 12 and the first side wall 121 are not equal.
As shown in fig. 7, in this embodiment, in a cross section parallel to a plane formed by the first axis Z and the third axis Y, the second surfaces 21 of the two arc-shaped fixing rails 2 located in the same housing cavity 12 have equal angles with the first side wall 121. On a section parallel to a plane formed by the first axis Z and the third axis Y, the third surfaces 22 of the two arc-shaped fixing rails 2 located in the same housing cavity 12 are not equal to each other in angle with the first side wall 121. To sum up, 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 deformation or fracture and other adverse phenomena of the arc-shaped fixed rail 2 is reduced, and the service life of the folding mechanism 200 is prolonged.
As shown in fig. 4, the two arc-shaped sliding rails 3 are slidably connected to the arc-shaped fixed rails 2 in the two accommodating cavities 12 respectively.
As shown in fig. 4, each arc-shaped sliding rail 3 is provided with two arc-shaped sliding grooves 31 which are matched with the corresponding arc-shaped fixed rails 2 in the accommodating cavity 12.
Fig. 4 is a perspective view of the folding mechanism of embodiment 1 in a folded state; FIG. 8 is a C-C cross-sectional view of FIG. 4 of 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 fixedly connected to two arc-shaped sliding rails 3, respectively. Both support plates 4 have a support surface 41. The arc-shaped sliding rail 3 slides relative to the arc-shaped fixed rail 2, and the arc-shaped sliding rail 3 drives the support plate 4 to be unfolded and folded. When the folding mechanism 200 is in a folded state, the supporting surfaces 41 of the two supporting plates 4 are opposite to each other, and the arc-shaped sliding rail 3 is partially positioned 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 positioned in the accommodating cavity 12.
As shown in fig. 10, the folding mechanism 200 further includes a hinge assembly 5. Wherein the hinge assembly 5 comprises: the 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.
Wherein, the bracket 51 has two through holes 511 and two receiving grooves 512 at both ends.
Wherein, the two connecting shafts 52 are respectively connected to the base 1 through the two through holes 511 of the bracket 51, so as to fix the bracket 51 and the base 1.
Wherein, two rotating plates 53 are respectively rotatably sleeved on the two connecting shafts 52. The two rotating plates 53 are respectively provided with a sliding shaft 531. When the support plate 4 of the folding mechanism 200 rotates, the support plate 4 drives the rotating plate 53 to rotate relative to the connecting shaft 52, and meanwhile, the sliding shaft 531 on the rotating 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 rotation directions of the two first gears 54 are opposite.
Wherein the base 1 is further provided with two protrusions (not shown) on the side close to the hinge assembly 5. The two protrusions on the base 1 are respectively inserted into the two receiving grooves 512 of the bracket 51.
The two second gears 55 are respectively sleeved on two protrusions (not shown), and are located between the accommodating groove 512 and the base 1. The rotation directions of the two second gears 55 are opposite. The first gear 54 and the second gear 55, which are adjacent to each other, are rotated in opposite directions.
The friction plate 56 is sleeved on the outer sidewalls of the two connecting shafts 52 and is located between the rotating plate 53 and the first gear 54, so as to increase friction between the rotating plate 53 and the first gear 54, which is beneficial to maintaining 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 male hovering ends 57 are respectively arranged at one side of the two rotating plates 53 away from the base 1.
Wherein, two female ends 58 that hover overlap respectively on two connecting shafts 52, and match with two male ends 57 that hover respectively.
Wherein, two elastic members 59 are respectively sleeved on the two connecting shafts 52 and connected between the bracket 51 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 are rotated to a certain angle, the hovering female end 58 is pressed by the elastic member 59, and the hovering female end 58 is pressed by the hovering male end 57, so that the two rotating plates 53 are kept stationary. 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 further provides a folding display device 1000. The folding display device 1000 includes: folding mechanism 200 and flexible display 300.
Wherein a flexible display 300 is mounted on the folding mechanism 200. The flexible display 300 includes: two non-inflection regions 301 and an inflection region 302 connected between the two non-inflection regions 301. The two non-bending areas 301 are respectively fixed on the two support plates 4 of the folding mechanism 200, and the bending areas 302 are not fixed with the support plates 4. In this embodiment, the two non-bending regions 301 are respectively fixed to 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 regions 301 are planar, and the flexible display screens 300 of the bending regions 302 are curved; when the foldable display device 1000 is in the unfolded state, the flexible display 300 is unfolded to be flat.
Example 2
FIG. 13 is a top view of the folding mechanism base of embodiment 2; FIG. 14 is a B-B sectional view of FIG. 4 of example 2. As shown in fig. 13 and 14, this embodiment includes most of the technical features of embodiment 1, and the difference between this embodiment and embodiment 1 is 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 arc-shaped fixing rail 2 are not parallel, and an included angle between the second surface 21 and the first side wall 121 of the arc-shaped fixing rail 2 and an included angle between the third surface 22 and the first side wall 121 of the arc-shaped fixing rail 2 are not equal. In other words, the second surface 21 of one of the arcuate fixation rails 2 is not parallel and asymmetric to the third surface 22. Specifically, in a cross section parallel to a plane formed by the first axis Z and the third axis Y, the second surface 21 forms an angle α with the first sidewall 121, and the third surface 22 forms an angle β with the first sidewall 121, where 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 deformation or fracture and other adverse phenomena 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 B-B sectional view of FIG. 4 of example 3. As shown in fig. 15 and 16, this embodiment includes most of the technical features of embodiment 1, and the difference between this embodiment and embodiment 1 is that: in this embodiment, on a 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 housing cavity 12 are symmetrical to each other.
In this embodiment, the same design is adopted for the arc-shaped fixing rails 2 in the two accommodating chambers 12. In other embodiments, the arcuate mounting rail 2 in the different receiving cavities 12 may be of different designs.
In this 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 each of the arcuate fixing rails 2 are parallel to each other.
In other embodiments, the second surface 21 and the third surface 22 of each arcuate fixation rail 2 may be symmetrical to each other in a cross 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 of each arc-shaped fixing rail 2 is not parallel to the third surface 22, and an included angle between the second surface 21 of at least one arc-shaped fixing rail 2 and the first side wall 121 and an included angle between the third surface 22 of the arc-shaped fixing rail 2 and the first side wall 121 are not equal.
In other embodiments, 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 the arc-shaped fixing rail 2 in one housing 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 housing cavity are parallel to each other.
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, 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 and the first side wall 121 of at least one arc-shaped fixing rail 2 and an included angle between the third surface 22 and the first side wall 121 of the arc-shaped fixing rail 2 are not equal.
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 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, and an angle between the second surface 21 and the first side wall 121 of at least one arc-shaped fixing rail 2 and an angle between the third surface 22 and the first side wall 121 of the arc-shaped fixing rail 2 are not equal.
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 deformation or fracture and other adverse phenomena of the arc-shaped fixed rail 2 is reduced, and the service life of the folding mechanism 200 is prolonged.
Further, the folding mechanism and the folding display device provided by the application are described in detail, and specific examples are applied to illustrate the principles and the embodiments of the application, and the description of the above examples is only used to help understand the method and the core idea of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.
Claims (9)
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 accommodating cavities;
each accommodating cavity is provided with two first side walls 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 fixed track;
the two arc-shaped sliding rails are respectively connected with the arc-shaped fixed rails in the two accommodating cavities in a sliding manner;
each arc-shaped fixed rail is provided with a second surface and a third surface, and the second surface and the third surface are cambered surfaces;
in a section parallel to a plane formed by the first axis and a third axis perpendicular to the first side wall, the second surface and/or the third surface of at least one of the arcuate fixation tracks is non-perpendicular to the first side wall;
in a cross-section parallel to a plane formed by the first axis and the third axis, an included angle between the second surface of at least one of the arcuate fixing rails and the first side wall ranges from 30 ° to 80 ° and from 100 ° to 150 °; and/or
The angle between the third surface of at least one of the arcuate mounting rails and the first side wall ranges from 30 ° to 80 ° and from 100 ° to 150 °.
2. The folding mechanism of claim 1, wherein said second surface and said third surface of at least one of said arcuate mounting rails are symmetrical to each other in a cross-section parallel to a plane defined by said first axis and said third axis.
3. The folding mechanism of claim 1, wherein said second surface and said third surface of at least one of said arcuate mounting rails are parallel 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 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 tracks is non-parallel to the third surface, and an angle between the second surface of at least one of the arcuate fixation tracks and the first sidewall and an angle between the third surface of the arcuate fixation track and the first sidewall are non-equal.
5. The folding mechanism of claim 1, wherein, in a cross section parallel to a plane formed by the first axis and the third axis, two of the arcuate fixation tracks in the same housing are symmetrical to each other.
6. The folding mechanism of claim 1, wherein the second surfaces of the two arcuate securing rails located in the same receiving cavity are not at equal angles to the first side wall in a cross section parallel to a plane formed by the first axis and the third axis; and/or
And on a section parallel to a plane formed by the first shaft and the third shaft, the included angles between the third surfaces of the two arc-shaped fixing rails positioned in the same accommodating cavity and the first side wall are unequal.
7. The folding mechanism of claim 1, further comprising:
the two support plates are respectively and fixedly connected to the two arc-shaped sliding rails; both the supporting plates are provided with supporting surfaces;
when the folding mechanism is in a folding state, the supporting surfaces of the two supporting plates are oppositely arranged, 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 mutually flush, and the arc-shaped sliding rails are all positioned in the accommodating cavity.
8. A folding display device, comprising: the folding mechanism of any of claims 1-7, further comprising a flexible display screen mounted on the folding mechanism.
9. The folding display device of claim 8, wherein the flexible display screen comprises: two non-inflection regions and an inflection region connected between the two non-inflection regions;
the two non-bending parts 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 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 CN114999330A (en) | 2022-09-02 |
| CN114999330B true 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 |
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| CN (1) | CN114999330B (en) |
| WO (1) | WO2024007585A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114999330B (en) * | 2022-07-08 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Folding mechanism and folding display device |
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| CN114999330A (en) | 2022-09-02 |
| WO2024007585A1 (en) | 2024-01-11 |
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