CN113503312B - Flexible hinge, display device and electronic equipment - Google Patents
Flexible hinge, display device and electronic equipment Download PDFInfo
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- CN113503312B CN113503312B CN202110791229.1A CN202110791229A CN113503312B CN 113503312 B CN113503312 B CN 113503312B CN 202110791229 A CN202110791229 A CN 202110791229A CN 113503312 B CN113503312 B CN 113503312B
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- flexible display
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- flexible hinge
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- 238000005452 bending Methods 0.000 claims abstract description 128
- 230000000670 limiting effect Effects 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 21
- 238000003475 lamination Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Abstract
The invention discloses a flexible hinge, comprising: the connecting rod and elastic component, the connecting rod extends along the first direction of flexible display module, and the cross section of connecting rod forms the arc, and the elastic component includes: the supporting part is connected with the connecting rod, and the outer contour of the cross section of the supporting part is matched with the inner contour of the cross section of the connecting rod; the two first bending parts are respectively connected with two ends of the supporting part, and the protruding directions of the first bending parts are opposite to the protruding directions of the supporting part; the two second bending parts are respectively connected with one ends of the two first bending parts, which are away from the supporting parts, and the protruding directions of the second bending parts are the same as the protruding directions of the supporting parts. According to the flexible hinge disclosed by the embodiment of the invention, the number of parts of the flexible hinge can be reduced, and meanwhile, the complexity of the structure can be simplified. In addition, the complexity of the structure of the bending part can be simplified, and the thickness of the bending part can be reduced, so that the light and thin display device can be realized.
Description
Technical Field
The present invention relates to the field of electronic devices, and in particular, to a flexible hinge, a display device, and an electronic apparatus.
Background
The flexible characteristic of the flexible display screen enables the flexible display screen to be applied to manufacturing a curled and folded display device, and a hinge (the hinge is also called a rotating shaft and a hinge and is a mechanical device for connecting two solids and allowing the two solids to rotate relatively) is needed to be installed for driving the curled and folded flexible display screen. In the related art, the unfolding and folding of the flexible display screen are realized in the form of a multi-purpose rigid hinge (such as a gear), but such a hinge has a problem of complicated structure.
Disclosure of Invention
The invention provides a flexible hinge, which has the advantage of simple structure.
The invention also provides a display device which comprises the flexible hinge.
The invention further provides electronic equipment, which comprises the display device.
According to an embodiment of the present invention, a flexible hinge for a display device including a flexible display module, the flexible hinge being connected to the flexible display module to move the flexible display module between a folded position and an unfolded position, the flexible hinge including: a link extending in a first direction of the flexible display module, a cross-section of the link being formed in an arc shape, and an elastic member including: the supporting part is connected with the connecting rod, and the outer contour of the cross section of the supporting part is matched with the inner contour of the cross section of the connecting rod; the two first bending parts are respectively connected with two ends of the supporting part, and the protruding directions of the first bending parts are opposite to the protruding directions of the supporting part; the two second bending parts are respectively connected with one ends of the two first bending parts, which are away from the supporting parts, and the protruding directions of the second bending parts are the same as the protruding directions of the supporting parts; the connecting parts are two, one ends of the two connecting parts are respectively connected with one ends of the two second bending parts, which deviate from the first bending parts, and the other ends of the two connecting parts are respectively connected with two sides of the second direction of the flexible display module, wherein the second direction is perpendicular to the first direction.
According to the flexible hinge of the embodiment of the present invention, the flexible hinge includes: the connecting rod and the elastic piece are respectively connected with two opposite sides of the second direction of the flexible display module, when the flexible display module is folded or unfolded, the elastic piece can elastically deform by taking the connecting rod as a rotation center, so that the folding and unfolding of the flexible display module can be realized only by arranging the connecting rod and the elastic piece, the number of parts of the flexible hinge can be reduced, and meanwhile, the complexity of the structure can be simplified. In addition, the elastic piece comprises a supporting part, a first bending part, a second bending part and a connecting part, and compared with the gear arranged at the bending part in the related art, the bending part structure can be simplified in complexity, the thickness of the bending part can be reduced, and accordingly the display device can be thinned.
In some embodiments of the invention, the plurality of elastic members are provided in plural, the plurality of elastic members being disposed at intervals in the first direction.
In some embodiments of the present invention, the connecting rod is provided with a first connecting hole, the supporting part is provided with a second connecting hole, and the connecting rod and the supporting part are connected through riveting of the first connecting hole and the second connecting hole.
In some embodiments of the present invention, the cross section of the connecting rod is in a circular arc shape, the central angle of the cross section of the connecting rod is alpha, and the following conditions are satisfied: alpha is more than or equal to 90 degrees and less than or equal to 120 degrees.
In some embodiments of the present invention, the concave side of the first bending portion is thinned to form a first thinned region.
In some embodiments of the present invention, the convex side of the first bending portion is thinned to form a second thinned region.
In some embodiments of the present invention, the concave side of the second bending portion is thinned to form a third thinned region.
In some embodiments of the present invention, the convex side of the second bending portion is thinned to form a fourth thinned region.
In some embodiments of the present invention, the first bending portion is provided with a plurality of first through holes, and the plurality of first through holes are spaced apart in the first direction.
In some embodiments of the present invention, the second bending portion is provided with a plurality of second through holes, and the plurality of second through holes are spaced apart in the first direction.
In some embodiments of the invention, the connection portion is formed in a flat plate shape.
In some embodiments of the present invention, in the second direction, two opposite sides of the flexible display module are respectively provided with a first limiting member and a second limiting member, and the two connecting portions include: the first connecting part is provided with a mounting hole, and the first limiting piece is inserted into the mounting hole; the second connecting portion is provided with a waist-shaped hole extending along the second direction, the second limiting piece is movably arranged in the waist-shaped hole, and when the flexible display module moves between the folding position and the unfolding position, the second limiting piece is suitable for moving from one end of the waist-shaped hole to the other end of the waist-shaped hole.
The display device according to an embodiment of the present invention includes: a flexible display module; the flexible hinge is connected with the flexible display module to enable the flexible display module to move between a folded position and an unfolded position.
According to the display device of the embodiment of the invention, the flexible hinge includes: the connecting rod and the elastic piece are respectively connected with two opposite sides of the second direction of the flexible display module, when the flexible display module is folded or unfolded, the elastic piece can elastically deform by taking the connecting rod as a rotation center, so that the folding and unfolding of the flexible display module can be realized only by arranging the connecting rod and the elastic piece, the number of parts of the flexible hinge can be reduced, and meanwhile, the complexity of the structure can be simplified. In addition, the elastic piece comprises a supporting part, a first bending part, a second bending part and a connecting part, and compared with the gear arranged at the bending part in the related art, the bending part structure can be simplified in complexity, the thickness of the bending part can be reduced, and accordingly the display device can be thinned.
In some embodiments of the invention, the flexible display module includes: a buffer bracket; the first middle shell is connected with one end of the buffer bracket in the second direction; the second middle shell is connected with the other end of the buffer bracket in the second direction; the flexible display screen is connected with the buffer bracket, the first middle shell and the second middle shell, and is arranged in a lamination manner with the buffer bracket; the flexible hinges and the flexible display screen are distributed on two sides of the thickness direction of the buffer support, the two connecting parts are respectively connected with the first middle shell and the second middle shell, and the connecting rods protrude towards the direction close to the buffer support.
In some embodiments of the invention, a side of the buffer support facing the link is provided with a buffer member, the buffer member being spaced between the buffer support and the link.
In some embodiments of the invention, the buffer support has a modulus of elasticity that is greater than a modulus of elasticity of the flexible display screen.
In some embodiments of the invention, in the folded position, a side of the link adjacent the cushioning support is in engagement with a side of the cushioning support facing the link.
An electronic device according to an embodiment of the present invention includes: the display device.
According to an embodiment of the present invention, a flexible hinge includes: the connecting rod and the elastic piece are respectively connected with two opposite sides of the second direction of the flexible display module, when the flexible display module is folded or unfolded, the elastic piece can elastically deform by taking the connecting rod as a rotation center, so that the folding and unfolding of the flexible display module can be realized only by arranging the connecting rod and the elastic piece, the number of parts of the flexible hinge can be reduced, and meanwhile, the complexity of the structure can be simplified. In addition, the elastic piece comprises a supporting part, a first bending part, a second bending part and a connecting part, and compared with the gear arranged at the bending part in the related art, the bending part structure can be simplified in complexity, the thickness of the bending part can be reduced, and accordingly the display device can be thinned.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a flexible hinge according to an embodiment of the present invention;
FIG. 2 is a side view of a flexible hinge according to an embodiment of the present invention;
FIG. 3 is a partial schematic structural view of a flexible hinge according to an embodiment of the present invention, wherein the flexible hinge is in an unfolded state;
FIG. 4 is a partial schematic structural view of a flexible hinge according to an embodiment of the present invention, wherein the flexible hinge is in a folded state;
FIG. 5 is a schematic view of the structure of an elastic member according to an embodiment of the present invention;
FIG. 6 is a schematic view of the structure of an elastic member according to another embodiment of the present invention;
Fig. 7 is a schematic structural view of a display device according to an embodiment of the present invention;
FIG. 8 is a partial cross-sectional view of a display device according to an embodiment of the invention, with a flexible display screen in an expanded state;
Fig. 9 is a partial cross-sectional view of a display device according to an embodiment of the present invention, in which a flexible display screen is in a folded state.
Reference numerals:
the display device 100, the flexible hinge 1,
The connecting rod 11, the first connecting hole 111,
The elastic member 12, the supporting portion 121, the second connecting hole 1211,
The first bent portion 122, the first thinned region 1221, the second thinned region 1222, the first through hole 1223,
The second bent portion 123, the third thinned region 1231, the fourth thinned region 1232, the second through-hole 1233,
The connection 124, mounting hole 1241, waist-shaped hole 1242,
The first stop 1243, the second stop 1244,
The flexible display module 2 is provided with a display screen,
The display device comprises a buffer bracket 21, a first middle shell 22, a second middle shell 23, a flexible display screen 24 and a buffer piece 25.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.
The flexible hinge 1 according to the embodiment of the present invention is described below with reference to the accompanying drawings. The flexible hinge 1 may be used in a display device 100, the display device 100 comprising a flexible display module 2, the flexible hinge 1 being connected to the flexible display module 2 to enable movement of the flexible display module 2 between a folded position and an unfolded position. For example, in one specific example of the present invention, the flexible display module 2 is an OLED display screen, where chinese names of the OLED are organic light emitting diodes, and english is all called: organic Light-emission Diode.
As shown in fig. 1, a flexible hinge 1 according to an embodiment of the present invention includes: a link 11 and an elastic member 12. It will be appreciated that the connecting rod 11 serves as a fixed shaft, the elastic member 12 serves as a rotating portion, the elastic member 12 can rotate relative to the connecting rod 11, and the elastic member 12 can move and deform relative to the fixed portion during rotation. The elastic pieces 12 are respectively connected with two opposite sides of the flexible display module 2 in the second direction, when the flexible display module 2 is folded or unfolded, the elastic pieces 12 can elastically deform by taking the connecting rod 11 as a rotation center, so that the flexible display module 2 can be folded and unfolded only by arranging the connecting rod 11 and the elastic pieces 12, the number of parts of the flexible hinge 1 can be reduced, and meanwhile, the complexity of the structure can be simplified.
As shown in fig. 1 and 2, the link 11 extends in a first direction of the flexible display module 2, and a cross section of the link 11 is formed in an arc shape. It can be appreciated that, because the flexible display module 2 is a flexible member, the flexible display module 2 itself can be easily deformed, and the flexible display module 2 can be supported by the arc structure through setting the cross section of the connecting rod 11 to be arc-shaped, so that the display area of the flexible display module 2 is relatively flat when the flexible display module 2 is unfolded, and the use experience of a user is improved. Specifically, in one example of the present invention, the link 11 protrudes toward a side close to the flexible display module 2.
As shown in fig. 2 to 4, the elastic member 12 includes: the support portion 121, the two first bending portions 122, the two second bending portions 123, and the two connecting portions 124, the support portion 121 being connected to the link 11. It will be appreciated that the support 121 is connected to the connecting rod 11, whereby the elastic member 12 can be fixed to the connecting rod 11, and that the outer contour of the cross section of the support 121 matches the inner contour of the cross section of the connecting rod 11. That is, the outer contour of the cross section of the supporting portion 121 is also arc-shaped, and the flexible display module 2 can be supported by the arc-shaped structure by setting the outer contour of the cross section of the supporting portion 121 to be arc-shaped, so that the display area of the flexible display module 2 is flat when the flexible display module 2 is unfolded, and the use experience of a user is improved.
As shown in fig. 2 and 3, two first bending portions 122 are connected to both ends of the supporting portion 121, respectively, and the protruding direction of the first bending portions 122 is opposite to the protruding direction of the supporting portion 121. It can be understood that, by disposing the first bending portions 122 at two ends of the supporting portion 121, respectively, and the protruding direction of the first bending portions 122 is opposite to the protruding direction of the supporting portion 121, the elastic strength of the elastic member 12 can be improved, so that the first bending portions 122 can provide a good elastic force for the flexible display module 2 when the elastic member 12 follows the folding or compressing process of the flexible display module 2.
As shown in fig. 2 and 3, the two second bending portions 123 are respectively connected to one ends of the two first bending portions 122 facing away from the supporting portion 121, and the protruding direction of the second bending portions 123 is the same as the protruding direction of the supporting portion 121. It can be appreciated that, by arranging the second bending portions 123 at two ends of the first bending portion 122, which are away from the supporting portion 121, respectively, and the protruding direction of the second bending portion 123 is opposite to that of the first bending portion 122, the elastic strength of the elastic member 12 can be further improved, so that a good elastic force is better provided for the flexible display module 2, and meanwhile, the elastic force of the first bending portion 122 can be shared by the second bending portion 123 in the process of following the folding or compression of the flexible display module 2, so that the stress concentration of the first bending portion 122 is avoided.
As shown in fig. 2 and 3, one ends of the two connection portions 124 are respectively connected with one ends of the two second bending portions 123 facing away from the first bending portion 122, and the other ends of the two connection portions 124 are respectively connected with two sides of the flexible display module 2 in a second direction, wherein the second direction is perpendicular to the first direction. It can be understood that the connection portion 124 can realize connection between the elastic member 12 and the flexible display module 2, and in the process of folding or unfolding the flexible display module 2, the connection portion 124 can move along with the flexible display module 2, and simultaneously drives the second bending portion 123 and the first bending portion 122 to elastically deform relative to the supporting portion 121. The first direction may be a length direction of the flexible display module 2, and the second direction is a width direction of the flexible display module 2; or the second direction may be a length direction of the flexible display module 2, and the first direction is a width direction of the flexible display module 2.
It should be noted that, the protruding direction of the first bending portion 122 is opposite to the protruding direction of the supporting portion 121, and the protruding direction of the second bending portion 123 is the same as the protruding direction of the supporting portion 121, and the above-described structure of the flexible hinge 1 of the flexible display module 2 in the unfolded state is described.
Specifically, in one example of the present invention, the supporting portion 121, the two first bending portions 122, the two second bending portions 123, and the two connecting portions 124 are integrally formed. Therefore, the structure of the integrated forming structure not only can ensure the structure and performance stability of the supporting part 121, the two first bending parts 122, the two second bending parts 123 and the two connecting parts 124, but also is convenient to form and manufacture, saves redundant assembly parts and connecting procedures, greatly improves the assembly efficiency of the supporting part 121, the two first bending parts 122, the two second bending parts 123 and the two connecting parts 124, ensures the connection reliability of the supporting part 121, the two first bending parts 122, the two second bending parts 123 and the two connecting parts 124, and has higher integral strength and stability of the integrated forming structure, more convenient assembly and longer service life.
According to the flexible hinge 1 of the embodiment of the present invention, the flexible hinge 1 includes: the connecting rod 11 and the elastic piece 12 are respectively connected with two opposite sides of the flexible display module 2 in the second direction by using the elastic piece 12, when the flexible display module 2 is folded or unfolded, the elastic piece 12 can elastically deform by taking the connecting rod 11 as a rotation center, so that the folding and the unfolding of the flexible display module 2 can be realized by only arranging the connecting rod 11 and the elastic piece 12, the number of parts of the flexible hinge 1 can be reduced, and meanwhile, the complexity of the structure can be simplified. In addition, the elastic member 12 includes the supporting portion 121, the first bending portion 122, the second bending portion 123 and the connecting portion 124, and compared with the gear disposed at the bending portion in the related art, the complexity of the structure of the bending portion can be simplified, which is beneficial to reducing the thickness of the bending portion, so that the light and thin display device 100 can be realized.
In some embodiments of the present invention, as shown in fig. 1, the elastic members 12 are plural, and the plural elastic members 12 are disposed at intervals in the first direction. Thereby, the elastic member 12 can realize connection and limitation between the flexible display module 2 and the link 11, and by providing a plurality of spaced elastic members 12 in the first direction, connection and limitation between the flexible display module 2 and the link 11 can be realized at a plurality of positions in the first direction, thereby improving reliability and stability of relative rotation of the flexible display module 2 and the link 11.
In some embodiments of the present invention, as shown in fig. 1 and 5, a first connection hole 111 is provided on the link 11, a second connection hole 1211 is provided on the support 121, and the link 11 and the support 121 are riveted through the first connection hole 111 and the second connection hole 1211. It will be appreciated that the thickness of the connecting rod 11 and the supporting portion 121 is relatively thin, and the cross section is arc-shaped, so that the difficulty of connection can be reduced and the strength of connection can be ensured through riveting connection.
Specifically, in one example of the present invention, there are two first connection holes 111, two first connection holes 111 are spaced apart in the length direction of the link 11, two second connection holes 1211 are spaced apart in the length direction of the support portion 121, and two second connection holes 1211 are in one-to-one correspondence with the two first connection holes 111.
In some embodiments of the present invention, the cross section of the connecting rod 11 is formed in a circular arc shape, the central angle of the cross section of the connecting rod 11 is α, and the following is satisfied: alpha is more than or equal to 90 degrees and less than or equal to 120 degrees. It can be appreciated that by setting the central angle of the cross section of the connecting rod 11 at 90 ° -120 °, the supporting area of the connecting rod 11 on the flexible display module 2 can be increased while not interfering with the deformation of the first bending portion 122, thereby improving the reliability of the structure of the display device 100 during the bending process.
In some embodiments of the present invention, as shown in fig. 3 and 4, the concave side of the first bending portion 122 is thinned to form a first thinned region 1221. It can be appreciated that, during the folding process of the flexible display module 2, the concave side of the first bending portion 122 is a folding side, and by providing the first thinning area 1221 on the concave side of the first bending portion 122, the structural strength at the position of the first thinning area 1221 is weaker, that is, the first thinning area 1221 on the concave side of the first bending portion 122 is easier to fold, so that it can be ensured that bending can be performed at the position of the first thinning area 1221 during each folding process of the flexible display module 2, and thus, the specific folding position of the concave side of the first bending portion 122 can be limited.
In some embodiments of the present invention, as shown in fig. 3 and 4, the convex side of the first bending portion 122 is thinned to form a second thinned region 1222. It can be appreciated that, during the folding process of the flexible display module 2, the convex side of the first bending portion 122 is a stretching side, and by providing the second thinning area 1222 on the convex side of the first bending portion 122, the structural strength of the position of the second thinning area 1222 is weaker, that is, the second thinning area 1222 on the convex side of the first bending portion 122 is easier to stretch, so that it can be ensured that stretching can be performed at the position of the second thinning area 1222 during each folding process of the flexible display module 2, and thus, the specific stretching position of the convex side of the first bending portion 122 can be limited.
In some embodiments of the present invention, as shown in fig. 3 and 4, the concave side of the second bending portion 123 is thinned to form a third thinned region 1231. It can be appreciated that, during the stretching process of the flexible display module 2, the concave side of the second bending portion 123 is the stretching side, and by providing the third thinning region 1231 on the concave side of the second bending portion 123, the structural strength at the position of the third thinning region 1231 is weaker, that is, the third thinning region 1231 on the concave side of the second bending portion 123 is more easily stretched, so that it can be ensured that bending can be performed at the position of the third thinning region 1231 during each stretching process of the flexible display module 2, and thus, the specific stretching position of the concave side of the second bending portion 123 can be limited.
In some embodiments of the present invention, as shown in fig. 3 and 4, the convex side of the second bending portion 123 is thinned to form a fourth thinned region 1232. It can be appreciated that, during the folding process of the flexible display module 2, the convex side of the second bending portion 123 is a folding side, and by providing the fourth thinning region 1232 on the convex side of the second bending portion 123, the structural strength at the position of the fourth thinning region 1232 is weaker, that is, the fourth thinning region 1232 on the convex side of the second bending portion 123 is easier to fold, so that it can be ensured that bending can be performed at the position of the fourth thinning region 1232 during each folding process of the flexible display module 2, and thus, the specific folding position of the convex side of the second bending portion 123 can be limited.
In some embodiments of the present invention, as shown in fig. 6, the first bending portion 122 is provided with a plurality of first through holes 1223, where the plurality of first through holes 1223 are spaced apart in the first direction. It can be appreciated that, by providing the plurality of first through holes 1223 spaced apart in the first direction, the elastic strength of the first through holes 1223 is small, and bending at the first through holes 1223 of the first bending portion 122 can be ensured during the folding or unfolding of the flexible display module 2.
In some embodiments of the present invention, as shown in fig. 6, the second bending portion 123 is provided with a plurality of second through holes 1233, and the plurality of second through holes 1233 are spaced apart in the first direction. It can be appreciated that by providing the plurality of second through holes 1233 spaced apart in the first direction, the second through holes 1233 have a smaller elastic strength at the positions thereof, and thus, bending at the positions of the second through holes 1233 of the second bending part 123 can be ensured during folding or unfolding of the flexible display module 2.
In some embodiments of the present invention, as shown in fig. 5 and 6, the connection portion 124 is formed in a flat plate shape. It will be appreciated that the flexible display module 2 is relatively flat, and by arranging the connection portion 124 connected to the flexible display module 2 in a flat plate shape, the connection portion 124 is more easily connected to the flexible display module 2, and the connection portion 124 may also provide support for the flexible display module 2.
In some embodiments of the present invention, as shown in fig. 7 to 9, in the second direction, two opposite sides of the flexible display module 2 are respectively provided with a first limiting member 1243 and a second limiting member 1244, and the two connection parts 124 include: the first connecting portion 124 and the second connecting portion 124, the first connecting portion 124 is provided with a mounting hole 1241, and the first limiting member 1243 is inserted into the mounting hole 1241. It can be appreciated that the mounting hole 1241 has a limiting effect on the first limiting member 1243, and the first limiting member 1243 and the mounting hole 1241 have no relative displacement, so that the first limiting member 1243 can move synchronously along with the first connecting portion 124 during the folding or unfolding process of the flexible display module 2.
As shown in fig. 7 to 9, the second connecting portion 124 is provided with a waist-shaped hole 1242 extending along the second direction, and the second limiting member 1244 is movably disposed in the waist-shaped hole 1242, and the second limiting member 1244 is adapted to move from one end to the other end of the waist-shaped hole 1242 when the flexible display module 2 moves between the folded position and the unfolded position. The waist-shaped hole 1242 comprises two parallel straight line sections and two semicircular arcs, wherein two ends of the two straight line sections are respectively flush, two ends of the two straight line sections are respectively connected with one semicircular arc, each semicircular arc protrudes towards the outer side of the waist-shaped hole 1242, and each semicircular arc is tangent to the two straight line sections.
It can be appreciated that, during the folding process of the flexible display module 2, the second limiting member 1244 may move toward one end of the waist-shaped hole 1242 along the extending direction of the waist-shaped hole 1242, and when the second limiting member 1244 abuts against one end of the waist-shaped hole 1242, it indicates that the flexible display module 2 has been folded in place; during the unfolding process of the flexible display module 2, the second limiting member 1244 can move towards the other end of the waist-shaped hole 1242 along the extending direction of the waist-shaped hole 1242, and when the second limiting member 1244 abuts against the other end of the waist-shaped hole 1242, the flexible display module 2 is shown to be unfolded.
A display device 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
The display device 100 according to an embodiment of the present invention includes: a flexible display module 2 and the flexible hinge 1 described above, the flexible hinge 1 being connected to the flexible display module 2 to move the flexible display module 2 between a folded position and an unfolded position.
According to the display device 100 of the embodiment of the present invention, the flexible hinge 1 includes: the connecting rod 11 and the elastic piece 12 are respectively connected with two opposite sides of the flexible display module 2 in the second direction by using the elastic piece 12, when the flexible display module 2 is folded or unfolded, the elastic piece 12 can elastically deform by taking the connecting rod 11 as a rotation center, so that the folding and the unfolding of the flexible display module 2 can be realized by only arranging the connecting rod 11 and the elastic piece 12, the number of parts of the flexible hinge 1 can be reduced, and meanwhile, the complexity of the structure can be simplified. In addition, the elastic member 12 includes the supporting portion 121, the first bending portion 122, the second bending portion 123 and the connecting portion 124, and compared with the gear disposed at the bending portion in the related art, the complexity of the structure of the bending portion can be simplified, which is beneficial to reducing the thickness of the bending portion, so that the light and thin display device 100 can be realized.
In some embodiments of the present invention, as shown in fig. 7-9, the flexible display module 2 includes: the buffer support 21, first well shell 22, second well shell 23 and flexible display 24, first well shell 22 is connected with the one end of the second direction of buffer support 21, second well shell 23 is connected with the other end of the second direction of buffer support 21, flexible display 24 is connected with buffer support 21, first well shell 22 and second well shell 23, and flexible display 24 and the range upon range of setting of buffer support 21, flexible hinge 1 and flexible display 24 distribute with the both sides of the thickness direction of buffer support 21, two connecting portion 124 are connected with first well shell 22 and second well shell 23 respectively, connecting rod 11 is towards the direction protrusion that is close to buffer support 21.
It will be appreciated that the first and second middle shells 22, 23 may provide connection and support for the flexible display screen 24 on both sides of the second direction, the buffer support 21 may provide support for the flexible display screen 24 at an intermediate position of the flexible display screen 24, in particular, the flexible hinge 1 is distributed on a side of the buffer support 21 facing away from the flexible display screen 24, the flexible hinge 1 may provide support for the buffer support 21 and directly provide indirect support and limitation for the flexible display screen 24 through buffering.
Specifically, in one example of the present invention, the flexible display module 2 includes: buffer support 21, first well shell 22, second well shell 23 and flexible display 24, buffer support 21's both ends are connected with first well shell 22, second well shell 23 respectively, buffer support 21's both ends are fixed completely with first well shell 22, second well shell 23, flexible display 24 is attached on the plane that buffer support 21, first well shell 22 and second well shell 23 constitute, flexible hinge 1 and flexible display 24 distribute with buffer support 21's thickness direction's both sides, flexible display module 2's both sides are equipped with first locating part 1243 and second locating part 1244 respectively, two connecting portions 124 of flexible hinge 1 include: the first connecting portion 124 and the second connecting portion 124, the first connecting portion 124 is provided with a mounting hole 1241, the first limiting member 1243 is inserted into the mounting hole 1241, the second connecting portion 124 is provided with a waist-shaped hole 1242 extending along the second direction, and the second limiting member 1244 is movably inserted into the waist-shaped hole 1242.
In some embodiments of the present invention, as shown in fig. 7 to 9, a side of the buffer bracket 21 facing the link 11 is provided with a buffer member 25, and the buffer member 25 is spaced between the buffer bracket 21 and the link 11. It can be appreciated that by arranging the buffer member 25 between the buffer support 21 and the connecting rod 11, the buffer member 25 can absorb the vibration generated by the flexible display screen 24 assembly during the folding or unfolding process, so as to avoid the influence of the vibration on the flexible display screen 24, thereby improving the reliability of the folding or unfolding process.
In some embodiments of the present invention, the elastic modulus of the cushioning brackets 21 is greater than the elastic modulus of the flexible display screen 24. It will be appreciated that the elastic modulus of the buffer support 21 is greater than that of the flexible display screen 24, that is, the strain of the buffer support 21 is smaller than that of the flexible display screen 24 during the folding process, so that the bending position of the flexible display screen 24 can be prevented from being pulled and the flexible display screen 24 can be prevented from being damaged.
In some embodiments of the present invention, as shown in fig. 9, in the folded position, a side of the link 11 adjacent the cushioning bracket 21 is in engagement with a side of the cushioning bracket 21 facing the link 11. It can be appreciated that after the side of the connecting rod 11 adjacent to the buffer support 21 is attached to the side of the buffer support 21 facing the connecting rod 11, the connecting rod 11 can play a role in supporting the bending part of the buffer support 21, and further support the flexible display screen 24 by using the buffer support 21, so as to avoid damage to the flexible display screen 24.
An electronic device according to an embodiment of the present invention is described below with reference to the drawings.
An electronic device according to an embodiment of the present invention includes: the display device 100 is described above.
According to an electronic device of an embodiment of the present invention, a flexible hinge 1 includes: the connecting rod 11 and the elastic piece 12 are respectively connected with two opposite sides of the flexible display module 2 in the second direction by using the elastic piece 12, when the flexible display module 2 is folded or unfolded, the elastic piece 12 can elastically deform by taking the connecting rod 11 as a rotation center, so that the folding and the unfolding of the flexible display module 2 can be realized by only arranging the connecting rod 11 and the elastic piece 12, the number of parts of the flexible hinge 1 can be reduced, and meanwhile, the complexity of the structure can be simplified. In addition, the elastic member 12 includes the supporting portion 121, the first bending portion 122, the second bending portion 123 and the connecting portion 124, and compared with the gear disposed at the bending portion in the related art, the complexity of the structure of the bending portion can be simplified, which is beneficial to reducing the thickness of the bending portion, so that the light and thin display device 100 can be realized.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (18)
1. A flexible hinge for a display device, the display device including a flexible display module, the flexible hinge coupled with the flexible display module to move the flexible display module between a folded position and an unfolded position, the flexible hinge comprising: a link extending in a first direction of the flexible display module, a cross-section of the link being formed in an arc shape, and an elastic member including:
The supporting part is connected with the connecting rod, and the outer contour of the cross section of the supporting part is matched with the inner contour of the cross section of the connecting rod;
The two first bending parts are respectively connected with two ends of the supporting part, and the protruding directions of the first bending parts are opposite to the protruding directions of the supporting part;
The two second bending parts are respectively connected with one ends of the two first bending parts, which are away from the supporting parts, and the protruding directions of the second bending parts are the same as the protruding directions of the supporting parts;
The two connecting parts are respectively connected with one ends of the two second bending parts, which are far away from the first bending parts, and the other ends of the two connecting parts are respectively connected with two sides of the flexible display module in a second direction, wherein the second direction is perpendicular to the first direction;
In the folding or unfolding process of the flexible display module, one of the two connecting parts moves along with the flexible display module and drives the second bending part and the first bending part to elastically deform relative to the supporting part,
The other of the two connection portions moves relative to the flexible display module during folding or unfolding of the flexible display module.
2. The flexible hinge according to claim 1, wherein the plurality of elastic members are provided in plurality, the plurality of elastic members being disposed at intervals in the first direction.
3. The flexible hinge according to claim 1, wherein the connecting rod is provided with a first connecting hole, the supporting portion is provided with a second connecting hole, and the connecting rod and the supporting portion are connected by riveting through the first connecting hole and the second connecting hole.
4. The flexible hinge according to claim 1, wherein the cross section of the connecting rod is formed in a circular arc shape, the central angle of the cross section of the connecting rod is α, and the following is satisfied: alpha is more than or equal to 90 degrees and less than or equal to 120 degrees.
5. The flexible hinge according to claim 1, wherein the concave side of the first bending portion is thinned to form a first thinned region.
6. The flexible hinge of claim 1, wherein the convex side of the first bend is thinned to form a second thinned region.
7. The flexible hinge according to claim 5, wherein the concave side of the second bending portion is thinned to form a third thinned region.
8. The flexible hinge according to claim 5, wherein the convex side of the second bending portion is thinned to form a fourth thinned region.
9. The flexible hinge according to claim 1, wherein the first bending portion is provided with a plurality of first through holes, and a plurality of the first through holes are spaced apart in the first direction.
10. The flexible hinge according to claim 1, wherein the second bending portion is provided with a plurality of second through holes, and a plurality of the second through holes are spaced apart in the first direction.
11. The flexible hinge according to claim 1, wherein the connection portion is formed in a flat plate shape.
12. The flexible hinge according to claim 1, wherein in the second direction, two opposite sides of the flexible display module are respectively provided with a first limiting member and a second limiting member, and the two connecting portions include:
the first connecting part is provided with a mounting hole, and the first limiting piece is inserted into the mounting hole;
The second connecting portion is provided with a waist-shaped hole extending along the second direction, the second limiting piece is movably arranged in the waist-shaped hole, and when the flexible display module moves between the folding position and the unfolding position, the second limiting piece is suitable for moving from one end of the waist-shaped hole to the other end of the waist-shaped hole.
13. A display device, comprising:
a flexible display module;
The flexible hinge of any of claims 1-12, connected with the flexible display module to move the flexible display module between a folded position and an unfolded position.
14. The display device of claim 13, wherein the flexible display module comprises:
A buffer bracket;
the first middle shell is connected with one end of the buffer bracket in the second direction;
The second middle shell is connected with the other end of the buffer bracket in the second direction;
The flexible display screen is connected with the buffer bracket, the first middle shell and the second middle shell, and is arranged in a lamination manner with the buffer bracket;
The flexible hinges and the flexible display screen are distributed on two sides of the thickness direction of the buffer support, the two connecting parts are respectively connected with the first middle shell and the second middle shell, and the connecting rods protrude towards the direction close to the buffer support.
15. The display device according to claim 14, wherein a side of the buffer support facing the link is provided with a buffer member, the buffer member being spaced between the buffer support and the link.
16. The display device of claim 14, wherein the buffer support has a modulus of elasticity that is greater than a modulus of elasticity of the flexible display screen.
17. The display device of claim 14, wherein in the folded position, a side of the link adjacent the buffer support is in engagement with a side of the buffer support facing the link.
18. An electronic device, comprising: the display device according to any one of claims 13-17.
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| CN202110791229.1A CN113503312B (en) | 2021-07-13 | 2021-07-13 | Flexible hinge, display device and electronic equipment |
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| CN202110791229.1A CN113503312B (en) | 2021-07-13 | 2021-07-13 | Flexible hinge, display device and electronic equipment |
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| CN107301821A (en) * | 2017-07-31 | 2017-10-27 | 上海中航光电子有限公司 | foldable display screen and display device |
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| CN113503312A (en) | 2021-10-15 |
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