CN114203049B - Bending supporting mechanism, flexible display device and bending jig - Google Patents
Bending supporting mechanism, flexible display device and bending jig Download PDFInfo
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- CN114203049B CN114203049B CN202111589303.8A CN202111589303A CN114203049B CN 114203049 B CN114203049 B CN 114203049B CN 202111589303 A CN202111589303 A CN 202111589303A CN 114203049 B CN114203049 B CN 114203049B
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- 238000005452 bending Methods 0.000 title claims abstract description 225
- 230000007246 mechanism Effects 0.000 title claims abstract description 103
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
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- General Engineering & Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a bending support mechanism, a flexible display device and a bending jig, relates to the technical field of display, and is used for solving the technical problem that a flexible screen is easy to crack; the supporting tables comprise a first supporting plate, a second supporting plate and a locking assembly; the first end of the first supporting plate is provided with two bulges which are arranged at intervals to form an installation space, and the two bulges are provided with first guide grooves; the second support plate is provided with a connecting end and a free end, sliding columns are arranged on two sides of the second support plate, and each sliding column is slidably arranged in the first guide groove; the locking component is arranged on the first supporting plate; when the bending support mechanism is switched from the unfolding state to the inward folding state, the sliding column slides in the first guide groove from the first position to the second position, and the free end of the second support plate rotates relative to the first support plate in a direction away from the flexible screen. The bending support mechanism is used for supporting the flexible screen.
Description
Technical Field
The application relates to the technical field of display, in particular to a bending support mechanism, a flexible display device and a bending jig.
Background
With the development of display technology, display devices capable of bending 360 ° have been attracting attention. The flexible display device generally includes a bending support mechanism and a flexible screen disposed on the bending support mechanism.
In the related art, the bending support mechanism generally includes two support plates disposed at intervals, each of which has a support surface; the flexible screen is arranged on the two supporting plates, and the non-luminous side of the flexible screen is adhered to the two supporting surfaces. The bending support mechanism has a flattened state, an inward folded state and an outward folded state. When the bending support mechanism is in a flattened state, the two support surfaces are coplanar, and the light-emitting side of the flexible screen is unfolded to be a plane; when the bending support mechanism is in an inward folding state, the two support plates rotate relatively, so that the two support surfaces are opposite, and the luminous side of the flexible screen is folded inwards; when the bending support mechanism is in an outward folding state, the two support plates reversely rotate, so that the two support surfaces are opposite to each other, and the luminous side of the flexible screen is folded outwards.
However, in the flexible display device with the bending support mechanism, the flexible screen is easy to crack in the bending process, and the display effect of the flexible display device is affected.
Disclosure of Invention
In view of the above problems, an embodiment of the present application provides a bending support mechanism, so as to solve the problem that a flexible screen is prone to cracking in a bending process, thereby ensuring a display effect of a flexible display device.
In order to achieve the above object, the embodiment of the present application provides the following technical solutions:
a first aspect of an embodiment of the present application provides a bending support mechanism, which includes two support tables hinged to each other; each supporting table comprises a first supporting plate, a second supporting plate and a locking assembly; the first supporting plate is provided with a first supporting surface for bonding the flexible screen; the first end of the first supporting plate is provided with two bulges which are arranged at intervals to form an installation space, and the side surfaces of the two bulges facing each other are respectively provided with a first guide groove; the second supporting plate is provided with a second supporting surface for supporting the flexible screen; the second support plate is provided with a connecting end and a free end, the connecting end is positioned in the installation space, sliding columns are arranged on two sides of the second support plate, each sliding column is slidably installed in the first guide groove, and the sliding column is provided with a first position and a second position in the first guide groove; the locking component is arranged on the first supporting plate and used for locking the position of the sliding column in the first guide groove; when the bending support mechanism is in an unfolding state and an outwards folding state, the locking assembly locks the sliding column at a first position in the first guide groove so that the first support surface and the second support surface are coplanar; when the bending support mechanism is switched from the unfolding state to the inward folding state, the locking assembly releases the locking of the sliding column at the first position, the sliding column slides in the first guide groove from the first position to the second position, and the free end of the second support plate rotates relative to the first support plate in a direction away from the flexible screen.
According to the bending support mechanism provided by the embodiment of the application, the first guide groove is formed in the bulge of the first support plate, the locking assembly is further arranged on the first support plate, and the sliding column which is slidably arranged in the first guide groove is arranged at the connecting end of the second support plate. When the bending support mechanism is in an unfolding state, the locking assembly locks the sliding column at a first position in the first guide groove so that a first support surface of the first support plate and a second support surface of the second support plate are coplanar; when the bending support mechanism is switched from the unfolding state to the inward folding state, the locking assembly releases the locking of the sliding column at the first position, and the sliding column can slide from the first position to the second position in the first guide groove, so that the free end of the second support plate rotates relative to the first support plate in a direction away from the flexible screen. The first support plate and the second support plate can rotate relatively, so that the bending length during inward folding can be increased, the curvature of the water drop-shaped structure is reduced, the compressive stress on the film layer on the light emitting side of the flexible screen is reduced, and the crack of the flexible screen is prevented; simultaneously, can also reduce the compressive stress that flexible screen luminous side rete received when infolding, with the difference between the tensile stress that flexible screen luminous side rete received when infolding, after bending support mechanism is infolding and infolding outward many times, can avoid the rete of flexible screen luminous side to take place fatigue fracture, prevent that the flexible screen from producing the crackle, guarantee flexible display device's display effect.
In one possible implementation, the first guide groove is an arc-shaped groove or an involute-shaped groove, and the first guide groove extends from the first end of the first support plate toward the first support surface.
In one possible implementation manner, a first accommodating groove and a second accommodating groove are arranged in the first supporting plate, and the first accommodating groove and the second accommodating groove are positioned at two sides of the first guiding groove and are communicated with the first guiding groove;
the locking assembly comprises a first locking block, a second locking block and a tension spring, wherein the first locking block is arranged in the first accommodating groove, and the second locking block is arranged in the second accommodating groove in a sliding manner; the tension spring is positioned in the second accommodating groove, one end of the tension spring is connected with the bottom surface of the second accommodating groove, and the other end of the tension spring is connected with the second locking block; at least one of the first locking block and the second locking block is an electromagnet;
when the first locking block or the second locking block is electrified, the first locking block and the second locking block are attracted, and the sliding column is limited to the first position; when the first locking block or the second locking block is powered off, the tension spring enables the first locking block and the second locking block to be separated, and the sliding column can slide from the first position to the second position in the first guide groove.
In one possible implementation manner, the locking assembly includes an electromagnetic block disposed in the first guide groove near the first position, and the material of the sliding column includes iron;
when the electromagnetic block is electrified, the sliding column is adsorbed on the electromagnetic block, and the sliding column is positioned at the first position; when the electromagnetic block is powered off, the sliding column is separated from the electromagnetic block, and the sliding column can slide from the first position to the second position in the first guide groove.
In one possible implementation manner, the side, with the second supporting surface, of the second supporting plate is further provided with a first curved surface, the first curved surface is in arc transition with the second supporting surface, and the first curved surface is bent in a direction away from the flexible screen.
In one possible implementation manner, a side of the second supporting plate facing away from the second supporting surface is a second curved surface, the second curved surface is in arc transition with the end surface of the free end, and the second curved surface is bent in a direction away from the first supporting surface.
In one possible implementation manner, the bending support assembly further includes a first connecting plate, two bending assemblies are respectively disposed on one sides of the support tables, first ends of the two bending assemblies are respectively connected with the first support plate, and second ends of the two bending assemblies are both hinged to the first connecting plate.
In one possible implementation, the bending assembly includes a first bending plate, a second bending plate, and a second connecting plate, each of the first bending plate, the second bending plate, and the second connecting plate being located on one side of the first support plate; a first end of the first bending plate is connected with one side of the first supporting plate, and a second end of the first bending plate is rotatably connected to the second connecting plate; the first end of the second bending plate is rotatably connected to the second connecting plate, and the second end of the second bending plate is rotatably connected to the first connecting plate.
In one possible implementation manner, the bending assembly further comprises a first limiting plate and a second limiting plate, the first limiting plate is arranged on one side, opposite to the first supporting surface, of the second bending plate, and the first limiting plate is connected to the first connecting plate; when the bending support mechanism is in an outward bending state, the first limiting plate limits the rotation of the two second bending plates in the two bending assemblies;
the second limiting plate is arranged on one side of the first bending plate and one side of the second bending plate, which faces the first supporting surface, and is connected to the second connecting plate; when the bending supporting mechanism is in an inward bending state, the second limiting plate limits the first bending plate and the second bending plate to rotate.
In one possible implementation, the second end of the first bending plate is provided with a first castellated structure, and the first end of the second bending plate is provided with a second castellated structure, which is engaged with the first castellated structure.
In one possible implementation, the second end of each of the second bending flaps is provided with a third castellated structure, and the third castellated structure of the second end of one of the second bending flaps is engaged with the third castellated structure of the second end of the other of the second bending flaps.
In a possible implementation manner, the bending support mechanism further comprises two guide plates, wherein the two guide plates are positioned on one side of the second support plate and are connected with the first connecting plate; a second guide groove is formed in each guide plate; the second support plate is provided with a guide post, and the guide post is slidably arranged in the second guide groove.
In one possible implementation manner, the second guide groove comprises an inward folding section, an unfolding section and an outward folding section which are connected in sequence; when the bending supporting mechanism is in an inward bending state, the guide post is positioned in the inward bending section; when the bending support mechanism is in a flattened state, the guide post is positioned in the unfolding section; when the bending support mechanism is in an outward bending state, the guide post is positioned in the outward bending section.
A second aspect of an embodiment of the present application provides a flexible display device, including a flexible screen and a bending support mechanism according to any one of the above, where the flexible screen is disposed on the bending support mechanism.
The flexible display device of the embodiment of the application has the advantages of the bending support mechanism because of the bending support mechanism, and is not described herein.
A third aspect of the embodiments of the present application provides a bending fixture, including any one of the above bending support mechanisms.
The bending jig of the embodiment of the application has the advantages of the bending supporting mechanism because of the bending supporting mechanism, and is not described herein.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a bending support mechanism in the related art;
FIG. 2 is a schematic view of the bending support mechanism in FIG. 1 in an folded state;
fig. 3 is a schematic structural view of the bending support mechanism in fig. 1 in an outwardly folded state
Fig. 4 is a schematic view of a first perspective structure of a bending support mechanism according to an embodiment of the present application;
FIG. 5 is a schematic view of a second perspective view of the bending support mechanism of FIG. 4;
FIG. 6 is a schematic view of a connection structure between a first support plate and a second support plate in an implementation of an embodiment of the present application;
FIG. 7 is a schematic view of the locking assembly of FIG. 6 unlocking a slide column in a first position;
FIG. 8 is a schematic view of a connection structure between a first support plate and a second support plate in another implementation of an embodiment of the present application;
FIG. 9 is a schematic view of the locking assembly of FIG. 8 unlocking a slide column in a first position;
FIG. 10 is a schematic view of the bending support mechanism of FIG. 4 in an unfolded state;
FIG. 11 is a schematic view of the bending support mechanism in FIG. 4 in a folded-in state;
FIG. 12 is a schematic view of the bending support mechanism in FIG. 4 in an outwardly folded state;
FIG. 13 is a schematic view of the bending assembly of FIG. 4 when folded in;
FIG. 14 is a schematic view of the bending assembly of FIG. 4 when folded out;
fig. 15 is a schematic view of a connection structure between the guide post and the guide plate of the second support plate.
Reference numerals illustrate:
10. a support table;
110. a first support plate; 111. A first support surface; 112. A protrusion;
113. a first guide groove; 114. An installation space; 115. A first accommodation groove;
116. a second accommodation groove; 120. A second support plate; 121. A second support surface;
122. a connection end; 123. A free end; 124. A sliding column;
125. a first curved surface; 126. A second curved surface; 127. A guide post;
130. a locking assembly; 131. A first locking block; 132. A second locking block;
133. a tension spring; 134. An electromagnetic block;
20. a first connection plate;
30. a bending assembly;
310. a first bending plate; 311. A first rotating shaft; 320. A second bending plate;
321. a second rotating shaft; 322. A third rotating shaft; 330. A second connecting plate;
340. a first limiting plate; 350. A second limiting plate;
40. a guide plate;
410. a second guide groove; 411. An inward folding section; 412. An expansion section;
413. an outward folding section;
50. a flexible screen;
60. a support plate; 61. A support surface.
Detailed Description
Referring to fig. 1, in the related art, a bending support mechanism of a flexible display device generally includes two support plates 60, each support plate 60 having one support surface 61, and a non-light emitting side of a flexible screen 50 is adhered to the two support surfaces 61. When the bending support structure is in the unfolded state, the two support plates 60 are flush, a space is reserved between the two support plates 60, the two support surfaces 61 are coplanar, and the light-emitting side of the flexible screen 50 is flattened into a plane. Referring to fig. 2, in the folded-in state of the folded support structure, the two support plates 60 are relatively rotated to the positions where the two support surfaces 61 are opposite, so that the portion of the flexible screen 50 between the two support plates 60 is folded to the light emitting side to form a drop-shaped structure. Referring to fig. 3, when the bending support structure is in the folded-out state, the two support plates 60 are reversely rotated to the position where the two support surfaces 61 are opposite, so that the portion of the flexible screen 50 between the two support plates 60 is bent to the non-light emitting side to form a semicircular arc structure.
The inventor has found that the flexible display device having the bending mechanism in the related art has a technical problem that the flexible screen 50 is prone to crack after bending. The inventors have found that the reason for this is that, in the folded-in state of the bending support mechanism, the film layer on the light-emitting side of the flexible screen 50, for example, the packaging film layer or the touch layer, is subjected to excessive compressive stress, causing cracks to occur in the flexible screen. Alternatively, when the bending support mechanism is in the folded-out state, the film layer on the light emitting side of the flexible screen 50 is subjected to tensile stress. After the bending support mechanism is folded inwards and outwards for many times, the film layer on the light-emitting side of the flexible screen 50 is subjected to alternating stress, and the film layer on the light-emitting side of the flexible screen 50 is easy to fatigue fracture due to the fact that the difference between the tensile stress and the compressive stress is large, so that the flexible screen is cracked, and the effect of the flexible display device is affected.
In view of the above technical problems, the embodiment of the application provides a bending support mechanism, wherein each support plate is provided with a first rotatable support plate and a second rotatable support plate, and when the bending support mechanism is in an inward folding state, the first support plate and the second support plate can relatively rotate to increase the bending length during inward folding, so that the curvature of a water drop structure is reduced, the compressive stress on a film layer on the light emitting side of a flexible screen is reduced, and the crack of the flexible screen is avoided; meanwhile, the difference between the compressive stress and the tensile stress can be reduced, and after the bending support mechanism is folded inwards and outwards for many times, fatigue fracture of the film layer on the luminous side of the flexible screen is avoided, cracks of the flexible screen are prevented, and the display effect of the flexible display device is guaranteed.
In order to make the above objects, features and advantages of the embodiments of the present application more comprehensible, the technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 4 and 5, an embodiment of the present application provides a bending support mechanism comprising two support tables 10 hinged to each other. A flexible screen 50 is provided on the support table 10 for supporting the non-light emitting side of the flexible screen 50. When the bending support mechanism is in the unfolded state, the two support tables 10 are flush, and the light-emitting side of the flexible screen 50 is unfolded to be a plane. In the folded state, the two support tables 10 are relatively rotated to the position where the light emitting sides of the flexible screen 50 are opposite, so that the portion of the flexible screen 50 between the two support tables 10 is folded inwards to form a water drop-shaped structure. When the bending support structure is in the folded-out state, the two support tables 10 reversely rotate to the position where the light emitting sides of the flexible screen 50 are opposite, so that the part of the flexible screen 50 between the two support tables 10 is bent outwards to form a semicircular arc structure.
Referring to both fig. 6 and 7, each support stand 10 includes a first support plate 110, a second support plate 120, and a locking assembly 130; the first support plate 110 has a first support surface 111 for adhering the flexible screen 50. The first end of the first support plate 110 is provided with two protrusions 112, the two protrusions 112 are spaced apart to form an installation space 114, and sides of the two protrusions 112 facing each other are each provided with a first guide groove 113. The second support plate 120 has a second support surface 121 for supporting the flexible screen 50. The second support plate 120 further has a connection end 122 and a free end 123, the connection end 122 is located in the installation space 114, sliding columns 124 are disposed on two sides of the second support plate 120, each sliding column 124 is slidably mounted in the first guide groove 113, and the sliding columns 124 have a first position and a second position in the first guide groove 113. A locking assembly 130 is provided on the first support plate 110 for locking the position of the sliding column 124 within the first guide groove 113.
When the bending support mechanism is in the unfolded state, the sliding column 124 is located in the first position in the first guide groove 113, so that the first support surface 111 and the second support surface 121 are coplanar. When the bending support mechanism is switched from the unfolded state to the folded-in state, the sliding column 124 slides in the first guide groove 113 from the first position to the second position, and the free end 123 of the second support plate 120 rotates relative to the first support plate 110 in a direction away from the flexible screen 50.
In the bending support mechanism of the embodiment of the application, the protrusion 112 of the first support plate 110 is provided with the first guide groove 113, the first support plate 110 is also provided with the locking assembly 130, and the connecting end 122 of the second support plate 120 is provided with the sliding column 124 slidably mounted in the first guide groove 113. Referring to fig. 6, 10 and 11, the locking assembly 130 locks the sliding post 124 in the first position within the first guide slot 113 such that the first support surface 111 of the first support plate 110 and the second support surface 121 of the second support plate 120 are coplanar when the bending support mechanism is in the unfolded state and the folded-out state. Referring to fig. 7 and 12, when the folding support mechanism is switched from the unfolded state to the folded state, the locking assembly 130 releases the locking of the sliding post 124 in the first position, and the sliding post 124 can slide in the first guide groove 113 from the first position to the second position, so that the free end 123 of the second support plate 120 rotates relative to the first support plate 110 in a direction away from the flexible screen 50, and an included angle α is formed between the first support surface 111 and the second support surface 121.
In the folded state, the first support plate 110 and the second support plate 120 can rotate relatively, and the bending length of the flexible screen 50 when folded is B. Referring to fig. 1, the bending length of the flexible screen 50 in the related art is a, B is greater than a, and the bending length of the flexible screen 50 in the bending is increased, so that the curvature of the water drop structure is reduced, the compressive stress applied to the film layer on the light emitting side of the flexible screen 50 is reduced, and the crack of the flexible screen 50 is prevented; meanwhile, the difference between the compressive stress received by the luminous side film layer of the flexible screen 50 during inward folding and the tensile stress received by the luminous side film layer of the flexible screen 50 during outward folding can be reduced, fatigue fracture of the film layer on the luminous side of the flexible screen 50 is avoided after the bending support mechanism is subjected to inward folding and outward folding for a plurality of times, cracks of the flexible screen 50 are prevented, and the display effect of the flexible display device is ensured.
For example, referring to fig. 6, the first guide groove 113 provided on the first support plate 110 may be a circular arc groove or an involute groove, and the first guide groove 113 extends in a direction from the first end of the first support plate 110 toward the first support surface 111, so that the free end 123 of the second support plate 120 can rotate relative to the first support plate 110 in a direction away from the flexible screen 50 during sliding of the sliding post 124 from the notch of the first guide groove 113 toward the groove bottom.
The locking assembly 130 is used to lock or unlock the position of the sliding column 124 within the first guide groove 113. In some possible implementations of embodiments of the present application, the locking assembly 130 is generally disposed on the first support plate 110. Referring to fig. 6 and 7, a first receiving groove 115 and a second receiving groove 116 are provided in the first support plate 110, and the first receiving groove 115 and the second receiving groove 116 are located at both sides of the first guide groove 113 and are both in communication with the first guide groove 113. The locking assembly 130 may include a first locking block 131, a second locking block 132, and a tension spring 133, the first locking block 131 being disposed in the first receiving groove 115. The second locking block 132 is slidably disposed in the second receiving groove 116. The tension spring 133 is located in the second accommodating groove 116, one end of the tension spring 133 is connected with the bottom surface of the second accommodating groove 116, and the other end of the tension spring 133 is connected with the second locking block 132. At least one of the first locking block 131 and the second locking block 132 is an electromagnet.
When the first locking block 131 or the second locking block 132 is electrified, the first locking block 131 and the second locking block 132 are attracted to limit the sliding column 124 to the first position; when the first locking block 131 or the second locking block 132 is powered off, the tension spring 133 separates the first locking block 131 from the second locking block 132, and the sliding column 124 can slide from the first position to the second position in the first guide groove 113.
Referring to fig. 6, when the bending support mechanism is in the unfolded state and the folded state, the first locking block 131 or the second locking block 132 is energized, and since at least one of the first locking block 131 and the second locking block 132 is an electromagnet, the first locking block 131 and/or the second locking block 132 have magnetism, so that the first locking block 131 and the second locking block 132 are attracted to each other, the tension spring 133 is stretched, and the first locking block 131 and the second locking block 132 close the first guide groove 113. The sliding post 124 of the second support plate 120 cannot slide toward the bottom of the first guide groove 113, and the sliding post 124 is locked at the first position in the first guide groove 113, so that the first support plate 110 and the second support plate 120 cannot rotate, and the first support surface 111 and the second support surface 121 are coplanar.
Referring to fig. 7, in the folded state of the folding supporting mechanism, the first locking piece 131 or the second locking piece 132 is powered off, the first locking piece 131 and the second locking piece 132 have no magnetism, the tension spring 133 applies a restoring force to the second locking piece 132, the second locking piece 132 and the first locking piece 131 are separated from each other, the first locking piece 131 and the second locking piece 132 open the first guide groove 113, and the locking of the sliding column 124 at the first position is released. The sliding column 124 can move from the first position to the second position in the first guide groove 113, and the first support plate 110 and the second support plate 120 relatively rotate, so that an included angle α is formed between the first support surface 111 and the second support surface 121, the bending length during inward folding is increased, and the curvature of the water-drop structure is reduced, so that the compressive stress applied to the light-emitting side film layer of the flexible screen 50 is reduced.
In other possible implementations of embodiments of the present application, referring to fig. 8 and 9, the locking assembly 130 may include an electromagnetic block 134 disposed in the first guide slot 113 near the first position, and the material of the sliding post 124 may include iron. When the electromagnet block 134 is energized, the sliding column 124 is adsorbed on the electromagnet block 134, and the sliding column 124 is located at the first position, so that the first support plate 110 and the second support plate 120 cannot rotate relatively. When the electromagnet block 134 is powered off, the sliding column 124 is separated from the electromagnet block 134, and the sliding column 124 can slide from the first position to the second position in the first guide groove 113, so that the first support plate 110 and the second support plate 120 can rotate relatively.
Referring to fig. 4 and 5, the side of the second support plate 120 having the second support surface 121 may further have a first curved surface 125, the first curved surface 125 and the second support surface 121 arc-transition, and the first curved surface 125 is curved in a direction away from the flexible screen 50. When the bending support mechanism is folded inwards, the water drop-shaped structure formed by the flexible screen 50 is contacted with the second support surface 121 and the first curved surface 125 on the second support plate 120. The first curved surface 125 can reduce the pressure generated on the water droplet-shaped structure and prevent the water droplet-shaped structure from cracking.
The second support plate 120 has a second curved surface 126 on a side facing away from the second support surface 121, where the second curved surface 126 is in arc transition with the end surface of the free end 123, and the second curved surface 126 is curved in a direction away from the first support surface 111. When the bending support mechanism is folded outwards, the semicircular arc structure formed by the flexible screen 50 is contacted with the second curved surface 126 and the end surface of the free end 123. Since the second curved surface 126 is curved in a direction away from the first supporting surface 111 and is in arc transition with the end surface of the free end 123, when it is in contact with the semicircular arc structure of the flexible screen 50, the pressure generated by the semicircular arc structure can be reduced, and cracking of the semicircular arc structure can be prevented.
Referring to fig. 4 and 5, the bending support mechanism according to the embodiment of the present application may further include a first connecting plate 20, one side of each of the two support tables 10 is provided with a bending assembly 30, first ends of the two bending assemblies 30 are respectively connected with the first support plate 110, and second ends of the two bending assemblies 30 are hinged with the first connecting plate 20. The bending support mechanism can guide the first support plate 110 in the process of folding inwards and outwards, so that the movement track of the first support plate 110 is controllable.
Illustratively, referring to fig. 4 and 5, the bending assembly 30 may include a first bending flap 310, a second bending flap 320, and a second connecting plate 330, each of the first bending flap 310, the second bending flap 320, and the second connecting plate 330 being located on one side of the first support plate 110. A first end of the first bending plate 310 is connected to one side of the first support plate 110, for example, the first end of the first bending plate 310 may be connected to one side of the first support plate 110 by fastening bolts. The second end of the first bending plate 310 is rotatably connected to the second connecting plate 330, for example, the second end of the first bending plate 310 may be rotatably connected to the second connecting plate 330 through the first rotating shaft 311. The first end of the second bending plate 320 is rotatably connected to the second connecting plate 330, for example, the first end of the second bending plate 320 may be rotatably connected to the second connecting plate 330 through the second rotating shaft 321. The second end of the second bending plate 320 is rotatably connected to the first connecting plate 20, for example, the second end of the second bending plate 320 may be rotatably connected to the first connecting plate 20 through a third rotation shaft 322.
Illustratively, the second bending plate 320 of the two bending assemblies 30 may be axisymmetrically disposed along the center line S of the first connecting plate 20, and then the two first supporting plates 110 of the two supporting tables 10 may be symmetrically rotated along the center line S, thereby enabling the flexible screen 50 to be symmetrically bent.
Referring to fig. 13, in the unfolded state, the first bending plate 310, the second bending plate 320 and the second connecting plate 330 are all arranged along a same line, such as along the y-direction in fig. 5, such that the first supporting surface 111 of the first supporting plate 110 and the second supporting surface 121 of the second supporting plate 120 are coplanar. When the bending support mechanism is switched from the unfolded state to the folded state, the second bending plate 320 can rotate forward along the z-axis relative to the first connecting plate 20, and the first supporting plate 110 is driven to rotate around the third rotating shaft 322 by the first bending plate 310, that is, the axis of the third rotating shaft 322 is the folded axis of the first supporting plate 110.
Referring to fig. 14, when the bending support mechanism is switched from the unfolded state to the folded state, the first bending plate 310 can rotate in the negative direction of the z-axis relative to the second connecting plate 330 and drive the first support plate 110 to rotate around the first rotating shaft 311, i.e. the axis of the first rotating shaft 311 is the folded axis of the first support plate 110. The folded-in axis of the first support plate 110 is closer to the center line S of the first connection plate 20 than the folded-out axis, and the folded-out radius of the flexible screen 50 connected to the first support surface 111 is increased such that the folded-out radius of the flexible screen 50 is greater than the folded-in radius. Because of the limitation of the structure and the material of the film layer of the flexible screen 50, the outward folding radius of the flexible screen 50 is larger than the inward folding radius, and the inward folding axis of the first supporting plate 110 is set to be closer to the central line S of the first connecting plate 20 than the outward folding axis, so that the flexible screen 50 can be ensured to have a larger folding radius during outward folding, thereby preventing the flexible screen 50 from being damaged in the folding process, and prolonging the service life of the flexible screen 50.
In one possible implementation of an embodiment of the present application, the bending assembly 30 further includes a first stop plate 340 and a second stop plate 350.
The first limiting plate 340 is disposed on a side of the second bending plate 320 opposite to the first supporting surface 111, and the first limiting plate 340 is connected to the first connecting plate 20, for example, the first limiting plate 340 may be integrally formed with the first connecting plate 20. When the bending support mechanism is in the folded-out state, the first limiting plate 340 limits the rotation of the two second bending plates 320 in the two bending assemblies 30, so as to ensure that the first support plate 110 rotates at the first rotating shaft 311.
The second limiting plate 350 is disposed on a side of the first bending plate 310 and the second bending plate 320 facing the first supporting surface 111, and the second limiting plate 350 is connected to the second connecting plate 330, for example, the second limiting plate 350 may be integrally formed with the second connecting plate 330. The second limiting plate 350 can limit the rotation of the first bending plate 310 and the second bending plate 320 when the bending support mechanism is in the folded state, so as to ensure that the first support plate 110 rotates at the third rotating shaft 322.
Illustratively, the second end of the first bending plate 310 is provided with a first tooth-shaped structure, and the first end of the second bending plate 320 is provided with a second tooth-shaped structure, and the second tooth-shaped structure is meshed with the first tooth-shaped structure, so that the rotation of the first bending plate 310 and the second bending plate 320 is restrained, and the stability of the first bending plate 310 and the second bending plate 320 during rotation is improved.
Illustratively, the second end of each second bending plate 320 is provided with a third tooth-shaped structure, and the third tooth-shaped structure of the second end of one second bending plate 320 is meshed with the third tooth-shaped structure of the second end of the other second bending plate 320, so as to facilitate restraining the rotation of the two second bending plates 320, and improve the stability of the second bending plates 320 during rotation.
Referring to fig. 4 and 15, the bending support mechanism may further include two guide plates 40, the guide plates 40 being used to guide the second support plate 120 during bending. Both guide plates 40 are located at one side of the second support plate 120 and are connected to the first connection plate 20. A second guide groove 410 is provided on each guide plate 40. The second support plate 120 is provided with a guide post 127, and the guide post 127 is slidably disposed in the second guide groove 410.
Illustratively, referring to fig. 4, the second guide slot 410 may include an invaginated section 411, an unfolded section 412, and an invaginated section 413 connected in sequence. When the bending support mechanism is in an inward folding state, the guide column is positioned in the inward folding section 411; when the bending support mechanism is in the flattened state, the guide posts are positioned in the expanding section 412; when the bending support mechanism is in the folded-out state, the guide post is positioned in the folded-out section 413.
The embodiment of the application also provides a flexible display device, which comprises the flexible screen 50 and the bending support mechanism, wherein the flexible screen 50 is arranged on the bending support mechanism. The flexible display device of the embodiment of the application has the advantages of the bending support mechanism because of the bending support mechanism, and is not described herein.
The embodiment of the application also provides a bending jig which comprises the bending supporting mechanism. The bending jig of the embodiment of the application has the advantages of the bending supporting mechanism because of the bending supporting mechanism, and is not described herein.
Generally, terms should be understood at least in part by use in the context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, at least in part depending on the context. Similarly, terms such as "a" or "an" may also be understood to convey a singular usage or a plural usage, depending at least in part on the context.
It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).
Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (15)
1. The bending supporting mechanism is characterized by comprising two supporting tables which are hinged with each other; each supporting table comprises a first supporting plate, a second supporting plate and a locking assembly; the first supporting plate is provided with a first supporting surface for bonding the flexible screen; the first end of the first supporting plate is provided with two bulges which are arranged at intervals to form an installation space, and the side surfaces of the two bulges facing each other are respectively provided with a first guide groove;
the second supporting plate is provided with a second supporting surface for supporting the flexible screen; the second support plate is provided with a connecting end and a free end, the connecting end is positioned in the installation space, sliding columns are arranged on two sides of the second support plate, each sliding column is slidably installed in the first guide groove, and the sliding column is provided with a first position and a second position in the first guide groove;
the locking component is arranged on the first supporting plate and used for locking the position of the sliding column in the first guide groove;
when the bending support mechanism is in an unfolding state and an outwards folding state, the locking assembly locks the sliding column at a first position in the first guide groove so that the first support surface and the second support surface are coplanar; when the bending support mechanism is switched from the unfolding state to the inward folding state, the locking assembly releases the locking of the sliding column at the first position, the sliding column slides in the first guide groove from the first position to the second position, and the free end of the second support plate rotates relative to the first support plate in a direction away from the flexible screen.
2. The bending support mechanism according to claim 1, wherein the first guide groove is an arc-shaped groove or an involute-shaped groove, and the first guide groove extends in a direction from the first end of the first support plate toward the first support surface.
3. The bending support mechanism according to claim 1, wherein a first receiving groove and a second receiving groove are provided in the first support plate, the first receiving groove and the second receiving groove being located on both sides of the first guide groove and communicating with the first guide groove;
the locking assembly comprises a first locking block, a second locking block and a tension spring, wherein the first locking block is arranged in the first accommodating groove, and the second locking block is arranged in the second accommodating groove in a sliding manner; the tension spring is positioned in the second accommodating groove, one end of the tension spring is connected with the bottom surface of the second accommodating groove, and the other end of the tension spring is connected with the second locking block; at least one of the first locking block and the second locking block is an electromagnet;
when the first locking block or the second locking block is electrified, the first locking block and the second locking block are attracted, and the sliding column is limited to the first position; when the first locking block or the second locking block is powered off, the tension spring enables the first locking block and the second locking block to be separated, and the sliding column can slide from the first position to the second position in the first guide groove.
4. The bending support mechanism according to claim 1, wherein the locking assembly comprises an electromagnetic block disposed within the first guide slot proximate the first location, the sliding post comprising iron;
when the electromagnetic block is electrified, the sliding column is adsorbed on the electromagnetic block, and the sliding column is positioned at the first position; when the electromagnetic block is powered off, the sliding column is separated from the electromagnetic block, and the sliding column can slide from the first position to the second position in the first guide groove.
5. The bending support mechanism according to any one of claims 1-4, wherein a side of the second support plate having the second support surface further has a first curved surface, the first curved surface transitions with the second support surface in a circular arc, and the first curved surface is curved in a direction away from the flexible screen.
6. The bending support mechanism according to any one of claims 1-4, wherein a side of the second support plate facing away from the second support surface is a second curved surface, the second curved surface transitions with an end surface arc of the free end, and the second curved surface is curved in a direction away from the first support surface.
7. The bending support mechanism according to any one of claims 1-4, further comprising a first connecting plate, wherein a bending assembly is provided on each side of the two support tables, and wherein first ends of the two bending assemblies are respectively connected to the first support plate, and second ends of the two bending assemblies are both hinged to the first connecting plate.
8. The fold support mechanism of claim 7, wherein the fold assembly includes a first bend flap, a second bend flap, and a second web, the first bend flap, the second bend flap, and the second web each being located on one side of the first support panel; a first end of the first bending plate is connected with one side of the first supporting plate, and a second end of the first bending plate is rotatably connected to the second connecting plate; the first end of the second bending plate is rotatably connected to the second connecting plate, and the second end of the second bending plate is rotatably connected to the first connecting plate.
9. The bending support mechanism of claim 8, wherein the bending assembly further comprises a first limiting plate and a second limiting plate, the first limiting plate being disposed on a side of the second bending plate facing away from the first support surface, the first limiting plate being connected to the first connecting plate; when the bending support mechanism is in an outward bending state, the first limiting plate limits the rotation of the two second bending plates in the two bending assemblies;
the second limiting plate is arranged on one side of the first bending plate and one side of the second bending plate, which faces the first supporting surface, and is connected to the second connecting plate; when the bending supporting mechanism is in an inward bending state, the second limiting plate limits the first bending plate and the second bending plate to rotate.
10. The fold support mechanism according to claim 8, wherein the second end of the first bend plate is provided with a first castellated structure and the first end of the second bend plate is provided with a second castellated structure that engages the first castellated structure.
11. The fold support mechanism according to claim 8, wherein the second end of each of the second bending flaps is provided with a third castellated structure, the third castellated structure of the second end of one of the second bending flaps engaging the third castellated structure of the second end of the other of the second bending flaps.
12. The bending support mechanism according to claim 7, further comprising two guide plates, both of which are located on one side of the second support plate and connected to the first connection plate; a second guide groove is formed in each guide plate; the second support plate is provided with a guide post, and the guide post is slidably arranged in the second guide groove.
13. The bending support mechanism of claim 12, wherein the second guide slot comprises an inward fold, an outward fold, and an outward fold connected in sequence; when the bending supporting mechanism is in an inward bending state, the guide post is positioned in the inward bending section; when the bending support mechanism is in a flattened state, the guide post is positioned in the unfolding section; when the bending support mechanism is in an outward bending state, the guide post is positioned in the outward bending section.
14. A flexible display device comprising a flexible screen and a bending support mechanism according to any one of claims 1 to 13, wherein the flexible screen is disposed on the bending support mechanism.
15. A bending jig comprising the bending support mechanism of any one of claims 1-13.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111589303.8A CN114203049B (en) | 2021-12-23 | 2021-12-23 | Bending supporting mechanism, flexible display device and bending jig |
| PCT/CN2022/114169 WO2023116007A1 (en) | 2021-12-23 | 2022-08-23 | Bendable supporting mechanism, flexible display device, and bending jig |
| KR1020237031332A KR20230140591A (en) | 2021-12-23 | 2022-08-23 | Bending support mechanism, flexible display device and bending jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111589303.8A CN114203049B (en) | 2021-12-23 | 2021-12-23 | Bending supporting mechanism, flexible display device and bending jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114203049A CN114203049A (en) | 2022-03-18 |
| CN114203049B true CN114203049B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111589303.8A Active CN114203049B (en) | 2021-12-23 | 2021-12-23 | Bending supporting mechanism, flexible display device and bending jig |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20230140591A (en) |
| CN (1) | CN114203049B (en) |
| WO (1) | WO2023116007A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114203049B (en) * | 2021-12-23 | 2023-11-28 | 合肥维信诺科技有限公司 | Bending supporting mechanism, flexible display device and bending jig |
| WO2023191522A1 (en) * | 2022-03-30 | 2023-10-05 | 삼성전자 주식회사 | Electronic apparatus comprising flexible display |
| CN114882797A (en) * | 2022-06-01 | 2022-08-09 | 武汉华星光电半导体显示技术有限公司 | Display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20230140591A (en) | 2023-10-06 |
| CN114203049A (en) | 2022-03-18 |
| WO2023116007A1 (en) | 2023-06-29 |
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