CN114220354A - Flexible display device and mobile terminal - Google Patents
Flexible display device and mobile terminalDownload PDFInfo
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- CN114220354A CN114220354ACN202111659633.XACN202111659633ACN114220354ACN 114220354 ACN114220354 ACN 114220354ACN 202111659633 ACN202111659633 ACN 202111659633ACN 114220354 ACN114220354 ACN 114220354A
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- 238000004804windingMethods0.000claimsdescription18
- 238000003780insertionMethods0.000claimsdescription13
- 230000037431insertionEffects0.000claimsdescription13
- 230000013011matingEffects0.000claimsdescription4
- 230000000149penetrating effectEffects0.000claimsdescription3
- 241001391944Commicarpus scandensSpecies0.000abstract1
- 230000000694effectsEffects0.000description9
- 238000005452bendingMethods0.000description4
- 238000010586diagramMethods0.000description3
- 238000000034methodMethods0.000description3
- 238000005204segregationMethods0.000description3
- 230000002337anti-portEffects0.000description2
- 238000004519manufacturing processMethods0.000description2
- 238000002788crimpingMethods0.000description1
- 238000005516engineering processMethods0.000description1
- 238000012986modificationMethods0.000description1
- 230000004048modificationEffects0.000description1
- 238000006467substitution reactionMethods0.000description1
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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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Abstract
Description
Technical Field
The embodiment of the application belongs to the technical field of display, and particularly relates to a flexible display device and a mobile terminal.
Background
With the continuous development of display technologies, people have made higher demands on flexible display devices, and the size of the display screen of the flexible display device is required to be adjustable. The flexible display device generally comprises a scroll and a flexible screen, wherein one end of the flexible screen is connected with the scroll, and when the scroll rotates, the flexible screen is curled or unfolded, so that a display picture of the flexible screen can be adjusted. However, when the flexible screen is curled, the inorganic layer of the flexible screen is easily broken or the film layers in the flexible screen are separated from each other, thereby affecting the display effect of the flexible display device.
Disclosure of Invention
In view of this, embodiments of the present application provide a flexible display device and a mobile terminal, so as to solve the technical problem that when a flexible screen is curled, an inorganic layer of the flexible screen is easily broken or films in the flexible screen are easily separated from each other.
The embodiment of the application provides a flexible display device, which comprises a flexible screen and a supporting mechanism, wherein the supporting mechanism comprises a scroll and a plurality of arc-shaped supporting plates which are sequentially hinged, and one arc-shaped supporting plate at one end of the plurality of arc-shaped supporting plates which are sequentially hinged is hinged with the scroll; one end of the flexible screen is fixedly connected with the reel; the plurality of arc-shaped support plates hinged in sequence are configured to: forming a helical support around the roller when the flexible screen is rolled around the roller; when the flexible screen is unfolded, a wave-shaped support is formed, and the wave crests of the wave-shaped support are coplanar.
The flexible display device of this application embodiment, supporting mechanism are including a plurality of arc backup pads of articulated in proper order, and an arc backup pad that is located one end among a plurality of arc backup pads is articulated with the spool, can drive a plurality of arc backup pads when the spool rotates and rotate. When flexible display device is in the crimping state, when the flexible screen curls around the spool promptly, the spool rotates and drives a plurality of arc backup pads simultaneously and rotates, articulated a plurality of arc backup pads form the spiral support piece who encircles the spool in proper order, spiral support piece supports the flexible screen, make the radius of curling of flexible screen increase gradually at the in-process of curling, thereby reduce the curvature of curling of flexible screen, reduce the bending stress of flexible screen, avoid causing the inorganic layer production fracture of flexible screen and/or the rete alternate segregation in the flexible screen, and then guarantee flexible display device's display effect.
In addition, when flexible display device is in the crimp state, when the flexible screen expandes promptly, the spool antiport drives a plurality of arc backup pads antiport simultaneously, and articulated a plurality of arc backup pads in proper order form wave support piece, and each crest coplane of wave support piece to support the flexible screen that expandes, prevent that the flexible screen from taking place to sink, thereby guarantee flexible display device's display effect.
In some implementations that may include the above-mentioned embodiment, one end of each of two adjacent arc-shaped support plates is provided with two opposite connecting arms, each of the connecting arms is provided with a first through hole, and an axis of the first through hole is parallel to an axis of the winding shaft; one end of the other arc-shaped supporting plate is provided with an inserting arm, the inserting arm is inserted between the two connecting arms, and a second through hole opposite to the first through hole is formed in the inserting arm; the supporting mechanism further comprises a first rotating shaft, and the first rotating shaft is arranged in the second through hole and the first through hole in a penetrating mode.
In some implementations that may include the above-described embodiments, an end surface between two of the connecting arms is provided with a first stop mating surface; the end surface of the insertion arm is a first limiting surface, and the first limiting matching surface is positioned on one side, away from the first rotating shaft, of the first limiting surface; when the spiral supporting piece is formed by the plurality of arc-shaped supporting plates which are sequentially hinged, the first limiting surface abuts against the first limiting matching surface;
or a second limiting matching surface is arranged on the end surface of the arc-shaped supporting plate, which is provided with the plugging arm; the end surface of the connecting arm is a second limiting surface, and the second limiting matching surface is positioned on one side of the second limiting surface, which is far away from the first rotating shaft; when the spiral supporting piece is formed by the plurality of arc supporting plates which are sequentially hinged, the second limiting surface abuts against the second limiting matching surface.
In some implementations that may include the above-mentioned embodiment, one end of one of the two adjacent arc-shaped support plates is provided with a limiting protrusion, and the limiting protrusion is located on a side of the connection arm or the insertion arm facing the flexible screen; one end of the other arc-shaped supporting plate is provided with a limiting groove, and the limiting groove is positioned on one side, facing the flexible screen, of the insertion arm or the connecting arm; when the wave-shaped supporting piece is formed by the plurality of arc-shaped supporting plates which are sequentially hinged, the limiting bulge abuts against the groove wall of the limiting groove.
In some implementations that may include the above-mentioned embodiment, the flexible screen has a support layer, a side of the support layer facing the arc-shaped support plate is provided with a first sliding groove, and an extending direction of the first sliding groove is parallel to a radial direction of the winding shaft; and a sliding block is arranged at the position, corresponding to the wave crest of the wave-shaped supporting piece, on the arc-shaped supporting plate, and the sliding block is arranged in the first sliding groove in a sliding manner.
In some implementations that may include the above embodiment, two side surfaces of the slider that are parallel to the radial direction of the reel are provided with second sliding grooves, and the extending directions of the two second sliding grooves are parallel to the radial direction of the reel; and the two opposite groove walls of the first sliding groove are respectively provided with a protruding part, and the two protruding parts are respectively positioned in the two second sliding grooves.
In some implementations that may include the above embodiments, the support mechanism further includes a bottom plate, a mounting seat, and a sliding plate, the mounting seat is connected to the bottom plate, and the reel is rotatably connected to the mounting seat by a second rotating shaft; one of one side of the bottom plate, which faces away from the mounting seat, and the first end of the sliding plate is provided with a third sliding chute, and the extending direction of the third sliding chute is vertical to the second rotating shaft; the other one of the side of the bottom plate back to the mounting seat and the first end of the sliding plate is provided with an inserting end, and the inserting end is inserted into the third sliding groove and can slide in the third sliding groove; the second end of the sliding plate is fixedly connected with the other end of the flexible screen; the plurality of arc-shaped supporting plates which are sequentially hinged are positioned between the flexible screen and the bottom plate, and one arc-shaped supporting plate positioned at the other end of the plurality of arc-shaped supporting plates which are sequentially hinged is hinged with the sliding plate.
In some implementations that may include the above-mentioned embodiment, the sliding plate is provided with an extension portion extending toward the mounting base, and the extension portion is hinged to one of the arc-shaped support plates located at the other end among the plurality of arc-shaped support plates hinged in sequence.
In some implementations that may include the above embodiments, the spool is a sector cylinder; the fan-shaped column body is rotatably connected with the mounting seat through the second rotating shaft, and the axis of the fan-shaped column body is superposed with the axis of the second rotating shaft; a first arc-shaped surface is arranged on the arc surface of the fan-shaped column; a plane of fan-shaped cylinder with the contained angle structure that first arc surface formed through the third pivot with lie in one of one end in a plurality of arc backup pads of articulated in proper order the arc backup pad is articulated, the third pivot with the second pivot is parallel.
In some implementations that may include the above embodiments, the sector-shaped cylinder is provided with lightening holes.
The embodiment of the application also provides a mobile terminal which comprises the flexible display device.
The mobile terminal of the embodiment of the application, including the flexible display device, also has the advantages of the flexible display device, and is not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is easy to see that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to the drawings without creative efforts for those skilled in the art.
Fig. 1 is a schematic structural diagram of a flexible display device according to an embodiment of the present application in a rolled state;
FIG. 2 is a schematic view of the flexible display device in FIG. 1 in an unfolded state;
FIG. 3 is a schematic view of a connection structure between two adjacent arc-shaped support plates according to an embodiment of the present application;
FIG. 4 is a schematic diagram of two adjacent curved support plates forming a spiral support in some implementations of embodiments of the present application;
FIG. 5 is a schematic view of two adjacent curved support plates of FIG. 4 forming a wave-shaped support;
FIG. 6 is a schematic diagram of two adjacent curved support plates forming a spiral support in some other implementations of embodiments of the present application;
FIG. 7 is a schematic view of two adjacent curved support plates of FIG. 6 forming a wave-shaped support;
fig. 8 is a schematic sectional view at a-a in fig. 2.
Description of reference numerals:
10. a flexible screen;
110. a support layer; 111. a first chute;
112. a projection;
20. a support mechanism;
210. a reel; 211. a second rotating shaft;
212 lightening holes; 213. a first arc-shaped surface;
214. a third rotating shaft; 220. an arc-shaped support plate;
221. a connecting arm; 222. a first limit matching surface;
223. a second limiting surface; 224. a limiting bulge;
225. a plugging arm; 226. a first limiting surface;
227. a second limit matching surface; 228. a limiting groove;
229. a slider; 230. a second chute;
231. a second arcuate surface; 240. a first rotating shaft;
250. a base plate; 251. a third chute;
260. a mounting seat; 270. a sliding plate;
271. an extension portion; 272. and (7) inserting the terminals.
Detailed Description
As described in the background art, in the flexible display device in the related art, when the flexible screen is curled, the inorganic layer of the flexible screen is easily broken or the film layers in the flexible screen are easily separated from each other. The inventor finds that the technical problem is caused by that when the flexible screen is curled to the reel, the curling radius of the flexible screen is too small, that is, the curling curvature of the flexible screen is too large, so that the bending stress of the flexible screen is too large, and the inorganic layer of the flexible screen is broken or the film layers in the flexible screen are separated from each other, thereby affecting the display effect of the flexible display device.
To above-mentioned technical problem, the flexible display device of this application embodiment, be provided with supporting mechanism, supporting mechanism includes the spool and a plurality of arc backup pads of articulated in proper order, when flexible screen curls around the spool, a plurality of arc backup pads of articulated in proper order form the spiral support piece who encircles the spool, spiral support piece supports flexible screen, make the radius of curling at the flexible in-process flexible screen of curling crescent, thereby reduce the curvature of curling of flexible screen, reduce the bending stress of flexible screen, avoid causing inorganic layer production fracture and/or the rete alternate segregation in the flexible screen of flexible screen, and then guarantee flexible display device's display effect.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In general, terms should be understood at least in part by their use in context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in the singular or may be used to describe a combination of features, structures, or characteristics in the plural, depending, at least in part, on the context. Similarly, terms such as "a" or "the" may also be understood to convey a singular use or to convey a plural use, depending at least in part on the context.
It should be readily understood that "on … …", "above … …" and "above … …" in this disclosure should be interpreted in its broadest sense such that "on … …" means not only "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above … …" or "above … …" includes not only the meaning of "above something" or "above" but also includes the meaning of "above something" or "above" with no intervening features or layers therebetween (i.e., directly on something).
Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. 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 as well.
Referring to fig. 1, an embodiment of the present application provides a flexible display device, which includes aflexible screen 10 and a supportingmechanism 20, where theflexible screen 10 is disposed on the supportingmechanism 20, and the supportingmechanism 20 supports theflexible screen 10. Theflexible screen 10 is used for displaying images, and theflexible screen 10 may be, for example, a flexible Organic Light Emitting Diode (OLED) display screen. Theflexible screen 10 may also be other flexible display screens capable of displaying images.
Thesupport mechanism 20 includes areel 210, and one end of theflexible screen 10 is fixedly connected to thereel 210, for example, one end of theflexible screen 10 may be adhered to thereel 210. The flexible display device has a rolled state and an unfolded state. When the flexible display device is in a rolled state, thereel 210 rotates, and thereel 210 drives thereel 210 to rotate, so that theflexible screen 10 is rolled onto thereel 210; when the flexible display device is in the unfolded state, thereel 210 rotates in reverse, and thereel 210 drives thereel 210 to rotate in reverse, so that theflexible screen 10 wound around thereel 210 is unfolded, and the display picture of the flexible display device is enlarged.
Illustratively, the supportingmechanism 20 may include abase plate 250 and a mountingseat 260, the mountingseat 260 is connected to thebase plate 250, and the windingshaft 210 may be rotatably connected to the mountingseat 260 by a secondrotating shaft 211.
Illustratively, the mountingblock 260 may include two opposing and spaced apart bearing blocks (not shown in the drawings), both mounted on thebase plate 250, each bearing block having a bearing disposed at a top end thereof, the axes of the bearings in the two bearing blocks being collinear. Two ends of the secondrotating shaft 210 are respectively inserted into the bearings in the two bearing seats, so that the secondrotating shaft 210 can rotate around the axis of the secondrotating shaft 210 relative to the two bearing seats.
Thereel 210 can be connected to thesecond shaft 210, and when thesecond shaft 210 rotates, thereel 210 can be driven to rotate. The windingshaft 210 can also be located between two bearing seats, and when the secondrotating shaft 210 rotates, the windingshaft 210 can be driven to rotate between the two bearing seats.
Illustratively, the flexible display device may further include a driving mechanism (not shown in the drawings), which is connected to thesecond shaft 210 to drive thesecond shaft 210 to rotate. The driving mechanism may be a motor or the like.
Thespool 210 may be a cylinder. Exemplarily, referring to fig. 1, thescroll 210 may also be a sector cylinder to reduce the weight of thescroll 210 and facilitate the rotation of thescroll 210, thereby reducing the power consumption of the flexible display device. For example, the axial center of the sector-shaped cylinder may coincide with the axial line of the secondrotating shaft 210, and the sector-shaped cylinder is connected to the secondrotating shaft 210, and the sector-shaped cylinder is rotatably connected to the mountingbase 260 through the secondrotating shaft 210.
Referring to fig. 1, the sector column may further include lighteningholes 212 to further lighten the weight of thescroll 210, thereby reducing power consumption of the flexible display device.
The arc surface of the sector-shaped cylinder may further be provided with afirst arc surface 213, and thefirst arc surface 213 is used for supporting theflexible screen 10 when the flexible display device is in a rolled state. Illustratively, one end of theflexible screen 10 may be adhered to the first arc-shapedface 213.
Illustratively, referring to fig. 1, thesupport mechanism 20 further includes a plurality of arc-shapedsupport plates 220 sequentially hinged, and one arc-shapedsupport plate 220 located at one end of the plurality of arc-shapedsupport plates 220 sequentially hinged is hinged to thespool 210. For example, an angle structure formed by a plane of the sector cylinder and the arc surface is hinged to one of thearc support plates 220 located at one end of the plurality ofarc support plates 220 through the thirdrotating shaft 214, and the thirdrotating shaft 214 is parallel to the secondrotating shaft 211. The plurality of arc-shapedsupport plates 220, which are hinged in turn, are configured to form a helical support around theroll 210 when theflexible screen 10 is rolled around theroll 210.
Referring to fig. 1, when the flexible display device is switched from the unfolded state to the rolled state, thereel 210 rotates in the M direction. Because one arc-shaped supportingplate 220 located at one end of the plurality of arc-shaped supportingplates 220 which are sequentially hinged is hinged with thescroll 210, thescroll 210 can drive the plurality of arc-shaped supportingplates 220 to sequentially rotate when rotating towards the M direction. The plurality of arc-shapedsupport plates 220, which are hinged in sequence, form a spiral-shaped support around the windingshaft 210. Illustratively, each of the arc-shapedsupport plates 220 has a second arc-shapedface 231, and when theflexible screen 10 is rolled around thescroll 210, the first arc-shapedface 213 of thescroll 210 and the second arc-shapedface 231 of the arc-shapedsupport plate 220 hinged thereto, and the second arc-shapedfaces 231 of the other arc-shapedsupport plates 220 form a spiral support face. Partflexible screen 10 covers on this spiral holding surface, plays the effect of support toflexible screen 10 for the radius of curling offlexible screen 10 increases gradually at the in-process that curls, thereby reduces the curvature of curling offlexible screen 10, reduces the bending stress offlexible screen 10, avoids causing the inorganic layer offlexible screen 10 to produce fracture or the rete alternate segregation in theflexible screen 10, and then guarantees flexible display device's display effect.
Referring to fig. 2, the plurality ofcurved support plates 220, which are sequentially hinged, are further configured such that the plurality ofcurved support plates 220, which are sequentially hinged, form a wavy support having respective peaks that are coplanar when theflexible screen 10 is unfolded.
Referring to fig. 2, when the flexible display device is switched from a rolled state to an unfolded state, theroll 210 rotates in a reverse direction, that is, theroll 210 rotates in the N direction, theroll 210 pushes the plurality ofarc support plates 220 to be sequentially unfolded when rotating in the N direction, the plurality ofarc support plates 220 hinged in sequence form a wave-shaped support, peaks of the wave-shaped support are coplanar, and the peaks contact theflexible screen 10 to support the unfoldedflexible screen 10, so as to prevent theflexible screen 10 from collapsing, thereby ensuring a display effect of the flexible display device.
Exemplarily, thesupport mechanism 20 may further include a slidingplate 270, and a side of thebottom plate 250 facing away from the mountingseat 260 may be provided with a third slidinggroove 251, and an extending direction of the third slidinggroove 251 is perpendicular to the secondrotating shaft 211. The first end of the slidingplate 270 is provided with aplug end 272, and theplug end 272 is slidably disposed in the third slidinggroove 251 and can slide in the third slidinggroove 251. The second end of the slidingplate 270 is fixedly connected to the other end of theflexible screen 10. A plurality of arc-shapedsupport plates 220 are positioned between theflexible screen 10 and thebase plate 250, and one arc-shapedsupport plate 220 positioned at the other end among the plurality of arc-shapedsupport plates 220 is hinged to the slidingplate 270.
When the flexible display device is switched from the unfolded state to the rolled state, referring to fig. 1, theinsertion end 272 of the slidingplate 270 moves in the third slidinggroove 251 toward the windingshaft 210, i.e., in the P direction shown in fig. 1, and the slidingplate 270 pushes the plurality of arc-shaped supportingplates 220 to move toward the windingshaft 210, so that the plurality of arc-shaped supportingplates 220 form a spiral support with the windingshaft 210. When the flexible display device is switched from the rolled state to the unrolled state, referring to fig. 2, theinsertion end 272 of the slidingplate 270 moves in the third slidinggroove 251 in a direction away from the windingshaft 210, i.e., in the direction Q shown in fig. 2, and the slidingplate 270 pulls the plurality of arc-shaped supportingplates 220 to move away from the windingshaft 210, so that the plurality of arc-shaped supportingplates 220 and the windingshaft 210 form a wave-shaped support.
It is understood that the first end of the slidingplate 270 may be provided with a third sliding slot, and the extending direction of the third slidingslot 251 is perpendicular to the secondrotating shaft 211. Thebottom plate 250 is provided with a plugging end, which is slidably disposed in the third sliding slot and can slide in the third sliding slot.
Illustratively, the slidingplate 270 is provided with anextension 271 extending toward the mountingbase 260, theextension 271 is hinged with one of the plurality of arc-shapedsupport plates 220 located at the other end, and the slidingplate 270 applies a pushing force and a pulling force to the arc-shapedsupport plate 220 through theextension 271.
The plurality of arc-shapedsupport plates 220 are hinged in sequence. Illustratively, referring to fig. 3, one end of one arc-shapedsupport plate 220 of every two adjacent arc-shapedsupport plates 220 may be provided with two opposite connectingarms 221, and each connectingarm 221 is provided with a first through hole (not shown in the drawings) having an axis parallel to the axis of the windingshaft 210. One end of the other arc-shapedsupport plate 220 is provided with aninsertion arm 225, theinsertion arm 225 is inserted between the twoconnection arms 221, and a second through hole (not shown in the drawing) opposite to the first through hole is formed in theinsertion arm 225. The supporting mechanism further comprises a firstrotating shaft 240, the firstrotating shaft 240 is arranged in the second through hole and the first through hole in a penetrating manner, so that the connectingarm 221 and the insertingarm 225 are hinged through the firstrotating shaft 240, and therefore two adjacent arc-shaped supportingplates 220 are hinged.
In some implementations of embodiments of the present application, referring to fig. 4, the end surface between two connectingarms 221 is provided with a firststop mating surface 222. The end surface of theinsertion arm 225 is a first limitingsurface 226, and the first limitingengagement surface 222 is located on a side of the first limitingsurface 226 away from thefirst rotation axis 240. When the flexible display device is in a curled state, and the plurality of arc-shapedsupport plates 220 sequentially hinged form a spiral support, the first limitingsurface 226 abuts against the first limitingmatching surface 222 to limit two adjacent arc-shapedsupport plates 220 in the curled state, so that the plurality of arc-shapedsupport plates 220 can form the spiral support with thescroll 210.
Referring to fig. 5, when the flexible display device is in the flat state, the first position-limitingengagement surface 222 and the first position-limitingsurface 226 of two adjacent arc-shapedsupport plates 220 are separated from each other, so as to release the position limitation of two adjacent arc-shapedsupport plates 220 in the rolled state.
Illustratively, referring to fig. 5, one end of one of the two adjacent arc-shapedsupport plates 220 may be provided with a limitingprotrusion 224, and the limitingprotrusion 224 is located at a side of the connectingarm 221 facing theflexible screen 10. One end of the other arc-shapedsupport plate 220 is provided with astopper groove 228, and thestopper groove 228 is located at a side of theinsertion arm 225 facing theflexible screen 10. When the flexible display device is in a flat state and the plurality of arc-shapedsupport plates 220 sequentially hinged form the wave-shaped support member, the limitingprotrusion 224 abuts against the groove wall of the limitinggroove 228 to limit the adjacent two arc-shapedsupport plates 220 in the flat state, so that the plurality of arc-shapedsupport plates 220 and thescroll 210 can form the wave-shaped support member.
It is understood that one end of one of the arc-shapedsupport plates 220 may be provided with astopper projection 224, and thestopper projection 224 may be located at a side of thesocket arm 225 facing theflexible screen 10. One end of the other arc-shapedsupport plate 220 is provided with a retaininggroove 228, and the retaininggroove 228 is located at the side of the connectingarm 221 facing theflexible screen 10.
In some other implementations of embodiments of the present application, referring to fig. 6, thearcuate support plate 220 has a secondstop mating surface 227 disposed on an end surface of theinsertion arm 225. The end surface of the connectingarm 221 is a second limitingsurface 223, and the second limitingengagement surface 227 is located on a side of the second limitingsurface 223 departing from the firstrotating shaft 240. When the flexible display device is in a curling state, and the plurality of arc-shapedsupport plates 220 hinged in sequence form the spiral support, thesecond limit surface 223 abuts against the secondlimit matching surface 227 so as to limit the adjacent two arc-shapedsupport plates 220 in the curling state, thereby ensuring that the plurality of arc-shapedsupport plates 220 can form the spiral support with thescroll 210.
Referring to fig. 7, when the flexible display device is in the flat state, the second position-limitingengagement surface 227 and the second position-limitingsurface 223 of two adjacent arc-shapedsupport plates 220 are separated from each other to release the position limitation of two adjacent arc-shapedsupport plates 220 in the rolled state.
Referring to fig. 8, theflexible screen 10 has asupport layer 110, and a side of thesupport layer 110 facing the arc-shapedsupport plate 220 may be provided with a first slidinggroove 111, and an extending direction of the first slidinggroove 111 is parallel to a radial direction of the windingshaft 210. The slidingblock 229 is arranged on the arc-shaped supportingplate 220 at a position corresponding to the wave crest of the wave-shaped supporting piece, the slidingblock 229 is arranged in the first slidinggroove 111 in a sliding manner, and the slidingblock 229 on the arc-shaped supportingplate 220 can support theflexible screen 10 to prevent theflexible screen 10 from collapsing when in an unfolding state, so that the display effect of the flexible display device is ensured.
For example, the second slidinggrooves 230 are disposed on two side surfaces of the slidingblock 229, which are parallel to the radial direction of the windingshaft 210, and the extending directions of the two second slidinggrooves 230 are parallel to the radial direction of the windingshaft 210. The two opposite groove walls of the first slidinggroove 111 are respectively provided with a protrudingportion 112, and the two protrudingportions 112 are respectively located in the two second slidinggrooves 230. Theprotrusion 112 can limit the slidingblock 229, prevent the slidingblock 229 from being separated from the first slidinggroove 111, and ensure the supporting function of the slidingblock 229 on theflexible screen 10.
The embodiment of the application also provides a mobile terminal which comprises the flexible display device.
The mobile terminal of the embodiment of the application, including the flexible display device, also has the advantages of the flexible display device, and is not described herein again.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A flexible display device is characterized by comprising a flexible screen and a supporting mechanism, wherein the supporting mechanism comprises a scroll and a plurality of arc-shaped supporting plates which are sequentially hinged, and one arc-shaped supporting plate at one end of the plurality of arc-shaped supporting plates which are sequentially hinged is hinged with the scroll; one end of the flexible screen is fixedly connected with the reel; the plurality of arc-shaped support plates hinged in sequence are configured to: forming a helical support around the roller when the flexible screen is rolled around the roller; when the flexible screen is unfolded, a wave-shaped support is formed, and the wave crests of the wave-shaped support are coplanar.
2. The flexible display device according to claim 1, wherein one end of each of two adjacent arc-shaped support plates is provided with two opposite connecting arms, each connecting arm is provided with a first through hole, and an axis of the first through hole is parallel to an axis of the winding shaft; one end of the other arc-shaped supporting plate is provided with an inserting arm, the inserting arm is inserted between the two connecting arms, and a second through hole opposite to the first through hole is formed in the inserting arm; the supporting mechanism further comprises a first rotating shaft, and the first rotating shaft is arranged in the second through hole and the first through hole in a penetrating mode.
3. The flexible display device according to claim 2, wherein an end surface between two of the connecting arms is provided with a first stop mating surface; the end surface of the insertion arm is a first limiting surface, and the first limiting matching surface is positioned on one side, away from the first rotating shaft, of the first limiting surface; when the spiral supporting piece is formed by the plurality of arc-shaped supporting plates which are sequentially hinged, the first limiting surface abuts against the first limiting matching surface;
or a second limiting matching surface is arranged on the end surface of the arc-shaped supporting plate, which is provided with the plugging arm; the end surface of the connecting arm is a second limiting surface, and the second limiting matching surface is positioned on one side of the second limiting surface, which is far away from the first rotating shaft; when the spiral supporting piece is formed by the plurality of arc supporting plates which are sequentially hinged, the second limiting surface abuts against the second limiting matching surface.
4. The flexible display device according to claim 2, wherein one end of one of the two adjacent arc-shaped support plates is provided with a limiting protrusion, and the limiting protrusion is located on one side of the connecting arm or the inserting arm facing the flexible screen; one end of the other arc-shaped supporting plate is provided with a limiting groove, and the limiting groove is positioned on one side, facing the flexible screen, of the insertion arm or the connecting arm; when the wave-shaped supporting piece is formed by the plurality of arc-shaped supporting plates which are sequentially hinged, the limiting bulge abuts against the groove wall of the limiting groove.
5. The flexible display device according to any one of claims 1 to 4, wherein the flexible screen has a support layer, a side of the support layer facing the arc-shaped support plate is provided with a first sliding groove, and an extending direction of the first sliding groove is parallel to a radial direction of the winding shaft; and a sliding block is arranged at the position, corresponding to the wave crest of the wave-shaped supporting piece, on the arc-shaped supporting plate, and the sliding block is arranged in the first sliding groove in a sliding manner.
6. The flexible display device according to claim 5, wherein the slider is provided with second sliding grooves on two side surfaces parallel to the radial direction of the reel, and the extending directions of the two second sliding grooves are parallel to the radial direction of the reel;
and the two opposite groove walls of the first sliding groove are respectively provided with a protruding part, and the two protruding parts are respectively positioned in the two second sliding grooves.
7. The flexible display device according to any one of claims 1 to 4, wherein the support mechanism further comprises a bottom plate, a mounting base and a sliding plate, the mounting base is connected to the bottom plate, and the reel is rotatably connected to the mounting base through a second rotating shaft; one of one side of the bottom plate, which faces away from the mounting seat, and the first end of the sliding plate is provided with a third sliding chute, and the extending direction of the third sliding chute is vertical to the second rotating shaft; the other one of the side of the bottom plate back to the mounting seat and the first end of the sliding plate is provided with an inserting end, and the inserting end is inserted into the third sliding groove and can slide in the third sliding groove; the second end of the sliding plate is fixedly connected with the other end of the flexible screen; the plurality of arc-shaped supporting plates which are sequentially hinged are positioned between the flexible screen and the bottom plate, and one arc-shaped supporting plate positioned at the other end of the plurality of arc-shaped supporting plates which are sequentially hinged is hinged with the sliding plate.
8. The flexible display device according to claim 7, wherein the sliding plate is provided with an extension portion extending toward the mounting base, and the extension portion is hinged to one of the arc-shaped support plates located at the other end among the plurality of arc-shaped support plates hinged in sequence.
9. The flexible display device of claim 7, wherein the reel is a sector cylinder; the fan-shaped column body is rotatably connected with the mounting seat through the second rotating shaft, and the axis of the fan-shaped column body is superposed with the axis of the second rotating shaft; a first arc-shaped surface is arranged on the arc surface of the fan-shaped column; an included angle structure formed by one plane of the sector cylinder and the first arc surface is hinged with one arc supporting plate at one end of the plurality of arc supporting plates which are sequentially hinged through a third rotating shaft, and the third rotating shaft is parallel to the second rotating shaft;
preferably, the sector-shaped cylinder is provided with lightening holes.
10. A mobile terminal, characterized in that it comprises a flexible display device according to any of claims 1-9.
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| CN202111659633.XACN114220354B (en) | 2021-12-30 | 2021-12-30 | Flexible display device and mobile terminal |
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| CN202111659633.XACN114220354B (en) | 2021-12-30 | 2021-12-30 | Flexible display device and mobile terminal |
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| CN115830988A (en)* | 2022-10-25 | 2023-03-21 | 合肥维信诺科技有限公司 | Support plate and display panel |
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