CN110570769B - Folding screen and display terminal - Google Patents
Folding screen and display terminal Download PDFInfo
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- CN110570769B CN110570769B CN201910865682.5A CN201910865682A CN110570769B CN 110570769 B CN110570769 B CN 110570769B CN 201910865682 A CN201910865682 A CN 201910865682A CN 110570769 B CN110570769 B CN 110570769B
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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
The invention provides a folding screen and a display terminal, wherein a bending area is not pulled when the folding screen is folded, and the folding screen is not arched when the folding screen is flattened. The folding screen comprises a flexible screen, a screen body supporting piece driving the flexible screen to fold or unfold and a magnetic element. The magnetic attraction element comprises a first magnetic attraction element and a second magnetic attraction element matched with the first magnetic attraction element, the first magnetic attraction element is fixedly connected with the rotating shaft, and the second magnetic attraction element is fixedly connected with the bending area; the rotation axis in the screen body support piece is used for, when flexible screen exhibition is ordinary times, the first magnetism of drive is inhaled the component and is inhaled the component looks with the second magnetism to make regional and rotation axis of buckling adsorb the laminating.
Description
Technical Field
The invention relates to the technical field of display products, in particular to a folding screen and a display terminal.
Background
With the development of flexible display technology, flexible screens (i.e., flexible display screens) are increasingly applied to terminal devices. In a terminal device, a flexible screen and a flexible screen support structure are generally combined, and the flexible screen is folded and unfolded by using the flexible screen support structure, so as to form a folded screen in the terminal device. In the prior art, the folding screen can be divided into two types according to whether the bending area of the flexible screen is fixed with the flexible screen supporting structure or not, wherein the first type is that the bending area is fixed with the flexible screen supporting structure, and the second type is that the bending area is not fixed with the flexible screen supporting structure. For the first folding screen, when the folding screen is folded, the bending area of the flexible screen is pulled by the flexible screen supporting structure, so that the flexible screen is easily damaged; for the second type of folding screen, when the folding screen is unfolded, the bending area of the flexible screen is easy to arch, which causes the surface of the flexible screen to be uneven, and affects the user experience.
Disclosure of Invention
In view of this, embodiments of the present invention provide a foldable screen and a display terminal, so as to solve the problem that a flexible screen support structure in the prior art cannot meet two requirements of folding without pulling and flattening for providing support at the same time.
The invention provides a folding screen, which comprises a flexible screen and a screen body supporting piece superposed with the flexible screen, wherein the screen body supporting piece comprises a first shell, a second shell and a rotating shaft which is respectively and rotatably connected with the first shell and the second shell; the folding screen still includes: the magnetic attraction element comprises a first magnetic attraction element and a second magnetic attraction element matched with the first magnetic attraction element, the first magnetic attraction element is fixedly connected with the rotating shaft, and the second magnetic attraction element is fixedly connected with the bending area; the rotation axis is used for, when flexible screen exhibition is ordinary times, the first magnetic of drive is inhaled the component and is inhaled the component looks with the second magnetism to make regional and rotation axis of buckling adsorb the laminating.
In one embodiment, the rotation shaft includes a first lever, a second lever, and a coupling member including a first fixing shaft and a second fixing shaft parallel to each other, the first lever being rotatably coupled to the first fixing shaft at a fulcrum, the second lever being rotatably coupled to the second fixing shaft at the fulcrum, a first end of the first lever being slidably coupled to the first housing, and a first end of the second lever being slidably coupled to the second housing.
In one embodiment, the first magnetically attractive element includes a first magnet secured to the second end of the first lever and a second magnet secured to the second end of the second lever.
In one embodiment, when the flexible screen is unfolded, the connecting line of the two magnetic poles of the first magnet and the two magnetic poles of the second magnet is perpendicular to the display surface of the flexible screen.
In one embodiment, the first magnet and the second magnet have the same polarity facing the poles of the flexible screen when the flexible screen is flat.
In one embodiment, the connecting piece further comprises a curved cover plate, the bending direction of the curved cover plate is opposite to the folding direction of the flexible screen, the curved cover plate comprises a first arc-shaped area, a plane area and a second arc-shaped area which are sequentially connected, a first fixing shaft is fixed at the end part, far away from the plane area, of the first arc-shaped area, a second fixing shaft is fixed at the end part, far away from the plane area, of the second arc-shaped area, and when the flexible screen is unfolded and flat, the surface, facing the folding direction of the flexible screen, of the plane area is flush with the placing surface.
In one embodiment, the first lever and the second lever are F-shaped, the long transverse axis of the F-shaped structure is the second end of the lever, the end of the short transverse axis forms a fulcrum, and the vertical axis is the first end of the lever.
In one embodiment, the rotating shaft includes a plurality of first levers and a plurality of second levers corresponding to the plurality of first levers one to one, and the plurality of first levers and the plurality of second levers are arranged at equal intervals along the first fixing shaft and the second fixing shaft, respectively.
In one embodiment, the second magnetically attractive element is an ultra-thin steel sheet.
A second aspect of the present invention provides a display terminal including the folding screen provided in any of the above embodiments.
According to the folding screen and the display terminal provided by the invention, the bending area of the flexible screen is not fixed with the screen body supporting piece, and when the folding screen is in a folding state, the screen body supporting piece cannot pull the flexible screen. Meanwhile, when the folding screen is in a flattening state, the rotating shaft 13 drives the first magnetic attraction element and the second magnetic attraction element to attract each other, so that the bending area of the flexible screen is attached to the rotating shaft, and the flexible screen is prevented from being arched.
Drawings
Fig. 1 is a schematic structural view of a folding screen according to a first embodiment of the present invention in a folded state.
Fig. 2 is a schematic view of the foldable screen shown in fig. 1 in a flattened state.
Fig. 3 is a schematic structural diagram of a foldable screen according to a second embodiment of the present invention in a flattened state.
Fig. 4 is a schematic structural view of the folding screen shown in fig. 3 in a folded state.
Fig. 5 is a top view of a flexible screen support structure provided in accordance with an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Fig. 1 is a schematic structural view of a folding screen according to a first embodiment of the present invention in a folded state. Fig. 2 is a schematic view of the foldable screen shown in fig. 1 in a flattened state. As can be seen from fig. 1 and 2, the foldable screen 100 includes a flexible screen 20 and a screen support 10 stacked on the flexible screen 20, the screen support 10 includes a first housing 11, a second housing 12, and a rotation shaft rotatably connected to the first housing 11 and the second housing 12, the first housing 11 and the second housing 12 respectively rotate around the rotation shaft to drive the flexible screen 20 to fold or unfold, and a bending area Q of the flexible screen 201And the rotation axis 13 of the screen support 10 is not fixed.
Specifically, the screen support 10 includes a first housing 11, a second housing 12, and a rotation shaft 13 rotatably connected to the first housing 11 and the second housing, respectively, and one side surfaces of the first housing 11 and the second housing 12 cooperate with each other to form a placement surface S for placing the flexible screen 201The flexible screen 20 is placed on the placing surface S1The above. The flexible screen 20 comprises a bending region Q1And in the bending region Q1On both sides of the bending line2Non-bent region Q2Non-display surface and placing surface S1Fixedly connected by adhesive bonding, bent region Q1The non-display surface of (2) is a free surface, i.e. a bending region Q1Is not fixed to the rotation shaft 13.
As shown in fig. 1 and fig. 2, the foldable screen 100 further includes a magnetic element 30, the magnetic element 30 includes a first magnetic element 31 and a second magnetic element 32 used in cooperation therewith, the first magnetic element 31 is fixedly connected to the rotating shaft 13, and the second magnetic element 32 is connected to the bending region Q of the flexible screen 201And (4) fixedly connecting. The rotation shaft 13 is used for driving the first housing 11 and the second housing 12 to rotate around the rotation shaft 13When the flexible screen 20 is flattened, the first magnetic attraction element 31 and the second magnetic attraction element 32 are driven to attract each other, so that the bending area Q of the flexible screen 20 is formed1And is adhered to the rotary shaft 13 by suction.
The first and second magnetically attracting members 31 and 32 mentioned herein refer to members that can attract each other by the action of magnetic force, such as magnets and magnets, magnets and nonmagnetic metals, electromagnets and nonmagnetic metals, and electromagnets.
Since the magnet is a magnetic element and the electromagnet is a magnetic element when energized, the driving method of the magnet and the electromagnet by the rotating shaft is different. For example, when the first magnetic attraction element 31 is a magnet and the second magnetic attraction element 32 is a metal, the driving of the first magnetic attraction element 31 and the second magnetic attraction element 32 by the rotation shaft 13 can be implemented as: the rotation shaft 13 drives the first magnetic element 31 to move, so that the magnetic pole direction of the first magnetic element 31 changes, the opposite magnetic poles of the first magnetic element 31 and the second magnetic element 32 are opposite, and the bending region Q of the flexible screen 20 is driven by the attraction of the first magnetic element 31 and the second magnetic element 321Attached to the rotating shaft 13. For another example, when the first magnetic attraction element 31 is an electromagnet and the second magnetic attraction element 32 is a metal, the driving of the first magnetic attraction element 31 and the second magnetic attraction element 32 by the rotating shaft 13 can be implemented as follows: the rotating shaft 13 triggers the power switch to make the first magnetic attraction element 31 have magnetism, so that the first magnetic attraction element 31 attracts the second magnetic attraction element 32 to make the bending area Q of the flexible screen 201Attached to the rotating shaft 13.
According to the folding screen 100 provided in the present embodiment, the bending region Q of the flexible screen 201Not fixed to the axis of rotation 13, i.e. the bending region Q1The non-display surface of (2) is a free surface. In this case, when the folding screen 100 is in the folded state, as shown in fig. 1, the screen support member 10 does not pull the flexible screen 20. Meanwhile, when the foldable screen 100 is in the flat state, as shown in fig. 2, the rotating shaft 13 drives the first magnetic attraction element 31 and the second magnetic attraction element 32 to attract each other, so as to attract the bending region Q of the flexible screen 201And the rotating shaft 13, to avoid the flexible screen 20 from arching.
Fig. 3 is a schematic structural diagram of a foldable screen according to a second embodiment of the present invention in a flattened state. Fig. 4 is a schematic structural view of the folding screen shown in fig. 3 in a folded state. Referring first to fig. 3, the rotation shaft 23 in the folding screen 200 includes a first lever 231, a second lever 232, and a link 233. The connecting member 233 includes a first fixed shaft 2331 and a second fixed shaft 2332 which are parallel to each other, the first lever 231 is rotatably coupled to the first fixed shaft 2331 at a fulcrum, the second lever 232 is rotatably coupled to the second fixed shaft 2332 at a fulcrum, a first end of the first lever 231 is slidably coupled to the first housing 21, and a first end of the second lever 232 is slidably coupled to the second housing 22.
The foldable screen 200 provided by this embodiment utilizes the sequential connection of the first lever 231, the connecting member 233 and the second lever 232 to realize the rotational connection of the first casing 21 and the second casing 22, and the first casing 21 and the second casing 22 are driven to rotate by the rotation of the first lever 231 and the second lever 232, so as to realize the flattening and folding of the flexible screen 20. Meanwhile, by providing the first lever 231 and the first housing 21, and the second lever 232 and the second housing 22 in sliding connection, the bending region Q of the flexible screen 20 can be formed when the flexible screen 20 is in the folded state1A folding space is formed between the flexible screen and the rotating shaft 23 to avoid the rotating shaft 23 from bending the bending area Q of the flexible screen 201Resulting in a squeeze.
In one embodiment, referring to fig. 4, the first lever 231 includes a first stopper through hole 2311 extending in a direction perpendicular to the first fixing shaft 231, the first housing 21 includes a first protrusion 211 perpendicular to the placing surface, and the first protrusion 211 passes through the first stopper through hole 2311 to be slidable along the first stopper through hole 2311. The second lever 232 includes a second limiting through hole 2321 extending in a direction perpendicular to the second fixing axis 2332, and the second housing 22 includes a second protrusion 221 perpendicular to the placing surface, the second protrusion 221 passes through the second limiting through hole 2321 and can slide along the second limiting through hole 2321.
In the foldable screen 200 provided in this embodiment, when the first lever 231 and the second lever 232 rotate around the first fixing shaft 2331 and the second fixing shaft 2332, respectively, to drive the flexible screen 20 to transition from the flat state to the folded state, the first housing 21 is far away along the first limiting through hole 2311The second housing 22 slides along the second limiting through hole 2321 in a direction away from the first housing 21, so that the connecting member 233 is driven to move a small distance in a direction away from the flexible screen 20, and the bending area Q of the flexible screen 20 is formed1And the rotating shaft 23, thereby avoiding the rotating shaft 23 from facing the bending region Q1Resulting in a squeeze.
With reference to fig. 4, the first magnetic element 31 includes a first magnet 311 and a second magnet 312, the first magnet 311 is fixed to the second end of the first lever 231, and the second magnet 312 is fixed to the second end of the second lever 232. Compared with an electromagnet, the magnet does not need additional electric energy, and cost is saved.
In one embodiment, when the flexible screen 20 is flat, the connection line between the two magnetic poles of the first magnet 311 and the two magnetic poles of the second magnet 312 is perpendicular to the display surface of the flexible screen 20. The magnetic field of the magnet has a certain regularity, i.e. the magnetic field strength is the greatest at both the N-pole and S-pole ends. Therefore, when the magnetic poles of the first magnet 311 and the second magnet 312 are opposite to the flexible screen 20, the magnetic force action on the flexible screen can be maximally generated to bend the bending region Q of the flexible screen 201And the rotary shaft 23.
In one embodiment, the polarity of the magnetic poles of the first magnet 311 and the second magnet 312 towards the flexible screen 20 are the same when the flexible screen is flat. Thus, the magnetic fields of the first magnet 311 and the second magnet 312 can interfere with each other, and the best attraction effect can be obtained for the flexible panel 20.
Referring to fig. 3, the connecting member 233 further includes a curved cover plate 2333, a bending direction of the curved cover plate 2333 is opposite to a folding direction of the flexible screen 20, the curved cover plate 2333 includes a first arc region, a plane region and a second arc region connected in sequence, a first fixing shaft 2331 is fixed to an end portion of the first arc region far from the plane region, a second fixing shaft 2332 is fixed to an end portion of the second arc region far from the plane region, and when the flexible screen 20 is unfolded and flat, a surface of the plane region facing the folding direction of the flexible screen 20 and a placing surface S1Flush. Thus, when the flexible panel 20 is bent in the bending region Q1The curved cover 2333 may have a bent region Q when fitted to the rotary shaft 231Providing good support and further facilitating the flattening of the flexible screen 20.
In one embodiment, as shown in fig. 3, the connecting member 23 specifically includes an upper cover plate, a lower cover plate, and a left side wall and a right side wall connecting the upper cover plate and the lower cover plate, and the first fixing shaft 2331 and the second fixing shaft 2332 are respectively fixed on the left side wall and the right side wall, in this case, the upper cover plate corresponds to the curved cover plate 2333. The left side wall and the right side wall have mirror-symmetrical structures, and in the direction from the upper cover plate to the lower cover plate, taking the left side wall as an example, the left side wall is divided into a first vertical surface, a horizontal surface and a second vertical surface which are connected in sequence, so that a step structure is formed on the left side wall, and the mesa of the step structure faces the upper cover plate. The first fixing axis 2331 is fixed at the intersection of the first vertical plane and the horizontal plane, i.e., the first fixing axis 2331 is fixed at the inflection point position where the first vertical plane is changed into the horizontal plane. The left side wall includes an opening K in a region corresponding to the first fixing shaft 2331 to expose the first fixing shaft 2331. The first lever 231 is inserted into the opening and is rotatably coupled to the first fixed shaft 2331.
The connection member 23 provided in this embodiment is matched with the first lever 231 and the second lever 232, and when the first housing 21 and the second housing 22 are driven to rotate around the rotation shaft 23 by an external force, that is, the first lever 231 and the second lever 232 rotate around the first fixing shaft 2331 and the second fixing shaft 2332, respectively, so that the flexible screen 20 is turned from the folded state to the unfolded state, the first magnet 311 located at the second end of the first lever 231 and the second magnet 312 located at the second end of the second lever 232 gradually approach the flexible screen 20, respectively, and the magnetic poles of the first magnet 311 and the second magnet 312 change directions, and when the flexible screen 20 is unfolded state, like magnetic poles of the first magnet 311 and the second magnet 312 face the flexible screen 20.
In one embodiment, the first lever 131 and the second lever 132 are in an F-shaped structure, in which the longer horizontal axis is the second end of the lever and is fixedly connected to the first magnetic attraction element 31, the end of the short horizontal axis is rotatably connected to the fixed axis to form a fulcrum, and the vertical axis is the first end of the lever and is slidably connected to the housing. The lever with the F-shaped structure is simple in structure and easy to realize.
In one embodiment, referring to FIG. 4, the second magnetically attractive element 32 is an ultra-thin steel sheet. The ultrathin steel sheet is positioned between the flexible screen 20 and the screen body supporting piece, the opposite surfaces of the ultrathin steel sheet are respectively and fixedly connected with the non-display surface and the placing surface of the flexible screen 20, and the area of the ultrathin steel sheet, which is opposite to the rotating shaft 23, is provided with a free surface, namely the ultrathin steel sheet is not fixed with the rotating shaft 23. The ultra-thin steel sheet can play the supporting role to flexible screen 20 on the one hand, and on the other hand can also inhale the component 32 and inhale the component 31 cooperation with first magnetism as the second to when realizing that flexible screen 20 flattens, with the effect of the regional and rotation axis 23 absorption together of buckling of flexible screen 20.
Fig. 5 is a top view of a flexible screen support structure provided in accordance with an embodiment of the present invention. As shown in fig. 5, the rotation shaft 23 of the flexible screen support structure 300 includes a plurality of first levers 231 and a plurality of second levers 232 corresponding to the plurality of first levers 231 one by one, the plurality of first levers 231 are arranged at equal intervals along the extending direction of the first fixing shaft 2331, the plurality of second levers 232 are arranged at equal intervals along the second fixing shaft 2332, and the plurality of second levers 232 and the plurality of first levers 231 are symmetrical with respect to the bending line of the flexible screen 20.
The invention further provides a display terminal which comprises the folding screen provided by any one of the embodiments.
It should be understood that the terms "first", "second", "third" and "fourth" used in the description of the embodiments of the present invention are only used for clearly illustrating the technical solutions, and are not used for limiting the protection scope of the present invention.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalents and the like within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A folding screen comprises a flexible screen and a screen body supporting piece superposed with the flexible screen, wherein the screen body supporting piece comprises a first shell, a second shell and a rotating shaft which is respectively and rotatably connected with the first shell and the second shell, the first shell and the second shell respectively rotate around the rotating shaft to drive the flexible screen to fold or unfold, and a bending area of the flexible screen and the rotating shaft are not fixed;
it is characterized in that the folding screen further comprises:
the magnetic attraction element comprises a first magnetic attraction element and a second magnetic attraction element matched with the first magnetic attraction element, the first magnetic attraction element is fixedly connected with the rotating shaft, and the second magnetic attraction element is fixedly connected with the bending area;
the rotating shaft is used for driving the first magnetic attraction element and the second magnetic attraction element to attract each other when the flexible screen is unfolded and flat, so that the bending area and the rotating shaft are attached in an adsorption mode; the rotating shaft comprises a first lever, a second lever and a connecting piece, the connecting piece comprises a first fixing shaft and a second fixing shaft which are parallel to each other, the first lever is rotatably connected with the first fixing shaft at a fulcrum, the second lever is rotatably connected with the second fixing shaft at the fulcrum, the first end of the first lever is slidably connected with the first shell, the first end of the second lever is slidably connected with the second shell, the first magnetic attraction element comprises a first magnet and a second magnet, the first magnet is fixed at the second end of the first lever, and the second magnet is fixed at the second end of the second lever.
2. A foldable screen according to claim 1, wherein when the flexible screen is unfolded, a line connecting the two poles of the first magnet and the two poles of the second magnet is perpendicular to the display surface of the flexible screen.
3. A folding screen as claimed in claim 2 wherein the polarity of the poles of the first and second magnets towards the flexible screen is the same when the flexible screen is unfolded.
4. A folding screen according to any of claims 1-3 wherein one side surfaces of the first and second housings cooperate to form a placement surface for placement of the flexible screen; the connecting piece still includes the curved surface apron, the crooked direction of curved surface apron with the folding opposite direction of flexible screen, the curved surface apron is regional including the first arc that connects gradually, plane region and second arc, first fixed axle is fixed keeping away from in the first arc region the regional tip in plane, the second fixed axle is fixed keeping away from in the second arc region the regional tip in plane, when flexible screen exhibition is ordinary time, the regional orientation in plane the folding direction of flexible screen the surface with place the face parallel and level.
5. A folding screen according to claim 4 wherein the first and second levers are of an F configuration with the long transverse axis being the second end of the lever and the end of the short transverse axis forming the fulcrum and the vertical axis being the first end of the lever.
6. A foldable screen according to claim 1, wherein the rotation shaft comprises a plurality of first levers and a plurality of second levers in one-to-one correspondence with the plurality of first levers, the plurality of first levers and the plurality of second levers being arranged at equal intervals along the first fixed shaft and the second fixed shaft, respectively.
7. A folding screen according to claim 1 in which the second magnetically attractive element is an ultra thin steel sheet.
8. A display terminal comprising the folding screen of any one of claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910865682.5A CN110570769B (en) | 2019-09-12 | 2019-09-12 | Folding screen and display terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910865682.5A CN110570769B (en) | 2019-09-12 | 2019-09-12 | Folding screen and display terminal |
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| CN110570769A CN110570769A (en) | 2019-12-13 |
| CN110570769B true CN110570769B (en) | 2022-01-25 |
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| CN201910865682.5A Active CN110570769B (en) | 2019-09-12 | 2019-09-12 | Folding screen and display terminal |
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| CN111105712A (en) * | 2019-12-19 | 2020-05-05 | 武汉华星光电半导体显示技术有限公司 | Display device |
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| CN111182102B (en) * | 2020-01-03 | 2022-02-15 | 京东方科技集团股份有限公司 | Foldable display device and foldable display terminal |
| CN111223405B (en) * | 2020-01-08 | 2022-01-25 | 云谷（固安）科技有限公司 | Display device and protection method thereof |
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| CN111599276B (en) * | 2020-05-29 | 2022-08-12 | 云谷（固安）科技有限公司 | Folding screen and display device |
| CN111785160B (en) * | 2020-06-30 | 2022-08-16 | 维沃移动通信有限公司 | Folding electronic device |
| CN112201156A (en) * | 2020-08-31 | 2021-01-08 | 上海天马微电子有限公司 | Display module and display device |
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| CN115033054A (en) * | 2021-03-05 | 2022-09-09 | 北京小米移动软件有限公司 | Electronic device |
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| CN108980197A (en) * | 2018-07-09 | 2018-12-11 | 维沃移动通信有限公司 | A kind of flexible screen support construction and terminal device |
| CN109661131A (en) * | 2018-11-06 | 2019-04-19 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN109495621A (en) * | 2018-12-17 | 2019-03-19 | Oppo广东移动通信有限公司 | A kind of fold mechanism and mobile terminal |
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