CN107181838B - Flexible display device and mobile terminal with same - Google Patents
Flexible display device and mobile terminal with same Download PDFInfo
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- CN107181838B CN107181838B CN201710384894.2A CN201710384894A CN107181838B CN 107181838 B CN107181838 B CN 107181838B CN 201710384894 A CN201710384894 A CN 201710384894A CN 107181838 B CN107181838 B CN 107181838B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
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Abstract
The invention discloses a flexible display device, which comprises a flexible screen, a first shell and a second shell, wherein at least part of the flexible screen can be bent; the elastic metal sheet is connected between the first shell and the second shell. When the flexible display device provided by the invention is applied, the excellent elasticity of the elastic metal sheet is utilized, and when the display device needs to be bent for displaying, the elastic metal sheet connected with the first shell and the second shell is driven to generate elastic deformation by bending the first shell and the second shell towards the middle, so that the flexible screen is correspondingly supported to flexibly deform. When the flexible screen is required to be restored to the initial state, the first shell and the second shell are pulled outwards, the elastic metal sheet can rebound to the initial state, and then the flexible screen is driven to be restored to the initial state. The flexible screen has the advantages of simple and reliable structure, low production cost and simple and convenient flexible screen return operation. The invention also discloses a mobile terminal comprising the flexible display device.
Description
Technical Field
The invention relates to the technical field of display devices, in particular to a flexible display device and a mobile terminal comprising the flexible display device.
Background
With the rapid development of science and technology in recent years, the practical experience of the mobile phone is greatly impacted, and the change from the early straight board to the touch screen operation and from the early function machine to the current intelligent machine, no matter the appearance or the function, is all the change of the coverage of the sky. However, cell phone screens have long been limited to rigid glass screens.
With the continuous promotion of flexible screens in recent years, how to realize the matching bending on the hardware structure of the mobile phone is a great technical problem. The current common structure is a chain-hinged structure, i.e. a flexible screen is supported by a plurality of support joint plates connected in a chain shape.
The hardware structure determines the bending effect of the mobile phone, but the hinge structure is relatively complex, the product stability is poor, the cost is high, the production yield is low, and the mass production is not facilitated.
In summary, how to effectively solve the problems of complex supporting structure, poor product stability, high cost and the like of the flexible screen is a problem that needs to be solved urgently by those skilled in the art at present.
Disclosure of Invention
In view of the foregoing, a first object of the present invention is to provide a flexible display device, which has a structural design that can effectively solve the problems of complicated flexible screen support structure, poor product stability and high cost, and a second object of the present invention is to provide a mobile terminal including the flexible display device.
In order to achieve the first object, the invention provides the following technical scheme:
a flexible display device includes a flexible screen that is at least partially bendable, a first housing and a second housing that support the flexible screen; the elastic metal sheet is connected between the first shell and the second shell.
Preferably, in the flexible display device, the elastic metal sheet has a concave groove recessed toward one side of the flexible screen to limit a maximum bending angle of the elastic metal sheet.
Preferably, in the flexible display device, a minimum distance between the elastic metal sheet and the flexible screen is a preset interval.
Preferably, in the above flexible display device, the groove is a bar-shaped groove, and a length direction of the bar-shaped groove is consistent with a pitch direction of the first housing and the second housing.
Preferably, in the above flexible display device, the width of the groove gradually decreases from the notch to the groove bottom.
Preferably, the flexible display device comprises a plurality of parallel and parallel grooves.
Preferably, in the above flexible display device, the elastic metal sheet is a manganese alloy steel sheet.
Preferably, in the above flexible display device, two ends of the elastic metal sheet are detachably and fixedly connected to the first casing and the second casing, respectively.
Preferably, in the above flexible display device, a flexible buffer pad is disposed between the elastic metal sheet and the flexible screen.
The invention provides a flexible display device which comprises a flexible screen, a first shell, a second shell and an elastic metal sheet. Wherein at least part of the flexible screen is bendable; the first shell and the second shell are used for supporting the flexible screen; the elastic metal sheet is connected between the first housing and the second housing.
When the flexible display device provided by the invention is applied, the excellent elasticity of the elastic metal sheet is utilized, when the display device needs to be bent for displaying, the elastic metal sheet connected with the first shell and the second shell is driven to generate elastic deformation by bending the first shell and the second shell towards the middle, and the corresponding supporting flexible screen generates deformation, so that the flexible display is realized. When the flexible screen is required to be restored to the initial state, the first shell and the second shell are pulled outwards, the elastic metal sheet can rebound to the initial state, and then the flexible screen is driven to be restored to the initial state. To sum up, realize bending through flexible screen of elasticity sheetmetal cooperation, simple structure is reliable, low in production cost. And the flexible screen is simpler and more convenient to reply and operate due to the characteristic that the elastic metal sheet rebounds quickly, so that the user experience is improved.
To achieve the second object, the present invention also provides a mobile terminal including any one of the flexible display devices described above. Since the flexible display device has the technical effects, a mobile terminal having the flexible display device should also have corresponding technical effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic front structural diagram of a flexible display device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the reverse structure of FIG. 1;
FIG. 3 is a schematic view of the flexible display device shown in FIG. 1 in a bent state;
FIG. 4 is a sectional view of a manganese alloy steel sheet.
The drawings are numbered as follows:
the flexible screen comprises a flexible screen 1, a first shell 2, a second shell 3, an elastic metal sheet 4 and a groove 41.
Detailed Description
The embodiment of the invention discloses a flexible display device, which aims to improve the stability of a product and reduce the cost.
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.
Referring to fig. 1 to 4, fig. 1 is a schematic front structure diagram of a flexible display device according to an embodiment of the invention; FIG. 2 is a schematic view of the reverse structure of FIG. 1; FIG. 3 is a schematic view of the flexible display device shown in FIG. 1 in a bent state; FIG. 4 is a sectional view of a manganese alloy steel sheet.
In one embodiment, the present invention provides a flexible display device including a flexible screen 1, a first housing 2, a second housing 3, and a resilient metal sheet 4.
At least part of the flexible screen 1 can be bent, such as including a bending portion and plane portions on both sides of the bending portion. The flexible screen 1 may also be entirely bendable as required. In particular, the flexible screen 1 may be an organic light emitting diode panel, which has good bending characteristics. Of course, other flexible screen 1 structures may also be adopted, and reference may be made to the prior art specifically, which is not described herein again.
The first housing 2 and the second housing 3 are used to support the flexible screen 1, the first housing 2 and the second housing 3 refer to a structure for supporting the flexible screen 1 from both sides, and the structure of the first housing 2 and the second housing 3 may not be limited. In the case where the flexible screen 1 includes a curved portion and planar portions on both sides of the curved portion, then the first casing 2 and the second casing 3 support the planar portions on both sides, respectively. In the case where the flexible screen 1 is a curved portion as a whole, the first casing 2 and the second casing 3 may act on both side edges of the flexible screen 1 to be supported. The first housing 2 and the second housing 3 may be supported by being fixedly connected to the flexible screen 1.
The elastic metal sheet 4 is connected between the first casing 2 and the second casing 3, and is disposed at least corresponding to a portion where the flexible screen 1 can be bent. It should be noted that the elastic metal sheet 4 is a pure metal sheet or a metal alloy sheet having elasticity to bend and restore the flexible screen 1. Under flexible screen 1 includes the flexion and lies in the plane portion's of flexion both sides the condition, elasticity sheetmetal 4 corresponds the flexion setting of flexible screen 1, along with the crooked elastic deformation of elasticity sheetmetal 4, drives flexible screen 1 gentle bending, when 4 elastic responses of elasticity sheetmetal, then drive flexible screen 1 and resume deformation thereupon.
When the flexible display device provided by the invention is applied, the excellent elasticity of the elastic metal sheet 4 is utilized, when the display device needs to be bent for displaying, the elastic metal sheet 4 connected with the first shell 2 and the second shell 3 is driven to generate elastic deformation by bending the first shell 2 and the second shell 3 towards the middle, and the corresponding supporting flexible screen 1 generates flexibility, so that the flexible display is realized. When the flexible screen 1 needs to be restored to the initial state, the first shell 2 and the second shell 3 only need to be pulled outwards, and the elastic metal sheet 4 can be rebounded to the initial state, so that the flexible screen 1 is driven to be restored to the initial state. Through the supporting effect of the elastic metal sheet 4 on the flexible screen 1, the stress concentration of the bending part of the flexible screen 1 can be effectively reduced, the damage of the bending position is reduced, and the reliability of the flexible display device is improved. In conclusion, the elastic metal sheet 4 is matched with the flexible screen 1 to realize bending, the structure is simple and reliable, and the production cost is low. And the flexible screen 1 is simpler and more convenient to reply due to the characteristic that the elastic metal sheet 4 rebounds quickly, so that the user experience is improved.
Furthermore, the elastic metal sheet 4 has a positioning portion for limiting the maximum bending angle of the elastic metal sheet 4. Preferably, the elastic metal sheet 4 has a concave groove 41 recessed toward one side of the flexible screen 1 to limit the maximum bending angle of the elastic metal sheet 4. I.e. the positioning portion is a groove 41. By providing the groove 41 on the elastic metal sheet 4, when the elastic metal sheet 4 is bent, the groove 41 tends to be deformed into a flat surface along with the bending, and stress concentration is formed at the groove 41. The elastic metal sheet 4 is thus restricted by the groove 41 and can be kept stationary at the maximum bending angle after it is bent to the angle, thereby facilitating the use of the bent screen function by the user. Meanwhile, the limitation of the maximum bending angle can also protect the flexible screen 1 and prevent the flexible screen from being bent excessively. The groove 41 is recessed towards one side of the flexible screen 1, so that when the flexible screen 1 is bent from two sides to the middle to be in a recessed state of the flexible screen 1, the maximum bending angle of the elastic metal sheet 4 is limited by the groove 41. According to the requirement, when the flexible screen 1 can be bent from two sides to the middle to form the convex state of the flexible screen 1, the groove 41 of the elastic metal sheet 4 can be correspondingly arranged to be concave towards the opposite side of the flexible screen 1. That is, the concave direction of the groove 41 is set to be opposite to the bending direction of the flexible screen 1, thereby effectively limiting the maximum bending angle of the elastic metal sheet 4.
It should be noted that the specific data of the maximum bending angle can be set according to the needs, and is not limited specifically here. And the arrangement position, number, size, shape, etc. of the grooves 41 are adjusted correspondingly to the maximum bending angle according to the specific maximum bending angle.
Specifically, the groove 41 may be a U-shaped groove 41, that is, the cross section of the groove 41 is U-shaped, and in the bending process of the U-shaped structure along with the elastic metal sheet 4, two side walls of the U-shape are prone to stress concentration and deformation, so as to limit the maximum bending angle of the elastic metal sheet 4. Of course, it is also possible to use a groove 41 having a V-shaped or other cross-section as required, only to limit the maximum bending angle of the elastic metal sheet 4.
Preferably, the minimum distance between the elastic metal sheet 4 and the flexible screen 1 is a preset interval. It should be noted that the minimum distance between the elastic metal sheet 4 and the flexible screen 1 refers to the minimum distance between the elastic metal sheet 4 and the flexible screen 1 during the process from the initial state to the bending state of the flexible display device, and usually the minimum distance between the two is when the elastic metal sheet 4 is bent to the limit position. The minimum interval sets up to predetermineeing the interval, therefore even also can not produce the interference between flexible screen 1 after buckling between elastic metal piece 4, has protection and supporting role to flexible screen 1 when expansion and compound, has avoided flexible screen 1 to receive external force to damage. The size of the specific preset interval may be set according to needs, and is not specifically limited herein.
Further, the groove 41 is a bar-shaped groove 41, and the length direction of the bar-shaped groove 41 coincides with the pitch direction of the first housing 2 and the second housing 3. That is, as shown in fig. 2, the longitudinal direction of the bar-shaped groove 41 is the up-down direction in the drawing, and is the same as the pitch direction of the first housing 2 and the second housing 3. With such an arrangement, the side walls of the two sides of the groove 41 in the width direction are more likely to be deformed due to stress concentration along with the bending of the elastic metal sheet 4, so as to limit the maximum bending angle of the elastic metal sheet 4.
Further, the width of the groove 41 is gradually reduced from the notch to the groove bottom. That is, the side wall in the width direction is an inclined wall, so that the joint of the inclined wall and the notch and the groove bottom is more likely to generate stress concentration and deform during bending, so as to limit and limit the maximum bending angle of the elastic metal sheet 4.
In the above embodiments each provided with a groove 41, it is preferable to include a plurality of grooves 41 arranged in parallel. The grooves 41 act together to limit the maximum bending angle of the elastic metal sheet 4, so that the reliability of the structure is further improved. And according to the different demands to the biggest angle of buckling, thereby can satisfy different biggest angles of buckling through the number of adjustment recess 41.
In addition to the above embodiments, the elastic metal sheet 4 is a manganese alloy steel sheet. The manganese alloy steel sheet has excellent elastic function, can realize the bending and recovery functions of the flexible screen 1, and has low cost. The type, carbon content, manganese content and other parameters of the manganese alloy steel can be set according to the needs, and are not particularly limited herein. Of course, other pure metals or alloys having excellent elasticity may be used as the elastic metal sheet 4 as needed.
In the above embodiments, the two ends of the elastic metal sheet 4 are detachably and fixedly connected with the first casing 2 and the second casing 3, respectively. Further, when the elastic metal piece 4 is aged or the reliability is lowered due to the reduction of fatigue elasticity, the elastic metal piece 4 can be easily replaced or maintained. Moreover, can include a plurality of elastic metal pieces 4 that correspond different biggest angle of buckling to according to the corresponding different elastic metal pieces 4 of changing of different application scenes of flexible display device, with the demand that satisfies different biggest angle of buckling, thereby improve the commonality of first casing 2 and second casing 3, further reduction in production cost.
Specifically, the elastic metal sheet 4 can be bonded with the first shell 2 and the second shell 3, and the operation is simple and convenient, the reliability is high, and the occupied space is extremely small. Of course, other conventional mechanical means of removably securing the connection may be used as desired. The flexible screen 1 and the first and second housings 2, 3 may also be fixed in place by adhesive bonding.
In order to buffer the vibration of the flexible screen 1 caused by the flexible deformation of the flexible screen 1 when the elastic metal sheet 4 is bent or restored, a flexible buffer cushion can be arranged between the elastic metal sheet 4 and the flexible screen 1, such as a spongy cushion. Thereby further playing the guard action to flexible screen 1, avoid its damage that causes because of the vibration. If necessary, a flexible cushion pad may be disposed between the flexible screen 1 and the first and second housings 2 and 3 to further cushion the vibration.
The above-described technical solution is described below with a preferred embodiment.
The flexible display device comprises a flexible screen 1, a first shell 2, a second shell 3 and a manganese alloy steel sheet. Wherein at least part of the flexible screen 1 is bendable. The first housing 2 and the second housing 3 serve to support the flexible screen 1. The manganese alloy steel sheet is connected between the first shell 2 and the second shell 3, and a groove 41 which is concave towards one side of the flexible screen 1 is formed in the manganese alloy steel sheet so as to limit the maximum bending angle of the manganese alloy steel sheet. The thickness of the manganese alloy steel sheet is not more than 0.2mm, preferably 0.2mm, the width of the manganese alloy steel sheet is not less than 35mm, grooves 41 with the depth of not less than 0.6mm and the width of 5mm are stamped on the manganese alloy steel sheet, and the distance between the two ends of the grooves 41 in the length direction and the edge of the manganese alloy steel sheet is not more than 1 mm. The two ends of the shell, namely the first shell 2 and the second shell 3 are respectively bent towards the middle of the flexible screen 1, and when the groove 41 tends to be flat, namely the manganese alloy steel sheet is bent to the limit. When the flexible screen needs to be restored, the first shell 2 and the second shell 3 are pulled outwards by hands, the manganese alloy steel sheet rebounds immediately, and the flexible screen 1 finishes a bending restoration function along with rebounding.
Based on the flexible display device provided in the above embodiment, the present invention further provides a mobile terminal, which includes any one of the flexible display devices in the above embodiments. Since the mobile terminal employs the flexible display device in the above embodiment, please refer to the above embodiment for the beneficial effects of the mobile terminal.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A flexible display device comprising an at least partially bendable flexible screen (1), a first housing (2) and a second housing (3) supporting the flexible screen (1); the flexible screen is characterized by further comprising an elastic metal sheet (4) connected between the first shell (2) and the second shell (3), wherein the elastic metal sheet (4) is provided with a groove (41) which is concave towards one side of the flexible screen (1) so as to limit the maximum bending angle of the elastic metal sheet (4), the groove (41) is a groove which is arranged at the middle part of the elastic metal sheet (4) and has a closed edge and a distance from the edge to the edge of the elastic metal sheet (4) with a distance.
2. The flexible display device according to claim 1, wherein the minimum distance between the elastic metal sheet (4) and the flexible screen (1) is a preset interval.
3. The flexible display device according to claim 1, wherein the groove (41) is a bar-shaped groove (41), and a length direction of the bar-shaped groove (41) coincides with a pitch direction of the first housing (2) and the second housing (3).
4. A flexible display device according to claim 1, wherein the width of the groove (41) is gradually decreasing from slot to slot bottom.
5. A flexible display device according to claim 1, comprising a plurality of said grooves (41) arranged in parallel side by side.
6. A flexible display device according to any one of claims 1-5, wherein the elastic metal sheet (4) is a manganese alloy steel sheet.
7. A flexible display device according to any one of claims 1-5, wherein both ends of the resilient metal sheet (4) are detachably and fixedly connected to the first housing (2) and the second housing (3), respectively.
8. A flexible display device according to any one of claims 1-5, wherein a flexible buffer pad is arranged between the resilient metal sheet (4) and the flexible screen (1).
9. A mobile terminal, characterized in that it comprises a flexible display device according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710384894.2A CN107181838B (en) | 2017-05-26 | 2017-05-26 | Flexible display device and mobile terminal with same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710384894.2A CN107181838B (en) | 2017-05-26 | 2017-05-26 | Flexible display device and mobile terminal with same |
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| CN107181838A CN107181838A (en) | 2017-09-19 |
| CN107181838B true CN107181838B (en) | 2020-11-10 |
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| CN201710384894.2A Active CN107181838B (en) | 2017-05-26 | 2017-05-26 | Flexible display device and mobile terminal with same |
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| CN108271324B (en) * | 2017-12-20 | 2024-04-26 | 广东长盈精密技术有限公司 | Shell and mobile terminal |
| CN108163040B (en) * | 2017-12-27 | 2020-06-09 | 昆山维信诺科技有限公司 | Steering wheel |
| CN108282560A (en) * | 2018-01-26 | 2018-07-13 | 努比亚技术有限公司 | flexible screen assembly and mobile terminal |
| EP3767611A1 (en) * | 2018-03-12 | 2021-01-20 | Shenzhen Royole Technologies Co., Ltd | Bending component and flexible display device |
| CN108806509B (en) * | 2018-05-31 | 2022-01-25 | 昆山国显光电有限公司 | Flexible substrate, packaging connecting piece and display screen |
| CN112513961A (en) * | 2018-06-15 | 2021-03-16 | 深圳市柔宇科技股份有限公司 | Flexible screen dustproof mechanism, electronic device and manufacturing method of flexible screen dustproof mechanism |
| CN112513772A (en) * | 2018-06-15 | 2021-03-16 | 深圳市柔宇科技股份有限公司 | Electronic device and flexible screen supporting mechanism thereof |
| CN109669513B (en) * | 2018-11-06 | 2022-05-17 | Oppo广东移动通信有限公司 | Electronic device |
| CN109630842A (en) * | 2019-01-30 | 2019-04-16 | 武汉华星光电半导体显示技术有限公司 | The support construction of flexible display screen |
| US11023009B2 (en) * | 2019-02-12 | 2021-06-01 | Samsung Display Co., Ltd. | Folding member and display device including the same |
| CN110085640A (en) * | 2019-04-24 | 2019-08-02 | 武汉华星光电半导体显示技术有限公司 | Flexible display panels and display device |
| US10985335B2 (en) | 2019-04-24 | 2021-04-20 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Flexible display panel and display device |
| CN111064830B (en) * | 2019-11-25 | 2021-06-04 | 昆山科森科技股份有限公司 | High-precision rotating shaft mechanism for intelligent machine |
| CN110971724B (en) * | 2019-11-25 | 2021-06-04 | 昆山科森科技股份有限公司 | Pivot mechanism for outer folding screen mobile phone |
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