CN107256679B - Foldable display device - Google Patents
Foldable display device Download PDFInfo
- Publication number
- CN107256679B CN107256679B CN201710694210.9A CN201710694210A CN107256679B CN 107256679 B CN107256679 B CN 107256679B CN 201710694210 A CN201710694210 A CN 201710694210A CN 107256679 B CN107256679 B CN 107256679B
- Authority
- CN
- China
- Prior art keywords
- foldable display
- display screen
- state
- display device
- handle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000006835 compression Effects 0.000 claims description 22
- 238000007906 compression Methods 0.000 claims description 22
- 238000013016 damping Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 19
- 230000009471 action Effects 0.000 claims description 17
- 230000033001 locomotion Effects 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present application relates to a foldable display device. The foldable display device includes: a foldable display screen having a stowed state and a deployed state; a housing, wherein in the stowed state the foldable display screen is housed within the housing, and in the deployed state at least a portion of the foldable display screen is deployed outside the housing; and the opening mechanism comprises a switch part and a driving part, the driving part is connected with the foldable display screen, and the switch part controls the driving part to act so that the driving part drives the foldable display screen to finish the folding state. In the scheme, the opening mechanism is arranged to realize automatic unfolding of the foldable display screen, so that the automation degree of the foldable display device is improved, and the product quality is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a foldable display device.
Background
The foldable display device generally has a folded state and an unfolded state, and when the foldable display device is unfolded from the folded state to the unfolded state, manual operation is generally required for unfolding, which results in a low degree of automation when the foldable display device is unfolded.
Disclosure of Invention
The application provides a foldable display device, which improves the automation degree of the foldable display device when being opened.
The application provides a foldable display device, including:
a foldable display screen having a stowed state and a deployed state;
a housing, wherein in the stowed state the foldable display screen is housed within the housing, and in the deployed state at least a portion of the foldable display screen is deployed outside the housing; and
the opening mechanism comprises a switch part and a driving part, the driving part is connected with the foldable display screen, and the switch part controls the driving part to act so that the driving part drives the foldable display screen to finish the folding state.
The technical scheme provided by the application can achieve the following beneficial effects:
the application provides a foldable display device, the device includes collapsible display screen and opening mechanism, and when needs operate collapsible display device and open, the user can operate switch portion, and switch portion control drive division action to drive collapsible display screen and expand. Therefore, the automatic unfolding of the foldable display screen is realized by the opening mechanism, the automation degree of the foldable display device is improved, and the product quality is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a front view of a foldable display screen provided in an embodiment of the present application in an unfolded state;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic view of a foldable display device provided in an embodiment of the present application in a retracted state;
FIG. 4 is a schematic view of a foldable display screen provided in an embodiment of the present application in a stowed state;
FIG. 5 is a longitudinal cross-sectional view of a first embodiment of a retractable bar in a foldable display device according to an embodiment of the present application;
FIG. 6 is a longitudinal cross-sectional view of a second embodiment of a retractable bar in a foldable display device according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a damping member in a foldable display device according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a foldable display device according to an embodiment of the present application, in which a damping member is disposed inside a housing;
fig. 9 is a schematic view of a foldable display device provided with a guide member;
fig. 10 is a schematic view illustrating a position limiting member and a telescopic rod of a housing of the foldable display device according to the embodiment of the present application in a position limiting manner;
fig. 11 is a schematic view of a control panel in a foldable display device according to an embodiment of the present application.
Reference numerals:
1-a foldable display screen;
11-a mating portion;
12-a head end;
13-tail end;
2-a shell;
21-a first part;
22-a second part;
23-a linking moiety;
231-an opening;
24-a guide track;
25-a guide;
26-a fixed shaft;
3-an opening mechanism;
31-a switching section;
311-a button;
312-a locking mechanism;
312 a-hook
312 b-card slot;
32-a drive section;
321-an actuating member;
322-a handle;
33-a telescopic rod;
331-a telescopic section;
331 a-bumps;
331 b-groove;
331 c-pin hole;
331 d-spring;
331 e-a snap-fit projection;
33 a-a rod body;
33 b-a damping member;
4-a limiting member;
41-a first projection;
42-a second projection;
5-control panel.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
The present application is described in further detail below with reference to specific embodiments and with reference to the attached drawings.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it should also be understood that when an element is referred to as being "on" or "under" another element, it can be directly formed on "or" under "the other element or be indirectly formed on" or "under" the other element through intervening elements.
The present application is described in further detail below with reference to specific embodiments and with reference to the attached drawings. The thicknesses and shapes of the respective components in the drawings do not reflect the true scale of the display device, and are merely intended to schematically illustrate the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Referring to fig. 1 and 2, fig. 1 shows a front view of a foldable display screen in an unfolded state; fig. 2 is a sectional view a-a in fig. 1.
The present application provides a foldable display device comprising a foldable display screen 1, a housing 2 and an opening mechanism 3. Wherein, collapsible display screen 1 has packing up state and expansion state, and under expansion state, collapsible display screen 1 expandes outside casing 2, and can realize the demonstration of the image of maximum area, and under packing up state, collapsible display screen 1 accomodates in casing 2, and its outside space that occupies reduces, makes things convenient for collapsible display device to carry.
The housing 2 is used for accommodating the foldable display screen 1, and as shown in fig. 1, the housing 2 may include a first portion 21, a second portion 22 and a connecting portion 23 connected between the first portion 21 and the second portion 22, which are oppositely arranged, and jointly enclose a cavity for accommodating the foldable display screen 1.
As shown in fig. 1 and fig. 2, the connecting portion 23 includes an opening 231, the foldable display screen 1 extends from the opening 231 and is received in the housing 2, and the size of the opening 231 should match the size of the foldable display screen 1, that is, the size of the opening 231 should ensure that the foldable display screen 1 can smoothly pass through during the unfolding and folding processes, but the opening 231 does not need to be set too large, on the one hand, when the opening 231 is too large, sundries can easily enter into the cavity to damage the foldable display screen 1; on the other hand, when the opening 231 is too large, the foldable display screen 1 cannot be limited, and the unfolded foldable display screen 1 is prone to shake at the opening 231. In the embodiment shown in fig. 2, the opening 231 may be provided as a bar-shaped slit with reference to the shape of the foldable display screen 1.
It should be noted that, during the process of converting the foldable display screen 1 from the unfolded state to the folded state, at least a part of the foldable display screen 1 may be kept unfolded outside the housing 2, so that the foldable display screen 1 is in a transition state between the folded state and the unfolded state. A specific structure for maintaining the foldable display screen 1 in the transitional state will be described below.
The term "transitional state" as used herein is understood to mean a state in which the foldable display 1 is not fully collapsed or fully expanded. In this transitional state, it is possible to easily view a clock, a date, and the like displayed at the lower end of the foldable display screen 1. At this time, it is not necessary to fully unfold the foldable display 1.
It is easy to understand that, when the foldable display screen 1 is in the unfolded state, one end of the foldable display screen 1 is a fixed end which ensures that the foldable display screen 1 does not separate from the housing, and the other end is a driven end which can be driven by the opening mechanism 3 to unfold the foldable display screen 1. The "lower end of the foldable display panel 1" referred to herein means a portion of the foldable display panel 1 near the driven end.
The opening mechanism 3 may enable automatic unfolding of the foldable display screen 1, enabling the foldable display screen 1 to be in an unfolded state or a transitional state. Specifically, the opening mechanism 3 includes a switch portion 31 and a driving portion 32, wherein the driving portion 32 is connected to the foldable display screen 1, and the switch portion 31 is configured to control the driving portion 32 to move, so that the driving portion 32 drives the foldable display screen 1 to unfold, and the folded state is ended.
Before explaining the specific structure of the opening mechanism 3 and how to control the operation of the driving unit 32 in detail, first, how to hold the foldable display panel 1 in the folded state will be described.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating a foldable display device in a collapsed state.
In this embodiment, in order to reduce the driving force of the driving part 32 directly acting on the foldable display 1, the driving part 32 is implemented as two parts, one is an actuator 321, and the other is a handle 322, wherein the actuator 321 is used as a power part for generating the driving force, the handle 322 is used as an auxiliary part, and the handle 322 is connected to the foldable display 1. So configured, corresponding mating structures may be provided on the handle 322 and the housing 2, and the foldable display screen 1 may be maintained in the stowed state by the mating structures.
In the embodiment shown in fig. 3, the engaging structure is implemented as a locking mechanism 312, and the locking mechanism 312 is configured in a manner that a hook is engaged with a slot, for example, a slot 312b is disposed on the housing 2, and correspondingly, a hook 312a is disposed on the handle 322, and when the hook 312a is engaged with the slot 312b, the handle 322 and the housing 2 can be kept fixed relatively, and at this time, the foldable display screen 1 is kept in the folded state.
Alternatively, the card slot 312b may be disposed on the handle 322, and the hook 312a may be disposed on the housing 2. The matching structure of the clamping groove 312b and the clamping hook 312a is relatively simple, the occupied space is small, the manufacturing is simple, and the operation is more convenient.
Although one embodiment of the engagement structure is shown in FIG. 3, it should be noted that the engagement structure is not limited to the locking mechanism 312 shown in FIG. 3, and that other configurations are possible.
In addition, in the embodiment shown in fig. 3, the actuator 312 is a compression spring, and in the retracted state, the compression spring is compressed between the handle 322 and the housing 2, and at this time, the compression spring is in a stored energy state.
It should also be noted that other ways of fixing the handle 322 and the housing 2 relative to each other may be chosen to keep the foldable display device in the folded state, such as adhesion, snap-fit, or magnetic attraction.
In this application, the shape of the foldable display screen 1 in the folded state is not limited, and in an embodiment, the foldable display screen 1 may be folded in a winding manner.
Referring to fig. 4, fig. 4 shows a schematic view of a foldable display screen in a stowed state.
The folded foldable display screen 1 is in a roll shape, and the roll-shaped foldable display screen 1 has a head end 12 located at the innermost layer after being folded and a tail end 13 located at the outermost layer. For example, the folded foldable display 1 may also be stacked in multiple layers.
In the embodiment shown in fig. 4, the head end 12 is a fixed end, which is fixed to the housing 2, and the tail end 13 is connected to the driving portion 32, and according to the embodiment shown in fig. 3, the tail end 13 is connected to the handle 322. Having described the state of the foldable display panel 1 and the structures of the respective parts in the stowed state, how the opening mechanism 3 causes the foldable display panel 1 to unfold will be described next. The opening mechanism 3 will be explained below on the basis of the embodiment of the foldable display device shown in fig. 1 to 4.
With continued reference to fig. 3, the locking mechanism 312 is part of the switch portion 31, and besides, the switch portion 31 further includes a button 311, and during the unfolding process of the foldable display screen 1, the button 311 contacts the locking mechanism 312 and unlocks the locking mechanism 312.
The driving part 32 comprises an actuating member 321, i.e. a compression spring in the present embodiment, and during the unfolding process, the actuating member 321 provides a main force for unfolding the foldable display screen 1. When the foldable display screen 1 needs to be displayed, an operator presses the button 311, and under the action of the pressing force, the button 311 contacts with the hook 312b, at this time, the hook 312b is separated from the slot 312a, and the locking mechanism 312 is unlocked. The compression spring releases energy after the latch mechanism 312 is unlocked to drive the handle 322 away from the housing 2, whereupon the foldable display screen 1 is sequentially unfolded from the rear end 13.
According to the above description, when the foldable display device needs to be operated to be opened, the foldable display screen 1 can be automatically unfolded through the opening mechanism 3, so that the automation degree of the foldable display device is improved, and the product quality is improved.
It should be noted that the manner in which the switch unit 31 controls the driving unit 32 is not limited to the manner in which the mechanical components are in transmission connection, and for example, in some other embodiments, the switch unit 31 may control the driving unit 32 to be electrically connected.
The application provides a foldable display device except that degree of automation obtains promoting, still has following advantage: firstly, the foldable display device is convenient to unfold, and in the unfolding process, an operator does not need to pull the foldable display screen, and particularly for disabled people, the operation of opening the foldable display device can be completed by one hand; second, in such a manner that the opening mechanism 3 automatically opens the foldable display device, it is possible to effectively prevent the user who first touches the foldable display device from damaging the foldable display screen 1 due to unclear operation method.
Further, referring to fig. 1 again, the opening mechanism 3 may further include a telescopic rod 33, one end of the telescopic rod 33 is connected to the housing 2, the other end of the telescopic rod 33 is connected to the handle 322, the telescopic rod 33 has an extension stroke and a retraction stroke, and the telescopic rod 33 generates the extension stroke under the action of the actuating member 321 during the unfolding process of the foldable display screen 1. That is, the driving of the actuator 321 can expand the foldable display 1 and extend the extendable rod 33. Because the extendable and retractable rod 33 has a definite direction when extended, which is along its own axis, the extendable and retractable rod 33 can provide a guide for the movement of the handle 322, so as to reduce the shaking or deviation of the handle 322 in the driving stroke, and further reduce the vibration when the foldable display screen 1 is unfolded.
In the above-described embodiments, the actuator 321 is a compression spring, and the compression spring is compressed between the handle 322 and the housing 2 in the retracted state of the foldable display screen 1; during the unfolding of the foldable display screen 1, the handle 322 and the housing 2 are driven away from each other by the compression spring.
In the case where the extendable and retractable rod 33 is not provided, one end of the compression spring is connected to the handle 322, and the other end is connected to the housing 2, and when the foldable display panel is converted from the retracted state to the extended state, the compression spring releases energy and generates a driving force for driving the foldable display panel 1 to be unfolded.
In the case of the retractable rod 33, the compression spring can be sleeved outside the retractable rod 33, and it is easy to understand that the compression spring is generally formed by winding a spring wire, the spring wire of the compression spring is wound around the retractable rod, and the compression spring and the retractable rod form a sleeved structure. So configured, the extendable rod 33 can provide guidance for the compression stroke and the return stroke of the compression spring, so that the compression spring has better stability in the compression stroke and the return stroke.
Of course, the actuator 321 may be provided as an extension spring, and the difference between the extension spring and the actuator is that the extension spring is deformed in a retracted state and is extended in an extended state, and the extension spring may be provided in parallel with the extendable rod 33.
Referring to fig. 5, fig. 5 shows a longitudinal section view of a first embodiment of the telescopic rod, said longitudinal section being a section parallel to the telescopic direction of the telescopic rod. According to an embodiment, the telescopic rod 33 may include a plurality of telescopic sections 331 sequentially connected along the extending direction of the telescopic rod 33, and each telescopic section 331 is a hollow structure having a cavity for receiving the telescopic section 331 adjacent thereto. Specifically, each telescopic end 331 of the telescopic rod 33 may be a cylindrical tube, and the axial direction of each telescopic end 331 is consistent with the extending direction of the telescopic rod 33.
It is necessary that each telescopic section 331 is tapered in the extending direction of the telescopic rod 33, specifically, in the fully extended state of the telescopic rod 33, the inner diameter of one cylindrical tubular telescopic end 331 (i.e. the aperture of the cylindrical tubular telescopic end 331) is larger than the outer diameter of the other telescopic end 331 adjacent to the one cylindrical tubular telescopic end 331. In this way, in the stowed state, the thinner telescopic segments 331 may be received within the cavities of the adjacent thicker telescopic segments 331.
Further, in the embodiment shown in fig. 5, each telescopic section 331 may further include a protrusion and a recess disposed thereon, and in this embodiment, each telescopic section 331 includes a protrusion 331a disposed on an outer surface thereof and a recess 331b disposed on a cavity surface thereof, and of course, in other preferred embodiments, each telescopic section 331 may include a recess 331b disposed on an outer surface thereof and a protrusion 331a disposed on a cavity surface thereof. In the unfolding process of the foldable display screen 1, under the driving force of the actuating element 321, two adjacent telescopic sections 331 generate relative movement, the telescopic sections 331 extend out from the cavity of the other telescopic section 331, and when the protrusion 331a of each telescopic section 331 moves to the corresponding groove 331b of the other telescopic section 331, the protrusion 331a is clamped in the groove 331b, so that each telescopic section 331 is clamped and fixed without retraction. For convenience of illustration, two adjacent telescopic segments 331 are illustrated in fig. 5 in a separated manner, that is, in a normal working state, the two adjacent telescopic segments 331 do not have the relative position shown in fig. 5.
In addition, in order to facilitate the clamping, the protrusion 331a can be replaced by an elastic protrusion, please refer to fig. 6, which shows a longitudinal sectional view of a second embodiment of the telescopic rod in fig. 6.
Elastic bulge includes spring 331d and joint arch 331e, when collapsible display screen 1 is in the expansion state, joint arch 331e stretches out from each flexible section 331 outer wall under the spring force effect of spring 331d, when collapsible display screen 1 changes the state of packing up into by the expansion state, another flexible section 331 of cover-mounted in one of them flexible section 331 outside overcomes the spring force, make joint arch 331e retract to the inside of cavity, elastic bulge compares than fixed arch, required effort is less when joint arch 331e blocks into recess 331b, and wear and tear for a short time, the joint structure is more stable.
The extensible rod 33 may be replaced with a damper having a damping characteristic, which is a device for reducing the speed of the mechanical movement and dissipating kinetic energy, since the damper has a damping force in a direction opposite to the direction of the force applied to the handle 322 by the actuating member 321. Therefore, the damper can control the unfolding speed of the foldable display screen 1, and avoid the instant unfolding of the foldable display screen 1 under the action of the spring of the actuating member 321, thereby not only improving the reliability of the display device, but also improving the user experience.
Alternatively, the unfolding speed of the foldable display screen 1 can be reduced by adding a damping member, please refer to fig. 7, and fig. 7 shows a schematic diagram of the damping member in the foldable display device.
Specifically, the telescopic rod 33 includes a rod body 33a and a damping member 33b connected to each other, wherein the rod body 33a is connected to the handle 322, and the damping member 33b is connected to the housing 2, and in this case, the rod body 33a may adopt the structure of the plurality of telescopic segments 331 as described above.
In the unfolded state, the damping member 33b may apply a damping force to the lever body 33a opposite to the extending direction of the lever body 33a, and the damping force may apply a force to the lever body 33a opposite to the extending direction thereof, thereby increasing the driving load of the actuating member 321, thereby slowing down the unfolding speed of the foldable display screen 1, so that the damping member 33b acts as a buffer to the telescopic lever 33 when the telescopic lever 33 is instantaneously extended by the spring.
In the embodiment shown in fig. 7, the damping member 33b is an extension spring, and in other embodiments, an elastic rubber body or the like may be used as the damping member 33 b.
Referring to fig. 8, fig. 8 is a schematic view showing a damping member 33b disposed in the housing 2 of the foldable display device. In this embodiment, in order to reduce the amount of shaking of the extendable rod 33, a damper 33b is provided inside the housing. Specifically, one end of the damper 33b is connected to the inner wall of the housing 2, the other end is connected to the extendable rod 33, and the extendable rod 33 penetrates into the housing 2. Since the housing 2 supports and limits the extendable rod 33, the amount of shaking of the extendable rod 33 during extension or retraction can be reduced, thereby improving the stability of the operation of the extendable rod 33.
In addition, in the embodiment shown in fig. 8, the original length of the compression spring can be reduced to ensure that the foldable display screen 1 can be smoothly stored in the housing 2.
Referring again to fig. 2, the present application provides a housing 2 that includes guide rails 24, thereby allowing the foldable display screen 1 to move, i.e., collapse and expand, along the path of the guide rails 24 during both collapse and expansion.
The guide track 24 may be formed by providing a groove or building a rib on the housing 2, wherein the groove is formed on the housing 2 in a manner of removing material, and the guide track 24 is formed at a recess after the material is removed; conversely, the guide tracks 24 can be formed by providing ribs (ribs can also be said to be projections) on the housing 2 in such a way that the ribs extend out of the material, and after the ribs are formed, the guide tracks 24 are formed by the spaces left between the ribs.
By arranging the guide track 24, the inner ring and the outer ring of the foldable display screen 1 can be separated from each other, so that the phenomenon that a display surface and a non-display surface rub each other in the process of folding and unfolding the foldable display screen 1 can be avoided; on the other hand, in the unfolding process, because the foldable display screen 1 in the folded state is rolled into multiple layers under the action of the driving part 32, the opening speed of the inner layer and the outer layer around the inner layer has a difference, at the moment that the opening device is opened, the foldable display screen 1 is unfolded under the driving force, the movement of the inner layer compared with the outer layer has a certain delay, at this time, the outer layer around the inner layer can be tightened, the inner layer is squeezed, and the inner layer close to the head end 12 of the foldable display screen 1 can be prevented from touching or rubbing each other when being opened by arranging the guide rail 24.
It should be noted that the guide rail 24 is not limited to the embodiment directly disposed on the housing 2, and in other embodiments, the guide rail 24 may be disposed separately, that is, the guide rail 2 is a single part, and the guide rail 2 may be a curved structure rolled into a roll and then connected to the housing 2, and the connection manner is not limited.
In the embodiment shown in fig. 2, the guide rail 24 extends from the center of the inner wall of the first portion 21 to the edge of the first portion 21 along a circular curve, and it can also be understood that the projection of the guide rail 24 on the first portion 21 is spiral or scroll-shaped, for this reason, the guide rail 24 can fold the foldable display screen 1 in a roll shape or a scroll shape, the folded foldable display screen 1 is rolled into multiple layers, the storage space is saved, and each layer of the rolled foldable display screen 1 is separated from each other. Moreover, the guide rail 24 with the above structure can also prevent the foldable display screen 1 from being folded in a folded state.
Of course, the position of the guide rail 24 on the inner wall of the first portion 21 is not limited to the central position of the first portion 21, and the guide rail 24 may be provided on other positions on the inner wall of the first portion 21 depending on the arrangement of the internal members.
Further, in order to facilitate the foldable display screen 1 to move in the guide rail 24, the foldable display screen 1 may be provided with a fitting portion 11, and the fitting portion 11 is used for realizing a sliding fit or a rolling fit with the guide rail 24 during the process of folding and unfolding the foldable display screen 1. In the embodiment shown in fig. 2, the engaging portion 11 comprises a roller provided at an edge of the foldable display screen 1 and engaged with the guide rail 24 in a rolling manner. The quantity of gyro wheel sets up to a plurality ofly, and a plurality of gyro wheels are arranged along the edge of collapsible display screen 1. Thus, on one hand, the foldable display screen 1 is prevented from directly contacting the guide rail 24, on the other hand, the friction force when the foldable display screen 1 is accommodated in the guide rail 24 is reduced, and the unfolding process of the foldable display screen 1 is smoother under the driving of the opening mechanism 3.
Referring to fig. 9, fig. 9 shows a schematic view of the placement of a guide within a guide track.
The provision of the guide 25 in the guide rail 24 facilitates the folding of the foldable display screen 1, since the guide 25 can apply a force to the foldable display screen 1 during the folding process, so that the foldable display screen 1 is automatically folded and received in the housing 2.
Specifically, the guide 25 may employ a spiral spring having a winding structure having an inner end located at the innermost layer after winding and an outer end located at the outermost layer, in which case the inner end of the spiral spring may be fixed at a central position of the inner wall of the first portion 21 and the outer end fixed with the foldable display screen 1. When the foldable display screen 1 is in the unfolded state, the scroll spring is stretched and stores energy, otherwise, in the process of folding the foldable display screen 1, an external force can act on the handle 322 and apply an acting force to the retractable rod 33 through the handle 322, under the acting force, the retractable rod 33 generates a retraction stroke, at this time, the scroll spring can provide power for folding the foldable display screen 1, and the foldable display screen 1 is accommodated in the guide track 24 under the restoring force of the scroll spring.
In the embodiment shown in fig. 9, in order to facilitate the connection of the foldable display screen 1 to the housing 2, the housing 2 is further provided with a fixing shaft 26, the fixing shaft 26 is arranged in the cavity, one end of the fixing shaft is connected to the first part 21, and the other end of the fixing shaft is connected to the second part 22. Thus, the foldable display screen 1 can be rolled around the fixing shaft 26, and the fixing shaft 26 can position the folded foldable display screen 1.
Similarly, in the embodiment provided with the scroll spring, the inner end of the scroll spring may be connected to the fixed shaft 26, and the outer end of the scroll spring is connected to the foldable display screen 1, so that the scroll spring is more smoothly stretched or contracted.
In the above-described embodiment, since the shape of the spiral spring is matched with the shape of the guide rail 24, both of which are spiral (helical), when the spiral spring is disposed, the spiral spring can be extended in the extending direction of the guide rail 24.
It has been explained in the foregoing that the foldable display screen 1 can be in a transitional state, which can be realized by a corresponding structure, for example, by providing the stopper 4.
Referring to fig. 10, fig. 10 is a schematic diagram illustrating the engagement between the position-limiting member and the retractable rod.
Locating part 4 and casing 2 swing joint, specifically, the mounting hole has been seted up on the casing 2, and locating part 4 inserts and arranges in the mounting hole, and along the axial motion of mounting hole. The path of the limit piece 4 having the extension stroke and the return stroke intersects with the telescopic path of the telescopic rod 33. Because the foldable display screen 1 is unfolded by a preset length in the transition state, the limiting member 4 should be clamped with the telescopic section 331 after the foldable display screen 1 is extended, so as to limit the telescopic section 331 to continue to extend, thereby achieving the purpose of controlling the movement stroke of the telescopic rod 33.
In the embodiment shown in fig. 10, the limiting member 4 may be implemented as a pin, the pin includes a first protrusion 41 and a second protrusion 42, the spring is sleeved outside the pin and clamped between the first protrusion 41 and the second protrusion 42, when the pin is pressed by an external force, the external force overcomes the spring force, the pin generates an extending stroke, and when the external force is removed, the pin generates a returning stroke under the action of a restoring force of the spring.
In addition, the telescopic section 331 is also provided with a corresponding pin hole 331c, and the pin shaft is matched with the pin hole 331c to limit the extension stroke of the telescopic rod 33.
Specifically, the pinhole 331c is seted up in the outer wall of flexible section 331, and runs through outer wall and cavity intercommunication, and the axial of round pin axle is parallel with the axial of pinhole, and when flexible section 331 extends to make pinhole 331c align with the round pin axle, the action of round pin axle and insert in pinhole 331c, at this moment, both realize spacing cooperation, and the extension action of flexible section 331 is stopped.
The limiting member 4 can be realized by the action of the switch portion 31, that is, the action of the limiting member 4 can be triggered by the switch portion 31, and the triggering mode can be mechanical triggering. In one embodiment, the switch portion 31 is respectively connected to the driving portion 32 and the limiting member 4 in a transmission manner, and the switch portion 31 includes two strokes, wherein the first stroke is used for controlling the foldable display screen 1 to open, and the second stroke is used for controlling the limiting member 4 to generate an extending stroke. Of course, the limiting member 4 can be controlled by a separate mechanism, for example, a separate switch is provided, and the switch is only used for controlling the action of the limiting member 4, that is, the action of the limiting member 4 and the unfolding action of the foldable display screen 1 are isolated from each other and do not interfere with each other.
In another embodiment, the switch portion 31 may also be triggered electronically, for example, a communication connection is established between the switch portion 31 and the limiting member 4, and after the switch portion 31 is started, the communication component receives the electrical signal and triggers the limiting member 4 to move through the signal.
Although fig. 10 shows an embodiment of the position-limiting engagement between the position-limiting member 4 and the telescopic rod 33, the engagement between the position-limiting member 4 and the telescopic rod 33 is not limited to the case shown in fig. 9, in other embodiments, the position-limiting member 4 may have other structures, and the position-limiting member 4 and the telescopic rod 33 may also have other engagement manners according to the application environment and the difference of the structures.
Referring to fig. 11, fig. 11 is a schematic diagram of a control panel in the foldable display device. In order to further improve the automation degree of the foldable display device, a control panel 5 may be further disposed on the housing 2, and the switch portion 31 is disposed on the control panel 5, that is, the switch portion 31 and the control panel 5 are integrated to form an intelligent operating system, the switch portion 31 is electrically connected to the driving portion 32, and the control panel 5 is clicked to operate the switch portion 31, so that the switch portion 31 controls the driving portion 32 to operate, and the foldable display device is more intelligent. The touch panel 5 may be a display panel with a touch function.
Above-mentioned scheme adopts the mode of electricity connection to control collapsible display screen and opens, compares with mechanical transmission structure, can reduce mechanical component, is favorable to realizing collapsible display device's lightweight and improves structural compactness.
In the application, the opening mechanism 3 is arranged in the foldable display device, so that the opening mechanism 3 can automatically open the foldable display screen 1 from the folded state to the unfolded state, on one hand, the intervention degree of a user in the unfolding process of the foldable display screen 1 is reduced, and the automation of the foldable display device is realized; on the other hand, the automatic unfolding mode can avoid damage to the foldable display screen 1 during operation of a user, and the foldable display screen 1 is protected to a certain extent.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A foldable display device, comprising:
a foldable display screen having a stowed state and a deployed state;
the foldable display screen comprises a shell, a first side and a second side, wherein the shell comprises a first part, a second part and a connecting part connected between the first part and the second part which are oppositely arranged, the first part and the second part jointly form a cavity for accommodating the foldable display screen, the foldable display screen is accommodated in the shell in the retracted state, and at least part of the foldable display screen is unfolded outside the shell in the unfolded state; and
the opening mechanism comprises a switch part and a driving part, the driving part is connected with the foldable display screen, and the switch part controls the driving part to act so that the driving part drives the foldable display screen to finish the folding state;
the housing includes a guide track that is configured to guide the rail,
the foldable display screen is movable within the housing along a path of the guide track;
arranging a guide member in the guide rail, wherein the guide member applies acting force to the foldable display screen during the folding process of the foldable display screen, so that the foldable display screen is automatically folded and contained in the shell;
the guide piece is a volute spiral spring, the volute spiral spring is of a winding structure and is provided with an inner end located at the innermost layer and an outer end located at the outermost layer after winding, the inner end of the volute spiral spring is fixed at the center position of the inner wall of the first part of the shell, the outer end of the volute spiral spring is fixed with the foldable display screen, so that when the foldable display screen is in the unfolded state, the volute spiral spring is stretched and stores energy, in the folding process of the foldable display screen, the volute spiral spring provides power for folding of the foldable display screen, and the foldable display screen is stored in the guide track under the action of restoring force of the volute spiral spring;
the shape of the spiral spring is matched with that of the guide track, and the spiral spring extends along the extension direction of the guide track;
the drive portion of the opening mechanism includes an actuator and a handle, the handle being connected to the foldable display screen,
during the unfolding process of the foldable display screen, the actuating piece applies acting force to the handle to drive the foldable display screen to unfold;
the opening mechanism also comprises a telescopic rod, one end of the telescopic rod is connected with the shell, the other end of the telescopic rod is connected with the handle,
during the unfolding process, the telescopic rod generates an extension stroke under the action of the actuating piece to provide guidance for the action of the driving part,
the telescopic rod comprises a rod body and a damping piece which are connected, the rod body is connected with the handle, the damping piece is connected with the shell, the rod body comprises a plurality of telescopic sections,
in the deployed state, the damping member applies a damping force to the rod body in a direction opposite to an extension direction of the rod body; the damping piece is an extension spring, and two ends of the extension spring in the elastic direction are respectively connected to the rod body and the shell;
the foldable display device further comprises a limiting piece movably connected to the shell, the limiting piece is provided with an extending stroke and a returning stroke, and the paths of the extending stroke and the returning stroke are intersected with the telescopic path of the telescopic rod;
the limit piece extends out and is clamped with the telescopic rod to limit the movement of the telescopic rod so as to enable the foldable display screen to be in a transition state,
the transition state is a state when the foldable display screen is not fully unfolded.
2. The foldable display device of claim 1, wherein the foldable display screen comprises an engaging portion,
in the conversion process of the foldable display screen between the folded state and the unfolded state, the matching part is in sliding fit or rolling fit with the guide rail.
3. The foldable display device of claim 1, wherein in the stowed state, the foldable display screen is folded into a roll shape, the foldable display screen having a tail end located at an outermost layer after being folded, the tail end being connected to the driving portion of the opening mechanism.
4. The foldable display device of claim 1, wherein during the collapsing of the foldable display screen, an external force applies a force to the retractable rod via the handle to cause the retractable rod to produce a retraction stroke.
5. The foldable display device of claim 4, wherein the telescopic rod comprises a plurality of telescopic sections sequentially connected along the extending direction of the telescopic rod, each telescopic section is a hollow structure with a cavity, and each telescopic section sequentially becomes thinner along the extending direction of the telescopic rod,
in the retracted state, the telescopic section is accommodated in a cavity of another adjacent telescopic section.
6. The foldable display device of claim 4, wherein the actuator is a compression spring disposed between the handle and the housing and sleeved outside the retractable rod;
in the stowed state, the compression spring is compressed between the handle and the housing;
during the deployment, the compression spring drives the handle and the housing away from each other.
7. The foldable display device of claim 1, wherein the switch portion comprises a button and a locking mechanism,
in the stowed state, the locking mechanism secures the handle and the housing to one another, maintaining the foldable display screen in the stowed state,
the button generates a movement stroke under the action of external force, and in the movement stroke, the button releases the fixing of the locking mechanism on the handle and the shell.
8. The foldable display device of claim 7, wherein the locking mechanism comprises a catch and a slot, one of the housing and the handle comprises the catch and the other comprises the slot,
and in the folding state, the clamping hook is clamped in the clamping groove.
9. The foldable display device of claim 8, wherein the button contacts the hook and drives the hook out of the slot during the movement stroke.
10. The foldable display device of claim 1, further comprising a control panel disposed on the housing, wherein the switch portion is disposed on the control panel and electrically connected to the driving portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694210.9A CN107256679B (en) | 2017-08-14 | 2017-08-14 | Foldable display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694210.9A CN107256679B (en) | 2017-08-14 | 2017-08-14 | Foldable display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107256679A CN107256679A (en) | 2017-10-17 |
| CN107256679B true CN107256679B (en) | 2020-04-28 |
Family
ID=60026646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710694210.9A Active CN107256679B (en) | 2017-08-14 | 2017-08-14 | Foldable display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107256679B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107870724B (en) * | 2017-11-07 | 2020-04-21 | Oppo广东移动通信有限公司 | Display screen unfolding method and device and terminal |
| CN108717828B (en) * | 2018-05-31 | 2020-08-21 | 京东方科技集团股份有限公司 | Display device |
| CN111091759A (en) * | 2019-04-19 | 2020-05-01 | 广东小天才科技有限公司 | Eye protection tablet with flexible display |
| CN110782798B (en) * | 2019-11-19 | 2022-07-01 | 武汉天马微电子有限公司 | Flexible display device |
| CN110889995B (en) * | 2019-12-06 | 2021-05-11 | 徐宁 | Tourism geography teaching accessory plate |
| CN111145648A (en) * | 2019-12-31 | 2020-05-12 | 武汉天马微电子有限公司 | Flexible screen display module, display device and control method |
| CN111508364A (en) * | 2020-04-30 | 2020-08-07 | 合肥维信诺科技有限公司 | Flexible display device |
| CN111613139A (en) * | 2020-05-20 | 2020-09-01 | 武汉华星光电半导体显示技术有限公司 | Display device and electronic equipment |
| CN111583802B (en) * | 2020-05-22 | 2022-03-22 | 合肥维信诺科技有限公司 | Flexible display device |
| CN114902316B (en) * | 2020-06-30 | 2023-10-27 | 昆山国显光电有限公司 | Flexible display equipment and display system |
| CN112037660B (en) * | 2020-09-22 | 2022-06-24 | 京东方科技集团股份有限公司 | Display device |
| CN112887457B (en) * | 2021-01-21 | 2023-04-14 | 维沃移动通信有限公司 | Folding mechanism and electronic equipment |
| CN114049841B (en) * | 2021-11-15 | 2023-12-22 | 合肥维信诺科技有限公司 | Crimping and unfolding mechanism and flexible display device |
| US12105561B2 (en) | 2022-04-29 | 2024-10-01 | Suzhou China Star Optoelectronics Technology Co., Ltd. | Rollable display device |
| CN114708801B (en) * | 2022-04-29 | 2023-08-22 | 苏州华星光电技术有限公司 | rollable display device |
| CN115294874B (en) * | 2022-08-29 | 2023-12-05 | 京东方科技集团股份有限公司 | Slide roll display device |
| CN115578933B (en) * | 2022-10-27 | 2024-09-06 | 武汉天马微电子有限公司 | Flexible display device and electronic equipment |
| CN117781101B (en) * | 2023-12-28 | 2025-03-04 | 广州智会云科技有限公司 | Concealed lifting screen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442253A (en) * | 2015-11-09 | 2016-03-30 | 海信（山东）冰箱有限公司 | Roller washing machine |
| CN105979037A (en) * | 2016-07-08 | 2016-09-28 | 广东欧珀移动通信有限公司 | Flexible screen supporting structure, flexible display screen module and mobile terminal |
| CN106302885A (en) * | 2016-09-28 | 2017-01-04 | 珠海凯邦电机制造有限公司 | Mobile terminal |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100818170B1 (en) * | 2007-03-13 | 2008-04-02 | 한국과학기술원 | Scroll type flexible display device and personal digital assistant with same |
| KR101780419B1 (en) * | 2011-02-15 | 2017-10-11 | 삼성디스플레이 주식회사 | Flexible display |
| CN205750635U (en) * | 2016-01-28 | 2016-11-30 | 联想(北京)有限公司 | Display device |
-
2017
- 2017-08-14 CN CN201710694210.9A patent/CN107256679B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442253A (en) * | 2015-11-09 | 2016-03-30 | 海信（山东）冰箱有限公司 | Roller washing machine |
| CN105979037A (en) * | 2016-07-08 | 2016-09-28 | 广东欧珀移动通信有限公司 | Flexible screen supporting structure, flexible display screen module and mobile terminal |
| CN106302885A (en) * | 2016-09-28 | 2017-01-04 | 珠海凯邦电机制造有限公司 | Mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107256679A (en) | 2017-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107256679B (en) | Foldable display device | |
| CN109819074B (en) | Terminal device | |
| CN112468623B (en) | Electronic equipment | |
| CN209731322U (en) | A kind of Folding screen expanding unit and terminal | |
| JP3230328U (en) | Folding tent with automatic awning structure | |
| EP2223825B1 (en) | Rain shielding device for use with an automobile | |
| JP7603139B2 (en) | Umbrella pole device, electric umbrella and telescopic device | |
| CN107170371B (en) | Flexible display capable of being folded and unfolded | |
| US10647377B2 (en) | Foldable vehicle | |
| CN110233918A (en) | A kind of Folding screen, Folding screen expanding unit and terminal | |
| CN112492780A (en) | Electronic device | |
| CN113176808B (en) | Electronic equipment and screen module | |
| CN112599009B (en) | Electronic device | |
| CN213424449U (en) | Electronic device | |
| CN109229429A (en) | A kind of boost motor expansion carrier rocket recyclable device | |
| TWI594638B (en) | Headphone | |
| CN114368480B (en) | Folded cascade unmanned aerial vehicle that possesses screw protection machanism | |
| CN113596205B (en) | Electronic device and method for controlling folding and unfolding screen of electronic device | |
| WO2020252816A1 (en) | Apparatus for expanding collapsible screen and terminal | |
| CN212484807U (en) | Flexible screen support and display device | |
| CN115704418A (en) | Hinge components and electronics | |
| CN112273878A (en) | Intelligent telescopic folding storage clothes hanger | |
| WO2023226982A1 (en) | Electronic device | |
| CN214480730U (en) | Electronic device | |
| CN204983891U (en) | Flexible tub of fixing device of tent support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |