CN114078392A - Display device - Google Patents
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- CN114078392A CN114078392A CN202111391162.9A CN202111391162A CN114078392A CN 114078392 A CN114078392 A CN 114078392A CN 202111391162 A CN202111391162 A CN 202111391162A CN 114078392 A CN114078392 A CN 114078392A
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- 238000004804 winding Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims description 65
- 230000008602 contraction Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
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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 discloses a display device, which is characterized by comprising: the side wall of the shell is provided with an opening, and an accommodating cavity is formed in the shell; a winding shaft disposed in the accommodating chamber; the flexible display panel comprises a first end and a second end which are oppositely arranged, the first end is wound on the winding shaft, the second end of the flexible display panel penetrates through the opening, and the flexible display panel comprises a light emergent surface; and the driving support system is positioned in the accommodating cavity and used for driving the winding shaft to rotate, driving the flexible display panel to extend to enable part of the flexible display panel to be exposed outside the shell, and supporting one side of the flexible display panel, which is deviated from the light emergent surface. The flexible display panel provided by the invention has the advantages that the flexible stability of the flexible display panel is improved, the flexible display panel can be supported, the problem that the flexible display panel sinks when being pulled out of the shell is prevented, and the display performance is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
At present, with the development of a flexible Organic Light Emitting diode Display (OLED) technology and the extreme experience that a foldable electronic device has both portability of a common electronic device and large-screen Display after being unfolded, the foldable electronic device has gradually become an important trend of mobile terminal development and has become an important field for competition of various large terminal manufacturers. The flexible display panel is a bendable and deformable display panel made of flexible materials, has the advantages of low power consumption, small size, portability, convenience in installation, convenience in transportation, various display modes, excellent display image quality and the like, is applied to portable electronic equipment and touch input equipment, can greatly improve the portability of the equipment, and has a wide development prospect. The flexible display panel has a far-reaching influence on the application of the novel mobile display device due to the deformable characteristic, and the flexible display panel can realize the transformation of various forms and different angles such as bending, folding and rolling by utilizing the characteristic, so that the flexible display panel is just the prospective display technology of the new generation.
The display device is realized by utilizing a rotating shaft, the flexible screen is curled on the rotating shaft and is contained in the shell, the flexible screen is drawn out of the shell when in use, and the flexible screen is contracted back into the shell when not in use. In the prior art, a driving element for driving the flexible screen to automatically stretch and retract is usually arranged in the flexible screen device, and in order to avoid that the driving element occupies a large space, one way is to use an electromagnetic driving element, however, in the process of driving the flexible screen to stretch and retract by the electromagnetic driving element, when electromagnetic interference exists outside the electromagnetic driving element, problems that the flexible screen is too long in stretching length, insufficient in stretching length, even cannot perform stretching and retracting actions, and the like may be caused, and the stretching stability is poor; the other type is that a piezoelectric ceramic piece is adopted, extension and contraction deformation are realized after the piezoelectric ceramic piece is electrified, a traveling wave is formed, and therefore the rotating shaft is driven to rotate to realize that the flexible screen stretches into the shell, but the piezoelectric ceramic piece is easy to age and wear, the extension and contraction deformation is different from the initial deformation, a stable traveling wave cannot be formed, and in addition, the flexible screen can be clamped in the shell of the display device due to the flexibility of the flexible screen after being extended. Of course, the two modes have the problem that the flexible screen sinks due to no support after the flexible screen is stretched, so that partial areas display unevenly and unsmooth touch feeling is caused.
Therefore, it is desirable to provide a display device capable of improving the expansion stability of the flexible screen and improving the sinking of the flexible screen.
Disclosure of Invention
In view of the above, the present invention provides a display device, which is used to improve the stretching stability of a flexible display panel, solve the problem of the flexible display panel sinking when being pulled out from a chassis, and improve the display performance.
The display device disclosed by the invention comprises:
the side wall of the shell is provided with an opening, and an accommodating cavity is formed in the shell;
a winding shaft disposed in the housing chamber;
the flexible display panel comprises a first end and a second end which are oppositely arranged, the first end is wound on the winding shaft, the second end of the flexible display panel penetrates through the opening, and the flexible display panel comprises a light emergent surface;
and the driving support system is positioned in the accommodating cavity and used for driving the winding shaft to rotate, driving the flexible display panel to extend to enable part of the flexible display panel to be exposed outside the shell and supporting one side of the flexible display panel departing from the light emergent surface.
Optionally, the drive support system comprises:
the driving device is positioned in the accommodating cavity, and an output shaft of the driving device is coaxial with the winding shaft;
a transmission engaged with an output shaft of the drive;
one end of the screen supporting device is fixedly connected with the transmission device, and the other end of the screen supporting device is rotatably connected with the second end of the flexible display panel; when the driving device drives the flexible display panel to extend to expose part of the flexible display panel outside the shell when in work, the screen supporting device supports one side of the flexible display panel, which is far away from the light emergent surface.
Optionally, a first gear is arranged on an output shaft of the driving device;
the transmission device includes: the screen supporting device comprises a first bevel gear and a transmission shaft, wherein a second bevel gear is arranged on the outer side of the transmission shaft, the first bevel gear is meshed with the first gear, the second bevel gear is meshed with the first bevel gear, and the screen supporting device is fixedly connected with the end part of the transmission shaft.
Optionally, the first bevel gear includes a first portion and a second portion that are fixedly connected, the first portion is a flat tooth, the second portion is a helical tooth, the first portion is engaged with the first gear, and the second portion is engaged with the second bevel gear.
Optionally, the screen supporting device comprises a first supporting rod and a second supporting rod which are connected in a rotating mode, the first supporting rod is fixedly connected with the transmission shaft, and the second supporting rod is connected with the second end of the flexible display panel in a rotating mode.
Optionally, the first support rod comprises a first horizontal part and a first connecting part which are connected, the first connecting part comprises a first arc-shaped edge, and the first arc-shaped edge protrudes out of the first horizontal part; the second support rod comprises a second horizontal part and a second connecting part which are connected, the second connecting part comprises a second arc-shaped edge, and the second arc-shaped edge protrudes out of the second horizontal part; the first connecting portion is rotatably connected with the second connecting portion, the first horizontal portion is fixedly connected with the transmission shaft, and the second horizontal portion is rotatably connected with the second end of the flexible display panel.
Optionally, in a first direction, thicknesses of the first horizontal portion and the second horizontal portion are equal, a sum of a thickness of the first connecting portion and a thickness of the second connecting portion is equal to a thickness of the first horizontal portion, and the first direction is perpendicular to an extending direction of the first support bar.
Optionally, one end of the first support rod, which is close to the transmission shaft, is provided with a through hole, and the transmission shaft is clamped with the through hole.
Optionally, the drive means comprises a servo motor.
Optionally, the drive support systems are two sets.
Optionally, one side of the flexible display panel facing away from the light emitting surface includes a flexible buffer layer.
Compared with the prior art, the display device provided by the invention at least realizes the following beneficial effects:
the display device comprises a shell, a winding shaft, a flexible display panel and a driving support system, wherein an opening is formed in the side wall of the shell, and an accommodating cavity is formed in the shell; a winding shaft disposed in the accommodating chamber; the flexible display panel comprises a first end and a second end which are oppositely arranged, the first end is wound on the winding shaft, the second end of the flexible display panel penetrates through the opening, and the flexible display panel comprises a light emergent surface; the driving support system is arranged, and the driving support system drives the winding shaft to rotate to drive the flexible display panel to extend to enable part of the flexible display panel to be exposed outside the shell and supports one side of the flexible display panel, which is far away from the light emitting surface.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a top view of a display device provided by the present invention, wherein the flexible display panel in fig. 1 is in a contracted state;
fig. 2 is a top view of another display device provided by the present invention, wherein the flexible display panel in fig. 2 is in an extended state;
FIG. 3 is a cross-sectional view taken along line A-A' of FIG. 1;
FIG. 4 is a cross-sectional view taken along line B-B' of FIG. 2;
FIG. 5 is a block diagram of a drive support system provided by the present invention;
FIG. 6 is a schematic plan view of a screen supporting device according to the present invention, wherein the screen supporting device is shown in a retracted state in FIG. 6;
FIG. 7 is a schematic plan view of another screen supporting device provided in the present invention, wherein the screen supporting device in FIG. 7 is in an extended state;
FIG. 8 is a schematic plan view of another screen supporting device provided in the present invention, wherein the screen supporting device in FIG. 8 is in an extended state;
FIG. 9 is a front view of the screen support apparatus of FIG. 7;
FIG. 10 is a top view of yet another drive support system provided by the present invention;
fig. 11 is a further sectional view taken along line B-B' of fig. 2.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 1 to 4, fig. 1 is a top view of a display device provided by the present invention, fig. 1 shows a flexible display panel in a contracted state, fig. 2 shows a top view of another display device provided by the present invention, fig. 2 shows a flexible display panel in an expanded state, fig. 3 shows a cross-sectional view along a-a 'in fig. 1, and fig. 4 shows a cross-sectional view along B-B' in fig. 2.
As shown in fig. 1 to 4, the display device 100 provided in the present embodiment includes: the device comprises a shell 1, wherein the side wall 2 of the shell 1 is provided with an opening 3, and an accommodating cavity 4 is arranged in the shell 1; a winding shaft 8 disposed in the housing chamber 4; the flexible display panel 5 comprises a first end 6 and a second end 7 which are oppositely arranged, the first end 6 is wound on a winding shaft 8, the second end 7 of the flexible display panel 5 penetrates through the opening 3, and the flexible display panel 5 comprises a light emergent surface 9; and the driving support system 10 is located in the accommodating cavity 4, and the driving support system 10 is used for driving the winding shaft 8 to rotate, driving the flexible display panel 5 to extend to expose part of the flexible display panel outside the shell 1, and supporting one side of the flexible display panel 5 departing from the light emergent surface 9.
Specifically, the flexible display panel 5 in the present invention may be an organic self-luminous display panel, and may of course be another display panel that can be wound around the winding shaft 8, which is not limited herein.
The housing 1 further includes a top plate 17 and a bottom plate 18, the top plate 17, the side wall 2 and the bottom plate 18 are connected to form the receiving cavity 4, in this embodiment, the housing 1 may be a cube, and of course, the housing 1 may also be in other shapes, which is not limited herein.
The first end 6 of the flexible display panel 5 of the present invention can be connected to the winding shaft 8 by clipping, adhering, etc., and is not limited herein.
It is understood that the second end 7 of the flexible display panel 5 has a frame, and the driving support system 10 can be rotatably connected with the second end 7, although the rotation connection mode is not limited herein, and may not necessarily be rotatably connected through a rotating shaft.
According to the invention, by arranging the driving support system 10, the driving support system 10 can support the flexible display panel 5 while driving the winding shaft 8 to rotate so as to extend the flexible display panel 5, so that the problem that the flexible display panel 5 sinks when being pulled out of the shell 1 is prevented, and the display performance is improved.
In some alternative embodiments, with continuing reference to fig. 3 and 4, and with continuing reference to fig. 3 and 4, the drive support system 10 includes: the driving device 11 is positioned in the containing cavity 4, and an output shaft of the driving device 11 is coaxial with the winding shaft 8; a transmission 12, wherein the transmission 12 is meshed with an output shaft of the driving device 11; a screen supporting device 13, one end of which is fixedly connected with the transmission device 12, and the other end of which is rotatably connected with the second end 7 of the flexible display panel 5; when the driving device 11 operates to drive the flexible display panel 5 to extend so that a portion of the flexible display panel is exposed outside the housing 1, the screen supporting device 13 supports a side of the flexible display panel 5 away from the light emitting surface 9.
It can be understood that the driving device 11 is located in the accommodating cavity 4 of the housing 1, and the output shaft of the driving device 11 is coaxial with the winding shaft 8, so that the output shaft of the driving device 11 can drive the winding shaft 8 to rotate simultaneously when rotating, and because the flexible display panel 5 is wound on the winding shaft 8, the output shaft of the driving device 11 can extend or contract the flexible display panel 5 simultaneously when rotating, as shown in fig. 3, the output shaft of the driving device 11 rotates clockwise, and simultaneously the winding shaft 8 also rotates clockwise, the flexible display panel 5 is wound on the winding shaft 8, and the flexible display panel 5 is completely contracted only in the housing 1; as shown in fig. 4, the output shaft of the driving device 11 rotates counterclockwise, and at the same time, the winding shaft 8 also rotates counterclockwise, the flexible display panel 5 is peeled off from the winding shaft 8, and the flexible display panel 5 is exposed outside the housing 1.
It can be understood that, the transmission device 12 is engaged with the output shaft of the driving device 11, one end of the screen supporting device 13 is fixedly connected with the transmission device 12, and the other end is rotatably connected with the second end 7 of the flexible display panel 5, so that when the driving device 11 works, the winding shaft 8 rotates simultaneously to drive the flexible display panel 5 to extend and expose part of the flexible display panel 5 outside the shell 1, and thus the flexible display panel 5 can extend and contract without an electromagnetic driving element or a piezoelectric ceramic piece, thereby improving the extension stability of the display device, and meanwhile, the screen supporting device 13 supports one side of the flexible display panel 5 departing from the light emitting surface 9, can support the flexible display panel 5, prevent the flexible display panel 5 from sinking when being drawn out of the shell 1, and improve the display performance.
In some alternative embodiments, with continuing reference to fig. 3, 4 and 5, fig. 5 is a block diagram of a drive support system provided by the present invention. A first gear 111 is arranged on an output shaft of the driving device 11; the transmission 12 includes: the screen supporting device comprises a first bevel gear 121 and a transmission shaft 122, wherein a second bevel gear 123 is arranged on the outer side of the transmission shaft 122, the first bevel gear 121 is meshed with the first gear 111, the second bevel gear 123 is meshed with the first bevel gear 121, and the screen supporting device 13 is fixedly connected with the end part of the transmission shaft 122.
Optionally, in order to ensure the stability of the transmission shaft 122, a groove for fixing the transmission shaft 122 may be disposed on the top plate 17 of the housing 1 and the bottom plate 18 of the housing 1, and the transmission shaft 122 is clamped in the groove to prevent the transmission shaft 122 from displacing in the rotation process, of course, the transmission shaft 122 is rotatably connected with the groove.
Fig. 5 shows that the output shaft of the driving device 11 is sleeved with the first gear 111, and certainly, the first gear 111 and the output shaft of the driving device 11 need to be fixedly connected, so that the first gear 111 rotates synchronously when the output shaft rotates, and the first gear 111 and the output shaft cannot move relatively, and if the first gear 111 and the output shaft move relatively, the transmission device 12 cannot be driven to rotate synchronously.
In fig. 5, the transmission device 12 includes a first bevel gear 121 engaged with the first gear 111, the first bevel gear 121 is engaged with a second bevel gear 123 disposed outside the transmission shaft 122, so that when the output shaft of the driving device 11 rotates, the first gear 111 rotates synchronously, since the first bevel gear 121 is engaged with the first gear 111, the first bevel gear 121 rotates synchronously, since the second bevel gear 123 is engaged with the first bevel gear 121, the second bevel gear 123 also rotates synchronously with the first bevel gear 121, and since the second bevel gear 123 is sleeved outside the transmission shaft 122, the transmission shaft 122 is driven to rotate synchronously while the second bevel gear 123 rotates, thereby realizing transmission.
When the driving device 11 works, the winding shaft 8 rotates simultaneously, the transmission device 12 drives the flexible display panel 5 to extend to enable part of the flexible display panel 5 to be exposed out of the shell 1, and the flexible display panel 5 is controlled to extend and contract through the driving device 11 and the transmission device 12, so that the flexible display panel is higher in extension stability.
In some alternative embodiments, with continued reference to fig. 3-5, in fig. 5 the first bevel gear 121 comprises a first portion 1211 and a second portion 1212 fixedly connected, the first portion 1211 being flat-toothed, the second portion 1212 being helical-toothed, the first portion 1211 being in mesh with the first gear 111, and the second portion 1212 being in mesh with the second bevel gear 123.
Alternatively, the first portion 1211 and the second portion 1212 may be a unitary structure.
It can be understood that the first portion 1211 and the second portion 1212 of the first bevel gear 121 are arranged along the horizontal direction, and the first portion 1211 is engaged with the first gear 111, and the second portion 1212 is engaged with the second bevel gear 123, because the moving directions of the first gear 111 and the second bevel gear 123 are different, wherein the rotating direction of the first gear 111 is perpendicular to the plane of the top plate 17 of the housing 1, and the rotating direction of the second bevel gear 123 is parallel to the plane of the top plate 17 of the housing 1, it is necessary to use the bevel gears to change the direction, and the first bevel gear 121 plays a role in changing the transmission direction.
In the embodiment, the transmission direction is changed through the first bevel gear 121, and when the output shaft of the driving device 11 rotates, the transmission shaft 122 can be controlled to rotate through the first gear 111, the first bevel gear 121 and the second bevel gear 123 which are engaged in sequence, and of course, when the transmission shaft 122 rotates, the screen supporting device 13 can support the flexible display panel 5.
In some alternative embodiments, with continuing reference to fig. 3-5, and with further reference to fig. 6 and 7, fig. 6 is a schematic plan view of a screen supporting device provided by the present invention, fig. 6 shows the screen supporting device in a retracted state, fig. 7 shows a schematic plan view of another screen supporting device provided by the present invention, fig. 7 shows the screen supporting device in an extended state, the screen supporting device 13 includes a first supporting rod 131 and a first supporting rod 132 which are rotatably connected, the first supporting rod 131 is fixedly connected with the transmission shaft 122, and the first supporting rod 132 is rotatably connected with the second end 7 of the flexible display panel 5.
The first supporting rod 131 and the first supporting rod 132 of the screen supporting device 13 can be rotatably connected through a rotating shaft, but may also be rotatably connected in other manners, and is not limited in this respect.
It is noted that the drive means 11 and the transmission means 12 are not shown in fig. 6 and 7.
As can be seen from fig. 5, the first supporting rod 131 is connected to the transmission shaft 122, the optional first supporting rod 131 is connected to one side of the transmission shaft 122 close to the top plate 17 of the housing 1, and the other end is connected to the first supporting rod 132, so that when the transmission shaft 122 is driven by the driving device 11 to rotate, the first supporting rod 131 is synchronously driven to rotate, and the retracted state in fig. 6 is switched to the extended state in fig. 7, and the first supporting rod 131 and the first supporting rod 132 can support one side of the flexible display panel 5 away from the light exit surface 9, thereby supporting the flexible display panel 5 when the flexible display panel 5 is extended, preventing the flexible display panel 5 from being pulled out of the housing 1 and causing a sinking problem, and improving the display performance.
In some alternative embodiments, with continuing reference to fig. 5, 6, 7 and 8, fig. 8 is a schematic plan view of still another screen supporting device provided by the present invention, in fig. 8, the screen supporting device is in an extended state, the first supporting rod 131 includes a first horizontal portion 1311 and a first connecting portion 1312, the first connecting portion 1312 includes a first arc-shaped edge, and the first arc-shaped edge protrudes from the first horizontal portion 1311; the first support rod 132 includes a second horizontal portion 1321 and a second connecting portion 1322 connected to each other, and the second connecting portion 1322 includes a second arc-shaped edge protruding from the second horizontal portion 1321; the first connecting portion 1312 is rotatably connected to the second connecting portion 1322, the first horizontal portion 1311 is fixedly connected to the transmission shaft 122, and the second horizontal portion 1321 is rotatably connected to the second end 7 of the flexible display panel 5.
It should be noted that the driving device 11 and the transmission device 12 are not shown in fig. 8, and the first horizontal portion 1311 in fig. 8 may be connected to the transmission shaft 122 in fig. 5.
Specifically, the first horizontal portion 1311 of the first support bar 131 is fixedly connected to the transmission shaft 122, the first connection portion 1312 of the first support bar 131 protrudes out of the first horizontal portion 1311, the first connection portion 1312 has a first arc-shaped edge, the second connection portion 1322 of the first support bar 132 is rotatably connected to the first connection portion 1312 of the first support bar 131, the second horizontal portion 1321 of the first support bar 132 is rotatably connected to the second end 7 of the display panel, optionally, the second connection portion 1322 of the first support bar 132 is rotatably connected to the first connection portion 1312 of the first support bar 131 through a rotation shaft, and certainly, the second connection portion 1322 may be rotatably connected through another structure.
Alternatively, here, the first horizontal portion 1311 and the first connection portion 1312 may be an integral structure, and the second horizontal portion 1321 and the second connection portion 1322 may be an integral structure, which is convenient for fabrication.
When the flexible display panel 5 is retracted in the housing 1, the screen supporting device 13 is not needed to support the flexible display panel 5, so the first supporting rod 131 and the first supporting rod 132 can be folded into the state shown in fig. 6, that is, the first horizontal portion 1311 of the first supporting rod 131 and the second horizontal portion 1321 of the first supporting rod 132 are parallel, the first supporting rod 131 and the first connecting portion 1312 are at least partially non-overlapped with the second connecting portion 1322 of the first supporting rod 132 in a direction perpendicular to the plane of the top plate 17 of the housing 1, when the flexible display panel 5 is exposed outside the housing 1, the first supporting rod 131 and the first supporting rod 132 need to be unfolded, the first horizontal portion 1311 of the first supporting rod 131 is connected to the transmission shaft 122, the first horizontal portion 1311 of the first supporting rod 131 is rotated by the driving of the transmission shaft 122, and the first horizontal portion 1311 is rotated in a direction perpendicular to the plane of the top plate 17 of the housing 1, the first connection portion 1312 of the first support bar 131 and the second connection portion 1322 of the first support bar 132 overlap, and at this time, the first horizontal portion 1311 of the first support bar 131 and the second horizontal portion 1321 of the first support bar 132 are aligned, and the first support bar 131 and the first support bar 132 are completely unfolded to support the flexible display panel 5.
It should be noted that the first connecting portion 1312 has a first arc-shaped edge, and the second connecting portion 1322 has a second arc-shaped edge, so that the first connecting portion 1312 and the second connecting portion 1322 can be prevented from being jammed during the contraction of the first support rod 131 and the first support rod 132, and the first support rod 131 and the first support rod 132 can not be contracted.
In some alternative embodiments, with continuing reference to fig. 5, 7 and 9, fig. 9 is a front view of the screen supporting device in fig. 7, in a first direction X, the thicknesses of the first horizontal portion 1311 and the second horizontal portion 1321 are equal, the sum of the thickness of the first connecting portion 1312 and the thickness of the second connecting portion 1322 is equal to the thickness of the first horizontal portion 1311, and the first direction X is perpendicular to the extending direction of the first supporting rod 131.
Referring to fig. 9, the first horizontal portion 1311 of the first support bar 131 is fixedly connected to the transmission shaft 122, the first connection portion 1312 of the first support bar 131 protrudes from the first horizontal portion 1311, the first connecting portion 1312 has a first arc-shaped edge, the second connecting portion 1322 of the first supporting rod 132 is pivotally connected to the first connecting portion 1312 of the first supporting rod 131, the second horizontal portion 1321 of the first supporting rod 132 is pivotally connected to the second end 7 of the display panel, the thickness of the first level part 1311 in the first direction and the thickness of the second level part 1321 in the first direction are equal, while the sum of the thickness of the first connection portion 1312 and the thickness of the second connection portion 1322 is equal to the thickness of the first horizontal portion 1311, this can ensure that the upper surfaces of the first support rods 131 and 132 are on the same horizontal plane, and prevent the flexible display panel 5 from being scratched by the uneven portions of the upper surfaces of the first support rods 131 and 132 during rotation.
In this embodiment, since the thickness of the first horizontal portion 1311 in the first direction X is equal to the thickness of the second horizontal portion 1321 in the first direction, and the sum of the thickness of the first connecting portion 1312 and the thickness of the second connecting portion 1322 is equal to the thickness of the first horizontal portion 1311, when the first connecting portion 1312 and the second connecting portion 1322 are connected through the rotating shaft, the connecting position does not protrude from the first horizontal portion 1311 (and the second horizontal portion 1321) in the first direction X, no protrusion scratches on the flexible display panel 5 occur, and the service life of the display device 100 is prolonged.
In some alternative embodiments, with continued reference to fig. 5, the end of the first support rod 131 near the transmission shaft 122 has a through hole 14, and the transmission shaft 122 is engaged with the through hole 14.
One end of the first support rod 131 has a through hole 14, and the transmission shaft 122 penetrates through the through hole 14 to be engaged therewith, where the transmission shaft 122 needs to be fixedly connected with the first support rod 131.
The first support rod 131 is fixedly connected to one side of the transmission shaft 122 close to the top plate 17 of the housing 1 through the through hole 14, and the other end of the transmission shaft 122 is connected to the first support rod 132, so that when the transmission shaft 122 is driven by the driving device 11 to rotate, the first support rod 131 is driven to rotate synchronously, and the contraction state is switched to the extension state, or the extension state is switched to the contraction state. In this embodiment, the first supporting rods 131 and 132 can support one side of the flexible display panel 5 away from the light emitting surface 9, so that the flexible display panel 5 is supported when the flexible display panel 5 is stretched, the flexible display panel 5 is prevented from being drawn out of the housing 1 to cause a sinking problem, and the display performance is improved.
In some alternative embodiments, with continued reference to fig. 3 and 4, the drive means 11 comprises a servo motor (not shown).
The driving device 11 of the invention can be a servo motor, the output shaft of the servo motor is coaxial with the winding shaft 8, so that the output shaft of the servo motor can drive the winding shaft 8 to rotate when rotating, and the flexible display panel 5 can extend or contract when the output shaft of the servo motor rotates because the flexible display panel 5 is wound on the winding shaft 8.
In some alternative embodiments, referring to fig. 10, fig. 10 is a top view of another driven support system provided by the present invention, and the driven support systems 10 are two groups.
The screen supporting means 13 of the drive support system 10 in fig. 10 is in a retracted state. It should be noted that the two driving support systems 10 in fig. 10 are applicable to any of the above embodiments, and are not described herein again. Of course, the two sets of driving support systems 10 need to work synchronously, i.e. the driving devices 11 (or servo motors) of the driving support systems 10 rotate synchronously. The two groups of driving and supporting systems 10 work synchronously, so that the winding shaft can be more stable in rotation, the flexible display panel 5 can be more stable in extension and contraction, and the two groups of driving and supporting systems 10 are arranged to better support the flexible display panel 5, so that the problem that the flexible display panel 5 sinks after being extended is further solved.
In some alternative embodiments, referring to fig. 11, fig. 11 is a cross-sectional view taken along line B-B' of fig. 2, and the side of the flexible display panel facing away from the light emitting surface 9 includes a flexible buffer layer 16.
Optionally, a soft, light and thin memory cotton material may be disposed on a side of the flexible display panel 5 away from the light emitting surface 9, and of course, the flexible buffer layer 16 may also be made of other materials.
In this embodiment, the flexible buffering energy is arranged on the side of the flexible display panel 5 departing from the light emergent surface 9, so that the flexible display panel 5 can be prevented from being worn in the contraction and extension processes, and the appearance and the service life of the flexible display panel 5 are affected.
As can be seen from the above embodiments, the display device provided by the present invention at least achieves the following beneficial effects:
the display device comprises a shell, a winding shaft, a flexible display panel and a driving support system, wherein an opening is formed in the side wall of the shell, and an accommodating cavity is formed in the shell; a winding shaft disposed in the accommodating chamber; the flexible display panel comprises a first end and a second end which are oppositely arranged, the first end is wound on the winding shaft, the second end of the flexible display panel penetrates through the opening, and the flexible display panel comprises a light emergent surface; the driving support system is arranged, and the driving support system drives the winding shaft to rotate to drive the flexible display panel to extend to enable part of the flexible display panel to be exposed outside the shell and supports one side of the flexible display panel, which is far away from the light emitting surface.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (11)
1. A display device, comprising:
the side wall of the shell is provided with an opening, and an accommodating cavity is formed in the shell;
a winding shaft disposed in the housing chamber;
the flexible display panel comprises a first end and a second end which are oppositely arranged, the first end is wound on the winding shaft, the second end of the flexible display panel penetrates through the opening, and the flexible display panel comprises a light emergent surface;
and the driving support system is positioned in the accommodating cavity and used for driving the winding shaft to rotate, driving the flexible display panel to extend to enable part of the flexible display panel to be exposed outside the shell and supporting one side of the flexible display panel departing from the light emergent surface.
2. The display device of claim 1, wherein the drive support system comprises:
the driving device is positioned in the accommodating cavity, and an output shaft of the driving device is coaxial with the winding shaft;
a transmission engaged with an output shaft of the drive;
one end of the screen supporting device is fixedly connected with the transmission device, and the other end of the screen supporting device is rotatably connected with the second end of the flexible display panel; when the driving device drives the flexible display panel to extend to expose part of the flexible display panel outside the shell when in work, the screen supporting device supports one side of the flexible display panel, which is far away from the light emergent surface.
3. The display device according to claim 2, wherein the output shaft of the driving device is provided with a first gear;
the transmission device includes: the screen supporting device comprises a first bevel gear and a transmission shaft, wherein a second bevel gear is arranged on the outer side of the transmission shaft, the first bevel gear is meshed with the first gear, the second bevel gear is meshed with the first bevel gear, and the screen supporting device is fixedly connected with the end part of the transmission shaft.
4. The display device according to claim 3, wherein the first bevel gear comprises a first portion and a second portion fixedly connected, the first portion is a flat tooth, the second portion is a helical tooth, the first portion is engaged with the first gear, and the second portion is engaged with the second bevel gear.
5. The display device according to claim 3, wherein the screen supporting device comprises a first supporting rod and a second supporting rod which are rotatably connected, the first supporting rod is fixedly connected with the transmission shaft, and the second supporting rod is rotatably connected with the second end of the flexible display panel.
6. The display device according to claim 5, wherein the first support bar includes a first horizontal portion and a first connection portion connected thereto, the first connection portion including a first arc-shaped edge protruding from the first horizontal portion; the second support rod comprises a second horizontal part and a second connecting part which are connected, the second connecting part comprises a second arc-shaped edge, and the second arc-shaped edge protrudes out of the second horizontal part; the first connecting portion is rotatably connected with the second connecting portion, the first horizontal portion is fixedly connected with the transmission shaft, and the second horizontal portion is rotatably connected with the second end of the flexible display panel.
7. The display device according to claim 6, wherein the first horizontal portion and the second horizontal portion have the same thickness in a first direction, a sum of the thickness of the first connecting portion and the thickness of the second connecting portion is equal to the thickness of the first horizontal portion, and the first direction is perpendicular to an extending direction of the first support bar.
8. The display device according to claim 5, wherein the first support rod has a through hole at an end thereof adjacent to the transmission shaft, and the transmission shaft is engaged with the through hole.
9. A display device as claimed in claim 2, characterized in that the drive means comprise a servo motor.
10. The display device of claim 1, wherein the drive support systems are two groups.
11. A display device as claimed in claim 1, wherein a side of the flexible display panel facing away from the light exit surface comprises a flexible buffer layer.
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| CN202111391162.9A CN114078392A (en) | 2021-11-23 | 2021-11-23 | Display device |
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| CN202111391162.9A CN114078392A (en) | 2021-11-23 | 2021-11-23 | Display device |
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