CN113851052B - Sliding screen rolling mechanism and display device - Google Patents
Sliding screen rolling mechanism and display device Download PDFInfo
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- CN113851052B CN113851052B CN202111147602.6A CN202111147602A CN113851052B CN 113851052 B CN113851052 B CN 113851052B CN 202111147602 A CN202111147602 A CN 202111147602A CN 113851052 B CN113851052 B CN 113851052B
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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 application discloses a sliding screen rolling mechanism and a display device, comprising a first winding piece and a display screen, wherein the first winding piece is used for rolling up the display screen when rotating along a first direction or releasing the display screen when rotating along a second direction; the second winding member is used for releasing the screen protective film when rotating in the first direction or winding up the screen protective film when rotating in the second direction; the first winding member is also connected to an end of the screen protector for releasing the screen protector when rotated in a first direction or winding up the screen protector when rotated in a second direction. When the first winding piece winds the display screen, the second winding piece releases the screen protection film, the first winding piece winds the screen protection film and the display screen simultaneously, and the display surface of the display screen is protected by the screen protection film, so that the display screen can be prevented from being rubbed and extruded by other structures such as crawler wheels, and the service life of the display screen can be prolonged.
Description
Technical Field
The application relates to the technical field of flexible screens, in particular to a screen sliding and rolling mechanism and a display device.
Background
The flexible screen has the characteristics of being bendable, curled and the like, can accommodate more display area in a smaller volume, and is deeply favored by science and technology control; currently, a mobile phone with an inner fold and an outer fold is marketed in batches, a slide roll and a curl display device are next detonation points, and how to accommodate more screens in a limited space and how to spread the screens more smoothly is a problem considered.
On middle-size and large-size smooth roll equipment, because the whole surface roughness of screen is to be guaranteed, the screen support piece that must use is thicker, and the rebound force of module can strengthen this moment, and on the one hand the screen surface receives synchronous track friction when sliding the roll, on the other hand can wholly upwards rise at smooth roll district screen, influences the display effect to after repeated cyclic use, easily cause the uneven problem that produces fracture failure of screen atress.
Disclosure of Invention
In view of the foregoing drawbacks or shortcomings in the prior art, it is desirable to provide a sliding roller screen mechanism and a display device.
In a first aspect, a sliding roller screen mechanism is provided, comprising:
the first winding piece is connected with the first end of the display screen and is used for winding up the display screen when rotating in a first direction or releasing the display screen when rotating in a second direction, and the first direction and the second direction are opposite;
a second winding member on which a screen protective film is wound for releasing the screen protective film when rotated in a first direction or for winding up the screen protective film when rotated in a second direction;
the first winding member is also connected to an end of the screen protector for releasing the screen protector when rotated in a first direction or winding up the screen protector when rotated in a second direction.
In a second aspect, a display device is provided, including the above-mentioned sliding screen rolling mechanism.
According to the technical scheme provided by the embodiment of the application, the first winding piece and the second winding piece are arranged on the screen sliding and winding mechanism, the display screen is wound through the first winding piece, the screen protecting film is wound through the second winding piece, when the first winding piece winds the display screen, the second winding piece releases the screen protecting film, the first winding piece winds the screen protecting film and the display screen simultaneously, the display surface of the display screen is protected through the screen protecting film, friction and extrusion of other structures such as crawler wheels and the like can be avoided, and the service life of the display screen can be prolonged.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of a sliding roller screen mechanism in the present embodiment;
FIG. 2 is a partial schematic view showing an unreeled state of a first winding member of a screen sliding mechanism according to the present embodiment;
fig. 3 is a partial schematic view showing a winding state of a first winding member of the screen sliding and winding mechanism in the present embodiment.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1, the present embodiment provides a sliding and rolling screen mechanism, including:
a first winding member 1 and a display screen 2, wherein the first winding member 1 is connected to a first end of the display screen 2, and is used for winding up the display screen 2 when rotating in a first direction or releasing the display screen 2 when rotating in a second direction, and the first direction and the second direction are opposite directions;
a second winding member 3 on which a screen protector 4 is wound for releasing the screen protector 4 when rotated in a first direction or winding up the screen protector 4 when rotated in a second direction;
the first winding member 1 is also connected to an end portion of the screen protector 4 for releasing the screen protector 4 when rotated in a first direction or winding up the screen protector 4 when rotated in a second direction.
Wherein, through setting up first coiling piece 1 and second coiling piece 3 on this smooth screen mechanism of rolling up, coil display screen 2 through first coiling piece 1, coil screen protection film 4 through second coiling piece 3, when first coiling piece 1 coils display screen 2, second coiling piece 3 releases screen protection film 4 this moment, first coiling piece 1 coils screen protection film 4 and display screen 2 simultaneously, protect the display surface of display screen 2 through screen protection film 4, can avoid display screen 2 to receive friction and the extrusion of other structures such as crawler wheel, can prolong the life of display screen 2.
As shown in fig. 1, in this embodiment, a first winding member 1 and a second winding member 3 are respectively provided to wind a display screen 2 and a screen protective film 4, where the screen protective film 4 is made of a flexible polymer material, and is required to have a certain supporting property, and has characteristics of static electricity prevention, low film tearing voltage, etc., the screen protective film 4 is wound and released by the second winding member 3, the display screen 2 and the screen protective film 4 are simultaneously wound and released by the first winding member 1, when the first winding member 1 winds the display screen 2, the screen protective film 4 is required to be wound by the first winding member 1 at the moment, and each layer of wound display screen 2 is required to be protected by the screen protective film 4, and at the moment, the second winding member 3 is required to release the screen protective film 4 so that the screen protective film 4 can be wound by the first winding member 1 and protect the display screen 2; when the screen is curled, the first winding piece 1 drives the display screen 2 to be curled and wound, and meanwhile, the second winding piece 3 synchronously releases the screen protection film 4, so that the screen protection film 4 is positioned between the crawler and the surface layer of the screen, the surface of the screen is prevented from being extruded and rubbed by the crawler, the surface of the screen is more uniformly stressed, GDS (graphic display) is prevented from being generated due to local stress, and the service life of the screen is prolonged; when the first winding piece 1 and the right sliding wheel set 5 are unfolded, different sizes can be stretched respectively according to the requirements.
In this embodiment, rollers are preferably used as the first winding member 1 and the second winding member 3, and the winding and unwinding of the display screen 2 are controlled by controlling the rotation direction and the rotation speed of the rollers, and other structures, such as a rotating shaft, may be used for the first winding member 1 and the second winding member 3; in this embodiment, the first direction of the first winding member 1 and the second winding member 3 is counterclockwise, and the second direction is clockwise, which are both exemplified by the structure and arrangement in fig. 1.
The length of the screen protecting film 4 is preferably set to be close to the length of the display screen 2 in the present embodiment so that the screen protecting film 4 has a sufficient length to support and protect the display screen 2 after the display screen 2 is wound by the first winding member 1.
Further, the first winding part 1 is a rotating wheel, a transition part 11 is arranged on the winding surface of the rotating wheel,
one end of the transition part 11 is attached to the end face of the display screen 2, and one face of the display screen 2 far away from the rotating wheel is smoothly transited to the winding face of the rotating wheel through the transition part 11.
As shown in fig. 2, the first winding member 1 is a rotating wheel, the outer circumferential surface of which is a winding surface, and a transition portion 11 is provided on the winding surface, wherein the transition portion 11 is mainly used for realizing smooth transition between the display screen 2 connected to the first winding member 1 and the winding surface, and since the display screen 2 has a certain thickness, the end surface of the display screen 2 has a height difference, and the display screen 2 is prevented from generating a pressing force at the position of the end surface of the display screen 2 after winding, so that the display screen 2 is easy to be pressed and damaged when winding at the end surface position; one end of the transition part 11 is attached to the end face of the display screen 2, so that no gap is reserved at the end face position when the display screen 2 is wound, the surface of the transition part 11 is preferably a smooth surface and is connected with the winding face of the rotating wheel, and smooth transition between the display screen 2 and the winding face of the rotating wheel is realized;
wherein, the transition part 11 is preferably arranged not to exceed half of the peripheral surface of the rotating wheel, and the connection between the screen protecting film 4 and the rotating wheel is not affected; the thickness of the screen protective film 4 is half as thin as 50 microns, the influence of the end face thickness on the display screen 2 can be eliminated, if the screen protective film 4 with larger thickness is needed in the practical application process, the same structure as the transition part 11 can be provided on the peripheral surface of the rotating wheel, the smooth transition between the screen protective film 4 and the winding surface of the rotating wheel can be realized through the other transition part 11, or the outer surface of the rotating wheel can be cut to a certain extent, a step surface is formed on the outer surface of the rotating wheel, the step surface is used for fixing the screen protective film 4, the step surface is as high as the screen protective film 4, and the smooth transition between the screen protective film 4 and the winding surface of the rotating wheel can be realized.
Further, the height of the end of the transition portion 11 attached to the display screen 2 is the same as the height of the display screen 2.
In order to realize smooth transition between the surface of the display screen 2 and the winding surface of the first winding member 1, so that the end surface of the display screen 2 does not have any influence on the wound display screen 2, the height of the transition part 11 attached to one end of the display screen 2 is set to be the same as the end surface of the display screen 2, wherein the height of the transition part 11 and the height of the display screen 2 are both a fixed point, for example, the distance between the winding center point of the first winding member is the same, so that the transition from the surface of the display screen 2 to the transition part 11 is smooth, and no height difference is generated from the display screen 2 to the transition part 11.
Further, the display screen 2 includes a flexible display module 21, a supporting layer 22 is adhered to a side, far away from the display surface, of the flexible display module 21, and a first crawler 23 is disposed on a side, far away from the flexible display module 21, of the supporting layer 22.
Fig. 3 is a schematic structural diagram of the first winding member 1 after winding, in which the structure of the display screen 2 is shown, the display screen 2 includes a flexible display module 21 and a supporting layer 22, the flexible display module 21 is supported by the supporting layer 22 to a certain extent, a first crawler 23 is disposed on a side of the supporting layer 22 far away from the flexible display module 21, and the first crawler 23 cooperates with other crawlers to control winding of the display screen 2.
Further, when the display screen 2 is wound up by the first winding member 1, the screen protective film 4 is positioned between the first crawler 23 and the display screen 2.
In this embodiment, the display surface of the rolled display screen 2 is protected by the screen protection film 4, and when the display screen 2 is rolled by the first rolling member 1, the screen protection film 4 is also rolled by the first rolling member 4 at the same time to form a structure as shown in fig. 1 or fig. 3, and at this time, the screen protection film 4 is located between the first crawler 23 and the display screen 2, so as to protect the display surface of the display screen 2, and prevent the first crawler 23 from pressing or wearing the display surface.
Further, a flexible magnet coating 24 is further disposed on a side of the display screen 2 away from the display surface, and the flexible magnet coating 24 is disposed between the first crawler 23 and the supporting layer 22.
In this embodiment, a flexible magnet coating 24 is further disposed on the display screen 2, and the coating can be combined with a magnet and other structures to realize the adsorption to the display screen 2; wherein the flexible magnet coating 24 may be disposed between the first track 23 and the support layer 22 (this is not shown in the drawings), the arrangement of the whole layer is capable of enhancing the adsorption effect on the display screen 2.
Further, the side of the display screen 2 far away from the display surface is also provided with a flexible magnet coating 24, which comprises a plurality of sub-flexible magnet coatings arranged at intervals,
the first track 23 includes a plurality of first protrusions disposed at intervals, and each of the sub-flexible magnet coatings 24 is disposed between adjacent ones of the first protrusions.
In this embodiment, a flexible magnet coating 24 is further disposed on the display screen 2, and the coating can be combined with a magnet and other structures to realize the adsorption to the display screen 2; the first crawler 23 is composed of a plurality of first protrusions with a certain interval between adjacent first protrusions, so that the flexible magnet coating 24 can be set into a plurality of sub flexible magnet coatings with intervals, each sub flexible magnet coating is set in the interval between the adjacent first protrusions, the structure as shown in fig. 3 is formed, the adsorption of the magnet material to the display screen 2 can be realized, and the thickness of the flexible magnet coating 24 can be saved, so that the magnetic adsorption function can be realized while the thickness of the whole display screen 2 is not increased.
Further, the device also comprises a sliding wheel set 5, and a second crawler belt 51 matched with the first crawler belt 23 is arranged on the outer circumferential surface of the sliding wheel set 5.
As shown in fig. 1, in this embodiment, a sliding wheel set 5 is further provided, and a second crawler belt 51 is disposed on the outer peripheral surface of the sliding wheel set 5, and the second crawler belt 51 is matched with the first crawler belt 23, so as to implement winding of the display screen 2 through the sliding wheel set 5 structure; the sliding wheel set 5 is matched with the first winding piece 1, so that the display screen 2 can be stretched and contracted in two directions, the size is larger, more screens can be curled, and the display screen can be used for medium-size and large-size products.
Optionally, the second track 51 includes a plurality of second protrusions disposed at intervals, and each of the first protrusion longitudinal section and each of the second protrusion longitudinal section is trapezoidal, triangular or rectangular.
The first track 23 and the second track 51 adopted in this embodiment are formed by a plurality of protrusions arranged at intervals, and the second track 51 includes a plurality of second protrusions, where the longitudinal section shapes of the first protrusions and the second protrusions may be various, for example, trapezoidal, triangular or rectangular, and can realize the cooperation rotation.
Further, the sliding wheel set 5 includes at least two sliding wheels, and at least two sliding wheels are arranged in parallel along the moving direction of the display screen 2;
a magnetic attraction device is arranged between the adjacent sliding wheels, and the adsorption surface of the magnetic attraction device is arranged towards the display surface of the display screen 2 and is used for adsorbing the flexible magnet coating 24.
As shown in fig. 1, in this embodiment, at least two sliding wheel sets 5 are adopted to form a sliding wheel set 5 to implement winding of the display screen 2, and the outer circumferential surface of the sliding wheel set 5 formed by the at least two sliding wheel sets 5 is provided with a second crawler belt 51, and the contact matching surface of the second crawler belt with the first crawler belt 23 is larger, so that the maintenance of the surface flatness of the display screen 2 is facilitated;
meanwhile, a magnetic attraction device is arranged between the sliding wheels, the magnetic attraction device can adsorb the flexible magnet coating 24 on the display screen 2, the phenomenon that the display screen 2 at the curling position of the sliding wheels bulges upwards due to the self-deflection of the display screen 2 in an arc area can be overcome, and the flatness and flatness of the surface of the display screen 2 are ensured.
Further, the display screen 2 further comprises a third winding member 7, wherein a supporting film 8 is wound on the third winding member 7, the supporting film 8 is fixedly connected with the display screen 2, and the third winding member 7 is used for releasing the supporting film 8 when rotating in a first direction or winding up the supporting film 8 when rotating in a second direction.
In this embodiment, in order to ensure the flatness of the display screen 2, a support film 8 is further added, one end of the support film 8 is fixedly connected with the display screen 2, and the other end is wound and fixed by a third winding device, the third winding device winds or releases the support film 8 according to the situation, so that the support film 8 can be tensioned, and further the display screen 2 is tensioned, wherein the first direction of rotation of the third winding device refers to a counterclockwise direction, and the second direction refers to a clockwise direction, which is similar to the situation of the first winding piece 1;
the support film 8 is adhered to different positions of the display screen 2 according to actual conditions, and is fixed with the display screen 2.
Further, the rotation direction of the first winding member 1 is the same as the rotation direction of the second winding member 3.
In this embodiment, the first winding member 1 is required to wind the screen protection film 4 at the same time when the first winding member 1 winds the display screen 2, and therefore, the second winding member 3 is required to release the second winding member 3 at the same time, and therefore, the winding direction of the first winding member 1 is set to be the same as the winding direction of the second winding member 3, so that the purpose of synchronously winding the screen protection film 4 and the display screen 2 is achieved.
Further, the first winding member 1 is connected to the first housing 91, and the second housing 92 is connected to the sliding wheel set 5, and the first housing 91 and the second housing 92 are movable in a direction toward or away from each other.
As shown in fig. 1, the mechanism provided in this embodiment further includes a first housing 91 and a second housing 92, the two housings can be abutted against or separated from each other, the first winding member 1 is connected to the first housing 91, the sliding wheel set 5 is connected to the second housing 92, when the first housing 91 and the second housing 92 move close to each other, the sliding wheel set 5 and the first winding member 1 wind the display screen 2 respectively, when the first housing 91 and the second housing 92 move away from each other, the sliding wheel set 5 and the first winding member 1 release the display screen 2 respectively, at this time, the area of the external display screen 2 becomes large, and when the wound display screen 2 bends and releases, at this time, the area of the external display screen 2 is maximum; the structure can realize the biaxial stretching of the display screen 2, and can be applied to large-size products.
The embodiment also provides a display device which comprises the screen sliding and rolling mechanism.
The display device in the embodiment can accommodate more screen sizes in a limited body space by adopting the mechanism; also, the display device involved may be any form of display device, such as a tablet computer, a screen wall device, or the like.
It is to be understood that the above references to the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are for convenience in describing the present application and simplifying the description only, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Claims (12)
1. A roll-up screen mechanism, comprising:
the first winding piece is connected with the first end part of the display screen and is used for winding the display screen when rotating along a first direction or releasing the display screen when rotating along a second direction, the first direction is opposite to the second direction, the first winding piece is a rotating wheel, a transition part is arranged on a winding surface of the rotating wheel,
one end of the transition part is attached to the end face of the display screen, one surface of the display screen, which is far away from the rotating wheel, is smoothly transited to the winding surface of the rotating wheel through the transition part, and the transition part is not more than half of the peripheral surface of the rotating wheel;
a second winding member on which a screen protective film is wound for releasing the screen protective film when rotated in a first direction or for winding up the screen protective film when rotated in a second direction;
the first winding piece is also connected with the end part of the screen protection film and is used for releasing the screen protection film when rotating in a first direction or winding up the screen protection film when rotating in a second direction;
the sliding wheel set comprises at least two sliding wheels, and the at least two sliding wheels are arranged in parallel along the moving direction of the display screen;
the third winding piece is used for releasing the support film when rotating along a first direction or rolling up the support film when rotating along a second direction, and one end of the support film is fixedly connected with the display screen and used for tensioning the display screen.
2. The roll-up mechanism of claim 1, wherein the height of the end of the transition portion that engages the display screen is the same as the height of the display screen.
3. The screen sliding and rolling mechanism according to any one of claims 1-2, wherein the display screen comprises a flexible display module, a supporting layer is adhered to one side of the flexible display module, which is far away from the display surface, and a first crawler is arranged on one side of the supporting layer, which is far away from the flexible display module.
4. The roll-up screen mechanism of claim 3, wherein the screen saver film is positioned between the first track and the display screen when the display screen is rolled up by the first winder.
5. The roll-up screen mechanism of claim 3, wherein the side of the display screen remote from the display surface is further provided with a flexible magnet coating, the flexible magnet coating being disposed between the first track and the support layer.
6. The screen sliding and rolling mechanism according to claim 3, wherein the side of the display screen far from the display surface is further provided with a flexible magnet coating, the flexible magnet coating comprises a plurality of sub flexible magnet coatings which are arranged at intervals,
the first track includes a plurality of first protrusions disposed in spaced relation, each of the sub-flexible magnet coatings disposed between adjacent ones of the first protrusions.
7. The screen sliding and rolling mechanism according to claim 5 or 6, wherein the outer circumferential surface of the sliding wheel set is provided with a second crawler which is matched with the first crawler.
8. The roll-up screen mechanism of claim 7, wherein:
and a magnetic attraction device is arranged between the adjacent sliding wheels, and the adsorption surface of the magnetic attraction device faces the display surface of the display screen and is used for adsorbing the flexible magnet coating.
9. The roll-up screen mechanism of any one of claims 1-2, wherein the direction of rotation of the first winding member is the same as the direction of rotation of the second winding member.
10. The roll-up screen mechanism of claim 7, comprising a first housing and a second housing, the first winding member coupled to the first housing, the set of sliding wheels coupled to the second housing, the first housing and the second housing being movable in a direction toward or away from each other.
11. The roll-up screen mechanism of claim 7, wherein the second track includes a plurality of second protrusions disposed in spaced relation, each of the first protrusion longitudinal section and each of the second protrusion longitudinal section being trapezoidal or triangular or rectangular in shape.
12. A display device comprising a roll-up mechanism as claimed in any one of claims 1 to 11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111147602.6A CN113851052B (en) | 2021-09-28 | 2021-09-28 | Sliding screen rolling mechanism and display device |
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| CN202111147602.6A CN113851052B (en) | 2021-09-28 | 2021-09-28 | Sliding screen rolling mechanism and display device |
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| CN113851052B true CN113851052B (en) | 2023-10-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114898663B (en) * | 2022-05-19 | 2023-12-22 | 昆山国显光电有限公司 | display device |
| CN218299289U (en) * | 2022-06-02 | 2023-01-13 | 华为技术有限公司 | Terminal equipment |
| CN115407601A (en) * | 2022-10-11 | 2022-11-29 | 成都阿姆丽斯科技有限公司 | Projection screen and projection system |
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