CN107316566B - Rollable device and rollable display device - Google Patents
Rollable device and rollable display device Download PDFInfo
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- CN107316566B CN107316566B CN201710681246.3A CN201710681246A CN107316566B CN 107316566 B CN107316566 B CN 107316566B CN 201710681246 A CN201710681246 A CN 201710681246A CN 107316566 B CN107316566 B CN 107316566B
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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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- 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
- G09F9/33—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 being semiconductor devices, e.g. diodes
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Abstract
The invention discloses a rollable device and a rollable display device. A crimpable device, comprising: the flexible magnetic strip group comprises a first magnetic strip and a second magnetic strip which are oppositely arranged in a first direction, and the magnetic pole direction of the first magnetic strip is the same as that of the second magnetic strip along the first direction so as to clamp the edge of the element to be curled; and the roller is used for curling the element to be curled. The rollable device provided by the invention can be suitable for manufacturing a rollable display device, the rollable performance of the flexible display device is realized, and the frame area of the flexible display panel is clamped and fixed through the attraction force between the first magnetic strip and the second magnetic strip, so that the display effect of the display panel is not influenced; the flexible magnetic strip group is flexible as a whole, and the flexible display panel cannot be damaged when being in a curled state; the flexible magnetic strip group is used for fixedly supporting the flexible display panel, and the flexible magnetic strip group is light in weight, so that the whole curling type display device is light and easy to carry.
Description
Technical Field
The present invention relates to the field of organic light emitting display technology, and more particularly, to a rollable device and a rollable display device.
Background
Organic Light-Emitting Diodes (OLEDs) use organic polymeric materials as the semiconductor material in the Light-Emitting diode, which emit Light when a current is passed through the material. The OLED display technology has the self-luminous characteristic, and has the characteristics of wide viewing angle, high contrast, low energy consumption and the like. The OLED is manufactured on the flexible substrate based on the characteristics of the OLED, then the thin film packaging layer is manufactured on the OLED to block water and oxygen, the flexible display panel can be manufactured, the use of backlight is reduced, the thickness of the display panel can be reduced, and the weight of the display device is reduced.
As market demand for flexible displays increases, research and development on various flexible displays are currently receiving more and more attention, such as curved displays having a specific curvature, foldable displays that can be bent about a folding axis, and rollable displays that can be rolled to a specific radius of curvature.
Among different flexible display types, rollable displays have been the subject of extensive research because of their high display area and easy storage. Therefore, it is a problem to be solved in the art to provide a rollable device and a rollable display device, which achieve the rollable performance of a flexible display device.
Disclosure of Invention
In view of the above, the present invention provides a rollable device and a rollable display device, which solve the technical problem of reliable rollable performance of a flexible display device.
In order to solve the above technical problem, the present invention provides a crimpable device, comprising:
the flexible magnetic strip group comprises a first magnetic strip and a second magnetic strip which are oppositely arranged in a first direction, and the magnetic pole direction of the first magnetic strip is the same as that of the second magnetic strip along the first direction so as to clamp the edge of the element to be curled;
and the roller is used for curling the element to be curled.
Further, in order to solve the above technical problem, the present invention provides a rollable display device, comprising a flexible display panel and a rollable device, wherein the rollable device comprises any one of the rollable devices provided by the present invention,
in the first direction, the flexible display panel is clamped between the first magnetic strip and the second magnetic strip, the surface of the flexible display panel is vertical to the first direction,
the flexible display panel comprises a display area and a frame area, and the frame area is clamped by the flexible magnetic strip group.
Compared with the prior art, the rollable device and the rollable display device of the invention realize the following beneficial effects:
the crimpable device provided by the invention clamps the edge of the element to be crimped through the attractive force between the first magnetic strip and the second magnetic strip of the flexible magnetic strip group, and does not influence the normal operation of the element to be crimped. First magnetic stripe and second magnetic stripe are whole to be flexible, can not appear the dog-ear during the crimping state, consequently, can not cause the component of waiting to crimp during the crimping state and fold. The rollable device provided by the invention can be suitable for manufacturing a rollable display device, and the rollable performance of the flexible display device is realized, on the one hand, the frame area of the flexible display panel is clamped and fixed through the attraction force between the first magnetic strip and the second magnetic strip, and the display effect of the display panel is not influenced during normal work; in the second aspect, the whole flexible magnetic strip group is flexible, so that a folded angle cannot appear during rolling, and the display panel cannot be damaged during rolling of the flexible display panel; and in the third aspect, the flexible display panel is fixedly supported by the flexible magnetic strip group, and the flexible magnetic strip group is light in weight, so that the whole curled display device is light and portable.
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 schematic cross-sectional view of a flexible magnetic strip set of a rollable device provided by an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a flexible magnetic stripe group of a rollable device in a rolled state according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an alternative embodiment of a scrolling display device according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a magnetic stripe structure provided in an embodiment of the present invention;
FIG. 5 is a schematic top view of an alternative implementation of a flexible magnetic strip array of a crimpable device provided by an embodiment of the present invention;
FIG. 6 is a schematic perspective view of an alternative embodiment of a flexible magnetic strip array of a crimpable device according to an embodiment of the present invention;
FIG. 7 is a schematic top view of the flexible magnetic strip assembly of the crimpable device of FIG. 6;
FIG. 8 is a schematic perspective view of an alternative embodiment of a flexible magnetic strip array of a crimpable device according to an embodiment of the present invention;
FIG. 9 is a schematic top view of the flexible magnetic strip assembly of the crimpable device of FIG. 8;
FIG. 10 is a schematic perspective view of an alternative embodiment of a flexible magnetic strip array of a crimpable device according to an embodiment of the present invention;
FIG. 11 is a schematic top view of the flexible magnetic strip assembly of the crimpable device of FIG. 10;
FIG. 12 is a schematic view of an elliptical cylinder shaped roll shaft;
FIG. 13 is a perspective view of a cylindrical roller shaft;
figure 14 is a schematic view of an alternative embodiment of a crimpable device according to an embodiment of the present invention in an expanded state;
figure 15 is a schematic view of an alternative embodiment of a crimpable device according to an embodiment of the present invention in an expanded state;
figure 16 is a schematic view of an alternative embodiment of a crimpable device provided in accordance with an embodiment of the present invention;
figure 17 is a schematic view of an alternative embodiment of a crimpable device according to an embodiment of the present invention in an expanded state;
figure 18 is a schematic view of an alternative embodiment of a crimpable device according to an embodiment of the present invention in an expanded state.
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.
The invention relates to a rollable device and a rollable display device, which adopt a flexible magnetic strip to realize the rolling of a flexible display panel. The frame area of the flexible display panel is fixed through attractive force between the two magnetic strips with the same magnetic pole direction, the magnetic strips are integrally curled, the folded angle cannot occur, and the display panel cannot be damaged in the curling state.
The present invention provides a crimpable device comprising: flexible magnetic stripe group and roller. The flexible magnetic strip group is used for clamping an element to be curled, the roller shaft is used for curling the element to be curled, and the element to be curled can be a flexible display panel. Fig. 1 is a schematic cross-sectional view of a flexible magnetic stripe group of a rollable device according to an embodiment of the present invention. As shown in fig. 1, the flexible magnetic strip group includes a first magnetic strip 101 and a second magnetic strip 102 oppositely arranged in a first direction a, in the first direction a, the magnetic pole direction of the first magnetic strip 101 is the same as the magnetic pole direction of the second magnetic strip 102, so as to realize that two opposite surfaces of the first magnetic strip 101 and the second magnetic strip 102 have different magnetic poles, as shown in fig. 1, the first surface 101A of the first magnetic strip 101 is N-pole, the second surface 102B of the second magnetic strip 102 is S-pole, and the edge of the element to be curled 103 is clamped by the attraction force between the first magnetic strip 101 and the second magnetic strip 102; when the element to be curled 103 is a flexible display panel, the edge is a frame region of the flexible display panel. The crimpable device provided by the invention clamps the edge of the element to be crimped 103 by the attraction force between the first magnetic strip 101 and the second magnetic strip 102 of the flexible magnetic strip group, and does not affect the normal operation of the element to be crimped 103. Fig. 2 is a schematic diagram illustrating a flexible magnetic strip set of the rollable device according to an embodiment of the present invention in a rolled state, as shown in fig. 2, the first magnetic strip 101 and the second magnetic strip 102 are integrally flexible, and no folding angle occurs in the rolled state, so that the element to be rolled 103 is not folded.
The rollable device provided by the invention can be suitable for manufacturing a rollable display device to realize the rollable performance of a flexible display device, and fig. 3 is a schematic diagram of an alternative implementation manner of the rollable display device provided by the embodiment of the invention. As shown in fig. 3, the roll-up display device includes a roll shaft 200, a flexible display panel, and a flexible magnetic stripe group 100, wherein the roll shaft 200 is connected to one side 100A of the flexible magnetic stripe group 100, and the flexible magnetic stripe group 100 can roll up the flexible display panel on the roll shaft 200 after clamping the flexible display panel, wherein the flexible display panel includes a display area AA and a frame area BA, and the flexible magnetic stripe group 100 clamps the frame area BA of the flexible display panel, wherein a cross-sectional view at a tangent line C-C position can refer to fig. 1, and the element to be rolled 103 in fig. 1 is a flexible display panel. On the first hand, the frame area of the flexible display panel is clamped and fixed through the attraction force between the first magnetic strip and the second magnetic strip, and the display effect of the display panel is not influenced during normal work; in the second aspect, the whole flexible magnetic strip group is flexible, so that a break angle cannot appear in the process of rolling, and the display panel cannot be damaged in the process of rolling the rolling display device; in the third aspect, the flexible display panel is fixedly supported by the flexible magnetic strip group, and the flexible magnetic strip group is light in weight, so that the whole roll-up display device is light and portable; and in the fourth aspect, the flexible magnetic strip group is adopted to clamp the element to be curled, the flexible magnetic strip group is contacted with each other when the element to be curled is in a curled state, and the magnetic poles of the first magnetic strip and the second magnetic strip in the flexible magnetic strip group are in the same direction, so that the mutual attraction of the parts of the flexible magnetic strip group in contact with each other is ensured, and the stable maintenance of the curled state can be further ensured.
Further, in some alternative embodiments, the first magnetic strip and the second magnetic strip in the flexible magnetic strip group of the present invention are made of the same magnetic strip structure. Fig. 4 is a schematic view of a magnetic stripe structure provided in an embodiment of the present invention, and as shown in fig. 4, the magnetic stripe includes: a flexible base layer 104 and a magnetic powder layer 105 oppositely arranged in a first direction a. The flexible substrate layer can be made of organic materials with flexibility such as polyimide, polyethylene naphthalate, polyethylene terephthalate or cyclic olefin copolymer, magnetic powder is made on the flexible substrate, the obtained magnetic strip is good in flexibility, and the flexible magnetic strip group is not prone to bending when being curled. It should be noted that, the flexible substrate layer 104 is only used as a substrate layer to achieve the flexibility of the magnetic strips, and the thickness of the flexible substrate layer in the first direction a is very thin, so that when two magnetic strips form a flexible magnetic strip group, the attraction force between the two magnetic strips and the attraction force between the magnetic strips and the roller shaft are less affected.
Optionally, can make first magnetic stripe and second magnetic stripe respectively, the magnetic pole direction on the magnetic powder layer of first magnetic stripe and second magnetic stripe is different, when constituteing flexible magnetic stripe group, makes the magnetic powder layer of two magnetic stripes set up relatively, and the centre does not have the separation of flexible stratum basale to the centre gripping of guaranteeing between two magnetic stripes treats the power of crimping component the biggest.
Further, in some alternative embodiments, as shown in fig. 4, the thickness d of the magnetic stripe in the first direction a is 0.1mm to 1 mm. That is, the thickness value range of first magnetic stripe and second magnetic stripe is 0.1mm ~ 1mm, sets up the magnetic stripe and has certain thickness, can avoid treating when flexible display panel is in the crimp state and contact between the component, can reduce the contact friction damage of coiling in-process and treat the component that crimps.
Further, the present invention provides for a flexible magnetic strip assembly for a rollable device that includes a number of alternative embodiments, which are described below.
Fig. 5 is a schematic top view of an alternative embodiment of a flexible magnetic strip group of a crimpable device according to an embodiment of the present invention, as shown in fig. 5, when viewed from a top view, a first magnetic strip 101 and a second magnetic strip 102 in the flexible magnetic strip group are both in a ring shape, and may be in a circular ring shape or an elliptical ring shape, the first magnetic strip 101 and the second magnetic strip 102 are respectively an integral body, and an edge of a to-be-crimped element is clamped by the first magnetic strip 101 and the second magnetic strip 102.
In another alternative embodiment, referring to fig. 6 and 7, fig. 6 is a schematic perspective view of an alternative embodiment of a flexible magnetic strip set of a crimpable device according to an embodiment of the present invention, and fig. 7 is a schematic top view of the flexible magnetic strip set of the crimpable device in fig. 6.
As shown in fig. 6, the first magnetic stripe 101 and the second magnetic stripe 102 respectively include: two first bar-shaped units 106 extending along a second direction b and two second bar-shaped units 107 extending along a third direction c, wherein the second direction b is perpendicular to the third direction c, and the second direction b and the third direction c are both perpendicular to the first direction a, and it should be noted that the thicknesses of the first magnetic stripe 101 and the second magnetic stripe 102 are omitted in the perspective view.
With continued reference to fig. 7, the top view direction is the same as the first direction a, and the flexible magnetic stripe group viewed from the top view angle is a rectangular ring shape composed of two first bar-shaped units 106 extending along the second direction b and two second bar-shaped units 107 extending along the third direction c, that is, the forward projection of the flexible magnetic stripe group in the first direction a is a rectangular ring.
The flexible magnetic strip group that this embodiment provided is the rectangle cyclic annular, can grasp flexible display panel's frame district, does not influence display panel display effect, supports fixed flexible display panel when flexible display panel expandes the state, and the protection flexible display panel does not appear the die fold when flexible display panel curls the state.
In another alternative embodiment, referring to fig. 8 and 9, fig. 9 is a schematic perspective view of an alternative embodiment of a flexible magnetic strip set of a crimpable device according to an embodiment of the present invention, and fig. 9 is a schematic top view of the flexible magnetic strip set of the crimpable device in fig. 8.
As shown in fig. 8, the first magnetic stripe 101 and the second magnetic stripe 102 respectively include: two first stripe units 106 extending in a second direction b perpendicular to the third direction c, and one second stripe unit 107 extending in a third direction c perpendicular to the first direction a.
With continued reference to fig. 9, the top view direction is the same as the first direction a, and the flexible magnetic stripe group viewed from the top view angle is in a shape of a Chinese character 'men' formed by two first bar-shaped units 106 extending along the second direction b and one second bar-shaped unit 107 extending along the third direction c, that is, the orthographic projection of the flexible magnetic stripe group in the first direction is in a Chinese character 'men' shape. It should be noted that the first magnetic stripe 101 and the second magnetic stripe 102 provided in this embodiment may be integrally formed in an integral shape, or assembled in three parts, i.e., two first bar units 106 and one second bar unit 107.
The flexible magnetic strip group that this embodiment provided is the door font, and flexible magnetic strip group can centre gripping flexible display panel's frame district, supports fixed flexible display panel when flexible display panel expandes the state, and flexible display panel curls along second direction b, and the first bar unit 106 that extends along second direction b in the flexible magnetic strip group protects flexible display panel not appear dead folding when flexible display panel curls the state, prevents simultaneously that contact friction from damaging display panel between the flexible display panel. This embodiment provides a flexible magnetic strip assembly that reduces overall use of magnetic strip material, saves material costs, and meets the crimping performance of the crimpable device with one roller as shown in fig. 15 or with two rollers as shown in fig. 17, as compared to the flexible magnetic strip assemblies provided in fig. 6 and 7.
In another alternative embodiment, referring to fig. 10 and 11, fig. 10 is a schematic perspective view of an alternative embodiment of a flexible magnetic strip assembly of a crimpable device according to an embodiment of the present invention, and fig. 11 is a schematic top view of the flexible magnetic strip assembly of the crimpable device in fig. 10.
As shown in fig. 10, the first magnetic stripe 101 and the second magnetic stripe 102 of the flexible magnetic stripe group respectively include: two first bar-shaped elements 106 extending in a second direction b, which is perpendicular to the first direction a. As shown in fig. 11, the flexible magnetic stripe group is formed by sequentially arranging two stripes in a third direction c, the third direction c is perpendicular to the first direction a and the second direction b, and the top view direction of fig. 11 is the same as the first direction a.
In this embodiment, can grasp two frame areas that flexible display panel extends along second direction b through the first bar unit 106 of flexible magnetic stripe group, when flexible display panel curls along second direction b, flexible magnetic stripe group can protect flexible display panel disappearance die fold, prevent simultaneously that contact friction from damaging display panel between the flexible display panel, and in this embodiment, be equivalent to there being two sets of first bar units, along the third direction, the distance between two sets of first bar units is adjustable, can be applicable to the component of waiting to curl of arbitrary size.
Further, in the crimpable device provided in the embodiment of the present invention, the roller shaft is elliptical or cylindrical to crimp the to-be-crimped element on the roller shaft, fig. 12 is a schematic top view of the elliptical-cylindrical roller shaft, fig. 13 is a schematic perspective view of the cylindrical roller shaft, and the roller shaft is made of a material including: a metallic material or a magnetic material. The roller shaft is made of a metal material or a magnetic material, and when the element to be curled is curled on the roller shaft, the flexible magnetic strip for clamping the element to be curled and the roller shaft have an interactive attraction force to ensure that the curling state of the element to be curled is stably maintained.
The flexible magnetic strip group in the crimpable device provided by the embodiment of the invention has the minimum bending radius Rm, and the radius R of the roller shaft is larger than or equal to the minimum bending radius Rm. When the roll shaft is an elliptic cylinder, taking the elliptic cylinder roll shaft in fig. 12 as an example, as shown in fig. 12, the center O of the circle is on the major axis L of the ellipse, and the radius of the circle inscribed in the cross-sectional ellipse of the roll shaft is the radius R of the roll shaft; when the roller shaft is cylindrical, the radius of the cross-sectional circle of the roller shaft is the radius R of the roller shaft. If the radius of the roller shaft is smaller than the minimum bending radius of the flexible magnetic strip group, when the element to be curled is curled on the roller shaft, the flexible magnetic strip group is easy to break due to over bending, so that the element to be curled is damaged. Therefore, the radius of the roll shaft is larger than or equal to the minimum bending radius of the flexible magnetic strip group, and the protection effect is achieved on the element to be curled. Optionally, the radius R of the roller shaft is greater than or equal to 2mm, so that the element to be curled can be protected from being excessively bent by less than 2 mm.
The arrangement of the roller shafts in the present invention also includes various alternative embodiments, which will be described below.
In an alternative embodiment, the crimpable device includes a roller, fig. 14 is a schematic view of an alternative embodiment of the crimpable device according to an embodiment of the present invention in an unfolded state, fig. 14 is an example of a flexible magnetic strip set in a rectangular ring shape in an orthographic projection in a first direction; fig. 15 is a schematic view of an alternative embodiment of the rollable device according to an embodiment of the present invention in an unfolded state, and fig. 15 illustrates a flexible magnetic strip set in a portal shape in an orthographic projection in a first direction.
As shown in fig. 14 and 15, the rollers include a first roller 201, the first roller 201 extends along the third direction c, and in the second direction b, the first bar unit 106 includes a first end 1061 and a second end 1062 opposite to each other, and the first roller 201 is connected to the first end 1061 of the first bar unit 106.
The crimpable device provided by this embodiment comprises a first roller 201, and the flexible magnetic strip group can crimp the element to be crimped on the first roller 201 after clamping the element to be crimped.
Optionally, fig. 16 is a schematic view of another alternative embodiment of the crimpable device according to the embodiment of the present invention, as shown in fig. 16, the crimpable device further includes a housing 301 accommodating the first roller 201, the housing 301 has a slit 3011, and the flexible magnetic strip set 100 can be crimped into the housing 301 or extended from the housing 301 through the slit 3011 after clamping the element to be crimped 103. When the element to be rolled 103 is a flexible display panel, the flexible magnetic strip set 100 clamps a frame region 1031 of the flexible display panel. Optionally, the rollable device further includes a member M, where the member M functions as a stop to prevent the flexible display panel from completely entering the housing 301 from the slit 3011 when the flexible display panel is rolled into the housing 301 by the rotation of the first roller 201. It is sufficient that the housing 301 can normally house the flexible display panel, and the shape of the housing 301 is not limited to the illustrated cylindrical shape.
In another alternative embodiment, the rollers in the crimpable device include a first roller and a second roller, fig. 17 is a schematic view of an unfolded state of the alternative embodiment of the crimpable device provided by the embodiment of the present invention, as shown in fig. 17, in the second direction b, the second roller 202 is disposed opposite to the first roller 201, and the second roller 202 is connected to the second end 1062 of the first bar unit 106. The flexible magnetic strip assembly 100 may be in any shape as described in the above embodiments.
This embodiment provides a crimpable device comprising a first roller 201 and a second roller 202, both rollers 201 and 202 being capable of being used to crimp a component to be crimped after the flexible magnetic strip set has gripped the component to be crimped.
In another alternative embodiment, the roller of the crimpable device is a retractable roller, fig. 18 is a schematic view of an expanded state of another alternative embodiment of the crimpable device provided by the embodiment of the present invention, as shown in fig. 18, the first roller 201 of the crimpable device comprises: a first part 2011, a second part 2012 and a first telescopic member 2013, wherein the first part 2011 and the second part 2012 are connected through the first telescopic member 2013, the first telescopic member 2013 can move telescopically relative to the first part 2011 and the second part 2012 along a third direction c, and the first part 2011 and the second part 2012 are respectively connected with a first end 1061 of one first strip-shaped unit 106;
in the second direction b, the second roller 202 is disposed opposite to the first roller 201, and the second roller 202 includes: a third section 2021, a fourth section 2022 and a second telescopic member 2023, the third section 2021 and the fourth section 2022 being connected by the second telescopic member 2023, the second telescopic member 2023 being capable of telescopic movement relative to the third section 2021 and the fourth section 2022 in a third direction c, the third section 2021 and the fourth section 2022 being connected to the second end 1062 of one first bar unit 106, respectively.
The first part 2011, the second part 2012, the third part 2021 and the fourth part 2022 are all polygonal columns or cylinders; the manufacturing materials of the first part 2011, the second part 2012, the third part 2021 and the fourth part 2022 all include: a metallic material or a magnetic material.
In this embodiment, the first roller 201 and the second roller 202 are both retractable rollers, which can adjust the length of the rollers in the third direction c, and can be used with the flexible magnetic strip set shown in fig. 10 and 11 to adapt to different sizes of members to be curled. Alternatively, the crimpable device may have only one retractable roller. But crimping device that this embodiment provided can adjust crimping device's roller and flexible magnetic stripe group according to the size of waiting to crimp the component, but crimping device's adaptability is wide, also can be according to different demands change the component of waiting to crimp of different sizes in the use, and is more humanized.
Further, an embodiment of the present invention provides a scrolling display device, including: the flexible display panel and the rollable device, wherein the rollable device is any one of the rollable devices described in the above embodiments, referring to fig. 1, in a first direction a, the element to be rolled 103 in fig. 1, that is, the flexible display panel, is clamped between the first magnetic stripe 101 and the second magnetic stripe 102, a plate surface of the flexible display panel is perpendicular to the first direction a, the flexible display panel includes a display area and a bezel area, and the bezel area is clamped by the flexible magnetic stripe groups.
According to the curling type display device, on the first hand, the frame area of the flexible display panel is clamped and fixed through the attraction force between the first magnetic strip and the second magnetic strip, and the display effect of the display panel is not influenced during normal work; in the second aspect, the whole flexible magnetic strip group is flexible, so that a folded angle cannot appear during rolling, and the display panel cannot be damaged during rolling of the flexible display panel; and in the third aspect, the flexible display panel is fixedly supported by the flexible magnetic strip group, and the flexible magnetic strip group is light in weight, so that the whole curled display device is light and portable.
As can be seen from the above embodiments, the rollable device and the rollable display device of the present invention achieve the following advantageous effects:
the crimpable device provided by the invention clamps the edge of the element to be crimped through the attractive force between the first magnetic strip and the second magnetic strip of the flexible magnetic strip group, and does not influence the normal operation of the element to be crimped. First magnetic stripe and second magnetic stripe are whole to be flexible, can not appear the dog-ear during the crimping state, consequently, can not cause the component of waiting to crimp during the crimping state and fold. The rollable device provided by the invention can be suitable for manufacturing a rollable display device, and the rollable performance of the flexible display device is realized, on the one hand, the frame area of the flexible display panel is clamped and fixed through the attraction force between the first magnetic strip and the second magnetic strip, and the display effect of the display panel is not influenced during normal work; in the second aspect, the whole flexible magnetic strip group is flexible, so that a folded angle cannot appear during rolling, and the display panel cannot be damaged during rolling of the flexible display panel; and in the third aspect, the flexible display panel is fixedly supported by the flexible magnetic strip group, and the flexible magnetic strip group is light in weight, so that the whole curled display device is light and portable.
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 (17)
1. A crimpable device, comprising:
the flexible magnetic strip group comprises a first magnetic strip and a second magnetic strip which are oppositely arranged in a first direction, the magnetic pole direction of the first magnetic strip is the same as that of the second magnetic strip along the first direction so as to clamp the edge of an element to be curled, and the thicknesses of the first magnetic strip and the second magnetic strip in the first direction are respectively 0.1-1 mm;
the edge of the element to be curled is clamped by the first magnetic strip and the second magnetic strip;
the roller shaft is used for curling the element to be curled, and the element to be curled is a flexible display panel.
2. The crimpable device of claim 1,
the first magnetic strip and the second magnetic strip are annular.
3. The crimpable device of claim 2,
the first magnetic stripe and the second magnetic stripe respectively comprise: two first strip-shaped units extending along a second direction and two second strip-shaped units extending along a third direction, wherein the second direction is vertical to the third direction, and the second direction and the third direction are both vertical to the first direction,
the orthographic projection of the flexible magnetic strip group in the first direction is a rectangular ring.
4. The crimpable device of claim 1,
the first magnetic stripe and the second magnetic stripe respectively comprise: two first strip-shaped units extending along a second direction and a second strip-shaped unit extending along a third direction, wherein the second direction is vertical to the third direction, and the second direction and the third direction are both vertical to the first direction,
the orthographic projection of the flexible magnetic strip group in the first direction is in a door shape.
5. The crimpable device of claim 1,
the first magnetic stripe and the second magnetic stripe respectively comprise: two first bar-shaped elements extending in a second direction, the second direction being perpendicular to the first direction,
the orthographic projection of the flexible magnetic strip group in the first direction is that two strips are sequentially arranged in a third direction, and the third direction is perpendicular to the first direction and the second direction respectively.
6. Crimpable device according to claims 2-5,
the roller shafts include a first roller shaft extending in the third direction,
in the second direction, the first bar unit includes opposite first and second ends,
the first roller shaft is connected with a first end of the first bar unit.
7. The crimpable device of claim 6,
the crimpable device further comprises a housing containing the first roller, the housing having a slit through which the flexible magnetic strip set can be crimped into or out of the housing.
8. The crimpable device of claim 6,
the roll shaft is polygonal columnar or cylindrical;
the manufacturing material of the roll shaft comprises: a metallic material or a magnetic material.
9. The crimpable device of claim 6,
the first roller shaft includes: a first component, a second component and a first telescopic member, the first component and the second component being connected by the first telescopic member, the first telescopic member being telescopically movable relative to the first component and the second component in the third direction;
the first member and the second member are each connected to a first end of one of the first bar units.
10. The crimpable device of claim 9,
the roll shafts also comprise second roll shafts, the second roll shafts are arranged opposite to the first roll shafts in the second direction,
the second roller shaft is connected with a second end of the first bar unit.
11. The crimpable device of claim 10,
the second roller shaft includes: a third component, a fourth component and a second telescopic member, the third and fourth components being connected by the second telescopic member, the second telescopic member being telescopically movable relative to the third and fourth components in the third direction;
the third member and the fourth member are connected to a second end of one of the first bar units, respectively.
12. The crimpable device of claim 11,
the first part, the second part, the third part and the fourth part are all in an elliptic cylinder shape or a cylindrical shape;
the first component, the second component, the third component and the fourth component are made of materials which comprise: a metallic material or a magnetic material.
13. The crimpable device of claim 1,
the first magnetic stripe and the second magnetic stripe both comprise: and the flexible substrate layer and the magnetic powder layer are oppositely arranged in the first direction.
14. The crimpable device of claim 13,
the material of the flexible substrate layer is an organic material.
15. The crimpable device of claim 14,
the flexible substrate layer is made of polyimide, polyethylene naphthalate, polyethylene terephthalate or cyclic olefin copolymer.
16. The crimpable device of claim 1,
the radius of the roll shaft is greater than or equal to 2 mm.
17. A scrolling display device, comprising:
a flexible display panel and a rollable device, wherein the rollable device is the rollable device of any one of the preceding claims 1-16,
the flexible display panel is clamped between the first magnetic strip and the second magnetic strip along the first direction, the plate surface of the flexible display panel is vertical to the first direction,
the flexible display panel comprises a display area and a frame area, and the frame area is clamped by the flexible magnetic strip group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710681246.3A CN107316566B (en) | 2017-08-10 | 2017-08-10 | Rollable device and rollable display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710681246.3A CN107316566B (en) | 2017-08-10 | 2017-08-10 | Rollable device and rollable display device |
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| CN107316566A CN107316566A (en) | 2017-11-03 |
| CN107316566B true CN107316566B (en) | 2020-01-21 |
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| CN201710681246.3A Active CN107316566B (en) | 2017-08-10 | 2017-08-10 | Rollable device and rollable display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102438259B1 (en) * | 2017-12-04 | 2022-08-30 | 엘지디스플레이 주식회사 | Display Unit |
| CN108520917A (en) | 2018-05-31 | 2018-09-11 | 京东方科技集团股份有限公司 | A kind of flexible display apparatus |
| CN108717828B (en) | 2018-05-31 | 2020-08-21 | 京东方科技集团股份有限公司 | Display device |
| CN110120182B (en) * | 2019-04-16 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Flexible display device |
| CN110010009B (en) | 2019-04-28 | 2021-04-20 | 武汉天马微电子有限公司 | Rollable display device |
| CN113330504A (en) * | 2019-05-06 | 2021-08-31 | 深圳市柔宇科技股份有限公司 | Portable display device |
| CN110211501A (en) * | 2019-06-27 | 2019-09-06 | 昆山国显光电有限公司 | Flexible Displays mould group and display device |
| CN110211506B (en) | 2019-07-04 | 2021-08-06 | 京东方科技集团股份有限公司 | Scroll type display device |
| CN112365800B (en) * | 2020-10-30 | 2022-10-14 | 合肥维信诺科技有限公司 | Flexible display panel |
| CN112908175B (en) * | 2021-02-03 | 2022-07-12 | 武汉华星光电半导体显示技术有限公司 | Flexible display device can curl |
| CN113870710B (en) * | 2021-09-29 | 2023-08-22 | 上海天马微电子有限公司 | Flexible display device |
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| KR101780419B1 (en) * | 2011-02-15 | 2017-10-11 | 삼성디스플레이 주식회사 | Flexible display |
| CN104378936A (en) * | 2013-08-16 | 2015-02-25 | 鸿富锦精密工业（深圳）有限公司 | Electronic device |
| CN105575274A (en) * | 2016-03-08 | 2016-05-11 | 湖南大众传媒职业技术学院 | OLED display screen advertising board hooped with cylindrical bar |
| CN105741682B (en) * | 2016-05-13 | 2019-06-07 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN106128312A (en) * | 2016-08-30 | 2016-11-16 | 京东方科技集团股份有限公司 | Flexible display screen and include the display device of this flexible display screen |
| CN106596078B (en) * | 2017-02-15 | 2023-05-23 | 华南理工大学 | OLED device bending tester |
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