CN114399953B - Support backboard and slidable roll display device - Google Patents
Support backboard and slidable roll display device Download PDFInfo
- Publication number
- CN114399953B CN114399953B CN202210065264.XA CN202210065264A CN114399953B CN 114399953 B CN114399953 B CN 114399953B CN 202210065264 A CN202210065264 A CN 202210065264A CN 114399953 B CN114399953 B CN 114399953B
- Authority
- CN
- China
- Prior art keywords
- support
- back plate
- bars
- supporting
- elastic connecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000463 material Substances 0.000 claims description 19
- 239000012790 adhesive layer Substances 0.000 claims description 10
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 14
- 239000010410 layer Substances 0.000 description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 description 8
- 239000005020 polyethylene terephthalate Substances 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000002096 quantum dot Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The disclosure provides a support backboard and a slidable roll display device, relates to the technical field of display, and aims to reduce the risk that the support backboard is easy to generate dislocation deformation. The support back plate comprises a plurality of support bars and at least one elastic connecting part. The support bars are arranged at intervals along the first direction. And each support bar extends in a second direction. The first direction and the second direction are parallel to the reference plane, and the first direction is perpendicular to the second direction. The reference surface is a plane where the support bars are located. The side surface of the supporting bar is provided with at least one groove, the side surface is parallel to the second direction and the third direction, and the third direction is perpendicular to the reference surface. The elastic connection part is arranged between two adjacent support bars. The side is the face that every support bar contacted with the elastic connection portion, and the elastic connection portion contacts and connects with the side of support bar, and the part of elastic connection portion is filled in the recess. The support back plate may be used in a display device.
Description
Technical Field
The invention relates to the technical field of display, in particular to a supporting backboard and a slidable roll display device.
Background
With the continuous development of display technology, an Organic Light-Emitting Diode (OLED) display device has flexible characteristics due to materials and structures, and thus provides a possibility for the variety of product appearance forms, such as curved display devices and rollable display devices.
In general, an OLED display device includes a flexible display panel and a support back plate disposed at a back side of the flexible display panel. When the shape of the flexible display panel is changed, the shape of the support back plate can also be changed accordingly, for example, the flexible display panel is rolled or tiled together, so as to support the flexible display panel. In the use process, the problem that the support backboard is easy to generate dislocation deformation exists.
Disclosure of Invention
The embodiment of the invention provides a support backboard and a slidable roll display device, which aim to reduce the risk that the support backboard is easy to generate dislocation deformation.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
in one aspect, a support back plate is provided that includes a plurality of support bars and at least one resilient connecting portion. The support bars are arranged at intervals along the first direction. And each support bar extends in a second direction. The first direction and the second direction are parallel to a reference plane, and the first direction is perpendicular to the second direction. The reference surface is a plane where the support bars are located. The side face of the supporting bar is provided with at least one groove, the side face is parallel to the second direction and the third direction, and the third direction is perpendicular to the reference surface. The elastic connecting parts are arranged between two adjacent supporting bars. The side faces are the faces of each supporting bar in contact with the elastic connecting portions, the elastic connecting portions are in contact with and connected with the side faces of the supporting bars, and the grooves are filled with parts of the elastic connecting portions.
The embodiment of the invention provides a support backboard and a slidable roll display device. Through setting up elastic connection portion between two adjacent support bars, make two adjacent support bars link together, owing to be equipped with at least one recess on the face that support bar and elastic connection portion contacted, under this circumstances, elastic connection portion's part is filled in the recess, has further improved the steadiness that support bar and elastic connection portion are connected, like this, aim at reducing the easy risk that takes place dislocation deformation of support backplate.
In some embodiments, the grooves extend in the third direction and extend through opposite surfaces of the support bar in the third direction.
In some embodiments, the grooves are formed in two opposite sides of the support bar, and the grooves formed in the two opposite sides are staggered from each other along the first direction.
In some embodiments, the dimension of at least one location of the recess in the second direction is greater than the dimension of the open location of the recess in the second direction.
In some embodiments, the shape of the orthographic projection of the groove on the reference surface is polygonal or arc-shaped and/or the dimension of the groove in the first direction is one-fourth to one-half of the dimension of the support bar in the first direction.
In some embodiments, the support back plate further comprises a support portion disposed on one side of the plurality of support bars along the first direction.
In some embodiments, the support bar includes a first surface and a second surface opposite in the third direction. The support portion includes third and fourth surfaces opposing in the third direction. The first surface is flush with the third surface, and the second surface is flush with the fourth surface.
In some embodiments, the support back further comprises an adhesive layer positioned between and bonded to adjacent ones of the resilient connecting portions and the support bars.
In some embodiments, the material of the elastic connection comprises at least one of silicone rubber and thermoplastic polyurethane elastomer.
In another aspect, a rollable display device is provided, including a display panel and a support backplate according to any one of the embodiments described above. The display panel comprises a roll sliding part and a non-roll sliding part which are sequentially arranged along the first direction and connected. The support backboard is arranged on one side opposite to the light emergent side of the display panel; the support back plate comprises a plurality of support bars and at least one elastic connecting part, wherein the support bars and the at least one elastic connecting part are positioned on one side of the sliding roll part.
Drawings
Fig. 1 is a schematic structural diagram of a slidable roll display device according to some embodiments of the present disclosure;
fig. 2 is a schematic structural diagram of a display panel and a support back plate after assembly according to some embodiments of the present disclosure;
fig. 3 is a schematic structural diagram of another display panel and a support back plate according to some embodiments of the present disclosure;
fig. 4 is a schematic structural diagram of a display panel and a support back after assembly according to some embodiments of the present disclosure;
FIG. 5 is a schematic top view of a support back plate according to some embodiments of the present disclosure;
FIG. 6 is a schematic cross-sectional view of the support back plate of FIG. 5 along the direction A-A';
FIG. 7 is a schematic illustration of a support bar according to some embodiments of the present disclosure;
FIG. 8 is a schematic illustration of another support bar provided in some embodiments of the present disclosure;
FIG. 9 is a schematic illustration of a construction of yet another support bar provided in some embodiments of the present disclosure;
FIG. 10 is a schematic illustration of a construction of yet another support bar provided in some embodiments of the present disclosure;
FIG. 11 is a schematic diagram of a groove according to some embodiments of the present disclosure;
FIG. 12 is a schematic view of a support portion and support bar connection structure according to some embodiments of the present disclosure;
FIG. 13 is a schematic view of another support portion coupled to a support bar according to some embodiments of the present disclosure;
FIG. 14 is a schematic view of a support back plate according to some embodiments of the present disclosure;
FIG. 15 is a schematic view of another support back provided in some embodiments of the present disclosure;
FIG. 16 is a schematic view of a retractable state of a rollable display device according to some embodiments of the present disclosure;
FIG. 17 is a schematic view of a slidable roll display device according to some embodiments of the present disclosure;
fig. 18 is a flowchart of a method for manufacturing a support back according to some embodiments of the present disclosure.
Detailed Description
The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by one of ordinary skill in the art based on the embodiments provided by the present disclosure are within the scope of the present disclosure.
Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and its other forms such as the third person referring to the singular form "comprise" and the present word "comprising" are to be construed as open, inclusive meaning, i.e. as "comprising, but not limited to. In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", "some examples", "and the like are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying 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. As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. In the description of the embodiments of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.
At least one of "A, B and C" has the same meaning as at least one of "A, B or C," both include the following combinations of A, B and C: a alone, B alone, C alone, a combination of a and B, a combination of a and C, a combination of B and C, and a combination of A, B and C.
"A and/or B" includes the following three combinations: only a, only B, and combinations of a and B.
As used herein, "about" or "approximately" includes the stated values as well as average values within an acceptable deviation range of the particular values as determined by one of ordinary skill in the art in view of the measurement in question and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system).
It will be understood that when a layer or element is referred to as being "on" another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may also be present.
Exemplary embodiments are described herein with reference to cross-sectional and/or plan views as idealized exemplary figures. In the drawings, the thickness of layers and regions are exaggerated for clarity. The present disclosure should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of example embodiments.
As shown in fig. 1, some embodiments of the present disclosure provide a slidable roll display device 100, where the slidable roll display device 100 may be used as any product or component with a display function, such as a television, a mobile phone, a tablet computer, a notebook computer, a digital photo frame, or a navigator, and the use of the slidable roll display device 100 is not limited by the embodiments of the present disclosure.
In some embodiments, the rollable display device 100 includes an electroluminescent display or other type of display.
In some examples, the electroluminescent Display comprises an Organic Light-Emitting Diode Display, a quantum dot electroluminescent Display (Quantum Dot Light Emitting Diodes), or a Micro-LED Display.
In some embodiments, as shown in fig. 2, the rollable display device 100 may include a display panel 2 and a support backplate 1 disposed on a side of the display panel 2 opposite the light exit side 20. The display panel 2 includes a rolled portion 21 and a non-rolled portion 22 which are sequentially disposed and connected in the first direction X.
Since the rollable display device 100 has a roll function, the display panel 2 is a flexible display panel and can be bent according to application requirements. That is, the support back plate 1 may be curved with the bending of the flexible display panel.
In some examples, as shown in fig. 3, an adhesive layer 201, a patterned metal support 202, and a buffer layer 203, which are sequentially stacked, may be included between the display panel 2 and the support backplate 1, the adhesive layer 201 being in contact with and connected to the support backplate 1, and a material of the adhesive layer 201 may include a thermosetting resin or a photocurable resin. Illustratively, the material of the adhesive layer 201 is a pressure-sensitive adhesive, such as an acrylate pressure-sensitive adhesive, to improve the connection stability with the support back plate 1. The patterned metal support 202 achieves a better heat dissipation effect for the display panel 2. The material of the buffer layer 203 may be a foam to provide buffer protection for the display panel 2.
In addition, the display panel 2 and the support back plate 1 may be fixed together by other structures, such as fasteners, buckles, etc., and the fixing manner of the display panel 2 and the support back plate 1 is not limited in the embodiments of the present disclosure, as long as the fixing therebetween can be achieved.
The embodiment of the present disclosure provides a support back 1, which may be applied to the above-described embodiment of the rollable display device 100, as shown in fig. 4, the support back 1 may include a plurality of support bars 12 and at least one elastic connection portion 11. The plurality of support bars 12 and the at least one elastic connection portion 11 are located at one side of the roll portion 21 so that the support bars 12 and the elastic connection portion 11 can be rolled together with the roll portion 21 during the roll of the roll portion 21.
As shown in fig. 5 and 6, the plurality of support bars 12 are arranged at intervals in the first direction X, and each support bar 12 extends in the second direction Y. The first direction X and the second direction Y are parallel to the reference plane M, and the first direction X is perpendicular to the second direction Y. The reference plane M is a plane in which the plurality of support bars 12 are located. The support bar 12 is provided with at least one groove 120 in a side surface parallel to the second direction Y and to a third direction Z perpendicular to the reference plane M. The elastic connection 11 is disposed between two adjacent support bars 12. The side surface is the surface of each support bar 12 in contact with the elastic connection portion 11, the elastic connection portion 11 is in contact with and connected with the side surface of the support bar 12, and a portion of the elastic connection portion 11 is filled in the groove 120. Thus, the bonding area between the support bar 12 and the elastic connecting part 11 can be increased, and the connection stability is improved; and the elastic connection part 11 is partially filled in the groove 120, so that the locking can be formed, and the connection stability is improved.
In the embodiment of the disclosure, when the support back plate 1 is bent, the portion of the elastic connection portion 11 is filled in the groove 120, so that poor connection stability between the support bar 12 and the elastic connection portion 11 can be prevented, and the elastic connection portion 11 is prevented from falling off, so that the connection stability of the support bar 12 and the elastic connection portion 11 is improved, and the risk that the support back plate 1 is easy to be dislocated and deformed is reduced. In addition, when the support back plate 1 is bent, the grooves 120 can release part of bending stress, so that the resilience force of the support bars 12 is reduced, and the risk that the support back plate 1 is easy to be dislocated and deformed is further reduced.
In some embodiments, the material of the support bar 12 is a material having some toughness and rigidity, such as a metal, glass, ceramic, or organic material, etc. The toughness of the material ensures the restoring capability of the support backboard 1 after the sliding roll and the flatness of the support backboard 1 after the unfolding, and the rigidity of the material ensures the support performance of the support backboard 1.
In some examples, the material of the support bar 12 is a metal, such as a rigid thermally conductive material, such as stainless steel or copper (Cu). These materials have high rigidity and toughness and can match various requirements of the slidable roll display.
In some embodiments, the material of the elastic connection 11 is at least one of silicone rubber and thermoplastic polyurethane elastomer (Thermoplastic polyyrethane, TPU).
In some examples, the material of the elastic connection 11 is silicone rubber.
In some examples, the spacing between any adjacent two of the plurality of support bars 12 is exactly equal.
In other examples, the spacing between adjacent two of the plurality of support bars 12 is not exactly equal.
In the presently disclosed embodiments, "not exactly equal" refers to partially equal, partially unequal, or none equal. For example, the spacing between two adjacent support bars 12 is equal in part among the plurality of support bars 12, and the spacing between two adjacent support bars 12 is unequal in part; alternatively, the spacing between any two adjacent support bars 12 may be unequal.
Fig. 4 to 6 illustrate that the spacing between any two adjacent support bars 12 in the plurality of support bars 12 is completely equal, which is not limited in the embodiment of the present disclosure, and the spacing between two adjacent support bars 12 may be selectively set according to the actual requirement of the support back plate 1. For example, the spacing between the partial support bars 12 located at the position where the bending degree of the support back plate 1 is large in the plurality of support bars 12 may be made large. In this way, the elastic connection 11 between the partial support bars 12 can release the bending stress to a greater extent.
In some examples, as shown in fig. 5, the lengths of the plurality of support bars 12 extending in the second direction Y are substantially equal.
In other examples, the lengths of the plurality of support bars 12 extending in the second direction Y are not exactly equal.
The embodiment of the present disclosure is not limited thereto, and the lengths of the plurality of support bars 12 extending in the second direction Y are selectively set according to the shape of the display panel 2 and the roll-up requirement of the display panel 2. For example, the display area of the display panel 2 is rectangular in shape, and the bending direction of the display panel 2 is parallel to the arrangement direction of the plurality of support bars 12, the lengths of the plurality of support bars 12 extending in the second direction Y may be completely equal. For another example, the display area of the display panel 2 is circular or elliptical in shape, and the bending direction of the display panel 2 is parallel to the arrangement direction of the plurality of support bars 12, the lengths of the plurality of support bars 12 extending in the second direction Y are not exactly equal.
The width of the plurality of support bars 12 along the first direction X is not limited in the embodiment of the present disclosure, and as shown in fig. 4 to 6, the widths of the plurality of support bars 12 along the first direction X are completely equal. Of course, the widths of the supporting bars 12 along the first direction X may not be completely equal, and may be selectively set according to the requirements.
The number of the support bars 12 is not limited in the embodiment of the present disclosure, and the number of the support bars 12 may be set according to the bending requirement of the support back plate 1. Illustratively, in the case where the support back 1 has a large area of the slidability roll area, the support back 1 may have a large number of support bars 12 so that the elastic connection portions 11 connecting the support bars 12 can more effectively release bending stress, reduce the counter elasticity of the support bars 12, and improve the fatigue resistance of the support back 1. Also, for example, in the case where the support back plate 1 has a bendable region of a small area, the support back plate 1 may have a small number of support bars 12 to ensure that the structure of the support back plate 1 is simplified on the basis that the elastic connection portions 11 can effectively release bending stress, reducing the counter elasticity of the support bars 12.
In addition, the shape of the support bar 12 is not limited in the embodiments of the present disclosure, and the shape of the support bar 12 may be set according to the bending requirement of the support back plate. Illustratively, the support bar 12 may be in the shape of a regular square or a regular hexagonal prism.
In some embodiments, the number of grooves 120 is not limited, and may be selectively set according to the bending requirements of the support back plate 1, and according to the structural stability of the support bar 12 itself. The grooves 120 extend along the third direction Z and penetrate through the opposite surfaces of the support bars 12 in the third direction Z, so as to increase the contact area between the elastic connection portion 11 and the support bars 12, improve connection stability, enable the support bars 12 to be connected together, be more stable, and avoid dislocation deformation.
In some embodiments, as shown in fig. 5, the opposite sides of the support bar 12 are each provided with grooves 120, and the grooves 120 provided at the opposite sides are offset from each other in the first direction X. In this case, a greater influence on the structural stability of the support bar 12 is avoided.
In some embodiments, as shown in fig. 7, a dimension D1 of at least one location of the groove 120 in the second direction Y is greater than a dimension D2 of an opening location of the groove 120 in the second direction Y. Therefore, the elastic connecting part 11 and the supporting bar 12 can form a mechanical locking structure, so that the connection stability of the elastic connecting part 11 and the supporting bar 12 is improved, and the supporting bar 12 is prevented from being separated from the elastic connecting part 11 to cause dislocation deformation of the supporting bar 12 when the supporting backboard 1 is bent.
In some examples, as shown in fig. 8, 9, the dimension D3 of the groove 120 in the second direction Y, along the first direction X, is increased and then decreased from the bottom of the groove 120 toward the opening of the groove 120.
In another example, as shown in fig. 10, a dimension D4 of the groove 120 in the second direction Y is gradually reduced along the first direction X and directed from the bottom of the groove 120 toward the opening of the groove 120.
In some embodiments, as shown in fig. 7, the shape of the orthographic projection of the groove 120 on the reference plane M is an arc shape, as shown in fig. 8 to 10, the shape of the orthographic projection of the groove 120 on the reference plane M is a polygon, and, for example, the shape of the orthographic projection of the groove 120 on the reference plane M may be a quadrangle or a pentagon, and, for another example, the shape of the orthographic projection of the groove 120 on the reference plane M may be an isosceles trapezoid or a regular pentagon.
In some embodiments, as shown in fig. 11, the dimension D5 of the groove 120 in the first direction X is one-fourth to one-half of the dimension D6 of the support bar 12 in the first direction X. It should be noted that, when the number of the elastic connection portions 11 is less than one-fourth, the portion of the elastic connection portions 11 is filled in the groove 120, which has poor connection stability, and is easy to cause the elastic connection portions 11 to slide out during the rolling process of the support back plate 1, and when the number of the elastic connection portions is greater than one-half, the overall structure of the support bar 12 is easy to be affected.
In some embodiments, as shown in fig. 12, the support back plate 1 further includes a support portion 13, and the support portion 13 is located at one side of the non-slip roll portion 22. The support portion 13 is disposed at one side of the plurality of support bars 12 along the first direction X. Illustratively, the support portion 13 is in contact with and connected to the support bar 12. In another example, as shown in fig. 13, there are gaps between the supporting portion 13 and the plurality of supporting bars 12, and the elastic connection portion 11 is located between the supporting portion 13 and the supporting bars 12 and connected to the supporting portion 13 and the supporting bars 12, so that the supporting portion 13 and the supporting bars 12 are connected and fixed together by the elastic connection portion 11. The supporting portion 13 provides a supporting function for the display panel 2, and can enhance the effect of supporting the back plate 1 for unfolding after bending.
In some embodiments, as shown in fig. 14, the brace 12 can include a first surface 121 and a second surface 122 that are opposite in a third direction Z. The support 13 may include a third surface 131 and a fourth surface 132 opposite in the third direction Z. The first surface 121 and the third surface 131 are flush, and the second surface 122 and the fourth surface 132 are flush. The first surface 121, the second surface 122, the third surface 131 and the fourth surface 132 are all planar, so that the display panel 2 can be better supported without affecting the display effect of the display panel 2.
In some embodiments, as shown in fig. 15, the support back 1 may further include an adhesive layer 204 between and bonded to the adjacent elastic connection 11 and support bar 12. For example, the adhesive layer 204 may be a primer, and since the surface properties of the support bar 12 and the elastic connection portion 11 are different, the support bar 12 and the elastic connection portion 11 are easy to fall off, and a primer layer is coated on the side surface of the support bar 12 contacted with the elastic connection portion 11, so as to enhance the adhesion of the surface, further improve the connection stability of the elastic connection portion 11 and the support bar 12, and further improve the bending stability of the support back plate 1.
In some embodiments, as shown in fig. 16, the rollable display device 100 may further include a support plate 101, a roller 102, a reversing column 103, a fine guide shaft 104, and a traction member 105, where the axial directions of the roller 102, the reversing column 103, and the fine guide shaft 104 are parallel to each other and perpendicular to the first direction X, and the reversing column 103 is located between the roller 102 and the fine guide shaft 104. The non-slip coil portion 22 and the support portion 13 are fixed to the support plate 101, the support portion 13 is located between the non-slip coil portion 22 and the support plate 101, and the support portion 13 is in contact with the support plate 101. The support plate 101 supports and fixes the non-rolled portion 22, and the non-rolled portion 22 is not bent, thereby achieving a flat display effect. The sliding and rolling part 21 is wound on the roller 102 to realize the bending of the sliding and rolling part 21, and the supporting bars 12 and the elastic connecting parts 11 are wound on the roller 102 and are contacted with the outer peripheral surface of the roller 102 because the supporting bars 12 supporting the back plate 1 and the at least one elastic connecting part 11 are positioned at one side of the sliding and rolling part 21. One side of the sliding roll part 21 far away from the non-sliding roll part 22 is connected with one end of a traction piece 105 with elasticity, the traction piece 105 is sequentially wound on a thin guide shaft 104 and a reversing column 103, and the other end of the traction piece 105 is connected with a supporting plate 101. The thin guide shaft 104 and the reversing column 103 are used for reversing the traction element 105.
As shown in fig. 16, when a larger display area of the display panel 2 is required, the supporting plate 101 is pulled in the E direction by an external force, and the traction member 105 has elasticity, so that the slide roller portion 21 is bent on the roller 102 when the supporting plate 101 is pulled, and the hidden portion of the display panel 2 is pulled out, so that the display panel 2 is unfolded for a larger display area. As shown in fig. 17, when a small display area of the display panel 2 is required, the support plate 101 is pushed in the direction F by an external force, so that the slide roller portion 21 slides on the roller 102 in a curved manner by the external force and the elastic force of the traction member 105, and is hidden under the support plate 101, thereby reducing the display area.
As shown in fig. 18, an embodiment of the present disclosure provides a method for manufacturing a support back plate 1, including:
s1, providing a bearing film.
In the above step, the carrier film may be a PET protective film, and the material of the PET protective film includes polyethylene terephthalate (polyethylene glycol terephthalate, PET), and the thickness of the PET protective film may be 0.1mm.
S2, forming a plurality of support bars 12 along a first direction X on the bearing film, and forming grooves 120 on the side surfaces of the support bars 12.
In the above step, the plurality of support bars 12 are arranged at intervals in the first direction X. In the case that the carrier film is a PET protective film, since the PET protective film itself has a certain viscosity, the plurality of support bars 12 may be directly placed on the PET protective film at set intervals to fix the positions of the plurality of support bars 12.
S3, forming an adhesive layer 204 on a side of each support bar 12 in contact with the elastic connection portion 11, forming the elastic connection portion 11 in a gap between two support bars 12 among the plurality of support bars 12,
in the above steps, the elastic connection portion 11 is in contact with and connected to each support bar 12, and the adhesive layer 204 may be, for example, a primer having a certain viscosity, which may enhance the stability of connection between the support bars 12 and the elastic connection portion 11, and for example, the material of the elastic connection portion 11 may be silica gel, and in addition, the silica gel may be injected into the groove 120 by injection molding or hot pressing of liquid silica gel, and then the silica gel is dehumidified and dried by heating, thereby curing, and enhancing the connection stability of the silica gel and the support bars 12.
In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. Support backplate, its characterized in that includes:
a plurality of support bars arranged at intervals along the first direction, and each support bar extends along the second direction; the first direction and the second direction are parallel to a reference plane, the first direction is perpendicular to the second direction, and the reference plane is a plane where the support bars are located; the side surface of the supporting bar is provided with at least one groove, the side surface is parallel to the second direction and the third direction, and the third direction is perpendicular to the reference surface; the method comprises the steps of,
at least one elastic connecting part, which is arranged between two adjacent supporting bars; the side faces are the faces of each supporting bar in contact with the elastic connecting parts, the elastic connecting parts are in contact with and connected with the side faces of the supporting bars, and part of the elastic connecting parts are filled in the grooves;
the grooves extend along the third direction and penetrate through surfaces of the support bars opposite to each other in the third direction.
2. The support back of claim 1 wherein the grooves are provided in opposite sides of the support bar, the grooves provided in the sides being offset from one another in the first direction.
3. The support backplate of claim 1, wherein at least one location of the recess has a dimension in the second direction that is greater than a dimension of an opening location of the recess in the second direction.
4. The support back plate of claim 1 wherein the shape of the orthographic projection of the groove on the reference surface is polygonal or arcuate and/or the dimension of the groove in the first direction is one quarter to one half of the dimension of the support bar in the first direction.
5. The support back plate of any of claims 1-4 further comprising:
and the supporting part is arranged on one side of the supporting strips along the first direction.
6. The support back plate of claim 5, wherein the brace bar includes first and second surfaces opposing in the third direction, the brace portion includes third and fourth surfaces opposing in the third direction, the first and third surfaces are flush, and the second and fourth surfaces are flush.
7. The support back plate of any of claims 1-4 further comprising:
and the adhesive layer is positioned between the adjacent elastic connecting parts and the supporting strips and is adhered to the adjacent elastic connecting parts and the adjacent supporting strips.
8. The support back plate according to any one of claims 1 to 4 wherein the material of the elastic connection comprises at least one of silicone rubber and thermoplastic polyurethane elastomer.
9. A roll-to-roll display device, comprising:
the display panel comprises a roll sliding part and a non-roll sliding part which are sequentially arranged along the first direction and connected with each other;
the support back plate according to any one of claims 1 to 8, provided on a side of the display panel opposite to a light-emitting side; the support back plate comprises a plurality of support bars and at least one elastic connecting part, wherein the support bars and the at least one elastic connecting part are positioned on one side of the sliding roll part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210065264.XA CN114399953B (en) | 2022-01-20 | 2022-01-20 | Support backboard and slidable roll display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210065264.XA CN114399953B (en) | 2022-01-20 | 2022-01-20 | Support backboard and slidable roll display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114399953A CN114399953A (en) | 2022-04-26 |
| CN114399953B true CN114399953B (en) | 2023-11-10 |
Family
ID=81233307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210065264.XA Active CN114399953B (en) | 2022-01-20 | 2022-01-20 | Support backboard and slidable roll display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114399953B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208141720U (en) * | 2018-05-28 | 2018-11-23 | 京东方科技集团股份有限公司 | Flexible strutting piece, flexible display substrates and display device |
| CN111341205A (en) * | 2020-03-03 | 2020-06-26 | 武汉华星光电半导体显示技术有限公司 | Display device and backboard thereof |
| CN111477106A (en) * | 2020-04-17 | 2020-07-31 | 京东方科技集团股份有限公司 | Folding support backboard, display panel and electronic equipment |
| CN112382200A (en) * | 2020-11-13 | 2021-02-19 | 京东方科技集团股份有限公司 | Display device |
| CN112967602A (en) * | 2021-02-05 | 2021-06-15 | 京东方科技集团股份有限公司 | Display module and display device |
| CN113054132A (en) * | 2021-03-09 | 2021-06-29 | 京东方科技集团股份有限公司 | Display device |
| CN113299856A (en) * | 2021-05-21 | 2021-08-24 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN113554951A (en) * | 2021-07-21 | 2021-10-26 | 京东方科技集团股份有限公司 | Sliding scroll display device |
| CN214541377U (en) * | 2021-01-21 | 2021-10-29 | 京东方科技集团股份有限公司 | Flexible supporting plate and display device |
| CN113658510A (en) * | 2021-08-16 | 2021-11-16 | 京东方科技集团股份有限公司 | Roll sliding mechanism, manufacturing method thereof and display device |
-
2022
- 2022-01-20 CN CN202210065264.XA patent/CN114399953B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208141720U (en) * | 2018-05-28 | 2018-11-23 | 京东方科技集团股份有限公司 | Flexible strutting piece, flexible display substrates and display device |
| CN111341205A (en) * | 2020-03-03 | 2020-06-26 | 武汉华星光电半导体显示技术有限公司 | Display device and backboard thereof |
| CN111477106A (en) * | 2020-04-17 | 2020-07-31 | 京东方科技集团股份有限公司 | Folding support backboard, display panel and electronic equipment |
| CN112382200A (en) * | 2020-11-13 | 2021-02-19 | 京东方科技集团股份有限公司 | Display device |
| CN214541377U (en) * | 2021-01-21 | 2021-10-29 | 京东方科技集团股份有限公司 | Flexible supporting plate and display device |
| CN112967602A (en) * | 2021-02-05 | 2021-06-15 | 京东方科技集团股份有限公司 | Display module and display device |
| CN113054132A (en) * | 2021-03-09 | 2021-06-29 | 京东方科技集团股份有限公司 | Display device |
| CN113299856A (en) * | 2021-05-21 | 2021-08-24 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN113554951A (en) * | 2021-07-21 | 2021-10-26 | 京东方科技集团股份有限公司 | Sliding scroll display device |
| CN113658510A (en) * | 2021-08-16 | 2021-11-16 | 京东方科技集团股份有限公司 | Roll sliding mechanism, manufacturing method thereof and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114399953A (en) | 2022-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107942563B (en) | Display module and display device | |
| CN210955911U (en) | Flexible screen module and display device | |
| CN108122502B (en) | Foldable display device | |
| US20240157669A1 (en) | Display module and display apparatus | |
| US11793061B2 (en) | Display assembly and display device | |
| CN110058444B (en) | Display module and display device | |
| US20230034440A1 (en) | Support backplane, flexible display screen, and electronic device | |
| US20220006044A1 (en) | Optical adhesive and display panel | |
| CN109599503B (en) | Display device | |
| CN109940948B (en) | Flexible cover plate, display device and preparation method of flexible cover plate | |
| US10946616B2 (en) | Bonding layer having discrete adhesive patches | |
| US20210366320A1 (en) | Back-film structure, flexible display panel and display device | |
| CN110164310B (en) | Flexible display panel and display device | |
| CN112967609B (en) | Rollable display device | |
| KR20160095308A (en) | Organic light emitting diode display device and the method of manufacturing thereof | |
| CN114446182B (en) | Flexible cover plate and display module | |
| CN110635014B (en) | Flexible cover plate and display panel | |
| CN114399953B (en) | Support backboard and slidable roll display device | |
| TWI582500B (en) | Backlight module and display device | |
| CN115273674A (en) | Support backplate and smooth display device that rolls up | |
| CN114467131B (en) | Flexible panel supporting structure, display device and flexible module assembly method | |
| US11737217B2 (en) | Display device and back plate thereof | |
| CN111788625A (en) | Back film layer, flexible display panel and flexible display device | |
| CN216647726U (en) | Flexible cover plate and display module | |
| US9810835B2 (en) | Backlight module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |