CN110580859A - support substrate of rollable display screen, rollable display device and electronic apparatus - Google Patents
support substrate of rollable display screen, rollable display device and electronic apparatus Download PDFInfo
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- CN110580859A CN110580859A CN201910974449.0A CN201910974449A CN110580859A CN 110580859 A CN110580859 A CN 110580859A CN 201910974449 A CN201910974449 A CN 201910974449A CN 110580859 A CN110580859 A CN 110580859A
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Classifications
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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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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention belongs to the technical field of display screens, and discloses a support substrate of a rollable display screen, a rollable display device and electronic equipment. The support substrate of the rollable display screen comprises a flexible substrate, and is used for being attached to the flexible display screen; the elastic layer is attached to one surface, far away from the flexible display screen, of the flexible substrate, and an accommodating groove is formed in one surface, close to the flexible substrate, of the elastic layer and extends in the unfolding direction of the flexible display screen; the elastic supporting piece is arranged in the accommodating groove and extends along the unfolding direction of the flexible display screen, and when the flexible display screen is unfolded, the elastic supporting piece supports the flexible display screen to be in a planar state; when the flexible display is rolled, the elastic support may be rolled onto the reel with the flexible display. The invention can ensure that the far end does not bend when the flexible display screen is unfolded without adding a far end supporting mechanism, and can protect the flexible display screen when the flexible display screen is curled, thereby avoiding the flexible display screen from being scratched.
Description
Technical Field
The invention belongs to the technical field of display screens, and particularly relates to a support substrate of a rollable display screen, a rollable display device and electronic equipment.
Background
Smart terminal devices (such as smart phones, tablet computers, etc.) are developing to have larger display areas, i.e. larger display screens, and to be thinner and more portable. At present, with the wide application of frameless technology, the screen occupation ratio of intelligent terminal equipment, especially a mobile phone, is close to the limit, so that a larger screen is required, and a larger carrying volume is required. Therefore, as a solution that can provide a larger display screen and a smaller carrying volume, the advent and application of foldable display screens, rollable display screens, are inevitable results from the demand.
compare in the folding mode of intelligent terminal display screen, the mode that the display screen curls and receive and releases more has the development future, can possess big display area when the screen expandes, has the minimum volume of carrying again after the screen rolling. Meanwhile, the technology of the oled (organic Light Emitting diode) flexible display screen is gradually mature, so that it is possible for the intelligent terminal device to have a scroll-type rollable screen.
At present, although the flexible display screen has the characteristics of being bendable, curled, portable and the like, the flexible display screen can be bent (i.e. naturally sagged) when being unfolded, and cannot independently bear larger stress and other inevitable limitations. To address this limitation, there currently exist a number of solutions as follows.
the first is to independently curl and roll the flexible display screen, and outside the rolled flexible display screen, an additional rolling and drafting mechanism for the flexible display screen is configured, and a far-end support for the flexible display screen when being unfolded is provided to avoid the natural sagging of the display screen, and meanwhile, tensile tension is applied to enable the flexible display screen to be unfolded into a plane.
For example, chinese patent publication No. CN107492309A discloses a rollable display device, which includes: a roller; a rollable display rollable onto a roller in a first direction; a plurality of thin sheets at a rear surface of the rollable display, the thin sheets being rollable together with the rollable display onto a roll in a first direction. The edge of the plurality of thin plates in the second direction may support a rear surface of the rollable display in a state where the rollable display and the plurality of thin plates are unrolled from the roller, and the plurality of thin plates in a state where the plurality of thin plates are rolled onto the roller may be flat in the second direction.
In this solution, in order to ensure the flat screen surface in the unfolded state of the display screen, the display screen must be independently subjected to additional and continuous tensile stress; under the display screen rolling state, a plurality of sheets directly superpose the oppression on the display screen, scrape colored display screen easily.
and secondly, the flexible display screen is pasted on a hard substrate which is convenient to curl and arranged in a strip shape, and moves along with the unfolding and rolling of the substrate. For example, chinese patent publication No. CN102239683A discloses a device with a flexible display. The device is attached to the flexible display using compressible stiffeners to stiffen the display, the stiffeners being compressed when the display screen is in a rolled state to reduce the size of the rolled display device. In the implementation of the device, an additional mechanism with a hinge or a telescopic rod is needed to provide the far end support so as to avoid the far end from bending and sagging; meanwhile, the compressible reinforcing parts of the device are arranged in parallel and keep a certain interval, and a transition layer with enough thickness is required to be arranged between the flexible display screen and the reinforcing parts during implementation so as to eliminate strip marks caused by the interval arrangement of the reinforcing parts on the flexible display screen, or a far-end support is required to provide pulling force through an additional mechanism with a hinge or a telescopic rod so as to eliminate the strip marks.
In this scheme, the additional mechanism that possess hinge or telescopic link to and set up the transition layer of enough thickness between flexible display screen and reinforcement, lead to the whole volume of rolling state to obtain minimum optimization, the use of spool or foldable display screen just loses meaning. When tensile tension is applied to the hard substrates arranged in a strip shape, or the screen is curled, the flexible display screen on the hard substrates arranged in the strip shape can be reliably and physically protected, and the extra stress is very low, but the part of the display screen between the hard substrates arranged in the strip shape bears larger bending and tensile stress, which is the defect of the mechanism arranged in the strip shape with non-homogeneous anisotropy, and cannot be eradicated.
and thirdly, the flexible display screen is pasted on a homogeneous isotropic plane substrate which can be curled to provide far-end support, and moves along with the unfolding and rolling of the substrate without an additional far-end support mechanism.
For example, chinese patent publication No. CN107316566A discloses a rollable device and a rollable display device. The flexible magnetic strip group using the high polymer material as the substrate clamps and fixes the frame of the flexible display panel to realize the curling and the unfolding of the flexible display.
firstly, the device is in order to make things convenient for the magnetic stripe centre gripping, keeps sufficient mutual magnetic stripe area of inhaling simultaneously, and a wider frame region must be reserved to the display area periphery of display screen, can influence visual effect. Secondly, use the flexible magnetic stripe group of macromolecular material as the base member, display screen and magnetic stripe all are the flexibility in the device for whole mechanical properties still is the flexibility, and it is difficult to guarantee that the display area distal end can not warp flagging to expand the back screen. Thirdly, a mechanism with a magnetic component is used, so that fine magnetic particles can be adsorbed in actual use, and the screen is polluted and scratched.
Disclosure of Invention
the invention aims to provide a support substrate of a rollable display screen, a rollable display device and electronic equipment, which can ensure that the far end of a flexible display screen is not bent when the flexible display screen is unfolded without adding a far end support mechanism, can protect the flexible display screen when the flexible display screen is rolled, and avoids the flexible display screen from being scratched.
the technical scheme provided by the invention is as follows:
In one aspect, a support substrate for a rollable display screen is provided, including:
the flexible substrate is used for being attached to the flexible display screen;
the elastic layer is attached to one surface, far away from the flexible display screen, of the flexible substrate, and an accommodating groove is formed in one surface, close to the flexible substrate, of the elastic layer and extends along the unfolding direction of the flexible display screen;
the elastic supporting piece is arranged in the accommodating groove and extends along the unfolding direction of the flexible display screen, and when the flexible display screen is unfolded, the elastic supporting piece supports the flexible display screen to be in a planar state; when the flexible display screen is rolled, the elastic support can be rolled onto a reel along with the flexible display screen.
further, when the flexible display screen is unfolded, the elastic support is in a first state;
When the flexible display screen is curled, the elastic support is in a second state;
in the first state, the elastic support comprises a concave surface and a convex surface which are oppositely arranged, the concave surface is arranged towards the flexible substrate, and the convex surface is in contact with the elastic layer;
in the second state, the cross section of the elastic support member is flattened to be a straight line parallel to the reel.
further, in the first state, the cross section of the elastic support is arc-shaped.
further, the cross section of the elastic supporting part is in an arc shape with the radius of 4mm-40 mm.
further, in the first state, the cross section of the elastic support is wave-shaped.
further, in the second state, the width of the elastic supporting piece after being unfolded is 3mm-20 mm.
Further, the thickness of the elastic support is the same as the depth of the accommodating groove.
Furthermore, the number of the elastic supporting pieces is more than two;
more than two elastic supporting pieces are arranged at intervals along the axial direction of the reel.
furthermore, one surface of the elastic layer, which is far away from the flexible substrate, is provided with a bulge;
the bulge is located the edge of elastic layer and follows the expansion direction of flexible display screen extends, makes flexible display screen curls when on the spool, elastic layer with there is the clearance between the flexible display screen.
Furthermore, the flexible substrate is made of isotropic quenched carbon steel, quenched Mn alloy, quenched titanium alloy, or a composite material of carbon fiber and thermosetting resin, or polyimide, polyethylene terephthalate, or cyclic olefin copolymer.
Furthermore, the elastic support is made of quenched carbon steel, quenched Mn alloy, quenched titanium alloy or a composite material of carbon fiber and thermosetting resin.
Furthermore, the elastic layer is made of silica gel, latex, rubber, TPE, TPR or PU.
In another aspect, a rollable display device is also provided, which comprises a flexible display screen and a support substrate of the rollable display screen;
The flexible display screen is attached to one side, far away from the elastic layer, of the flexible substrate.
In still another aspect, an electronic device is provided, which includes a housing, a reel and the rollable display device;
The reel is arranged in the shell;
One end of the rollable display device is arranged in the shell and is rolled on the scroll.
The support substrate of the rollable display screen, the rollable display device and the electronic equipment provided by the invention have the following beneficial effects: the flexible substrate, the elastic layer and the elastic support piece are integrated into a support substrate, and after the support substrate is attached to the flexible display screen, the support substrate can provide supporting force for the flexible display screen during unfolding through the elastic support piece so as to prevent the flexible display screen from being bent; elastic support piece still can be along with flexible display screen on the spool, can make things convenient for whole display device that can curl's rolling.
in addition, when the flexible display screen is curled, the flexible substrate can provide reliable physical protection for the flexible display screen, and residual stress caused by curling and stretching during rolling is offset; when the flexible display screen is unfolded, the flexible substrate can also prevent the attached flexible display screen from bearing extra tensile stress, and the failure problem of the flexible display screen caused by frequent stretching and bending is solved, so that the reliability of the flexible display screen is improved, and the service life of the flexible display screen is prolonged. Moreover, elastic support piece sets up between flexible substrate and elastic layer, and the interval elastic layer between elastic support piece and the flexible display screen does not have direct contact each other, and when the flexible display screen curls, elastic layer and flexible display screen contact, the elastic layer can play the guard action to the flexible display screen, avoids elastic support piece fish tail flexible display screen.
Drawings
the above features, technical features, advantages and implementations of a support substrate for a rollable display screen, a rollable display device and an electronic apparatus will be further described in the following description of preferred embodiments in a clearly understandable manner with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a support substrate for a rollable display screen;
FIG. 2 is a schematic view of a support substrate of a rollable display screen in an unfolded configuration;
FIG. 3 is a schematic view of the structure of the elastic supporting member in an arc shape;
FIG. 4 is a cross-sectional view of the resilient support of FIG. 3;
FIG. 5 is a cross-sectional view of a rollable display screen with the support substrate unrolled;
FIG. 6 is a cross-sectional view of a support substrate of a rollable display rolled with a flexible display onto a spool;
FIG. 7 is a schematic side-projection configuration of a rollable display device;
FIG. 8 is a graph of bending moment performance of a support substrate;
FIG. 9 is a mechanical schematic diagram of a support substrate when it is bent in the forward direction;
FIG. 10 is a mechanical schematic of the support substrate during reverse bending;
FIG. 11 is a schematic view of the structure of the elastic supporting member in a wave shape;
FIG. 12 is a cross-sectional view of the resilient support of FIG. 11;
FIG. 13 is a schematic flow chart of continuous rolling;
FIG. 14 is a schematic flow chart of intermittent press fit;
FIG. 15 is a schematic view of a display device being rolled back on a spool;
FIG. 16 is a simulated state diagram of the electronic device when the rollable display device is rolled back;
FIG. 17 is a schematic view of a rollable display device being rolled onto a spool;
FIG. 18 is a simulated state diagram of the electronic device when the rollable display is rolled.
description of the reference numerals
1. A flexible substrate; 2. an elastic layer; 21. accommodating grooves; 3. an elastic support member; 31. a concave surface; 32. a convex surface; 4. a flexible display screen; 5. a protrusion; 6. a reel.
Detailed Description
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
for the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
in one aspect, the present invention provides a support substrate for a rollable display screen, and referring to fig. 1, the support substrate for the rollable display screen includes a flexible substrate 1, an elastic layer 2, and an elastic support 3.
the flexible substrate 1 is used for being attached to the flexible display screen 4; the flexible substrate 1 is fixedly connected with the flexible display screen 4 by gluing. The flexible substrate 1 may be made of high-strength homogeneous isotropic material, such as quenched carbon steel, quenched Mn alloy, quenched titanium alloy, or other metal material with performance similar to or higher than that of quenched carbon steel, or composite material of carbon fiber and thermosetting resin, or polyimide, polyethylene terephthalate, or cycloolefin copolymer. Preferably, the flexible substrate 1 has a thickness in the range of 0.05mm to 0.8 mm.
Elastic layer 2 is used for keeping away from the one side laminating of flexible display screen 4 with flexible substrate 1, and elastic layer 2 is close to the one side of flexible substrate 1 and is equipped with holding tank 21, and holding tank 21 extends along the expansion direction of flexible display screen 4. The elastic layer 2 and the flexible substrate 1 may be fixedly attached by gluing, although other adhesion techniques (e.g. heat welding) are also contemplated. The elastic layer 2 is a homogeneous elastic sheet, and the material of the elastic layer 2 may be elastic material such as silica gel, latex, rubber, TPE, TPR or TU. The thickness of the elastic layer 2 ranges from 0.2mm to 0.8 mm.
The elastic supporting piece 3 is arranged in the accommodating groove 21 and extends along the unfolding direction of the flexible display screen 4, and when the flexible display screen 4 is unfolded, the elastic supporting piece 3 supports the flexible display screen 4 to be in a planar state; when the flexible display 4 is rolled up, the elastic support 3 may be rolled up with the flexible display 4 onto a reel. When installation elastic support element 3, not the rubber coating in the holding tank 21 of elastic layer 2, elastic support element 3 directly places in holding tank 21, carries on spacingly through holding tank 21 to elastic support element 3.
the elastic support 3 has a unidirectional bending characteristic, and the unidirectional bending characteristic of the elastic support 3 can be realized by a specific structure. Assuming that the elastic supporting member 3 includes a surface a and a surface B, the unidirectional bending characteristic means that the bending strength is high when the surface a is bent toward the surface B to provide a proper supporting force when the flexible display screen 4 is unfolded, and the bending strength is low when the surface B is bent toward the surface a to enable the elastic supporting member 3 to be curled onto the reel along with the flexible display screen 4.
the number of the elastic supporting members 3 can be set according to the size and weight of the flexible display screen 4, for example, set to be 1 or more, so that the flexible display screen 4 does not flex when being unfolded; when the number of the elastic supports 3 is plural, the plural elastic supports 3 are provided at intervals in the axial direction of the reel.
In this embodiment, the flexible substrate 1, the elastic layer 2 and the elastic support member 3 are integrated into a support substrate, and after the support substrate is attached to the flexible display screen 4, the elastic support member 3 can provide a support force for the flexible display screen 4 during unfolding so as to prevent the flexible display screen 4 from being bent; elastic support piece 3 still can be along with flexible display screen 4 on the spool of rolling together, can make things convenient for whole display device that can curl's rolling.
In addition, when the flexible display screen 4 is curled, the flexible substrate 1 can provide reliable physical protection for the flexible display screen 4, and offset residual stress caused by curling and stretching during rolling; when the flexible display screen 4 is unfolded, the flexible substrate 1 can also prevent the attached flexible display screen 4 from bearing extra tensile stress, and the failure problem of the flexible display screen 4 caused by frequent stretching and bending is solved, so that the reliability of the flexible display screen 4 is improved, and the service life of the flexible display screen 4 is prolonged. Moreover, elastic support member 3 sets up between flexible substrate 1 and elastic layer 2, and interval elastic layer 2 between elastic support member 3 and the flexible display screen 4 does not have direct contact each other, and when flexible display screen 4 curls, elastic layer 2 and the contact of flexible display screen 4, elastic layer 2 can play the guard action to flexible display screen 4, avoids 3 fish tail flexible display screen 4 of elastic support member.
In one embodiment, referring to fig. 2 to 6 together, when the flexible display 4 is unfolded, the cross section of the elastic supporting member 3 is arc-shaped, the elastic supporting member 3 with the arc-shaped cross section includes a pair of concave surfaces 31 and convex surfaces 32, which are oppositely disposed, the concave surfaces 31 are disposed toward the flexible substrate 1, and the convex surfaces 32 are in contact with the accommodating grooves 21. When the flexible display 4 is rolled, the cross section of the elastic support 3 is flattened to be a straight line parallel to the roll axis.
As shown in fig. 2 and 5, when the support substrate is unfolded, it can be seen that a plurality of strip-shaped ridges formed by the elastic support members 3 are formed on the back to support the flexible display 4; as shown in fig. 6, when the support substrate is curled, the elastic support 3 is spread and received in the receiving groove 21 of the elastic layer 2, and the back of the support substrate does not have any protrusion.
in this embodiment, elastic support member 3 realizes the one-way characteristic of bending through the arc structure, and when flexible display screen 4 expanded, elastic support member 3's cross section was the arc, and concave surface 31 sets up towards flexible substrate 1, and convex surface 32 and holding tank 21 contact, and it is big to bend intensity when bending to convex surface 32 by concave surface 31, can support flexible display screen 4, and it is little to bend intensity when bending to concave surface 31 by convex surface 32, is fit for curling.
the elastic support 3 has not only a one-way bending characteristic but also a shape memory function. When the flexible display screen 4 is unfolded, the elastic support 3 is in an initial state (i.e. an arc shape); when the flexible display screen 4 is curled, the elastic supporting member 3 is flattened to be parallel to the plane of the flexible display screen 4 under the action of external force; when the flexible display 4 is unfolded again, the elastic support 3 is restored to the original state.
The elastic supporting member 3 is directly placed in the accommodating groove 21, and when the flexible display screen 4 is unfolded, the accommodating groove 21 protrudes outwards under the action of the convex surface 32 of the elastic supporting member 3, and the protrusion gives elastic binding and limiting to the convex surface 32 of the elastic supporting member 3. When the flexible display screen 4 is rolled, the elastic support member 3 is unfolded to be a flat surface (i.e., the cross section is flattened to be a straight line) to reduce the protruding height of the elastic layer 2, so that the volume of the rollable display device when rolled can be reduced.
Preferably, the thickness of the elastic support 3 is the same as the depth of the receiving groove 21, and the unwinding width of the elastic support 3 is less than or equal to the width of the receiving groove 21 in the axial direction of the spool. After the elastic supporting member 3 is unfolded to be flat, the elastic supporting member 3 is accommodated in the accommodating groove of the elastic layer 2, so that the elastic layer 2 has no any protrusion, thereby further reducing the volume of the rollable display device when being rolled.
when the number of the elastic support members 3 is plural, the plural elastic support members 3 are arranged in parallel with each other. The material of the elastic support 3 may be quenched carbon steel, or quenched Mn alloy, or quenched titanium alloy, or a material in which carbon fibers are compounded with a thermosetting resin. Preferably, the thickness of the elastic support 3 ranges from 0.05mm to 0.4 mm; the spread width range is 3mm-20 mm; the initial state has an arc shape of r4mm to r40mm in cross section.
As shown in fig. 7, the flexible display screen 4 is attached to the support substrate formed by combining the arc-shaped elastic support members 3, so that the one-way bending characteristic of the whole rollable display device is realized, the rollable display device is not easy to bend in one direction, the rollable display device is a display plane when being unfolded, no obvious far-end sagging phenomenon occurs, and by increasing the number of the elastic support members 3, when the whole rollable display device extends to 400mm in the horizontal direction, no obvious phenomenon that the visual effect is affected by the far-end sagging occurs; meanwhile, the whole display device capable of being curled is easy to bend in the other direction and convenient to roll.
After the elastic support member 3, the flexible substrate 1 and the elastic layer 2 are integrated into an integrated support substrate, the support substrate is bent and analyzed to obtain a bending moment performance curve chart shown in fig. 8, wherein in fig. 8, the abscissa represents the bending radian psi and the ordinate represents the bending moment M;Representing a reverse critical bending moment;Representing a positive critical bending moment;representing a reverse unwinding bending moment;Representing a positive unwinding bending moment.
Referring to fig. 9 and 10, the flexible display 4 is positioned above the supporting substrate and has a critical bending momentAndShowing the rigidity of the support substrate against external forces after deployment. Wherein the critical bending momentIndicating the stability of the distal support supporting the substrate,the larger the size, the less the distal end of the support substrate to which the flexible display panel 4 is attached is likely to sag. Faceboundary bending momentIt indicates that the distal end of the support substrate can resist a certain moment of upward pulling. Unfolding bending momentShowing a reverse curling bending moment (reverse unwinding bending moment) of the support substrate,The support substrate positive curling bending moment (positive unwinding bending moment) is shown.
referring to FIG. 8, after the support substrate is unfolded, the bending moment M and the substrate bending radian ψ have the following relationship:
(1) When the distal end of the support substrate is subjected to a reverse bending moment (a force from the top to the bottom), a high rigidity is exhibited in an initial stage (the bending radian psi of the support substrate is about 5 DEG to about 8 DEG), and when the external reverse bending moment reaches a critical bending momentThe support substrate may remain slightly flexed while still. Like this, when the supporting substrate expandes, can directly provide stable plane for flexible display screen 4 and support, avoid 4 distal ends of flexible display screen to hang down and influence visual effect.
(2) When the external reverse bending moment exceeds the critical bending momentWhen the bending moment is generated, the rigidity of the supporting base plate is sharply reduced, and the buckling deformation is generated, and finally, the steady-state bending moment (reverse expansion bending moment) is achievedin this state, the substrate can be continuously curled only by a relatively low bending moment, which is also called as an unfolding bending moment. When the supporting substrate is rolled, the winding bending force is low, and the display device which can be rolled is easy to roll. In practical application, one end of the rollable display device is arranged in the housing of the electronic equipment, and is pre-rolled on the reel,The support substrate pre-wound on the reel has reached a steady state bending momentSo that the rollable display device is easy to roll up.
(3) when the distal end of the support substrate is subjected to a forward bending moment (a downward force), the conditions are similar to those discussed in (1) and (2), except that the corresponding forward bending moment is lower in magnitude than the reverse bending moment.
(4) The support substrate has the characteristic of one-way bending, the reverse critical bending moment is larger than the forward critical bending moment, the reverse unfolding and rolling bending moment is slightly larger than the forward unfolding and rolling bending moment, and the critical bending moment is far larger than the unfolding and rolling bending moment.
As can be appreciated from the above description,The size of (a) may directly determine the rigidity of the distal planar support that the support substrate may provide,andThe rollability of the support substrate is determined.
In the actual design process, the critical bending moment can be obtained by solving the maximum value of the following equation
wherein the content of the first and second substances,
m is a bending moment; w is the support substrate width; h is the thickness of the flexible substrate; n is the number of the elastic supporting pieces; theta is the central angle radian of the cross section of the elastic supporting piece; t is the thickness of the elastic support; r is0is the elastic support interface curvature; b is the expansion width of the elastic support; a is the bending radian of the support substrate; e is the elastic modulus of the support substrate; u is the support substrate poisson's ratio.
The calculation formula of the unfolding bending moment is as follows:
Wherein w is the support substrate width; h is the thickness of the flexible substrate; n is the number of the elastic supporting pieces; theta is the central angle radian of the cross section of the elastic supporting piece; t is the thickness of the elastic support; r is0is the elastic support interface curvature; b is the expansion width of the elastic support; a is the bending radian of the support substrate; e is the elastic modulus of the support substrate; u is the support substrate poisson's ratio.
Data values of mechanical property Ansys finite element simulation analysis performed on the supporting substrate in the present embodiment are shown in table 1, in which the width of the supporting substrate used is 120 mm; the developed width of the elastic support 3 is 10 mm; the number of the elastic supports 3 used is 3.
TABLE 1
In one embodiment, referring to fig. 11 and 12, when the flexible display panel 4 is unfolded, the cross section of the elastic supporting member 3 is wavy, and the elastic supporting member 3 includes a plurality of pairs of concave surfaces 31 and convex surfaces 32 that are oppositely disposed, for example, when the cross section of the elastic supporting member 3 is two half waves, the elastic supporting member 3 includes two pairs of concave surfaces 31 and convex surfaces 32 that are oppositely disposed, and when the cross section of the elastic supporting member 3 is three half waves, the elastic supporting member 3 includes three pairs of concave surfaces 31 and convex surfaces 32 that are oppositely disposed. Wherein at least one concave surface 31 is disposed toward the flexible substrate 1, and a convex surface 32 disposed opposite to the concave surface 31 is in contact with the accommodation groove 21. When the flexible display 4 is rolled up, the elastic support 3 is unfolded parallel to the plane of the flexible display 4.
As can be seen from the analysis of fig. 8, the supporting substrate with the unidirectional bending characteristic formed by the elastic supporting member 3 having the arc-shaped cross section has a reverse critical bending moment greater than a forward critical bending moment, a reverse unwinding winding bending moment slightly greater than a forward unwinding winding bending moment, and a critical bending moment much greater than an unwinding winding bending moment.
However, in practical use, it is not only required to ensure that the whole rollable display device is not deflected downward when unfolded, but also required to ensure that the whole rollable display device is not blown upward by an external force (such as natural wind) when unfolded, which requires to reduce the difference that the reverse critical bending moment is larger than the forward critical bending moment, i.e. the support substrate has excellent rigidity in the forward and reverse directions, and simultaneously, the characteristics that the reverse unfolding and winding bending moment is slightly larger than the forward unfolding and winding bending moment and the critical bending moment is much larger than the unfolding and winding bending moment are maintained as much as possible. In order to provide the support substrate with a considerably excellent rigidity in both the forward and reverse directions, the cross section of the elastic support 3 may be provided in a wave shape.
Under the condition of ensuring that the expansion width of the elastic support member 3 is not changed, the cross section of the elastic support member 3 is set to be wave-shaped, so that the difference between the reverse critical bending moment and the forward critical bending moment of the support substrate can be further reduced, and the rigidity of the support substrate in the forward direction and the reverse direction and the capability of resisting external disturbance are similar.
In the present embodiment, it is preferable that the cross section of the elastic support 3 includes 3 half waves at most. When the cross section of elastic support member 3 is 2 or 3 half waves, can make the rigidity that supports the base plate and have two positive and negative directions to make two positive and negative directions resist the ability of external disturbance similar, but when continuing to increase half-wave quantity, can lead to elastic support member 3 to be difficult to by the exhibition flat when curling to the spool along with flexible display screen 4 together, can increase the rolling volume that can curl the display device, consequently, when needs increase elastic support member 3's holding power, the accessible increases elastic support member 3's quantity and realizes.
In one embodiment, referring to fig. 5 and fig. 6, a protrusion 5 is further disposed on a side of the elastic layer 2 away from the flexible substrate 1, and the protrusion 5 is located at an edge of the elastic layer 2 and extends along an extending direction of the flexible display 4. The edge of the elastic layer 2 is provided with the bulge 5, when the supporting substrate is curled on the reel along with the flexible display screen 4, a gap is formed between the elastic layer 2 and the flexible display screen 4, so that the bottom of the supporting substrate (the elastic layer 2) is not in surface contact with the flexible display screen 4, and the surface of the flexible display screen 4 is not rubbed by the interlayer relative motion when the flexible display screen 4 is rolled or unfolded, so that the elastic supporting piece is prevented from scratching the flexible display screen, and the effect of protecting the flexible display screen 4 is achieved; meanwhile, damage such as scraping of foreign matters on the flexible display screen 4 during rolling can be avoided, and physical protection of reliability and durability is provided for the flexible display screen 4. The height of the protrusions 5 ranges from 0.1mm to 0.4 mm; the width of the protrusions 5 ranges from 0.8mm to 5 mm. The height of the protrusions 5 should be as small as possible in order not to excessively increase the rolling volume of the rollable display device.
The support substrate mainly comprises the following manufacturing steps:
(1) positioning and combining the flexible substrate, the elastic support and the preformed elastic layer coated with the glue layer;
(2) attaching a flexible substrate to an elastic support and a preformed elastic layer coated with an adhesive layer;
(3) Maintaining the pressure;
(4) and (6) cutting and blanking.
During specific implementation, the method can be realized in two modes of continuous rolling and intermittent pressing.
Referring to fig. 13, the continuous rolling process includes:
s1 flexible substrate roll-type feeding;
s2 feeding the elastic support piece in a roll shape;
s3 roll-type feeding of the preformed and glued elastic layer;
s4, stripping the adhesive surface release paper from the preformed and glued elastic layer;
s5 fit front sheet guide orientation;
S6, attaching, wherein the pressing force and the tension of the elastic layer need to be controlled to control the residual stress of the elastic layer after molding;
s7, maintaining pressure, namely maintaining pressure for a plurality of groups, and controlling the residual stress of the formed elastic layer in a mode of increasing the pressing force in a gradient manner;
S8 continuous blanking.
Referring to fig. 14, the manufacturing method of the intermittent press-fit is as follows:
S9, after blanking, the finished product without any process positioning feature;
s10, before pressing, the elastic layer with process positioning holes and in a positioning state, the accommodating groove for accommodating the elastic supporting piece is not coated with glue, and the surface of the part attached to the flexible substrate is coated with glue;
S11 pressing the elastic supporting member with the process positioning hole;
S12 pressing the flexible substrate with the process positioning hole;
S13, peeling off the adhesive surface release paper, and peeling off the adhesive surface of the preformed elastic layer;
S14 pre-forming an adhesive surface release paper stripped by the elastic layer;
S15, loading and positioning the elastic layer with the process positioning holes;
S16 peeling the elastic layer off the adhesive surface release paper;
s17, loading and positioning the elastic support with the process positioning hole and the flexible substrate;
S18 fitting;
S19, maintaining the pressure;
S20 blanking and cutting off the positioning features.
On the other hand, the embodiment of the present application further provides a rollable display device, as shown in fig. 6 and 7, including a flexible display screen 4 and the aforementioned support substrate of the rollable display screen, where the flexible display screen 4 is attached to a side of the flexible substrate away from the elastic layer 2, and in fig. 7, the flexible display screen 4 is disposed above the support substrate. The flexible display 4 is a flexible display device made of a soft material that can be deformed and bent. The rollable display device can be applied to various electronic terminals, such as tablet computers, mobile phones, electronic readers, remote controllers, notebook computers and the like. The circuit of the flexible display screen 4 can be arranged as close as possible to a neutral plane with zero bending stress, so that the internal residual stress is minimum when the flexible display screen 4 is rolled.
The thickness of the support substrate of the display screen capable of being curled can reach 0.15-0.2 mm, the support substrate and the flexible display screen 4 are attached to the support substrate, the rolling state volume of the display device capable of being curled cannot be increased additionally, and the display device capable of being curled is prevented from losing practical significance.
the supporting substrate has a unidirectional bending characteristic, namely, relative to the display surface of the flexible display screen 4, the bending strength of the supporting substrate to the back surface of the display surface is higher, and higher ultimate bending moment exists in a smaller bending range of the supporting substrate, so that reliable plane support is provided for the flexible display screen 4 during unfolding, and the visual effect is prevented from being influenced by the droop of the far end of the flexible display screen 4; and the other bending direction, namely the bending strength towards the front of the display surface is small, so that the display device is easy to bend, the extra increase of the bending moment during rolling can not be caused, and the display device which can be curled is easy to curl. When the elastic supporting member 3 in the supporting substrate is rolled, it is accommodated in the accommodating groove 21 of the elastic layer 2, and there is no protrusion on the supporting substrate.
High strength material is chooseed for use to flexible substrate for support substrate's intensity is high, can provide sufficient anti stabbing, tear intensity for flexible display screen 4 when can curl the display device and expand the use, and when the display device can curl in the rolling, by support substrate bearing stress. The support substrate also has creep resistance and will not undergo significant deflection upon long-term roll-up and unrolling.
the support substrate has an additional function of protecting the screen surface, so that when the rollable display is in a rolled state, the back surface of the support substrate can provide physical protection for the surface of another layer of display screen, and scratch and the like of the flexible display screen 4 caused by rolling foreign matters during rolling are avoided, so that the reliability and durability of the flexible display screen 4 are ensured.
in still another aspect, the present embodiment further provides an electronic device, including a housing, a reel 6, and the rollable display device; the scroll 6 is arranged in the shell; one end of the rollable display device is disposed within the housing and is rolled onto the spool 6.
when the rollable display device formed by attaching the support substrate and the flexible display screen 4 is rolled, two use forms of forward rolling and backward rolling are allowed.
Referring to table 1, when the flexible substrate 1 and the elastic support 3 have a thickness of 0.15mm or less, the curling bending moment is greater in the reverse winding than in the forward winding, but the difference between the bending moments is not so large.
In the practical use of the reel display mechanism, the actual visual effect is greatly different, and fig. 15 and 16 are schematic views of the state of the support substrate in the rewinding use, and the horizontal fall between the unwound rollable display device and the side fixed screen is small.
Fig. 17 and 18 are schematic views showing the support substrate in a rolled state in which the unrolled rollable display device is horizontally separated from the side fixing panel by a large distance. In practical use, the forward rolling or the backward rolling of the support substrate can be determined according to practical requirements.
it should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (14)
1. a support substrate for a rollable display screen, comprising:
The flexible substrate is used for being attached to the flexible display screen;
The elastic layer is attached to one surface, far away from the flexible display screen, of the flexible substrate, and an accommodating groove is formed in one surface, close to the flexible substrate, of the elastic layer and extends along the unfolding direction of the flexible display screen;
The elastic supporting piece is arranged in the accommodating groove and extends along the unfolding direction of the flexible display screen, and when the flexible display screen is unfolded, the elastic supporting piece supports the flexible display screen to be in a planar state; when the flexible display screen is rolled, the elastic support can be rolled onto a reel along with the flexible display screen.
2. a support substrate for a rollable display screen according to claim 1,
when the flexible display screen is unfolded, the elastic support piece is in a first state;
when the flexible display screen is curled, the elastic support is in a second state;
in the first state, the elastic support comprises a concave surface and a convex surface which are oppositely arranged, the concave surface is arranged towards the flexible substrate, and the convex surface is in contact with the elastic layer;
in the second state, the cross section of the elastic support member is flattened to be a straight line parallel to the reel.
3. A support substrate for a rollable display screen according to claim 2,
in the first state, the cross section of the elastic support part is arc-shaped.
4. a support substrate for a rollable display screen according to claim 3,
the cross section of the elastic support part is an arc with the radius of 4mm-40 mm.
5. a support substrate for a rollable display screen according to claim 2,
In the first state, the cross section of the elastic support is wave-shaped.
6. a support substrate for a rollable display screen according to claim 2,
And in the second state, the width of the elastic supporting piece after being unfolded is 3mm-20 mm.
7. A support substrate for a rollable display screen according to any one of claims 1 to 5,
The thickness of the elastic supporting piece is the same as the depth of the accommodating groove.
8. a support substrate for a rollable display screen according to any one of claims 1 to 5,
The number of the elastic supporting pieces is more than two;
More than two elastic supporting pieces are arranged at intervals along the axial direction of the reel.
9. A support substrate for a rollable display screen according to claim 1,
A bulge is arranged on one surface of the elastic layer, which is far away from the flexible substrate;
The bulge is located the edge of elastic layer and follows the expansion direction of flexible display screen extends, makes flexible display screen curls when on the spool, elastic layer with there is the clearance between the flexible display screen.
10. A support substrate for a rollable display screen according to claim 1,
the flexible substrate is made of isotropic quenched carbon steel, quenched Mn alloy, quenched titanium alloy, or a material compounded by carbon fiber and thermosetting resin, or polyimide, polyethylene terephthalate or cyclic olefin copolymer.
11. a support substrate for a rollable display screen according to claim 1,
the elastic support piece is made of quenched carbon steel, quenched Mn alloy, quenched titanium alloy or a material compounded by carbon fiber and thermosetting resin.
12. A support substrate for a rollable display screen according to claim 1,
the elastic layer is made of silica gel, latex, rubber, TPE, TPR or PU.
13. a rollable display device comprising a flexible display and a support substrate for the rollable display of any one of claims 1 to 12;
The flexible display screen is attached to one side, far away from the elastic layer, of the flexible substrate.
14. an electronic apparatus comprising a housing, a reel, and the rollable display device of claim 13;
The reel is arranged in the shell;
One end of the rollable display device is arranged in the shell and is rolled on the scroll.
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| CN201910974449.0A CN110580859A (en) | 2019-10-14 | 2019-10-14 | support substrate of rollable display screen, rollable display device and electronic apparatus |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510524A (en) * | 2020-04-01 | 2020-08-07 | 维沃移动通信有限公司 | Electronic device |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011008054A (en) * | 2009-06-26 | 2011-01-13 | Osm:Kk | Magnet screen |
| CN105611006A (en) * | 2015-12-29 | 2016-05-25 | 广东欧珀移动通信有限公司 | Foldable terminal with flexible screen |
| WO2016185754A1 (en) * | 2015-05-19 | 2016-11-24 | 株式会社Ｊｏｌｅｄ | Functional element, display device, and image pickup device |
| CN107170370A (en) * | 2017-05-12 | 2017-09-15 | 京东方科技集团股份有限公司 | Display module |
| US20170359911A1 (en) * | 2016-06-09 | 2017-12-14 | Samsung Display Co., Ltd. | Rollable display device |
| CN107564415A (en) * | 2017-08-28 | 2018-01-09 | 上海天马有机发光显示技术有限公司 | Flexible display panels, display device and preparation method thereof |
| CN107636570A (en) * | 2016-06-28 | 2018-01-26 | 深圳市柔宇科技有限公司 | Flexible apparatus |
| CN108154802A (en) * | 2018-01-16 | 2018-06-12 | 惠州市华星光电技术有限公司 | Flexible display device |
| CN208014279U (en) * | 2018-04-12 | 2018-10-26 | 北京京东方光电科技有限公司 | Flexible display panels and flexible display apparatus |
| US20190036049A1 (en) * | 2017-07-31 | 2019-01-31 | Lg Display Co., Ltd. | Display device with rollable display panel |
| KR20190025799A (en) * | 2017-09-01 | 2019-03-12 | 희성전자 주식회사 | Supporting substrate for flexible display apparatus, method of manufacturing the substrate, and flexible display apparatus having the substrate |
| WO2019111577A1 (en) * | 2017-12-07 | 2019-06-13 | ソニー株式会社 | Display device |
| CN210378190U (en) * | 2019-10-14 | 2020-04-21 | 刘燕庭 | Support substrate of rollable display screen, rollable display device and electronic apparatus |
-
2019
- 2019-10-14 CN CN201910974449.0A patent/CN110580859A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011008054A (en) * | 2009-06-26 | 2011-01-13 | Osm:Kk | Magnet screen |
| WO2016185754A1 (en) * | 2015-05-19 | 2016-11-24 | 株式会社Ｊｏｌｅｄ | Functional element, display device, and image pickup device |
| CN105611006A (en) * | 2015-12-29 | 2016-05-25 | 广东欧珀移动通信有限公司 | Foldable terminal with flexible screen |
| US20170359911A1 (en) * | 2016-06-09 | 2017-12-14 | Samsung Display Co., Ltd. | Rollable display device |
| CN107636570A (en) * | 2016-06-28 | 2018-01-26 | 深圳市柔宇科技有限公司 | Flexible apparatus |
| US20190043390A1 (en) * | 2016-06-28 | 2019-02-07 | Shenzhen Royole Technologies Co., Ltd. | Flexible Device |
| CN107170370A (en) * | 2017-05-12 | 2017-09-15 | 京东方科技集团股份有限公司 | Display module |
| US20190036049A1 (en) * | 2017-07-31 | 2019-01-31 | Lg Display Co., Ltd. | Display device with rollable display panel |
| CN107564415A (en) * | 2017-08-28 | 2018-01-09 | 上海天马有机发光显示技术有限公司 | Flexible display panels, display device and preparation method thereof |
| KR20190025799A (en) * | 2017-09-01 | 2019-03-12 | 희성전자 주식회사 | Supporting substrate for flexible display apparatus, method of manufacturing the substrate, and flexible display apparatus having the substrate |
| WO2019111577A1 (en) * | 2017-12-07 | 2019-06-13 | ソニー株式会社 | Display device |
| CN108154802A (en) * | 2018-01-16 | 2018-06-12 | 惠州市华星光电技术有限公司 | Flexible display device |
| CN208014279U (en) * | 2018-04-12 | 2018-10-26 | 北京京东方光电科技有限公司 | Flexible display panels and flexible display apparatus |
| CN210378190U (en) * | 2019-10-14 | 2020-04-21 | 刘燕庭 | Support substrate of rollable display screen, rollable display device and electronic apparatus |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113037893A (en) * | 2019-12-24 | 2021-06-25 | Oppo广东移动通信有限公司 | Electronic device |
| CN113037897B (en) * | 2019-12-24 | 2023-08-29 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN113037897A (en) * | 2019-12-24 | 2021-06-25 | Oppo广东移动通信有限公司 | Electronic device |
| CN113037896A (en) * | 2019-12-24 | 2021-06-25 | Oppo广东移动通信有限公司 | Flexible screen assembly and electronic equipment |
| CN113037896B (en) * | 2019-12-24 | 2022-06-14 | Oppo广东移动通信有限公司 | Flexible screen assembly and electronic equipment |
| WO2021190061A1 (en) * | 2020-03-23 | 2021-09-30 | 深圳光峰科技股份有限公司 | Height-adjustable screen |
| CN111510524A (en) * | 2020-04-01 | 2020-08-07 | 维沃移动通信有限公司 | Electronic device |
| WO2021228549A1 (en) * | 2020-05-11 | 2021-11-18 | Technische Universität Dresden | Flexible display apparatus, method for stabilizing at least one geometric configuration of a flexible display apparatus, rollable projection wall, and method for stabilizing an unrolled configuration of a rollable projection wall |
| CN114005357A (en) * | 2020-07-28 | 2022-02-01 | 华为技术有限公司 | Screen supporting device and electronic equipment |
| CN112053635A (en) * | 2020-09-16 | 2020-12-08 | 京东方科技集团股份有限公司 | Supporting structure, manufacturing method thereof and display device |
| CN112599022A (en) * | 2021-01-06 | 2021-04-02 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN113066362A (en) * | 2021-03-05 | 2021-07-02 | 武汉华星光电半导体显示技术有限公司 | Supporting plate, manufacturing method thereof and flexible display device |
| CN113066362B (en) * | 2021-03-05 | 2022-09-27 | 武汉华星光电半导体显示技术有限公司 | Supporting plate, manufacturing method thereof and flexible display device |
| CN113110781A (en) * | 2021-03-15 | 2021-07-13 | 联想(北京)有限公司 | Control method, electronic device and storage medium |
| CN112866462A (en) * | 2021-03-30 | 2021-05-28 | 北京剑视通讯科技有限公司 | Hand-held multimedia terminal |
| CN112866462B (en) * | 2021-03-30 | 2023-08-08 | 北京剑视元宇科技有限公司 | Hand-held multimedia terminal |
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| CN113763821A (en) * | 2021-09-27 | 2021-12-07 | 深圳市华星光电半导体显示技术有限公司 | Flexible display device |
| CN114023199A (en) * | 2021-11-23 | 2022-02-08 | 湖北长江新型显示产业创新中心有限公司 | Rollable display device |
| CN114023199B (en) * | 2021-11-23 | 2023-10-27 | 湖北长江新型显示产业创新中心有限公司 | Rollable display device |
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| CN114815975A (en) * | 2022-03-30 | 2022-07-29 | 广州邦通商务咨询有限公司 | Bendable electronic equipment |
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| CN115294863B (en) * | 2022-06-30 | 2023-09-15 | 武汉天马微电子有限公司 | Display device and mobile terminal |
| CN115691338A (en) * | 2022-11-10 | 2023-02-03 | 业成科技（成都）有限公司 | Display panel and display device |
| CN117153042A (en) * | 2023-01-13 | 2023-12-01 | 荣耀终端有限公司 | Folding screen device and method for manufacturing fiber composite board |
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