CN108346376A - Flexible module and flexible display device - Google Patents
Flexible module and flexible display device Download PDFInfo
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- CN108346376A CN108346376A CN201810055517.9A CN201810055517A CN108346376A CN 108346376 A CN108346376 A CN 108346376A CN 201810055517 A CN201810055517 A CN 201810055517A CN 108346376 A CN108346376 A CN 108346376A
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- film layer
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- film
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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
Abstract
The invention discloses a kind of flexible module and flexible display device, the flexibility module includes：The first film layer and the second film layer being bonded to each other, first film layer is towards being formed with the first coarse structure on at least partly surface of second film layer side；Second film layer is towards being formed with the second coarse structure on at least partly surface of first film layer side；Wherein, first coarse structure and second coarse structure are oppositely arranged and gapless is bonded.After the first film layer and the fitting of the second film layer, the second coarse structure on the first coarse structure and the second film layer in first film layer contacts with each other, this makes the frictional force between the first film layer and the second film layer increase, therefore can be to avoid the first film layer and the second film layer unsticking, lamination caused by sliding mutually in the process of bending.
Description
Technical field
The present embodiments relate to flexible display device manufacturing technology field more particularly to a kind of flexible module and flexibility are aobvious
Show equipment.
Background technology
With the development of flexible display technologies, the application of flexible module is more and more.Flexible module generally includes stacking
Multi-layer film structure.In practical applications, flexible module can be usually bent, soft during being bent to flexible module
Property module in two film layers being bonded to each other due to being acted on by shearing force, easily occur the case where layering, unsticking, leading to corresponding membrane
The disabler of layer.
The technical issues of unsticking easy for two film layers being bonded to each other in above-mentioned flexible module, the prior art is usually two
Thicker optical cement is coated between a film layer, to increase the binding force between two film layers, final two film layer unstickings of reduction
Possibility.
However, coating thicker optical cement between film layer, entire flexible module can be made to thicken, after flexible module thickens
(ε=h/2r, ε are the maximum strain of flexible module, h for the maximum strain raising that entire module can be made suffered during bending
For the thickness of flexible module, r is the bending radius of each film layer in flexible module), to make the bending stress suffered by each film layer (draw
Stress or compression) also opposite raising, this makes the effect of prevent from being bonded to each other two film layer unstickings still undesirable.
Invention content
A kind of flexible module of offer of the embodiment of the present invention and flexible display device, during solving flexible module bending
Two film layers being bonded to each other are easy the technical issues of unsticking.
In a first aspect, the embodiment of the present invention provides a kind of flexible module, the flexibility module includes：First be bonded to each other
Film layer and the second film layer, wherein first film layer is towards being formed on at least partly surface of second film layer side
One coarse structure；Second film layer is towards being formed with the second coarse knot on at least partly surface of first film layer side
Structure；First coarse structure and second coarse structure are oppositely arranged and gapless is bonded.
Optionally, first coarse structure is arranged around the edge of first film layer, the second coarse structure ring
It is arranged around the edge of second film layer.
Optionally, in the apparent surface of first film layer and second film layer, first coarse structure is not formed
And the partial vacuum absorption fitting of second coarse structure.
Optionally, the surface roughness of first coarse structure is between 5~8 μm；And/or the second coarse knot
The surface roughness of structure is between 5~8 μm.
Optionally, the surface roughness phase of the surface roughness of first coarse structure and second coarse structure
Together.
Optionally, first film layer is coarse towards being formed with first on at least partly surface of second film layer side
Film layer, first coarse structure are formed in the described first coarse film layer；And/or second film layer is towards described first
The second coarse film layer is formed on at least partly surface of film layer side, it is coarse that second coarse structure is formed in described second
In film layer.
Optionally, the thickness of the described first coarse film layer is identical with the thickness of the described second coarse film layer.
Optionally, the material used in the first coarse film layer and the second coarse film layer is formed separately to be selected from
One or more of silicon carbide, silica and silicon nitride.
Second aspect, the embodiment of the present invention provide a kind of flexible display device, including：First aspect present invention provides soft
Property module.
Optionally, the flexible module includes：OLED display panel and the touch-control being fitted in the OLED display panel
Panel, the barrier layer for being located at the OLED display panel top layer is the first film layer, and the substrate positioned at the touch panel bottom is
Second film layer.
Using a kind of flexible module of the present invention and flexible display device, after the first film layer and the fitting of the second film layer, the
The second coarse structure on the first coarse structure and the second film layer in one film layer contacts with each other, this makes the first film layer and second
Frictional force between film layer increases, the contact interface institute of the first film layer and the second film layer when so as to inhibit flexible module to bend
The shearing force received, and then without optical cement, it will be able to effectively avoid the first film layer and the second film layer because mutually
Unsticking, lamination caused by mutually sliding；Moreover, in view of between the first coarse structure and the second coarse structure without using optics
Glue will not be such that the thickness of flexible module increases, to the maximum that entire flexible module will not be made suffered during bending
Strain increases, this plays the role of anti-unsticking from another angle.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and constitutes the part of the present invention, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Figure 1A-Fig. 1 C are a kind of principle schematic that unsticking occurs for two film layers being bonded to each other in flexible module；
Fig. 2A-Fig. 2 B are another principle schematic that unsticking occurs for two film layers being bonded to each other in flexible module；
Fig. 3 is a kind of structural schematic diagram of flexible module provided in an embodiment of the present invention；
Fig. 4 A- Fig. 4 C, which are two film layers being bonded to each other in flexible module provided in an embodiment of the present invention, can prevent unsticking
Principle schematic；
Fig. 5 A are a kind of structural schematic diagram of flexible display device provided in an embodiment of the present invention；
Fig. 5 B are a kind of structural schematic diagram of flexible display device in the prior art.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
In order to be more clearly understood that be bonded to each other in flexible module two film layers are easy in flexible module bending process
The principle of unsticking combines Figure 1A to Fig. 1 C and Fig. 2A to Fig. 2 B to two film layers being bonded to each other in flexible module first below
The principle for being easy unsticking illustrates.
As shown in Figure 1A, flexible module includes that two lower film layers 11 being bonded to each other and upper film layer 12, flexible module be not curved
When folding, 12 good fit of lower film layer 11 and upper film layer.
As shown in Figure 1B, when flexible module is bent downwards, upper film layer 12 is pressed by tensile stress F1, lower film layer 11
Stress F2；Conversely, when flexible module is folded upward at, 12 layers of upper film layer is by compression, and lower film layer 11 is by tensile stress.
Since during flexible module is bent, the Impact direction of the lower film layer 11 and upper film layer 12 that are bonded to each other is just
On the contrary, therefore, as shown in Figure 1 C, instantly the tensile stress suffered by film layer 11 and upper film layer 12 or compression be more than the two film layers it
Between frictional force when, the two film layers mutually slide due to by the shear action of tensile stress or compression, misplace, it is final mutually
Separation namely unsticking.
In addition, as shown in Figure 2 A, flexible module includes two lower film layers 11 being bonded to each other and upper film layer 12, works as flexible die
When group is bent downwards, upper film layer 12 is by tensile stress F1, and lower film layer 11 is by pressure stress F 2；Conversely, when flexible module by
When upper bending, 12 layers of upper film layer is by compression, and lower film layer 11 is by tensile stress.
Since during flexible module is bent, the Impact direction of the lower film layer 11 and upper film layer 12 that are bonded to each other is just
On the contrary, therefore, the tensile stress suffered by film layer 11 and upper film layer 12 or compression are more than the frictional force between the two film layers instantly
When F3, the two film layers mutually slide due to by the shear action of tensile stress or compression, misplace, and are finally separated from each other,
That is unsticking, it is specific as shown in Figure 2 B, occur gap 13 between lower film layer 11 and upper film layer 12.
The technical issues of two film layers being bonded to each other during in order to solve flexible module bending are easy unsticking, this hair
A kind of flexible module is provided in bright embodiment, including：The first film layer and the second film layer being bonded to each other, wherein described first
Film layer is towards being formed with the first coarse structure on at least partly surface of second film layer side；Second film layer is towards institute
It states and is formed with the second coarse structure on at least partly surface of the first film layer side；First coarse structure and described second is slightly
Rough structure is oppositely arranged and gapless is bonded.Wherein, " gapless fitting " refers to the first coarse film layer and second rough textured film
Layer directly fits, wherein any other tangible substance is not present；At this point, first coarse structure and second coarse structure
Pass through intermolecular force (also referred to as Van der Waals force) mutually absorption.
In a specific embodiment, the first coarse structure can be, directly to first film layer towards described
The surface of the side of two film layers is processed the coarse structure (rough surface) that (such as etching) obtains；And/or second coarse structure
Can be directly to be processed (such as etching) to the surface of second film layer towards the side of first film layer to obtain
Coarse structure (rough surface).
In another embodiment specific implementation mode, at least partly surface of first film layer towards second film layer side
On be formed with the first coarse film layer, first coarse structure is formed in the described first coarse film layer；And/or described second
Film layer is towards being formed with the second coarse film layer, the second coarse structure shape on at least partly surface of first film layer side
At in the described second coarse film layer.It specifically, can that first is formed in the first film layer be thick by the techniques such as spraying or depositing
Rough film layer forms the second coarse film layer in the second film layer；Wherein for spraying process, it is formed by the first coarse film layer
It is upper directly to form the first coarse structure, it is formed by the second coarse film layer and directly forms the second coarse structure；For depositing work
For skill, can the first coarse structure further be formed in the described first coarse film layer by etching technics, described second
With the second coarse structure is formed in coarse film layer.
In practical applications, the first coarse film layer and the second coarse film layer can pass through spraying or inorganic material shape
At.The inorganic material can be selected from one or more of silicon carbide, silicon nitride and silica.That is, it is thick to form first
Material used in rough film layer can be selected from one or more of silicon carbide, silica and silicon nitride；And/or form second slightly
Material used in rough film layer can be selected from one or more of silicon carbide, silica and silicon nitride.
A kind of flexible membrane modular structure provided in the embodiment of the present invention, after the first film layer and the fitting of the second film layer,
The second coarse structure on the first coarse structure and the second film layer in first film layer contacts with each other, this makes the first film layer and
Frictional force between two film layers increases, the contact interface of the first film layer and the second film layer when so as to inhibit flexible module to bend
Suffered shearing force, and then without optical cement, it will be able to effectively avoid the first film layer and the second film layer because
Unsticking, lamination caused by sliding mutually.Moreover, in view of between the first coarse structure and the second coarse structure without using light
Learn glue, the thickness of flexible module will not be made to increase, to will not make entire flexibility module during bending suffered by most
Big strain increases, this plays the role of anti-unsticking from another angle.
Maximum strain and the relational expression of the thickness of flexible module suffered by flexible module are：ε=h/2r, wherein ε is flexibility
The maximum strain of module, h are the thickness of flexible module, and r is the bending radius of each film layer in flexible module.Not according to the relational expression
Hardly possible finds that flexible module is thicker (h is bigger), and the maximum strain of flexible module is higher (ε is bigger).Therefore, in practical manufacturing process
In, the thickness of flexible module should not be too large.
In specific implementation, first coarse structure is arranged around the edge of first film layer, and described second is coarse
Structure ring is arranged around the edge of second film layer.When the first coarse structure and the second coarse structure are respectively formed at the first film layer
When with the marginal portion of the second film layer, it on the one hand can play the role of preventing the first film layer and the second film layer unsticking；Another party
Face, without having to worry about light diffusing reflection phenomenon, does not interfere with the light transmission of entire flexible module in view of the coarse structure for not forming flood
Property so that the display effect of flexible module is unaffected, while will not influence to make other in the central area of the first film layer
Display element.
In addition, when the first coarse structure and the second coarse structure are respectively formed at the edge part of the first film layer and the second film layer
In the apparent surface of timesharing, the first film layer and the second film layer, first coarse structure and second coarse structure are not formed
Part (i.e. the central area of the central area of the first film layer and the second film layer) vacuum suction fitting, certainly, the first film layer and
In the apparent surface of second film layer, part (i.e. the first film of first coarse structure and second coarse structure is not formed
The central area of the central area and the second film layer of layer) too small amount of optics glue laminating can also be led to, to further improve the
The anti-unsticking ability of one film layer and the second film layer.
It is appreciated that when the surface roughness of the first coarse structure and the second coarse structure is too low, after improving fitting
The effect of frictional force between first film layer and the second film layer is little；And the surface of the first coarse structure and the second coarse structure is thick
When rugosity is excessively high, the thickness of entire flexible module can be increased so that entire flexibility module maximum suffered during bending
Strain increases, the final effect for influencing to prevent the first film layer and the second film layer unsticking.It is therefore advantageous to, the first coarse structure
Surface roughness can be between 5~8 μm；And/or second coarse structure surface roughness between 5~8 μm.
Also, the surface roughness of the first coarse structure and the surface roughness of the second coarse structure can be identical, with drop
The process complexity of low processing the first coarse structure and the second coarse structure.
It is also understood that working as shape at least part surface in first film layer towards second film layer side
At the first coarse film layer, it is thick that second is formed at least part surface of second film layer towards first film layer side
When rough film layer, if the thickness of the first coarse film layer and the second coarse film layer is too low, it possibly can not ensure the first coarse film layer and the
The surface roughness of two coarse film layers reaches expected numerical value, to influence improve fitting after the first film layer and the second film layer it
Between frictional force effect；If the thickness of the first coarse film layer and the second coarse film layer is excessively high, will increase as the prior art
Add the thickness of entire flexible module so that the maximum strain suffered during bending of entire flexibility module increases, final shadow
Ringing prevents the effect of the first film layer and the second film layer unsticking.Preferably, the thickness of the first coarse film layer can be between 5~8 μm；
And/or second the thickness of coarse film layer can be between 5~8 μm.
Similarly, the thickness of the first coarse film layer and the thickness of the second coarse film layer can be identical, thick to reduce processing first
The process complexity of rough film layer and the second coarse film layer.
Below in conjunction with the accompanying drawings, the technical solution that each embodiment that the present invention will be described in detail provides.
Fig. 3 is referred to, a kind of flexible module provided in an embodiment of the present invention includes mainly：The first film layer being bonded to each other
21 and second film layer 22, it is even more important that the first film layer 21 is towards on at least partly surface of 22 side of the second film layer
Form the first coarse structure 23, the second film layer 22 is coarse towards being formed with second on at least partly surface of 21 side of the first film layer
Structure 24, also, the first coarse structure 23 and the second coarse structure 24 are oppositely arranged and gapless is bonded.Wherein, " gapless
Fitting " refers to that the first coarse film layer and the second coarse film layer directly fit, wherein any other tangible substance is not present；This
When the first coarse structure 23 and the second coarse structure 24 mutually adsorbed by intermolecular force.
Specifically, as shown in figure 3, the first coarse structure 23 can be arranged only around the edge of the first film layer 21, correspondingly,
Second coarse structure 24 can also be arranged only around the edge of the second film layer 22.When the first coarse structure 23 and the second coarse structure
24 when being respectively formed at the edge of the first film layer 21 and the second film layer 22, and on the one hand can play prevents the first film layer 21 and second
The effect of 22 unsticking of film layer；It on the other hand, will not without having to worry about light diffusing reflection phenomenon in view of the coarse structure for not forming flood
Influence the translucency of entire flexible module so that the display effect of flexible module is unaffected, while will not influence first
The center of film layer makes other display elements.
In addition, when the first coarse structure 23 and the second coarse structure 24 are respectively formed at the first film layer 21 and the second film layer 22
Edge when, in the apparent surface of the first film layer 21 and the second film layer 22, do not form the first coarse structure 23 and the second coarse knot
Part (i.e. the central area of the central area of the first film layer 21 and the second film layer 22) vacuum suction of structure 24 is bonded.Certainly,
In the apparent surface of one film layer 21 and the second film layer 22, the part of the first coarse structure 23 and the second coarse structure 24 is not formed
(i.e. the central area of the central area of the first film layer 21 and the second film layer 22) can also lead to too small amount of optics glue laminating, with into
Improve to one step the anti-unsticking ability of the first film layer 21 and the second film layer 22.
With reference to figure 3 it is found that the first coarse structure 23 can be, directly to the first film layer 21 towards the side of the second film layer 22
Surface be processed the coarse structure (rough surface) that (such as etching) obtains；Second coarse structure 24 can be, directly to
The surface of two film layers 22 towards the side of the first film layer 21 is processed the coarse structure (rough surface) that (such as etching) obtains.
Certainly, in figure 3, first film layer 21 is towards being formed on at least partly surface of second film layer side
First coarse film layer, first coarse structure 23 are formed in the described first coarse film layer；And/or second film layer 22
The second coarse film layer, the formation of the second coarse structure 24 are formed on towards at least partly surface of first film layer side
In the described second coarse film layer.It specifically, can that first is formed in the first film layer 21 be thick by the techniques such as spraying or depositing
Rough film layer forms the second coarse film layer in the second film layer 22；Wherein for spraying process, it is formed by the first rough textured film
The first coarse structure 23 is directly formed on layer, is formed by the second coarse film layer and is directly formed the second coarse structure 24；For
For depositing operation, can the first coarse structure 23 further be formed in the described first coarse film layer by etching technics,
Described second and coarse film layer on form the second coarse structure 24.
It is appreciated that when the surface roughness of the first coarse structure 23 and the second coarse structure 24 is too low, it is bonded to improving
The effect of the frictional force between the first film layer 21 and the second film layer 22 afterwards is little；And the first coarse structure 23 and the second coarse knot
When the surface roughness of structure 24 is excessively high, the thickness of entire flexible module can be increased so that process of the entire flexibility module in bending
In suffered maximum strain increase, the final effect for influencing to prevent the first film layer and the second film layer unsticking.It is therefore advantageous to, the
The surface roughness of one coarse structure 23 can be between 5~8 μm；And/or second coarse structure 24 surface roughness 5
Between~8 μm.
Also, the surface roughness of the first coarse structure 23 and the surface roughness of the second coarse structure 24 can be identical,
To reduce the process complexity of processing the first coarse structure 23 and the second coarse structure 24.
It is also understood that when form at least part surface of first film layer 21 towards 22 side of the second film layer
One coarse film layer, in the second coarse film layer at least part surface of second film layer 22 towards 21 side of the first film layer,
If the thickness of the first coarse film layer and the second coarse film layer is too low, possibly it can not ensure the first coarse structure 23 and the second coarse knot
The surface roughness of structure 24 reaches expected numerical value, to influence between the first film layer 21 and the second film layer 22 after raising is bonded
Frictional force effect；If the thickness of the first coarse film layer and the second coarse film layer is excessively high, it will increase as the prior art
Add the thickness of entire flexible module so that the maximum strain suffered during bending of entire flexibility module increases, final shadow
Ringing prevents the effect of 22 unsticking of the first film layer 21 and the second film layer.Preferably, the thickness of the first coarse film layer can be at 5~8 μm
Between；And/or second the thickness of coarse film layer can be between 5~8 μm.
Similarly, the thickness of the first coarse film layer and the thickness of the second coarse film layer can be identical, thick to reduce processing first
The process complexity of rough film layer and the second coarse film layer.
In practical applications, can by spray, deposit etc. techniques in the first film layer 21 and the second film layer 22 respectively plus
The first coarse film layer of work and the second coarse film layer；Specifically, the first coarse film layer and the second coarse film layer can pass through spraying
Or inorganic material is formed.The inorganic material can be selected from one or more of silicon carbide, silicon nitride and silica.
That is, the material formed used in the first coarse film layer can be selected from one or more of silicon carbide, silica and silicon nitride；
And/or the material formed used in the second coarse film layer can be selected from one or more of silicon carbide, silica and silicon nitride.
With reference to Fig. 4 A to Fig. 4 C, the first film being bonded to each other can be avoided to a kind of flexible module provided by the invention
Layer and the second film layer unsticking, the principle of lamination caused by sliding mutually illustrate.
It should be noted that the first coarse structure 23 and the second film layer in the first film layer 21 is shown in Fig. 4 A to Fig. 4 C
The microstructure schematic diagram after the fitting of the second coarse structure 24 on 22.
As shown in Figure 4 A, when including the flexible module of the first film layer 21 and the second film layer 22 that is bonded to each other is not bent,
The first coarse structure 23 formed in one film layer 21 and the second coarse structure 24 formed in the second film layer 22 (can pass through etching
Formed) it is mutually chimeric, increase the frictional force between the first film layer 21 and the second film layer 22.
As shown in Figure 4 B, when flexible module is bent downwards, the second film layer 22 by tensile stress F1, the first film layer 21 by
To pressure stress F 2.
As shown in Figure 4 C, during flexible module is bent, due to the first coarse structure 23 and the second coarse structure 24
It is mutual chimeric so that the frictional force between the first film layer 21 and the second film layer 22 is substantially improved, so that the first film layer 21
Increase with the resistance to be overcome when the mutually sliding of the second film layer 22 or dislocation, that is to say, that the first film layer 21 and the second film layer
Frictional force between 22 is more than the pressure stress F 2 (or tensile stress F1 suffered by the second film layer 22) suffered by the first film layer 21, therefore,
It may finally prevent the first film layer 21 and the second film layer 22 from mutually sliding, misplacing due to the effect by shearing force, it may finally
The first film layer 21 and the second film layer 22 is avoided to be separated from each other, unsticking.
Further more, the embodiment of the present invention additionally provides a kind of flexible display device, which includes that the present invention is real
A kind of flexible module of example offer is provided.
Specific as shown in Figure 5A, the flexible module in above-mentioned flexible display device may include：Display panel 31 and fitting
Touch panel 33 (TouchPad, TP) on the display panel 31, wherein display panel 31 is specifically as follows OLED and shows
Panel.
In a kind of more specifically embodiment, be located at 31 top layer of OLED display panel plays resistance to OLED display panel
Every or the barrier layer 311 of protective effect can be above-mentioned first film layer；Substrate 331 positioned at 33 bottom of touch panel can be upper
The second film layer is stated, and barrier layer 311 and substrate 331 are bonded to each other by way of intermolecular force or Electrostatic Absorption.
Certainly, other film layers being bonded to each other in flexible module can also be respectively to should be used as the first film layer and the second film
Layer, the present invention do not limit this.
With continued reference to Fig. 5 A it is found that in addition to the display panel 31 and touch panel 33 that are bonded to each other, above-mentioned Flexible Displays are set
It is standby to may include：Polaroid glue 34, polaroid (Polarizer, POL) 35, the light being successively fitted on the touch panel 33
Learn 36 and cover board 37 etc. glue (Optically Clear Adhesive, OCA).
Fig. 5 B are a kind of structural schematic diagram of flexible display device in the prior art, which includes under
Display panel 31, first layer optical cement 32, touch panel 33, polaroid glue 34, polaroid 35, the second layer being stacked on and
Optical cement 36 and cover board 37.
Comparison diagram 5A and Fig. 5 B are it is not difficult to find that due to flexible display device provided in an embodiment of the present invention (as shown in Figure 5A)
In include flexible module provided in an embodiment of the present invention, on the one hand, the barrier layer 311 and touch surface of the top layer of display panel 31
The edge for the one side that the substrate 331 of plate 33 is bonded to each other is machined with coarse film layer respectively, this makes barrier layer 311 and substrate 331
Between frictional force increase, the contact interface of barrier layer 311 and substrate 331 institute when so as to inhibit flexible display device to bend
The shearing force received, and then avoid barrier layer 311 and substrate 331 unsticking caused by sliding mutually, lamination；On the other hand,
Barrier layer 311 and substrate 331 are directly by intermolecular force (being formed between the part of coarse structure) and Electrostatic Absorption is (not
Formed coarse structure part between) mode be bonded, first layer optical cement 32 can be eliminated, therefore, Flexible Displays will not be made
The thickness of equipment increases, and the maximum strain to which flexible display device will not be made suffered during bending increases, from another
One angle plays the role of anti-unsticking.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that process, method, commodity or equipment including a series of elements include not only those elements, but also includes
Other elements that are not explicitly listed, or further include for this process, method, commodity or the intrinsic element of equipment.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, there is also other identical elements in commodity or equipment.
Example the above is only the implementation of the present invention is not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.It is all within spirit and principles of the present invention made by any modification, equivalent
Replace, improve etc., it should be included within scope of the presently claimed invention.
Claims (10)
1. a kind of flexibility module, including：The first film layer (21) and the second film layer (22) being bonded to each other, which is characterized in that
First film layer (21) is towards being formed with the first coarse knot on at least partly surface of the second film layer (22) side
Structure (23)；
Second film layer (22) is towards being formed with the second coarse knot on at least partly surface of the first film layer (21) side
Structure (24)；
Wherein, first coarse structure (23) and second coarse structure (24) are oppositely arranged and gapless is bonded.
2. flexibility module according to claim 1, which is characterized in that
First coarse structure (23) is arranged around the edge of first film layer (21), the second coarse structure (24) ring
It is arranged around the edge of second film layer (22).
3. flexibility module according to claim 2, which is characterized in that
In the apparent surface of first film layer (21) and second film layer (22), first coarse structure (23) is not formed
Fitting is adsorbed with the partial vacuum of second coarse structure (24).
4. flexibility module according to claim 1, which is characterized in that the surface roughness of first coarse structure (23)
Between 5~8 μm；And/or the surface roughness of second coarse structure (24) is between 5~8 μm.
5. flexibility module according to claim 4, which is characterized in that the surface roughness of first coarse structure (23)
It is identical with the surface roughness of the second coarse structure (24).
6. flexibility module according to claim 1, which is characterized in that
First film layer (21) is towards being formed with the first rough textured film on at least partly surface of the second film layer (22) side
Layer, first coarse structure (23) are formed in the described first coarse film layer；And/or second film layer (22) is towards institute
It states and is formed with the second coarse film layer on at least partly surface of the first film layer (21) side, second coarse structure (24) is formed
In the described second coarse film layer.
7. flexibility module according to claim 6, which is characterized in that the thickness and described second of the first coarse film layer
The thickness of coarse film layer is identical.
8. flexibility module according to claim 6, which is characterized in that form the first coarse film layer and described second slightly
Material used in rough film layer is separately selected from one or more of silicon carbide, silica and silicon nitride.
9. a kind of flexible display device, which is characterized in that the flexible display device includes：According to any in claim 1-8
Flexible module described in.
10. flexible display device according to claim 9, which is characterized in that it is described flexibility module include：OLED display surfaces
Plate (31) and the touch panel (33) being fitted in the OLED display panel (31) are located at the OLED display panel (31) and push up
The barrier layer (311) in portion is the first film layer, and the substrate (331) for being located at the touch panel (33) bottom is the second film layer.
Priority Applications (1)
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