CN110058444A - A kind of display module and display device - Google Patents
A kind of display module and display device Download PDFInfo
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- CN110058444A CN110058444A CN201910380075.XA CN201910380075A CN110058444A CN 110058444 A CN110058444 A CN 110058444A CN 201910380075 A CN201910380075 A CN 201910380075A CN 110058444 A CN110058444 A CN 110058444A
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- Prior art keywords
- bent area
- display module
- support membrane
- bending
- elasticity modulus
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133305—Flexible substrates, e.g. plastics, organic film
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
Abstract
It includes flexible display panels and support membrane that the present invention, which describes a kind of display module and display device, display module, and support membrane is located at the side of flexible display panels；Display module further includes the first bent area, and the first bent area includes the first bending axis extended in a first direction；First bent area includes the first sub- bent area, and in a second direction, the elasticity modulus of the support membrane in the first sub- bent area is gradually reduced；Second direction for display module institute planar, the direction of the first bending axis to the first bent area boundary.It is handled by the support membrane to bent area, obtain the region of an elasticity modulus gradual change, wherein toward both sides centered on the first bending axis, elasticity modulus is sequentially reduced, or elasticity modulus is first sequentially reduced and is sequentially increased again, to which bent area obtains the shape of an approximate water droplet under bending state, increase the crooked process radius of bent area in a folded configuration, avoids occurring overflexing in the process of bending flexible display panels is caused to fail.
Description
Technical field
The present invention relates to display fields, more particularly to a kind of display module and display device.
Background technique
Traditional flat panel display device technology development has reached its maturity, and flexible display panels it is frivolous, bent by its,
Impact-resistant characteristic will become the mainstream of display field.Wherein (Organic Light Emitting Display, has OLED
Organic electro luminescent is shown) because having wide fast response time, visual angle, the high and low power consumption of brightness and selfluminous element, there is bend resistance
The excellent properties such as characteristic become one of the hot spot of field of flexible display research in recent years.
As depicted in figs. 1 and 2, Fig. 1 is that a kind of display module structural schematic diagram, Fig. 2 are in the prior art in the prior art
Display module folded state flowering structure schematic diagram.In existing Flexible Displays mould group, display panel 1 ' is due to any in order to prevent
Curling or bending cause to fail, it will usually supporting mechanism 2 ' be arranged in 1 ' lower surface of display panel.Due to display panel 1 ' and
The limitation of the bending ability of supporting mechanism 2 ' itself is easy to cause folded state when display module is bent along folding shaft 3 '
The crooked process radius at lower 3 ' place of folding shaft is too small, causes to damage to display panel 1 ', to aobvious non ageing situation occur.
Summary of the invention
In view of this, the present invention provides a kind of display module and display device, it is curved to solve flexible die group in the prior art
By half diameter it is too small and cause display fail the problem of.
It includes flexible display panels and support membrane that the present invention, which describes a kind of display module, and support membrane is located at Flexible Displays face
The side of plate；Display module further includes the first bent area, and the first bent area includes the first bending axis extended in a first direction；The
One bent area includes the first sub- bent area, and in a second direction, the elasticity modulus of the support membrane in the first sub- bent area is gradually reduced；
Second direction for display module institute planar, the direction of the first bending axis to the first bent area boundary.
Optionally, display module further includes the second bent area, and in a second direction, the second bent area is located at the first sub- bent area
Side far from the first bending axis；In a second direction, the elasticity modulus of the support membrane in the second bent area is gradually increased.
Optionally, in a second direction, the width of the first bent area is greater than or equal to the width of the second bent area.
Optionally, display module includes folded state, has maximum bending half at the first bending axis in a folded configuration
Diameter.
Optionally, the range of the elasticity modulus gradual change of support membrane is 1~1011Pa。
Optionally, the gradual change amount 10 in the elasticity modulus of the first bent area support membrane in unit length8~109Pa/mm。
Optionally, support membrane is located at flexible display panels away from the side for going out light.
Optionally, the support membrane in the first son bending region includes the different strip glue material of multiple elasticity modulus, strip glue material
It extends in a first direction.
Optionally, the material of support membrane includes rubber.
Optionally, the support membrane of the first bent area includes the rubber obtained through peroxide, vulcanization or fluorination treatment.
Optionally, the support membrane of the first bent area includes the rubber handled by ion implanting.
The present invention also provides a kind of display devices, include the above display panel.
Compared with prior art, the present invention at least has the advantages that one of prominent as follows:
The present invention is handled by the support membrane to bent area, obtains the region of an elasticity modulus gradual change, wherein with
Toward both sides centered on first bending axis, the elasticity modulus of support membrane is sequentially reduced or elasticity modulus is first sequentially reduced again successively
Increase, so that the bent area of display module obtains the shape of an approximate water droplet under bending state, increases bent area and folding
Crooked process radius under state, avoids occurring overflexing in the process of bending flexible display panels is caused to fail.
Detailed description of the invention
Fig. 1 is a kind of display module structural schematic diagram in the prior art；
Fig. 2 is display module folded state flowering structure schematic diagram in the prior art；
Fig. 3 is the folding schematic diagram of ideally display module；
Fig. 4 is a kind of structural schematic diagram of display module provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of the display module of Fig. 4 in the z-direction；
Fig. 6 is the structural schematic diagram of another display module provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another display module provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another display module provided in an embodiment of the present invention；
Fig. 9 is the structural schematic diagram under the display module folded state that Fig. 4 embodiment provides；
Figure 10 is the structural schematic diagram under the display module folded state that Fig. 8 embodiment provides；
The structural schematic diagram of Figure 11 another display module provided in an embodiment of the present invention；
Figure 12 is a kind of schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with attached drawing and implementation
The present invention will be further described for example.
Example embodiment can be implemented in a variety of forms, and be not understood as limited to embodiment set forth herein:
On the contrary, thesing embodiments are provided so that the present invention more comprehensively and completely, and the design of example embodiment is comprehensively conveyed
To those skilled in the art.Identical appended drawing reference indicates same or similar structure in figure, thus will omit to them
Repeated description.The word of expression position and direction described in the wooden invention is the explanation carried out by taking attached drawing as an example, but according to
It needs to make a change, done change is all contained in the scope of the present invention.Attached drawing of the invention is only used for signal phase
To positional relationship, the thickness at certain positions uses thickness and small representative of the plotting mode lavished praise on oneself in order to understand, in attached drawing
The proportionate relationship of practical thickness.
It should be noted that elaborating detail in the following description to fully understand the present invention.But this hair
Bright to be different from other way described herein with a variety of and be implemented, those skilled in the art can be without prejudice in the present invention
Similar popularization is done in the case where culvert.Therefore the present invention is not limited by following public specific embodiment.In addition, below
In description, identical appended drawing reference indicates same or similar structure in figure, thus will omit repetition thereof.
Currently, in order to realize flexible folding technology, it is common practice that the structure of entire Flexible Displays mould group is thinned as far as possible,
Or softening processing is carried out in the foldable area of display module, to realize the flexible die group of radius as small as possible.Referring to FIG. 3,
Fig. 3 is the folding schematic diagram of ideally display module, and actual display module structure is special since many film layer structures stack
It is not that the inorganic layer of thin film transistor (TFT) (thin film transistor, TFT) array substrate and organic light emission (OLED) are shown
The presence for showing inorganic layer in thin-film encapsulation layer cannot achieve the flexible die group of the bending of minor radius.In order to make fold domain
The thinning as far as possible of mould group, the support membrane 2 ' of display module are provided only on non-bent area.Ideally, flexible base board 1 ' is completely soft
Change, ideal water droplet round shape state is presented in folded display module bending region.But actual flexible base board 1 ' can not
Complete softening, when can only obtain the form of nearly V-type, and finally folding, crooked process radius of the display module in bent area is too small, is easy
It is impaired to lead to bend display module in region, to display failure occur.
Based on this, the present invention provides a kind of display module, solve flexible die group crooked process radius in the prior art it is too small and
The problem of caused display is failed.
Fig. 4 and Fig. 5 are please referred to, Fig. 4 is a kind of structural schematic diagram of display module provided in an embodiment of the present invention, and Fig. 5 is
The structural schematic diagram of the display module of Fig. 4 in the z-direction.It includes flexible display panels that the present invention, which describes a kind of display module 10,
100 and support membrane 200, support membrane 200 be located at the side of flexible display panels 100；Display module 10 further includes the first bent area
BA1, the first bent area BA1 include the first bending axis 300 extended along first direction y；First bent area BA1 includes that the first son is curved
The elasticity modulus of folding area, x in a second direction, the support membrane 201/202 in the first sub- bent area is gradually reduced；Second direction x is
Planar, first bends the direction on the 300 to the first bent area of axis boundary BA1 to 10 institute of display module.
It is understood that flexible display panels 100 can be liquid crystal display panel or OLED display panel, the application couple
The emission type of display panel is not specifically limited.Support membrane 200 positioned at 100 side of flexible display panels is in the first bent area
Elasticity modulus gradual change in BA1, the i.e. intensity of support membrane 200 are gradually reduced in the first sub- bent area along first direction x, thus
Bent area in folding process for display module 10 provides the support force being gradually reduced, curved to first in one side bending process
The protection that folding area BA1 is provided avoids the overflexing of flexible display panels 100, does not on the other hand influence display module 10
Folding；Since the elasticity modulus of modular ratio adjacent position at the first bending axis 300 is big, support force is maximum, therefore limits
Crooked process radius at bending axis will not be too small.It should be noted that in existing flexible display panels, when crooked process radius is less than
When limit crooked process radius 2.5mm, flexible display panels will appear bending damage, cause a degree of display defect even aobvious
Show failure.In other flexible display panels, limit crooked process radius is also likely to be 5mm, and different display panels has not
Same limit crooked process radius.The crooked process radius that the application mentions is too small, refers to that the crooked process radius of flexible display panels is less than pole
Crooked process radius is limited, i.e., can generate the crooked process radius of display defect.
It should also be noted that, schematically the first bent area BA1 is the centre of display module 10 in the figure of the present embodiment
Position, and the first bending axis 300 is located at the middle position of the first bent area BA1, but in other embodiments, the first bending
Area BA1 can be located at any position of display module 10, and the position of the first bending axis 300 being set according to the specific of display module 10
Depending on setting.
Optionally, in the present embodiment, the range of the elasticity modulus gradual change of support membrane is 1~1011Pa.It is understood that
For folding display device, the crooked process radius of display module is bigger, and display panel is less susceptible to damage, but current consumer
Pursuit to electronic product be it is ultra-thin, that is, need the crooked process radius of foldable display device the smaller the better, therefore folding device
Middle display module crooked process radius is less than 10mm.In the present embodiment, the range of the elasticity modulus gradual change of support membrane is 1~1011Pa makes
The bending region of display module 10 have biggish deformation quantity, on the one hand, make display module 10 have lesser crooked process radius with
Meet the needs of folding device crooked process radius, on the other hand makes display module 10 that there is preferable bent performance.
Optionally, the gradual change amount 10 in the elasticity modulus of the first bent area BA1 support membrane 200 in unit length8~
109Pa/mm.The support membrane 200 of elasticity modulus gradual change provides the support force of gradual change for bending region, is on the one hand display module
10 the first bent area BA1 has preferable bending performance, is conducive to the bending of display module 10, on the other hand, avoids curved
The crooked process radius of the local support film elasticity modulus mutation bring local compliance display panel 100 of first bent area BA1 when folding
It is too small, it avoids the excessive bring flexible display panels 100 of stress at 200 elasticity modulus mutation of support membrane and damages.
In an alternate embodiment of the invention, referring to FIG. 6, Fig. 6 is the knot of another display module provided in an embodiment of the present invention
The non-bending region of structure schematic diagram, display module 10 also may include support membrane 205/206.It is understood that non-bent area
Support membrane 205/206 elasticity modulus be greater than or equal to the first bent area BA1 maximum elastance.The branch in non-bending region
Support film 205/206 can provide protection for flexible display panels 100, reduce the extraneous scraping that flexible display panels 100 are subject to
And impact；And the support membrane 205/206 of non-bent area setting makes flexible display panels 100 that any curling or curved will not occur
Folding further reduces failure risk caused by bending, to improve the reliability of display module 10.In addition, non-bent area is set
Setting support membrane 205/206 makes non-bent area have preferable rigidity, and display module 10 is made to have certain intensity, makes to show mould
Group 10 have antidetonation, it is resistance to fall, resistance to pressing, the performances such as resistance to touch-control.
Optionally, Fig. 7 and Fig. 8 are please referred to, Fig. 7 is the structural representation of another display module provided in an embodiment of the present invention
Figure, Fig. 8 is the structural schematic diagram of another display module provided in an embodiment of the present invention, and display module 10 further includes the second bending
Area BA21/BA22, x, the second bent area BA21/BA22 are located at one of the first sub- bent area far from the first bending axis in a second direction
Side；The elasticity modulus of support membrane 203/204 in x in a second direction, the second bent area BA21/BA22 is gradually increased.It needs
Bright, second direction x is the direction of the first bending axis to the first bent area boundary in the present invention, in the embodiment of the present invention, the
One bending axle position is in the middle position of the first bent area, therefore, flexible display panels institute planar, the first bending axis is left
Side, second direction x1 are to extend from right to left, and on the right side of the first bending axis, second direction x2 from left to right extends.Therefore, this reality
It applies in example, the second bent area BA21/BA22 is located at the first bent area two sides BA1, the support membrane in the second bent area BA21
204 are sequentially increased along the direction x1 elasticity modulus, and the support membrane 203 in the second bent area BA22 successively increases along the direction x2 elasticity modulus
Greatly.
It is understood that under normal conditions, in the display module under folded state, minimum bend radius is at folding shaft
Or the intersection of bent area and non-bent area, in minimum bend radius position, the folding s tress of flexible display panels is big, is easy to make
It is damaged at display panel, further brings display defect.Toward flexible display panels centered on the first bending axis in the present embodiment
100 both sides, the elasticity modulus of support membrane 200 is first sequentially reduced to be sequentially increased again so that first bending axis at and bent area with
The support membrane elasticity modulus of the intersection of non-bent area is greater than the elasticity modulus of adjacent bent position, to increase flexible aobvious
Show that panel 100 at the first bending axis and the crooked process radius of the intersection of bent area and non-bent area, reduces under bending state
The risk that flexible display panels are damaged improves the reliability of display module bending.Optionally, display module 10 is non-curved
Support membrane 205/206 also can be set in folding area, and it is preferable rigid that non-bent area setting support membrane 205/206 has non-bent area
Property, make display module 10 that there is certain intensity, make display module 10 have antidetonation, it is resistance to fall, resistance to pressing, the performances such as resistance to touch-control.
Optionally, Fig. 9 and Figure 10 are please referred to, Fig. 9 is that the structure under the display module folded state that Fig. 4 embodiment provides is shown
It is intended to, Figure 10 is the structural schematic diagram under the display module folded state that Fig. 8 embodiment provides, and display module 10 includes rugosity
State has maximum crooked process radius R at the first bending axis 300 in a folded configuration.Incorporated by reference to reference Fig. 4 and Fig. 9, Fig. 8 and figure
The side of 10,100 first bent area BA1 of flexible display panels are provided with along the first bending axis to the first bent area boundary BA1 bullet
Property the support membrane 201/202 that is gradually reduced of modulus, the first bent area inner support film 201/202 is that flexible display panels 100 provide
The support force of gradual change, when bending, due to the elasticity modulus of the support membrane modular ratio adjacent two sides at the first bending axis 300
Greatly, the support force therefore at the first bending axis 300 is also maximum, too small so as to avoid the crooked process radius at the first bending axis 300
Cause display defect.In an alternate embodiment of the invention, the non-bent area and the first bent area of the second bent area connection display module 10
200 elasticity modulus of support membrane of BA1, bent area (the first bent area and the second bent area) are first gradually reduced, rear to be gradually increased again,
On the one hand the bending for being conducive to display module 10, on the other hand defines in bending process to be not in support membrane local elasticity mould
Amount is mutated and brings the mutation of stress, reduces the risk that flexible display panels 100 are impaired in bending process.Further, it asks
With continued reference to Fig. 9 and Figure 10, the display module under bending state is similar to elliptical close to drop shape ideally
Shape.Further, x extends elliptical long axis in a second direction, and short axle extends in the z-direction, and flexible display panels 100
Minimum bend radius is located at the top of elliptical long axis.At this point, at the first bending axis there is maximum crooked process radius i.e. first to bend
Viewing area near axis is more flat compared with the other positions of bent area, alleviates the stress near the first bending axis and concentrates, avoids
Crooked process radius is too small at first bending axis.Herein it should be noted that least radius can also be under 10 bending state of display module
Positioned at the other positions in addition to the first bending axis, but the minimum bend radius of entire display module is all larger than display module
Limit crooked process radius.
Incorporated by reference to reference Fig. 7 and Figure 10, optionally, x, the width of the first bent area BA1 are greater than or equal in a second direction
The width of second bent area BA2.On second direction x, the width of the first bent area BA1 is D, the width of the second bent area BA2
For d1+d2, it is to be understood that D >=d1+d2.Due to gradually subtracting in the elasticity modulus of the first sub- bent area BA1 support membrane 201
It is small, and the elasticity modulus of the second bent area support membrane 203 is gradually increased, flexible display panels form approximate ellipse under bending state
Round shape.Further, the width that the first bent area BA1 is arranged is equal to the width of the second bent area, so that under bending state,
X extends elliptical long axis in a second direction；The width that the first bent area BA1 is arranged is greater than the width of the second bent area, then oval
Long axis direction while extend in the x-direction elliptical long axis position to the direction (direction z in figure) far from the first bending axis
It is mobile；So that the bending shape of display module further alleviates answering at the first bending axis closer to ideal water droplet state
Power concentrate, so as to avoid crooked process radius it is too small caused by display defect.
It should be noted that only with dotted line representing the first bending axis 300 in Fig. 4 and Fig. 6~Figure 10
Position, and the extending direction of dotted line is not the practical extending direction of the first bending axis.
Optionally, please continue to refer to Fig. 4~8, support membrane 200 is located at flexible display panels 100 away from the side for going out light.It can
With understanding, even translucent material, light still suffers from a part of light losing when passing through transparent material layer.Cause
Support membrane 200 is set to flexible display panels away from the side for going out light by this embodiment of the present application.On the one hand, 200 energy of support membrane
Support is provided for 100 plate of Flexible Displays face, so that the minimum bend radius of flexible display panels 100 is bent greater than the limit when bending
Radius improves the bending reliability of display module；On the other hand, support membrane will not block the light out of flexible display panels 100, no
Influence the normal display of flexible display panels 100.
It optionally, is the structural schematic diagram for the another display module that inventive embodiments provide please continue to refer to Figure 11, Figure 11,
The support membrane 200 of first bent area BA1 includes the different strip glue material 2011/2012/2013/2021/ of multiple elasticity modulus
2022/2023, and strip glue material 2011/2012/2013/2021/2022/2023 extends along first direction y.It needs to illustrate
It is, it is merely exemplary in Figure 11 to depict each 3 strip glue materials in 300 two sides of the first bending axis, not to the particular number of glue material
It limits.It is understood that from the direction on first bending the 300 to the first bent area of axis boundary BA1, support membrane 2011/
2012/2013 elasticity modulus is sequentially reduced, and the elasticity modulus of support membrane 2021/2022/2023 is sequentially reduced；It specifically can be with
First bent area BA1 is coated in using the different glue material of elasticity modulus, glue material coating is in a strip shape, and extending direction and the first bending
The extending direction of axis 300 is identical.On the one hand, the bending of display module 10 is not influenced, on the other hand, provides one gradually for bent area
The support force of change makes crooked process radius be no more than the limit radius of display module bending while realizing display module bending, thus
It avoids overflexing bring display module and is damaged or shows failure.It should be noted that glue material is also possible to identical material
Obtain the strip glue material of dual extension-compression modulus after processing, the application to the specific material of glue material without limitation.
Optionally, please continue to refer to Fig. 4~Figure 10, the material of support membrane 200 includes rubber.Rubber has reversible deformation
The strand of high resiliency, rubber can be crosslinked, and the rubber after crosslinking has good physical and mechanical property and chemical stability.Cause
This support membrane 200 makes the intensity of support membrane 200 adjustable using rubber material, in the same of the protection intensity for meeting display module
When, the intensity of bent area can be regulated and controled according to the bending demand of display module 10.
Optionally, please continue to refer to Fig. 4~Figure 10, the support membrane 200 of the first bent area BA1 includes through peroxide, sulphur
The rubber that change or fluorination treatment obtain.
It is understood that the first bent area BA1 includes by carrying out the macromolecule network that vulcanizing treatment obtains to rubber
Structure.From the position at first bending the 300 to the first bent area of axis edge BA1, the sulfide concentration for handling rubber is gradually reduced, makes
The elasticity modulus for obtaining support membrane 200 is gradually reduced.The basis material of support membrane 200 uses rubber in the embodiment of the present invention, wherein
Vulcanization crosslinking processing to rubber is carried out, makes non-bending region with stronger physical strength and ageing-resistant performance, and bent area
The reversible deformation for keeping rubber can also keep the property for preferably restoring original property even if repeatedly deformation occurs in bent area
Energy.In the embodiment of the present invention, can be first to the rubber of support membrane 200 carry out vulcanizing treatment support membrane 200 is attached to again it is soft
Property display panel 100 away from go out light side, be also possible to that support membrane 200 is first attached to deviating from for flexible display panels 100
Light side carries out vulcanizing treatment to the rubber of support membrane again out.
Optionally, the support membrane 200 of the first bent area BA1 can be obtained by carrying out fluorination treatment to rubber, to make
Rubber contains carbon-fluorine bond and has stronger intensity.For example, can use fluorine gas or xenon difluoride etc. and rubber material surface
The generation chemical reaction that is in contact carries out rubber surface fluorinated modified.Xenon difluoride surface fluorination is to make difluoro by controlling temperature
Changing xenon distillation is gaseous state, and fluorination reaction occurs with rubber surface.As the reaction time extends, rubber surface hydrogen atom is by fluorine original
Son, which replaces, becomes carbon-fluorine bond by carbon-hydrogen bond, carbon-hydrogen bond energy about 415KJ/mol, carbon-fluorine bond bond energy about 515KJ/mol,
And the rubber before improving is linear molecule, and being fluorinated the rubber after improving becomes the molecule of cross-linked structure, makes the intensity of rubber
It greatly enhances.It is understood that handling the fluorination of rubber from the position at first bending the 300 to the first bent area of axis edge BA1
Object concentration is gradually reduced, so that the elasticity modulus of support membrane 200 is gradually reduced.In the embodiment of the present invention, it can be first to support
The rubber of film 200 carries out the side away from light out that support membrane 200 is attached to flexible display panels 100 by fluorination treatment again,
It can be and the side away from light out that support membrane 200 attaches to flexible display panels 100 is first subjected to fluorination treatment to rubber again.
Optionally, the support membrane 200 of the first bent area BA1 includes the macromolecule network knot obtained through peroxide treatment
Structure.Homolysis produces when the strand of rubber mainly includes small saturated carbon-carbon key linear molecule, peroxide and rubber heat together
Then raw free radical by Radical Addition or is captured α-methylene active hydrogen on rubber molecular chain and be crosslinked instead
It answers, to constantly form carbon-carbon cross-bond during the reaction, linear rubber molecule is made to become polymer mesh structure, rubber
Intensity increase.It is understood that handling the mistake of rubber from the position on first bending the 300 to the first bent area of axis boundary BA1
Oxide concentration is gradually reduced, so that the elasticity modulus of support membrane 200 is gradually reduced.To increase rubbery intensity in bent area
The superior deformation nature of rubber is kept simultaneously.Peroxide for rubber cross can be a kind of object for containing aerobic-oxygen key
Matter.It may include diacyl peroxide, tert-alkyl peroxy acid esters, alkyl hydroperoxide, dialkyl peroxide, dialkyl group
Peroxy ketal, cumyl peroxide (DCP), benzoyl peroxide (BPO), one 3,3,5- diformazan of 1,1- di-t-butyl peroxy
Butylcyclohexane (BPMC), 2,5--2,5-bis(t-butylperoxy) of dimethyl hexane (DBPMII), 1,3- are bis-, and (tert-butyl peroxy is different
Propyl) benzene (B I PB) etc., without limitation to this present invention.In the embodiment of the present invention, it can be first to the rubber of support membrane 200
It carries out peroxidating processing and support membrane 200 is attached into flexible display panels 100 away from the side for going out light again, be also possible to
Support membrane 200 is first attached to flexible display panels 100 again to carry out the rubber of support membrane 200 away from the side for going out light
Peroxidating processing.
Optionally, the support membrane 200 of the first bent area BA1 includes the rubber handled by ion implanting.The present invention
Ion implanting in embodiment optionally can be by the boron (B) of high energy, nitrogen (N), silicon (Si) Plasma inpouring into rubber, to rubber
Glue is handled, and rubber is hardened, and intensity increases.It is understood that from first bending the 300 to the first bent area of axis side BA1
The implantation concentration of the position of edge, ion is gradually reduced, so that the elasticity modulus of support membrane is gradually reduced.Optionally, non-bent area
The support membrane in domain also may include rubber material, further increase the strong of the support membrane in non-bending region by ion implanting
Degree, makes non-bent area intensity with higher.And bent area ion implantation concentration gradual change, the reversible deformation of rubber is kept, even if
Repeatedly deformation, which occurs, in bent area can also keep the performance for preferably restoring original property.It should be noted that the application couple
In the selection of injected ion, the present invention is not specifically limited, as long as bent area injection ion technical solution all in this hair
In the protection scope of bright embodiment.In the embodiment of the present invention, it can be and ion implanting processing first is carried out to the rubber of support membrane 200
Support membrane 200 is attached into display panel 100 away from the side for going out light again, is also possible to that support membrane 200 is first attached to flexibility
Support membrane carries out ion implanting processing again for the side away from light out of display panel 100, without limitation to this present invention.
It should be noted that the support membrane of non-bent area can be used with the support membrane of bent area in the embodiment of the present application
Identical material and identical technique obtain, to simplify the manufacturing process of display module.
Based on the same inventive concept, the application also provides a kind of display device, show the application reality referring to Figure 12, Figure 12
The schematic diagram of display device provided by example is applied, which includes any display panel described herein.The application
The embodiment of middle display device can be found in the embodiment of above-mentioned display panel, and repeating place, details are not described herein again.It needs to illustrate
That display device provided by the embodiment of the present application can be with are as follows: mobile phone, tablet computer, television set, display, laptop,
Any products or components having a display function such as Digital Frame, navigator.
Through the foregoing embodiment it is found that display panel provided by the invention and display device, at least realizing following has
Beneficial effect: display module includes flexible display panels and support membrane, and support membrane is located at the side of flexible display panels；Display module
It further include the first bent area, the first bent area includes the first bending axis extended in a first direction；First bent area includes first
Sub- bent area, in a second direction, the elasticity modulus of the support membrane in the first sub- bent area are gradually reduced；Second direction is described aobvious
Show mould group institute planar, the direction of the first bending axis to the first bent area boundary.At the support membrane to bent area
Reason, obtains the region of an elasticity modulus gradual change, wherein toward both sides centered on the first bending axis, the elasticity modulus of support membrane according to
Secondary reduction or elasticity modulus are first sequentially reduced to be sequentially increased again, so that bent area obtains an approximate water under bending state
The shape of drop increases bent area crooked process radius in a folded configuration, avoid occurring in the process of bending overflexing cause it is soft
Property display panel failure.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (12)
1. a kind of display module, which is characterized in that including flexible display panels and support membrane, the support membrane is located at the flexibility
The side of display panel；
The display module further includes the first bent area, and first bent area includes the first bending extended in a first direction
Axis；First bent area includes the first sub- bent area, in a second direction, the support membrane in the first sub- bent area
Elasticity modulus is gradually reduced；
Planar for the display module institute, described first bends axis to first bent area boundary to the second direction
Direction.
2. display module as described in claim 1, which is characterized in that the display module further includes the second bent area, along institute
Second direction is stated, second bent area is located at side of the described first sub- bent area far from the first bending axis；
Along the second direction, the elasticity modulus of the support membrane in second bent area is gradually increased.
3. display module as claimed in claim 2, which is characterized in that along the second direction, the width of first bent area
Degree is greater than or equal to the width of second bent area.
4. display module as described in claim 1, which is characterized in that the display module includes folded state, in the folding
There is maximum crooked process radius at the first bending axis under overlapping state.
5. display module as described in claim 1, which is characterized in that the range of the elasticity modulus gradual change of the support membrane is 1
~1011Pa。
6. display module as claimed in claim 5, which is characterized in that the springform of the support membrane described in first bent area
Measuring the gradual change amount in unit length is 108~109Pa/mm。
7. display module as described in claim 1, the support membrane is located at the flexible display panels away from the side for going out light.
8. display module as described in claim 1, which is characterized in that the support membrane of first bent area includes multiple
The different strip glue material of elasticity modulus, the strip glue material extend along the first direction.
9. display module as described in claim 1, which is characterized in that the material of the support membrane includes rubber.
10. display module as claimed in claim 9, which is characterized in that the support membrane of first bent area includes warp
The rubber that peroxide, vulcanization or fluorination treatment obtain.
11. display module as claimed in claim 9, which is characterized in that the support membrane of first bent area includes warp
Cross the rubber that ion implanting is handled.
12. a kind of display device, which is characterized in that include the power described in any item display modules of 1-11.
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| CN201910380075.XA CN110058444B (en) | 2019-05-08 | 2019-05-08 | Display module and display device |
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| CN201910380075.XA CN110058444B (en) | 2019-05-08 | 2019-05-08 | Display module and display device |
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| CN110058444B CN110058444B (en) | 2022-04-12 |
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