CN110211497A - A kind of flexible display screen and electronic equipment - Google Patents
A kind of flexible display screen and electronic equipment Download PDFInfo
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- CN110211497A CN110211497A CN201910480809.1A CN201910480809A CN110211497A CN 110211497 A CN110211497 A CN 110211497A CN 201910480809 A CN201910480809 A CN 201910480809A CN 110211497 A CN110211497 A CN 110211497A
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- backboard
- display screen
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- straightened condition
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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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Abstract
This application discloses a kind of flexible display screen and electronic equipment, including cover board, which can be bent；Display component is arranged between cover board and backboard, Nian Jie with cover board, including multiple electronic components；Backboard, the backboard is Nian Jie with display component, and backboard can be bent；Wherein, flexible display screen has straightened condition and bending state；Wherein in a straightened condition, backboard is able to maintain Nian Jie with display component belongs to same plane on one side.Flexible display screen disclosed in the present application is after switching to straightened condition by bending state, Nian Jie with display component belong to same plane on one side since backboard is able to maintain, so display component can be retracted straightened condition by bending state by the deformation of the adhesive between backboard and display component if display component is still in bending state；Similarly, cover board is returned to straightened condition by bending state by the deformation of the adhesive between display component and cover board, to ensure that no matter be bent how many times, flexible display screen can restore to straightened condition.
Description
Technical field
This application involves display screen manufacture technology fields, and more specifically, it relates to a kind of flexible display screen and electronics
Equipment.
Background technique
Flexible display screen has straightened condition and bending state, and user can bend flexible display screen repeatedly,
After bending number is more, flexible display screen possibly can not restore to straightened condition.
Summary of the invention
In view of this, this application provides a kind of flexible display screen and electronic equipments.
To achieve the above object, the application provides the following technical solutions:
In a first aspect, a kind of flexible display screen, comprising:
Cover board, the cover board can be bent；
Display component is arranged between the cover board and backboard, Nian Jie with the cover board, including multiple electronic components；
The backboard, the backboard is Nian Jie with the display component, and the backboard can be bent；
Wherein, the flexible display screen has straightened condition and bending state；
In a straightened condition, the backboard is able to maintain Nian Jie with the display component to be belonged to the flexible display screen on one side
Same plane.
In an alternative embodiment,
During the flexible display screen switches to bending state by straightened condition, the backboard is along first direction
Length is constant, and the cover board gradually becomes smaller or becomes larger along the length of the first direction, in the bent state, described first
Direction is the circumferential direction of the backboard；
After the flexible display screen switches to straightened condition by bending state, length of the backboard along the first direction
Spend constant, the cover board restores along the length of the first direction to itself length in a straightened condition.
In an alternative embodiment,
During the flexible display screen switches to bending state by straightened condition, the display component is along described
The length in one direction is constant.
In an alternative embodiment,
During the flexible display screen switches to bending state by straightened condition, the backboard is along the first party
To length it is constant, the display component gradually becomes smaller or becomes larger along the length of the first direction；
After the flexible display screen switches to straightened condition by bending state, length of the backboard along the first direction
Spend constant, the display component restores along the length of the first direction to itself length in a straightened condition.
In an alternative embodiment, the backboard will not generate plastic deformation.
In an alternative embodiment, including following any:
The display component includes: display panel；
Or,
The display component includes: display panel and notacoria；
Or,
The display component includes: polaroid, display panel and notacoria；
Or,
The display component includes: polaroid and display panel.
In an alternative embodiment, the cover board includes:
Cover sheet and polaroid, the cover sheet are connect with the polaroid viscosity.
In an alternative embodiment, the backboard is SUS steel disc.
Second aspect, a kind of electronic equipment, comprising: flexible display screen, the flexible display screen include:
Cover board, the cover board can be bent；
Display component is arranged between the cover board and backboard, Nian Jie with the cover board, including multiple electronic components；
The backboard, the backboard is Nian Jie with the display component, and the backboard can be bent；
Wherein, the flexible display screen has straightened condition and bending state；
In a straightened condition, the backboard is able to maintain Nian Jie with the display component to be belonged to the flexible display screen on one side
Same plane.
In an alternative embodiment,
During the flexible display screen switches to bending state by straightened condition, the backboard is along first direction
Length is constant, and the cover board gradually becomes smaller or becomes larger along the length of the first direction, in the bent state, described first
Direction is the circumferential direction of the backboard；
After the flexible display screen switches to straightened condition by bending state, length of the backboard along the first direction
Spend constant, the cover board restores along the length of the first direction to itself length in a straightened condition.
It can be seen via above technical scheme that flexible display screen provided by the present application, including cover board, display component and back
Plate, Nian Jie by adhesive between cover board and display component, Nian Jie by adhesive between display component and backboard, Flexible Displays
Screen have straightened condition and bending state, in a straightened condition, backboard be able to maintain it is Nian Jie with display component belong on one side it is same
Plane；Bending state is switched to by straightened condition in flexible display screen, then after switching to straightened condition by bending state, due to back
Plate be able to maintain it is Nian Jie with the display component belong to same plane on one side, so if display component still in bending state,
Adhesive between backboard and display component can generate deformation, and the deformation of the adhesive between backboard and display component can will be shown
Component retracts straightened condition by bending state；Similarly, since display component is drawn back into straightened condition, i.e. display component and cover board
Bonding belong to same plane on one side, then, if cover board still in bending state, then, between display component and the cover board
Adhesive can generate deformation, and cover board is returned to flat by bending state by the deformation of the adhesive between display component and cover board
State, to ensure that no matter be bent how many times, flexible display screen can restore to straightened condition.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structure chart of implementation of flexible display screen disclosed in the embodiment of the present application；
Fig. 2 a-2b is first direction schematic diagram；
Fig. 3 a-3b is flexible display screen excurvation and interior curved schematic diagram；
Fig. 4 a-4b be flexible display screen display component along the length of first direction it is constant in the case where, flexible display screen
Along the section schematic diagram of first direction；
Fig. 5 a-5d is the structure chart of another four kinds of implementations of flexible display screen disclosed in the embodiment of the present application；
Fig. 6 is a kind of structural schematic diagram of polaroid；
Fig. 7 is the structure chart of another implementation of flexible display screen disclosed in the embodiment of the present application；
Fig. 8 is a kind of structure chart of implementation of electronic equipment disclosed in the embodiment of the present application；
Fig. 9 is that the display screen of electronic equipment includes the schematic diagram of flexible display screen and common display screen.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
The application is first introduced the basic conception of flexible display screen.
Flexible display screen is the deformable and flexible display device made of soft material, has low in energy consumption, body
The advantages that product is small, light and thin, display mode is various, convenient transportation, simple installation, image quality are high, waterproof performance is good.
In an alternative embodiment, flexible display screen can be the organic hair for using phosphorescence organic light-emitting device (PHOLED)
Optical diode display screen (Organic Light-Emitting Diode, OLED), OLED technology has self-luminous, visual angle here
Extensively, the advantages that contrast is high, low in energy consumption, reaction speed is high.Certainly, flexible display screen may be its in addition to flexible OLED screen
Its display screen, such as flexible liquid crystal screen (Liquid Crystal Display, LCD).
Above-mentioned flexible display screen has the disadvantages that flexible display screen has straightened condition and bending state, Yong Huke
To be bent repeatedly to flexible display screen, after bending number is more, flexible display screen possibly can not restore to straightened condition.
Current flexible display screen generally includes the layer structure of multiple plastic materials, for example, cover board, notacoria etc..One
In alternative embodiment, flexible display screen can not restore to the reason of straightened condition include it is following at least one:
Since after bending repeatedly plastic deformation may occur for the layer structure using plastic material, plastic deformation is occurring
Afterwards, layer structure will be unable to restore to straightened condition, be always maintained at bending state.I.e. user bends flexible display screen repeatedly
Afterwards, plastic deformation may occur because of layer structure, causes flexible display screen that can not restore to straightened condition.
The embodiment of the present application discloses a kind of new flexible display screen, to solve the above problems.
It specifically may refer to shown in Fig. 1, be a kind of knot of implementation of flexible display screen disclosed in the embodiment of the present application
Composition.As shown in Figure 1, the flexible display screen includes: cover board 1, display component 2 and backboard 3.Wherein, cover board 1, display component 2
And backboard 3 is cascading, to form complete flexible display screen.Next above-mentioned three parts are illustrated respectively.
First, cover board 1 shown in Figure 1.
In the embodiment of the present application, cover board 1 can be installed on display component 2, to cover display component 2, so as to more
Display component 2 is protected well.
It is understood that cover board 1 can be bent.Optionally, the material of cover board 1 can be plastic material.
It optionally, can be with seal coat, such as protective film, to prevent flexible display screen quilt during factory on cover board 1
Damage, for example, there is scratch.
Second, display component 2 shown in Figure 1.
In the embodiment of the present application, display component 2 includes multiple electronic components, and multiple electronic components can at least show figure
The information such as picture, text, to realize the basic function of flexible display screen.
Above-mentioned electronic component can be set on circuit boards, and electronic component can include but is not limited to: organic light-emitting diodes
At least one of pipe, driving circuit, coating of organic material and the image collection assembly of driving organic light-emitting diode.
It is understood that display component 2 can be set between cover board 1 and backboard 3.Optionally, to make display component 2
It can be more snugly fitted to together, can make Nian Jie by adhesive between display component 2 and cover board 1 with cover board 1.Here,
Bonding be by adhesive on a solid surface caused by bonding force, by of the same race or same material is not securely attached together
Method.
Optionally, above-mentioned adhesive can be pressure sensitive adhesive (Pressure Sensitive Adhesive, PSA) or light
Learn glue.
Pressure sensitive adhesive and optical cement are introduced separately below.
Wherein, pressure sensitive adhesive is a kind of adhesive for having and having sensibility to pressure, is usually used in preparing pressure sensitive adhesive tape.General feelings
Under condition, the cohesive force (active force between pressure-sensitive xanthan molecule) of pressure sensitive adhesive be greater than pressure sensitive adhesive peeling force (adhesive tape with by viscous table
The peeling force that face pressurization is showed after pasting), and it is less than the base adhesion force (adhesive force between pressure sensitive adhesive and substrate) of pressure sensitive adhesive,
So that phenomena such as pressure sensitive adhesive is not in degumming in use.In addition, pressure sensitive adhesive has very strong convergent force and stretching
Power.
Optical cement is polymer substance a kind of close with the optical property of optical element and with excellent adhesive performance, tool
Have colorless and transparent, light transmission rate 90% or more, adhesive strength it is good, can solidify under room temperature or medium temperature and have cure shrinkage small
The features such as.Optical cement can be bonded as two or more optical elements being able to satisfy the optical module of light path design requirement.Such as
Optical cement can be OCA (Optically Clear Adhesive) optical cement.OCA optical cement is to utilize optics acrylic glue shape
At substrate, then substrate upper and lower surface be respectively bonded one layer of release film formation two-sided fitting adhesive tape.
Third, backboard 3 shown in Figure 1.
Backboard 3 is the basis for making flexible display screen.In the embodiment of the present application, to allow backboard 3 and display component 2 more
It is tightly bonded together, backboard 3 can be Nian Jie by adhesive with display component 2.Here, adhesive can for pressure sensitive adhesive or
Person's optical cement.
It is understood that backboard 3 can be bent.In addition, backboard 3 has very strong resilience in the embodiment of the present application,
So as to no matter carry out how many times bending remain to restore to straightened condition, i.e., no matter user bends how many times Flexible Displays repeatedly
Screen, in the case where flexible display screen is in straightened condition, backboard 3 it is Nian Jie with display component 2 belong to a plane on one side.In addition, back
Plate 3 also has flexibility, allows backboard 3 is flexible to bend.
To sum up, by the flexible display screen that above-mentioned cover board 1, display component 2 and backboard 3 are constituted can have straightened condition and
Bending state, and flexible display screen is in a straightened condition, and backboard 3 is able to maintain Nian Jie with display component 2 belong on one side together
One plane.Here, " belong to same plane " and refer to the point being generally aligned in the same plane in the one side Nian Jie with display component 2 of backboard 3
Total number is greater than or equal to first threshold, and above-mentioned first threshold may be set according to actual conditions；Or backboard 3 and display component 2
The point of the one side whole of bonding is respectively positioned on same plane.That is, flexible display screen is in a straightened condition, backboard 3 and display component 2 are viscous
What is connect is a plane on one side.
In an alternative embodiment, backboard 3 can substitute notacoria protection display component 2, i.e., regard backboard 3 as notacoria.
It is successively to be bonded display component and cover board using backboard 3 as substrate during making flexible display screen
On backboard 3, since during making flexible display screen, flexible display screen is in straightened condition, so backboard 3 and display
What component 2 was bonded is a plane on one side, so after display component 2 is bonded on backboard 3, between backboard 3 and display component 2
Adhesive the entire surface of display component 2 can be evened up so that 2 place face of display component be a plane, due to display component 2
Place face is a plane, and after cover board 1 is bonded on display component 2, the adhesive between display component 2 and cover board 1 can will be covered
The entire surface of plate 1 is evened up, so that 1 place face of cover board is a plane, so that each layer of flexible display screen is in approximately the same plane
On, production flexible display screen in this way is more easier, more quickly.
Flexible display screen provided by the present application, including cover board 1, display component 2 and backboard 3, cover board 1 and display component 2
Between be bonded by adhesive, Nian Jie by adhesive between display component 2 and backboard 3, flexible display screen is with straightened condition
And bending state, in a straightened condition, backboard 3 it is Nian Jie with display component 2 belong to same plane on one side；Flexible display screen by
Straightened condition switches to bending state, then after switching to straightened condition by bending state, due to backboard 3 be able to maintain with it is described aobvious
Show that the bonding of component 2 belongs to same plane on one side, so if display component 2 is still in bending state, backboard 3 and display component 2
Between adhesive can generate deformation, the deformation of the adhesive between backboard 3 and display component 2 can be by display component 2 by being bent
State retracts straightened condition；Similarly, since display component 2 is drawn back into straightened condition, i.e. display component 2 Nian Jie with cover board 1 one
Face belongs to same plane, then, if cover board 1 still in bending state, then, the gluing between display component 2 and the cover board 1
Agent can generate deformation, and cover board 1 is returned to flat by bending state by the deformation of the adhesive between display component 2 and cover board 1
State, to ensure that no matter be bent how many times, even if plastic deformation occurs for the layer structure using plastic material, flexible display screen is still
It can restore to straightened condition.
It is understood that flexible display screen can switch between straightened condition and bending state, flexible display screen exists
Under bending state, each layer (for example, backboard 3, display component 2, cover board 1) for including due to flexible display screen has certain
Thickness, so bending radius corresponding to each layer of flexible display screen is different, if flexible display screen is in a straightened condition, each layer is
Each layer of equal length on one direction, i.e. flexible display screen can be aligned in port 24, and each layer of flexible display screen is in port
25 (referring to fig. 2 shown in a) can be aligned.So, in order to improve user experience, flexible display screen is under bending state, flexible
Each layer of display screen still is able to be aligned in port 24, and each layer of flexible display screen still is able to be aligned in port 25, then needs soft
Property display screen bending state is switched to by straightened condition during, flexible display screen include it is at least one layer of in a first direction
Length be gradually increased or reduce.It is understood that the process of straightened condition is switched to by bending state in flexible display screen
In, length is gradually increased or reduced layer in a first direction, needs to restore to the original length for being in straightened condition.
In an alternative embodiment, if flexible display screen is in a straightened condition, the length of each layer in a first direction not phase
Deng during flexible display screen switches to bending state by straightened condition, flexible display screen includes at least one layer of the
Length on one direction can also be gradually increased or reduce.It is understood that being switched in flexible display screen by bending state
During straightened condition, length is gradually increased or reduced layer in a first direction, needs to restore to originally in flat
The length of state.
First direction is illustrated first below, specifically may refer to Fig. 2 a-2b.
A referring to fig. 2, in the case where flexible display screen is in bending state, first direction is the week of flexible display screen dorsulum 3
To.Optionally, in the case where flexible display screen is in bending state, flexible display screen may be at " column " shape shown in Fig. 2 a.It can
With understanding, the cross section for being somebody's turn to do the flexible display screen of " column " is round or elliptical at least part, then above-mentioned circumferential direction is vertical
Directly in the circle or elliptical axis, both perpendicular to the circle or elliptical radial direction.
To sum up, first direction is the bending direction of flexible display screen shown in Fig. 2 a thick line, shows two arrows in Fig. 2 a,
First direction can be direction pointed by any arrow.
Certainly, flexible display screen is also in straightened condition.Similarly, b referring to fig. 2 is in straight in flexible display screen
Under state, first direction is still the circumferential direction of flexible display screen dorsulum 3, since flexible display screen is in straightened condition, phase at this time
Be located on the big circle of an infinite radius or an elliptical circumference when in flexible display screen, first direction be still perpendicular to this half
The circle or elliptical axis of diameter infinity, both perpendicular to the circle or elliptical radial direction, as direction shown in Fig. 2 b thick line.
Below to flexible display screen during straightened condition and bending state switch, each layer length in a first direction
Variation be illustrated.
The first, in an alternative embodiment, flexible display screen can switch between straightened condition and bending state, then
In above-mentioned stateful switchover process, cover board 1 may change along the length of first direction, and backboard 3 is along the length of first direction
Degree can be constant.
The first above-mentioned situation can specifically include:
During the flexible display screen switches to bending state by straightened condition, the backboard is along first direction
Length is constant, and the cover board gradually becomes smaller or becomes larger along the length of the first direction；In the flexible display screen by curved
After curved state switches to straightened condition, the backboard is constant along the length of the first direction, and the cover board is along the first party
To length restore to itself length in a straightened condition.
Optionally, during flexible display screen switches to bending state by straightened condition, backboard 3 is shown in Fig. 2 a
The length of first direction can be constant；And make after flexible display screen switches to straightened condition by bending state, 3 edge of backboard
The length of first direction shown in Fig. 2 b can be constant.
It is understood that flexible display screen can within it is curved, can be with excurvation.
Wherein, referring to Fig. 3 a, for flexible display screen after bending state, the bending radius of cover board 1 is greater than the curved of backboard 3
Bending state in this case is defined as excurvation by bilge radius, the application.In this case, in flexible display screen by straightened condition
During switching to excurvation state, cover board 1 can become larger along the length of first direction；And in flexible display screen by outer
After curved state switches to straightened condition, due to the adhesive between backboard 3 and display component 2 deformation can by display component 2 by
Excurvation state retracts the deformation of the adhesive between straightened condition and display component 2 and cover board 1 for cover board 1 by excurvation state
It is returned to straightened condition, cover board 1 is restored along the length of first direction to itself length in a straightened condition.
Referring to Fig. 3 b, for flexible display screen after bending state, the bending radius of cover board 1 is less than the bending half of backboard 3
Bending state in this case is defined as interior curved by diameter, the application.In this case, switched in flexible display screen by straightened condition
To interior curved state, cover board 1 can gradually become smaller along the length of first direction；And in flexible display screen by interior curved shape
After state switches to straightened condition, since the deformation of the adhesive between backboard 3 and display component 2 can be by display component 2 by interior curved
The deformation that state retracts the adhesive between straightened condition and display component 2 and cover board 1 is retracted cover board 1 by interior curved state
To straightened condition, so that cover board 1 restores along the length of first direction to itself length in a straightened condition.
Second, in an alternative embodiment, flexible display screen can switch between straightened condition and bending state, then
In above-mentioned stateful switchover process, cover board 1 does not change along the length of first direction, and backboard 3 along first direction length not
Become.
The process that cover board 1 can not switch with flexible display screen in bending state and straightened condition along the length of first direction
It changes.I.e. during flexible display screen switches to bending state by straightened condition, length of the cover board 1 along first direction
It can be constant；And after flexible display screen switches to straightened condition by bending state, cover board can be with along the length of first direction
It is constant.
The third, in some embodiments, flexible display screen can switch between straightened condition and bending state, then exist
In above-mentioned stateful switchover process, display component 2 may change along the length of first direction, and backboard 3 is along first direction
Length can be constant, which can specifically include:
During the flexible display screen switches to bending state by straightened condition, the backboard is along the first party
To length it is constant, the display component gradually becomes smaller or becomes larger along the length of the first direction；In the flexible display screen
After switching to straightened condition by bending state, the backboard is constant along the length of the first direction, and the display component is along institute
The length for stating first direction is restored to itself length in a straightened condition.
Optionally, during flexible display screen switches to bending state by straightened condition, backboard 3 is shown in Fig. 2 a
The length of first direction can be constant；And make after flexible display screen switches to straightened condition by bending state, 3 edge of backboard
The length of first direction shown in Fig. 2 b can be constant.
It is understood that flexible display screen can within it is curved, can be with excurvation.
Wherein, during flexible display screen switches to excurvation state by straightened condition, display component 2 is along first direction
Length can become larger；And after flexible display screen switches to straightened condition by excurvation state, due to backboard 3 and display
Display component 2 can be retracted straightened condition by excurvation state by the deformation of the adhesive between component 2, so that display component 2 is along
The length in one direction can be restored to itself length in a straightened condition.
During flexible display screen switches to interior curved state by straightened condition, length of the display component 2 along first direction
Degree can gradually become smaller；And after flexible display screen switches to straightened condition by interior curved state, due to backboard 3 and display component
Display component 2 can be retracted straightened condition by interior curved state by the deformation of the adhesive between 2, so that display component 2 is along first party
To length restore to itself length in a straightened condition.
4th kind, in some embodiments, flexible display screen can switch between straightened condition and bending state, then exist
In above-mentioned stateful switchover process, display component 2 is constant along the length of first direction, and backboard 3 is constant along the length of first direction.
In view of display component 2 includes multiple electronic components, if flexible display screen is switching to bending by straightened condition
During state, the length of display component 2 changes, then the position of display component 2 may where above-mentioned multiple electronic components
It changes, may cause flexible display screen overall failure, or, certain functional faults of flexible display screen, or, electronic component damages
It is bad.Based on this, during flexible display screen switches to bending state by straightened condition, display component 2 is along first direction
Length can be constant, damages to avoid the electronic component being arranged on display component 2 because being squeezed, and then may cause flexibility
Certain functional faults of display screen overall failure or flexible display screen.
The section schematic diagram of flexible display screen may refer to Fig. 4 a to Fig. 4 b.Fig. 4 a and Fig. 4 b are cutting on first direction
Face figure, Fig. 4 a are that flexible display screen is under straightened condition, and exemplary 4 electronic components that display component 2 includes are in display group
Position in part 2, it is assumed that the length of display component 2 in a first direction is 7cm, and the position 1 of electronic component 1 is apart from display group
0.1cm on the left of part, the position 2 of electronic component 2 are apart from 3cm on the left of display component, and the position 3 of electronic component 3 is distance display
5cm on the left of component, the position 4 of electronic component 4 are apart from 6cm on the left of display component.
If flexible display screen is under bending state, display component 2 is constant along the length of first direction, therefore display group
The relative position of each electronic component is constant in part 2, then, as shown in Figure 4 b, 2 left side of position 1 and display component of electronic component 1
Between arc length be 0.1cm, the arc length between 2 left side of the position 2 of electronic component 2 and display component is 3cm, electronics
Arc length between on the left of the position 3 of element 3 and display component is 5cm, the position 4 of electronic component 4 and display component left side
Between arc length 6cm.
To sum up, include following several situations during flexible display screen switches between straightened condition and bending state:
Cover board 1, display component 2 and backboard 3 are constant along the length of first direction, alternatively, at least one in cover board 1, display component 2
Length along first direction changes.
It is aforementioned and to there is very strong resilience it has been described that backboard 3 can be used as the substrate of flexible display screen, thus
How many times no matter are bent to remain to restore to straightened condition.Therefore, in some embodiments of the present application, the backboard 3 of flexible display screen
Plastic deformation will not be generated.Here, for plastic deformation is relative resilient deformation.Elastic deformation can after referring to removing external force
Restorable deformation.If the deformation of object is more than elastic limit, so that object can not restore former completely even if removing external force
This deformation that object occurs then can be called plastic deformation by shape.
The material of backboard 3 can be plastics, metal foil, ultra-thin glass, papery, biological laminated film.One kind is preferably
In the case of, in the embodiment of the present application, to make no matter flexible display screen is bent how many times, it can restore to straightened condition, backboard 3
SUS steel disc can be selected.Here, SUS is Japanese stainless steel material standard.
The reason of SUS steel disc can be selected to the backboard of flexible display screen 3 below, is illustrated.
First, SUS steel disc are relatively thin, can achieve 50um and thickness below at present, so that SUS steel disc is with higher
Flexibility, even if bending repeatedly, can still restore to straightened condition.Also, using micron order or the SUS steel of following thickness
The thickness of flexible display screen can be effectively reduced as backboard 3 in piece.
The planarization that second, SUS steel disc are in straightened condition is preferable, thus make no matter flexible display screen is bent how many times,
Still can be relatively flat in its recovery to straightened condition, i.e., the appearance of flexible display screen restores more preferable.
The machining accuracy of third, SUS steel disc is higher, so as to so that flexible display screen is more beautiful.
4th, SUS steel disc corrosion resistance with higher, there is higher plasticity and toughness under low temperature, room temperature and high temperature,
And preferable cold forming and weldability.
The high temperature resistance of 5th, SUS steel disc is higher, can generally achieve 1000 DEG C or more, thus flexible aobvious in production
During display screen using SUS steel disc is there is no for the use of heat-resisting the problem of.
6th, SUS steel disc have good electric conductivity, outstanding steam and oxygen-barrier property, higher elasticity modulus, compared with
Low thermal expansion coefficient can simultaneously be mass produced.
In the embodiment of the present application, since backboard 3 will not generate plastic deformation and backboard 3 can select flexible micron order
Or the SUS steel disc of following thickness, it ensure that during flexible display screen switches to bending state by straightened condition, backboard 3
Length along first direction is constant.
In the embodiment of the present application, for the structure of display component 2, flexible display screen can have a variety of implementations, this
Application is provided but is not limited to following several.
The first: display component 2 may include display panel 21, may include cover board 1, display based on this flexible display screen
Panel 21 and backboard 3, specifically may refer to Fig. 5 a.
It is aforementioned it has been described that display component 2 is for showing the information such as image, text, therefore display component 2 at least can be with
Including display panel 21.
Optionally, display panel 21 can be liquid crystal display or organic light-emitting diode (OLED) display screen.
Optionally, cover board 1 and backboard 3 can form an accommodation space, at least for accommodating above-mentioned electronic component, to be formed
Display panel 2.
Optionally, above-mentioned display panel 21 can be Nian Jie with cover board 1 and notacoria 3 by adhesive, to improve display panel
21 structural stability.
It is understood that during flexible display screen switches to bending state by straightened condition, if display panel
21 change along the length of first direction, then may cause the electronic component damage for including in display panel 21, and then cause
Display panel 21 damages, thus it is a kind of preferably in the case of, display panel 21 can be made constant along the length of first direction；Another
In one alternative embodiment, display panel 21 changes along the length of first direction.
When flexible display screen switches to straightened condition by bending state, due to the one side Nian Jie with display component 2 of backboard 3
Belong to same plane, i.e., backboard 3 be able to maintain it is Nian Jie with display panel 21 belong to same plane on one side, so if display panel 21
Still in bending state, then the adhesive between backboard 3 and display panel 21 can generate deformation, backboard 3 and display panel 21 it
Between the deformation of adhesive display panel 21 can be retracted straightened condition by bending state；Similarly, since display panel 21 is drawn
Being back to straightened condition, i.e., display panel 21 is Nian Jie with cover board 1 belongs to same plane on one side, then, if cover board 1 is still in bending
State, then, the adhesive between display panel 21 and cover board 1 can generate deformation, the adhesive between display panel 21 and cover board 1
Deformation cover board 1 is returned to straightened condition by bending state, to ensure that no matter be bent how many times, flexible display screen can
It is enough to restore to straightened condition.
In the first way, flexible display screen can not include notacoria, backboard 3 can substitute notacoria for protect display
Panel 21.
Second: display component 2 may include display panel 21 and notacoria 22, may include based on this flexible display screen
Cover board 1, display panel 21, notacoria 22 and backboard 3, specifically may refer to Fig. 5 b.
In the embodiment of the present application, display component 2 can also include notacoria 22 in addition to including display panel 21, here notacoria
22 can be such that display panel 21 more planarizes, in favor of techniques such as cutting, IC bondings later.
In an alternative embodiment, notacoria 22 can use plastic material, for example, polyimide plastic (Polyimide,
PI) material.
Optionally, can be bonded by adhesive between notacoria 22 and display panel 21, to make notacoria 22 and display surface
Plate 21 can be more snugly fitted to together.Optionally, adhesive here can be pressure sensitive adhesive, optical cement or other have
The material of adhesive effect.
It is understood that during flexible display screen switches to bending state by straightened condition, notacoria 22 and
Display panel 21 can be constant along the length of first direction, then switching to straightened condition by bending state in flexible display screen
During, notacoria 22 and display panel 21 are constant along the length of first direction；Alternatively, in flexible display screen by flat
During state switches to bending state, at least one in notacoria 22 and display panel 21 becomes along the length of first direction
Change, then length changes in a first direction during flexible display screen switches to straightened condition by bending state
Notacoria 22 and/or display panel 21 restore to be in straightened condition length.
When flexible display screen switches to straightened condition by bending state, due to the one side Nian Jie with display component 2 of backboard 3
Belong to same plane, i.e., backboard 3 be able to maintain it is Nian Jie with notacoria 22 belong to same plane on one side, so if notacoria 22 is still in curved
Curved state, then the adhesive between backboard 3 and notacoria 22 can generate deformation, the deformation of the adhesive between backboard 3 and notacoria 22
Notacoria 22 can be retracted straightened condition by bending state；Similarly, since notacoria 22 is drawn back into straightened condition, i.e. notacoria 22 and aobvious
Show panel 21 be bonded belong to same plane on one side, then, if display panel 21 still in bending state, then, notacoria 22 with
Adhesive between display panel 21 can generate deformation, and the deformation of the adhesive between notacoria 22 and display panel 21 is by display surface
Plate 21 is returned to straightened condition by bending state；Since display panel 21 is drawn back into straightened condition, i.e. display panel 21 and lid
Plate 1 bonding belongs to same plane on one side, then, if cover board 1 still in bending state, then, between display panel 21 and cover board 1
Adhesive can generate deformation, cover board 1 is returned to by the deformation of the adhesive between display panel 21 and cover board 1 by bending state
Straightened condition, to ensure that no matter be bent how many times, flexible display screen can restore to straightened condition.
The third: display component 2 may include polaroid (Polarizer, POL) 23, display panel 21 and notacoria 22,
It may include cover board 1, polaroid 23, display panel 21, notacoria 22 and backboard 3 based on this flexible display screen, can specifically join
See Fig. 5 c.
In the embodiment of the present application, display component 2 can also include polaroid in addition to including display panel 21 and notacoria 22
23。
Wherein, 23 full name of polaroid is polarisation vibration piece, can control the polarization direction of particular beam.Natural light passes through polaroid
When, the direction of vibration light vertical with polaroid transmission axis will be absorbed, and only be left direction of vibration and polaroid transmission axis through light
Parallel polarised light.
Referring to Fig. 6, optionally, polaroid mainly by polyvinyl alcohol film (PVA) 233, three cellulose acetate membrane (TAC) 232,
Protective film 231, release film 235 and pressure sensitive adhesive 234 etc. are combined.Wherein, PVA film 233 can adsorb the two of iodine to absorbing point
After son through extension orientation, play the role of polarization, be the core of polaroid, determine polaroid polarizing properties,
The critical opticals index such as transmitance, tone；It, can be each compound in the two sides of PVA film 233 in order to protect the physical characteristic of light polarizing film
One layer there is high light transmission rate, water-tolerant to have the TAC film 232 of certain mechanical strength to be protected again；The one side of protective film 231
It is coated with pressure-sensitive adhesive, is fitted on polaroid and can protect polaroid ontology not by damage；Pressure sensitive adhesive 234 determines
The adhesive performance and patch processing performance of polaroid；It is not damaged that release film 235 can protect pressure sensitive adhesive 234, avoids generating patch
Close bubble.
It is understood that during flexible display screen switches to bending state by straightened condition, if polaroid 23
Length along first direction changes, then the polarization direction and expection that may cause 23 particular beam of polaroid are not inconsistent, therefore
It is a kind of preferably in the case of, polaroid 23 can be made constant along the length of first direction；In another alternative embodiment, in flexibility
During display screen switches to bending state by straightened condition, polaroid 23 changes along the length of first direction.
To sum up, in the third structure, during flexible display screen switches between straightened condition and bending state,
Polaroid 23, display panel 21, the length of notacoria 22 in a first direction are constant, alternatively, polaroid 23, display panel 21,
The length of at least one in notacoria 22 in a first direction changes.
4th kind: display component 2 may include polaroid 23 and display panel 21, can wrap based on this flexible display screen
Cover board 1, polaroid 23, display panel 21 and backboard 3 are included, specifically may refer to Fig. 5 d.
In the embodiment of the present application, display component 2 can only include display panel 21 and polaroid 23.Wherein, polaroid
23 can be used for controlling the polarization direction of particular beam, and display panel 21 is allowed to show the information such as image, text.
In the 4th kind of structure, backboard 3 substitutes notacoria 22 for protecting display panel 21.
In the alternative embodiment of the application, cover board 1 may include cover sheet 11 and polaroid 12, based on this flexibility
Display screen may include cover sheet 11, polaroid 12, display component 2 and backboard 3, specifically may refer to Fig. 7.
In an alternative embodiment, cover board 1 and display component 2 may each comprise polaroid, it is to be understood that LCD screen
To information such as display image, texts, at least two polaroids are needed, optionally, in the embodiment of the present application, cover board 1 be can wrap
Include an at least polaroid 12, the polaroid can with polaroid 23 in above-mentioned display component 2 collectively as two of LCD screen partially
Mating plate.Wherein it is possible to regard polaroid 23 as down polaroid, the light beam that backlight is generated is converted to polarised light；It can incite somebody to action
Polaroid 12 is used as upper polaroid, to parse the polarised light after liquid crystal electrical modulation, comparison of light and shade is generated, to generate display picture
Face.
In another alternative embodiment, if cover board 1 includes polaroid, display component 2 does not include polaroid.Optionally,
During flexible display screen switches to excurvation state by straightened condition, cover board 1 can gradually become along the length of first direction
It greatly or gradually becomes smaller, comprising: at least one in cover sheet 11 and polaroid 12 can gradually become along the length of first direction
Greatly or gradually become smaller.
In the embodiment of the present application, it is not damaged that cover sheet 11 can protect polaroid 12, display component 2 and backboard 3.
Optionally, can be connected by adhesive viscosity between cover sheet 11 and polaroid 12, thus cover board 11 and partially
It can be preferably bonded together between mating plate 12.
Bending state is switched to by straightened condition in flexible display screen, then after switching to straightened condition by bending state, by
In backboard 3 be able to maintain it is Nian Jie with the display component 2 belong to same plane on one side, so if display component 2 is still in bending
State, then the adhesive between backboard 3 and display component 2 can generate deformation, the adhesive between backboard 3 and display component 2
Display component 2 can be retracted straightened condition by bending state by deformation；Similarly, since display component 2 is drawn back into straightened condition, i.e.,
Display component 2 is Nian Jie with polaroid 12 to belong to same plane on one side, then, if polaroid 12 still in bending state, then, show
Show the adhesive that the adhesive between component 2 and the polaroid 12 can generate deformation, between display component 2 and polaroid 12
Polaroid 12 is returned to straightened condition by bending state by deformation；Since polaroid 12 is drawn back into straightened condition, i.e. polaroid
12 it is Nian Jie with cover sheet 11 belong to same plane on one side, then, if cover sheet 11 still in bending state, then, polarisation
Adhesive between piece 12 and the cover sheet 11 can generate deformation, the adhesive between polaroid 12 and cover sheet 11
Cover sheet 11 is returned to straightened condition by bending state by deformation.To ensure that no matter be bent how many times, flexible display screen
It can restore to straightened condition.
It should be noted that Fig. 5 a-5d and Fig. 7 are only several optional examples, the application does not limit Flexible Displays
The structure of screen.
Flexible display screen is described in detail in above-mentioned disclosed embodiments, it can for the flexible display screen of the application
To be applied to electronic equipment, specific embodiment is given below, electronic equipment disclosed in the present application is described in detail.
Electronic equipment disclosed in the embodiment of the present application can be the equipment such as smart phone, tablet computer.Referring to Fig. 8, the electricity
Sub- equipment 80 may include flexible display screen 801 as shown in Figure 1, the flexible display screen 801 include cover board 1, display component 2 with
And backboard 3.It should be noted that electronic equipment 80 is not limited to the above content, it can also include other assemblies.
Wherein, cover board 1 can be bent；Display component 2 is arranged between cover board and backboard, and Nian Jie with cover board 1, display
Component 2 may include multiple electronic components；Backboard 3 is Nian Jie with display component 2, and backboard 3 can be bent.
In the embodiment of the present application, the flexible display screen 801 that electronic equipment 80 includes can have straightened condition and bending
State, in a straightened condition, backboard 3 is able to maintain Nian Jie with display component belongs to same plane to the flexible display screen 801 on one side.
Here, flexibility disclosed in the structure and above-mentioned the embodiment of the present application of the flexible display screen 801 that electronic equipment 80 includes
The structure of display screen is corresponding, can refer to the introduction in above-mentioned flexible display screen in detail, is no longer described in detail here.
Optionally, the display screen of electronic equipment 80 can also partially can be Flexible Displays with all flexible display screens 801
Screen 801, such as shown in Fig. 9, the display screen of electronic equipment 80 disclosed in the embodiment of the present application may include flexible display screen 801 with
And common display screen 802.Here, common display screen 802 can be LCD screen, be also possible to electric ink (Electronic
Ink, E-ink) screen.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device or system class embodiment, since it is basically similar to the method embodiment, so be described relatively simple, it is related
Place illustrates referring to the part of embodiment of the method.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of flexible display screen, comprising:
Cover board, the cover board can be bent；
Display component is arranged between the cover board and backboard, Nian Jie with the cover board, including multiple electronic components；
The backboard, the backboard is Nian Jie with the display component, and the backboard can be bent；
Wherein, the flexible display screen has straightened condition and bending state；
In a straightened condition, the backboard is able to maintain Nian Jie with the display component belong on one side together to the flexible display screen
One plane.
2. flexible display screen according to claim 1,
During the flexible display screen switches to bending state by straightened condition, length of the backboard along first direction
Constant, the cover board gradually becomes smaller or becomes larger along the length of the first direction, in the bent state, the first direction
For the circumferential direction of the backboard；
After the flexible display screen switches to straightened condition by bending state, the backboard along the first direction length not
Become, the cover board restores along the length of the first direction to itself length in a straightened condition.
3. flexible display screen according to claim 1 or claim 2,
During the flexible display screen switches to bending state by straightened condition, the display component is along the first party
To length it is constant.
4. flexible display screen according to claim 1 or claim 2,
During the flexible display screen switches to bending state by straightened condition, the backboard is along the first direction
Length is constant, and the display component gradually becomes smaller or becomes larger along the length of the first direction；
After the flexible display screen switches to straightened condition by bending state, the backboard along the first direction length not
Become, the display component restores along the length of the first direction to itself length in a straightened condition.
5. according to claim 1 to 2 any flexible display screens, the backboard will not generate plastic deformation.
6. according to claim 1 to 2 any flexible display screens, including following any:
The display component includes: display panel；
Or,
The display component includes: display panel and notacoria；
Or,
The display component includes: polaroid, display panel and notacoria；
Or,
The display component includes: polaroid and display panel.
7. according to claim 1 to 2 any flexible display screens, the cover board includes:
Cover sheet and polaroid, the cover sheet are connect with the polaroid viscosity.
8. the backboard is SUS steel disc according to claim 1 to 2 any flexible display screens.
9. a kind of electronic equipment, comprising: flexible display screen, the flexible display screen include:
Cover board, the cover board can be bent；
Display component is arranged between the cover board and backboard, Nian Jie with the cover board, including multiple electronic components；
The backboard, the backboard is Nian Jie with the display component, and the backboard can be bent；
Wherein, the flexible display screen has straightened condition and bending state；
The flexible display screen in a straightened condition, the backboard be able to maintain it is Nian Jie with the display component belong on one side it is same
Plane.
10. electronic equipment according to claim 9,
During the flexible display screen switches to bending state by straightened condition, length of the backboard along first direction
Constant, the cover board gradually becomes smaller or becomes larger along the length of the first direction, in the bent state, the first direction
For the circumferential direction of the backboard；
After the flexible display screen switches to straightened condition by bending state, the backboard along the first direction length not
Become, the cover board restores along the length of the first direction to itself length in a straightened condition.
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| CN201910480809.1A CN110211497B (en) | 2019-06-04 | 2019-06-04 | Flexible display screen and electronic equipment |
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| CN201910480809.1A CN110211497B (en) | 2019-06-04 | 2019-06-04 | Flexible display screen and electronic equipment |
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