CN107301821A - foldable display screen and display device - Google Patents
foldable display screen and display device Download PDFInfo
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- CN107301821A CN107301821A CN201710644408.6A CN201710644408A CN107301821A CN 107301821 A CN107301821 A CN 107301821A CN 201710644408 A CN201710644408 A CN 201710644408A CN 107301821 A CN107301821 A CN 107301821A
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- display screen
- foldable display
- elastic layer
- extra play
- flexible portion
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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
The application is related to foldable display screen and display device.Foldable display screen has folded state and deployed condition, including：Part I；Part II, in a folded configuration, Part I are relative with Part II；Flexible portion, Part I connects via flexible portion with Part II, and foldable display screen is folded in flexible part office, and flexible portion has the first surface and second surface being oppositely arranged along foldable display screen thickness direction；And curved guide part, curved guide part includes the elastic layer and extra play being stacked, elastic layer attaches to first surface, extra play offers gap, gap extends from surface of the extra play away from elastic layer to elastic layer, in folded state, surface of the extra play away from elastic layer is opened at gap.The program can guide flexible portion to be bent towards set direction, reduce the damage of foldable display screen, extend the life-span of foldable display screen.
Description
Technical field
The application is related to display technology field, more particularly to a kind of foldable display screen and display device.
Background technology
Foldable display screen can deploy when in use, to realize large-area displays, can fold when not in use, so as to
In storage and carrying.At present, foldable display screen is had been applied in various electronic installations, such as mobile phone, notebook computer, number
Word media player etc..
However, when folding display screen, because the overbending direction of display screen is not known, causing the flexible portion of display screen can
Situation about bending round about can occur.As depicted in figs. 1 and 2, Fig. 1 shows what the flexible portion of display screen was inwardly concaved
Schematic diagram is bent, Fig. 2 shows the outwardly bending schematic diagram of the flexible portion of display screen.
The bending direction of flexible portion shown in Fig. 1 is desired bending direction, but foldable display screen is being folded over
Situation as shown in Figure 2 is also possible that in journey, when bending as shown in Figure 2 occurs in the flexible portion of foldable display screen
During direction, flexible portion easily forms the dead folding with fold line, foldable display screen is caused to damage, greatly reducing to roll over
The service life of folded display screen.
The content of the invention
This application provides a kind of foldable display screen and display device, the flexible portion of foldable display screen can be guided
Bent to set direction, reduce the damage caused to foldable display screen, to extend the life-span of foldable display screen.
The first aspect of the application provides a kind of foldable display screen, with folded state and deployed condition, including：
Part I；
Part II, under the folded state, the Part I is relative with the Part II；
Flexible portion, the Part I connects via the flexible portion with the Part II, described foldable aobvious
Display screen is folded in the flexible part office, and the flexible portion has what is be oppositely arranged along the foldable display screen thickness direction
First surface and second surface；And
Curved guide part, the curved guide part includes the elastic layer and extra play being stacked, the elastic layer
The first surface is attached to, the extra play offers gap, and the gap is from the extra play away from the elastic layer
Surface extends to the elastic layer,
In the folded state, surface of the extra play away from the elastic layer is opened at the gap.
According to one embodiment of the application, the curved guide part is made of clear material.
According to one embodiment of the application, the extra play is made up of elastomeric material, the modulus of elasticity of the extra play
More than the modulus of elasticity of the elastic layer.
According to one embodiment of the application, the gap is from surface of the extra play away from the elastic layer along straight line
Direction extends towards the side close to the elastic layer.
According to one embodiment of the application, the extra play is run through in the gap.
According to one embodiment of the application, the quantity in the gap is multiple, the bearing of trend phase in multiple gaps
It is mutually parallel.
According to one embodiment of the application, under the deployed condition, the elastic layer has the maximum position of a thickness
Put,
Plane and the Part II is pointed to where parallel to the foldable display screen parallel to the Part I
Direction on,
The thickness of the elastic layer is gradually reduced to both sides respectively from the maximum position of the thickness,
And the elastic layer has attachment plane, the attachment plane is attached with the first surface.
According to one embodiment of the application, the elastic layer is symmetrical structure, and on maximum through the thickness
Symmetrical plane at position is symmetrical, and the symmetrical plane and the attachment plane are perpendicular.
It is arcwall face on surface of the elastic layer away from the flexible portion according to one embodiment of the application.
According to one embodiment of the application, through the straight line that the Part II is pointed to by the Part I, and
The curved guide part is intercepted perpendicular to any plane of plane where the foldable display screen and forms a section, described
In section, the sideline of side of the extra play away from the elastic layer is straight line, or,
The sideline of side of the extra play away from the elastic layer is camber line, and the camber line is to away from the elastic layer
Direction protrusion.
According to one embodiment of the application, the Part I, the Part II and the flexible portion are one
Body formula structure.
The second aspect of the application provides a kind of display device, including foldable display screen, the foldable display screen
For the foldable display screen described in any of the above-described.
The technical scheme that the application is provided can reach following beneficial effect：
This application provides a kind of foldable display screen, including curved guide part, curved guide part is set including stacking
The elastic layer and extra play put, the elastic layer of curved guide part attach to the first surface of flexible portion, and extra play is offered
Gap.After so setting, when folding it to foldable display screen applying power, due to offering gap on extra play, apply
Power surface of the extra play away from elastic layer is opened at gap, with this so that extra play resilience in comparison layer is more prone to curved
Song, and then realization guiding foldable display screen reduces or even avoided foldable display screen appearance curved towards set direction bending
The uncertain phenomenons of Qu Fangxiang, it is to avoid dead folding of the foldable display screen formation with fold line, reduction is made to foldable display screen
Into damage, alleviate foldable display screen generation fatigue rupture degree, extend the life-span of foldable display screen.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary, this can not be limited
Application.
Brief description of the drawings
Fig. 1 shows in the prior art, the bending schematic diagram that the flexible portion of display screen is inwardly concaved；
Fig. 2 shows in the prior art, the outwardly bending schematic diagram of the flexible portion of display screen；
Fig. 3 a are in the schematic diagram of deployed condition for the display device that the embodiment of the present application is provided；
Fig. 3 b are in the sectional drawing of deployed condition for the display device that the embodiment of the present application is provided；
Fig. 4 is in the schematic diagram of folded state for the display device that the embodiment of the present application is provided；
Fig. 5 is arranged on the schematic diagram of flexible portion one embodiment for the curved guide part that the embodiment of the present application is provided；
Fig. 6 attaches to the sectional drawing of foldable display screen for the curved guide part that the embodiment of the present application is provided；
The sectional drawing of the curved guide part that Fig. 6 a are provided for the embodiment of the present application in the deployed state；
The sectional drawing of the curved guide part that Fig. 7 is provided for the embodiment of the present application in a folded configuration；
When Fig. 8 a are provided with multiple for the curved guide part that the embodiment of the present application is provided, the signal of flexible portion is attached to
Figure；
When Fig. 8 b are provided with two for the curved guide part that the embodiment of the present application is provided, the signal of flexible portion is attached to
Figure；
Fig. 8 c extend to another for the curved guide part that the embodiment of the present application is provided along Y-direction from one end of flexible portion
The schematic diagram at end；
Fig. 9 a are in the disconnected of folded state for the curved guide part guiding foldable display screen that the embodiment of the present application is provided
Face figure；
Display surface is located at showing on the outside of protective housing after Fig. 9 b fold for the foldable display screen that the embodiment of the present application is provided
It is intended to；
The curved guide part that Figure 10 the embodiment of the present application is provided, elastic layer is made up with extra play of same elastomeric material
When sectional drawing；
In the curved guide part that Figure 11 provides for the embodiment of the present application, sideline of the extra play away from elastic layer side is arc
The schematic diagram of line；
In the curved guide part that Figure 12 provides for the embodiment of the present application, sideline of the extra play away from elastic layer side is straight
The schematic diagram of line；
The schematic diagram for the display device that Figure 13 provides for the embodiment of the present application.
Reference：
1- foldable display screens；
11- Part I；
12- Part II；
13- flexible portions；
131- first surfaces；
132- second surfaces；
2- protects shell；
3- curved guides part；
31- elastic layers；
311- is attached plane；
312- sidelines；
32- extra plays；
321- gaps；
100- display devices.
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the application
Example, and be used to together with specification to explain the principle of the application.
Embodiment
The application is described in further detail below by specific embodiment and with reference to accompanying drawing.
It should be noted that the noun of locality such as " on ", " under ", "left", "right" described by the embodiment of the present application is with accompanying drawing
Shown angle should not be construed as the restriction to the embodiment of the present application come what is be described.In addition, within a context, in addition it is also necessary to
Understand, when mentioning an element and being formed on another element " on " or " under ", it can not only be formed directly into
Another element " on " or " under ", can also be indirectly formed by intermediary element another element " on " or " under ".
Fig. 3 a are refer to, Fig. 3 a show that display device is in a kind of schematic diagram of embodiment of deployed condition.
This application provides a kind of foldable display screen 1 applied to display device, foldable display screen is arranged on protection
In shell 2, to avoid foldable display screen 1 from sustaining damage.The foldable display screen 1 has folded state and deployed condition,
Under deployed condition, foldable display screen 1 can be with display image, and in a folded configuration, foldable display screen 1 can fold to reduce
Occupancy spatially, is convenient for carrying.
Specifically, Fig. 3 b, Fig. 3 b are referred to and shows that display device is in the sectional drawing of deployed condition.Foldable display screen
1 includes Part I 11, Part II 12 and flexible portion 13, wherein, flexible portion 13 respectively with Part I 11 and the
Two parts 12 are connected, and three collectively constitutes the display portion of foldable display screen 1.
In the prior art, Part I 11 and Part II 12 are contacted with protection shell 2, and in foldable display screen
In 1 folding process, Part I 11 and Part II 12 will not be deformed upon with protecting shell 2 to move together, foldable
The folding of display screen 1 is mainly realized by the bending of flexible portion 13, because flexible portion 13 is not contacted with protection shell 2,
So that thus the bending direction of flexible portion 13 is relatively free, and cause the uncertainty of bending direction, for example, flexible portion 13
It is possible to protrude to the side away from protective housing 2, in addition, flexible portion 13 is also possible to the side close to protective housing 2
Protrusion.For the former, inner space is limited after being folded due to foldable display screen 1, and flexible portion 13 can be in extruding force
Effect is lower to produce dead folding, and damage is caused to foldable display screen 1, the display effect of foldable display screen 1 is directly affected.
" dead folding " mentioned here refers to, when display screen is bent, and the bent portion of display screen has an angle, and is formed
Face where one obvious fold line, bent portion is no longer a curved surface, but is two planes with an angle.
Fig. 4 is refer to, Fig. 4 shows that display device is in a kind of schematic diagram of embodiment of folded state.It is foldable aobvious
Display screen 1 is folded at flexible portion 13, in a folded configuration, and Part I 11 is relative with Part II 12.The He of Part I 11
Part II 12 can use the display screen of rigid structure, it would however also be possible to employ the flexible screen as flexible portion 13, the application
This is not construed as limiting.
Fig. 5 is refer to, Fig. 5 shows the schematic diagram that curved guide part is set in flexible portion.In order to ensure foldable
Display screen 1 is bent in folded position towards set direction, and the foldable display screen 1 that the application is provided also includes curved guide portion
Divide 3, curved guide part 3 can guide foldable display screen 1 only to bend in one direction.For example, in curved guide part 3
Under guiding, thus foldable display screen 1 can alleviate foldable display screen 1 and produces extremely only towards the-z directions protrusion in Fig. 5
The phenomenon of folding, extends the service life of foldable display screen 1.
Wherein ,-z directions are defined as perpendicular to the foldable display screen 1 of deployed condition and point to protection by flexible portion 13
The direction of housing 2.
Fig. 6 is refer to, Fig. 6 shows that curved guide part attaches to the sectional drawing of foldable display screen.Here it is fixed first
Justice, flexible portion 13 has the first surface 131 and second surface 132 that the thickness direction along foldable display screen 1 is oppositely arranged,
And be readily appreciated that, one of first surface 131 and second surface 132 are the display surface of flexible portion 13, and another one is soft
Property part 13 non-display face, be not that specific limit is made in display surface or non-display face to first surface 131 here.
Fig. 6 a are refer to, Fig. 6 a show sectional drawing of the curved guide part in deployed condition.
Curved guide part 3 includes the elastic layer 31 and extra play 32 that are stacked, and elastic layer 31 and extra play 32 can be with
It is fixedly connected, can also be integrally formed by Shooting Technique by way of bonding.Wherein, gap is offered on extra play 32
321, gap 321 extends from surface of the extra play 32 away from elastic layer 31 to elastic layer 31.It is understood that when foldable aobvious
When display screen 1 is in deployed condition, the direction of extension of the gap 321 along the place plane of foldable display screen 1 and flexible portion 13 and
The line of demarcation of Part I 11 is parallel, or parallel with the line of demarcation of flexible portion 13 and Part II 12.
Fig. 7 is refer to, Fig. 7 shows the sectional drawing of curved guide part in a folded configuration.
With reference to Fig. 6, Fig. 6 a and Fig. 7, in order to realize that guiding foldable display screen 1 is bent towards set direction, the application is carried
Go out, curved guide part 3 is attached to the side of flexible portion 13, specifically, the elastic layer 31 of curved guide part 3 is attached
In first surface 131.After so setting, when to the applying power of foldable display screen 1 so that foldable display screen 1 is folded, due to
Gap 321 is offered on extra play 32, folding force causes surface of the extra play 32 away from elastic layer 31 to be opened at gap 321,
With this so that extra play 32 resilience in comparison layer 31 is more prone to bending, and extra play 32 two ends towards curved guide part 3
The place side of elastic layer 31 is tilted, and then realizes that guiding foldable display screen 1 is bent towards set direction；On the other hand, elastic layer
31 attach to first surface 131, and when foldable display screen 1 is collapsible, elastic layer 31 is stretched stress, due to elastic layer 31
The elasticity of body, can make flexible portion 13 have certain crooked radian, even if first surface is a curved surface, can prevent flexibility
The overbending of part 13, the dead folding of appearance.For individually using technical scheme of the extra play as curved guide part, extra play is used
Bent in the flexible portion of guiding foldable display screen towards set direction, due to being provided with gap, extra play stress on extra play
Opened afterwards at gap so that flexible portion is easily bent towards set direction, however, just because of this point, flexible part partial volume
Easily occur overbending and produce dead folding.For the technology being individually attached at elastic layer on the flexible portion of foldable display screen
Scheme, the effect that elastic layer is bent without guiding flexible portion towards a direction, on the contrary, when flexing portions flex, by
It is flexible in elastic layer, hinder flexible portion further to bend.Compared to above-mentioned technical scheme, in this application, elasticity
After layer 31 is stacked with extra play 32, guiding flexible portion 13 can be played simultaneously and is bent to predetermined direction and prevents soft
Property part 13 produce the effect extremely rolled over, the risk of the sheet breaker of foldable display screen 1 is reduce further, relatively using two parts
Realize respectively for above two function, structure is simpler, manufacturability is more preferable.
In a kind of embodiment, Fig. 8 a are refer to, curved guide part 3 could be arranged to multiple, multiple curved guide parts 3
It can be arranged along the Y-direction in Fig. 5, and it is spaced between two neighboring curved guide part 3, wherein, Y-direction is：At place
In deployed condition the institute of foldable display screen 1 in the plane, the direction for pointing to Part II 12 with Part I 11 is perpendicular
Direction；Another embodiment, refer to Fig. 8 b, and curved guide part 3 can only be set to two, two curved guide parts 3
The two ends along Y-direction of flexible portion 13 can be separately positioned on；Certainly, in some other embodiment, Fig. 8 c are refer to, it is curved
Bent targeting part 3 can also be integral type structure, and the other end is extended to along Y-direction from one end of flexible portion 13.
Fig. 9 a are refer to, Fig. 9 a show that curved guide part guiding foldable display screen is in the section of folded state
Figure.From Fig. 9 a, the bending direction of flexible portion 13 is consistent with the bending direction of curved guide part 3.
Foldable display screen 1 has display surface and non-display face, and a kind of embodiment refer to Fig. 9 b, and first surface 131 is
A part for the display surface of foldable display screen 1, second surface 132 is the part in the non-display face of foldable display screen 1, this
When, elastic layer 31 attaches to first surface 131, under the guiding of curved guide part 3, and flexible portion 13 is convex to-z opposite direction
Go out, after folding, the relative position of Part I 11 and Part II 12 is back-to-back, that is to say, that when the folding of foldable display screen 1
Poststack, display surface is exposed outside；Another embodiment, refer to Fig. 4, and first surface 131 is non-display for foldable display screen 1
The part in face, second surface 132 is a part for the display surface of foldable display screen 1, and now, elastic layer 31 attaches to first
Surface 131, under the guiding of curved guide part 3, flexible portion 13 protrudes to-z directions, after folding, Part I 11 and the
The relative position of two parts 12 is face-to-face, and after foldable display screen 1 is folded, display surface is in protective housing 2.
Description more than, when first surface 131 is a part for display surface, if curved guide part 3 is attached
First surface 131 is connected to, then can block the parts of images presented on the display face.Therefore, it is contemplated that by curved guide part 3
Transparent component is set to, that is to say, that curved guide part 3 is made of clear material, with this so that curved guide part 3 is in tool
While having the function that guiding foldable display screen 1 is bent towards set direction, reduce shadow of the curved guide part 3 to display effect
Ring.
Certainly, the curved guide part 3 attached on non-display face can also be made of clear material, and be not limited only to only exist
Just using the curved guide part 3 of transparent material when on display surface.
In the embodiment shown in Fig. 6 a and Fig. 7, extra play 32 can use rigid, such as metal material or glass
Material etc..If extra play 32 is rigid layer, it is necessary to which gap 321 is headed straight for from the surface one of the remote elastic layer 31 of extra play 32
If to elastic layer 31, that is to say, that extra play 32 need to be disconnected by gap 321, and extra play 32 is divided into at least two parts, with
Ensure that the part separated in extra play 32 by gap 321 can realize folding condition at gap, it is ensured that curved guide part 3 can
Guide effect is played with the bending to foldable display screen 1, while rigid layer is difficult to produce compressive deformation, hence in so that bending is led
Will not be towards the place lateral bend of extra play 32 to part 3.
Selectively, extra play 32 can also be made up of elastomeric material, and in order to be further ensured that curved guide part 3 exists
Bending direction with determination when guiding the bending of foldable display screen 1, can set the modulus of elasticity of extra play 32 to be more than elasticity
The modulus of elasticity of layer 31, the extra play 32 with larger modulus of elasticity is compared for the elastic layer 31 with relatively low modulus of elasticity,
In the presence of identical active force, the deformation that extra play 32 occurs is smaller.By this mechanism, for elastic layer 31,
Extra play 32 is difficult to be compressed, by the collective effect of extra play 32 and elastic layer 31, can play prevention curved guide part 3
The effect deformed towards the opposite direction with the bending direction in Fig. 7, has thereby further ensured that foldable display screen 1 towards both
Fixed direction bending, further extends the service life of foldable display screen 1.
Please continue to refer to Fig. 6 a and Fig. 7, the gap 321 being opened on extra play 32 is rectilinear slot, that is to say, that gap
321 linearly extend from surface of the extra play 32 away from elastic layer 31 towards the side close to elastic layer 31, along linear extension
Gap 321 can more facilitate extra play 32 to be opened in the presence of folding force.Interchangeable, gap 321 can also be from attached
Plus surface of the layer 32 away from elastic layer 31 extends along direction of a curve towards the side close to elastic layer 31, the shape of curve can be round
Arc or S-shaped etc..
The quantity in gap 321 can be one or more.Generally, in order to avoid foldable display screen 1 is in folded position
Generation is extremely discounted as generally more excellent scheme is that a plurality of gap 321 is set on extra play 32, so, in the effect of folding force
Under, extra play 32 can open at every gap 321, make it that the power that curved guide part 3 is subject to can be with relatively uniform
Each and the corresponding position in gap 321 of elastic layer 31 are distributed in, to reduce the stress concentration phenomenon of folding force.Gap
321 quantity can also select to set according to the actual requirements.
For linear gap 321, when setting a plurality of gap 321, the bearing of trend in a plurality of gap 321 is mutually put down
OK, specifically, a plurality of gap 321 is parallel to each other in the bearing of trend of the place plane of foldable display screen 1, and a plurality of gap 321
It is parallel to each other along the direction of the thickness direction extension parallel to foldable display screen 1., wherein it is desired to which explanation, mentioned above
Foldable display screen 1 be in deployed condition.
In addition, for the extra play 32 being made of elastomeric material, a kind of embodiment, gap 321 can only extend
Default distance, and do not run through extra play 32.Extra play 32 is run through in another embodiment, gap 321, that is to say, that gap 321
Elastic layer 31 is extended to from extra play 32, now, extra play 32 has multiple separate parts, multiple separate portions
Divide and make it that the deformation after the stress of extra play 32 is more flexible.Two kinds of embodiments are compared, and the deflection that the latter compares the former is bigger,
The bending of foldable display screen 1 is more flexible.
Figure 10 is refer to, Figure 10 shows elastic layer and the integrally formed sectional view of extra play.
The extra play 32 being made up of elastomeric material can use same elastomeric material with elastic layer 31, and both one into
Type, gap 321 is opened on extra play 32 and not through elastic layer 31, now, can still realize guiding flexible portion 13 to
Predetermined direction bends and prevents flexible portion 13 from producing dead folding.
In addition, in the embodiment shown in Fig. 6 a and Fig. 7, under the deployed condition of foldable display screen 1, elastic layer 31 has
There is the maximum position D of a thickness, second is being pointed to parallel to the place plane of foldable display screen 1 and parallel to Part I 11
On the direction (X-direction in Fig. 6) for dividing 12, the thickness of elastic layer 31 is gradually reduced to both sides respectively from the maximum position D of thickness.
In other words, the maximum position D of thickness is located at the middle position of elastic layer 31, in the both sides of middle position, elastic layer 31
Thickness be gradually reduced.For flexural deformation, the bending stress generally born at centre position is maximum, can also
Say, it is larger compared to the deflection deformation of fringe region in the deflection deformation of middle position, easily there is the situation of overbending, because
This, sets the maximum position D of thickness to be located at the middle position of elastic layer 31, can improve the force-bearing situation of elastic layer 31, from
And improve the force-bearing situation of the position D corresponding section maximum with thickness of flexible portion 13, prevent that overbending from occurring in flexible portion,
Meanwhile, from middle position to the direction that both sides extend on, the thickness of elastic layer is gradually reduced so that corresponding with elastic layer flexible
Part forms smooth surface in bending.Bend, will can be set at the maximum position D of thickness for the ease of foldable display screen 1
Put at the maximum position of the bending stress of flexible portion 13, prevent flexible portion 13 from dead folding occur with this.
It is preferred that elastic layer 31 has attachment plane 311, when elastic layer 31 attaches to first surface 131, the attachment is put down
Face 311 is attached with first surface 131, and attachment plane 311 is that plane is easy to be attached with first surface 131, and can improve elasticity
The bond strength of layer 31 and first surface 131, it is to avoid come off.
Further, as shown in Figure 6 a, elastic layer 31 can also be set to symmetrical structure, elastic layer 31 is on through thickness
Symmetrical plane at maximum position D is symmetrical, and the symmetrical plane is vertical with attachment plane 311.So, elastic layer 31 is in thickness
The both sides spent at maximum position D have the deflection of identical variation tendency so that foldable display screen 1 respectively with this
The corresponding part in both sides equally has the bending stress of Similar trend, that is to say, that foldable display screen 1 and the both sides pair
The bending stress that should be partly subject to is also symmetrical, so that the flexible portion formation symmetric bending of foldable display screen 1
Shape..
It is readily appreciated that, elastic layer 31 could be arranged to a variety of different structures, a kind of embodiment, and elastic layer 31 is away from soft
Property part 13 surface can be arcwall face, for the elastic layer 31 with arcwall face, in the presence of folding force, entirely
Arcwall face stress is relatively uniform, i.e., whole arcwall face can bear tensile force jointly.Certainly, elastic layer 31 is away from flexible portion
131 surface is it can also be provided that plane.
Further, through the straight line for pointing to Part II 12 under deployed condition by Part I 11, and perpendicular to can roll over
Any plane of folded display screen 1 intercepts curved guide part 3 and forms a section, and in this section, extra play 32 is away from elastic layer
The sideline 312 of 31 side be camber line, and the camber line to away from elastic layer 31 direction protrude.Figure 11 is refer to, Figure 11 is shown
Sideline of the extra play away from elastic layer side is the schematic diagram of camber line.The pars intermedia of extra play 32 with arc sideline 312
The thickness divided is larger, makes it have stronger Incoercibility.
It is selectable, through deployed condition under point to the straight line of Part II 12 by Part I 11, and perpendicular to can
Any plane of the place plane of folding display screen 1 intercepts curved guide part 3 and forms a section, in this section, extra play 32
The sideline 312 of side away from elastic layer 31 can also be straight line.Figure 12 is refer to, Figure 12 shows extra play away from elastic layer
The sideline of side is the schematic diagram of straight line.Using the design, when foldable display screen 1 is in deployed condition, curved guide portion
Divide 3 to can be used for support flexible portion 13, flexible portion 13 is kept smooth.
In the application, Part I 11, Part II 12 and the flexible portion 13 of foldable display screen 1 could be arranged to one
Body formula structure, i.e. Part I 11 and Part II 12 can use with flexible portion identical structure, and three can be with one
Body is processed to be formed.
As shown in figure 13,, should present invention also provides a kind of display device 100 based on the foldable display screen 1 in foregoing
Display device 100 includes the foldable display screen 1 in any of the above-described embodiment.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (12)
1. a kind of foldable display screen, with folded state and deployed condition, it is characterised in that including：
Part I；
Part II, under the folded state, the Part I is relative with the Part II；
Flexible portion, the Part I connects via the flexible portion with the Part II, the foldable display screen
Folded in the flexible part office, the flexible portion has first be oppositely arranged along the foldable display screen thickness direction
Surface and second surface；And
Curved guide part, the curved guide part includes the elastic layer and extra play being stacked, the elastic layer attachment
In the first surface, the extra play offers gap, and the gap is from surface of the extra play away from the elastic layer
Extend to the elastic layer,
In the folded state, surface of the extra play away from the elastic layer is opened at the gap.
2. foldable display screen according to claim 1, it is characterised in that the curved guide part is by transparent material system
Into.
3. foldable display screen according to claim 1, it is characterised in that the extra play is made up of elastomeric material, institute
The modulus of elasticity for stating extra play is more than the modulus of elasticity of the elastic layer.
4. foldable display screen according to claim 1, it is characterised in that the gap is from the extra play away from described
The surface of elastic layer linearly extends towards the side close to the elastic layer.
5. foldable display screen according to claim 4, it is characterised in that the extra play is run through in the gap.
6. foldable display screen according to claim 4, it is characterised in that the quantity in the gap is multiple, Duo Gesuo
The bearing of trend for stating gap is parallel to each other.
7. foldable display screen according to claim 1, it is characterised in that under the deployed condition, the elastic layer
With the position that a thickness is maximum,
Plane and the side of the Part II is pointed to parallel to the Part I where parallel to the foldable display screen
Upwards,
The thickness of the elastic layer is gradually reduced to both sides respectively from the maximum position of the thickness,
And the elastic layer has attachment plane, the attachment plane is attached with the first surface.
8. foldable display screen according to claim 7, it is characterised in that the elastic layer is symmetrical structure, and on
Symmetrical through the symmetrical plane at the maximum position of the thickness, the symmetrical plane and the attachment plane are perpendicular.
9. foldable display screen according to claim 7, it is characterised in that in the elastic layer away from the flexible portion
Surface be arcwall face.
10. foldable display screen according to claim 9, it is characterised in that described through being pointed to by the Part I
The straight line of Part II, and intercept the curved guide portion perpendicular to any plane of plane where the foldable display screen
Divide and form a section, in the section, the sideline of side of the extra play away from the elastic layer is straight line, or,
The sideline of side of the extra play away from the elastic layer be camber line, and the camber line to away from the elastic layer side
To protrusion.
11. the foldable display screen according to claim any one of 1-10, it is characterised in that the Part I, described
Part II and the flexible portion are integral type structure.
12. a kind of display device, including foldable display screen, it is characterised in that the foldable display screen is claim 1-
Foldable display screen any one of 11.
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| CN201710644408.6A CN107301821B (en) | 2017-07-31 | 2017-07-31 | Foldable display screen and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710644408.6A CN107301821B (en) | 2017-07-31 | 2017-07-31 | Foldable display screen and display device |
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| CN107301821A true CN107301821A (en) | 2017-10-27 |
| CN107301821B CN107301821B (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710644408.6A Active CN107301821B (en) | 2017-07-31 | 2017-07-31 | Foldable display screen and display device |
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