CN107578707A - Flexible display panel and display device - Google Patents
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- CN107578707A CN107578707A CN201710989534.5A CN201710989534A CN107578707A CN 107578707 A CN107578707 A CN 107578707A CN 201710989534 A CN201710989534 A CN 201710989534A CN 107578707 A CN107578707 A CN 107578707A
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- 238000005452 bending Methods 0.000 claims abstract description 92
- 239000010410 layer Substances 0.000 claims description 251
- 239000010408 film Substances 0.000 claims description 207
- 239000010409 thin film Substances 0.000 claims description 14
- 238000005538 encapsulation Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000004020 luminiscence type Methods 0.000 claims description 6
- 239000012044 organic layer Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 18
- 230000005489 elastic deformation Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The application relates to a flexible display panel and a display device. The display panel comprises a first film layer, a second film layer, a first area and a second area; in the first region, the modulus of elasticity of the first film layer is greater than the modulus of elasticity of the second film layer, and in the second region, the modulus of elasticity of the first film layer is less than the modulus of elasticity of the second film layer. When the flexible display panel is bent, the positions of the first film layer and the second film layer in the display panel are different, and the deformation of the first film layer and the second film layer during bending is different, so that the first film layer and the second film layer which adopt different elastic moduli correspondingly can ensure that the bending stress received by the first film layer and the second film layer is relatively balanced, the bending characteristic of the flexible display panel is improved, and the flexible display panel can bear smaller bending radius.
Description
Technical field
The application is related to display technology field, more particularly to a kind of flexible display panels and display device.
Background technology
With the development of science and technology, portable set has become the new development trend of modern society, and it is being altered in steps
The life of the mankind, major transformation is brought for science and technology.In particular, flexible display panels are so that its is foldable, be convenient for carrying, apply
The advantages such as scope is wide are more and more favored by user, and give the brand-new viewing experience of user.
In correlation technique, flexible display panels include thin film stack structure when flexible display panels are bent, each layer
For film because the distance apart from neutral surface is different, the bending stress each born is different, and when flexible display panels have it is multiple
During overbending direction, the situation for the bending stress that each film layer is born is then more complicated, because bending stress difference may cause respectively
Film layer produces different degrees of bending, and so as to produce the phenomenon that cracking is peeled off between film layer, this just needs to provide a kind of new soft
Property display panel, with lifted the panel bending characteristic, to bear smaller crooked process radius.
The content of the invention
This application provides a kind of flexible display panels and display device, the bending characteristic of the display panel can be lifted.
This application provides a kind of flexible display panels, including：
First film layer and the second film layer；
The flexible display panels include first area and second area；
In the first area, the modulus of elasticity of first film layer is more than the modulus of elasticity of second film layer,
In the second area, the modulus of elasticity of first film layer is less than the modulus of elasticity of second film layer.
Optionally, modulus of elasticity of second film layer in the first area is less than second film layer described the
Modulus of elasticity in two regions.
Optionally, the first area and the second area are the strip region extended in a first direction, and described
One region and the second area are arranged alternately in second direction, and the first direction and the second direction are intersected.
Optionally, the modulus of elasticity of each first film layer in each first area is equal, each firstth area
The modulus of elasticity of each second film layer in domain is equal.
Optionally, the modulus of elasticity of first film layer in each first area is equal in each second area
The modulus of elasticity of second film layer, the modulus of elasticity of first film layer in each second area are equal to each described first
The modulus of elasticity of second film layer in region.
Optionally, the flexible display panels have bending region, and the bending region includes multiple first areas
With multiple second areas,
The bending region has the bending axle extended in a first direction, in this second direction, first film layer
It is gradually reduced respectively to both sides from the bending axle with the difference of the modulus of elasticity of second film layer.
Optionally, modulus of elasticity of first film layer in each second area from it is described bending axle respectively to both sides
It is gradually reduced.
Optionally, the flexible display panels have multiple bending regions.
Optionally, the quantity of the first area and the second area is multiple, and is boxed area, first
On direction and second direction, the first area and the second area are arranged alternately, the first direction and described second
Direction intersects.
Optionally, the flexible display panels have the first bending state, under first bending state, the flexibility
Display panel is bent around first straight line, and is protruded towards the side of first film layer, and it is recessed to offer first in first film layer
First film layer is run through in groove, direction of first groove along the first straight line；
And/or
The flexible display panels have the second bending state, under second bending state, the Flexible Displays face
Plate is bent around second straight line, and is protruded towards the side of second film layer, and the second groove is offered in second film layer, described
Second film layer is run through in direction of second groove along the second straight line.
Optionally, including：
Flexible base board；
The thin film transistor (TFT) array being arranged on the flexible base board, the thin film transistor (TFT) array include gate metal
Layer, Source and drain metal level, and the planarization layer of the covering Source and drain metal level；
The pixel defining layer being arranged on the planarization layer, the pixel defining layer have multiple openings, the opening
It is interior that there is luminescence unit.
Optionally, the flexible base board includes the first flexible base board and the second flexible base board, first film layer and described
Second film layer is respectively first flexible base board and second flexible base board.
Optionally, first film layer and second film layer are respectively the flexible base board, the planarization layer and institute
State in pixel defining layer it is any both.
Optionally, in addition to：The thin-film encapsulation layer of the luminescence unit is covered, the thin-film encapsulation layer includes at least one layer
Encapsulate organic layer；
First film layer and second film layer are respectively that the flexible base board, the planarization layer, the pixel are determined
In adopted layer and encapsulation organic layer it is any both.
The second aspect of the application additionally provides a kind of display device, including the Flexible Displays face described in any of the above-described
Plate.
The technical scheme that the application provides can reach following beneficial effect：
This application provides a kind of flexible display panels, the display panel includes the first film layer and the second film layer, wherein, the
One film layer and the second film layer are layers of elastomeric film, and in first area, set the modulus of elasticity of the first film layer to be more than second
The modulus of elasticity of film layer, in second area, the modulus of elasticity of the first film layer is set to be less than the modulus of elasticity of the second film layer.So
After setting, when flexible display panels are bent, the first film layer and the second film layer location in aobvious panel are different, and both are curved
Deflection when bent is different, therefore, corresponding the first film layer and the second film layer using dual extension-compression modulus can cause both by
The bending stress relative equilibrium arrived, to improve the bending characteristic of flexible display panels, smaller radius bend can be born.
It should be appreciated that the general description and following detailed description of the above are only exemplary, this can not be limited
Application.
Brief description of the drawings
Fig. 1 is the partial sectional view for the display panel that the embodiment of the present application provides；
Fig. 2 is the schematic diagram that the display panel that the embodiment of the present application provides is provided with first area and second area；
Fig. 3 is a kind of schematic diagram of the bending state for the flexible display panels that the embodiment of the present application provides；
Fig. 4 is the schematic diagram of another bending state for the flexible display panels that the embodiment of the present application provides；
Fig. 5 is to set one kind of first area and second area real in the flexible display panels that the embodiment of the present application provides
Apply the schematic diagram of example；
Fig. 6 is the springform of the first film layer and the second film layer in the first area that the embodiment of the present application provides and second area
The schematic diagram I of amount；
Fig. 7 is the springform of the first film layer and the second film layer in the first area that the embodiment of the present application provides and second area
The schematic diagram II of amount；
Fig. 8 is the springform of the first film layer and the second film layer in the first area that the embodiment of the present application provides and second area
The schematic diagram III of amount；
Fig. 9 is the another kind that first area and second area are set in the flexible display panels that the embodiment of the present application provides
The schematic diagram of embodiment；
Figure 10 is in the flexible display panels that the embodiment of the present application provides, and the signal of the first groove is set in the first film layer
Figure；
Figure 11 is in the flexible display panels that the embodiment of the present application provides, and the signal of the second groove is set in the second film layer
Figure；
Figure 12 is the schematic diagram of flexible display panels internal structure in the flexible display panels that the embodiment of the present application provides；
Figure 13 is that flexible base board includes the first flexible base board and second in the flexible display panels that the embodiment of the present application provides
The schematic diagram of flexible base board；
Figure 14 is the schematic diagram for the display device that the embodiment of the present application provides.
Reference：
2- flexible display panels；
The film layers of 202- first；
The grooves of 202a- first；
The film layers of 204- second；
The grooves of 204a- second；
206- first areas；
208- second areas；
210- neutral lines；
21- flexible base boards；
The flexible base boards of 21a- first；
The flexible base boards of 21b- second；
22- gate metal layers；
23- Source and drain metal levels；
24- planarization layers；
25- pixel defining layers；
26- thin-film encapsulation layers；
4- display devices.
Accompanying drawing herein is merged in specification and forms 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, 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. 1 is refer to, Fig. 1 shows the partial sectional view of display panel.
This application provides a kind of flexible display panels 2, the display panel includes the first film layer 202 and the second film layer 204,
First film layer 202 and the parallel arrangement of the second film layer 204, for example, the first film layer 202 and the second film layer 204 can be flexible base board,
Insulating barrier or planarization layer etc..
First film layer 202 and the second film layer 204 are layers of elastomeric film, when flexible display panels 2 from deployed condition change to
During folded state, the first film layer 202 and the second film layer 204 can produce elastic deformation, conversely, working as flexible display panels 2 from folding
When overlapping state is changed to deployed condition, the first film layer 202 and the second film layer 204 recover deformation.
Fig. 2 is refer to, Fig. 2 shows the schematic diagram that first area and second area are set in flexible display panels.
Flexible display panels 2 include first area 206 and second area 208, first area 206 and second area 208 that
This is not overlapped, and first area 206 and second area 208 can be respectively set to one, can also be respectively set to multiple, this Shen
Please this is not construed as limiting.
In order to lift the bending characteristic of flexible display panels 2, so that the display panel 2 can bear smaller bending half
Footpath, the application proposes, in first area 206, sets the modulus of elasticity of the first film layer 202 to be more than the elasticity of the second film layer 202
Modulus, also, in second area 208, set the modulus of elasticity of the first film layer 202 to be less than the modulus of elasticity of the second film layer 204.
Description more than, when flexible display panels 2 are bent, because the first film layer 202 and the second film layer 204 are showing
The location of show in panel 2 different, both deflections when display panel 2 bend are different, therefore, corresponding using difference
The first film layer 202 and the second film layer 204 of modulus of elasticity can cause the bending stress relative equilibrium that both are subject to, to improve flexibility
The bending characteristic of display panel, can bear smaller radius bend.
As shown in figure 3, Fig. 3 shows a kind of schematic diagram of bending state of flexible display panels.
Flexible display panels 2 can have multiple bending regions, in the embodiment shown in fig. 3, flexible display panels 2
Bending mode includes two kinds of situations of interior curved (display surface is relative after bending) and excurvation (after bending display surface back to), for example, interior curved
Occur in first area 206, excurvation occurs in second area 208, because the first film layer 202 and the second film layer 204 are in display surface
It is spaced on the thickness direction of plate 2, therefore flexible display panels 2 are in bending, the first film layer 202 and the second film layer 204
Elastic deformation amount is unequal, and in first area 206, the elastic deformation amount of the first film layer 202 is less than the elasticity of the second film layer 204
Deflection, in second area 208, the elastic deformation amount of the first film layer 202 is more than the elastic deformation amount of the second film layer 204.
If using the first film layer 202 and the second film layer 204 of same elastic modulus, because deflection is different, then two
The unbalanced stress weighing apparatus that film layer is respectively subjected to, this can reduce the bending performance of display panel 2.Therefore, the side provided according to the application
Case, in first area 206, the modulus of elasticity of the first film layer 202 is set to be more than the modulus of elasticity of the second film layer 204, second
In region 208, the modulus of elasticity of the first film layer 202 is set to be less than the modulus of elasticity of the second film layer 204, that is to say, that during bending
The modulus of elasticity of the first relatively small film layer 202 of deflection can set somewhat larger, and deflection is relatively when bending
The modulus of elasticity of the second big film layer 204 can set it is smaller, so, the first film layer 202 and the second film layer during bending
204 stress born can then tend to be identical, and strain also tends to identical, and such film layer 204 of first film layer 202 and second can
Bent repeatedly in the range of being allowed with each comfortable natural resiliency deflection, so as to lift the bending characteristic of display panel 2, together
When, according to parameters such as the bending angles of flexible display panels 2, the corresponding elasticity that first film layer 202 and the second film layer 204 are set
Modulus, it is possible to achieve the display panel 2 can bear smaller crooked process radius.
Fig. 4 is refer to, Fig. 4 shows the schematic diagram of another bending state of flexible display panels.
As shown in Figure 4, according to each diverse location of bending place, correspondingly, the first film layer 202 and the second film layer 204 exist
Deflection at diverse location is different, for example, by taking the second film layer 204 as an example, the deflection of first area 206 is more than second
The deflection in region 208, based on this factor, the application further sets elasticity of second film layer 202 in first area 206
Modulus is less than modulus of elasticity of second film layer 204 in second area 208, so, for second in different distortion region
For film layer 204, according to the difference of deflection, the second film layer 204 can be arranged to multiple portions with dual extension-compression modulus
Point, to meet the deflection demand of diverse location, the harmony of bending stress suffered by the second film layer 204 is further improved, and then
Improve the bending characteristic of display panel 2.
Refer to, the first film layer 202 can also use with the identical plan of establishment of the second film layer 204, to cause first
Film layer 202 is at diverse location, each portion for being arranged to have dual extension-compression modulus according to the difference of the deflection of display panel 2
Point, the bending characteristic of raising display panel 2.
It refer to Fig. 5, Fig. 5 shows showing for the first area of flexible display panels and a kind of embodiment of second area
It is intended to.
In the embodiment shown in fig. 5, first area 206 and second area 208 can be disposed as (figure in the first direction
X directions in 5) extension strip region, first direction can be flexible display panels 2 laterally or longitudinally, here by strip
The length direction in region is defined as first direction, and the width of strip region is defined as second direction (the y directions in Fig. 5),
First direction and second direction are perpendicular, and first area 206 and second area 208 are arranged alternately in a second direction.Strip knot
Separation mode of the first area 206 and second area 208 of structure on display panel 2 is relatively easy, is easy to implement the first film layer
202 and second film layer 204 setting.Need exist for explanation, first direction be not limited only to second direction it is vertical, can be with
In the angle for being less than 180 ° more than 0 °, also, first direction is also not limited to flexible display panels 2 laterally or longitudinally, may be used also
To be other directions with the laterally or longitudinally inclined angle, in addition, the shape of first area 206 and second area 208
It is not limited only to bar shaped.
For first area 206 and second area 208 are divided into the embodiment of some, it can be pointed to each
The modulus of elasticity of the first film layer 202 in individual first area 206 and the modulus of elasticity of the second film layer 204 carry out selection setting.One
Embodiment is planted, as shown in fig. 6, the modulus of elasticity of each first film layer 202 in each first area 206 is all provided with to be set to equal, general
The modulus of elasticity of each second film layer 206 in each first area 206 is all provided with being set to equal.That is, be spaced apart each first
The modulus of elasticity of same film layer in region 206 is equal.Identical filling pattern represents that film layer has identical elastic in Fig. 6
Modulus.
Another embodiment, as shown in fig. 7, the modulus of elasticity of the first film layer 202 in first area 206 is equal to the secondth area
The modulus of elasticity of the second film layer 204 in domain 208, the modulus of elasticity of the first film layer 202 in second area 208 are equal to the firstth area
The modulus of elasticity of the second film layer 204 in domain 206.
In the various embodiments described above, the modulus of elasticity of the modulus of elasticity of the first film layer 202 and the second film layer 204 can basis
The bending situation of display panel 2 is flexibly set, to adapt to requirement of the display panel 2 in the deflection of different bending places, so as to
So that the first film layer 202 and the second film layer 204 when display panel 2 is bent with more excellent bending characteristic.It is identical in Fig. 7
Filling pattern represent film layer there is identical modulus of elasticity.
Particularly point out, because the middle position for bending region is bigger compared to the bending degree at other positions, therefore,
Elastic deformation amount's difference of middle position, the first film layer 202 and the second film layer 204 is larger, accordingly, it is considered to this factor,
In another optional embodiment, as shown in figure 8, can also be set as follows：Specifically, flexible display panels 2 are with curved
Folding area domain, bending region include multiple first areas 206 and multiple second areas 208, first area 206 and second area 206
It is arranged alternately, bending region has the bending axle O of (the x directions in Fig. 8) extension in the first direction, and bending region surrounds when bending
Bending axle O is bent, in second direction (the y directions in Fig. 8), the modulus of elasticity of the first film layer 202 and the second film layer 204
Difference is gradually reduced to both sides respectively from bending axle O.After so setting, the modulus of elasticity of the first film layer 202 and the second film layer 204
Difference variation tendency with bend region deflection variation tendency it is identical so that the deformation feelings of display panel 2
Condition can match with the setting of the modulus of elasticity of two film layers, so as to lift the bending characteristic of display panel 2.
In the implementation shown in Fig. 8, elasticity of first film layer 202 in each second area 208 can also be further set
Modulus is gradually reduced to both sides respectively from bending axle O.Because the bending degree for bending region is different, the area near bending axle O
Domain bending deformation quantity is relatively large, and the part bending deformation quantity away from bending axle O is relatively small, therefore, sets the first film layer 202
Modulus of elasticity in each second area 208 successively decreases successively to match with the bending situation of display panel 2, aobvious so as to be lifted
Show the bending characteristic of panel 2.
It is readily appreciated that, in some other embodiment, the bullet of the modulus of elasticity of the first film layer 202 and the second film layer 204
Property modulus can also have other set-up modes, be not limited only to the mode described in various embodiments above.
It is readily appreciated that, flexible display panels 2 there can be multiple bending regions, and bending region is more, then Flexible Displays
The crooked place of panel 2 is more, and accordingly, the volume after flexible display panels 2 fold is smaller, then more portable.
Fig. 9 is refer to, Fig. 9 shows the first area 206 of flexible display panels and the another kind reality of second area 208
Apply the schematic diagram of example.
In the embodiment shown in fig. 9, first direction is laterally (the x directions in Fig. 9) second direction (the y side in Fig. 9
To) for longitudinal direction, the quantity of first area 206 and second area 208 is multiple, and is boxed area, in a first direction and
In second direction, first area 206 and second area 208 are arranged alternately, and first direction intersects with second direction.In the program
Compared to the scheme shown in Fig. 5, first area 206 and second area 208 are divided into more parts, accordingly, respectively
Positioned at the bullet of the modulus of elasticity and the second film layer 204 of each first area 206 and the first film layer 202 of each second area 208
Property modulus can more flexibly be set according to the bending situation of display panel 2, and the bending of display panel 2 is further lifted with this
Characteristic.Identical filling pattern represents identical region in Fig. 9.
Figure 10 is refer to, Figure 10 shows the schematic diagram that groove is set in film layer.
, can also be in the first film layer 202 and the second film layer 204 in order to further lift the bending characteristic of display panel 2
At least one on set groove, a kind of embodiment, flexible display panels 2 have the first bending state, in the first bending state
Under, flexible display panels 2 are bent around first straight line, and are protruded towards the side of the first film layer 202, now：
L10For the length of neutral line 210, L10=π R1；
L1For the length of the first film layer 202, L1=π (R1+H1/2)；
△L1=(L1-L10)/L1=H1/(H1+2R1)；
σ1=E × △ L1,
Wherein, σ1For stress, E is the modulus of elasticity of the first film layer 202, R1For crooked process radius, H1For the first film layer 202
Thickness.
Make σ1Reduce, △ L can be made by setting the first groove 202a in the first film layer 2021Reduce, so as to
Make L1-L10Reduce, to reduce and alleviate the bending stress that the first film layer 202 is subject to so that the first film layer 202 and the second film layer
204 strain reaches unanimity, to reach the purpose of the bending characteristic of lifting display panel 2.
Further, the first groove 202a that n A/F can also be set to be L ', makes n × L '=π H1/ 2, compensation the
The length of one film layer 202 elongation, so that σ1Further reduce and go to zero, so as to alleviate the stress of the first film layer 202.
Another embodiment, as shown in figure 11, flexible display panels 2 have the second bending state, in the second bending state
Under, flexible display panels 2 are bent around second straight line, and are protruded towards the side of the second film layer 204, now：
L20For the length of neutral surface 210, L20=π R2；
L2For the length of the second film layer 204, L2=π (R2+H2/2)；
△L2=(L2-L20)/L2=H2/(2R2+H2)；
σ2=E × △ L2；
Wherein, σ2For stress, E is the modulus of elasticity of the second film layer 204, R2For crooked process radius, H2For the second film layer 204
Thickness.
Make σ2Reduce, △ L can be made by setting the second groove 204a in the second film layer 2042Reduce, so as to
Make L2-L20Reduce, to reduce and alleviate the bending stress that the second film layer 204 is subject to so that the first film layer 202 and the second film layer
204 strain reaches unanimity, to reach the purpose of the bending characteristic of lifting display panel 2.
Further, the second groove 204a that n A/F can also be set to be L ', makes n × L '=π H2/ 2, compensation the
The length of two film layers 204 elongation, so that σ2Further reduce and go to zero, so as to alleviate the stress of the second film layer 204.
In another embodiment, the first groove can also be opened up respectively in the first film layer 202 and the second film layer 204 respectively
202a and the second groove 204a, so, when the different parts of flexible panel 2 are respectively at the first bending state and second curved
During folding state, the first groove 202a can play a part of reducing and alleviate the first film layer 202, and the second groove 204a can be played
Reduce and alleviate the effect of the second film layer 204.
Figure 12 is refer to, Figure 12 shows the schematic diagram of the internal structure of flexible display panels.
Flexible display panels 2 include flexible base board 21 and the thin film transistor (TFT) array being arranged on flexible base board 21, thin
Film transistor array includes gate metal layer 22, Source and drain metal level 23, and the planarization layer 24 of covering Source and drain metal level 23, puts down
Pixel defining layer 25 is provided with smoothization layer 24, pixel defining layer 25 has multiple openings, has luminescence unit in opening.
A kind of embodiment, Figure 13 is refer to, flexible base board 21 could be arranged to double-decker, and it includes the first flexible base board
21a and the second flexible base board 21b, wherein, the first film layer 202 and the second film layer 204 are respectively the first flexible base board 21a and second
Flexible base board 21b.First flexible base board 21a and the second flexible base board 21b are separated by barrier layer, and the first flexible base board
21a and the second flexible base board 21b can select identical material, for example, polyamide.
Another embodiment, the first film layer 202 and the second film layer 204 can also be flexible base board 21, the and of planarization layer 24
In pixel defining layer 25 it is any both.
In above-mentioned two embodiment, in display panel 2, by flexible base board 21, planarization layer 24 and pixel defining layer 25
In it is any both be arranged to the first film layer 202 and the second film layer 204, and pass through and the first film layer 202 and the second film layer 204 be set
Modulus of elasticity, can lift the bending characteristic of display panel 2, realize that display panel 2 has smaller radius bend.
Further, as shown in figure 13, display panel 2 also includes the thin-film encapsulation layer 26 of covering luminescence unit, thin-film package
Layer 26 includes at least one layer of encapsulation organic layer, and the first film layer 202 and the second film layer 204 are respectively flexible base board 21, planarization layer
24th, in pixel defining layer 25 and encapsulation organic layer it is any both, to lift the bending characteristic of display panel 2.
Figure 14 is refer to, Figure 14 shows a kind of schematic diagram of embodiment of display device.
Present invention also provides a kind of display device 4, the display device includes the Flexible Displays in any of the above-described embodiment
Panel 2.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, 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 (15)
- A kind of 1. flexible display panels, it is characterised in that including：First film layer and the second film layer；The flexible display panels include first area and second area；In the first area, the modulus of elasticity of first film layer is more than the modulus of elasticity of second film layer, described In second area, the modulus of elasticity of first film layer is less than the modulus of elasticity of second film layer.
- 2. flexible display panels according to claim 1, it is characterised in that second film layer is in the first area Modulus of elasticity be less than modulus of elasticity of second film layer in the second area.
- 3. flexible display panels according to claim 2, it is characterised in that the first area and the second area are equal For the strip region extended in a first direction, the first area and the second area are arranged alternately in second direction, described First direction and the second direction are intersected.
- 4. flexible display panels according to claim 3, it is characterised in that each described first in each first area The modulus of elasticity of film layer is equal, and the modulus of elasticity of each second film layer in each first area is equal.
- 5. flexible display panels according to claim 4, it is characterised in that first film in each first area The modulus of elasticity of layer is equal to the modulus of elasticity of second film layer in each second area, the institute in each second area The modulus of elasticity for stating the first film layer is equal to the modulus of elasticity of second film layer in each first area.
- 6. flexible display panels according to claim 3, it is characterised in that the flexible display panels have bent area Domain, the bending region include multiple first areas and multiple second areas,The bending region has the bending axle extended in a first direction, in this second direction, first film layer and institute The difference for stating the modulus of elasticity of the second film layer is gradually reduced to both sides respectively from the bending axle.
- 7. flexible display panels according to claim 6, it is characterised in that first film layer is in each second area Interior modulus of elasticity is gradually reduced to both sides respectively from the bending axle.
- 8. the flexible display panels according to claim 6 or 7, it is characterised in that the flexible display panels have multiple Bend region.
- 9. flexible display panels according to claim 2, it is characterised in that the first area and the second area Quantity is multiple, and is boxed area, in the first direction and a second direction, the first area and the second area It is arranged alternately, the first direction intersects with the second direction.
- 10. flexible display panels according to claim 1, it is characterised in that the flexible display panels are curved with first Folding state, under first bending state, the flexible display panels are bent around first straight line, and towards first film layer Side protrudes, and offers the first groove in first film layer, institute is run through in direction of first groove along the first straight line State the first film layer；And/orThe flexible display panels have the second bending state, under second bending state, the flexible display panels around Second straight line is bent, and is protruded towards the side of second film layer, offers the second groove in second film layer, and described second Second film layer is run through in direction of the groove along the second straight line.
- 11. flexible display panels according to claim 1, it is characterised in that including：Flexible base board；The thin film transistor (TFT) array being arranged on the flexible base board, the thin film transistor (TFT) array include gate metal layer, source Leak metal level, and the planarization layer of the covering Source and drain metal level；The pixel defining layer being arranged on the planarization layer, the pixel defining layer have multiple openings, had in the opening There is luminescence unit.
- 12. flexible display panels according to claim 11, it is characterised in that the flexible base board includes the first flexible base Plate and the second flexible base board, first film layer and second film layer are respectively first flexible base board and described second soft Property substrate.
- 13. flexible display panels according to claim 11, it is characterised in thatFirst film layer and second film layer are respectively the flexible base board, the planarization layer and the pixel defining layer In it is any both.
- 14. flexible display panels according to claim 11, it is characterised in thatAlso include：The thin-film encapsulation layer of the luminescence unit is covered, the thin-film encapsulation layer includes at least one layer of encapsulation organic layer；First film layer and second film layer are respectively the flexible base board, the planarization layer, the pixel defining layer With in encapsulation organic layer it is any both.
- 15. a kind of display device, it is characterised in that including the flexible display panels as described in claim any one of 1-14.
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| CN201710989534.5A CN107578707B (en) | 2017-10-20 | 2017-10-20 | Flexible display panel and display device |
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| CN201710989534.5A CN107578707B (en) | 2017-10-20 | 2017-10-20 | Flexible display panel and display device |
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