CN109686842A - A kind of stretchable flexible display panels and display device - Google Patents
A kind of stretchable flexible display panels and display device Download PDFInfo
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- CN109686842A CN109686842A CN201811598141.2A CN201811598141A CN109686842A CN 109686842 A CN109686842 A CN 109686842A CN 201811598141 A CN201811598141 A CN 201811598141A CN 109686842 A CN109686842 A CN 109686842A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The embodiment of the present application provides a kind of stretchable flexible display panels and display device, by the flexible substrate to setting in flexible display panels with dual extension-compression modulus, to realize good tensility.The stretchable flexible display panels, including viewing area, the viewing area include that multiple first sub- viewing areas, the first sub- viewing area is formed in the first flexible substrate；Multiple drawing zones, the drawing zone are formed in the second flexible substrate；Wherein, first flexible substrate has the first elastic modulus E 1；Second flexible substrate has the second elastic modulus E 2, and the two meets following relationship: 2 the first elastic modulus E of < 1 of the second elastic modulus E.
Description
[technical field]
This application involves field of display technology more particularly to a kind of stretchable flexible display panels and display device.
[background technique]
With flourishing for flat panel display technology, organic light-emitting display device (Organic Light Emitting
Display, abbreviation OLED) since it is with good characteristics such as self-luminous, high brightness, wide viewing angle, fast reactions, using increasingly
Extensively.
Over the past two years, " flexible ", " foldable " product concept were constantly popularized shows in product design in OLED.
With the appearance of flexible display screen, so that the design concept of display product is further expanded, for drawing for flexible display screen
Function is stretched, the subdivision technical field of the more hot spot of flexible OLED display one is increasingly becoming.For flexible display screen how
Both it can guarantee normal display function, while also can satisfy the requirement of tensility energy, and become current flexible display screen field
One important topic.
[application content]
In view of this, the embodiment of the present application provides a kind of stretchable flexible display panels and display device, by right
Setting has the flexible substrate of dual extension-compression modulus in flexible display panels, to realize good tensility.
On the one hand, the embodiment of the present application provides a kind of stretchable flexible display panels, including viewing area,
The viewing area includes,
Multiple first sub- viewing areas, the first sub- viewing area are formed in the first flexible substrate；
Multiple drawing zones, the drawing zone are formed in the second flexible substrate；
Wherein, first flexible substrate has the first elastic modulus E 1；Second flexible substrate has the second elasticity
Modulus E2, the two meet following relationship:
Second elastic modulus E, 2 the first elastic modulus E of < 1.
Optionally, second elastic modulus E 2 is less than 1GPa；First elastic modulus E 1 is less than or equal to 3GPa.
Optionally, first flexible substrate is by including that the first flexible high molecular material is made；The secondary substrate by
It is made including the second flexible high molecular material；Wherein, first flexible high molecular material includes rubber, low pressure polyethylene or height
One of pressure polyethylene is a variety of；Second flexible high molecular material includes dimethione, artificial rubber, polyamides Asia
One of amine, polyethers phthalimide or polyethylene terephthalate are a variety of.
Optionally, multiple drawing zones, which are staggered, defines multiple first areas in matrix arrangements；It is multiple described
First sub- viewing area is set in the first area.
Optionally, there is at least one connected region between a region；Two the first sub- viewing areas of arbitrary neighborhood pass through institute
It states connected region and carries out electrical connection.
Optionally, the display panel further includes a plurality of signal lead, and the signal lead is set to the connected region, real
The electrical connection of two the first sub- viewing areas of existing arbitrary neighborhood.
Optionally, the first area has quadrilateral structure；In a first direction, the side length of the first area is 10
μm~1000 μm；In said first direction, the width of the drawing zone is 1 μm~30 μm.
It optionally, include multiple pixel units in the described first sub- viewing area；In the drawing zone without the pixel unit
Setting.
Optionally, the described first sub- viewing area includes drive array layer, and it is soft that the drive array layer is formed in described first
On property substrate；It include the second organic buffer layer in the drawing zone, second organic buffer layer covers second flexible liner
Bottom；The thickness of second organic buffer layer is substantially equal with the thickness of the drive array layer.
Optionally, the drive array layer further includes the first organic buffer layer；Wherein, first organic buffer layer and institute
The second organic buffer layer is stated to be formed by same film pattern.
Optionally, have between first flexible substrate and second flexible substrate of arbitrary neighborhood setting and have a common boundary
Place；It is arranged on the intersection, first flexible substrate without second organic buffer layer.
Optionally, first flexible substrate and second flexible substrate are by including same flexibility high molecular material system
At；Wherein, it is handled by ultraviolet lighting, so that the elasticity modulus of first flexible substrate is greater than second flexible substrate
Elasticity modulus.
Optionally, the flexible high molecular material includes dimethione, artificial rubber, polyimides, polyethers phthalein Asia
One of amine or polyethylene terephthalate are a variety of；Wherein, the ultraviolet lighting, which is handled, includes,
One flexible substrate is provided；
Using the first area of flexible substrate described in light shield mask plate shielding, the second area of the exposure flexible substrate；
By flexible substrate described in ultraviolet light, first flexible liner is formed by the first area of the flexible substrate
Bottom；Second flexible substrate is formed by the second area of the flexible substrate.
Optionally, each first sub- viewing area includes flexible package layer；The flexible envelope of multiple first viewing areas
Dress layer is mutually indepedent structure；In the drawing zone, the no flexible package layer setting.
On the other hand, the embodiment of the present application provides a kind of stretchable display device, and the display device includes above-mentioned aobvious
Show panel.
A kind of stretchable flexible display panels and display device provided by the embodiments of the present application, by viewing area and stretching
The flexible substrate of area's setting dual extension-compression modulus, wherein the elasticity modulus of drawing zone is less than the elasticity modulus of viewing area, so that drawing
Stretching area has better toughness, stretching or bending operation easy to accomplish compared to viewing area.For viewing area, due to it
Including multiple pixels for display, therefore need to guarantee certain mechanical strength, to prevent from being stretched or being bent operation
When, cause the damage to the electricity device in viewing area.Such as in drive array thin film transistor (TFT), metal signal cabling, have
Machine luminescent device etc., because display panel deformation caused by stretched operation and bring are damaged.In addition, in this application will display
The signal lead between multiple pixels is connected in area, by the connected region between viewing area, connected region is included in viewing area,
Its mechanical strength compared to stretch region, can protect in this way signal lead will not because of stretched operation and bring broken string wind
Danger.
[Detailed description of the invention]
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of display panel provided by the embodiment of the present application；
Fig. 2 be in Fig. 1 display panel along the schematic cross-section of xx ' dotted line；
Fig. 3 is the partial enlargement diagram of display panel in Fig. 1；
Fig. 4 is the treatment process steps flow diagram of flexible substrate in the another embodiment of the application；
Fig. 5 is treatment process steps schematic diagram in Fig. 4；
Fig. 6 is the structural schematic diagram of display device provided by the embodiment of the present application.
[specific embodiment]
In order to better understand the technical solution of the application, the embodiment of the present application is retouched in detail with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Base
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall in the protection scope of this application.
The term used in the embodiment of the present application is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The application.In the embodiment of the present application and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
In the description of this specification, it is to be understood that described in the claim of this application and embodiment " substantially ",
The words such as " approximation ", " about ", " about ", " substantially " " generally ", refer within the scope of reasonable technological operation or tolerance model
In enclosing, can generally it accept, rather than an exact value.
It will be appreciated that though in the embodiment of the present application flexible liner may be described using term first, second, third, etc.
Bottom, but these flexible substrates should not necessarily be limited by these terms.These terms are only used to for flexible substrate being distinguished from each other out.For example,
In the case where not departing from the embodiment of the present application range, the first flexible substrate can also be referred to as the second flexible substrate, similarly, the
Two flexible substrates can also be referred to as the first flexible substrate.
Applicant in this case is by careful further investigation, for the problems of the prior art, as shown in fig. 1~fig. 5, wherein
Fig. 1 is the structural schematic diagram of display panel provided by the embodiment of the present application；Fig. 2 is display panel cutting along xx ' dotted line in Fig. 1
Face schematic diagram；Fig. 3 is the partial enlargement diagram of display panel in Fig. 1；Fig. 4 is flexible substrate in the another embodiment of the application
Treatment process steps flow chart；Fig. 5 is treatment process steps schematic diagram in Fig. 4；Fig. 6 is display provided by the embodiment of the present application
The structural schematic diagram of device.The embodiment of the present application provides a kind of stretchable flexible display panels and display device, by right
Setting has the flexible substrate of dual extension-compression modulus in flexible display panels, to realize good tensility.
Specifically, the stretchable flexible display panels, including viewing area, the viewing area include that multiple first sons are aobvious
Show that area, the first sub- viewing area are formed in the first flexible substrate；Multiple drawing zones, the drawing zone are formed in the second flexibility
On substrate；Wherein, first flexible substrate has the first elastic modulus E 1；Second flexible substrate has the second springform
E2 is measured, the two meets following relationship: 2 the first elastic modulus E of < 1 of the second elastic modulus E.
It is specific that the embodiment of the present application provides a kind of stretchable display panel 1 as shown in Figures 1 to 3, specifically, display
Panel 1 can carry out cross directional stretch with X along a first direction, can also carry out longitudinal stretching along second direction Y.It can certainly
X or second direction Y is folded, is bent or carried out bending in scroll binding along a first direction.
In order to realize stretched operation, multiple drawing zones 12 are arranged in display panel 1 provided in the application in the display area
With multiple sub- viewing areas 11.Wherein, drawing zone 12 may include the multiple first drawing zone 12a being disposed to extend along first direction X
The second Y extended drawing zone 12b in a second direction.As shown in Figure 1, the first drawing zone 12a being laterally arranged and longitudinal direction
The second drawing zone 12b being arranged is staggered, and the viewing area segmentation of display panel 1 is defined multiple first area 1a, such as Fig. 1
Middle dashed rectangle outlines part.In one specific embodiment of the application, multiple first area 1a are in matrix arrangements, are such as schemed
Shown in 1, multiple first area 1a between each other in parallel, and/or equally spacedly, are arranged and are arranged along first direction X；Multiple
One region 1a between each other in parallel, and/or equally spacedly, Y arrangement and arrangement in a second direction.More to formation rule
The matrix structure of rule, when carrying out stretched operation, since multiple first area 1a are to be in be uniformly distributed, each first area
Perhaps stress is all more approximate so that the stress of extraneous pulling force or inside is to disperse more to the pulling force that 1a is received
Uniformly.
Shown in continuing to refer to figure 1, the differentiation that is stretched of the viewing area of the display panel 1 is segmented into the multiple first sub- viewing areas 11,
Every sub- viewing area 11 is correspondingly arranged in corresponding first area 1a.It is more due in one specific embodiment of the application
A first area 1a is in matrix arrangements, therefore multiple sub- viewing areas 11 are also in matrix arrangements.
In the embodiment of the present application, in order to promote the tensile property of display panel 1, pass through differentiation and display panel 1 is set
The elasticity modulus of upper different zones realizes display so that drawing zone when receiving stretched operation, primarily serves tensile deformation effect
The tensility of panel 1.
To achieve the goals above, continue to refer to figure 1~Fig. 3 shown in, in this application, by display panel 1
Different elasticity modulus is arranged in the flexible substrate of drawing zone 12 and the first sub- 11 region of viewing area.So that carrying out stretching behaviour
When making because the flexibility in the small region of elasticity modulus is more preferable, can this preferential stretching, deformation occurs.Specifically, such as Fig. 2 institute
Show, in the first flexible substrate 111 that the first area 1a where the first sub- viewing area 11 is correspondingly arranged, there is the first springform
Measure E1.In this application, in order to guarantee the tensile property of display panel 1, the first flexible substrate for viewing area is also needs
With good bending and tensile property.In a specific embodiment, the first flexible substrate 111, the first springform
Amount E1 is needed to be less than equal to 3GPa, and thereby may be ensured that can freely realize bending or stretched operation.For the first flexible liner
It for the material at bottom 111, both needs to guarantee good flexibility, while being also required to guarantee the formation in drive array layer T1
In technical process, the stable chemical performance of the first flexible substrate 111.Therefore the first flexible substrate 111 should select flexible macromolecule material
Material is made.For this purpose, the first flexible substrate 111 is by the first flexible macromolecule in the application one more specific embodiment
Material is made, and may include one of rubber, low pressure polyethylene or high pressure polyethylene or a variety of specifically.
With continued reference to shown in Fig. 2, in the second flexible substrate 121 that the region where drawing zone 12 is correspondingly arranged, have
Second elastic modulus E 2.In this application, in order to guarantee the tensile property of display panel 1, meanwhile, in order to realize when being stretched
When operation, this preferential stretching of the meeting of drawing zone 12 without display function, deformation occurs.In the embodiment of the present application, need by
The elasticity modulus of second flexible substrate 121 is set smaller than the elasticity modulus of the first flexible substrate 111, it may be assumed that the second elasticity modulus
The first elastic modulus E of E2 < 1.Inventor is needed by further investigation discovery by the elasticity modulus needs of the second flexible substrate 121
Less than 1GPa, good stretched operation just may be implemented.For the material of the second flexible substrate 121, both need to guarantee excellent
Different flexibility, while being also required to guarantee in the preparation process of entire display panel 1, the second flexible substrate 121
Stable chemical performance.Therefore the second flexible substrate 121 should select flexible high molecular material to be made.For this purpose, the application one compared with
For in specific embodiment, the second flexible substrate 121 is made of the second flexible high molecular material, specifically, may include
One of dimethione, artificial rubber, polyimides, polyethers phthalimide or polyethylene terephthalate are a variety of.
In addition, present invention also provides again in order to be further simplified the formation process of the flexible substrate of flexibility differentiation
One embodiment specifically as indicated at 4 can be by forming the flexible liner with dual extension-compression modulus in same flexible substrate
Bottom.So as to simplify because two kinds of different flexible substrates need process costs brought by splicing, while can also be promoted soft
Property substrate production yields.
As shown in Fig. 4~Fig. 5, by same flexible substrate, including flexible high molecular material, specifically may include,
One of dimethione, artificial rubber, polyimides, polyethers phthalimide or polyethylene terephthalate are a variety of,
It is handled by ultraviolet lighting, so that the elasticity modulus of the first flexible substrate 111 is greater than the elasticity modulus of the second flexible substrate 121.
Specific treatment process can be with are as follows:
S1: a flexible substrate is provided；
S2: using light shield mask plate M, and wherein light shield mask plate M includes the first opening H and blocked area S, wherein the first opening
H is correspondingly arranged in the second area 121a of flexible substrate, exposes partially flexible substrate；Blocked area S is correspondingly arranged in flexible liner
The first area 111a at bottom,
S3: by ultraviolet light flexible substrate, the first flexible substrate is formed by the first area 111a of flexible substrate
111；Second flexible substrate 121 is formed by the second area 121a of flexible substrate, to realize the elasticity of the first flexible substrate 111
Modulus is greater than the elasticity modulus of the second flexible substrate 121.
It is different with the intensity of ultraviolet light according to the material difference of flexible substrate, it can choose the duration of ultraviolet light
It is not quite similar, can be irradiated from a few minutes and a few hours are all possible.It is not specifically limited in this application.
In embodiment of above, the soft of elastic modulus difference alienation is formed by carrying out treatment with ultraviolet light to same flexible substrate
Property substrate.It is relatively simple easy for the angle of technique, save process costs.
Continue to refer to figure 1~Fig. 3 shown in, in order to realize that display panel 1 can be stretched freely, in the embodiment of the present application
By the way that multiple drawing zones 12 being staggered are arranged in the display area.But to be further ensured that drawing zone 12 can both allow display surface
Plate 1 realizes stretch function, while also guaranteeing not influence the display function of viewing area, prevents human eye from perceiving multiple first sons aobvious
Show that the case where separation display occurs in area 11.In this event, in one specific embodiment of the application, viewing area sub- for first is gone
First area 1a where 11, can have quadrilateral structure, such as rectangle or square structure.Wherein, in order to enable control
The tensility of whole display panel can be not too big with internal stress, in a first direction on X, by the side length a1 of first area 1a
It is set as 10 μm~1000 μm；Correspondingly, setting 1 μm~30 μ for the width b1 of the second drawing zone 12b in a first direction on X
M, wherein more preferred, the width b1 of the second drawing zone 12b is set as 1 μm~10 μm.Certainly, more have at the application one
In the embodiment of body, for further including connected region C1 in drawing zone 12, in order to guarantee that connected region C1 can allow on display panel 1
Signal wire there is enough arrangement spaces, therefore the width b1 maximum of the second drawing zone 12b corresponding to the C1 of connected region can be with
It is set as 30 μm.In addition, in the present embodiment, for the second drawing zone 12b of the corresponding arrangement of X along a first direction, the
The length of two direction Y, the second drawing zone 12b can be approximately equal in length or are slightly less than with first area 1a.So that the
Two drawing zone 12b form a long and narrow opening.It can so guarantee only to be able to achieve stretching, it will not be excessive because of opening width
And it influences the multiple first sub- viewing areas 11 and the phenomenon that display separation occurs.
Continue to refer to figure 1~Fig. 3 shown in, it should be noted that be nothing in drawing zone 12 in the application embodiment
Pixel unit PX setting, and be correspondingly arranged in the first sub- viewing area 11 and be corresponding with multiple pixel unit PX, wherein each picture
Plain unit PX corresponding includes pixel-driving circuit and luminescence unit OL1.Wherein, between multiple pixel unit PX in the display area
It is electrically connected to each other, for example the multiple pixel unit PX being located at a line are from same root gate line to the more of same a line
A pixel unit PX provides gate drive signal.It is specific as shown in FIG. 1 to 3, between two first area 1a of arbitrary neighborhood
With connected region C1, the signal lead 113 in two adjacent the first sub- viewing areas 11 in pixel unit PX passes through winding mode
It is arranged in the C1 of connected region, to realize the electrical connection of the pixel unit PX in the two neighboring first sub- viewing area 11.In this Shen
Please be in a specific embodiment, display panel 1 includes signal lead, gate line such as extended along first direction X
113 and data signal leads 115 Y extended in a second direction.For same root gate line 113, pass through
Multiple connected region C1 provide gate drive signal in such a way that coiling is arranged, to the multiple pixel unit PX being located at a line；It is right
For same root data signal leads 115, through multiple connected region C1 in a manner of coiling setting, to positioned at same row
Multiple pixel unit PX provide data drive signal.Wherein, it should be noted that connected region C1 is to be set to the first sub- viewing area
In 11.The signal lead between multiple pixel units will be connected in viewing area in this application, pass through the connection between viewing area
Area, connected region are included in viewing area, and for mechanical strength compared to region is stretched, can protect signal lead in this way will not
The risk because stretched operation and bring break.
In order to further realize the protection to drawing zone 12, prevent because multiple stretched operation makes the second flexible substrate
12 are lost, and in the specific embodiment of the application, are provided with second by covering in the second flexible substrate 12 and have
Machine buffer layer 122.Since the second organic buffer layer 122 has larger thickness, can protect the second flexible substrate 121 will not be because drawing
It stretches or bends operation and damage.Specifically, the multiple first sub- viewing areas 11 in the display area include drive array layer T1,
Pixel-driving circuit, metal signal cabling (such as gate line 113, data-signal have been primarily formed in drive array layer T1
Lead, LED control signal line, reference potential signal wire etc.), play insulating effect inorganic insulation layer and other planarizations it is left
Right organic buffer layer.It wherein, include the in the drive array layer T1 of the first sub- viewing area 11 in the application embodiment
One organic buffer layer 112, is made of high-molecular organic material, covers the grid signal lead 113 in drive array layer T1.?
It, can be by the first organic buffer layer 112 and drawing zone in the first sub- viewing area 11 in one specific embodiment of the application
The second organic buffer layer 122 in 12 is formed by same technique, i.e., is formed by same organic high molecular layer pattern layers, from
And the processing step for independently forming the second organic buffer layer 122 is saved, and so as to realize that processing step is simple and easy, cost
It is low.
In addition, in order to reduce the offset between the first sub- viewing area 11 and drawing zone 12, it is specific real at the application one
It applies in mode, can set substantially equal for the thickness of the second organic buffer layer 122 and the thickness of drive array layer T1.From
And offset between the two is reduced, to reduce edge stress between the two, guarantee when carrying out stretched operation, external tensile force
It is uniformly dispersed with the internal stress in display panel.
In addition, due to needing to carry out stretched operation, due to being provided in the second flexible substrate 121 with larger thickness
Second organic buffer layer 122, thickness can achieve 30 μm or more.When carrying out stretched operation, may bring certain interior
Portion's stress.Generated to alleviate corresponding stress, in one specific embodiment of the application, as shown in Fig. 2, can pass through by
It is organic with second in intersection G1 between the first flexible substrate 11 and the second flexible substrate 12 of arbitrary neighborhood setting
Buffer layer 122 removes.To reduce edge stress, so that the integrally stretching performance boost of display panel.
With continued reference to shown in Fig. 2, in one specific embodiment of the application, in order to further enhance display panel
Tensile property prevents flexible package structure and bring stress due to display panel.In this application, in the display area more
A first sub- viewing area 11 carries out individual packages, and is arranged in drawing zone 12 without encapsulated layer, thus maximum likelihood
The internal stress for reducing display panel 1, enhances its tensility.Specifically, each first sub- viewing area 11 includes covering hair
The flexible package layer 114 of light unit OL1 and drive array layer T1.Wherein, flexible package layer 114 includes the first inorganic encapsulated layer
114a, the first organic encapsulation layer 114b and the second inorganic encapsulated layer 114c, " sandwich " encapsulating structure that three is constituted coat
The influence to luminescence unit OL1 is caused so that reaching prevents steam and oxygen from entering in display panel in the first sub- viewing area 11.
Since flexible package layer 114 includes multiple inorganic encapsulated layers (being formed by fine and close oxide), biggish internal stress can be generated.
Therefore the setting in drawing zone 12 without flexible package layer 114.
The embodiment of the present application also provides a kind of display devices, as shown in fig. 6, Fig. 6 is provided by the embodiment of the present application
The structural schematic diagram of display device, the display device include above-mentioned display panel 1.Wherein, the specific structure of display panel 1 has been
It is described in detail in the above-described embodiments, details are not described herein again.Certainly, display device shown in fig. 6 is only to illustrate to say
Bright, which can be any with aobvious such as mobile phone, tablet computer, laptop, electric paper book or television set
Show the electronic equipment of function.
The display device as provided by the embodiment of the present application includes above-mentioned display panel, by viewing area and drawing zone
The flexible substrate of dual extension-compression modulus is set, wherein the elasticity modulus of drawing zone is less than the elasticity modulus of viewing area, so that stretching
Area has better toughness, stretching or bending operation easy to accomplish compared to viewing area.For viewing area, due to its packet
Multiple pixels for display are included, therefore need to guarantee certain mechanical strength, to prevent when being stretched or bending operation,
Cause the damage to the electricity device in viewing area.Such as to thin film transistor (TFT), the metal signal cabling, You Jifa in drive array
Optical device etc., because display panel deformation caused by stretched operation and bring are damaged.In addition, in this application will be in viewing area
The signal lead between multiple pixels is connected, by the connected region between viewing area, connected region is included in viewing area, machine
Tool intensity compared to stretch region, can protect in this way signal lead will not because of stretched operation and bring broken string risk.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (15)
1. a kind of stretchable flexible display panels, which is characterized in that including viewing area,
The viewing area includes,
Multiple first sub- viewing areas, the first sub- viewing area are formed in the first flexible substrate；
Multiple drawing zones, the drawing zone are formed in the second flexible substrate；
Wherein, first flexible substrate has the first elastic modulus E 1；Second flexible substrate has the second elasticity modulus
E2, the two meet following relationship:
Second elastic modulus E, 2 the first elastic modulus E of < 1.
2. display panel according to claim 1, which is characterized in that second elastic modulus E 2 is less than 1GPa；It is described
First elastic modulus E 1 is less than or equal to 3GPa.
3. display panel according to claim 2, which is characterized in that first flexible substrate is by including first flexible high
Molecular material is made；The secondary substrate is by including that the second flexible high molecular material is made；
Wherein, first flexible high molecular material includes one of rubber, low pressure polyethylene or high pressure polyethylene or a variety of；
Second flexible high molecular material includes dimethione, artificial rubber, polyimides, polyethers phthalimide or poly- to benzene two
One of formic acid second diester is a variety of.
4. display panel according to claim 2, which is characterized in that multiple drawing zones be staggered define it is multiple
In the first area of matrix arrangements；
Multiple first sub- viewing areas are set in the first area.
5. display panel according to claim 4, which is characterized in that have between two first areas of arbitrary neighborhood
There is at least one connected region；
Two the first sub- viewing areas of arbitrary neighborhood electrical connection is carried out by the connected region.
6. according to right want 5 described in display panel, which is characterized in that the display panel further includes a plurality of signal lead, institute
It states signal lead and is set to the connected region, realize the electrical connection of two the first sub- viewing areas of arbitrary neighborhood.
7. display panel according to claim 4, which is characterized in that the first area has quadrilateral structure；
In a first direction, the side length of the first area is 10 μm~1000 μm；
In said first direction, the width of the drawing zone is 1 μm~30 μm.
8. display panel according to claim 7, which is characterized in that in the described first sub- viewing area include multiple pixel lists
Member；
It is arranged in the drawing zone without the pixel unit.
9. display panel according to claim 2, which is characterized in that the first sub- viewing area includes drive array layer,
The drive array layer is formed in first flexible substrate；
It include the second organic buffer layer in the drawing zone, second organic buffer layer covers second flexible substrate；
The thickness of second organic buffer layer is substantially equal with the thickness of the drive array layer.
10. display panel according to claim 9, which is characterized in that the drive array layer further includes first organic slow
Rush layer；
Wherein, first organic buffer layer is formed with second organic buffer layer by same film pattern.
11. display panel according to claim 10, which is characterized in that first flexible substrate of arbitrary neighborhood setting
There is intersection between second flexible substrate；
It is arranged on the intersection, first flexible substrate without second organic buffer layer.
12. display panel according to claim 2, which is characterized in that first flexible substrate and second flexibility
Substrate is by including that same flexibility high molecular material is made；
Wherein, it is handled by ultraviolet lighting, so that the elasticity modulus of first flexible substrate is greater than second flexible substrate
Elasticity modulus.
13. display panel according to claim 12, which is characterized in that the flexible high molecular material includes poly- diformazan silicon
One of oxygen alkane, artificial rubber, polyimides, polyethers phthalimide or polyethylene terephthalate are a variety of；
Wherein, the ultraviolet lighting, which is handled, includes,
One flexible substrate is provided；
Using the first area of flexible substrate described in light shield mask plate shielding, the second area of the exposure flexible substrate；
By flexible substrate described in ultraviolet light, first flexible substrate is formed by the first area of the flexible substrate；
Second flexible substrate is formed by the second area of the flexible substrate.
14. any display panel according to claim 1~13, which is characterized in that each first sub- viewing area packet
Include flexible package layer；The flexible package layer of multiple first viewing areas is mutually indepedent structure；
In the drawing zone, the no flexible package layer setting.
15. a kind of stretchable display device, which is characterized in that the display device includes described in any one of claim 1~14
Display panel.
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