CN106328003B - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
- Publication number
- CN106328003B CN106328003B CN201610815271.1A CN201610815271A CN106328003B CN 106328003 B CN106328003 B CN 106328003B CN 201610815271 A CN201610815271 A CN 201610815271A CN 106328003 B CN106328003 B CN 106328003B
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- flexible
- display panel
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- display
- cover sheet
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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
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention provides a kind of display panel and display device.The display panel includes flexible display substrates and cover sheet; cover sheet is covered on flexible display substrates; cover sheet includes flexible region; flexible region correspondence is positioned at the fold domain of flexible display substrates; flexible region is less than 100MPa using modulus of elasticity, and tensile strength is more than 50MPa material.The display panel is in bending, its neutral line (stress being subject in BENDING PROCESS is 0 film layer) can be into flexible display substrates device layer (i.e. light emitting device layer) move, make neutral line closer to the device layer in flexible display substrates, so that the stress that the device layer in flexible display substrates is subject to reduces, then reduce strain of the device layer after effect is stressed in flexible display substrates, and then the display panel is recovered formation state within a short period of time upon bending, injury of the display panel to wherein each film layer in BENDING PROCESS finally has been reduced or avoided.
Description
Technical field
The present invention relates to display technology field, in particular it relates to a kind of display panel and display device.
Background technology
With the development of flexible display screen, expectation more and more higher of the people to foldable display product.
Current Flexible Displays module generally includes HC (hard coating) protective layer, touch-screen, polaroid, display screen etc.
Film layer structure, HC protective layers are typically using the larger material of modulus of elasticity, for being protected to folding display screen.At present
The integral thickness of Flexible Displays module is thicker, and because the modulus of elasticity of HC protective layers is larger, when Flexible Displays module is bent,
Easily make the device layer for being located away from display module of neutral line (stress being subject in BENDING PROCESS is 0 film layer), after
And the bending stress for causing the device layer (such as light emitting device layer) of whole display module to be subject to is larger, after display module integrally bending
It is difficult to recover formation state in a short time, easily the device layer of display module is caused to damage.
The content of the invention
There is provided a kind of display panel and display device for above-mentioned technical problem present in prior art by the present invention.Should
Display panel is in bending, and its neutral line (stress being subject in BENDING PROCESS is 0 film layer) can be to flexible display substrates
In device layer (i.e. light emitting device layer) it is mobile, make neutral line closer to the device layer in flexible display substrates, so that flexible
The stress that device layer in display base plate is subject to reduces, and then makes the device layer in flexible display substrates after effect is stressed
Strain reduce, and then the display panel is recovered formation state within a short period of time upon bending, finally reduce or keep away
Injury of the display panel to wherein each film layer in BENDING PROCESS is exempted from.
The present invention provides a kind of display panel, including：Flexible display substrates and cover sheet, the cover sheet are covered
On the flexible display substrates, the cover sheet includes flexible region, and the flexible region correspondence is located at the Flexible Displays
The fold domain of substrate, the flexible region is less than 100MPa using modulus of elasticity, and tensile strength is more than 50MPa material.
Preferably, the cover sheet also includes non-flexible region, and the non-flexible region correspondence is located at described flexible aobvious
Show the includes non-collapsible region of substrate；
The flexible region and the interface of the non-flexible region are curved surface.
Preferably, the flexible region and the interface of the non-flexible region are cambered surface, the radius of curvature of the cambered surface
It is identical or different.
Preferably, the flexible region and the interface of the non-flexible region are formed by more than two plain splices,
Angle between two planes of arbitrary neighborhood is more than 0 DEG C and less than 180 DEG C.
Preferably, the flexible region is using methacrylate copolymer and the polymer of nano SiO 2 particle.
Preferably, the non-flexible region includes the base material of PET or polyimide material, in addition to is arranged on described
Silica coating or titanium nitride coating on base material.
Preferably, the cover sheet is arranged on the light emission side of the flexible display substrates.
Preferably, the flexible display substrates include flexible display screen and flexible polaroid, and the flexible polaroid is set
In the light emission side of the flexible display screen；
The cover sheet is located at the side of the remote flexible display screen of the flexible polaroid.
Preferably, the flexible display substrates also include flexible touch layer, and the flexible touch layer is arranged on the flexibility
The light emission side of display screen；
The position of the flexible touch layer and the flexible polaroid can be exchanged；The cover sheet is located at mutual superimposition
The side of the remote flexible display screen of flexible polaroid and the flexible touch layer.
The present invention also provides a kind of display device, including above-mentioned display panel.
Beneficial effects of the present invention：Display panel provided by the present invention, by using the flexible region of cover sheet
Modulus of elasticity is less than 100MPa, and tensile strength is more than 50MPa material, can make display panel in bending, its neutral line
The device layer (i.e. light emitting device layer) of (stress being subject in BENDING PROCESS is 0 film layer) into flexible display substrates is moved
It is dynamic, make neutral line closer to the device layer in flexible display substrates so that the device layer in flexible display substrates be subject to should
Power reduces, and then reduces strain of the device layer after effect is stressed in flexible display substrates, and then make the display surface
Plate can recover formation state within a short period of time upon bending, display panel finally be reduced or avoided right in BENDING PROCESS
The wherein injury of each film layer.
Display device provided by the present invention, by using above-mentioned display panel, improves the bendability of the display device
Can, so that the display device realizes preferably bending display.
Brief description of the drawings
Fig. 1 is the structure sectional view of display panel in the embodiment of the present invention 1；
Fig. 2 is the structure sectional view of cover sheet in Fig. 1；
Fig. 3 is the structure sectional view of display panel in the embodiment of the present invention 2.
Description of reference numerals therein：
1. flexible display substrates；11. flexible display screen；12. flexible polaroid；13. flexible touch layer；2. cover sheet；
21. flexible region；22. non-flexible region；Angle between two planes of α interfaces.
Embodiment
To make those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and specific implementation
Mode is described in further detail to a kind of display panel provided by the present invention and display device.
Embodiment 1：
The present embodiment provides a kind of display panel, as depicted in figs. 1 and 2, including：Flexible display substrates 1 and cover sheet
2, cover sheet 2 is covered on flexible display substrates 1, and cover sheet 2 includes flexible region 21, and the correspondence of flexible region 21 is located at soft
Property display base plate 1 fold domain, flexible region 21 is less than 100MPa using modulus of elasticity, and tensile strength is more than 50MPa
Material.
By making the flexible region 21 of cover sheet 2 use modulus of elasticity to be less than 100MPa, and tensile strength is more than 50MPa
Material, display panel can be made in bending, its neutral line (stress being subject in BENDING PROCESS for 0 film layer) is to soft
Property display base plate 1 in device layer (i.e. light emitting device layer) it is mobile, make neutral line closer to the device in flexible display substrates 1
Layer, so that the stress that the device layer in flexible display substrates 1 is subject to reduces, then makes the device layer in flexible display substrates 1
Strain after effect is stressed reduces, and then the display panel is recovered smooth shape within a short period of time upon bending
State, has finally been reduced or avoided injury of the display panel to wherein each film layer in BENDING PROCESS.
In the present embodiment, cover sheet 2 also includes non-flexible region 22, and the correspondence of non-flexible region 22 is located at Flexible Displays base
The includes non-collapsible region of plate 1；Flexible region 21 and the interface of non-flexible region 22 are curved surface.It is arranged such, when cover sheet 2 is curved
Qu Shi, curved surface interface can disperse the stress for docking region of flexible region 21 and non-flexible region 22, make on cover sheet 2
Flexible region 21 tends to be uniform with the region stress distribution of docking of non-flexible region 22, so that the display panel is in bending,
Docking region will not be damaged to each film layer of other in display panel.
Preferably, the interface of flexible region 21 and non-flexible region 22 is cambered surface, and the radius of curvature of cambered surface is identical or not
Together.
In the present embodiment, the use methacrylate copolymer of flexible region 21 polymerize with nano SiO 2 particle
Thing.The polymeric material is that typical modulus of elasticity is less than 100MPa, and tensile strength is more than 50MPa material.The material shape
Into flexible region 21 be beneficial to bending, and bending when can reduce the stress suffered by flexible display substrates 1, then make flexibility
Strain of the display base plate 1 after effect is stressed reduces, so that the display panel upon bending can be within a short period of time
Recover formation state, and then injury of the display panel to wherein each film layer in BENDING PROCESS has been reduced or avoided.Certainly, it is soft
Property region 21 can also be less than 100MPa using other modulus of elasticity, and tensile strength is more than 50MPa material.
In the present embodiment, non-flexible region 22 includes the base material of PET or polyimide material, in addition to is arranged on base
Silica coating or titanium nitride coating on material.Silica coating or titanium nitride coating are hard coat, in PET or polyamides
Hard coat is coated with the base material of imines material, can make the non-flexible region 22 of cover sheet 2 has certain hardness, so that very
The includes non-collapsible region of flexible display substrates 1 is protected well, makes it keep certain non-folded state to be shown.
It should be noted that the hard coat being arranged on base material can also be the coating of other materials, as long as the hard
Coating makes non-flexible region 22 have certain hardness after being applied on base material, can be to the non-collapsible of flexible display substrates 1
Region forms good protection.
In the present embodiment, cover sheet 2 is arranged on the light emission side of flexible display substrates 1.2 pairs of cover sheet can so be made
Flexible display substrates 1 form good protection, at the same can also auxiliary flexible display base plate 1 bent well.
In the present embodiment, flexible display substrates 1 include flexible display screen 11 and flexible polaroid 12, and flexible polaroid 12 is set
Put the light emission side in flexible display screen 11.Flexible polaroid 12 generally uses rotatory polarization piece, for preventing flexible display screen 11 from showing
The image shown does not see Chu to the reflection of light due to its exiting surface.Cover sheet 2 is located at the remote soft of flexible polaroid 12
The side of property display screen 11.Cover sheet 2 is arranged such, can be to the light emission side of flexible polaroid 12 and flexible display screen 11
Form covering well and protect, while also helping the bending for aiding in whole flexible display substrates 1.
In the present embodiment, flexible display substrates 1 also include flexible touch layer 13, and flexible touch layer 13 is arranged on Flexible Displays
The light emission side of screen 11；The position of flexible touch layer 13 and flexible polaroid 12 can be exchanged；Cover sheet 2 is located at the soft of mutual superimposition
Property polaroid 12 and flexible touch layer 13 remote flexible display screen 11 side.Flexible touch layer 13 can make the display panel real
Existing touch-control is shown.Flexible touch layer 13 and any one in flexible polaroid 12 can close to flexible display screen 11 light emission side
Set, also can away from flexible display screen 11 light emission side set.Cover sheet 2 is arranged on the light emission side of flexible display substrates 1
Outermost, can form covering well and protect to the overall light emission side of flexible display substrates 1, while it is whole to also help auxiliary
The bending of individual flexible display substrates 1.
Embodiment 2：
The present embodiment provides a kind of display panel, unlike embodiment 1, as shown in figure 3, flexible region 21 with it is non-
The interface of flexible region 22 is formed by more than two plain splices, and the angle between two planes of arbitrary neighborhood is more than 0 DEG C
And less than 180 DEG C.
By more than two planes, the interface in a certain angle being spliced can disperse flexible region 21 each other
The stress in region is being docked with non-flexible region 22, is making on cover sheet 2 flexible region 21 and non-flexible region 22 in docking area
The stress distribution in domain tends to be uniform, so that the display panel is in bending, docking region will not be to other in display panel
Each film layer is damaged.
Preferably, as shown in figure 3, flexible region 21 and the interface of non-flexible region 22 are formed by two plain splices,
And the angle α between the two planes is more than 0 DEG C and less than 180 DEG C.
It should be noted that flexible region 21 and the interface of non-flexible region 22 can also be by three or more than four
Plain splice is formed, as long as can disperse flexible region 21 is docking the stress in region with non-flexible region 22, is made on cover sheet 2
Flexible region 21 tends to be uniform with non-flexible region 22 in the stress distribution for docking region.
The other structures and material of display panel are in the same manner as in Example 1 in the present embodiment, and here is omitted.
Embodiment 1-2 beneficial effect：Display panel provided in embodiment 1-2, by the flexibility for making cover sheet
Region is less than 100MPa using modulus of elasticity, and tensile strength is more than 50MPa material, can make display panel in bending,
Device layer (i.e. photophore of its neutral line (stress being subject in BENDING PROCESS is 0 film layer) into flexible display substrates
Part layer) it is mobile, make neutral line closer to the device layer in flexible display substrates so that the device layer in flexible display substrates by
The stress arrived reduces, and then reduces strain of the device layer after effect is stressed in flexible display substrates, and then make this
Display panel can recover formation state within a short period of time upon bending, and display panel has finally been reduced or avoided and has bent through
To the injury of wherein each film layer in journey.
Embodiment 3：
The present embodiment provides a kind of display device, including the display panel in embodiment 1 or 2.
By using the display panel in embodiment 1 or 2, the bending property of the display device is improved, so that this is aobvious
Showing device realizes preferably bending display.
Display device provided by the present invention can be that oled panel, OLED TVs, display, mobile phone, navigator etc. are appointed
What has the product or part of OLED display functions.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, but the invention is not limited in this.For those skilled in the art, the essence of the present invention is not being departed from
In the case of refreshing and essence, various changes and modifications can be made therein, and these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of display panel, including：Flexible display substrates and cover sheet, the cover sheet are covered in the Flexible Displays
On substrate, it is characterised in that the cover sheet includes flexible region, the flexible region correspondence is located at the Flexible Displays base
The fold domain of plate, the flexible region is less than 100MPa using modulus of elasticity, and tensile strength is more than 50MPa material.
2. display panel according to claim 1, it is characterised in that the cover sheet also includes non-flexible region, institute
State includes non-collapsible region of the non-flexible region correspondence positioned at the flexible display substrates；
The flexible region and the interface of the non-flexible region are curved surface.
3. display panel according to claim 2, it is characterised in that the flexible region and pair of the non-flexible region
Junction is cambered surface, and the radius of curvature of the cambered surface is identical or different.
4. display panel according to claim 2, it is characterised in that the flexible region and pair of the non-flexible region
Junction is formed by more than two plain splices, and the angle between two planes of arbitrary neighborhood is more than 0 DEG C and less than 180
℃。
5. display panel according to claim 1, it is characterised in that the flexible region uses methacrylate copolymers
The polymer of thing and nano SiO 2 particle.
6. display panel according to claim 2, it is characterised in that the non-flexible region includes PET or polyamides
The base material of imines material, in addition to silica coating or titanium nitride coating on the substrate are set.
7. display panel according to claim 1, it is characterised in that the cover sheet is arranged on the Flexible Displays base
The light emission side of plate.
8. display panel according to claim 7, it is characterised in that the flexible display substrates include flexible display screen and
Flexible polaroid, the flexible polaroid is arranged on the light emission side of the flexible display screen；
The cover sheet is located at the side of the remote flexible display screen of the flexible polaroid.
9. display panel according to claim 8, it is characterised in that the flexible display substrates also include flexible touch
Layer, the flexible touch layer is arranged on the light emission side of the flexible display screen；
The position of the flexible touch layer and the flexible polaroid can be exchanged；The cover sheet is located at the described of mutual superimposition
The side of the remote flexible display screen of flexible polaroid and flexible touch layer.
10. a kind of display device, it is characterised in that including the display panel described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815271.1A CN106328003B (en) | 2016-09-09 | 2016-09-09 | A kind of display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815271.1A CN106328003B (en) | 2016-09-09 | 2016-09-09 | A kind of display panel and display device |
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| CN106328003A CN106328003A (en) | 2017-01-11 |
| CN106328003B true CN106328003B (en) | 2017-10-17 |
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| JP2016021235A (en) * | 2014-07-14 | 2016-02-04 | 三星ディスプレイ株式會社Ｓａｍｓｕｎｇ Ｄｉｓｐｌａｙ Ｃｏ．，Ｌｔｄ． | Flexible display device including touch panel |
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| CN105280836A (en) * | 2015-09-10 | 2016-01-27 | 上海和辉光电有限公司 | Method for preparing flexible protective layer and flexible display device |
| CN205508290U (en) * | 2016-04-08 | 2016-08-24 | 京东方科技集团股份有限公司 | Flexible display module and flexible display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102170023B1 (en) | 2017-02-21 | 2020-10-26 | 보에 테크놀로지 그룹 컴퍼니 리미티드 | Flexible display panel, manufacturing method thereof, and flexible display device |
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| Publication number | Publication date |
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| CN106328003A (en) | 2017-01-11 |
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