CN106328003A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN106328003A CN106328003A CN201610815271.1A CN201610815271A CN106328003A CN 106328003 A CN106328003 A CN 106328003A CN 201610815271 A CN201610815271 A CN 201610815271A CN 106328003 A CN106328003 A CN 106328003A
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- Prior art keywords
- flexible
- display
- region
- described flexible
- cover sheet
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Classifications
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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
Abstract
The invention provides a display panel and a display device. The display panel comprises a flexible display substrate and a protective cover plate. The display substrate is covered with the protective cover plate, the protective cover plate comprises a flexible area, and the flexible area corresponds to a folding area located on the flexible display substrate, and is made from a material with the elasticity modulus smaller than 100 MPa and the tensile strength larger than 50 MPa. When the display panel is bent, a neutral layer (namely, a film layer with the stress of 0 in the bending process) can move towards a device layer (namely, a luminescent device layer) in the flexible display substrate, and is closer to the device layer in the flexible display substrate accordingly, the stress of the device layer in the flexible display substrate is reduced, the strain after the device layer in the flexible display substrate suffers from the stress effect is further reduced, the display panel is bent and then can further recover the smooth stage in the short time, and finally, damage to all the film layers in the display-panel bending process is reduced or avoided.
Description
Technical field
The present invention relates to Display Technique field, in particular it relates to a kind of display floater and display device.
Background technology
Along with the development of flexible display screen, people are more and more higher to the expectation of collapsible display product.
Flexible Displays module generally includes HC (hard coating) protective layer, touch screen, polaroid, display screen etc. at present
Film layer structure, HC protective layer typically uses the material that elastic modelling quantity is bigger, for protecting folding display screen.At present
The integral thickness of Flexible Displays module is thicker, and owing to the elastic modelling quantity of HC protective layer is relatively big, when Flexible Displays module bends,
Easily make the device layer being located away from showing module of neutral line (i.e. subjected to stress is the film layer of 0 in BENDING PROCESS), continue
And cause the bending stress that the device layer (such as light emitting device layer) of whole display module is subject to relatively greatly, after display module integrally bending
It is difficult to recover formation state at short notice, easily the device layer of display module is caused damage.
Summary of the invention
The present invention is directed to above-mentioned technical problem present in prior art, it is provided that a kind of display floater and display device.Should
Display floater is when bending, and its neutral line (i.e. subjected to stress is the film layer of 0 in BENDING PROCESS) can be to flexible display substrates
In device layer (i.e. light emitting device layer) mobile, make neutral line closer to the device layer in flexible display substrates so that flexible
Device layer subjected to stress in display base plate reduces, and then makes the device layer in flexible display substrates after being stressed effect
Strain reduce, and then make this display floater can recover formation state within a short period of time upon bending, finally reduce or keep away
Exempt from the display floater injury to wherein each film layer in BENDING PROCESS.
The present invention provides a kind of display floater, including: flexible display substrates and cover sheet, described cover sheet covers
On described flexible display substrates, described cover sheet includes that flexible region, described flexible region correspondence are positioned at described Flexible Displays
The fold domain of substrate, described flexible region uses elastic modelling quantity to be less than 100MPa, and the material that hot strength is more than 50MPa.
Preferably, described cover sheet also includes that non-flexible region, described non-flexible region correspondence are positioned at described flexibility and show
Show the non-collapsible region of substrate;
Described flexible region is curved surface with the interface of described non-flexible region.
Preferably, described flexible region is cambered surface with the interface of described non-flexible region, the radius of curvature of described cambered surface
Identical or different.
Preferably, described flexible region is formed by plural plain splice with the interface of described non-flexible region,
Angle between two described planes of arbitrary neighborhood is more than 0 DEG C and less than 180 DEG C.
Preferably, described flexible region uses the polymer of methacrylate copolymer and nano SiO 2 particle.
Preferably, described non-flexible region includes the base material of PET or polyimide material, also includes being arranged on described
Silica coating on base material or titanium nitride coating.
Preferably, described cover sheet is arranged on the light emission side of described flexible display substrates.
Preferably, described flexible display substrates includes that flexible display screen and flexible polaroid, described flexible polaroid are arranged
Light emission side at described flexible display screen;
Described cover sheet is positioned at the side away from described flexible display screen of described flexible polaroid.
Preferably, described flexible display substrates also includes that flexible touch layer, described flexible touch layer are arranged on described flexibility
The light emission side of display screen;
Described flexible touch layer can exchange with the position of described flexible polaroid;Described cover sheet is positioned at mutual superimposition
Described flexible polaroid and the side away from described flexible display screen of described flexible touch layer.
The present invention also provides for a kind of display device, including above-mentioned display floater.
Beneficial effects of the present invention: display floater provided by the present invention, by making the flexible region of cover sheet use
Elastic modelling quantity is less than 100MPa, and hot strength is more than the material of 50MPa, it is possible to make display floater when bending, its neutral line
(i.e. subjected to stress is the film layer of 0 in BENDING PROCESS) device layer (i.e. light emitting device layer) in flexible display substrates moves
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 makes the strain after being stressed effect of the device layer in flexible display substrates reduce, and then makes this display surface
Plate can recover formation state upon bending within a short period of time, display floater has finally been 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 floater, improves the bendability of this display device
Can, so that this display device achieves preferably bends display.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of display floater 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 floater in the embodiment of the present invention 2.
Description of reference numerals therein:
1. flexible display substrates;11. flexible display screens;12. flexible polaroids;13. flexible touch layers;2. cover sheet;
21. flexible regions;22. non-flexible region;α. the angle between two planes of interface.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with the accompanying drawings and be embodied as
A kind of display floater provided by the present invention and display device are described in further detail by mode.
Embodiment 1:
A kind of display floater of the present embodiment offer, as depicted in figs. 1 and 2, including: flexible display substrates 1 and cover sheet
2, cover sheet 2 covers on flexible display substrates 1, and cover sheet 2 includes flexible region 21, and flexible region 21 correspondence is positioned at soft
Property display base plate 1 fold domain, flexible region 21 uses elastic modelling quantity to be less than 100MPa, and hot strength is more than 50MPa's
Material.
By making the flexible region 21 of cover sheet 2 use elastic modelling quantity to be less than 100MPa, and hot strength is more than 50MPa
Material, it is possible to make display floater bending time, its neutral line (i.e. subjected to stress is the film layer of 0 in BENDING PROCESS) is to soft
Property display base plate 1 in device layer (i.e. light emitting device layer) mobile, make neutral line closer to the device in flexible display substrates 1
Layer, so that the device layer subjected to stress in flexible display substrates 1 reduces, makes the device layer in flexible display substrates 1 then
Strain after being stressed effect reduces, and then makes this display floater can recover smooth shape upon bending within a short period of time
State, has finally been reduced or avoided the display floater injury to wherein each film layer in BENDING PROCESS.
In the present embodiment, cover sheet 2 also includes that non-flexible region 22, non-flexible region 22 correspondence are positioned at Flexible Displays base
The non-collapsible region of plate 1;Flexible region 21 is curved surface with the interface of non-flexible region 22.It is arranged such, when cover sheet 2 is curved
Qu Shi, curved surface interface can disperse the stress docking region of flexible region 21 and non-flexible region 22, make on cover sheet 2
Flexible region 21 tends to uniform with the region stress distribution of docking of non-flexible region 22, so that this display floater is when bending,
Docking region will not damage by film layer each to other in display floater.
Preferably, flexible region 21 is cambered surface with the interface of non-flexible region 22, and the radius of curvature of cambered surface is identical or not
With.
In the present embodiment, flexible region 21 uses being polymerized of methacrylate copolymer and nano SiO 2 particle
Thing.This polymeric material is that typical elastic modelling quantity is less than 100MPa, and the material that hot strength is more than 50MPa.This material shape
The flexible region 21 become is beneficial to bending, and can reduce the stress suffered by flexible display substrates 1 when bending, then makes flexibility
The display base plate 1 strain after being stressed effect reduces, so that this display floater upon bending can within a short period of time
Recover formation state, and then display floater injury in BENDING PROCESS to wherein each film layer has been reduced or avoided.Certainly, soft
Property region 21 can also use other elastic modelling quantity less than 100MPa, and the material that hot strength is more than 50MPa.
In the present embodiment, non-flexible region 22 includes the base material of PET or polyimide material, also includes being arranged on base
Silica coating on material or titanium nitride coating.Silica coating or titanium nitride coating are hard coat, at PET or polyamides
It is coated with hard coat on the base material of imines material, the non-flexible region 22 of cover sheet 2 can be made to have certain hardness, thus very
Protect well the non-collapsible region of flexible display substrates 1 so that it is the non-folded state keeping certain shows.
It should be noted that the hard coat being arranged on base material can also be the coating of other materials, as long as this hard
Coating makes non-flexible region 22 have certain hardness after being applied on base material, it is possible to the non-collapsible to flexible display substrates 1
Region is formed well to be protected.
In the present embodiment, cover sheet 2 is arranged on the light emission side of flexible display substrates 1.Cover sheet 2 so can be made right
Flexible display substrates 1 forms well protection, can also well bend by auxiliary flexible display base plate 1 simultaneously.
In the present embodiment, flexible display substrates 1 includes flexible display screen 11 and flexible polaroid 12, and flexible polaroid 12 sets
Put the light emission side at flexible display screen 11.Flexible polaroid 12 generally uses rotatory polarization sheet, is used for preventing flexible display screen 11 from showing
The image shown does not sees Chu due to its exiting surface to the reflection of light.Cover sheet 2 be positioned at flexible polaroid 12 away from soft
The side of property display screen 11.Cover sheet 2 is arranged such, it is possible to flexible polaroid 12 and the light emission side of flexible display screen 11
Formed and well cover and protection, also help the bending assisting whole flexible display substrates 1 simultaneously.
In the present embodiment, flexible display substrates 1 also includes that flexible touch layer 13, flexible touch layer 13 are arranged on Flexible Displays
The light emission side of screen 11;Flexible touch layer 13 can exchange with the position of flexible polaroid 12;Cover sheet 2 is positioned at the soft of mutual superimposition
Property polaroid 12 and the side away from flexible display screen 11 of flexible touch layer 13.Flexible touch layer 13 can make this display floater real
Existing touch-control shows.Flexible touch layer 13 and any one in flexible polaroid 12 all can be near the light emission side of flexible display screen 11
Arrange, it is possible to the light emission side away from flexible display screen 11 is arranged.Cover sheet 2 is arranged on the light emission side of flexible display substrates 1
Outermost, it is possible to the overall light emission side of flexible display substrates 1 is formed well covering and protection, also helps auxiliary whole simultaneously
The bending of individual flexible display substrates 1.
Embodiment 2:
The present embodiment provides a kind of display floater, unlike embodiment 1, as it is shown on figure 3, flexible region 21 is with non-
The interface of flexible region 22 is formed by plural plain splice, and the angle between two planes of arbitrary neighborhood is more than 0 DEG C
And less than 180 DEG C.
Flexible region 21 can be disperseed by the plural plane interface being spliced the most in a certain angle
Docking the stress in region with non-flexible region 22, making on cover sheet 2 flexible region 21 and non-flexible region 22 in docking area
The stress distribution in territory tends to uniform, so that this display floater is when bending, docking region will not be to other in display floater
Each film layer damages.
Preferably, as it is shown on figure 3, the interface of flexible region 21 and non-flexible region 22 is formed by two plain splice,
And the angle α between the two plane is more than 0 DEG C and less than 180 DEG C.
It should be noted that the interface of flexible region 21 and non-flexible region 22 can also be by three or more than four
Plain splice forms, as long as flexible region 21 can be disperseed to dock the stress in region with non-flexible region 22, makes on cover sheet 2
Flexible region 21 tends to uniform with non-flexible region 22 in the stress distribution docking region.
In the present embodiment, other structures and the material of display floater are in the same manner as in Example 1, and here is omitted.
The beneficial effect of embodiment 1-2: the display floater provided in embodiment 1-2, by making the flexibility of cover sheet
Region use elastic modelling quantity less than 100MPa, and the material that hot strength is more than 50MPa, it is possible to make display floater when bending,
Its neutral line (i.e. subjected to stress is the film layer of 0 in BENDING PROCESS) device layer (i.e. luminous organ in flexible display substrates
Part layer) mobile, make neutral line closer to the device layer in flexible display substrates so that the device layer in flexible display substrates is subject to
The stress arrived reduces, and then makes the strain after being stressed effect of the device layer in flexible display substrates reduce, and then makes this
Display floater can recover formation state upon bending within a short period of time, display floater has finally been reduced or avoided and has bent through
Injury to wherein each film layer in journey.
Embodiment 3:
The present embodiment provides a kind of display device, including the display floater in embodiment 1 or 2.
By using the display floater in embodiment 1 or 2, improve the bending property of this display device, so that this shows
Showing device achieves and preferably bends display.
Display device provided by the present invention can be, oled panel, OLED TV, display, mobile phone, navigator etc. are appointed
What has product or the parts of OLED display function.
It is understood that the principle that is intended to be merely illustrative of the present of embodiment of above and the exemplary enforcement that uses
Mode, but the invention is not limited in this.For those skilled in the art, in the essence without departing from the present invention
In the case of god and essence, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (10)
1. a display floater, including: flexible display substrates and cover sheet, described cover sheet covers at described Flexible Displays
On substrate, it is characterised in that described cover sheet includes that flexible region, described flexible region correspondence are positioned at described Flexible Displays base
The fold domain of plate, described flexible region uses elastic modelling quantity to be less than 100MPa, and the material that hot strength is more than 50MPa.
Display floater the most according to claim 1, it is characterised in that described cover sheet also includes non-flexible region, institute
State non-flexible region correspondence and be positioned at the non-collapsible region of described flexible display substrates;
Described flexible region is curved surface with the interface of described non-flexible region.
Display floater the most according to claim 2, it is characterised in that described flexible region is right with described non-flexible region
Junction is cambered surface, and the radius of curvature of described cambered surface is identical or different.
Display floater the most according to claim 2, it is characterised in that described flexible region is right with described non-flexible region
Junction is formed by plural plain splice, and the angle between two described planes of arbitrary neighborhood is more than 0 DEG C and less than 180
℃。
Display floater the most according to claim 1, it is characterised in that described flexible region uses methacrylate copolymers
Thing and the polymer of nano SiO 2 particle.
Display floater the most according to claim 2, it is characterised in that described non-flexible region includes PET or polyamides
The base material of imines material, also includes arranging silica coating on the substrate or titanium nitride coating.
Display floater the most according to claim 1, it is characterised in that described cover sheet is arranged on described Flexible Displays base
The light emission side of plate.
Display floater the most according to claim 7, it is characterised in that described flexible display substrates include flexible display screen and
Flexible polaroid, described flexible polaroid is arranged on the light emission side of described flexible display screen;
Described cover sheet is positioned at the side away from described flexible display screen of described flexible polaroid.
Display floater the most according to claim 8, it is characterised in that described flexible display substrates also includes flexible touch
Layer, described flexible touch layer is arranged on the light emission side of described flexible display screen;
Described flexible touch layer can exchange with the position of described flexible polaroid;Described cover sheet is positioned at the described of mutual superimposition
Flexible polaroid and the side away from described flexible display screen of described flexible touch layer.
10. a display device, it is characterised in that include the display floater described in claim 1-9 any one.
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