CN209561458U - Flexible display panels and flexible display apparatus - Google Patents
Flexible display panels and flexible display apparatus Download PDFInfo
- Publication number
- CN209561458U CN209561458U CN201821925185.7U CN201821925185U CN209561458U CN 209561458 U CN209561458 U CN 209561458U CN 201821925185 U CN201821925185 U CN 201821925185U CN 209561458 U CN209561458 U CN 209561458U
- Authority
- CN
- China
- Prior art keywords
- layer
- flatness layer
- flexible display
- display panels
- flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
The utility model relates to flexible display panels and flexible display apparatus.Provide a kind of flexible display panels, comprising: flexible substrate；Flatness layer, on flexible substrates, the upper surface of flatness layer is more flat than the upper surface of flexible substrate for setting；Water oxygen barrier layer is arranged on flatness layer；And display device layer, it is arranged on water oxygen barrier layer.Above-mentioned flexible display panels and display device, due to being provided with flatness layer between flexible substrate and water oxygen barrier layer, it thus can reduce the influence of spike and sags and crests to water oxygen barrier layer on flexible substrate surface, reduce the defect for the water oxygen barrier layer being formed on flatness layer, the fraction defective for thereby reducing flexible display panels improves the display effect of display panel.
Description
Technical field
The utility model relates to field of display technology, relate more specifically to flexible display panels and flexible display apparatus.
Background technique
Can Flexible Displays be Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) with respect to other
One of significant advantage of display technology.Flexible Displays are by using flexible substrate combination plastic rear cover or combination film encapsulation technology
To realize.Consideration OLED process compatibility, the material that the material of flexible substrate need to select glass transition temperature higher, for example (,) it is transparent
Polyimides (Polyimide, PI).After PI is grown in glass support plate, so that it may be readily achieved OLED production process.
Currently, common PI substrate preparation method is: first with high viscosity PI liquid scratch (Slot-Die Coating) or
It sprays (Spray Coating), is spin coating (Spin Coating), then preliminary drying with low viscosity PI liquid again after preliminary drying, it is finally high again
Temperature baking post bake.The film thickness uniformity of the PI film of this method production is preferable, however film surface is easy to produce spike or sags and crests, leads
The water oxygen barrier layer made in the flexible substrate is caused also to generate defect, and then it is bad to cause OLED device to show.
Utility model content
Based on this, it is necessary to for existing flexible display panels since flexible substrate surface is easy to produce spike or bumps
It puts and water oxygen barrier layer is caused to lead to the problem of defect, a kind of flexible display panels are provided, can reduce lacking in flexible substrate
Fall into the influence to the water oxygen barrier layer formed thereon.
One aspect according to the present utility model provides a kind of flexible display panels comprising: flexible substrate；It is flat
Layer, on flexible substrates, the upper surface of flatness layer is more flat than the upper surface of flexible substrate for setting；Water oxygen barrier layer, setting is flat
On smooth layer；And display device layer, it is arranged on water oxygen barrier layer.
The angle segment difference of flatness layer is less than 0.1 μm in one of the embodiments,.
The surface roughness of the flatness layer is less than 1nm in one of the embodiments,.
The material of flatness layer includes any one of following in one of the embodiments: phenolic resin system photoresist, Asia
Gram force resin and polyimide resin.
In one of the embodiments, flatness layer with a thickness of 0.5 μm -2 μm.
Flatness layer is coated via flatness layer mother liquor and is formed after solidifying in one of the embodiments, flatness layer mother liquor
Viscosity is 2cp-8cp.
The deflation rate of flatness layer is less than 1% in one of the embodiments, and flatness layer is for wavelength in 380nm-760nm
The transmitance of light in range is greater than 98%.
The material of water oxygen barrier layer includes one in aluminium oxide, silicon oxide carbide and silicon nitride in one of the embodiments,
Kind or it is a variety of, water oxygen barrier layer with a thickness of
Display device layer includes OLED structure in one of the embodiments,.
Other side according to the present utility model provides any in a kind of display device, including such as above-described embodiment
Display panel described in one.
Above-mentioned flexible display panels and display device, it is flat due to being provided between flexible substrate and water oxygen barrier layer
Layer, and the upper surface of flatness layer is more flat than the upper surface of flexible substrate, it is thus possible to reduce the point on flexible substrate upper surface
The influence of peak and sags and crests to water oxygen barrier layer reduces the defect for the water oxygen barrier layer being formed on flatness layer, and then reduces
The fraction defective of flexible display panels, improves the display effect of display panel.
Detailed description of the invention
The embodiment that will be described the preferred of the utility model by way of example with reference to attached drawing rather than limit, in which:
Fig. 1 is the schematic diagram of the flexible display panels in one embodiment of the application.
Fig. 2 is the flow chart of the preparation method of the flexible display panels in one embodiment of the application.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant
Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific implementation opened.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Each technical characteristic of above embodiments can be with
Arbitrarily combined, for simplicity of description, it is not all possible to each technical characteristic in above-described embodiment combination all into
Row description, as long as all should be considered as described in this specification however, there is no contradiction in the combination of these technical features.
This application provides a kind of flexible display panels, as shown in Figure 1, the flexibility shown in one embodiment of the application is aobvious
Show the schematic diagram of panel 100.Flexible display panels include the flexible substrate 110 stacked gradually, flatness layer 120, water oxygen barrier layer
130 and display device layer 140.
Specifically, the material of the flexible substrate 110 in the present embodiment can include but is not limited to: polyimides PI, polyphenyl
Ethylene PS, polycarbonate, polyacrylate (polyacrylates), polyetherimide PEI, polyether sulfone PES, gather to benzene two
Formic acid second diester PET and polyethylene naphthalate PEN etc..The setting of flatness layer 120 is obstructed in flexible substrate 110 and water oxygen
Between layer 130.The upper surface of flatness layer 120 is more flat than the upper surface of flexible substrate 110.
Above-mentioned flexible display panels and display device, it is flat due to being provided between flexible substrate and water oxygen barrier layer
Layer, and the upper surface of flatness layer is more flat than the upper surface of flexible substrate, it is thus possible to reduce the point on flexible substrate upper surface
The influence of peak and sags and crests to water oxygen barrier layer reduces the defect for the water oxygen barrier layer being formed on flatness layer, and then reduces
The fraction defective of flexible display panels, improves the display effect of display panel.
In one embodiment, the angle segment difference of flatness layer is less than 0.1 μm.Angle segment difference is the flatness for characterizing flatness layer
Physical quantity, be that the maximum gauge of arbitrary neighborhood point-to-point transmission on flatness layer is poor.In the present embodiment, coats and solidify in flatness layer
Afterwards, using mechanically or chemically polishing process, surface micro-peeks are further removed, realize angle segment difference less than 0.1 μm.This is conducive to
Flat surfaces are formed, OLED device peripheral wiring broken string or resistance maximum probability are reduced.
In one embodiment, the surface roughness of flatness layer is less than 1nm, makes it possible to be formed smooth water oxygen barrier
Layer.
In one embodiment, the material of flatness layer includes any one of following: phenolic resin system photoresist, acrylic
Resin and polyimide resin.
In one embodiment, flatness layer with a thickness of 0.5 μm -2 μm.In one embodiment, flatness layer with a thickness of
0.5μm.In one embodiment, flatness layer with a thickness of 1 μm.In one embodiment, flatness layer with a thickness of 2 μm.
In one embodiment, the viscosity of flatness layer mother liquor is 2cp-8cp.In one embodiment, flatness layer mother liquor
Viscosity is 2cp.In one embodiment, the viscosity of flatness layer mother liquor is 6cp.In one embodiment, flatness layer mother liquor is viscous
Degree is 8cp.In the present embodiment, levelling is conducive to by using the flatness layer mother liquor of low viscosity, can be formed flat
Layer surface is more smooth.
In one embodiment, the deflation rate of flatness layer is less than 1%.In the present embodiment, lower by using deflation rate
Flatness layer mother liquor, be conducive to the stability of water oxygen barrier layer.
In one embodiment, the transmitance of light of the flatness layer for wavelength within the scope of 380nm-760nm is greater than 98%.
In one embodiment, the material of water oxygen barrier layer include one of aluminium oxide, silicon oxide carbide and silicon nitride or
It is a variety of.In one embodiment, water oxygen barrier layer with a thickness ofIn one embodiment, water oxygen obstructs
Layer with a thickness ofIn one embodiment, water oxygen barrier layer with a thickness ofIn one embodiment, water
Oxygen barrier layer with a thickness of
In one embodiment, display device layer includes OLED structure.OLED structure includes at least anode, cathode and organic
Material function layer.
The application also provides a kind of display device, including the display panel in any one above-mentioned embodiment.
The display device of the application can be computer monitor or other electronic consoles.When the display device is only to show
It can also include: cover board when device, for carrying out closed protective to display panel.
The display device of the application is also possible to the mobile device of such as mobile phone, tablet computer.When the display device is to move
When dynamic equipment, should also include: driving device.Driving device can be set under display panel flexible substrate, for display surface
Luminescent device on plate carries out electric drive, so that luminescent device be made to shine under driving device driving.
Above-mentioned display device, including the display panel in any one above-mentioned embodiment, due in flexible substrate and water oxygen
Flatness layer is provided between barrier layer, and the upper surface of flatness layer is more flat than the upper surface of flexible substrate, it is thus possible to reduce
The influence of spike and sags and crests to water oxygen barrier layer on flexible substrate upper surface reduces the water oxygen resistance being formed on flatness layer
The defect of interlayer thereby reduces the fraction defective of flexible display panels, improves the display effect of display panel.
Flexible display panels provided by the present application can be prepared by following preparation method, as shown in Fig. 2, showing
The preparation method of flexible display panels in one embodiment of the application, method includes the following steps:
Step S100, provides flexible substrate.
Step S200 is formed by curing by coating flat layer mother liquor and by 120 DEG C~250 DEG C flat on flexible substrates
Layer, the upper surface of flatness layer are more flat than the upper surface of flexible substrate.
Step S300 forms water oxygen barrier layer on flatness layer.
Step S400 forms display device layer, on water oxygen barrier layer to obtain the flexible display panels.
Specifically, the material of flexible substrate 110 can include but is not limited to: polyimides PI, polystyrene PS, poly- carbonic acid
Ester PC, polyacrylate polyacrylates, polyetherimide PEI, polyether sulfone PES, polyethylene terephthalate PET and
Polyethylene naphthalate PEN etc..Illustratively, the material of flexible substrate 110 is polyimides PI.In flexible substrate
It is formed by curing flatness layer 120 by coating flat layer mother liquor on 110 and by 120 DEG C~250 DEG C, then on flatness layer 120
Form water oxygen barrier layer 130.Wherein, the upper surface of flatness layer 120 is more flat than the upper surface of flexible substrate 110.Then in water oxygen
Display device layer 140 is formed on barrier layer 130, to obtain flexible display panels 100.Illustratively, display device layer 140 wraps
OLED structure is included, which includes at least anode, cathode and organic material functional layer.
The flexible display panels that above-mentioned preparation method is prepared, due to being arranged between flexible substrate and water oxygen barrier layer
There is flatness layer, and the upper surface of flatness layer is more flat than the upper surface of flexible substrate, it is thus possible to reduce flexible substrate upper surface
On the influence to water oxygen barrier layer of spike and sags and crests, reduce the defect for the water oxygen barrier layer being formed on flatness layer, into
And the fraction defective of flexible display panels is reduced, improve the display effect of display panel.
In one embodiment, step S100, providing flexible substrate may include: offer rigid substrates, then in rigidity
Flexible substrate is formed on substrate.In another embodiment, step S100, providing flexible substrate may include: to provide rigid base
Plate forms release layer on the rigid substrate, then forms flexible substrate on release layer.In one embodiment, release layer
Material can be acryl resin, and bat printing can be used or spin coating proceeding is formed, the thickness of release layer is less thanAbove-mentioned
In embodiment, the manufacturing method of display panel further includes removing flexible substrate from rigid substrates or release layer.
Illustratively, flexible substrate can be formed in the following manner: first scratch (Slot-Die with high viscosity PI liquid
Coating) or (Spray Coating) is sprayed, does spin coating (Spin Coating) with low viscosity PI liquid again after preliminary drying, then in advance
It dries, finally high-temperature baking post bake again.
Illustratively, step S200 forms flatness layer on flexible substrates, comprising: by coating shape on flexible substrates
At flatness layer, then using mechanically or chemically polishing process, surface micro-peeks are further removed, so that the angle segment difference of flatness layer
Less than 0.1 μm.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of this application, various modifications and improvements can be made, these belong to the application's
Protection scope.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of flexible display panels characterized by comprising
Flexible substrate；
Flatness layer is arranged in the flexible substrate, and the upper surface of the flatness layer is more flat than the upper surface of the flexible substrate；
Water oxygen barrier layer, setting is on the flat laye；And
Display device layer is arranged on the water oxygen barrier layer.
2. flexible display panels according to claim 1, which is characterized in that the angle segment difference of the flatness layer is less than 0.1 μm.
3. flexible display panels according to claim 1, which is characterized in that the surface roughness of the flatness layer is less than
1nm。
4. flexible display panels according to claim 1, which is characterized in that the material of the flatness layer includes in following
It is any: phenolic resin system photoresist, acryl resin and polyimide resin.
5. flexible display panels according to claim 1, which is characterized in that the flatness layer with a thickness of 0.5 μm -2 μm.
6. flexible display panels according to claim 1, which is characterized in that the flatness layer is coated via flatness layer mother liquor
And formed after solidifying, the viscosity of the flatness layer mother liquor is 2cp-8cp.
7. flexible display panels according to claim 1, which is characterized in that the deflation rate of the flatness layer is less than 1%, institute
The transmitance for stating light of the flatness layer for wavelength within the scope of 380nm-760nm is greater than 98%.
8. flexible display panels according to claim 1, which is characterized in that the water oxygen barrier layer with a thickness of
9. flexible display panels according to claim 1 to 8, which is characterized in that the display device layer includes
OLED structure.
10. a kind of flexible display apparatus, which is characterized in that including Flexible Displays according to claim 1 to 9
Panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821925185.7U CN209561458U (en) | 2018-11-21 | 2018-11-21 | Flexible display panels and flexible display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821925185.7U CN209561458U (en) | 2018-11-21 | 2018-11-21 | Flexible display panels and flexible display apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209561458U true CN209561458U (en) | 2019-10-29 |
Family
ID=68300916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821925185.7U Active CN209561458U (en) | 2018-11-21 | 2018-11-21 | Flexible display panels and flexible display apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209561458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768620A (en) * | 2021-01-11 | 2021-05-07 | 宁波诺丁汉大学 | Light extraction substrate and high-efficiency electroluminescent device |
-
2018
- 2018-11-21 CN CN201821925185.7U patent/CN209561458U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768620A (en) * | 2021-01-11 | 2021-05-07 | 宁波诺丁汉大学 | Light extraction substrate and high-efficiency electroluminescent device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9403947B2 (en) | Display device, method for manufacturing same, polyimide film for display device supporting bases, and method for producing polyimide film for display device supporting bases | |
| CN106773206B (en) | The manufacturing method of display panel | |
| CN103332031B (en) | The preparation method, scattering rete and preparation method thereof of galley, display unit | |
| US20150090395A1 (en) | Touch panel and manufacturing method thereof | |
| CN104393014A (en) | Array substrate, manufacturing method thereof, flexible display panel and display device | |
| CN104517990A (en) | Organic light emitting diode display panel and organic light emitting diode display device | |
| CN103943544A (en) | Method for manufacturing flexible element | |
| US20150349296A1 (en) | Optical-Member Adhesive Composition, Optical-Member Adhesive Layer, and Surface Light Source Device | |
| CN104751773B (en) | A kind of flexible display and its manufacture method | |
| CN106773207A (en) | The manufacture method of display panel | |
| CN1862329A (en) | Fabricating method of flexible display | |
| US10615351B2 (en) | Flexible display assembly including a first inorganic layer formed in bending region having a thickness less than a second inorganic layer formed in non-bending region, a manufacturing method for forming the same, and a display panel | |
| CN106935593B (en) | Flexible display apparatus and preparation method thereof | |
| CN209561458U (en) | Flexible display panels and flexible display apparatus | |
| CN106164832A (en) | Touch window and the display with this touch window | |
| WO2021012402A1 (en) | Organic light-emitting diode display panel and method for manufacturing same | |
| EP3352238A1 (en) | Method for preparing uneven particle layer, organic electroluminescent device, and display device | |
| CN107359282A (en) | display panel and preparation method thereof, display | |
| CN100444027C (en) | Method for making reverse ladder structure by using architecture-complementary micro-patterning technique | |
| CN108336095A (en) | Substrate, array substrate and preparation method thereof | |
| JP2004020746A (en) | Substrate for light emitting device and light emitting device using same | |
| WO2020192292A1 (en) | Flexible display apparatus and preparation method therefor | |
| US20230157140A1 (en) | Oled device structure and manufacturing method thereof | |
| CN116445097A (en) | Adhesive film for direct display Mini LED packaging protection and preparation method thereof | |
| US11394012B2 (en) | Organic light-emitting device including light outputting layer having wavy shape, and manufacturing method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |