CN109461836A - The preparation method of flexible display panels, display device and flexible display panels - Google Patents
The preparation method of flexible display panels, display device and flexible display panels Download PDFInfo
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- CN109461836A CN109461836A CN201811161085.6A CN201811161085A CN109461836A CN 109461836 A CN109461836 A CN 109461836A CN 201811161085 A CN201811161085 A CN 201811161085A CN 109461836 A CN109461836 A CN 109461836A
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- groove
- anode
- flexible display
- display panels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/81—Anodes
- H10K50/813—Anodes characterised by their shape
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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
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present embodiments relate to flexible display technologies field, the preparation method of a kind of flexible display panels, display device and flexible display panels is disclosed.The flexible display panels include flexible substrates and the anode that is arranged in the flexible substrates, the anode is provided at least one second groove on the face of the flexible substrates towards at least one first groove, the anode is provided on the face of the flexible substrates.At least one first groove is arranged on face of the anode towards flexible substrates in embodiment of the present invention, at least one second groove is set on face of the anode away from flexible substrates, when flexible display panels bending, the edge of first groove and the second groove can play the role of stress release, to improve the stress ability to bear of anode, reduces anode and the risk being broken occur when flexible display screen is in bending.
Description
Technical field
The present embodiments relate to flexible display technologies field, in particular to a kind of flexible display panels, display device and
The preparation method of flexible display panels.
Background technique
With the development of science and technology, the requirement of flexible display technologies is higher and higher, the dynamic of flexible display panels bends ability
Demand is increasing.But flexible display panels, during being bending or folding over, the anode in pixel unit deposits the risk of cracking.
This is because the monolith rectangular configuration that current anode uses, bending ability is poor, when shielding body bending process, suffered by answer
Power and tension can not discharge, and will assemble anode edge, and edge is caused to generate crack.After edge generates crack, when screen body is bent
Stress will act at crack so that crack becomes larger, from anode crack is caused, influence the transmission of signal.
Summary of the invention
Embodiment of the present invention is designed to provide a kind of flexible display panels, display device and flexible display panels
Preparation method reduces the risk of anode fracture to improve the stress ability to bear of anode.
In order to solve the above technical problems, embodiments of the present invention provide a kind of flexible display panels, including flexible base
Bottom and the anode being arranged in the flexible substrates, the anode is towards being provided at least one on the face of the flexible substrates
First groove, the anode are provided at least one second groove on the face of the flexible substrates.
Embodiments of the present invention additionally provide a kind of display device, including above-mentioned flexible display panels.
Embodiments of the present invention additionally provide a kind of preparation method of flexible display panels, comprising the following steps: provide
Flexible substrates；Anode is formed in the flexible substrates, wherein the anode is equipped at least towards the face of the flexible substrates
One the first groove, the anode are equipped at least one second groove away from the face of the flexible substrates.
In terms of existing technologies, at least one is arranged on face of the anode towards flexible substrates in embodiment of the present invention
At least one second groove is arranged on face of the anode away from flexible substrates in first groove, when flexible display panels bending, the
The edge of one groove and the second groove can play the role of stress release, i.e. the inside polycondensation of the first groove of bending direction, anti-
To the inside polycondensation of the second groove of the second groove to external diffusion or bending direction, the first reversed groove to external diffusion,
To discharge stress, stress is avoided to transmit and assemble in anode, the stress ability to bear of anode is improved, anode is reduced
There is the risk being broken in flexible display screen bending.Meanwhile the first groove and the second groove are set on anode, it also increases
The contact area of anode and other film layers helps to be further reduced the risk to crack between anode and other film layers.
In addition, first groove at least two, second groove at least two, first groove with it is described
Second groove is successively alternately arranged.So set, avoiding anode thickness at first groove and the second groove face
It is excessively thin and influence anode construction intensity.
In addition, first groove and the equally spaced setting of the second groove.So set, can be more uniform release
Stress is put, the anti-fracture ability of anode is further improved.
In addition, between spacing and arbitrary neighborhood two second grooves between arbitrary neighborhood two first grooves
Spacing it is equal.So set, being conducive to the convenience of processing and manufacturing.
In addition, the spacing between two neighboring first groove or two neighboring second groove is anode thicknessSo set, the electric conductivity for discharging stress well and guaranteeing anode itself can be played the role of.
In addition, the spacing between adjacent first groove and second groove is anode thicknessSo
Setting, help avoid because the first groove and the setting of the second groove excessively intensively, and the electric conductivity for influencing anode itself.
In addition, the width of first groove and second groove is of same size.So set, being conducive to processing system
The convenience made.
In addition, the width of the width of first groove or second groove is anode thicknessSo set
It sets, helps avoid influencing the electric conductivity of anode because the width of the first groove or the second groove is excessive.
Detailed description of the invention
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element in attached drawing with same reference numbers label are expressed as similar element, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is the schematic diagram of the section structure for the flexible display panels that first embodiment of the invention provides；
Fig. 2 is the stress diagram of the anode in first embodiment of the invention；
Fig. 3 is the schematic diagram of the section structure of the anode in first embodiment of the invention；
Fig. 4 is the flow chart of the preparation method for the flexible display panels that third embodiment of the invention provides；
Fig. 5 is the structural schematic diagram for the display device that four embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Each embodiment be explained in detail.However, it will be understood by those skilled in the art that in each embodiment party of the present invention
In formula, many technical details are proposed in order to make reader more fully understand the present invention.But even if without these technical details
And various changes and modifications based on the following respective embodiments, claimed technical solution of the invention also may be implemented.
The first embodiment of the present invention is related to a kind of flexible display panels.
As shown in Figure 1 and Figure 2, which includes flexible substrates 11 and is arranged in flexible substrates 11
Anode 12, anode 12 include the first surface 121 towards flexible substrates 11 and the second surface 122 away from flexible substrates 11, and
At least one first groove 13 is set on one surface 121, at least one second groove 14 is set on second surface 122.
At least one first groove 13 is arranged in present embodiment on the first surface 121 of anode 12, the second of anode
At least one second groove 14 is set on surface 122, and when anode 12 is bent when by external force, the first of bending direction is recessed
The inside polycondensation of slot 13, the second reversed groove 14 are to external diffusion or the inside polycondensation of the second groove 14 of bending direction, anti-
To the first groove 13 to external diffusion, thus discharge stress, avoid stress transmitted in anode 12 with aggregation, improve anode
12 stress ability to bear reduces anode 12 and the risk being broken occurs when flexible display panels 100 are bent.
In practical applications, when the quantity at least two of the first groove 13, and the quantity of the second groove 14 is also at least
At two, first groove 13 can be made successively to be alternately arranged with the second groove 14.So it is not limited thereto, in practical applications,
Can also according to actual needs, the arrangement mode of flexible design the first groove 13 and the second groove 14 is such as recessed two neighboring first
Two the second grooves 14 are set between slot 13, or the first groove of part 13 and 14 face of the second groove of part are set, this implementation
Mode is without limitation.
As shown in figure 3, the first groove 13 and the equally spaced setting of the second groove 14 can be made in present embodiment, i.e., it is adjacent
Two the first grooves 13 the distance between B be a fixed value, the distance between two neighboring second groove 14 A is also one fixed
Value, above-mentioned two fixed value can not wait (i.e. the distance between two first grooves 13 of arbitrary neighborhood B and arbitrary neighborhood two the
The distance between two grooves 14 A is unequal), can also it is equal (i.e. the distance between two first grooves 13 of arbitrary neighborhood B with
The distance between two the second grooves 14 of arbitrary neighborhood A is equal).In practical applications, can make two neighboring first groove 13 or
The distance between two neighboring second groove 14 is anode thicknessSo set, release stress well can be played
Effect, and can guarantee the electric conductivity of anode itself.In present embodiment, anode thickness is 100~150nm.
In addition, the first adjacent groove can be made in the case where the first groove 13 and the second groove 14 are successively alternately arranged
13 and second the distance between groove 14 C be anode thicknessIt is arranged to avoid the first groove 13 and the second groove 14
It is excessively intensive, and influence the electric conductivity of anode 12.
In present embodiment, the depth E of each first groove 13 can be equal, can not also wait, the depth of each second groove 14
Spending D can also be equal or different.It is equal in the depth E of each first groove 13, and each second groove 14 depth D it is also equal when,
The depth D of the depth E of first groove 13 and the second groove 14 can also be equal or different, and present embodiment does not limit this.
With continued reference to Fig. 1, which further includes TFT layer 15, planarization layer 16, pixel defining layer 17, has
Machine luminescent layer 18 and cathode 19, wherein TFT layer 15 is arranged in flexible substrates 11, the setting of planarization layer 16 in TFT layer 15 and
Between anode 21, organic luminous layer 18 is arranged on anode 21, and cathode 19 is arranged on organic luminous layer 19, pixel defining layer 17
It is arranged between anode 21 and cathode 19, and around organic luminous layer 18, anode 12 and cathode 19 drive organic light emission jointly
Layer 18.
Specifically, the TFT layer 15 includes active layer 151, gate insulation layer 152, grid 153, interlayer insulating film 154, source
Pole 155 and drain electrode 156.Wherein, active layer 151 is set in flexible substrates 11, and gate insulation layer 152 is set to active layer 151
On, grid 153 is set on gate insulation layer 152, and interlayer insulating film 154 is set on grid 153.One end of source electrode 155 and leakage
One end of pole 156 is connected by active layer 151, and to sequentially pass through grid respectively exhausted with 156 other end of draining for the other end of source electrode 155
Edge layer 152, interlayer insulating film 154, extend in planarization layer 16.Via hole is equipped in planarization layer 16, anode 12 passes through the mistake
Hole is electrically connected to source electrode 155 or drain electrode 156 (can be N-type or p-type according to TFT, select connected pole).
In practical applications, flexible substrates 11 can be by acid imide (PI), polycarbonate (PC), polyether sulfone (PES), poly- to benzene
Naphthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR) or glass fiber reinforcement modeling
The polymer materials such as material (FRP) are formed.Flexible substrates 11 can be it is transparent, translucent or opaque, with to setting exist
The formation of each film layer thereon provides support.
Active layer 151 can be indium gallium zinc oxide layer (indium gallium zincoxide, abbreviation IGZO).Grid are exhausted
The inorganic layer that edge layer 152 can be formed for such as silica, silicon nitride or metal oxide, and gate insulation layer 152 can be
Single or multi-layer structure.Grid 153 can for golden (Au), silver-colored (Ag), copper (Cu), nickel (Ni), platinum (Pt), palladium (Pd), aluminium (Al),
The single or multi-layer structure that molybdenum (Mo) or chromium (Cr) are formed, or such as aluminium (Al) neodymium (Nd) alloy, molybdenum (Mo) tungsten (W) alloy
The layer structure that equal alloys are formed.Interlayer insulating film 154 can be formed by insulative inorganic materials such as silicon oxide or silicon nitrides, and layer
Between insulating layer 154 or single or multi-layer structure.
Planarization layer 16 can be the organic layer of the formation such as acryl, polyimides (PI) or benzocyclobutene (BCB).Sun
Pole 21 can be to may include various other functional layers by Indium-tin Oxide Transparent Conductive Film, such as hole injection layer (HIL), hole
At least one of transport layer (HTL), electron transfer layer (ETL) and electron injecting layer (EIL).
Cathode 19 is transparent electrode, by such as lithium (Li), calcium (Ca), lithium fluoride/calcium (LiF/Ca), lithium fluoride/aluminium (LiF/
Al), the film layer that the compound of aluminium (Al), magnesium (Mg) or their combination is formed.
Present embodiment in terms of existing technologies, be arranged on face of the anode towards flexible substrates at least one first
At least one second groove is arranged on face of the anode away from flexible substrates in groove, and when flexible display panels bending, first is recessed
The edge of slot and the second groove can play the role of stress release, avoid stress from transmitting and assemble in anode, improve
The stress ability to bear of anode reduces anode and the risk being broken occurs in flexible display screen bending.Meanwhile it being set on anode
Set the first groove and the second groove, also increase the contact area of anode Yu other film layers, help to be further reduced anode with
The risk to crack between other film layers.
Second embodiment of the invention provides a kind of flexible display panels.Second embodiment is in first embodiment
On the basis of the further improvement done, mainly the improvement is that, second embodiment is also to the first groove and the second groove
Width has done further limitation.
With continued reference to Fig. 3, in present embodiment, the width F of the first groove 13 and the width H sun of the second groove 14 can be made
The half of pole thickness, the width to avoid the first groove 13 and the second groove 14 is wide and influences the electric conductivity of anode 12.
In practical applications, the width F of each first groove 13 can be equal, can not also wait, the width of each second groove 14
Spending H can also be equal or different.It is equal in the width F of each first groove 13, and each second groove 14 width H it is also equal when,
The width H of the width F of first groove 13 and the second groove 14 can also be equal or different, the first groove of present embodiment 13
The width F of width F and the second groove 14 is anode thickness
Third embodiment of the invention provides a kind of preparation method of flexible display panels.
The core of present embodiment is: providing flexible substrates；Anode is formed in the flexible substrates, wherein described
Anode is equipped at least one first groove towards the face of the flexible substrates, and the anode is on the face of the flexible substrates
Equipped at least one the second groove.
The realization details of the preparation method of the flexible display panels of present embodiment is specifically described below, below
Content only for convenience of the realization details provided is understood, not implements the necessary of this programme.
The preparation method of flexible display panels in present embodiment, as shown in figure 4, specifically includes the following steps:
S1: flexible substrates are provided.
S2: TFT layer and planarization layer are formed on a flexible substrate.
Specifically, in step s 2, TFT layer is first formed on a flexible substrate, planarization is then formed on TFT layer
Layer, it is provided with via hole in planarization layer, for connecting TFT layer and anode.
S3: etching planarization layer forms at least one first protrusion, wherein the first protrusion is complementary with the first groove shapes.
S4: anode is formed on the planarization layer.
S5: it etches the anode and forms at least one second groove.
S6: forming organic luminous layer on anode and in second groove, and pixel limits on the organic luminous layer
Layer and cathode layer.
Present embodiment in terms of existing technologies, be arranged on face of the anode towards flexible substrates at least one first
At least one second groove is arranged on face of the anode away from flexible substrates in groove, and when flexible display panels bending, first is recessed
The edge of slot and the second groove can play the role of stress release, avoid stress from transmitting and assemble in anode, improve
The stress ability to bear of anode reduces anode and the risk being broken occurs in flexible display screen bending.Meanwhile it being set on anode
Set the first groove and the second groove, also increase the contact area of anode Yu other film layers, help to be further reduced anode with
The risk to crack between other film layers.
The fourth embodiment of the present invention is related to a kind of display device.
As shown in figure 5, the flexible display apparatus includes flexible display panels described in the first embodiment or the second embodiment.
The flexible display apparatus can be the portable mobile termianls such as mobile phone, tablet computer, be also possible to select first embodiment or the
Other terminals of the flexible display screen of two embodiments, present embodiment are without limitation.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of flexible display panels, which is characterized in that including flexible substrates and the anode being arranged in the flexible substrates,
The anode deviates from the flexible substrates towards at least one first groove, the anode is provided on the face of the flexible substrates
Face on be provided at least one second groove.
2. flexible display panels according to claim 1, which is characterized in that first groove at least two, it is described
Second groove at least two, first groove are successively alternately arranged with second groove.
3. flexible display panels according to claim 2, which is characterized in that first groove and second groove are equal
It is arranged at equal intervals.
4. flexible display panels according to claim 3, which is characterized in that between arbitrary neighborhood two first grooves
Spacing it is equal with the spacing between arbitrary neighborhood two second grooves.
5. flexible display panels according to claim 3, which is characterized in that two neighboring first groove or adjacent two
Spacing between a second groove is anode thickness
6. flexible display panels according to claim 2, which is characterized in that adjacent first groove and described second
Spacing between groove is anode thickness
7. flexible display panels according to claim 1, which is characterized in that the width of first groove and described second
Groove it is of same size.
8. flexible display panels according to claim 7, which is characterized in that the width of first groove or described second
The width of groove is anode thickness
9. a kind of display device, which is characterized in that including flexible display panels as claimed in any one of claims 1 to 8.
10. a kind of preparation method of flexible display panels, which comprises the following steps:
Flexible substrates are provided；
Anode is formed in the flexible substrates, wherein the anode is equipped at least one towards the face of the flexible substrates
First groove, the anode are equipped at least one second groove away from the face of the flexible substrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161085.6A CN109461836A (en) | 2018-09-30 | 2018-09-30 | The preparation method of flexible display panels, display device and flexible display panels |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161085.6A CN109461836A (en) | 2018-09-30 | 2018-09-30 | The preparation method of flexible display panels, display device and flexible display panels |
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| CN109461836A true CN109461836A (en) | 2019-03-12 |
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| CN201811161085.6A Withdrawn CN109461836A (en) | 2018-09-30 | 2018-09-30 | The preparation method of flexible display panels, display device and flexible display panels |
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| CN109411628A (en) * | 2018-10-30 | 2019-03-01 | 云谷（固安）科技有限公司 | Flexible display panels and display device |
| CN112086571A (en) * | 2020-09-09 | 2020-12-15 | 武汉华星光电半导体显示技术有限公司 | Flexible display module |
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Application publication date: 20190312 |