CN110190102A - A kind of folding display panel and preparation method thereof - Google Patents
A kind of folding display panel and preparation method thereof Download PDFInfo
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- CN110190102A CN110190102A CN201910455662.0A CN201910455662A CN110190102A CN 110190102 A CN110190102 A CN 110190102A CN 201910455662 A CN201910455662 A CN 201910455662A CN 110190102 A CN110190102 A CN 110190102A
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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
- 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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- 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
- H10K50/82—Cathodes
- H10K50/822—Cathodes 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
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
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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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Abstract
This application discloses a kind of folding display panel and preparation method thereof, the production method is the following steps are included: form organic luminescent device, the organic luminescent device includes cathode；Thin-film encapsulation layer is formed on the organic luminescent device；Wherein, the display panel includes folding region, and at least partly edge of the cathode and the thin-film encapsulation layer is located in the folding region, and the cathode and the thin-film encapsulation layer are located at the curved type in edge in the folding region.The application can alleviate the stress generated in folding process to the edge of the cathode in folding region and thin-film encapsulation layer, reduce cathode and the edge of thin-film encapsulation layer after folding and cracked or lifted off risk occurs, prevent the inside of extraneous steam intrusion display panel, and guarantee the normal transmission of display panel internal signal, to strengthen the reliability of folding display panel and extend the service life of display panel.
Description
Technical field
This application involves technical field of display panel more particularly to a kind of folding display panel and preparation method thereof.
Background technique
Active matrix organic light-emitting diode (Active-matrix organic light emitting diode, letter
Claiming AMOLED) panel has self luminous characteristic, the very thin coating of organic material of use and glass substrate, when there is electric current to pass through
When, these organic materials will shine.AMOLED panel have self-luminous, visual angle is wide, color saturation is high, driving voltage is low, function
Consume that low, reaction is fast, light-weight, thickness is thin, simple structure and many merits such as at low cost, be considered as most future product it
One.
Display screen technology development is maked rapid progress, and Folding screen is the focus of public concern in recent years.Folding screen is based on flexibility
AMOLED screen technical research, have foldable, stretchable and the advantages such as is convenient for carrying.However the exploitation of Folding screen is still deposited
In many technical problems, such as the buckle resistance of reliability, material.
The film layer for the Open Mask (the biggish vapor deposition mask plate of opening) that flexible AMOLED screen production is related to is general
There is cathode layer, organic layer and inorganic layer in encapsulated layer, the corresponding panel of Open Mask opens a hole, belong to whole face vapor deposition, but
It needs to consider to encapsulate characteristic and display effect, the luminous zone of the big narrow spacing panel of aperture and the space on side is restricted.Due to cathode
Layer be in Mg/Ag metal and encapsulated layer used in inorganic layer be silicon oxynitride, cathode and encapsulated layer after screen repeatedly folds
Side is all easy to happen cracked or lifted off, can not effectively stop extraneous water oxygen invasion, influence packaging effect, and cathode ruptures
Effective transmission of signal is influenced, to influence normal display.
Summary of the invention
The embodiment of the present application provides a kind of folding display panel and preparation method thereof, is being folded with solving display panel
Cracked or lifted off technical problem easily occurs for the edge of the cathode in folding region and encapsulated layer in the process.
The embodiment of the present application provides a kind of production method of folding display panel, comprising the following steps:
Organic luminescent device is formed, the organic luminescent device includes cathode；
Thin-film encapsulation layer is formed on the organic luminescent device；
Wherein, the display panel includes folding region, at least partly margin location of the cathode and the thin-film encapsulation layer
In in the folding region, and the cathode and the thin-film encapsulation layer are located at the curved type in edge in the folding region.
Further, the formation organic luminescent device, comprising the following steps:
Light emitting functional layer is provided；
First mask plate is provided；Wherein, first mask plate is equipped with the first opening；
First mask plate and the display panel are aligned；At least partly edge and the folding of first opening
Folded area is corresponding, and the first opening curved type in edge corresponding with the folding region；
It is deposited in the light emitting functional layer by first mask plate and forms cathode；The shapes and sizes of the cathode
It is identical as first opening.
Further, the thin-film encapsulation layer includes the first inorganic layer, organic layer and the second inorganic layer；
It is described to form thin-film encapsulation layer on the organic luminescent device, comprising the following steps:
Second mask plate, third mask plate and the 4th mask plate are provided；Wherein, second mask plate is equipped with second and opens
Mouthful, the third mask plate is open equipped with third, and the 4th mask plate is equipped with the 4th opening；
Second mask plate, third mask plate and the 4th mask plate are aligned with the display panel respectively；Described
At least partly edge of two openings, third opening and the 4th opening is corresponding with the folding region, and second opening, third are opened
Mouth and the 4th opening curved type in edge corresponding with the folding region；
It is deposited on the organic luminescent device by second mask plate and forms the first inorganic layer；Wherein, described
The shapes and sizes of one inorganic layer are identical as second opening；
It is deposited on first inorganic layer by the third mask plate and forms organic layer；Wherein, the organic layer
Shapes and sizes are identical as the third opening；
It is deposited on the organic layer and the first inorganic layer by the 4th mask plate and forms the second inorganic layer；Wherein,
The shapes and sizes of second inorganic layer are identical as the 4th opening.
Further, the shaped form includes undaform.
The embodiment of the present application also provides a kind of folding display panel, including organic luminescent device and it is covered on institute
State the thin-film encapsulation layer on organic luminescent device；The organic luminescent device includes cathode；Wherein, the display panel includes folding
At least partly edge of folded area, the cathode and the thin-film encapsulation layer is located in the folding region, and the cathode and described
Thin-film encapsulation layer is located at the curved type in edge in the folding region.
Optionally, the thin-film encapsulation layer includes the first inorganic layer being successively set on the organic luminescent device, has
Machine layer and the second inorganic layer；At least partly edge of first inorganic layer, organic layer and the second inorganic layer is located at the folding
In area, and first inorganic layer, organic layer and the second inorganic layer are located at the curved type in edge of the folding region.
Optionally, the shaped form includes undaform.
Optionally, the cathode is deposited to be formed by the first mask plate；First mask plate is equipped with the first opening, institute
After stating the first mask plate and display panel contraposition, at least partly edge of first opening is corresponding with the folding region,
And corresponding with the folding region curved type in edge of first opening；The shapes and sizes of the cathode are opened with described first
Mouth is identical.
Optionally, first inorganic layer, organic layer and the second inorganic layer pass through the second mask plate, third mask plate respectively
It is deposited to be formed with the 4th mask plate；
Second mask plate is equipped with the second opening, and the third mask plate is open equipped with third, and the described 4th covers
Film version is equipped with the 4th opening；Second mask plate, third mask plate and the 4th mask plate respectively with the display panel pair
Behind position, at least partly edge of second opening, third opening and the 4th opening is corresponding with the folding region, and described second
Opening, third opening and the 4th opening curved type in edge corresponding with the folding region；
The shapes and sizes of first inorganic layer, organic layer and the second inorganic layer respectively with corresponding second opening, the
Three openings are identical with the 4th opening.
Optionally, the display panel further includes flexible base board and thin film transistor array layer, and the flexible base board is located at
Side of the organic luminescent device far from the thin-film encapsulation layer, the thin film transistor array layer are located at the flexible base board
Between organic luminescent device, the thin film transistor array layer includes multiple spaced barrier layers, and multiple barrier layers are enclosed
It is arranged around the cathode and organic layer；
First inorganic layer is covered on the cathode and multiple barrier layers of the organic luminescent device；The organic layer covers
It covers on the first inorganic layer, and frontal projected area of the organic layer on the flexible base board is greater than the cathode described soft
Frontal projected area on property substrate；Second inorganic layer is covered on the organic layer and first inorganic layer.
The application's has the beneficial effect that in the application, the side of cathode and thin-film encapsulation layer in the folding region of display panel
Edge is shaped form, can alleviate the stress generated in folding process to the edge of the cathode in folding region and thin-film encapsulation layer,
The edge bend resistance ability for reinforcing the cathode and thin-film encapsulation layer in folding region, reduces the side of cathode and thin-film encapsulation layer after folding
Cracked or lifted off risk occurs for edge, prevents the inside of extraneous steam intrusion display panel, and guarantees letter inside display panel
Number normal transmission, to strengthen the reliability of folding display panel and extend the service life of display panel；Yin
The mask plate that an opening is respectively adopted in pole and thin-film encapsulation layer carries out whole face vapor deposition and is made, the side of the opening of each mask plate
The bent area that edge corresponds to display panel is set as shaped form, so that the edge of cathode obtained and thin-film encapsulation layer in bent area
For shaped form, the stress generated in folding process to the edge of the cathode in folding region and thin-film encapsulation layer can be alleviated, added
The edge bend resistance ability of cathode and thin-film encapsulation layer in strong folding region, reduces the edge of cathode and thin-film encapsulation layer after folding
Cracked or lifted off risk occurs.
Detailed description of the invention
With reference to the accompanying drawing, it is described in detail by the specific embodiment to the application, the technical solution of the application will be made
And other beneficial effects are apparent.
Fig. 1 is a kind of schematic process flow diagram of the production method of folding display panel provided by the embodiments of the present application；
Fig. 2 is a kind of present invention looks up structural representation of folding display panel provided by the embodiments of the present application；
Fig. 3 is the process schematic block of the production method of the folding display panel of another kind provided by the embodiments of the present application
Figure；
Fig. 4 is the process schematic block of the production method of the folding display panel of another kind provided by the embodiments of the present application
Figure；
Fig. 5 is the structural schematic diagram of mask plate provided by the embodiments of the present application；
Fig. 6 is the cross section structure schematic diagram of the part A-A ' in Fig. 2.
Specific embodiment
Specific structure and function details disclosed herein are only representative, and are for describing showing for the application
The purpose of example property embodiment.But the application can be implemented by many alternative forms, and be not interpreted as
It is limited only by the embodiments set forth herein.
In the description of the present application, it is to be understood that term " center ", " transverse direction ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, art
Language " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute
The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include one
Or more this feature.In the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or more.
In addition, term " includes " and its any deformation, it is intended that cover and non-exclusive include.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in application.
Term used herein above is not intended to limit exemplary embodiment just for the sake of description specific embodiment.Unless
Context clearly refers else, otherwise singular used herein above "one", " one " also attempt to include plural number.Also answer
When understanding, term " includes " and/or "comprising" used herein above provide stated feature, integer, step, operation,
The presence of unit and/or component, and do not preclude the presence or addition of other one or more features, integer, step, operation, unit,
Component and/or combination thereof.
The application is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, the embodiment of the present application provides a kind of production method of folding display panel, including following step
It is rapid:
S101: organic luminescent device is formed, organic luminescent device includes cathode；
S102: thin-film encapsulation layer is formed on organic luminescent device；Wherein, display panel includes folding region, cathode and thin
At least partly edge of film encapsulated layer is located in folding region, and the edge that cathode and thin-film encapsulation layer are located in folding region is curved
Type.
Specifically, as shown in Fig. 2, display panel 1 includes folding region 5, the cathode 3 of display panel 1 and thin-film encapsulation layer 4
At least partly edge is located in folding region 5, and cathode 3 and thin-film encapsulation layer 4 are located at the curved type in edge in folding region 5.It is aobvious
Show the cathode 3 that panel 1 can carry out different degrees of folding by folding region 5, during folding, in folding region 5
It can be also folded with thin-film encapsulation layer 4；It includes waveform curve that cathode 3 and thin-film encapsulation layer 4, which are located at the edge in folding region 5,
Side, the concrete shape of certain shaped form are not limited to the present embodiment middle offer.
In the present embodiment, the edge of cathode 3 and thin-film encapsulation layer 4 in the folding region 5 of display panel 1 is shaped form, can
To alleviate the stress generated in folding process to the edge of cathode 3 and thin-film encapsulation layer 4 in folding region 5, reinforce folding region 5
The bend resistance ability at the edge of interior cathode 3 and thin-film encapsulation layer 4 reduces cathode 3 and the edge of thin-film encapsulation layer 4 hair after folding
Raw cracked or lifted off risk, prevents the inside of extraneous steam intrusion display panel 1, and guarantees 1 internal signal of display panel
Normal transmission, to strengthen the reliability of folding display panel 1 and extend the service life of display panel 1.
As shown in Figures 1 to 6, the embodiment of the present application also provides a kind of production method of folding display panel, with
Above-described embodiment is different to be, as shown in fig. 6, the organic luminescent device 2 of display panel 1 includes light emitting functional layer 6 and cathode
3, as shown in figure 3, step S101 specifically includes the following steps:
S301: light emitting functional layer is provided；
S302: the first mask plate is provided；Wherein, the first mask plate is equipped with the first opening；
S303: the first mask plate and display panel are aligned；At least partly edge of first opening is corresponding with folding region, and
The first opening curved type in edge corresponding with folding region；
S304: it is deposited in light emitting functional layer by the first mask plate and forms cathode；The shapes and sizes of cathode and first
It is open identical.
Specifically, at least partly edge of cathode 3 formed is located in folding region 5, and cathode 3 is located at the side in folding region 5
The curved type of edge.
The present embodiment is optional, as shown in fig. 6, thin-film encapsulation layer 4 includes the first inorganic layer 9, organic layer 10 and the second nothing
Machine layer 11；As shown in figure 4, in step S102, on organic luminescent device form thin-film encapsulation layer specifically includes the following steps:
S401: the second mask plate, third mask plate and the 4th mask plate are provided；Wherein, the second mask plate is equipped with second
Opening, third mask plate are open equipped with third, and the 4th mask plate is equipped with the 4th opening；
S402: the second mask plate and display panel are aligned；At least partly edge of second opening is corresponding with folding region, and
The second opening curved type in edge corresponding with folding region；
S403: it is deposited on organic luminescent device by the second mask plate and forms the first inorganic layer；Wherein, the first inorganic layer
Shapes and sizes it is identical as the second opening；
S404: third mask plate and display panel are aligned；At least partly edge of third opening is corresponding with folding region, and
The third opening curved type in edge corresponding with folding region；
S405: it is deposited on the first inorganic layer by third mask plate and forms organic layer；Wherein, the shape of organic layer and big
It is small identical as third opening；
S406: the 4th mask plate and display panel are aligned；At least partly edge of 4th opening is corresponding with folding region, and
The 4th opening curved type in edge corresponding with folding region；
S407: it is deposited on organic layer and the first inorganic layer by the 4th mask plate and forms the second inorganic layer；Wherein, second
The shapes and sizes of inorganic layer are identical as the 4th opening.
Specifically, at least portion of the first inorganic layer 9 of the thin-film encapsulation layer 4 formed, organic layer 10 and the second inorganic layer 11
Edge is divided to be located in folding region 5, and the edge that the first inorganic layer 9, organic layer 10 and the second inorganic layer 11 are located in folding region 5 is in
Shaped form.
In the present embodiment, the first inorganic layer 9, organic layer 10 and the second inorganic layer 11 of cathode 3 and thin-film encapsulation layer 4 are located at
The wavy curve in edge in folding region 5, the concrete shape of certain shaped form are without being limited thereto.Cathode 3 and thin-film encapsulation layer 4
The first mask plate 7, the second mask plate 12, third mask plate is respectively adopted in first inorganic layer 9, organic layer 10 and the second inorganic layer 11
14 and the 4th mask plate 16 (since the difference of the first mask plate, the second mask plate, third mask plate and the 4th mask plate is out
Mouthful size and shape, the unified structure for illustrating aforementioned four mask plate with Fig. 5 in the embodiment of the present application) carries out whole face vapor deposition and makes
?；Each mask plate is designed with an opening, and each be open corresponds to the curved type in edge of the folding region 5 of display panel 1, so that
The edge of cathode 3 obtained and the first inorganic layer 9, organic layer 10 and the second inorganic layer 11 of thin-film encapsulation layer 4 in folding region 5
Curved type can be alleviated in folding process to each layer of side of cathode 3 and thin-film encapsulation layer 4 in folding region 5
The stress that edge generates reinforces each layer of edge bend resistance ability of the cathode 3 and thin-film encapsulation layer 4 in folding region 5, reduces folding
Cracked or lifted off risk occurs for poststack cathode 3 and each layer of edge of thin-film encapsulation layer 4.
As shown in Figure 2 and Figure 6, the embodiment of the present application also provides a kind of folding display panels 1, including organic light emission
Device 2 and the thin-film encapsulation layer 4 being covered on organic luminescent device 2；Organic luminescent device 2 includes cathode 3；Wherein, it shows
Panel 1 includes folding region 5, and at least partly edge of cathode 3 and thin-film encapsulation layer 4 is located in folding region 5, and cathode 3 and film
Encapsulated layer 4 is located at the curved type in edge in folding region 5.
Specifically, organic luminescent device 2 further includes light emitting functional layer 6, to luminescence display pattern, cathode 3 is covered on hair
In light functional layer 6；Display panel 1 includes viewing area (luminous zone), and 3 whole face of cathode is covered on viewing area, and the edge of cathode 3 is super
The edge of viewing area out, i.e. frontal projected area of the cathode 3 on display panel 1 are greater than the area of viewing area；Display panel 1 can be with
Fold by folding region 5 and forms multiple sub- viewing areas；In addition, the covering of 4 whole face of thin-film encapsulation layer is on the cathode 3, and film
The edge of encapsulated layer 4 exceeds the edge of cathode 3, i.e. frontal projected area of the thin-film encapsulation layer 4 on display panel 1 is greater than cathode 3
Frontal projected area on display panel 1, thin-film encapsulation layer 4 can effectively play packaging effect, protect cathode 3, prevent outer
Steam invasion in boundary's influences the performance of display panel 1.
In the present embodiment, the edge of cathode 3 and thin-film encapsulation layer 4 in the folding region 5 of display panel 1 is shaped form, can
To alleviate the stress generated in folding process to the edge of the cathode 3 in folding region 5 and thin-film encapsulation layer 4, reinforce folding region 5
The edge bend resistance ability of interior cathode 3 and thin-film encapsulation layer 4 reduces cathode 3 and the edge of thin-film encapsulation layer 4 after folding and occurs
Cracked or lifted off risk, prevents the inside of extraneous steam intrusion display panel 1, and guarantees 1 internal signal of display panel
Normal transmission, to strengthen the reliability of folding display panel 1 and extend the service life of display panel 1.
The present embodiment is optional, as shown in fig. 6, thin-film encapsulation layer 4 includes the be successively set on organic luminescent device 2
One inorganic layer 9, organic layer 10 and the second inorganic layer 11；First inorganic layer 9, organic layer 10 and the second inorganic layer 11 are at least partly
Edge is located in folding region 5, and the first inorganic layer 9, organic layer 10 and the second inorganic layer 11 be located at folding region 5 edge it is curved
Type.
Specifically, the covering of the first inorganic layer 9 is on the cathode 3, prevent extraneous steam from intruding into the viewing area of display panel 1
Influence the performance of display panel 1；Organic layer 10 is covered on the first inorganic layer 9, plays buffer function, protects cathode 3；Second nothing
Machine layer 11 is covered on organic layer 10, is protected organic layer 10 and is prevented extraneous steam from invading.
In the present embodiment, the first inorganic layer 9, organic layer 10 and the second inorganic layer 11 of thin-film encapsulation layer 4 are in folding region 5
The curved type in edge, can alleviate in folding process in folding region 54 each layers of thin-film encapsulation layer of edge generate
Stress, reinforce folding region 5 in 4 each layers of thin-film encapsulation layer of edge bend resistance ability, reduce fold rear film encapsulated layer 4
Cracked or lifted off risk occurs for each layer of edge.
The present embodiment is optional, and shaped form includes undaform.In the present embodiment, the cathode 3 and thin-film encapsulation layer of folding region 5
The 4 all wavy curve in each layer of edge, increases the area at the edge of cathode 3 and thin-film encapsulation layer 4, so that bending
The stress that edge is subject in the process is dispersed, and is reduced cathode 3 and each layer of edge of thin-film encapsulation layer 4 after folding and is ruptured
Or the risk of removing.
The present embodiment is optional, as shown in figure 5, cathode 3 is formed by the first mask plate 7 vapor deposition；It is set on first mask plate 7
After having the first opening 8, the first mask plate 7 to align with display panel 1, at least partly edge and folding region 5 of the first opening 8 are right
It answers, and the first 8 curved types in edge corresponding with folding region 5 of opening；The shapes and sizes of cathode 3 are identical as the first opening 8.
In the present embodiment, the curved type in edge of the corresponding folding region 5 of the first opening 8 of the first mask plate 7, the shape of cathode 3
Shape and size are identical as the size and shape of corresponding first opening 8, so that cathode obtained 3 is in song at the edge of folding region 5
Line style effectively alleviates the stress that edge is subject in bending of cathode 3.
The present embodiment is optional, and the first inorganic layer 9, organic layer 10 and the second inorganic layer 11 pass through the second mask plate respectively
12, third mask plate 14 and the 4th mask plate 16 are (due to the first mask plate, the second mask plate, third mask plate and the 4th exposure mask
The difference of version is the size and shape being open, the unified structure for illustrating aforementioned four mask plate with Fig. 5 in the embodiment of the present application)
Vapor deposition is formed；Second mask plate 12 is equipped with the second opening 13, and third mask plate 14 is equipped with third opening 15, the 4th mask plate
16 are equipped with the 4th opening 17；Second mask plate 12, third mask plate 14 and the 4th mask plate 16 are aligned with display panel 1 respectively
Afterwards, at least partly edge of the second opening 13, third opening 15 and the 4th opening 17 is corresponding with folding region 5, and the second opening 13,
Third opening 15 and the 4th 17 curved types in edge corresponding with folding region 5 of opening；First inorganic layer 9, organic layer 10 and second
The shapes and sizes of inorganic layer 11 are identical as corresponding second opening 13, third opening 15 and the 4th opening 17 respectively.
In the present embodiment, the first inorganic layer 9, organic layer 10 and the second inorganic layer 11 of thin-film encapsulation layer 4 pass through corresponding
Second mask plate 12, third mask plate 14 and the 4th mask plate 16 are made, and the second opening 13, third opening 15 and the 4th opening
The curved type in edge of 17 corresponding folding regions 5；The shapes and sizes of first inorganic layer 9, organic layer 10 and the second inorganic layer 11 point
It is identical as the size and shape of corresponding second opening 13, third opening 15 and the 4th opening 17, make obtained first inorganic
Layer 9, organic layer 10 and the second inorganic layer 11 effectively alleviate the first inorganic layer 9, have in the curved type in edge of folding region 5
Machine layer 10 and the second inorganic layer 11 stress that edge is subject in bending.
The present embodiment is optional, as shown in fig. 6, display panel 1 further includes flexible base board 18 and thin film transistor array layer
19, flexible base board 18 is located at side of the organic luminescent device 2 far from thin-film encapsulation layer 4, and thin film transistor array layer 19 is located at soft
Property substrate 18 and organic luminescent device 2 between, thin film transistor array layer 19 include multiple spaced barrier layers 20, it is multiple
Barrier layer 20 is arranged around cathode 3 and organic layer 10；First inorganic layer 9 be covered on organic luminescent device 2 cathode 3 and multiple resistances
In barrier 20；Organic layer 10 is covered on the first inorganic layer 9, and frontal projected area of the organic layer 10 on flexible base board 18 is greater than
Frontal projected area of the cathode 3 on flexible base board 18；Second inorganic layer 11 is covered on organic layer 10 and the first inorganic layer 9.
Specifically, thin film transistor array layer 19 further includes the buffer layer being successively set on flexible base board 18, the first gold medal
Belong to layer, second metal layer, flatness layer, anode and pixel defining layer (not indicating in figure)；Multiple barrier layers 20 are covered on anode
On, and barrier layer 20 can be formed with pixel defining layer with processing procedure, can also be formed with flatness layer with processing procedure；Organic luminescent device
2 light emitting functional layer 6 is covered on anode and partial pixel definition layer.
In the present embodiment, the first inorganic layer 9 is covered on cathode 3 and multiple barrier layers 20, for preventing extraneous steam
Intrude into the performance of the internal influence display panel 1 of display panel 1；Organic layer 10 is covered on the first inorganic layer 9, and is hidden completely
Cathode 3 is kept off, to protect cathode 3 and light emitting functional layer 6, in addition, the edge of organic layer 10 is located at barrier layer 20 close to display
The side in area avoids the edge that organic layer 10 overflows the first inorganic layer 9 and the second inorganic layer 11；First inorganic layer 9 is covered on
On multiple barrier layers 20, the second inorganic layer 11 is covered on organic layer 10 and the first inorganic layer 9, plays the work of protection organic layer 10
With, and effectively prevent extraneous steam from intruding into the inside of display panel 1；The present embodiment effectively protects display panel 1
Internal structure, ensure that the display performance of display panel 1, extend the service life of display panel 1.
Although above preferred embodiment is not to limit in conclusion the application is disclosed above with preferred embodiment
The application processed, those skilled in the art are not departing from spirit and scope, can make various changes and profit
Decorations, therefore the protection scope of the application subjects to the scope of the claims.
Claims (10)
1. a kind of production method of folding display panel, which comprises the following steps:
Organic luminescent device is formed, the organic luminescent device includes cathode；
Thin-film encapsulation layer is formed on the organic luminescent device；
Wherein, the display panel includes folding region, and at least partly edge of the cathode and the thin-film encapsulation layer is located at institute
It states in folding region, and the cathode and the thin-film encapsulation layer are located at the curved type in edge in the folding region.
2. the production method of folding display panel as described in claim 1, which is characterized in that the formation organic light emission
Device, comprising the following steps:
Light emitting functional layer is provided；
First mask plate is provided；Wherein, first mask plate is equipped with the first opening；
First mask plate and the display panel are aligned；At least partly edge and the folding region of first opening
It is corresponding, and the first opening curved type in edge corresponding with the folding region；
It is deposited in the light emitting functional layer by first mask plate and forms cathode；The shapes and sizes of the cathode and institute
It is identical to state the first opening.
3. the production method of folding display panel as described in claim 1, which is characterized in that the thin-film encapsulation layer packet
Include the first inorganic layer, organic layer and the second inorganic layer；
It is described to form thin-film encapsulation layer on the organic luminescent device, comprising the following steps:
Second mask plate, third mask plate and the 4th mask plate are provided；Wherein, second mask plate is equipped with the second opening,
The third mask plate is open equipped with third, and the 4th mask plate is equipped with the 4th opening；
Second mask plate, third mask plate and the 4th mask plate are aligned with the display panel respectively；Described second opens
Mouthful, third opening and the 4th opening at least partly edge it is corresponding with the folding region, and it is described second be open, third be open and
The 4th opening curved type in edge corresponding with the folding region；
It is deposited on the organic luminescent device by second mask plate and forms the first inorganic layer；Wherein, first nothing
The shapes and sizes of machine layer are identical as second opening；
It is deposited on first inorganic layer by the third mask plate and forms organic layer；Wherein, the shape of the organic layer
It is identical as the third opening with size；
It is deposited on the organic layer and the first inorganic layer by the 4th mask plate and forms the second inorganic layer；Wherein, described
The shapes and sizes of second inorganic layer are identical as the 4th opening.
4. the production method of folding display panel as described in any one of claims 1 to 3, which is characterized in that the song
Line style includes undaform.
5. a kind of folding display panel, which is characterized in that including organic luminescent device and be covered on the organic light emission
Thin-film encapsulation layer on device；The organic luminescent device includes cathode；Wherein, the display panel includes folding region, described
Cathode and at least partly edge of the thin-film encapsulation layer are located in the folding region, and the cathode and the thin-film encapsulation layer
The curved type in edge in the folding region.
6. folding display panel as claimed in claim 5, which is characterized in that the thin-film encapsulation layer includes setting gradually
The first inorganic layer, organic layer and the second inorganic layer on the organic luminescent device；First inorganic layer, organic layer and
At least partly edge of two inorganic layers is located in the folding region, and first inorganic layer, organic layer and the second inorganic layer position
The curved type in edge in the folding region.
7. such as folding display panel described in claim 5 or 6, which is characterized in that the shaped form includes undaform.
8. folding display panel as claimed in claim 5, which is characterized in that the cathode is deposited by the first mask plate
It is formed；First mask plate is equipped with the first opening, after first mask plate and the display panel align, described first
At least partly edge of opening is corresponding with the folding region, and first opening edge corresponding with the folding region is curved
Type；The shapes and sizes of the cathode are identical as first opening.
9. folding display panel as claimed in claim 6, which is characterized in that first inorganic layer, organic layer and the
Two inorganic layers pass through the second mask plate, third mask plate and the 4th mask plate respectively and are deposited to be formed；
Second mask plate is equipped with the second opening, and the third mask plate is open equipped with third, the 4th mask plate
It is equipped with the 4th opening；Second mask plate, third mask plate and the 4th mask plate respectively and the display panel contraposition after,
At least partly edge of second opening, third opening and the 4th opening is corresponding with the folding region, and second opening,
Third opening and the 4th opening curved type in edge corresponding with the folding region；
The shapes and sizes of first inorganic layer, organic layer and the second inorganic layer are opened with corresponding second opening, third respectively
Mouth is identical with the 4th opening.
10. folding display panel as claimed in claim 6, which is characterized in that the display panel further includes flexible base
Plate and thin film transistor array layer, the flexible base board are located at one of the organic luminescent device far from the thin-film encapsulation layer
Side, the thin film transistor array layer is between the flexible base board and organic luminescent device, the thin film transistor (TFT) array
Layer includes multiple spaced barrier layers, and multiple barrier layers are arranged around the cathode and organic layer；
First inorganic layer is covered on the cathode and multiple barrier layers of the organic luminescent device；The organic layer is covered on
On first inorganic layer, and frontal projected area of the organic layer on the flexible base board is greater than the cathode in the flexible base
Frontal projected area on plate；Second inorganic layer is covered on the organic layer and first inorganic layer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910455662.0A CN110190102A (en) | 2019-05-29 | 2019-05-29 | A kind of folding display panel and preparation method thereof |
| PCT/CN2019/106025 WO2020237911A1 (en) | 2019-05-29 | 2019-09-16 | Foldable display panel and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910455662.0A CN110190102A (en) | 2019-05-29 | 2019-05-29 | A kind of folding display panel and preparation method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910455662.0A Pending CN110190102A (en) | 2019-05-29 | 2019-05-29 | A kind of folding display panel and preparation method thereof |
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| WO (1) | WO2020237911A1 (en) |
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| CN112968138A (en) * | 2021-02-05 | 2021-06-15 | 厦门天马微电子有限公司 | Display panel and display device |
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| WO2020237911A1 (en) | 2020-12-03 |
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