CN106920826B - A kind of flexible display panels, its production method and display device - Google Patents
A kind of flexible display panels, its production method and display device Download PDFInfo
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- CN106920826B CN106920826B CN201710108745.3A CN201710108745A CN106920826B CN 106920826 B CN106920826 B CN 106920826B CN 201710108745 A CN201710108745 A CN 201710108745A CN 106920826 B CN106920826 B CN 106920826B
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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
- 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
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/311—Flexible OLED
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Abstract
The present invention relates to a kind of flexible display panels, its production method and display devices, and to solve existing flexible display panels after having hard object to collide with, internal film layer is also easy to produce crackle, the problem for causing display abnormal.The flexible display panels include: flexible base board, and each functional film layer on flexible substrates and at least one support column is arranged；There is multilayer organic layer, and support column is arranged at least one layer of organic layer in each functional film layer；The non-pixel light emission region of flexible display panels is arranged in support column；The material hardness of each support column is greater than the material hardness of the organic layer where support column, and height is no more than the thickness of the organic layer where support column.The present invention is provided with the support column that height is not more than the thickness of organic layer where it in the non-pixel light emission region of organic layer, thus not only will affect the thickness of the normal display and organic layer of display panel；It is being also possible to prevent hard object and is colliding with to crack internal film layer simultaneously, and then improving the anti-ability collided with of display panel.
Description
Technical field
The present invention relates to display base plate technical field more particularly to a kind of flexible display panels, its production method and display
Device.
Background technique
Flexible display, used PHOLED (Phosphorescent Organic Light-Emitting Diode,
Phosphorescent Organic Light Emitting Diode) technology, there is low-power consumption, direct visual flexible panel is made, changeable type of soft material
Flexible display device obtains more and more wide application in our life.Flexible electronic device is especially flexible
Display panel, frivolous with its, flexible or even fold, the features such as good mechanical property, is increasingly valued by people.However, existing
Some flexible display panels can't cover rigid glass cover-plate, therefore after having hard object to collide with, and internal film layer is easy to
It cracks, to cause display abnormal.
In conclusion existing flexible display panels, after having hard object to collide with, internal film layer is easy to crack, from
And cause display abnormal.
Summary of the invention
It is existing to solve the object of the present invention is to provide a kind of flexible display panels, its production method and display device
Flexible display panels after thering is hard object to collide with, internal film layer is easy to crack, thus the problem for causing display abnormal.
The embodiment of the invention provides a kind of flexible display panels, have display area and frame region, the viewing area
Domain is provided with multiple pixel units arranged in arrays, and each pixel unit includes at least one sub-pixel；The flexibility
Display panel includes: flexible base board, and each functional film layer on the flexible base board and at least one support column is arranged in；Wherein,
There is multilayer organic layer, and support column setting is at least one layer of organic layer in each functional film layer
In；
The non-pixel light emission region of the flexible display panels, the non-pixel light emission region packet is arranged in the support column
Include the region between the adjacent sub-pixel and the frame region；
The material hardness of each support column is greater than the material hardness of the organic layer where the support column, and each institute
State thickness of the height no more than the organic layer where the support column of support column.
The embodiment of the invention also provides a kind of display device, which includes provided in an embodiment of the present invention above-mentioned
Flexible display panels.
The embodiment of the invention also provides a kind of production sides such as above-mentioned flexible display panels provided in an embodiment of the present invention
Method, this method comprises:
Each functional film layer is sequentially formed on flexible substrates, and there is multilayer organic layer in each functional film layer；And
At least one support column is formed at least one layer of organic layer；
Wherein, the hardness of each support column material is greater than the hardness of the organic layer material where the support column,
And the height of each support column is no more than the thickness of the organic layer where the support column.
The present invention has the beneficial effect that:
The embodiment of the invention provides a kind of flexible display panels, its production method and display devices, are shown by optimization
The structure of panel itself film layer is provided at least one support column, setting at least one layer of organic layer in each functional film layer
Region or frame region of the support column between adjacent subpixels, and height is no more than the thickness of the organic layer where it
Degree, thus not only will affect the normal display of display panel, the thickness of organic layer will not be influenced；In addition, increasing support column
The display panel of structure, the material hardness of the organic layer as where the material hardness of support column is greater than the support column, thus
When having hard object to collide with, support column can effectively provide certain support force, and preventing hard object from colliding with cracks internal film layer,
And then improve the anti-ability collided with of display panel.
Detailed description of the invention
Fig. 1 a is a kind of overlooking structure diagram of flexible display panels provided in an embodiment of the present invention；
Fig. 1 b is a kind of cross section structure schematic diagram of flexible display panels provided in an embodiment of the present invention
Fig. 2 a- Fig. 2 c is that the structural schematic diagram in one layer of organic layer is arranged in support column provided in an embodiment of the present invention；
Fig. 3 a- Fig. 3 g is that the structural schematic diagram in multilayer organic layer is arranged in support column provided in an embodiment of the present invention；
Fig. 4 is the step flow chart of the production method of flexible display panels provided in an embodiment of the present invention；
Fig. 5 a- Fig. 5 b be respectively it is provided in an embodiment of the present invention when making flexible display panels using InkJet printing processes
Form the structural schematic diagram after each step executes in the method for support column；
Fig. 6 a- Fig. 6 c be respectively it is provided in an embodiment of the present invention when making flexible display panels using lithographic etch process
Form the structural schematic diagram after each step executes in the method for support column.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, is not whole embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
The thickness of each film layer and shape do not reflect the actual proportions of array substrate in attached drawing, and purpose is schematically illustrate hair
Bright content.
A kind of flexible display panels provided in an embodiment of the present invention are set at least one layer of organic layer in each functional film layer
Support column arrangement has been set, can be adapted for any type of flexible display panels, primarily directed to OLED (Organic Light-
Emitting Diode, Organic Light Emitting Diode) display panel.Since the material hardness of the support column of setting is greater than the support column
The material hardness of the organic layer at place, thus when there is hard object to collide with, support column can effectively provide certain support force, prevent
Only hard object, which collides with, cracks internal film layer, and then improves the anti-ability collided with of display panel.Below to Flexible Displays face
The specific structure of plate is described in detail.
As shown in Figure 1a, a kind of flexible display panels provided in an embodiment of the present invention, for convenience of explanation, the present invention are implemented
4 × 4 pixel units are only drawn in example, Fig. 1 a is only simply illustrative figure, is not limited in 4 × 4 pixels in actual fabrication
Unit, and each sub-pixel in pixel unit can also be there are many different arrangement modes, the present invention is only with one of which
Common arrangement mode is illustrated as an example.
Flexible display panels provided in an embodiment of the present invention have display area A, and around the rim area of display area A
Domain B；Display area A is provided with multiple pixel unit C arranged in arrays, and each pixel unit includes at least three sub-pixels
C’。
It as shown in Figure 1 b, is the schematic cross-section of flexible display panels provided in an embodiment of the present invention；The Flexible Displays face
Plate includes: flexible base board 10, and each functional film layer 11 on flexible base board 10 and at least one support column 12 is arranged in；In addition, also
Including OLED luminescent device, and OLED luminescent device be formed in TFT (Thin Film Transistor, thin film transistor (TFT)) it
On, wherein OLED luminescent device includes anode 111, luminescent layer 112, cathode 113 and around the edge of anode 111 to limit
The pixel defining layer 114 of the light emitting region of each sub-pixel C ', the region where the pixel defining layer 114 is non-luminous area
Domain D, the region is between adjacent sub-pixel C '.
Wherein, there is multilayer organic layer, and support column 12 is arranged at least one layer of organic layer in each functional film layer 11；Branch
The non-pixel light emission region of flexible display panels is arranged in dagger, and non-pixel light emission region includes between adjacent sub-pixel C '
Region D and frame region B (are not drawn into, referring to Fig. 1 a) in Fig. 1 b；The material hardness of each support column 12 is greater than where support column 12
Organic layer material hardness, and the height of each support column 12 is no more than the thickness of the organic layer where support column 12.
Specifically, the flexible display panels of the embodiment of the present invention are provided with each functional film layer 11 on flexible base board 10,
In each functional film layer 11 specific structure for including, it is identical as structure in the prior art, it is not limited here, in the embodiment of the present invention
All attached drawings, be only introduced by taking a kind of structure of feasible flexible display panels as an example, but do not represent the present invention
The flexible display panels of embodiment only have a kind of this structure, can also expand to the Flexible Displays of other structures according to actual needs
In panel.
In the specific implementation, due to having multilayer organic layer in above-mentioned each functional film layer 11, and hard object collides with flexibility
When display panel, organic layer is easier to that deformation occurs, and the active force that hard object collides with is easy to apply on inorganic layer or luminescent layer, makes it
It cracks, thus the increased support column 12 of the embodiment of the present invention, at least one layer being mainly disposed in each functional film layer 11 have
In machine layer, certain supporting role is played, and is specifically to be arranged in any one or more layers organic layer, can according to need and set
It sets, and the position of support column 12 can be represented there are many situation, in Fig. 1 b, only depict and sealing support column setting
Fill the situation in the organic film of layer, behind the various situations in other film layers can be set to support column describe in detail.
Wherein, Fig. 1 b is only partial cross section structural schematic diagram, in figure and is not drawn into frame region B, and be arranged in frame
The support column of region B, Position Approximate may refer to Fig. 1 a, and the circle of dotted line represents the position where support column projection in Fig. 1 a,
In order to not influence the aperture opening ratio of flexible display panels, the region D between adjacent sub-pixel C ', the area is can be set in support column
Domain D does not shine, thus will not influence the normal display of flexible display panels；Or due to some organic layers in addition to setting exists
Outside display area, it can also be set as needed in frame region B, thus corresponding support column also can be set in organic layer
In frame region B, as shown in Figure 1a, the setting of support column will not influence the normal display of flexible display panels at this time.
In the specific implementation, in order to make support column preferably play a supporting role, in addition to needing to be disposed at organic layer
Except, it is also necessary to the biggish material of hardness is chosen to make support column, i.e., the material hardness of each support column 12 is greater than support column 12
The material hardness of the organic layer at place.For example, the material hardness of general common each organic layer is 3Gpa-5Gpa, and choose
The material hardness of support column is not less than 10Gpa.
In addition, in production, setting little for the height of each support column 12 in order not to additionally increase the thickness of organic layer
In the thickness of the organic layer where support column 12.And the height being specifically arranged then depends on the material of support column, behind will do it
It is discussed in detail.Due to flexible display panels provided in an embodiment of the present invention, support column arrangement is increased in organic layer, and is supported
The material hardness of column is greater than the material hardness of the organic layer where the support column, thus when there is hard object to collide with, support column can be with
Certain support force is effectively provided, preventing hard object from colliding with cracks internal film layer (such as inorganic layer and luminescent layer), into
And improve the anti-ability collided with of display panel.
It should be noted that in order to clearly represent the position of support column, in all attached drawings of the embodiment of the present invention
A support column has been drawn in the two sides of luminescent layer 112, but actually in production, in order to not influence shining for flexible display panels
Effect, it is preferred that support column is arranged between adjacent pixel unit, and shares a support by multiple pixel units
Column, as shown in Figure 1a, arrangement density when specific support column is arranged, behind will do it and be discussed in detail.
In the specific implementation, the support column being arranged in flexible display panels, which can according to need, is set as one or more
It is a, and when being provided with multiple support columns, it can also be set as needed in one layer or multilayer organic layer, as shown in Figure 1 b,
There is multilayer organic layer, including at least in planarization layer 115, pixel defining layer 114, encapsulated layer 116 in each functional film layer 11
Organic film 1161 and adhesion coating 118 for attaching protective film 117.Below according to support column setting organic layer the number of plies,
It is introduced from support column setting in one layer and two kinds of situations of multilayer organic layer.
The first situation: support column is arranged in one layer of organic layer.
As shown in Figure 1 b, specifically, support column 12 is provided only in one layer of organic layer；Support column 12 is arranged in planarization layer
115, in pixel defining layer 114, the organic film 1161 in encapsulated layer 116 and the adhesion coating 118 for attaching protective film 117
Among any one tunic layer.
When support column is provided only in one layer of organic layer, the quantity of support column can be one or more, and
With the region being arranged between adjacent sub-pixel, it also can be set in frame region, make to make it play preferably support
With, and bigger range can be protected, it is average in general display area A to share a support column (below by several pixel units
It will do it and be discussed in detail).
As shown in Figure 1 b, the situation in the organic film in encapsulated layer is provided only on for support column.It is encapsulated layer in Fig. 1 b
It only include the schematic diagram of one layer of organic film, i.e., encapsulated layer 116 includes two layers of the inorganic film 1162 being stacked, and setting
One layer of organic film 1161 between adjacent two layers inorganic film 1162 is the structure of " inorganic-organic-is inorganic ", and support column is then
It is arranged among the organic film.And in encapsulated layer 116 include multilayer organic film 1161 when, support column be arranged the case where, meeting
It describes in detail in second situation below.
In the specific implementation, due to the inorganic film and luminescent layer in the inside film layer of flexible display panels, in encapsulated layer
It is easiest to cracked because of colliding with, it is thus preferred that support column is arranged in the organic film of encapsulated layer, not only may be used
To play certain supporting role to the inorganic film in encapsulated layer, and encapsulated layer is located on luminescent layer, in having for encapsulated layer
Support column is set in machine film layer, can also further protect luminescent layer.
As shown in Figure 2 a and 2 b, it is provided only on 115 He of planarization layer respectively for support column provided in an embodiment of the present invention
Structural schematic diagram in pixel defining layer 114；At this point, support column can be appropriate to protect by supporting role when there is hard object to collide with
Protect the organic layer where support column, and be located at the organic layer each film layer below, prevent its crack due to colliding with or
Person's deformation etc..General planarization layer and pixel defining layer with a thickness of 1 micron -2 microns, thus when support column be provided only on it is flat
When changing in layer or pixel defining layer, the height of support column is substantially also 1 micron -2 microns, and its height no more than planarization layer or
The thickness of pixel defining layer.
As shown in Figure 2 c, it is provided only in the adhesion coating for attaching protective film for support column provided in an embodiment of the present invention
Structural schematic diagram；At this point, preferably, support column 12 is arranged in the adhesion coating 118 for attaching protective film 117；Support column
It is positioned close to the side of flexible base board；And the height of support column 12 is less than the thickness for attaching the adhesion coating 118 of protective film 117
Degree.
It can play a supporting role for convenience of manufacture, and preferably, each film layer in protection flexible display panels, one
As first made encapsulated layer and then on encapsulated layer formed support column structure, then made again for attaching protective film
Adhesion coating is located at support column among the adhesion coating for attaching protective film, protective film is finally attached to flexible display panels
On.
Since the thickness of protective film is generally 30 microns -50 microns, and it is used to attach the thickness one of the adhesion coating of protective film
As be also 30 microns -50 microns, in order to not influence the effect of adhesion coating, when support column is arranged in adhesion coating, support column
Height should be less than the thickness of the adhesion coating for attaching protective film, preferably, the height of support column 12 is 10 microns -30 microns.
Support column arrangement provided in an embodiment of the present invention, other than it can be provided separately in any one layer of organic layer,
It can also be arranged in multilayer organic layer, while protect multiple film layers.Support column is arranged in multilayer organic layer below and is carried out
It is specific to introduce.
Second situation: support column is arranged in multilayer organic layer.
As shown in Figure 3a, organic film is set and for attaching protective film for support column provided in an embodiment of the present invention
Structural schematic diagram among adhesion coating；Specifically, support column is arranged in multilayer organic layer；Support column is arranged in planarization layer
115, appoint in pixel defining layer 114, the organic film 1161 in encapsulated layer 116 and the adhesion coating 118 for attaching protective film 117
Among two layers or two layers of meaning or more of film layer.
When support column is arranged in multilayer organic layer, the quantity of support column be it is multiple, both can be set in adjacent son
Region between pixel, also can be set in frame region, meanwhile, support column can be set to be introduced in the first above-mentioned situation
Any two layers or two layers or more of organic layer among.By the way that support column is arranged in multilayer organic layer, can preferably protect
Each film layer of inside in flexible display panels.
When support column is arranged in multilayer organic layer, in order to preferably play a supporting role, in addition to all supports
Column be required to be arranged outside non-pixel light emission region, in each layer of organic layer support column be arranged position also can according to need into
Row setting, preferably, the quantity that support column is arranged in each organic layer is identical, and the support column being arranged in different organic layers exists
Orthographic projection on flexible base board is overlapped.Specific structure may refer to following Fig. 3 a- Fig. 3 f.
In the specific implementation, support column can be set among two layers or two layers or more nearest of film layer of distance, for example,
It as shown in Figure 3a, can be in the organic film 1161 in nearest encapsulated layer 116 and the adhesion for attaching protective film 117
Support column is set in layer 118；Have hard object collide with flexible display panels when, support column can suitably protected by supporting role
While protecting organic film 1161 and adhesion coating 118, also it can protect positioned at the inorganic film 1162 below of adhesion coating 118, hair
Photosphere 112, and it is located at the other each film layers below of organic film 1161, prevent it from cracking or deforming due to colliding with
Deng.
In another example as shown in Figure 3b, in having in nearest planarization layer 115, pixel defining layer 114, encapsulated layer
Support column is set in machine film layer 1161；Have hard object collide with flexible display panels when, support column can be by supporting role, suitable
While protecting planarization layer 115, pixel defining layer 114 and organic film 1161, also it can protect positioned at organic film
1161 inorganic films 1162 below, luminescent layer 112, and it is located at the other each film layers below of organic film 1161, it prevents
It cracks or deforms due to colliding with.
In another example as shown in Figure 3c, the organic film 1161 in planarization layer 115, pixel defining layer 114, encapsulated layer
Support column is respectively provided with in the adhesion coating 118 for attaching protective film 117.Have hard object collide with flexible display panels when, support
Column can be by supporting role, in suitable protecting planarization layer 115, pixel defining layer 114, organic film 1161 and adhesion coating
It while 118, also can protect positioned at the inorganic film 1162 below of adhesion coating 118, luminescent layer 112, and be located at organic film
1161 other each film layers below of layer, prevent it from cracking or deforming due to colliding with.
Alternatively, it is also possible to be arranged among the film layer of spaced two layers or two layers or more, for example, as shown in Figure 3d,
Support column can be set in spaced adhesion coating 118 and pixel defining layer 114 for attaching protective film 117；Having
Hard object collide with flexible display panels when, support column can be by supporting role, in appropriate pixel defining layer 114 and adhesion coating 118
While, it also can protect positioned at the inorganic film 1162 below of adhesion coating 118, luminescent layer 112 and other each film layers,
Prevent it from cracking or deforming due to colliding with.
In another example as shown in Figure 3 e, in spaced planarization layer 115, pixel defining layer 114 and for attaching protection
Support column is set in the adhesion coating 118 of film 117.Have hard object collide with flexible display panels when, support column can pass through support make
With also can protect positioned at adhesion coating while suitable protecting planarization layer 115, pixel defining layer 114 and adhesion coating 118
118 inorganic films 1162 below, luminescent layer 112 and other each film layers, prevent it from cracking or becoming due to colliding with
Shape etc..
In above-mentioned every case, the quantity that support column is arranged in each layer of organic layer can not be identical, the position of setting
It can not also correspond, even random alignment；But for the effect for the support for playing the support column being arranged in each layer
More preferably, the quantity that support column is arranged in each organic layer is all the same for fruit, can guarantee to make support column in each layer in this way
The position of setting corresponds, i.e., the orthographic projection of the support column being arranged in different organic layers on flexible substrates is overlapped.
When the position for the support column being arranged in each layer corresponds, if there is hard object collides with flexible display panels, it is located at top layer
And the trend that moves downward can be generated due to stress by the support column to collide with, and in lower organic layer with the support of stress
The corresponding support column in column position then further can play certain supporting function to the support column of stress, and then play more preferable
Support effect.
Specifically, support column is arranged in multilayer organic layer, it, can be with except in the case of shown in above-mentioned Fig. 3 a- Fig. 3 e
Support column is set in other combined organic layers as needed.Support column mainly be arranged planarization layer, pixel defining layer,
In organic film in encapsulated layer and the adhesion coating for attaching protective film among any two layers or two layers or more of film layer, specifically
Facilities, can according to actual fabrication need be configured.For example, the encapsulated layer of flexible display panels, in addition to can be
Outside the structure of " inorganic-organic-is inorganic " introduced in the first situation, five-layer structure, even more layers can also be used
Structure.
Preferably, support column is arranged in the organic film in encapsulated layer；Encapsulated layer includes at least three layers be stacked
Inorganic film, and the organic film being arranged between every adjacent two layers inorganic film；Support column is arranged in every layer of organic film
In；Or, support column is disposed furthest from the organic film of flexible base board.
As illustrated in figure 3f, encapsulated layer shown in figure includes three layers of inorganic film 1162 and two layers of organic film 1161,
When support column is provided only in encapsulated layer 116, and is arranged in multilayer organic film 1161 again, support column be can be set two
In layer organic film 1161；There is hard object to collide with flexible display panels, the support column in lower layer's organic film there can be upper layer
Support column in machine film layer plays certain supporting function, so can preferably three layers of inorganic film in protection packaging layer and
Each film layer below encapsulated layer.
When support column in setting in other organic layers (as attaching the adhesion coating of protective film, pixel defining layer or flat
Change layer etc.) in while when being arranged in the organic film in encapsulated layer, typically occur in flexible display panels due to colliding with
Upper surface, thus in order to make support effect more preferably, support column can be set near the adhesion coating for attaching protective film
In organic film, as shown in figure 3g, support column is arranged in adhesion coating 118 for attaching protective film 117 and near for pasting
In the organic film 1161 of the adhesion coating 118 of attached protective film 117.
When support column is arranged in multilayer organic layer, can may also be arranged in adhesion coating for attaching protective film it
In, and specific structure and production method etc., it may refer to protect support column setting for attaching in the first above-mentioned situation
Introduction in the adhesion coating of cuticula, overlaps will not be repeated.
In the specific implementation, in the first above-mentioned situation, structure and property in any one layer of organic layer is arranged in support column
Matter etc. is suitable for second situation accordingly；For example, structure and property in the organic film in encapsulated layer is arranged in support column
Matter etc., it is above-mentioned when being provided in the multilayer organic layer of support column also including the organic film in encapsulated layer in second situation
Introduction in first situation is also applied for second situation, and overlaps will not be repeated.
The shape of support column, arrangement density and material etc. are introduced below, introduction below is applicable in above-mentioned support
Column is arranged in one layer and two kinds of situations of multilayer organic layer.
In the specific implementation, the concrete shape of support column, can according to actual needs and production method and material etc. into
Row setting, preferably, the shape of the orthographic projection of support column on flexible substrates is one of following shape or a variety of: it is round,
Ellipse, square, rectangle, regular hexagon or octagon.In implementation, it also can according to need and be set as other possible shapes
Shape as long as certain supporting role can be played, and facilitates production.
In the specific implementation, the region between adjacent sub-pixel and frame region can be set in support column, works as support
Column is arranged in frame region, as long as being arranged in organic layer (such as encapsulated layer), and does not influence the cabling on periphery；And when branch
When the region between adjacent sub-pixel is arranged in dagger, the arrangement density of the support column being arranged in organic layer can be according to opening
The factors such as mouth rate, resolution requirement, pixel unit quantity are configured, and can be the row of being uniformly distributed in flexible display panels
Column are also possible to averagely several pixel units and share a support column, or are random alignments.In order to not influence aperture opening ratio,
Again can each pixel unit of protection as far as possible, preferably, the arrangement density for the support column being arranged in organic layer is average every 4
A -10 pixel units share a support column.
It as shown in Figure 1a, include 4 × 4 pixel units in figure, by taking every 4 pixel units share a support column as an example,
Four pixel unit C in the lower right corner will be located at1, C2, C3, C4If one group of pixel unit for being considered a shared support column, then
The intermediate region of four pixel units is arranged in support column, and four pixel units is made to share a support column.And 5 other-
The arrangement mode that 10 pixel units share a support column is similar with Fig. 1 a, no longer introduces one by one herein.
Also, in display area, in order to not influence shining for flexible display panels, the support column of setting will be located at adjacent
Sub-pixel between region, thus the area of section of support column cannot be excessive, preferably, support column is being parallel to flexible base board
Area of section on direction is the 1%-50% of single pixel cellar area.
For above-mentioned support column, preferably, the material of support column is organic material, inorganic material or organic material and nothing
The mixing material of machine material.Wherein, preferably, organic material is epoxy resin or acrylic resin；Inorganic material is non-oxidation
Silicon or silicon nitride；Mixing material is silicon oxide carbide.The embodiment of the present invention has been merely given as the preferable making material of several effects,
When it is implemented, its specific making material also can according to need the other materials of selection.
Specifically, the height of the support column of production can also be varied, for example, working as when the material difference of support
Using organic material make support column when, since organic material is softer, have hard object collide with flexible display panels when, can produce
Certain deformation can play the role of the hard object of support simultaneously because the hardness of support column is bigger than the organic layer at place, thus
When production, in order to which better supporting role can be played, and the thickness of organic layer is not influenced, the thickness of the support column of production
The thickness of the organic layer where support column can be equal to.
In another example when using inorganic material production support column, preferably, support column is inorganic material；And support column is thick
Degree is less than the thickness of the organic layer where support column.Have hard object collide with flexible display panels when, organic layer might have centainly
Deformation and reduce its thickness, and inorganic material is harder, it is not easy to generate deformation, thus in production, support in order to prevent
Column influences the function of organic layer, the support column of inorganic material, and thickness is less than the thickness of the organic layer where support column.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display device, which includes this hair
Any of the above-described flexible display panels that bright embodiment provides.The principle and the embodiment of the present invention solved the problems, such as due to the display device
The flexible display panels of offer are similar, therefore the implementation of the display device may refer to the implementation of flexible display panels, repetition
Place repeats no more.
Based on the same inventive concept, the embodiment of the invention also provides a kind of such as above-mentioned flexibility provided in an embodiment of the present invention
The production method of display panel, the principle solved the problems, such as due to the production method and Flexible Displays face provided in an embodiment of the present invention
Plate is similar, therefore the implementation of the production method may refer to the implementation of above-mentioned flexible display panels, and overlaps will not be repeated.
As shown in figure 4, the production method of above-mentioned flexible display panels provided in an embodiment of the present invention, it specifically can be using such as
Lower step is realized:
Step S401 sequentially forms each functional film layer on flexible substrates, has multilayer organic layer in each functional film layer；
Step S402 forms at least one support column at least one layer of organic layer.
Wherein, respectively the hardness of support column material is greater than the hardness of the organic layer material where support column, and each support column
Thickness of the height no more than the organic layer where support column.How Jie that may refer in above-mentioned flexible display panels is specifically set
It continues, details are not described herein.
Specifically, may be before making organic layer since support column can be made of different technique
Production, it is also possible to be made again after having made organic layer, therefore be not absolute between step S401 and step S402
Sequencing, actually step S402 are the step of execution during executing step S401.It introduces in detail below.
In the specific implementation, each functional film layer for not needing setting support column, then can use method in the prior art
It is made, when making the organic layer where support column, support column can be made by a variety of different methods.Preferably,
Using one of following process or a variety of formation support columns: InkJet printing processes, lithographic etch process and exposure development technique.
Since the method that support column is arranged in each layer of organic layer is all similar, thus the embodiment of the present invention is only with by support column
It is illustrated for being arranged in the organic film of encapsulated layer, the production method being arranged in other organic layers may refer to set
The method in the organic film of encapsulated layer is set, is illustrated for forming structure as shown in Figure 1 b below, wherein assuming
Encapsulated layer to be formed is the structure of " inorganic-organic-is inorganic ".The each technique for forming support column is carried out separately below detailed
It introduces.
For InkJet printing processes, it is located in having made each functional film layer and encapsulated layer 116 below encapsulated layer
After the inorganic film of lower layer, structure as shown in Figure 5 a is formed；Then in the technique for using inkjet printing again, what is made
The structure that support column is formed on lower layer's inorganic film, that is, form structure shown in Fig. 5 b；Finally be further continued for being formed organic film and
The inorganic film on upper layer forms structure shown in Fig. 1 b.
For lithographic etch process, it is located in each functional film layer below production encapsulated layer and encapsulated layer 116 first
The inorganic film of lower layer and intermediate organic film, form structure as shown in Figure 6 a；Then lithographic etch process is being used again,
The via hole 13 for making support column is formed on organic film, that is, forms structure shown in Fig. 6 b；Finally producing again
Support column is formed in via hole, that is, forms structure shown in Fig. 6 c；It finally is further continued for forming the inorganic film on upper layer again, that is, forms figure
Structure shown in 1b.
For exposure development technique, it is located in having made each functional film layer and encapsulated layer 116 below encapsulated layer
After the inorganic film of lower layer, the figure of formation is identical as structure shown in Fig. 5 a；Photoactive material can be used, it is aobvious by exposing
The technique of shadow makes support column on inorganic film, and the figure of formation is identical as structure shown in Fig. 5 b；Finally it is further continued for being formed
The inorganic film of organic film and upper layer forms structure shown in Fig. 1 b.
Wherein, when making flexible display panels provided in an embodiment of the present invention, in addition to forming support using different process
Outside rod structure and corresponding organic layer, the manufacture craft for forming other each functional film layers may refer to the prior art, herein
It is not described in detail.
In conclusion passing through the embodiment of the invention provides a kind of flexible display panels, its production method and display device
Optimize the structure of film layer inside display panel, at least one support is provided at least one layer of organic layer in each functional film layer
Column, region or frame region of the support column of setting between the adjacent sub-pixel, and height are no more than where it
Organic layer thickness, thus not only will affect the normal display of display panel, the thickness of organic layer will not be influenced；In addition,
The display panel for increasing support column arrangement, the material of the organic layer as where the material hardness of support column is greater than the support column
Hardness, thus when there is hard object to collide with, support column can effectively provide certain support force, and preventing hard object from colliding with makes internal membrane
Layer cracks, and then improves the anti-ability collided with of display panel.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (16)
1. a kind of flexible display panels, have display area and frame region, the display area is provided with multiple in matrix row
The pixel unit of column, each pixel unit include at least one sub-pixel；The flexible display panels include: flexible base
Each functional film layer on the flexible base board and at least one support column is arranged in plate；Wherein,
There is multilayer organic layer, and support column setting is at least one layer of organic layer in each functional film layer；
The non-pixel light emission region of the flexible display panels is arranged in the support column, and the non-pixel light emission region includes phase
Region and the frame region between the adjacent sub-pixel；
The material hardness of each support column is greater than the material hardness of the organic layer where the support column, and each branch
The height of dagger is not more than the thickness of the organic layer where the support column.
2. flexible display panels as described in claim 1, which is characterized in that the support column be provided only on one layer it is described organic
In layer；
Planarization layer, pixel defining layer, the organic film in encapsulated layer and for attaching protective film is arranged in the support column
Among any one tunic layer in adhesion coating.
3. flexible display panels as described in claim 1, which is characterized in that the organic layer described in multilayer is arranged in the support column
In；
Multiple support columns are arranged in planarization layer, pixel defining layer, the organic film in encapsulated layer and protect for attaching
In the adhesion coating of film among any two layers or two layers or more of film layer.
4. flexible display panels as claimed in claim 3, which is characterized in that the support column is arranged in the encapsulated layer
In organic film；
The encapsulated layer includes at least three layers of inorganic film being stacked, and setting inorganic film described in every adjacent two layers
Between the organic film；
The support column is arranged in every layer of organic film；Or, the support column is disposed furthest from the flexible base board
The organic film in.
5. flexible display panels as claimed in claim 3, which is characterized in that the support column is arranged in each organic layer
Quantity it is identical, and orthographic projection phase mutual respect of the support column being arranged in the different organic layers on the flexible base board
It is folded.
6. such as the described in any item flexible display panels of claim 2-3, which is characterized in that the support column is arranged in the use
In the adhesion coating for attaching protective film；
The support column being arranged in adhesion coating is positioned close to the side of the flexible base board；And described it is arranged in adhesion coating
The height of support column is less than described for attaching the thickness of the adhesion coating of protective film.
7. flexible display panels as claimed in claim 6, which is characterized in that the height of the support column being arranged in adhesion coating
Degree is 10 microns -30 microns.
8. flexible display panels as described in claim 1, which is characterized in that the support column on the flexible base board just
The shape of projection is one of following shape or a variety of:
Circle, ellipse, square, rectangle, regular hexagon or octagon.
9. flexible display panels as described in claim 1, which is characterized in that the support column being arranged in the organic layer
Arrangement density be that average every 4-10 pixel units share a support column.
10. flexible display panels as claimed in claim 9, which is characterized in that the support column is being parallel to the flexible base
Area of section on plate direction is the 1%-50% of the single pixel cell area.
11. flexible display panels as described in claim 1, which is characterized in that the material of the support column is organic material, nothing
The mixing material of machine material or organic material and inorganic material.
12. flexible display panels as claimed in claim 11, which is characterized in that when the support column is organic material, institute
Stating organic material is epoxy resin or acrylic resin.
13. flexible display panels as claimed in claim 11, which is characterized in that the support column is inorganic material；And it is described
Support column thickness is less than the thickness of the organic layer where the support column.
14. a kind of display device, which includes flexible display panels of any of claims 1-13.
15. a kind of production method of such as described in any item flexible display panels of claim 1-13, this method comprises:
Each functional film layer is sequentially formed on flexible substrates, and there is multilayer organic layer in each functional film layer；And
At least one support column is formed at least one layer of organic layer；
Wherein, the hardness of each support column material is greater than the hardness of the organic layer material where the support column, and each
The height of the support column is not more than the thickness of the organic layer where the support column.
16. method as claimed in claim 15, which is characterized in that using one of following process or a variety of formation branch
Dagger:
InkJet printing processes, lithographic etch process and exposure development technique.
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| CN108010948B (en) * | 2017-11-30 | 2020-08-04 | 武汉天马微电子有限公司 | Flexible display panel, control method thereof and display device |
| CN108987444B (en) * | 2018-07-06 | 2021-06-11 | 云谷（固安）科技有限公司 | Display substrate, manufacturing method thereof, display panel and display device |
| CN109004003B (en) | 2018-07-16 | 2021-08-13 | 云谷（固安）科技有限公司 | Display screen and display device |
| CN108962954B (en) * | 2018-07-23 | 2021-01-26 | 云谷（固安）科技有限公司 | Organic light-emitting display screen, manufacturing method thereof and display device |
| CN109103218B (en) * | 2018-08-03 | 2021-09-14 | 昆山国显光电有限公司 | Display panel, manufacturing method thereof and display device |
| CN109064896A (en) * | 2018-08-16 | 2018-12-21 | 云谷（固安）科技有限公司 | Display device and its flexible display screen |
| CN109192757B (en) * | 2018-08-20 | 2021-02-12 | 云谷（固安）科技有限公司 | Display panel, display device and manufacturing method of display panel |
| CN109192755B (en) * | 2018-08-20 | 2020-12-11 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN109545826B (en) * | 2018-11-19 | 2020-12-22 | 上海天马微电子有限公司 | Display panel, manufacturing method thereof and display device comprising display panel |
| CN109585683A (en) | 2018-12-06 | 2019-04-05 | 京东方科技集团股份有限公司 | Display device and its manufacturing method |
| CN109671755A (en) * | 2018-12-15 | 2019-04-23 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| US10861912B2 (en) | 2018-12-15 | 2020-12-08 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Flexible display panel with hardened blocks and display device thereof |
| CN109473045A (en) * | 2018-12-17 | 2019-03-15 | 武汉华星光电半导体显示技术有限公司 | A kind of optical cement, its manufacturing method and its flexible display screen |
| CN109755287B (en) * | 2019-02-25 | 2021-12-28 | 武汉华星光电半导体显示技术有限公司 | Flexible OLED device and preparation method thereof |
| CN109950418A (en) * | 2019-03-18 | 2019-06-28 | 云谷（固安）科技有限公司 | Display panel and display screen |
| CN110687728B (en) * | 2019-09-27 | 2022-07-12 | 维沃移动通信有限公司 | Display module and terminal equipment |
| CN114188496A (en) * | 2020-08-24 | 2022-03-15 | 北京芯海视界三维科技有限公司 | Method for manufacturing light conversion layer, light emitting device and electronic device |
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