CN110165081A - Show backboard and preparation method thereof - Google Patents
Show backboard and preparation method thereof Download PDFInfo
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- CN110165081A CN110165081A CN201910465469.5A CN201910465469A CN110165081A CN 110165081 A CN110165081 A CN 110165081A CN 201910465469 A CN201910465469 A CN 201910465469A CN 110165081 A CN110165081 A CN 110165081A
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- open region
- barricade
- base board
- flexible base
- viewing area
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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
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/841—Self-supporting sealing arrangements
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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
- H10K50/842—Containers
- H10K50/8428—Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention proposes display backboards and preparation method thereof.The display backboard includes: flexible base board, has viewing area and open region on the flexible base board, and the side of viewing area is arranged in open region；Barricade is arranged in viewing area close to open region；Functional layer covers barricade and is arranged in viewing area.Display backboard proposed by the invention, the barricade that open region outside is arranged, for being blocked with protection structure collective effect to open region; so; it can thoroughly realize purpose of the open region without thin film residue, to be conducive to the cut quality of open region, and then make to show that the yields of backboard is higher.
Description
Technical field
The present invention relates to field of display technology, specifically, the present invention relates to display backboards and preparation method thereof.
Background technique
Organic Light Emitting Diode (OLED) is the display lighting engineering having gradually developed in recent years, especially in display line
Industry, have many advantages, such as high response, high contrast, can flexibility, and be considered as possessing broad application prospect.
At present for mobile phone products, the screen accounting of Rimless design shielded comprehensively is maximized, and has relatively high concern
Degree.And shields comprehensively and be divided into abnormity screen and non-profiled screen.Wherein, non-profiled screen only changes screen size, and top and the bottom reserve
Space is to necessary parts, and as a kind of improvement to conventional mobile phone, cost of manufacture is relatively cheap very much, is also easier reality
It is existing.And abnormity screen be then to cut away a part in inside screen, for placing the components such as camera, earpiece, sensor, due to itself plus
Work is difficult, technical difficulty is high and at high cost, and therefore, abnormity screen is mainly used for flagship machine and the design of high terminal.
Summary of the invention
The present invention is the following discovery based on inventor and completes:
The side that open region was cut or etched again to functional layer is deposited in the course of the research, in order to solve first front in the present inventor
Method, existing inorganic layer cut or etch incomplete technical problem caused by remaining, inventor devises a kind of production display
Barricade is arranged on the outside of base openings area and protection structure is arranged in open region for the method for backboard, then after producing functional layer
Protection structure is removed, to make the organic or inorganic material of open region noresidue, and then the cut quality of open region can be made more
It is high.
In the first aspect of the present invention, the invention proposes a kind of display backboards.
According to an embodiment of the invention, the display backboard includes: flexible base board, have on the flexible base board viewing area and
Open region, and the side of the viewing area is arranged in the open region；Barricade, the dams setting is in the viewing area close to institute
State open region；Functional layer, the functional layer cover the barricade and are arranged in the viewing area.
Inventor has found that the display backboard of the embodiment of the present invention, the barricade that open region outside is arranged, are used for
Open region is blocked with protection structure collective effect, in this way, can thoroughly realize purpose of the open region without thin film residue, from
And be conducive to the cut quality of open region, and then make to show that the yields of backboard is higher.
In addition, display backboard according to the above embodiment of the present invention, can also have the following additional technical features:
According to an embodiment of the invention, the display backboard further comprises: protection structure, the protection structure setting exist
The open region, and contacted with the barricade.
According to an embodiment of the invention, the protection structure includes: support column, the support column is arranged in the opening
Area；Surface of the support column far from the flexible base board is arranged in deformable cover plate, the deformable cover plate, and described in covering
Surface of the barricade far from the flexible base board.
According to an embodiment of the invention, the protection structure includes: groove, it is close that the groove is provided with the open region
On the flexible base board of the viewing area；Sacrificial layer, the sacrificial layer are filled in the groove and contact with the barricade.
According to an embodiment of the invention, the barricade includes at least the first barricade and the second barricade, the first barricade ring
It is arranged around the open region, second dams setting is in the side of first barricade far from the open region.
According to an embodiment of the invention, the height of the barricade is 1~3 micron, width is 10~20 microns, and adjacent
100~500 microns are divided between two barricades.
According to an embodiment of the invention, the display backboard further comprises: opening, the opening are arranged in the opening
Area and run through the flexible base board, minimum range between the barricade and the opening is 100~500 microns.
In the second aspect of the present invention, the invention proposes a kind of methods for making display backboard.
According to an embodiment of the invention, the described method includes: providing flexible base board, have on the flexible base board viewing area and
Open region, and the side of the viewing area is arranged in the open region；Barricade is formed in the side of the flexible base board, and described
Dams setting is in the viewing area close to the open region；Protection structure, and the guarantor are formed in the side of the flexible base board
Protection structure is arranged in the open region, and the protection structure is contacted with the barricade；In the open region and the viewing area shape
At function material layer, and the function material layer covers the barricade and the protection surface of the structure far from the flexible base board
And the surface of the flexible base board；The function material layer of the protection structure and the open region part is removed, to obtain
Obtain functional layer.
Inventor has found that using the production method of the embodiment of the present invention, on the outside of the open region of flexible base board
Barricade is set and protection structure is set in open region, then produces functional layer later for protection structure removal, is open in this way, realizing
Area is without thin film residue, to be conducive to the quality of subsequent cutting or etching, guarantees that cutting or the port quality etched are higher,
And then keep the yields for producing display backboard higher.
In addition, production method according to the above embodiment of the present invention, can also have the following additional technical features:
According to an embodiment of the invention, the method further includes: it is formed in the open region through the flexible base
The opening of plate.
According to an embodiment of the invention, described the step of forming protection structure includes: the side shape in the flexible base board
At support column, the support column is arranged in the open region；Placing in the support column far from the surface of the flexible base board can
Cover plate is deformed, the deformable cover plate covers surface of the barricade far from the flexible base board.
According to an embodiment of the invention, the material for forming the deformable cover plate includes marmem, magnetostriction
Material and thermal expansion material.
According to an embodiment of the invention, the deformable cover plate is adhered to the support column far from described soft by glue-line
Property substrate surface, and the glue for forming the glue-line includes the inharmonious glue of ultraviolet light and thermal release glue.
According to an embodiment of the invention, the step of removal include: make it is described can deformation cover plate deformation, and make the glue
Layer failure, then by it is described can the function material layer of deformation cover plate and the open region part remove.
According to an embodiment of the invention, the step of formation protection structure includes: in the open region close to described aobvious
Show and opens up groove on the flexible base board in area；Sacrificial layer is formed in the open region, the sacrificial layer is filled in the groove
In and contact with the barricade.
According to an embodiment of the invention, the material for forming the sacrificial layer includes polyethylene glycol, polycaprolactone, polyethylene
At least one of alcohol, polyvinylpyrrolidone and polymethyl methacrylate.
According to an embodiment of the invention, the step of removal includes: to soften the sacrificial layer, and pass through imprint mold
The function material layer of the sacrificial layer and the open region part is removed.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned aspect combination following accompanying drawings of the invention explains the description of embodiment, in which:
Fig. 1 is the cross section structure schematic diagram of the display backboard of one embodiment of the invention；
Fig. 2 is the cross section structure schematic diagram of the display backboard of another embodiment of the present invention；
Fig. 3 is the cross section structure schematic diagram of the display backboard of another embodiment of the present invention；
Fig. 4 is the cross section structure schematic diagram of the display backboard of another embodiment of the present invention；
Fig. 5 is the cross section structure schematic diagram of the display backboard of another embodiment of the present invention；
Fig. 6 is the cross section structure schematic diagram of the display backboard of another embodiment of the present invention；
Fig. 7 is the vertical view appearance diagram of the display backboard of one embodiment of the invention；
Fig. 8 is the method flow schematic diagram of the production display backboard of one embodiment of the invention；
Fig. 9 is the step product schematic diagram of the production method of one embodiment of the invention；
Figure 10 is the step product schematic diagram of the production method of another embodiment of the present invention；
Figure 11 is the local overlooking structural schematic diagram of the display backboard of the step S400 and S600 of one embodiment of the invention.
Appended drawing reference
100 flexible base boards
The viewing area A
The open region B
200 barricades
210 first barricades
220 second barricades
300 functional layers
310 function material layers
400 protection structures
410 support columns
420 deformable cover plates
430 grooves
440 sacrificial layers
500 openings
510 first openings
520 second openings
600 imprint molds
610 teeth print
Specific embodiment
The embodiment of the present invention is described below in detail, those skilled in the art is it will be appreciated that following example is intended for solving
The present invention is released, and is not construed as limitation of the present invention.Unless stated otherwise, it is not expressly recited in embodiment below specific
Technology or conditions, those skilled in the art can be according to common technology or conditions in the art or according to product description
It carries out.
In one aspect of the invention, the invention proposes a kind of display backboards.
According to an embodiment of the invention, display backboard includes flexible base board 100, barricade 200 and functional layer with reference to Fig. 1
300；Wherein, there are viewing area A and open region B on flexible base board 100, and the side of viewing area A is arranged in open region B；Barricade 200
Flexible base board 100 surface of the viewing area A close to open region B is set；And functional layer 300 covers barricade 200, and functional layer 300
It is arranged in viewing area A.
The present inventor has found that the method for production abnormity screen is at this stage in the course of the research, and functional layer is deposited in first whole face, then
The method for being cut by laser or etching removes the electroluminescent organic material of open area, finally carries out thin-film package.
But since the more difficult etching of the inorganic layers such as passivation layer, metal electrode in hole portion bit function layer is removed, and remaining part meeting
Influence it is subsequent flexible base board is blocked, thus cause cutting, etching not exclusively etc. technical problems.So inventor devises
Barricade 200, the guarantor that can be further arranged with open region B is arranged in a kind of display backboard on the outside of the open region B of flexible base board 100
Protection structure protects open region B jointly, in this way, removing protection structure after producing functional layer 300 again, so as to make open region
B noresidue functional layer, and then the cut quality for being conducive to open region B is higher.
According to an embodiment of the invention, display backboard can further comprise protection structure 400 with reference to Fig. 2, structure is protected
400 settings protect structure 400 to contact with barricade 200 in open region B.In this way, protection structure 400 and barricade 200 are in production function
Open region B can be blocked during ergosphere 300, in this way, subsequent can remove protection structure 400, to realize open region B without residual
The purpose stayed, and then the cut quality for being conducive to open region B is higher.
In some embodiments of the invention, with reference to Fig. 3, protecting structure 400 (not marking in Fig. 3) may include support column
410 and deformable cover plate 420；Wherein, support column 410 is arranged in open region B；And deformable cover plate 420 is arranged in support column 410
Surface far from flexible base board 100, and deformable cover plate 420 covers surface of the barricade far from flexible base board 100.In this way, production
Functional layer 300 out covers the upper surface of deformable cover plate 420 and the side surface of barricade, and functional layer 300 is avoided to touch out
Mouth region B, then by the deformation of deformable cover plate 420, separate deformable cover plate 420 with barricade.
In other embodiments of the invention, with reference to Fig. 4, it also may include recessed for protecting structure 400 (not marking in Fig. 4)
Slot 430 and sacrificial layer 440；Wherein, groove 430 is provided with open region B on the flexible base board 100 of viewing area A；And sacrificial layer
440 are filled in groove 430, and sacrificial layer 440 is contacted with barricade 200.In this way, the functional layer 300 produced covers sacrifice
440 upper surface of layer and the side surface and upper surface of barricade 200, avoid functional layer 300 from touching open region B, then pass through pressure
Stamp tool opens the sacrificial layer 440 of softening.
In some embodiments of the invention, with reference to Fig. 3, barricade 200 (not marking in Fig. 3) can include at least first gear
Wall 210 and the second barricade 220, wherein the first barricade 210 is arranged around open region B, and the second barricade 220 is arranged in the first barricade
210 sides far from open region B.In this way, at least two rows of barricades are arranged on the outside of the B of open region, second barricade 220 in outside can make
300 part of functional layer covers the edge extent of open region B, to prevent steam from invading from the first barricade 210.
In some embodiments of the invention, the height of barricade 200 can for 1~3 micron, width can be 10~20 micro-
Rice, and the interval of two adjacent barricades 200 can be 100~500 microns.In this way, the barricade using above-mentioned size designs, it can
Adequately protect open region B, simultaneously, moreover it is possible to prevent steam from invading.
According to an embodiment of the invention, display backboard also may further include opening 500 with reference to Fig. 5 or Fig. 6, it is open
500 settings are in open region B and run through flexible base board 100, the minimum range between barricade 200 and opening 500 can for 100~
500 microns, i.e. the distance between most interior edge of barricade 200 to opening 500 can be 100~500 microns, and specifically such as 200 is micro-
Rice, 300 microns or 400 microns etc..In this way, opening 500 can be used for placing the components such as camera, earpiece, sensor, also, open
The cut quality of mouth 500 is higher, to make to show that the yields of backboard is higher.
In some embodiments of the invention, the diameter of open region B can be 0.5~10 millimeter, specifically such as 2 millimeters
Deng in this way, can open up diameter is the opening 500 of 1.5 mm in size for placing camera etc..In some specific examples, ginseng
Fig. 7 is examined, 500 (not marking in Fig. 7) of opening may include the first opening 510 and the second opening 520, in this way, the first of oblong opens
The upper edge of flexible base board 100 is arranged in mouth 510, and for placing microphone, and circular second opening 520 is arranged in flexibility
The upper right corner of substrate 100, and for placing camera.
Also, the diameter of corresponding support column 410 can be less than the diameter of open region B, such as 1.5 millimeters etc., and support
The height of column 410 can be as the height of the first barricade 210, and the diameter of deformable cover plate 420 can be not less than first gear
210 upper surface of wall it is outer diametrically, specifically such as 2~3 millimeters, also, the thickness of deformable cover plate 420 can for 10~
100 microns, specifically such as 20 is micro-.In addition, the depth of groove 430 can be the 1/3~1/2 of 100 thickness of flexible base board, groove
430 width can be 20~40 microns, and the thickness of sacrificial layer 440 is not less than 1 micron.
In conclusion according to an embodiment of the invention, being arranged on the outside of open region the invention proposes a kind of display backboard
Barricade, for protection structure collective effect open region is blocked, in this way, can thoroughly realize that open region is residual without film
The purpose stayed to be conducive to the cut quality of open region, and then keeps the yields of the display backboard higher.
In another aspect of the invention, the invention proposes a kind of methods for making display backboard.It is according to the present invention
Embodiment, with reference to Fig. 8, which includes:
S100: flexible base board is provided.
In this step, there are viewing area A and open region B on flexible base board 100 (such as the materials such as polyimides PI are formed),
And the side of viewing area A is arranged in open region B.According to an embodiment of the invention, the concrete shape of viewing area A and open region B and
Adjacent setting relationship, those skilled in the art can correspondingly be designed according to the practical use of open region B.Of the invention
In some embodiments, with reference to Figure 11, viewing area A can be arranged around circular open region B, in this way, open region B can be designed to use
In placement camera.
S200: barricade is formed in the side of flexible base board.
In this step, it is initially formed barricade 200 in the side of flexible base board 100, and the setting of barricade 200 is leaned in viewing area A
The position of nearly open region B.In some embodiments of the invention, with reference to Figure 11, barricade 200 can be arranged around open region B, such as
This, the protection structure being subsequently formed is limited within the barricade 200 of annular, to realize protection structural defence open region B's
Effect.
According to an embodiment of the invention, the material for forming barricade 200 may include the organic material of photosensitive type resinae, such as
This, can produce the barricade 200 of required shape, height, width and spacing by way of photoetching.
S300: protection structure is formed in the side of flexible base board.
In this step, protection structure 400 is re-formed in the side of flexible base board 100, the protection setting of structure 400 is being open
Area B, and structure 400 and barricade 200 is protected to contact, in this way, protection structure 400 and barricade 200 shelter from whole openings jointly
Area B.According to an embodiment of the invention, the protection specific structure and composition of structure 400, those skilled in the art can be according to open region
The true form of B is correspondingly designed.
In some embodiments of the invention, step S300 can include: S310 forms support in the side of flexible base board 100
Column 410, and support column 410 is arranged in open region；S320 is deformable in surface placement of the support column 410 far from flexible base board 100
Cover plate 420, and deformable cover plate 420 covers part of the surface of the barricade 200 far from flexible base board 100.Also, the step is produced
Product cross section structure can refer to (b) of Fig. 9.
According to an embodiment of the invention, the material for forming deformable cover plate 420 includes marmem, magnetostriction material
Material and thermal expansion material, in this way, subsequent step can make deformable 420 deformation of cover plate by way of heating or magnetic field.Wherein, shape
Shape memory alloys are the memorial alloy with double-pass memory effect, i.e., restore high-temperature-phase shape when heated, again can be extensive when cooling
Multiple low-temperature phase shape, it may include Fe-Pt, Ti-Ni, Ti-Ni-Pd, Ti-Nb, U-Nb, Fe-Mn-Si, Au-Cd, Ag-Cd, Cu-
Zn, Cu-Zn-Sn, Cu-Zn-Al, Cu-Zn-Si, Cu-Sn, Cu-Zn-Ga, In-Ti, Au-Cu-Zn and NiAl etc., transition temperature
At 100 DEG C -600 DEG C；Magnetostriction materials are that flexible and deformation material can be generated under magnetic field, it may include Ni-Co, Ni-Co-
The metal systems alloy such as Cr, Fe-Al, Ni-Co, Ni-Co-Cu Ferrite Material, Tb, Dy, Sm ferro-compound (such as TbFe2、
DyFe2Or SmFe2At least one of), wherein having " direct magnetostriction " material is in elongated, positive mangneto in its direction of magnetization
Telescopic material generally contains Fe, increases with magnetic field strength and extends, such as Tb-Dy-Fe material, and there is " negative magnetostriction " material to exist
Its direction of magnetization is shunk, and negative magnetostriction material generally contains Ni, is increased with magnetic field strength and is shortened, such as Ni-Co-Cr；And it is hot
Expanding material may include positive and negative thermal expansion material, i.e., the material for increasing expansion with temperature and shrinking, wherein positive linear thermal expansion material
Material can include the one kind such as metal-ceramic, borontrifluoride scandium crystal, zirconium tungstates for metals, negativity thermal expansion materials such as Al, Mo, Nb
Or the composite material of several formation, the operating temperature of thermal expansion material is at 100 DEG C -600 DEG C.
In some specific examples, deformable cover plate 420 can be adhered to support column 410 far from flexible base board by glue-line
100 surface, and the glue for forming glue-line includes the inharmonious glue of ultraviolet light and thermal release glue.In this way, can lead in the step of subsequent removal
The mode for crossing ultraviolet light or heating makes glue-line fail, to promote the separation of deformable cover plate 420 and support column 410.
In other embodiments of the invention, step S300 be may also comprise: S330 is in open region B close to viewing area A's
Groove 430 is opened up on flexible base board 100；S340 forms sacrificial layer in open region B440, and sacrificial layer 440 is filled in groove 430
In and sacrificial layer 440 contacted with barricade 200.Also, the product cross section structure that the step is produced can refer to (b) of Figure 10.
According to an embodiment of the invention, the material for forming sacrificial layer 440 may include polyethylene glycol, polycaprolactone, polyethylene
At least one of alcohol, polyvinylpyrrolidone and polymethyl methacrylate.In this way, subsequent step can be made by solvent it is sacrificial
Domestic animal layer 440 softens, so that being easily stamped mold takes off film.According to an embodiment of the invention, the depth of groove 430 can be flexible base board
The 1/3~1/2 of 100 thickness, the width of groove 430 can be 20~40 microns, and the thickness of sacrificial layer 440 is not less than 1 micron.
S400: function material layer is formed in open region and viewing area.
In this step, function material layer 310 is all formed in open region B and viewing area A, and function material layer 310 covers
The surface of barricade 200 and protection surface and flexible base board 100 of the structure far from flexible base board 100.Also, the step is produced
Product cross section structure can refer to (b) of Fig. 9 or (b) of Figure 10.
In some embodiments of the invention, with reference to (b) of Fig. 9, the function material layer 310 of a flood can be deposited.?
It, can be in the function of viewing area A one flood of formation with reference to (b) of Figure 10 and (a) of Figure 11 in other embodiments of the invention
Material layer 310 and form patterned function material layer 310 in open region B, used specifically, forming function material layer 310
The region of corresponding opening area B is arranged to grid on mask plate, and the ruling width of grid is not less than 200 microns, in this way, opening
The function material layer 310 of area B has a gap, these gaps are conducive to the solvent of subsequent step to the infiltration of sacrificial layer 440 and soft
Change.
S500: the function material layer of removal protection structure and open region part, to obtain functional layer.
In this step, the function material layer 310 of removal protection structure and open region part B, to obtain functional layer 300.
According to an embodiment of the invention, the mode of removal protection structure and its partial function material layer 310 of upper surface, art technology
Personnel can be designed accordingly according to the specific design of protection structure.
In some embodiments of the invention, with reference to (c) of Fig. 9, step S500 can include: making can 420 shape of deformation cover plate
Become, and glue-line made to fail, then by can the function material layer 310 of deformation cover plate 420 and open region part B remove.Specifically, by soft
Property substrate be heated to 100 degrees Celsius or more, make Fe-Pt memorial alloy can the edge of deformation cover plate 420 warpage occurs, and make heat
Separation gel is inharmonious, at this time again by vacuum chuck will deform it is inharmonious can deformation cover plate 420 remove.Alternatively, product is put into magnetic
In, TbFe2Material can deformation cover plate 420 can prolong horizontal direction extend and make functional material fault rupture, then use ultraviolet light
From back side illuminaton and keep the inharmonious glue of ultraviolet light inharmonious, at this time by magnetic chuck can deformation cover plate 420 remove.
In other embodiments of the invention, it may also comprise with reference to (c) step S500 of Figure 10: making to sacrifice by solvent
Layer 440 softens, and is removed the function material layer 310 of sacrificial layer 440 and open region part B by imprint mold 600.Specifically
, such as the sacrificial layer 440 of ethyl alcohol, isopropanol, acetone equal solvent soft polymer is instilled on open region, then pass through making ide
Tool 600 removes sacrificial layer 440, also, imprint mold 600 is provided with adhesive close to the surface of function material layer 310, can make
Imprint mold 600 adheres to the function material layer 310 and sacrificial layer 440 of open region part B, and imprint mold 600 have with it is recessed
The print tooth 610 of 430 shape of slot cooperation, the print tooth 610 being deep into groove 430 are conducive to pull out sacrificial layer 440 from groove 430
Out.Moreover, the width of print tooth 610 can be less than the width of groove 430.
In some embodiments of the invention, after step S500, which may also include that
S600: the opening for running through flexible base board is formed in open region.
In this step, the opening 500 through flexible base board 100 is formed in open region B.Also, what the step was produced
Product cross section structure can refer to (d) of Fig. 9 or (d) of Figure 10.According to an embodiment of the invention, the method for forming opening 500 can
In a manner of being laser cutting or etching, those skilled in the art can carry out correspondingly according to the specific material of flexible base board 100
Selection.
In conclusion according to an embodiment of the invention, the invention proposes a kind of methods for making display backboard, in flexibility
Barricade is set on the outside of the open region of substrate and protection structure is set in open region, then produces functional layer and later goes protection structure
It removes, in this way, realizing that open region without thin film residue, to be conducive to the quality of subsequent cutting or etching, guarantees cutting or etching
Port quality out is higher, and then keeps the yields for producing display backboard higher.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the 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 be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (16)
1. a kind of display backboard characterized by comprising
Flexible base board has viewing area and open region on the flexible base board, and the one of the viewing area is arranged in the open region
Side；
Barricade, the dams setting is in the viewing area close to the open region；
Functional layer, the functional layer cover the barricade and are arranged in the viewing area.
2. display backboard according to claim 1, which is characterized in that further comprise:
Structure is protected, the protection structure setting is contacted in the open region, and with the barricade.
3. display backboard according to claim 2, which is characterized in that the protection structure includes:
Support column, the support column are arranged in the open region；
Deformable cover plate, surface of the support column far from the flexible base board is arranged in the deformable cover plate, and covers institute
State surface of the barricade far from the flexible base board.
4. display backboard according to claim 2, which is characterized in that the protection structure includes:
Groove, the groove are provided with the open region on the flexible base board of the viewing area；
Sacrificial layer, the sacrificial layer are filled in the groove and contact with the barricade.
5. display backboard according to claim 1, which is characterized in that the barricade includes at least the first barricade and second gear
Wall, first barricade are arranged around the open region, and second dams setting is in first barricade far from the opening
The side in area.
6. display backboard according to claim 1, which is characterized in that the height of the barricade is 1~3 micron, width is
10~20 microns, and 100~500 microns are divided between two adjacent barricades.
7. display backboard according to claim 1, which is characterized in that further comprise:
Opening, the opening setting is in the open region and runs through the flexible base board, between the barricade and the opening
Minimum range is 100~500 microns.
8. a kind of method for making display backboard characterized by comprising
Flexible base board is provided, has viewing area and open region on the flexible base board, and the open region is arranged in the viewing area
Side；
The flexible base board side formed barricade, and the dams setting in the viewing area close to the open region；
Protection structure is formed in the side of the flexible base board, and the protection structure setting is in the open region, the protection
Structure is contacted with the barricade；
Function material layer is formed in the open region and the viewing area, and the function material layer covers the barricade and described
Protect the surface on surface and the flexible base board of the structure far from the flexible base board；
The function material layer of the protection structure and the open region part is removed, to obtain functional layer.
9. according to the method described in claim 8, it is characterized in that, further comprising:
The opening for running through the flexible base board is formed in the open region.
10. according to the method described in claim 8, it is characterized in that, the formation includes: the step of protecting structure
Support column is formed in the side of the flexible base board, the support column is arranged in the open region；
Deformable cover plate is placed far from the surface of the flexible base board in the support column, the deformable cover plate covers the gear
Surface of the wall far from the flexible base board.
11. according to the method described in claim 10, it is characterized in that, the material for forming the deformable cover plate includes shape note
Recall alloy, magnetostriction materials and thermal expansion material.
12. according to the method described in claim 10, it is characterized in that, the deformable cover plate is adhered to by glue-line described
Surface of the support column far from the flexible base board, and the glue for forming the glue-line includes the inharmonious glue of ultraviolet light and thermal release glue.
13. according to the method for claim 12, which is characterized in that the step of removal includes:
Make it is described can deformation cover plate deformation, and the glue-line is made to fail, then will described in can deformation cover plate and the open region part
The function material layer removing.
14. according to the method described in claim 8, it is characterized in that, the formation includes: the step of protecting structure
Groove is opened up on the flexible base board of the open region close to the viewing area；
Sacrificial layer is formed in the open region, the sacrificial layer is filled in the groove and contacts with the barricade.
15. according to the method for claim 14, which is characterized in that formed the sacrificial layer material include polyethylene glycol,
At least one of polycaprolactone, polyvinyl alcohol, polyvinylpyrrolidone and polymethyl methacrylate.
16. according to the method for claim 14, which is characterized in that the step of removal includes:
Soften the sacrificial layer, and passes through imprint mold for the functional material of the sacrificial layer and the open region part
Layer removal.
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| CN201910465469.5A CN110165081B (en) | 2019-05-30 | 2019-05-30 | Display back plate and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854171A (en) * | 2019-11-21 | 2020-02-28 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display device |
| CN111244327A (en) * | 2020-01-23 | 2020-06-05 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display device |
| CN111564479A (en) * | 2020-05-20 | 2020-08-21 | 京东方科技集团股份有限公司 | Display panel manufacturing method, display panel and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887523A (en) * | 2015-11-20 | 2017-06-23 | 三星显示有限公司 | OLED and its manufacture method |
| CN109560114A (en) * | 2018-12-06 | 2019-04-02 | 京东方科技集团股份有限公司 | Manufacturing method, display panel and the display device of display panel |
| CN109742114A (en) * | 2019-01-08 | 2019-05-10 | 京东方科技集团股份有限公司 | Show backboard production method and display backboard, display device |
-
2019
- 2019-05-30 CN CN201910465469.5A patent/CN110165081B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887523A (en) * | 2015-11-20 | 2017-06-23 | 三星显示有限公司 | OLED and its manufacture method |
| CN109560114A (en) * | 2018-12-06 | 2019-04-02 | 京东方科技集团股份有限公司 | Manufacturing method, display panel and the display device of display panel |
| CN109742114A (en) * | 2019-01-08 | 2019-05-10 | 京东方科技集团股份有限公司 | Show backboard production method and display backboard, display device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854171A (en) * | 2019-11-21 | 2020-02-28 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display device |
| CN111244327A (en) * | 2020-01-23 | 2020-06-05 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display device |
| WO2021148007A1 (en) * | 2020-01-23 | 2021-07-29 | 京东方科技集团股份有限公司 | Display substrate motherboard, display substrate and preparation method therefor, and display apparatus |
| US12063810B2 (en) | 2020-01-23 | 2024-08-13 | Boe Technology Group Co., Ltd. | Display substrate motherboard, display substrate and manufacturing method therefor, and display apparatus |
| CN111564479A (en) * | 2020-05-20 | 2020-08-21 | 京东方科技集团股份有限公司 | Display panel manufacturing method, display panel and display device |
| CN111564479B (en) * | 2020-05-20 | 2023-10-10 | 京东方科技集团股份有限公司 | Manufacturing method of display panel, display panel and display device |
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| CN110165081B (en) | 2021-10-01 |
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