CN109178516A - Notacoria minimizing technology and device, display device - Google Patents
Notacoria minimizing technology and device, display device Download PDFInfo
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- CN109178516A CN109178516A CN201810824517.0A CN201810824517A CN109178516A CN 109178516 A CN109178516 A CN 109178516A CN 201810824517 A CN201810824517 A CN 201810824517A CN 109178516 A CN109178516 A CN 109178516A
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- display panel
- protective film
- bent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B69/00—Unpacking of articles or materials, not otherwise provided for
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Abstract
The present invention discloses a kind of notacoria minimizing technology and device, display device, belongs to field of display technology.This method comprises: attaching protective film on the non-display face of display panel using ultraviolet cured adhesive；Curing process is carried out to the display panel for being pasted with protective film; the ultraviolet cured adhesive of the area to be bent of display panel is set to be in uncured state; the ultraviolet cured adhesive in region to be solidified is in solid state, and region to be solidified is the region on display panel in addition to area to be bent；Remove the protective film of area to be bent.The present invention solves the problems, such as that the effect of notacoria minimizing technology in the related technology is poor, improves notacoria removal effect.The present invention is used to carry out local removal to the protective film at the display panel back side.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of notacoria minimizing technology and device, display device.
Background technique
With the development of display technology, display device gradually develops to the direction of full frameization and narrow frame.It is main at present
The mode of lead bending (English: Pad Bending) is taken to reduce the frame of display device, to realize the narrow side of display device
Frame.
Display device includes display panel, and display panel has the display surface being oppositely arranged and a non-display face, display surface into
Row image shows that non-display face is shown without image, when carrying out Pad Bending, the area Pad of display panel can be rolled over
The curved non-display face to display panel, to reduce the width of the non-display area of display panel, to reduce the side of display device
Frame.Currently, the non-display face of display panel is usually pasted with protective film, the stress generated in order to avoid bending process is to the area Pad
The influence of lead needs to remove the protective film of the area to be bent of display panel before carrying out Pad Bending.It is related
In technology, generallys use laser and the protective film of the area to be bent of display panel is burnt, make the protection of area to be bent
Film is removed by thermal decomposition.Wherein, the non-display face of display panel is also referred to as the back side of display panel, is attached to display panel
The protective film in non-display face is also referred to as notacoria, and area to be bent is located in the area Pad.
But laser burn process can damage display panel, and will lead to notacoria attach glue residua it is inhomogenous, so as to cause
The unbalanced stress one that bending process generates, therefore, the effect of above-mentioned notacoria minimizing technology is poor.
Summary of the invention
The present invention provides a kind of notacoria minimizing technology and device, display device, can solve notacoria removal in the related technology
The poor problem of the effect of method.Technical scheme is as follows:
In a first aspect, providing a kind of notacoria minimizing technology, which comprises
Protective film is attached on the non-display face of display panel using ultraviolet cured adhesive；
Curing process is carried out to the display panel for being pasted with the protective film, makes the area to be bent of the display panel
Ultraviolet cured adhesive is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state, the area to be solidified
Domain is the region on the display panel in addition to the area to be bent；
Remove the protective film of the area to be bent.
Optionally, to be pasted with the protective film display panel carry out curing process, make the display panel wait roll over
The ultraviolet cured adhesive in curved region is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state, comprising:
Light shield layer is formed in corresponding region of the area to be bent on the protective film；
It is formed with the display panel of the light shield layer using ultraviolet light, solidifies the ultraviolet light of the area to be bent
Glue is in uncured state, and the ultraviolet cured adhesive in the region to be solidified is in solid state.
Optionally, the corresponding region in the area to be bent on the protective film forms light shield layer, comprising:
Photomask is attached in corresponding region of the area to be bent on the protective film.
Optionally, the corresponding region in the area to be bent on the protective film attaches photomask, comprising:
Photomask is aligned with the display panel for being pasted with the protective film, makes the photomask on the protective film
Orthographic projection region is overlapped with corresponding region of the area to be bent on the protective film；
Apply pressure to the photomask, the photomask is made to be attached to the area to be bent on the protective film
On corresponding region.
Optionally, to be pasted with the protective film display panel carry out curing process, make the display panel wait roll over
The ultraviolet cured adhesive in curved region is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state, comprising:
Mask plate is set in the side that the display panel is pasted with the protective film, makes the lightproof area of the mask plate
It is aligned with the area to be bent, transmission region and the regional alignment to be solidified；
The display panel is irradiated by the mask plate using ultraviolet light, solidifies the ultraviolet light of the area to be bent
Glue is in uncured state, and the ultraviolet cured adhesive in the region to be solidified is in solid state.
Optionally, after the protective film for removing the area to be bent, the method also includes: using plasma pair
The area to be bent is cleaned.
Optionally, the display panel is display master blank or single display panel, and the display master blank includes array arrangement
Multiple display panels.
Optionally, the display panel is display master blank, and the display master blank includes multiple display panels of array arrangement,
Each display panel has area to be bent,
Before the protective film for removing the area to be bent, the method also includes:
The display master blank is cut, multiple display panels are obtained；
The protective film of the removing area to be bent, comprising: in module set section, remove every in the multiple display panel
The protective film of the area to be bent of a display panel.
Optionally, the protective film of the removing area to be bent, comprising:
The protective film is cut boundary line along the area to be bent；
Remove the protective film of the area to be bent.
Second aspect, provides a kind of notacoria removal device, and the notacoria removal device includes:
Module is attached, for attaching protective film on the non-display face of display panel using ultraviolet cured adhesive；
Curing module makes the display panel for carrying out curing process to the display panel for being pasted with the protective film
The ultraviolet cured adhesive of area to be bent be in uncured state, the ultraviolet cured adhesive in region to be solidified is in solidification shape
State, the region to be solidified are the region on the display panel in addition to the area to be bent；
Strip module, for removing the protective film of the area to be bent.
Optionally, the curing module, comprising:
Lightproof unit, for forming light shield layer in corresponding region of the area to be bent on the protective film；
Illumination unit is made described to flex area for being formed with the display panel of the light shield layer using ultraviolet light
The ultraviolet cured adhesive in domain is in uncured state, and the ultraviolet cured adhesive in the region to be solidified is in solid state.
Optionally, the lightproof unit, for being attached in corresponding region of the area to be bent on the protective film
Photomask.
Optionally, the lightproof unit, is used for:
Photomask is aligned with the display panel for being pasted with the protective film, makes the photomask on the protective film
Orthographic projection region is overlapped with corresponding region of the area to be bent on the protective film；
Apply pressure to the photomask, the photomask is made to be attached to the area to be bent on the protective film
On corresponding region.
Optionally, the curing module, is used for:
Mask plate is set in the side that the display panel is pasted with the protective film, makes the lightproof area of the mask plate
It is aligned with the area to be bent, transmission region and the regional alignment to be solidified；
The display panel is irradiated by the mask plate using ultraviolet light, solidifies the ultraviolet light of the area to be bent
Glue is in uncured state, and the ultraviolet cured adhesive in the region to be solidified is in solid state.
Optionally, the notacoria removal device further include:
Cleaning module, for after the protective film for removing the area to be bent, using plasma to be to described wait roll over
Curved region is cleaned.
Optionally, the display panel is display master blank or single display panel, and the display master blank includes array arrangement
Multiple display panels.
Optionally, the display panel is display master blank, and the display master blank includes multiple display panels of array arrangement,
Each display panel has area to be bent, the notacoria removal device further include:
Cutting module, for being cut to the display master blank before the protective film for removing the area to be bent,
Obtain multiple display panels；
The strip module, in module set section, remove each display panel in the multiple display panel to bending
The protective film in region.
Optionally, the strip module, is used for:
The protective film is cut boundary line along the area to be bent；
Remove the protective film of the area to be bent.
The third aspect provides a kind of display device, and the display device includes display panel, and the non-of the display panel shows
Show and be pasted with protective film on face, the display panel has area to be bent, and the lead district of the display panel is along described wait roll over
Curved region bending is to the non-display face of the display panel, and the protective film of the area to be bent uses first aspect or first
The removal of method described in any optional way of aspect.
Technical solution provided by the invention has the benefit that
Notacoria minimizing technology and device, display device provided by the invention, due to using ultraviolet cured adhesive in display surface
When attaching protective film on the non-display face of plate, and carrying out curing process to the display panel for being pasted with protective film, only have cured to
The ultraviolet cured adhesive of consolidation zone, and the ultraviolet cured adhesive of uncured area to be bent, therefore the guarantor of the area to be bent
Cuticula can be removed directly, without carrying out laser burn, laser burn process be avoided to damage display panel, and area to be bent
Protective film attaching glue residua is uniform, and the stress of bending process is uniform, and therefore, the effect of the notacoria minimizing technology is preferable.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Invention.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of method flow diagram of notacoria minimizing technology provided in an embodiment of the present invention；
Fig. 2 is the method flow diagram of another notacoria minimizing technology provided in an embodiment of the present invention；
Fig. 3 is a kind of signal attached after protective film on the non-display face of display panel provided in an embodiment of the present invention
Figure；
Fig. 4 is a kind of method for carrying out curing process to the display panel for being pasted with protective film provided in an embodiment of the present invention
Flow chart；
Fig. 5 is that a kind of corresponding region in area to be bent on protective film provided in an embodiment of the present invention attaches photomask
Schematic diagram afterwards；
Fig. 6 is that a kind of corresponding region in area to be bent on protective film provided in an embodiment of the present invention attaches photomask
Schematic diagram；
Fig. 7 is a kind of corresponding region in the area to be bent of display master blank on protective film provided in an embodiment of the present invention
Attach the schematic diagram of photomask；
Fig. 8 is a kind of corresponding region in the area to be bent of display master blank on protective film provided in an embodiment of the present invention
Schematic diagram after attaching photomask；
Fig. 9 is showing after a kind of display panel for being formed with light shield layer using ultraviolet light provided in an embodiment of the present invention
It is intended to；
Figure 10 is provided in an embodiment of the present invention another to the display panel progress curing process for being pasted with protective film
Method flow diagram；
Figure 11 is a kind of schematic diagram being exposed to the display panel for being pasted with protective film provided in an embodiment of the present invention；
Figure 12 is a kind of schematic diagram of protective film for removing area to be bent provided in an embodiment of the present invention；
Figure 13 is the signal after the area to be bent of a kind of pair of display panel provided in an embodiment of the present invention is cleaned
Figure；
Figure 14 is a kind of block diagram of notacoria removal device provided in an embodiment of the present invention；
Figure 15 is a kind of block diagram of curing module provided in an embodiment of the present invention；
Figure 16 is the block diagram of another notacoria removal device provided in an embodiment of the present invention；
Figure 17 is the block diagram of another notacoria removal device provided in an embodiment of the present invention.
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
Display device includes display panel (English: Panel), and the back side of display panel is pasted with protective film, is attached to aobvious
Show that the protective film of back side of panel is also referred to as notacoria.Currently, the narrow frame in order to realize display device, mainly takes Pad
The mode of Bending by the area the Pad bending of display panel to the back side of display panel, requirement of the Pad Bending to stress compared with
Height, in order to avoid influence of the stress to the area Pad lead that bending process generates needs before Pad Bending by display surface
The protective film of the area to be bent of plate removes, that is, needing to carry out the protective film on display panel local removal.Wherein, to
Bending region is located in the area Pad.
Currently, mainly being removed using protective film of following two method to the area to be bent of display panel.
First method: it attaches and protects at the back side of display master blank (multiple display panels that display master blank includes array arrangement)
Cuticula cuts display master blank using laser, obtains multiple display panels, later by each display panel to flex area
The protection film stripping in domain.In the method, it in order to avoid the lead of subsequent producing line technique damage area to be bent, is removing wait roll over
After the protective film in curved region, need to attach again on the protective film at each display panel back side one layer for protect to flex area
The protective film in domain.
Second method: it in module set section, is burnt, is made using protective film of the laser to the area to be bent of display panel
The protective film of area to be bent is removed by thermal decomposition.
But above-mentioned first method needs after the protective film of removing area to be bent in each display surface backboard
Layer protecting film is attached on the protective film in face again, therefore, the productive temp time (English: Tact time) of the first method
It is longer.For above-mentioned second method during removing notacoria, laser can damage display panel, and can generate a large amount of particle
(English: Particle), notacoria attaches the unbalanced stress one that glue residua is inhomogenous, generates so as to cause bending process.
Currently, can also be in the back side of each display panel, the region in addition to area to be bent attaches protective film, and
Protective film is not attached in area to be bent in module set section, to cut the protective film at each display panel edge later.But
It is that this method needs higher notacoria attaching precision, higher cost more demanding to attachment process.
Notacoria minimizing technology provided in an embodiment of the present invention attaches protective film at the entire back side of display panel, and in mould
Group section Peeled display panel area to be bent protective film, therefore, requirement of this method to attachment process is lower, cost compared with
It is low, Tact time can be shortened, and notacoria removal process will not damage display panel, notacoria will not be caused to attach glue residual
It stays inhomogenous.Notacoria minimizing technology provided in an embodiment of the present invention please refers to following each embodiments.
Fig. 1 is a kind of method flow diagram of notacoria minimizing technology provided in an embodiment of the present invention.Referring to Fig. 1, this method packet
It includes:
Step 101 attaches protective film on the non-display face of display panel using ultraviolet cured adhesive.
Step 102 carries out curing process to the display panel for being pasted with protective film, makes the area to be bent of display panel
Ultraviolet cured adhesive is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state, and region to be solidified is
Region on display panel in addition to area to be bent.
Step 103, the protective film for removing area to be bent.
In conclusion notacoria minimizing technology provided in an embodiment of the present invention, due to using ultraviolet cured adhesive in display surface
When attaching protective film on the non-display face of plate, and carrying out curing process to the display panel for being pasted with protective film, only have cured to
The ultraviolet cured adhesive of consolidation zone, and the ultraviolet cured adhesive of uncured area to be bent, therefore the guarantor of the area to be bent
Cuticula can be removed directly, without carrying out laser burn, laser burn process be avoided to damage display panel, and area to be bent
Protective film attaching glue residua is uniform, and the stress of bending process is uniform, and therefore, the effect of the notacoria minimizing technology is preferable.
Optionally, curing process is carried out to the display panel for being pasted with protective film, makes the area to be bent of display panel
Ultraviolet cured adhesive is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state, comprising:
Light shield layer is formed in corresponding region of the area to be bent on protective film；
It is formed with the display panel of light shield layer using ultraviolet light, the ultraviolet cured adhesive of area to be bent is made to be in non-
The ultraviolet cured adhesive of solid state, region to be solidified is in solid state.
Optionally, the corresponding region in area to be bent on protective film forms light shield layer, comprising:
Photomask is attached in corresponding region of the area to be bent on protective film.
Optionally, the corresponding region in area to be bent on protective film attaches photomask, comprising:
By photomask be pasted with protective film display panel align, make orthographic projection region of the photomask on protective film with
Corresponding region of the area to be bent on protective film is overlapped；
Apply pressure to photomask, photomask is made to be attached to area to be bent on the corresponding region on protective film.
Optionally, curing process is carried out to the display panel for being pasted with protective film, makes the area to be bent of display panel
Ultraviolet cured adhesive is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state, comprising:
Mask plate is set in the side that display panel is pasted with protective film, makes lightproof area and the area to be bent of mask plate
Alignment, transmission region and regional alignment to be solidified；
Display panel is irradiated by mask plate using ultraviolet light, the ultraviolet cured adhesive of area to be bent is made to be in uncured
The ultraviolet cured adhesive of state, region to be solidified is in solid state.
Optionally, after the protective film of removing area to be bent, this method further include: using plasma treats bending
Region is cleaned.
Optionally, display panel is display master blank or single display panel, and display master blank includes the multiple aobvious of array arrangement
Show panel.
Optionally, display panel is display master blank, and display master blank includes multiple display panels of array arrangement, each display
Panel has area to be bent,
Before the protective film of removing area to be bent, this method further include:
Display master blank is cut, multiple display panels are obtained；
Remove the protective film of area to be bent, comprising: in module set section, remove each display panel in multiple display panels
The protective film of area to be bent.
Optionally, the protective film of area to be bent is removed, comprising:
Protective film is cut boundary line along area to be bent；
Remove the protective film of area to be bent.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
Fig. 2 is the method flow diagram of another notacoria minimizing technology provided in an embodiment of the present invention, the notacoria minimizing technology
It can be used for removing the protective film of the area to be bent at the display panel back side.Referring to fig. 2, this method comprises:
Step 201 attaches protective film on the non-display face of display panel using ultraviolet cured adhesive.
In embodiments of the present invention, display panel can be single display panel or display master blank, and display master blank includes battle array
Arrange multiple display panels of arrangement.The step 201 is illustrated so that display panel is single display panel as an example.Fig. 3 is this hair
The signal after protective film 103 is attached on a kind of non-display face (not marking in Fig. 3) in display panel 101 that bright embodiment provides
Figure, referring to Fig. 3, protective film 103 is attached on the non-display face of display panel 101 by ultraviolet cured adhesive 102, display panel
101 include that the display surface being oppositely arranged and non-display face, display surface perform image display, and non-display face is shown without image,
The non-display face is also referred to as the back side.Wherein, display panel 101 can be flexible display panels, on display panel 101 with ultraviolet light
The one side that solidification glue 102 contacts can be polyimides (English: Polyimide；Referred to as: PI) film surface.
In embodiments of the present invention, guarantor can be attached on the non-display face of display panel 101 by film attachment process
Cuticula 103.It is alternatively possible to the coating ultraviolet light curing glue 102 on the non-display face of display panel 101, then by protective film
103 one sides for being coated with ultraviolet cured adhesive 102 with display panel 101 align, and apply to protective film 103 and attach power, make to protect
Cuticula 103 is attached on the non-display face of display panel 101.
Step 202 carries out curing process to the display panel for being pasted with protective film, makes the area to be bent of display panel
Ultraviolet cured adhesive is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state, and region to be solidified is
Region on display panel in addition to area to be bent.
Wherein, display panel has the area Pad, and area to be bent can be located in the area Pad.In embodiments of the present invention, may be used
To carry out curing process to the display panel for being pasted with protective film using any one method in following two methods.
First method it illustrates provided in an embodiment of the present invention as shown in figure 4, a kind of show to being pasted with protective film
Show that panel carries out the method flow diagram of curing process, this method comprises:
Sub-step 2021a, light shield layer is formed in corresponding region of the area to be bent on protective film.
Wherein, light shield layer can be photomask, form light shield layer in corresponding region of the area to be bent on protective film
It is: attaches photomask in corresponding region of the area to be bent on protective film.
Fig. 5 is a kind of pair area to be bent (not marking in Fig. 5) on protective film 103 provided in an embodiment of the present invention
Answer region to attach the schematic diagram after photomask 104, referring to Fig. 5, can by film attachment process in display panel 101 wait roll over
Corresponding region of the curved region on protective film 103 attaches photomask 104, when implementing, by photomask 104 and can be pasted with guarantor
The display panel 101 of cuticula 103 aligns, and is protecting orthographic projection region and area to be bent of the photomask 104 on protective film 103
Corresponding region on cuticula 103 is overlapped, backward photomask 104 application pressure, so that photomask 104 is attached to area to be bent and exist
On corresponding region on protective film 103.As shown in fig. 6, it illustrates one kind provided in an embodiment of the present invention in area to be bent
The corresponding region of (not marking in Fig. 6) on protective film 103 attaches the schematic diagram of photomask 104, and photomask 104 can be carried on
In substrate film layer (being not shown in Fig. 6), and there is alignment mark M1 on photomask 104, there is alignment mark on protective film 103
M2, can be right by photomask 104 and the display panel 101 that is pasted with protective film 103 according to alignment mark M1 and alignment mark M2
Position, photomask 104 be pasted with protective film 103 display panel 101 align after, photomask 104 on protective film 103 just
View field is overlapped with corresponding region of the area to be bent on protective film 103, backward photomask 104 apply pressure, make to hide
Light film 104 is attached to area to be bent on the corresponding region on protective film 103, is finally peeled away the substrate film layer of photomask 104,
So far the attaching of photomask 104 is completed.
It should be noted that Fig. 5 and Fig. 6 are illustrated by taking the single display panel of display panel as an example, the present invention
Embodiment can also attach protective film, and the correspondence area in the area to be bent of display master blank on protective film on display master blank
Domain attaches photomask.Fig. 7 is a kind of pair in the area to be bent of display master blank on protective film provided in an embodiment of the present invention
Region is answered to attach the schematic diagram of photomask, Fig. 8 is that a kind of area to be bent in display master blank provided in an embodiment of the present invention exists
Corresponding region on protective film attaches the schematic diagram after photomask, and in conjunction with Fig. 7 and Fig. 8, display master blank includes the more of array arrangement
A display panel 101, multiple display panel 101 are arranged in multirow, and each display panel 101 has area to be bent (Fig. 7
With do not marked in Fig. 8), the area to be bent of the areas to be bent of all display panels 101 composition display master blank, multiple strips
Photomask 104 be carried on same substrate film layer (not marked in Fig. 7 and Fig. 8), and in the substrate film layer have register guide
Remember M1, being attached on the protective film 103 on display master blank has alignment mark M2, can be according to alignment mark M1 and alignment mark
The substrate film layer for carrying photomask 104 is aligned with the display master blank for being pasted with protective film 103, is made in multiple photomasks 104 by M2
Orthographic projection region of each photomask 104 on protective film 103 and a line display panel 101 area to be bent in protective film
Corresponding region on 103 is overlapped, and is applied pressure to multiple photomasks 104 by substrate film layer later, is pasted multiple photomasks 104
The area to be bent of display master blank is attached on the corresponding region on protective film 103, is finally peeled away substrate film layer, so far completes to hide
The attaching of light film 104.Optionally, as shown in fig. 7, substrate film layer and protective film 103 are rectangular configuration, four of substrate film layer
Angle is provided with alignment mark M1, and four angles of protective film 103 are provided with alignment mark M2.In embodiments of the present invention, phase
For attaching photomask on single display panel, attachment process can be reduced by attaching photomask on display master blank, be shortened
Tact time。
It should also be noted that, the embodiment of the present invention is the correspondence with the area to be bent in display panel on protective film
Region attaches photomask, and using photomask as light shield layer for be illustrated, in practical application, guarantor can also be pasted with
Light screening material is deposited on the display panel of cuticula, then light screening material is handled by patterning processes, in display panel
Corresponding region of the area to be bent on protective film form light shield layer, details are not described herein for the embodiment of the present invention.
Sub-step 2022a, the display panel that light shield layer is formed with using ultraviolet light, make the ultraviolet light of area to be bent
Solidification glue is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state.
After Fig. 9 is a kind of display panel 101 for being formed with light shield layer using ultraviolet light provided in an embodiment of the present invention
Schematic diagram, the Fig. 9 by light shield layer be photomask 104 for be illustrated.Referring to Fig. 9, can be pasted in display panel 101
Ultraviolet source (being not shown in Fig. 9) is arranged in the side of photomask 104, and the ultraviolet light for launching ultraviolet source is being pasted with
On the display panel 101 of photomask 104, UV light permeability protective film 103 is radiated at region (Fig. 9 to be solidified of display panel 101
In do not mark) ultraviolet cured adhesive 1021 on, the ultraviolet cured adhesive 1021 in the region to be solidified of display panel 101 is ultraviolet
It is cured reaction under the action of light, is ultimately at solid state；Since photomask 104 blocks ultraviolet light, display surface
The ultraviolet cured adhesive 1022 of the area to be bent (not marking in Fig. 9) of plate 101 can not solidify, the ultraviolet light of the area to be bent
Solidification glue 1022 is in uncured state.
It should be noted that can also be formed with the display master blank of light shield layer using ultraviolet light in practical application, make
The ultraviolet cured adhesive of the area to be bent of display master blank is in uncured state, the ultraviolet light in the region to be solidified of display master blank
Solidification glue is in solid state, realizes that process can refer to Fig. 9, details are not described herein for the embodiment of the present invention.
Second method is as shown in Figure 10, and it illustrates provided in an embodiment of the present invention another to being pasted with protective film
Display panel carries out the method flow diagram of curing process, this method comprises:
Sub-step 2021b, mask plate is set in the side that display panel is pasted with protective film, makes the lightproof area of mask plate
It is aligned with area to be bent, transmission region and regional alignment to be solidified.
As shown in figure 11, it illustrates provided in an embodiment of the present invention a kind of to the display panel for being pasted with protective film 103
101 schematic diagrames being exposed, mask plate 30 can be arranged in display panel 101 be formed with protective film 103 side it is upper
Side aligns mask plate 30 and display panel 101, the lightproof area 301 of mask plate 30 and the area to be bent of display panel 101
(not marking in Figure 11) alignment, the transmission region 302 of mask plate 30 (are not marked with the region to be solidified of display panel 101 in Figure 11
It is aligned out), it is using fixed frame (being not shown in Figure 11) that mask plate 30 is fixed later.
Sub-step 2022b, display panel is irradiated by mask plate using ultraviolet light, solidifies the ultraviolet light of area to be bent
Glue is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state.
As shown in figure 11, ultraviolet source (being not shown in Figure 11) can be set in the top of mask plate 30, makes ultraviolet source
The ultraviolet light launched irradiates the display panel 101 for being pasted with photomask 104 by mask plate 30, and ultraviolet light successively penetrates exposure mask
The transmission region 302 and protective film 103 of plate 30 are radiated at the ultraviolet of the region to be solidified (not marking in Figure 11) of display panel 101
On optic-solidified adhesive 1021, the ultraviolet cured adhesive 1021 in the region to be solidified of display panel 101 occurs under the action of uv light
Curing reaction is ultimately at solid state；Since the lightproof area 301 of mask plate 30 blocks ultraviolet light, display panel
The ultraviolet cured adhesive 1022 of 101 area to be bent (not marking in Figure 11) can not solidify, the ultraviolet light of the area to be bent
Solidification glue 1022 is in uncured state.
It should be noted that the second method is illustrated by taking single display panel as an example, it, should in practical application
Second method can also execute on the display master blank for be pasted with protective film, realize that process can refer to the present embodiment, herein
It repeats no more.It should also be noted that, the second method can carry out in exposure machine when actual implementation.
Step 203, the protective film for removing area to be bent.
Since in step 202, the ultraviolet cured adhesive of the area to be bent of display panel is uncured, therefore can remove
The protective film of the area to be bent of display panel.It should be noted that before the protective film of removing area to be bent, Ke Yixian
Protective film is cut in boundary line along area to be bent, removes the protective film of area to be bent again later.It is alternatively possible to
Protective film is cut along the boundary line of area to be bent using laser, and can be to the display panel for being pasted with protective film
Protective film is cut after being solidified, protective film can also be cut in module set section, the embodiment of the present invention is to this
Without limitation.
As shown in figure 12, it illustrates a kind of protective films 103 for removing area to be bent provided in an embodiment of the present invention
Schematic diagram can be aobvious using the removing of exfoliation tool 20 after protective film 103 is cut in the boundary line along area to be bent
The protective film 103 for showing the area to be bent (not marking in Figure 12) of panel 101, in the area to be bent of Peeled display panel 101
Protective film 103 while, the ultraviolet cured adhesive 1022 of the area to be bent, and the protective film positioned at the area to be bent
Light shield layer 104 on 103 is stripped.Wherein, exfoliation tool 20 can be stripping blade etc..It should be noted that the Figure 12
It is to be illustrated for attaching photomask 104 on protective film 103 and being blocked to ultraviolet light, when use mask plate is to aobvious
Guarantor when showing that the protective film 103 of the area to be bent of panel 101 is blocked, in the area to be bent of Peeled display panel 101
While cuticula 103, the ultraviolet cured adhesive 1022 of the area to be bent is stripped.
It is alternatively possible to which the protective film in the area to be bent of module set section Peeled display panel, that is to say, to display surface
When plate carries out bending, the protective film of the area to be bent of first Peeled display panel, then bending is carried out, it in this way can be purple to avoid solidification
The lead of the area to be bent of producing line technique damage display panel after outer optic-solidified adhesive.In addition, in practical application, when above-mentioned
Step 201 and step 202 on display master blank when carrying out, and before the step 203, can be cut to obtain to display master blank
Multiple display panels, then the protective film of the area to be bent of each display panel in multiple display panels is removed in removing.
Step 204, using plasma clean area to be bent.
Figure 13 be a kind of pair of display panel 101 provided in an embodiment of the present invention area to be bent (being not shown in Figure 13) into
Schematic diagram after row cleaning, can be bombarded with area to be bent of the using plasma to display panel 101, should with removal
The remaining ultraviolet cured adhesive in area to be bent, to be cleaned to the remaining ultraviolet cured adhesive in the area to be bent.By
The area to be bent of display panel 101 is dry after plasma clean, and therefore, using plasma treats flex area
Domain is cleaned, and the lead of the area to be bent of display panel 101 can be damaged to avoid cleaning process.
In conclusion notacoria minimizing technology provided in an embodiment of the present invention, due to using ultraviolet cured adhesive in display surface
When attaching protective film on the non-display face of plate, and carrying out curing process to the display panel for being pasted with protective film, only have cured to
The ultraviolet cured adhesive of consolidation zone, and the ultraviolet cured adhesive of uncured area to be bent, therefore the guarantor of the area to be bent
Cuticula can be removed directly, without carrying out laser burn, laser burn process is avoided to damage display panel, improve product yield,
And the protective film attaching glue residua of area to be bent is uniform, the stress of bending process is uniform, therefore, the effect of the notacoria minimizing technology
Fruit is preferable.
Method provided in an embodiment of the present invention is when removing the protective film of area to be bent of display panel, it is only necessary to remove
Protective film simultaneously cleans remaining ultraviolet cured adhesive, without carrying out laser burn, therefore will not damage display panel,
Guarantee the yield of product.In addition, this method can also be by the thickness of control ultraviolet cured adhesive, to make the area display panel Pad
Lead be located at central core, maximally reduce influence of the bending process to the lead in the area display panel Pad.The present invention is implemented
Example no longer needs to attach protective film, therefore, this method after the protective film of the protective film of the area to be bent of removal display panel
Tact time can be shortened, improve the production capacity of producing line, and due to be after the entire back side of display panel attaches protective film,
Local removal is carried out again, and therefore, the notacoria attaching precision of this method is lower, and lower to attachment process requirement, cost is relatively low.
It should be noted that notacoria minimizing technology provided in an embodiment of the present invention is to remove the display panel back side with part
It is illustrated for protective film, but application of the invention is not limited thereto, notacoria minimizing technology provided by the invention can
To be suitable for the scene of any required part removal film layer, details are not described herein.
Following embodiments for notacoria removal device provided by the invention, the notacoria removal device can be used for executing this hair
The notacoria minimizing technology that bright embodiment of the method provides.For undisclosed details in notacoria removal device embodiment of the present invention, ask
Referring to notacoria minimizing technology embodiment of the present invention.
Figure 14 is a kind of block diagram of notacoria removal device 40 provided in an embodiment of the present invention, which can be with
For executing the notacoria minimizing technology of Fig. 1 or embodiment illustrated in fig. 2 offer, referring to Figure 14, which be can wrap
It includes but is not limited to:
Module 401 is attached, for attaching protective film on the non-display face of display panel using ultraviolet cured adhesive；
Curing module 402, for be pasted with protective film display panel carry out curing process, make display panel wait roll over
The ultraviolet cured adhesive in curved region is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state, to solid
Changing region is the region on display panel in addition to area to be bent；
Strip module 403, for removing the protective film of area to be bent.
In conclusion notacoria removal device provided in an embodiment of the present invention, uses ultraviolet cured adhesive due to attaching module
Protective film is attached on the non-display face of display panel, curing module carries out curing process to the display panel for being pasted with protective film
When, only have cured the ultraviolet cured adhesive in region to be solidified, and the ultraviolet cured adhesive of uncured area to be bent, therefore remove
Module can directly remove the protective film of the area to be bent, without carrying out laser burn, avoid the damage of laser burn process aobvious
Showing panel, and the protective film attaching glue residua of area to be bent is uniform, the stress of bending process is uniform, therefore, notacoria removal
The effect of device is preferable.
Optionally, as shown in figure 15, it illustrates a kind of block diagrams of curing module 402 provided in an embodiment of the present invention, should
Curing module 402 includes:
Lightproof unit 4021, for forming light shield layer in corresponding region of the area to be bent on protective film；
Illumination unit 4022 makes area to be bent for being formed with the display panel of light shield layer using ultraviolet light
Ultraviolet cured adhesive is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state.
Optionally, lightproof unit 4021, for attaching photomask in corresponding region of the area to be bent on protective film.
Optionally, lightproof unit 4021 are used for:
By photomask be pasted with protective film display panel align, make orthographic projection region of the photomask on protective film with
Corresponding region of the area to be bent on protective film is overlapped；
Apply pressure to photomask, photomask is made to be attached to area to be bent on the corresponding region on protective film.
Optionally, curing module 402 are used for:
Mask plate is set in the side that display panel is pasted with protective film, makes lightproof area and the area to be bent of mask plate
Alignment, transmission region and regional alignment to be solidified；
Display panel is irradiated by mask plate using ultraviolet light, the ultraviolet cured adhesive of area to be bent is made to be in uncured
The ultraviolet cured adhesive of state, region to be solidified is in solid state.
Optionally, as shown in figure 16, it illustrates the frames of another notacoria removal device 40 provided in an embodiment of the present invention
Figure, on the basis of Figure 14, the notacoria removal device 40 further include:
Cleaning module 404, for after the protective film of removing area to be bent, using plasma to be to area to be bent
It is cleaned.
Optionally, display panel is display master blank or single display panel, and display master blank includes the multiple aobvious of array arrangement
Show panel.
Optionally, display panel is display master blank, and display master blank includes multiple display panels of array arrangement, each display
Panel has area to be bent,
As shown in figure 17, it illustrates the block diagram of another notacoria removal device 40 provided in an embodiment of the present invention, scheming
On the basis of 16, the notacoria removal device 40 further include:
Cutting module 405, for cutting, obtaining to display master blank before the protective film of removing area to be bent
Multiple display panels；
Strip module 403, for removing the area to be bent of each display panel in multiple display panels in module set section
Protective film.
Optionally, strip module 403 are used for:
Protective film is cut boundary line along area to be bent；
Remove the protective film of area to be bent.
In conclusion notacoria removal device provided in an embodiment of the present invention, uses ultraviolet cured adhesive due to attaching module
Protective film is attached on the non-display face of display panel, curing module carries out curing process to the display panel for being pasted with protective film
When, only have cured the ultraviolet cured adhesive in region to be solidified, and the ultraviolet cured adhesive of uncured area to be bent, therefore remove
Module can directly remove the protective film of the area to be bent, without carrying out laser burn, avoid the damage of laser burn process aobvious
Showing panel, and the protective film attaching glue residua of area to be bent is uniform, the stress of bending process is uniform, therefore, notacoria removal
The effect of device is preferable.
The embodiment of the invention also provides a kind of display device, which includes display panel, display panel it is non-
Protective film is pasted on display surface, display panel has area to be bent, and the lead district of display panel is along area to be bent bending
To the non-display face of display panel, and the protective film of area to be bent is using first aspect or any optional way of first aspect
Method removal.Wherein, which can be flexible display apparatus, can be smart phone, tablet computer, TV
Any products or components having a display function such as machine, display, laptop, Digital Frame or navigator.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely alternative embodiments of the invention, are not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of notacoria minimizing technology, which is characterized in that the described method includes:
Protective film is attached on the non-display face of display panel using ultraviolet cured adhesive；
Curing process is carried out to the display panel for being pasted with the protective film, makes the ultraviolet of the area to be bent of the display panel
Optic-solidified adhesive is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state, and the region to be solidified is
Region on the display panel in addition to the area to be bent；
Remove the protective film of the area to be bent.
2. the method according to claim 1, wherein solidifying to the display panel for being pasted with the protective film
Processing makes the ultraviolet cured adhesive of the area to be bent of the display panel be in uncured state, region to be solidified it is ultraviolet
Optic-solidified adhesive is in solid state, comprising:
Light shield layer is formed in corresponding region of the area to be bent on the protective film；
The display panel of the light shield layer is formed with using ultraviolet light, at the ultraviolet cured adhesive for making the area to be bent
Solid state is in the ultraviolet cured adhesive of uncured state, the region to be solidified.
3. according to the method described in claim 2, it is characterized in that, correspondence in the area to be bent on the protective film
Region forms light shield layer, comprising:
Photomask is attached in corresponding region of the area to be bent on the protective film.
4. according to the method described in claim 3, it is characterized in that, correspondence in the area to be bent on the protective film
Region attaches photomask, comprising:
Photomask is aligned with the display panel for being pasted with the protective film, makes positive throwing of the photomask on the protective film
Shadow zone domain is overlapped with corresponding region of the area to be bent on the protective film；
Apply pressure to the photomask, the photomask is made to be attached to correspondence of the area to be bent on the protective film
On region.
5. the method according to claim 1, wherein solidifying to the display panel for being pasted with the protective film
Processing makes the ultraviolet cured adhesive of the area to be bent of the display panel be in uncured state, region to be solidified it is ultraviolet
Optic-solidified adhesive is in solid state, comprising:
Mask plate is set in the side that the display panel is pasted with the protective film, makes lightproof area and the institute of the mask plate
State area to be bent alignment, transmission region and the regional alignment to be solidified；
Using ultraviolet light by the mask plate irradiation display panel, at the ultraviolet cured adhesive for making the area to be bent
Solid state is in the ultraviolet cured adhesive of uncured state, the region to be solidified.
6. the method according to claim 1, wherein after the protective film for removing the area to be bent, institute
State method further include: using plasma cleans the area to be bent.
7. method according to any one of claims 1 to 6, which is characterized in that the display panel is for display master blank or individually
Display panel, the display master blank include multiple display panels of array arrangement.
8. method according to any one of claims 1 to 6, which is characterized in that the display panel is display master blank, described aobvious
Showing that motherboard includes multiple display panels of array arrangement, each display panel has area to be bent,
Before the protective film for removing the area to be bent, the method also includes:
The display master blank is cut, multiple display panels are obtained；
The protective film of the removing area to be bent, comprising: in module set section, remove and each shown in the multiple display panel
Show the protective film of the area to be bent of panel.
9. a kind of notacoria removal device, which is characterized in that the notacoria removal device includes:
Module is attached, for attaching protective film on the non-display face of display panel using ultraviolet cured adhesive；
Curing module, for be pasted with the protective film display panel carry out curing process, make the display panel to
The ultraviolet cured adhesive of bending region is in uncured state, and the ultraviolet cured adhesive in region to be solidified is in solid state, institute
Stating region to be solidified is the region on the display panel in addition to the area to be bent；
Strip module, for removing the protective film of the area to be bent.
10. a kind of display device, which is characterized in that the display device includes display panel, the display panel it is non-display
Protective film is pasted on face, the display panel has area to be bent, and the lead district of the display panel is along described to bending
Region bending is to the non-display face of the display panel, and the protective film of the area to be bent is any using claim 1 to 8
The method removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810824517.0A CN109178516B (en) | 2018-07-25 | 2018-07-25 | Back film removing method and device and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810824517.0A CN109178516B (en) | 2018-07-25 | 2018-07-25 | Back film removing method and device and display device |
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| CN109178516A true CN109178516A (en) | 2019-01-11 |
| CN109178516B CN109178516B (en) | 2020-11-24 |
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| CN109178516B (en) | 2020-11-24 |
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