CN110197618B - Laminating method of curved-surface display panel - Google Patents
Laminating method of curved-surface display panel Download PDFInfo
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- CN110197618B CN110197618B CN201910576632.5A CN201910576632A CN110197618B CN 110197618 B CN110197618 B CN 110197618B CN 201910576632 A CN201910576632 A CN 201910576632A CN 110197618 B CN110197618 B CN 110197618B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Abstract
The invention provides a laminating method of a curved-surface display panel, which solves the problem that the existing laminating method is easy to generate the tilting between film layers, so that bubbles are generated after lamination. The method comprises the following steps: attaching a guide film to one side of the film layer structure; pulling the guide film along the direction close to the film layer structure to enable the edge of the film layer structure to have a preset radian; the guide film moves in a direction close to the cover plate, and the guide film is in contact with the cover plate part; extruding the film layer structure and the guide film through a laminating mechanism, and laminating all the guide film on the cover plate; and removing the peripheral edge part of the guide film to make the periphery of the guide film flush with the periphery of the film layer structure.
Description
Technical Field
The invention relates to the technical field of curved surface display panel bonding, in particular to a bonding method of a curved surface display panel.
Background
Currently, with the development of curved screens, curved display panels have become the standard configuration of various large mobile phone manufacturers. But curved surface laminating has the lower problem of yield, and especially the arc angle is the apron of right angle, and in the laminating process, there is following problem mainly: each rete of the body of the screen bears the pulling force of guide membrane among the laminating process, can lead to the rete or peel off between rete and the guide membrane, causes the rete perk that corresponds curved surface department, and this kind of perk has leaded to apron circular arc department can be because the rete contacts the circular arc end earlier and produce between being closed, and then leads to the bubble. At present, the mainstream attaching mode is that soft to soft attaching is followed by unified attaching to the curved surface cover plate, relative sliding between the films at the arc positions can superpose attaching errors, and no effective means is provided for removing generated bubbles.
Disclosure of Invention
In view of the above, the present invention provides a method for attaching a curved display panel, which solves the problem that bubbles are generated after attachment due to the fact that the existing attaching method is prone to generate inter-film layer tilting.
The laminating method of the curved-surface display panel provided by the embodiment of the invention comprises the following steps: attaching a guide film to one side of the film layer structure; pulling the guide film along the direction close to the film layer structure to enable the edge of the film layer structure to have a preset radian; the guide film moves in a direction close to the cover plate, and the guide film is in contact with the cover plate part; extruding the film layer structure and the guide film through a laminating mechanism, and laminating all the guide film on the cover plate; and removing the peripheral edge part of the guide film to make the periphery of the guide film flush with the periphery of the film layer structure.
In one embodiment, the laminating mechanism is a profiling ram, and pulling the guide film in a direction proximate to the film layer structure to impart the predetermined curvature to the guide film comprises: and after the profiling pressure head is contacted with the film layer structure, pulling the guide film along the direction close to the film layer structure to enable the guide film to have a preset radian.
In one embodiment, the guide film is a polarizer; or the film structure comprises a polarizer, wherein the guide film is attached to one side of the film structure and comprises: and attaching the guide film to one side of the polaroid.
In one embodiment, the film structure includes a polarizer, and the film structure further includes a screen, wherein attaching the guide film to one side of the film structure further includes: and attaching the polaroid to one side of the screen body.
In one embodiment, attaching the guide film to one side of the film layer structure comprises: and attaching the guide film to one side of the polaroid, which is far away from the screen body.
In one embodiment, the film layer structure further comprises: bubble cotton and touch-control layer, its characterized in that will guide the membrane laminating and be in the polaroid is kept away from one side of the screen body, preceding, further includes: attaching a screen body to one side of the foam; attaching a touch layer to one side of the screen body, which is far away from the foam; and attaching the polaroid to one side of the touch layer, which is far away from the screen body.
In one embodiment, the cover plate includes a vent hole, and moving the attaching mechanism in a direction close to the cover plate to attach a portion of the guide film to the cover plate, and pressing the film layer structure and the guide film by the attaching mechanism to attach the guide film to the cover plate entirely includes: arranging an optical adhesive layer on one side of the guide film far away from the film layer structure; moving the attaching mechanism in a direction close to the cover plate to attach the central part of the guide film to the cover plate; and will laminating mechanism moves along being close to the direction of apron, makes laminating mechanism fills completely the apron is close to in one side of guide membrane, through laminating structure is right the rete structure with guide membrane applys pressure, makes guide membrane laminating completely on the apron, wherein optical adhesive layer produces deformation under the effect of pressure and fills in the exhaust vent, will the air escape in the exhaust vent.
In one embodiment, disposing an optical glue layer on a side of the guide film remote from the film layer structure comprises: the thickness of the optical adhesive layer corresponding to the edge position of the guide film is larger than that of the optical adhesive layer corresponding to the rest part of the guide film.
In one embodiment, the optical cement is a liquid optical cement.
In one embodiment, the guide film includes a tear line and a pre-stressed aperture, wherein removing the peripheral edge portion of the guide film includes applying a force from the pre-stressed aperture to tear the peripheral edge portion of the guide film along the tear line.
The laminating method of the curved surface display panel provided by the embodiment of the invention comprises the following steps of laminating a guide film on one side of a film layer structure; pulling the guide film along the direction close to the film layer structure to enable the edge of the film layer structure to have a preset radian; the guide film moves in a direction close to the cover plate, and the guide film is in contact with the cover plate part; extruding the film layer structure and the guide film through a laminating mechanism, and laminating all the guide film on the cover plate; and removing the peripheral edge part of the guide film to make the periphery of the guide film flush with the periphery of the film layer structure. Apply pressure to the rete structure in the direction that is close to the rete structure through using the guide membrane, all bear pressure between each rete of rete structure, consequently, it is inseparabler to laminate between each rete of rete structure, keep the relative position between the rete structure more easily, consequently, can not produce deformation and the scheduling problem of perk, and because the guide membrane is to the rete structure pressure application, make the rete structure have and predetermine the radian, can guarantee when laminating guide membrane and rete structure on the apron, the marginal portion of guide membrane and the marginal portion of apron do not contact earlier, consequently can not form inclosed space because the marginal portion of guide membrane and the marginal portion of apron contact earlier after, lead to the existence of laminating in-process gas, thereby the production of laminating in-process bubble has been reduced.
Drawings
Fig. 1 is a flowchart illustrating a method for attaching a curved display panel according to an embodiment of the present invention.
Fig. 2 is a schematic view illustrating a bonding process of a curved display panel according to an embodiment of the invention.
Fig. 3 is a schematic view illustrating a bonding process of a curved display panel according to an embodiment of the invention.
Fig. 4 is a schematic view illustrating a bonding process of a curved display panel according to an embodiment of the invention.
Fig. 5 is a flowchart illustrating a method for attaching a curved display panel according to an embodiment of the present invention.
Fig. 6 is a flowchart illustrating a method for attaching a curved display panel according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of an exhaust hole according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of an exhaust hole according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a pre-stressed opening and a tear line according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart illustrating a method for attaching a curved display panel according to an embodiment of the present invention. Fig. 2 is a schematic view illustrating a bonding process of a curved display panel according to an embodiment of the invention. Fig. 3 is a schematic view illustrating a bonding process of a curved display panel according to an embodiment of the invention. Fig. 4 is a schematic view illustrating a bonding process of a curved display panel according to an embodiment of the invention.
As shown in fig. 1, the method for attaching a curved display panel includes:
step 01: the guide film 3 is attached to one side of the film layer structure 2. Wherein, curved surface display panel can include rete structure 2 and apron 4, need laminate rete structure 2 on apron 4 in technology production, and rete structure 2 includes at least one rete, and this rete can be for the screen body, touch-control layer or polarisation layer etc.. The effect of guide membrane 3 is laminated for guide membranous layer structure 2, will guide the laminating of membrane 3 in one side of membranous layer structure 2, can prevent to guide sliding of position because the atress appears between membrane 3 and the membranous layer structure 2 at the laminating in-process, influences the precision of laminating.
It is understood that the film structure 2 may also be a single film layer or a plurality of film layers, the specific structure of the film structure 2 may be adjusted according to the actual product, and the specific structure of the film structure 2 is not limited in the present invention.
It can also be understood that the guide film 3 and the film structure 2 can be bonded by optical glue or other substances with viscosity, and what kind of substance is used between the guide film 3 and the film structure 2 can be selected according to actual requirements.
Step 02: the guide membrane 3 is pulled (as shown in fig. 2) in a direction close to the membrane layer structure 2 so that the edge of the membrane layer structure 2 has a predetermined curvature. Draw guide membrane 3 along the direction that is close to membranous layer structure 2, make guide membrane 3 to membranous layer structure 2 exerting pressure, all bear pressure between each rete of membranous layer structure 2, consequently laminating between each rete of membranous layer structure 2 is inseparabler, because compare prior art, the atress of membranous layer structure 2 becomes pressure, consequently keeps the relative position between each rete of membranous layer structure 2 more easily, consequently can not produce deformation and stick up scheduling problem. And because draw the guide membrane 3 along the direction that is close to membranous layer structure 2, make the guide membrane 3 exert pressure to membranous layer structure 2, thereby make the edge of membranous layer structure 2 form one and predetermine the radian, because the laminating of guide membrane 3 is on membranous layer structure 2, also have on the guide membrane 3 with the corresponding position in membranous layer structure 2 edge and predetermine the radian, should predetermine the radian and can guarantee to guide membrane 3 and membranous layer structure 2 when laminating on apron 4, the edge part of guide membrane 3 and the edge part of apron 4 do not contact earlier, consequently can not because the edge part of guide membrane 3 and the edge part of apron 4 contact earlier and then form inclosed space, lead to the existence of laminating in-process gas, thereby the production of laminating in-process bubble has been reduced.
Pulling the guide membrane 3 in a direction close to the membrane layer structure 2 may comprise: the peripheral edge portion of the guide film 3 is gripped by the gripping jaws 6, and the gripping jaws 6 are moved in a direction to approach the film layer structure 2. Through the pulling force of clamping jaw 6 to the direction that is close to rete structure 2 that the guiding film 3 applyed, make guiding film 3 exert pressure to rete structure 2, use clamping jaw 6 to clip and draw guiding film 3, can be more firm, prevent to appear clamping jaw 6 and the problem that guiding film 3 breaks away from at the in-process of drawing.
It can also be understood that clamping the guide film 3 by the clamping jaws 6 can use a plurality of clamping jaws 6, the uniform distribution is at the edge of the periphery of the guide film 3, the edge of the periphery of the guide film 3 is clamped by the clamping jaws 6, and meanwhile, the guide film 3 moves along the direction close to the film layer structure 2, so that the tension born by each part of the guide film 3 is uniform, the smoothness of the attaching surface is ensured, and the product yield is improved. The number of the clamping jaws 6 can be adjusted according to the actual product size, and the number of the clamping jaws 6 is not limited by the invention.
It can be understood that the specific size of the preset radian can be set according to the shape of the curved surface of the cover plate 4, and as long as the preset radian is smaller than the radian of the cover plate 4, the edge part of the guide film 3 does not contact with the edge part of the cover plate 4 to form a closed space, which causes the existence of gas in the attaching process.
Step 03: the guide film 3 moves in a direction approaching the cover plate 4 (as shown in fig. 3), and the guide film 3 partially contacts the cover plate 4. When will guide membrane 3 and remove along the direction of apron 4, can continue to draw and draw guide membrane 3 and exert pressure to membranous layer structure 2, that is to say, this moment guide membrane 3 bears simultaneously along being close to 4 directions of apron power and the power that is close to 2 directions of membranous layer structure, guide membrane 3 to the direction motion of being close to apron 4 when being close to 4 directions of apron power, the power that is close to 2 directions of membranous layer structure makes guide membrane 3 exert pressure to membranous layer structure 2, make 2 edges of membranous layer structure have preset radian, the power that is close to 4 directions of apron is greater than the power that is close to 2 directions of membranous layer structure. The non-preset radian of the guide film 3 is in contact with the non-curved surface part of the cover plate 4, so that the edge part of the guide film 3 is not in contact with the edge part of the cover plate 4 first, and therefore, the existence of gas in the laminating process cannot be caused due to the fact that the edge part of the guide film 3 is in contact with the edge part of the cover plate 4 first and then a closed space is formed, and therefore the generation of bubbles in the laminating process is reduced.
It can be understood that the area of the partial contact of the guide film 3 and the cover plate 4 can be adjusted according to the actual situation, the partial contact of the guide film 3 and the cover plate 4 mainly draws the guide film 3, i.e. the film layer structure 2 carried by the guide film 3, to a preset arc, and the subsequent contact of the film layer structure 2 carried by the guide film 3 and the cover plate 4, and the specific area of the partial contact of the guide film 3 and the cover plate 4 is not limited by the present invention.
Step 04: the entire guide film 3 is attached to the cover plate 4 by pressing the film layer structure 2 and the guide film 3 by the attaching mechanism 1. The application mechanism 1 may apply a force to the film layer structure 2 from a side of the film layer structure 2 remote from the guide film 3. The film layer structure 2 can have elastic deformation, and in the force application process, the film layer is combined and the guide film 3 is completely extruded in the cover plate 4 due to the elastic deformation of the laminating mechanism 1, so that the guide film 3 is completely laminated on the cover plate 4. By adopting the method to attach the film layer structure 2 and the guide film 3 on the cover plate 4, the attachment can be firmer, and the generation of bubbles can be prevented.
It can be understood that the attaching mechanism 1 may be a roller or a silica gel block, the specific type of the attaching mechanism 1 may be selected according to the actual product, and the specific type of the attaching mechanism 1 is not limited in the present invention.
It can be understood that the cover plate 4 may be attached to the guide film 3 by using an optical adhesive, or the cover plate 4 may be attached to the guide film 3 by using other materials with adhesive properties, and what kind of material is used to attach the cover plate 4 to the guide film 3 may be selected according to actual requirements, and the invention is not limited to what kind of material is used to attach the cover plate 4 to the guide film 3.
Step 05: the peripheral edge portion of the guide film 3 is removed (as shown in fig. 4) so that the periphery of the guide film 3 is flush with the periphery of the film layer structure 2. Because the guide film 3 needs to be pulled, the surface area of the guide film 3 is larger than that of the film layer structure 2, the extra surface area can be located at the peripheral edge of the guide film 3, the peripheral edge part of the guide film 3 is used for fixing and applying force to the guide film 3 by hands or mechanical equipment, and after the step 03 is completed, the peripheral edge part of the guide film 3 can be removed, so that the periphery of the guide film 3 is flush with the periphery of the film layer structure 2, and the shape integrity of the curved display panel is ensured.
It is to be understood that the peripheral edge of the guide film 3 may be removed by tearing or cutting, and the present invention is not limited to the manner in which the peripheral edge of the guide film 3 is removed.
In an embodiment of the present invention, the applying mechanism 1 may be a profiling ram, and the step 02 of pulling the guiding film 3 in a direction close to the film structure 2 to make the guiding film 3 have a preset curvature includes: the profiling pressure head is contacted with the film layer structure 2, and then the guiding film 3 is pulled along the direction close to the film layer structure 2, so that the guiding film 3 has a preset radian. The profile modeling pressure head has the pressure head similar to the shape of the cover plate 4, the film layer structure 2 of the guide film 3 to be attached is contacted with the profile modeling pressure head, the shape of the profile modeling pressure head is similar to that of the cover plate 4, the guide film 3 is pulled along the direction close to the film layer structure 2, the guide film 3 can have the preset radian similar to that of the cover plate 4, and then the film layer 2 structure has the preset radian similar to that of the cover plate 4, so that the attachment is more facilitated, and the attachment effect is improved.
It can be understood that the preset radian may be the same as or smaller than the radian of the cover plate 4, and the size of the preset radian is not limited by the present invention.
In an embodiment of the present invention, the guide film 3 may be a polarizer, the polarizer is attached to one side of the film structure 2, the polarizer is pulled in a direction close to the film structure 2, so that the polarizer applies pressure to the film structure 2, the edges of the film structure 2 and the polarizer have a preset radian, the peripheral edge part of the polarizer is removed, the periphery of the polarizer is flush with the periphery of the film structure 2, the polarizer is used as the guide film 3, the thickness of the display panel is not increased, the display effect of the display panel is not affected, and the torn-off part of the polarizer may also be used for small-screen devices such as smart bracelets, smart watches, and the like, so that the waste of resources is not caused. Compared with the structure of the display panel in the prior art, the guide film 3 can be a newly added film layer, and the guide film 3 can be a high-temperature polyester film, and the high-temperature polyester film and the cover plate 4 have the same refractive index, so that the display effect of the display panel cannot be influenced.
It can be understood that the guide film 3 may be a polarizer or a newly added film, other functional modules may also be used as the guide film 3, and what kind of film is used as the guide film 3 may be selected according to actual production and requirements, and the invention does not limit what kind of film is used as the guide film 3.
In an embodiment of the invention, when the guide film 3 is a newly added film, the film structure 2 further includes a polarizer. When the film structure 2 includes a polarizer, the step 01 of attaching the guide film 3 to one side of the film structure 2 includes: the guide film 3 is attached to one side of the polarizer. With the laminating of guide film 3 on the polaroid, can guarantee when guide film 3 applys pressure to the polaroid, appear sliding between guide film 3 and the polaroid, lead to the skew of laminating position to influence the yield of product.
It can be understood that the lamination can be performed by using optical glue or other viscous substances, and the lamination by using any substance can be adjusted according to actual product requirements.
In an embodiment of the invention, the film structure 2 may further include a screen body, and the screen body is used for emitting display light. Before attaching the guide film 3 to one side of the film structure 2, attaching a polarizer to one side of the screen body is further included. Attaching the guide film 3 to one side of the film structure 2 includes attaching the guide film 3 to one side of the polarizer far from the screen body. That is to say, when guide membrane 3 is newly-increased rete, need accomplish the back with each rete laminating in the rete structure 2, again with guide membrane 3 laminating in one side of rete structure 2, guarantee when guide membrane 3 applys pressure to rete structure 2, appear leading the skew of position of laminating of appearing sliding between guide membrane 3 and the rete structure 2 to influence the yield of product.
It can be understood that the polarizer and the screen body can be attached by using optical cement, other sticky substances can be used for attachment, and the attachment by using any substance can be selected according to actual products.
Fig. 5 is a flowchart illustrating a method for attaching a curved display panel according to an embodiment of the present invention.
As shown in fig. 5, the film structure 2 further includes a foam and a touch layer, the foam can play a role in buffering, and the foam is disposed on one side of the screen body; the touch layer is arranged on the other side of the screen body, and the touch screen can realize a touch function; the polaroid is arranged on one side, far away from the screen body, of the touch layer. Based on above-mentioned membranous layer structure 2, will guide the laminating of membrane 3 and be in the polaroid is kept away from one side of the screen body can include:
step 06: and attaching the screen body to one side of the foam.
Step 07: and attaching the touch layer to one side of the screen body, which is far away from the foam.
Step 08: and attaching the polaroid to one side of the touch layer, which is far away from the screen body.
Foam, the screen body, touch-control layer and polaroid are laminated in proper order and are formed the mode layer structure, will guide the laminating of membrane 3 in one side of membranous layer structure 2 again, guarantee when guide membrane 3 applys pressure to membranous layer structure 2, appear leading and slide between membrane 3 and the membranous layer structure 2, lead to the skew of laminating position to influence the yield of product.
It can be understood that the bonding can be performed by adopting optical glue or other viscous substances, and the bonding by adopting which substance can be adjusted according to the actual product requirements.
It is further understood that the film layer structure 2 may include a screen body, a foam, and a touch screen, and may further include other film layer structures 2, and the present invention does not limit the specific included film layers of the film layer structure 2.
Fig. 6 is a flowchart illustrating a method for attaching a curved display panel according to an embodiment of the present invention. Fig. 7 is a schematic structural diagram of an exhaust hole 5 according to an embodiment of the present invention. Fig. 8 is a schematic structural diagram of an exhaust hole 5 according to an embodiment of the present invention.
The cover plate 5 may be a general cover plate or a cover plate including an exhaust hole. As shown in fig. 6, the cover plate may include a vent hole 5. Will laminate mechanism 1 and remove along the direction that is close to the apron, make the part of guide membrane 3 laminate mutually with apron 4, through laminating mechanism 1 to membranous layer structure 2 and guide membrane 3's extrusion, will guide the whole laminating of membrane 3 and include on apron 4:
step 09: set up optical cement layer 7 in the one side of leading membrane 3 to keep away from membranous layer structure 2, optical cement layer 7 is with pasting guide membrane 3 and apron 4. The transmittance of the optical adhesive layer 7 can be more than 99%, the refractive index can be 1.508, the viscosity is 1200cps, the cover plate 4 and the guide film 3 can be firmly adhered by the optical adhesive layer 7, and the optical adhesive layer 7 has good transmittance and the refractive index is close to that of the cover plate 4, so that the display effect of the display panel can not be influenced by using the optical adhesive layer 7.
It can be understood that the optical adhesive layers 7 made of different materials have different viscosities, different transmittances and different refractive indexes, and the optical adhesive layers 7 can be selected according to actual products and requirements, and the specific material of the optical adhesive layers 7 is not limited in the present invention.
It is also understood that the optical adhesive layer 7 can be disposed by coating or using a double-sided adhesive tape, and the present invention is not limited to the disposing manner of the optical adhesive layer 7.
Step 10: the bonding mechanism 1 is moved in a direction to approach the cover 4, and the center portion of the guide film 3 is bonded to the cover 4. The central part of the guide film 3, namely the non-preset radian part, is in contact with the non-curved surface part of the cover plate 4, so that the edge part of the guide film 3 is not in contact with the edge part of the cover plate 4 first, and therefore, the existence of gas in the laminating process can be avoided due to the fact that the edge part of the guide film 3 is in contact with the edge part of the cover plate 4 first and then a closed space is formed, and the generation of bubbles in the laminating process is reduced.
Step 11: move laminating mechanism 1 along the direction that is close to apron 4, make laminating mechanism 1 fill completely in apron 4 is close to one side of guide membrane 3, exert pressure to rete structure 2 and guide membrane 3 through the laminated structure, make guide membrane 3 laminate completely on apron 4, wherein in optical cement layer 7 produces deformation under the effect of pressure and fills into exhaust hole 5, with the air escape in the exhaust hole 5. And applying pressure to the cover plate 4 along the direction close to the guide film 3 to ensure that the cover plate 4 is attached to the guide film 3, and the optical adhesive layer 7 is filled into the exhaust holes 5 of the cover plate 4 to exhaust the air in the exhaust holes 5. The cover plate 4 includes an exhaust hole 5 thereon, and the exhaust hole 5 may be provided at a curved shape of the cover plate 4. Pressure is applied to the cover plate 4 along the direction close to the guide film 3, the cover plate 4 transmits the pressure to the optical adhesive layer 7 which is in close contact with the cover plate 4, and the optical adhesive layer 7 has fluidity or the optical adhesive layer 7 deforms after being subjected to the pressure, so that the optical adhesive layer is filled in the exhaust hole 5, and air in the exhaust hole 5 is exhausted. Because the curved surface shape of apron 4 is in the easy bubble that produces of laminating in-process, the one end setting of exhausting hole 5 is in the easy department that produces of bubble, the other end setting of exhausting hole 5 is at the end of apron 4, air between apron 4 and optical cement layer 7 is got rid of to optical cement layer 7 in the laminating process, thereby the production of bubble has been avoided, and because optical cement layer 7 fills in exhausting hole 5, the refracting index of optical cement layer 7 is the same or similar with apron 4, consequently the existence of exhausting hole 5 can not be seen in the vision, do not influence the display effect. And because exhaust hole 5 is in the arc department of apron 4, user experience such as the use of display panel is felt can not be influenced.
It should be understood that the optical adhesive layer 7 may be a liquid optical adhesive layer 7, or a gel optical adhesive layer, and the form of the optical adhesive layer 7 may be selected according to actual requirements, and the form of the optical adhesive is not limited in the present invention.
It should be understood that the diameter of the vent 5 of the cover plate 4 may be 0.1mm to 0.3mm, and may also be in other ranges, and the diameter of the vent 5 may be adjusted according to the actual product, and the diameter of the vent 5 is not limited in the present invention.
It can also be understood that 3-5 vent holes 5 can be arranged at the arc-shaped position of each side of the cover plate 4, or one vent hole 5 is arranged at intervals of 10mm, the specific arrangement number of the vent holes 5 can be adjusted according to the actual product, and the number of the vent holes 5 is not limited in the invention.
It is also understood that one end of the exhaust hole 5 is arranged at the end of the arc of the cover plate 4, the arrangement position of the other end of the exhaust hole 5 can be determined by finite element simulation, and the specific position of the exhaust hole 5 and the determination method of the specific position are not limited by the present invention.
It is also understood that the vent 5 may be a hole-like structure (as shown in fig. 7), wherein the vent 5 of the hole-like structure may be manufactured by using a split mold; the exhaust hole 5 may also be a groove-shaped structure (as shown in fig. 8), when the optical cement with poor fluidity is used for bonding, the exhaust hole 5 with the groove-shaped structure is easy to exhaust all gas, the manufacturing difficulty of the exhaust hole 5 with the groove-shaped structure is low, the implementation is easy, the specific structure of the exhaust hole 5 can be selected according to actual requirements, and the specific structure and the preparation method of the exhaust hole 5 are not limited in the invention.
In an embodiment of the present invention, disposing the optical adhesive layer 7 on the side of the guiding film 3 away from the film structure 2 includes: the thickness of the optical adhesive layer 7 corresponding to the edge position of the guide film 3 is larger than the thickness of the optical adhesive layer 7 corresponding to the rest of the guide film 3. Because membranous layer structure 2 has the edge that predetermines radian department and be located membranous layer structure 2, predetermine the arc department that radian department corresponds apron 4, consequently, it also the edge sets up optics glue film 7 in the preset radian department of membranous layer structure 2, can fill in exhaust hole 5 in the laminating in-process of apron 4, consequently, the thickness that sets up optics glue film 7 at membranous layer structure 2's edge is greater than the thickness that sets up optics glue film 7 at 2 other positions in membranous layer structure, after having pasted apron 4 and guide membrane 3, can guarantee that there are sufficient optics glue film 7 to be used for filling in exhaust hole 5, place the unable production that fills in exhaust hole 5 and cause the bubble of optics glue film 7, influence the product yield.
It can be understood that the thickness of the optical adhesive layer 7 coated on the edge of the film structure 2 may be 0.15mm to 0.2mm, and the thickness of the optical adhesive layer 7 coated on the rest of the film structure 2 may be 0.1 mm. The thickness of the optical adhesive layer 7 can be adjusted according to the actual product, and the invention does not limit the thickness of the optical adhesive layer 7.
Fig. 9 is a schematic structural diagram of a pre-stressed opening 8 and a tear line 9 according to an embodiment of the present invention.
As shown in fig. 9, the guide film 3 includes a tear line 9 and a pre-stressed aperture 8. As in the above-described embodiment, since the guide film 3 needs to be pulled, the surface area of the guide film 3 is larger than that of the film layer structure 2, and the extra surface area can be located at the peripheral edge of the guide film 3, and the peripheral edge portion of the guide film 3 is used for fixing and applying force to the guide film 3 by human hands or mechanical equipment. The tear line 9 may be provided at a boundary line of a portion of the guide film 3 that needs to be torn off and a portion that does not need to be torn off, and the pre-stressed opening 8 may be provided at least one end of the tear line 9. Removing the peripheral edge portion of the guide film 3 in step 04 may include applying a force from the pre-stressed apertures 8 to tear the peripheral edge portion of the guide film 3 along the tear lines 9. The easy-to-tear line 9 and the prestress hole 8 are arranged on the guide film 3, and when the clamping jaw 6 grabs the edge of the guide film 3 and pulls the guide film in the direction of the module structure during fitting, the easy-to-tear line 9 cannot be broken; after the laminating is finished, a mechanical arm or a manual force is applied from the prestressed hole 8, and the peripheral edge part of the guide film 3 can be torn off, so that an additional tool is not needed, the tearing-off step is simplified, and the operation is convenient and easy.
It can be understood that the peripheral edge portion of the guide film 3 may be torn off by providing the pre-stressed opening and the easy-to-tear line 9, or the peripheral edge portion of the guide film 3 may be torn off by other methods, and the specific method for tearing off the peripheral edge portion of the guide film 3 may be selected according to the actual product.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and the like that are within the spirit and principle of the present invention are included in the present invention.
Claims (10)
1. A method for attaching a curved display panel, comprising:
attaching a guide film to one side of a film layer structure, wherein the film layer structure comprises a plurality of film layers;
pulling the guide film along the direction close to the film layer structure to enable the edge of the film layer structure to have a preset radian;
the guide film moves in a direction close to the cover plate, and the guide film is in contact with the cover plate part;
extruding the film layer structure and the guide film through a laminating mechanism, and laminating all the guide film on the cover plate; and
and removing the peripheral edge part of the guide film to enable the periphery of the guide film to be flush with the periphery of the film layer structure, so as to obtain the curved surface display panel comprising the cover plate, the guide film and the film layer structure.
2. The method of claim 1, wherein the attaching mechanism is a profiling ram, and pulling the guide film in a direction close to the film structure to form the guide film with a predetermined curvature comprises: after the profiling pressure head is contacted with the film layer structure, the guiding film is pulled along the direction close to the film layer structure, so that the guiding film has a preset radian.
3. The method of claim 1, wherein the guide film is a polarizer; or the film structure comprises a polarizer, wherein the guide film is attached to one side of the film structure and comprises: and attaching the guide film to one side of the polaroid.
4. The method of claim 3, wherein the film structure comprises a polarizer, and wherein the film structure further comprises a screen, and wherein attaching the guide film to the side of the film structure further comprises: and attaching the polaroid to one side of the screen body.
5. The method of claim 4, wherein attaching the guide film to one side of the film structure comprises: and attaching the guide film to one side of the polaroid, which is far away from the screen body.
6. The method of claim 5, wherein the film structure further comprises: bubble cotton and touch-control layer, its characterized in that will guide the membrane laminating and be in the polaroid is kept away from one side of the screen body, preceding, further includes:
attaching a screen body to one side of the foam;
attaching a touch layer to one side of the screen body, which is far away from the foam; and
and attaching the polaroid to one side of the touch layer, which is far away from the screen body.
7. The method of claim 1, wherein the cover plate includes a vent hole, and wherein moving the attaching mechanism in a direction close to the cover plate to attach a portion of the guide film to the cover plate, and pressing the film layer structure and the guide film by the attaching mechanism to attach the guide film to the cover plate comprises:
arranging an optical adhesive layer on one side of the guide film far away from the film layer structure;
moving the attaching mechanism in a direction close to the cover plate to attach the central part of the guide film to the cover plate; and
will laminating mechanism moves along being close to the direction of apron, makes laminating mechanism fills completely the apron is close to in one side of guide membrane, through laminating structure is right the rete structure with guide membrane exerts pressure, makes guide membrane laminating completely on the apron, wherein optical adhesive layer produces deformation under the effect of pressure and fills in the exhaust hole, will the air escape in the exhaust hole.
8. The method of claim 7, wherein disposing an optical adhesive layer on a side of the guide film away from the film structure comprises: the thickness of the optical adhesive layer corresponding to the edge position of the guide film is larger than that of the optical adhesive layer corresponding to the rest part of the guide film.
9. The method of claim 8, wherein the optical adhesive layer is made of liquid optical adhesive.
10. The method of claim 1, wherein the guide film comprises a tear line and a pre-stressed opening, and wherein removing the peripheral edge portion of the guide film comprises applying a force from the pre-stressed opening to tear the peripheral edge portion of the guide film along the tear line.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576632.5A CN110197618B (en) | 2019-06-28 | 2019-06-28 | Laminating method of curved-surface display panel |
| PCT/CN2019/125672 WO2020258762A1 (en) | 2019-06-28 | 2019-12-16 | Curved display panel bonding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910576632.5A CN110197618B (en) | 2019-06-28 | 2019-06-28 | Laminating method of curved-surface display panel |
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| CN110197618B true CN110197618B (en) | 2020-08-25 |
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| CN110197618B (en) * | 2019-06-28 | 2020-08-25 | 云谷（固安）科技有限公司 | Laminating method of curved-surface display panel |
| CN112634749B (en) * | 2019-09-24 | 2022-08-23 | 北京小米移动软件有限公司 | Bubble removing method for attaching cover plate and curved screen, terminal equipment and assembling method of terminal equipment |
| CN111605282A (en) * | 2020-05-29 | 2020-09-01 | 昆山国显光电有限公司 | Flexible display panel attaching method and primary assembly |
| CN111739413A (en) * | 2020-06-03 | 2020-10-02 | Oppo广东移动通信有限公司 | Terminal device, flexible screen and flexible display substrate |
| CN111681539B (en) * | 2020-06-24 | 2022-03-29 | Oppo广东移动通信有限公司 | Display module, manufacturing method thereof and electronic equipment |
| CN111785171B (en) * | 2020-07-21 | 2022-03-29 | 昆山国显光电有限公司 | Laminating device |
| CN112309255A (en) * | 2020-10-30 | 2021-02-02 | 云谷（固安）科技有限公司 | Display module attaching method and display device |
| CN114999325B (en) * | 2022-06-17 | 2023-10-31 | 昆山国显光电有限公司 | Bonding device and bonding method |
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- 2019-06-28 CN CN201910576632.5A patent/CN110197618B/en active Active
- 2019-12-16 WO PCT/CN2019/125672 patent/WO2020258762A1/en active Application Filing
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| CN110197618A (en) | 2019-09-03 |
| WO2020258762A1 (en) | 2020-12-30 |
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Application publication date: 20190903 Assignee: Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd.|Kunshan Guoxian photoelectric Co., Ltd Assignor: The valley (Guan) Technology Co. Ltd. Contract record no.: X2019990000155 Denomination of invention: A kind of applying method of curved face display panel License type: Common License Record date: 20191030 |
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