CN111554191A - Laminating device and laminating method - Google Patents
Laminating device and laminating method Download PDFInfo
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- CN111554191A CN111554191A CN202010420241.7A CN202010420241A CN111554191A CN 111554191 A CN111554191 A CN 111554191A CN 202010420241 A CN202010420241 A CN 202010420241A CN 111554191 A CN111554191 A CN 111554191A
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- laminating
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- attaching
- display module
- flexible 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
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Abstract
The invention provides a laminating device, which is used for laminating a curved surface cover plate and a flexible display module, wherein the curved surface cover plate comprises a straight area and a bending area positioned on at least one side of the straight area, and the laminating device comprises: the utility model discloses a flexible flat region, including the laminating body, the laminating body and locate elastic support body on the laminating body, elastic support body includes the region of tie and pastes curved district, and the thickness that elastic support body corresponds the region of tie part tends to the increase from the direction of the directional region of tie of the curved district of pasting, and pastes the circular arc radius minimum of the most distal end in the curved district relatively. The stress condition when having improved the laminating of flexible display module to curved surface apron makes the flexible display module atress even, avoids the screen body atress too big and causes the flexible display module damaged and peel off from the curved surface apron, and then produces bad phenomena such as black speck, influences normal use. Meanwhile, the fit curved surface cover plate in the straight area is moved upwards and loosened through pressure monitoring, shearing force is released, and the risk of damage to the screen body is reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to a laminating device and a laminating method.
Background
The development of the flexible display technology promotes the continuous development of the design of the consumer electronics, and the curved surface electronic product can also realize display or touch control on the front surface and the side surface due to attractive appearance, has better space utilization rate and operating performance and is more favored by consumers.
Among the correlation technique, curved surface apron when with the laminating of flexible display module assembly, make the flexible display module assembly produce stress concentration phenomenon in the curved surface region easily, this kind of stress concentration phenomenon can increase flexible display module assembly damaged and follow the curved surface apron and peel off the risk, and then produce badness such as black speck, influence normal use.
Disclosure of Invention
Based on the above, the invention provides a laminating device and a laminating method for improving the above problems, and solves the problem that when the existing curved surface cover plate is laminated with the flexible display module, the flexible display module generates stress concentration in the curved surface area to increase the risk that the flexible display module is damaged and peeled off from the curved surface cover plate.
According to an aspect of the application, a laminating device is provided for the laminating of curved surface apron and flexible display module assembly, the curved surface apron includes straight district and is located the bending zone of at least one side in straight district, its characterized in that, the laminating device includes:
the utility model provides a flexible electronic device, including the laminating body, the laminating body and locate elastic support body on the laminating body, elastic support body is including the district of flattening and the curved district of subsides, elastic support body corresponds the thickness of the part of the district of flattening of subsides certainly it points to paste the direction in district of flattening tends to the increase, just it is relative to paste curved district the most distal circular arc radius in district of flattening is minimum.
Optionally, the radius of the arc of the most distal end of the flattened area relative to the curved area is 2-3 mm.
Optionally, the outer side of the fitting body is provided with a pressing surface, the pressing surface comprises a flat surface and a curved surface adjacent to the flat surface, and the flat surface is an inwardly concave curved surface.
Optionally, one side surface of the elastic support body, which faces away from the pasting surface, is a plane;
the surface of one side of the elastic support body facing the sticking plane is an outward convex curved surface.
Optionally, the maximum thickness of the elastic support body corresponding to the flat attaching portion ranges from 4 mm to 8 mm;
and the minimum thickness range of the elastic support body corresponding to the plane pasting part is 2-5 mm.
Optionally, the shape of the curved surface of the fitting body matches with the shape of a side surface of the elastic support body facing the curved surface.
Optionally, the bending region is two positioning shoulders on two sides of the flat region, one of the positioning shoulders is formed by extending a first side of the upper end of the elastic supporting body outwards, the other one of the positioning shoulders is formed by extending a second side of the upper end of the elastic supporting body outwards, and the second side is the side opposite to the first side.
Optionally, the pressing surface includes two curved surfaces located at two sides of the flat surface, and the fitting body includes a first fitting half body and a second fitting half body;
the outer side of the first attaching half body is provided with one bending surface, and the outer side of the second attaching half body is provided with the other bending surface;
the first attaching half body and the second attaching half body can be close to or far away from each other so as to apply pressure through the attaching curved surface along a first preset track.
According to another aspect of the present application, there is provided a bonding method, including the steps of:
the curved surface cover plate moves relative to the flexible display module to be in contact with the flexible display module;
after the curved surface cover plate is connected with the flexible display module, the curved surface cover plate continuously moves relative to the flexible display module by no more than 1 mm;
when the pressure between the curved surface cover plate and the flexible display module reaches a preset pressure, stopping displacement, attaching the flat area, and keeping the current pressure for 3-10 s;
the curved cover plate moves upwards, and the attaching body moves towards two sides to attach the bending area.
Optionally, the method further comprises the following steps: the preset pressure is 0.3 Mpa.
Above-mentioned laminating device, at flexible display module with curved surface apron laminating in-process, because the thickness that the elastic support body corresponds the wainscot part tends to increase from the wainscot direction of curved surface, so the deformation that the elastic support body transmitted from the direction of bending zone to straight district reduces gradually, just the wainscot district is relative the circular arc radius of the most distal end in wainscot district is minimum. Therefore, the stress condition of the flexible display module when the flexible display module is attached to the curved cover plate is improved, the stress of the flexible display module is uniform, the phenomenon that the flexible display module is damaged and peeled off from the curved cover plate due to the overlarge stress of the screen body is avoided, and then the phenomenon that the black spots and other adverse phenomena are generated to influence the normal use is avoided. Meanwhile, the fit curved surface cover plate in the straight area is moved upwards and loosened through pressure monitoring, shearing force is released, and the risk of damage to the screen body is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a bonding apparatus according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of an elastic support body according to an embodiment of the present invention;
fig. 3 and 4 are schematic views of the working state of the attaching method in an embodiment of the invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
One or more embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which elements such as shapes, sizes, proportions, angles, and numbers of elements are merely examples, and in different embodiments, the same or corresponding elements may be denoted by the same reference numerals, and repeated descriptions thereof will be omitted.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present invention.
To facilitate an understanding of the present application, prior to describing the present application in detail, the application process of the existing application apparatus is analyzed.
The existing laminating device adopts a silica gel liner to press and laminate the flexible display module to the inner surface of the curved cover plate, the middle part of the flexible display module is firstly pressed and laminated to the straight area of the curved cover plate, and then the side part of the flexible display module is pressed and laminated to the bent area of the curved cover plate to complete the lamination. Because the area of contact of flexible display module assembly and bending zone is little, easily produce stress concentration when laminating, lead to the silica gel liner to receive the extrusion to produce the deformation, then extrude to all around, but the mid portion of flexible display module assembly has laminated with the straight district of curved surface apron this moment, so the deformation that the silica gel liner transmitted from the bending zone to the direction in straight district is obstructed, and then lead to the atress increase of flexible display module assembly and curved surface apron, cause the flexible display module assembly easily to receive to be damaged and peel off from the curved surface apron, and then produce bad phenomena such as black speck, influence normal use.
Therefore, the application provides a laminating device capable of solving the technical problem.
Fig. 1 shows a schematic cross-sectional view of a fitting device in an embodiment of the present application, and fig. 2 shows a schematic cross-sectional view of an elastic support in an embodiment of the present application. For the purpose of illustration, the drawings show only the structures associated with embodiments of the invention.
Referring to the drawings, the attaching device of the present application can be used for attaching a flexible display module 200 (as shown in fig. 3) to a curved cover plate 300. It should be understood that the flexible display module 200 and the curved cover 300 need to be attached by an adhesive layer to attach the flexible display module 200 to the curved cover 300. Specifically, the bonding adhesive layer may be an OCA optical adhesive layer.
The curved surface cover plate 300 is used for protecting the flexible display module 200 from external impact, and simultaneously, curved surface display is realized for obtaining the front and side display of a product, and the curved surface cover plate 300 needs to cover the flexible display module 200 and has better light transmission. For example, in some embodiments, the curved cover plate 300 may include at least one of sapphire glass, gorilla glass, and in other embodiments, the curved cover plate 300 may further include one of polyethylene terephthalate, polycarbonate, polyethersulfone, polynaphthalene, and polynorbornene.
The curved cover plate 300 includes a flat region 310 and a curved region 320 located at least one side of the flat region 310 and smoothly transitioning with the flat region 310. It should be understood that the curved region 320 on one side of the curved cover plate 300 means that the product has a front area and a side area, and the curved region 320 on one side of the curved cover plate 300 can form a defined outline of the side area of the product. That is to say, the flexible display module 200 is attached to the curved region 320 of the curved cover plate 300, and the curved surface of the product can be realized through the light-transmitting curved region 320, so that the side display can be realized.
In one embodiment, the curved cover plate 300 includes a flat region 310 and curved regions 320 located at two sides of the flat region 310 and smoothly transition to the flat region 310. The flat area 310 is located in the middle of the curved cover plate 300 and is a relatively flat area on the curved cover plate 300, and the curved areas 320 are located on both sides of the curved cover plate 300 in the transverse direction or the longitudinal direction and are areas formed by bending back the flat area 310 on both sides in the transverse direction or the longitudinal direction. The curved regions 320, which are preferably located on both sides of the flat region 310, are symmetrically disposed. In addition, the bending region 320 may have a semicircular shape tangential to the straight region 310, and the bending region 320 may also have a vertical shape, and the shape of the bending region 320 is not limited herein.
It is understood that the curved cover plate 300 may also be a shaped curved cover plate 300, wherein the shaped curved cover plate 300 means that the curved design tends to curve inward of the curved cover plate 300. For example, in some embodiments, the bending angle of the bending region 320 of the curved cover plate 300 is 180 degrees. Of course, in other embodiments, the bending angle of the bending region 320 may be between 90 degrees and 180 degrees or even greater than 180 degrees.
It should be noted that there is no definite boundary defined between the flat region 310 and the curved region 320. The bending zone 320 may also include a partially flat region.
As shown in fig. 3, the flexible display module 200 may be a flexible organic light emitting display panel, specifically, a flexible OLED light emitting display panel, and of course, the flexible display module 200 may also be other flexible and bendable panels. Specifically, the flexible display module 200 has a first region corresponding to the flat region 310 of the curved cover plate 300 and a second region corresponding to the curved region 320 of the curved cover plate 300, the first region of the flexible display module 200 is attached to the flat region 310 of the curved cover plate 300, and the second region of the flexible display module 200 is attached to the curved region 320 of the curved cover plate, so as to implement front display and side display of the product.
Referring to fig. 1 again, the attaching device in the embodiment of the present application includes an attaching body 10 and an elastic supporting body 20. The elastic support body 20 comprises a flat attaching area 21 and a curved attaching area 22, the thickness of the part of the elastic support body corresponding to the flat attaching area tends to increase from the curved attaching area to the flat attaching area, and the radius of the arc of the curved attaching area relative to the farthest end of the flat attaching area is the smallest.
In one embodiment, the flat attaching area and the bent attaching area are provided with a plurality of curved angles with different arc radiuses, and the arc radius of the most far curved angle is set to be minimum, so that a gradual-change curved angle design is formed, and the condition that a single curved angle enables the screen body and the cover plate to be contacted in advance to generate bubbles is avoided.
Specifically, the arc radius of the bending region relative to the bending angle R1 at the most far end of the flat region is 2-3mm, preferably 2.2 mm. The optimum values of the arc radii of the curved angle R2 and the curved angle R3, which are successively adjacent to the curved angle R1, are 6mm and 10mm, respectively.
The outer side of the bonded body 10 has a pressing surface 11, and the pressing surface 11 includes a flat surface 111 and a curved surface 112 located on at least one side of the flat surface 111. Specifically, there is a smooth transition between the flat facing surface 111 and the curved facing surface 112.
In the embodiment of the present application, the flat attaching surface 111 corresponds to the flat region 310 of the curved cover plate 300, and the curved attaching surface 112 corresponds to the curved region 320 of the curved cover plate 300. It should be noted that the flat attaching surface 111 corresponds to the flat area 310, in which the flat attaching surface 111 applies pressure to the first area of the flexible display module 200 to attach the first area of the flexible display module 200 to the flat area 310 during the process of applying pressure to the curved cover 300 by using the attachment body 10, and the curved attaching surface 112 corresponds to the curved area 320, in which the curved attaching surface 112 applies pressure to the second area of the flexible display module 200 to attach the second area of the flexible display module 200 to the curved area 320 during the process of applying pressure to the curved cover 300 by using the attachment body 10.
The elastic support 20 is disposed on the bonded body 10, and the elastic support 10 is bonded to at least the curved surface 112 of the bonded body 10. Specifically, elastic support body 20 is used for bearing flexible display module 200 to a side surface of the laminating body 10 dorsad, because of the existence of elastic support body 20, make the laminating inseparabler to make the laminating of the dynamics of the laminating body 10 to flexible display module 200 softer, has improved the laminating effect.
The flat attaching surface 111 is an inwardly concave curved surface, and the thickness of the portion of the elastic support 20 corresponding to the flat attaching surface 111 tends to increase from the curved attaching surface 112 to the flat attaching surface 111. The concave shape of the flat surface 111 can provide a certain space for increasing the thickness of the portion of the elastic support body 20 corresponding to the flat surface 111, so as to prevent the elastic support body 20 from protruding toward the side away from the flat surface 111 due to the increased thickness of the portion of the elastic support body 20 corresponding to the flat surface 111, thereby affecting the attachment of the first region of the flexible display module 200 to the straight region 100 of the curved cover plate 300.
It should be understood that the thickness of the portion of the elastic support 20 corresponding to the flat surface 111 tends to increase from the curved surface 112 to the flat surface 111, and the thickness of the portion of the elastic support 20 corresponding to the flat surface 111 has an overall increasing trend from the curved surface 112 to the flat surface 111, but is not necessarily linearly increasing or gradually increasing.
In one embodiment, the fitting body 10 is configured to move along a fitting track, and a projection of the flat attaching surface 111 and the curved attaching surface 112 of the fitting body 10 along a direction of the fitting track falls within an area of the elastic support 20. That is, during the process of the attachment body 10 moving along the attachment track, after contacting the elastic support body 20 and the curved cover 300, the attachment body 10 can press the elastic support body 20 through the flat attachment surface 111 and the curved attachment surface 112, so that the flexible display module 200 on the elastic support body 20 is pressed against the curved cover 300.
As shown in fig. 3 to 4, in the embodiment of the present invention, the attaching device further includes a driving member for driving the attaching body 10 to move along the attaching track. Specifically, the attachment locus includes a straight line segment and a curved line segment, wherein a normal direction of the straight line segment coincides with a normal direction of the flat area 310 of the curved cover plate 300, and a normal direction of the curved line segment coincides with a normal direction of the curved area 320 of the curved cover plate 300.
Thus, when the driving member drives the attachment body 10 to press the flat area 310 through the attaching plane 111, that is, the first area of the flexible display module 200 is pressed to the flat area 310 for attaching, and then the driving member drives the attachment body 10 to press the curved area 320 through the curved plane 111, that is, the second area of the flexible display module 200 is pressed to the curved area 320 for attaching.
At this time, the curved surface 111 is pressed to the flexible display module 200 through the elastic support 20, so that stress concentration is generated between the flexible display module 200 and the curved region 320 of the curved cover plate 300, and the corresponding position of the elastic support 20 is pressed to generate deformation, and then is extruded to the periphery.
The first region of the flexible display module 200 is already attached to the flat region 310 of the curved cover 300, but since the thickness of the portion of the elastic support 20 corresponding to the attachment plane 111 tends to increase from the curved surface 112 to the attachment plane 111, the deformation of the elastic support 20 transferred from the curved region 320 to the flat region 310 gradually decreases.
In a preferred embodiment, after the curved cover plate moves to contact with the flexible display module, the curved cover plate continues to move no more than 1mm relative to the flexible display module, preferably0.3-0.5mm(ii) a Stopping displacement when the pressure between the curved surface cover plate and the flexible display module reaches a preset pressure, wherein the preset pressure is set according to actual needs, in the embodiment, the preset pressure is set to be 0.3MPA-0.5MPA, the flat area is attached, and the current pressure is kept for 3-10 s; then the curved cover plate moves upwards by the same amount as the amount of downward pressing.
The carrier film is continuously bent to be in contact with the elastic supporting body, the first attaching half body 14 and the second attaching half body 15 move towards the left side and the right side respectively, and the elastic supporting body drives the flexible display module and the curved cover plate to attach to each other in a bending area.
The application of laminating device has improved the atress condition when flexible display module assembly 200 laminates to curved surface apron 300, makes flexible display module assembly 200 atress even, avoids the screen body atress too big and causes flexible display module assembly 200 damaged and peel off from curved surface apron 300, and then produces badness such as black speck, influences normal use.
It should be noted that, in other embodiments, when the bending area 320 is vertical, the driving element may drive the attachment body 10 to press the straight area 310 through the attaching plane 111 along a straight line section of the attaching track, and at the same time, the process of pressing the bending area 320 through the attaching curved surface 112 may be completed, and it is not necessary to use the driving element to drive the attachment body 10 to press the bending area 320 through the attaching curved surface 112 along a curved line section of the attaching track.
Specifically, in an embodiment, the maximum thickness of the portion of the elastic support 20 corresponding to the flat surface 111 ranges from 4 mm to 8 mm, and the minimum thickness of the portion of the elastic support 20 corresponding to the flat surface 111 ranges from 2mm to 5 mm. Within this thickness range, the deformation of the elastic support 20 transferred from the bending region 320 to the flat region 310 can be steadily and gradually reduced, so that the flexible display module 200 is uniformly stressed.
In a preferred embodiment, the maximum thickness of the elastic support 20 corresponding to the flat surface 111 is 5 mm, and the minimum thickness of the elastic support 20 corresponding to the flat surface 111 is 2 mm.
In some embodiments, the elastic support 20 may be made of silicone, so that the elastic support 20 itself has a certain strength, can maintain its shape in a natural state, and can deform to apply pressure to the flexible display module 200 when being squeezed. Of course, it is understood that the elastic support 20 of the present application is not limited to a silicone material, and may be a cushion made of other elastic materials.
Referring to fig. 1 again, in order to quickly attach the first region of the flexible display module 100 to the flat region 310 of the curved cover 300, a side surface of the elastic supporting body 20 opposite to the attachment body 10 is a plane, and a side surface of the elastic supporting body 20 facing the attachment body 10 is an outwardly convex curved surface.
In one embodiment, a side surface of the elastic supporting body 20 facing the attachment body 10 is a smooth curved surface. Thus, the deformation of the elastic support 20 transferred from the bending region 320 to the straight region 310 can be uniformly and gradually reduced, and the flexible display module 100 is prevented from being damaged due to the excessive stress at the fluctuated position caused by the large fluctuation in the deformation transfer process. In a preferred embodiment, a side surface of the elastic supporting body 20 facing the attachment body 10 is a curved surface.
In some embodiments, the shape of the flat surface 111 of the fitting body 10 matches the shape of the surface of the elastic support 20 facing the flat surface 111. The bonded body 10 can reliably support the elastic support 20 before and after bonding, and can maintain the form of the elastic support 20.
In some embodiments, since the pasting surface 111 is concave, in order to ensure the structural strength of the pasting body 10, the transition surface 12 of the pasting body 10 is disposed to be inclined away from the pasting surface 111 from the direction of the curved pasting surface 112 toward the pasting surface 111 without interfering with the pasting process of the flexible display module 200 onto the curved cover 300 by using the pasting device, and the transition surface 12 is disposed opposite to the pasting surface 111. Specifically, the attachment body 10 further includes an extending surface 13, the extending surface 13 is perpendicular to the attachment plane 111, and two sides of the transition surface 12 are smoothly transited to the attachment bending surface 112 and the extending surface 13, respectively.
When the curved cover plate 300 has the curved regions 320 on both sides of the flat region 310, that is, the flat attaching surface 11 has two curved attaching surfaces 111, the portions of the elastic supports 20 corresponding to the curved attaching surfaces 111 may be symmetrically disposed along the symmetry center line of the two curved attaching surfaces 111. In this way, the deformation of both sides of the elastic support body 20 transferred from the bending region 320 to the flat region 310 can be made uniform. Further, the transition surface 12 and the extension surface 13 also include two surfaces, and are symmetrically disposed along the symmetry center line of the two curved surfaces 111.
In some embodiments, the attaching device further includes an adhesive layer for adhering the curved surface 112 and the portion of the elastic support 20 corresponding to the curved surface 112, and the flat surface 111 is in direct contact with the portion of the elastic support 20 corresponding to the flat surface 111. Therefore, when the attachment body 10 is used to attach the flexible display module 200 from the straight region 310 to the curved region 320, there is no adhesion relationship between the attachment plane 111 and the portion of the elastic support 20 corresponding to the attachment plane 111, so that the portion of the elastic support 20 corresponding to the attachment plane 111 will not stretch and deform towards both sides along with the attachment body 10, and the stress between the portion of the elastic support 20 corresponding to the attachment plane 111 and the flexible display module 200 is increased, and the use of the adhesive layer can ensure that the portion of the attachment curved surface 112 corresponding to the elastic support 20 and the portion of the attachment curved surface 112 will not separate when the attachment body 10 is attached from the straight region 310 to the curved region 320, so that the attachment effect is good. The adhesive layer may also function to fix the elastic support body 20 to the bonded body 10, and in another embodiment, the elastic support body 20 is attached to the transition surface 12 and the extension surface 13, so that the portion of the extension surface 13 corresponding to the elastic support body 20 may be sandwiched by a fixing jig to fix the elastic support body 20 to the bonded body 10.
In some embodiments, the pressing surface 11 includes two bending surfaces 112 located on two sides of the pressing surface 111, the pressing body 10 of the pressing device includes a first pressing half 14 and a second pressing half 15, the first pressing half 14 has one bending surface 112 on the outer side, the second pressing half 15 has another bending surface 112 on the outer side, and the first pressing half 14 and the second pressing half 15 approach or move away from each other to press the pressing surface 112 along a first predetermined trajectory. Specifically, the first preset trajectory comprises a curved segment in the fit trajectory.
Specifically, the first half 14 has a first curved surface 142 on the outer side corresponding to the curved region 320 of one side of the curved cover 300, and the second half 15 has a second curved surface 152 on the outer side corresponding to the curved region 320 of the other side of the curved cover 300.
The driving member is used for driving the first half bonding body 14 to press the bending area 320 through the first bending surface 142 along the first predetermined track, and the driving member is used for driving the second half bonding body 15 to press the bending area 320 through the second bending surface 152 along the first predetermined track. Thus, the first half laminating body 14 and the second half laminating body 15 are used for respectively pressing and pasting the two second areas and the two bending areas 320 of the flexible display module 200, so that the efficiency can be improved, and the pressing and pasting processes can be carried out simultaneously, so that the uniformity of the pressing and pasting force on the first area of the flexible display module 200 is ensured. Specifically, the first half attaching body 11 and the second half attaching body 15 are symmetrically arranged along the symmetry center line of the two attaching curved surfaces 111.
Further, the outer side of the first half attaching body 14 further has at least a part of the attaching plane 111, the outer side of the second half attaching body 15 further has at least a part of the attaching plane 111, and the first half attaching body 14 and the second half attaching body 15 can move along a preset direction to press along a second preset track through the attaching plane 111. Specifically, the second preset track comprises a straight line segment of the fitting track.
Specifically, the outer side of the first half 14 has a first flat surface 141 corresponding to the at least partially flat region 310 of the curved cover 300, and the outer side of the second half 15 has a second flat surface 151 corresponding to the at least partially flat region 310 of the curved cover 300. Referring to fig. 4 again, the driving member is used for driving the first half attaching body 14 to press the straight area 310 of the curved cover plate 300 along the second predetermined track through the first attaching plane 141 and the second half attaching body 15 through the second attaching plane 151. The area of the curved region 320 is smaller than that of the straight region 310, so that the first pasting plane 141 and the second pasting plane 151 corresponding to at least a part of the straight region 310 are added to the first pasting half body 14 and the second pasting half body 15, which can increase the strength of the first pasting half body 14 and the second pasting half body 15, ensure that the second regions on both sides of the flexible display module 200 are reliably pasted with the curved region 320 of the curved cover plate 300, and the pasting effect is good.
Furthermore, the driving member can be used for driving the first half attaching body 14 and the second half attaching body 15 to be located at the attaching position and the separating position, and when the first half attaching body 14 and the second half attaching body 15 are located at the attaching position, the first attaching plane 141 and the second attaching plane 151 are connected and coplanar. That is to say, when the first half attaching body 14 and the second half attaching body 15 are located at the attaching position, the first attaching plane 141 and the second attaching plane 151 are combined to form the complete attaching plane 11, under the driving action of the driving member, the first half attaching body 14 and the second half attaching body 15 can attach the first region of the flexible display module 200 to the straight region 310, and when the first half attaching body 14 and the second half attaching body 15 are located at the separating position, that is, the first half attaching body 14 and the second half attaching body 15 move to both sides, the first half attaching body 14 and the second half attaching body 15 can attach the second region of both sides of the flexible display module 200 to the curved region 320 of both sides, respectively.
In order to attach the flexible display module 200 to the inner side of the curved cover plate 300 by the attaching device, in an embodiment, taking the special-shaped curved cover plate as an example, the attaching device may be moved into the special-shaped curved cover plate by moving the attaching device from the end of the special-shaped curved cover plate. That is, the attaching device is translated into the irregularly-shaped curved cover plate from the extending direction of the irregularly-shaped curved cover plate. Because the external dimension of laminating device slightly is less than the inboard size of dysmorphism curved surface apron, so during the laminating device emboliaed dysmorphism curved surface apron very easily, when adopting the laminating device that the external dimension is great, if when getting into the laminating device from the opening direction of dysmorphism curved surface apron, because dysmorphism curved surface apron has bending zone 320, two bending zone 320 terminal distances of dysmorphism curved surface apron are less for want to interfere between the both ends of laminating device and the two bending zone 320 terminals of dysmorphism apron. And the end part of the special-shaped curved surface cover plate is translated into the special-shaped curved surface cover plate, so that the interference problem can be avoided.
Of course, it is to be understood that the present application may also be used to translate the doubler into the contoured cover plate from the area between the ends of the two curved regions 320 of the contoured cover plate. This applies to the case where the width of the attaching means is smaller than the width between the ends of the two curved regions 320 of the irregularly-shaped curved cover plate.
Above-mentioned laminating device, at flexible display module assembly 200 with curved surface apron 300 laminating in-process, because the thickness that elastic support body 20 corresponds plane 111 part tends to increase from the direction that curved surface 112 points to plane 111, so elastic support body 20 reduces from the deformation of bending zone 320 to the direction transmission of straight district 310 gradually, consequently, the atress condition when flexible display module assembly 200 laminates to curved surface apron 300 has been improved, make flexible display module assembly 200 atress even, avoid the screen body atress too big and cause flexible display module assembly 200 to receive the damage and peel off from curved surface apron 300, and then produce bad such as black speck, influence normal use.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a laminating device for the laminating of curved surface apron and flexible display module assembly, the curved surface apron includes straight district and is located the bending zone of at least one side in straight district, its characterized in that, the laminating device includes:
the utility model provides a flexible electronic device, including the laminating body, the laminating body and locate elastic support body on the laminating body, elastic support body is including the district of flattening and the curved district of subsides, elastic support body corresponds the thickness of the part of the district of flattening of subsides certainly it points to paste the direction in district of flattening tends to the increase, just it is relative to paste curved district the most distal circular arc radius in district of flattening is minimum.
2. The laminating device of claim 1 wherein the radius of the arc of the curved region at the distal-most end of the flattened region is 2-3 mm.
3. The laminating device of claim 1, wherein an outer side of the laminating body has a laminating surface, the laminating surface comprises a laminating surface and a laminating curved surface adjacent to the laminating surface, and the laminating surface is an inwardly concave curved surface.
4. The laminating device of claim 3, wherein a surface of the elastic support body on a side facing away from the laminating surface is a flat surface;
the surface of one side of the elastic support body facing the sticking plane is an outward convex curved surface.
5. The laminating device of claim 3, wherein the elastic support has a maximum thickness corresponding to the laminating surface portion in a range of 4 mm to 8 mm;
and the minimum thickness range of the elastic support body corresponding to the plane pasting part is 2-5 mm.
6. The laminating device of claim 3, wherein the shape of the curved surface of the laminating body matches the shape of a side surface of the elastic support facing the curved surface.
7. The attaching device according to any one of claims 1 to 6, wherein said curved region is two positioning shoulders on both sides of said flat region, wherein one of said positioning shoulders is formed by a first side of an upper end of said elastic supporting body extending outwardly, and the other of said positioning shoulders is formed by a second side of an upper end of said elastic supporting body extending outwardly, said second side being a side opposite to said first side.
8. The laminating device of any one of claims 3 to 6 wherein the laminating surface comprises two of the curved surfaces on either side of the laminating surface, and the laminating body comprises a first laminating half and a second laminating half;
the outer side of the first attaching half body is provided with one bending surface, and the outer side of the second attaching half body is provided with the other bending surface;
the first attaching half body and the second attaching half body can be close to or far away from each other so as to apply pressure through the attaching curved surface along a first preset track.
9. A bonding method is characterized by comprising the following steps:
the curved surface cover plate moves relative to the flexible display module to be in contact with the flexible display module;
after the curved surface cover plate is connected with the flexible display module, the curved surface cover plate continuously moves relative to the flexible display module by no more than 1 mm;
when the pressure between the curved surface cover plate and the flexible display module reaches a preset pressure, stopping displacement, attaching the flat area, and keeping the current pressure for 3-10 s;
the curved cover plate moves upwards, and the attaching body moves towards two sides to attach the bending area.
10. The attaching method according to claim 9, further comprising the steps of: the preset pressure is 0.3 Mpa.
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| CN202010420241.7A CN111554191A (en) | 2020-05-18 | 2020-05-18 | Laminating device and laminating method |
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| CN112419896A (en) * | 2020-11-20 | 2021-02-26 | 武汉天马微电子有限公司 | Laminating device and laminating method for flexible display panel and curved cover plate |
| CN112735270A (en) * | 2020-12-29 | 2021-04-30 | 武汉华星光电半导体显示技术有限公司 | Display module and bonding method thereof |
| CN112885239A (en) * | 2021-02-05 | 2021-06-01 | 京东方科技集团股份有限公司 | Bonding apparatus and bonding method |
| CN112918060A (en) * | 2021-02-26 | 2021-06-08 | 霸州市云谷电子科技有限公司 | Bonding apparatus and bonding method |
| WO2022166295A1 (en) * | 2021-02-03 | 2022-08-11 | 京东方科技集团股份有限公司 | Bonding jig, bonding device, and bonding method |
| US11630488B2 (en) | 2020-12-29 | 2023-04-18 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display module and bonding method thereof |
| WO2023103002A1 (en) * | 2021-12-10 | 2023-06-15 | 苏州华星光电技术有限公司 | Laminating apparatus |
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Application publication date: 20200818 |