CN114005370B - Bonding device and bonding method - Google Patents
Bonding device and bonding method Download PDFInfo
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- CN114005370B CN114005370B CN202111390003.7A CN202111390003A CN114005370B CN 114005370 B CN114005370 B CN 114005370B CN 202111390003 A CN202111390003 A CN 202111390003A CN 114005370 B CN114005370 B CN 114005370B
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000007787 solid Substances 0.000 claims abstract description 70
- 239000011796 hollow space material Substances 0.000 claims abstract description 46
- 238000010030 laminating Methods 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000003999 initiator Substances 0.000 claims description 10
- 238000005286 illumination Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000003475 lamination Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 description 19
- 239000000853 adhesive Substances 0.000 description 9
- 239000013043 chemical agent Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- -1 acryl Chemical group 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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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 application discloses a laminating device and a laminating method, wherein the laminating device comprises a profiling body and a force application assembly, the profiling body comprises a solid part and a hollow space formed by the surrounding of the solid part, and at least part of the outer surface of the solid part is a profiling surface for supporting the display panel and profiling a cover plate of the display panel; the force application component is movably arranged in the hollow space; the solid part comprises a plurality of modules which are arranged along the surrounding direction of the solid part, the positions of the modules are adjustable, so that a preset vacancy is formed after the modules are moved, and the force application component can apply force to the part of the display panel corresponding to the preset vacancy. The laminating device can realize the effective lamination of the flexible display panel and the curved cover plate in the double-surrounding screen.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a laminating device and a laminating method.
Background
Along with the development of display technology, the screen occupation ratio of the display equipment is required to be higher and higher, and the flexible display panel has the advantages of being flexible, good in flexibility, light and thin in volume, low in power consumption and the like, and can be attached to the cover plate with the curved surface so as to meet the requirement that people extremely pursue narrow-frame or borderless display, the screen occupation ratio of the display equipment can be improved through the design of double surrounding screens, and user experience is improved. However, in the related art, the bonding between the curved cover plate with a smaller curvature and the flexible display panel can only be achieved, and when the curved cover plate is a double-ring-type curved cover plate, that is, the curved cover plate includes a first planar portion, two curved portions respectively located at two sides of the first planar portion, and a second planar portion and a third planar portion respectively located at one end of the two curved portions far away from the first planar portion, the conventional bonding device cannot be used to achieve effective bonding.
Disclosure of Invention
The embodiment of the application provides a laminating device and a laminating method, which can realize the effective lamination of a flexible display panel and a curved cover plate in a double-surrounding screen.
Embodiments of a first aspect of the present application provide a bonding device for bonding a display panel and a cover plate, the bonding device including:
the copying body comprises a solid part and a hollow space formed by surrounding the solid part, and at least part of the outer surface of the solid part is a copying surface for supporting and copying the display panel;
the force application assembly is movably arranged in the hollow space;
the solid part comprises a plurality of modules which are arranged along the surrounding direction of the solid part, the positions of the modules are adjustable, so that a preset vacancy is formed after the modules are moved, and the force application component can apply force to the part of the display panel corresponding to the preset vacancy.
According to any one of the foregoing embodiments of the first aspect of the present invention, the force application assembly includes a roller and a driving mechanism for driving the roller to move, and the driving mechanism is connected to the roller;
the diameter of the roller is smaller than the dimension of the module along the surrounding direction;
preferably, the diameter of the roller is 2 (r-H-e) to 2 (r-H-e), wherein the value of e is 0 to 0.5mm, r is the radius of the curved surface portion included in the cover plate, H is the thickness of the display panel, and H is the thickness of the module.
According to any of the preceding embodiments of the first aspect of the invention, the thickness H of each of the modules is between 0.5mm and 1mm;
the dimension W of each module along the surrounding direction is 4 (R-H-H-e) to 8 (R-H-H-e), wherein the value of e is 0 to 0.5mm, R is the radius of a curved surface part included in the cover plate, H is the thickness of the display panel, and H is the thickness of the module.
According to any one of the foregoing embodiments of the first aspect of the present invention, the bonding device further includes a control mechanism including: the clamping assembly comprises clamping pieces which are in one-to-one correspondence with the modules and are used for clamping the modules;
the driving assembly comprises driving pieces which are connected with the clamping parts in a one-to-one correspondence manner and used for controlling the movement of the clamping pieces.
According to an embodiment of the first aspect of the present invention, the solid portion includes a light-transmitting region, and the profiling surface is located in the light-transmitting region;
the laminating device also comprises an illumination assembly, and the position of the illumination assembly is adjustably arranged in the hollow space.
According to any of the foregoing embodiments of the first aspect of the present invention, the material of the module is a transparent material;
preferably, the module is made of acrylic material.
According to any one of the foregoing embodiments of the first aspect of the present invention, the solid portion is in a closed loop shape;
alternatively, the solid portion also encloses an opening communicating with the hollow space.
Embodiments of the second aspect of the present application further provide a bonding method, where any one of the bonding devices provided in the first aspect of the present application is used to bond a cover plate and a display panel, including:
attaching a display panel to the profiling surface to form a profiling initial piece;
moving the profiling initial piece to one side of the cover plate, which is away from the display surface, and aligning the profiling initial piece with the cover plate;
peeling and removing the module located in a preset area from the display panel to form the preset empty space;
and moving the force application assembly into the preset empty space, and applying force to the display panel through the force application assembly, so that an area, opposite to the preset empty space, in the display panel is attached to the cover plate.
According to an embodiment of the second aspect of the present invention, in the step of moving the profiling initiator to a side of the cover plate facing away from the display surface and aligning the profiling initiator with the cover plate:
the minimum distance range between the profiling surface and the surface of the cover plate facing to one side of the solid part is as follows: (h+0.2) to (h+0.5) mm, wherein h is the thickness of the display panel in millimeters.
According to an embodiment of the second aspect of the present invention, in the step of moving the profiling initiator to a side of the cover plate facing away from the display surface and aligning the profiling initiator with the cover plate:
the cover plate comprises a first plane part, curved surface parts arranged on two sides of the first plane part, and a second plane part and a third plane part which are respectively connected with one end of the two curved surface parts far away from the first plane part, wherein the first plane part comprises a first center axis region, and the area of a part of the cover plate positioned on one side of the first center axis region is the same as the area of a part positioned on the other side of the first center axis region along the enclosing direction of the cover plate;
the display panel in the profiling initial piece comprises a first side edge, a second center axis area and a second side edge which are arranged along the surrounding direction of the cover plate, wherein the area between the first side edge and the second center axis area is the same as the area between the second side edge and the second center axis area;
and aligning the second center axis area of the display panel with the first center axis area of the cover plate.
The laminating device that this application embodiment provided includes profile modeling body and application of force subassembly, and the profile modeling body is used for profiling the curved shape that display panel corresponds the apron to follow-up laminating with the apron of display panel. The profiling body comprises a solid part and a hollow space, the hollow space is formed by surrounding the solid part, the surrounding direction of the solid part is the circumference of the solid part, and at least part of the outer surface of the solid part is a profiling surface which is used for being attached to one side of the display panel, which is away from the light emitting surface. The profiling surface is an arc-shaped surface corresponding to the bending shape of the cover plate, the solid part consists of a plurality of modules arranged along the surrounding direction of the solid part, and the positions of the modules are adjustable, so that the modules can be separated from the display panel positioned on the profiling surface, and a preset vacancy is formed in the solid part after the modules are separated from the display panel. The application component is movably arranged in the hollow space and can apply acting force deviating from the hollow space to the part of the display panel corresponding to the preset vacancy, after the module is removed, the application component can be moved to the preset vacancy and then directly contacted with one side of the display panel facing the hollow space, and the area, opposite to the removed module, of the display panel moves to one side, close to the cover plate, of the display panel and is attached to the cover plate under the action of the acting force applied by the application component. In the laminating device that this application provided, force application subassembly is located the cavity space of entity portion to can make laminating device and laminating in laminating device's flexible display panel synchronous movement to one side that the curved surface apron deviates from the display surface and do not interfere with the curved surface apron when removing, can realize the effective laminating of flexible display panel and double-ring winding formula curved surface apron.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a double-ring-winding curved cover plate according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a bonding device according to an embodiment of the present application;
fig. 3 is a reference diagram of a usage state of a bonding device according to an embodiment of the present application;
fig. 4 is a schematic structural view of another attaching device according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural view of a contoured starting piece provided in an embodiment of the present application;
FIG. 6 is a schematic view of a process for moving a contoured starting piece into a side of a cover plate facing away from a display surface according to an embodiment of the present application;
fig. 7 is a schematic diagram illustrating a bonding process between a display panel and a cover plate according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram illustrating a bonding process between a display panel and a cover plate according to an embodiment of the present disclosure;
fig. 9 is a schematic flow chart of a bonding method according to an embodiment of the present application.
In the accompanying drawings:
1-a laminating device; 10-profiling body; 101-solid part; 1011-contoured surface; 1012-opening, 103-module; 1031-a first module; 1032—a second module; 102-hollow space; 11-a force application assembly; 12-an illumination assembly; 2-a flexible display panel; 3-curved cover plate.
Detailed Description
Features and exemplary embodiments of various aspects of the present application are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing an example of the present application.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
As shown in fig. 1, the cover 3 is a double-ring-shaped curved cover in a double-ring screen, and includes a first plane portion A1, two curved surface portions (curved surface portion B1 and curved surface portion B2) respectively located at two sides of the first plane portion A1, and a second plane portion A2 and a third plane portion A3 respectively connected to one end of the two curved surface portions far away from the first plane portion A1, where the second plane portion A2 and the third plane portion A3 are parallel to the first plane portion A1, and the second plane portion A2 and the third plane portion A3 are coplanar but discontinuous. The inventor finds that the design of the double surrounding screen can improve the screen occupation ratio of the display equipment and improve the user experience. However, the second flat surface portion A2 and the third flat surface portion A3 interfere with each other when the conventional bonding apparatus is applied, and therefore, effective bonding cannot be achieved by using the conventional bonding apparatus. Based on the research on the problems, the inventor provides a laminating device and a laminating method to realize effective lamination of a flexible display panel and a double-ring-shaped curved cover plate in a double-ring-shaped screen.
In this embodiment, the application of the bonding device to the bonding between the flexible display panel and the curved cover plate in the dual-surrounding screen is specifically described, that is, the cover plate 3 is a dual-surrounding curved cover plate, and the display panel 2 is a flexible display panel. It is understood that the laminating device in the present application may be applied not only to laminating flexible display panel and curved cover plate in double-surrounding screen, but also to laminating flexible display panel and curved cover plate in single-surrounding screen, laminating cover plate with curved edge and display panel or laminating display panel and flat cover plate, etc., and the present application is particularly limited.
For a better understanding of the present application, the following describes in detail the bonding device 11 and the bonding method according to the embodiment of the present application with reference to fig. 2 to 9.
Referring to fig. 2 and 3, an embodiment of the present application provides a bonding device 1 for bonding a display panel 2 and a cover plate 3, where the bonding device 1 includes a profiling body 10 and a force application assembly 11, the profiling body 10 includes a solid portion 101 and a hollow space 102 surrounded by the solid portion 101, and at least part of an outer surface of the solid portion 101 is a profiling surface 1011 for supporting the display panel and profiling the display panel 2; the force application component 11 is movably arranged in the hollow space 102; in this embodiment, the solid portion 101 includes a plurality of modules 103 arranged along a surrounding direction R of the solid portion 101, and each module 103 is adjustable in position to form a preset gap after moving the module, and the force application component 11 can apply a force F facing away from the hollow space 102 to a portion of the display panel 2 corresponding to the preset gap.
The laminating device 1 provided by the embodiment of the application comprises a profiling body 10 and a force application assembly 11, wherein the profiling body 10 is used for profiling the shape of the display panel 2 corresponding to the cover plate 3 so as to facilitate the follow-up lamination of the display panel 2 with the cover plate 3. The profiling body 10 includes a solid portion 101 and a hollow space 102, the hollow space 102 is formed by enclosing the solid portion 101, the enclosing direction R of the solid portion 101 is the circumferential direction of the solid portion 101, and at least part of the outer surface of the solid portion 101 is a profiling surface 1011 for adhering to the side of the display panel 2 facing away from the light-emitting surface. The profiling surface 1011 has a surface corresponding to the shape of the cover plate 3, the solid part 101 is composed of a plurality of modules 103 arranged along the surrounding direction of the solid part 101, and the positions of the modules 103 are adjustable so that the modules 103 can be separated from the display panel 2 positioned on the profiling surface 1011, and a preset vacancy is formed in the solid part after the modules are separated from the display panel. The force application component 11 is movably arranged in the hollow space 102 and can apply an acting force F deviating from the hollow space 102 to a part of the display panel 2 corresponding to the preset vacancy, after the module 103 is removed, the force application component 11 can be moved to the preset vacancy and then directly contacted with one side of the display panel 2 facing the hollow space 102, and a region of the display panel 2 opposite to the preset vacancy moves to one side close to the cover plate 3 under the action of the acting force F and is attached to the cover plate 3. In the laminating device 1 that this application provided, force application component 11 is located the cavity space 102 of entity portion 101 to can make laminating device 1 and laminating in the flexible display panel of laminating device 1 synchronous movement to curved surface apron deviate from one side of display surface and do not interfere with the curved surface apron when removing, can realize the effective laminating of flexible display panel and double-ring winding formula curved surface apron.
In one possible embodiment, the gel between the display panel 2 and the profiling surface 1011 is uv-curable, which can be de-tacky by irradiation with uv light. In this embodiment, the solid portion 101 includes a light-transmitting region where the contoured surface 1011 is located; as shown in fig. 2 and 3, the attaching device 1 further includes a lighting assembly 12, where the lighting assembly 12 is adjustably disposed in the hollow space 102 and is used to provide ultraviolet light to the module 103 so as to disengage the module 103 from the display panel 2 located on the profiling surface 1011.
In the above embodiment, a part of the area of the solid portion 101 has a light-transmitting structure to form a light-transmitting region, and the profiling surface 1011 is provided in an area of the solid portion 101 opposite to the light-transmitting region. When the display panel 2 is attached to the cover plate 3, the illumination assembly 12 is moved into the hollow space 102. One of the modules 103 (or the module 103 adjacent to the module 103) in the solid portion 101 is irradiated with ultraviolet light through the illumination assembly 12, so that the ultraviolet-curing adhesive on the side of the module 103 away from the hollow space 102 loses adhesiveness, and the area opposite to the module 103 in the display panel 2 and the area opposite to the module 103 in the profiling surface 1011 are separated, that is, the module 103 is separated from the display panel 2, so that a preset vacancy is formed. Then, the force application component 11 can provide a force F to the area of the display panel 2 opposite to the preset area, so that the partial area is attached to the cover plate 3. The display panel 2 is not damaged by adopting the embodiment, the display panel 2 and the profiling surface 1011 are bonded with good effect and convenient to be disassembled by adopting the ultraviolet photoresist, and the ultraviolet photoresist can be positioned on the profiling surface 1011 and recycled, so that the process and the cost are saved.
In the above embodiment, the illumination assembly 13 adopts the ultraviolet lamp strip capable of emitting ultraviolet rays, and can emit parallel light rays, the shape of the ultraviolet lamp strip is adapted to the shape of the module, and the light emitting surface is one side surface of the ultraviolet lamp strip, so as to illuminate the module 103 to be removed, and reduce the influence on the adjacent module 103; in the process of ultraviolet curing adhesive curing, the ultraviolet lamp strip is placed in the hollow space 102 and the light emitting surface of the ultraviolet lamp strip is opposite to the module to be removed, so that the ultraviolet curing adhesive on the part opposite to the module is not sticky, the module is separated from the display panel, a preset vacancy is formed after the module is moved, and the ultraviolet lamp strip can be sequentially moved along the arrangement direction of the module, so that the position of the preset vacancy is moved forward, and the display panel is gradually attached to the cover plate.
In the above embodiment, the solid portion 101 may be made of a rigid material that has light transmittance and can support the display panel 2 to shape the display panel 2, and specifically, an acryl material or the like may be used, and the present application is not particularly limited.
In another possible embodiment, the gel between the display panel 22 and the contoured surface 1011 is a chemical agent that can be tacky after contact with a chemical agent. When the display panel 2 is attached to the cover plate 3, a chemical agent is injected between the portion of the display panel 2 opposite to one of the modules 103 (or including the module 103 adjacent to the module 103) and the profiling surface 1011, and the chemical agent is brought into contact with the chemical agent sol between the portion of the display panel 2 opposite to the module 103 and the profiling surface 1011, so that the chemical agent sol opposite to the module 103 loses viscosity, thereby achieving separation of the portion of the display panel 2 opposite to the module 103 from the module 103 to form a preset void. The area of the display panel 2 opposite to the preset empty space can then be provided with a force F by the force application assembly 11, so that the partial area is attached to the cover plate 3.
In one possible embodiment, the glue between the display panel 2 and the cover plate 3 may be an optical glue, such as OCA, and the application is not particularly limited.
In one possible embodiment, the cover plate 3 is a double-surrounding curved cover plate, and the display panel 2 is a flexible display panel; the solid portion 101 also encloses an opening 1012 that communicates with the hollow space 102, i.e. the solid portion 101 comprises an opening 1012 opposite to the area between the second planar portion A2 and the third planar portion A3 in the cover plate 3. Before bonding, after the bonding device 1 and the display panel 2 bonded to the bonding device 1 are moved to the side of the cover plate 3 away from the display surface, a certain distance needs to be ensured between the display panel 2 and the side of the cover plate 3 away from the display surface, and the display panel 2 and the cover plate 3 are gradually contacted when bonding is performed, so that poor bonding phenomena such as bubbles and wrinkles are prevented from occurring, and therefore, the minimum width L1 of the opening 1012 of the solid portion 101 needs to be set smaller than the minimum distance L2 between the opposite sides of the second plane portion A2 and the third plane portion A3 along the enclosing direction R of the solid portion 101, so as to completely bear the display panel 2.
In another possible embodiment, as shown in fig. 4, the solid portion 101 is in a closed ring shape, that is, the solid portion 101 is disposed around the hollow space 102 in a closed manner, when the cover 3 is a double-ring-type curved cover, and the display panel 2 is a flexible display panel, the solid portion includes a region opposite to the cover 3 and a region opposite to an opening between the second planar portion A2 and the third planar portion A3, and this embodiment can be applied to display panels 2 with different lengths, which is more widely used.
In a possible embodiment, the force application component 11 includes a roller and a driving mechanism for driving the roller to move, where the driving mechanism is connected with the roller, and the driving mechanism can control the roller to move in a preset vacancy to apply the acting force F to a portion of the display panel 2 corresponding to the preset vacancy, and good fitting between the curved surface portion of the cover plate and the display panel can be achieved by using the roller.
In the above embodiment, the roller and the driving mechanism are detachably connected, the roller may be moved into or out of the hollow space 102 by detaching the roller from the driving mechanism or moving the driving mechanism and the roller connected to each other synchronously, or the roller may be always disposed in the hollow space 102. The diameter of the roller is smaller than the distance between the side walls of the hollow space 102 (i.e. the parts of the solid portion 101 facing the hollow space 102) and smaller than the dimension of the respective modules 103 in the enclosing direction R. Specifically, the diameter of the roller may be 2mm-4mm; under the control of the driving device, the roller can rotate around the rotation axis parallel to the first plane part in the cover plate 3 and perpendicular to the arrangement direction of the two curved surface parts, and the roller can move along the enclosing direction R of the solid part 101, so that the area of the display panel 2 opposite to each module 103, namely each position of the display panel 2, is acted by the acting force F to be better attached to the cover plate 3.
In one possible embodiment, as shown in fig. 5, the thickness H of each module is 0.5mm to 1mm. The dimension W of each module along the surrounding direction is 4 (r-H-H-e) to 8 (r-H-H-e), wherein the value of e is 0 to 0.5mm, R is the radius of a curved surface part included in the cover plate, H is the thickness of the display panel, and H is the thickness of the module. By adopting the embodiment, in the attaching process, the area, opposite to each module, of the display panel can be gradually attached to the cover plate, so that the display panel and the cover plate can be prevented from being contacted in advance, poor attaching, such as bubbles and folds, can be avoided, and the attaching effect can be improved.
In the above embodiment, the diameter may be as follows: 2 (r-H-H-e) to achieve good bonding effect.
In a possible embodiment, the fitting device 1 further comprises a control mechanism (not shown in the figure), wherein the control mechanism comprises a clamping assembly and a driving assembly, and the clamping assembly comprises clamping pieces which are in one-to-one correspondence with the modules and are used for clamping the modules; the driving component comprises driving pieces which are in one-to-one correspondence with the clamping pieces and are used for controlling the movement of the clamping pieces.
In the profiling process, each module is clamped and fixed by the clamping pieces corresponding to each module one by one, and the positions of the clamping pieces are controlled by the driving pieces corresponding to each clamping piece one by one, so that each module 103 is enclosed to form a shape matched with the shape of the cover plate 3 and the positions of the modules 103 are relatively fixed, the profiling surface 1011 is matched with the shape of the cover plate 3 facing to the surface of the hollow space 102, and the profiling surface 1011 is convenient for profiling the shape of the display panel 2 corresponding to the cover plate 3.
In the attaching process, each clamping piece is controlled by the driving piece to move each module 103 one by one, so that a space (namely a preset vacancy) is provided for the contact between the force application assembly 11 and the display panel 2, and each area of the display panel 2 opposite to each module 103 is sequentially attached to the cover plate 3 under the action of the force application assembly 11.
In a possible embodiment, as shown in fig. 4 and fig. 5, the solid portion 101 includes a planar supporting portion and a curved supporting portion, the plurality of modules 103 includes a first module 1031 and a second module 1032, the first module 1031 forms the planar supporting portion, the control component controls the first module 1031 to move along a first direction x, and may also control the first module to move along a second direction, the second module 1032 forms the curved supporting portion, the control component controls the second module 1032 to move along a fourth direction z, and may also control the first module to move along the second direction, the first direction x is a direction in which the first planar portion A1 and the second planar portion A2 are arranged in the double-winding curved cover plate, the second direction is perpendicular to a surrounding direction of the solid portion, and the third direction y is a direction in which the curved portion B1 and the curved portion B2 are arranged in the double-winding curved cover plate.
In the attaching process, the module 103 needs to be moved to form a preset gap, so as to provide a space for the force application component 11 to contact with the display panel 2, when the first module 1031 is moved, the module 103 needs to be moved in a first direction x after the module 103 is de-bonded from the display panel 2, so that the module 103 is separated from the display panel 2, friction between the module 103 and the display panel 2 is reduced, and then the module 103 is moved in a second direction, so that the module 103 moves out of the display panel towards one side of the hollow space 102, so that the force application component 11 in the hollow space 102 contacts with one side of the display panel 2 towards the hollow space 102. The module 103 may be moved only in the second direction after the module 103 is de-bonded from the display panel 2, and the module 103 may be moved out of the display panel toward the side of the hollow space 102, so that the force application assembly 11 located in the hollow space 102 contacts the side of the display panel 2 toward the hollow space 102.
When moving the second module 1032, it is necessary to move the module 103 in the fourth direction z after the module 103 is de-bonded from the display panel 2, so as to separate the module 103 from the display panel 2, and then move the module 103 in the second direction; or directly in a second direction; so that the module 103 is moved out of the side of the display panel facing the hollow space 102 so that the force application assembly 11 located in the hollow space 102 is in contact with the side of the display panel 2 facing the hollow space 102.
In the attaching process, after the first module 1031 or the second module 1032 that needs to provide space for attaching is removed, the other modules 103 need to be moved, so that the other modules 103 approach the areas corresponding to the removed modules 103, so as to provide a movable margin for the display panel 2 approaching the cover plate 3, so that the display panel 2 can move to and attach to the cover plate 3, and meanwhile, damage to the display panel 2 is avoided.
The application also provides a laminating method, use arbitrary laminating device 1 laminating display panel 2 and apron 3 that this application provided, as shown in fig. 9, include:
s100, the display panel 2 is attached to the profiling surface 1011 to form a profiling initiator, as shown in fig. 5.
S200, the profiling initiator is moved to the side of the cover plate 3 facing away from the display surface and aligned with the cover plate 3, as shown in fig. 6.
S300, peeling and removing the module 103 located in the preset area from the display panel 2 to form the preset empty space, as shown in fig. 7.
S400, the force application assembly 11 is moved into the preset empty space, and the force application assembly 11 applies the force F to the display panel 2, so that the area of the display panel 2 opposite to the preset empty space is attached to the cover plate, as shown in fig. 8.
In the above attaching method, the display panel 2 is firstly attached to the attaching surface 1011 of the solid portion 101 by copying the display panel 2 so that the display panel 2 is formed to have a shape matching the cover plate 3, and the display panel 2 attached to the attaching surface 1011 and the attaching device 1 together form a copying preform; then the profiling initial piece is moved to one side of the cover plate 3, which is away from the display surface, namely the display panel 2 and the laminating device 1 are moved to one side of the cover plate 3, which is away from the display surface, so that the laminating device 1 does not interfere with the cover plate 3 during lamination, and effective lamination of the display panel 2 and the double-ring-winding cover plate 3 can be realized; and then the module 103 positioned in the preset area is peeled off and removed from the display panel 2 to form a preset vacancy, so that a space is provided for the contact between the force application assembly 11 and the display panel 2, and the force application assembly 11 provides a force F towards the cover plate 3 for the part of the display panel 2 opposite to the preset vacancy, so that the part of the display panel 2 opposite to the preset area is close to and attached to the cover plate 3. In the attaching process, the preset areas are distributed in sequence along the surrounding direction R of the solid portion 101, the modules 103 are peeled off and removed in sequence along the surrounding direction R of the solid portion 101, and after each module 103 is removed, acting force F is applied to the area, opposite to the module 103, of the display panel 2, so that the display panel 2 and the cover plate 3 can be completely attached.
In step S100, the display panel 2 may be attached to the profiling surface 1011 by using a roller, so that the attaching effect is better.
In one possible embodiment, as shown in fig. 8, the minimum distance between the solid portion 101 and the surface of the cover plate 3 facing the solid portion 101 is in the range of: (h+0.2) mm to (h+0.5) mm, wherein h is the thickness of the display panel in millimeters.
In the above embodiment, the minimum distance between the solid portion 101 and the surface of the cover plate 3 facing the solid portion 101 is set to (h+0.2) mm to (h+0.5) mm, so as to ensure that the minimum distance between the display panel 2 attached to the profiling surface 1011 and the side of the cover plate 3 facing away from the display surface is 0.2mm to 0.5mm, so that the display panel 2 and the cover plate 3 are gradually contacted and prevented from being contacted in advance when attaching is performed, thereby preventing occurrence of poor attachment phenomena such as bubbles and wrinkles, and improving attaching quality.
In one possible embodiment, in step S200, it includes:
s201, the cover plate 3 comprises a first plane part, curved surface parts arranged on two sides of the first plane part, and a second plane part and a third plane part which are respectively connected with one end of the two curved surface parts far away from the first plane part, wherein the first plane part comprises a first center axis region, and the area of a part of the cover plate positioned on one side of the first center axis region is the same as the area of a part positioned on the other side of the first center axis region along the enclosing direction of the cover plate 3.
S202, the display panel 2 in the profiling initial piece comprises a first side edge, a second center axis area and a second side edge which are arranged along the surrounding direction of the cover plate, wherein the area between the first side edge and the second center axis area is the same as the area between the second side edge and the second center axis area.
S203, aligning the second center axis area of the display panel 2 with the first center axis area of the cover plate 3.
In one possible embodiment, in step S300, it includes: the module 103 opposite to the second central axis region is peeled off and removed from the display panel 2.
The step S400 includes: the step S400 of moving the force application assembly 11 to contact the second central axis region in the display panel 2 so that the second central axis region in the display panel 2 is first attached to the cover plate 3 further includes: the modules 103 located at one side of the second center axis area are sequentially removed, and after each module 103 is removed, a first pressure F is applied to the display panel 2 through the force application assembly 11, so that the display panel 2 and the cover plate 3 are sequentially attached from the second center axis area to the directions of two sides of the second center axis area.
In the above embodiment, the second central axis region of the profiling initial member is aligned with the first central axis region of the cover plate 3, and the lamination starts from this position, specifically, the display panel 2 includes a first side and a second side aligned along the enclosing direction R of the solid portion 101, in the lamination process, the lamination can be sequentially performed from the second central axis region to the first side direction, then the lamination is performed back to the second central axis region and then sequentially performed to the second side direction, so that the display panel 2 and the cover plate 3 are gradually laminated along the second central axis region to the first side direction of the display panel 2, and then gradually laminated along the second central axis to the second side direction of the display panel 2, so that the display panel 2 and the cover plate 3 after the lamination is completely aligned, and the lamination mode can effectively prevent bubbles or wrinkles from being generated.
In the attaching process, each module 103 needs to be removed in sequence to form a plurality of preset areas, and after each module 103 is removed, a part of the display panel and a part of the cover plate corresponding to the module 103 are attached. Specifically, the module 103 opposite to the second central axis region is removed, and then the modules 103 on two sides of the second central axis region need to be moved to a side close to the second central axis region, so as to provide a movable allowance for the part of the display panel 2 located in the second central axis region to approach to one side of the cover plate 3; then, the modules 103 at one side of the second center axis area are removed in sequence, and each module 103 is attached once after being removed, and a movable allowance can be provided for the display panel 2 by moving the modules 103 when necessary in the attaching process, so that the display panel 2 approaches to one side of the cover plate 3 and is attached.
The colloid between the display panel 2 and the profiling surface 1011 can be selected according to the structure of the bonding device 1, and when the bonding device 1 comprises a light-transmitting part, the colloid can be ultraviolet-curing adhesive or chemical-curing adhesive; when the bonding device 1 is in an opaque structure, the colloid may be ultraviolet curing adhesive.
When the colloid between the display panel 2 and the profiling surface 1011 is ultraviolet glue, the illumination assembly 12 is moved into the hollow space 102 in the process of peeling the module 103 located in the preset area from the display panel 2, and ultraviolet light is irradiated to one of the modules 103 (or the module 103 adjacent to the module 103) in the solid portion 101 by the illumination assembly 12, so that the ultraviolet glue located on one side of the module 103 away from the hollow space 102 loses viscosity.
When the gel between the display panel 2 and the profiling surface 1011 is a chemical-adhesive, a chemical agent is injected between the part of the display panel 2 opposite to one module 103 (or including the module 103 adjacent to the module 103) and the profiling surface 1011 in the process of peeling the module 103 located in the preset area from the display panel 2, so that the chemical agent contacts the chemical-adhesive between the part of the display panel 2 opposite to the module 103 and the profiling surface 1011, and the chemical-adhesive opposite to the module 103 loses adhesion.
These examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and claimed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various modifications as are suited to the particular use contemplated. This application is to be limited only by the claims and the full scope and equivalents thereof.
Claims (11)
1. A laminating device for laminating display panel and apron, its characterized in that, laminating device includes:
the copying body comprises a solid part and a hollow space formed by the enclosing of the solid part, at least part of the outer surface of the solid part is a copying surface for supporting and copying the display panel, the solid part comprises a light transmission area, and the copying surface is positioned in the light transmission area;
the force application assembly is movably arranged in the hollow space;
the illumination assembly is arranged in the hollow space in a position-adjustable manner;
the solid part comprises a plurality of modules which are arranged along the surrounding direction of the solid part, the positions of the modules are adjustable, a preset vacancy is formed after the modules are moved, and the force application component can apply force to the part of the display panel corresponding to the preset vacancy.
2. The fitting device of claim 1 wherein said force application assembly comprises a roller and a drive mechanism for driving movement of said roller, said drive mechanism being coupled to said roller;
the diameter of the roller is smaller than the dimension of the module along the surrounding direction.
3. The bonding apparatus according to claim 2, wherein the diameter of the roller is 2 (r-H-e), wherein e has a value of 0 to 0.5mm, r is a radius of a curved surface portion included in the cover plate, H is a thickness of the display panel, and H is a thickness of the module.
4. A conformable device according to any one of claims 1 to 3, wherein the thickness H of each module is from 0.5mm to 1mm;
the dimension W of each module along the surrounding direction is 4 (r-H-H-e) to 8 (r-H-H-e), wherein the value of e is 0 to 0.5mm, r is the radius of a curved surface part included in the cover plate, H is the thickness of the display panel, and H is the thickness of the module.
5. The fitting device of claim 1, further comprising a control mechanism comprising: the clamping assembly comprises clamping pieces which are in one-to-one correspondence with the modules and are used for clamping the modules;
the driving assembly comprises driving pieces which are connected with the clamping pieces in a one-to-one correspondence manner and used for controlling the movement of the clamping pieces.
6. The fitting device of claim 5, wherein the material of the module is a transparent material.
7. The bonding apparatus according to claim 6, wherein the module is made of acrylic material.
8. The bonding apparatus according to claim 1, wherein,
the solid part is in a closed ring shape;
or the solid part also encloses an opening communicated with the hollow space.
9. A bonding method for bonding a display panel and a cover plate using the bonding apparatus according to any one of claims 1 to 8, comprising:
attaching a display panel to the profiling surface to form a profiling initial piece;
moving the profiling initial piece to one side of the cover plate, which is away from the display surface, and aligning the profiling initial piece with the cover plate;
peeling and removing the module located in a preset area from the display panel to form the preset empty space;
and moving the force application assembly into the preset empty space, and applying force to the display panel through the force application assembly, so that an area, opposite to the preset empty space, in the display panel is attached to the cover plate.
10. The bonding apparatus according to claim 9, wherein in the step of moving the profiling initiator to a side of the cover plate facing away from the display surface and aligning the profiling initiator with the cover plate:
the minimum distance range between the profiling surface and the surface of the cover plate facing to one side of the solid part is as follows: (h+0.2) to (h+0.5) mm, wherein h is the thickness of the display panel in millimeters.
11. The fitting method according to claim 10, wherein in the step of moving the profiling initiator to a side of the cover plate facing away from the display surface and aligning the profiling initiator with the cover plate:
the cover plate comprises a first plane part, curved surface parts arranged on two sides of the first plane part, and a second plane part and a third plane part which are respectively connected with one end of the two curved surface parts far away from the first plane part, wherein the first plane part comprises a first center axis region, and the area of a part of the cover plate positioned on one side of the first center axis region is the same as the area of a part positioned on the other side of the first center axis region along the enclosing direction of the cover plate;
the display panel in the profiling initial piece comprises a first side edge, a second center axis area and a second side edge which are arranged along the surrounding direction of the cover plate, wherein the area between the first side edge and the second center axis area is the same as the area between the second side edge and the second center axis area;
and aligning the second center axis area of the display panel with the first center axis area of the cover plate.
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