CN113997679B - Bonding device and bonding method - Google Patents
Bonding device and bonding method Download PDFInfo
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- CN113997679B CN113997679B CN202111394575.2A CN202111394575A CN113997679B CN 113997679 B CN113997679 B CN 113997679B CN 202111394575 A CN202111394575 A CN 202111394575A CN 113997679 B CN113997679 B CN 113997679B
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000003825 pressing Methods 0.000 claims abstract description 169
- 239000007787 solid Substances 0.000 claims abstract description 65
- 238000010030 laminating Methods 0.000 claims abstract description 55
- 230000008093 supporting effect Effects 0.000 claims description 58
- 239000012530 fluid Substances 0.000 claims description 20
- 238000005286 illumination Methods 0.000 claims description 13
- 239000011796 hollow space material Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
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- 239000007788 liquid Substances 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 6
- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 22
- 238000003475 lamination Methods 0.000 description 14
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1866—Handling of layers or the laminate conforming the layers or laminate to a convex or concave profile
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses laminating device and laminating method, the laminating device includes a first support piece, a motion support component and a second support piece, the first support piece includes a solid part, at least part of the outer surface of the solid part is a support profiling surface for profiling the display panel; the pressing assembly is arranged on the outer surface of the solid part and comprises at least one first pressing body; the second support piece is arranged on one side of the pressing assembly, which is away from the solid part, and at least part of the outer surface of the second support piece is a profiling surface for profiling the display panel; the size of the first pressing body in the direction perpendicular to the profiling surface can be adjusted to apply force to the profiling surface, so that the display panel is attached to the cover plate. The laminating device that this application provided can realize the effective laminating of flexible display panel and double-ring winding formula curved surface apron.
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 first supporting piece comprises a solid part, and at least part of the outer surface of the solid part is a supporting profiling surface for profiling the display panel;
the pressing assembly is arranged on the outer surface of the solid part and comprises at least one first pressing body;
the second support piece is arranged on one side, away from the solid part, of the pressing assembly, and at least part of the outer surface of the second support piece is a profiling surface for profiling the display panel;
the size of the first pressing body in the direction perpendicular to the profiling surface is adjustable, so that acting force is applied to the profiling surface, and the display panel is attached to the cover plate.
According to the foregoing embodiment of the first aspect of the present application, at least one of the first press-fit bodies may be movable in the circumferential direction of the solid portion.
According to any one of the foregoing embodiments of the first aspect of the present application, the pressing assembly includes a plurality of first pressing bodies, and the plurality of first pressing bodies are uniformly arranged along a circumferential direction of the solid portion.
According to any of the foregoing embodiments of the first aspect of the present application, the pressing assembly further includes a second pressing body for supporting the second supporting member, and the first pressing body and the second pressing body are arranged along a circumferential direction of the solid portion.
According to any one of the foregoing embodiments of the first aspect of the present application, the pressing assembly includes a plurality of first pressing bodies, the plurality of first pressing bodies are uniformly arranged along a circumference of the solid portion, the first pressing bodies are configured to be deformable, when the first pressing bodies provide the acting force to the profiling surface, an outer surface of the first pressing bodies includes a pressing area for pressing against the second supporting member, and orthographic projections of the pressing areas of the first pressing bodies on the second supporting member cover the profiling surface.
According to any one of the foregoing embodiments of the first aspect of the present application, the first press-fit body is a cylindrical structure, and the first press-fit body includes a first state and a second state, where a diameter of the first press-fit body in the second state is larger than a diameter of the first press-fit body in the first state, and when the first press-fit body is in the second state, the first press-fit body may apply the force to the second support member;
Preferably, the first press-fit body includes:
a cylinder having a receiving cavity;
a fluid control assembly in communication with the receiving cavity, the fluid control assembly for controlling fluid flow into the receiving cavity to transition the first compression body between the first state and the second state;
preferably, the fluid comprises at least one of a liquid and a gas.
According to any one of the foregoing embodiments of the first aspect of the present application, the first press-fit body is a cylindrical structure, and the first press-fit body includes a first state and a second state, where a diameter of the first press-fit body in the second state is larger than a diameter of the first press-fit body in the first state, and when the first press-fit body is in the second state, the first press-fit body may apply the force to the second support member;
the second pressing body is a cylindrical structure body, and the diameter of the second pressing body is the same as that of the first pressing body in the first state.
According to any one of the foregoing embodiments of the first aspect of the present application, the first support further includes a hollow space defined by the solid portion, the attaching device further includes a light-transmitting region and an illumination component, and the profiling surface is located in the light-transmitting region;
The illumination component is arranged in the hollow space in a position-adjustable manner;
preferably, the material of the first supporting piece is transparent;
the material of the first pressing body is transparent.
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, where the bonding method includes:
attaching the 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;
adjusting the dimension of the first pressing body in the direction perpendicular to the profiling surface so as to apply acting force to the profiling surface and enable the display panel to be attached to the cover plate;
and peeling the display panel from the profiling surface.
According to an embodiment of the second aspect of the present application, 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 between the profiling surface and the surface of the cover plate facing the side of the second supporting piece is in the range of: (h+0.2) to (h+0.5) mm, wherein h is the thickness of the display panel in millimeters.
In the laminating device provided by the application, the profiling surface of the second supporting piece is profiled, and the first laminating body is used for laminating through the acting force provided by the first laminating body, the first laminating body is positioned in the laminating device, when the dimension of the first laminating body in the direction vertical to the profiling surface is changed so that the profiling surface applies the acting force to the display panel, the display panel is jacked up (namely, is close to the cover plate) by the first laminating body, the display panel and one side of the cover plate, which is far away from the display surface, form a preset angle, and due to the existence of the preset angle, the display panel and one side of the cover plate, which is far away from the display surface, are gradually contacted and laminated, so that the contact in advance can be prevented, the lamination defects such as wrinkles and bubbles are prevented, and the laminating quality is improved; the laminating device that this application provided and laminating in laminating device's display panel synchronous movement to the apron deviate from one side of display surface, and do not interfere with the apron when removing, can realize the effective laminating of 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 apparatus according to an embodiment of the present application when a first pressing body is in a first state;
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 diagram of a bonding apparatus according to an embodiment of the present application when a first pressing body is in a second state;
fig. 5 is a schematic structural view of another attaching device according to an embodiment of the present disclosure;
fig. 6 is a schematic structural view of yet another attaching device according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of still another attaching device according to an embodiment of the present disclosure;
FIG. 8 is an enlarged schematic view of region P of FIG. 7;
fig. 9 is a schematic structural view of still another attaching device according to an embodiment of the present disclosure;
fig. 10 is a schematic flow chart of a bonding method according to an embodiment of the present application;
FIG. 11 is a schematic structural view of a contoured starting piece provided in an embodiment of the present application;
FIG. 12 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. 13 is a schematic diagram of an alignment structure of a display panel and a cover plate according to an embodiment of the disclosure;
Fig. 14 is a schematic diagram illustrating a bonding process between a display panel and a cover plate according to an embodiment of the present application.
In the accompanying drawings:
1-a laminating device; 10-a first support; 101-solid part; 102-hollow space; 1011-supporting a contoured surface; 11-pressing assembly; 111-a first press-fit body; 1111-a press nip; 112-a second press-fit body; 12-a second support; 121-a contoured surface; 13-an illumination assembly; 2-a display panel; 3-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-shaped screen, and includes a first planar portion A1, two curved portions (curved portion B1 and curved portion B2) respectively located at two sides of the first planar portion, and a second planar portion A2 and a third planar portion A3 respectively connected to one ends of the two curved portions far away from the first planar portion A1, where the second planar portion A2 and the third planar portion A3 are parallel to the first planar portion A1, and the second planar portion A2 and the third planar portion A3 are coplanar but discontinuous, and the inventor finds that the design of the double-ring-shaped screen can improve the screen ratio of the display device and the user experience, but because of the existence of the second planar portion A2 and the third planar portion A3, when the conventional bonding device is applied, the second planar portion A2 and the third planar portion A3 interfere, so that the conventional bonding device cannot be used to realize effective bonding.
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 a flexible display panel and a curved cover plate in a double-surrounding screen, but also to laminating a flexible display panel and a curved cover plate in a single-surrounding screen, laminating a cover plate with a curved edge and a display panel, or laminating a display panel and a flat cover plate, etc., and is not particularly limited in the present application.
For a better understanding of the present application, the following describes in detail the attaching device and attaching method according to the embodiment of the present application with reference to fig. 2 to 9.
Referring to fig. 2 to 4, an embodiment of the present application provides a bonding apparatus 1 for bonding a display panel 2 and a cover plate 3, where the bonding apparatus 1 includes a first support member 10, a pressing assembly 11, and a second support member 12, the first support member 10 includes a solid portion 101, and at least a part of an outer surface of the solid portion 101 is a supporting profiling surface 1011 for profiling the display panel; the pressing assembly 11 is arranged on the outer surface of the solid part 101, and the pressing assembly 11 comprises at least one first pressing body 111; the second support piece 12 is arranged on one side of the pressing assembly 11, which is away from the solid part, and at least part of the outer surface of the second support piece 12 is a profiling surface 121 for profiling the display panel; the dimension of the first pressing body 111 in the direction perpendicular to the profiling surface 121 can be adjusted to apply a force F to the profiling surface 121 to attach the display panel 2 to the cover plate 3.
The laminating device 1 provided by the embodiment of the application includes a first support member 10, a pressing assembly 11 and a second support member 12, where the first support member 10 is used for supporting and profiling, and includes a solid portion 101, and at least part of the outer surface of the solid portion 101 forms a supporting profiling surface 1011 corresponding to the shape of the cover plate 3, so as to provide a profiling foundation for the pressing assembly 11 and the surface of one side of the second support member 12 facing away from the first support member 10. The pressing assembly 11 is disposed on the outer surface of the solid portion 101, the second supporting member 12 is disposed on a side of the pressing assembly 11 away from the first supporting member 10, a track for accommodating the pressing assembly 11 is formed between the first supporting member 10 and the second supporting member 12, at least a portion of the outer surface of the second supporting member 12 is a profiling surface 121 for profiling the display panel 2, so that the display panel 2 attached to the profiling surface 121 can be profiled corresponding to the shape of the cover plate 3, and the profiled display panel 2 is matched with the shape of the cover plate 3.
The press-fit assembly 11 comprises at least one first press-fit body 111, the dimension of the first press-fit body 111 in the direction perpendicular to the profiling surface 121 being adjustable to apply a force F to the profiling surface 121 such that the second support 12 can protrude away from the solid portion 101 to enable the profiling surface 121 to apply a force F to the display panel 2 away from the solid portion 101 to bring the display panel 2 towards the cover plate 3 and into abutment with the cover plate 3.
In the laminating device 1 provided by the application, the profiling surface 121 of the second supporting piece 12 is profiled, and the first laminating body 111 is used for laminating by the acting force F provided by the first laminating body 111, the first laminating body 111 is positioned in the laminating device 1, when the dimension of the first laminating body 111 in the direction perpendicular to the profiling surface 121 is changed so that the profiling surface 121 applies the acting force F to the display panel, the display panel 2 is jacked up (namely, approaches to the cover plate) by the first laminating body 111, the display panel 2 and one side of the cover plate 3, which is far away from the display surface, form a preset angle, and due to the existence of the preset angle, the display panel 2 and one side of the cover plate, which is far away from the display surface, are gradually contacted and laminated, so that contact in advance can be prevented, lamination defects such as wrinkles and bubbles are prevented, and laminating quality is improved; the laminating device 1 that this application provided and laminating in the display panel 2 of laminating device 1 remove to apron 3 one side that deviates from the display surface, and do not interfere with apron 3 when removing, can realize the effective laminating of display panel 2 and the curved surface apron of dicyclo winding.
The preset angle may range from 5 ° to 15 °, specifically, the preset angle may be 5 °, 6 °, 5 °, 30', 9 °, 10 °, 14 °, or the like, which is not particularly limited in this application.
In one possible embodiment, the at least one first press-fit body 111 is movable along the circumferential direction R of the solid portion 101. As shown in fig. 4, when the press-fit assembly 11 includes a first press-fit body 111, the first press-fit body 111 is movable in the circumferential direction R of the solid portion 101. As shown in fig. 5, when the pressing assembly 11 includes a plurality of first pressing bodies 111, the plurality of first pressing bodies 111 are uniformly arranged along the circumferential direction R of the solid portion 101, at least one first pressing body 111 of the plurality of first pressing bodies 111 can move along the circumferential direction R of the solid portion 101, so as to drive other first pressing bodies 111 to move along the circumferential direction R of the solid portion 101, or the plurality of first pressing bodies 111 can synchronously move along the circumferential direction R of the solid portion 101, during the lamination process, only the dimension of one first pressing body 111 along the direction perpendicular to the profiling surface 121 is adjusted, so as to control one area of the display panel 2 to be in contact with the cover plate 3 first, so that the display panel 2 is gradually laminated with the cover plate 3 along the movement direction of the first pressing body 111, and poor lamination is prevented.
In the above embodiment, the first press body 111 is provided to be movable so as to move the first press body 111 to apply the force F to each position of the contoured surface during fitting.
In a possible embodiment, the attaching device 1 further includes a driving device (not shown in the drawing) connected to the first pressing body 111, where the driving device can control the first pressing body 111 to move along the circumferential direction of the solid portion 101, and in the process of moving the first pressing body 111 along the circumferential direction of the solid portion 101, an acting force F towards the cover plate 3 can be provided to each position in the display panel 2 along the circumferential direction R of the solid portion 101, so that the display panel 2 and the cover plate 3 are gradually attached, and poor attachment such as bubbles and wrinkles is avoided.
In one possible embodiment, as shown in fig. 6, the pressing assembly 11 includes at least one first pressing body 111, the pressing assembly 11 further includes a second pressing body 112 for supporting the second supporting member 12, the first pressing body 111 and the second pressing body 112 are arranged along the circumferential direction R of the solid portion 101, the number of the second pressing bodies 112 may be one or more, and the first pressing body 111 and the second pressing body 112 may move synchronously along the circumferential direction R of the solid portion 101.
In the above embodiment, the pressing assembly 11 includes at least one first pressing body 111 for applying the force F to the profiling surface 121 and movable in the circumferential direction R of the solid portion 101, and a second pressing body 112 for supporting the second support 12. The second press-fit body 112 is used for supporting the second supporting member 12 when profiling the display panel 2 so as to keep the shape of the profiling surface 121 unchanged, thereby ensuring profiling effect; in the attaching process, the second pressing body 112 can move along with the first pressing body 111, so that the attaching of the display panel 2 and the cover plate 3 is not affected.
In a possible embodiment, as shown in fig. 7 and 8, the pressing assembly 11 includes a plurality of first pressing bodies 111, the plurality of first pressing bodies 111 are uniformly arranged along the circumferential direction R of the solid portion 101, the first pressing bodies 111 are configured to be deformable, when the first pressing bodies 111 provide the force F to the profiling surface 121, the outer surface of the first pressing bodies 111 includes pressing areas 1111 for pressing against the second supporting members 12, and the orthographic projection of the pressing areas 1111 of each first pressing body 111 on the second supporting members 12 covers the profiling surface 121.
In this embodiment, the display panel 2 and the cover plate 3 are attached by the combined action of the first pressing bodies 111, the first pressing bodies 111 are adjustable in size in the direction perpendicular to the profiling surface 121, and the first pressing bodies 111 are deformable, so that during the adjustment of the size, the area contact with the second supporting member 12 is changed from the initial line contact to the subsequent surface contact, and the pressing area 1111 is formed by the pressing part between the first pressing bodies and the second supporting member, so that the part of the display panel 2 corresponding to the pressing area 1111 is attached to the cover plate 3. In the attaching process, the first pressing bodies 111 are sequentially adjusted in size along the circumferential direction R of the solid portion 101 from one first pressing body 111, and the portion of the display panel 2 corresponding to each first pressing body 111 is sequentially attached to the cover plate 3, so that the front projection of the pressing area 1111 of each first pressing body 111 on the cover plate covers the cover plate together, and the display panel and the cover plate are completely attached.
In a possible embodiment, the first press-fit body 111 is a cylindrical structure, the first press-fit body 111 includes a first state and a second state, the diameter of the first press-fit body 111 in the second state is larger than the diameter of the first press-fit body 111 in the first state, and when the first press-fit body 111 is in the second state, the first press-fit body 111 can apply the force F to the second support 12.
In the above embodiment, the first press body 111 is a cylindrical structure body so as to roll along the circumferential direction R of the solid portion 101 and to adapt to the position of the arc-shaped corner in the solid portion. The first press-fit body 111 includes a first state and a second state, and can provide support for the second support 12 when the first press-fit body 111 is in the first state; when the first pressing body 111 is in the second state, the first pressing body 111 may provide a larger supporting force (i.e. the acting force F) for the second supporting member 12 so that the second supporting member 12 is stretched, a contact position of the second supporting member 12 with the first pressing body 111 protrudes toward a side facing away from the first supporting member 10, and because the first pressing body 111 may roll along the circumferential direction R of the solid portion 101, when the first pressing body 111 rolls into a region opposite to the profiling surface 121 and the attaching device 1 is located on a side facing away from the display surface of the cover plate 3, the first pressing body 111 in the second state may make the region opposite to the first pressing body 111 in the profiling surface 121 approach toward the side facing toward the cover plate 3, so that the display panel 2 attached to the profiling surface 121 approaches toward the side facing away from the display surface of the cover plate 3, and the display panel 2 gradually contacts and attaches to the cover plate 3 along with the rolling of the first pressing body 111 due to the preset angle, wherein the rolling direction of the first pressing body 111 is along the circumferential direction R of the solid portion 101.
In one possible embodiment, the first press body 111 comprises a cylinder with a receiving cavity and a fluid control assembly; a fluid control assembly is in communication with the receiving chamber for controlling fluid flow into the receiving chamber to transition the first press-fit body 111 between the first state and the second state.
In the above embodiment, the first pressing body 111 includes a cylinder having a receiving cavity and a fluid control component in communication with the receiving cavity, and the fluid control component can control fluid to flow into the receiving cavity, so that the diameter of the first pressing body 111 is enlarged to be in the second state, so as to attach the display panel 2 to the cover plate 3; the fluid control assembly can also control the fluid in the receiving cavity to flow out of the receiving cavity and be recycled to the fluid control assembly, so that the diameter of the first pressing body 111 is equal to the minimum distance between the second support 12 and the second support 12, and the second support 12 is supported.
When the press-fit assembly includes a plurality of first press-fit bodies 111, an assembly gap exists between adjacent first press-fit bodies 111 in the assembly process, so that the assembly gap is reduced or eliminated in the fitting process, i.e. after the diameter of the first press-fit bodies 111 is increased, so as to provide a reducing space for the first press-fit bodies 111; and/or, as part of the second supporting piece 12 is jacked in the diameter-changing process of the first pressing body 111, the adjacent first pressing body 111 moves towards the direction close to the cover plate 3 under the extrusion of the first pressing body 111, so that a diameter-changing space is provided for the first pressing body 111.
In one possible embodiment, the fluid includes at least one of a liquid and a gas, and the present application is not particularly limited.
When the fluid is a liquid, hydraulic oil or the like may be used. When a gas is used as the fluid, an inert gas or the like may be used. The use of a fluid with high stability prevents corrosion or the like to the first pressure body 111, and can extend the service life thereof.
In one possible embodiment, as shown in fig. 6, the second pressing body 112 is a cylindrical structure, and the diameter of the second pressing body 112 is the same as the diameter of the first pressing body 111 in the first state, so that when the first pressing body 111 is in the first state, the second pressing body 112 and the first pressing body 111 support the second supporting member 12 at the same time, so that the profiling surface 121 is not easy to deform, and the profiling effect on the display panel 2 is better.
Specifically, the number of the second press-fit bodies 112 is plural to enhance the support of the second support member.
In another possible embodiment, as shown in fig. 9, the second pressing body 112 may also be a supporting body filled between the first supporting member and the second supporting member, the shape is not limited, the number may be one or more, and the shape and the number of the second pressing bodies 112 are not particularly limited in this application.
Wherein, since the second press-fit body 112 and the first press-fit body 111 have an assembly gap in the assembly process, the assembly gap is reduced or eliminated in the fitting process, i.e. after the diameter of the first press-fit body 111 is increased, so as to provide a reducing space for the first press-fit body 111; and/or, as part of the second supporting member 12 is jacked up in the diameter-changing process of the first pressing body 111, part of the second pressing body 112 moves towards the direction close to the cover plate 3 under the extrusion of the first pressing body 111, so that a diameter-changing space is provided for the first pressing body 111.
In a possible embodiment, the colloid between the display panel 2 and the profiling surface 121 is ultraviolet curing adhesive, which can be removed from the adhesive by irradiating ultraviolet rays, in this embodiment, the first support 10 further includes a hollow space 102 formed by surrounding the solid portion 101, the laminating device 1 further includes a light transmission area and an illumination component 13, and the profiling surface 121 is located in the light transmission area; the illumination assembly 13 is adjustably disposed in the hollow space 102 for providing ultraviolet light to the light transmission area.
In the above embodiment, at least a part of the area of the attaching device 1 has a light-transmitting structure to form a light-transmitting area, the profiling surface 121 is formed in the light-transmitting area, the illumination assembly 13 can be moved into the hollow space 102 after the display panel 2 is attached to the cover plate 3, the illumination assembly 13 can be moved in the hollow space 102 to provide ultraviolet rays for each position of the light-transmitting area, and the ultraviolet rays irradiate the ultraviolet glue between the display panel 2 and the profiling surface 121 after passing through the light-transmitting area, so that the ultraviolet glue loses viscosity, and the display panel 2 is separated from the profiling surface 121. The screen body is not damaged in the embodiment, the ultraviolet curing adhesive is adopted, so that the display panel 2 and the profiling surface 121 are good in bonding effect and convenient to detach, and the ultraviolet curing adhesive can be positioned on the profiling surface 121 and recycled, so that the process and the cost are saved.
In the above embodiment, the illumination component 13 may be an ultraviolet lamp strip capable of emitting ultraviolet rays, the shape of the illumination component is rectangular strip, the light emitting surface is one side surface of the rectangular strip, in the process of debonding ultraviolet debonding glue, the ultraviolet lamp strip is placed in the hollow space 102, so that the light emitting surface of the ultraviolet lamp strip is opposite to the light transmitting area, and the ultraviolet lamp strip is moved, in the moving process, only the areas opposite to the profiling surface in the light transmitting area are required to be ensured to be irradiated by the light emitting surface of the ultraviolet lamp strip, so that the debonding of ultraviolet debonding glue located between the display panel and the profiling surface is ensured.
In the above embodiment, in order to ensure that the bonding device 1 can form the light-transmitting area, the first supporting member 10 is made of a transparent material, specifically an acrylic material, which has both light-transmitting and supporting properties, and meets the material requirement of the first supporting member. The material of the first pressing body 111 is an elastic material, specifically may be rubber, so that the first pressing body 111 can be conveniently changed between the first state and the second state. The second press-fit body 112 is also made of a transparent material, and specifically may be an acrylic material, which has both light transmission and supporting properties, and meets the material requirement of the first supporting member. The material of the second supporting member 12 may be carbon steel, and the thickness of the second supporting member 12 is 0.2mm to 0.5mm, so that the second supporting member 12 is transparent and can deform under the action of the first pressing body 111 while having a certain supporting effect.
In one possible embodiment, the colloid between the display panel 2 and the profiling surface 121 is a chemical agent adhesive, and the chemical agent adhesive can be released after contacting with the chemical agent, in this embodiment, after the display panel 2 is attached to the cover plate 3, the chemical agent may be injected between the display panel 2 and the profiling surface 121, so that the chemical agent adhesive contacts with the chemical agent adhesive between the display panel 2 and the profiling surface 121, so that the chemical agent adhesive loses adhesion, and the separation between the display panel 2 and the profiling surface 121 is realized.
In one possible embodiment, the display panel 2 and the cover plate 3 are attached by a glue, and the glue between the display panel 2 and the cover plate 3 may be an optical glue, for example OCA, which is not particularly limited in this application.
The application also provides a bonding method, as shown in fig. 10, using any one of the bonding devices 1 provided in the above embodiments of the application to bond the cover plate 3 and the display panel 2, as shown in fig. 6, the bonding method includes:
s100, the display panel 2 is attached to the profiling surface 121 to form a profiling initiator, as shown in fig. 11.
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. 12 and 13.
And S300, adjusting the dimension of the first pressing body 111 in the direction perpendicular to the profiling surface so as to apply force to the profiling surface to enable the display panel to be attached to the cover plate, as shown in fig. 14.
S400, the display panel 2 is peeled off from the profiling surface 121.
In the above bonding method, the display panel 2 is firstly contoured, the diameter of the first pressing body 111 is adjusted to be the same as the minimum distance between the first supporting member and the second supporting member, so as to provide support for the second supporting member 12, so that the contoured surface is not easy to deform, and the display panel 2 and the contoured surface 121 are bonded, so that the display panel 2 is contoured to have a shape matched with the cover plate 3, and the display panel 2 bonded to the contoured surface 121 and the bonding device 1 together form a contoured initial piece; 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; then, by adjusting the dimension of the first press body 111 in the direction perpendicular to the profiling surface and applying a force to the profiling surface, the profiling surface 121 applies a force F to the display panel 2, so that the display panel 2 approaches and fits against the cover plate 3.
When the pressing assembly 11 includes only one first pressing body 111, the position of the display panel 2 subjected to the force F can be moved along the circumferential direction R of the solid portion 101 by moving the first pressing body 111 along the circumferential direction R of the solid portion 101, so as to achieve complete fitting between the display panel 2 and the cover plate 3.
When the pressing assembly 11 includes a plurality of first pressing bodies 111, the size of one of the first pressing bodies 111 can be adjusted, and the first pressing body 111 is moved along the circumferential direction R of the solid portion 101, so that the other first pressing bodies 111 move synchronously, and the position of the display panel 2 subjected to the acting force F moves along the circumferential direction R of the solid portion 101, so that the display panel 2 and the cover plate 3 are completely attached.
When the pressing assembly 11 includes a plurality of deformable first pressing bodies 111, the size of each first pressing body 111 may be sequentially adjusted along the circumferential direction R of the solid portion 101, so that a portion of the display panel 2 corresponding to each first pressing body 111 after the size adjustment is sequentially attached to the cover plate 3. The position of the display panel 2 subjected to the force F at the time of bonding moves along the circumferential direction R of the solid portion 101, thereby achieving complete bonding of the display panel 2 and the cover plate 3.
When the pressing assembly 11 includes at least one first pressing body 111 and one second pressing body 112, the size of one first pressing body 111 can be adjusted, and the first pressing body 111 is moved along the circumferential direction R of the solid portion 101, so that the other first pressing body 111 and the second pressing body 112 move synchronously, and the position of the display panel 2 subjected to the acting force F moves along the circumferential direction R of the solid portion 101, so that the display panel 2 and the cover plate 3 are completely attached.
In the above-mentioned laminating process, when the diameter of the first pressfitting body 111 changes so that the profile modeling surface exerts effort F to the display panel, display panel 2 is jacked (namely is close to the apron) by first pressfitting body 111, display panel forms the angle of predetermineeing with the apron one side that deviates from the display surface, owing to the existence of predetermineeing the angle, can make display panel 2 and apron deviate from one side of display surface and contact gradually, promptly along with first pressfitting body 111 along solid portion circumference motion, the position of effort changes gradually, each region in the display panel 2 is jacked gradually in proper order, the position of being jacked in the display panel is laminated with the apron at first, consequently, display panel and apron deviate from the change direction of effort laminating gradually, thereby can prevent to contact in advance, prevent to produce fold, bubble etc. laminating poorly, laminating quality has been promoted.
In a possible embodiment, specifically, taking the cover 3 as a double-ring-type curved cover, and the display panel 2 as a flexible display panel as an example, when the first pressing body 111 is in line contact with the second supporting member 12, in step S200, the method specifically includes:
s211, the cover plate 3 includes a first plane portion, curved surface portions (curved surface portions B1 and B2) disposed on both sides of the first plane portion in the first direction, and a second plane portion A2 and a third plane portion A3 disposed on one side of each curved surface portion away from the first plane portion, the cover plate 3 includes a first central axis extending along the second direction, the first central axis is located in the first plane portion A1, and the first central axis is perpendicular to the enclosing direction of the cover plate 3. Along the enclosing direction of the cover plate 3, the shortest distance between the first central axis and the edge of the second plane part A2 far away from the curved surface part B1 is equal to the shortest distance between the first central axis and the edge of the third plane part A3 far away from the curved surface part B2
S212, the display panel 2 in the profiling initial piece comprises a first side edge and a second side edge which are arranged along the surrounding direction of the cover plate 3 and a second central axis which extends along the second direction, and the shortest distance between the first side edge and the second side edge is the same as the shortest distance between the second central axis.
S213, aligning the second central axis of the profiling initial piece with the first central axis of the cover plate 3.
In the above embodiment, the alignment of the display panel and the cover plate after lamination can be ensured to be accurate, and the lamination effect of the display panel and the cover plate can be ensured.
In a possible implementation manner, in step S300, the method specifically includes:
the first pressing body 111 is rolled or slid along the circumferential direction R of the solid portion 101 from the second central axis, so that the display panel 2 and the cover plate 3 are gradually attached along the direction from the first central axis to the edge of the second plane portion A2 away from the curved portion B1, and the first central axis and the edge of the third plane portion A3 away from the curved portion B2.
In the above embodiment, the second central axis of the profiling initiator is aligned with the first central axis of the cover plate 3, and the first press body 111 is aligned with the second central axis, and bonding is started from this position. Specifically, the display panel 2 includes first and second sides arranged along the circumferential direction R of the solid portion 101. In the laminating process, can laminate to first side by the position of second axis, then laminate to another side direction again to the position of second axis for display panel 2 and apron 3 laminate gradually along the first side direction of second axis to display panel 2, then laminate gradually along the first side direction of second axis to display panel 2, thereby can make display panel 2 and apron 3 after the laminating is accomplished align completely, and this kind of laminating mode can prevent effectively that bubble or fold from producing.
In a possible embodiment, specifically, taking the cover 3 as a double-winding curved cover, and the display panel 2 as a flexible display panel as an example, when the first pressing body 111 is in surface contact with the second supporting member 12, that is, the first pressing body 111 is configured to be deformable, the outer surface of the first pressing body 111 includes a pressing area 1111 for pressing against the second supporting member 12, in step S200, the method specifically includes:
s221, 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.
S222, 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.
S223, aligning the second center axis area of the display panel 2 with the first center axis area of the cover plate 3.
During lamination, firstly, the dimensions of the first lamination bodies 111, along the direction perpendicular to the profiling surface, of the pressing areas 111 and the second center axis areas of the first lamination bodies 111 are adjusted to provide an acting force F for the display panel, so that the parts, opposite to the areas, of the display panel are firstly laminated with the cover plate 3, and then the dimensions of the first lamination bodies along the direction perpendicular to the profiling surface are sequentially adjusted along the circumferential direction of the solid part, so that the display panel 2 and the cover plate 3 are gradually laminated, and lamination defects such as bubbles and wrinkles are avoided. In one possible embodiment, the colloid between the display panel 2 and the profiling surface 121 is ultraviolet photoresist, and at least part of the area of the attaching device 1 has a light-transmitting structure to form a light-transmitting area, and the profiling surface 121 is formed in the light-transmitting area. In this embodiment, the step S300 and the step S400 may be alternately performed, that is, while the part of the display panel 2 is attached to the cover plate 3 by the first press-fit body 111, the part of the display panel 2 that has been attached to the cover plate 3 is peeled off from the profiling surface 121, and during the peeling, the illumination unit 13 may be moved into the hollow space 102 of the solid portion 101, and ultraviolet light may be irradiated to a region of the light-transmitting region that is opposite to the part that has been attached to the part, so that the part of the display panel 2 that has been attached to the cover plate 3 is peeled off from the profiling surface 121. In another possible embodiment, the peeling may be performed after the display panel 2 and the cover plate 3 are completely bonded. Specifically, when the colloid between the display panel 2 and the profiling surface 121 is ultraviolet-curing adhesive, and at least a part of the area of the attaching device 1 has a light-transmitting structure to form a light-transmitting area, when the profiling surface 121 is formed in the light-transmitting area, after the display panel 2 is completely attached to the cover plate 3, the illumination assembly 13 is moved into the hollow space 102 of the solid portion 101, and ultraviolet light is irradiated to the portion of the light-transmitting area opposite to the profiling surface 121, so that the display panel 2 is completely peeled off from the profiling surface 121.
When the colloid between the display panel 2 and the profiling surface 121 is a chemical adhesive, after the bonding is completed, a chemical reagent can be injected between the display panel 2 and the profiling surface 121 to contact the chemical reagent adhesive between the display panel 2 and the profiling surface 121, so that the chemical reagent adhesive loses viscosity, and the separation of the display panel 2 and the profiling surface 121 is realized.
In one possible embodiment, as shown in fig. 14, in step S200, the minimum distance between the contoured surface 121 and the surface of the cover plate 3 facing the side of the second support 12 is in the range of: (h+0.2) mm to (h+0.5) mm, where h is the thickness of the display panel 2 in millimeters.
In the above embodiment, the minimum distance between the profiling surface 121 and the surface of the cover plate 3 facing the second support 12 side is set to (h+0.2) mm to (h+0.5) mm to ensure that the minimum distance between the display panel 2 attached to the profiling surface 121 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, thereby preventing occurrence of poor attachment phenomena such as bubbles and wrinkles, improving attachment quality, and ensuring that the distance between the profiling surface 121 and the surface of the cover plate 3 facing the second support 12 side is within the deformation range of the second support and the first press body 111 to meet attachment requirements.
In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, which are intended to be included in the scope of the present application.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be different from the order in the embodiments, or several steps may be performed simultaneously.
Claims (11)
1. A laminating device for laminating display panel and apron, its characterized in that, laminating device includes:
the first supporting piece comprises a solid part, and at least part of the outer surface of the solid part is a supporting profiling surface for profiling the display panel;
The pressing assembly is arranged on the outer surface of the solid part and comprises at least one first pressing body;
the second support piece is arranged on one side, away from the solid part, of the pressing assembly, and at least part of the outer surface of the second support piece is a profiling surface for profiling the display panel;
the size of the first pressing body in the direction perpendicular to the profiling surface is adjustable so as to apply acting force to the profiling surface and enable the display panel to be attached to the cover plate;
the pressing assembly further comprises a second pressing body used for supporting the second supporting piece, and the first pressing body and the second pressing body are arranged along the circumferential direction of the solid part;
the first pressing body and the second pressing body can synchronously move along the circumferential direction of the solid part.
2. The fitting device of claim 1, wherein the press-fit assembly comprises a plurality of the first press-fit bodies, and the plurality of the first press-fit bodies are uniformly arranged along the circumferential direction of the solid portion.
3. The fitting device of claim 1, wherein the press-fit assembly comprises a plurality of first press-fit bodies, the plurality of first press-fit bodies being uniformly arranged along a circumferential direction of the solid portion, the first press-fit bodies being deformably disposed, an outer surface of the first press-fit bodies including a press-fit region for pressing against the second support member when the first press-fit bodies provide the force to the contoured surface, an orthographic projection of the press-fit region of each of the first press-fit bodies on the second support member covering the contoured surface.
4. The fitting device of claim 1, wherein the first fitting body is a cylindrical structure, the first fitting body comprising a first state and a second state, the first fitting body having a larger diameter in the second state than the first fitting body, the first fitting body being configured to apply the force to the second support when the first fitting body is in the second state.
5. The bonding device according to claim 4, wherein the first press-fit body comprises:
a cylinder having a receiving cavity;
and the fluid control assembly is communicated with the containing cavity and is used for controlling the fluid flowing into the containing cavity so as to enable the first pressing body to be changed between the first state and the second state.
6. The fitting device of claim 5, wherein the fluid comprises at least one of a liquid and a gas.
7. The bonding apparatus according to claim 4, wherein,
the second pressing body is a cylindrical structure body, and the diameter of the second pressing body is the same as that of the first pressing body in the first state.
8. The fitting device of claim 1, wherein the first support further comprises a hollow space defined by the solid portion, the fitting device further comprising a light transmission region and an illumination assembly, the contoured surface being located in the light transmission region;
the illumination assembly is adjustably arranged in the hollow space.
9. The fitting device of claim 1, wherein the first support member is a transparent material;
the material of the first pressing body is transparent.
10. A bonding method for bonding a cover plate and a display panel using the bonding apparatus according to any one of claims 1 to 9, the bonding method comprising:
attaching the 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;
adjusting the dimension of the first pressing body in the direction perpendicular to the profiling surface so as to apply acting force to the profiling surface and enable the display panel to be attached to the cover plate;
and peeling the display panel from the profiling surface.
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 minimum distance between the profiling surface and the surface of the cover plate facing the side of the second supporting piece is in the range of: (h+0.2) to (h+0.5) mm, wherein h is the thickness of the display panel in millimeters.
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