CN112248600B - Laminating device and laminating method - Google Patents
Laminating device and laminating method Download PDFInfo
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- CN112248600B CN112248600B CN202011127231.0A CN202011127231A CN112248600B CN 112248600 B CN112248600 B CN 112248600B CN 202011127231 A CN202011127231 A CN 202011127231A CN 112248600 B CN112248600 B CN 112248600B
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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
- B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
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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
- B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
- B32B37/003—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality to avoid air inclusion
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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
- B32B41/00—Arrangements for controlling or monitoring lamination processes; Safety arrangements
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a laminating device and a laminating method, wherein the laminating device is used for laminating a curved surface cover plate and a flexible part, and the curved surface part of the curved surface cover plate has a variable curvature radius; the measuring system is used for measuring the curvature radius of the curved cover plate; and the control system is connected with the measuring system and used for adjusting the radius of the arc-shaped body according to the measured curvature radius. The laminating device can solve the problem of poor laminating of the curved surface in the laminating process.
Description
Technical Field
The invention relates to the technical field of display, in particular to a laminating device and a laminating method.
Background
In recent years, OLED flexible display panels have been widely applied to various electronic products as display components of electronic devices, and curved panels have become mainstream design schemes in the display field and are favored by consumers. The curved screen is mainly curved on two sides or curved on four sides at present, the curved surface part of the curved screen is an arc angle designed by variable curvature, the laminating difficulty is high, and poor laminating such as bubbles and black spots is easy to occur.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a bonding apparatus and a bonding method, so as to solve the problem of poor curved surface bonding in the existing bonding process.
In order to solve the technical problems, the invention provides the following technical scheme:
in one aspect, the invention provides a laminating device for laminating a curved cover plate and a flexible part, wherein the curved part of the curved cover plate has a variable curvature radius, and the laminating device comprises a laminating platform, a flexible part and a flexible part, wherein the laminating platform comprises an arc part, and the arc part consists of a plurality of arc bodies with different radii; the measuring system is used for measuring the curvature radius of the curved cover plate; and the control system is connected with the measuring system and used for adjusting the radius of the arc-shaped body according to the measured curvature radius.
In one embodiment, the radius R of the arc satisfies the relationship: r = R '-t, wherein R' is a radius of curvature of the curved cover plate, and t is a thickness of the flexible member.
In one embodiment, the curved portion of the curved cover plate has at least two different radii of curvature, and the respective curved bodies include at least first and second curved bodies of different radii.
In one embodiment, the arcuate body is an elastomer; preferably, the elastomer comprises silicone rubber and silicon rubber.
In one embodiment, a plurality of the arc-shaped bodies are detachably connected through a buckle, a thread or a magnet.
In one embodiment, the first arc-shaped body comprises a first air bag, the second arc-shaped body comprises a second air bag, and the control system controls the air input of the first air bag and the air input of the second air bag according to the measured curved surface radius so as to adjust the radius of the first arc-shaped body and the radius of the second arc-shaped body.
In one embodiment, the first arc further comprises a first air inlet valve, the second arc further comprises a second air inlet valve, and the first air cell and the second air cell are inflated or deflated through the first air inlet valve and the second air inlet valve to adjust the radius of the first arc and the second arc.
In one embodiment, the flexible component comprises at least one of a flexible display, a polarizing layer, a heat sink layer, and an adhesive layer.
In another aspect, the present invention provides a method for attaching a curved cover plate to a flexible member, where a curved portion of the curved cover plate has a varying radius of curvature, the method including:
providing a curved cover plate, and placing a surface to be bonded of the curved cover plate close to a bonding platform, wherein the bonding platform comprises an arc part, and the arc part consists of a plurality of arc bodies with different radiuses;
measuring the curvature radius of the curved surface cover plate, and sending the measured curved surface radius data to a control system; adjusting the number and the radius of the circular arcs and the arc-shaped bodies;
adsorbing the flexible component on the attaching platform;
and attaching the flexible component to the curved cover plate.
In one embodiment, adjusting the number and radius of the arcs includes: and adjusting the number of the arc-shaped bodies according to the measured curved surface radius data, and inflating or deflating the arc-shaped bodies through an air inlet valve so as to adjust the radius of the arc-shaped bodies.
The embodiment of the invention provides a laminating device and a laminating method, wherein the curvature radius of a curved cover plate is measured through a measuring system and a control system, the curvature radius of a laminating platform is obtained according to the measured curvature radius, the radius of the laminating platform is completely matched with the curvature radius of the curved cover plate, the situation of over-pressure or too little downward pressure cannot occur in the laminating process, the occurrence of bad phenomena such as bubbles, black spots, broken pieces and the like caused by laminating is avoided, and the laminating yield is improved.
Drawings
Fig. 1 is a schematic view illustrating a shape of a curved cover plate used for attachment according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at B;
FIG. 3 is a partial cross-sectional view taken along line N-N of FIG. 2;
FIG. 4 is a schematic cross-sectional view of a bonding platform according to an embodiment of the present invention;
FIG. 5 is a schematic view showing a detailed assembly of the bonding stage shown in FIG. 4;
FIG. 6 is a schematic cross-sectional view of a conformable platform according to another embodiment of the present disclosure;
fig. 7 is a schematic view illustrating a bonding process according to an embodiment of the invention.
Icon:
10-curved surface cover plate; 11-long-edge curved face; 12-short edge curved face; 21-a first radius of curvature; 22-a second radius of curvature; 23-a third radius of curvature; 24-a fourth radius of curvature; 25-fifth radius of curvature; 30-a fitting platform; 31-a first arc-shaped body; 32-a second arcuate body; 33-a third arc-shaped body; 34-a fourth arc; 35-a fifth arc; 41-a first inflation valve; 42-a second inflation valve; 43-a third inflation valve; 44-a fourth inflation valve; 45-fifth inflation valve; 46-a first support means; 47-a second support platform; 48-a first adsorption unit; 49-a second adsorption device; 20-a flexible member; 301-snap fit.
Detailed Description
As described in the background art, in the prior art, the arc angle of the curved cover plate of the curved screen is designed with variable curvature, while the existing laminating device is a curved surface with fixed curvature, when the laminating device is used for rolling and laminating, laminating pressure is applied between the curved cover plate and the flexible component, when the curvature change of the transition area is too large, if the laminating pressure is small, the position with large curvature radius of the transition area of the screen body cannot be completely laminated, and bubbles are easy to appear during laminating; and if the attaching pressure is too large, the problems of black spots, fragments and the like of the flexible part can be caused. In order to solve the problems, the inventor researches and discovers that by providing the variable-curvature attaching device, the curvature change of the attaching device is completely matched with the curvature change of the cover plate, the attaching pressure is uniform, the probability of generating bad phenomena such as bubbles, black spots or fragments is greatly reduced, and the production yield is improved. And the curved surface quantity and the radius of laminating device can artificially be adjusted to the curved surface apron of coping different forms reduces the preparation degree of difficulty of laminating device.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived from the embodiments of the present invention by a person skilled in the art or without any inventive step, are within the scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic view illustrating a curved cover plate for use in a bonding process according to an embodiment of the present invention. The curved cover plate 10 is a four-curved cover plate, the long side and the short side are both curved surfaces with variable curvature radius, and the curvature radius of the long side curved surface part 11 is the same as or different from that of the short side curved surface part 12. In one embodiment, the long-side curved surface portion 11 is composed of a plurality of arcs with different curvature radii, and the short-side curved surface portion 12 is composed of a plurality of arcs with different curvature radii, at the transition region B between the long side and the short side, the curvature radius will be transited from the curvature radius of the short side to the curvature radius of the long side, and the curvature radius of the cover plate will be changed continuously. For a clearer description of the curvature change, the position of the transition region B is enlarged and a cross-sectional view thereof is obtained.
Fig. 2 is an enlarged view at B in fig. 1, and fig. 3 is a partial cross-sectional view taken along line N-N in fig. 2, which will be described in detail with reference to fig. 2 and 3.
Referring to fig. 2 and 3, the curved cover plate includes a plurality of arcs with varying curvature radii at the transition area B between the long side and the short side, the variation of curvature radii in the cross-sectional view is divided into blocks and the curvature radii are measured, and it can be seen that the cross-section along the line N-N is composed of 5 varying curvature radii, which are the first curvature radius 21, the second curvature radius 22, the third curvature radius 23, the fourth curvature radius 24 and the fifth curvature radius 25. The 5 changes of curvature radius form the changes of the shapes of the transition areas of the long side and the short side of the cover plate, so that firstly, the change of curvature of the area is tested, and the radius value R' of the area is collected. In this embodiment, the curved surface cover plate includes five arcs with curvature radii, and it can be understood that different curved surface cover plates are adopted in other embodiments, and the curved surface cover plate has six or seven arcs with various curvature radii in the transition area between the long side and the short side.
Specifically, the curvature change condition of the curved-surface cover plate 10 is measured by using a measurement system, and the curvature change condition can be directly read and measured by using drawing software, or the cover plate is scanned by using laser or acoustics to obtain a cover plate topography, the curvature change of the cover plate is fitted in the topography, and the fitting curves include, but are not limited to, circular arcs, elliptic arcs, spline curves and the like.
Referring to fig. 4, fig. 4 is a schematic cross-sectional view of a bonding platform according to an embodiment of the invention. The curvature change condition of the transition region is obtained by measuring and fitting curvature data of the curved surface of the cover plate, according to a formula R = R '-t, wherein R' is the curvature radius of the curved cover plate, t is the thickness of the flexible part to be attached, and the curvature radius R of the attaching platform matched with the curved cover plate, namely the curvature radius of the arc part, is obtained through calculation. The camber change condition of laminating platform and the camber change condition of curved surface apron match completely this moment, adopt the quantity and/or the curvature radius of the control system adjustment arc body of being connected with measurement system, specifically include: the first arc-shaped body 31 corresponds to the first curvature radius 21 of the curved cover plate, and is calculated by the difference between the first curvature radius 21 and the thickness t of the flexible component to be attached, similarly, the second arc-shaped body 32, the third arc-shaped body 33, the fourth arc-shaped body 34, and the fifth arc-shaped body 35 correspond to the second curvature radius 22, the third curvature radius 23, the fourth curvature radius 24, and the fifth curvature radius 25 of the curved cover plate in fig. 3, and the curvature radii thereof can be calculated by the above formula.
In addition, the arc length corresponding to the first arc-shaped body 31 in fig. 4 is equal to the arc length of the first curvature radius 21 in fig. 3, similarly, the arc length corresponding to the second arc-shaped body 32 in fig. 4 is equal to the arc length of the second curvature radius 22 in fig. 3, the arc length corresponding to the third arc-shaped body 33 is equal to the arc length of the third arc-shaped body 23, the arc length corresponding to the fourth arc-shaped body 34 is equal to the arc length of the fourth curvature radius 24, and the arc length corresponding to the fifth arc-shaped body 35 is equal to the arc length of the fifth curvature radius 25, such arc lengths are equal to ensure that the rolling process of the bonding platform can be completely matched with the length and width of the cover plate, when the bonding platform unilaterally along the corresponding regions of the first arc-shaped body 31, the second arc-shaped body 32, the third arc-shaped body 33, the fourth arc-shaped body 34, and the fifth arc-shaped body 35, the flexible components to be bonded can be sequentially bonded with the curved surface portion of the curved surface cover plate to be bonded, so as to ensure the consistency of the pressing amount of the pressing of the bonding device, and further make the pressure in the bonding process uniform, thereby greatly reducing the production yield of black spots and greatly reducing the risk of bad production.
In an embodiment, referring to fig. 4, the attaching platform 30 is an elastic body, and the first arc-shaped body 31, the second arc-shaped body 32, the third arc-shaped body 33, the fourth arc-shaped body 34, and the fifth arc-shaped body 35 can be made of silicon rubber or silicon rubber. Silica gel and silicon rubber material are simple easily obtained, and the laminating platform 30 of silica gel material can make laminating flexible region with wait that the laminating is regional well laminating, and the silica gel material form is good to make the structure atress more even, reduced the risk of excessive pressure.
In another embodiment, the fit platform is a detachable structure, and the arc-shaped body parts are detachably connected through bayonets, threads or magnets. As shown in fig. 5. FIG. 5 is a detailed view of the bonding stage shown in FIG. 4. The arc bodies of the laminating platform are spliced through the buckles 301, the third arc body 33 can be taken out and installed from the second arc body 32 and the fourth arc body 34 in the drawing, so that the arc bodies with the matched curvature radius of the section of the cover plate obtained through measurement can be replaced, the detachable replacement greatly improves the utilization rate of the laminating platform, the laminating between different flexible laminating structures with different curvature sizes can be realized by the same laminating platform, and the production cost is greatly reduced.
In another embodiment, the conformable platform may be designed as an inflatable structure. As shown in fig. 6, fig. 6 is a schematic cross-sectional view of a fitting platform according to another embodiment of the present invention. In the figure, the arc-shaped body comprises inflatable air bags, the first air bag 31, the second air bag 32, the third air bag 33, the fourth air bag 34 and the fifth air bag 35 respectively correspond to the first air inlet valve 41, the second air inlet 2, the third air inlet valve 43, the fourth air inlet valve 44 and the fifth air inlet valve 45, and when the bonding operation is needed, the inflatable air bags can be inflated through the air inlet valves so as to expand the air bags to adjust the radius of the air bags to the radius matched with the curved cover plate; when the air inflation device is not needed to be used, the air inflation valve can be opened to exhaust air, in addition, the radius and the hardness of the attaching device can be adjusted by adjusting the air inflation quantity, when the air inflation pressure is large, the radius of the attaching device is increased, the hardness is large, and when the air inflation pressure is reduced, the radius of the attaching device is reduced, and the hardness is reduced. This kind of design makes same laminating device can correspond different apron, can finely tune radius and hardness when design or manufacturing have difference, very big emergence of having avoided the waste provides more design and production allowance for design and producers.
In the embodiment of the present invention, the flexible component 20 attached to the curved cover plate 10 includes one or more of a flexible display screen, a polarizing layer, a heat dissipation layer, and an adhesive layer, and the flexible display screen may be an AMOLED display screen, a PMOLED display screen, a micro-LED display screen, a QLED display screen, or an LCD display screen.
By adopting the laminating device provided by the embodiment of the invention, the curvature radius of the curved cover plate is measured through the measuring system and the control system, and the curvature radius of the laminating platform is obtained according to the measured curvature radius, at the moment, the radius of the laminating platform is completely matched with the variable curvature radius of the curved cover plate, so that the situation of over-pressure or too little down-pressure cannot occur in the laminating process, the occurrence of bad phenomena such as bubbles, black spots and the like caused by laminating is avoided, and the laminating yield is improved.
The invention also provides a fitting method for fitting the curved cover plate with the flexible component, wherein the curved part of the curved cover plate has a variable curvature radius. Referring to fig. 7, fig. 7 is a schematic view illustrating a bonding process according to an embodiment of the invention. The method comprises the following specific steps:
s1: providing a curved cover plate 10, and placing a surface to be adhered of the curved cover plate 10 close to an adhering platform 30, wherein the adhering platform 30 comprises an arc part, and the arc part consists of a plurality of arc bodies with different radiuses;
s2: measuring the curvature radius of the curved surface cover plate 10, and sending the measured curved surface radius data to a control system;
s3: adjusting the number and the radius of the arc-shaped bodies;
s4: adsorbing the flexible member 20 on the attaching platform 30;
s5: the flexible member 20 is attached to the curved cover plate 10.
The following will explain in detail the S1 and S2 fitting processes with respect to fig. 7, the curvature radius of the curved cover plate 10 is measured by using a measurement system, the measurement mode may be directly read and measured by using drawing software, or the curved cover plate 10 is scanned by using a laser or an acoustic probe to obtain a cover plate topography, the curvature change of the curved cover plate 10 is fitted in the topography, the fitting curves include but are not limited to circular arcs, elliptical arcs, spline curves, etc., the data of the curved cover plate 10 measured by the measurement system is transmitted to a control system, and the control system can adjust the number and radius of the arc-shaped bodies of the fitting platform according to the data obtained by the test.
Specifically, the number and the radius of the arc-shaped bodies can be adjusted in S3 by controlling in a manner shown in fig. 5, that is, the attaching platform is of a detachable structure, each part is detachably linked by bayonet threads or magnets, and the third arc-shaped body 33 in fig. 5 can be taken out and mounted from the second arc-shaped body 32 and the fourth arc-shaped body 34, so that the arc-shaped bodies matched with the curvature radius of the cross section of the cover plate obtained by measurement can be replaced and installed.
Specifically, the number and radius of the arc-shaped bodies in S3 can also be adjusted in the manner shown in fig. 6, and fig. 6 is a schematic cross-sectional view of a fitting platform according to another embodiment of the present invention. In fig. 6, the arc-shaped bodies are inflatable air bags, wherein the first arc-shaped body 31, the second arc-shaped body 32, the third arc-shaped body 33, the fourth arc-shaped body 34 and the fifth arc-shaped body 35 respectively include a first air inlet valve 41, a second air inlet valve 42, a third air inlet valve 43, a fourth air inlet valve 44 and a fifth air inlet valve 45, respectively, and when the bonding operation is required, the air bags can be inflated through the air inlet valves, so that the air bags are expanded to adjust the radius of the air bags to the radius corresponding to the curved cover plate.
Before the flexible component 20 is attached to the attachment platform 30 in S4, the method further includes placing the flexible component 20 on the surface to be attached of the curved cover 10, and controlling the distance position of the flexible component 2 relative to the curved cover 10 by using the first attaching device 48 and the first supporting device 46.
Specifically, the flexible component 20 includes one or more of a flexible display screen, a polarizing layer, a heat dissipation layer, and an adhesive layer, and the flexible display screen may be an AMOLED display screen, a PMOLED display screen, a micro led display screen, a QLED display screen, or an LCD display screen.
S4, the flexible component 20 is attached to the attaching platform 30, as shown in fig. 7 (2), specifically including adjusting the flexible component 20 to incline to match the angle of the curved cover plate 10, and pre-aligning the attaching platform 30, so that the attaching platform 30 slightly contacts with the flexible component and the cover plate.
Specifically, if the radian of the cover plate is too large, the alignment position of the attaching platform 30 should be adjusted, so that the collision phenomenon is avoided in the pre-alignment process.
In S5, attaching the flexible component to the curved cover plate, as shown in fig. 7 (3), specifically includes pressing down the attaching platform 30, reading the attaching pressure in real time, controlling the attaching platform to translate and rotate, and meanwhile, adjusting the attaching portion of the flexible component 20 and the curved cover plate 10 to be parallel to each other, so that the parallel relationship between the lower surface of the attaching platform and the curved cover plate can be ensured, thereby avoiding the occurrence of a component force phenomenon that the actual pressing force is a component force of the reading pressure, and reducing the occurrence of a sliding phenomenon between the components in the attaching process.
Specifically, whether the contact surfaces of the curved cover plate 10 and the flexible component 20 are parallel or not should be monitored in real time, so that uniform pressure is ensured during fitting.
In the laminating process, the curved surface cover plate 10 to be provided is arranged close to the laminating platform 30, the curved surface cover plate 10 is fixedly adsorbed by the second adsorption device 49 on the side opposite to the laminating surface, the second adsorption device 49 is supported by the second support device 47, and the second adsorption device 49 and the second support device 47 are used for fixing the curved surface cover plate 10.
Specifically, the adsorption device includes, but is not limited to, vacuum adsorption, electrostatic adsorption, and other ways of adhering the adhesive material.
Specifically, after the laminating amount of the laminating platform exceeds half of the curved cover plate 10, the adsorption of the first adsorption device needs to be removed, and the adsorption device is ensured not to block the laminating platform for laminating operation.
The attaching process is as shown in fig. 7 (2), the curved cover plate and the like are adsorbed by the second adsorption device, the flexible component is adsorbed by the first adsorption device, and the adsorption positions of the first adsorption device and the second adsorption device include but are not limited to the middle positions of the cover plate and the flexible component.
Specifically, first adsorption equipment is connected first supporting platform, and second adsorption equipment connects second supporting platform, and first supporting platform and second supporting platform can carry out certain angular rotation, guarantee that the angle between apron and the flexible component can be adjusted for keep parallel between apron and the flexible component in the laminating process, make laminating pressure exert more evenly avoid bringing the shearing force.
Continuing with fig. 7, the cover and flexible member are attached, and the attachment platform is removed, thereby achieving the final attachment shown in fig. 4.
In one embodiment, the curved surface portion of the curved cover plate 10 is composed of five curved surfaces with different curvature radii, and the corresponding attachment platform 30 is an arc-shaped body with five different radii, and the radius R of the arc-shaped body satisfies the following relation: r = R '-t, where R' is the radius of curvature of the curved cover plate 10 and t is the thickness of the flexible member 20. The five arc bodies with different radiuses can be detachably connected, the number and the radius of the arc bodies can be correspondingly adjusted according to the shape of the curved surface cover plate, and the application range is wide.
Optionally, in this embodiment, the five arc-shaped bodies with different radii are inflatable airbags, and the calculated arc-shaped body semi-radial airbags are inflated to obtain the radius of the arc-shaped body meeting the requirement.
In the embodiment shown in fig. 7, the arc member of the attachment platform rolls from the transition region between the long side and the short side of the curved cover plate to press the flexible member onto the curved cover plate, and rolls along the short side to another transition region, so that the flexible member is attached to the front surface of the curved cover plate. The laminating speed can be adjusted in good time, and laminating bubbles are avoided.
In another embodiment, the arc pieces of the bonding platform roll from the transition areas of the long side and the short side of the curved cover plate to roll along the long side, and at the moment, the radius and the number of the arc pieces can be correspondingly adjusted according to the curvature change condition of the curved cover plate.
In another embodiment, the attaching platform comprises a plane part corresponding to the plane area of the curved cover plate besides the arc part, after the flexible part and the curved cover plate are aligned, the attaching platform extrudes the flexible part to enable the whole surface of the flexible part to be attached to the curved cover plate, rolling is not needed in the attaching process, and the stress is uniform.
By adopting the laminating device and the laminating method provided by the embodiment of the invention, the curvature radius of the curved cover plate is measured through the measuring system and the control system, and the curvature radius of the laminating platform is obtained according to the measured curvature radius, at the moment, the radius of the laminating platform is completely matched with the curvature-variable radius of the curved cover plate, so that the situation of over-pressure or too little downward pressure cannot occur in the laminating process, the occurrence of bad phenomena such as bubbles, black spots, broken pieces and the like caused by laminating is avoided, and the laminating yield is improved.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the invention, and it is intended that the present invention encompass the modifications and variations as well as those within the scope of the claims of the present invention and their equivalents.
Claims (6)
1. A bonding apparatus for bonding a curved cover plate to a flexible member, the curved portion of the curved cover plate having a varying radius of curvature, comprising:
the laminating platform comprises an arc part for laminating the flexible part and the curved cover plate, and the arc part is provided with a plurality of arc bodies with different radiuses;
the measuring system is used for measuring the curvature radius of the curved cover plate;
the control system is connected with the measuring system and used for adjusting the radius of the arc-shaped body according to the measured curvature radius;
the curved surface part of the curved surface cover plate is provided with at least two different curvature radiuses, and the corresponding arc-shaped bodies at least comprise a first arc-shaped body and a second arc-shaped body which are different in radius; the first arc-shaped body comprises a first air bag, the second arc-shaped body comprises a second air bag, and the control system controls the air input of the first air bag and the air input of the second air bag according to the measured radius of the curved surface so as to adjust the radius of the first arc-shaped body and the radius of the second arc-shaped body; the first arc-shaped body further comprises a first air inlet valve, the second arc-shaped body further comprises a second air inlet valve, and the first air bag and the second air bag are inflated or deflated through the first air inlet valve and the second air inlet valve so as to adjust the radius of the first arc-shaped body and the radius of the second arc-shaped body;
the radius R of the arc-shaped body satisfies the relation: r = R '-t, wherein R' is a radius of curvature of the curved cover plate, and t is a thickness of the flexible member.
2. The laminating device of claim 1 wherein the arcuate body is an elastomer.
3. The laminating device of claim 2 wherein the elastomer comprises silicone rubber.
4. The laminating device of claim 2, wherein the plurality of arcuate bodies are removably coupled to one another via a snap, a thread, or a magnet.
5. The laminating device of claim 1, wherein the flexible member comprises at least one of a flexible display screen, a polarizing layer, a heat sink layer, and an adhesive layer.
6. A method of attaching a curved cover plate to a flexible member using the attaching apparatus according to any one of claims 1 to 5, the curved portion of the curved cover plate having a varying radius of curvature, comprising:
providing a curved surface cover plate, and placing the surface to be bonded of the curved surface cover plate close to a bonding platform, wherein the bonding platform comprises an arc part which consists of a plurality of arc-shaped bodies with different radiuses;
measuring the curvature radius of the curved surface cover plate, and sending the measured curved surface radius data to a control system;
adjusting the number and radius of the arc-shaped bodies: adjusting the number of arc-shaped bodies according to the measured curved surface radius data, and inflating or deflating the arc-shaped bodies through an air inlet valve to adjust the radius of the arc-shaped bodies;
adsorbing the flexible component on the attaching platform;
and attaching the flexible component to the curved cover plate.
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| CN106564268B (en) * | 2016-11-08 | 2019-09-24 | 武汉华星光电技术有限公司 | Curved screen laminating apparatus and system |
| CN106597711B (en) * | 2017-01-19 | 2019-11-22 | 宁波视睿迪光电有限公司 | Curved screen laminating apparatus and method |
| CN110722786A (en) * | 2018-07-17 | 2020-01-24 | 南昌欧菲显示科技有限公司 | Bonding device and method |
| CN210925277U (en) * | 2019-12-31 | 2020-07-03 | 苏州曦寰凯科技有限公司 | Elastic device for laminating curved screen assembly and laminating tool |
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