Attaching apparatus and attaching method

Abstract

The application discloses a fitting device and a fitting method. The fitting device comprises a deformable profiling member. The profiling member comprises a first surface and a second surface arranged oppositely. The first surface is used for conforming to the cover plate, and the second surface is used for conforming to the screen body. The profiling member has a containing cavity. The containing cavity is used for carrying a liquid colloid. The profiling member can be removed when the colloid is solidified. The above scheme solves the problems that gas is easily generated and difficult to be discharged, the fitting degree between the curved cover plate and the screen body is poor, and glue overflow is easily generated in the prior art fitting process. The fitting degree of the cover plate and the screen body is increased, the probability of glue overflow of the display panel is reduced, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a fitting device and a fitting method. BACKGROUND

[0002] With the development of display technology, the number of display devices with curved display panels is increasing year by year. The curved display panel includes a cover plate with a curved surface and a flexible screen body.

[0003] In the preparation process of the existing curved display panel, the curved cover plate and the screen body are usually bonded by a semi-solid adhesive. However, the semi-solid adhesive has poor flowability, and gas is easily produced and difficult to discharge during the fitting process, resulting in poor fitting between the curved cover plate and the screen body. If a liquid adhesive is used, the problem of adhesive overflow is likely to occur during the fitting process, resulting in interference with other components and affecting product quality. SUMMARY

[0004] The technical problem solved by the present application is to provide a fitting device and a fitting method to increase the fitting degree of the cover plate and the screen body and reduce the probability of adhesive overflow of the display panel.

[0005] To solve the above technical problems, one technical solution adopted by the present application is to provide a fitting device, which includes a deformable profiling member, the profiling member includes a first surface and a second surface arranged oppositely, the first surface is used to conform to the cover plate, and the second surface is used to conform to the screen body; wherein the profiling member includes a containing cavity, the containing cavity is used to carry a liquid adhesive; and the profiling member can be removed when the adhesive is solidified.

[0006] To solve the above technical problems, another technical solution adopted by the present application is to provide a fitting method using the fitting device in any of the embodiments, the method includes: arranging the profiling member between the cover plate and the screen body; reducing the distance between the cover plate and the screen body to make the first surface of the profiling member conform to the cover plate and the second surface conform to the screen body, wherein the containing cavity of the profiling member is filled with the adhesive; solidifying the adhesive and removing the profiling member to make the cover plate and the screen body fit.

[0007] The beneficial effects of the present application are: different from the prior art, the fitting device and the fitting method of the present application set a deformable profiling piece between the cover plate and the screen body, as the gap between the screen body and the cover plate gradually narrows, the profiling piece is gradually flattened to produce deformation, the first surface and the second surface of the profiling piece gradually conform to the cover plate and the screen body respectively; and since the profiling piece contains a liquid gel in the accommodating cavity, the liquid gel has strong fluidity and can flow with the deformation of the profiling piece, always maintaining the filling of the profiling piece until the profiling piece completely fits the fitting surface profile of the screen body and the cover plate, so that the cover plate and the screen body have high fitting degree, and the gas in the gap between the two can be well discharged; and since the profiling piece outside the gel is removed when the gel is solidified, it ensures that the cover plate and the screen body can be firmly fitted; in addition, since the gel is always wrapped in the profiling piece before being solidified, the probability of overflow problem in the preparation process is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is a structural schematic diagram of an embodiment of the fitting device of the present application;

[0009] Figure 2 is a structural schematic diagram of an embodiment of the fitting device of the present application after fitting is completed;

[0010] Figure 3 is a structural schematic diagram of another embodiment of the fitting device of the present application before deformation occurs;

[0011] Figure 4 is a structural schematic diagram of another embodiment of the fitting device of the present application when deformation is completed;

[0012] Figure 5 is a structural schematic diagram of another embodiment of the fitting device of the present application when injecting gel;

[0013] Figure 6 is a flowchart of an embodiment of the fitting method of the present application. DETAILED DESCRIPTION

[0014] To make the purpose, technical scheme and effect of the present application clearer and more explicit, the present application will be further described in detail below with reference to the drawings and examples. Obviously, the described examples are only part of the examples of the present application, not all examples. Based on the examples in the present application, all other examples obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0015] Reference Figure 1 , Figure 1This is a schematic diagram of one embodiment of the bonding device of this application. The bonding device of this application is used to bond the cover plate 1 and the screen body 2 of a display panel, and is particularly suitable for bonding curved cover plates and flexible screen bodies in flexible display panels, such as display panels with curved surfaces on the left and right sides or curved surfaces on all four sides.

[0016] The bonding device includes a deformable contouring component 3, which includes a first surface 3a and a second surface 3b arranged opposite to each other. The first surface 3a is conformally fitted to the cover plate 1, and the second surface 3b is conformally fitted to the screen body 2. The contouring component 3 has a receiving cavity. Figure 1 (Not shown), the accommodating cavity is used to hold the liquid colloid 32; and the contouring part 3 can be removed when the colloid 32 solidifies. Specifically, the contouring part 3 can be formed by a deformable skin, wherein the first surface 3a and the second surface 3b are both outer surfaces of the skin of the contouring part 3, which are used to contact the cover plate 1 and the screen body 2 respectively; the accommodating cavity is formed by the skin and is a closed cavity located inside the contouring part 3, which can be used to contain the colloid 32.

[0017] See Figure 1 and Figure 2 , Figure 2 This is a schematic diagram of the structure after bonding according to one embodiment of the bonding device of this application. In this application, a deformable contouring member 3 is provided between the cover plate 1 and the screen body 2. As the gap between the screen body 2 and the cover plate 1 gradually narrows, the contouring member 3 is gradually flattened and deformed by the cover plate 1 and the screen body 2 on both sides. The first surface 3a of the contouring member 3 is bonded to the side of the cover plate 1 facing the screen body 2, and the second surface 3b is bonded to the side of the screen body 2 facing the cover plate 1. In this embodiment, the colloid 32 can be accommodated in the receiving cavity before the contouring member 3 deforms. Because the receiving cavity of the contouring member 3 ( Figure 2 (Not shown) The contents contain liquid colloid 32. Liquid colloid 32 has high fluidity and can flow with the deformation of the contoured part 3, always maintaining the filling of the contoured part 3 until the contoured part 3 completely conforms to the contour of the mating surface of the screen body 2 and the cover plate 1, such as... Figure 2 As shown, the cover plate 1 and the screen body 2 have a high degree of fit, and the gas in the gap between them can be well discharged; and since the contour part 3 outside the colloid 32 is removed when the colloid 32 is cured, it is ensured that the cover plate 1 and the screen body 2 can be firmly attached; in addition, since the colloid 32 is always wrapped in the contour part 3 before it is cured, the probability of glue overflow during the preparation process is greatly reduced.

[0018] Optionally, please continue reading Figure 1In the embodiment, the bonding device further comprises a profiling table 4 and a pressing assembly, the pressing assembly is used to drive the cover plate 1 and the screen body 2 to approach each other, and the profiling table 4 is used to support the screen body 2, and the screen body 2 is pressed to the profiling table 4 in the process that the cover plate 1 and the screen body 2 approach each other, so that the screen body 2 is conformed to the surface of the profiling table 4, and the screen body 2 that is adapted to the shape of the cover plate 1 is obtained. Optionally, the pressing assembly comprises a supporting table 5 used to support the profiling table 4 and a suction supporting table 6 used to drive the cover plate 1 to press down, the supporting table 5 is used to support the profiling table 4 and the screen body 2 on the profiling table 4, and the suction supporting table 6 is used to suck the cover plate 1 and drive the cover plate 1 to move down to approach the screen body 2. In the embodiment, the distance between the cover plate 1 and the screen body 2 is reduced by driving the cover plate 1 to approach the fixed screen body 2, and in other embodiments, the pressing assembly can also be used to drive the screen body 2 to approach the fixed cover plate 1, and the pressing assembly can also have other forms, which are not limited in the application.

[0019] Optionally, in other embodiments, the gel 32 can be injected into the profiling member 3 during the bonding process.

[0020] Specifically, referring to Figures 3-5 , wherein, Figure 3 is a structure schematic diagram of another embodiment of the bonding device of the application before deformation, Figure 4 is a structure schematic diagram of another embodiment of the bonding device of the application after deformation, Figure 5 is a structure schematic diagram of another embodiment of the bonding device of the application when injecting the gel. In the embodiment, as shown in Figure 3 , the accommodating cavity 31 is filled with gas; as shown in Figure 5 , the bonding device further comprises a gel injection mechanism 7, the gel injection mechanism 7 is used to provide the gel 32 into the accommodating cavity 31 after the first surface 3a is conformed to the cover plate 1 and the second surface 3b is conformed to the screen body 2.

[0021] As shown in Figure 3 , the accommodating cavity 31 of the profiling member 3 is first filled with gas, that is, the profiling member 3 can be a gas bag before the gel 32 is injected; in the process that the cover plate 1 and the screen body 2 approach each other, the profiling member 3 is deformed, because the gas in the profiling member 3 has higher flowability than the liquid, the gas can flow along with the deformation of the profiling member 3, and the internal gas of the profiling member 3 generates a certain outward pressure on the profiling member 3 when the profiling member 3 is extruded, so that the profiling member 3 can be bonded with the cover plate 1 and the screen body 2 during the deformation process, in the process that the cover plate 1 is pressed down, the screen body 2 is pressed to the profiling table 4 by the profiling member 3, especially the screen body 2 on both sides is originally suspended on the curved surface of the profiling table 4, the profiling member 3 expands to both sides at the same time, bends the screen body 2, and makes the screen body 2 conform to the curved surface of the profiling table 4, so that the screen body 2 that is adapted to the shape of the cover plate 1 is obtained, finally, the first surface 3a and the second surface 3b of the profiling member 3 are fully bonded with the cover plate 1 and the screen body 2, as shown in Figure 4The gel is provided into the accommodating cavity 31 again, and specifically, as shown in Figure 5 The gel injection mechanism 7 can be a needle cylinder or the like, which injects the liquid gel 32 into the accommodating cavity 31 by needle injection. The gel injection mechanism 7 is configured to inject the gel 32 in such a way that the gel 32 is not prone to backflow. The flowability of the gel 32 ensures that the accommodating cavity 31 can be fully filled, i.e., the gap between the cover plate 1 and the screen body 2 can be fully filled, so that the cover plate 1 and the screen body 2 can be stably attached subsequently.

[0022] In other embodiments, the accommodating cavity 31 can first contain other media, such as other liquids that do not react with the gel 32, which is not limited in the present application.

[0023] Optionally, referring to Figure 5 , the attaching device further comprises an exhaust mechanism 8 configured to exhaust gas from the accommodating cavity 31 when the gel injection mechanism 7 provides the gel 32 into the accommodating cavity 31. The exhaust mechanism 8 exhausts gas at the same time when the gel injection mechanism 7 injects the gel 32. On the one hand, the exhaust mechanism 8 prevents the profiled piece from being deformed during the injection of the gel 32, so that the first surface 3a and the second surface 3b can always be fully attached to the cover plate 1 and the screen body 2. On the other hand, the exhaust mechanism 8 prevents the profiled piece from being broken due to excessive air pressure in the accommodating cavity 31 during the injection of the gel 32.

[0024] Optionally, referring to Figure 5 , the profiled piece further comprises a third surface 3c and a fourth surface 3d connected between the first surface 3a and the second surface 3b and oppositely arranged. The third surface 3c and the fourth surface 3d are respectively provided with a gel injection hole and an exhaust hole. The gel injection hole is connected to the gel injection mechanism 7, and the exhaust hole is connected to the exhaust mechanism 8. The gel injection mechanism 7 and the exhaust mechanism 8 are respectively located on both sides of the profiled piece, i.e., one side injects the gel, and the other side exhausts the gas, so as to avoid interference between the flow directions of the gel injection mechanism 7 and the exhaust mechanism 8, to ensure smooth exhaust and injection, and to improve the preparation efficiency. In order to further improve the preparation efficiency, a plurality of gel injection mechanisms can be arranged on the same side, and a plurality of exhaust mechanisms can be arranged on the other side, as long as the injection flow rate and the exhaust flow rate are consistent. It should be noted that the gel injection hole and the exhaust hole should be arranged after the profiled piece is deformed. On the one hand, the gas in the profiled piece is prevented from being exhausted in advance during the deformation process. On the other hand, the gel injection hole and the exhaust hole are prevented from being blocked by the cover plate 1 or the screen body 2 after being displaced during the deformation process, so as to ensure that the gel injection hole and the exhaust hole are exposed, and facilitate subsequent injection and exhaust.

[0025] Optionally, the exhaust mechanism 8 comprises a needle cylinder. Optionally, the needle cylinder comprises a cross-shaped needle. Further ensure the smooth exhaust.

[0026] Optionally, the first surface 3a and the second surface 3b both have adhesion, and the adhesion is less than the adhesion of the glue 32 after solidification. During the deformation of the profiling piece 3, the cover plate 1 and the screen body 2 are always bonded with the profiling piece 3, and the cover plate 1 is not easy to slide and displace during the pressing process, thereby ensuring the fitting accuracy and fitting effect. Specifically, the profiling piece 3 can be made of a polyester material with weak adhesion, that is, the material of the skin is a polyester material. On the one hand, the polyester material has adhesion without the need for an additional adhesive layer, and on the other hand, the adhesion is weak and does not affect the deformation of the profiling piece 3. In addition, the adhesion of the profiling piece 3 can be adjusted by adjusting the molecular weight of the polyester material.

[0027] Optionally, the glue 32 is optical glue, and the profiling piece 3 is made of a material that can be degraded by ultraviolet light or can be cross-linked with the glue 32 after solidification. Specifically, the profiling piece 3 is made of a polyester material containing an unsaturated carbon-carbon double bond, a hydroxyl group, or a carboxyl group, and the glue 32 is OCR transparent optical resin with good fluidity.

[0028] The profiling piece 3 can be eliminated in the following two ways: when the profiling piece 3 is made of a material that can be degraded by ultraviolet light, such as a polyester material containing an unsaturated carbon-carbon double bond, the profiling piece 3 is irradiated by ultraviolet light to degrade the profiling piece 3, so that the glue 32 in the profiling piece 3 directly contacts the cover plate 1 and the screen body 2, and at the same time, the transparent optical resin in the profiling piece 3 is solidified under ultraviolet irradiation to bond the cover plate 1 and the screen body 2; when the profiling piece 3 is made of a material that can be cross-linked with the glue after solidification, such as a polyester material containing a hydroxyl group or a carboxyl group, the profiling piece 3 is irradiated by ultraviolet light, and the profiling piece 3 is cross-linked and solidified with the glue 32 in the profiling piece 3 to bond the cover plate 1 and the screen body 2.

[0029] Referring to Figure 6 , Figure 6 is a flowchart of an embodiment of the fitting method of the present application. The fitting method of the fitting device of any of the above embodiments comprises the following steps:

[0030] Step S101: disposing the profiling piece 3 between the cover plate 1 and the screen body 2;

[0031] Step S102: reducing the distance between the cover plate 1 and the screen body 2, so that the first surface 3a of the profiling piece 3 conforms to the cover plate 1, and the second surface 3b conforms to the screen body 2, wherein the profiling piece 3 is filled with the glue 32 in the accommodating cavity;

[0032] Step S103: solidifying the glue 32, and removing the profiling piece 3, so that the cover plate 1 and the screen body 2 are fitted.

[0033] Referring to Figure 1 and Figure 2By setting a deformable contouring component 3, as the gap between the cover plate 1 and the screen body 2 gradually narrows, the contouring component 3 is gradually flattened and deformed by the cover plate 1 and the screen body 2 on both sides. The first surface 3a of the contouring component 3 is attached to the side of the cover plate 1 facing the screen body 2, and the second surface 3b is attached to the side of the screen body 2 facing the cover plate 1; due to the accommodating cavity of the contouring component 3 ( Figure 2 (Not shown) The contents contain liquid colloid 32. Liquid colloid 32 has high fluidity and can flow with the deformation of the contoured part 3, always maintaining the filling of the contoured part 3 until the contoured part 3 completely conforms to the contour of the mating surface of the screen body 2 and the cover plate 1, such as... Figure 2 As shown, the cover plate 1 and the screen body 2 have a high degree of fit, and the gas in the gap between them can be well discharged; and since the contour part 3 outside the colloid 32 is removed when the colloid 32 is cured, it is ensured that the cover plate 1 and the screen body 2 can be firmly attached; in addition, since the colloid 32 is always wrapped in the contour part 3 before it is cured, the probability of glue overflow during the preparation process is greatly reduced.

[0034] In step S101, the contouring component 3 is set between the cover plate 1 and the screen body 2. The cavity 31 of the contouring component 3 is filled with gas. By filling the cavity with gas, the contouring component 3 becomes an airbag. While the airbag is deforming, its upper and lower surfaces are always in contact with the lower surface of the cover plate 1 and the upper surface of the screen body 2, so that the first surface 3a and the second surface 3b are fully fitted with the cover plate 1 and the screen body 2.

[0035] Before step S103, which involves curing the colloid 32 and removing the contour piece 3, the process further includes supplying the colloid 32 into the accommodating cavity 31 and venting gas. The colloid 32 is injected while gas is vented to maintain the volume and shape of the contour piece 3.

[0036] Optionally, the volume of the adhesive 32 required for the contouring part 3 is consistent with the volume of the cavity 31 of the contouring part 3. This ensures that the volume and shape of the contouring part 3 remain unchanged before and after the adhesive 32 is provided after deformation, preventing the cover plate 1 from shifting or sliding, thus guaranteeing the accuracy and effectiveness of the fit between the cover plate 1 and the screen 2. Optionally, the volume of the cavity 31 can be calculated using a preset distance between the cover plate 1 and the screen 2, as well as the covering surface of the cover plate 1 or the screen 2. Therefore, when the cover plate 1 or the screen 2 is brought closer by the pressing component until the preset distance is reached, injecting the calculated volume of adhesive 32 into the cavity 31 ensures that both the cover plate 1 and the screen 2 are covered by the adhesive 32, ensuring effective fit between the cover plate 1 and the screen 2. Optionally, the distance that the cover plate 1 or the screen 2 moves due to the pressing assembly can be monitored by a thickness scanning device. That is, when the gap between the cover plate 1 and the screen 2 reaches a preset distance, the thickness scanning device will prompt that the pressing assembly stops running and the distance between the cover plate 1 and the screen 2 remains fixed.

[0037] Optionally, the step of solidifying the gel 32 and removing the profiling member 3 further comprises irradiating the profiling member 3 with ultraviolet light to degrade the profiling member 3 or to cross-link the profiling member 3 with the solidified gel 32. In particular, the profiling member 3 can be made of a material that is degradable by ultraviolet light or a material that is cross-linkable with the gel 32 under ultraviolet light irradiation, and the elimination of the profiling member 3 and the solidification of the gel 32 are simultaneously achieved by irradiating the profiling member 3 with ultraviolet light.

[0038] The above merely illustrates the embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An attaching device for attaching a screen body to a cover plate, characterized in that, The application relates to a conforming device. The conforming device comprises a deformable conforming piece, which comprises a first surface and a second surface arranged oppositely, the first surface is used for conforming to the cover plate, and the second surface is used for conforming to the screen body. The conforming piece has a containing cavity, which is used for carrying a liquid colloid; and the conforming piece can be removed when the colloid is solidified, the colloid is optical glue, the conforming piece is made of ultraviolet light degradation material or material capable of cross-linking with the colloid solidification, and the conforming piece can be degraded or the conforming piece can be cross-linked and solidified with the colloid when the conforming piece is irradiated by ultraviolet light.

2. The conforming device according to claim 1, wherein the containing cavity is filled with gas; and the conforming device further comprises an injection mechanism, which is used for providing the colloid into the containing cavity after the first surface conforms to the cover plate and the second surface conforms to the screen body.

3. The conforming device according to claim 2, wherein the conforming device further comprises an exhaust mechanism, which is used for exhausting the gas from the containing cavity when the injection mechanism provides the colloid into the containing cavity.

4. The conforming device according to claim 3, wherein the conforming piece further comprises a third surface and a fourth surface connected between the first surface and the second surface and arranged oppositely, the third surface and the fourth surface are respectively provided with an injection hole and an exhaust hole, the injection hole is connected with the injection mechanism, and the exhaust hole is connected with the exhaust mechanism.

5. The conforming device according to claim 3, wherein the exhaust mechanism comprises a needle cylinder.

6. The conforming device according to claim 5, wherein the needle cylinder comprises a cross-shaped needle head.

7. The conforming device according to claim 1, wherein the first surface and the second surface both have adhesion, and the adhesion is smaller than that of the colloid after solidification.

8. The conforming device according to claim 1, wherein the conforming piece is made of polyester material containing unsaturated carbon-carbon double bond, hydroxyl or carboxyl. The method comprises the following steps. A conforming piece is arranged between the cover plate and the screen body; The distance between the cover plate and the screen body is reduced, so that the first surface of the conforming piece conforms to the cover plate and the second surface conforms to the screen body, wherein the containing cavity of the conforming piece is filled with colloid; The colloid is solidified, and the conforming piece is removed, so that the cover plate and the screen body are conformed.

10. The conforming method according to claim 9, wherein the containing cavity of the conforming piece is filled with gas in the step of arranging the conforming piece between the cover plate and the screen body; and the method further comprises the steps of providing the colloid into the containing cavity and exhausting the gas before the step of solidifying the colloid and removing the conforming piece.

11. The conforming method according to claim 9, wherein the step of solidifying the colloid and removing the conforming piece further comprises the following steps: The conforming piece is irradiated by ultraviolet light, so that the conforming piece is degraded or cross-linked and solidified with the colloid. ​ ​ 9. A method of applying the conforming device of any one of claims 1-8, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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