CN111590995A

CN111590995A - Laminating device

Info

Publication number: CN111590995A
Application number: CN202010418595.8A
Authority: CN
Inventors: 贾玉虎
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-08-28

Abstract

An exemplary embodiment of the present application discloses a bonding apparatus, including: pressure regulating part and deformation part, wherein: the pressure regulating part is connected with the deformation part to form a cavity for containing a pressure regulating medium; the pressure regulating part is used for changing the pressure of a pressure regulating medium in the cavity so as to increase the pressure in the cavity to enable the deformation part to be arranged in the flexible screen on the deformation part to apply pressure, and then the flexible screen is attached to the curved cover plate on the flexible screen in an overlapped mode.

Description

Laminating device

Technical Field

The present application relates to drive technology, and relates to, but is not limited to, a fitting device.

Background

In the related art, when the bottom of the curved screen is continuously pressed in the process of attaching the curved screen, the pressure borne by the flat area on the front surface is the largest, and then, from the starting point of bending, the downward pressure is continuously weakened, and the pressure on the bottommost surface is the smallest. When the pressure can not reach a certain value, the viscosity of the internal adhesive tape can not be activated, and the module falling phenomenon is easily caused.

Disclosure of Invention

In view of the above, an exemplary embodiment of the present application provides a bonding apparatus to solve at least one problem in the related art.

The technical scheme of an exemplary embodiment of the present application is realized as follows:

an exemplary embodiment of the present application provides a laminating device for attaching a flexible screen to an inner surface of a curved cover plate, the device including:

pressure regulating part and deformation part, wherein:

the pressure regulating part is connected with the deformation part to form a cavity for containing a pressure regulating medium;

the pressure regulating part is used for changing the pressure of a pressure regulating medium in the cavity so as to increase the pressure in the cavity to enable the deformation part to be arranged in the flexible screen on the deformation part to apply pressure, and then the flexible screen is attached to the curved cover plate on the flexible screen in an overlapped mode.

In the above apparatus, the deformation portion includes: at least one convex region and at least one planar region;

along with the pressure change of the pressure regulating medium in the cavity, the deformation generated by the convex surface area is larger than the deformation generated by the plane area.

In the above device, there is at least one convex area, and each convex area is arranged on the side wall matched with the planar area;

the at least one convex area forms a side of the cylinder or a portion of the side of the cylinder with an axis perpendicular to the planar area.

In the above device, the flexible screen and the curved cover plate are sequentially stacked on the deformation portion.

In the above apparatus, the pressure regulating medium comprises a gaseous pressure regulating medium or a liquid pressure regulating medium;

the convex area and the plane area are made of deformation materials, wherein the deformation materials comprise: a plastically deformable material or an elastically deformable material.

In the above apparatus, the pressure regulating section includes:

the accommodating body is used for accommodating the pressure regulating medium; one end of the accommodating body is connected with the deformation part;

the movable part is connected with the containing body in a sealing mode and is connected with the containing body in a sliding mode, and the movable part can move in the axial direction of the containing body to adjust the pressure of the pressure adjusting medium.

In the above device, the movable member includes a movable member and a pushing member connected to the movable member; the periphery of the movable piece is hermetically connected with the inner wall of the accommodating body;

the pushing piece is used for pushing the movable piece to move along the axial direction of the accommodating body.

In the above device, the movable member includes a slide bar, and at least one first projection located on a peripheral surface of the slide bar and near one end of the deformation portion;

correspondingly, at least one first slide way is arranged on the inner wall of the accommodating body along the axial direction of the accommodating body;

the first bulge is embedded into the first slide way, and when the first bulge slides in the first slide way, the pressure of the pressure regulating medium changes.

In the above apparatus, the pressure regulating section includes:

a containing body; the pressure regulating medium is used for accommodating the pressure regulating medium;

and the valve port is arranged on the accommodating body and used for injecting the pressure regulating medium into the accommodating body.

In the above apparatus, the pressure regulating section is further configured to: and changing the pressure regulating medium in the cavity so as to enable the deformation part to be far away from the flexible screen by reducing the pressure in the cavity.

An exemplary embodiment of the present application provides a bonding apparatus, including: pressure regulating part and deformation part, wherein: the pressure regulating part is connected with the deformation part to form a cavity for containing a pressure regulating medium; therefore, the pressure regulating medium is injected into the cavity, so that the pressure of the cavity can be changed; then, through setting up the pressure regulating part for the pressure of the pressure regulating medium in the change cavity to make the deformation part exert pressure to the flexible screen of arranging in on the deformation part through the pressure that increases in the cavity, make then flexible screen with superpose in the laminating of curved surface apron on the flexible screen. Like this, after one side of deformation part is overlapped in flexible screen and curved surface apron, through the pressure that changes the cavity, make deformation part atress extrusion flexible screen, because whole deformation part atress is even to make the pressure that flexible screen and curved surface apron born also even, and then make the laminating effect of flexible screen and curved surface apron better.

Drawings

FIG. 1 is a schematic diagram of a bonding apparatus according to an exemplary embodiment of the present disclosure;

FIG. 2A is a schematic cross-sectional view of a bonding apparatus according to an exemplary embodiment of the present application;

FIG. 2B is a schematic view of another exemplary embodiment of a bonding apparatus;

FIG. 2C is a schematic view of another exemplary embodiment of a bonding apparatus;

FIG. 2D is a schematic view of another exemplary embodiment of a bonding apparatus;

FIG. 2E is a schematic view of another exemplary embodiment of a bonding apparatus;

FIG. 2F is a schematic view of another exemplary embodiment of a bonding apparatus;

FIG. 2G is a schematic view of another exemplary embodiment of a bonding apparatus;

FIG. 2H is a schematic three-dimensional structure diagram of a bonding apparatus according to an exemplary embodiment of the present disclosure

FIG. 2I is a schematic view of another exemplary embodiment of a bonding apparatus;

FIG. 3 is a schematic diagram of a structure of a waterfall screen according to an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic diagram illustrating a structure of a silicone gel application device according to an exemplary embodiment of the present disclosure;

FIG. 5 is a schematic view of a bonding apparatus in a compressed state according to an exemplary embodiment of the present disclosure;

FIG. 6 is a force-bearing schematic view of a fit state according to an exemplary embodiment of the present disclosure;

FIG. 7 is a schematic diagram illustrating a structure of a curved screen engaging device according to an exemplary embodiment of the present disclosure;

FIG. 8 is a schematic view of another component structure of a curved screen engaging device according to an exemplary embodiment of the present application;

FIG. 9 is a schematic diagram of a component structure of a curved screen according to an exemplary embodiment of the present application;

FIG. 10 is a schematic view of another exemplary embodiment of a bonding apparatus;

FIG. 11A is a schematic view of another exemplary embodiment of a bonding apparatus according to the present disclosure;

fig. 11B is a schematic view of another structure of a bonding apparatus according to an exemplary embodiment of the present application.

Detailed Description

The technical solution in an exemplary embodiment of the present application will be clearly and completely described below with reference to the accompanying drawings in an exemplary embodiment of the present application.

An exemplary embodiment of the present application is directed to a laminating apparatus that may be applied to a device having a display screen, for example, a communication device having a curved screen.

Fig. 1 is a schematic structural diagram of a bonding apparatus according to an exemplary embodiment of the present application, and as shown in fig. 1, the apparatus 100 includes: a pressure regulating portion 101 and a deformation portion 102.

Here, the pressure regulating portion 101 and the deformation portion 102 are connected to form a cavity 105 for accommodating a pressure regulating medium, as shown in fig. 1. The pressure regulating part 101 may be rectangular, square or any other shape, and the pressure regulating part 101 may be made of silica gel material.

The flexible screen 103 and the curved cover plate 104 to be bonded are sequentially stacked on the deformation part 102.

Here, the flexible panel 103 and the curved cover 104 may be devices to be bonded, such as a liquid crystal panel and a cover.

And the pressure regulating part 101 is used for changing the pressure of a pressure regulating medium in the cavity so as to increase the pressure in the cavity to enable the deformation part to apply pressure to the flexible screen 103 arranged on the deformation part, and then the flexible screen 103 is attached to the curved cover plate 104 superposed on the flexible screen 103.

Here, the pressure regulating part is used for changing the pressure regulating medium in the cavity, so that the pressure in the cavity is increased to enable the deformation part to apply pressure to the flexible screen, and then the flexible screen is attached to the curved cover plate. The pressure regulating medium comprises any one of the following components: a gas or a liquid. Such as air, water or gasoline, etc.

In this application embodiment, deformation part 102 and pressure regulating part 101 fixed connection form a big cavity, and through the pressure that changes the pressure regulating medium in this cavity, exert pressure to this deformation part to make deformation part take place deformation, make whole deformation body atress even, thereby make the flexible screen of treating the laminating also even with the pressure that the curved surface apron bore, and then make the laminating effect of flexible screen and curved surface apron better.

In some embodiments of the present application, the deformation portion 102 includes: at least one convex region and at least one planar region.

Here, the convex surface region may further include two or more equal sub-regions (for example, four convex surface regions), and the curvature of the surface of the convex surface region before the pressure regulating medium in the cavity changes may be 0, that is, the convex surface region may be made planar in advance, but the deformation of the convex surface region is larger than that of the planar region as the pressure regulating medium in the cavity changes.

In some possible implementations, if the material of the planar area is the same as the material of the convex area, the thickness of the planar area is greater than the thickness of the convex area; alternatively, the coefficient of elasticity of the convex region is greater than the coefficient of elasticity of the planar region. For example, the plane area is made of an elastic material A, the convex area is made of an elastic material B, and the elastic coefficient of the elastic material A is larger than that of the elastic material B, so that on one hand, when the pressure of the cavity is increased, the convex area deforms earlier than the plane area, and under the same pressure, the deformation of the convex area is larger than that of the straight plate, so that the whole flexible screen and the curved cover plate are attached more tightly. On the other hand, the deformation speed of the plane area is smaller than that of the convex area, excessive extrusion on the areas of the flexible screen and the curved cover plate which are overlapped on the plane area is avoided, and the areas of the flexible screen and the curved cover plate which are overlapped on the convex area can be well attached together.

The surface of the convex surface area can be a curved surface or a flat surface, but when the pressure in the cavity is increased, the deformation of the convex surface area is larger than that of the flat surface area, namely, the convex surface area can be extruded to the flexible screen more quickly.

In some embodiments, the at least one convex region forms a side of the cylinder or a portion of the side of the cylinder having an axis perpendicular to the planar region.

In some possible implementations, in case the convex area is provided as a convex area, the one convex area is provided on the side wall matching the planar area, the whole convex area is considered as a curved surface, i.e. the one convex area can be understood as a part of the side of the cylinder, the one convex area is provided on one side of the planar area, thereby forming the deformed portion matching the shape of the flexible screen.

In other embodiments, where the convex area is configured as a convex area, the convex area is configured as a column and is disposed on the sidewall matching the planar area, forming a side of the column with an axis perpendicular to the planar area, for example, the entire convex area shaped as fig. 2H is disposed on one side of the planar area, thereby forming the deformation portion matching the shape of the flexible screen.

In some possible implementations, when there are an even number of convex regions, as shown in fig. 2H, each two convex regions disposed with respect to the planar region have the same shape and can be connected so that the even number of convex regions form a cylinder with an axis perpendicular to the planar region. For example, the number of the convex regions is four (i.e., the convex regions 22 to 25 in fig. 2H), each two convex regions have the same shape, and each convex region is disposed on the sidewall matching the planar region to form a column 21 with an axis perpendicular to the planar region; that is, each of the four convex regions forms a portion of a side of the cylinder, and the four convex regions are joined together to form the cylinder. For example, the first convex region 22 is the same shape as the second convex region 23 and is connected to both sides of the planar region 26, and the third convex region 24 is the same shape as the fourth convex region 25 and is connected to both sides of the planar region 26 perpendicular to the side connecting the first convex region 22 and the second convex region 23.

Or the convex surface area comprises two convex surface areas which can be directly connected to form a columnar body; for example, in fig. 2H, the first convex region 22 and the fourth convex region 25 are regarded as one convex region connected together, the second convex region 23 and the third convex region 24 are regarded as another convex region connected together, and the two convex regions with the same shape are oppositely arranged, so that the two convex regions are oppositely arranged on two sides of the planar region 26, thereby forming the shape shown in fig. 2H.

In some embodiments, when the convex regions are two or more convex regions, the shapes of the convex regions may also be different, for example, the convex regions include a first convex region and a second convex region, and the inclination of the first convex region is greater than the inclination of the second convex region, so that although the shapes of the two convex regions are different, the two convex regions are oppositely arranged to form a curved surface, and may still form a deformation portion matching the shape of the flexible screen with the planar region, and the deformation portion can still apply pressure to the flexible screen placed on the deformation portion by increasing the pressure in the cavity, and then the flexible screen is attached to the curved cover plate stacked on the flexible screen.

Here, the planar area may be shaped as a flat plate, and the first convex area and the second convex area are respectively located at both sides of the planar area. As shown in fig. 2A, fig. 2A is a schematic cross-sectional view of a bonding apparatus according to an exemplary embodiment of the present application, and as can be seen from fig. 2A, a first convex region 201, a planar region 203, and a second convex region 202 are connected in sequence.

Here, the first convex region 201 and the second convex region 202 are respectively located at both sides of the planar region, for example, the first convex region 201 and the second convex region 202 are connected at both sides of the planar region in a symmetrical manner.

In the present embodiment, the first and second convex regions 22, 23, 24 and 25 are at least the same material and the same thickness. Two convex regions of the same shape (e.g., third convex region 24 and fourth convex region 25, or third convex region 22 and fourth convex region 23) may also be two curved surfaces of the same shape. For example, the curved surfaces of the third convex region 24 and the fourth convex region 25 have the same shape as the curved surface of the flexible screen, or the curvature of the surface of the convex region is greater than or equal to the curvature of the curved surface of the flexible screen, so that when the pressure in the cavity increases, the convex region can be pressed against the flexible screen in a short time, and the flexible screen and the curved cover plate can be quickly attached.

Along with the pressure intensity change of the pressure regulating medium in the cavity, the deformation generated by the plane area connecting the two convex areas is smaller than the deformation generated by the convex areas at the two sides (for example, the deformation generated by the plane area 26 is smaller than the deformation generated by the first convex area 22 and the second convex area 23 at the two sides), and the deformation generated by the first convex area 22 is the same as the deformation generated by the second convex area 23, so that the stress of different areas of the flexible screen superposed on the first convex area 22 and the second convex area 23 is the same, the different areas of the flexible screen can be simultaneously extruded, the stress of the different areas of the flexible screen is uniform, and the joint effect of the flexible screen and the curved cover plate is further improved.

In this application embodiment, the surface shape of deformation part is the same with the surface shape of flexible screen, for example, the flexible screen is that both ends have two curved surfaces, two curved surfaces pass through the plane district and connect, so the deformation part is the same both sides have two curved surfaces, two curved surfaces pass through the plane district and connect, the curvature that the curved surface of deformation part was promptly is the same with the curvature of flexible screen, when the flexible screen was arranged in deformation part like this, the deformation part can be fine with the laminating of flexible screen, thereby when the pressure increase in the cavity, in order to exert pressure to the deformation part, the deformation part can be even exert pressure to the flexible screen, make the laminating that flexible screen and curved surface apron can be fine.

In a specific example, as shown in fig. 2B, the flexible screen includes a liquid crystal screen, and the curved cover plate includes a cover plate; the liquid crystal screen and the cover plate are sequentially stacked on the deformation part.

In some embodiments, as described below in conjunction with fig. 2A, the flexible screen includes a liquid crystal screen (e.g., an organic light emitting diode), the curved cover plate includes a cover plate (e.g., a glass cover plate), and the glass cover plate is disposed on the liquid crystal screen, the liquid crystal screen is stacked on a deformation portion, and the deformation portion includes: the curvature of the curved surface of the first convex region and the curvature of the curved surface of the second convex region are greater than or equal to the curvature of the curved surface of the glass cover plate.

The first convex region 221 and the second convex region 222 may be configured to deform when the pressure of the cavity is greater than the first pressure threshold value, so as to press the curved surface of the liquid crystal panel, so that the curved surface of the liquid crystal panel and the curved surface of the glass cover plate are attached.

In a specific example, the surface of the first convex region 221 has the same curvature as the surface 223 of the glass cover plate, and the surface of the second convex region 222 has the same curvature as the other curved surface 224 of the glass cover plate; the curved surface 225 of the liquid crystal screen of the curved surface 223 of the glass cover plate has the same shape, and the other curved surface 224 of the glass cover plate has the same shape as the other curved surface 226 of the liquid crystal screen; thus, when the glass cover plate is arranged on the outer side of the liquid crystal screen, the surfaces of the glass cover plate and the liquid crystal screen can be matched, and the glass cover plate and the liquid crystal screen are overlapped together in a matched mode and then are overlapped on the deformation part, and the deformation part can also be matched with the inner surface of the liquid crystal screen.

In some possible implementations, if the material of the planar area is the same as the material of the convex area, the thickness of the planar area is greater than the thickness of the convex area; for example, the planar area, the first convex area and the second convex area are made of silica gel materials, and the thickness of the planar area is set to be larger than that of the convex area, so that when the pressure of the cavity is increased, the deformation of the convex area is larger than that of the planar area, and the whole flexible screen and the curved cover plate can be well attached.

As shown in fig. 2B, the first convex region 221 and the second convex region 222 of the deformed portion are connected by a planar region 227, and the thickness of the planar region 227 is greater than that of the first convex region; therefore, the thickness of the plane area is set to be larger than that of the convex area, so that in the process of filling air into the cavity, the deformation of the convex area of the deformation part can completely fit with the liquid crystal screen with a large angle, and the pressure born by the liquid crystal screen in each direction is the same.

The flat area 227 may be configured to press the flat area of the liquid crystal panel when the pressure of the cavity is greater (e.g., greater than the first pressure threshold), so that the flat area of the liquid crystal panel is attached to the flat area of the glass cover plate. Thus, after the glass cover plate is nested to the outer side of the liquid crystal screen, the glass cover plate is nested on the deformation part, namely, the curved surface 225 of the liquid crystal screen is arranged on the first convex surface area 221, and the other curved surface 226 of the liquid crystal screen is arranged on the first convex surface area 222; the first convex surface region 221 and the second convex surface region 222 can deform along with the injection of the pressure regulating medium so as to extrude two curved surfaces of the liquid crystal screen; a plane area 228 connecting two curved surfaces of the liquid crystal screen is arranged on a plane area 227 connecting two convex areas and is kept adjacent to the two convex areas; the flat area 227 can be deformed with the injection of the pressure regulating medium to press the flat area of the liquid crystal panel covering one side of the deformed portion. Because the shapes of the curved surfaces at the two ends of the liquid crystal screen are the same as the shapes of the surfaces of the convex areas, the liquid crystal screen can be well nested on the convex areas, and the thickness of the plane area is greater than that of the convex areas; like this, under the condition that the pressure that changes the cavity carries out the pressure testing to deformation part, just can guarantee that the plane district and the convex surface district atress of whole deformation part are even, so when exerting pressure to deformation part, extrusion LCD screen that can be very even to make fine laminating of LCD screen and glass apron together, avoided local pressure too big to cause LCD screen internal line to break, perhaps pressure too little can't activate the laminating sticky tape.

In some embodiments, the voltage regulation section is further configured to: and changing the pressure regulating medium in the cavity so as to enable the deformation part to be far away from the flexible screen by reducing the pressure in the cavity. In some possible implementations, when the deformed portion is not deformed, a distance between a vertex of the first convex surface region and a vertex of the second convex surface region is smaller than a minimum distance between two symmetric curved surfaces in the liquid crystal panel. In this way, the maximum length of the deformation part which is not deformed is set to be smaller than the distance between two symmetrical end points of two symmetrical curved surfaces in the liquid crystal screen (namely the minimum distance between two curved surfaces of the liquid crystal screen), so that the deformation part can be easily placed on the inner side of the liquid crystal screen, and the liquid crystal screen cannot be scratched.

In a specific example, when the liquid crystal screen is placed on the deformation part, the planar area of the deformation part and the planar area of the liquid crystal screen can be in contact or not in contact; for example, when the maximum distance between the two convex surface regions is smaller than the minimum distance between the two curved surfaces of the liquid crystal screen, and the planar region of the deformation part is not in contact with the planar region of the liquid crystal screen, the deformation part is moved towards the liquid crystal screen so that the planar region of the deformation part is in contact with the planar region of the liquid crystal screen, and therefore when pressure is applied to the deformation part, the liquid crystal screen can be well extruded so that the liquid crystal screen is attached to the glass cover plate.

In some embodiments, the deformed portion is capable of returning from the deformed shape to the original shape as the pressure regulating medium is reduced.

The first convex surface area, the plane area and the second convex surface area which are sequentially connected can be instantly restored to the original shape along with the reduction of the pressure regulating medium when the pressure of the cavity is reduced to a certain value; alternatively, the first convex region, the planar region and the second convex region, which are connected in sequence, gradually return from the deformed shape to the original shape as the pressure of the cavity decreases. That is to say, after the flexible screen and the curved cover plate are attached to each other, the entire attachment device can be pulled out of the flexible screen, for example, the pressure of the cavity is adjusted to be equal to the external atmospheric pressure to reduce the pressure applied to the deformation portion, so that the deformation portion recovers the original shape, that is, the deformation portion is used for recovering the shape of the deformation portion to the original shape when the pressure of the cavity is smaller than the second pressure threshold value. Here, the original shape may be understood as a shape before the deformed portion is not deformed.

In the embodiment of the application, the edge of the attaching device, namely the convex surface area, is designed to be the thin-wall area, so that the attaching device deforms in the thin-wall area in the inflating process, the large-angle module is completely engaged, the pressure in all directions is the same, the phenomenon that the inner lines of the liquid crystal display are broken or the pressure is too small due to overlarge local pressure is avoided, the attaching adhesive tape cannot be activated, and the attaching device can be used for attaching various large-angle modules.

In some embodiments, the voltage regulating section may be implemented by various structures:

the first method is as follows: as shown in fig. 2C, fig. 2C is a schematic view of another composition structure of a pasting device according to an exemplary embodiment of the present application, and the following description is made with reference to fig. 1:

the voltage regulating section 101 includes: and a receiving body 231 for receiving the pressure regulating medium.

Here, the shape of the receiving body 231 may be a rectangular parallelepiped, a square, a cylinder, or the like.

A movable member 232 fitted to the receiving body, coupled to the receiving body, hermetically connected to the receiving body, and slidably connected to the receiving body, the movable member being movable in an axial direction of the receiving body to adjust a pressure of the pressure regulating medium; the axial direction of the receiving body is understood to be the direction in which the central axis of the receiving body is rotated, i.e. the same direction as the central axis of the receiving body. The shape of the movable part 232 is the same as the shape of the inner cavity of the accommodating body 231, and the size parameters of the movable part 232 and the accommodating body 231 are the same, wherein the size parameters can be any one of the parameters such as diameter, side length, perimeter, cross-sectional area, and the like. For example, when the movable member 232 is a cylinder, and the cavity inside the accommodating body 231 is also a cylinder, the size parameter may be a diameter.

The second method comprises the following steps: as shown in fig. 2D, fig. 2D is a schematic view of another composition structure of a bonding apparatus according to an exemplary embodiment of the present application, and the following description is made with reference to fig. 2D:

the voltage regulating section 101 includes: a receiving body 231 and a movable member 232.

The movable part 232 comprises a movable member 233 and a pushing member 234 connected to the movable member; the movable member 233 is hermetically connected to the inner wall of the accommodating body 231 around.

And a pushing member 234 for pushing the movable member to move in the axial direction of the container body.

In the embodiment of the present application, the movable member 233 is matched with the accommodating body 231, and the size parameter of the pushing member 234 may be smaller than or equal to that of the movable member 233. The movable member 233 may be attached to any position on the outer surface of the pushing member 234, wherein the outer surface of the pushing member 234 refers to the side of the pushing member 234 away from the deformation portion.

The movable member 233 and the pushing member 234 may be fixedly connected or movably connected, and when the movable member 233 and the pushing member 234 are movably connected, the movable member 233 and the pushing member 234 may be in a threaded connection, for example, a first thread (not shown) is provided inside the movable member 233, a second thread is provided on the surface of the pushing member 234, and the first thread and the second thread are matched, or the movable member 233 and the pushing member 234 may be in any connection manner, such as a snap connection.

The third method comprises the following steps: as shown in fig. 2E, fig. 2E is a schematic view of another composition structure of a pasting device according to an exemplary embodiment of the present application, and the following description is made with reference to fig. 2E:

The movable member 232 includes a sliding bar 241, and at least one first protrusion 242 located at one end of the peripheral surface of the sliding bar near the deformation portion;

at least one first slideway 243 is arranged on the inner wall of the accommodating body along the axial direction of the accommodating body;

here, the first protrusion 242 is matched with the first slide way 243, the first protrusion 242 is embedded in the first slide way 243, and when the first protrusion 242 slides in the first slide way 243, the pressure of the pressure regulating medium is changed. Like this, through applying thrust to slide bar 241, because compressed air holds the chamber, the cavity volume diminishes, and the volume of pressure regulating medium is unchangeable for the pressure increase of pressure regulating medium, thereby make thin wall district (being convex surface district) at first produce deformation, and thick wall district (being the plane district) because the wall is thicker, so can be less to the extrusion force of flexible screen, and then make flexible screen and curved surface apron reach the laminating effect.

In other embodiments, the manner that the thick-wall area extrudes the flexible screen may be that, in the process of increasing the pressure of the pressure regulating medium, the attaching device moves toward the flexible screen, so that the thick-wall area overlapped with the flexible screen extrudes the flexible screen, and the flexible screen and the curved cover plate are enabled to achieve the attaching effect.

In other embodiments, as shown in fig. 2I, the movable member 232 includes a sliding rod 291; at least one second slideway 292 is arranged on the surface of the sliding rod 291 along the axial direction of the sliding rod;

at least one second protrusion 293 is arranged on one end of the inner wall of the accommodating body, which is far away from the deformation part; the second protrusion 293 is embedded in the second slide channel 292, and when the second protrusion 293 slides in the second slide channel 292, the pressure of the pressure regulating medium changes. As shown in fig. 2I, the composition structure of the attaching device may be that the sliding rod and the accommodating body are fixed together in advance during the manufacturing process; it is also possible to assemble the applicator when it is desired to use it, for example by sliding a sliding rod into the housing from the side of the housing closer to the deformation. Therefore, the slide way is arranged on the slide rod, the bulge is arranged on the inner wall of the accommodating body, the pressure intensity in the cavity can be changed by applying thrust to the pushing piece, and the liquid crystal screen and the glass cover plate are uniformly extruded, so that the liquid crystal screen and the glass cover plate are attached together.

The method is as follows: as shown in fig. 2F, fig. 2F is a schematic view of another composition structure of a pasting device according to an exemplary embodiment of the present application, and the following description is made with reference to fig. 2F:

the voltage regulating section 101 includes: a receiving body 231 and a movable member 232. The movable part 232 comprises a movable member 233, a pushing member 234, and at least one third protrusion 251 located on the circumferential surface of the movable member 233 and near one end of the deformation portion;

at least one third slide way 252 is arranged on the inner wall of the accommodating body along the axial direction of the accommodating body;

here, the third protrusion 251 is matched with the third slide way 252, the third protrusion 251 is embedded in the third slide way 252, and when the third protrusion 251 slides in the third slide way 252, the pressure of the pressure regulating medium changes. Thus, the moving part 233 is pushed to move towards the direction close to the deformation part by the pushing part 234, the cavity volume is reduced and the quantity of the pressure regulating medium is unchanged due to the compressed air accommodating cavity, so that the pressure of the pressure regulating medium is increased, the thin-wall area (namely, the convex area) is firstly deformed, and the thick-wall area (namely, the plane area) is thicker, so that the extrusion force to the flexible screen is smaller, and the flexible screen and the curved cover plate are attached.

The fifth mode is as follows: as shown in fig. 2G, fig. 2G is a schematic view of another composition structure of a pasting device according to an exemplary embodiment of the present application, and the following description is made with reference to fig. 2G:

the voltage regulating section 101 includes:

the accommodating body 261; for accommodating the pressure regulating medium.

And a valve port 262 disposed on the container body for injecting the pressure-regulating medium into the container body. Here, the valve port 262 may be disposed at any position of the housing of the accommodating body, and the pressure in the cavity may be increased by injecting liquid or filling air into the cavity through the valve port 262, and the volume change of the cavity is small, and the amount of the pressure regulating medium is greatly increased, so that the pressure generated by the pressure regulating medium in the cavity is increased. For example, when the pressure is greater than 360 atmospheric pressures, the deformation part deforms to extrude the flexible screen, so that the flexible screen extrudes the curved cover plate.

In this application embodiment, inject air or liquid into the cavity through the pressure regulating valve, perhaps, exert thrust through the impeller to the movable part, make the promotion subtract along slide upward movement, in order to change the pressure of cavity, make the deformation part take place the deformation, thereby the extrusion is waited to laminate the device, like this, through changing the pressure in the cavity, extrude the deformation part, make whole deformation part atress even, thereby make the pressure that the flexible screen bore also even, and then make the laminating effect of flexible screen and curved surface apron better.

In the related art, with the rapid development of the mobile phone industry, the full-screen and waterfall screen are more and more favored by consumers. The bending angle of the waterfall screen is greater than 90 °, and the larger the angle is, the better the display effect of the waterfall screen is, the limit of the angle in the related art is 120 °, referring to fig. 3, fig. 3 is a schematic view of a composition structure of the waterfall screen according to an exemplary embodiment of the present application, the maximum bending angle of the waterfall screen 301 is 120 °, and the waterfall screen includes a glass cover plate 302 and an Organic Light-Emitting Diode 303 (OLED), that is, the maximum bending angle of the glass cover plate 302 is 120 °.

The large-angle module attaching device is also a curved surface area attached to the edge through extrusion deformation of two sides of the silica gel attaching device. The laminating device continuously exerts upward pressure after moving upwards, so that the profiling areas on the two sides of the silica gel laminating device are extruded outwards. Referring to fig. 4, fig. 4 is a schematic view of a composition structure of a silicone bonding apparatus according to an exemplary embodiment of the present disclosure, the bonding apparatus 401 is made of a silicone material, and the bonding apparatus 401 is moved upward and continuously applies upward pressure, so that profile areas on two sides of the bonding apparatus are extruded outward and deformed, and thereby the edge of the OLED 402 and the curved surface area of the glass cover plate 403 are bonded.

Fig. 5 is a schematic structural diagram of a bonding apparatus in a compressed state according to an exemplary embodiment of the present application, but such a bonding manner in fig. 5 may cause uneven stress on the entire bending region, firstly, when the bottom 501 continuously applies pressure, the pressure applied to the front flat region 502 is the largest, and secondly, from the bending start point 503, the downward pressure is continuously reduced, and the pressure applied to the bottommost surface 504 is the smallest. Fig. 6 is a schematic diagram of the stress condition of the bonding state according to an exemplary embodiment of the present disclosure, where when a pressure is applied to the bottom of the bonding apparatus, the maximum pressure applied to the top 601 is Fmax, and after the curved portion 602 of the bonding state deforms, a pressure F is generated_TYPAnd extruding the OLED so as to enable the OLED to be attached to the glass cover plate, wherein the minimum pressure borne by the lowest surface 603 of the OLED is Fmin, when the pressure cannot reach a certain value, the viscosity of the internal adhesive tape cannot be activated, and the module falling phenomenon is easily caused by module reliability test.

Based on this, an exemplary embodiment of the present application provides a curved screen attaching device, as shown in fig. 7, fig. 7 is a schematic view of a composition structure of the curved screen attaching device according to an exemplary embodiment of the present application, in the device, a lower portion is a gas chamber 701, which includes an inflation valve port 702, and an upper portion is a deformation portion, which is divided into a thick-wall area 703 (i.e., a straight plate) and a thin-wall area 704 (i.e., a jig, which may be made of rubber or latex); therefore, the jig is set to be a thin-wall area, the straight plate is set to be a thick-wall area, when the pressure intensity of the cavity is increased, the thin-wall area 704 is firstly deformed, and the thick-wall area 703 is thicker, so that the extrusion force on the liquid crystal screen is smaller, and therefore the phenomenon that the line in the liquid crystal screen is broken due to overlarge pressure is avoided. The glass cover 705 is nested on the outer side of the light emitting diode 706 (i.e. the liquid crystal screen), and the light emitting diode 706 is nested on the outer side of the deformation part.

Gas enters the gas cavity through the external air pressure pipeline, when the laminating device is molded through pre-inflation in the laminating process, the thin-wall regions are in an undeformed state, at this time, the distance S1 between the thin-wall regions on the two sides is smaller than the distance S1 between the curved surface 801 of the laminating device and the other curved surface 802 of the laminating device as shown in FIG. 8, for example, the distance S0 between the lowest end 901 of the curved surface of the glass cover plate 705 and the lowest end 902 of the other curved surface of the glass cover plate 705 as shown in FIG. 9, that is, under the condition that S1< S0, the whole laminating device is moved upwards to enable the thick-wall regions of the laminating device to be in contact with the OLED and continuously inflated, the thin-wall regions are automatically deformed, and the large-angle curved.

When the bonding device is completely matched with the OLED, air (corresponding to the full pressure of the normal module process) is continuously injected into the bonding device, the stress in each direction is equal at the moment, so that the OLED is completely bonded with the glass cover plate, the inflation amount can be adjusted according to different pressure values as required, and as shown in fig. 10, the gas can be inflated or extracted through the inflation valve port 1001 as required, so that the thin-wall area 704 is deformed. After the bonding is completed, the gas is pumped out through the inflation valve port 1001, and the bonding device 1000 recovers its shape, moves downward, and takes out the bonding device 1000.

In the embodiment of the application, the thin-wall area is designed at the edge of the laminating device, so that the thin-wall area deforms in the inflating process of the laminating device, the large-angle module is completely matched, the pressure in all directions is the same, the problem that the inner line of the liquid crystal display is disconnected or the pressure is too small due to overlarge local pressure, and the laminating adhesive tape cannot be activated is solved, and the laminating of various large-angle modules is realized.

In other embodiments, as shown in fig. 11A, fig. 11A is another schematic structural diagram of a bonding apparatus according to an exemplary embodiment of the present disclosure, in which the cavity 1111 is designed as an air accommodating cavity, two

sides

1112 and 1113 are slideways, the air accommodating cavity is compressed by applying a pushing force to the bottom side 1115, so that the thin-wall region 1114 is firstly deformed, and the thick-wall region 1116 has a relatively thick wall, so that the pressing force to the lcd panel is relatively small, thereby achieving the bonding effect between the lcd panel and the glass cover plate.

In another embodiment, as shown in fig. 11B, fig. 11B is a schematic diagram of another composition structure of a bonding apparatus according to an exemplary embodiment of the present application, in the apparatus 1211, a lower portion is a liquid accommodating chamber 1212 and includes a liquid valve port 1215, and an upper portion is a deformation portion and is divided into a thick-walled region 1213 and a thin-walled region 1214 (which may be made of rubber or latex), and liquid is filled into the liquid accommodating chamber 1212 through the liquid valve port 1215, so that the thick-walled region 1213 and the thin-walled region 1214 are stressed and deformed, thereby bonding a device to be bonded.

It should be noted that, as will be apparent to those skilled in the art, the formation method of the bonding apparatus and other structures and functions of the bonding apparatus in the embodiments of the present application are well known to those skilled in the art, and in order to reduce redundancy, detailed description of the embodiments of the present application is omitted.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a laminating device for with attached on the internal surface of curved surface apron of flexible screen, its characterized in that, the device includes:

pressure regulating part and deformation part, wherein:

the pressure regulating part is used for changing the pressure of a pressure regulating medium in the cavity, so that the pressure in the cavity is increased to enable the deformation part to be arranged on the deformation part, the flexible screen exerts pressure, and then the flexible screen is attached to the curved cover plate stacked on the flexible screen.

2. The laminating device of claim 1, wherein the deformation portion comprises: at least one convex region and at least one planar region;

3. The laminating device of claim 2, wherein the number of convex regions is at least one, and each convex region is provided on a side wall matching the planar region;

4. The laminating device of claim 1, wherein the liquid crystal panel and the cover plate are sequentially stacked on the deformation portion.

5. The laminating device of claim 1, wherein the pressure regulating medium comprises a gaseous pressure regulating medium or a liquid pressure regulating medium;

6. The laminating device of claim 1, wherein the pressure regulating portion comprises:

7. The laminating device of claim 6, wherein the movable member includes a movable member and a pusher member coupled to the movable member; the periphery of the movable piece is hermetically connected with the inner wall of the accommodating body;

8. The attaching device according to claim 6, wherein the movable member includes a slide bar, and at least one first projection provided on a peripheral surface of the slide bar near one end of the deformation portion;

9. The laminating device of claim 1, wherein the pressure regulating portion comprises:

10. The laminating device of any one of claims 1 to 9, wherein the pressure regulating portion is further configured to: and changing the pressure regulating medium in the cavity so as to enable the deformation part to be far away from the flexible screen by reducing the pressure in the cavity.