Device and method for attaching curved glass to screen

Abstract

The invention provides a curved glass and screen fitting device which comprises a supporting part, a pickup device, a vacuum device and a gas supply device, a supporting surface is arranged above the supporting part, the supporting part is provided with a plurality of gas pipelines arranged at intervals in the fitting direction, and the vacuum device and the gas supply device are both connected with the gas pipelines. Limiting plates are arranged on the periphery of the supporting part respectively, a fixing face with the curvature the same as that of the curved glass is arranged below the picking device, and the curvature of the fixing face is larger than that of the supporting face. The fixed surface is rotated, the curved glass and the screen are gradually pressed and attached to the limiting plate on the other side from the limiting plate on one side in the attaching direction, and the vacuum device keeps pumping away air in the air pipeline located on the side, not attached to the pressing position of the curved glass and the screen, of the vacuum device; the gas supply device supplies gas to the gas pipeline located on the side where the curved glass and the screen are attached to each other. Bubbles generated after the curved glass is attached to the screen can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of bonding curved glass to a screen, and in particular to a device and method for bonding curved glass to a screen. Background Art

[0002] In some electronic products, a curved screen structure is used, and the curved screen structure includes a flat screen and curved glass. The curved glass needs to be glued to the screen through an adhesive layer. In this regard, CN105128409A discloses a bonding jig and bonding method for a curved glass cover plate and a flat display screen. Bubbles are easily generated during bonding of the device. Summary of the invention

[0003] Therefore, it is necessary for the present invention to provide a device and method for bonding curved glass to a screen, which can reduce bubbles after the curved glass and the screen are bonded.

[0004] The present invention provides a device for bonding curved glass to a screen, the device comprising a support portion, a pick-up device, a vacuum device and an air supply device, the support portion having a support surface on the top, the support surface being used to support the screen, the support portion having a plurality of gas pipelines spaced apart in a bonding direction, the vacuum device and the air supply device being connected to the gas pipeline, limiting plates being respectively provided around the support portion, the limiting plates being higher than the support surface, the pick-up device having a fixing surface having the same curvature as the curved glass below, the fixing surface being used to fix the curved glass, the curvature of the fixing surface being greater than the curvature of the support surface, when the curved glass is bonded to the screen, the fixing surface is rotated and the curved glass and the screen are gradually pressed and bonded from the limiting plate on one side along the bonding direction to the limiting plate on the other side, wherein the vacuum device keeps extracting air from the gas pipeline on the side where the curved glass and the screen are not bonded at the pressing position, and the air supply device supplies air to the gas pipeline on the side where the curved glass and the screen are bonded at the pressing position.

[0005] The present invention provides a method for bonding curved glass to a screen, using the device for bonding curved glass to a screen, the method comprising:

[0006] Disposing an adhesive layer on the upper surface of the screen;

[0007] Pick up the curved glass on the fixed surface by the picking device;

[0008] placing the screen on the support with the adhesive layer facing upward;

[0009] Turning on the vacuum device to fix the screen on the supporting surface;

[0010] Make the curved glass face the screen;

[0011] The fixing surface is rotated and the curved glass and the screen are gradually pressed and fitted together from the limiting plate on one side along the fitting direction toward the limiting plate on the other side. During the fitting process, the vacuum device keeps extracting the air from the gas duct on the side where the curved glass and the screen are pressed but not fitted, and the air supply device supplies air to the gas duct on the side where the curved glass and the screen are pressed but not fitted.

[0012] The device for bonding curved glass to screen provided by the present invention adopts the curvature of the fixed surface and the curvature of the supporting surface. Before bonding begins, the screen is placed in a limiting plate and positioned around the limiting plate. Then, the air in the gas pipeline is evacuated by a vacuum device, so that the screen is pre-bent after being adsorbed and fixed on the fixed surface. When the curved glass and the screen are bonded, the fixed surface is moved and leaned against the supporting surface. The fixed surface is rotated and the curved glass and the screen are gradually pressed and bonded from one limiting plate on one side along the bonding direction to the other limiting plate on the other side. In this way, bubbles are discharged from one side. During the bonding process, the vacuum device keeps evacuating the air between the curved glass and the screen. The air in the gas duct on the unbonded side of the screen pressing position can keep the screen adsorbed and fixed on the supporting surface, while a small chamber is formed between the bonded part of the screen and the supporting surface and the limiting plate. The air supply device supplies air to the gas duct on the bonded side of the curved glass and the screen pressing position, which will form high pressure in the small chamber. On the one hand, it is beneficial for the screen to leave the supporting surface along with the curved glass, and on the other hand, the air pressure in the small chamber will further keep the bonded part of the screen stably and not loosely bonded to the curved glass, thereby preventing the screen from generating bubbles again due to a tiny gap between it and the bonded part of the curved glass due to the recovery trend. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a schematic diagram of the bonding process of the present invention. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] See also Figure 1 and Figure 2As shown, a specific embodiment of the present invention provides a device for bonding a curved glass 100 to a screen 200, the device comprising a support portion 10, a pickup device 20, a vacuum device 30 and an air supply device 40, the support portion 10 having a support surface 11 on the top, the support surface 11 being used to support the screen 200, the support portion 10 having a plurality of gas pipelines 12 spaced apart in a bonding direction, the vacuum device 30 and the air supply device 40 being connected to the gas pipeline 12, limiting plates 50 being respectively provided around the support portion 10, the limiting plates 50 being higher than the support surface 11, the pickup device 20 having a fixing surface 21 having the same curvature as the curved glass 100 on the bottom, the The fixing surface 21 is used to fix the curved glass 100, and the curvature of the fixing surface 21 is greater than the curvature of the supporting surface 11. When the curved glass 100 is attached to the screen 200, the fixing surface 21 is rotated and the curved glass 100 and the screen 200 are gradually pressed and attached from the limiting plate 50 on one side along the bonding direction to the limiting plate 50 on the other side, wherein the vacuum device 30 keeps extracting the air from the gas pipe 12 on the side where the curved glass 100 and the screen 200 are pressed and not attached, and the air supply device 40 supplies air to the gas pipe 12 on the side where the curved glass 100 and the screen 200 are pressed and attached.

[0017] The device for bonding the curved glass 100 and the screen 200 provided by the present invention adopts the curvature of the fixing surface 21 and the curvature of the supporting surface 11. Before bonding, the screen 200 is placed in the limiting plate 50 and positioned around the limiting plate 50. Then, the air in the gas pipeline 12 is evacuated by the vacuum device 30, so that the screen 200 is pre-bent after being adsorbed and fixed on the fixing surface 21. When the curved glass 100 and the screen 200 are bonded, the fixing surface 21 is moved and leaned against the supporting surface 11. The fixing surface 21 is rotated and the curved glass 100 and the screen 200 are gradually pressed and bonded from one side of the limiting plate 50 to the other side along the bonding direction. In this way, bubbles are discharged from one side. During the bonding process, the vacuum device 30 keeps evacuating the air on the curved glass. The air in the gas duct 12 on the unbonded side of the curved glass 100 and the screen 200 can keep the screen 200 adsorbed and fixed on the support surface 11, and a small chamber X is formed between the bonded part of the screen 200 and the support surface 11 and the limiting plate 50. The air supply device 40 supplies air to the gas duct 12 on the bonded side of the curved glass 100 and the screen 200, which will form a high pressure in the small chamber X. On the one hand, it is beneficial for the screen 200 to leave the support surface 11 along with the curved glass 100. On the other hand, the air pressure in the small chamber X will further keep the bonded part of the screen 200 stably and tightly bonded to the curved glass 100, thereby avoiding the generation of tiny gaps between the bonded parts of the screen 200 and the curved glass 100 and the generation of bubbles again.

[0018] The present invention provides a method for bonding a curved glass 100 to a screen 200, using the device for bonding the curved glass 100 to the screen 200, the method comprising:

[0019] S101 : Disposing an adhesive layer 300 on the upper surface of the screen 200 .

[0020] S102 : Pick up the curved glass 100 on the fixing surface 21 by the picking device 20 .

[0021] S103: placing the screen 200 on the support portion 10 with the adhesive layer 300 facing upward.

[0022] S104 : Turn on the vacuum device 30 to fix the screen 200 on the support surface 11 .

[0023] S105 : making the curved glass 100 face the screen 200 .

[0024] S106: Rotate the fixing surface 21 and gradually press the curved glass 100 and the screen 200 from the limiting plate 50 on one side along the bonding direction toward the limiting plate 50 on the other side to fit them together. During the bonding process, the vacuum device 30 keeps extracting the air from the gas duct 12 on the side where the curved glass 100 and the screen 200 are pressed and not fitted together, and the air supply device 40 supplies air to the gas duct 12 on the side where the curved glass 100 and the screen 200 are pressed and fitted together.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for bonding curved glass to a screen, characterized in that: The device includes a support portion, a picking device, a vacuum device and an air supply device. The support portion has a support surface on the top, and the support surface is used to support the screen. The support portion has a plurality of gas pipelines spaced apart in the bonding direction. The vacuum device and the air supply device are both connected to the gas pipeline. Limiting plates are respectively provided around the support portion, and the limiting plates are higher than the supporting surface. The picking device has a fixing surface with the same curvature as the curved glass below, and the fixing surface is used to fix the curved glass. The curvature of the fixing surface is greater than the curvature of the supporting surface. When the curved glass is attached to the screen, the fixing surface is rotated and the curved glass and the screen are gradually pressed and attached from the limiting plate on one side along the bonding direction to the limiting plate on the other side, wherein the vacuum device keeps extracting the air from the gas pipeline on the side where the curved glass and the screen are pressed but not attached, and the air supply device supplies air to the gas pipeline on the side where the curved glass and the screen are pressed but attached.

2. A method for bonding curved glass to a screen, characterized in that: Using the device for bonding curved glass to a screen as claimed in claim 1, the method comprises: Disposing an adhesive layer on the upper surface of the screen; Pick up the curved glass on the fixed surface by the picking device; placing the screen on the support with the adhesive layer facing upward; Turning on the vacuum device to fix the screen on the supporting surface; Make the curved glass face the screen; The fixing surface is rotated and the curved glass and the screen are gradually pressed and fitted together from the limiting plate on one side along the fitting direction toward the limiting plate on the other side. During the fitting process, the vacuum device keeps extracting the air from the gas duct on the side where the curved glass and the screen are pressed but not fitted, and the air supply device supplies air to the gas duct on the side where the curved glass and the screen are pressed but not fitted.

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