KR102080103B1 - Separating method of display device - Google Patents

Abstract

The present invention relates to a separation method of a display device, which enables to safely separate an image forming module. Since the adhesive strength of a first adhesive and a second adhesive is reduced through cooling without a process of heating to a high temperature, an adhesive mixture for adhesion removal does not need to be added in the process of separating the image forming module and the tempered glass, or separating the image forming module and the bezel. In addition, when separating the image forming module and the bezel using a separation film, the image forming module is configured to be safely supported on a lower surface by vacuum pressure, so that the image forming module is not damaged during the separation process and can be safely separated.

Description

How to remove the display device {SEPARATING METHOD OF DISPLAY DEVICE}

The present invention relates to a method of detaching a display device, and more particularly, to a method of detaching a display device to safely detach an image forming module.

As the mobile industry develops, the usage of display devices mounted on mobile devices continues to increase. The display device is composed of a tempered glass that is in contact with the human hand to perform a variety of functions, an image forming module attached below it through an adhesive, and a bezel surrounding the edge of the image forming module. The image forming module displays an image, and is composed of a liquid crystal display (LCD), an organic light emitting diode (OLED), and the like.

Meanwhile, when the front glass is broken for various reasons during the use of the mobile device, the liquid crystal is usually broken, but in reality, the image forming module is not broken but the upper tempered glass is broken. Therefore, the broken liquid crystal repair work is actually replacing the front tempered glass, not the actual liquid crystal replacement. In addition, since the display device is recyclable, the display device may be separately separated in the process of disposing of the mobile device, and the expensive rare metal resources in the image forming module may be extracted or recycled in the domestic market, or in developing countries. By exporting and reselling to third countries, many techniques for reducing waste and recycling resources through recycling have been proposed.

In order to repair or recycle such a display device, first, the tempered glass and the image forming module must be separated, and then the image forming module and the bezel are separated. The process of separating the tempered glass and the image forming module is a method of removing the adhesive by heating the mixture to a high temperature and then adding a mixture for the adhesive.

However, this conventional technology has a problem that the process is complicated, damage to the image forming module occurs in the process of heating to a high temperature, the adhesive mixture mixture is pressed to the image forming module. In addition, the image forming module has a problem in that the image module is frequently damaged in the process of separating the image forming module and the bezel because it is weak to shock.

Domestic Patent Publication No. 10-1944670

An object of the present invention for solving the problems of the prior art as described above is to provide a separation method of the display device to enable the safe separation of the image forming module.

According to an aspect of the present invention, there is provided a method of separating tempered glass, an image forming module, and a bezel from a display device separated from a mobile device, the method comprising: preparing a display device; A cooling step of cooling the display device to cool the first adhesive between the tempered glass and the image forming module and the second adhesive between the image forming module and the bezel; A first separation step of separating the tempered glass and the image forming module by applying pressure to separate the tempered glass and the image forming module from each other; An insertion process in which the image forming module is inserted into a receiving groove of a receiving body; An arrangement process in which the accommodation body is disposed in the vacuum generator, and the accommodation hole formed in the lower surface of the accommodation groove in which the image forming module is seated is directed toward the vacuum hole formed in the vacuum generator; A vacuum pressure generating process of operating the vacuum generating unit to transmit a vacuum pressure applied to the vacuum hole to the receiving hole so that the image forming module is in close contact with the lower surface part; And a second separation process of separating the bezel from the image forming module in a state in which the image forming module is in close contact with the bottom surface of the image forming module.

In addition, the cooling process provides a method of separating the display apparatus, wherein the display apparatus is cooled at a temperature of −190 ° C. to −160 ° C. for 30 seconds to 2 minutes in a cooling apparatus.

In addition, in the insertion process, the inner circumference of the receiving groove provides a separation method of the display device, characterized in that formed in close contact with the outer circumference of the image forming module.

In addition, the second separation process: a first step of separating the one side of the image forming module and one side of the bezel through a separation film of a flexible material between one side of the image forming module and one side of the bezel is penetrated ; And a second step of separating the image forming module and the entire bezel while the separation film is moved in a direction between the other side of the image forming module and the other side of the bezel. .

In addition, in the insertion process, when the image shape module is inserted into the receiving groove, the lower side of the bezel is provided so as to be exposed to the upper portion of the receiving groove provides a method of separating the display device.

In addition, in the first step, the separation film is formed in an elongated shape along the longitudinal direction to penetrate between one side of the image forming module and one side of the bezel, one end of the separation film is formed so as to be sharp A method of separating a display device is provided.

In addition, in the second step, the separation film is moved to the left and right along the longitudinal direction provides a separation method of the display device, characterized in that moved in the direction between the other side of the image forming module and the other side of the bezel.

In addition, in the first step, the separation film is penetrated in a direction between one side of the image forming module and one side of the bezel in the bezel hole formed in the bezel, and in the second step, one side of the separation film is Located in the bezel hole, while the other side of the separation film penetrates between one side of the image forming module and one side of the bezel, by rotating the other side of the separation film with respect to one side of the separation film to form the image It provides a separation method of the display device, characterized in that for separating the module and the entire bezel.

In addition, in the first step, the bezel is a bezel plate formed in a plate shape to cover one surface of the image forming module located in the opposite direction of the receiving groove, and the image forming in the state bent at the edge of the bezel plate And a bezel frame protruding in the opposite direction of the module and the bezel hole penetrating through the bezel plate, wherein the separation film penetrates between the image forming module and the bezel plate in the bezel hole. And separating the bezel plate from the display device.

In the present invention, since the adhesive force of the first adhesive and the second adhesive is reduced through cooling without heating to a high temperature, the adhesive mixture mixture is separated in the process of separating the image forming module and the tempered glass or separating the image forming module and the bezel. There is no effect to put.

In addition, when separating between the image forming module and the bezel using the separation film, since the entire image forming module is configured to be securely supported on the lower surface portion by the vacuum pressure, the image forming module is not damaged during the separation process, the image forming The effect is that the module can be safely removed.

 In addition, the vacuum bezel is configured so that no vacuum pressure is generated during the vacuum pressure generation process, and the separation film has an effect of easily separating the bezel plate from the image forming module.

1 is a flowchart schematically illustrating a method of detaching a display device according to an exemplary embodiment of the present invention.
2 is a view schematically illustrating a cooling process included in a method of detaching a display device according to an exemplary embodiment of the present invention.
FIG. 3 is a view schematically illustrating a first separation process included in a method of separating a display device according to an exemplary embodiment of the present invention.
4 is a view schematically illustrating an insertion process included in a method of detaching a display device according to an exemplary embodiment of the present invention.
FIG. 5 is a view schematically illustrating a bottom surface of a receiving groove into which an image forming module is inserted through an insertion process provided in a method of separating a display apparatus according to an exemplary embodiment of the present invention.
6 is a view schematically illustrating an arrangement process included in a method of detaching a display device according to an exemplary embodiment of the present invention.
FIG. 7 is a view schematically illustrating a vacuum pressure generating process and a second separating process included in the method of separating the display apparatus according to the preferred embodiment of the present invention.
8 is a view schematically illustrating a separation film used in a second separation process provided in the separation method of the display apparatus according to the preferred embodiment of the present invention.
FIG. 9 is a view schematically illustrating a state in which an image forming module and a bezel are separated by rotating a separating film in a second separating process provided in a separating method of a display device according to an exemplary embodiment of the present invention.

Hereinafter, a method of detaching a display device according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flowchart schematically illustrating a method of detaching a display device according to an exemplary embodiment of the present invention.

Referring to FIG. 1, a method of separating a display device according to a preferred embodiment of the present invention separates the tempered glass 12, the image forming module 14, and the bezel 16 from the display device 10 separated from the mobile device. Method, the preparation process (S100), the cooling process (S110), the first separation process (S120), the insertion process (S130), the batch process (S140), the vacuum pressure generating process (S150) and the second separation process (S160).

The preparation process (S100) prepares the display device 10, and the display device 10 includes a tempered glass 12, an image forming module 14, and a bezel 16, and is separated from the mobile device. The mobile device may be configured as, for example, a smartphone that requires disassembly for repair or recycling. The smartphone is composed of a display device 10, a main board and a lower case, and the main board and the lower case are removed in advance, and only the display device 10 is prepared.

Preparation process (S100) The following process will be described with reference to FIGS.

2 is a view schematically illustrating a cooling process included in a method of detaching a display device according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the cooling process S110 cools the display apparatus 10 using the cooling apparatus 100. The cooling device 100 includes a cooling main body 110 having an insertion groove 112 formed thereon, and a cooling cover 120 for opening and closing the insertion groove 112. When the display device 10 is inserted into the insertion groove 112, the cooling cover 120 is covered and cooled at a temperature of −190 ° C. to −160 ° C. for 30 seconds to 2 minutes. Preferably, the mixture is cooled to cryogenic temperatures of -180 ° C to -170 ° C for 1 minute. The first adhesive between the tempered glass 12 and the image forming module 14 and the second adhesive between the image forming module 14 and the bezel 16 are cooled, so that the resistance values of the first adhesive and the second adhesive are reduced. 0 becomes The first adhesive and the second adhesive may be composed of a conventional optical clean adhesive (OCA) or the like.

FIG. 3 is a view schematically illustrating a first separation process included in a method of separating a display device according to an exemplary embodiment of the present invention.

Referring to FIG. 3, in the first separation process S120, after the display device 10 is removed from the cooling device 100, the tempered glass 12 and the image forming module 14 are pressed to move away from each other. 12) and the image forming module (14). Between the tempered glass 12 and the image forming module 14 was bonded by a first adhesive, but the first adhesive was cooled by the above-described cooling process (S110), the operator by hand the image and the tempered glass 12 If a little pressure is applied after holding the forming module 14, the gap between the tempered glass 12 and the image forming module 14 is easily dropped. In addition, the tempered glass 12 and the image forming module 14 may be separated using a tool such as a conventional gripping device (not shown) having a tong shape or a sharply formed driver, in addition to the hand.

On the other hand, the image forming module 14 and the bezel 16 are still coupled. The image forming module 14 is formed in, for example, a substantially rectangular parallelepiped shape, and the bezel 16 is formed in a plate shape to cover one surface of the image forming module 14 and the bezel plate 16b. A bezel frame 16a integrally formed to be bent in the opposite direction of the image forming module 14 to the edge and a bezel hole 16c penetrated through the bezel plate 16b. The center of one surface of the image forming module 14 is exposed to the outside by the bezel hole 16c.

4 is a view schematically illustrating an insertion process included in a method of detaching a display device according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the insertion process (S130) is such that the image forming module 14 and the bezel 16 are inserted into the receiving body 200. The accommodating body 200 may be formed of flexible silicone, synthetic resin, or the like, and may be individually formed according to the size of the image forming module 14. The receiving groove 210 is concave formed on the upper side of the receiving body 200, the image forming module 14 is inserted into the receiving groove (210). And when the image forming module 14 is inserted into the receiving groove 210, the outer circumference of the image forming module 14 is in close contact with the inner circumference of the receiving groove 210, the lower side of the bezel frame 16a is the receiving groove ( 210 may be positioned to be exposed to the outside.

FIG. 5 is a view schematically illustrating a bottom surface of a receiving groove into which an image forming module is inserted through an insertion process provided in a method of separating a display apparatus according to an exemplary embodiment of the present invention.

4 and 5, when the image forming module 14 is inserted into the receiving groove 210 through the insertion process S130, the image forming module 14 is disposed on the lower surface 212 of the receiving groove 210. Since the whole is seated, the image forming module 14 is firmly supported by the lower surface portion 212. In addition, the outer periphery of the image forming module 14 is in close contact with the inner periphery of the receiving groove 210, the image forming module 14 inserted into the receiving groove 210 is not shaken or moved out of position by an external impact. Do not. To this end, the receiving body 200 is preferably made to fit the model name of the display device 10 to be customized. And the receiving body 200 is formed of a material having elasticity, such as synthetic rubber, silicon to securely support the image forming module (14).

On the other hand, the lower surface portion 212 is formed with a plurality of receiving holes 212a.

6 is a view schematically illustrating an arrangement process included in a method of detaching a display device according to an exemplary embodiment of the present invention.

Referring to FIG. 6, in the arrangement process S140, the accommodation main body 200 is disposed in the vacuum generating unit 300, and the accommodation hole 212a formed in the lower surface 212 of the accommodation groove 210 generates a vacuum. It is positioned to face the vacuum hole 312 formed in the portion (300).

The vacuum generating unit 300 is formed in a substantially hexahedral shape, the seating portion 310 protrudes from the upper side thereof, and the receiving body 200 is seated on the seating portion 310. In this case, a plurality of vacuum holes 312 are formed in the seating part 310, and the receiving holes 212a and the vacuum holes 312 are positioned to face each other. The vacuum generator 300 is connected to a compressor, an air pump, and the like, and is configured to apply a vacuum pressure to the vacuum hole 312 when the vacuum generator 300 is operated.

 FIG. 7 is a view schematically illustrating a vacuum pressure generating process and a second separating process included in the method for separating a display device according to an exemplary embodiment of the present invention, and FIG. 8 is a view illustrating a preferred embodiment of the present invention. FIG. 3 is a view schematically illustrating a separation film used in a second separation process included in a separation method of a display device.

7 and 8, in the vacuum pressure generating process S150, the vacuum generating unit 300 is operated to transfer the vacuum pressure applied to the vacuum hole 312 to the receiving hole 212a of the receiving body 200. Be sure to Then, a vacuum pressure is formed in the lower surface portion 212 of the accommodation groove 210 in which the accommodation hole 212a is formed, and the image forming module 14 is in close contact with the lower surface portion 212. At this time, since the vacuum pressure is not applied to the bezel frame 16a that does not directly face the receiving hole 212a, a slight gap is generated between the bezel frame 16a and the inner circumference of the receiving groove 210.

Subsequently, the second separation process S160 separates the image forming module 14 and the bezel 16 from each other using the separation film 400. At this time, the lower surface portion 212 of the receiving groove 210 is configured to still apply a vacuum pressure, the lower surface portion 212 and the image forming module 14 is still in close contact with each other. The second separation process S160 will be described in detail with reference to FIG. 9.

On the other hand, the separation film 400 is formed of a flexible and thin film material, it is formed in a long shape along the longitudinal direction to penetrate between one side of the image forming module 14 and one side of the bezel 16. In addition, one end of the separation film 400 in the longitudinal direction may be provided with a sharp portion 410 which is sharply formed to easily penetrate between the image forming module 14 and the bezel 16.

FIG. 9 is a view schematically illustrating a state in which an image forming module and a bezel are separated by rotating a separating film in a second separating process provided in a separating method of a display device according to an exemplary embodiment of the present invention.

8 and 9, in the second separation process S160, first, one side and the bezel of the image forming module 14 are formed in the bezel hole 16c in which the separation film 400 is formed at the center of the bezel 16. It penetrates in the direction between one side of (16). In more detail, the separation film 400 is positioned to penetrate the image forming module 14 and the bezel plate 16b in the bezel hole 16c. At this time, since the separation film 400 is formed of a flexible material and the sharp part 410 is formed so that the end is sharp, the separation film 400 is easily bent while repeatedly applying a little pressure to the image forming module ( 14) and bezel plate 16b. When the separation film 400 passes between one side of the image forming module 14 and one side of the bezel plate 16b, one side of the image forming module 14 and one side of the bezel 16 are separated.

Thereafter, one side of the separation film 400 is positioned in the bezel hole 16c, and the other side of the separation film 400 penetrates between one side of the image forming module 14 and one side of the bezel 16. With one side of the film 400 as the axis P, the other side of the separation film 400 is rotated by 360 °. Then, the separation film 400 is rotated once to separate the image forming module 14 and the entire bezel 16. At this time, when the separation film 400 is rotated while moving the separation film 400 from side to side in the longitudinal direction, the separation film 400 can separate the image forming module 14 and the bezel 16 more easily. have.

That is, the second adhesive is configured to cool in the above-described cooling process (S110), but the bezel 16 is still attached to one surface of the image forming module 14, and thus the image forming module 14 and If the bezel 16 is forcibly separated, the image forming module 14 may be damaged. Accordingly, after the image forming module 14 is positioned to be securely supported by the receiving groove 210 of the receiving body 200, the image forming module 14 and the bezel 16 are separated safely using the separating film 400. It is to be possible.

As such, the present invention reduces the adhesive strength of the first adhesive and the second adhesive through cooling without heating to a high temperature, so that the image forming module 14 and the tempered glass 12 are separated or the image forming module 14 is separated. In the process of separating the bezel 16 there is an effect that do not need to add a mixture for the adhesive.

In addition, when separating between the image forming module 14 and the bezel 16 using the separation film 400, since the image forming module 14 is configured to be securely supported on the lower surface portion 212 by the vacuum pressure, Since the image forming module 14 is not damaged during the separation process, the image forming module 14 may be safely separated.

 In addition, the bezel frame 16a is positioned so as to be exposed to the upper portion of the receiving groove 210, so that the vacuum pressure is not generated in the bezel frame 16a in the vacuum pressure generating process (S150), the separation film 400 The effect can be easily separated between the image forming module 14 and the bezel plate 16b.

Although the present invention has been described in detail in the above embodiments, it is obvious that the present invention is not limited thereto, and it is obvious to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention. If the technical scope falls within the scope of the claims, the technical spirit should also be regarded as belonging to the present invention.

10: display device
12: tempered glass 14: image forming module
16: Bezel 16a: Bezel Frame
16b: bezel plate 16c: bezel hole
100: cooling device 110: cooling body
112: insertion groove 120: cooling cover
200: receiving body 210: receiving groove
212: lower surface portion 212a: accommodation hole
300: vacuum generating unit 310: seating part
312: vacuum hole 400: separation film
410: Sharp

Claims (9)

In the method of separating the tempered glass, the image forming module and the bezel from the display device separated from the mobile device,
Preparing a display device;
A cooling step of cooling the display device to cool the first adhesive between the tempered glass and the image forming module and the second adhesive between the image forming module and the bezel;
A first separation step of separating the tempered glass and the image forming module by applying pressure to move the tempered glass and the image forming module apart from each other;
An insertion process in which the image forming module is inserted into a receiving groove of a receiving body;
An arrangement process in which the accommodation body is disposed in the vacuum generator, and the accommodation hole formed in the lower surface of the accommodation groove in which the image forming module is seated is directed toward the vacuum hole formed in the vacuum generator;
A vacuum pressure generating process of operating the vacuum generating unit to transmit a vacuum pressure applied to the vacuum hole to the receiving hole so that the image forming module is in close contact with the lower surface part; And
And a second separating process of separating the bezel from the image forming module while the image forming module is held in close contact with the bottom surface of the image forming module.
The method of claim 1,
In the cooling process, the display device is cooled in a cooling apparatus at a temperature of -190 ° C to -160 ° C for 30 seconds to 2 minutes.
The method of claim 1,
In the inserting process, the inner circumference of the receiving groove is formed to be in close contact with the outer circumference of the image forming module.
The method of claim 1,
The second separation process is:
A first step of separating the one side of the image forming module and one side of the bezel through a separation film made of a flexible material between one side of the image forming module and one side of the bezel; And
And a second step of separating the image forming module and the entire bezel while the separation film is moved in a direction between the other side of the image forming module and the other side of the bezel.
The method of claim 4, wherein
In the insertion process,
When the image shape module is inserted into the receiving groove, the lower side of the bezel is positioned so as to be exposed to the upper portion of the receiving groove.
The method of claim 4, wherein
In the first step, the separation film is formed in an elongated shape along the longitudinal direction to penetrate between one side of the image forming module and one side of the bezel, wherein one end of the separation film is formed to be sharp. How to remove the display device.
The method of claim 4, wherein
In the second step, the separation film is moved to the left and right along the longitudinal direction while the separation method of the display device, characterized in that moved in the direction between the other side of the image forming module and the other side of the bezel.
The method of claim 4, wherein
In the first step, the separation film is penetrated in a direction between one side of the image forming module and one side of the bezel in the bezel hole formed in the bezel,
In the second step, one side of the separation film is positioned in the bezel hole, while the other side of the separation film is passed through one side of the image forming module and one side of the bezel, the axis of one side of the separation film And rotating the other side of the separation film to separate the image forming module and the entire bezel.
The method of claim 8,
In the first step,
The bezel is formed in a bezel plate formed in a plate shape so as to cover one surface of the image forming module positioned in the opposite direction of the receiving groove, protruded in the opposite direction of the image forming module bent at the edge of the bezel plate A bezel frame and the bezel hole formed through the bezel plate;
And the separation film separates the image forming module and the bezel plate while passing between the image forming module and the bezel plate in the bezel hole.

Images