Adhesive force testing assembly

Abstract

The utility model discloses an adhesive force testing assembly, and the assembly comprises a supporting part which is used for placing a to-be-tested display product, and a display screen of the to-be-tested display product is bonded with a target part of the to-be-tested display product through a bonding layer; the monitoring part can monitor peeling of the bonding layer to a preset degree; the preset degree is the stripping degree that stripping exists but complete stripping is not achieved. In this way, the adhesive force testing efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of display finished products, and in particular to an adhesion testing assembly. Background Art

[0002] At present, the display screens of most display products need to be bonded to other components through an adhesive layer, and the adhesive strength of the adhesive layer directly affects the stability of the display screen. Among them, from the market feedback information of display products, it is found that more and more display products have the phenomenon of display screen falling off, which has a poor user experience.

[0003] Therefore, in order to improve user experience, it is necessary to test the adhesion of the adhesive layer during the display product development stage. Utility Model Content

[0004] The main technical problem solved by the present application is to provide an adhesion testing component that can improve the adhesion testing efficiency.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide an adhesion testing component, including: a support member, used to place the display product to be tested, the display screen of the display product to be tested is bonded to the target component of the display product to be tested through an adhesive layer; a monitoring member, the monitoring member can monitor the peeling of the adhesive layer to a preset degree; the preset degree is the peeling degree in which peeling exists but has not reached complete peeling.

[0006] The monitoring component includes at least one of the following: a light monitoring unit, which is used to monitor whether there is leakage light on the display screen of the display product to be tested; when there is leakage light on the display screen, determining whether the adhesive layer is peeled off; wherein the leakage area of ​​the leakage light is positively correlated with the degree of peeling of the adhesive layer; and a position monitoring unit, which is used to determine the position of the leakage light when there is leakage light on the display screen, and the leakage position of the leakage light is the peeling position of the adhesive layer.

[0007] Among them, the light monitoring unit is a color analyzer, and the position monitoring unit is an infrared thermal imager.

[0008] Among them, the supporting member includes a supporting part, a first connecting part and a second connecting part, wherein the first connecting part is connected to the supporting part and is used to fix the display product to be tested; the second connecting part is connected to the attached component and is used to set the monitoring component, and the attached component is the supporting part or the first connecting part.

[0009] Wherein, the support member also includes a first driving member, wherein the first connecting part is connected to the supporting part through the first driving member, and the first driving member is used to drive the first connecting part to rotate relative to the supporting part, thereby adjusting the inclination angle of the display product to be tested; and / or, the first connecting part includes a first support arm and a wall mount, and the two ends of the first support arm are respectively connected to the supporting part and the wall mount, and the wall mount is used to fix the display product to be tested, wherein, when the attached component is the first connecting part, the second connecting part is connected to the first support arm; and / or, the supporting part includes a base and a bracket, one end of the bracket is connected to the base, and the other end of the bracket is connected to the first connecting part.

[0010] Wherein, the second connecting part comprises a slide rail, and the monitoring component is arranged on the slide rail and can move on the slide rail.

[0011] Among them, the second connecting part also includes a second support arm, and the two ends of the second support arm are respectively connected to the slide rail and the attachment component; and / or, the second connecting part also includes a second driving member, and the second driving member is used to drive the monitoring member to move on the slide rail; and / or, the slide rail is annular, and the projection position of the display product to be tested on the plane where the slide rail is located is located inside the ring.

[0012] The test assembly further includes a plurality of load elements, each of which is arranged on a display screen of the display product to be tested.

[0013] Among them, each load-bearing member includes a third connecting part and a weight, one end of the third connecting part is connected to the display screen, and the other end is connected to the weight-bearing object; and / or, the setting positions of the multiple load-bearing members on the display screen are determined based on the size information of the display screen; and / or, the multiple load-bearing members are arranged on the display screen in a row and column matrix.

[0014] Among them, multiple load members are arranged in a row and column matrix on the display screen, the shortest distance between the row closest to the edge of the display screen and the edge of the display screen is a first ratio of the height of the display screen, and the shortest distance between the column closest to the edge of the display screen and the edge of the display screen is a second ratio of the length of the display screen; the total mass of the loads on the multiple load members is not less than the mass of the display product to be tested.

[0015] Among them, the target component is the back panel of the display product to be tested, and the support member is connected to the back panel; the display product to be tested is a display product without a frame; and / or the adhesive in the adhesive layer is a screen sealing adhesive.

[0016] In the above scheme, the monitoring element can detect the peeling of the adhesive layer to a preset degree, wherein the preset degree is the peeling degree where peeling exists but has not reached complete peeling. It can be seen that the present application can detect the peeling of the adhesive layer before the adhesive layer is completely peeled off. Compared with the method of detecting the peeling of the adhesive layer after the adhesive layer is completely peeled off, the above method of the present application can identify the peeling of the adhesive layer earlier, so it can improve the test efficiency of the adhesive force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of an adhesion testing assembly provided by the present application;

[0018] Figure 2 It is an enlarged schematic diagram of a part of the structure of an embodiment of an adhesion testing assembly provided by the present application;

[0019] Figure 3 It is a front view of an embodiment of an adhesion testing assembly provided by the present application;

[0020] Figure 4 It is a schematic diagram of the distribution of multiple load elements on a display screen provided in this application. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and effect of the present application clearer and more specific, the present application is further described in detail below with reference to the accompanying drawings and examples.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0023] It should be noted that display products include display screens, which are generally bonded to other components of display products by adhesives. For finished display products, especially those that need to be wall-mounted or have no support, the strength of the adhesive layer directly affects the stability of the display screen during its use in the market. If the adhesive strength of the adhesive layer does not meet the requirements, the display screen will be affected by its own gravity during use, causing the outermost display screen of the display product to slowly separate from the inner components of the display product until it completely falls off.

[0024] It should also be noted that, unless otherwise specified, the adhesion test in this article refers to the reliability test of the adhesive layer.

[0025] In addition, considering that the display screen will generally fall off from the display product together with the adhesive layer when it falls off, that is, the degree of falling off of the display screen in this application is the degree of peeling of the adhesive layer. Therefore, this application can monitor the peeling of the adhesive layer by detecting the falling off of the display screen, so as to realize the test of the adhesion of the adhesive layer (reliability test).

[0026] Among them, even if there is a small area of ​​peeling of the adhesive layer, it can also indicate that the adhesive layer is ineffective. However, the size of display products is generally large, and the display screen falls off slowly, that is, at the beginning, only a small area of ​​the display screen falls off, and gradually, the area of ​​the display screen falls off will become larger and larger until it falls off completely. If the peeling of the adhesive layer can only be detected when the display screen is completely fallen off, the reliability test of the adhesive layer will be longer. If the peeling of the adhesive layer (failure) can be detected when the degree (area) of the display screen falling off is small, the reliability test time required for the adhesive layer can be greatly shortened.

[0027] The adhesion test assembly provided in the present application is capable of detecting a very small degree of peeling of the adhesive layer, thereby further reducing the duration of the reliability test required for the adhesive layer, thereby greatly improving the efficiency of the reliability test of the adhesive layer.

[0028] See also Figure 1 , Figure 1 1 is a schematic diagram of the structure of an embodiment of an adhesion test assembly provided by the present application. The adhesion test assembly in this embodiment is used to perform reliability testing on the adhesive layer of a display product to be tested, wherein the display product to be tested in this embodiment also includes a display screen, and the display screen is bonded to the target component of the display product to be tested through the adhesive layer.

[0029] like Figure 1 As shown, the adhesion test assembly 100 includes a support member 10 and a monitoring member 20. The support member 10 is used to place the display product to be tested, and the monitoring member 20 is used to monitor whether the adhesive layer is peeled off. The monitoring member 20 provided in this embodiment can monitor the peeling of the adhesive layer to a preset degree (peeling exists but has not reached the degree of complete peeling). That is, the monitoring member in this embodiment can monitor the peeling of the adhesive layer before the display screen is completely detached.

[0030] It can be understood that compared with the method of detecting the peeling of the adhesive layer only after the adhesive layer is completely peeled off, the above method of the present application can identify the peeling of the adhesive layer earlier, so it can improve the testing efficiency of the adhesive force.

[0031] The adhesive layer in this embodiment is composed of an adhesive, and the adhesive in the adhesive layer is a screen sealing adhesive, so that the display screen and the target component are bonded by the screen sealing adhesive.

[0032] In one embodiment, the target component of the display product to be tested is a backplane of the display product, that is, the display screen of the display product to be tested is bonded to the backplane via an adhesive layer.

[0033] In one embodiment, the display product to be tested is a display product without a frame, and the adhesion testing assembly provided in the present application can perform reliability testing on the adhesive layer in the frameless display product, wherein, under the influence of gravity, the adhesive layer of the display product to be tested without a frame is more easily peeled off (more likely to fail) than the adhesive layer of the display product to be tested with a frame, when the adhesion of the adhesive layer is the same.

[0034] In some embodiments, the monitoring component 20 includes at least one of a light detection unit and a position monitoring unit.

[0035] Optionally, the monitoring component 20 includes a light detection unit, which is used to monitor whether there is leakage light in the display screen of the display product to be tested. When the light monitoring unit detects that there is leakage light in the display screen, it can be determined that the adhesive layer is peeled off, and the leakage area of ​​the leakage light is positively correlated with the degree of peeling of the adhesive layer.

[0036] It should be noted that when the display screen of the display product to be tested is well bonded to the target component and the bonding layer is not failed, the light monitoring unit cannot detect leakage light; when the bonding layer is peeled off from the target component, the light from the back panel of the display product to be tested will leak out and be monitored by the light monitoring unit. Therefore, when the light monitoring unit detects leakage light from the display screen, it indicates that the bonding layer is peeled off. The larger the leakage area of ​​the leakage light, the larger the peeling area of ​​the bonding layer and the higher the degree of peeling.

[0037] The light monitoring unit in this embodiment may be any detection unit that can detect light, and may be, but is not limited to, a color analyzer, and may also be some sensors that detect light.

[0038] It can be understood that since the above-mentioned light detection unit determines whether there is peeling of the adhesive layer by detecting leakage light, wherein no light will be detected when there is no peeling of the adhesive layer. As long as light is detected, it means that there is peeling of the adhesive layer. Therefore, this embodiment can detect point peeling of a smaller degree. As long as there is point peeling, it means that the adhesion of the adhesive layer has failed. Therefore, this embodiment can identify point peeling (point failure) earlier, thereby improving the test efficiency of the adhesion of the adhesive layer.

[0039] Optionally, the monitoring component 20 may also include a position monitoring unit, wherein the position monitoring unit is used to determine the position of leakage light when there is leakage light on the display screen, and the leakage position of the leakage light is the peeling position of the adhesive layer, so that the failure point of the adhesive layer can be determined by counting the peeling positions of most display products, and then in the subsequent product development process, the adhesion of the failure point can be strengthened.

[0040] In an optional implementation, the position monitoring unit is an infrared thermal imager. The backlight module of the display product to be tested generates heat when working. The heat distribution can be observed through the infrared thermal imager to infer the position of the backlight point (leakage light).

[0041] Of course, in other embodiments, the position monitoring unit can also be an image acquisition device. When the light detection unit detects leakage light, it records the detection time, finds the picture collected at the corresponding time point through time, and detects the picture to determine the position of the leakage light.

[0042] Please continue reading Figure 1 In one embodiment, the support member 10 includes a support portion 11, a first connection portion 12, and a second connection portion 13. The first connection portion 12 is connected to the support portion 11 and is used to fix the display product to be tested. The second connection portion 13 is connected to an attachment component and is used to set the monitoring component 20, wherein the attachment component is the support portion 11 or the first connection portion 12.

[0043] In summary, in this embodiment, the first connection portion 12 in the support member 10 is used to fix the display product to be tested, the second connection portion 13 is connected to the support portion 11 or to the first connection portion 12 , and the second connection portion 13 is used to set the monitoring member 20 .

[0044] See also Figure 2 , Figure 2 1 is an enlarged schematic diagram of a part of the structure of an embodiment of an adhesion test assembly provided by the present application. Figure 2 As shown, the first connecting portion 12 includes a first arm 15 and a wall bracket 16, please refer to Figure 1 and Figure 2 The two ends of the first arm 15 are respectively connected to the support portion 11 and the wall mount 16, wherein the wall mount 16 is used to fix the display product to be tested.

[0045] In this embodiment, when the attached component is the first connecting portion 12 , the second connecting portion 13 is connected to the first supporting arm 15 .

[0046] It should be noted that currently most users will mount display products on the wall when using them. Therefore, the above-mentioned method of setting up the wall mount can simulate the actual usage scenario of the display product by the user. Therefore, the test results obtained by the above-mentioned method of setting up the wall mount are closer to the reliability results in the actual usage scenario.

[0047] Please continue reading Figure 1In order to stabilize the support part and stably fix the display product to be tested, in one embodiment, the support part 11 may include a base 18 and a bracket 19, wherein one end of the bracket 19 is connected to the base 18, and the other end is connected to the first connection part 12. Of course, in other embodiments, the base may not be provided, and the bracket 19 may be directly provided on the wall.

[0048] Furthermore, in order to stably fix the display product to be tested, in one embodiment, a plurality of fixed spaces 17 are provided on the wall mount 16 , and the display product to be tested is fixed on the wall mount 16 via the plurality of fixed spaces 17 .

[0049] Please refer to Figure 1 and Figure 2 Considering that the inclination angles of the display product to be tested are different, the corresponding gravity is different. Therefore, in order to be able to perform reliability testing on the adhesive layer at multiple angles or appropriate inclination angles, it is also necessary to adjust the angle of the display product to be tested. Therefore, in one embodiment, the support member 10 provided also includes a first driving member 14 (for example, a driving motor). In this embodiment, the first connecting portion 12 is connected to the supporting portion 11 through the first driving member 14, and the first driving member 14 can drive the first connecting portion 12 to rotate relative to the supporting portion 11, thereby adjusting the inclination angle of the display product to be tested.

[0050] In one embodiment, when the monitoring range of the monitoring element 20 is large enough, such as one monitoring element can monitor the entire display screen, only one monitoring element 20 may be provided.

[0051] In another embodiment, when the monitoring range of the monitoring member 20 is less than the size of the entire display screen, multiple monitoring members 20 may be provided, and different monitoring members 20 are used to monitor peeling at different positions of the display screen.

[0052] Of course, in other embodiments, when the monitoring range of the monitoring element 20 is less than the entire display screen size, please continue to refer to Figure 2 In order to enable a monitoring component 20 to monitor the entire display screen, a second connecting portion 13 may include a slide rail 131, on which the monitoring component 20 is disposed, and on which the monitoring component 20 is movable, so that when the monitoring component 20 moves on the slide rail 131, it can monitor whether there is peeling at different positions in the display screen.

[0053] In an optional embodiment, the second connecting portion 13 further includes a second arm 132 , and two ends of the second arm 132 are respectively connected to the slide rail 131 and the attachment component (the supporting portion 11 or the first connecting portion 12 ).

[0054] In one embodiment, in order to automatically control the monitoring component 20 to move on the slide rail 131 , the second connection portion 13 may also include a second driving component 133 (eg, a driving motor) to drive the monitoring component 20 to move on the slide rail 131 via the second driving component 133 .

[0055] Optionally, the slide rail 131 is annular, and the display product to be tested can be within the plane where the slide rail 131 is located, or the projection position of the display product to be tested on the plane where the slide rail 131 is located, is located within the ring, so that the monitoring device 20 can collect information at various positions on the display screen during the entire process of moving on the annular slide rail 131.

[0056] It is understandable that the greater the downward force on the display screen, the easier it is for the adhesive layer to peel off. Therefore, in one embodiment, in order to speed up the test and reduce the test time, multiple load members can be provided, wherein each load member is provided on the display screen of the display product to be tested.

[0057] In one specific embodiment, see Figure 3 , Figure 3 1 is a front view of an embodiment of an adhesion test assembly provided by the present application. Figure 3 As shown, each load member 30 includes a third connection portion 31 and a weight 32. One end of the third connection portion 31 is connected to the display screen, and the other end is connected to the weight 32. The weight 32 is an object with a certain weight, which can be but not limited to a standard weight, and can also be other objects, such as a stone or a metal block.

[0058] In order to speed up the test, the total mass of the weights 32 on the multiple load members is not less than the mass of the display product to be tested.

[0059] It should be noted that, if the test time is sufficient, the monitoring component 20 may also be disposed on the load component to detect leakage of the adhesive layer when the display screen is completely detached.

[0060] In some embodiments, in order to evenly distribute multiple load members on the display screen to obtain more reasonable test results, the setting positions of the multiple load members 30 on the display screen can be determined based on the size information of the display screen, and / or the multiple load members 30 can be set on the display screen in a row and column matrix.

[0061] In one embodiment, a plurality of load elements 30 are disposed on the display screen in a row and column matrix, wherein the shortest distance between the row closest to the edge of the display screen and the edge of the display screen is a first ratio of the height of the display screen, and the shortest distance between the column closest to the edge of the display screen and the edge of the display screen is a second ratio of the length of the display screen.

[0062] In one specific embodiment, see Figure 4 , Figure 4Schematic diagram of the distribution of multiple load elements on a display screen provided by this application. Figure 4 As shown, the number of the load members 30 is 9, wherein the closest distance between the row closest to the edge of the display screen and the edge of the display screen is one-ninth of the height of the display screen, and the closest distance between the column closest to the edge of the display screen and the edge of the display screen is one-ninth of the length of the display screen. After the load members at the edge of the display screen are determined, the positions of the remaining load members in the display screen are determined according to the positions of the edge load members, so that multiple load members are evenly arranged on the display screen.

[0063] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An adhesion test assembly, characterized in that: include: A support member, used for placing the display product to be tested, wherein the display screen of the display product to be tested is bonded to the target component of the display product to be tested via an adhesive layer; A monitoring component, wherein the monitoring component can monitor a preset degree of peeling of the adhesive layer; the preset degree is a degree of peeling where peeling exists but does not reach complete peeling.

2. The assembly according to claim 1, characterized in that The monitoring element includes at least one of the following: A light monitoring unit, the light monitoring unit is used to monitor whether there is leakage light on the display screen of the display product to be tested; if there is leakage light on the display screen, it is determined that the adhesive layer is peeled off; wherein the leakage area of ​​the leakage light is positively correlated with the degree of peeling of the adhesive layer; The position monitoring unit is used to determine the position of the leaked light when there is leaked light on the display screen, and the leaked position of the leaked light is the peeling position of the adhesive layer.

3. The assembly according to claim 2, characterized in that The light monitoring unit is a color analyzer, and the position monitoring unit is an infrared thermal imager.

4. The assembly according to claim 1, characterized in that The support member includes a support portion, a first connection portion and a second connection portion, wherein: The first connecting portion is connected to the supporting portion and is used to fix the display product to be tested; The second connection portion is connected to an attachment component for setting the monitoring component, and the attachment component is the support portion or the first connection portion.

5. The assembly according to claim 4, characterized in that The support member further includes a first driving member, wherein the first connecting portion is connected to the support portion through the first driving member, and the first driving member is used to drive the first connecting portion to rotate relative to the support portion, thereby adjusting the tilt angle of the display product to be tested; and / or, The first connecting portion includes a first arm and a wall mount, two ends of the first arm are respectively connected to the support portion and the wall mount, and the wall mount is used to fix the display product to be tested, wherein, when the attachment component is the first connecting portion, the second connecting portion is connected to the first arm; And / or, the supporting portion includes a base and a bracket, one end of the bracket is connected to the base, and the other end of the bracket is connected to the first connecting portion.

6. The assembly according to claim 4, characterized in that The second connecting portion comprises a slide rail, and the monitoring component is arranged on the slide rail and can move on the slide rail.

7. The assembly according to claim 6, characterized in that The second connecting portion further comprises a second arm, and two ends of the second arm are respectively connected to the slide rail and the attachment component; And / or, the second connecting portion further includes a second driving member, and the second driving member is used to drive the monitoring member to move on the slide rail; And / or, the slide rail is in the shape of a ring, and the projection position of the display product to be tested on the plane where the slide rail is located is located within the ring.

8. The assembly according to claim 1, characterized in that It also includes a plurality of load elements, each of which is arranged on the display screen of the display product to be tested.

9. The assembly according to claim 8, characterized in that Each of the load-bearing members comprises a third connecting portion and a load-bearing object, wherein one end of the third connecting portion is connected to the display screen, and the other end is connected to the load-bearing object; And / or, the placement positions of the plurality of load members on the display screen are determined based on the size information of the display screen; And / or, a plurality of the load elements are arranged on the display screen in a row and column matrix.

10. The assembly according to claim 9, characterized in that The plurality of load elements are arranged on the display screen in a row and column matrix, the shortest distance between the row closest to the edge of the display screen and the edge of the display screen is a first ratio of the height of the display screen, and the shortest distance between the column closest to the edge of the display screen and the edge of the display screen is a second ratio of the length of the display screen; The total mass of the weights on the multiple load members is not less than the mass of the display product to be tested.

11. The assembly according to claim 1, characterized in that The target component is the back plate of the display product to be tested, and the support member is connected to the back plate; the display product to be tested is a display product without a frame; And / or, the adhesive in the adhesive layer is screen sealing glue.

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