Display screen thickness detection jig

Abstract

The invention relates to the field of display module thickness detection, and discloses a display screen thickness detection jig which comprises a base and a detection assembly, the base is provided with a containing cavity, the detection assembly comprises a supporting component and a detection component, and one end of the detection component and one end of the supporting component are arranged in the containing cavity. The detection part can move in the vertical direction relative to the supporting part. The detection component comprises a movable support and a detection piece, the detection piece can rotate relative to the movable support, the supporting component is detachably arranged in the containing cavity, the detection component is arranged to be rotatable, the detection jig is in rolling friction when making contact with the surface of the to-be-detected product, friction force can be effectively reduced, and the detection accuracy is improved. According to the technical scheme, the detection jig is simple in structure and convenient to use, the risk that the surface of the to-be-detected product is scratched and smudged is reduced, meanwhile, abrasion to the detection jig can be reduced, the detection accuracy is improved, meanwhile, the movable support and the detection piece are arranged to be in a detachable state, installation and replacement can be facilitated, and the detection jig is more flexible to use.

Description

Technical Field

[0001] This invention relates to the field of display module thickness detection, and more particularly to a display screen thickness detection fixture. Background Technology

[0002] The manufacturing process of touch displays includes a thickness inspection step. Traditionally, this inspection is done manually using a thickness gauge. Existing thickness gauges are essentially fixed-width U-shaped slot gauges that cut and measure the thickness of the display module from all four sides. If the touch display can pass through the U-shaped slot smoothly, the thickness is considered acceptable; otherwise, it is considered unacceptable. However, the existing thickness gauges have flat sides on both sides of the U-shaped slot, and are usually made of hard material. During use, they slide and rub against the touch display surface, presenting two main problems:

[0003] 1. U-shaped grooves wear out relatively quickly. After wear, the groove spacing increases and exceeds the thickness requirement for testing, making them unusable and resulting in a short overall service life. For example, U-shaped groove thickness gauges made of bakelite typically exceed the upper limit of the product specification width after 10,000-14,000 surface wear tests, and can no longer be used. They need to be repaired by re-machining and the groove width needs to be readjusted and calibrated.

[0004] 2. During the sliding test, friction between the testing fixture and the upper surface of the touch screen (the surface of the upper polarizer protective film) can easily cause scratches or dirt to form on the surface of the upper polarizer protective film. This will interfere with the post-processing after the thickness test of the touch screen: MAOI (Automatic Module Illumination Detection), affecting the over-detection and under-detection of MAOI. If one or both sides of the U-shaped groove of the testing fixture are made of soft materials such as silicone, the impact of scratches and dirt on the protective film during thickness testing can be reduced. However, since soft materials will deform to a certain extent when in contact with external objects, the test results will ultimately be inaccurate. Summary of the Invention

[0005] The present invention aims to solve at least one problem in the prior art. To this end, the present invention proposes a display screen thickness detection fixture that provides accurate detection results and whose detection components are easily disassembled and replaced.

[0006] According to an embodiment of the present invention, a display screen thickness detection fixture includes a base and a detection component. The base has a receiving cavity in the middle. The detection component includes a support component and a detection component. One end of the detection component and the support component are disposed in the receiving cavity. The detection component is movable relative to the support component in a vertical direction. The detection component includes a movable bracket and a detection element. The detection element is rotatable relative to the movable bracket. The support component is detachably disposed in the receiving cavity.

[0007] Therefore, this solution, by setting the detection components as supporting parts and rotatable detection parts, changes the sliding friction to rolling friction when the detection fixture contacts the surface of the product to be tested during detection. This effectively reduces friction and the risk of scratches and contamination on the surface of the product to be tested, while also reducing wear on the detection fixture, thereby improving the accuracy of detection. In addition, by setting the movable bracket and detection parts to a detachable state, it is easy to install and replace, making the use of the detection fixture more flexible.

[0008] According to another embodiment of the present invention, the base includes a first surface, a second surface, a third surface and a fourth surface, the first surface and the second surface are correspondingly disposed, the third surface and the fourth surface are correspondingly disposed, and the first surface, the third surface, the second surface and the fourth surface are connected end to end in sequence, thereby defining the receiving cavity between the first surface, the second surface, the third surface and the fourth surface.

[0009] According to another embodiment of the present invention, the first surface and the second surface are respectively provided with side mounting holes, and the third surface is provided with top mounting holes.

[0010] According to another embodiment of the present invention, the fourth surface is provided with a mounting groove on one side surface of the receiving cavity, and the support member cooperates with the mounting groove to achieve connection and fixation.

[0011] According to another embodiment of the present invention, the movable support includes a main body and a hollowed-out portion, the main body being disposed within the receiving cavity, and the hollowed-out portion being disposed at one end of the main body.

[0012] According to another embodiment of the present invention, the device further includes a first fixing member and a second fixing member. The top of the main body is connected and fixed to the third surface through the first fixing member, and the bottom of the main body is connected and fixed to the support member and the fourth surface through the second fixing member.

[0013] According to another embodiment of the present invention, the detection element is a roller, and the detection element is connected and fixed by the roller shaft abutting against both ends of the hollow part.

[0014] According to another embodiment of the present invention, the surface of the detection element is a polyetheretherketone material layer.

[0015] According to another embodiment of the present invention, a third fastener is also included, through which the two sides of the main body are connected and fixed.

[0016] According to another embodiment of the present invention, the first fixing member, the second fixing member and the third fixing member are one or more of bolts, studs, screws, nuts, self-tapping screws, connecting pins and rivets.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention discloses a display screen thickness detection fixture, including a base and a detection component. The base has a receiving cavity in the middle. The detection component includes a support component and a detection component, with one end of the detection component and the support component disposed within the receiving cavity. The detection component can move vertically relative to the support component. The detection component includes a movable bracket and a detection element, which can rotate relative to the movable bracket. The support component is detachably disposed within the receiving cavity. This solution, by configuring the detection component as a support component and a rotatable detection component, changes the sliding friction to rolling friction when the detection fixture contacts the surface of the product to be tested during detection. This effectively reduces friction and the risk of scratches and contamination on the surface of the product to be tested, while also reducing wear on the detection fixture, thereby improving the accuracy of the detection. Furthermore, by making the movable bracket and the detection element detachable, installation and replacement are convenient, making the use of the detection fixture more flexible.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0021] Figure 1 A schematic diagram of an embodiment of the display screen thickness detection fixture provided in this application;

[0022] Figure 2 An exploded view of an embodiment of the display screen thickness detection fixture provided in this application;

[0023] The markings in the diagram mean:

[0024] 10. Display screen thickness measurement fixture;

[0025] 100, base; 101, receiving cavity; 110, first surface; 120, second surface;

[0026] 130. Third surface; 140. Fourth surface; 150. Side mounting hole; 160. Top mounting hole;

[0027] 170. Mounting slot;

[0028] 200. Detection component; 210. Support component; 220. Detection component; 221. Movable bracket;

[0029] 2211. Main body; 2212. Hollowed-out part; 222. Inspection part; 2221. Roller shaft;

[0030] 2222, Roller body; 230, First fixing component; 240, Second fixing component;

[0031] 250. Third fastener; 260. Fourth fastener; 270. First metal washer;

[0032] 280. Second metal gasket. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] To illustrate the display screen thickness detection fixture provided in this application, the following detailed description is provided in conjunction with the accompanying drawings and textual descriptions of the embodiments.

[0037] The following is for reference. Figure 1 and Figure 2 The display screen thickness detection fixture 10 according to an embodiment of the present invention is described as follows: Figure 1 and Figure 2As shown, the display screen thickness detection fixture 10 includes a base 100 and a detection component 200. The base 100 has a receiving cavity 101 in the middle. Further, the detection component 200 includes a support member 210 and a detection member 220. One end of the detection member 220 and the support member 210 is disposed within the receiving cavity 101. The detection member 220 can move vertically relative to the support member 210, thereby enabling the display screen thickness detection fixture 10 to detect products of various sizes. Further, the detection member 220 includes a movable bracket 221 and a detection element 222. The detection element 222 can rotate relative to the movable bracket 221, thereby allowing the detection element 222 to contact the product to be tested. To achieve rolling contact and reduce damage to the product under test, the support component 210 is detachably disposed within the receiving cavity 101, facilitating installation and disassembly. Thus, by configuring the detection assembly 200 as a support component 210 and a rotatable detection component 220, the contact between the detection fixture and the surface of the product under test changes from sliding friction to rolling friction during testing. This effectively reduces friction, minimizing the risk of scratches and contamination on the surface of the product under test, while also reducing wear on the detection fixture, thereby improving detection accuracy. Furthermore, by making the movable bracket 221 and the detection component 222 detachable, installation and replacement are facilitated, making the use of the detection fixture more flexible.

[0038] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the base 100 includes a first surface 110, a second surface 120, a third surface 130, and a fourth surface 140. The first surface 110 and the second surface 120 are correspondingly arranged, and the third surface 130 and the fourth surface 140 are correspondingly arranged. At the same time, the first surface 110, the third surface 130, the second surface 120, and the fourth surface 140 are connected end to end in sequence, thereby defining a receiving cavity 101 between the first surface 110, the second surface 120, the third surface 130, and the fourth surface 140.

[0039] It should be noted that the first surface 110 and the second surface 120 can have the same shape and size. At the same time, the third surface 130 and the fourth surface 140 can have the same shape and size, so that the final enclosed shape is a regular cuboid or cube, which facilitates processing, manufacturing, installation and disassembly.

[0040] It should be noted that the shapes and sizes of the first surface 110 and the second surface 120 are not the same. At the same time, the shapes and sizes of the third surface 130 and the fourth surface 140 may also be different. For example, the width of the third surface 130 at the top is smaller than the width of the fourth surface 140, so that the fourth surface 140 at the bottom has a larger contact area with the outside world, thereby enhancing the overall stability.

[0041] According to an embodiment of the present invention, as Figure 1 and Figure 2 shown, side mounting holes 150 are correspondingly provided on the first surface 110 and the second surface 120, and a top edge mounting hole 160 is provided on the third surface 130. It can be understood that by opening holes on the first surface 110, the second surface 120 and the third surface 130, the moving bracket 221 can be connected and fixed from multiple dimensions.

[0042] It should be noted that the shapes and sizes of the side mounting holes 150 and the top edge mounting holes 160 can be determined according to specific usage scenarios and are not specifically limited herein.

[0043] According to an embodiment of the present invention, as Figure 1 and Figure 2 shown, on one side surface of the fourth surface 140 located inside the accommodation cavity 101, a mounting groove 170 is provided. The part of the support member 210 embedded in the accommodation cavity 101 is matched with the mounting groove 170 to achieve the fixation and positioning of the support member 210 on the fourth surface 140. Further, the mounting groove 170 can be a drawer-shaped slot. Specifically, there are multiple clamping strips in the middle of the drawer-shaped mounting groove 170, so that the mounting groove 170 has a cross-sectional shape similar to a "mountain" shape. It can be understood that the support member 210 can be embedded in the mounting groove 170 by means of lateral sliding and achieve clamping fixation.

[0044] It should be noted that the fourth surface 140 can be provided with bottom mounting holes (not shown in the figure). At the same time, the support member 210 can be connected and fixed to the fourth surface 140 through the second fixing member 240 in the bottom mounting holes.

[0045] It should be noted that the fourth surface 140 can be provided with a magnetic attraction part (not shown in the figure). The support member 210 is positioned through cooperation and connection with the magnetic attraction part.

[0046] According to an embodiment of the present invention, as Figure 1 and Figure 2As shown, the movable bracket 221 includes a main body 2211 and a hollowed-out part 2212. The main body 2211 is disposed in the receiving cavity 101 and is used to connect with the first surface 110, the second surface 120 and the third surface 130, thereby realizing the connection and fixation of the movable bracket 221. The hollowed-out part 2212 is disposed at one end of the main body 2211 and is used to realize the installation and fixation of the detection piece 222.

[0047] It should be noted that the positions of the main body 2211 and the hollowed-out part 2212 can be adjusted according to the specific usage scenario. For example, part of the main body 2211 may be located outside the receiving cavity 101, or part of the hollowed-out part 2212 may be located inside the receiving cavity 101.

[0048] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, it also includes a first fixing member 230 and a second fixing member 240. The top of the main body 2211 is connected and fixed to the third surface 130 through the first fixing member 230, and the bottom of the main body 2211 is connected and fixed to the support member 210 and the fourth surface 140 through the second fixing member 240. Specifically, the third surface 130 has a top edge mounting hole 160. The first fixing member 230 passes through the top edge mounting hole 160 to connect and fix the main body 2211 to the third surface 130. Specifically, the second fixing member 240 can pass through the fourth surface 140. That is, the second fixing member 240 passes through the fourth surface 140 and the support member 210 in sequence to connect and fix the main body 2211.

[0049] It should be noted that the number of the first fastener 230 and the second fastener 240 can be one, or the number of the first fastener 230 and the second fastener 240 can be two or more. Preferably, the number of the first fastener 230 and the second fastener 240 can be two, three or four, so as to minimize unnecessary cost expenditures while satisfying the connection effect.

[0050] It should be noted that a buffer (not shown in the figure) is provided between the support member 210 and the main body 2211, so that the support member 210 and the main body 2211 have a certain buffering effect.

[0051] It should be noted that a first metal gasket 270 is provided between the third surface 130 and the main body 2211, and a second metal gasket 280 plays a supporting role, which can support and adjust the position between the third surface 130 and the main body 2211 to ensure the stable connection between the third surface 130 and the main body 2211.

[0052] It should be noted that a second metal gasket 280 is provided between the support component 210 and the main body 2211. The second metal gasket 280 plays a supporting role and can support and adjust the position between the support component 210 and the main body 2211 to ensure a stable connection between the support component 210 and the main body 2211.

[0053] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the detection component 222 is a roller. Further, the roller includes a roller shaft 2221 and a roller body 2222. The detection component 222 is connected and fixed by the roller shaft 2221 abutting against both ends of the hollow part 2212. Specifically, the roller is installed in the hollow part 2212 by the roller shaft 2221. The roller shaft 2221 passes through the mounting holes on both sides of the hollow part 2212. The roller body 2222 is fixed to both sides of the hollow part 2212 by the fourth fixing component 260. At the same time, the roller body 2222 can rotate relative to the roller shaft 2221.

[0054] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the surface of the test piece 222 is a polyether ether ketone (PEEK) material layer. It can be understood that PEEK is a polymer composed of repeating units containing one ketone bond and two ether bonds in the main chain structure. It is a special polymer material with physical and chemical properties such as high temperature resistance and chemical corrosion resistance. It is a type of semi-crystalline polymer material with electrical insulation properties, which can directly contact the surface of the product to be tested, avoiding damage to the surface of the product to be tested.

[0055] It should be noted that the surface of the test piece 222 can also be made of other materials, as long as they are suitable for the specific application scenario.

[0056] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, it also includes a third fastener 250. The two sides of the main body 2211 are connected and fixed by the third fastener 250. Specifically, the third fastener 250 passes through the side mounting holes 150 provided on the first surface 110 and the second surface 120, so as to connect and fix the main body 2211 to the third surface 130, thereby limiting the main body 2211 in the horizontal direction.

[0057] It should be noted that the number of third fasteners 250 can be one, or the number of third fasteners 250 can be two or more. Preferably, the number of third fasteners 250 can be two or four, so as to minimize unnecessary cost expenditures while satisfying the connection effect.

[0058] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the first fastener 230, the second fastener 240, and the third fastener 250 are one or more of the following: bolt, stud, screw, nut, self-tapping screw, connecting pin, and rivet.

[0059] It should be noted that the fourth fastener 260 can also be one or more of the following: bolt, stud, screw, nut, self-tapping screw, connecting pin, and rivet.

[0060] The above-described display screen thickness detection fixture provided in this application is a preferred embodiment and should not be construed as a limitation on the scope of protection of this application. Those skilled in the art should know that various improvements or substitutions can be made without departing from the concept of this application, and all improvements or substitutions should be within the scope of protection of this application, that is, the scope of protection of this application should be determined by the claims.

[0061] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

Claims

1. A fixture for detecting the thickness of a display screen, characterized in that, Including: A base, wherein the base has a receiving cavity in the middle; A detection assembly, comprising a support component and a detection component, wherein one end of the detection component and the support component are disposed within the receiving cavity, and the detection component is capable of moving relative to the support component in a vertical direction; The detection component includes a movable support and a detection element, the detection element being rotatable relative to the movable support, and the support component being detachably disposed within the receiving cavity.

2. The display screen thickness detection fixture as described in claim 1, characterized in that, The base includes a first surface, a second surface, a third surface, and a fourth surface. The first surface and the second surface are correspondingly arranged, and the third surface and the fourth surface are correspondingly arranged. The first surface, the third surface, the second surface, and the fourth surface are connected end to end in sequence, thereby defining the receiving cavity between the first surface, the second surface, the third surface, and the fourth surface.

3. The display screen thickness detection fixture as described in claim 2, characterized in that, The first surface and the second surface are respectively provided with side mounting holes, and the third surface is provided with top mounting holes.

4. The display screen thickness detection fixture as described in claim 2, characterized in that, The fourth surface, located on one side of the receiving cavity, is provided with a mounting groove, and the supporting component cooperates with the mounting groove to achieve connection and fixation.

5. The display screen thickness detection fixture as described in claim 1, characterized in that, The movable support includes a main body and a hollowed-out portion. The main body is disposed within the receiving cavity, and the hollowed-out portion is disposed at one end of the main body.

6. The display screen thickness detection fixture as described in claim 5, characterized in that, It also includes a first fixing member and a second fixing member. The top of the main body is connected and fixed to the third surface through the first fixing member, and the bottom of the main body is connected and fixed to the support member and the fourth surface through the second fixing member.

7. The display screen thickness detection fixture as described in claim 5, characterized in that, The detection component is a roller, which is connected and fixed by the roller shaft abutting against both ends of the hollow part.

8. The display screen thickness detection fixture as described in claim 7, characterized in that, The surface of the test piece is a polyetheretherketone (PEEK) material layer.

9. The display screen thickness detection fixture as described in claim 5, characterized in that, It also includes a third fastener, through which the two sides of the main body are connected and fixed.

10. The display screen thickness detection fixture as described in any one of claims 6 to 9, characterized in that, The first fixing member, the second fixing member, and the third fixing member are one or more of the following: bolt, stud, screw, nut, self-tapping screw, connecting pin, and rivet.

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