Thickness test fixture of display module

Abstract

The utility model discloses a thickness test fixture for a display module, which comprises a test block, a test groove is arranged on the test block, the test groove is used for placing a display module to be tested, and the depth of the test groove is consistent with the sum of the thickness of a standard display module and the thickness of a pressure feedback piece. The edge of the test groove is provided with a jacking part, the jacking part is used for jacking a cover plate of the display module, the bottom of the test groove is provided with a pressure feedback piece, the test groove is used for placing an object to be tested, and the pressure feedback piece is used for sensing extrusion of the object to be tested. When the thickness of the display module in test exceeds the standard thickness, the pressure feedback piece is extruded and sends a signal to prompt a tester that the thickness of the display module in test exceeds the standard thickness, detection during sample output is facilitated, the thickness test fixture of the display module is low in cost and can be recycled for multiple times, the production cost is reduced, and the production efficiency is improved. And the competitiveness of the product is improved.

Description

Technical Field

[0001] The utility model relates to the field of fixtures, in particular to a thickness testing fixture for a display module. Background Art

[0002] With the improvement of living standards, smart wearable devices are becoming more and more popular, and the requirements for product reliability are getting higher and higher, especially for watches / bracelets for outdoor sports, which have more stringent requirements for product waterproof and impact resistance. Users (especially professional athletes) will wear watches / bracelets to collect / track training data when running or swimming in order to develop effective training plans. As an important component of wearable products, the waterproof and impact resistance of the display module are particularly critical. However, when the thickness of the display module on the Z axis exceeds the standard, after assembly, the display module is easy to lift the casing and cause water to enter the whole machine. The detection of exceeding the standard requires very precise equipment for measurement, which is not convenient for production during the test. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a thickness testing fixture for a display module.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A thickness testing fixture for a display module comprises: a test block, a test slot is provided on the test block, a supporting portion is provided at the edge of the test slot, the supporting portion is used to support a cover plate of the display module, a pressure feedback component is provided at the bottom of the test slot, the test slot is used to place an object to be tested, and the pressure feedback component is used to sense the extrusion of the object to be tested.

[0006] In one embodiment, the pressure feedback member is a pressure testing membrane.

[0007] In one embodiment, the bottom surface of the test slot is flat.

[0008] In one embodiment, the thickness testing fixture of the display module further includes an anti-skid pad, and the anti-skid pad is bonded to the top surface of the supporting portion.

[0009] In one embodiment, the test slot is a rectangular parallelepiped structure.

[0010] In one embodiment, the thickness of the pressure testing membrane is 0.1 mm.

[0011] In one embodiment, the depth of the test slot is 3.15 mm.

[0012] In one embodiment, the supporting portion is arranged on the edges of the test slot.

[0013] In one embodiment, the test slot is opened vertically downward.

[0014] In one embodiment, a water channel is provided at the bottom of the test slot.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The thickness test fixture of the display module of the utility model is provided with a test block and a pressure feedback part. A test slot is provided on the test block, and the test slot is used to place the display module to be tested. The depth of the test slot is consistent with the sum of the thickness of the standard display module and the thickness of the pressure feedback part. A pressure feedback part is provided at the bottom of the test slot, and the pressure feedback part is used to sense the extrusion of the object to be tested. When the thickness of the display module under test exceeds the standard thickness, the pressure feedback part is squeezed and a signal is sent to remind the tester that the thickness of the display module being tested exceeds the standard, which is convenient for detection when sampling. The thickness test fixture of the display module is low in cost and can be recycled for many times, which reduces the production cost and improves the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0018] Figure 1 It is a structural schematic diagram of a thickness testing fixture of a display module in one embodiment of the utility model;

[0019] Figure 2 The figure is a schematic diagram of the structure of a thickness testing fixture of a display module in one embodiment of the utility model for testing a display module.

[0020] Reference numerals:

[0021] The test block 10 , the test slot 11 , the holding portion 12 , the pressure feedback member 20 , the anti-skid pad 30 , the water channel 40 , and the display module 50 . DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0023] This application proposes a thickness test fixture for display modules. Figure 1 and Figure 2, including: a test block 10, a test slot 11 is provided on the test block 10, the test slot 11 is used to place the display module 50 to be tested, and the depth of the test slot 11 is consistent with the sum of the thickness of the standard display module 50 and the thickness of the pressure feedback member. A supporting portion 12 is provided at the edge of the test slot 11, and the supporting portion 12 is used to support the edge of the cover plate of the display module 50, so that the tested display module 50 can be lifted up. A pressure feedback member 20 is provided at the bottom of the test slot 11, and the pressure feedback member 20 is used to sense the extrusion of the object to be tested. Only the bottom of the display module 50 with an excessive thickness can be squeezed to the pressure feedback member 20, so that the pressure feedback member 20 sends a signal. When the thickness of the display module 50 under test exceeds the standard thickness, the pressure feedback member 20 is squeezed and sends a signal, prompting the tester that the thickness of the display module 50 being tested exceeds the standard, which is convenient for detection when the sample is produced. The thickness test fixture of the display module has low cost and can be recycled for many times, which reduces the production cost and improves the competitiveness of the product. Preferably, the test slot 11 is a rectangular parallelepiped structure.

[0024] Specifically, the pressure feedback member 20 is a pressure test film, also known as pressure-sensitive paper. The pressure test film carries microcapsules of color-forming substances. The microcapsules burst under pressure and react chemically with the color developer on the pressure-sensitive paper to present a red color. When the staff sees that the pressure test film in the test slot 11 changes from white to red, it can be determined that the thickness of the display module 50 exceeds the standard and is considered a defective product that needs to be reworked. Otherwise, it is a normal product that can be shipped, so as to quickly check the stacking height of the product and ensure product reliability.

[0025] It should be noted that the thickness of the display module 50 is greatest on the touch IC, so the pressure feedback member 20 is disposed below the touch IC to avoid interference between the height of the touch IC and the mainboard of the whole machine, thereby preventing the casing from being lifted up.

[0026] In one embodiment, the bottom surface of the test slot 11 is flat to prevent the pressure test film from being in contact with the display module 50 due to the uneven bottom surface of the test slot 11, resulting in incorrect test results. The thickness test fixture of the display module also includes an anti-skid pad 30, which is bonded to the top surface of the top holding portion 12 to prevent the display module 50 from moving sideways on the top holding portion 12, causing friction damage to the cover of the display module 50, resulting in scratches on the cover, and affecting the display effect.

[0027] Furthermore, the thickness of the pressure test membrane is 0.1 mm. The smaller the thickness of the pressure test membrane, the higher the accuracy of the test result.

[0028] Furthermore, the depth of the test slot 11 is 3.15 mm.

[0029] In another embodiment, see Figure 1The supporting portion 12 is disposed on the edges of the test slot 11 to increase the contact area between the supporting portion 12 and the display module 50 and reduce the pressure, thereby protecting the display module 50 .

[0030] Furthermore, the test slot 11 is opened vertically downward, and the display module 50 is placed in the test slot 11. The edge of the cover plate of the display module 50 is supported on the supporting portion 12. The display module 50 relies on its own gravity to squeeze the pressure test film vertically downward without the need for external force, thus saving power.

[0031] Also, see Figure 1 A water channel 40 is provided at the bottom of the test slot 11. After the pressure test membrane is broken, the pressure test membrane is red, which is easily contaminated to the bottom of the test slot 11 and turns red. The water channel 40 is helpful for cleaning the bottom of the test slot 11. The staff introduces water into the test slot 11 and wipes the red bottom surface. The water used for cleaning can flow out from the water channel 40.

[0032] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A thickness testing fixture for a display module, characterized in that: include: A test block is provided with a test slot, an edge of the test slot is provided with a supporting portion, the supporting portion is used to support the cover plate of the display module, a pressure feedback component is provided at the bottom of the test slot, the test slot is used to place the object to be tested, and the pressure feedback component is used to sense the extrusion of the object to be tested.

2. The thickness testing fixture of the display module according to claim 1, characterized in that: The pressure feedback component is a pressure testing membrane.

3. The thickness testing fixture of the display module according to claim 1, characterized in that: The bottom surface of the test slot is arranged flat.

4. The thickness testing fixture of the display module according to claim 1, characterized in that: It also includes an anti-skid pad, which is bonded to the top surface of the supporting portion.

5. The thickness testing fixture of the display module according to claim 1, characterized in that: The test slot is a rectangular parallelepiped structure.

6. The thickness testing fixture of the display module according to claim 2, characterized in that: The thickness of the pressure test film is 0.1 mm.

7. The thickness testing fixture of the display module according to claim 1, characterized in that: The depth of the test slot is 3.15 mm.

8. The thickness testing fixture of the display module according to claim 1, characterized in that: The supporting part is arranged on the edges around the test slot.

9. The thickness testing fixture of the display module according to claim 1, characterized in that: The test slot is opened vertically downward.

10. The thickness testing fixture of the display module according to claim 1, characterized in that: A water channel is provided at the bottom of the test channel.

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