Testing device for optical integrated function board supporting column experiment
By designing a test device containing lateral and longitudinal moving mechanisms, the problem that the optical functional board support column experiment in the prior art is not consistent with the actual application, more accurate performance evaluation is achieved, and production optimization data support is provided.
Patent Information
- Application Number
- CN202423209014.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing experimental methods for supporting columns of optical integrated functional boards are inconsistent with the actual application scenarios, and the extrusion and scratch resistance of optical functional boards cannot be accurately evaluated, and the test results do not directly reflect the actual use.
A test device including a lateral movement mechanism, a longitudinal movement mechanism and a grinding head mechanism is designed, which can simulate the stress condition of the optical function board in the display terminal, and test it by holding the middle part of the suspended functional board, longitudinal and transverse movement of the grinding head, and in real time, it is used to monitor and control experimental parameters in real time with the pressure sensor.
It achieves a more accurate evaluation of the extrusion and scratch resistance of the optical functional board, providing data support closer to practical applications, helping to optimize production processes and improve product design.
Smart Images
Figure CN223272135U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a testing device for optical integrated functional board supporting column experiments. Background Art
[0002] Optically integrated functional panels are a widely used, high-tech optical material that plays a crucial role in the display industry. They are primarily composed of multiple layers of multifunctional optical functional panels, typically composed of a lower optical diffuser, an optical brightness enhancement panel, and an upper optical diffuser or other optical functional panel. The lower diffuser uses chemical or physical methods to soften and evenly emit incident light. The optical brightness enhancement panel refracts incident light in different directions as it passes through its surface's characteristic structures, increasing its brightness before exiting. The upper optical diffuser protects the fragile optical brightness enhancement panel, concealing blemishes and preventing scratches.
[0003] As optical polymer precision materials, there are common shortcomings such as poor surface wear resistance, easy scratching, and easy crushing of internal structure. Figure 1 As shown, after being assembled into a display terminal, the functional board has triangular support columns on the bottom and the display on the top. During daily use or transportation, if the terminal falls over, or during screen cleaning, disassembly for repair, or machine assembly, the diffuser panel may strike the triangular tip of the support column. This can inevitably cause scratches on the optical diffuser panel and damage to the optical brightness enhancement panel, impacting the brightness enhancement structure and affecting the user experience. Therefore, the extrusion and scratch resistance of the optical integrated functional board is a key parameter in evaluating the quality of the product.
[0004] like Figure 2 As shown, existing experiments generally use a pencil hardness tester to measure the surface hardness of the diffusion plate. This experimental method is to fix pencils of different hardness, place the pen tip on the product surface, and then scratch the surface at a 45° angle. Starting with the hardest pencil, the hardness value gradually decreases until the pencil with no scratches is reached. The pencil specification at this time is the pencil hardness value of the functional plate.
[0005] This method has the following disadvantages: the function board can only slide at a 45° angle on the surface, but the support column actually supports the function board at a vertical 90° direction, and the experimental angle is inconsistent with the actual situation; the function board is placed flat on the experimental table with desktop support, and the pen tip slides on the upper side of the function board, with force applied from top to bottom, but the support column actually pushes up at the bottom of the function board, and there is a distance between the upper end of the function board and the display screen, so it is not close to the display screen, which is inconsistent with the actual application scenario; the function board can only be integrated into multiple layers and the hardness value of each layer is tested once; the test results are the pencil's own specifications, such as 2B, 3B, etc., which cannot provide direct and effective data support for the actual application scenario of the function board. Summary of the Invention
[0006] The purpose of this utility model is to provide a testing device for optical integrated functional board support column experiments that is closer to the needs of actual application scenarios, which is specifically achieved by the following technical solutions:
[0007] A test device for an optically integrated functional board support column experiment, comprising a basic body, a transverse moving mechanism, a functional board clamping portion, a longitudinal moving mechanism and a grinding head mechanism, wherein the transverse moving mechanism is arranged at the upper part of the basic body, and the transverse moving mechanism is connected to the functional board clamping portion to drive the functional board clamping portion to move transversely to one side at the level of the basic body; the longitudinal moving mechanism is arranged at the lower part of the basic body, and the grinding head mechanism is connected to the longitudinal moving mechanism, and the grinding head mechanism is located below the functional board clamping portion, and a grinding head opposite to the functional clamping portion is arranged on the grinding head mechanism; the functional board clamping portion is symmetrically provided with clamps on the edge portion of the side of the grinding head, and the clamps clamp the edge of the functional board so that the middle part of the functional board is suspended in the air; the longitudinal moving mechanism drives the grinding head mechanism to move toward or away from the functional board located in the functional board clamping portion.
[0008] The test device for optical integrated functional board support column experiments is further designed in that the basic body is provided with two controllers for controlling the lateral movement mechanism and the longitudinal movement mechanism respectively.
[0009] The test device for optical integrated functional board support column experiments is further designed in that the longitudinal movement mechanism adopts a screw nut mechanism or a linear telescopic cylinder.
[0010] The test device for optical integrated functional board support column experiment is further designed in that the lateral movement mechanism adopts a screw nut mechanism or a linear telescopic cylinder.
[0011] The test device for optical integrated functional board support column experiment is further designed in that the grinding head mechanism also includes a base, a pressure sensor is provided on the base, and the grinding head is provided on the pressure sensor.
[0012] Compared with existing technologies and products, this utility model has the following advantages:
[0013] By switching from the traditional top-down, tiled testing method to a bottom-up approach, this approach better aligns with the actual application scenarios of optically integrated functional boards in display terminals. By making the functional board under test movable, the same device can test friction in both horizontal and vertical directions, expanding its application. By setting different test parameters, the exact value of functional board failure can be more accurately determined, enabling more precise reverse optimization of the production process and providing valuable data support for product design and process improvement. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the force environment of the function board inside the TV or display.
[0015] Figure 2 It is a schematic diagram of existing detection technology.
[0016] Figure 3 Schematic diagram of the structure of an embodiment of the utility model. DETAILED DESCRIPTION
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0018] As shown in the figure, a test device for an optical integrated functional board support column experiment includes a basic body 1, a lateral moving mechanism 2, a functional board clamping part 3, a longitudinal moving mechanism 4 and a grinding head mechanism 5. The lateral moving mechanism is arranged on the upper part of the basic body, and the lateral moving mechanism is connected to the functional board clamping part to drive the functional board clamping part to move laterally to one side at the level of the basic body; the longitudinal moving mechanism is arranged on the lower part of the basic body, and the grinding head mechanism is connected to the longitudinal moving mechanism. The grinding head mechanism is located below the functional board clamping part, and a grinding head 51 opposite to the functional clamping part is provided on the grinding head mechanism; the functional board clamping part 3 is symmetrically provided with a clamp 31 on the edge part of the side of the grinding head, and the clamp clamps the edge of the functional board so that the middle part of the functional board is suspended; the longitudinal moving mechanism drives the grinding head mechanism to move toward or away from the functional board located in the functional board clamping part.
[0019] The basic body 1 is provided with two controllers 6 for controlling the transverse movement mechanism and the longitudinal movement mechanism respectively.
[0020] The longitudinal movement mechanism adopts a screw-nut mechanism or a linear telescopic cylinder. Similarly, the lateral movement mechanism adopts a screw-nut mechanism or a linear telescopic cylinder. In other words, both the longitudinal movement mechanism and the lateral movement mechanism can adopt existing common linear drive mechanisms, but the directions of arrangement are perpendicular to each other.
[0021] The grinding head mechanism 5 also includes a base 52, which is equipped with a pressure sensor 53. The grinding head is mounted on the pressure sensor. The pressure sensor is connected to the corresponding controller signal. The pressure sensor data reflects the force applied by the grinding head to the functional board in real time, and the stroke of the longitudinal movement mechanism is controlled accordingly.
[0022] The specific applications are as follows:
[0023] Optical functional board 7 sample size: ≤1000*1000mm; grinding head 51 test angle range: 30°~150°; pressure sensor 53 pressure range: 0~50kgf;
[0024] Method 1: Vertical lifting test.
[0025] Step 1: Take the function board 7 with the appropriate size of 200*200mm and fix it on the function board clamping part 3 with the clamp 31;
[0026] Step 2: Turn on the power of the device and press the up button to move the longitudinal moving mechanism 4 upward. The grinding head moves 90 degrees vertically upward and approaches the contact function board 7, and then stops moving upward. At this time, the pressure sensor 53 shows no pressure on the display screen connected to the controller. This position is the test origin.
[0027] Step 3: Use the controller to set the vertical direction test pressure to 2kgf, the number of cycles to 20 times, and the speed to 20 cycles / minute.
[0028] Step 4: Press the run button 13, the vertical push rod 2 moves upward according to the set parameters, the grinding head 51 starts to squeeze the function board 7, and the pressure sensor 53 displays the pressure value on the display screen linked to the controller. When the value reaches the set pressure of 2kgf, the push rod automatically moves down to the test origin, and one test cycle ends and continues to the next test cycle.
[0029] Step 5: After the number of cycles is completed, remove the functional board 7 and check the surface structure of the jacking position and the middle brightness enhancement board under the light source to see if there is any structural damage.
[0030] Step 6: If there is no structural damage, increase the pressure to 2.5kgf, increasing by 0.5kgf each time, and repeat the above 2-5 tests until structural damage occurs. At this point, the performance limit value of the functional panel under vertical impact can be obtained.
[0031] Method 2: Horizontal lowering friction test.
[0032] Step 1: Take the optical functional board 7 with the appropriate size of 200*200mm and fix it on the support board 3 with the clamp 4;
[0033] Step 2: Turn on the power of the equipment and control the up button to move the longitudinal moving mechanism 4 upward. The grinding head will vertically move upward 90 degrees to contact the function board 7. At this time, the pressure sensor 53 will display the pressure on the display screen connected to the controller. When the required pressure of 1.0 kgf is reached, the upward movement will stop and the current pressure will be maintained.
[0034] Step 3: Set the number of cycles required for the horizontal test to 100 times, a speed of 20 cycles / minute, and a displacement of 50mm.
[0035] Step 4: The horizontal push rod 1 moves horizontally according to the set parameters, and the functional plate 7 rubs horizontally on the grinding head 51. One horizontal movement back and forth is one cycle. One test cycle ends and continues to the next test cycle.
[0036] Step 5: After the number of cycles is completed, remove the functional board 7 and check the surface structure of the jacking position and the middle brightness enhancement board under the light source to see if there is any structural damage.
[0037] Step 6: If there is no structural damage, increase the pressure to 1.5kgf, increasing by 0.5kgf each time, and repeat the above 2-5 tests until structural damage occurs. At this point, the performance limit value of the functional panel under vertical and horizontal bidirectional impact can be obtained.
Claims
1. A test device for optical integrated functional board support column experiment, characterized in that The utility model comprises a basic body, a transverse movement mechanism, a function board clamping part, a longitudinal movement mechanism and a grinding head mechanism, wherein the transverse movement mechanism is arranged on the upper part of the basic body, the transverse movement mechanism is connected to the function board clamping part so as to drive the function board clamping part to move transversely to one side at the level of the basic body; the longitudinal movement mechanism is arranged on the lower part of the basic body, the grinding head mechanism is connected to the longitudinal movement mechanism, the grinding head mechanism is located below the function board clamping part, and a grinding head opposite to the function board clamping part is arranged on the grinding head mechanism; the edge part of the function board clamping part facing the side of the grinding head is symmetrically provided with a clamp, the clamp clamps the edge of the function board so that the middle part of the function board is suspended; The longitudinal movement mechanism drives the grinding head mechanism to move toward or away from the function board located in the function board clamping portion.
2. A testing device for optical integrated functional board support column experiment according to claim 1, characterized in that: The basic body is provided with two controllers for controlling the transverse movement mechanism and the longitudinal movement mechanism respectively.
3. The testing device for optical integrated functional board support column experiment according to claim 1, characterized in that: The longitudinal movement mechanism adopts a screw nut mechanism or a linear telescopic cylinder.
4. The testing device for optical integrated functional board support column experiment according to claim 1, characterized in that: The lateral movement mechanism adopts a screw nut mechanism or a linear telescopic cylinder.
5. The testing device for optical integrated functional board support column experiment according to claim 1, characterized in that: The grinding head mechanism further comprises a base, a pressure sensor is arranged on the base, and the grinding head is arranged on the pressure sensor.