Lamination air tightness detection device for brightness enhancement film reflecting film and test method thereof

Abstract

The invention relates to the technical field of brightness enhancement film reflecting film performance testing, in particular to a brightness enhancement film reflecting film fitting airtightness detection device and a testing method thereof.The brightness enhancement film reflecting film fitting airtightness detection device comprises a fixed base, a testing shell, a locking piece and a sealing cover, the upper end of the fixed base is fixedly connected with the testing shell, and a testing platform is installed in the middle of the interior of the testing shell; one side of the test shell is rotationally connected with a sealing cover, the other end of the test shell is provided with a locking piece for positioning the sealing cover, two ends of the test shell are respectively provided with a negative pressure air exhaust unit and a marking assembly, one side of the marking assembly is provided with an observation assembly, and two sides of the test platform are respectively provided with a dust removal assembly and a moisture removal assembly; the negative pressure air exhaust unit comprises a negative pressure shell. According to the invention, testing is carried out through an arranged mechanical mechanism, the cost is low, the control is convenient, dust in the testing shell and moisture in air can be further processed by using the pressure change in the testing process, and the accuracy degree of a testing result is effectively improved.

Description

Technical Field

[0001] This invention relates to a device and method for testing the airtightness of a reflective film bonding, particularly to a device and method for testing the airtightness of a reflective film bonding, belonging to the technical field of reflective film performance testing. Background Technology

[0002] The gloss enhancement film and reflective film bonding airtightness testing device is a special equipment used to detect whether there is gas leakage after the gloss enhancement film and reflective film are bonded together. It is mainly used for quality control of optoelectronic products such as backlight modules.

[0003] This device typically includes a sealing test chamber, a pressure sensor, a gas pressure stabilization system, and a data acquisition module. It determines whether the airtightness of the bonding interface meets standards by injecting a stable pressure into one side of the bonded diaphragm assembly and monitoring for pressure changes on the other side. This detection method can effectively identify problems such as poor bonding, air bubbles, or sealant failure, ensuring the structural integrity and long-term stability of the optical diaphragm.

[0004] Existing testing equipment using optical and electronic instruments is costly, and the dust and humidity in the testing environment can affect the test results, leading to inaccurate results. Therefore, there is an urgent need to improve the bonding airtightness testing device and testing method for brightness enhancement film reflective film to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a device and method for testing the airtightness of a reflective film bonding, in order to solve the problems of existing testing equipment using optical and electronic instruments, which are costly and whose test results are inaccurate due to the influence of dust and humidity in the testing environment.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A device and method for testing the airtightness of a reflective film bonding in a brightness enhancement film include a fixed base, a test shell, a locking component, and a sealing cover. The test shell is fixedly connected to the upper end of the fixed base. A test platform is installed in the middle of the test shell. The sealing cover is rotatably connected to one side of the test shell, and a locking component for positioning the sealing cover is installed at the other end of the test shell. A negative pressure extraction unit and a marking assembly are respectively installed at both ends of the test shell. An observation component is installed on one side of the marking assembly. Dust removal and dehumidification components are installed on both sides of the test platform. The negative pressure extraction unit includes a negative pressure shell, and a piston plate is slidably connected inside the negative pressure shell. The piston plate has a first threaded rod rotatably connected to one end of its middle, a fixed frame is helically connected to the outside of the first threaded rod, and a first button is fixedly connected to the other end of the first threaded rod; the marking assembly includes a telescopic spring, a movable plate is fixedly connected to one end of the telescopic spring, a movable column is fixedly connected to the middle of the movable plate, and a fixed column shell is slidably connected to the outside of one end of the movable column; the observation assembly includes an observation plate, a marking mark is provided on the upper side of one end of the observation plate, an indicator assembly is installed on the upper end of the observation plate, a guide frame and a second threaded rod are installed inside the observation plate, and a second button is fixedly connected to one end of the second threaded rod.

[0008] Preferably, the negative pressure shell is fixedly connected to the inner side of one end of the test shell, the vertical projection of the fixing frame is U-shaped, and one end of the fixing frame is fixedly connected to the negative pressure shell by bolts.

[0009] Preferably, the other end of the telescopic spring is fixedly connected to the test shell, the movable column is disposed inside the telescopic spring, one end of the movable column is arc-shaped and the arc-shaped end of the movable column is made of conductive metal material, and the fixed column shell is fixedly connected to one end of the test shell.

[0010] Preferably, the observation plate includes a plate body, the plate body having one threaded hole and two through holes inside, the threaded hole being disposed between the through holes, the plate body being spirally connected to a second threaded rod through the threaded hole, the plate body being slidably connected to a guide frame through the through holes, and one end of the guide frame being fixedly connected to the test shell.

[0011] Preferably, the indicating component includes an indicating needle, one end of which is sharp; a rotating rod is fixedly connected to the inner side of one end of the indicating needle, and a ring plate is rotatably connected to the outer side of one end of the rotating rod via a spring.

[0012] Preferably, the rotating rod is coaxially arranged with the ring plate, the lower end of the rotating rod is rotatably connected to the plate body, and the bottom end of the ring plate is fixedly connected to the plate body.

[0013] Preferably, the indicator needle includes a rod body, one end of which is fixedly connected to an indicator light, and a power source is fixedly connected inside the rod body. A conductive plate is fixedly connected to the end of the rod body near the moving column, and two conductive plates are provided, which are parallel to each other.

[0014] Preferably, there are two dust removal and dehumidification components, which are arranged symmetrically at both ends of the test platform. Each dust removal and dehumidification component includes two dust removal and dehumidification mesh plates, and blades are installed between the two dust removal and dehumidification mesh plates.

[0015] Preferably, the center points of the negative pressure suction unit, the marking component, and the test shell are set on the same horizontal plane, and the upper end of the test platform is set at the center of the test shell, which is cylindrical.

[0016] Preferably, it includes the following steps:

[0017] Step 1: Place the device with the reflective film and brightness enhancement film to be tested on the upper part of the test platform. After placement, seal the upper part of the test shell with the sealing cover. After sealing, position the sealing shell with the locking mechanism.

[0018] Step 2: After the device is placed, control the first button to rotate, which in turn drives the first threaded rod to rotate. During the rotation of the first threaded rod, the piston plate moves. During the movement of the piston plate, a vacuum is drawn inside the test shell, thereby reducing the pressure inside the test shell.

[0019] Step 3: When the pressure inside the test shell decreases, the moving column is held in place by the external atmospheric pressure and moves into the test shell, during which the telescopic spring is compressed.

[0020] Step 4: The operator controls the rotation of the second threaded rod to move the indicator component towards the moving column. When the conductive plate contacts the top of the moving column, the indicator light illuminates, the rotation of the second threaded rod stops, and the test is performed.

[0021] Step 5: After the specified test cycle, observe the deviation between the indicator needle and the indicator light when they are lit, analyze the test results, and judge the sealing effect based on the analysis results.

[0022] This invention has at least the following beneficial effects:

[0023] 1. In this invention, the test is conducted through a set mechanical mechanism, which is low in cost and easy to control. Moreover, during the test, the pressure changes can be used to further treat the dust inside the test shell and the moisture in the air, effectively improving the accuracy of the test results.

[0024] 2. In this invention, during the testing process, the test results can be magnified by the set indicator component. By rotating one end of the indicator needle a small distance, a large distance can be achieved by rotating the other end, which is convenient for observation. At the same time, the placement position can be precisely adjusted, which has good practical value.

[0025] 3. In this invention, the degree of negative pressure can be controlled during the testing process, and the state of negative pressure can be accurately transmitted through the set marking component, so as to accurately evaluate the sealing degree of the device in the future. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a diagram of the internal structure of the test platform of this invention;

[0028] Figure 3 This is a schematic diagram of the negative pressure extraction unit structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the marking component structure of the present invention;

[0030] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B;

[0031] Figure 6 This is a schematic diagram of the observation component structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the observation plate structure of the present invention;

[0033] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0034] Figure 9 This is a schematic diagram of the indicator needle structure of the present invention.

[0035] In the diagram, 1 is the fixed base;

[0036] 2. Negative pressure suction unit; 21. Negative pressure shell; 22. Piston plate; 23. Fixing bracket; 24. First threaded rod; 25. First button;

[0037] 3. Marking assembly; 31. Telescopic spring; 32. Movable plate; 33. Movable column; 34. Fixed column shell;

[0038] 4. Observation components;

[0039] 41. Observation plate; 411. Plate body; 412. Threaded hole; 413. Through hole;

[0040] 42. Marking and labeling;

[0041] 43. Indicator assembly; 431. Indicator needle; 4311. Rod body; 4312. Indicator light; 4313. Power supply; 4314. Conductive plate;

[0042] 432. Rotating rod; 433. Clock spring; 434. Ring plate;

[0043] 44. Guide frame; 45. Second threaded rod; 46. Second button;

[0044] 5. Test housing; 6. Locking component; 7. Sealing cover; 8. Test platform;

[0045] 9. Dust removal and moisture removal components; 91. Dust removal and moisture removal mesh; 92. Blades. Detailed Implementation

[0046] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0047] like Figures 1-9 As shown, this embodiment provides a device and method for testing the airtightness of a reflective film for brightness enhancement, including a fixed base 1, a test shell 5, a locking component 6, and a sealing cover 7. The test shell 5 is fixedly connected to the upper end of the fixed base 1. A test platform 8 is installed in the middle of the test shell 5. The sealing cover 7 is rotatably connected to one side of the test shell 5. A locking component 6 for positioning the sealing cover 7 is installed at the other end of the test shell 5. A negative pressure suction unit 2 and a marking component 3 are respectively installed at both ends of the test shell 5. An observation component 4 is installed on one side of the marking component 3. Dust removal and dehumidification components 9 are installed on both sides of the test platform 8. The negative pressure suction unit 2 includes a negative pressure shell 21. A piston plate 22 is slidably connected inside the negative pressure shell 21. A first threaded rod 24 is rotatably connected to one end of plate 22, and a fixed frame 23 is screwed to the outside of the first threaded rod 24. A first button 25 is fixedly connected to the other end of the first threaded rod 24. The marking assembly 3 includes a telescopic spring 31, a movable plate 32 is fixedly connected to one end of the telescopic spring 31, a movable column 33 is fixedly connected to the middle of the movable plate 32, and a fixed column shell 34 is slidably connected to the outside of one end of the movable column 33. The observation assembly 4 includes an observation plate 41, a marking mark 42 is provided on the upper side of one end of the observation plate 41, an indicator assembly 43 is installed on the upper end of the observation plate 41, a guide frame 44 and a second threaded rod 45 are installed inside the observation plate 41, and a second button 46 is fixedly connected to one end of the second threaded rod 45.

[0048] As a further optimized solution of the present invention, the negative pressure shell 21 is fixedly connected to the inner side of one end of the test shell 5, the vertical projection of the fixing frame 23 is U-shaped, and one end of the fixing frame 23 is fixedly connected to the negative pressure shell 21 by bolts. With the above settings, the negative pressure suction unit 2 can be stably limited and fixed.

[0049] As a further optimized solution of the present invention, the other end of the telescopic spring 31 is fixedly connected to the test shell 5, the movable column 33 is set inside the telescopic spring 31, one end of the movable column 33 is arc-shaped, and the arc-shaped end of the movable column 33 is made of metal conductive material, and the fixed column shell 34 is fixedly connected to one end of the test shell 5. Through the above settings, the marking component 3 can be stably limited, and the stability of the marking component 3 during operation can be guaranteed.

[0050] As a further optimized solution of the present invention, the observation plate 41 includes a plate body 411, and the plate body 411 has one threaded hole 412 and two through holes 413 inside. The threaded hole 412 is disposed between the through holes 413. The plate body 411 is spirally connected to the second threaded rod 45 through the threaded hole 412. The plate body 411 is slidably connected to the guide frame 44 through the through holes 413. One end of the guide frame 44 is fixedly connected to the test shell 5. With the above arrangement, the second threaded rod 45 and the guide frame 44 can be installed and limited.

[0051] As a further optimized solution of the present invention, the indicator component 43 includes an indicator needle 431, one end of which is sharp; a rotating rod 432 is fixedly connected to the inner side of one end of the indicator needle 431, and a ring plate 434 is rotatably connected to the outer side of one end of the rotating rod 432 through a spring 433. Through the above arrangement, the rotating rod 432 can be further positioned.

[0052] As a further optimized solution of the present invention, the rotating rod 432 and the ring plate 434 are coaxially arranged, the lower end of the rotating rod 432 is rotatably connected to the plate body 411, and the bottom end of the ring plate 434 is fixedly connected to the plate body 411. Through the above arrangement, the stability of the indicator needle 431 during rotation can be guaranteed.

[0053] As a further optimized solution of the present invention, the indicator needle 431 includes a rod 4311, an indicator light 4312 is fixedly connected to one end of the rod 4311, a power supply 4313 is fixedly connected inside the rod 4311, and a conductive plate 4314 is fixedly connected to one end of the rod 4311 near the moving column 33. There are two conductive plates 4314, and the two conductive plates 4314 are parallel to each other. With the above arrangement, the observation component 4 can be accurately indicated when it comes into contact with the moving column 33.

[0054] As a further optimized solution of the present invention, there are two dust removal and dehumidification components 9. The two dust removal and dehumidification components 9 are arranged symmetrically at both ends of the test platform 8. Each dust removal and dehumidification component 9 includes two dust removal and dehumidification mesh plates 91. A blade 92 is installed between the two dust removal and dehumidification mesh plates 91, which can remove moisture and dust from the inside of the test shell 5.

[0055] As a further optimized solution of the present invention, the center points of the negative pressure suction unit 2, the marking component 3 and the test shell 5 are set on the same horizontal plane, and the upper end of the test platform 8 is set at the center of the test shell 5. The test shell 5 is cylindrical. Through the above settings, the overall stability of the device during operation can be further improved.

[0056] like Figures 1-9 As shown in this embodiment, the principle of the bonding airtightness testing device and its testing method for a brightness enhancement film reflective film is as follows:

[0057] Includes the following steps:

[0058] Step 1: Place the device with the reflective film of the brightness enhancement film to be tested on the upper end of the test platform 8. After placement, seal the upper end of the test shell 5 with the sealing cover 7. After sealing, position the sealing shell 7 with the locking part 6.

[0059] Step 2: After the device is placed, control the first button 25 to rotate, which in turn drives the first threaded rod 24 to rotate. During the rotation of the first threaded rod 24, the piston plate 22 is moved. During the movement of the piston plate 22, a vacuum is drawn inside the test shell 5, thereby reducing the internal pressure of the test shell 5.

[0060] Step 3: When the internal pressure of the test shell 5 decreases, the moving column 33 is held by the external atmospheric pressure and moves into the test shell 5, during which the telescopic spring 31 is compressed.

[0061] Step 4: The operator controls the second threaded rod 45 to rotate, causing the indicator component 43 to move towards the moving column 33. When the conductive plate 4314 contacts the top of the moving column 33, the indicator light 4312 lights up, the rotation of the second threaded rod 45 is stopped, and the test is performed.

[0062] Step 5: After the specified test cycle, observe the deviation between the indicator needle 431 and the indicator light 4312 when they are lit, analyze the test results, and judge the sealing effect based on the analysis results.

[0063] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0064] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0065] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A device for testing the airtightness of a reflective film bonding, comprising a fixed base (1), a test shell (5), a locking component (6), and a sealing cover (7), characterized in that: The fixed base (1) is fixedly connected to the upper end of the test shell (5), and the test platform (8) is installed in the middle of the test shell (5). A sealing cover (7) is rotatably connected to one side of the test shell (5), and a locking part (6) for positioning the sealing cover (7) is installed at the other end of the test shell (5). A negative pressure suction unit (2) and a marking component (3) are respectively installed at both ends of the test shell (5). An observation component (4) is installed on one side of the marking component (3), and dust removal and dehumidification components (9) are installed on both sides of the test platform (8). The negative pressure suction unit (2) includes a negative pressure shell (21), a piston plate (22) is slidably connected inside the negative pressure shell (21), a first threaded rod (24) is rotatably connected to one end of the piston plate (22), a fixing frame (23) is spirally connected to the outside of the first threaded rod (24), and a first button (25) is fixedly connected to the other end of the first threaded rod (24). The marking component (3) includes a telescopic spring (31), one end of which is fixedly connected to a movable plate (32), the middle of which is fixedly connected to a movable column (33), and one end of which is slidably connected to a fixed column shell (34). The observation component (4) includes an observation plate (41), a mark (42) is provided on the upper side of one end of the observation plate (41), an indicator component (43) is installed on the upper end of the observation plate (41), a guide frame (44) and a second threaded rod (45) are installed inside the observation plate (41), and a second button (46) is fixedly connected to one end of the second threaded rod (45).

2. The device for detecting the airtightness of the bonding of a reflective film for brightness enhancement film according to claim 1, characterized in that: The negative pressure shell (21) is fixedly connected to the inner side of one end of the test shell (5). The vertical projection of the fixing frame (23) is U-shaped. One end of the fixing frame (23) is fixedly connected to the negative pressure shell (21) by bolts.

3. The device for detecting the airtightness of the bonding of a reflective film for brightness enhancement film according to claim 1, characterized in that: The other end of the telescopic spring (31) is fixedly connected to the test shell (5). The movable column (33) is set inside the telescopic spring (31). One end of the movable column (33) is arc-shaped, and the arc-shaped end of the movable column (33) is made of conductive metal. The fixed column shell (34) is fixedly connected to one end of the test shell (5).

4. The device for detecting the airtightness of the bonding of a reflective film for brightness enhancement film according to claim 1, characterized in that: The observation plate (41) includes a plate body (411), which has a threaded hole (412) and two through holes (413) inside. The threaded hole (412) is located between the through holes (413). The plate body (411) is spirally connected to the second threaded rod (45) through the threaded hole (412). The plate body (411) is slidably connected to the guide frame (44) through the through holes (413). One end of the guide frame (44) is fixedly connected to the test shell (5).

5. The device for detecting the airtightness of the bonding of a reflective film for brightness enhancement film according to claim 1, characterized in that: The indicator component (43) includes an indicator needle (431), one end of which is sharp; a rotating rod (432) is fixedly connected to the inner side of one end of the indicator needle (431), and a ring plate (434) is rotatably connected to the outer side of one end of the rotating rod (432) through a spring spring (433).

6. The device for detecting the airtightness of the bonding of a reflective film for a brightness enhancement film according to claim 5, characterized in that: The rotating rod (432) and the ring plate (434) are coaxially arranged. The lower end of the rotating rod (432) is rotatably connected to the plate body (411), and the bottom end of the ring plate (434) is fixedly connected to the plate body (411).

7. The device for detecting the airtightness of the bonding of a reflective film for a brightness enhancement film according to claim 5, characterized in that: The indicator needle (431) includes a rod (4311), one end of which is fixedly connected to an indicator light (4312), and a power supply (4313) is fixedly connected inside the rod (4311). A conductive plate (4314) is fixedly connected to one end of the rod (4311) near the moving column (33). There are two conductive plates (4314), and the two conductive plates (4314) are parallel to each other.

8. The device for detecting the airtightness of the bonding of a reflective film for brightness enhancement film according to claim 1, characterized in that: Two dust removal and dehumidification components (9) are provided. The two dust removal and dehumidification components (9) are set at both ends of the test platform (8) and are symmetrically arranged. Each dust removal and dehumidification component (9) includes two dust removal and dehumidification mesh plates (91). A blade (92) is installed between the two dust removal and dehumidification mesh plates (91).

9. The device for detecting the airtightness of the bonding of a reflective film for brightness enhancement film according to claim 1, characterized in that: The center points of the negative pressure suction unit (2), the marking component (3) and the test shell (5) are set on the same horizontal plane, and the upper end of the test platform (8) is set at the center of the test shell (5). The test shell (5) is cylindrical.

10. A test method for the bonding airtightness testing device of a reflective film for brightness enhancement film according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Place the device with the reflective film of the light enhancement film to be tested on the upper end of the test platform (8). After placement, seal the upper end of the test shell (5) with the sealing cover (7). After sealing, position the sealing shell (7) with the locking part (6). Step 2: After the device is placed, control the first button (25) to rotate, which in turn drives the first threaded rod (24) to rotate. During the rotation of the first threaded rod (24), it drives the piston plate (22) to move. During the movement of the piston plate (22), a vacuum is drawn inside the test shell (5), thereby reducing the pressure inside the test shell (5). Step 3: When the internal pressure of the test shell (5) decreases, the moving column (33) is held by the external atmospheric pressure and moves into the test shell (5), and the telescopic spring (31) is compressed during this process; Step 4: The operator controls the second threaded rod (45) to rotate, causing the indicator component (43) to move towards the moving column (33). When the conductive plate (4314) contacts the top of the moving column (33), the indicator light (4312) lights up, the rotation of the second threaded rod (45) is stopped, and the test is performed. Step 5: After the specified test cycle, observe the deviation between the indicator needle (431) and the indicator light (4312) when they are lit, analyze the test results, and judge the sealing effect based on the analysis results.

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