Transmittance test fixture

Abstract

The utility model belongs to the technical field of jigs, and particularly relates to a transmittance test jig which comprises a substrate and a pressing plate, one end of the pressing plate is movably hinged with the substrate, a first groove and a circuit board are arranged on the surface of the substrate, the first groove and the circuit board are arranged adjacently, a protection pad is arranged on the surface of the circuit board, and the protection pad is arranged on the surface of the substrate. A second groove is formed in the surface of the first groove, a plurality of positioning grooves are formed in the surface of the second groove, the side portion of the base plate is concaved inwards to form a notch, the notch is communicated with one end of the first groove, and a light-emitting part corresponding to the notch is installed on the surface of the pressing plate. By arranging the pressing plate and the light-emitting part, the display screen cover plate can be uniformly illuminated, and the pressing plate can block interference of external light rays, so that the test accuracy is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixtures, and in particular relates to a transmittance testing fixture. Background Art

[0002] With the rapid development of display panel products (such as LCD panels, OLED panels, and MicroLED panels), consumers are pursuing more and more display effects. After manufacturing and assembly in the factory, in order to ensure quality, the display panel needs to be tested by power-on testing.

[0003] The transmittance of display cover panels is a critical indicator. Industrial production requires that the transmittance of each display cover panel be within an allowable error range to ensure the quality of the display. Therefore, transmittance testing of display cover panels is necessary. Existing transmittance test fixtures cannot adjust the position of the light source, making it difficult for testers to detect the impact of external factors on the test.

[0004] Therefore, it is urgent to propose a new technical solution to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a transmittance test fixture to address the deficiencies of the prior art, which can adjust the position of the light source and improve the accuracy of the test.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A transmittance test fixture includes a substrate and a pressure plate, one end of the pressure plate is movably hinged to the substrate, a first groove and a circuit board are provided on the surface of the substrate, the first groove and the circuit board are arranged adjacent to each other, a protective pad is provided on the surface of the circuit board, a second groove is provided on the surface of the first groove, and a plurality of positioning grooves are provided on the surface of the second groove. The side of the substrate is recessed inward to form a notch, the notch is connected to one end of the first groove, and a light-emitting component corresponding to the notch is installed on the surface of the pressure plate.

[0008] Preferably, one end of the first groove is recessed inward to form a notch, and the notch is connected to the gap.

[0009] Preferably, a first limiting member and a second limiting member are provided opposite to each other on the sides of the recess.

[0010] Preferably, a sliding groove is provided on the surface of the second groove, and the sliding groove extends from one end of the second groove to the other end of the second groove.

[0011] Preferably, the side of the second groove is recessed outward to form a plurality of placement grooves.

[0012] Preferably, a through groove is provided between the second groove and the circuit board, and a fixing groove is provided on the surface of the through groove.

[0013] Preferably, a key module is provided on the surface of the substrate, and the key module is electrically connected to the circuit board and the light-emitting element respectively.

[0014] Preferably, a fixing piece is provided on the surface of the pressing plate, and one end of the fixing piece is connected to the light-emitting piece.

[0015] Preferably, the surface of the substrate has a through hole, the surface of the pressing plate is provided with a wire groove, and the wires of the light-emitting element pass through the wire groove and the through hole in sequence.

[0016] Preferably, a third groove is provided on the surface of the substrate, and the circuit board is arranged in the third groove.

[0017] Preferably, a fixed block is provided on the surface of the base plate, and one end of the pressing plate is connected to the fixed block via a rotating member.

[0018] Preferably, a handle is installed on the surface of the pressing plate.

[0019] The beneficial effects of the present invention are as follows: the present invention comprises a substrate and a pressure plate, one end of the pressure plate is movably hinged to the substrate, a first groove and a circuit board are provided on the surface of the substrate, the first groove is used to place the display screen to be tested, the circuit board is used to power the display screen and drive the display screen to display, the first groove and the circuit board are arranged adjacent to each other, a protective pad is provided on the surface of the circuit board, the protective pad is used to prevent the FPC (flexible circuit board) of the display screen from being scratched, a second groove is provided on the surface of the first groove, and by arranging the first groove and the second groove, display screens of different sizes can be tested, the second groove can also play the role of clamping the display screen, thereby improving the applicability of the fixture, and the second groove The surface of the groove is provided with a plurality of positioning grooves, which are used to clamp the display screen so that the display screen can be moved to different positions for testing. The side of the substrate is recessed inward to form a notch. After light passes through the display screen cover, it is detected by the testing instrument under the notch to obtain the transmittance of the cover plate. The notch is connected to one end of the first groove, and the notch extends to one end of the first groove, so that the display screen can be placed flat on the first groove and the notch. The surface of the pressure plate is installed with a light-emitting element corresponding to the notch. The light-emitting element is used to illuminate the cover plate of the display screen, so that the tester can measure the transmittance of the display screen cover plate under the notch. The light-emitting element can be an LED lamp. By providing the pressure plate and the light-emitting element, the utility model can evenly illuminate the display screen cover plate, and the pressure plate can block interference from external light, thereby improving the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the overall structural diagrams of the present utility model.

[0021] Figure 2 This is the second schematic diagram of the overall structure of the present utility model.

[0022] Among them: 1. Base plate; 11. Notch; 12. Perforation; 13. Fixed block; 14. Rotating part; 2. Press plate; 21. Fixed part; 22. Wire groove; 23. Handle; 3. First groove; 31. Notch; 311. First limit part; 312. Second limit part; 4. Circuit board; 41. Protective pad; 5. Second groove; 51. Positioning groove; 52. Sliding groove; 53. Placement groove; 6. Light-emitting part; 7. Through groove; 71. Fixed groove; 8. Key module; 9. Third groove. DETAILED DESCRIPTION

[0023] If certain words are used in the specification and claims to refer to specific components, those skilled in the art should understand that manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". In the utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0024] The following is combined with Figures 1-2 The present invention is further described in detail with reference to the following specific embodiments, but is not intended to limit the present invention.

[0025] Example 1

[0026] A transmittance test fixture includes a substrate 1 and a pressure plate 2, one end of the pressure plate 2 is movably hinged to the substrate 1, a first groove 3 and a circuit board 4 are provided on the surface of the substrate 1, the first groove 3 is used to place the display screen to be tested, the circuit board 4 is used to power the display screen and drive the display screen display, the first groove 3 and the circuit board 4 are adjacently arranged, a protective pad 41 is provided on the surface of the circuit board 4, the protective pad 41 is used to prevent the FPC (flexible circuit board) of the display screen from being scratched, a second groove 5 is provided on the surface of the first groove 3, by setting the first groove 3 and the second groove 5, display screens of different sizes can be tested, the second groove 5 can also play a role in clamping the display screen, thereby improving the applicability of the fixture, and the surface of the second groove 5 is provided There are several positioning grooves 51, which are used to clamp the display screen so that the display screen can be moved to different positions for testing. The side of the substrate 1 is recessed inward to form a notch 11. After light passes through the display screen cover, it is detected by the testing instrument under the notch 11 to obtain the transmittance of the cover plate. The notch 11 is connected to one end of the first groove 3 and extends to one end of the first groove 3, so that the display screen can be placed flat on the first groove 3 and the notch 11. The surface of the pressing plate 2 is installed with a light-emitting element 6 corresponding to the notch 11. The light-emitting element 6 is used to illuminate the cover plate of the display screen so that the tester can measure the transmittance of the display screen cover plate under the notch 11. The light-emitting element 6 can be an LED light. By setting the pressing plate 2 and the light-emitting element 6, the display screen cover plate can be evenly illuminated, and the pressing plate 2 can block interference from external light, improving the accuracy of the test. The pressing plate 2 can drive the light-emitting element 6 to rotate, and can adjust the position of the light source when detecting the test environment, making it easier for the tester to discover adverse factors affecting the test environment so that corresponding treatment can be made, further improving the accuracy of the test.

[0027] In this embodiment, one end of the first groove 3 is recessed inward to form a notch 31, which is connected to the notch 11 and extends to one end of the second groove 5. The notch 31 makes it easier for testers to remove the display screen from the second groove 5 or place the display screen in the second groove 5.

[0028] In this embodiment, a first stopper 311 and a second stopper 312 are provided on opposite sides of the notch 31. The first stopper 311 and the second stopper 312 can prevent the display screen from sliding out of the second groove 5.

[0029] In this embodiment, a sliding groove 52 is provided on the surface of the second groove 5, and the sliding groove 52 extends from one end of the second groove 5 to the other end of the second groove 5. By providing the sliding groove 52, it is convenient for the tester to translate the display screen and improve the positioning accuracy.

[0030] In this embodiment, the side of the second groove 5 is recessed outward to form a plurality of placement grooves 53 , and the placement grooves 53 are used to prevent the display screen placed in the second groove 5 from being damaged.

[0031] In this embodiment, a through slot 7 is provided between the second groove 5 and the circuit board 4, and a fixing slot 71 is provided on the surface of the through slot 7. The FPC of the display screen passes through the through slot 7. By providing the fixing slot 71, the FPC can be prevented from shaking and affecting the test.

[0032] Example 2

[0033] This embodiment differs from Example 1 in that a key module 8 is provided on the surface of the substrate 1, and is electrically connected to the circuit board 4 and the light-emitting element 6. The key module 8 is provided with a first switch, a second switch, a pause button, and a light-sensing test button, and can control the main power supply, the power supply to the circuit board 4, and the power supply to the light-emitting element 6.

[0034] In this embodiment, a fixing member 21 is provided on the surface of the pressing plate 2, and one end of the fixing member 21 is connected to the light-emitting member 6. By providing the fixing member 21, the connection effect between the pressing plate 2 and the light-emitting member 6 can be improved, and the light-emitting member 6 can be prevented from falling off from the pressing plate 2.

[0035] In this embodiment, the surface of the substrate 1 has a through-hole 12, and the surface of the pressure plate 2 is provided with a wire groove 22. The wires of the light-emitting element 6 pass through the wire groove 22 and the through-hole 12 in sequence. The provision of the wire groove 22 prevents the wires from affecting the rotation angle of the pressure plate 2. The wire groove 22 is filled with silicone rubber to prevent the wires from escaping from the wire groove 22. The provision of the through-hole 12 prevents the wires from passing through the surface of the substrate 1 and affecting the test.

[0036] In this embodiment, a third groove 9 is provided on the surface of the substrate 1, and the circuit board 4 is disposed in the third groove 9. The third groove 9 prevents the circuit board 4 from shifting and reduces the height of the circuit board 4, thereby preventing the FPC of the display screen from bending at an excessive angle.

[0037] In this embodiment, a fixed block 13 is provided on the surface of the substrate 1, and one end of the pressure plate 2 is connected to the fixed block 13 via a rotating member 14. The provision of the fixed block 13 allows the pressure plate 2 to maintain a certain distance from the substrate 1, thereby enabling the pressure plate 2 to move the light-emitting element 6 to a parallel position, ensuring that the light from the light-emitting element 6 to the display screen is more uniform. The rotating member 14 serves as a hinge.

[0038] In this embodiment, a handle 23 is installed on the surface of the pressing plate 2. By providing the handle 23, it is convenient for the tester to move the pressing plate 2.

[0039] The other structures of this embodiment are the same as those of embodiment 1 and will not be described again here.

[0040] Obviously, the utility model includes a substrate and a pressure plate, one end of the pressure plate is movably hinged to the substrate, the surface of the substrate is provided with a first groove and a circuit board, the first groove is used to place the display screen to be tested, the circuit board is used to power the display screen and drive the display screen display, the first groove and the circuit board are adjacently arranged, the surface of the circuit board is provided with a protective pad, the protective pad is used to prevent the FPC (flexible circuit board) of the display screen from being scratched, the surface of the first groove is provided with a second groove, by setting the first groove and the second groove, display screens of different sizes can be tested, the second groove can also play the role of clamping the display screen, thereby improving the applicability of the fixture, and the surface of the second groove is provided with a protective pad. A plurality of positioning grooves are provided, which are used to clamp the display screen so that the display screen can be moved to different positions for testing. The side of the substrate is recessed inward to form a notch. After light passes through the display screen cover, it is detected by the testing instrument under the notch to obtain the transmittance of the cover screen. The notch is connected to one end of the first groove, and the notch extends to one end of the first groove, so that the display screen can be placed flat on the first groove and the notch. The surface of the pressure plate is installed with a light-emitting element corresponding to the notch. The light-emitting element is used to illuminate the display screen cover, so that the tester can measure the transmittance of the display screen cover under the notch. The light-emitting element can be an LED lamp. By providing the pressure plate and the light-emitting element, the utility model can evenly illuminate the display screen cover, and the pressure plate can block interference from external light, thereby improving the accuracy of the test.

[0041] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present utility model fall within the scope of protection of the present utility model. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present utility model.

Claims

1. A transmittance test fixture, characterized in that: The invention comprises a base plate (1) and a pressure plate (2), one end of the pressure plate (2) is movably hinged to the base plate (1), a first groove (3) and a circuit board (4) are provided on the surface of the base plate (1), the first groove (3) and the circuit board (4) are arranged adjacent to each other, a protective pad (41) is provided on the surface of the circuit board (4), a second groove (5) is provided on the surface of the first groove (3), and a plurality of positioning grooves (51) are provided on the surface of the second groove (5), a side portion of the base plate (1) is recessed inward to form a notch (11), the notch (11) is communicated with one end of the first groove (3), and a light-emitting element (6) corresponding to the notch (11) is installed on the surface of the pressure plate (2).

2. The transmittance test fixture according to claim 1, wherein: One end of the first groove (3) is recessed inward to form a notch (31), and the notch (31) is communicated with the gap (11).

3. The transmittance test fixture according to claim 2, wherein: A first limiting member (311) and a second limiting member (312) are oppositely arranged on the sides of the notch (31).

4. The transmittance test fixture according to claim 1, wherein: A sliding groove (52) is provided on the surface of the second groove (5), and the sliding groove (52) extends from one end of the second groove (5) to the other end of the second groove (5).

5. The transmittance test fixture according to claim 1, wherein: The side of the second groove (5) is recessed outward to form a plurality of placement grooves (53).

6. The transmittance test fixture according to claim 1, wherein: A through groove (7) is provided between the second groove (5) and the circuit board (4), and a fixing groove (71) is provided on the surface of the through groove (7).

7. The transmittance test fixture according to claim 1, wherein: A key module (8) is provided on the surface of the substrate (1), and the key module (8) is electrically connected to the circuit board (4) and the light-emitting element (6) respectively.

8. The transmittance test fixture according to claim 1, wherein: A fixing member (21) is provided on the surface of the pressing plate (2), and one end of the fixing member (21) is connected to the light-emitting member (6).

9. The transmittance test fixture according to claim 1, wherein: The surface of the substrate (1) has a through hole (12), the surface of the pressure plate (2) is provided with a wire groove (22), and the wires of the light-emitting element (6) pass through the wire groove (22) and the through hole (12) in sequence.

10. The transmittance test fixture according to claim 1, wherein: A third groove (9) is provided on the surface of the substrate (1), and the circuit board (4) is arranged in the third groove (9).

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