Method capable of controlling and indicating LED-LCM test
By adopting an automated conveying and clamping mechanism in LED and LCM testing, the problems of test accuracy and inefficiency are solved, and an efficient and accurate test process is achieved, reducing production costs.
Patent Information
- Application Number
- CN202510089607.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-06-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The low test accuracy and low detection efficiency of LED and LCM lead to increased production costs.
The test device including a conveying mechanism and a clamping mechanism is adopted to transport and position the samples in an orderly manner through the conveying mechanism. The clamping mechanism automatically clamps the samples and releases them automatically after testing, achieving fast and accurate LED and LCM testing.
Improves the accuracy and efficiency of LED and LCM testing, reduces production costs, and improves the level of automation of tests through automated clamping and release operations.
Smart Images
Figure CN120148375A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of LED - LCM testing, and particularly to a method for controlling the indication of LED - LCM testing. Background Art
[0002] LCM, namely Liquid Crystal Module, is called liquid crystal display module or liquid crystal module in Chinese. It refers to a component assembled by liquid crystal display device (LCD liquid crystal screen), connectors, peripheral circuits such as control and drive, PCB circuit board, backlight, structural parts, etc. LCM provides a standard LCD display drive interface for users (such as different types like 4 - bit, 8 - bit, VGA, etc.). Users operate according to the interface requirements to control the correct display of the LCD. LCM is widely used in many fields such as communication devices (such as mobile phones, telephones), household appliances (such as air conditioners), consumer electronics (such as MP3 players, electronic game consoles), educational electronics (such as electronic dictionaries, PDAs), instruments (such as ammeters, multimeters), tax control devices (such as fuel dispensers, cash registers), etc.
[0003] With the wide application of LCM in various electronic products, some special applications have emerged. For example, in POS machines, the indicator LED is also placed on the LCM control board.
[0004] Therefore, in order to conveniently and simultaneously test the LED and LCM, this project aims to improve the accuracy and efficiency of LCM special application testing and reduce production costs. Summary of the Invention
[0005] To solve the technical problems of low testing accuracy and low detection efficiency in the combination of LED and LCM in the background art, the present invention provides a method for controlling the indication of LED - LCM testing.
[0006] The present invention is implemented by the following technical solutions: A method for controlling the indication of LED - LCM testing, including the following steps:
[0007] S1. Test preparation: Prepare the test device and prepare the samples;
[0008] S2. Use the test device to orderly convey and position - test the samples;
[0009] S3. Compare, analyze and record the test data.
[0010] Among them, the test device includes:
[0011] A conveying mechanism, including a frame and a conveying mechanism, and the conveying mechanism is used for continuously conveying the samples.
[0012] The clamping mechanism includes a positioning member and a displacement member. The displacement member pushes the positioning member to move cyclically within the conveying mechanism. The positioning member is used to receive a sample, clamp it, and convey it to the test area for testing. After the test is completed, the clamping of the sample is automatically released, and it returns to its original position under the push of the displacement member to complete a single test.
[0013] The positioning member includes two side plates. The two side plates are symmetrically and fixedly connected to both sides of the top of the frame. An annular groove is formed inside the side plates. A slider is slidably connected inside the annular groove. An active block is fixedly connected to the inner side of the slider. A slide bar is fixedly connected to the inner side of the side plates below the annular groove. A slide plate is slidably connected to the slide bar. Specifically, a horizontal notch is formed on the outer side of the slide plate, and the slide plate is slidably connected to the slide bar by using the horizontal notch. A fixing unit is connected between the active block and the slide plate. The fixing unit is used to synchronously clamp and test the sample and release it after the test is completed when the slider slides along the annular groove and causes a vertical displacement change.
[0014] As a further improvement of the above solution, the fixing unit includes round rods symmetrically and fixedly connected to the active block. A second connecting plate is fixedly connected to the middle of the inner side of the active block. A limiting ring is rotatably connected inside the second connecting plate. A bottom rod is fixedly connected to the bottom end of the limiting ring. A gear is fixedly connected to the bottom end of the bottom rod, and a convex block is fixedly connected to the outer wall of the gear.
[0015] As a further improvement of the above solution, the two round rods are vertically slidably connected to the slide plate. The bottom ends of the two round rods are fixedly connected with a bottom strip. A horizontal chute is formed at the bottom end of the bottom strip. Two sliding blocks are symmetrically and slidably connected inside the chute. Clamping plates are fixedly connected to the bottom ends of the two groups of sliding blocks.
[0016] As a further improvement of the above solution, rack plates are staggeredly and fixedly connected to both sides of the top ends of the two clamping plates, and the inner sides of two adjacent rack plates are meshed with the gear.
[0017] As a further improvement of the above solution, a collar is fixedly connected to the middle of the inner side of the slide plate. A spiral guiding groove is formed on the inner wall of the collar. The guiding groove is slidably connected to the convex block. When the limiting ring slides down with the active block, the gear at the bottom end can be driven to rotate under the sliding of the guiding groove and the convex block, so as to provide transmission for the two rack plates meshed with the gear. Finally, the two clamping plates are synchronously centered and the sample is clamped and fixed. When the limiting ring slides up with the active block, the two clamping plates are synchronously controlled to move away from each other, and the clamping of the sample is released.
[0018] As a further improvement of the above solution, the displacement member includes a displacement motor installed on the outer side of one of the side plates. A screw rod is fixedly connected to the output end of the displacement motor. A sliding plate is threadedly connected to the screw rod. A first connecting plate is fixedly connected to the inner side of the two side plates of the sliding plate. The two sides of the bottom end of the first connecting plate are fixedly connected to the top ends of the two active blocks.
[0019] As a further improvement of the above solution, a vertical groove is provided at the connection between the sliding plate and the first connecting plate. An inner rod is vertically and slidably connected in the vertical groove, and the inner rod is fixedly connected to one side of the top of the first connecting plate.
[0020] As a further improvement of the above solution, the conveying mechanism includes a conveying motor, a conveying roller and a conveyor belt. Two conveying rollers are sequentially rotatably connected in the frame body, and a conveyor belt is sleeved outside the two conveying rollers. One of the conveying rollers is connected to the output end of the conveying motor, and the conveying motor drives the connected conveying roller.
[0021] As a further improvement of the above solution, the sliding plate is in an 'n' shape and is horizontally slidably connected to the adjacent side plate.
[0022] As a further improvement of the above solution, an interface is provided at the top of the sample. The interface is sequentially connected to a first IO pin, a second IO pin and a third IO pin. The other ends of the first IO pin, the second IO pin and the third IO pin are sequentially connected to a first positive electrode, a second positive electrode and a third positive electrode. A first lamp body and a first negative electrode are sequentially connected to the first positive electrode, a second lamp body and a second negative electrode are sequentially connected to the second positive electrode, and a third lamp body and a third negative electrode are sequentially connected to the third positive electrode.
[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0024] (1) The present invention can automatically clamp the sample by using the clamping mechanism, which is convenient for the positioning and insertion of the testing device, thereby effectively improving the testing efficiency of the device for the sample. Moreover, under the program cooperation of the LCM interface, the quick testing of the LED and LCM of the sample can be completed, effectively improving the testing efficiency of related products and reducing the related testing costs.
[0025] (2) The present invention can realize the clamping, opening and releasing operations of the fixing unit in cooperation with the positioning member by using the fixing unit. It can conveniently realize the positioning of the sample, and can also quickly and automatically release the sample after the test is completed, so that the sample can be classified according to the experimental data, effectively improving the testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of a method for controlling the indication of LED-LCM testing provided in Embodiment 1 of the present invention;
[0027] Figure 2 For the present invention Figure 1 A schematic diagram of the structure from a top view perspective;
[0028] Figure 3 For the present invention Figure 2 A schematic cross-sectional structure diagram in the A-A direction;
[0029] Figure 4Schematic diagram of the clamping mechanism of the present invention;
[0030] Figure 5 Schematic diagram of the positioning member of the present invention;
[0031] Figure 6 Schematic diagram of the connection state of the positioning member, displacement member and sample of the present invention;
[0032] Figure 7 Partial sectional structure schematic diagram of the positioning member of the present invention;
[0033] Figure 8 Schematic diagram of the sample of the present invention.
[0034] Main symbol description:
[0035] 1. Conveyor mechanism; 2. Side plate; 3. Annular groove; 4. Slide bar; 5. Slide block; 6. Movable block; 7. First connecting plate; 8. Sliding plate; 9. Screw; 10. Displacement motor; 11. Round bar; 12. Bottom strip; 13. Chute opening; 14. Sliding block; 15. Clamp; 16. Rack plate; 17. Gear; 18. Bottom rod; 19. Convex block; 20. Slide plate; 21. Collar; 22. Guide groove; 23. Second connecting plate; 24. Limit ring; 25. Sample; 26. Interface; 27. First IO pin; 28. Second IO pin; 29. Third IO pin; 30. First positive electrode; 31. First negative electrode; 32. Second positive electrode; 33. Second negative electrode; 34. Third positive electrode; 35. Third negative electrode; 36. First lamp body; 37. Second lamp body; 38. Third lamp body. Detailed implementation manners
[0036] Next, in combination with the drawings and the detailed implementation manners, the present invention will be further described. It should be noted that, on the premise of no conflict, any combination of the following described embodiments or technical features can form a new embodiment.
[0037] Embodiment 1: Please combine with Figures 1-7 , A method for controlling the LED-LCM test that can be used in this embodiment includes the following steps.
[0038] S1. Test preparation: Prepare test devices, including a display color analyzer, a power supply circuit, an FPGA main control circuit, a storage circuit, an LCM screen driving circuit and a JTAG interface circuit, a brightness and chromaticity meter, an integrating sphere, a voltage and current meter, etc., and prepare the sample 25;
[0039] S2. Use the test device to orderly convey and position the sample 25 for testing;
[0040] S3. Compare, analyze and record the test data.
[0041] The test device includes:
[0042] The conveying mechanism 1 includes a frame and the conveying mechanism 1, and the conveying mechanism 1 is used for continuously conveying the sample 25.
[0043] The clamping mechanism includes a positioning member and a displacement member. The displacement member pushes the positioning member to move cyclically within the conveying mechanism 1. The positioning member is used to receive the sample 25, clamp and convey it to the test area for testing. After the test is completed, the clamping of the sample 25 is automatically released, and it returns to its original position under the push of the displacement member to complete a single test.
[0044] The positioning member includes two side plates 2. The two side plates 2 are symmetrically and fixedly connected to both sides of the top end of the frame. An annular groove 3 is formed inside the side plate 2. A slider 5 is slidably connected in the annular groove 3. An active block 6 is fixedly connected to the inner side of the slider 5. A slide bar 4 is fixedly connected to the inner side of the side plate 2 below the annular groove 3. A slide plate 20 is slidably connected to the slide bar 4. Specifically, a horizontal notch is formed on the outer side of the slide plate 20, and the slide plate 20 is slidably connected to the slide bar 4 by means of the horizontal notch. A fixing unit is connected between the active block 6 and the slide plate 20. The fixing unit is used to realize the clamping test of the sample 25 and the release after the test is completed when the slider 5 slides along the annular groove 3 to cause a vertical displacement change.
[0045] The fixing unit includes round rods 11 symmetrically and fixedly connected to the active block 6. A second connecting plate 23 is fixedly connected to the middle of the inner side of the active block 6. A limiting ring 24 is rotatably connected inside the second connecting plate 23. A bottom rod 18 is fixedly connected to the bottom end of the limiting ring 24. A gear 17 is fixedly connected to the bottom end of the bottom rod 18. A convex block 19 is fixedly connected to the outer wall of the bottom rod 18. The two round rods 11 are vertically slidably connected to the slide plate 20. The bottom ends of the two round rods 11 are fixedly connected with a bottom strip 12. A horizontal chute 13 is formed at the bottom end of the bottom strip 12. Two sliding blocks 14 are symmetrically slidably connected in the chute 13. Clamping plates 15 are fixedly connected to the bottom ends of the two groups of sliding blocks 14. Rack plates 16 are alternately and fixedly connected to both sides of the top ends of the two clamping plates 15. Specifically, a group of rack plates 16 are respectively fixedly connected to both sides of the top ends of the two symmetric clamping plates 15. The racks of the two adjacent rack plates 16 are close to each other, and the inner sides of the two rack plates 16 are meshed with the gear 17.
[0046] A collar 21 is fixedly connected to the middle of the inner side of the slide plate 20. A spiral guiding groove 22 is formed on the inner wall of the collar 21. The guiding groove 22 is slidably connected to the convex block 19. When the limiting ring 24 moves downward followingly, the rotation of the gear 17 at the bottom end can be driven by the sliding of the guiding groove 22 and the convex block 19, so as to provide transmission for the two rack plates 16 meshed with the gear 17. Finally, the two clamping plates 15 are synchronously centered and the sample 25 is clamped and fixed. When the limiting ring 24 moves upward followingly, the two clamping plates 15 are synchronously controlled to move away from each other, and the clamping of the sample 25 is released.
[0047] The displacement member includes a displacement motor 10 installed outside one of the side plates 2. A screw rod 9 is fixedly connected to the output end of the displacement motor 10. The screw rod 9 is threadedly connected to a sliding plate 8. The sliding plate 8 is located inside the two side plates 2 and is fixedly connected with a first connecting plate 7. Both sides of the bottom end of the first connecting plate 7 are fixedly connected to the top ends of the two movable blocks 6. Wherein, the connection between the sliding plate 8 and the first connecting plate 7 can be vertically telescopic. The sliding plate 8 is in an "n" shape and is horizontally slidably connected to the adjacent side plate 2 to ensure that the positioning member does not deviate in angle during displacement. Specifically, a vertical groove is provided at the connection between the sliding plate 8 and the first connecting plate 7, and an inner rod is vertically slidably connected in the vertical groove. The inner rod is fixedly connected to one side of the top end of the first connecting plate 7.
[0048] The conveying mechanism 1 includes a conveying motor, conveying rollers and a conveyor belt. Two conveying rollers are sequentially rotatably connected in the frame body, and a conveyor belt is sleeved outside the two conveying rollers. One of the conveying rollers is connected to the output end of the conveying motor, and the conveying motor drives the connected conveying roller.
[0049] The implementation principle of a method for controlling the LED-LCM test in the embodiment of the present application is as follows:
[0050] The conveying motor continuously drives the conveyor belt and sequentially conveys the input samples 25 to the test area in an orderly manner. The displacement motor 10 is started to drive the sliding plate 8 threadedly connected thereto by the screw rod 9, so that the sliding plate 8 and the first connecting plate 7 move synchronously at the top of the conveying mechanism 1. The first connecting plate 7 drives the two movable blocks 6 to slide along the annular groove 3 by means of the slider 5. When the sample 25 is conveyed to the clamping area, the displacement motor 10 is started to make the movable block 6 move downward along the entering end direction. As the first connecting plate 7 drives the two movable blocks 6 on both sides to slide downward, under the vertical sliding of the round rod 11 and the sliding plate 20, the entire bottom strip 12 and the clamping plate 15 at the bottom end can be driven to adapt to the downward movement. And as the movable block 6 moves downward, the limiting ring 24 rotatably connected to the second connecting plate 23 will, under the cooperation of the sleeve ring 21 with a fixed vertical height, finally realize the rotation of the gear 17 that is always engaged with the two rack plates 16 by means of the sliding connection between the convex block 19 and the guiding groove 22. As the movable block 6 moves downward and the gear 17 rotates to drive the two rack plates 16 to engage, the two clamping plates 15 slide inward synchronously and complete the clamping and positioning of the sample 25. At this time, the displacement speed of the sliding plate 8 is the same as the speed of the conveyor belt. After moving the sample 25 to the test position, the conveying mechanism is stopped, and the position of the sliding plate 8 also stops displacement. The entire sample 25 is tested in cooperation with the LCM interface 26.
[0051] After the test is completed, the displacement motor 10 restarts to drive the sliding plate 8. Using the slider 5 and the movable block 6, it slides along the annular groove 3 to a position near the output end. When it is about to reach the upper end of the annular groove 3 quickly during the sliding process, the displacement motor 10 rotates in the reverse direction and drives the sliding plate 8 back to the clamping area at a double speed, waiting to be clamped and fixed again. As the sliding plate 8 expands and contracts to drive the entire connecting plate one 7 and the movable block 6 to slide vertically upward, when the gear 17 rises vertically with the movable block 6, it will rotate in the reverse direction, and the two clamping plates 15 will also rise synchronously to release the tested sample 25, and the sample 25 is classified and uniformly collected according to the feedback data.
[0052] Embodiment 2: Combining Figure 5 、 Figure 6 and Figure 8 , on the basis of Embodiment 1, the further improvement of this embodiment lies in:
[0053] An interface 26 is provided at the top of the sample 25. The interface 26 is successively connected to an IO pin one 27, an IO pin two 28, and an IO pin three 29. The other ends of the IO pin one 27, the IO pin two 28, and the IO pin three 29 are successively connected to a positive electrode one 30, a positive electrode two 32, and a positive electrode three 34. A lamp body one 36 and a negative electrode one 31 are successively connected to the positive electrode one 30. A lamp body two 37 and a negative electrode two 33 are successively connected to the positive electrode two 32. A lamp body three 38 and a negative electrode three 35 are successively connected to the positive electrode three 34. Specifically, corresponding LED lights are connected between three different positive and negative electrodes. The auxiliary test device (not shown) is connected to the interface 26 to test the sample 25. Specifically, the auxiliary test device has been described, and will not be elaborated here.
[0054] The implementation principle of a method for controlling the indication of LED-LCM testing in the embodiment of the present application is as follows:
[0055] The positive electrode one 30, the positive electrode two 32, and the positive electrode three 34 are led out and connected to the IO pin one 27, the IO pin two 28, and the IO pin three 29 of the lighting fixture. The three pins are connected to the LCM interface 26. The negative electrode one 31, the negative electrode two 33, and the negative electrode three 35 are grounded. The software is used to control the voltage levels of the IO pin one 27, the IO pin two 28, and the IO pin three 29. The specific voltage is 0V to 3.3V. The lighting and extinguishing of the indication LEDs and the sequence of the three LEDs lighting up successively are controlled for observation, and the data is recorded in real time.
[0056] The above implementation manners are only the preferred implementation manners of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.
Claims
1. A method for controlling and indicating LED-LCM testing, characterized in that: The following steps are involved: S1. Test preparation: prepare test equipment and samples; S2. Use the testing device to transport the samples in an orderly manner and perform positioning tests; S3. Compare, analyze and record the test data; The test equipment includes: A conveying mechanism, comprising a frame and a conveying mechanism, wherein the conveying mechanism is used to continuously convey the sample; The clamping mechanism includes a positioning member and a displacement member. The displacement member pushes the positioning member to circulate in the conveying mechanism. The positioning member is used to receive the sample and clamp and convey it to the test area for testing. After the test is completed, the sample is automatically released from the clamping and returned to its original position under the push of the displacement member to complete a single test. The positioning member includes two side plates, and the two side plates are symmetrically fixedly connected to both sides of the top of the frame body. An annular groove is provided on the inner side of the side plate, and a slider is slidably connected in the annular groove. A movable block is fixedly connected to the inner side of the slider. A sliding bar is fixedly connected to the inner side of the side plate below the annular groove, and a slide plate is slidably connected to the sliding bar. Specifically, a horizontal groove is provided on the outer side of the slide plate, and the slide plate is slidably connected to the sliding bar by means of the horizontal groove. A fixing unit is connected between the movable block and the slide plate, and the fixing unit is used for synchronously realizing the clamping test of the sample and the release after the test is completed when the slider produces a vertical displacement change as the annular groove slides.
2. A method for controlling and indicating LED-LCM testing as claimed in claim 1, characterized in that: The fixed unit includes a round rod symmetrically fixed to the movable block, a connecting plate 2 is fixed to the middle of the inner side of the movable block, a limiting ring is rotatably connected to the connecting plate 2, a bottom rod is fixed to the bottom end of the limiting ring, a gear is fixed to the bottom end of the bottom rod, and a protrusion is fixed to the outer wall of the gear.
3. A method for controlling and indicating LED-LCM testing as claimed in claim 2, characterized in that: The two round rods are vertically slidably connected to the slide plate, the bottom ends of the two round rods are fixedly connected with bottom bars, the bottom ends of the bottom bars are provided with horizontal sliding grooves, the sliding grooves are symmetrically slidably connected with sliding blocks, and the bottom ends of the two groups of sliding blocks are fixedly connected with clamping plates.
4. A method for controlling and indicating LED-LCM testing as claimed in claim 3, characterized in that: Rack plates are staggered and fixedly connected to both sides of the top ends of the two clamping plates, and the inner sides of two adjacent rack plates are meshed and connected with gears.
5. A method for controlling and indicating LED-LCM testing as claimed in claim 3, characterized in that: A sleeve is fixedly connected to the middle part of the inner side of the slide plate, and a spiral guide groove is opened on the inner wall of the sleeve, and the guide groove is slidably connected with the protrusion, so that when the limit ring slides downward with the movable block, the gear at the bottom can be driven to rotate under the sliding of the guide groove and the protrusion, thereby providing transmission for the two rack plates meshing with the gear, and finally making the two clamping plates synchronously centered and clamping the sample, and when the limit ring slides upward with the movable block, the two clamping plates are synchronously controlled to move away from each other and release the clamping of the sample.
6. A method for controlling and indicating LED-LCM testing as claimed in claim 1, characterized in that: The displacement member includes a displacement motor installed on the outside of one of the side plates, the output end of the displacement motor is fixedly connected to a screw rod, the screw rod is threadedly connected to a sliding plate, the sliding plate is located on the inner sides of the two side plates and is fixedly connected to a connecting plate 1, and the two sides of the bottom end of the connecting plate 1 are fixedly connected to the top ends of the two movable blocks.
7. A method for controlling and indicating LED-LCM testing as claimed in claim 6, characterized in that: A vertical groove is provided at a connection point between the sliding plate and the connecting plate, an inner rod is vertically slidably connected in the vertical groove, and the inner rod is fixedly connected to one side of a top end of the connecting plate.
8. A method for controlling and indicating LED-LCM testing as claimed in claim 1, characterized in that: The conveying mechanism includes a conveying motor, a conveying roller and a conveying belt. Two conveying rollers are connected to the frame for rotation in sequence. Conveying belts are sleeved on the outsides of the two conveying rollers. One of the conveying rollers is connected to the output end of the conveying motor. The conveying motor drives the connected conveying rollers.
9. A method for controlling and indicating LED-LCM testing as claimed in claim 6, characterized in that: The sliding plate is in an N-shape and is horizontally slidably connected with the adjacent side plates.
10. A method for controlling and indicating LED-LCM testing as claimed in claim 5, characterized in that: An interface is provided on the top of the sample, and the interface is connected to IO pin one, IO pin two and IO pin three in sequence, and the other ends of IO pin one, IO pin two and IO pin three are connected to positive pole one, positive pole two and positive pole three in sequence, wherein one positive pole is connected to lamp body one and negative pole one in sequence, wherein positive pole two is connected to lamp body two and negative pole two in sequence, and positive pole three is connected to lamp body three and negative pole three in sequence.