Detection platform of backlight source module

Abstract

The utility model relates to the technical field of backlight module detection, and discloses a detection platform of a backlight module, which comprises a base, the top of the base is provided with a regulation and control assembly, and the top of the base is provided with a temperature control assembly. The detection platform of the backlight source module is provided with the ventilation slot, the hot-air blower, the first filter screen, the insertion slot, the second filter screen, the shunt pipe, the air outlets and the exhaust valve, hot air is uniformly discharged into the cover body through the air outlets formed in the shunt pipe through the work of the hot-air blower, so that the required detection temperature in the cover body is reached, and the detection efficiency is improved. The situation that detection is not accurate enough due to the temperature of various parts during detection is avoided; through the arrangement of the first filter screen and the second filter screen, entering air can be purified, dust is prevented from being attached to the surface of the backlight source module, the detection result is prevented from being influenced, the detection accuracy is improved, and the requirements of people are met.

Description

Technical Field

[0001] This utility model relates to the field of backlight module testing technology, specifically a testing platform for backlight modules. Background Technology

[0002] A backlight module is a device used to provide a backlight for LCD displays and other similar devices. It mainly consists of multiple components such as a light source, a light guide plate, a reflective sheet, a diffuser sheet, and a brightness enhancement film. Because backlight modules can have quality problems such as uneven brightness, color deviation, and light leakage, a testing platform is needed to test backlight modules and ensure that the products meet the requirements.

[0003] The prior art patent document CN212721994U provides a detection platform for backlight modules. It uses vacuum adsorption to apply pressure to the backlight module, and the pressure applied to the backlight module is very uniform, so that foreign objects and defects in the backlight module can be effectively detected with a low false detection rate.

[0004] While the existing technology described above can effectively test backlight modules, temperature has a significant impact on the performance of module components. It is necessary to simulate different temperatures for testing, but the device cannot control the temperature during testing, making the components susceptible to temperature effects and resulting in inaccurate testing. In addition, the device lacks dustproof functionality, allowing dust to easily adhere to the surface of the backlight module during testing, affecting the test results and failing to meet people's needs. Therefore, we need a testing platform for backlight modules. Utility Model Content

[0005] The purpose of this utility model is to provide a testing platform for backlight modules to solve the problems mentioned in the background art, such as the inability to control the temperature during testing, the easy influence of temperature on components leading to inaccurate testing, and the lack of dustproof function, which allows dust to easily adhere to the surface of the backlight module during testing, affecting the testing results.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a detection platform for a backlight module, including a base, wherein a control component is provided on the top of the base, and a temperature control component is provided on the top of the base;

[0007] The control component includes a cover, and the inner wall of the cover has a pick-and-place hole. The inner wall of the cover is equipped with a display screen and a gooseneck tube. One end of the gooseneck tube is equipped with an LED light. The inner wall of the base has a sliding groove, and the outer wall of the base is equipped with a motor. The output shaft of the motor is fixedly connected to a threaded rod through a coupling. The outer wall of the threaded rod is threadedly connected to a slider, and the outer wall of the slider is fixedly connected to a base. The outer wall of the base is fixedly connected to a sealing plate.

[0008] The temperature control component includes a temperature control box, and the inner wall of the temperature control box has a ventilation slot. A hot air blower is installed on the outer wall of the ventilation slot, and a first filter screen is provided on the outer wall of the ventilation slot. The inner wall of the temperature control box has a slot, and the inner wall of the slot is provided with a second filter screen. One end of the ventilation slot is connected to a diversion pipe, and the inner wall of the diversion pipe has an air outlet. An exhaust valve is provided on the top of the cover.

[0009] Preferably, the inner wall shape and size of the loading and unloading hole match the outer wall shape and size of the sealing plate, and the inner wall of the loading and unloading hole fits into the outer wall of the sealing plate.

[0010] Preferably, the motor forms a moving structure with the slider via a threaded rod, and one end of the threaded rod threaded through the slider.

[0011] Preferably, there are two sliders, and the two sliders are symmetrically arranged on the base.

[0012] Preferably, the inner wall shape and size of the slot match the outer wall shape and size of the second filter, and the inner wall of the slot fits into the outer wall of the second filter.

[0013] Preferably, the temperature control box forms a sliding structure with the second filter screen through a slot, and one end of the slot passes through the temperature control box and extends into the ventilation slot for connection.

[0014] Preferably, there are multiple air outlets, and the multiple air outlets are equally spaced on the diverter pipe.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0016] Firstly, this utility model is equipped with a ventilation slot, a hot air blower, a first filter, a slot, a second filter, a distribution pipe, an air outlet, and an exhaust valve. The hot air blower, through multiple air outlets on the distribution pipe, evenly discharges hot air into the enclosure, ensuring the enclosure reaches the required detection temperature. This prevents inaccurate detection due to temperature issues with various components. The first and second filters purify the incoming air, preventing dust from adhering to the backlight module surface and affecting detection results, thus improving accuracy and meeting people's needs.

[0017] Secondly, this utility model includes a cover, a pick-and-place hole, a display screen, a gooseneck tube, LED lights, a slide, a motor, a threaded rod, a slider, a base, and a sealing plate. After the operator fixes the backlight module onto the base, the motor moves the base into the cover. The sealing plate on the base closes the pick-and-place hole, reducing heat loss and dust ingress when picking up and placing multiple backlight modules, thus improving the accuracy of the test. By adjusting the brightness of the LED lights, different light intensity scenarios can be simulated, thereby testing the adaptability of the backlight module under different scenarios. The structure is simple and the operation is convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the base and temperature control box structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the base and motor structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the temperature control box and hot air blower of this utility model.

[0022] The components include: 1. Base; 2. Control components; 201. Cover; 202. Loading / unloading hole; 203. Display screen; 204. Gooseneck tube; 205. LED light; 206. Slide rail; 207. Motor; 208. Threaded rod; 209. Slider; 210. Platform; 211. Sealing plate; 3. Temperature control components; 301. Temperature control box; 302. Ventilation slot; 303. Hot air blower; 304. First filter screen; 305. Slot; 306. Second filter screen; 307. Diverter pipe; 308. Air outlet; 309. Exhaust valve; 4. Detection components. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4As shown, a testing platform for a backlight module includes a base 1, a control component 2 and a temperature control component 3 on the top of the base 1; the control component 2 includes a cover 201, with a pick-and-place hole 202 on the inner wall of the cover 201, a display screen 203 on the inner wall of the cover 201, and a gooseneck tube 204 on the inner wall of the cover 201, with an LED light 205 installed at one end of the gooseneck tube 204; a sliding groove 206 is provided on the inner wall of the base 1, and a motor 207 is installed on the outer wall of the base 1; the output shaft of the motor 207 is fixedly connected to a threaded rod 208 via a coupling, and a slider 2 is threadedly connected to the outer wall of the threaded rod 208. 09, and the outer wall of the slider 209 is fixedly connected to the base 210, and the outer wall of the base 210 is fixedly connected to the sealing plate 211; the temperature control component 3 includes a temperature control box 301, and the inner wall of the temperature control box 301 is provided with a ventilation groove 302, the outer wall of the ventilation groove 302 is equipped with a hot air blower 303, and the outer wall of the ventilation groove 302 is provided with a first filter screen 304, the inner wall of the temperature control box 301 is provided with a slot 305, and the inner wall of the slot 305 is provided with a second filter screen 306, one end of the ventilation groove 302 is connected to a diversion pipe 307, and the inner wall of the diversion pipe 307 is provided with an air outlet 308, and the top of the cover 201 is provided with an exhaust valve 309.

[0025] Through the above technical solution, the hot air blower 303 operates, causing hot air to be evenly discharged into the enclosure 201 through multiple air outlets 308 on the distributor 307. This ensures that the temperature inside the enclosure 201 reaches the required detection temperature, preventing inaccurate detection due to temperature issues with various components. The first filter 304 and the second filter 306 purify the incoming air, preventing dust from adhering to the backlight module surface and affecting the detection results, thus improving detection accuracy and meeting people's needs. After the staff fixes the backlight module onto the platform 210, the motor 207 moves the platform 210 into the housing 201. The sealing plate 211 on the platform 210 closes the pick-up and drop hole 202, which reduces heat loss and dust entry into the housing 201 when picking up and dropping multiple backlight modules, thus improving the accuracy of the test. By adjusting the brightness of the LED light 205, different light intensity scenarios can be simulated, thereby testing the adaptability of the backlight module under different scenarios. The structure is simple and the operation is convenient.

[0026] Specifically, the inner wall shape and size of the loading and unloading hole 202 match the outer wall shape and size of the sealing plate 211, and the inner wall of the loading and unloading hole 202 fits against the outer wall of the sealing plate 211.

[0027] Through the above technical solution, when the platform 210 moves the sealing plate 211 to the pick-up and put-down hole 202, the two can fit tightly together, so that the cover 201 forms a closed space, preventing external dust and other objects from entering the cover 201 and preventing temperature loss inside the cover 201; a sealing ring is provided on the outer wall of the pick-up and put-down hole 202; a fixing component is provided on the platform 210, which includes an electric push rod, a horizontal plate, a stud, a clamp, a cavity, a mounting frame, conductive contacts, a placement groove, a mounting groove, a vacuum chamber, a first through hole, a second through hole, a guide sleeve, a guide rod, and a hose. Vacuum adsorption is used to apply pressure to the backlight module, thereby stabilizing the backlight module during the detection process and ensuring the accuracy of the detection. The fixing component is existing technology and will not be described in detail; the detection component 4 includes a slide, an imaging detection device, a transparent film, a vertical rod, and a mounting frame. The detection component 4 is existing technology and will not be described in detail; a temperature sensor and a pressure sensor are provided on the inner wall of the cover 201; a controller is provided on the outer wall of the base 1.

[0028] Specifically, the motor 207 forms a moving structure with the slider 209 via the threaded rod 208, and one end of the threaded rod 208 is threaded through the slider 209.

[0029] With the above technical solution, when the motor 207 is working, it drives the threaded rod 208 to rotate, causing the slider 209 to move; the inner wall of the slide groove 206 is provided with a fixed bearing, and one end of the threaded rod 208 extends into the fixed bearing for connection. When the threaded rod 208 rotates, the threaded rod 208 can rotate more stably through the fixed bearing.

[0030] Specifically, there are two sliders 209, and the two sliders 209 are symmetrically arranged on the base 210.

[0031] With the above technical solution, when the motor 207 works and the slider 209 moves, the slider 209 can drive the platform 210 to move. By setting two symmetrical sliders 209, the platform 210 can move more stably and avoid tilting or shaking.

[0032] Specifically, the inner wall shape and size of the slot 305 match the outer wall shape and size of the second filter 306, and the inner wall of the slot 305 fits into the outer wall of the second filter 306.

[0033] With the above technical solution, when the staff pulls the handle on the outer wall of the second filter screen 306 to remove the second filter screen 306, the second filter screen 306 can move more stably through the slot 305, making the replacement operation of the second filter screen 306 more convenient.

[0034] Specifically, the temperature control box 301 forms a sliding structure with the second filter screen 306 through the slot 305, and one end of the slot 305 passes through the temperature control box 301 and extends into the ventilation slot 302 for connection.

[0035] Through the above technical solution, the sliding structure allows the second filter screen 306 to be easily inserted into or removed from the slot 305, facilitating the replacement and maintenance of the second filter screen 306.

[0036] Specifically, there are multiple air outlets 308, and these multiple air outlets 308 are equidistantly located on the diverter pipe 307.

[0037] Through the above technical solution, the multiple equally spaced air outlets 308 can evenly discharge the hot air in the diversion pipe 307, thereby making the temperature distribution inside the cover 201 more uniform and avoiding excessive local temperature, which would affect the accuracy of the detection. The number of diversion pipes 307 is two, and the two diversion pipes 307 are symmetrically arranged on the inner wall of the cover 201, which can evenly release hot air from both sides and avoid uneven temperature caused by unilateral heating.

[0038] In use, first connect the device to an external power supply. The external power supply powers the device, and the hot air blower 303 operates, causing outside air to be purified through the second filter 306. The clean hot air is then delivered to the distribution pipe 307 and evenly discharged through multiple air outlets 308. The exhaust valve 309 releases the air pressure from the inner wall, allowing the cover 201 to reach the required detection temperature, avoiding problems such as temperature and dust adhesion that could affect the accuracy of the detection. After the operator fixes the backlight module into the mounting slot on the base 210, the motor 207 operates, driving the threaded rod 208 to rotate, causing the slider 209 to move. 09 drives the platform 210, moving the backlight module on the platform 210 to the detection area inside the cover 201. The platform 210 drives the sealing plate 211 to move, so that the sealing plate 211 fits tightly with the pick-up and drop hole 202, making the cover 201 a closed space. When picking up and dropping multiple backlight modules, it reduces the temperature loss and dust entry inside the cover 201. By adjusting the brightness of the LED light 205, different light intensity scenes can be simulated, thereby testing the adaptability of the backlight module under different scenes. This completes all the work. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing platform for a backlight module, comprising a base (1), characterized in that: The top of the base (1) is provided with a control component (2) and a temperature control component (3). The control component (2) includes a cover (201), and the inner wall of the cover (201) is provided with a pick-up and put-out hole (202). The inner wall of the cover (201) is provided with a display screen (203), and the inner wall of the cover (201) is provided with a gooseneck tube (204). One end of the gooseneck tube (204) is equipped with an LED light (205). The inner wall of the base (1) is provided with a sliding groove (206), and the outer wall of the base (1) is equipped with a motor (207). The output shaft of the motor (207) is fixedly connected to a threaded rod (208) through a coupling. The outer wall of the threaded rod (208) is threadedly connected to a slider (209), and the outer wall of the slider (209) is fixedly connected to a platform (210). The outer wall of the platform (210) is fixedly connected to a sealing plate (211). The inner wall of the cover (201) is provided with a detection component (4). The temperature control component (3) includes a temperature control box (301), and the inner wall of the temperature control box (301) is provided with a ventilation slot (302). A hot air blower (303) is installed on the outer wall of the ventilation slot (302), and a first filter screen (304) is provided on the outer wall of the ventilation slot (302). A slot (305) is provided on the inner wall of the temperature control box (301), and a second filter screen (306) is provided on the inner wall of the slot (305). One end of the ventilation slot (302) is connected to a diversion pipe (307), and an air outlet (308) is provided on the inner wall of the diversion pipe (307). An exhaust valve (309) is provided on the top of the cover (201).

2. The testing platform for a backlight module according to claim 1, characterized in that: The inner wall shape and size of the take-up hole (202) match the outer wall shape and size of the sealing plate (211), and the inner wall of the take-up hole (202) fits against the outer wall of the sealing plate (211).

3. The testing platform for a backlight module according to claim 1, characterized in that: The motor (207) forms a moving structure with the slider (209) through the threaded rod (208), and one end of the threaded rod (208) is threaded through the slider (209).

4. The testing platform for a backlight module according to claim 1, characterized in that: The number of sliders (209) is two, and the two sliders (209) are symmetrically arranged on the base (210).

5. The testing platform for a backlight module according to claim 1, characterized in that: The inner wall shape and size of the slot (305) match the outer wall shape and size of the second filter (306), and the inner wall of the slot (305) fits into the outer wall of the second filter (306).

6. The testing platform for a backlight module according to claim 1, characterized in that: The temperature control box (301) forms a sliding structure with the second filter screen (306) through the slot (305), and one end of the slot (305) passes through the temperature control box (301) and extends into the ventilation slot (302) for connection.

7. The testing platform for a backlight module according to claim 1, characterized in that: The number of air outlets (308) is multiple, and the multiple air outlets (308) are equally spaced on the diverter pipe (307).

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