System for clearing local foreign matter on LED backlight module

Abstract

The invention relates to the technical field of industrial production equipment, in particular to a system for clearing local foreign matter on an LED backlight module. The system comprises clearing modules, an adjusting module and a control module. Each clearing module comprises an air inlet pipe, a coupler, a shaft sleeve and a rotary air-blowing disc; the adjusting module comprises a support, fixed seats, a first stepping motor, a second stepping motor, a third stepping motor, electric push rods, first sliding rods, a first sliding rail, second sliding blocks, second sliding rails, a firstball lead screw module and a second ball lead screw module and further comprises first lead screw nuts, a first lead screw, second lead screw nuts, a second lead screw, third lead screw nuts and a third lead screw; the control module comprises a control panel, an ultrasonic sensor, an electromagnetic valve and a dust particle counter; and the control panel comprises a switch button, a pressure gauge and an operation interface. The system for clearing the local foreign matter on the LED backlight module provides a local dust-free space with high cleanliness, the occupied space is small, energyconsumption is little, and the working environment is comfortable.

Description

technical field [0001] The invention relates to the technical field of industrial production equipment, in particular to a local foreign matter cleaning system for LED backlight modules. Background technique [0002] The LED backlight module is one of the key components of the LCD panel. Its function is to supply sufficient brightness and evenly distributed light source so that it can display images normally. During the production process, dust and particles in the air will be adsorbed on the LED backlight module, which will cause product defects and affect the function of the LED backlight module. In order to obtain good product quality, LED backlight modules need to be produced in a dust-free environment. In the prior art, the processing is usually completed in the clean room to improve the quality of the product, but the clean room has the following problems: [0003] 1. The construction system of the clean room is very complicated, and the equipment is expensive, takes...

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Problems solved by technology

[0003] 1. The construction system of the clean room is very complicated, and the equipment is expensive, takes up a lot of space, and the replacement rate of the purification equipment components is high, especially the filter screen of the purification equipment, which needs to be replaced frequently, resulting in high design and maintenance costs;

[0004] 2. The clean room needs to provide a constant temperature and humidity, the power of the required equipment is high, the power consumption is large, and the energy cost is also increased, which is not conducive to energy saving;

[0005] 3. The clean room only purifies the external air, but there are still some uncleaned dust and particles on the original equipment, and the fresh air cannot guarantee complete cleanliness, and these dusts will slowly accumulate on the indoor equipment, eventually As a result, the defect rate of products has increased. At the current domestic technical level, the defect rate of LED backlight modules produced in ordinary clean rooms is usually between 5% and 6%. The best technology is also around 1.3%, and the defect rate is relatively high;

[0006] 4. The general process of the LED backlight module is that after laying the reflector, LED lamp, diffuser, diffuser and brightness enhancement film on the backplane, a middle frame needs to be connected first, and then a glass screen should be covered on the middle frame , since the backplane is formed by stamping, burrs are easily generated inside the punched holes, while the middle frame is made of glass fiber material and ABS material, which is easily scratched by the burrs of the backplane when it is clamped with the backplane Debris is generated and hidden in the recess of the middle frame, which is difficult to remove, resulting in defective products;

[0007] 5. The air flow in the clean room is poor, the air quality is poor, and the staff need to wear sealed dust-proof clothing in the clean room, so working in the clean room for a long time will make people feel uncomfortable, which is not conducive to human health

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