Static Electricity: How to Prevent on LCD Screens?

Our human body naturally generates static electricity. Sometimes, this static reaches high voltages—tens or even hundreds of volts. LCD displays require careful handling during operation, assembly, and use. Preventing static electricity is essential for their protection. So, how do LCD screens guard against static damage? As a professional LCD supplier, Suzhou Proculus Technologies Co., Ltd. explains the methods. We will introduce key anti-static measures for LCD screens.

How static electricity is created?

Static electricity is created when two materials come into contact and then separate, causing an imbalance of electrical charges. Electrons are transferred from one surface to another, leaving one positively charged and the other negatively charged. This charge buildup can remain until it is discharged, often through a sudden spark or contact with a conductive object. Common sources include walking on carpets, removing plastic films, or handling materials like glass or synthetic fabrics—especially in dry environments where static buildup is more likely.

1. Do not touch the outer leads, the circuit on the circuit board, and the metal frame with your hands.

2. If direct contact is necessary, the human body and the module should be kept at the same potential, or the human body should be well-grounded.

3. The soldering iron used for welding and the power tools used for operation must be well-grounded and there is no leakage.

4. Do not use a vacuum cleaner for cleaning, because it will generate strong static electricity.

5. Dry air will also generate static electricity. Therefore, the humidity in the working room should be above RH60%.

6. When taking out or putting it back into the packaging bag or moving the position, also need to be careful to prevent static electricity. Do not change the packaging or discard the original packaging at will.

Conclusion

This guide explains how to prevent static damage in LCD displays, like 4.3-inch screens. The LCD module’s control and drive circuits use low-voltage, low-power CMOS technology. These components are highly vulnerable to electrostatic discharge (ESD). Once damaged by static electricity, they cannot be repaired. The human body can generate high-voltage static electricity—reaching tens or even hundreds of volts. Therefore, proper anti-static precautions are critical during operation, installation, and use of LCD displays.

 

Proculus is a leading innovative company in the embedded device industry, focusing on multifunctional thin-film transistors and LCD display products, including universal asynchronous transceivers and android solutions. We provide a complete and continuously improved liquid crystal display solution for smart displays, making a graphical user interface development simple, economical, and fast. As a manufacturer of customized LCD monitors and screen displays, we can provide you with customized LCD monitors, screens, and panels according to your needs. If you have any needs, please feel free to contact us.

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