Analysis of quality inspection process for ruiguan indoor advertising machine LED display screen (A)
May .09.2026
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The product quality directly affects the user experience and service life.
A complete and strict quality inspection process is the key to ensuring the stable operation of advertising machine LED displays. Ruiguan has established a multi link quality inspection system from raw material warehousing to finished product outbound, ensuring that every shipped display screen meets quality standards.
Why is indoor advertising machine LED display quality inspection so important
Indoor advertising machine LED display screens usually need to work continuously for a long time. Any small quality issue may affect the display effect of the entire screen, and even cause an increase in maintenance costs in the later stage.
Through layers of quality inspection, potential problems can be identified in advance:
LED display screens for advertising machines should avoid dead lights caused by welding problems such as virtual soldering and solder leakage
Filter out LED chips with inconsistent photoelectric parameters on the advertising machine's LED display screen to ensure uniform brightness and color throughout the entire screen
Detecting defects in the LED display circuit board of advertising machines in advance to reduce the risk of malfunctions during use
Screening out early failure components of advertising machine LED display screens through aging testing to improve long-term stability
Raw material storage: the first quality inspection checkpoint
The quality control of advertising machine LED display screens starts from the source. After all raw materials enter the factory, they must first undergo warehouse inspection:
1. Advertising machine LED display screen LED bead detection
For each batch of LED display screens for advertising machines, parameters such as wavelength, brightness, and operating voltage are sampled and tested to ensure consistency and compliance with batch requirements, avoiding screen flickering and uneven brightness caused by significant differences in LED bead parameters.
2. Advertising machine LED display screen PCB board inspection
Check the thickness of the PCB board, copper foil thickness, and solder mask layer of the advertising machine LED display screen to ensure that the board meets the design requirements, has no appearance defects such as deformation, bubbles, scratches, etc., and guarantees welding reliability.
3. Detection of LED display driver IC for advertising machines
Verify the model and batch of the LED display driver IC for the advertising machine, sample and inspect the electrical performance to ensure stable operation of the driver chip and accurate grayscale control.
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