Table of Contents

Quick Takeaway:

Visual effect, stability and energy consumption are the key points in
usage of led display. And when we do the inspection, it can mainly be
divided into 5 categories.

1. Order information compliant with PI
2. Appearance Check before power up
3. Screen Splicing Check
4. Function Check after power up
5. Stability Check

Reference Documents:

• SJ/T 11141-2017 Generic Specification for LED displays
• SJ/T 11281-2017 Measure Methods of light emitting diode (LED) displays
• GB/T 43770-2024 Specification for Indoor LED displays

Order information compliant with PI

When you place a order, you would have a specs detail that offered by
your supplier, Hence the first thing in inspect the led display is to
check if the materials used in the order is compliant with the PI.
Important components like LED lamps, ICs and Power suppliers not only
affect the price of the led display a lot, but also affect the quality a
lot.

Appearance Check before power up

Appearance check before power up is mainly focus on appearance flaws,
Such as

1. Scratches
2. Burrs or Broken parts
3. Missing or loosing Screws, Safety cables
4. Labels
5. Panel's color uniformity check

Screen Splicing Check

1. Splicing gaps check
2. Splicing evenness check
3. Screen color uniformity
4. All electric socket integrity
5. Connection plate integrity and rigidity

Function Check after power up

Function check is the most important check of all, as this determine the
visual effect of the led display. Normally for the function check, we
need to let the led display warm up first.

Stability Check

1. Power off test
2. Waterproof Checking
3. Shaking testing
4. Fire Resistant testing
5. Certificates requirements