1. Panel Grade Traps
The industry term A-grade panel lacks a unified standard. Some manufacturers package B-grade panels as A-grade. Before signing, explicitly require A+ or A-grade (zero dead pixels) and specify acceptance criteria in the contract.
2. Brightness Inflation
Inflated brightness specs are an industry chronic problem. Verify with a spectrophotometer during acceptance. Actual brightness should not be below 90% of rated specifications.
3. Interface Compatibility
Confirm HDMI 2.0 or DP 1.4 (4K@60Hz support), USB 3.0+. For cloud management, confirm RJ45 and Wi-Fi dual-mode connectivity.
4. Thermal Design
Due to ultra-thin designs, thermal space is limited. Fanless solutions offer zero noise but lower cooling efficiency (suitable for climate-controlled indoors). Active fan solutions cool better but generate noise (unsuitable for hotels, galleries).
5. Frame Bezel Quality
Confirm aluminum bezels use anodizing (not spray painting) and wood-grain bezels use thermal transfer (not veneer). Request bezel samples for natural-light inspection.
6. Content Management Platform
Confirm platform supports: remote batch updates, scheduled tasks, device status monitoring, and fault alert push. Request a demo account to personally test the workflow.
7. Gesture Recognition Accuracy
Test in three lighting conditions: exhibition hall lighting, mall daylight, and restaurant dim light. Common gesture recognition success rate should exceed 95% in each environment.
8. AI Digital Human Dialogue Capability
Test with varied natural-language phrasings of the same question and multi-turn contextual dialogue.
9. Dynamic Backlight Bloom Control
Play dark-background-plus-small-white-text test patterns during acceptance. Observe whether visible halos appear around text. Good bloom control indicates mature zone-dimming algorithms.
10. After-Sales System Evaluation
Confirm three key metrics: fault response time (recommended 4-hour remote diagnosis), backup device policy, and nationwide service coverage. Do not just check headquarters — verify authorized service providers in your city.