Selection of large screen in monitoring center: LCD splicing screen vs LED small spacing
Compare the two large-screen options from the perspectives of seams, brightness, lifespan, viewing distance and budget, and provide the basis for selection decisions.
Key differences
| Comparison items | LCD LCD splicing screen | LED small pitch |
|---|---|---|
| Patchwork | There are physical seams (3.5 / 1.8 / 0.88mm) | Really seamless |
| Brightness | 500～700 cd/m² | 600～1200 cd/m², adjustable |
| Contrast | High, black performance is good | Relatively low (but improving) |
| Lifespan | About 50,000 to 60,000 hours, brightness attenuation | About 100,000 hours, single lamp maintenance possible |
| Resolution | Single screen 1920×1080, the total resolution after splicing is high | Depends on the point spacing |
| Viewing distance | Suitable for 3 to 10 meters | Suitable for more than 5 meters |
| Price | Lower, mature solutions | Higher (same area) |
| Maintenance | Full screen replacement | Modular replacement of light panels |
How to choose
- Based on video surveillance and limited budget: LCD splicing screen. The 3.5mm patchwork has little impact in monitoring multi-image scenarios. Best value for money.
- If you need to display a large picture on the entire screen (such as command and dispatch, data visualization): choose a patchwork LCD below 1.8mm, Or directly install LED small spacing.
- Long viewing distance, bright environment: LEDs have small spacing and obvious brightness advantages.
- Long time on (7×24): Both need to pay attention to heat dissipation and brightness attenuation, and LED has more advantages in lifespan.
Key points of LCD splicing screen
- Patchwork: 3.5mm is enough for monitoring; you need to look at the whole picture to choose 1.8mm or 0.88mm, the price difference is obvious.
- Brightness and color consistency: Color calibration must be done for multi-screen splicing, otherwise the different shades of the picture will be very obvious.
- Panel selection: Industrial-grade panels support 7×24, and commercial screens are prone to screen burn when turned on for a long time.
- Brackets and installation: Flatness and load-bearing must be ensured. The front maintenance design can greatly reduce the difficulty of subsequent maintenance.
- Heat dissipation: Leave space for heat dissipation behind the screen to avoid heat accumulation.
Supporting equipment
- Matrix/Decoder: Responsible for sending multi-channel signals to the wall. Make sure that the number of input channels matches the number of output channels.
- Splicing Processor: Achieve cross-screen window opening, roaming, and overlay.
- Control software: Plan patrol, alarm linkage pop-up window.
- Audio and intercom: Command centers often need supporting equipment.
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