To achieve the best display effect for can-shaped LED displays (such as those shaped like aluminum cans, cylindrical cans, etc.), comprehensive control is needed across five key aspects: structural design, LED pixel selection, control system, installation and commissioning, and post-installation maintenance. Below is a professional guide that can be directly used for project acceptance or supplier communication:
✅ I. Structural and Appearance Design Stage
1. Precise Curved Surface Structure Design
Use 3D modeling (such as SolidWorks, UG) to calculate the radius of curvature of the can body, ensuring a seamless fit of the LED modules.
Irregularly shaped screens often use flexible modules or small-unit magnetic modules to adapt to curved surfaces.
2. Controlling Module Splicing Gaps
A splicing error > 0.5 mm in curved surface structures will result in "edges" or a "stepped" appearance.
Use CNC frames + locating pins to improve assembly accuracy.
✅ II. Core Display Effects: LED Pixel and Module Selection
1. Choosing the Appropriate Dot Pitch (P-value)
Small Tanks: Recommended P1.8–P2.5
Medium Tanks (2–3 meters high): P2.5–P3.0
Large Outdoor Tanks: P4–P6
Smaller dot pitch results in a more detailed image, but also higher cost.
2. Brightness and Contrast Ratio
Indoor: 800–1200 cd/m²
Outdoor: 4000–6000 cd/m² (Avoid direct sunlight causing whitening)
A high-contrast mask is required to improve black purity and make the image more saturated.
3. Refresh Rate and Grayscale
A refresh rate ≥3840 Hz is necessary for flicker-free photography and smooth image movement.
Grayscale ≥14bit ensures smoother gradient transitions.
4. Module Consistency
Use LED chips and ICs from the same batch to reduce color difference.
Brightness and chromaticity binning is mandatory.
✅ III. Control System and Calibration Technology
1. Use a professional irregularly shaped screen control system
For example: Novastar, Colorlight (卡莱特) irregularly shaped mapping support
Pixel mapping can be performed according to the unfolded diagram of the can surface
Ensuring that the image does not experience stretching or compression distortion in the circumferential direction.
2. Calibration Technology
Point-by-point calibration (brightness + chromaticity) can improve image uniformity by 20-30%.
Large screens must undergo gamma correction to make the shadows and highlights more natural.
✅ IV. Installation and Construction to Ensure Stable Display
1. Heat Dissipation Design
Utilizes an aluminum alloy structure + internal airflow duct
Prevents color drift and lifespan reduction due to overheating.
2. Power Supply Layout
Evenly distributed power supply to avoid localized overheating
Employs 80 PLUS certified power supply for stable output.
3. Power Supply Safety
Redundant power supply design
Uses flame-retardant wiring
Provides unit-level protection (fuse/overvoltage protection)
✅ V. Post-Production Debugging and Maintenance
1. Content Creation
Create curved surface unfolded content according to the tank's proportions to avoid distortion.
Use high-resolution materials (≥2 × screen resolution).
2. Periodic Maintenance
Perform color calibration every six months.
Check for looseness of the module's magnetic structure.
Clean dust and oil from the screen surface (using anhydrous alcohol).
Summary: Key Factors Affecting the Performance of Can-Shaped LED Displays
Structure: Curvature matching, frame precision, seamless splicing
Pixels: Pixel pitch, brightness, contrast ratio, refresh rate, grayscale
Control: Irregular shape mapping, calibration system
Construction: Heat dissipation, power supply, wiring, safety
Maintenance: Calibration, cleaning, content creation and matching