How To Choose The Right Size And Resolution For LED Display – HTT LED

When purchasing a led display, two of the most important factors to consider are screen size and resolution. whether the display is used for stage rental, retail advertising, conference rooms, or outdoor billboards, choosing the right specifications will ensure the best visual performance and return on investment.

1. define the application scenario

different environments require different types of led displays:

• indoor use (conference rooms, exhibition halls): close viewing distance, requires high resolution, common pixel pitch p1.25, p1.86, p2.5.

• outdoor use (billboards, squares): long viewing distance, more focus on brightness and waterproof performance, common pixel pitch p4, p6, p8, p10.

• stage rental & events: need both clarity and flexibility, common pixel pitch p3.91, p4.81, cabinet size 500×500mm or 640×640mm.

2. relationship between viewing distance and pixel pitch

the core principle of resolution selection is matching pixel pitch with viewing distance.

• formula: best viewing distance ≈ pixel pitch (mm) × 1000

  • p2.5 → best distance 2.5m+

  • p4 → best distance 4m+

  • p6 → best distance 6m+

  • p10 → best distance 10m+

the smaller the pixel pitch, the clearer the display when viewed at close range.

3. how to determine led display size

the screen size should be based on installation location, venue size, and audience scale:

• conference room: width 3–5m, height 1.5–3m.

• shopping mall advertising: 4×3m, 6×4m are common sizes.

• stage background: 6×4m, 8×4m, 10×6m depending on stage width.

• outdoor billboards: 12×8m, 16×8m, or larger.

4. how to calculate resolution

the resolution depends on physical size and pixel pitch.

• formula: resolution = (width ÷ pixel pitch) × (height ÷ pixel pitch)

example:

• a p2.5 screen, size 5m × 3m

  • width pixels: 5000 ÷ 2.5 = 2000

  • height pixels: 3000 ÷ 2.5 = 1200

  • resolution: 2000 × 1200

5. practical tips for choosing size & resolution

1. define viewing distance first, then select pixel pitch.

2. choose the screen size based on available space.

3. balance resolution and budget – smaller pixel pitch costs more.

4. avoid overspending on unnecessary ultra-high resolution if not needed.

6. conclusion

to choose the right led display size and resolution, it is essential to consider application scenario, viewing distance, installation environment, and budget. generally, indoor displays require higher resolution, while outdoor displays need larger size and higher brightness. a properly matched size and resolution will maximize performance and ensure a better visual experience.

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