Choosing the right pixel pitch for LED Video Walls requires a balance between clarity and cost. Small pitch (such as P1.5) is suitable for indoor close-up viewing, and large pitch (such as P10) is suitable for outdoor long-distance viewing. Accurately select according to viewing distance, content type and budget to ensure the best display effect and cost performance.
Definition: Pixel pitch refers to the horizontal/vertical distance between the centers of two adjacent LED lamp beads, in millimeters (mm). For example, P1.5 means that the lamp bead pitch is 1.5mm.
Influence:
Clarity: The smaller the pitch, the higher the resolution and the more delicate the picture.
Cost: The smaller the pitch, the more lamp beads per unit area, and the higher the cost.
Visual distance: The larger the pitch, the longer the effective viewing distance.
Core principle: The pixel pitch must match the viewing distance to ensure that the audience can see the details clearly.
Calculation formula:
Minimum viewing distance (meters) ≈ pixel pitch (mm) × 300 ~ 500
Example:
P2 (2mm pitch) → minimum viewing distance is 6m~10m
P1.5 (1.5mm pitch) → minimum viewing distance is 4.5m~7.5m
Application scenarios:
| Scene | Recommended Pixel Pitch | Reason |
|---|---|---|
| Indoor short distance (e.g., conference rooms, shopping malls) | P1.2~P2.5 | Requires high clarity for close-up viewing. |
| Indoor medium distance (e.g., theaters, gymnasiums) | P3~P5 | Balances cost and visual effect for medium viewing distances. |
| Outdoor long distance (e.g., billboards, stadiums) | P10~P20 | Optimized for long-distance visibility with cost efficiency. |
Resolution requirements:
If you need to play 4K content (3840×2160), the screen size and pixel pitch must meet the following requirements:
Screen width (meters) ≈ total number of pixels (horizontally) × pixel pitch (mm) ÷ 1000
Example:
The width of 4K content on a P2 screen ≈ (3840 × 2mm) ÷ 1000 = 7.68 meters
Avoid excessive pixelation: Too small a pitch will not show its advantage when viewed from a distance, but will increase costs.
High-detail content (such as text, graphics): requires a smaller pitch (such as below P1.5).
Simple content (such as advertising slogans, clocks): a larger pitch (such as above P5) can be selected.
Relationship between cost and pitch: For every 0.5mm reduction in pitch, the cost may double.
Recommended strategy:
Indoor: P1.5~P3 is preferred, balancing clarity and cost.
Outdoor: P5~P10 has the best cost performance.
Indoor: High contrast and small pitch (such as P1.2~P2.5) are preferred.
Outdoor: High brightness (≥5000nits), waterproof and dustproof are required, and the pitch is ≥P5.
| Pixel Pitch | Typical Application Scenarios | Cost Reference |
|---|---|---|
| P0.9 | Ultra-high-definition indoor close-range (e.g., control rooms, VR) | Very high (premium) |
| P1.2 | High-end indoor displays (e.g., exhibitions, museums) | High |
| P1.5 | Mall screens, conference rooms | Medium-high |
| P2.5 | Education, general indoor advertising | Medium |
| P3 | Stadiums, theaters | Medium-low |
| P5 | Outdoor billboards, traffic signs | Low |
| P10 | Highway ads, large public squares | Very low |
Measure or estimate the farthest viewing position of the audience (for example: the average distance of the audience of the shopping mall large screen is 5 meters).
Use the formula: pixel pitch ≤ minimum viewing distance ÷ 500
Example: 5 meters viewing distance → 5000mm ÷ 500 = 10mm → Select ≤P10 (but the actual needs need to be combined with content requirements).
Calculate the required resolution:
Resolution (horizontally) ≈ screen width (meters) × 1000 ÷ pixel pitch (mm)
Example: 3-meter wide screen + P2 → 3000mm ÷ 2mm = 1500 pixels
Compare solutions with different pitches and choose the best solution with the best cost performance.
Problem: Small pitch is expensive and has no advantage at long distances.
Solution: Choose according to the actual viewing distance. For example, the effect of P3 is not much different from that of P1.5 at 20 meters.
Problem: High-resolution content needs to match high pixel density.
Solution: When playing 4K content, ensure that the screen width and pixel pitch meet the formula.
Sixth, Summary: Quick Selection Reference Table
| Scene | Recommended Pixel Pitch | Reason |
|---|---|---|
| Indoor Meetings/Malls | P1.5~P2.5 | Close-up viewing requires high clarity. |
| Stadium/Auditorium | P3~P5 | Balances cost and visual effect for medium distances. |
| Outdoor Billboard | P10~P20 | Optimized for long-distance visibility with cost efficiency. |
| Highway Signage | P20~P30 | Designed for extreme long distances and harsh environments. |
To choose the right LED Video Walls, please contact Hengshi Company, which can provide you with high-quality and low-cost products
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