The resolution difference between LED transparent screens and conventional LED displays is essentially determined by their respective technical principles, structural designs, and core application requirements. Conventional LED screens take "high-definition display" as their core objective, while transparent screens need to balance "display performance" and "light transmission performance". As a result, there are significant differences between the two in terms of resolution definition, measurement standards, and actual performance.
Overview of Core Differences：
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Comparison Dimension
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Conventional LED Display
|
LED Transparent Screen
|
| Resolution Definition |
Absolute resolution (total pixels: width × height) |
Relative resolution (balance between pixel density and light transmittance) |
| Core Influencing Factors |
Pixel pitch (P-value), screen size |
Pixel pitch, LED bead density, light transmittance |
| Parameter Expression |
Directly marked with total pixels (e.g., 1920×1080) |
Marked with pixel pitch + light transmittance (e.g., P10.4 - 70% transmittance) |
| Resolution Range |
High (indoor: P0.9 - P2.5, supporting 4K/8K) |
Medium to low (indoor: P3.7 - P10.4, outdoor: P8 - P20) |
| Application Orientation |
Image quality priority (monitoring, cinemas, advertising screens) |
Balance between light transmission and display (curtain walls, shop windows, stages) |
The resolution of conventional LED displays is consistent with that of televisions and monitors, following the logic that "pixel density determines clarity". Each LED bead corresponds to a sub-pixel, and red, green, and blue (RGB) colors form a complete pixel. The more total pixels, the higher the resolution. For example, a P2.5 conventional LED screen with a size of 2m × 1.125m has a resolution of 800×450.
The core requirement of LED transparent screens is "transparency", and they adopt a hollowed-out design (LED beads are attached to a glass substrate or a mesh bracket). Their resolution needs to be balanced with "light transmittance": the higher the light transmittance (the larger the hollowed-out area), the lower the LED bead density, and thus the lower the resolution; conversely, pursuing high resolution will sacrifice light transmittance, losing the core value of "transparency".
"Pixel pitch" is a common key parameter, but its influence weight differs. In conventional LED displays, pixel pitch is the sole core factor determining resolution — the smaller the P-value (e.g., P1.2, P1.5), the denser the pixels, and the finer the image. In high-end indoor scenarios, P0.9 - P1.8 fine-pitch screens are already used to achieve 4K resolution.
In LED transparent screens, pixel pitch needs to be linked with "LED bead arrangement" and "light transmittance": to achieve high light transmittance of over 80%, sparse or diamond-shaped arrangements are often adopted. Even if marked as P5, the actual pixel density may only be equivalent to that of a P8 conventional LED screen; if the pixel pitch is forced to be reduced to P3, the increase in LED beads will reduce the light transmittance to below 50%, losing the advantage of transparency.
Conventional LED screens serve "pure display" scenarios (cinemas, monitoring, advertising). They prioritize reducing the pixel pitch to improve resolution, even at the cost of increased thickness and cost.
LED transparent screens serve scenarios that "require light transmission", so their resolution is usually relatively low: P3 - P6 is used for indoor shop windows (with a light transmittance of 60% - 70%, meeting viewing needs within 1 - 3 meters); P8 - P20 is used for building curtain walls (with a light transmittance of 70% - 90%, which has no impact on long-distance viewing and ensures daylighting); P5 - P10 is used for stage backdrops (balancing light transmission and long-distance display).
The upper limit of the resolution of conventional LED displays is only restricted by technology and cost (e.g., Micro LED can achieve higher density), and theoretically, it can reach near-retina-level display. LED transparent screens have a physical upper limit due to the contradiction between light transmittance and LED bead density — currently, there are very few 4K LED transparent screens, and most of them are small-sized. When the size increases, the resolution will decrease rapidly to maintain light transmittance (for example, a 2m × 1.125m P5 LED transparent screen has a resolution of only 400×225, which is much lower than the 800×450 resolution of a P5 conventional LED screen of the same size).
- For scenarios pursuing high-definition image quality (monitoring, cinemas, meeting rooms): Choose conventional LED screens. Prioritize the pixel pitch (indoor: P1.2 - P2.5, outdoor: P3 - P5), and calculate the resolution using the formula "screen size ÷ pixel pitch".
- For scenarios requiring both light transmission and basic display (curtain walls, shop windows, stages): Choose LED transparent screens. First, determine the light transmittance requirement (over 70% for curtain walls, over 60% for shop windows), then match the corresponding pixel pitch. There is no need to pursue high resolution (long-distance viewing or dynamic content has low requirements for resolution).
- For special scenarios (transparent display cabinets): "Fine-pitch transparent screens" (P2 - P3) can be selected, but it is necessary to accept that the light transmittance will decrease to 50% - 60% and the cost will be relatively high.
The resolution of conventional LED displays is an "absolute indicator", with the core principle of "the denser, the clearer"; the resolution of LED transparent screens is a "relative indicator", with the core principle of "balance between light transmission and display". There is no "competition of being higher or lower" between the two; they are only technical differentiations for different application scenarios — the former is for "seeing clearly", while the latter is for "being visible without blocking".
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