When evaluating transparent LED screens, the most critical factor is the Transparency Rate, which typically ranges from 70% to 95%. Higher transparency is achieved with a larger Pixel Pitch (e.g., P3.91 vs P7.81), but this reduces image resolution. You must also verify the Brightness levels, measured in nits; for indoor window displays facing direct sunlight, a brightness of ≥5000 nits is required, whereas standard indoor environments only need 800–1200 nits. Additionally, ensure the use of High-Refresh Rate ICs (≥3840Hz) to prevent flickering during camera filming or broadcasting.