When sourcing glass advertising displays (often referred to as transparent LED displays), you must prioritize Transparency Rate, which should ideally be between 70% to 90% to ensure the glass remains functional as a window. Additionally, check the Pixel Pitch (e.g., P3.91-7.81mm); a smaller pitch offers higher resolution for close-up viewing. Ensure the Brightness level is at least 5000-6000 nits for outdoor-facing windows to remain visible under direct sunlight, and verify the use of High-Quality LED lamps (like Nationstar) for color consistency and longevity.