Screen Size & Resolution
If you are looking for a small sized display with high resolution, an LED Display may not be ideal. While a single OLED Display or Commercial TV can provide resolutions of up to 4K, and LED display will need to be much larger to achieve the required resolution.
If the size is not an issue but and you require a large image surface, LED displays allows you to obtain any required resolution by choosing one of the many pixel pitch options available.