Yes, we are talking about LEDs for “LED displays” only.
Everybody knows the importance of “LEDs” to “LED displays” – it is the source. However, to verify LEDs’ quality is not as easy as to understand the importance. When you perform due diligence to the possible suppliers, you may receive answers such as “14 mil”, “Epistar”, or “Nationstar”. The difficult thing is how do you know their corresponding optical performance and the reliability in long term, the more difficult thing is how do you know if the led display manufacturers really use their claimed one.