Question

To my knowledge, compared to oled, elqd displays will be very cheap to mass produce using ink jet printing process. Quantum dots can have very narrow FWHM which allows displays to have wider color gamut of >90% rec2020. The response times of quantum dots are also faster than oled. Most importantly, it is also self-emissive like OLED.

However, one of the biggest concerns I have is if it suffers the same burn-in effect like OLED. To my knowledge, the challenge of commercializing ELQD displays is that the lifetime of the blue emitter currently only lasts a couple of hours at 1000 nits. However, I'm not sure if the term burn-in is separate from lifetime. In an OLED display, when a static logo is shown for a really long time without any burn-in compensation technologies, the logo will burn in and the respective pixels will permanently shift colors which is very noticeable. I wonder if the same occurs with ELQD displays. In addition, I have also read somewhere that quantum dots are also not truly inorganic materials because the ligands are organic.

Answer 1

ELQD displays, also known as quantum dot displays, have several advantages over OLED displays, such as wider color gamut and faster response times. The issue of burn-in in ELQD displays is separate from the lifetime of the blue emitter. Quantum dots are mostly inorganic, but their ligands are organic.

Step-by-step explanation:

ELQD displays, also known as quantum dot displays, have several advantages compared to OLED displays. Quantum dots can produce a wider color gamut and have faster response times than OLED. They are also self-emissive, like OLED, meaning they do not require a separate light source. However, one concern with ELQD displays is the lifetime of the blue emitter, which currently lasts only a couple of hours at 1000 nits. This is separate from the issue of burn-in, which refers to a static image causing permanent discoloration of the pixels in an OLED display. It is not clear if ELQD displays suffer from the same burn-in effect. Additionally, while most of the quantum dot materials are considered inorganic, the ligands, which help stabilize the quantum dots, are organic.