iPad Pro Delays Could Be Down to Poor OLED Panel Production Yields

[EugW]

Same thing everyone was saying about qd Oled and as I said before they are not more resistant to burn in.

Everyone saying QD OLED had better burn-in resistance? That's not what I had read. Perhaps Samsung suggested that in some ads I dunno, but that wasn't listed as a key advantage from other sources I saw.

The other point to note is that dual-stack OLED already exists, and has existed for years. The problem with dual-stack OLED in the past hasn't been its longevity. It has been the cost. It previously has been a low volume product at high price, which is why nobody used it outside of niche applications.

 

[kristof461]

Everyone saying QD OLED had better burn-in resistance? That's not what I had read. Perhaps Samsung suggested that in some ads I dunno, but that wasn't listed as a key advantage from other sources I saw.

The other point to note is that dual-stack OLED already exists, and has existed for years. The problem with dual-stack OLED in the past hasn't been its longevity. It has been the cost. It previously has been a low volume product at high price, which is why nobody used it outside of niche applications.

so what is your source which says that double layer will be more resistant to burn in? I’ve read tons of articles opinion etc about TVs and there were so many theories that qd Oled will be more resistant to burn in.
You said dual Oled exists. Yes but tell me device which uses that type of Oled. If I am right one of the Honor smartphone. That’s it.
That’s why I am not going to buy first models. That’s my opinion. You can of course have yours.

 

[EugW]

so what is your source which says that double layer will be more resistant to burn in? I’ve read tons of articles opinion etc about TVs and there were so many theories that qd Oled will be more resistant to burn in.
You said dual Oled exists. Yes but tell me device which uses that type of Oled. If I am right one of the Honor smartphone. That’s it.

Your scope of investigation is too limited. Dual-stack OLED is used for example for some car infotainment displays and instrument panels.

Anyhow, the relationship between power usage and brightness is not linear for OLED. OLED efficiency suffers at high brightness. Dual-stack and multi-stack OLED addresses this problem by running dual/multi OLED layers at lower brightness where they are much more efficient, lowering power usage and heat generation, thereby increasing burn-in resistance.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7788592/

This has been described in many tech articles, including right here at MacRumors:

OLED iPad and MacBook Rumored to Feature Specialized Display Materials

Future iPad Pro and MacBook models equipped with OLED panels will adopt new, specialized display materials, The Elec reports. Apple has apparently...

www.macrumors.com

"The two-stack OLED design can generate the same brightness levels as its single-stack counterparts, but with significantly reduced power consumption and extended lifespan."

 

[kristof461]

Your scope of investigation is too limited. Dual-stack OLED is used for example for some car infotainment displays and instrument panels.

Anyhow, the relationship between power usage and brightness is not linear for OLED. OLED efficiency suffers at high brightness. Dual-stack and multi-stack OLED addresses this problem by running dual/multi OLED layers at lower brightness where they are much more efficient, lowering power usage and heat generation, thereby increasing burn-in resistance.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7788592/

This has been described in many tech articles, including right here at MacRumors:

OLED iPad and MacBook Rumored to Feature Specialized Display Materials

Future iPad Pro and MacBook models equipped with OLED panels will adopt new, specialized display materials, The Elec reports. Apple has apparently...

www.macrumors.com

"The two-stack OLED design can generate the same brightness levels as its single-stack counterparts, but with significantly reduced power consumption and extended lifespan."

Fair enough. Still Oled for mobile device isn’t so necessary thing imo