I have returned an M4 iPad 13".
Will wait a few months hoping they can minimize the issue to imperceptible range if it's a manufacturing variance and not a design problem.
If its a design problem we will likely not get it resolved until the M5 iPad Pro since Apple does not usually do a mid cycle design modification, case on point the butterfly keyboard were design defects and they get modified only when new models come out. The lowest travel butterfly keyboards on the 2015 and 2016 12" MacBooks, the slightly higher travels butterfly keyboards on the 2017 12"MacBooks (much more durable but still not immune to failures), the updated silicone membrane on the 2018/2019 MBP models (not sure which year it was), and the final ditching of the butterflies on the 2019 MBP 16".
Link to my photos of the iPad in question - > https://forums.macrumors.com/thread...ys-but-it-may-not-be-a-defect.2426655/page-10
Post #226
There are plenty of posts about the Samsung S24 grainy display debacle, even on a high PPI display they can still be as visible as the iPad's low PPI panels. People said it's the new Samsung OLED manufacturing technique or design, whatever thats causing this issue since the S23 did not have that. https://www.reddit.com/r/GalaxyS24Ultra/comments/1aq1795 I have heard theories from anti reflective coating under the glass to the new technique of lowering brightness by using less PWM and more of a voltage DC dimming to achieve higher energy efficiency at the cost of pixel voltage precision. And last I checked the latest reddit posts about the S24 complains the new June batches still have grainy display.
For sure Samsung panels are to be blamed but LG panels could also be exhibiting this issue if they have the same design (ie more voltage dimming instead of PWM). And that some reported that Samsung also manufactures the 13" models in small numbers (not LG exclusive). So I am not sure.
Thanks for reading the long post.
Will wait a few months hoping they can minimize the issue to imperceptible range if it's a manufacturing variance and not a design problem.
If its a design problem we will likely not get it resolved until the M5 iPad Pro since Apple does not usually do a mid cycle design modification, case on point the butterfly keyboard were design defects and they get modified only when new models come out. The lowest travel butterfly keyboards on the 2015 and 2016 12" MacBooks, the slightly higher travels butterfly keyboards on the 2017 12"MacBooks (much more durable but still not immune to failures), the updated silicone membrane on the 2018/2019 MBP models (not sure which year it was), and the final ditching of the butterflies on the 2019 MBP 16".
Link to my photos of the iPad in question - > https://forums.macrumors.com/thread...ys-but-it-may-not-be-a-defect.2426655/page-10
Post #226
There are plenty of posts about the Samsung S24 grainy display debacle, even on a high PPI display they can still be as visible as the iPad's low PPI panels. People said it's the new Samsung OLED manufacturing technique or design, whatever thats causing this issue since the S23 did not have that. https://www.reddit.com/r/GalaxyS24Ultra/comments/1aq1795 I have heard theories from anti reflective coating under the glass to the new technique of lowering brightness by using less PWM and more of a voltage DC dimming to achieve higher energy efficiency at the cost of pixel voltage precision. And last I checked the latest reddit posts about the S24 complains the new June batches still have grainy display.
For sure Samsung panels are to be blamed but LG panels could also be exhibiting this issue if they have the same design (ie more voltage dimming instead of PWM). And that some reported that Samsung also manufactures the 13" models in small numbers (not LG exclusive). So I am not sure.
Thanks for reading the long post.
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