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The Galaxy A54 has a rigid OLED screen. All screens branded as 'Super AMOLED' from Samsung use a rigid substrate. 'Super AMOLED+" and "Dynamic AMOLED" use a flexible substrate.
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Rigid OLED vs Flexible OLED differences:
》**Rigid OLED**
• Uses a glass substrate
• Is cheaper to make
• It is rigid (not flexible)
• Has some colour shift when viewed from an angle (It's not as bad as LCD but worse than Flex OLED)
》**Flexible OLED**
• Uses a plastic substrate
• Is more expensive to make
• It is flexible (used in curved and folding screens)
• Minimal colour shift/Excellent viewing angles
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What you may be experiencing is the colour shift characteristics of the A54's rigid OLED panel.
https://www.reddit.com/r/GalaxyA54/comments/12s7qv5/-/jh5a9lz