Glossary
AMOLED
Active-Matrix Organic Light-Emitting Diode — the most common OLED variant in smartphones. Each pixel is individually driven by a thin-film transistor, enabling fast switching and rich color.
AMOLED is the dominant OLED implementation in mobile devices. The "active matrix" part refers to the per-pixel TFT backplane that controls current to each OLED, allowing very fast pixel transitions (sub-millisecond) and rich color rendition.
LTPO-AMOLED
A variant using low-temperature polycrystalline oxide TFTs, which support a much wider refresh rate range (1 Hz to 120+ Hz). LTPO panels are what make a 120 Hz phone last as long as a 60 Hz one — the screen drops to 1 Hz for static content.
Versus IPS LCD
- Deeper blacks (true off-state).
- Higher contrast.
- Faster response.
- Better viewing angles.
- Wider color volume.
- Worse outdoor peak full-screen brightness (catching up with LTPO and emitter advances).
- Burn-in risk under static UI.
Where this matters
Categories that use amoled
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