What Is OLED?

Definition: OLED (Organic Light-Emitting Diode) is a display technology where each individual pixel produces its own light. Unlike LCD screens which require a separate backlight, an OLED pixel switches completely off when showing black β€” producing true blacks and infinite contrast ratio.

Why it matters for your phone repair

When your technician quotes significantly more for an iPhone 13 screen replacement than an iPhone 8, OLED is the reason. Every iPhone from the X (2017) onwards uses an OLED display. Samsung Galaxy S and Z series phones have used OLED since 2010. The panel itself is more expensive to manufacture and source as a replacement part β€” sometimes 2–3x the cost of an equivalent LCD repair.

How OLED works

A standard LCD screen works in layers: a backlight shines white light through a colour filter and liquid crystal layer. OLED is fundamentally different β€” each pixel contains organic compounds that emit light when electricity passes through them. The pixel turns on for colour, and turns completely off for black.

  • True blacks β€” off pixels produce zero light, not dark grey
  • Infinite contrast ratio β€” technically infinite
  • Thinner displays β€” no backlight layer needed
  • Better battery life for dark content β€” black pixels consume no power
  • Wider viewing angles β€” colour accuracy holds better when viewed from the side

Which phones use OLED

iPhone: All models from iPhone X (2017) onwards. iPhone 14 Pro and newer use ProMotion OLED with 120Hz.

Samsung: Galaxy S series, Z Fold, Z Flip, and most Galaxy A series from A52 onwards use AMOLED.

Shareable fact: Dark mode on an OLED phone reduces screen power consumption by up to 40% β€” because black pixels are literally off.

OLED and screen repair β€” what to know in Singapore

Apple pairs OLED displays to the logic board at the factory. A third-party replacement screen restores full functionality, but you may see a β€œnon-genuine screen” notification in Settings. At BreakFixNow, we use high-grade OLED replacement panels that restore full touch and display function.

The main weakness: burn-in

OLED pixels degrade at different rates depending on use. Static elements displayed for extended periods can permanently etch a ghost image into the panel. This is called screen burn-in, and it is irreversible. The only fix is screen replacement.

Common mistakes

  • Assuming all cracked screens cost the same β€” iPhone 11 (LCD) costs significantly less than iPhone 12 (OLED).
  • Choosing the cheapest OLED replacement β€” low-quality panels show colour shifting, reduced brightness, and yellow tinting.
  • Ignoring early burn-in β€” faint ghost images won’t improve on their own. Reducing brightness and enabling dark mode slows degradation.

Related terms

  • LCD β€” the older, simpler display technology OLED replaced in flagship phones
  • AMOLED β€” Samsung’s more advanced Active Matrix OLED variant
  • Screen Burn-In β€” the main long-term weakness of OLED displays
  • Digitiser β€” the touch layer that sits on top of the OLED panel
  • Dead Pixel β€” individual OLED pixel failure

Further reading

Need an OLED screen replacement in Singapore?
BreakFixNow repairs OLED screens for all iPhone and Samsung models. Same-day service, 90-day warranty, no fix no fee.

iPhone screen repair β†’    Samsung screen repair β†’

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