Here is a nice explanation of IPS LCD, Amoled and OLED type of display used on mobile phones these days. You may have listened these terms from others or when you thought of purchasing mobiles.

Here you can read it in detail so that these terms can make you more sense then just a kind of display used in mobiles.

Liquid Crystal Display (LCD):
- TFT LCD
- IPS LCD

Advantage and Disadvantage of LCD:

Advantages

Comparatively better display under direct sunlight
Consistent consumption of power, not affected by color on the display.
Disadvantages

Blacks tend to appear gray, lack of contrast
Comparatively lower picture quality

Organic Light Emitting Diode (OLED):
- PMOLED
- AMOLED

Advantage and Disadvantage of OLED:

Advantages

Thinner and more flexible than LCD displays
Faster refresh rate
No restriction on size of display
Higher contrast ratio
Consumes less power when darker colors are displayed
Disadvantages

No backlight hence poor display under direct sunlight
Consumes more power when brighter colors are displayed
Organic material is used hence it has a shorter lifetime


LCD vs. OLED vs. AMOLED: Difference Explained
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