What is OLED capacitive touchscreen?
OLED stands for Organic Light Emitting Diode. OLED display contains LED which is comprised of an organic material that emits light when the current is passed through it. It is used to display rich and vibrant colours.
There are quite a lot of phone brand now using OLED capacitive touchscreen technology because it is brighter, cheaper, easily produced, wide field view (up to 170 degree) and it's lighter.
Bright and rich... just like us. Just kidding :)