OLED screen has its own advantages such as high contrast and black levels are very deep, but for many problems sharpness of LCD panels that have a very high pixel density. It does have an OLED display that has a high pixel density, as in the Galaxy Nexus (316 pixels per inch), but other than that above 300 ppi display with apparently controlled by the LCD. However, several new components of the Samsung seems to provide the necessary density to make the OLED screen is very sharp up to 350ppi. As an illustration, the 4.2-inch display with 720p resolution will have a pixel density of 350ppi approach. With Fine Metal Mask technology, Samsung is able to integrate it into OLED production line without much trouble, giving hope to those that can immediately apply it to commercial devices. origin source PocketNow
