Screen resolution or display resolution defines a size of display measured in number of pixels and size of each pixel.
Mainly in digital imaging any resolutions (sensor, image, screen) are measured in pixel count or number of total pixels. For example, when you see in the specification resolution 500 x 582, this means 500 pixels in width and 582 pixels in height. Another measurement you get when you calculate pixels in width and pixels in height – 500 x 582 = 291,000 pixels or 0.29 megapixels.
Pixels size and amount of pixel defines displays resolution. The size of 1 pixel in the display is described by pixels per inch (PPI). The smaller the size of pixel and larger the number of pixels the higher the resolution. The higher resolution, the better the quality of image.
AMOLED display (Pulsar FXQ 38)