The screen size is measured in inches (in). It's measured diagonally from corner to corner on the screen. Please note that the effective viewing area is important (excluding the frame).
The number of pixels horizontally and vertically defines a TV's resolution in pixels or dots per inch (ppi or dpi). The greater the resolution, the more information or image you'll be able to view at once.
1920 x 1080
Response time is measured in milli-seconds (ms) and represents the time it takes for one pixel to go from active (black) to inactive (white) and back again. Needed to adapt to the constantly changing image on the screen. The lower, the better.