Screen lag, sometimes also called input lag or display lag, refers to a delay between the time a video input (such as a cable box, DVD player or games console) issues an instruction to a television to display a particular image and that image appearing on screen. It is primarily caused by the need for modern screens, which have a fixed number of pixels, to adjust the incoming signal to fit the “grid” of pixels. Other key causes include the TV having to create artificial images if the input signal doesn’t match the TV’s display rate (the number of times the image is redrawn per second), and the TV adjusting the picture to improve the color balance or contrast. Writer Bio
