screen overlay

(computer science) An array of cells on a video display screen that allow a user to command a computer by touching buttons displayed on the screen at the locations of the cells. A window of data that is temporarily displayed on a screen, leaving the original display intact when the window is removed.
(engineering) glare filter

(1) A clear, fine-mesh screen that reduces the glare on a video screen.

(2) A clear touch panel that allows the user to command the computer by touching displayed buttons on screen.

(3) A temporary data window displayed on screen. The part of the screen that was overlaid is saved and restored when the screen overlay is removed.

Download Computer Desktop Encyclopedia to your iPhone/iTouch