Delta Gun Shadow Mask Color Cathode Ray Tube
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
Normally the green, red and blue phosphor dots of a delta-gun shadow mask color cathode ray tube (CRT) are of equal size. Since green phosphor is more efficient in long and short persistence than the red or blue phosphors, the 'green' gun of the CRT is normally under-run to obtain a standard white.