5 inch MgAl/sub 2/O/sub 4/ phosphor screen for projection display

摘要

A new kind of MgAl/sub 2/O/sub 4/ phosphor screen for projection display is reported. The 5 inch phosphor screen is fabricated by depositing powder on MgAl/sub 2/O/sub 4/ substrate. Because MgAl/sub 2/O/sub 4/ has the characteristics of higher heat conductivity than the conventional glass faceplate, the phosphor screen achieves very high brightness, good contrast ratio, high resolution and long lifetime, and therefore realises large-screen projection display.