Display screen comprising a source of electrons with microtips, capable of being observed through the microtip support, and method for making this source

摘要

PCT No. PCT/FR97/02216 Sec. 371 Date Jun. 7, 1999 Sec. 102(e) Date Jun. 7, 1999 PCT Filed Dec. 5, 1997 PCT Pub. No. WO98/25291 PCT Pub. Date Jun. 11, 1998A display screen which includes a microtip electron source which is observerable through the microtip support. The screen includes a cathodoluminescent anode, transparent support and cathode conductors formed on the support. The conductors are meshed according to a first pattern which includes openings. A resistive layer formed on the support is meshed according to a second pattern and includes solid areas located in the openings of the first pattern. Microtips are formed on the solid areas. Grids are meshed according to the second pattern in an unmeshed insulating layer which is transparent and extends above the cathode conductors and the resistive layer in between them and the grids.