Diamond Cold Cathodes for Flat Panel Displays

Period of Performance: 08/20/1993 - 08/20/1995


Phase 2 SBIR

Recipient Firm

Advanced Technology Materials, Inc.
Danbury, CT 06810
Principal Investigator


Low power, rapid turn-on electron surces ar critical to the commercializationof novel flate panel CRT displays. Cold cathodes fabricated from thin film semiconduting diamond promise to robust, manufacturable, low cost, and high performance electron sources. The Phase I growth investigations showed that semiconduction diamond has electron emission properties which makes its incorporation into a cold cathode, and ultimately a flat panel display, both technically feasible and commercially viable. Recognizing that the cathode and its supply of electrons is but one, albeit essential, element of a new display technology, ATM has teamed with flat panel display manufactrers who provide the components to control the electrons and convert them to visible light, as well as provide marketing expertise to sell and distribute the finished product. Our proposed Phase II research and development progbram addresses the optimization of the display and morphology of emissive diamond films, the design of display device structures compatible with the required diamond growth conditions, and the incorporation of a diamond cold cathode in a prototype display. In Phase III, ATM and its partners will address the scale-up and manufacturability of the cathode structures.