Investigation of Cathodoluminescent Display Device with Field Emission Cathodes
- 1 September 1993
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 32 (9R) , 3955-3961
- https://doi.org/10.1143/jjap.32.3955
Abstract
The purpose of this paper is to investigate the applicability of field emission (FE) cathode arrays for a cathodoluminescent display device. We proposed a tetrode structure which has a grid inserted between the Mo emitter FE cathode arrays and the anode. The focusing properties of electron beams were measured using the Y2SiO5:Tb phosphor, and a green emission of about 66,700 cd/m2 was achieved at the anode current of about 90 mA/cm2 and the anode voltage of 8 kV in a vacuum chamber kept at 1×10-9 Torr, in which 14,700 Spindt-type cathode tips were used. The experimental results showed that the dispersion of electron beams can be controlled to a considerable extent by the shape, distance and voltage of the grid. An effect of SO2 gas on the emission property of FE cathode arrays was measured, too.Keywords
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