摘要 |
<p>A durable electron source exhibiting uniform or less varying characteristics is provided. A plurality of row wires (8) intersect with a plurality of column wires (6) on a substrate (1). An electron-emitting element consisting of element electrodes (2, 3), conductive film (4) and an electron emitter (5) is provided at each intersection of the row wires (8) and column wires (6). Getters (9) are arranged on some of the row wires (8). The column wires (6) are connected with regulated current sources (221a, 221b, 221c) capable of supplying desired current. The row wires (8) are connected with voltage source means that includes a voltage source (223) and a switching circuit (222) for selecting the row wires (8) while sequentially scanning them.</p> |