| 摘要 |
<p>PURPOSE: To eliminate leakage light emission without narrowing the interval between a cathode and an anode by forming an anode line substantially perpendicularly oppositely to a gate line, forming a phosphor in a stripe state in an axial direction, and always setting the potentials of the second gate leading electrode and the anode concentration to a low level. CONSTITUTION: N pieces of gate lines GT11 to in are connected to the first gate leading electrode GT1, and (n+1) pieces of concentrating electrodes GT21 to 2(n+1) are connected to the second gate leading electrode GT2. The gate driving voltage which is always positive at the time of operating is supplied to the electrode GT1, and electrons responsive to image data of one line supplied to cathode lines C1 to Cn are emitted from the field emission cathode FE1 to FEn. At this time, the potential of the second electrode GT2 is always set to a low level. In the case of the gate GT13 as an example, the potentials of the concentrating electrodes GT23, GT24 are set to a low level, and the electrons emitted from the gate line 13 are not diffused but concentrated.</p> |
