A method is provided for in situ cleaning of spacers (42) separating an anode (14) and cathode (12) of a flat panel display (10) in a vacuum by impacting electrons upon the spacers (42).

• 提供了一种通过使电子碰撞到隔离物(42)上而在真空中原位清洁平板显示器(10)的隔开了阳极(14)和阴极(12)的隔离物(42)的方法。