Patent ID: 6184619
Filing Date: 2001-02-06
Classification: H01J

Abstract:
An electron apparatus comprising:a rear substrate having an electron-emitting device;a front substrate having a member to be irradiated with electrons; anda support member for maintaining an interval between said rear substrate and said front substrate,wherein an electric field for accelerating electrons from said rear substrate toward said front substrate is applied, a surface of said support member has a first region with a length d1 from a portion connected to said rear substrate and a resistance R1 per unit length in a longitudinal direction, a third region with a length d3 from a portion connected to said front substrate and a resistance R3 per unit length in the longitudinal direction, with the third region being extended along an edge connected to the front substance, and a second region which is sandwiched between the first and third regions and has a resistance R2 per unit length in the longitudinal direction, both R1 and R3 are lower than R2, and the lengths and resistances of the first and third regions satisfy at least either one of the following conditions:a) d1<d3b) R1>R3.