Patent ID: 8294351

Claim:
A matrix-type cold-cathode electron source device comprising: a cold-cathode electron source array in which cold-cathode electron source elements with multiple emitters for emitting electrons are arranged in a matrix with a first pitch; a mesh structure opposed to the cold-cathode electron source array and having through-holes arranged with the first pitch; a target opposed to the cold-cathode electron source array via the mesh structure and set at a position colliding with electron beams emitted from the cold-cathode electron source array and passed through the through-holes of the mesh structure; and drive portions that drive the mesh structure in a first alignment direction and a second alignment direction of the through-hole, wherein the target has a transparent conductive film as an anode and a photoelectric conversion film formed at the side of the mesh structure of the transparent conductive film, and the drive portions drive the mesh structure a distance up to the first pitch in the first and second alignment directions in increments of (1/N) (N is an integer of at least 2) of the first pitch.