Patent ID: 7839070

Claim:
A lateral field emission device, comprising: an insulating substrate; a plurality of pixels arranged on an upper surface of said insulating substrate in array, and each of said pixels including: a fluorescent powder layer provided on the upper surface of said insulating substrate; a cathode provided on the upper surface of said insulating substrate adjacent to one side of said fluorescent powder layer; and an anode provided on the upper surface of said insulating substrate adjacent to another side of said fluorescent powder layer opposite to said cathode, wherein said fluorescent powder layer is provided between and spaced from said cathode and said anode so that electrons at said cathode are excited to directly penetrate said fluorescent powder layer and then move toward said anode in a direction substantially parallel to the surface of said insulating substrate; and a top substrate provided above said pixels; and a spacer clamped between said top substrate and said insulating substrate to together with said two substrates define a vacuum space for enclosing said pixels therein.