Patent ID: 6087770
Filing Date: 2000-07-11
Classification: H01J

Abstract:
An image forming apparatus comprising:a first substrate comprising a functional element and electric wiring connected to said functional element, said electric wiring being formed of a laminated conductive material by a process that plates a printed pattern, which is initially deposited by a printing process; anda second substrate which defines an area in which an image is formed;said first substrate and said second substrate being located opposed to each other, providing a space between said first substrate and said second substrate which is maintained in a pressure-reduced state;said electric wiring comprising lower wiring that is formed on one side of an insulating layer and upper wiring perpendicular to said lower wiring on a second side of said insulating layer so that said upper wiring is insulated from said lower wiring by said insulating layer, said first substrate further comprising an electron emitter having two element electrodes formed opposite to each other and a thin film, which contains an electron emitting material, wherein(a) one of said two element electrodes is connected to said lower wiring, and the other element electrode is connected to a connection line that is discontinuously formed on said first substrate,(b) said insulating layer is deposited perpendicular to said lower wiring, and the width of said insulating layer is larger at an intersection with said lower wiring than its width at an intersection with said connection line,(c) said upper wiring has a smaller width at an intersection with said lower wiring than the width of said insulating layer thereat, and(d) said upper wiring being electrically connected to said connection line by a lamina of plated wiring that has a greater width than the width of said upper wiring and a smaller width than said lower wiring at the intersection of said plated wiring and said lower wiring.