Patent ID: 8008848
Filing Date: 2011-08-30
Classification: H01J

Abstract:
1. A field emitting device comprising: a base substrate; and light emitting units arranged on the base substrate and configured to respectively emit one of at least three lights having different wavelengths from each other, wherein each of the light emitting units comprises: a first electrode arranged on the base substrate; a field emitter arranged on the first electrode; an insulating layer arranged on the first electrode and including an opening to expose the field emitter; a second electrode arranged on the insulating layer to control an operation of the field emitter; a third electrode facing the first electrode and spaced apart from the first electrode to accelerate the electron beam emitted from the field emitter; and a fluorescent layer arranged on a surface of the third electrode, wherein a transmissive area is located between the florescent layers and the third electrodes of two adjacent light emitting units, and wherein an edge of each of the third electrodes of the two adjacent light emitting unit contacts the transmissive area.