Multi-chromic lateral field emission devices with associated displays and methods of fabrication
AssigneeInternational Business Machines Corporation
InventorMichael David Potter
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Abstract
Multi-chromic lateral field emission devices ("FEDs") and methods of fabrication are set forth. The multi-chromic FEDs include a phosphor layer disposed substantially perpendicular to an emission surface. Associated with the phosphor layer are multiple emission regions, and associated with each emission region is an emitter and a filter. Operationally, when electrons are transferred from an emitter into the phosphor layer, a light emission is produced from the associated emission region. The associated filter selectively passes desired wavelengths of light. Specific details of the field emission device, an associated display, and fabrication methods are set forth.
Claims8
A field emission device ("FED") for emitting electromagnetic energy comprising:
- a continuous phosphor layer, said continuous phosphor layer having a plurality of emission regions;
- and
- a plurality of lateral emitters, each lateral emitter of said plurality of lateral emitters being separately electrically controllable and extending parallel to an upper surface of a supporting substrate of said FED, and wherein each lateral emitter is associated with a different emission region of said plurality of emission regions, wherein electrons emitted by each lateral emitter into said continuous phosphor layer cause an electromagnetic emission from the associated emission region of said continuous phosphor layer.
A display device comprising a plurality of light emitting field emission structures ("LEFESs"), said plurality of LEFESs being organized in a display matrix, each LEFES of said plurality of LEFESs comprising:
- a continuous phosphor layer, said continuous phosphor layer having a plurality of emission regions;
- and
- a plurality of lateral emitters, each lateral emitter of said plurality of lateral emitters being separately electrically controllable and extending parallel to an upper surface of a supporting substrate of said FED, and wherein each lateral emitter is associated with an emission region of said plurality of emission regions, wherein electrons emitted by each lateral emitter into said continuous phosphor layer cause a light emission from the associated emission region of said continuous phosphor layer.
Dependencies are inferred from the claim text.