Field emission device and operating method for field emission device

A field emission device, comprising:

• a substrate;
• a first electrode formed over the substrate biased at a first voltage level;
• a second electrode formed over the substrate biased at a second voltage level greater than the first voltage level;
• first emitters corresponding to the first electrode for emitting electrons in a direction substantially orthogonal to the normal direction of the substrate;
• and
• second emitters corresponding to the second electrode for receiving electrons emitted from the first emitters.

A field emission device, comprising:

• a first electrode formed on a surface;
• a second electrode formed on substantially the same surface being spaced apart from the first electrode;
• and
• emitters formed on the first electrode and the second electrode for transmitting electrons in a direction substantially orthogonal to the normal direction of the surface.

A field emission device, comprising:

• a substrate;
• a plurality of first electrodes formed over the substrate being biased at a first voltage level;
• a plurality of second electrodes formed over the substrate being biased at a second voltage level different from the first voltage level;
• a plurality of phosphor layers formed over the substrate, each of the plurality of phosphor layers being disposed between one of the plurality of first electrodes and one of the plurality of second electrodes;
• and
• emitters formed on each of the plurality of first electrodes and each of the plurality of second electrodes for transmitting electrons through the plurality of phosphor layers in a direction substantially orthogonal to the normal direction of the substrate.

A field emission device, comprising:

• a substrate;
• a first unit for red light emission formed over the substrate including a first cathode, a first anode and a first phosphor layer disposed between the first cathode and the first anode;
• a second unit for green light emission formed over the substrate including a second cathode, a second anode and a second phosphor layer disposed between the second cathode and the second anode;
• a third unit for blue light emission formed over the substrate including a third cathode, a third anode and a third phosphor layer disposed between the third cathode and the third anode;
• and
• emitters formed on each of the first, second and third cathodes and each of the first, second and third anodes for transmitting electrons through the first, second and third phosphor layers in a direction substantially orthogonal to the normal direction of the substrate.

A method of operating a field emission device, comprising:

• providing a substrate;
• providing a first conductive layer over the substrate;
• providing a second conductive layer over the substrate;
• providing emitters on the first conductive layer and the second conductive layer;
• providing a phosphor layer over the substrate between the first conductive layer and the second conductive layer;
• biasing the first conductive layer at a first voltage level;
• biasing the second conductive layer at a second voltage level different from the first voltage level;
• and
• emitting electrons from one of the first conductive layer or the second conductive layer to the other of the first conductive layer or the second conductive layer through the phosphor layer in a direction substantially orthogonal to the normal direction of the substrate.

A method of operating a field emission device, comprising:

• providing a substrate;
• providing a first electrode over the substrate;
• biasing the first electrode at a first voltage level;
• providing a second electrode over the substrate;
• biasing the second electrode at a second voltage level greater than the first voltage level;
• providing first emitters corresponding to the first electrode;
• providing second emitters corresponding to the second electrode;
• and
• emitting electrons from the first emitters to the second emitters in a direction substantially orthogonal to the normal direction of the substrate.

A method of operating a field emission device, comprising:

• providing a first electrode on a surface;
• providing a second electrode on substantially the same surface being spaced apart from the first electrode;
• providing emitters on the first electrode and the second electrode;
• and
• transmitting electrons in a direction substantially orthogonal to the normal direction of the surface.