Field emission display devices

A cathodoluminescent field emission display device, which comprises:

• a faceplate through which emitted light is transmitted from an inside surface to an outside surface of the faceplate for viewing;
• a cathode emitter, for primary field emissions of electrons;
• an anode, comprising a layer of electrically conductive material disposed between the inside surface of the faceplate and the cathode emitter;
• a light emitter layer of cathodoluminescent material capable of emitting light through the faceplate in response to bombardment by electrons emitted within the device, disposed between the anode and the cathode emitter;
• a biasing electrode, comprising a layer of electrically conductive material penetrable by electrons emitted within the device and capable of producing secondary emissions of electrons when bombarded by electrons within the device, the biasing electrode disposed between the cathode emitter and the light emitter layer;
• a biasing voltage source, coupled across the anode and the biasing electrode, for applying a bias voltage across the light emitter layer;
• and
• a barrier layer disposed between the light emitter layer and the anode to inhibit deposition of anode material on the emitter layer.

A cathodoluminescent field emission display device, which comprises:

• a faceplate through which emitted light is transmitted from an inside surface to an outside surface of the faceplate for viewing;
• a cathode emitter, for primary field emissions of electrons;
• an anode, comprising a layer of electrically conductive material disposed between the inside surface of the faceplate and the cathode emitter;
• a light emitter layer of cathodoluminescent material capable of emitting light through the faceplate in response to bombardment by electrons emitted within the device, disposed between the anode and the cathode emitter;
• a biasing electrode, comprising a layer of electrically conductive material penetrable by electrons emitted within the device and disposed between the cathode emitter and the light emitter layer;
• a biasing voltage source, coupled across the anode and the biasing electrode, for supplying a bias voltage across the emitter layer;
• and
• a barrier layer disposed between the light emitter layer and the anode to inhibit ion flow.

A cathodoluminescent field emission display device, which comprises:

• a faceplate through which emitted light is transmitted from an inside surface to an outside surface of the faceplate for viewing;
• a cathode emitter, for primary field emissions of electrons;
• an anode, comprising a layer of electrically conductive material disposed between the inside surface of the faceplate and the cathode emitter;
• a light emitter layer of cathodoluminescent material capable of emitting light through the faceplate in response to bombardment by electrons emitted within the device, disposed between the anode and the cathode emitter;
• a biasing electrode, comprising a layer of electrically conductive material penetrable by electrons emitted within the device and disposed between the cathode emitter and the light emitter layer;
• a biasing voltage source, coupled across the anode and the biasing electrode, for applying a bias voltage across the light emitter layer;
• and
• a barrier layer disposed between the light emitter layer and the anode to inhibit deposition of anode material on the emitter layer.

A cathodoluminescent field emission display device, which comprises:

• a faceplate through which emitted light is transmitted from an inside surface to an outside surface of the faceplate for viewing;
• a cathode emitter for primary field emissions of electrons;
• an anode, comprising a layer of electrically conductive material disposed between the inside surface of the faceplate and the cathode emitter;
• a light emitter layer of cathodoluminescent material capable of emitting light through the faceplate in response to bombardment by electrons emitted within the device, disposed between the anode and the cathode emitter;
• an amplification layer disposed between the light emitter layer and the cathode emitter for producing secondary emissions of electrons when bombarded by electrons within the device;
• and
• a first barrier layer disposed between the light emitter layer and the anode to inhibit ion flow.

A cathodoluminescent field emission display device, which comprises:

• a faceplate through which emitted light is transmitted from an inside surface to an outside surface of the faceplate for viewing;
• a cathode emitter for primary field emissions of electrons;
• an anode, comprising a layer of electrically conductive material disposed between the inside surface of the faceplate and the cathode emitter;
• a light emitter layer of cathodoluminescent material capable of emitting light through the faceplate in response to bombardment by electrons emitted within the device, disposed between the anode and the cathode emitter;
• an amplification layer disposed between the light emitter layer and the cathode emitter for producing secondary emissions of electrons when bombarded by electrons within the device;
• and
• a first barrier layer disposed between the light emitter layer and the anode to inhibit deposition of anode material on the light emitter layer.

A cathodoluminescent field emission display device, which comprises:

• a faceplate through which emitted light is transmitted from an inside surface to an outside surface of the faceplate for viewing;
• a cathode emitter for primary field emission of electrons;
• an anode comprising a layer of electrically conductive material disposed between the inside surface of the faceplate and the cathode emitter;
• a light emitter layer of cathodoluminescent material capable of emitting light through the faceplate in response to bombardment by electrons emitted within the device, disposed between the anode and the cathode emitter;
• and
• a first barrier layer disposed between the light emitter layer and the anode to inhibit ion flow.

A cathodoluminescent field emission display device which comprises:

• a faceplate through which light is transmitted from an inside surface to an outside surface of the faceplate for viewing;
• a cathode emitter for primary field emission of electrons;
• an anode comprising a layer of electrically conductive material disposed between the inside surface of the faceplate and the cathode emitter;
• a light emitter layer of cathodoluminescent material, capable of emitting light through the faceplate in response to bombardment by electrons emitted within the device, disposed between the anode and the cathode emitter;
• and
• a first barrier layer disposed between the light emitter layer and the anode to inhibit deposition of anode material on the light emitter layer.