Electron emitting device, method of producing the same, and method of driving the same; and image display comprising the electron emitting device and method of producing the same

A method for producing an electron emitting device, comprising the steps of:

• forming an electron transporting member on a substrate;
• and
• providing an electron emitting member in contact with the electron transporting member with an electric field concentration region interposed therebetween, wherein the step of providing the electron emitting member includes the steps of:
• causing a mixture of a liquid curable insulating substance and prescribed particles to adhere to a conductive layer acting as the electron transporting member,
• curing the liquid curable insulating substance, and
• selectively removing only a surface portion of the curing insulating substance to expose a portion of the particles included in the mixture, thereby causing the exposed portion of the particles to act as the electron emitting member.

A method for producing an electron emitting device, comprising the steps of:

• forming an electron transporting member on a substrate;
• and
• providing an electron emitting member in contact with the electron transporting member with an electric field concentration region interposed therebetween;
• wherein the step of providing the electron emitting member includes the steps of:
• forming an insulating layer acting as the electric field concentration region on a surface of particles acting as the electron emitting member,
• providing the substrate having a conductive layer acting as the electron transporting member formed thereon in a solution containing particles dispersed therein, and
• applying ultrasonic vibration to the solution to cause the particles in the solution to adhere to the conductive layer.

A method for producing an electron emitting device, comprising the steps of:

• forming an electron transporting member on a substrate;
• and
• providing an electron emitting member in contact with the electron transporting member with an electric field concentration region interposed therebetween;
• wherein the step of providing the electron emitting member includes the steps of:
• forming an insulating layer acting as the electric field concentration region on a surface of particles acting as the electron emitting member, and
• applying a solution containing particles dispersed therein to the conductive layer acting as the electron transporting member to cause the particles to adhere to the insulating layer.

A method for producing an electron emitting device, comprising the steps of:

• forming an electron transporting member on a substrate;
• and
• providing an electron emitting member in contact with the electron transporting member with an electric field concentration region interposed therebetween;
• wherein the step of providing the electron emitting member includes the steps of:
• forming an insulating layer acting as the electric field concentration region on a surface of particles acting as the electron emitting member, and
• using an electrophoresis process using a solution containing the particles dispersed therein to cause the particles to adhere to a conductive layer acting as the electron transporting member.

A method for producing an electron emitting device, comprising the steps of:

• forming an electron transporting member on a substrate;
• providing an electron emitting member in contact with the electron transporting member with an electric field concentration region interposed therebetween;
• and
• roughening a surface of the electron transporting member, wherein the step of roughening the surface of the electron transporting member includes the step of forming a conductive layer acting as the electron transporting member by a thermal spraying technique.

A method for producing an electron emitting device, comprising the steps of:

• forming an electron transporting member on a substrate,
• providing an electron emitting member in contact with the electron transporting member with an electric field concentration region interposed therebetween;
• and
• roughening a surface of the electron transporting member, wherein the step of roughening the surface of the electron transporting member includes the step of roughening a surface of the substrate, wherein the electron transporting member is formed on the roughened surface of the substrate.

A method for producing an electron emitting device, comprising the steps of:

• forming an electron transporting member on a substrate;
• and
• providing an electron emitting member in contact with the electron transporting member with an electric field concentration region interposed therebetween;
• wherein at least one of the electron transporting member and the electron emitting member is a diamond thin film grown by a vapor phase growth technique, the method comprising the step of distributing diamond growth nuclei having a distribution density of 1×1010/cm2 or more as a pre-vapor phase technique.