Composition for forming electron emission source, electron emission source including the composition, method of preparing the electron emission source, and field emission device including the electron emission source
AssigneeSamsung Electronics Co., Ltd.
InventorsYong-chul Kim, In-taek Han, Ho-suk Kang
Life of this patent
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Abstract
An electron emission source includes nano-sized acicular materials and a cracked portion formed in at least one portion of the electron emission source. The acicular materials are exposed between inner walls of the cracked portion. A method for preparing the electron emission source, a field emission device including the electron emission source, and a composition for forming the electron emission source are also provided in the present invention.
Claims19
A composition for forming an electron emission source, comprising:
- an acicular material;
- an oligomer;
- the oligomer being a urethane acrylate oligomer;
- a crosslinkable monomer;
- where the crosslinkable monomer is a bifunctional acrylate or a higher functional acrylate than a bifunctional acrylate;
- an initiator;
- and
- a solvent, with the amount of the crosslinkable monomer being in the range of about 5 to about 50 parts by weight based on 100 parts by weight of the oligomer.
A composition for forming an electron emission source, comprising:
- an acicular material;
- an oligomer;
- a crosslinkable monomer;
- where the crosslinkable monomer is a bifunctional acrylate or a higher functional acrylate than a bifunctional acrylate;
- an initiator;
- and
- a solvent, with the amount of the crosslinkable monomer being in the range of about 5 to about 50 parts by weight based on 100 parts by weight of the oligomer.
A composition for forming an electron emission source, comprising:
- an acicular material;
- an oligomer;
- the oligomer being a urethane acrylate oligomer or epoxy acrylate oligomer;
- a crosslinkable monomer;
- the crosslinkable monomer being propane-1,3-diol-2,2-bis (hydroxymethyl) triacrylate (penta-erythritol tri-acrylate, PETIA), or trimethylolpropane triacrylate (TMPTA);
- an initiator;
- and
- a solvent, with the amount of the initiator being not less than 5 parts by weight based on 100 parts by weight of the oligomer;
- and with the amount of the crosslinkable monomer being in the range of about 5 to about 50 parts by weight based on 100 parts by weight of the oligomer.
Dependencies are inferred from the claim text.