| United States Patent | 7,365,482 |
| Ryu , et al. | April 29, 2008 |
Field emission display including electron emission source formed in multi-layer structure
A field emission display includes first and second substrates provided opposing one another with a predetermined gap therebetween; electron emission sources provided on one of the first and second substrates; an electron emission inducing assembly for inducing the emission of electrons from the electron emission sources; and an illuminating assembly provided on the substrate on which the electron emission sources are not formed, the illuminating assembly realizing images by the emission of electrons from the electron emission sources. The electron emission sources include a carbon nanotube layer and a base layer, the base layer connecting the carbon nanotube layer to the substrate and applying a voltage to the carbon nanotube layer required for the emission of electrons. Also, the carbon nanotube layer is provided on the base layer in a state substantially un-mixed with the base layer.
| Inventors: | Ryu; Mee-Ae (Suwon, KR), Kim; Hun-Young (Seoul, KR), Nam; Joong-Woo (Suwon, KR) |
| Assignee: | Samsung SDI Co., Ltd. (Suwon-si, Gyeonggi-do, KR) |
| Appl. No.: | 10/684,520 |
| Filed: | October 15, 2003 |
What is claimed is:
1. A field emission display, comprising: first and second substrates provided opposing one another with a predetermined gap therebetween to form a vacuum assembly; electron emission sources provided on one of the first and second substrates; an electron emission inducing assembly inducing the emission of electrons from the electron emission sources; and an illuminating assembly provided on the other one of the first and second substrates not including the electron emission sources being formed, the illuminating assembly realizing images by the emission of electrons from the electron emission sources, with the electron emission sources including a carbon nanotube layer and a base layer, said base layer having an outer surface that includes prominences and depressions, the base layer formed between the carbon nanotube layer and the one of the first and second substrates on which the electron emission sources are provided and having conductibility for applying a voltage to the carbon nanotube layer required for the emission of electrons, the carbon nanotube layer comprising a plurality of carbon nanotubes, and with the base layer having a predetermined thickness, and the carbon nanotube layer being provided on the base layer in a state substantially un-mixed with the base layer, the carbon nanotubes formed on both of the prominences and the depressions, wherein the base layer comprises: an adhesive material realized through a glass frit that selected from the group consisting of PbO, SiO.sub.2, Ba.sub.2O.sub.3, and a mixture thereof; and a metal conductive material selected from the group consisting of silver, copper, and aluminum.
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