| US 7,537,505 B2 | ||
| Manufacturing method for field emission display | ||
| Tetsuya Shiroishi, Tokyo (Japan); Akihiko Hosono, Tokyo (Japan); Shuhei Nakata, Tokyo (Japan); Yoshihito Imai, Tokyo (Japan); and Takaaki Iwata, Tokyo (Japan) | ||
| Assigned to Mitsubishi Denki Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Mar. 23, 2005, as Appl. No. 11/86,418. | ||
| Claims priority of application No. 2004-087537 (JP), filed on Mar. 24, 2004; application No. 2004-142661 (JP), filed on May 12, 2004; and application No. 2005-062496 (JP), filed on Mar. 07, 2005. | ||
| Prior Publication US 2005/0221710 A1, Oct. 06, 2005 | ||
| Int. Cl. H01J 9/12 (2006.01); H01J 1/62 (2006.01) | ||
| U.S. Cl. 445—50 [445/49; 313/495] | 11 Claims |
| 1. A method of manufacturing a field emission display which comprises a cathode substrate and a fluorescent screen glass opposed
to the cathode substrate, and emits light when an electron emitted from a carbon nanotube printed layer containing a carbon
nanotube of the cathode electrode enters a fluorescent material of the fluorescent screen glass, the method comprising:
irradiating a surface of the carbon nanotube printed layer with a laser beam to form a carbon nanotube raised area; and
spatially modulating the energy density within the laser beam while irradiating the surface of the carbon nanotube printed
layer, wherein the spatially modulating includes
irradiating a first portion of the surface of the carbon nanotube printed layer with an energy density equal to or higher
than a threshold value to form the carbon nanotube raised area, and
irradiating a second portion of the surface of the carbon nanotube printed layer with an energy density lower than the threshold
value to raise the carbon nanotube.
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