公开(公告)号：US20040051433A1

公开(公告)日：2004-03-18

申请号：US10663152

申请日：2003-09-15

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Kanji Imai ,  Kohji Matsuo ,  Tomohiro Sekiguchi ,  Mitsunori Yokomakura

IPC: H01J001/05 ,  B05D005/12

CPC classification number: B82Y10/00 ,  H01J1/304 ,  H01J9/025 ,  H01J2201/30469 ,  Y10S977/939

Abstract: The invention presents a carbon ink with high electric field emission efficiency that can be applied in an inexpensive printing process suitable for mass production, an improved electron-emitting element for an image display device, and a method for manufacturing the electron-emitting element. The invention also presents an image display device with high image quality and efficiency using this electron-emitting element. The image display device includes a patterned conductor on a substrate, and electron-emitting elements made by applying, to predetermined positions of the conductor, a carbon ink made into a paste with an organic binder and a solvent, the ink comprising (i) carbon particles having a 6-membered carbon ring, and (ii) support particles for supporting the carbon particles, and firing the ink.