Invention Grant
US08080928B2 Electron-emitting device and image display apparatus using the same
失效
电子发射装置和使用其的图像显示装置
- Patent Title: Electron-emitting device and image display apparatus using the same
- Patent Title (中): 电子发射装置和使用其的图像显示装置
-
Application No.: US12209616Application Date: 2008-09-12
-
Publication No.: US08080928B2Publication Date: 2011-12-20
- Inventor: Tamayo Hiroki , Hisanobu Azuma , Jun Iba
- Applicant: Tamayo Hiroki , Hisanobu Azuma , Jun Iba
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2007-242109 20070919
- Main IPC: H01J1/30
- IPC: H01J1/30 ; H01J1/62
Abstract:
A convex portion 2 having a specific sectional shape is formed on a substrate 1 between electrodes 3 and 4, and a gap 6 is formed on a conductive film 5, connecting the electrodes 3 and 4, on the convex portion 2, whereby the distance from the center of the gap 6 serving as a electron-emitting portion to the stagnation point is reduced so as to enhance an electron emission efficiency.
Public/Granted literature
- US20090072697A1 ELECTRON-EMITTING DEVICE AND IMAGE DISPLAY APPARATUS USING THE SAME Public/Granted day:2009-03-19
Information query
