Patent · US Expired

Image display device and manufacturing method for spacer assembly used in image display device

US7042144B2 · kind B2 · utility

4Cited by
2References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 7, 2005
Grant dateMay 9, 2006
Priority date
Expiry dateOct 7, 2025

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J2329/864
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A device includes a first substrate having a phosphor screen and a second substrate opposed to the first substrate across a gap and having a plurality of electron emission sources for exciting the phosphor screen. A spacer assembly for supporting an atmospheric load that acts on the first and second substrates is provided between the substrates. The spacer assembly has a plate-shaped grid and spacers set up on the grid. The volume resistance of the spacers is gradually reduced from the grid side toward the substrate side.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.