Title:
CRYSTALLIZED GLASS SPACER FOR FIELD EMISSION DISPLAY AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/059492
Kind Code:
A1
Abstract:
A crystallized glass spacer for field emission display that suppresses any static electrification by electric field application and has high fracture toughness so as to suppress any chipping or cracking. There is provided a crystallized glass spacer for FED characterized by consisting essentially of, in terms of molar percentage, 20 to 50% of SiO2, 25 to 45% of TiO2, 20 to 50% of MgO+CaO+SrO+BaO+ZnO, 0 to 10% of B2O3+Al2O3 and 0 to 10% of ZrO2 wherein as a main crystal, there is contained at least one crystal selected from among BaXTi8O16 crystal (X=0.8 to 1.5), Ba2TiSi2O8 crystal and TiO2 crystal, as obtained by reduction crystallization heat treatment of SiO2-TiO2 glass in hydrogen, or a mixed atmosphere of hydrogen and nitrogen, at 600° to 900°C.
Inventors:
MIYAZAKI SEIJI (JP)
MAEDA KEI (JP)
MAEDA KEI (JP)
Application Number:
PCT/JP2005/021150
Publication Date:
June 08, 2006
Filing Date:
November 17, 2005
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
MIYAZAKI SEIJI (JP)
MAEDA KEI (JP)
MIYAZAKI SEIJI (JP)
MAEDA KEI (JP)
International Classes:
C03C10/02; C03C10/04; H01J9/24; H01J29/87; H01J31/12
Foreign References:
| JPH02233533A | 1990-09-17 | |||
| JP2004043288A | 2004-02-12 | |||
| JPH07230776A | 1995-08-29 |
Attorney, Agent or Firm:
Senmyo, Kenji (38 Kanda-Higashimatsushitach, Chiyoda-ku Tokyo 42, JP)
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