Imported: 24 Feb '17 | Published: 06 Jan '04
USPTO - Utility Patents
A spacer assembly has first and second spacers standing on first and second surfaces of a plate-like grid to be integral with them. First and second molds each with a plurality of through holes are arranged on the first and second surfaces of the grid to be in tight contact with them. After that, the through holes of the molds are filled with a glass paste containing an ultraviolet-curing binder, and the glass paste is cured by irradiation with ultraviolet rays. Furthermore, while the molds are held in a tight contact state, the glass paste is calcined at a predetermined temperature. Thus, the first and second spacers are integrally formed on the grid surfaces.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate an embodiment of the invention, and together with the general description given above and the detailed description of the embodiment given below, serve to explain the principles of the invention.
1. A mold used in a method of manufacturing a spacer assembly having a substrate and a plurality of columnar spacers formed on the substrate and used in a flat panel display apparatus, the method comprising preparing a substrate and a mold having a plurality of stepped tapered through holes each with a diameter that decreases gradually from one end toward the other end thereof; arranging the mold on a surface of the substrate to be in tight contact therewith such that large-diameter sides of the through holes are located on a substrate side; and filling the through holes of the mold with a spacer forming material,
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