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AssigneesAsahi Glass Company, Limited, Mitsui Chemicals, Inc.
InventorsYasushi Mizuta, Akihiro Yamazaki, Yuichi Itou, Yuichi Kuroki, Kenji Ishizeki
Estimating the term…
To provide an envelope for an image display device, a hermetic sealing material and a sealing method, with which sealing is possible at a temperature less than 400° C., sufficient strength is achieved in a high temperature environment, and characteristics will not decrease under high humidity conditions including a high temperature and high humidity atmosphere. An envelope for an image display device, having envelope-constituting members including an image display portion made of glass, sealed with a hermetic sealing material layer, wherein the hermetic sealing material layer includes an organic hermetic sealing material layer obtained by firing an organic hermetic sealing material preferably including a primer layer, a fired body of the organic hermetic sealing material has a viscosity of at least 105 Pa·s within a range of from 200 to 350° C., and preferably the flexural strength after the fired body is left at rest in a constant temperature and constant humidity atmosphere at a temperature of 80° C. in a humidity of 85% for 7 days is at least 90% of the flexural strength before the still standing.
An envelope for an image display device, having envelope-constituting members including an image display portion made of glass, sealed with a hermetic sealing material layer, characterized in that the hermetic sealing material layer comprises an organic hermetic sealing material layer obtained by firing an organic hermetic sealing material, and a fired body of the organic hermetic sealing material has a viscosity of at least 105 Pa·s within a range of from 200 to 350° C.
An envelope for an image display device, characterized in that a sealed portion of envelope-constituting members including an image display portion made of glass is sealed with a hermetic sealing material layer containing a polyimide compound and/or a polyamic acid compound as the main component, and the flexural strength after the sealed portion is left at rest in a constant temperature and constant humidity atmosphere at a temperature of 80° C. in a humidity of 85% for 7 days, is at least 90% of the flexural strength before the still standing.
A hermetic sealing material for an image display device, which is an organic hermetic sealing material to seal envelope-constituting members to constitute an envelope for an image display device, characterized in that a fired body thereof has a viscosity of at least 105 Pa·s within a range of from 200 to 350° C.
A method for sealing an envelope for an image display device, characterized by applying a primer layer-forming material containing an organic metal compound represented by the following Formula (A) and/or its hydrolysate to sealing surfaces of envelope-constituting members, then applying a hermetic sealing material containing a polyimide compound and/or a polyamic acid compound as the main component, or its solution, followed by heating at a temperature of from 250 to 400° C., to solidify the primer layer-forming material and the hermetic sealing material layer-forming material thereby to seal the envelope-constituting members:
Dependencies are inferred from the claim text.