METHOD FOR PRODUCING COVER GLASS FOR ELECTRONIC APPLIANCE, AND HOLDER FOR GLASS SUBSTRATE FOR COVER GLASS FOR ELECTRONIC APPLIANCE

PROBLEM TO BE SOLVED: To provide a method for producing a cover glass for electronic appliances, which can suppress variation in the flatness of a glass substrate after chemical strengthening, and to provide a holder for a glass substrate.SOLUTION: The method for producing a cover glass for electron...

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Bibliographische Detailangaben
Hauptverfasser:	TAKANO TETSUAKI, SHIBUI MASATOMO, CHIWATA TAKESHI, GOTO TOMOYUKI, HASHIMOTO KAZUAKI
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS LABELS OR NAME-PLATES METALLURGY MINERAL OR SLAG WOOL PHYSICS SEALS SIGNS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for producing a cover glass for electronic appliances, which can suppress variation in the flatness of a glass substrate after chemical strengthening, and to provide a holder for a glass substrate.SOLUTION: The method for producing a cover glass for electronic appliances is characterized by including a chemical strengthening step in which a quadrilateral glass substrate 100 is immersed in a chemical strengthening liquid obtained by heating and melting a salt for chemical strengthening to thereby chemically strengthen the glass substrate, and a cooling step in which the glass substrate after the chemical strengthening step is taken out of the chemical strengthening liquid and then the temperature of the glass substrate is lowered. The method is further characterized in that in the cooling step, the chemical strengthening liquid is removed from the surfaces of the glass substrate in order to prevent the liquid from solidifying on the glass substrate surfaces.