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|1. (WO2018199402) CURVED GLASS MANUFACTURING METHOD|
|Applicants:||LG ELECTRONICS INC.
|Title:||CURVED GLASS MANUFACTURING METHOD|
The present invention relates to a curved glass manufacturing method. The present invention provides a curved glass manufacturing method comprising: a first step of successively stacking a lower mold, flat glass, and an upper mold, thereby forming a mold assembly; a second step of moving the mold assembly to a first chamber and then heating the same; a third step of moving the mold assembly from the first chamber to a second chamber and then pressurizing the upper mold so as to move the upper mold downward, thereby molding the flat glass in a curved shape; a fourth step of moving the mold assembly from the second chamber to a third chamber and then slowly cooling the molded glass; and a fifth step of moving the mold assembly from the third chamber to a fourth chamber and then cooling the molded glass. The curved glass manufacturing method is characterized in that an elastic member is arranged between the lower mold and the upper mold so as to move the upper mold away from the flat glass, and the elastic member is compressed when the upper mold is pressurized.