Method and system for preparing curved glass plate, glass cover plate and electronic device

Abstract

The invention discloses a method and a system for preparing a curved glass plate, a glass cover plate and electronic equipment. The method comprises: placing a planar glass prefabricated plate in a forming mold and fixing it, forming a first airtight cavity between the first mold and the glass prefabricated plate, and forming an airtight cavity between the second mold and the glass prefabricated plate The second cavity of the second cavity; the molding medium is passed into the first cavity and the second cavity, and the pressure in the first cavity is kept to match the pressure in the second cavity, heating the glass prefabricated plate; forming a pressure difference between the first cavity and the second cavity, so that the glass prefabricated plate is attached to the second mold to form the curved glass sheet. The method realizes the preparation of the plate through the pressure difference of the forming medium on both sides of the glass prefabricated plate. During the forming process, the vacuum degree on both sides of the prefabricated plate can be accurately controlled, the requirements for the forming mold are also low, and the process of controlling the vacuum degree is also simpler.

Description

technical field [0001] The invention relates to the field of electronic equipment, in particular to a method and system for preparing a curved glass plate, a glass cover and electronic equipment. Background technique [0002] The current curved glass sheets, especially the curved glass sheets used for mobile phone and other electronic equipment covers (TP cover and battery cover), are mostly made of flat sheets through hot bending and other forming processes to form sheets with curved surfaces. At present, the methods of forming curved glass sheets are mostly through bending with rigid graphite molds under hot conditions, or through single-side vacuuming in the molds and forming under atmospheric pressure. Among them, the precision of the glass plate prepared by mold bending cannot be guaranteed, and the appearance has defects such as orange lines, bumps and indentations. However, the method of evacuating on one side has higher requirements on the mold and process. [0003...

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Problems solved by technology

[0003] Therefore, the current methods and systems for preparing curved glass sheets, glass cover plates and electronic devices still need to be improved.

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