High modulus glass, protective film, cover plate layer, display module and electronic device

By adjusting the glass composition and processing methods, the elastic modulus of the glass was improved, solving the problem of insufficient stiffness in existing glass and enabling the application of high-stiffness and high-toughness glass, suitable for the housing of electronic devices and the cover layer of display modules.

CN122145033APending Publication Date: 2026-06-05HUAWEI TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Filing Date
2024-12-05
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The low elastic modulus of existing glass results in the glass structure's stiffness failing to meet usage requirements, especially in flexible display modules where creases and poor flatness are prone to occur.

Method used

By limiting the specific components and contents of the glass, especially the molar percentages of SiO2, Al2O3, Y2O3, ZrO2, TiO2, etc., the elastic modulus of the glass can be increased. Furthermore, by adding components such as B2O3 and K2O, the fracture toughness can be improved, and ion exchange strengthening treatment can be carried out to form a glass with high stiffness.

Benefits of technology

The elastic modulus of the glass was increased to over 130 GPa, which enhanced the rigidity of the glass structure, improved the flatness and impact resistance of the flexible display module, and reduced the visibility of creases.

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Abstract

The application relates to the field of glass, and relates to a high-modulus glass, a protective film, a cover plate layer, a display module and an electronic device. The glass comprises, expressed in terms of mole percentage, 35%-60% of SiO2, 5%-35% of Al2O3, 2%-18% of (Y2O3+Yb2O3), 1%-5% of (ZrO2+TiO2) and 1%-5% of (MgO+SrO+ZnO); and (Y2O3+Yb2O3) / (SiO2+Al2O3) is 0.02-0.33. The glass has a high elastic modulus, and the rigidity of a structure processed from the glass can be improved.
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