Supporting glass substrate

CN119461834APending Publication Date: 2025-02-18AGC INC
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Patent Information

Application Number
CN202411472733.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2019-07-29
Filing Date
2020-06-05
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

The existing supporting glass substrate is difficult to balance between suppressing deflection and reducing weight. Increased thickness will lead to increased mass, and thinning will easily cause deflection.

Method used

By increasing the ratio (ε/d) of the Young's modulus to density of the supporting glass substrate to 32.0 (GPa·cm3/g) or more, and ensuring that the ratio is greater than the ratio calculated value α calculated based on the composition, the deflection is achieved by ensuring that the ratio is greater than the ratio calculated based on the composition. inhibition and lightening of weight.

Benefits of technology

The goal of effectively suppressing deflection without increasing mass is achieved and the support glass substrate is thinned to achieve the goal of lightening weight.

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Abstract

The present invention achieves the suppression of deflection and light weight. The ratio of the Young's modulus (GPa) to the density (g / cm < 3 >) of the support glass substrate (10) is 37.0 (GPa * cm < 3 > / g) or more and is greater than a ratio calculated value, which is the ratio of the Young's modulus (GPa) to the density (g / cm < 3 >) calculated from the composition. The ratio calculated value is represented by the following formula. Alpha = 2 * sigma {(Vi. Gi) / Mi. Xi}. Here, Vi is the filling parameter of the metal oxide contained in the support glass substrate (10), Gi is the dissociation energy of the metal oxide contained in the support glass substrate (10), Mi is the molecular weight of the metal oxide contained in the support glass substrate (10), and Xi is the molar ratio of the metal oxide contained in the support glass substrate (10).
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Citation Information

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