摘要 |
A flexible substrate of an aspect of the present invention includes a substrate made of cellulose-based nanofibers and low-melting-point glass deposited inside the substrate by impregnation. A flexible substrate of another aspect of the present invention includes a substrate made of cellulose-based nanofibers and low-melting-point glass joined to one of principal surfaces of the substrate. A glass transition temperature of the low-melting-point glass is equal to or below 300° C. The flexible substrate is optically transparent.
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