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References used to create this graphic:
Sirois, Sophie. “How Do Touchscreens Work? A Comprehensive Guide to Interactive Display Technology.” HP Tech Takes. Aug. 27, 2024.
SFA (Oxford). “Critical Minerals in Smartphones.” SFA (Oxford) Knowledge and Insights. Accessed Oct. 12, 2026.
Choi, Myeon-Cheon, Youngkyoo Kim, and Chang-Sik Ha. “Polymers for Flexible Displays: From Material Selection to Device Applications.” Prog. Polym. Sci. (June 2008). DOI: 10.1016/j.progpolymsci.2007.11.004.
Macrelli, Guglielmo, Elisabetta Poli, Airy Cortada, and Alex Viera. “Chemical Strengthening of Silicate Glasses by Ion Exchange: The Role of Alkali Nitrate Salts.” Glass on Web. May 6, 2026.