Xiaomi previously applied for a large number of patents for the appearance of Xiaomi Folding Screen mobile phones, which were published on January 1, 2021. Foreign media LetsGoDigital dug up 7 design patents, these patents cover at least all the forms of folding phones currently on the market, and at least three models are expected to be released this year.

@Ross Young, an authority on the screen supply chain and the founder and CEO of DSCC, broke the news that Xiaomi is expected to launch three folding screen phones in 2021.
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https://www.igeekphone.com/xiaomi-folding-screen-phones-patents-released-7-design-patents/