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After Lenovo in 2020 released the world’s first folding-screen laptop, the ThinkPad X1 Fold, the company’s engineers started imagining other ways to use the flexible screen technology, says AG Zheng, Lenovo’s executive director, Product and Smart Solutions. The “Rollable Laptop,” still a prototype, has a bending screen partly concealed under its keyboard. Push a button, and the screen expands like a window roller shade to grow from a standard 4”x3” shape into a nearly square 15.3-inch display. The taller screen is useful for tasks like page design, computer coding, and video conferences, and it can stack two 16”x9” windows.

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