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(Figure from: USPTO, via)Windows Latest)
It is reported that on April 16, 2019, USPTO announced a patent entitled Electronic Equipment and Its Mode Switching Method, which describes in detail the working mechanism of this foldable display screen.
Lenovo said that the device consists of two main parts - the first body contains two tails; the second body is connected to the so-called fifth and fourth parts, and can rotate around the former part to a certain extent.
In addition, the electronic device supports at least two modes: (1) the surface of the first body is covered by the second body; (2) the surface of the connection is covered by the second body.
As for the second patent published by USPTO, it is titled "Portable Information Device", which describes another foldable device.
The device is equipped with a support plate, which can stably support a foldable display screen. The supporting foot is fixed on the inner surface of the first and second parts of the fuselage to provide support for the back of the screen.
To facilitate folding into a "double fold" state, the device also uses flexible components to connect the first and second parts of the fuselage panels.