FLEXIBLE SCREEN COVER, FLEXIBLE DISPLAY PANEL, FLEXIBLE SCREEN AND FOLDABLE ELECTRONIC DEVICE Russian patent published in 2023 - IPC G09F9/30 

FIELD: flexible screens.

SUBSTANCE: group of inventions relates to a flexible screen cover, a flexible display panel, a flexible screen, and a foldable electronic device. A flexible screen is proposed, comprising: a protective layer, a base layer, a polarizer, a display layer, and a support layer, which are sequentially stacked on top of each other. The polarizer is located on the light-emitting side of the display layer. The support layer is located on the backlight side of the display layer. The flexible screen further comprises at least one of the first buffer layer, the second buffer layer, and the third buffer layer. The first buffer layer is located between the main layer and the polarizer, and both the ratio of the elastic moduli of the main layer and the first buffer layer and the ratio of the elastic moduli of the polarizer and the first buffer layer are from 2 to 500,000. The second buffer layer is located between the polarizer and the display layer, and both the ratio of the elastic moduli of the polarizer and the second buffer layer and the ratio of the elastic moduli of the display layer and the second buffer layer are from 2 to 500,000. The third buffer layer is located on the backlight side of the display layer. The third buffer layer and the support layer are stacked on top of each other, and the ratio of the elastic moduli of the support layer and the third buffer layer is from 2 to 500,000.

EFFECT: inventions make it possible to increase impact resistance of a flexible screen.

16 cl, 17 dwg