Abstract: The present disclosure provides a pixel driving circuit and a display panel. The pixel drive circuit includes: a data writing sub-circuit, a threshold compensation sub-circuit, a driving sub-circuit and a storage sub-circuit, the data writing sub-circuit includes a fourth transistor, which includes a first electrode connected with a data line, a second electrode connected with a first terminal of the driving sub-circuit, and a control electrode connected with a first scan signal line, and the fourth transistor is an oxide thin film transistor; the threshold compensation sub-circuit is configured to compensate a threshold voltage of the driving sub-circuit in response to a second scan signal; the storage sub-circuit is configured to store a data voltage signal; the driving sub-circuit is configured to provide a driving current for a light emitting device to be driven according to voltages of the first terminal and a control terminal thereof.

Abstract: A supporting plate and a foldable display device are provided. The supporting plate includes at least one bending region and non-bending regions. The bending region includes two semi-bending regions bent symmetrically along a bending axis. Any of the semi-bending regions includes an internally bending region and an externally bending region. The internally bending region is located on an end away from the non-bending regions. The externally bending region is located on an end close to the non-bending regions and has a bending direction opposite to the internally bending region. The semi-bending regions include a plurality of openings spaced apart. A distribution density of the openings in the internally bending region is greater than a distribution density of the openings in the externally bending region.

Abstract: A supporting plate and a foldable display device are provided. The supporting plate includes at least one bending region and non-bending regions. The bending region includes two semi-bending regions bent symmetrically along a bending axis. Any of the semi-bending regions includes an internally bending region and an externally bending region. The internally bending region is located on an end away from the non-bending regions. The externally bending region is located on an end close to the non-bending regions and has a bending direction opposite to the internally bending region. The semi-bending regions include a plurality of openings spaced apart. A distribution density of the openings in the internally bending region is greater than a distribution density of the openings in the externally bending region.