A display panel and a display device are provided. The display panel includes a display region and a non-display region surrounding the display region. The non-display region is provided with multiple sensing components. The multiple sensing components each are configured to generate a first signal when the display panel is in a flattened state. When the display panel is in a partially-rolled state, the display panel includes a flattened part and a rolled part, a sensing component in the flattened part is configured to generate the first signal, and a sensing component in the rolled part is configured to generate a second signal. The multiple sensing components each are configured to generate the second signal when the display panel is in a fully-rolled state.