Abstract: The present application provides a displaying base plate and a displaying device, which relate to the technical field of displaying. The displaying base plate can effectively reduce the width of the non-displaying region, so as to realize a narrow border frame, and accordingly increase the screen-to-body ratio. The displaying base plate includes: a displaying region; and a non-displaying region surrounding the displaying region, wherein the non-displaying region includes a first dam region, the first dam region surrounds the displaying region; and the first dam region includes a dam, at least one blocking unit located at one side of the dam away from the displaying region, the dam and the blocking unit are disposed within at least a part of the first dam region, and the blocking unit is patterned.

Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate and sub-pixels. The sub-pixel includes a light-emitting element which includes a light-emitting functional layer and a first electrode and a second electrode. The display substrate further includes a defining structure, a first orthographic projection of a surface, close to the base substrate, of the defining structure between adjacent sub-pixels on the base substrate is completely within a second orthographic projection of a surface, away from the base substrate, of the defining structure on the base substrate, a maximum size of the second orthographic projection is greater than that of the first orthographic projection, and the defining structure includes an inorganic nonmetallic material; the light-emitting functional layer is disconnected at an edge of the defining structure, and second electrodes of adjacent sub-pixels are at least partially continuously arranged.

Abstract: A display panel has a display region and a peripheral region. The display panel includes a substrate, a first metal layer disposed on the substrate, a planarization layer disposed on a side of the first metal layer away from the substrate, and a retaining wall structure located in the peripheral region and surrounding the display region. The first metal layer includes a signal line pattern located in the peripheral region. The planarization layer includes an opening in the peripheral region. At least a portion of the retaining wall structure is located in the opening. The signal line pattern is provided with at least one through hole, an orthogonal projection of the at least one through hole on the substrate is located within an orthogonal projection of the opening on the substrate, and is at least located on a side of an orthogonal projection of the retaining wall structure on the substrate.