Abstract: An organic light-emitting diode (OLED) display panel and a display device are provided. The OLED display panel includes a substrate, a thin-film transistor device layer, a light-emitting device, a passivation layer, a planarization layer, a level-raised layer, a protruding platform, an auxiliary electrode, and an undercut channel. The protruding platform is disposed directly above the level-raised layer. The auxiliary electrode includes a contact portion and a step portion, and the step portion is located at a vertical level higher than a vertical level of the contact portion. An orthographic projection of the undercut channel on the substrate and an orthographic projection of the level-raised layer on the substrate are spaced apart from each other.

Abstract: An organic light-emitting diode (OLED) display panel and a display device are provided. The OLED display panel includes a substrate, a thin-film transistor device layer, a light-emitting device, a passivation layer, a planarization layer, a level-raised layer, a protruding platform, an auxiliary electrode, and an undercut channel. The protruding platform is disposed directly above the level-raised layer. The auxiliary electrode includes a contact portion and a step portion, and the step portion is located at a vertical level higher than a vertical level of the contact portion. An orthographic projection of the undercut channel on the substrate and an orthographic projection of the level-raised layer on the substrate are spaced apart from each other.

Abstract: Display terminals and display panels are provided. The display panel includes a substrate and at least one retaining wall. The retaining wall is disposed on the substrate and outside a display area of the display panel, and surrounds the display area. The retaining wall includes a first retaining wall layer and a second retaining wall layer stacked on the first retaining wall layer and disposed on a side of the first retaining wall away from the substrate. An area of an orthographic projection of the second retaining wall layer on the substrate is less than an area of an orthographic projection of the first retaining wall layer on the substrate, and a horizontal distance between a boundary of the second retaining wall layer away from the display area and a boundary of the first retaining wall layer away from the display area is greater than a first threshold.

Abstract: An organic light-emitting diode (OLED) display panel and a display device are provided. The OLED display panel includes a substrate, a thin-film transistor device layer, a light-emitting device, a passivation layer, a planarization layer, a level-raised layer, a protruding platform, an auxiliary electrode, and an undercut channel. The protruding platform is disposed directly above the level-raised layer. The auxiliary electrode includes a contact portion and a step portion, and the step portion is located at a vertical level higher than a vertical level of the contact portion. An orthographic projection of the undercut channel on the substrate and an orthographic projection of the level-raised layer on the substrate are spaced apart from each other.

Abstract: The present disclosure provides a frequency converter. The frequency converter includes a box body and a bottom box. A bottom portion of the box body is fixedly connected with a top portion of the bottom box. A top portion of a left side of the box body and a bottom portion of the left side of the box body are fixedly connected to a respective fan. A top portion of a left side of an inner wall of the box body and a top portion of the left side of the inner wall of the box body are fixedly connected to a respective annular plate. One end of an output shaft of each fan is fixedly connected to a rotating rod. One end of each rotating rod away from the fan passes through the box body and extends to an interior of the box body.

Abstract: The disclosure relates to the technical field of toys, and provides a non-electric toy transmission system, to resolve a prior-art technical problem that an electric toy transmission mechanism has high use costs and a short service life. Technical solutions in the disclosure are as follows: The non-electric toy transmission system includes an instruction apparatus, an execution apparatus, a pipeline, and a transmission medium, where the instruction apparatus and the execution apparatus are connected by the pipeline, and the instruction apparatus, the execution apparatus, and the pipeline are filled with the transmission medium; and the instruction apparatus is capable of being triggered to enable the transmission medium in the instruction apparatus to enter the execution apparatus through the pipeline, and the execution apparatus completes, under pressure of the transmission medium, an action designed for a toy.

Abstract: The present disclosure provides a frequency converter. The frequency converter includes a box body and a bottom box. A bottom portion of the box body is fixedly connected with a top portion of the bottom box. A top portion of a left side of the box body and a bottom portion of the left side of the box body are fixedly connected to a respective fan. A top portion of a left side of an inner wall of the box body and a top portion of the left side of the inner wall of the box body are fixedly connected to a respective annular plate. One end of an output shaft of each fan is fixedly connected to a rotating rod. One end of each rotating rod away from the fan passes through the box body and extends to an interior of the box body.

Abstract: The present application relates to the field of immersed tube jointing, and more particularly relates to a post-grouting method for an immersed tube joint base. The post-grouting method includes the following steps: before locked backfilling of immersed tubes to be implanted, disposing a grouting tube capable of outputting solidifiable slurry in a furrow below immersed tubes; and after the locked backfilling, grouting the immersed tubes by using the grouting tube. For the purposes of adjusting postures and heights of the immersed tubes in case of abnormal settlement during installation, solving the problems on the stabilities and the service lives of immersed tube joints due to settlement of gravel mattresses or a geologic structure thereunder after installation, and enabling the immersed tubes to achieve a better bearing effect on a load during use, the present application provides the post-grouting method for the immersed tube joint base.

Abstract: The present application relates to the field of immersed tube jointing, and more particularly relates to a post-grouting method for an immersed tube joint base. The post-grouting method includes the following steps: before locked backfilling of immersed tubes to be implanted, disposing a grouting tube capable of outputting solidifiable slurry in a furrow below immersed tubes; and after the locked backfilling, grouting the immersed tubes by using the grouting tube. For the purposes of adjusting postures and heights of the immersed tubes in case of abnormal settlement during installation, solving the problems on the stabilities and the service lives of immersed tube joints due to settlement of gravel mattresses or a geologic structure thereunder after installation, and enabling the immersed tubes to achieve a better bearing effect on a load during use, the present application provides the post-grouting method for the immersed tube joint base.