2results about How to "Avoid tinkering" patented technology

The utility model relates to the technical field of building construction, and concretely discloses a protective window rail suitable for construction temporary protection, which comprises a permanent protective window rail, the permanent protective window rail comprises a permanent protective window horizontal pole and a permanent protective window vertical pole, and a temporary protection frame is detachably installed on the permanent protective window rail, the temporary protection frame comprises a horizontal telescopic rod arranged between the permanent protective window horizontal pole and a floor slab, the temporary protection frame can fill the gap between the permanent protective window vertical pole and the floor slab, thereby achieving the purpose of temporary protection, and the temporary protection frame is arranged on the inner side of the protective window rail to play a construction protection function, which can avoid the direct collision of construction appliances or construction personnel on the permanent protective window rail, thereby forming protection for the permanent protective window rail, after the completion of construction, the horizontal telescopic rod is retracted, and then the temporary protection frame is dismounted and installed on the next construction part, so that the protective window rail can be repeatedly used.

This application provides a display back panel and a display device. The display back panel includes a substrate and a plurality of light-emitting components. The light-emitting components include a first light-emitting unit and a second light-emitting unit. When one light-emitting component is in a working state, the first light-emitting unit and the second light-emitting unit emit light in a time-sharing manner when both are working normally. When either the first light-emitting unit or the second light-emitting unit malfunctions, the normally working light-emitting unit continues to emit light. The display back panel provided by this application can avoid repairing malfunctioning light-emitting units when one light-emitting component is in a working state, reducing the number of rework operations and further improving the display quality of the display back panel. It can also delay the light decay time of the display back panel and extend its service life.