Abstract: A high chair, including: a seat frame including a first support frame and a first seat plate disposed on the first support frame; a first backrest assembly configured to be detachably connected to the seat frame, and including a first backrest part, a barrier part, and a first connecting part connected to the seat frame; and a second backrest assembly configured to be detachably connected to the seat frame, and including a second backrest part and a second connecting part connected to the seat frame. The seat frame may be connected to one of the first backrest assembly and the second backrest assembly. When the first backrest assembly is fixedly connected to the seat frame, the high chair is in a first usage mode. When the second backrest assembly is fixedly connected to the seat frame, the high chair is in a second usage mode.

Abstract: An engaging device and an infant seat assembly having the engaging device. The engaging device is adapted to fix the baby carrier to the high chair, the baby carrier has a crossbar and the high chair has a carrier base. The engaging device includes an engaging base and a first engaging mechanism. The engaging base is adapted to be connected to the carrier base. The first engaging mechanism is movably disposed on the engaging base. The first engaging mechanism is adapted to releasably engage the crossbar with the engaging base. The infant seat assembly includes a high chair and the aforementioned engaging device. The baby basket can be detachably mounted to the carrier base of the high chair by the engaging device.

Abstract: A shift register unit, a driving method thereof, a gate driving circuit, and a display device are provided. The shift register unit includes an input branch and a reset branch; the input branch is configured to form or disconnect a first path between a first scan voltage terminal and a pull-up node under control of a potential of a first control terminal. The reset branch is configured to form or disconnect a second path between a second scan voltage terminal and the pull-up node under control of a potential of a second control terminal.

Abstract: A shift register unit, a driving method thereof, a gate driving circuit, and a display device are provided. The shift register unit includes an input branch and a reset branch; the input branch is configured to form or disconnect a first path between a first scan voltage terminal and a pull-up node under control of a potential of a first control terminal. The reset branch is configured to form or disconnect a second path between a second scan voltage terminal and the pull-up node under control of a potential of a second control terminal.

Abstract: This disclosure provides a method for treating an etching waste liquid from an etching process of indium tin oxide comprising hydrochloric acid, acetic acid, tin ions, indium ions and water, comprising the steps of: distilling the etching waste liquid to obtain a distillate comprising hydrochloric acid and acetic acid and a post-distillation liquid comprising tin ions and indium ions; generating a precipitate by reacting tin ions in the post-distillation liquid with sulfide ions to remove tin ions from the solution so as to obtain a post-precipitation solution containing indium ions; and electrolyzing the post-precipitation solution to obtain crude indium.

Abstract: This disclosure provides a method for treating an etching waste liquid from an etching process of indium tin oxide comprising hydrochloric acid, acetic acid, tin ions, indium ions and water, comprising the steps of: distilling the etching waste liquid to obtain a distillate comprising hydrochloric acid and acetic acid and a post-distillation liquid comprising tin ions and indium ions; generating a precipitate by reacting tin ions in the post-distillation liquid with sulfide ions to remove tin ions from the solution so as to obtain a post-precipitation solution containing indium ions; and electrolyzing the post-precipitation solution to obtain crude indium.