Abstract: A glass frit includes Bi2O3 and has a glass transition temperature (Tg) in a range of 280° C. to 320° C. A display device includes the glass frit including Bi2O3 and the glass transition temperature (Tg) in the range of 280° C. to 320° C. The display device shows excellent internal reliability and drop strength.

Abstract: Disclosed herein is a method of manufacturing a color conversion structure for a micro light-emitting diode (LED) display, the method including dividing a lattice in a partition wall structure into a plurality of lattice groups, each having three adjacent lattices, injecting a first glass paste containing a first color conversion material and a glass powder into a first lattice of each of the plurality of lattice groups, and injecting a second glass paste containing a second color conversion material and a glass powder into a second lattice of each of the plurality of lattice groups.

Abstract: The present invention provides a model railcar for cleaning, which can remove an oxide film and an oil film from the surface of rails and can simultaneously remove fine metal components, such as metal powder. The model railcar for cleaning comprises: a fan arranged towards a train track; a dust collecting chamber for containing alien substances drawn in by the fan; a cleaning block having a cleaning pad attached to a surface of the model train track, which faces the rails, a member capable of polishing or washing the rails being positioned on the cleaning pad; and a permanent magnet positioned to face the model train track.