Abstract: A display includes a light guide plate, a first optical adhesive, a light source element, and a display panel. The light guide plate includes a light guide substrate and an enhancement layer disposed on the light guide substrate. At least a portion of the enhancement layer is interposed between a first surface of the light guide substrate and the first optical adhesive. A difference between the refractive index n1 of the light guide substrate and the refractive index n2 of the at least a portion of the enhancement layer is ?n1. ?n1=n1?n2. A difference between the refractive index n3 of the first optical adhesive and the refractive index n2 of the at least a portion of the enhancement layer is ?n2. ?n2=n3?n2, ?n1?0, ?n2?0, and ?n1??n2.

Abstract: A combined solar cell module includes a solar cell module, an end connection device, and an output connection device. The solar cell module includes first and second connection portions on opposite sides of a substrate, and connection lines which connect solar cells to the first and second connection portions. The first connection portion has a first holding space. The second connection portion has a second holding space corresponding to the first holding space in an up-and-down manner. First and second connection parts are within the first and second holding spaces respectively. At least one of the first and second connection parts is a magnetic material, and another one is a magnetic material or a magnetically attractable material. The end connection device and the first connection portion are detachable and connectable. The output connection device and the second connection portion are detachable and connectable, for outputting current generated by solar cells.

Abstract: A method for forming a thin film having sulfide single-crystal nanoparticles includes dropping a sulfide precursor solution on the surface of a Group VI absorption layer, and then performing thermal decomposition on the sulfide precursor solution under a predetermined temperature to form a thin film consisting of sulfide single-crystal nanoparticles on the surface of the Group VI absorption layer.

Abstract: A compound solar cell includes a substrate, a first electrode located on the substrate, a Group VI absorption layer located on the first electrode, and a second electrode located on the group VI absorption layer. Moreover, a first buffer layer is between the second electrode and the Group VI absorption layer, wherein the first buffer layer is a thin film consisting of sulfide single-crystal nanoparticles.