Abstract: A backlight module includes a light source, a first prism sheet disposed on the light source, and a light type adjustment sheet disposed on a side of the first prism sheet away from the light source and including a base and multiple light type adjustment structures. The multiple light type adjustment structures are disposed on the first surface of the base. Each light type adjustment structure has a first structure surface and a second structure surface connected to each other. The first structure surface of each light type adjustment structure and the first surface of the base form a first base angle therebetween, and the second structure surface of each light type adjustment structure and the first surface of the base form a second base angle therebetween. The angle of the first base angle is different from the angle of the second base angle.

Abstract: Lightweight, low density magnesia-based tundish refractory compositions containing from 0.01 to 2.00 weight percent styrofoam beads and up to 5.0 weight percent paper fiber are disclosed. The compositions have excellent rapid heating, thermal insulative, vertical adhesion and deskullability properties. The compositions are useful as a lining applied over the permanent lining of a tundish, such as is used in continuous molten metal casting processes.

Abstract: An Al-Si base alloy to which is added predetermined amounts of Ti, preferably in the range from 0.2 to 1.0 weight percent Ti to significantly improve grain refinement and eutectic modification and to improve soundness and ductility of castings made of such an alloy, as well as reducing wear resistance of the casting. An Al-Ti or Al-Ti-B master alloy is utilized to produce the aforesaid alloy and is added to the melt to achieve the desired Ti level to produce a hypoeutectic and hypereutectic alloys. Alternatively, an Al-Ti-Si master alloy is added to the melt to obtain the desired Ti level for producing hypereutectic alloys.