Abstract: A viewing angle diffusion film and a display panel are provided, including a substrate and a plurality of refractive protrusions. Through arranging two adjacent refractive protrusions in a staggered layout with changes periodically in each column of refractive protrusions, that is, initial positions of each column of refractive protrusions are not on a same straight line, a Moire effect can thereby be reduced, improving a quality of the display panel.

Abstract: Disclosed are a viewing angle adjustment film structure, a manufacturing method thereof, and a display device, including a base, an isotropic optical material layer, and a liquid crystal layer stacked in sequence. The isotropic optical material layer is provided with grooves, the liquid crystal layer fills the grooves, and light enters from the liquid crystal layer and then exits through the isotropic optical material layer. Director of liquid crystal molecules in the liquid crystal layer is changed according to an external applied voltage or a change of an electric field, so as to adjust a viewing angle of the light emitted from the isotropic optical material layer.

Abstract: An encoder and a mouse using the same are disclosed. The encoder includes a body, a first positioning portion and a second positioning portion. The first positioning portion is connected to the body and includes a first segment and a second segment, wherein the first segment extends outwardly relative to the body, and the second segment extends inwardly relative to the first segment. The second positioning portion is connected to the body and includes a third segment and a fourth segment, wherein the third segment extends outwardly relative to the body, and the fourth segment extends inwardly relative to the third segment.

Abstract: A mouse device comprising a base, a first circuit board, a scroll wheel bearing, a light-emitting component and a scroll wheel. The first circuit board is disposed on the base. The scroll wheel bearing is mounted to the base. The light-emitting component is disposed on the scroll wheel bearing, and is electrically connected to the first circuit board. The scroll wheel is rotatably connected to the base and the scroll wheel bearing. The light-emitting component is disposed between the scroll wheel and the scroll wheel bearing. By disposing the light-emitting component in the scroll wheel, the light emitted from the light-emitting component would pass through the scroll wheel and the scroll wheel bearing to the outside, which can be evenly emitted from each side of the scroll wheel and the scroll wheel bearing for even light distribution and scrolling without obstruction.

Abstract: A mouse device comprising a base, a first circuit board, a scroll wheel bearing, a light-emitting component and a scroll wheel. The first circuit board is disposed on the base. The scroll wheel bearing is mounted to the base. The light-emitting component is disposed on the scroll wheel bearing, and is electrically connected to the first circuit board. The scroll wheel is rotatably connected to the base and the scroll wheel bearing. The light-emitting component is disposed between the scroll wheel and the scroll wheel bearing. By disposing the light-emitting component in the scroll wheel, the light emitted from the light-emitting component would pass through the scroll wheel and the scroll wheel bearing to the outside, which can be evenly emitted from each side of the scroll wheel and the scroll wheel bearing for even light distribution and scrolling without obstruction.

Abstract: A pre-drying system for lignite, including an inner heating fluid bed dryer including at least one built-in heat exchanger, a feeding device, a second discharging valve, and at least one stage of dust collecting device. The built-in heat exchanger is connected to saturated vapor, and to a condensate system. A fluid bed of the inner heating fluid bed dryer is connected to superheated vapor. Exhaust vapor of the inner heating fluid bed dryer is processed by the dust collecting device, and then a part thereof returns to the fluid bed, and another part thereof is evacuated.

Abstract: Mold apparatus for molding a weighing funnel that has a large diameter central segment, and a hole at each end that is smaller than the central segment. A 2-part core is used, the two parts together forming the size and shape of the article to be molded, and to remove the core from the molded article, the parts are withdrawn individually through a hole at the end of the article.