Desity Traffic Ind Co., Ltd.

Hannstar Display Corporation

Chun-Chieh Wang

Li-Fang Chiu

Ching-Chieh Lee

This invention discloses an etching solution and a manufacturing method of a display panel. The method includes following steps: providing a substrate; forming a conductive layer stack including a first sub-layer, a second sub-layer and a third sub-layer on the substrate, the first sub-layer includes molybdenum, the second sub-layer is disposed on the first sub-layer and includes a transparent conductive material including indium-containing oxide, the third sub-layer is disposed between the first sub-layer and the second sub-layer and includes silver or silver alloy; performing an etching process, the first sub-layer, the second sub-layer and the third sub-layer are etched by an etching solution to form a first patterned sub-layer, a second patterned sub-layer and a third patterned sub-layer. The etching solution includes 1 to 3 wt % of nitric acid, 30 to 50 wt % of acetic acid, 30 to 50 wt % of phosphoric acid and a remaining amount of water.

Manufacturing method of display panel and etching solution

An illuminated running board for a vehicle includes a light guide plate, a panel, and a luminous module. A plurality of convex portions is formed on a top surface of the light guide plate, and a plurality of optic pattern portions is formed on a bottom surface of the light guide plate. A groove is formed in the bottom surface of the light guide plate and spaced from the optic pattern portions. The panel mounted on the top surface of the light guide plate has a plurality of through-holes, each of which is penetrated by one of the convex portions. The luminous module installed in the groove includes a plurality of luminous elements which are not opposite to the convex portions. Light rays from the luminous elements are conducted into the light guide plate, reflected to the optic pattern portions, and projected upward from the convex portions.

Illuminated running board for vehicle

Running board for a vehicle

An illuminated running board for a vehicle includes a running board body and at least one light-emitting device installed in the running board body. The running board body includes two lateral ends and an outer end portion extending between the lateral ends. The light-emitting device includes a light guide bar and at least one illuminant. The light guide bar is held inside the outer end portion and includes a plane facing the outer end portion for development of a luminous surface. The illuminant is adjacent to an end face of the light guide bar and projects light rays which are guided into the light guide bar through the end face and emitted from the outer end portion, so that the running board can be clearly observed by passengers and other vehicle drivers for better security of the running board in service.

Growing community of inventors

Tainan, Taiwan

Chun-Chieh Wang