Abstract: An optoelectronic semiconductor element is provided. The optoelectronic semiconductor element includes a semiconductor stack and a first metal layer. The semiconductor stack includes a first portion and a second portion stacked in sequence, with the second portion including an active region. The first metal layer is located on the first portion and is electrically connected to the first portion. A top-view outline of the first portion shows a first pattern, a top-view outline of the second portion shows a second pattern, and a top-view outline of the first metal layer shows a third pattern. The area ratio of the third pattern to the first pattern is from 0.5% to 10%.

Abstract: A shower curtain mounting device includes: a pair of wall brackets; a pair of joints, each of which is pivoted and is rotatable about an axis relative to a respective one of the wall brackets and each of which has a tubular rod connecting part; and a shower curtain rod extending in a transverse direction relative to the axis into the rod connecting parts of the joints.

Abstract: A shower curtain mounting device includes: a pair of wall brackets each having a mounting body defining a recess having a concave surface; a pair of joints each of which is pivoted to a respective one of the wall brackets and each of which has a tubular rod connecting part, and a bracket connecting part protruding from the tubular rod connecting part into the recess, the bracket connecting part being rotatable about an axis relative to the mounting body and having a convex surface contacting rotatably the concave surface; and a shower curtain rod transverse to the axis and having two ends respectively extending into the rod connecting parts of the joints.