The invention relates to a louver blind having louvers (1) that can be pivoted about a vertical axis, displaceably held at both ends thereof by louver holders (2) extending beyond the louver width between an upper and a lower guide track (3). The louver holders (2) are hereby connected to each other by carriages (4) displaceable in the guide tracks (3) and aligned in parallel to each other, and can be pivoted by synchronously driven drive device disposed in the carriages (4). In order to make the installation of the louver blind—or optionally the removal thereof—easier, according to the invention, decoupleable permanent magnets (16, 18) are provided for connecting between the louver mounts (2) and the carriages (4). Said arrangement has the further advantage that the connections can automatically release when critical tension or rotational forces are exceeded, so that damage can be prevented in the connecting parts.