Flat-type monitor

A flat-type monitor to easily control a slant angle of an video display screen to a flat surface is disclosed. The present invention includes a flat video display unit having an video display screen, casings for containing and supporting the video display unit to expose the video display screen, and a slant controller for controlling a slant angle of an assembly of the video display unit and the casings corresponding to external force affecting on the assembly. The slant controller comprises a rotary shaft arranged in parallel to an installing flat surface for a monitor; a rotary member having containing holes to axially contain the rotary shaft and being coupled to a leg member installed on a rear side of the assembly to support the assembly to the installing flat surface; a rotary resistant member interposed between the rotary member and the rotary shaft to contact each other for adding resistance to the rotation of the rotary member relative to the rotary shaft; and a plurality of one-way clutch members arranged on at least one end for allowing the rotation of the rotary shaft toward a direction to which the leg member approaches to the assembly and for restraining the rotation of the rotary shaft toward a direction to which the leg member is parted from the assembly.