A support frame is adapted to provide support to a display device, and includes a pivot seat module, a first support module and a second support module. The pivot seat module is adapted to be mounted to the display device for rotation relative to the display device about a first axis passing through the display device. The first support module is coupled to the pivot seat module, and is disposed to form an angle with a backside of the display device for supporting the display device at a substantially upright position. The second support module is coupled to the pivot seat module, is pivotable relative to the pivot seat module about a second axis that is orthogonal to the first axis, and cooperates with the first support module to support the display device at a lying position.