Patent ID: 8300065

Claim:
A rotatable display device comprising: a display unit to display an image of an input signal of the rotatable display device; a command input unit to input at least one adjustment command for the image; a controller to receive the adjustment command to directly adjust a dimension of the image from a user and to change the adjustment command to another adjustment command according to a rotating direction of the display unit, when the display unit is rotated and the adjustment command is input, and to generate a first control signal to adjust the image on the display unit according to the changed another adjustment command; an on-screen display (OSD) unit to generate an OSD message, wherein the OSD unit generates the OSD message in response to an OSD control signal generated by the controller when the adjustment command is input; and a pivot processor to rotate the displayed image according to the rotation direction of the display unit, wherein the displayed image includes at least two images and the OSD message, wherein adjusting the image on the display unit according to the changed another adjustment command comprises adjusting the at least two images and the OSD message according to the changed another adjustment command, when the adjustment command is input, and wherein the pivot processor is enabled to separately rotate the at least two images and the OSD message.