A stand for supporting a board includes a wire frame having a first portion configured to support an edge of the board, and a second portion extending from the first portion. The stand also includes a latch mounted on the second portion. The latch is operable to restrain movement of the board relative to the wire frame.

Vehicle mountable holographic promoting system and method of use; system includes a body with light, mount, and controller in communication with a software application and the body. The body is mountable to the vehicle using mount. Mount can be removably attachable or otherwise secured to the roof of the vehicle. The controller controls the body such that the body can visually promote via an image display an item using the light—display region appearing to float on a plane above vehicle.

Vehicle mountable holographic promoting system and method of use; system includes a body with light, mount, and controller in communication with a software application and the body. The body is mountable to the vehicle using mount. Mount can be removably attachable or otherwise secured to the roof of the vehicle. The controller controls the body such that the body can visually promote via an image display an item using the light—display region appearing to float on a plane above vehicle.

A mobile robot includes a driver configured to provide a traveling function, a body disposed at an upper side of the driver, and formed to include an inclined surface protruding downward at front and rear surfaces thereof, a body frame disposed in the body, and one pair of displays coupled to the body frame, and disposed at front and rear surfaces of the body. The body frame includes body profiles disposed at left and right sides of the body frame, and formed to extend in a vertical direction, and display supports fixed to the body profiles to extend in forward and backward directions, and respectively coupled to the pair of the displays.

A mobile robot includes a driver configured to provide a traveling function, a body disposed at an upper side of the driver, and formed to include an inclined surface protruding downward at front and rear surfaces thereof, a body frame disposed in the body, and one pair of displays coupled to the body frame, and disposed at front and rear surfaces of the body. The body frame includes body profiles disposed at left and right sides of the body frame, and formed to extend in a vertical direction, and display supports fixed to the body profiles to extend in forward and backward directions, and respectively coupled to the pair of the displays.

A lighted display for mounting upon a vehicle having a trailer hitch receiver. The lighted display includes an elongated base member with a trailer hitch mount affixed midway along the base member. The base member also incorporates a horizontal step plate extending outward from upper edge of the base member allowing easier access to the rear of the vehicle. The base member is configured to receive multiple lighting elements within an elongated vertical channel. The lighting elements are connected to a trailer wiring plug which is configured to engage the vehicles trailer wiring connector. A message board is positioned within the vertical channel of the base member. The message board is made of a semi-translucent material which allows a portion of the light from the lighting elements to pass. The message board is partially masked with an opaque material, the unmasked portions forming the desired message for display. Upon illumination of the vehicle driving lights, one or more of the lighting elements are illuminated at the low light intensity level. Upon illumination of the vehicle brake light, one or more of the lighting elements are illuminated at the high light intensity level. And upon illumination of the vehicle turn signal light one or more of the lighting elements are illuminated at the high light intensity level in coordination with and on the corresponding side of the vehicle as the vehicle turn signal light.

A portable display apparatus and system are provided that is not limited to placement by the presence of mains power and avoids mains power leads that may pose a tripping hazard The portable display apparatus comprises: a self-standing housing; a digital display screen mounted to the housing and viewable from an outside of the housing; and a rechargeable battery provided in the housing, wherein the rechargeable battery is configured to power the digital display screen to thereby enable the digital display screen to display media thereon.

A portable display apparatus and system are provided that is not limited to placement by the presence of mains power and avoids mains power leads that may pose a tripping hazard The portable display apparatus comprises: a self-standing housing; a digital display screen mounted to the housing and viewable from an outside of the housing; and a rechargeable battery provided in the housing, wherein the rechargeable battery is configured to power the digital display screen to thereby enable the digital display screen to display media thereon.

A serving robot apparatus is disclosed. The serving robot apparatus includes a main body; a shelf horizontally supported by the main body; a first driving device configured to move the main body; a display comprising a front surface to display an image and a rear surface disposed to face a side surface of the main body; a link member comprising one end connected to the main body and other end connected to a rear surface of the display; and a second driving device configured to move the link member so that the display moves along the side surface of the main body.

A serving robot apparatus is disclosed. The serving robot apparatus includes a main body; a shelf horizontally supported by the main body; a first driving device configured to move the main body; a display comprising a front surface to display an image and a rear surface disposed to face a side surface of the main body; a link member comprising one end connected to the main body and other end connected to a rear surface of the display; and a second driving device configured to move the link member so that the display moves along the side surface of the main body.