Alignment for tiles of tiled displays

A tiled display comprising:

• a first and a second display tile,
• the first and second display tiles lying in a display plane and each having a first and second side respectively,
• wherein a first body of a first kinematic pair and a second body of a second kinematic pair are formed in the first side of the first display tile and a second body of the first kinematic pair and a first body of the second kinematic pair are formed in the second side of the second display tile, the tiled display is characterized in that the first and second kinematic pairs are able to impose a constraint on a relative movement of the first body of the first kinematic pair or the second kinematic pair with the corresponding second body in a direction perpendicular to the display plane,
• wherein the first display tile and the second display tile are rectangular having four corners and a display surface, each corner of the four corners of the first display tile and the second display tile having one of first to fourth corner elements that are fastened to back sides of one of the first to fourth corners of the display tile, the rectangular display tile having sides (S1) and (S2) that are perpendicular to each other and meet to form one of the first to fourth corners of the respective display tile;
• and one of the first to fourth corner elements has a first side (SC1) aligned with the side (S1) of the respective display tile and a second side (SC2) aligned with the side (S2) of the respective display tile, the first side (SC1) of the corner element having the second body of the first kinematic pair and the second side (SC2) of the corner element has the first body of the second kinematic pair, each of the first to fourth corner elements when fastened to one of the first to fourth corners of the respective display tile has the first body and the second body of different kinematic pairs of the first kinematic pair and the second kinematic pair and a built-in mechanism to determine a position of the second body,
• wherein the built-in mechanism has an actuator located within the first body, in a space where the second body of the other kinematic pair is configured to fit,
• wherein the actuator is a user operable actuator for transmitting a force when operated to a first force transmitter when the actuator is in a first position;
• and
• further comprising means to transmit the force to a second force transmitter which further transmits the force to a rack, the rack being adapted to translate and to force the rotation of a pinion.