Alignment for tiles of tiled displays

Patent metadata

Field	Value
Publication number	US-2022022330-A1
Application number	US-201917298665-A
Country	US
Kind code	A1
Filing date	Nov 29, 2019
Priority date	Nov 29, 2018
Publication date	Jan 20, 2022
Grant date	—

Abstract

Tiled displays having display tiles, are described as well as methods of making and/or operating tiled displays and tiles. Methods and devices are described for a tiled display having tiles lying in an X-Y plane, the methods and devices being for setting or adjusting the position of neighbouring tiles in a tiled display to reduce differences in the Z direction between tiles of a tiled display, whereby the tiles lie in the X-Y plane.

First claim

1 - 57 . (canceled)

58 . 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 the first side of the first display tile comprises a first body of a first kinematic pair and a second body of a second kinematic pair wherein the second side of the second display tile has a second body of the first kinematic pair and a first body of the second kinematic pair, wherein the first and second kinematic pairs is able to impose a constraint on the relative movement of the first body and the second body in a direction perpendicular to the display plane.

59 . The tiled display according to claim 58 , wherein the display tiles are rectangular having four corners and a display surface, each corner of the four corners of the display tile having one of first to fourth corner elements that can be fastened to one of the first to fourth corners, the rectangular display tile having sides S 1 and S 2 that are perpendicular to each other and meet to form one of the first to fourth corners of the display tile and one of the first to fourth corner elements has a first side SC 1 aligned with a side S 1 of the display tile and a second side SC 2 aligned with a side S 2 of the display tile, the first side SC 1 of the corner element having a second body of a first kinematic pair and the second side SC 2 has the first body of another kinematic pair, each of the first to fourth corner elements when fastened to one of the first to fourth corners of the display tile has a first body and a second body of different kinematic pairs and a built in mechanism to determine the position of the second body.

60 . The tiled display according to claim 59 , 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 can fit, or
wherein first to fourth corner elements and an alignment mechanism constrain the displacement of each display tile in a direction perpendicular to the plane of the surfaces of the display tiles without overdefining the tiling of two or more display tiles.

61 . The tiled display according to claim 58 , wherein the first body has a first element and a second element on the first side that delimit a space in between them, and into which space the second body fits, and wherein the first and second elements are plate like elements or rectangular parallelepipeds, which extend away from the respective first and second sides.

62 . The tiled display according to claim 61 , wherein the first and second elements extend parallel to a display surface of a first tile, and both extend in a direction perpendicular to the direction Z.

63 . The tiled display according to claim 60 , 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.

64 . The tiled display according to claim 63 , 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.

65 . The tiled display according to claim 64 , wherein the pinion is coupled by means of a coupling to the second body of a kinematic pair.

66 . The tiled display according to claim 64 , wherein the tiled display is adapted so that when the pinion is rotated, the second body is also rotated around an axis.

67 . The tiled display according to claim 66 , further comprising a resilient device for returning the second body to its initial position when no force is applied to the actuator.

68 . The tiled display according to claim 63 , wherein the tiled display is adapted so that when the position of the first force transmitter is in a second or third position it cannot transmit a force applied on the actuator such as the push button and the second body will not rotate, or
adapted so that under the action of gravity, the first force transmitter occupies either a second or third position and the actuator cannot transmit a force and the second body of a corner element is in the active position, or adapted so that under the action of gravity, the first force transmitter occupies its natural position and can transmit a force.

69 . The tiled display according to claim 68 , wherein the tiled display is adapted so that a kinematic pair does restrict the relative movement of first and second tiles.

70 . The tiled display according to claim 58 , further comprising support substructures each for fastening a display tile to a support structure of a tiled display, adjacent display tiles in the tiled display being separated by a nominal seam, a first support substructure being characterized in that it is linked to the support structure by means of a first mechanism allowing movements of each display tile in a plane parallel to the nominal plane (XY) of the tiled display to form a gap (G) between adjacent display tiles obtained by moving one or more display tiles from a first position (P 1 ) to a second position (P 2 ) and a second mechanism fixing the position of the first support substructure in the second position, wherein the gap (G) is larger than the nominal seam.

71 . A method of constructing a tiled display having an alignment mechanism, the tiled display having 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 can impose a constraint on the relative movement of the first body and the second body in a direction perpendicular to the display plane.

72 . The method according to claim 71 , wherein the display tiles are rectangular having four corners and a display surface, each corner of the four corners of the display tile having one of first to fourth corner elements that can be fastened to one of the first to fourth corners, the rectangular display tile having sides S 1 and S 2 that are perpendicular to each other and meet to form one of the first to fourth corners of the display tile and one of the first to fourth corner elements has a first side SC 1 aligned with a side S 1 of the display tile and a second side SC 2 aligned with a side S 2 of the display tile, the first side SC 1 of the corner element having a second body of a first kinematic pair and the second side SC 2 has the first body of another kinematic pair, each of the first to fourth corner elements when fastened to one of the first to fourth corners of the display tile has a first body and a second body of different kinematic pairs and a built in mechanism to determine the position of the second body.

73 . The method according to claim 72 , 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 can fit, or
wherein first to fourth corner elements and an alignment mechanism constrain the displacement of each display tile in a direction perpendicular to the plane of the surfaces of the display tiles without overdefining the tiling of two or more display tiles.

74 . The method according to claim

Assignees

• Barco Nv

Inventors

• Dewaele Tom Adriaan Gerard
• Naas Nico Michael

Classifications

• H05K5/30

  Side-by-side or stacked arrangements · CPC title

• H05K5/0217 Primary

  Mechanical details of casings (covers, lids, hoods or members for covering apertures H05K5/03) · CPC title

• F16M13/02

  for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle · CPC title

• F16M11/10

  around a horizontal axis {(F16M11/12 takes precedence)} · CPC title

• F16M11/18

  with mechanism for moving the apparatus relatively to the stand · CPC title