received by the International Bureau on 19 May 2017 (19.05.17)

1. Apparatus comprising:

a plurality of illuminated display elements, movably attached to one another to be individually movable along a flat plane, wherein each of the illuminated display elements in the first plurality includes a light source assembly, facing outward;

a support illuminated display element, flexibly attached to an illuminated display element within the plurality, movable between a position extending along the flat plane and a position extending inwardly away from the flat plane, wherein the support illuminated display element includes a light source assembly, facing outward, with the support illuminated display element in the position extending along the flat plane;

an electrical circuit, including at least one battery, causing each light source assembly to illuminate; and

a plurality of permanent magnets, attached to one or more of the illuminated display elements, facing inward.

2. The apparatus of claim 1 , wherein the plurality of illuminated display elements includes:

a first illuminated display element having a first end flexibly attached to the support illuminated display member, and

second and third illuminated display elements, each pivotally attached to second end. opposite the first end, of the first illuminated display element.

3. The apparatus of claim 2, wherein each of the second and third illuminated display elements is pivotally attached to the first illuminated display element by attachments comprising:

a bearing member extending inward within the first illuminated display element to an end surface, having an internal surface including a circular array of evenly spaced detent notches;

a circular array of flexible members extending inward from the second or third illuminated display element within the internal surface of the bearing member, wherein each of the flexible members includes a proximal bearing surface configured to slide along the internal surface of the bearing member, a distal latching tooth extending

1 radially outward adjacent the end surface of the bearing member, and a rounded detent surface adjacent the latching tooth, extending radially outward in engagement with one of the detent notches in the bearing member, wherein an application of sufficient torque between the first illuminated display element and the second or third illuminated display element causes each rounded detent surface to move radially inward through flexure of the flexible member,, circumferentially to another detent notch, and then radially outward.

4. The apparatus of claim 3, wherein there are eight detent notches in each bearing member.

5. The apparatus of claim 3, wherein the electrical circuit comprises::

a first circuit portion within the first illuminated display element;

a second circuit portion within the second illuminated display element, connected to first circuit portion by a plurality of flexible wires extending through the latch array extending outward from the second illuminated display element; and

a third circuit portion within the third illuminated display element, connected to first circuit portion by a plurality of flexible wires extending through the latch array extending outward from the third illuminated display element.

6. The apparatus of claim 2, wherein the first, second, third, and support illuminated display elements can be configured to display an arrow.

7. The apparatus of claim 6, additionally comprising a first attachment slot for attaching the apparatus to a window of a vehicle, with the apparatus displaying an arrow pointing away from the vehicle.

8. The apparatus of claim 7, wherein

the apparatus additionally comprises a support arm including the attachment slot, one or more ferromagnetic structures, a first side, and a second side, opposite the first side,

2 the illuminated display elements are attached to the support arm by the permanent magnets, attracted to the one or more ferromagnetic structures within the support arm.

9. The apparatus of claim 8, wherein the support arm additionally comprises two elongated sections, pivotally attached to one another.

10. The apparatus of claim 7, wherein the support illuminated display element additionally comprises an attachment section including the first attachment slot, extending into the attachment section from a first edge of the attachment section and a second attachment slot, extending into the attachment section from a second edge, opposite the first edge.

1 1. The apparatus of claim 2, wherein

the support illuminated display element is pivotally connected to an illuminated display element in the plurality thereof, and

the apparatus additionally comprises a detent mechanism moving a rounded surface into a notch to releasably hold the support illuminated display element and the a flattened condition.

12. The apparatus of claim 1 , wherein the electrical circuit composes a first circuit portion within the first illuminated display element and a fourth circuit portion within the support illuminated display element, electrically connected to the first circuit portion by flexible wires sliding within one or more openings within the illuminated display elements.

13. The apparatus of claim 1 , wherein the electrical circuit composes a first circuit portion within the first illuminated display element and a fourth circuit portion within the support illuminated display member, electrically connected to the first circuit portion by flexible wires flexing between the illuminated display elements.

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14. The apparatus of claim 1 , wherein;

the support illuminated display element is connected to an illuminated display element in the plurality thereof by an elastomeric block, and

the electrical circuit composes a first circuit portion within the first illuminated display element and a fourth circuit portion within the support illuminated display element, electrically connected to the first circuit portion by flexible wires sliding within one or more openings within the illuminated display elements.

15. The apparatus of claim 1 , wherein each light source assembly comprises: a circuit board assembly including a plurality of light emitting devices exposed along a line;

a reflector including an outward facing reflective and a plurality of holes, disposed at locations of the light emitting devices, and

a transparent cover outwardly disposed from the reflector, including a lens structure aligned with each of the light emitting devices to modify a pattern of loight emitted by the light emitting device.

16. Apparatus for displaying a warning from either side of a vehicle, comprising: a display element displaying an arrow, and

an attachment section including a first attachment slot configured for attaching the apparatus to a window of a vehicle with the arrow pointing away from the vehicle.

17. The apparatus of claim 16, wherein

the attachment section comprises a support arm including the attachment slot, one or more ferromagnetic structures, a first side, and a second side, opposite the first side,

the display element is attached to the support arm by the permanent magnets, attracted to the one or more ferromagnetic structures within the support arm.

18. The apparatus of claim 16, wherein the support illuminated display element additionally comprises an attachment section including the first attachment slot, extending into the attachment section from a first edge of the attachment section and a

4 second attachment slot, extending into the attachment section from a second edge, opposite the first edge.

19. Apparatus comprising:

First and second display elements;

a bearing member extending outward from the first display element to an end surface, having an internal surface including a circular array of evenly spaced detent notches;

a latch array including a circular array of flexible members extending inward from the second display element within the internal surface of the bearing member, wherein each of the flexible members includes a proximal bearing surface configured to slide along the internal surface of the bearing member, a distal latching tooth extending radially outward adjacent the end surface of the bearing member, and a rounded detent surface adjacent the latching tooth, extending radially outward in engagement with one of the detent notches in the bearing member, wherein an application of sufficient torque between the first display element and the second display element causes each rounded detent surface, to move radially inward through flexure of the flexible member,, circumferentially to another detent notch, and then radially outward.

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