Flexible screen backed with rigid ribs
A device is disclosed that includes one or more ribs that allow a flexible device, such as an OLED display, to flex in a first direction but resist flexing in a second direction. The ribs may have stiffening elements attached to them that may lessen flexing in the first direction. Sensors may also be incorporated that signal the stiffening elements. The ribs and stiffening elements have application to a variety of display types such as cell phones, TVs, and movie screens.
1. A device comprising:
a flexible electronic display configurable from a first device configuration having a first curvature to a second device configuration having a second curvature different from the first curvature;
a plurality of ribs physically connected to the flexible electronic display, and configurable from a first rib configuration that prevents the flexible electronic display from flexing in at least one direction to a second rib configuration that allows the flexible electronic display to flex in the at least one direction; and
a plurality of stiffening elements physically connected to the plurality of ribs which, when electrically activated, maintain the plurality of ribs in the first rib configuration, wherein each of the plurality of stiffening elements is connected to at least two adjacent ribs.
2. The device as recited in claim 1 , wherein the flexible electronic display comprises an emissive device.
3. The device as recited in claim 1 , wherein the first device configuration is flat.
4. The device as recited in claim 1 , wherein the plurality of ribs are configured to receive an electrical impulse that causes the plurality of ribs to convert between the first rib configuration and the second rib configuration.
5. The device as recited in claim 1 , further comprising a plurality of rigid members hingedly connected to each of the plurality of ribs.
6. The device as recited in claim 1 , wherein the plurality of ribs are configured to maintain the flexible electronic display in the first device configuration when the plurality of ribs are in the first rib configuration.
7. The device as recited in claim 1 , wherein the plurality of ribs are arranged in a first direction and allow the flexible electronic display to flex only in a second direction that is orthogonal to the first direction.
8. The device as recited in claim 1 , wherein the plurality of ribs are parallel and allow the flexible electronic display to flex in a direction parallel to the ribs.
9. The device as recited in claim 1 , said flexible electronic display configurable in a third device configuration having a third curvature different from the first curvature and the second curvature.
10. The device as recited in claim 1 , wherein the plurality of stiffening elements comprises an element type selected from the group consisting of motorized rods, rotating pins, and pneumatic bladders.
11. The device as recited in claim 1 , wherein at least one of the plurality of stiffening elements is disposed between each pair of adjacent ribs.
12. The device as recited in claim 1 , wherein the device comprises an organic light emitting device.
13. The device as recited in claim 1 , wherein the device is a component of an item selected from the group consisting of: a smartphone, a tablet, a wrist watch, a television, a digital picture frame, a cylindrical lamp shade, and a light source.
14. The device as recited in claim 1 , wherein a larger area of the display is visible in the first display configuration than in the second display configuration.
15. The device as recited in claim 1 , wherein the plurality of stiffening elements alter the rigidity of the device.
16. The device as recited in claim 1 , wherein the device comprises an active matrix backplane.
17. The device as recited in claim 1 , wherein the plurality of stiffening elements are aligned in parallel with the plurality of ribs in the second rib configuration.
18. A device comprising:
a flexible electronic display;
a plurality of ribs;
a locking mechanism that converts the ribs from a first configuration in which the ribs allow the device to flex to a second configuration that causes the flexible electronic display to remain rigid; and
a plurality of stiffening elements physically connected to the plurality of ribs which, when electrically activated, maintain the plurality of ribs in the first rib configuration, wherein each of the plurality of stiffening elements is connected to at least two adjacent ribs.
19. The device as recited in claim 18 , wherein the flexible electronic display comprises an emissive device.
20. The device as recited in claim 18 , wherein the plurality of ribs are attached to the flexible electronic display.
21. The device as recited in claim 18 , wherein the plurality of ribs are configured to receive an electrical impulse that causes the plurality of ribs to convert between the first configuration and the second configuration.
22. The device as recited in claim 18 , wherein each of the plurality of ribs comprises a rigid member.
23. The device as recited in claim 18 , wherein the plurality of ribs are configured to maintain the flexible electronic display in a flat configuration when the plurality of ribs are in the second configuration.
24. The device as recited in claim 18 , wherein the plurality of ribs are arranged in a first direction and allow the flexible electronic display to flex only in a second direction that is orthogonal to the first direction.
25. The device as recited in claim 18 , wherein the plurality of ribs are parallel and allow the flexible electronic display to flex in a direction parallel to the ribs.
26. The device as recited in claim 18 , wherein the plurality of stiffening elements comprises an element type selected from the group consisting of motorized rods, rotating pins, and pneumatic bladders.
27. The device as recited in claim 18 , wherein at least one of the plurality of stiffening elements is disposed between each pair of adjacent ribs.
28. The device as recited in claim 18 , wherein the device comprises an organic light emitting device.
29. The device as recited in claim 18 , wherein the device is a component of an item selected from the group consisting of: a smartphone, a tablet, a wrist watch, a television, a digital picture frame, and a cylindrical lamp shade.
30. The device as recited in claim 18 , wherein the device comprises an active matrix backplane.