Synchronous multi-segment hinge for foldable devices
A hinge apparatus may include a plurality of plates configured to be rigidly coupled to a foldable component, and a plurality of gears mechanically coupling the plurality of plates to one another. The hinge apparatus may be operable to expand such that, when the hinge apparatus transitions from a flat state to a folded state, the plurality of gears are configured to cause the plurality of plates to translate laterally apart from one another at a selected rate.
1. A hinge apparatus comprising:
a plurality of plates configured to be rigidly coupled to a foldable component; and
a plurality of gears mechanically coupling the plurality of plates to one another;
wherein the hinge apparatus is operable to expand such that, when the hinge apparatus transitions from a flat state to a folded state, the plurality of gears are configured to cause the plurality of plates to translate laterally apart from one another at a selected rate; and
wherein, when the hinge apparatus is in the flat state, the plurality of plates are in contact with one another, without gaps therebetween.
2. The hinge apparatus of claim 1 , wherein the foldable component is a display panel.
3. The hinge apparatus of claim 2 , wherein the display panel is an organic light emitting diode (OLED) display panel.
4. The hinge apparatus of claim 1 , wherein the plurality of plates includes a center plate configured to be aligned along a fold axis of the foldable component.
5. The hinge apparatus of claim 4 , wherein the plurality of plates further includes two side plates laterally displaced from the center plate.
6. The hinge apparatus of claim 1 , wherein the hinge apparatus is further operable to contract such that, when the hinge apparatus transitions from the folded state to the flat state, the plurality of gears are configured to cause the plurality of plates to translate laterally together toward one another at the selected rate.
7. The hinge apparatus of claim 1 , wherein the selected rate is selected such that when the plurality of plates are rigidly coupled to a back surface of a particular foldable component and when the hinge apparatus transitions from the flat state to the folded state, a front surface of the foldable component experiences no compression or tension forces.
8. A method comprising:
coupling a plurality of plates to one another via a plurality of gears to create a hinge apparatus; and
rigidly coupling the plurality of plates to a foldable component;
wherein the hinge apparatus is operable to expand such that, when the hinge apparatus transitions from a flat state to a folded state, the plurality of gears are configured to cause the plurality of plates to translate laterally apart from one another at a selected rate; and
wherein, when the hinge apparatus is in the flat state, the plurality of plates are in contact with one another, without gaps therebetween.
9. The method of claim 8 , further comprising: coupling a friction-generating component to at least one of the plurality of gears.
10. The method of claim 9 , wherein the friction-generating component is configured to generate sufficient friction to maintain the hinge apparatus in a particular orientation.
11. The method of claim 8 , wherein the plurality of gears includes a plurality of leadscrews.
12. An information handling system comprising:
a foldable display panel;
a hinge apparatus rigidly coupled to the foldable display panel;
wherein the hinge apparatus includes:
a plurality of plates; and
a plurality of gears mechanically coupling the plurality of plates to one another;
wherein the hinge apparatus is operable to expand such that, when the hinge apparatus transitions from a flat state to a folded state, the plurality of gears are configured to cause the plurality of plates to translate laterally apart from one another at a selected rate; and
wherein, when the hinge apparatus is in the flat state, the plurality of plates are in contact with one another, without gaps therebetween.
13. The information handling system of claim 12 , wherein the plurality of gears includes a plurality of leadscrews and a plurality of leadscrew nuts.
14. The information handling system of claim 13 , wherein the display panel is an organic light emitting diode (OLED) display panel.
15. The information handling system of claim 12 , wherein the plurality of plates includes a center plate configured to be aligned along a fold axis of the foldable display panel.
16. The information handling system of claim 15 , wherein the plurality of plates further includes two side plates laterally displaced from the center plate.
17. The information handling system of claim 12 , wherein the hinge apparatus is further operable to contract such that, when the hinge apparatus transitions from the folded state to the flat state, the plurality of gears are configured to cause the plurality of plates to translate laterally together toward one another at the selected rate.
18. The information handling system of claim 12 , wherein the selected rate is selected such that when the hinge apparatus transitions from the flat state to the folded state, a front surface of the foldable display panel experiences no compression or tension forces.