Information handling system monitor with selectively curved and flat display panel
An information handling system display monitor transitions between flat and curved configurations by actuation of a shaped memory alloy wire within the display monitor housing. For example, a nickel titanium wire is heated by application of current across the wire to transition its crystalline form, thereby shortening the wire to adjust the configuration of a foldable display film, such as an OLED display film. Separate shaped memory alloy wires may be used to achieve foldable display film movement in each direction, or actuation of a shaped memory alloy wire in one direction may generate bias in a spring in the opposite direction that is released when a change in foldable display film configuration is desired.
1. A display monitor comprising:
a housing having a front face;
a foldable display disposed in the front face and foldable between a flat configuration and a curved configuration;
a shaped memory alloy actuator interfaced with the foldable display and operable in response to heat applied to a shaped memory alloy wire to actuate the foldable display between the flat and curved configurations; and
a current source interfaced with the shaped memory alloy wire, the current source operable apply a current to selectively heat the shaped memory alloy wire to actuate the foldable display;
wherein:
the shape memory alloy wire has first length when below a predetermined temperature and a second length when above the predetermined temperature, the first length greater than the second length;
the shape memory alloy wire couples at a central region of the foldable display to bias the foldable display to the curved configuration; and
the shape memory alloy wire transitions from the first length to the second length in response to heat, the second length applying a force to transition the foldable display from the curved configuration to the flat configuration.
2. The display monitor of claim 1 further comprising a latch interfaced with the foldable display in the flat configuration to hold the foldable display in the flat configuration when the shape memory alloy wire has the first length and to release the foldable display from the flat configuration to the curved configuration when the shape metal alloy wire has the first length.
3. The display monitor of claim 2 wherein the shape memory alloy wire winds across the display monitor width plural times.
4. The display monitor of claim 1 further comprising an optical fiber coupled to the housing and configured to bend in the curved configuration.
5. A display monitor comprising:
a housing having a front face;
a foldable display disposed in the front face and foldable between a flat configuration and a curved configuration;
a shaped memory alloy actuator interfaced with the foldable display and operable in response to heat applied to a shaped memory alloy wire to actuate the foldable display between the flat and curved configurations; and
a current source interfaced with the shaped memory alloy wire, the current source operable apply a current to selectively heat the shaped memory alloy wire to actuate the foldable display;
wherein:
the shape memory alloy wire has first length when below a predetermined temperature and a second length when above the predetermined temperature, the first length greater than the second length;
the shape memory alloy wire couples at opposing sides of the housing; and
the shape memory alloy wire transitions from the first length to the second length to pull opposing sides of the foldable display towards the housing center and transition the foldable display to the curved configuration.
6. A display monitor comprising:
a housing having a front face;
a foldable display disposed in the front face and foldable between a flat configuration and a curved configuration;
a shaped memory alloy actuator interfaced with the foldable display and operable in response to heat applied to a shaped memory alloy wire to actuate the foldable display between the flat and curved configurations; and
a current source interfaced with the shaped memory alloy wire, the current source operable apply a current to selectively heat the shaped memory alloy wire to actuate the foldable display;
an upper arm and a lower arm, each of the upper and lower arms coupling to first and second brackets at opposing sides of the housing;
a first shaped memory alloy wire coupled between the upper and lower arms to draw the upper and lower arms towards each other and the foldable display to a flat configuration in response to heat applied to the first shaped memory alloy wire; and
a second shaped memory alloy wire coupled between the upper and lower arms to draw the upper and lower arms apart from each other and the foldable display to a curved configuration in response to heat applied to the second shaped memory alloy wire.