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US 10,620,439 B1Granted
Processor thermal management for liquid crystal temperature regulation
AssigneeFacebook Technologies, LLC
InventorRui Zhang
Life of this patent
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Abstract
Thermal control logic receives a temperature signal representative of a temperature of a liquid crystal display (LCD). The thermal control logic is configured to selectively drive a motion actuator to couple a heat conduction element with a heat sinking layer that receives heat from one or more processors. The heat conduction element is coupled between the heat sinking layer and the LCD.
Claims20
A Head Mounted Display (HMD) comprising:
- a heat sinking layer for receiving heat from a processor of the HMD;
- a liquid crystal display (LCD) positioned to display images to a wearer of the HMD;
- a temperature sensor configured to generate a temperature signal representative of a temperature of the LCD;
- a heat conduction element disposed between the LCD and the heat sinking layer;
- a motion actuator coupled to the heat conduction element;
- and
- thermal control logic configured to receive the temperature signal from the temperature sensor, wherein the thermal control logic is configured to selectively transfer the heat to the LCD by selectively driving the motion actuator to couple the heat conduction element with the heat sinking layer in response to the temperature signal.
4 more elements
An apparatus comprising:
- one or more processors;
- a heat sinking layer coupled to sink heat from the one or more processors;
- a motion actuator for coupling to a heat conduction element;
- and
- thermal control logic coupled to drive the motion actuator, wherein the thermal control logic is configured to receive a temperature signal representative of a temperature of a liquid crystal display (LCD), and wherein the thermal control logic is configured to selectively transfer the heat to the LCD by selectively driving the motion actuator to couple the heat conduction element with the heat sinking layer to form a thermal conduction path between the heat sinking layer and the LCD.
2 more elements
A computer-implemented method of regulating a temperature of liquid crystal in a Head Mounted Display (HMD), the method comprising:
- receiving a temperature signal from a temperature sensor coupled to a Liquid Crystal Display (LCD) of the HMD;
- directing heat generated by processors of the HMD to the LCD when the temperature signal is below a lower temperature threshold;
- and
- directing the heat from the processors of the HMD to a chassis of the HMD when the temperature signal is above an upper temperature threshold.
1 more element
Dependencies are inferred from the claim text.