Compensating for temperature induced differences in a computing device having dual-displays or a foldable display

Patent metadata

Field	Value
Publication number	US-10614738-B2
Application number	US-201916443983-A
Country	US
Kind code	B2
Filing date	Jun 18, 2019
Priority date	Dec 19, 2017
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

In some examples, a computing device includes a first display in a first housing and a second display in a second housing. The computing device may determine an angle between the first display device and the second display device, determine a first temperature map of the first housing based on the angle and first temperature data received from a first set of temperature sensors in the first housing, and determine a second temperature map of the second housing based on the angle and second temperature data received from a second set of temperature sensors in the second housing. The computing device may determine a temperature difference between the first display device and the second display device, determine an action, and perform the action to reduce the temperature, color, and/or color intensity difference between the first display device and the second display device.

First claim

What is claimed is:

1. A computing device comprising:
a first housing comprising a first display device and a first set of temperature sensors, the first display device comprising a first portion of an organic light emitting diode (OLED) display device;
a second housing comprising a second display device and a second set of temperature sensors, the second display device comprising a second portion of the OLED display device;
wherein the OLED display device couples the first housing to the second housing and acts as a hinge to enable the first housing to be placed at an angle between 0 degrees to 360 degrees relative to the second housing;
one or more processors;
one or more non-transitory computer readable media storing instructions executable by the one or more processors to perform operations comprising:
determining a first temperature map comprising a first plurality of temperature zones of the first housing based at least in part on:
an angle between the first housing and the second housing; and
first temperature data received from the first set of temperature sensors;

determining a second temperature map comprising a second plurality of temperature zones of the second housing based at least in part on:
the angle; and
second temperature data received from the second set of temperature sensors;

determining, based at least in part on the first temperature map and the second temperature map, one or more color differences between the first display device and the second display device; and
performing one or more actions to reduce at least one color difference of the one or more color differences between the first display device and the second display device.

2. The computing device of claim 1 , further comprising:
determining the angle between the first housing and the second housing; and
determining that the angle is greater than a threshold amount; and
determining the one or more color differences between the first display device and the second display device based at least in part on the angle in addition to the first temperature map and the second temperature map.

3. The computing device of claim 1 , further comprising:
a first ambient light sensor in the first housing; and
a second ambient light sensor in the second housing.

4. The computing device of claim 3 , the operations further comprising:
determining first ambient light associated with the first display device based on first ambient light data received from the first ambient light sensor;
determining second ambient light associated with the second display device based on second ambient light data received from the second ambient light sensor;
determining, based at least in part on the first ambient light data and the second ambient light data, an ambient light difference between an amount of ambient light associated with the first display device and with the second display device; and
based at least in part on the ambient light difference, determining the one or more actions.

5. The computing device of claim 1 , the operations further comprising:
modifying, based on a calibration curve, one or more of a red level, a green level, or a blue level associated with at least one of the first display device or the second display device to reduce a power consumption of the computing device.

6. The computing device of claim 1 , wherein the actions comprise at least one of:
increasing a fan speed of at least one fan located in either the first housing or the second housing;
reducing a brightness level of at least one of the first display device or the second display device;
reducing a screen resolution of at least one of the first display device or the second display device;
reducing a clock speed of the one or more processors; or
reducing a number of cores being used by the one or more processors.

7. The computing device of claim 1 , wherein the OLED display device has a thickness of no more than 0.2 millimeters.

8. A computing device comprising:
a first housing comprising a first display device, a first set of temperature sensors, and a first set of radiated heat sensors, wherein the first display device comprises a first organic light emitting diode (OLED) display device;
a second housing comprising a second display device, a second set of temperature sensors, and second set of radiated heat sensors, wherein the second display device comprises a second OLED display device;
wherein the first housing is coupled to the second housing via one or more hinges that enable the first housing to be placed at an angle between 0 degrees to 360 degrees relative to the second housing;
one or more processors;
one or more non-transitory computer readable media storing instructions executable by the one or more processors to perform operations comprising:
determining a first temperature map comprising a first plurality of temperature zones of the first housing based at least in part on:
the angle between the first display device and the second display device;
first temperature data received from the first set of temperature sensors; and
first radiated heat data received from the first set of radiated heat sensors;

determining a second temperature map comprising a second plurality of temperature zones of the second housing based at least in part on:
the angle between the first display device and the second display device;
second temperature data received from the second set of temperature sensors; and
second radiated heat data received from the second set of radiated heat sensors;

determining, based at least in part on the first temperature map and the second temperature map, one or more color differences between the first display device and the second display device;
determining one or more actions based at least in part on the one or more color differences between the first display device and the second display device; and
performing the one or more actions to reduce a temperature difference between the first display device and the second display device.

9. The computing device of claim 8 , further comprising:
a vapor chamber coupled to the one or more processors.

10. The computing device of claim 8 , further comprising:
a thermal spreader comprising:
a first portion of the thermal spreader located in the first housing;
a second portion of the thermal spreader in the second housing; and
a third portion that passes through the one or more hinges to thermally connect the first portion to the second portion.

11. The computing device of claim 8 , further comprising:
a first ambient light sensor in the first housing; and
a second ambient light sensor in the second housing.

12. The computing device of claim 11 , wherein the operations further comprise:
determining first ambient light associated with the first display device based on first ambient light data received from the first ambient light sensor;
determining second ambient light associated with the second display device based on second ambient light data received from the second ambient light sensor;
determining, based at least in part on the first ambient light data and the second ambient light data, an ambient light difference between an amount of ambient light associated with the first display device and with the second display device; and
determining the one or more actions based at least in part on the ambient light difference.

13. The computing device of claim 8 , the operations further comprising:
modifying, based on a calibration curve, one or more of a red level, a green level, or a blue level associated with at least one of the first display device or the second d

Assignees

• Dell Products Lp

Inventors

• Aurongzeb Deeder M
• Woo Joohyun
• Hsu Claire Hao Wen

Classifications

• G09G3/3208

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• G06F1/1618

  the display being foldable up to the back of the other housing with a single degree of freedom, e.g. by 360° rotation over the axis defined by the rear edge of the base enclosure · CPC title

• G09G2320/0666

  for control of colour parameters, e.g. colour temperature · CPC title

• G09G2320/0242

  Compensation of deficiencies in the appearance of colours · CPC title

• G09G2330/021

  Power management, e.g. power saving · CPC title