Systems and methods for adaptive color accuracy with multiple sensors to control a display's white point and to calibrate the display using pre-boot diagnostics
Systems and methods for adaptive color accuracy with multiple sensors to control a display's white point and to calibrate the display using pre-boot diagnostics are described. In some embodiments, an Information Handling System (IHS) may include a processor and a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution, cause the IHS to: receive a first measurement from a first Ambient Light Sensor (ALS) disposed on a display portion of the IHS; receive a second measurement from a second ALS, wherein the second ALS is configured to face the display portion in response to IHS being in a closed posture; and control a brightness of a display based upon at least one of the first or second measurements.
1. An Information Handling System (IHS), comprising:
a processor; and
a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution, cause the IHS to:
receive a first measurement from a first Ambient Light Sensor (ALS) disposed on a display portion of the IHS;
receive a second measurement from a second ALS, wherein the second ALS is configured to face the display portion in response to IHS being in a closed posture;
determine if the first measurement and the second measurement are different from previous measurements by an amount greater than a threshold value;
in response to the determination, select one of the first or second ALS sensors, wherein the selected sensor presents least variation from the previous measurements;
calculate a correction factor for the selected ALS sensor using a lookup table (LUT) with color correction values and based upon context information;
tag the selected ALS sensor as the primary sensor; and
control a brightness of the display using a reading from the selected ALS sensor.
2. The IHS of claim 1 , wherein the display portion comprises an Organic Light-Emitting Diode (OLED) panel.
3. The IHS of claim 1 , wherein the second ALS is disposed on a palmrest of the IHS.
4. The IHS of claim 1 , wherein the second ALS is disposed on a keyboard of the IHS.
5. The IHS of claim 1 , wherein at least one of the first or second ALSs comprises an XYZ or RGB color sensor.
6. The IHS of claim 1 , wherein the context information comprises at least one: of an identity of a user, a user's proximity to the IHS, an identity of an application currently under execution, a duration of execution of the application, or a user's gaze direction.
7. The IHS of claim 1 , wherein the context information comprises an angle of a hinge coupling two portions of the IHS.
8. The IHS of claim 1 , wherein the program instructions, upon execution, further cause the IHS to:
determine that the IHS is in the closed posture;
render a pre-determined image pattern on the display; and
obtain the second measurement in response to the rendering.
9. The IHS of claim 8 , wherein the program instructions, upon execution, further cause the IHS to:
update the LUT based upon the second measurement; and
use the LUT to render a subsequent image on the display upon reboot of the IHS.
10. A memory storage device having program instructions stored thereon that, upon execution by one or more processors of an Information Handling System (IHS), cause the IHS to:
receive a first measurement from a first Ambient Light Sensor (ALS) disposed on a display portion of the IHS;
receive a second measurement from a second ALS, wherein the second ALS is configured to face the display portion in response to IHS being in a closed posture;
determine if the first measurement and the second measurement are different from previous measurements by an amount greater than a threshold value;
in response to the determination, select one of the first or second ALS sensors, wherein the selected sensor presents least variation from the previous measurements;
calculate a correction factor for the selected ALS sensor using a lookup table (LUT) with color correction values and based upon context information;
tag the selected ALS sensor as the primary sensor; and
control a brightness of the display using a reading from the selected ALS sensor.
11. The memory storage device of claim 10 , wherein the context information comprises an angle of a hinge coupling two portions of the IHS.
12. The memory storage device of claim 10 , wherein the program instructions, upon execution, further cause the IHS to:
determine that the IHS is in the closed posture;
render a pre-determined image pattern on the display; and
obtain the second measurement in response to the rendering.
13. The memory storage device of claim 12 , wherein the program instructions, upon execution, further cause the IHS to:
update the LUT based upon the second measurement; and
use the LUT to render a subsequent image on the display upon reboot of the IHS.
14. A method, comprising:
receiving a first measurement from a first Ambient Light Sensor (ALS) disposed on a display portion of an Information Handling System (IHS);
receiving a second measurement from a second ALS, wherein the second ALS is configured to face the display portion in response to IHS being in a closed posture;
determining if the first measurement and the second measurement are different from previous measurements by an amount greater than a threshold value;
in response to the determination, selecting one of the first or second ALS sensors, wherein the selected sensor presents least variation from the previous measurements;
calculating a correction factor for the selected ALS sensor using a lookup table (LUT) with color correction values and based upon context information;
tagging the selected ALS sensor as the primary sensor; and
controlling a brightness of the display using a reading from the selected ALS sensor.
15. The method of claim 14 , wherein the context information comprises an angle of a hinge coupling two portions of the IHS.
16. The method of claim 14 , further comprising:
determining that the IHS is in the closed posture;
rendering a pre-determined image pattern on the display; and
obtaining the second measurement in response to the rendering.
17. The method of claim 16 , further comprising:
updating the LUT based upon the second measurement; and
using the LUT to render a subsequent image on the display upon reboot of the IHS.