ADJUSTING COLOR PALETTES USED FOR DISPLAYING IMAGES ON A DISPLAY DEVICE BASED ON AMBIENT LIGHT LEVELS

• US 20180350323A1
• Filed: 09/21/2017
• Published: 12/06/2018
• Est. Priority Date: 06/01/2017
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: WHITEHEAD, Nathan Oliver John, INAMDAR, Prasanna Chandrakant, PARK, Shiae
• Granted Patent: US 10,446,114 B2
• Time in Patent Office: Days
• CPC Class Codes: G09G 2320/0666 for control of colour parameters, e.g. colour temperature
• CPC Class Codes: G09G 2320/0693 Calibration of display systems
• CPC Class Codes: G09G 2360/141 the light conveying information used for selecting or modulating the light emitting or modulating element
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 5/026 Control of mixing and/or overlay of colours in general G09G5/022 and G09G5/024 take precedence
• CPC Class Codes: G09G 5/06 using colour palettes, e.g. look-up tables

Abstract

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus of adjusting color palettes for a display device based on ambient light levels are provided. The apparatus determines a first ambient light level based at least in part on first information received from one or more sensors. A first color palette associated with the first ambient light level is generated. The apparatus determines a first screen brightness level associated with the first ambient light level and displays a first image on a display screen using the first color palette and the first screen brightness level.

Claims

1. A method of adjusting color palettes for a display device based on ambient light levels, comprising:

determining a first ambient light level based at least in part on first information received from one or more sensors;

generating a first color palette associated with the first ambient light level;

determining a first screen brightness level associated with the first ambient light level; and

displaying a first image on a display screen using the first color palette and the first screen brightness level.

2. The method of claim 1, wherein the first information is associated with a plurality of ambient light levels measured over a time period by the one or more sensors, and wherein the determining the first ambient light level based at least in part on the first information received from the one or more sensors comprises:

determining the first ambient light level as an average of the plurality of ambient light levels over the time period.

3. The method of claim 1, wherein the generating the first color palette associated with the first ambient light level comprises:

selecting two or more predetermined color palettes from a plurality of predetermined color palettes based as least in part on the first ambient light level; and

interpolating between the two or more predetermined color palettes based on the first ambient light level to generate the first color palette.

4. The method of claim 3, wherein:

each of the plurality of predetermined color palettes is associated with a different ambient light level; and

the two or more predetermined color palettes selected from the plurality of predetermined color palettes are associated with ambient light levels that are closest to the first ambient light level.

5. The method of claim 1, wherein the determining the first screen brightness level associated with the first ambient light level comprises:

selecting two or more screen brightness levels from a plurality of screen brightness levels based as least in part on the first ambient light level; and

interpolating between the two or more screen brightness levels using the first ambient light level to determine the first screen brightness level associated with the first ambient light level.

6. The method of claim 1, wherein the displaying the first image on the display screen using the first color palette and the first screen brightness level comprises:

receiving information associated with one or more first graphical assets associated with the first ambient light level and first timekeeping state information; and

displaying the one or more first graphical assets and the timekeeping state information using the first color palette and the first screen brightness level.

7. The method of claim 6, wherein:

one or more second graphical assets are associated with a second ambient light level;

the second ambient light level is different than the first ambient light level; and

the one or more second graphical assets include at least one different graphical asset than the one or more first graphical assets.

8. The method of claim 1, wherein the display screen includes a plurality of pixels, and wherein the displaying the first image on the display screen using the first color palette and the first screen brightness level comprises:

illuminating a first number of pixels of the plurality of pixels as a first color based on one or more of the first color palette, the first screen brightness level, or the first ambient light level; and

illuminating a second number of pixels of the plurality of pixels as a second color based one or more of the first color palette, the first screen brightness level, or the first ambient light level.

9. The method of claim 8, wherein:

the first number of pixels is mapped to a first color index in a plurality of color palettes, the first color index being mapped to the first color and the first ambient light level; and

the second number of pixels is mapped to a second color index in the plurality of color palettes, the second color index being mapped to the second color and the first ambient light level.

10. The method of claim 9, wherein:

the first color index is mapped to a non-black color at the first ambient light level; and

the first color index is mapped to a black color at a second ambient light level.

11. The method of claim 1, further comprising:

determining that the first ambient light level changes to a second ambient light level;

generating a second color palette associated with the second ambient light level;

determining a second screen brightness level associated with the second ambient light level; and

displaying a second image on the display screen based on the second color palette and the second screen brightness level.

12. The method of claim 1, further comprising:

determining a second ambient light level based at least in part on second information received from the one or more sensors;

modifying at least one graphical one asset included in the first image based at least in part on the second ambient light level; and

displaying a second image on the display screen including the modified at least one graphical asset.

13. The method of claim 12, wherein the modifying comprises modifying a first layout of the at least one graphical asset of the first image to a second layout of the at least one graphical asset, the first layout being different than the second layout.

14. The method of claim 1, wherein the first color palette is generated based at least in part on processing capabilities of the display device.

15. An apparatus for adjusting color palettes for a display device based on ambient light levels, comprising:

means for determining a first ambient light level based at least in part on first information received from one or more sensors;

means for generating a first color palette associated with the first ambient light level;

means for determining a first screen brightness level associated with the first ambient light level; and

means for displaying a first image on a display screen using the first color palette and the first screen brightness level.

16. The apparatus of claim 15, wherein the first information is associated with a plurality of ambient light levels measured over a time period by the one or more sensors, and wherein the means for determining the first ambient light level based at least in part on the first information received from the one or more sensors is configured to:

determine the first ambient light level as an average of the plurality of ambient light levels over the time period.

17. The apparatus of claim 15, wherein the means for generating the first color palette associated with the first ambient light level is configured to:

select two or more predetermined color palettes from a plurality of predetermined color palettes based as least in part on the first ambient light level; and

interpolate between the two or more predetermined color palettes based on the first ambient light level to generate the first color palette.

18. The apparatus of claim 17, wherein:

each of the plurality of predetermined color palettes is associated with a different ambient light level; and

the two or more predetermined color palettes selected from the plurality of predetermined color palettes are associated with ambient light levels that are closest to the first ambient light level.

19. The apparatus of claim 15, wherein the means for determining the first screen brightness level associated with the first ambient light level configured to:

select two or more screen brightness levels from a plurality of screen brightness levels based as least in part on the first ambient light level; and

interpolate between the two or more screen brightness levels using the first ambient light level to determine the first screen brightness level associated with the first ambient light level.

20. The apparatus of claim 15, wherein the means for displaying the first image on the display screen using the first color palette and the first screen brightness level is configured to:

receive information associated with one or more first graphical assets associated with the first ambient light level and first timekeeping state information; and

display the one or more first graphical assets and the timekeeping state information using the first color palette and the first screen brightness level.

21. The apparatus of claim 20, wherein:

one or more second graphical assets are associated with a second ambient light level;

the second ambient light level is different than the first ambient light level; and

the one or more second graphical assets include at least one different graphical asset than the one or more first graphical assets.

22. The apparatus of claim 15, wherein the display screen includes a plurality of pixels, and wherein the means for displaying the first image on the display screen using the first color palette and the first screen brightness level is configured to:

illuminate a first number of pixels of the plurality of pixels as a first color based on one or more of the first color palette, the first screen brightness level, or the first ambient light level; and

illuminate a second number of pixels of the plurality of pixels as a second color based one or more of the first color palette, the first screen brightness level, or the first ambient light level.

23. The apparatus of claim 22, wherein:

the first number of pixels is mapped to a first color index in a plurality of color palettes, the first color index being mapped to the first color and the first ambient light level; and

the second number of pixels is mapped to a second color index in the plurality of color palettes, the second color index being mapped to the second color and the first ambient light level.

24. The apparatus of claim 23, wherein:

the first color index is mapped to a non-black color at the first ambient light level; and

the first color index is mapped to a black color at a second ambient light level.

25. The apparatus of claim 15, further comprising:

means for determining that the first ambient light level changes to a second ambient light level;

means for generating a second color palette associated with the second ambient light level;

means for determining a second screen brightness level associated with the second ambient light level; and

means for displaying a second image on the display screen based on the second color palette and the second screen brightness level.

26. The apparatus of claim 15, further comprising:

means for determining a second ambient light level based at least in part on second information received from the one or more sensors;

means for modifying at least one graphical one asset included in the first image based at least in part on the second ambient light level; and

means for displaying a second image on the display screen including the modified at least one graphical asset.

27. The apparatus of claim 26, further comprising means for modifying a first layout of the at least one graphical asset of the first image to a second layout of the at least one graphical asset of the second image, the first layout being different than the second layout.

28. The apparatus of claim 15, wherein the first color palette is generated based at least in part on processing capabilities of the display device.

29. An apparatus for adjusting color palettes for a display device based on ambient light levels, comprising:

a memory; and

at least one processor coupled to the memory and configured to;

determine a first ambient light level based at least in part on first information received from one or more sensors;

generate a first color palette associated with the first ambient light level;

determine a first screen brightness level associated with the first ambient light level; and

display a first image on a display screen using the first color palette and the first screen brightness level.

30. The apparatus of claim 29, wherein the first information is associated with a plurality of ambient light levels measured over a time period by the one or more sensors, and wherein the at least one processor is configured to determine the first ambient light level based at least in part on the first information received from the one or more sensors by:

determining the first ambient light level as an average of the plurality of ambient light levels over the time period.

31. The apparatus of claim 29, wherein the at least one processor is configured to generate the first color palette associated with the first ambient light level by:

selecting two or more predetermined color palettes from a plurality of predetermined color palettes based as least in part on the first ambient light level; and

interpolating between the two or more predetermined color palettes based on the first ambient light level to generate the first color palette.

32. The apparatus of claim 31, wherein:

each of the plurality of predetermined color palettes is associated with a different ambient light level; and

the two or more predetermined color palettes selected from the plurality of predetermined color palettes are associated with ambient light levels that are closest to the first ambient light level.

33. The apparatus of claim 29, wherein the at least one processor is configured to determine the first screen brightness level associated with the first ambient light level by:

selecting two or more screen brightness levels from a plurality of screen brightness levels based as least in part on the first ambient light level; and

interpolating between the two or more screen brightness levels using the first ambient light level to determine the first screen brightness level associated with the first ambient light level.

34. The apparatus of claim 29, wherein the at least one processor is configured to display the first image on the display screen using the first color palette and the first screen brightness level by:

receiving information associated with one or more first graphical assets associated with the first ambient light level and first timekeeping state information; and

displaying the one or more first graphical assets and the timekeeping state information using the first color palette and the first screen brightness level.

35. The apparatus of claim 34, wherein:

one or more second graphical assets are associated with a second ambient light level;

the second ambient light level is different than the first ambient light level; and

the one or more second graphical assets include at least one different graphical asset than the one or more first graphical assets.

36. The apparatus of claim 29, wherein the display screen includes a plurality of pixels, and wherein the at least one processor is configured to display the first image on the display screen using the first color palette and the first screen brightness level by:

illuminating a first number of pixels of the plurality of pixels as a first color based on one or more of the first color palette, the first screen brightness level, or the first ambient light level; and

illuminating a second number of pixels of the plurality of pixels as a second color based one or more of the first color palette, the first screen brightness level, or the first ambient light level.

37. The apparatus of claim 36, wherein:

the first number of pixels is mapped to a first color index in a plurality of color palettes, the first color index being mapped to the first color and the first ambient light level; and

the second number of pixels is mapped to a second color index in the plurality of color palettes, the second color index being mapped to the second color and the first ambient light level.

38. The apparatus of claim 37, wherein:

the first color index is mapped to a non-black color at the first ambient light level; and

the first color index is mapped to a black color at a second ambient light level.

39. The apparatus of claim 29, wherein the at least one processor is further configured to:

determine that the first ambient light level changes to a second ambient light level;

generate a second color palette associated with the second ambient light level;

determine a second screen brightness level associated with the second ambient light level; and

display a second image on the display screen based on the second color palette and the second screen brightness level.

40. The apparatus of claim 29, wherein the at least one processor is further configured to:

determine a second ambient light level based at least in part on second information received from the one or more sensors;

modify at least one graphical one asset included in the first image based at least in part on the second ambient light level; and

display a second image on the display screen including the modified at least one graphical asset.

41. The apparatus of claim 40, wherein the at least one processor is further configured to modify a first layout of the at least one graphical asset of the first image to a second layout of the at least one graphical asset of the second image, the first layout being different than the second layout.

42. The apparatus of claim 29, wherein the at least one processor is further configured to generate the first color palette based at least in part on processing capabilities of the display device.

43. A computer-readable medium storing computer executable code for adjusting color palettes for a display device based on ambient light levels, comprising code to:

determine a first ambient light level based at least in part on first information received from one or more sensors;

generate a first color palette associated with the first ambient light level;

determine a first screen brightness level associated with the first ambient light level; and

display a first image on a display screen using the first color palette and the first screen brightness level.

44. The computer-readable medium of claim 43, further comprising code to determine the first ambient light level as an average of a plurality of ambient light levels over a time period.

45. The computer-readable medium of claim 43, further comprising code to:

select two or more predetermined color palettes from a plurality of predetermined color palettes based as least in part on the first ambient light level; and

interpolate between the two or more predetermined color palettes based on the first ambient light level to generate the first color palette.

46. The computer-readable medium of claim 45, wherein:

each of the plurality of predetermined color palettes is associated with a different ambient light level; and

the two or more predetermined color palettes selected from the plurality of predetermined color palettes are associated with ambient light levels that are closest to the first ambient light level.

47. The computer-readable medium of claim 43, further comprising code to:

select two or more screen brightness levels from a plurality of screen brightness levels based as least in part on the first ambient light level; and

interpolate between the two or more screen brightness levels using the first ambient light level to determine the first screen brightness level associated with the first ambient light level.

48. The computer-readable medium of claim 43, further comprising code to:

receive information associated with one or more first graphical assets associated with the first ambient light level and first timekeeping state information; and

display the one or more first graphical assets and the timekeeping state information using the first color palette and the first screen brightness level.

49. The computer-readable medium of claim 48, wherein:

one or more second graphical assets are associated with a second ambient light level;

the second ambient light level is different than the first ambient light level; and

the one or more second graphical assets include at least one different graphical asset than the one or more first graphical assets.

50. The computer-readable medium of claim 43, wherein the display screen includes a plurality of pixels, and wherein the code to display the first image on the display screen using the first color palette and the first screen brightness level is configured to:

illuminate a first number of pixels of the plurality of pixels as a first color based on one or more of the first color palette, the first screen brightness level, or the first ambient light level; and

illuminate a second number of pixels of the plurality of pixels as a second color based one or more of the first color palette, the first screen brightness level, or the first ambient light level.

51. The computer-readable medium of claim 50, wherein:

the first number of pixels is mapped to a first color index in a plurality of color palettes, the first color index being mapped to the first color and the first ambient light level; and

the second number of pixels is mapped to a second color index in the plurality of color palettes, the second color index being mapped to the second color and the first ambient light level.

52. The computer-readable medium of claim 51, wherein:

the first color index is mapped to a non-black color at the first ambient light level; and

the first color index is mapped to a black color at a second ambient light level.

53. The computer-readable medium of claim 43, further comprising code to:

determine that the first ambient light level changes to a second ambient light level;

generate a second color palette associated with the second ambient light level;

determine a second screen brightness level associated with the second ambient light level; and

display a second image on the display screen based on the second color palette and the second screen brightness level.

54. The computer-readable medium of claim 43, further comprising code to:

determine a second ambient light level based at least in part on second information received from the one or more sensors;

modify at least one graphical one asset included in the first image based at least in part on the second ambient light level; and

display a second image on the display screen including the modified at least one graphical asset.

55. The computer-readable medium of claim 54, further comprising code to modify a first layout of the at least one graphical asset of the first image to a second layout of the at least one graphical asset of the second image, the first layout being different than the second layout.

56. The computer-readable medium of claim 43, further comprising code to generate the first color palette based at least in part on processing capabilities of the display device.