Displays with adaptive spectral characteristics
First Claim
1. A method for displaying images on an array of display pixels in a display having a white point, wherein the array of display pixels includes blue display pixels, the method comprising:
- with display control circuitry, gathering time of day information from a time source; and
adjusting spectral characteristics of display light emitted from the display based on the time of day information while maintaining the white point of the display on a black body curve, wherein adjusting the spectral characteristics of the display light comprises adjusting an overall intensity of blue light emitted from the display based on the time of day information, and wherein adjusting the overall intensity of blue light emitted from the display comprises adjusting maximum power levels delivered to the blue display pixels without shifting a peak wavelength of the blue light.
1 Assignment
0 Petitions
Accused Products
Abstract
An electronic device may include a display having an array of display pixels and having display control circuitry that controls the operation of the display. The display control circuitry may adaptively adjust the spectral characteristics of display light emitted from the display to achieve a desired effect on the human circadian system. For example, the display control circuitry may adjust the spectral characteristics of blue light emitted from the display based on the time of day such that a user'"'"'s exposure to the display light may result in a circadian response similar to that which would be experienced in natural light. The spectral characteristics of blue light emitted from the display may be adjusted by adjusting the relative maximum power levels provided to blue pixels in the display or by shifting the peak wavelength associated with blue light emitted from the display.
-
Citations
11 Claims
-
1. A method for displaying images on an array of display pixels in a display having a white point, wherein the array of display pixels includes blue display pixels, the method comprising:
-
with display control circuitry, gathering time of day information from a time source; and adjusting spectral characteristics of display light emitted from the display based on the time of day information while maintaining the white point of the display on a black body curve, wherein adjusting the spectral characteristics of the display light comprises adjusting an overall intensity of blue light emitted from the display based on the time of day information, and wherein adjusting the overall intensity of blue light emitted from the display comprises adjusting maximum power levels delivered to the blue display pixels without shifting a peak wavelength of the blue light. - View Dependent Claims (2, 3, 4)
-
-
5. A method for displaying images on an array of display pixels in a display having a white point, wherein the array of display pixels includes blue display pixels, the method comprising:
-
with location detection circuitry, gathering geographic location information; with a light sensor, gathering ambient lighting information; and adjusting spectral characteristics of display light emitted from the display based on the geographic location information and the ambient lighting information while maintaining the white point of the display on a black body curve, wherein adjusting the spectral characteristics of the display light comprises adjusting an overall intensity of blue light emitted from the display based on the geographic location information and the ambient light information, and wherein adjusting the overall intensity of blue light emitted from the display comprises adjusting maximum power levels delivered to the blue display pixels without shifting a peak wavelength of the blue light emitted from the display. - View Dependent Claims (6, 7, 8)
-
-
9. A method for displaying images on an array of display pixels in a display having a white point, wherein the array of display pixels comprises blue display pixels, the method comprising:
-
with control circuitry, determining a daylight level; and adjusting spectral characteristics of blue light emitted from the display based on the daylight level while maintaining the white point of the display on a black body curve, wherein adjusting the spectral characteristics of the blue light emitted from the display comprises adjusting an overall intensity of the blue light based on the daylight level, and wherein adjusting the overall intensity of the blue light comprises adjusting maximum power levels delivered to the blue pixels without shifting a peak wavelength of the blue light emitted from the display. - View Dependent Claims (10, 11)
-
Specification