Luminescence shock avoidance in display devices
First Claim
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1. A method, comprising:
- activating a display device, wherein activating the display device comprises;
with a sensor, detecting a current ambient light level at the display device; and
after detecting the current ambient light level, increasing a brightness of the display device from a zero brightness level, wherein increasing the brightness of the display device from the zero brightness level comprises;
increasing the brightness of the display device from the zero brightness level to a first brightness level when the current ambient light level is below a threshold; and
increasing the brightness of the display device from the zero brightness level to a second brightness level when the current ambient light level meets or exceeds the threshold.
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Abstract
A luminescence shock avoidance algorithm selectively limits the brightness level of a display device when the display device is activated in a dark environment to prevent the temporary vision impairment that can occur when a display device is activated in a dark environment. The algorithm receives the state of the display (e.g. on or in standby mode), and can optionally receive an ambient lighting value from an ambient light sensor and a user-selectable manual brightness adjustment setting to determine whether luminescence shock avoidance should even be triggered, and if it is triggered, how much should the brightness level of the display be limited.
42 Citations
16 Claims
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1. A method, comprising:
activating a display device, wherein activating the display device comprises; with a sensor, detecting a current ambient light level at the display device; and after detecting the current ambient light level, increasing a brightness of the display device from a zero brightness level, wherein increasing the brightness of the display device from the zero brightness level comprises; increasing the brightness of the display device from the zero brightness level to a first brightness level when the current ambient light level is below a threshold; and increasing the brightness of the display device from the zero brightness level to a second brightness level when the current ambient light level meets or exceeds the threshold. - View Dependent Claims (2, 3, 4, 5)
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6. An electronic device, comprising:
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a display; an ambient light sensor; and circuitry coupled to the display and to the ambient light sensor, wherein the circuitry, prior to activating the display, determines a current ambient light level at the electronic device using the ambient light sensor and then activates the display by increasing the brightness of the display from a zero brightness level, wherein the circuitry activates the display by increasing the brightness level from the zero brightness level to a first brightness level whenever the determined current ambient light level is below a threshold and by increasing the brightness level from the zero brightness level to a second brightness level whenever the determined current ambient light level meets or exceeds the threshold. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method, comprising:
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detecting a triggering activity; with a sensor, detecting a current ambient light level at a display device when the triggering activity is detected; and after detecting the current ambient light level, activating the display device, wherein activating the display device comprises; adjusting a brightness of the display device from a zero brightness level to a first brightness level when the current ambient light level is below a threshold. - View Dependent Claims (13, 14)
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15. A method, comprising:
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detecting a triggering activity; with a sensor, detecting a current ambient light level at a display device when the triggering activity is detected; and after detecting the current ambient light level, activating the display device, wherein activating the display device comprises; adjusting the brightness of the display device from the zero brightness level to a first brightness level when the current ambient light level meets or exceeds a threshold. - View Dependent Claims (16)
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Specification