Device and method of controlling brightness of a display based on ambient lighting conditions
First Claim
1. A display device comprising:
- an auxiliary light source configured to provide supplemental light to a reflective display;
a sensor system configured to determine an illuminance of ambient light illuminating the reflective display; and
a controller in communication with the sensor system, the controller configured to adjust the auxiliary light source to provide an amount of supplemental light to the reflective display based at least in part on the illuminance of the ambient light, wherein the amount of supplemental light;
remains substantially the same on average or substantially increases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is below a first threshold, andsubstantially decreases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is above a second threshold that is greater than or equal to the first threshold,wherein the amount of supplemental light has a peak value in a range from 20 nits to 30 nits for illuminance of the ambient light that is above the first threshold and below the second threshold.
2 Assignments
0 Petitions
Accused Products
Abstract
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for controlling brightness of a display based on ambient light conditions. In one aspect, a display device can include a reflective display and an auxiliary light source configured to provide supplemental light to the display. The display device further can include a sensor system configured to determine an illuminance of ambient light, and a controller configured to adjust the auxiliary light source to provide an amount of supplemental light to the display based at least in part on the determined illuminance. In one aspect, the amount of supplemental light remains substantially the same or substantially increases in response to increasing illuminance when the illuminance is below a first threshold, and substantially decreases in response to increasing illuminance when the illuminance is above a second threshold that is greater than or equal to the first threshold.
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Citations
61 Claims
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1. A display device comprising:
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an auxiliary light source configured to provide supplemental light to a reflective display; a sensor system configured to determine an illuminance of ambient light illuminating the reflective display; and a controller in communication with the sensor system, the controller configured to adjust the auxiliary light source to provide an amount of supplemental light to the reflective display based at least in part on the illuminance of the ambient light, wherein the amount of supplemental light; remains substantially the same on average or substantially increases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is below a first threshold, and substantially decreases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is above a second threshold that is greater than or equal to the first threshold, wherein the amount of supplemental light has a peak value in a range from 20 nits to 30 nits for illuminance of the ambient light that is above the first threshold and below the second threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A display device comprising:
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means for providing supplemental light to a reflective display; means for determining an illuminance of ambient light illuminating the reflective display; and means for adjusting the supplemental light means, the adjusting means configured to determine an amount of supplemental light based at least in part on the determined illuminance of the ambient light, wherein the amount of supplemental light; remains substantially the same on average or substantially increases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is below a first threshold, and substantially decreases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is above a second threshold that is greater than or equal to the first threshold, wherein the amount of supplemental light has a peak value in a range from 20 nits to 30 nits for illuminance of the ambient light that is above the first threshold and below the second threshold. - View Dependent Claims (25, 26, 27, 28)
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29. A method of controlling supplemental lighting of a reflective display, the method comprising:
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determining by a light sensor an illuminance of ambient light illuminating the reflective display; and automatically adjusting an auxiliary light source to provide an amount of supplemental light to the reflective display based at least in part on the illuminance of the ambient light, wherein the adjusting includes; maintaining substantially the same amount of supplemental light on average or substantially increasing on average the amount of supplemental light in response to increasing illuminance of the ambient light when the illuminance of the ambient light is below a first threshold, and substantially decreasing on average the amount of supplemental light in response to increasing illuminance of the ambient light when the illuminance of the ambient light is above a second threshold that is greater than or equal to the first threshold, wherein the amount of supplemental light has a peak value in a range from 20 nits to 30 nits for illuminance of the ambient light that is above the first threshold and below the second threshold. - View Dependent Claims (30, 31, 32, 33)
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34. A non-transitory tangible computer storage medium having stored thereon instructions for controlling supplemental lighting of a reflective display of a display device, the instructions when executed by a computing system, causing the computing system to perform operations, the operations comprising:
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receiving from a computer-readable medium a determined illuminance of ambient light illuminating the reflective display; determining an amount of supplemental light to provide to the reflective display based at least in part on the illuminance of the ambient light, wherein the amount of supplemental light; remains substantially the same on average or substantially increases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is below a first threshold, and substantially decreases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is above a second threshold that is greater than or equal to the first threshold, wherein the amount of supplemental light has a peak value in a range from 20 nits to 30 nits for illuminance of the ambient light that is above the first threshold and below the second threshold; and transmitting a supplemental lighting adjustment based at least in part on the amount of supplemental light to a light source configured to provide light to the reflective display. - View Dependent Claims (35, 36, 37, 38)
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39. A display device comprising:
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an auxiliary light source configured to provide supplemental light to a reflective display; a sensor system configured to determine an illuminance of ambient light illuminating the reflective display; and a controller in communication with the sensor system, the controller configured to adjust the auxiliary light source to provide an amount of supplemental light to the reflective display based at least in part on the illuminance of the ambient light, wherein the amount of supplemental light; remains substantially the same on average or substantially increases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is below a first threshold, and substantially decreases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is above a second threshold that is greater than or equal to the first threshold, wherein the amount of supplemental light is approximately the same amount on average and in a range from 20 nits to 30 nits when the illuminance of the ambient light is between the first and second thresholds. - View Dependent Claims (40, 41, 42, 43, 44)
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45. A non-transitory tangible computer storage medium having stored thereon instructions for controlling supplemental lighting of a reflective display of a display device, the instructions when executed by a computing system, causing the computing system to perform operations, the operations comprising:
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receiving from a computer-readable medium a determined illuminance of ambient light illuminating the reflective display; determining an amount of supplemental light to provide to the reflective display based at least in part on the illuminance of the ambient light, wherein the amount of supplemental light; remains substantially the same on average or substantially increases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is below a first threshold, and substantially decreases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is above a second threshold that is greater than or equal to the first threshold, wherein the amount of supplemental light is approximately the same amount on average and in a range from 20 nits to 30 nits when the illuminance of the ambient light is between the first and second thresholds; and transmitting a supplemental lighting adjustment based at least in part on the amount of supplemental light to a light source configured to provide light to the reflective display. - View Dependent Claims (46, 47, 48, 49)
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50. A display device comprising:
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an auxiliary light source configured to provide supplemental light to a reflective display; a sensor system configured to determine an illuminance of ambient light illuminating the reflective display; and a controller in communication with the sensor system, the controller configured to adjust the auxiliary light source to provide an amount of supplemental light to the reflective display based at least in part on the illuminance of the ambient light, wherein the amount of supplemental light; remains substantially the same on average or substantially increases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is below a first threshold, and substantially decreases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is above a second threshold that is greater than or equal to the first threshold, wherein the amount of supplemental light remains approximately the same on average and is in a range from 5 nits to 10 nits when the illuminance of the ambient light is below a third threshold that is less than the first threshold. - View Dependent Claims (51, 52, 53, 54, 55, 56)
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57. A non-transitory tangible computer storage medium having stored thereon instructions for controlling supplemental lighting of a reflective display of a display device, the instructions when executed by a computing system, causing the computing system to perform operations, the operations comprising:
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receiving from a computer-readable medium a determined illuminance of ambient light illuminating the reflective display; determining an amount of supplemental light to provide to the reflective display based at least in part on the illuminance of the ambient light, wherein the amount of supplemental light; remains substantially the same on average or substantially increases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is below a first threshold, and substantially decreases on average in response to increasing illuminance of the ambient light when the illuminance of the ambient light is above a second threshold that is greater than or equal to the first threshold, wherein the amount of supplemental light remains approximately the same on average and is in a range from 5 nits to 10 nits when the illuminance of the ambient light is below a third threshold that is less than the first threshold; and transmitting a supplemental lighting adjustment based at least in part on the amount of supplemental light to a light source configured to provide light to the reflective display. - View Dependent Claims (58, 59, 60, 61)
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Specification