Display device control based on integrated ambient light detection and lighting source characteristics
First Claim
Patent Images
1. A transmissive display comprising:
- an integrated light source for illuminating the transmissive display by emitting light during a first illumination period,an integrated light sensor for generating a sensor signal based on the amount of light present during a first sensing interval after the first illumination period, anda processor for receiving the sensor signal and controlling the light source during a second illumination period after the sensing interval based at least in part on the sensor signal.
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Abstract
Systems and methods are provided for a display device including one or more methods for modifying the display brightness by automatically adapting to ambient lighting conditions.
114 Citations
34 Claims
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1. A transmissive display comprising:
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an integrated light source for illuminating the transmissive display by emitting light during a first illumination period, an integrated light sensor for generating a sensor signal based on the amount of light present during a first sensing interval after the first illumination period, and a processor for receiving the sensor signal and controlling the light source during a second illumination period after the sensing interval based at least in part on the sensor signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for automatically controlling the level of illumination for a transmissive display comprising:
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illuminating the transmissive display by emitting light from a light source during a first illumination period, generating a sensor signal based on the amount of light present at an integrated light sensor during a first sensing interval after the first illumination period, and controlling the emitting of light during a second illumination period after the sensing interval based at least in part on the sensor signal, the controlling including adjusting at least one of the duration of a power period and the amount of power applied to the light source.
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14. A display device comprising:
a transmissive display assembly including; a light source of emitting light over a first period of time to illuminate a portion of the display, a sensor for sensing ambient light over a second period of time, and a processor for controlling the emitting of light from the light source over the first period of time and the sensing of ambient light over the second period of time. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A transmissive display comprising:
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a sensor for generating a sensor signal based on the amount of light present at its receptor, a light source for illuminating the transmissive display, a processor for repeatedly performing the following i) applying power to the light source during a first period to time, ii) waiting a second period to time for the emitted light intensity from the light source to decay below a light sensor interference level, and iii) sensing the ambient light passing through the transmissive display during a third period of time.
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25. A method for automatically controlling the level of illumination for a transmissive display based on measured ambient light levels comprising the steps of:
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A. enabling the light source to emit light and measuring the intensity of the light emitted by the light source during a first time period, B. inhibiting the light source from emitting light and measuring the intensity of ambient light during a second time period, C. processing the light measurements from the first time period and second time period to determine the durations of the first time period and second time period for a subsequent iteration of steps A-C, and D. repeating steps A-C at least once.
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26. A method for controlling a display device comprising:
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illuminating the display device by emitting light from a light emitting diode (“
LED”
) for a first period of time;generating a signal with the LED associated with an amount of ambient light present during a second period of time after the first period of time; and controlling the emitting of light from the LED based on the signal during a third period of time after the second period of time. - View Dependent Claims (27, 28, 29, 30)
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31. A system comprising:
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a display; a light emitting diode (“
LED”
) operable to;emit light to illuminate the display during a first period of time; and stop emitting light and generate a signal associated with the amount of ambient light present during a second period time after the first period of time; and a processor operable to control the emitting of the light by the LED based on the generated signal. - View Dependent Claims (32, 33, 34)
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Specification