Device and method for controlling screen brightness
First Claim
1. A device for controlling screen brightness comprising a light sensor, a comparator and an integrator, whereinthe light sensor is configured to acquire a brightness signal intensity value of external environment and transmit the brightness signal intensity value to the comparator;
- the comparator is configured to compare the received brightness signal intensity value with a stored brightness signal intensity value to obtain a comparison result; and
the integrator is configured to receive the comparison result, and if the comparison result is that the received brightness signal intensity value is greater than the stored brightness signal intensity value, increase the stored brightness signal intensity value by a fixed value; and
if the comparison result is that the received brightness signal intensity value is less than the stored brightness signal intensity value, decrease the stored brightness signal intensity value by a fixed value, the stored brightness signal intensity value being used to control an electric current amplitude of the current screen brightness.
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Abstract
The present invention provides a device and method for controlling screen brightness. The method comprises: a light sensor acquiring a brightness signal intensity value of external environment and transmitting the brightness signal intensity value to a comparator; the comparator comparing the received brightness signal intensity value with a stored brightness signal intensity value and outputting a comparison result to an integrator; if the comparison result is that the received brightness signal intensity value is greater than the stored brightness signal intensity value, the integrator increasing the stored brightness signal intensity value by a fixed value according to the comparison result; and if the comparison result is that the received brightness signal intensity value is less than the stored brightness signal intensity value, the integrator decreasing the stored brightness signal intensity value by a fixed value according to the comparison result.
53 Citations
8 Claims
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1. A device for controlling screen brightness comprising a light sensor, a comparator and an integrator, wherein
the light sensor is configured to acquire a brightness signal intensity value of external environment and transmit the brightness signal intensity value to the comparator; -
the comparator is configured to compare the received brightness signal intensity value with a stored brightness signal intensity value to obtain a comparison result; and the integrator is configured to receive the comparison result, and if the comparison result is that the received brightness signal intensity value is greater than the stored brightness signal intensity value, increase the stored brightness signal intensity value by a fixed value; and
if the comparison result is that the received brightness signal intensity value is less than the stored brightness signal intensity value, decrease the stored brightness signal intensity value by a fixed value, the stored brightness signal intensity value being used to control an electric current amplitude of the current screen brightness. - View Dependent Claims (2, 3, 4)
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5. A method for controlling screen brightness comprising:
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a light sensor acquiring a brightness signal intensity value of external environment and transmitting the brightness signal intensity value to a comparator; the comparator comparing the received brightness signal intensity value with a stored brightness signal intensity value and outputting a comparison result to an integrator; if the comparison result is that the received brightness signal intensity value is greater than the stored brightness signal intensity value, the integrator increasing the stored brightness signal intensity value by a fixed value according to the comparison result; and if the comparison result is that the received brightness signal intensity value is less than the stored brightness signal intensity value, the integrator decreasing the stored brightness signal intensity value by a fixed value according to the comparison result; wherein the stored brightness signal intensity value is used to control an electric current amplitude of the current screen brightness. - View Dependent Claims (6, 7, 8)
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Specification