Luminance measurement, calibration method, device and electronic equipment based on light sensor
A light sensor and calibration method technology, which is applied in the electronic field, can solve the problems of light sensor calibration deviation, single light source, and does not take into account the different responses of light sensors, so as to achieve accurate calibration coefficients and improve user experience.
Inactive Publication Date: 2020-12-29
OPPO CHONGQING INTELLIGENT TECH CO LTD
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Problems solved by technology
[0005] For this reason, the present invention proposes a light sensor-based brightness measurement and calibration method to achieve more accurate calibration of the light sensor and solve the problem of using a single light source for calibration in the prior art. A technical problem that causes a large deviation in the calibration of the light sensor
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[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0037] The light sensor-based brightness calibration method and device according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0038] The front end of the electronic device is equipped with a light sensor, and the light sensor detects the surrounding light illuminance to adjust the screen brightness. However, there is an error in the measurement of the light illuminance by the light sensor, so the light sensor needs to be calibrated to improve the measurement of ...
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The present invention provides a brightness measurement and calibration method and device based on a light sensor. The brightness measurement method comprises the steps of: obtaining a brightness measurement value of a light sensor; according to an illumination interval corresponding to the brightness measurement value, inquiring a corresponding relation between the illumination intervals and thecalibration coefficients, and determining an applicable calibration coefficient; employing the applicable calibration coefficient to perform calibration of the brightness measurement value and obtainthe calibration value of ambient brightness; obtaining a plurality of illumination intervals; and performing test for the light sensor in each illumination interval to obtain the calibration coefficients corresponding to the illumination intervals, wherein the calibration coefficients are configured to perform calibration of the brightness measurement value of the light sensor to obtain the calibration value of the ambient brightness. The method performs calibration according to different illumination values to obtain different calibration coefficients to more accurately regulate the backlightbrightness so as to improve the user experience and solve the technical problem that a single power source is only employed for calibration to cause large calibration deviation of the light sensor.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a light sensor-based brightness measurement, calibration method, device and electronic equipment. Background technique [0002] At present, electronic devices are widely used in people's lives, for example, smart phones, tablet computers, etc., and users have higher and higher performance requirements for electronic devices. In actual use, the brightness of the screen of an electronic device has also become a user's performance requirement for the electronic device. [0003] The front end of the electronic device is equipped with a light sensor, and the light sensor detects the surrounding light illuminance to adjust the screen brightness. However, there is an error in the measurement of the light illuminance by the light sensor, so the light sensor needs to be calibrated to improve the light sensor. accuracy. In the prior art, a single light source is used in the calibrati...
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IPC IPC(8): G01J1/42G01J1/00G09G3/00
CPCG01J1/00G01J1/42G09G3/00
Inventor 廖新风
Owner OPPO CHONGQING INTELLIGENT TECH CO LTD