Environment light sensor and electronic equipment

Abstract

The invention provides an environment light sensor and electronic equipment. The environment light sensor is arranged below a screen of the electronic equipment; the environment light sensor comprises a first receiving unit, a second receiving unit, a first linear polaroid and a first quarter-wave plate; the first linear polaroid is located above the first receiving unit; the first quarter-wave plate is located above the first linear polaroid; and at most one of the first linear polaroid and the first quarter-wave plate extends to a position above the second receiving unit; the first quarter-wave plate and the first linear polaroid can enable screen leaked light and environment transmitted light to penetrate through; the first linear polaroid is further used for blocking the environment transmitted light penetrating through the first quarter-wave plate to penetrate through, so that the first receiving unit receives the screen leaked light, and the second receiving unit receives the sum of the screen leaked light and the environment transmitted light; and the intensity of the environment transmitted light can be obtained through the difference between the screen leaked light and the sum of the screen leaked light and the environment transmitted light, so that the environmental transmitted light and the screen leaked light are distinguished, and the detection accuracy of the environment light sensor is improved.

Description

technical field

[0001] The present application relates to the field of electronic technology, in particular to an ambient light sensor and electronic equipment. Background technique

[0002] In order to allow human eyes to browse the display screen more comfortably when the ambient light changes, most of the existing electronic devices include an ambient light sensor to detect the brightness of the external ambient light where the electronic device is located, so as to adjust the brightness of the display screen. For example, when the external ambient light intensity becomes weak, the ambient light sensor detects a weak ambient light signal value and transmits it to the electronic device processor. Under low ambient light intensity, it can also reduce the intensity of the display screen in real time to reduce power consumption.

[0003] At present, in the common OLED display screen, the ambient light sensor is mainly arranged under the display screen. Specifically, the disp...

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