A display device and its control method

Abstract

The invention discloses a display device and a control method thereof, which are used to realize the detection of the distance between a mobile phone and a human ear without using a distance sensor. The display device includes an image acquisition module, an image comparison module connected to the image acquisition module, and a control chip connected to the image comparison module; the image acquisition module is used to collect images of users, and sends the collected images to the image comparison module. module; image comparison module, used to determine the outline of the image received, and compare the outline of the image with the outline of the pre-stored standard image, if the two are different, then output the first signal to the control chip; the control chip , for controlling the display screen of the display device to turn on according to the received first signal.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display device and a control method thereof. Background technique [0002] The upper end of existing smart phone is generally provided with earpiece, distance sensor and front camera, as figure 1 As shown, the upper end of the smart phone is provided with a handset 11, a distance sensor 12 and a front camera 13, wherein the function of the distance sensor 12 is to measure the distance between the mobile phone and the human ear when making a call. When the earpiece is close to the human ear, the control chip installed inside the mobile phone will control the display of the mobile phone to turn off to save power; when the mobile phone is far away from the human ear, the control chip will control the display of the mobile phone to turn on so as not to hinder other operations of the user. [0003] But existing technology has following shortcoming when adopting distance se...

AI Technical Summary

Problems solved by technology

[0004] First, the distance sensor measures the distance through the emission and reception of light or ultrasonic waves, which not only consumes electric energy, but also has adverse effects on the human body;

[0005] Second, if you make a phone call while performing other operations in the hands-free state, you may accidentally touch the distance sensor and cause the display to turn off and affect the user's use;

[0006] Third, the stacking settings of the earpiece, distance sensor and front camera will affect the overall aesthetics of the phone

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