LCD display screen, electronic device and control system

Abstract

The embodiments of the invention provide an LCD display screen, an electronic device and a control system. The LCD display screen includes a backlight module and a luminous fingerprint module, whereinthe backlight module is provided with a front surface and a back surface opposite to the front side, a groove is formed in the front surface of the backlight module, the front surface of the backlight module includes a backlight light-emitting area and a backlight non-light-emitting area, and the groove is located in the backlight non-light-emitting area; and the luminous fingerprint module is located in the groove, and the luminous fingerprint module comprises an illuminating module and an optical fingerprint module, wherein the illuminating module is used for providing emitting light abovethe backlight non-light-emitting area, and further used for providing incident light required by the optical fingerprint module to obtain reflected optical signals. According to the LCD display screen, the electronic device and the control system, fingerprint identification under the screen of the LCD display screen can be realized.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of electronic display, in particular to an LCD display screen, electronic equipment and a control system. Background technique [0002] With the rapid development of the mobile Internet era, the integrated functions of mobile phones and other electronic devices have become more complete. Today, the screen size of electronic devices has also developed to a critical point. In order to pursue better visual effects, "full screen" design came into being. The so-called "full screen" design refers to: maximize the display area of ​​the front screen of electronic devices such as mobile phones, increase the screen ratio as much as possible, and reduce the width of the screen frame, so as to obtain a wider display area and improve the user's visual experience. [0003] The "full screen" design will inevitably lead to changes in fingerprint recognition technology. At present, the fingerprint ...

AI Technical Summary

Problems solved by technology

At present, the fingerprint identification schemes in the mainstream full-screen on the market include the following two types: (1) The fingerprint module is placed on the back of electronic devices such as mobile phones, so that the front of the electronic device leaves enough space for the full-screen design; however, the rear-mounted fingerprint solution It will increase the difficulty of the user's operation, and the user's operation experience will be poor

(2) Under-screen fingerprint technology, that is, the optical fingerprint module is set behind the screen to collect fingerprints through the screen to meet the design requirements of the full screen; however, the under-screen fingerprint technology needs to cooperate with OLED (Organic Light Emitting Diode) with better light transmission ), its cost is high and resources are limited, and for LCD display screens, since LCD display screens usually require a backlight module with a multi-layer structure to provide a backlight source, and usually the backlight module itself cannot transmit light, so in LCD The bottom of the backlight module of the display cannot receive visible light, and it is difficult to realize the fingerprint technology under the screen

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