阅读说明：本技术 指纹识别装置和电子设备 (Fingerprint identification device and electronic equipment ) 是由 李梦平 杜灿鸿 钟松锦 于 2019-05-14 设计创作，主要内容包括：一种指纹识别装置和电子设备,应用于具有显示屏的电子设备,包括：光学功能层,设置在所述显示屏和所述电子设备的中框之间,其中,所述光学功能层包括四分之一波片和偏振片,所述偏振片设置在所述四分之一波片下方；光学指纹模组,设置在所述光学功能层下方,用于接收经所述四分之一波片和所述偏振片传输后的指纹光信号,所述指纹检测信号用于检测手指的指纹信息。(fingerprint identification device and electronic equipment, applied to electronic equipment with a display screen, comprising an optical functional layer arranged between the display screen and a middle frame of the electronic equipment, wherein the optical functional layer comprises a quarter wave plate and a polaroid, the polaroid is arranged below the quarter wave plate, and an optical fingerprint module arranged below the optical functional layer and used for receiving fingerprint light signals transmitted by the quarter wave plate and the polaroid, and the fingerprint detection signals are used for detecting fingerprint information of fingers.)

fingerprint identification device, which is applied to an electronic device with a display screen, comprising:

an optical function layer disposed between the display screen and a middle frame of the electronic device,

wherein the optically functional layer comprises a quarter wave plate and a polarizer disposed below the quarter wave plate;

the optical fingerprint module is arranged below the optical function layer and used for receiving fingerprint light signals transmitted by the quarter wave plate and the polaroid, and the fingerprint light signals are used for detecting fingerprint information of a finger.

The fingerprint recognition device of claim 1, wherein the fast axis of the quarter-wave plate and the polarization direction of the polarizer are at 45 degrees.

The fingerprint recognition device of claim 1 or 2, wherein the optically functional layer further comprises:

the filter layer sets up leaded light layer top in the optics fingerprint module, wherein, leaded light layer be used for with fingerprint light signal guides to optical sensor in the optics fingerprint module, the filter layer is used for right fingerprint light signal carries out filtering.

The fingerprint recognition device of claim 3, wherein the filter layer is disposed above the quarter wave plate.

The fingerprint recognition device of claim 3, wherein the filter layer is disposed between the quarter wave plate and the polarizer.

The fingerprint recognition device of claim 3, wherein the filter layer is disposed below the polarizer.

The fingerprint identification device of any one of claims , wherein the light guide layer comprises at least of an array of apertures, a lens, and a microlens array.

The fingerprint recognition device of any one of claims 1-7, wherein the fingerprint recognition device further comprises:

and the antireflection film is arranged below the optical function layer.

The fingerprint identification device of any one of claims 1-8, wherein the optically functional layer is adhered to a lower surface of the display.

The fingerprint identification device of any one of claims 1-9, wherein the optically functional layer is disposed over an aperture of the center frame, the aperture configured to pass the fingerprint light signal.

an electronic device, comprising:

a display screen;

a middle frame;

the fingerprint identification device of any one of claims 1-10, , wherein the quarter plate and the polarizer are disposed between the display screen and the bezel.

The electronic device of claim 11, wherein the middle frame is provided with an opening, and the quarter wave plate and the polarizer are disposed above the opening, and the opening is used for passing a fingerprint light signal for fingerprint detection.

The electronic device according to claim 11 or 12, wherein the display screen is an organic light emitting diode display screen, the display screen comprises a plurality of organic light emitting diode light sources, and wherein the fingerprint identification device uses at least a part of the organic light emitting diode light sources as the excitation light source for fingerprint identification.