阅读说明：本技术 光学指纹识别装置和电子设备 (Optical fingerprint identification device and electronic equipment ) 是由 吴宝全 张思超 龙卫 于 2019-08-14 设计创作，主要内容包括：一种光学指纹识别装置(20)和电子设备(10),能够提升光学指纹识别装置(20)的性能。该光学指纹识别装置(20)包括：光检测阵列(400)；滤波层(500),设置于所述光检测阵列(400)上方,用于滤掉非目标波段的光信号,透过目标波段的光信号,且所述滤波层(500)与所述光检测阵列(400)一起集成在光电传感器芯片中；第一阻光层(300),形成于所述滤波层(500)上方,其中,所述第一阻光层(300)设置有多个通光小孔(310)；第一微透镜阵列(200),设置于所述第一阻光层(300)上方；其中,所述第一微透镜阵列(200)用于将光信号汇聚至所述第一阻光层(300)的多个通光小孔(310),所述光信号通过所述第一阻光层(300)的多个通光小孔(310)传输至所述光检测阵列(400)。(An optical fingerprint recognition device (20) and an electronic apparatus (10) are provided, which can improve the performance of the optical fingerprint recognition device (20). The optical fingerprint recognition device (20) comprises: a light detection array (400); the filtering layer (500) is arranged above the light detection array (400) and is used for filtering optical signals in a non-target waveband and transmitting the optical signals in a target waveband, and the filtering layer (500) and the light detection array (400) are integrated in the photoelectric sensor chip; a first light blocking layer (300) formed over the filter layer (500), wherein the first light blocking layer (300) is provided with a plurality of light passing apertures (310); a first microlens array (200) disposed over the first light blocking layer (300); wherein the first microlens array (200) is configured to focus an optical signal to the plurality of light passing apertures (310) of the first light blocking layer (300), the optical signal being transmitted to the light detection array (400) through the plurality of light passing apertures (310) of the first light blocking layer (300).)

An optical fingerprint recognition apparatus, comprising:

a light detection array;

the filtering layer is arranged above the light detection array and used for filtering optical signals of non-target wave bands and transmitting the optical signals of the target wave bands, and the filtering layer and the light detection array are integrated in the photoelectric sensor chip;

the first light-blocking layer is formed above the filter layer and is provided with a plurality of light-passing small holes;

a first microlens array disposed over the first light blocking layer;

the first micro lens array is used for converging an optical signal to the plurality of light-passing pores of the first light-blocking layer, and the optical signal is transmitted to the light detection array through the plurality of light-passing pores of the first light-blocking layer.

The optical fingerprint recognition device of claim 1, further comprising: a first dielectric layer and a second dielectric layer;

the first dielectric layer grows on the surface of the filter layer;

the first light-blocking layer grows on the surface of the first medium layer;

the second medium layer grows on the surface of the first light-blocking layer and is filled with the plurality of light-transmitting small holes of the first light-blocking layer.

The optical fingerprint identification device according to claim 1 or 2, wherein the upper surface of the first micro-lens array is a light-condensing area, and the light-condensing area of the first micro-lens array covers the light-sensing area of the light detection array.

The optical fingerprint recognition device of any one of claims 1-3, wherein the first microlens array comprises a plurality of microlenses, and the light detection array comprises a plurality of pixel cells;

the first microlens of the plurality of microlenses of the first microlens array is used for converging a first optical signal from above the first microlens to a first light-passing aperture corresponding to the first microlens in the light-passing apertures of the first light-blocking layer, and the first optical signal is transmitted to a first pixel unit corresponding to the first microlens in the plurality of pixel units through the first light-passing aperture.

The optical fingerprint recognition device of claim 4, wherein the optical signal is an optical signal of a first specific direction, a direction of a line connecting an optical center of the first microlens and a center of the first light passing aperture is the same as or close to the first specific direction, and a direction of a line connecting a center of the first light passing aperture and a center of the first pixel unit is the same as or close to the first specific direction.

The optical fingerprint recognition device of claim 5, wherein the first specific direction is a direction perpendicular to the light detection array.

The optical fingerprint recognition device of claim 5, wherein the first specific direction is an oblique direction to the light detection array.

The optical fingerprint recognition device of any one of claims 4-7, wherein the ratio of the area of the first microlens on the light detection array that is forward projected to the area of the first pixel cell is greater than 70%.

The optical fingerprint recognition device of any one of claims 4-8, wherein the first micro-lens is a quadrilateral micro-lens.

The optical fingerprint recognition device of any one of claims 4-9, wherein an orthographic projection of the first microlens on the light detection array coincides with the first pixel cell.

The optical fingerprint recognition device of any one of claims 4-10, wherein the upper surface of the first microlens is spherical or aspherical.

The optical fingerprint identification device according to any one of claims 1 to 11, wherein the light passing aperture is a circular aperture having a diameter of less than 10 μm.

The optical fingerprint recognition device of any one of claims 2-12, wherein the optical fingerprint recognition device comprises a plurality of layers of the first light blocking layer.

The optical fingerprint identification device according to claim 13, wherein the second medium layers are disposed between the plurality of first light-blocking layers and between the first light-blocking layer disposed at the topmost layer and the first microlens array, and the first light-blocking layer and the second medium layer are sequentially grown through a growth process;

the second medium layer fills the plurality of light-transmitting holes of the first light-blocking layer.

The optical fingerprint recognition device according to claim 13 or 14, wherein the diameter of the light passing aperture of the first light-blocking layer positioned at the upper layer is larger than the diameter of the light passing aperture of the first light-blocking layer positioned at the lower layer.

The optical fingerprint recognition device according to any one of claims 13 to 15, wherein the optical signal is an optical signal in a second specific direction, and a direction of a line connecting a center of the light passing aperture of the first light-blocking layer located on an upper layer and a center of the corresponding light passing aperture of the first light-blocking layer located on a lower layer is the same as or close to the second specific direction;

the connecting line direction of the center of the light passing hole of the first light-blocking layer positioned on the upper layer and the center of the corresponding pixel unit on the light detection array is the same as or close to the second specific direction.

The optical fingerprint recognition device according to any one of claims 1-16, wherein the wavelength range of the target wavelength band comprises 350-700 nm and/or 800-1000 nm.

The optical fingerprint identification device of any one of claims 1-17, wherein the thickness of the filter layer is 20 μ ι η or less.

The optical fingerprint recognition device of any one of claims 1-18, further comprising a circuit board electrically connected to the optical fingerprint recognition device by an electrical connection device.

The optical fingerprint recognition device of claim 19, wherein the light detection portion is provided with a metal pad, and the electrical connection device is electrically connected to the optical fingerprint recognition device through the metal pad.

The optical fingerprint identification device of claim 19 or 20, wherein the circuit board is a flexible circuit board, and the electrical connection device is a solder, an anisotropic conductive film, or a metal connection device.

The optical fingerprint identification device of claim 19 or 20 wherein the circuit board is a printed circuit board and the electrical connection device is a wire bonding device.

The optical fingerprint recognition device of claim 22, wherein the printed circuit board is disposed below the light detection portion or in parallel with the light detection portion.

An electronic device, comprising: a display screen and a display screen, and,

the optical fingerprint recognition device according to any one of claims 1 to 23, wherein said optical fingerprint recognition device is disposed below said display screen.