公开(公告)号：US11860030B2

公开(公告)日：2024-01-02

申请号：US17587240

申请日：2022-01-28

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Zhiying Wu ,  Songjin Zhong ,  Canhong Du

IPC: G01J1/42 ,  G01J1/04 ,  G01J1/02

CPC classification number: G01J1/4204 ,  G01J1/0295 ,  G01J1/0488

Abstract: Embodiments of the present disclosure provide methods and apparatuses for detecting an ambient light illuminance and for computing a correction coefficient, and an electronic device. The method for detecting an ambient light illuminance includes: filtering ambient light based on a monochromatic channel, such that a quantum efficiency curve of the filtered light matches a spectral luminous efficiency curve; and performing photoelectric detection on the filtered light to obtain an illuminance level of the ambient light. In solutions of the embodiments of the present disclosure, the photoelectric detection may be equivalent to obtaining an illuminance level of light by convolutional computation based on a spectral luminous efficiency curve, and therefore, when the quantum efficiency curve for a monochromatic waveband obtained by filtering ambient light based on a monochromatic channel matches the spectral luminous efficiency curve, a reliable spectral luminous efficiency curve can be obtained with a small computing workload.

公开(公告)号：US11808625B2

公开(公告)日：2023-11-07

申请号：US17847391

申请日：2022-06-23

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Songjin Zhong

IPC: G02B5/20 ,  G01J1/42 ,  G01J1/02 ,  G01J1/04

CPC classification number: G01J1/4204 ,  G01J1/0271 ,  G01J1/0492

Abstract: The present application provides an ambient light sensor and an electronic device, which may improve detection accuracy and detection performance of the ambient light sensor. The ambient light sensor includes: a light filtering unit array including a plurality of light filtering units, the plurality of light filtering units including a color light filtering unit, a white light filtering unit and a transparent light filtering unit, the white light filtering unit being configured to pass a visible light signal and block an infrared light signal, and the transparent light filtering unit being configured to pass the visible light signal and the infrared light signal; a pixel unit array including a plurality of pixel units, the plurality of pixel units being configured to receive a light signal after the ambient light passes through the plurality of light filtering units for an ambient light detection.

公开(公告)号：US11847993B2

公开(公告)日：2023-12-19

申请号：US18063876

申请日：2022-12-09

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Songjin Zhong ,  Canhong Du ,  Enqi Fu

IPC: G06K9/00 ,  G09G5/12 ,  G09G3/20

CPC classification number: G09G5/12 ,  G09G3/2003 ,  G09G2360/144 ,  G09G2360/145

Abstract: Embodiments of the present application provide a method and apparatus for locating a sensor under a display screen and an electronic device, which can effectively improve performance of the sensor, thereby improving performance of the electronic device. The method includes: acquiring an assembly tolerance region in the display screen, where the assembly tolerance region corresponds to an assembly tolerance of the sensor; lighting up pixels at different positions within the assembly tolerance region sequentially; acquiring multiple pieces of sensing data of the sensor when the pixels at different positions are lit up sequentially, the multiple pieces of sensing data being data obtained after the sensor sequentially receives light signals emitted by the pixels at different positions; and determining a position of the sensor according to the multiple pieces of sensing data.

公开(公告)号：US11200400B2

公开(公告)日：2021-12-14

申请号：US16714704

申请日：2019-12-14

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Mengping Li ,  Canhong Du ,  Songjin Zhong

IPC: G06K9/00 ,  G02B5/30 ,  H01L27/32 ,  H01L27/146

Abstract: A fingerprint identification apparatus and an electronic device applicable to an electronic device having a display screen, including: an optical function layer, disposed between the display screen and a middle frame of the electronic device, wherein the optical function layer includes a quarter-wave plate and a polarizer, and the polarizer is disposed under the quarter-wave plate; and an optical fingerprint module, disposed under the optical function layer, and configured to receive a fingerprint optical signal transmitted through the quarter-wave plate and the polarizer, wherein the fingerprint detecting signal is used for detecting fingerprint information of a finger.