Optical sensor, optical sensing system and manufacturing method thereof

Abstract

The invention provides an optical sensor, an optical sensing system and a manufacturing method thereof. The optical sensor includes: a substrate having a plurality of sensing pixels arranged in an array; the first transparent dielectric layer is positioned above the substrate; and a plurality of microlenses arranged in an array and located on or above the first transparent dielectric layer. The micro lenses enable a plurality of parallel forward incident light entering the micro lenses from the outside to pass through the first transparent dielectric layer to be incident into part or all of the total number of the sensing pixels. And a plurality of parallel oblique incident light entering the micro lens from the outside is incident to the outside of a part or all of the total number of thesensing pixels, so that the image of the target object is sensed. The target object generates parallel forward incident light and parallel oblique incident light, the forward incident light is parallel to a plurality of optical axes of the micro lens, and an angle is formed between each oblique incident light and each optical axis. The invention also provides an optical sensing system using the optical sensor and a manufacturing method of the optical sensor.

Description

technical field [0001] The present invention relates to an optical sensor (sensor), an optical sensor system and a manufacturing method thereof, in particular to an optical sensor with an angle controllable collimator structure (Angle Controllable Collimator), and an optical sensor using the optical sensor Sensing system and method of manufacture thereof. Background technique [0002] Today's mobile electronic devices (such as mobile phones, tablets, laptops, etc.) are usually equipped with user biometric systems, including different technologies such as fingerprints, faces, irises, etc., to protect personal data security, such as mobile phones Portable devices such as smart watches or smart watches also have the function of mobile payment, and it has become a standard function for user biometrics, while the development of portable devices such as mobile phones is moving towards full screen (or ultra-narrow bezel ), the trend of traditional capacitive fingerprint keys (such...

AI Technical Summary

Problems solved by technology

For this reason, the battery of the mobile phone cannot have a long service time

And because the new 5G mobile phones will consume more power in the future, the use of batteries is even more preoccupied.

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