Standardized optical screen lower fingerprint module and manufacturing method thereof

Abstract

The invention provides a standardized fingerprint module under an optical screen and a manufacturing method thereof, the module comprises a lens, a fingerprint chip and a substrate, the lens is arranged on the fingerprint chip, and the fingerprint chip is arranged on the substrate; the fingerprint chip is electrically connected with the substrate; the lens is a wafer-level optical lens, the optical fingerprint module can effectively reduce the height of the fingerprint module, the lens of the fingerprint module under the ultra-thin optical screen is the wafer-level optical lens, the thickness of a finished product module is greatly reduced, the product is packaged by a substrate, the product can be used as a standardized electronic device, and the product can be used as a standard electronic device. The fingerprint module is directly welded to the designated position of a mainboard of the terminal equipment by adopting an SMT (Surface Mounted Technology) process, an implementation mode is provided for a standardized fingerprint module, and the design and manufacturing cost is greatly reduced.

Description

technical field [0001] The invention belongs to the field of electronic technology, and in particular relates to a standardized optical under-display fingerprint module. Background technique [0002] Today's biometric technology has been widely used in the field of smart phones, and fingerprint recognition is widely used in terminal equipment because of its mature technology and high security. On the other hand, full screens have become the main development trend of mobile phone screens. In order to increase the screen-to-body ratio, fingerprint unlocking needs to be placed on other parts of the phone except the screen, and fingerprints under the screen have become an optimal solution. Traditional screens The thickness of the lower fingerprint module is relatively thick. Under the trend of ultra-thin mobile phones, it occupies the space of the battery, resulting in poor battery life. In addition, the fingerprint modules in the traditional field are customized products. Even ...

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Problems solved by technology

On the other hand, full screens have become the main development trend of mobile phone screens. In order to increase the screen-to-body ratio, fingerprint unlocking needs to be placed on other parts of the phone except the screen, and fingerprints under the screen have become an optimal solution. Traditional screens The thickness of the lower fingerprint module is relatively thick. Under the trend of ultra-thin mobile phones, it occupies the space of the battery, resulting in poor battery life. In addition, the fingerprint modules in the traditional field are customized products. Even if different terminal needs use the same solution, Due to different structural designs and pin definitions, the final finished modules are also different. The module factory needs to divide different production lines, which wastes workshop resources and labor costs.

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