Integrated fingerprint module combining light guide and light shielding

Abstract

This invention relates to an innovative design of a fingerprint module integrating light emission and light shielding. The fingerprint module includes a light-emitting element and a light-guiding structure. The light-emitting element is integrated below the light-guiding structure, which is formed by a light-transmitting material and a light-shielding material. The light-transmitting material constitutes the light-guiding area and forms an exposed light-emitting surface to guide light and produce a visible light effect. The light-shielding material is disposed around the light-guiding area or in non-light-emitting areas to restrict light to only emitted from the predetermined light-emitting area, thereby suppressing light scattering from unintended areas. In this way, the light-guiding structure of this invention can simultaneously serve as a light-emitting appearance component and a light-shielding structure, and the light-emitting area can be defined during molding. This effectively simplifies the module structure, reduces process steps, improves the boundary clarity and appearance consistency of the light-emitting area, and helps to reduce the overall thickness of the module, improving the integration of product design and manufacturing stability.

Claims

1. A fingerprint module integrating light emission and light shielding, mainly composed of a light-emitting element and a light-guiding structure, wherein the light-emitting element is assembled below the light-guiding structure, wherein... The light guide structure includes a light guide area and a light shielding area, which are integrally formed from light-transmitting material and opaque material, respectively. The light guide area is used to guide light, while the light shielding area is used to limit the escape of light.

2. The fingerprint module that integrates light-emitting and light-shielding functions as described in claim 1, wherein a reflector is provided at the bottom of the light-conducting structure to increase light reflection and improve uniformity.

3. The fingerprint module that integrates light emission and light shielding as described in claim 1, wherein a glass component is provided on the upper part of the light guide structure and disposed above the sensing IC housed in the internal space of the light guide structure, for the purpose of shielding the internal components.

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