THIN BIOMETRIC DETECTION MODULE
First Claim
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1. A thin biometric detection module configured to detect at least one biometric characteristic of a part of human body, the thin biometric detection module comprising:
- a substrate having a substrate surface;
a chip disposed on the substrate surface and comprising a semiconductor optical detection region;
at least one light source disposed on the substrate surface; and
an abrasion-proof layer formed on a chip surface of the chip, and a distance from the chip surface to an upper surface of the abrasion-proof layer is smaller than 100 micrometers,wherein the upper surface of the abrasion-proof layer is configured to be directly in contact with a body surface of the part of human body when detecting the biometric characteristic such that light emitted from the light source directly illuminates the body surface and sequentially passes through the part of human body and the abrasion-proof layer to be detected by the semiconductor optical detection region.
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Abstract
There is provided a thin biometric detection module, which is advantageous in being able to detect scattered light from body tissue after the light transmitting in the body tissue without additional optical mechanism placed on the semiconductor optical detection pixel of the detection module for biometric detection.
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Citations
20 Claims
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1. A thin biometric detection module configured to detect at least one biometric characteristic of a part of human body, the thin biometric detection module comprising:
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a substrate having a substrate surface; a chip disposed on the substrate surface and comprising a semiconductor optical detection region; at least one light source disposed on the substrate surface; and an abrasion-proof layer formed on a chip surface of the chip, and a distance from the chip surface to an upper surface of the abrasion-proof layer is smaller than 100 micrometers, wherein the upper surface of the abrasion-proof layer is configured to be directly in contact with a body surface of the part of human body when detecting the biometric characteristic such that light emitted from the light source directly illuminates the body surface and sequentially passes through the part of human body and the abrasion-proof layer to be detected by the semiconductor optical detection region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A thin biometric detection module configured to detect at least one biometric characteristic of a part of human body, the thin biometric detection module comprising:
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a plurality of linear semiconductor optical detection regions; at least one light source; an abrasion-proof layer overlaid on the linear semiconductor optical detection regions, and a thickness of the abrasion-proof layer is smaller than 100 micrometers; and a control module electrically coupled to the linear semiconductor optical detection regions and the light source and configured to detect the biometric characteristic according to optical images of a body surface of the part of human body captured by different of the linear semiconductor optical detection regions at different times, wherein an upper surface of the abrasion-proof layer is configured to be directly in contact with the body surface when detecting the biometric characteristic such that light emitted from the light source directly illuminates the body surface and sequentially passes through the part of human body and the abrasion-proof layer to be detected by the linear semiconductor optical detection regions. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A thin biometric detection module configured to detect at least one biometric characteristic of a part of human body, the thin biometric detection module comprising:
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a semiconductor optical detection region configured to capture a plurality of optical images of a body surface of the part of human body at a frame rate higher than 300 frames per second; at least one light source; an abrasion-proof layer overlaid on the semiconductor optical detection region, and a thickness of the abrasion-proof layer is smaller than 100 micrometers; and
;a control module electrically coupled to the semiconductor optical detection region and the light source and configured to generate a surface image associated with the body surface according to the optical images captured by the semiconductor optical detection region at different times to accordingly detect the biometric characteristic according to the surface image, wherein an upper surface of the abrasion-proof layer is configured to be directly in contact with the body surface when detecting the biometric characteristic such that light emitted from the light source directly illuminates the body surface and sequentially passes through the part of human body and the abrasion-proof layer to be detected by the semiconductor optical detection region.
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Specification