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Fingerprint input device and display device

A fingerprint input and fingerprint technology, applied in the direction of acquiring/organizing fingerprints/palmprints, character and pattern recognition, instruments, etc., can solve problems such as interference signals, crosstalk, and poor image quality

Inactive Publication Date: 2019-04-26
HKC CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Capacitive sensing technology uses the difference in capacitance to distinguish the ridges and valleys of the fingerprint, however due to the sensing principle, crosstalk seriously interferes with the signal and results in poor image quality
Optical type sensing technologies generally provide better image quality, however, bulky volumes such as prisms and optics limit their use in certain applications
[0003] Therefore, the exemplary fingerprint input device has the problem that crosstalk seriously interferes with the signal and results in poor image quality

Method used

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  • Fingerprint input device and display device
  • Fingerprint input device and display device
  • Fingerprint input device and display device

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Embodiment Construction

[0031] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Alternative embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention.

[0033] see figure 1 , figure 1 It is a schematic structural diagram of the fingerprint in...

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Abstract

The invention relates to a fingerprint input device and a display device. The fingerprint input device comprises a light-emitting layer, a control backboard and a light sensor array, the control backboard comprises a light-transmitting area and a non-light-transmitting area, and the light-transmitting area is provided with a through hole array layer. Light emitted by the light-emitting layer is reflected back by the fingerprint, and the reflected light is gathered and incident on the light sensor array through the through hole array layer on the control backboard, so that the directivity of illumination is improved, signals are prevented from being interfered by crosstalk, and the light sensor array can be used for detecting and generating high-quality image information corresponding to the fingerprint.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a fingerprint input device and a display device. Background technique [0002] Biometric fingerprint technology is constantly evolving in a highly secure online society. Due to the proven technology, fingerprint recognition is widely used in security, immigration and even financial authentication applications. The mainstream of fingerprint sensing methods are capacitive type and optical type. Capacitive sensing technology uses capacitance difference to discern the ridges and valleys of fingerprints, however due to the sensing principle, crosstalk interferes badly with the signal and results in poor image quality. Optical-type sensing technologies generally provide better image quality, however, bulky volumes such as prisms and optics limit their use in some applications. [0003] Therefore, the exemplary fingerprint input device has the problem that the crosstalk seriously in...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/1318
Inventor 卓恩宗刘振
Owner HKC CORP LTD
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