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1. (WO2017036072) FINGERPRINT IDENTIFICATION DEVICE AND FINGERPRINT IDENTIFICATION SYSTEM

Pub. No.:    WO/2017/036072    International Application No.:    PCT/CN2016/071620
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Jan 22 00:59:59 CET 2016
IPC: G06K 9/00
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
北京京东方光电科技有限公司
Inventors: GAO, Jian
高健
LIU, Yingming
刘英明
NIU, Xiaochen
牛小辰
CHEN, Xiaochuan
陈小川
WANG, Haisheng
王海生
WANG, Qian
王倩
YANG, Ming
杨明
LU, Pengcheng
卢鹏程
Title: FINGERPRINT IDENTIFICATION DEVICE AND FINGERPRINT IDENTIFICATION SYSTEM
Abstract:
A fingerprint identification device and a fingerprint identification system. The fingerprint identification device comprises: a substrate, a transparent cover plate located right above the substrate; a light source for detection located on a first side of the transparent cover plate; and a photoelectric sensor located on a lower surface side of the transparent cover plate, wherein the refractive index of the transparent cover plate is less than the refractive index of skin in a fingerprint portion of a human finger; the transparent cover plate has a lateral surface on the first side, and an included angle α between the lateral surface and an upper surface of the transparent cover plate is an acute angle; the light source for detection is constructed to provide a light beam toward the lateral surface of the transparent cover plate such that the light beam is incident to the upper surface of the transparent cover plate through the lateral surface of the transparent cover plate, and in the case where the upper surface of the transparent cover plate comes into contact with air, the light beam is totally reflected on the upper surface of the transparent cover plate; and the photoelectric sensor is constructed to receive the light beam reflected back by the upper surface of the transparent cover plate. The fingerprint identification device has an increased accuracy rate.