Invention Grant
- Patent Title: Fingerprint identification circuit, touch apparatus and fingerprint identification method
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Application No.: US15562570Application Date: 2017-02-23
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Publication No.: US10095910B2Publication Date: 2018-10-09
- Inventor: Xiaoxiang He , Xiaojing Qi
- Applicant: BOE TECHNOLOGY GROUP CO., LTD. , CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Applicant Address: CN Beijing CN Chengdu, Sichuan
- Assignee: BOE TECHNOLOGY GROUP CO., LTD.,CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Current Assignee: BOE TECHNOLOGY GROUP CO., LTD.,CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Beijing CN Chengdu, Sichuan
- Agency: Nath, Goldberg & Meyer
- Agent Joshua B. Goldberg
- Priority: CN201610342252 20160520
- International Application: PCT/CN2017/074551 WO 20170223
- International Announcement: WO2017/197945 WO 20171123
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06F3/044 ; G06K19/07 ; A61B5/1172

Abstract:
A fingerprint identification circuit comprises multiple reading sub-circuits, and multiple fingerprint identification sub-circuits each column of fingerprint identification sub-circuits are connected with one reading sub-circuit, each fingerprint identification sub-circuit comprises a writing sub-circuit, a sensing sub-circuit and a output sub-circuit, the writing sub-circuit is connected with a scan signal input terminal; the sensing sub-circuit senses a fingerprint and transmits a sensing signal to the output sub-circuit; the output sub-circuit outputs the sensing signal upon the writing sub-circuit is turned off each fingerprint identification sub-circuit further comprises: a converting and amplifying sub-circuit provided between the sensing sub-circuit and the output sub-circuit, for converting the sensing signal into a current signal, amplifying the current signal and outputting it to the output sub-circuit, the reading sub-circuit is connected with the output sub-circuit for reading the sensing signal and converting the current signal into a voltage signal to output.
Public/Granted literature
- US20180211080A1 Fingerprint Identification Circuit, Touch Apparatus and Fingerprint Identification Method Public/Granted day:2018-07-26
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