THIN-FILM TRANSISTOR PANEL HAVING FUNCTION OF IN-SCREEN OPTICAL FINGERPRINT RECOGNITION

Title:

THIN-FILM TRANSISTOR PANEL HAVING FUNCTION OF IN-SCREEN OPTICAL FINGERPRINT RECOGNITION

Document Type and Number:

WIPO Patent Application WO/2019/134060

Kind Code:

A1

Abstract:

Disclosed is a thin-film transistor panel having the function of in-screen optical fingerprint recognition. A light sensing element (18) for detecting a fingerprint is integrated into the thin-film transistor panel, a fingerprint pressed onto a fingerprint receiving region (122) is sensed by means of the total reflection of directional light rays in a light guide substrate (12), and the light sensing element converts an optical signal into an electrical signal so as to recognize the features of the fingerprint. The light sensing element composed of thin-film transistors is integrated onto a thin-film transistor substrate (16), so that the manufacturing procedure can be simplified, the module volume can be reduced and a relatively large fingerprint touch area can be provided. In addition, before entering the light sensing element, the directional light rays can pass through a specific optical structure so as to adjust an optical path; therefore, under general usage conditions, the influence of direct ambient light or intense light can be minimized so as to ensure the accuracy of fingerprint recognition.

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Inventors:

LIN JHE-SYUAN (CN)
HSIAO PEI-HUNG (CN)
HSIAO CHIA-YUAN (CN)
YEH CHUN-HUNG (CN)

Application Number:

PCT/CN2018/000056

Publication Date:

July 11, 2019

Filing Date:

January 31, 2018

Export Citation:

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Assignee:

FOCALTECH SMART SENSORS CO LTD (CN)

International Classes:

G06K9/00

Foreign References:

CN107422788A	2017-12-01
CN105184282A	2015-12-23
CN105334657A	2016-02-17
CN107527039A	2017-12-29
CN207851842U	2018-09-11
CN104463107A	2015-03-25
CN206819320U	2017-12-29
US20110122075A1	2011-05-26
KR20030058718A	2003-07-07

Attorney, Agent or Firm:

KELONG INTERNATIONAL INTELLECTUAL PROPERTY AGENCY LTD. (CN)

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