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1. (WO2018010250) OPTICAL FINGERPRINT SENSOR MODULE

Pub. No.:    WO/2018/010250    International Application No.:    PCT/CN2016/095828
Publication Date: Fri Jan 19 00:59:59 CET 2018 International Filing Date: Fri Aug 19 01:59:59 CEST 2016
IPC: G06K 9/00
G02B 5/00
Applicants: SHANGHAI OXI TECHNOLOGY CO., LTD
上海箩箕技术有限公司
Inventors: LING, Yan
凌严
ZHU, Hong
朱虹
Title: OPTICAL FINGERPRINT SENSOR MODULE
Abstract:
An optical fingerprint sensor module, comprising: an optical fingerprint sensor (210), the optical fingerprint sensor (210) having a device layer (212), and the device layer (212) having a pixel region; the pixel region has a plurality of pixels; a planar backlight (230); and a light collimating layer (220) located between the optical fingerprint sensor (210) and the planar backlight (230); the light collimation layer (220) comprises n-layer shutter film layers (221, 222) stacked from bottom to top, each of the shutter film layers (221, 222) comprising a plurality of light-transmitting slits (2211) arranged in parallel and a plurality of light-shielding frame strips (2212), the light-transmitting slits (2211) being located between adjacent light-shielding frame strips (2212). The lengths of the light-transmitting slits (2211) extend in a first axial direction in odd-numbered shutter film layers (221); and the lengths of the light-transmitting slits (2211) extend in a second axial direction in even-numbered shutter film layers (222). The first axial direction is perpendicular to the second axial direction. The optical fingerprint sensor module has an optimized structure and improved performance.