Title:
OPTICAL FINGERPRINT APPARATUS AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/243926
Kind Code:
A1
Abstract:
An optical fingerprint apparatus (200) and an electronic device, being able to reduce the thickness of the optical fingerprint apparatus (200). The optical fingerprint apparatus (200) is arranged below an OLED display screen (10), and comprises a circuit board (210), a rewiring layer (220) and a fingerprint chip (230). The circuit board (210) is arranged below the fingerprint chip (230); the rewiring layer (220) is arranged between the circuit board (210) and the fingerprint chip (230), and the rewiring layer (220) comprises a first pad (221); the fingerprint chip (230) comprises a second pad (231), a conductive through-hole structure (232), a drive circuit (235) and a plurality of optical sensing units (233) distributed in an array; the optical sensing units (233) are used for receiving an optical signal which is formed by light irradiating a finger above the OLED display screen (10) and passes through the OLED display screen (10), and converting the optical signal into a corresponding electrical signal; the plurality of optical sensing units (233) are electrically connected to the second pad (231) by means of the drive circuit (235); the second pad (231) is arranged on an upper surface of the fingerprint chip (230); the conductive through-hole structure (232) is provided inside the fingerprint chip (230) and in communication with the first pad (221) and the second pad (231); and the rewiring layer (220) is electrically connected to the circuit board (210).
Inventors:
WU BAOQUAN (CN)
ZHANG JIANXIANG (CN)
LIU CHENJIN (CN)
ZHANG JIANXIANG (CN)
LIU CHENJIN (CN)
Application Number:
PCT/CN2019/090171
Publication Date:
December 10, 2020
Filing Date:
June 05, 2019
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G06K9/00; H01L27/32
Foreign References:
| CN109492622A | 2019-03-19 | |||
| US20140140588A1 | 2014-05-22 | |||
| CN109815918A | 2019-05-28 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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