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1. WO2020113414 - OPTICAL FINGERPRINT RECOGNITION MODULE AND ELECTRONIC DEVICE

Publication Number WO/2020/113414
Publication Date 11.06.2020
International Application No. PCT/CN2018/119140
International Filing Date 04.12.2018
IPC
G06K 9/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H01L 27/146 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
14including semiconductor components sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
144Devices controlled by radiation
146Imager structures
G06K 9/20 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
20Image acquisition
CPC
G06K 9/0004
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00006Acquiring or recognising fingerprints or palmprints
00013Image acquisition
0004by using electro-optical elements or layers, e.g. electroluminescent sensing
G06K 9/00046
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00006Acquiring or recognising fingerprints or palmprints
00013Image acquisition
00046by using geometrical optics, e.g. using prisms
G06K 9/2036
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
20Image acquisition
2036Special illumination such as grating, reflections, deflections, e.g. for characters with relief
Applicants
  • 深圳市汇顶科技股份有限公司 SHENZHEN GOODIX TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 董昊翔 DONG, Haoxiang
  • 许炜添 XU, Weitian
Agents
  • 北京同立钧成知识产权代理有限公司 LEADER PATENT & TRADEMARK FIRM
Priority Data
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) OPTICAL FINGERPRINT RECOGNITION MODULE AND ELECTRONIC DEVICE
(FR) MODULE DE RECONNAISSANCE D'EMPREINTES DIGITALES OPTIQUE ET DISPOSITIF ÉLECTRONIQUE
(ZH) 一种光学指纹识别模组及电子装置
Abstract
(EN)
An optical fingerprint recognition module and an electronic device. The optical fingerprint recognition module comprises: a reflective plate (30), an optical modulation means (40) and an optical sensing element (10). The reflective plate (30) and the optical sensing element (10) are provided one above the other, and a first gap is formed between the optical sensing element (10) and the reflective plate (30). The optical modulation means (40) is provided in the first gap. The reflective plate (30) comprises a reflective region (32) located on one side of the optical modulation means (40), so that light reflected by a finger enters the sensing region of the optical sensing element (10) after passing through the optical modulation means (40) and the reflective region (32). Thus, the light, reflected by the finger and having a fingerprint signal, is reflected and modulated by the reflective plate (30) and the optical modulation means (40) and then enters the sensing region and is outputted. The path of the light, reflected by the finger and having the fingerprint signal, is reflected and folded, effectively reducing the thickness of the fingerprint recognition module whilst ensuring the fingerprint recognition performance.
(FR)
L'invention concerne un module de reconnaissance d'empreintes digitales optique et un dispositif électronique. Le module de reconnaissance d'empreintes digitales optique comprend : une plaque réfléchissante (30), un moyen de modulation optique (40) et un élément de détection optique (10). La plaque réfléchissante (30) et l'élément de détection optique (10) sont disposés l'un au-dessus de l'autre, et un premier espace est formé entre l'élément de détection optique (10) et la plaque réfléchissante (30). Le moyen de modulation optique (40) est disposé dans le premier espace. La plaque réfléchissante (30) comprend une région réfléchissante (32) située sur un côté du moyen de modulation optique (40), de sorte que la lumière réfléchie par un doigt entre dans la région de détection de l'élément de détection optique (10) après avoir traversé le moyen de modulation optique (40) et la région réfléchissante (32). Ainsi, la lumière, réfléchie par le doigt et ayant un signal d'empreinte digitale, est réfléchie et modulée par la plaque réfléchissante (30) et le moyen de modulation optique (40) puis entre dans la région de détection et est délivrée en sortie. Le trajet de la lumière, réfléchie par le doigt et ayant le signal d'empreinte digitale, est réfléchi et plié, réduisant efficacement l'épaisseur du module de reconnaissance d'empreintes digitales tout en assurant la performance de reconnaissance d'empreintes digitales.
(ZH)
一种光学指纹识别模组及电子装置,包括:反光板(30)、光学调制器件(40)和光学传感元件(10),反光板(30)和光学传感元件(10)上下设置,且光学传感元件(10)与反光板(30)之间形成第一间隙,光学调制器件(40)设置于第一间隙内,反光板(30)包括位于光学调制器件(40)一侧的反射区(32),以使经手指反射的光经光学调制器件(40)和反射区(32)后进入光学传感元件(10)的传感区域,这样就使手指反射的、带有指纹信号的光经过反光板(30)以及光学调制器件(40)的反射和调制后进入传感区域并输出,对从手指反射、带有指纹信息的光的光路进行了反射折叠,在保证指纹识别性能的前提下,有效的减小指纹识别模组的厚度。
Also published as
CN201880002642.1
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