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1. CN108664913 - Sensor, preparation method of sensor, panel and recognition device

Office
China
Application Number 201810421486.4
Application Date 04.05.2018
Publication Number 108664913
Publication Date 16.10.2018
Grant Number 108664913
Grant Date 07.04.2020
Publication Kind B
IPC
G06K 9/00
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
CPC
G06V 40/1306
H01L 41/1132
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
08Piezo-electric or electrostrictive devices
113with mechanical input and electrical output ; , e.g. generators, sensors
1132Sensors
H01L 41/047
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
02Details
04of piezo-electric or electrostrictive devices
047Electrodes ; or electrical connection arrangements
H01L 41/0805
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
08Piezo-electric or electrostrictive devices
0805based on piezo-electric or electrostrictive films or coatings
Applicants BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
Inventors WANG QIANG
王强
Agents 北京安信方达知识产权代理有限公司 11262
北京安信方达知识产权代理有限公司 11262
Title
(EN) Sensor, preparation method of sensor, panel and recognition device
(ZH) 一种传感器及其制备方法、面板和识别装置
Abstract
(EN) The invention discloses a sensor, a preparation method of the sensor, a panel and a recognition device. The sensor comprises a substrate, a first electrode layer, a second electrode layer and a piezoelectric layer, wherein the first electrode layer is arranged on the substrate; the second electrode layer is arranged on the first electrode layer and far away from the substrate; the piezoelectric layer is arranged between the first electrode layer and the second electrode layer and coupled with each of the first electrode layer and the second electrode layer; and positive projection, on the substrate, of the piezoelectric layer is gradually decreased from the side far away from the substrate to the side close to the substrate. According to the sensor provided by the invention, the preparation difficulty is reduced and the service life is prolonged.
(ZH) 一种传感器及其制备方法、面板、识别装置,该传感器包括:衬底、设置于所述衬底上的第一电极层、设置于所述第一电极层远离所述衬底侧的第二电极层、设置于所述第一电极层和所述第二电极层之间且分别与所述第一电极层和第二电极层耦接的压电层,其中:所述压电层从远离所述衬底的一侧至靠近所述衬底的一侧在所述衬底上的正投影依次减小。本发明一实施例提供的传感器,降低了制备难度,提高了寿命。
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