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1. WO2022001538 - ULTRASONIC SENSOR, METHOD FOR PREPARING ULTRASONIC SENSOR, AND DISPLAY APPARATUS

Publication Number WO/2022/001538
Publication Date 06.01.2022
International Application No. PCT/CN2021/097102
International Filing Date 31.05.2021
IPC
G06K 9/00 2006.1
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 27/32 2006.1
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
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
CPC
G06K 9/00
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
H01L 27/32
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
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
H01L 27/3225
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
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
3225OLED integrated with another component
H01L 27/3244
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
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
3241Matrix-type displays
3244Active matrix displays
Applicants
  • 京东方科技集团股份有限公司 BOE TECHNOLOGY GROUP CO., LTD. [CN]/[CN]
Inventors
  • 勾越 GOU, Yue
  • 刘英明 LIU, Yingming
  • 崔亮 CUI, Liang
  • 李秀锋 LI, Xiufeng
  • 韩艳玲 HAN, Yanling
  • 姬雅倩 JI, Yaqian
  • 张晨阳 ZHANG, Chenyang
  • 李佩笑 LI, Peixiao
  • 郭玉珍 GUO, Yuzhen
  • 王迎姿 WANG, Yingzi
Agents
  • 北京市柳沈律师事务所 LIU, SHEN & ASSOCIATES
Priority Data
202010618891.230.06.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) ULTRASONIC SENSOR, METHOD FOR PREPARING ULTRASONIC SENSOR, AND DISPLAY APPARATUS
(FR) CAPTEUR À ULTRASONS, PROCÉDÉ DE PRÉPARATION D'UN CAPTEUR À ULTRASONS ET APPAREIL D'AFFICHAGE
(ZH) 超声波传感器、超声波传感器的制备方法和显示装置
Abstract
(EN) An ultrasonic sensor (100), a method for preparing an ultrasonic sensor, and a display apparatus. The ultrasonic sensor (100) comprises a texture identification area (101) and a control area (102). The control area (102) is located on at least one side of the texture identification area (101). The texture identification area (101) comprises at least one identification unit (110), and the control area (102) comprises at least one control unit (120). The at least one identification unit (110) comprises a first dielectric material layer (111). The at least one control unit (120) comprises a second dielectric material layer (121). The first dielectric material layer (111) and the second dielectric material layer (121) are made of the same material. The first dielectric material layer (111) has a piezoelectric characteristic, and the piezoelectric strain constant of the first dielectric material layer (111) is greater than the piezoelectric strain constant of the second dielectric material layer (121). The described ultrasonic sensor (100) can increase the signal-to-noise ratio.
(FR) Capteur à ultrasons (100), procédé de préparation d'un capteur à ultrasons et appareil d'affichage. Le capteur à ultrasons (100) comprend une zone d'identification de texture (101) et une zone de commande (102). La zone de commande (102) est située sur au moins un côté de la zone d'identification de texture (101). La zone d'identification de texture (101) comprend au moins une unité d'identification (110) et la zone de commande (102) comprend au moins une unité de commande (120). La ou les unités d'identification (110) comprennent une première couche de matériau diélectrique (111). La ou les unités de commande (120) comprennent une seconde couche de matériau diélectrique (121). La première couche de matériau diélectrique (111) et la seconde couche de matériau diélectrique (121) sont composées du même matériau. La première couche de matériau diélectrique (111) a une caractéristique piézoélectrique et la constante de contrainte piézoélectrique de la première couche de matériau diélectrique (111) est supérieure à la constante de contrainte piézoélectrique de la seconde couche de matériau diélectrique (121). Le capteur à ultrasons (100) décrit peut augmenter le rapport signal sur bruit.
(ZH) 一种超声波传感器(100)、超声波传感器的制备方法和显示装置。该超声波传感器(100)包括纹路识别区(101)和对照区(102)。对照区(102)位于纹路识别区(101)的至少一侧;纹路识别区(101)包括至少一个识别单元(110),对照区(102)包括至少一个对照单元(120);至少一个识别单元(110)包括第一介电材料层(111);至少一个对照单元(120)包括第二介电材料层(121);第一介电材料层(111)和第二介电材料层(121)由相同的材料制成;第一介电材料层(111)具有压电特性;以及第一介电材料层(111)的压电应变常数大于第二介电材料层(121)的压电应变常数。该超声波传感器(100)可以提升信噪比。
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