公开(公告)号：US20220035503A1

公开(公告)日：2022-02-03

申请号：US17242511

申请日：2021-04-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Wenqu LIU ,  Qi YAO ,  Feng ZHANG ,  Zhao CUI ,  Libo WANG ,  Dongfei HOU ,  Xiaoxin SONG ,  Zhijun LV ,  Liwen DONG ,  Detian MENG ,  Jaiil RYU ,  Yang YUE ,  Haitao HUANG

IPC: G06F3/041 ,  G06F3/045 ,  G06F3/044 ,  G06K9/00

Abstract: The present disclosure provides a fingerprint recognition unit and a fabrication method thereof, a fingerprint recognition module and a display device. The fingerprint recognition unit includes: a bearing substrate; a receiving electrode layer on the bearing substrate; a piezoelectric material layer on a side of the receiving electrode layer away from the bearing substrate; and a driving electrode layer on a side of the piezoelectric material layer away from the receiving electrode layer. A density of the driving electrode layer is greater than 5 g/cm3, and a thickness of the driving electrode layer, a thickness of the piezoelectric material layer and a thickness of the bearing substrate are configured such that a vibration nodal plane of the piezoelectric material layer is within the piezoelectric material layer.

公开(公告)号：US20210264852A1

公开(公告)日：2021-08-26

申请号：US17254088

申请日：2020-03-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Renquan GU ,  Qi YAO ,  Jaiil RYU ,  Yingwei LIU ,  Zhiwei LIANG ,  Muxin DI ,  Wusheng LI

IPC: G09G3/3225 ,  H01L51/56 ,  H01L27/32

Abstract: A display substrate, a manufacturing method thereof and a display apparatus are provided. The display substrate includes a base substrate structure and a display structure on the base substrate structure, the display structure includes a plurality of light emitting units and is divided into multiple light-transmissive regions and multiple opaque regions; and a driving circuit for driving the display structure to display and comprising a pixel driving circuit between the base substrate structure and the display structure, and a peripheral circuit driving the pixel driving circuit and arranged on a side of the base substrate structure distal to the display structure and in the opaque regions, and the peripheral circuit is coupled to the pixel driving circuit through at least one through hole formed in the base substrate structure. The display substrate can realize frameless display, which is beneficial to realize seamless splicing display of a plurality of display substrates.