公开(公告)号：US20220130919A1

公开(公告)日：2022-04-28

申请号：US17333202

申请日：2021-05-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lizhen ZHANG ,  Sheng XU ,  Wei HE ,  Yi ZHOU ,  Qi YAO ,  Wusheng LI

IPC: H01L27/32 ,  G09G3/3233 ,  G06K9/00 ,  G06F3/041

Abstract: The present disclosure discloses a display panel, a manufacturing method, a driving method and a display device. When the display panel needs to display a normal image, a pixel driving circuit and a first control circuit drive an organic light emitting diode to emit light. When the display panel needs to perform fingerprint detection of a finger, the pixel driving circuit and a second control circuit drive a micro light emitting diode to emit light, so that the light emitted by the micro light emitting diode can be received by a photoelectric converter after being reflected by the finger, the photoelectric converter can output a detection signal, and furthermore, fingerprint information of the finger can be determined according to the detection signal.

公开(公告)号：US20220093710A1

公开(公告)日：2022-03-24

申请号：US17319409

申请日：2021-05-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shipei LI ,  Sheng XU ,  Wei HE ,  Ying ZHAO ,  Huili WU ,  Fang HE ,  Renquan GU ,  Lizhen ZHANG ,  Yi ZHOU ,  Wusheng LI ,  Qi YAO ,  Yang YUE

IPC: H01L27/32 ,  H01L51/56

Abstract: The present disclosure relates to the field of display technology, and proposes a display panel, a preparation method thereof, and a display apparatus. The display panel includes an array substrate, a planarization layer group, and a plurality of sub-pixels. The array substrate includes a switch array formed by a plurality of switch units. The planarization layer group is provided on the array substrate, and nano-scale grooves are provided on the planarization layer group. The sub-pixels are provided on a side of the planarization layer group away from the array substrate. The sub-pixel includes a plurality of first electrodes, wherein the first electrode is connected to the switch unit of the array substrate, a nano-scale second gap is provided between two adjacent first electrodes, and an orthographic projection of the second gap on the array substrate is located within an orthographic projection of the groove on the array substrate.

公开(公告)号：US20220020864A1

公开(公告)日：2022-01-20

申请号：US17210615

申请日：2021-03-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lizhen ZHANG ,  Zhi Wang ,  Yi Zhou ,  Wei He ,  Sheng XU ,  Huili Wu ,  Fang He ,  Xuefei Zhao ,  Shipei Li ,  Renquan Gu ,  Wusheng Li ,  Qi Yao ,  Jaiil Ryu

IPC: H01L29/66 ,  H01L29/06 ,  H01L29/417 ,  H01L29/786

Abstract: The present disclosure discloses a thin film transistor, a method for manufacturing thereof, an array substrate and a display device. The method for manufacturing the thin film transistor includes: forming a nanowire active layer on one side of a base substrate; forming a conductive protective layer on one side of the nanowire active layer away from the base substrate; forming an insulating layer on one side of the protective layer away from the nanowire active layer; etching the insulating layer using a dry etching process to form a first via hole exposing a first region of the protective layer and a second via hole exposing a second region of the protective layer; and forming a source-drain layer on one side of the insulating layer away from the protective layer, wherein the source-drain layer includes a first electrode and a second electrode.