公开(公告)号：US20230144932A1

公开(公告)日：2023-05-11

申请号：US17915909

申请日：2021-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yang ZHAO ,  Xinkai WU ,  CHunyen LIU ,  Xiaojun GUO ,  Hu HE ,  Xiaokuan YIN ,  Xiao HOU

IPC: G06V40/13 ,  H10K39/34 ,  G02F1/1333

CPC classification number: G06V40/1318 ,  H10K39/34 ,  G02F1/13338 ,  H10K59/12

Abstract: The present disclosure relates to display assemblies, display apparatuses, and fingerprint recognition methods. One example display assembly includes a display panel and a fingerprint recognition module located on a light-emitting surface of the display panel. The fingerprint recognition module includes multiple fingerprint recognition units. Each fingerprint recognition unit includes at least one phototransistor and one switch transistor. The phototransistor includes a first active layer, a first gate, a first source, and a first drain. A material for making the first active layer includes an organic semiconductor material. The first drain and the first gate partially overlap to form a first capacitor. The switch transistor includes a second active layer, a second gate, a second source, and a second drain. The fingerprint recognition module includes a first metal layer. The first source, the first drain, the second source, and the second drain are all located at the first metal layer.

公开(公告)号：US20230147182A1

公开(公告)日：2023-05-11

申请号：US17915920

申请日：2021-03-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yang ZHAO ,  Xinkai WU ,  Chun Yen LIU ,  Xiaojun GUO ,  Haiming HE ,  Xiao HOU ,  Xiaokuan YIN

IPC: H10K59/65 ,  G06V40/13 ,  G06F3/041 ,  G09G3/3225 ,  H10K59/40

CPC classification number: H10K59/65 ,  G06V40/1318 ,  G06F3/0416 ,  G09G3/3225 ,  H10K59/40 ,  G09G2380/08

Abstract: The present disclosure relates to display assemblies, display apparatus, and driving methods. One example display assembly includes a display panel and a function module located on a light-emitting surface of the display panel. A function unit in the function module includes at least one phototransistor and one switch transistor. The phototransistor includes a first active layer, a first gate, a first source, and a first drain. A material for making the first active layer includes an organic semiconductor material. The first active layer is located on a side of the first gate away from the display panel. The first drain and the first gate partially overlap to form a first capacitor. The switch transistor includes a second active layer, a second gate, a second source, and a second drain. The function unit includes a transparent electrode located on the first active layer and overlapping the first active layer.