公开(公告)号：US10803284B2

公开(公告)日：2020-10-13

申请号：US16130678

申请日：2018-09-13

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Yang Zeng ,  Lihua Wang ,  Haochi Yu ,  Qing Zhang ,  Lingxiao Du

IPC: G06F1/16 ,  G06K9/00 ,  G06F3/042 ,  G06F3/041 ,  G02F1/1333 ,  G06F3/0488 ,  G06F21/32

Abstract: Provided are a display panel and a display device. The display panel includes a display assembly, the display assembly includes an array substrate and a plurality of pixel units disposed on the array substrate; and a fingerprint recognition assembly, the fingerprint recognition assembly disposed on one side of the array substrate facing away from the plurality of pixel units, the fingerprint recognition assembly includes a first substrate and at least one fingerprint recognition unit disposed on the first substrate, the fingerprint recognition unit includes a photosensitive region. The array substrate includes a plurality of transparent regions and a plurality of non-transparent regions. Along a direction perpendicular to the array substrate, at least a portion of the plurality of transparent regions in the array substrate is covered by a photosensitive region of any one of the at least one fingerprint recognition units.

公开(公告)号：US10784331B2

公开(公告)日：2020-09-22

申请号：US16455319

申请日：2019-06-27

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Yang Zeng ,  Feng Lu ,  Haochi Yu ,  Qing Zhang

IPC: H01L27/32

Abstract: A display panel includes a substrate layer and an organic light-emitting display layer located above a side of the substrate layer. The organic light-emitting display layer includes a plurality of sub-pixels. The display panel also includes a light-shielding conductive layer located above a side of the substrate layer adjacent to the organic light-emitting display layer. The light-shielding conductive layer includes a plurality of small imaging apertures, and an orthographic projection of each small imaging aperture on the organic light-emitting display layer is at least partially located between adjacent sub-pixels. The display panel also includes a photosensitive device layer located below a side of the light-shielding conductive layer away from a light-emitting surface of the display panel. The display panel also includes a power signal layer electrically connected to the light-shielding conductive layer.

公开(公告)号：US20190303637A1

公开(公告)日：2019-10-03

申请号：US16050002

申请日：2018-07-31

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Lihua Wang ,  Yang Zeng ,  Lingxiao Du ,  Qing Zhang ,  Haochi Yu

IPC: G06K9/00 ,  G09G3/3225

Abstract: Provided are a display panel and a display device. The display panel includes a display assembly and a fingerprint recognition assembly. The display assembly includes a base substrate, a plurality of pixel driving circuit units disposed on one side of the base substrate and at least two kinds of metal wires extending along a first direction, the plurality of pixel driving circuit units are arranged in a matrix along the first direction and a second direction, and a first gap region is formed between adjacent two of the plurality of pixel driving circuit units in the first direction. The display panel provided by the present disclosure provides the at least two kinds of metal wires to include a plurality of first type metal wires and a plurality of second type metal wires.

公开(公告)号：US10430636B2

公开(公告)日：2019-10-01

申请号：US15891112

申请日：2018-02-07

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Liang Xie ,  Yang Zeng ,  Lihua Wang ,  Haochi Yu

IPC: G06K9/00 ,  G09G3/3225 ,  G09G3/3233

Abstract: A display panel includes an array substrate including organic light-emitting structures, and at least one fingerprint identification unit. Each organic light-emitting structure has a first side facing the array substrate, and the fingerprint identification unit is disposed in a display region on the first side of the organic light-emitting structure. The display panel also includes a plurality of spacers and a plurality of anti-crosstalk pads. When being projected onto the array substrate, the orthogonal projection of each spacer is disposed between orthogonal projections of adjacent organic light-emitting structures. Each anti-crosstalk pad is disposed between a corresponding spacer and the fingerprint identification unit. An orthogonal projection of the anti-crosstalk pad onto the array substrate include a first region overlapping with the orthogonal projection of the spacer onto the array substrate. The anti-crosstalk pad blocks light scattered by the spacer from entering the at least one fingerprint identification unit.

公开(公告)号：US12008834B2

公开(公告)日：2024-06-11

申请号：US18322343

申请日：2023-05-23

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Hiroshi Haga ,  Shin Takeuchi ,  Kenji Sera ,  Kenichi Hayashi ,  Feng Lu ,  Haochi Yu ,  QiJun Yao

IPC: G06V40/13 ,  G06V40/12

CPC classification number: G06V40/1306 ,  G06V40/1365

Abstract: An ultrasonic sensor device includes a plurality of pixels each including an ultrasonic transducer, and a control circuit configured to control the plurality of pixels. Each of the plurality of pixels is configured to hold a signal received by the ultrasonic transducer therein and send the signal to the control circuit as a response signal. The control circuit is configured to acquire an excitation response signal, which is a response signal sent from a pixel after the ultrasonic transducer therein is excited, acquire a non-excitation response signal, which is a response signal sent from a pixel when the ultrasonic transducer therein is not excited, and correct the excitation response signal based on the non-excitation response signal.

公开(公告)号：US11940530B2

公开(公告)日：2024-03-26

申请号：US18150688

申请日：2023-01-05

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Lu Lian ,  Feng Lu ,  Haochi Yu

IPC: G06V40/13 ,  G01S7/539 ,  G01S15/89 ,  G06V10/98 ,  H01L29/786

CPC classification number: G01S15/8925 ,  G01S7/539 ,  G06V10/98 ,  G06V40/1306 ,  H01L29/78666 ,  H01L29/78675 ,  H01L29/7869 ,  H01L29/78696

Abstract: Provided are an ultrasonic fingerprint identification circuit, a driving method thereof, and a display device. The ultrasonic fingerprint identification circuit comprises fingerprint identification units each including an ultrasonic fingerprint identification sensor connected to a first node; a control module connected to a composite signal line, a first control signal line and the first node and configured to provide a reset potential to the first node and to provide a pull-up potential to the first node in response to a first level provided by the composite signal line; a reading module connected to a second control signal line, the first node and a reading signal line, and configured to read a detection signal of the first node. The first control signal line connected to one fingerprint identification unit is reused as the second control signal line connected to another fingerprint identification unit.

公开(公告)号：US11568669B2

公开(公告)日：2023-01-31

申请号：US17019821

申请日：2020-09-14

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Lu Lian ,  Feng Lu ,  Haochi Yu

IPC: G06V40/13 ,  G01S7/539 ,  G01S15/89 ,  G06V10/98 ,  H01L29/786

Abstract: Provided are an ultrasonic fingerprint identification circuit, a driving method thereof, and a display device. The ultrasonic fingerprint identification circuit comprises fingerprint identification units each including an ultrasonic fingerprint identification sensor connected to a first node; a control module connected to a composite signal line, a first control signal line and the first node and configured to provide a reset potential to the first node and to provide a pull-up potential to the first node in response to a first level provided by the composite signal line; a reading module connected to a second control signal line, the first node and a reading signal line, and configured to read a detection signal of the first node. The first control signal line connected to one fingerprint identification unit is reused as the second control signal line connected to another fingerprint identification unit.

公开(公告)号：US10810397B2

公开(公告)日：2020-10-20

申请号：US16130723

申请日：2018-09-13

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Yang Zeng ,  Lihua Wang ,  Haochi Yu ,  Qing Zhang ,  Lingxiao Du

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

Abstract: Provided are a display panel and a display device. The display panel includes a display assembly, the display assembly includes an array substrate and a plurality of pixel units disposed on the array substrate; a fingerprint recognition assembly disposed on one side of the array substrate facing away from the plurality of pixel units, the fingerprint recognition assembly includes a first substrate and at least one fingerprint recognition unit disposed on the first substrate; and the array substrate includes a plurality of transparent regions and a plurality of non-transparent regions, the array substrate further includes a plurality of metal wires, a ratio of a line width of a portion of at least one of the metal wires disposed in at least one respective transparent region to a line width of a portion of the at least of the metal wires disposed in a respective non-transparent region is less than 1.

公开(公告)号：US12185577B2

公开(公告)日：2024-12-31

申请号：US17521834

申请日：2021-11-08

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Shihao Tang ,  Yang Zeng ,  Haochi Yu ,  Yaodong Wu ,  Feng Lu ,  Qijun Yao ,  Jiaxian Liu ,  Ping An

IPC: H01L51/52 ,  H10K50/86 ,  H10K59/122

Abstract: Provided are a display panel and a display device, where the display panel includes a first light-emitting unit and a first color-resist block which are correspondingly disposed, where the first color-resist block includes a first display color-resist block and a first imaging color-resist block, the first light-emitting unit includes a first boundary and a second boundary which are disposed opposite to each other, the first boundary is located on a side of the second boundary near the first imaging color-resist block, the first display color-resist block includes a first edge and a second edge which are disposed opposite to each other, the first edge is located on a side of the second edge near the first imaging color-resist block, and a maximum distance between the first boundary and the first edge is greater than a maximum distance between the second boundary and the second edge.

公开(公告)号：US11232277B2

公开(公告)日：2022-01-25

申请号：US16600803

申请日：2019-10-14

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Yang Zeng ,  Feng Lu ,  Haochi Yu ,  Xiaoyue Su

IPC: G06K9/00 ,  G06F3/042 ,  G06K9/20 ,  G09G3/3208

Abstract: Disclosed are a display panel, a driving method thereof and a display device. The display panel includes: a light-shielding layer including imaging apertures, a light-emitting element layer including first light-emitting elements and second light-emitting elements, a touch functional layer, and a fingerprint recognition module. The orthographic projection of the second light-emitting element on the light-shielding layer is closer to the corresponding imaging aperture than the orthographic projection of the first light-emitting element on the light-shielding layer. In a first detection stage, the first light-emitting elements emit light, the second light-emitting elements do not emit light, and the fingerprint recognition module generates a first fingerprint image. In a second detection stage, the second light-emitting elements emit light, and the fingerprint recognition module generates a second fingerprint image. The first fingerprint image and the second fingerprint image are combined into a fingerprint image.