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公开(公告)号：US20200343320A1
公开(公告)日：2020-10-29
申请号：US16541856
申请日：2019-08-15
Applicant: Shanghai Tianma Micro-Electronics Co.,Ltd.
Inventor： Yang ZENG , Feng LU , Haochi YU , Xiaoyue SU
Abstract: Display panel and display device are provided. The display panel includes fingerprint recognition units, a substrate, drive circuits, and organic light-emitting units. A distance between two adjacent drive circuits in a drive circuit group is less than a distance between two adjacent drive circuits in two adjacent drive circuit groups along a first direction. The drive circuits from a first row to an i-th row is a first drive circuit, and the drive circuits from a j-th row to an M-th row is a second drive circuit. A first direction component, along the first direction, of each of vias that correspond to at least a portion of the first drive circuit pointing to a corresponding electrically-connected anode, and a second direction component, along the first direction, of each of vias that correspond to at least a portion of the second drive circuit pointing a corresponding electrically-connected anode, are opposite components.
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公开(公告)号：US20200380238A1
公开(公告)日：2020-12-03
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 , G09G3/3208 , G06F3/042 , G06K9/20
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.
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公开(公告)号：US20190236325A1
公开(公告)日：2019-08-01
申请号：US15952429
申请日：2018-04-13
Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
Inventor： Yang ZENG , Lihua WANG , Haochi YU , Liang XIE
IPC: G06K9/00
CPC classification number: G06K9/001 , G06K9/0004 , G06K9/0008
Abstract: A display apparatus and a fingerprint identification method are provided. An exemplary display apparatus includes a display region including a fingerprint identification region; a plurality of fingerprint identification pixels disposed in the fingerprint identification region and configured to provide a fingerprint identification light; a fingerprint identification array including fingerprint sensing units disposed in the fingerprint identification region and configured to receive the fingerprint identification light after being reflected by a touching body; and a controller electrically connected to the fingerprint sensing units and configured to obtain a whole image of a to-be-identified fingerprint, determine position coordinates of characteristic points on the display apparatus according to the whole image, control a first number of the fingerprint identification pixels to emit light according to the position coordinates to obtain local images at characteristic points of the to-be-identified fingerprint, and identify the to-be-identified fingerprint according to the local images.
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公开(公告)号：US20240054755A1
公开(公告)日：2024-02-15
申请号：US18364871
申请日：2023-08-03
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Genshiro KAWACHI , Hiroshi HAGA , Feng LU , QiJun YAO , Haochi YU
IPC: G06V10/60 , G06V10/141 , G06V10/75
CPC classification number: G06V10/60 , G06V10/141 , G06V10/758
Abstract: A sensor device includes a plurality of pixels and a controller configured to correct measurement signals of the plurality of pixels. Each of the plurality of pixels includes a photodetector and a pixel circuit configured to output a signal from the photodetector. The controller is configured to acquire an unknown measured signal from one of the plurality of pixels, and correct the unknown measured signal of the one pixel with a correction coefficient which is based on ratios between values obtained from measured signals of the one pixel under a plurality of reference lights having different intensities and statistic values obtained from the values obtained from the measured signals of the plurality of pixels under a plurality of reference lights having different intensities.
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公开(公告)号：US20200242319A1
公开(公告)日：2020-07-30
申请号：US16453928
申请日：2019-06-26
Applicant: Shanghai Tianma Micro-Electronics Co.,Ltd.
Inventor： Yang ZENG , Feng LU , Haochi YU , Qing ZHANG
Abstract: A display apparatus is provided in the present disclosure. The display apparatus includes a cover layer having a first surface and an opposing second surface along a first direction, and the first surface is a touch-control operation surface of the display apparatus. The display apparatus further includes a light-shielding layer including a plurality of light-transmitting pinholes, and a light-sensitive sensor layer. The light-transmitting pinholes include first and second light-transmitting pinholes adjacent to each other. An imaging area on the light-sensitive sensor layer corresponding to the first light-transmitting pinhole is a first imaging area. Sensing areas on the light-sensitive sensor layer for detecting images corresponding to the first and the second light-transmitting pinholes are a first and a second sensing areas, respectively. The first imaging area covers and exceeds the first sensing area, and the first imaging area is non-overlapped with the second sensing area.
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Patent Agency Ranking
公开(公告)号：US20230386246A1
公开(公告)日：2023-11-30
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
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.
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公开(公告)号：US20180165498A1
公开(公告)日：2018-06-14
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
CPC classification number: G06K9/0004 , G09G3/3225 , G09G3/3233 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0262 , G09G2354/00
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.
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8.发明公开公开(公告)号：US20230161032A1
公开(公告)日：2023-05-25
申请号：US18150688
申请日：2023-01-05
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
CPC classification number: G01S15/8925 , G01S7/539 , G06V40/1306 , G06V10/98 , H01L29/78666
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.
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公开(公告)号：US20220069261A1
公开(公告)日：2022-03-03
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
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.
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公开(公告)号：US20200242320A1
公开(公告)日：2020-07-30
申请号：US16453994
申请日：2019-06-26
Applicant: Shanghai Tianma Micro-Electronics Co.,Ltd.
Inventor： Yang ZENG , Feng LU , Haochi YU , Qing ZHANG
IPC: G06K9/00 , G06K9/20 , H01L27/146 , G02B5/30
Abstract: Display panel, display apparatus and method for fingerprint recognition are provided. The display panel includes a base layer, a light-emitting layer and a light-shielding layer having at least first and second imaging pinholes. The second imaging pinhole is disposed between two adjacent first imaging pinholes. The display panel further includes a light-sensitive fingerprint sensor layer and a fingerprint recognition light source generating first light during a first time period and second light during a second time period. The first light passes through the first imaging pinholes and the second imaging pinholes do not allow the first light to pass through, and the second light passes through the second imaging pinholes and the first imaging pinholes do not allow the second light to pass through.
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