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公开(公告)号：US11756330B2
公开(公告)日：2023-09-12
申请号：US17745101
申请日：2022-05-16
发明人： Changfeng Li , Haisheng Wang , Xiaochuan Chen , Lei Wang , Yingming Liu , Xueyou Cao , Yunke Qin
IPC分类号： G06K9/00 , G06V40/13 , G06V10/145 , G06F3/044 , G06F3/041 , G06V10/141 , H10K59/131
CPC分类号： G06V40/1318 , G06F3/0412 , G06F3/0446 , G06V10/141 , G06V10/145 , H10K59/131
摘要： A biometric sensor configured to detect a biometric information is provided. The biometric sensor includes a light emitting layer and a touch detection layer; an encapsulating cover on the light emitting layer; a photo-sensing layer configured to detect at least a portion of a light totally reflected by a surface of the biometric sensor in touch with a skin of a user; a touch sensing circuit configured to determine a touch position of a touch; a processor configured to determine a scanning region based on the touch position, and configured to control the light emitting layer to form a scanning light source to scan the scanning region in a scanning pattern; and a biometric information analysis circuit configured to determine a light intensity distribution of a reflected light reflected by the surface of the biometric sensor, and configured to determine the biometric information based on the light intensity distribution.
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公开(公告)号：US20220270393A1
公开(公告)日：2022-08-25
申请号：US17745101
申请日：2022-05-16
发明人： Changfeng Li , Haisheng Wang , Xiaochuan Chen , Lei Wang , Yingming Liu , Xueyou Cao , Yunke Qin
IPC分类号： G06V40/13 , H01L27/32 , G06V10/141 , G06F3/044 , G06F3/041 , G06V10/145
摘要： A biometric sensor configured to detect a biometric information is provided. The biometric sensor includes a light emitting layer and a touch detection layer; an encapsulating cover on the light emitting layer; a photo-sensing layer configured to detect at least a portion of a light totally reflected by a surface of the biometric sensor in touch with a skin of a user; a touch sensing circuit configured to determine a touch position of a touch; a processor configured to determine a scanning region based on the touch position, and configured to control the light emitting layer to form a scanning light source to scan the scanning region in a scanning pattern; and a biometric information analysis circuit configured to determine a light intensity distribution of a reflected light reflected by the surface of the biometric sensor, and configured to determine the biometric information based on the light intensity distribution.
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公开(公告)号：US11373386B2
公开(公告)日：2022-06-28
申请号：US16343768
申请日：2018-08-13
发明人： Pinchao Gu , Haisheng Wang , Chunwei Wu , Yingming Liu , Rui Xu , Changfeng Li , Lijun Zhao , Yanan Jia , Yuzhen Guo , Yunke Qin
IPC分类号： G06K9/20 , G06K9/00 , H01L27/32 , G06V10/147 , G06V10/145 , G06V40/13 , G06V40/16
摘要： A device for identifying a pattern over a first surface includes a photosensitive layer, and a light-guiding layer disposed between the photosensitive layer and the first surface. The photosensitive layer includes a plurality of photosensitive elements, each configured to convert incident light into an electrical signal. The light-guiding layer includes a plurality of light-guiding units, each positionally corresponding to one of the plurality of photosensitive elements. Each light-guiding unit includes a plurality of light-transmitting portions, each configured to guide a light beam reflected from a feature of the pattern positionally corresponding thereto to transmit therethrough and reach one of the plurality of photosensitive elements corresponding to the each of the plurality of light-guiding units. The device can be used for identification of fingerprint, as well as other biometric or non-biometric features, and has a reduced thickness and an improved accuracy for pattern identification.
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公开(公告)号：US11348517B2
公开(公告)日：2022-05-31
申请号：US16609475
申请日：2019-01-18
发明人： Xiaoliang Ding , Xue Dong , Haisheng Wang , Yingming Liu , Wei Liu , Changfeng Li , Pengpeng Wang , Huizhong Zhu
IPC分类号： G09G3/3233 , G09G3/3266 , G09G3/3275
摘要： The present disclosure relates to the field of display technology, and more particularly, to a pixel circuit, a driving method thereof, and a display device. The pixel circuit may comprise a first switch element, a driving transistor, a storage capacitor, a second switch element, and a photosensitive element.
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公开(公告)号：US11341766B2
公开(公告)日：2022-05-24
申请号：US16327939
申请日：2018-08-14
发明人： Pinchao Gu , Xue Dong , Haisheng Wang , Yingming Liu , Rui Xu , Changfeng Li , Yuzhen Guo , Lijun Zhao , Yanan Jia , Yunke Qin
IPC分类号： G06V40/13 , H01L27/32 , G06V10/145 , G06V10/147
摘要： An optical structure, a display substrate and a display device are provided. The optical structure includes a first medium layer being transparent and an opaque layer which is arranged on the first medium layer and includes a plurality of vias. The optical structure is configured to allow light rays passing through each of the plurality of via to project to a corresponding light ray receiving area respectively.
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公开(公告)号：US11331666B2
公开(公告)日：2022-05-17
申请号：US16633016
申请日：2019-07-24
发明人： Yingming Liu , Xue Dong , Haisheng Wang , Xiaochuan Chen , Xiaoliang Ding , Lei Wang , Changfeng Li , Pinchao Gu
IPC分类号： B01L3/00
摘要： The present disclosure provides a micro-fluidic substrate, a micro-fluidic structure and a driving method thereof. The micro-fluidic substrate of the preset disclosure includes a substrate, and a plurality of driving electrodes on the substrate and configured to drive a droplet to move, the plurality of driving electrodes being in a same layer with a gap space between adjacent driving electrodes. The micro-fluidic substrate further includes: at least one auxiliary electrode on the substrate and configured to drive the droplet to move, an orthographic projection of the auxiliary electrode on the substrate at least partially overlapping with an orthographic projection of the gap space on the substrate, and the auxiliary electrode and the driving electrodes being in different layers.
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公开(公告)号：US11301662B2
公开(公告)日：2022-04-12
申请号：US16332221
申请日：2018-06-29
发明人： Yuzhen Guo , Haisheng Wang , Chunwei Wu , Yingming Liu , Lijun Zhao , Wei Liu , Changfeng Li , Rui Xu , Yanan Jia , Yunke Qin , Pinchao Gu , Xue Dong
摘要： The present disclosure is related to an ultrasonic fingerprint detection assembly. The ultrasonic fingerprint detection assembly may include an ultrasonic fingerprint detection circuit and a living body detection circuit. The living body detection circuit may be configured to carry out living body detection at a rest stage of the ultrasonic fingerprint detection circuit.
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公开(公告)号：US11232279B2
公开(公告)日：2022-01-25
申请号：US16648628
申请日：2019-09-30
发明人： Haisheng Wang , Xue Dong , Yingming Liu , Xiaoliang Ding , Lei Wang , Changfeng Li , Yapeng Li
摘要： A texture recognition device and an operation method of a texture recognition device are provided. The texture recognition device includes a light source array and an image sensor array. The light source array includes a plurality of light sources; the image sensor array is at a side of the light source array and includes a plurality of image sensors, and the plurality of image sensors are configured to receive light emitted from the plurality of light sources and reflected to the image sensors by a texture for a texture image collection; each of the image sensors includes a plurality of signal switches, and a signal of each of the image sensors is read through the plurality of signal switches for forming one image pixel of the texture image.
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公开(公告)号：US20220004731A1
公开(公告)日：2022-01-06
申请号：US16495034
申请日：2019-03-04
发明人： Changfeng Li , Haisheng Wang , Xiaochuan Chen , Lei Wang , Yingming Liu , Xueyou Cao , Yunke Qin
摘要： A method for detecting a biometric information includes providing a biometric sensor including a base substrate, a light emitting layer and a touch detection layer on the base substrate, an encapsulating cover on a side of the light emitting layer away from the base substrate, and a photo-sensing layer between the light emitting layer and the base substrate; determining a touch position of a touch by a touch sensing circuit; determining a scanning region based on the touch position; controlling the light emitting layer to form a scanning light source to scan the scanning region in a scanning pattern, the scanning region encompassing the touch position; determining a light intensity distribution of a reflected light reflected by the surface of the biometric sensor in touch with the skin of the user based on signals from the plurality of photosensors; and determining the biometric information based on the light intensity distribution.
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公开(公告)号：US11188772B2
公开(公告)日：2021-11-30
申请号：US16765936
申请日：2019-11-28
发明人： Haisheng Wang , Xue Dong , Yingming Liu , Xiaoliang Ding , Lei Wang , Changfeng Li , Yapeng Li
IPC分类号： G06K9/20 , G06K9/00 , G06F3/041 , G09G3/3208
摘要： A drive method for a texture recognition device and a texture recognition device. The texture recognition device includes a light source array and an image sensor array. The image sensor array includes a plurality of image sensors, the plurality of image sensors are configured to receive light emitted from the plurality of sub-light sources and then reflected by a texture to the plurality of image sensors for a texture collection; the drive method includes: at a first moment, the light source array operating to provide a first photosensitive light source, and at the first moment or a second moment different from the first moment, the light source array operating to provide a second photosensitive light source. A first imaging range of the first photosensitive light source on the image sensor array partially overlaps a second imaging range of the second photosensitive light source on the image sensor array.
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