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公开(公告)号：US12125310B2
公开(公告)日：2024-10-22
申请号：US18381451
申请日：2023-10-18
发明人： Yajie Feng , Cheng Li , Yue Geng , Kuiyuan Wang , Zefei Li , Chaoyang Qi , Yi Dai , Xiaoguan Li , Yingzi Wang
IPC分类号： G06V40/13 , H01L23/552 , H01L27/146
CPC分类号： G06V40/1318 , H01L23/552 , H01L27/14603 , H01L27/14612 , H01L27/1462 , H01L27/14623 , H01L27/14636 , H01L27/14678
摘要： An optical sensor array substrate and an optical fingerprint reader are provided. The optical sensor array substrate includes a substrate including a detection area which includes a plurality of photosensitive pixels. Photosensitive pixel includes: a TFT arranged on the substrate; a storage capacitor arranged on the substrate and having a first capacitor plate, and a second capacitor plate electrically connected to the source or drain of the TFT; a photosensitive element, having one end electrically connected to the second capacitor plate; a first electrode layer electrically connected to another end of the photosensitive element. On the substrate, an orthographic projection of the second capacitor plate at least partially overlaps with that of the first electrode layer, and the first capacitor plate is located in the same layer and has the same material as the gate of the TFT.
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公开(公告)号：US11822024B2
公开(公告)日：2023-11-21
申请号：US17462029
申请日：2021-08-31
发明人： Dexi Kong , Cheng Li , Kunjing Chung , Lin Zhou , Jingjie Su , Jie Zhang , Tiansheng Li , Ziran Liu , Jin Cheng
CPC分类号： G01T1/175 , G01T1/20184 , H04N5/32
摘要： Provided is a pixel sensing circuit, including a signal generation sub-circuit, a reset sub-circuit, an amplification sub-circuit, and a read sub-circuit. The reset sub-circuit is configured to provide a signal of a first power supply line to a first node under control of a reset signal line. The signal generation sub-circuit is configured to detect a light signal and convert the detected light signal into an electrical signal. The amplification sub-circuit is configured to provide an amplified electrical signal to a second node according to a signal provided by a second power supply line and under control of the first node. The read sub-circuit is configured to output the amplified electrical signal to a signal read line under control of a scan signal line.
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公开(公告)号：US20230177866A1
公开(公告)日：2023-06-08
申请号：US17437229
申请日：2020-11-30
发明人： Yajie Feng , Cheng Li , Yue Geng , Kuiyuan Wang , Zefei Li , Chaoyang Qi , Yi Dai , Xiaoguan Li , Yingzi Wang
IPC分类号： G06V40/13 , H01L23/552 , H01L27/146
CPC分类号： G06V40/1318 , H01L23/552 , H01L27/14603 , H01L27/14612 , H01L27/1462 , H01L27/14623 , H01L27/14636 , H01L27/14678
摘要： An optical sensor array substrate and an optical fingerprint reader are provided. The optical sensor array substrate includes a substrate including a detection area which includes a plurality of photosensitive pixels. Photosensitive pixel includes: a TFT arranged on the substrate; a storage capacitor arranged on the substrate and having a first capacitor plate, and a second capacitor plate electrically connected to the source or drain of the TFT; a photosensitive element located on one side of the storage capacitor away from the substrate, and having one end electrically connected to the second capacitor plate; a first electrode layer located on one side of the photosensitive element away from the substrate and electrically connected to another end of the photosensitive element. An orthographic projection of the second capacitor plate on the substrate at least partially overlaps with an orthographic projection of the first electrode layer on the substrate.
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公开(公告)号：US20240071127A1
公开(公告)日：2024-02-29
申请号：US18381451
申请日：2023-10-18
发明人： Yajie Feng , Cheng Li , Yue Geng , Kuiyuan Wang , Zefei Li , Chaoyang Qi , Yi Dai , Xiaoguan Li , Yingzi Wang
IPC分类号： G06V40/13 , H01L23/552 , H01L27/146
CPC分类号： G06V40/1318 , H01L23/552 , H01L27/14603 , H01L27/14612 , H01L27/1462 , H01L27/14623 , H01L27/14636 , H01L27/14678
摘要： An optical sensor array substrate and an optical fingerprint reader are provided. The optical sensor array substrate includes a substrate including a detection area which includes a plurality of photosensitive pixels. Photosensitive pixel includes: a TFT arranged on the substrate; a storage capacitor arranged on the substrate and having a first capacitor plate, and a second capacitor plate electrically connected to the source or drain of the TFT; a photosensitive element, having one end electrically connected to the second capacitor plate; a first electrode layer electrically connected to another end of the photosensitive element. On the substrate, an orthographic projection of the second capacitor plate at least partially overlaps with that of the first electrode layer, and the first capacitor plate is located in the same layer and has the same material as the gate of the TFT.
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公开(公告)号：US11244140B2
公开(公告)日：2022-02-08
申请号：US16905997
申请日：2020-06-19
发明人： Xiaozhou Zhan , Cheng Li , Yanna Xue , Yajie Feng , Kuiyuan Wang , Yue Geng
IPC分类号： G06K9/00
摘要： An electronic apparatus and a texture recognition device are described that relate to image recognition technologies. The texture recognition device includes a sensing layer, a transparent contact layer, a light shielding layer, and a plurality of light sources. The sensing layer includes a plurality of photosensitive units distributed in an array; the transparent contact layer is disposed on a side of the sensing layer; the light shielding layer is disposed between the sensing layer and the transparent contact layer, and including a plurality of light transmission portions arranged in an array; and the light sources are distributed in an array on a side of the light shielding layer close to the transparent contact layer, and light emitted by the light sources is reflected by the transparent contact layer and transmitted to the photosensitive units by passing through the light transmission portions.
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公开(公告)号：US11908226B2
公开(公告)日：2024-02-20
申请号：US16970091
申请日：2019-11-28
发明人： Yajie Feng , Cheng Li , Yanna Xue , Xiaozhou Zhan , Yue Geng , Kuiyuan Wang , Haibo Huang , Jingfu Tao
IPC分类号： G06V40/13 , G06V40/12 , G06V10/147 , G06V10/54 , F21V8/00 , H01L23/60 , H05K9/00 , G02B5/04 , G02B5/28
CPC分类号： G06V40/1318 , G02B6/0068 , G02B6/0073 , G06V10/147 , G06V10/54 , G06V40/1324 , G06V40/1359 , G06V40/1376 , H01L23/60 , H05K9/0067 , G02B5/04 , G02B5/281 , G02B5/285
摘要： A texture recognition device and a manufacturing method thereof are provided. The texture recognition device includes a backlight component and a photosensitive component. The photosensitive component is on a light-outputting side of the backlight component and configured to detect light emitted by the backlight component and reflected by a texture of a detection object to recognize an image of the texture of the detection object. The photosensitive component includes a plurality of photosensitive sensors and an antistatic layer on a side, away from the backlight component, of the plurality of photosensitive sensors, and orthographic projections of the plurality of photosensitive sensors on a plane where the antistatic layer is located are within the antistatic layer.
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公开(公告)号：US11587966B2
公开(公告)日：2023-02-21
申请号：US17402670
申请日：2021-08-16
发明人： Yajie Feng , Cheng Li , Yue Geng , Kuiyuan Wang , Chaoyang Qi , Yi Dai , Zefei Li
IPC分类号： G01J1/44 , H01L27/146 , G06V40/13
摘要： A fingerprint acquisition apparatus includes a plurality of photoelectric conversion units and a first shading pattern. The first shading pattern includes at least one first shading block including a first opening, and an orthographic projection of the first opening in the first shading block on the base substrate is within an orthographic projection of a target photoelectric conversion unit corresponding to the first shading block on the base substrate.
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公开(公告)号：US20220165772A1
公开(公告)日：2022-05-26
申请号：US17402670
申请日：2021-08-16
发明人： Yajie Feng , Cheng Li , Yue Geng , Kuiyuan Wang , Chaoyang Qi , Yi Dai , Zefei Li
IPC分类号： H01L27/146 , G06K9/00
摘要： A fingerprint acquisition apparatus includes a plurality of photoelectric conversion units and a first shading pattern. The first shading pattern includes at least one first shading block including a first opening, and an orthographic projection of the first opening in the first shading block on the base substrate is within an orthographic projection of a target photoelectric conversion unit corresponding to the first shading block on the base substrate.
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公开(公告)号：US11830278B2
公开(公告)日：2023-11-28
申请号：US17437229
申请日：2020-11-30
发明人： Yajie Feng , Cheng Li , Yue Geng , Kuiyuan Wang , Zefei Li , Chaoyang Qi , Yi Dai , Xiaoguan Li , Yingzi Wang
IPC分类号： G06V40/13 , H01L23/552 , H01L27/146
CPC分类号： G06V40/1318 , H01L23/552 , H01L27/1462 , H01L27/14603 , H01L27/14612 , H01L27/14623 , H01L27/14636 , H01L27/14678
摘要： An optical sensor array substrate and an optical fingerprint reader are provided. The optical sensor array substrate includes a substrate including a detection area which includes a plurality of photosensitive pixels. Photosensitive pixel includes: a TFT arranged on the substrate; a storage capacitor arranged on the substrate and having a first capacitor plate, and a second capacitor plate electrically connected to the source or drain of the TFT; a photosensitive element located on one side of the storage capacitor away from the substrate, and having one end electrically connected to the second capacitor plate; a first electrode layer located on one side of the photosensitive element away from the substrate and electrically connected to another end of the photosensitive element. An orthographic projection of the second capacitor plate on the substrate at least partially overlaps with an orthographic projection of the first electrode layer on the substrate.
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公开(公告)号：US11538848B2
公开(公告)日：2022-12-27
申请号：US17359507
申请日：2021-06-26
发明人： Yue Geng , Cheng Li , Zhonghuan Li , Kuiyuan Wang , Yi Dai , Zefei Li , Chaoyang Qi , Yajie Feng , Xiaoguan Li
IPC分类号： H01L27/146 , G06V40/13 , G06V40/12 , G06V10/147 , H01L27/30
摘要： Provided a fingerprint identification substrate and a manufacturing method therefor, a identification method, and a display apparatus. The fingerprint identification substrate includes a substrate and at least two kinds of identification pixels disposed on the substrate, a first identification pixel includes a first photodiode and a second identification pixel includes a second photodiode. The first photodiode includes a first electrode, a first photoelectric conversion layer and a second electrode, the second photodiode includes the first electrode, a second photoelectric conversion layer and the second electrode, and the first photoelectric conversion layer and the second photoelectric conversion layer have different spectral response characteristics to red light or infrared light.
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