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公开(公告)号：US11301076B2
公开(公告)日：2022-04-12
申请号：US16301523
申请日：2018-02-11
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： ChihJen Cheng , Yuzhen Guo , Pengpeng Wang , Xiaoliang Ding , Xueyou Cao , Yanling Han , Wei Liu
Abstract: A piezoresistive detection circuit includes a first transistor, a second transistor, a fixed resistor, and a pressure sensitive resistor, a first end of the fixed resistor is connected with a first voltage signal terminal, and a second end of the fixed resistor is connected with a first node, a first end of the pressure sensitive resistor is connected with the first node, and a second end of the pressure sensitive resistor is grounded, a gate electrode of the first transistor is connected with the first node, a source electrode of the first transistor is connected with a second voltage signal terminal, and a drain electrode of the first transistor is connected with a source electrode of the second transistor, a gate electrode of the second transistor is connected with a scanning signal line, and a drain electrode of the second transistor is connected with a readline.
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公开(公告)号：US11255732B2
公开(公告)日：2022-02-22
申请号：US16338361
申请日：2018-09-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xueyou Cao , Haisheng Wang , Chunwei Wu , Xiaoliang Ding , Yanling Han , ChihJen Cheng , Wei Liu , Ping Zhang , Tianhang Luan , Hao Li , Shaoning Guo , Bingqian Zhu
Abstract: Provided are a temperature sensor, an array substrate, and a display device. In the temperature sensor, a low-pass filter is disposed between a ring oscillator and a comparator, so that a square-wave signal output from the ring oscillator passes through the low-pass filter and a high-frequency component in the square-wave signal output from the ring oscillator is directly filtered out by the low-pass filter, thereby improving a signal-to-noise ratio of the ring oscillator and a test accuracy of the temperature sensor.
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公开(公告)号：US10818226B2
公开(公告)日：2020-10-27
申请号：US16072878
申请日：2017-11-21
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiaoliang Ding , Haisheng Wang , Yingming Liu , Chunwei Wu , ChihJen Cheng , Pengpeng Wang , Wei Liu
IPC: G09G3/3233 , G09G3/3258 , G09G3/3266 , G09G3/3275 , H01L27/146
Abstract: Aspects of the present disclosure provide a pixel circuit, a method for driving the same, and a display apparatus. The pixel circuit comprises a display driving circuit. The display driving circuit comprises a reset sub-circuit, a writing sub-circuit, a driving sub-circuit, a light-emitting control sub-circuit, and a light-emitting device. The reset sub-circuit is configured to reset the driving sub-circuit. The writing sub-circuit is configured to write a data voltage into the driving sub-circuit. The light-emitting control sub-circuit is connected to the driving sub-circuit and an anode of the light-emitting device and is configured to provide driving current, through the driving sub-circuit, for causing the light-emitting device to emit light. The pixel circuit further comprises a detection circuit configured to collect incident light and output a collection result to the read signal line. One or more transistors are shared between the detection circuit and the display driving circuit.
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公开(公告)号：US20190099096A1
公开(公告)日：2019-04-04
申请号：US16140005
申请日：2018-09-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Pengpeng Wang , Haisheng Wang , Xiaoliang Ding , ChihJen Cheng
IPC: A61B5/024 , A61B5/0245 , H01L51/52 , H01L27/32 , G03F7/09
Abstract: A display device is provided. The display device includes a base substrate; an encapsulation layer, on the base substrate; an organic light-emitting display element between the base substrate and the encapsulation layer configured to emit a first light passing though the base substrate and a second light passing through the encapsulation layer to display image; a photosensitive layer between the base substrate and the encapsulation layer configured to detect a light reflected from a skin of a user and generate a photocurrent signal; and a photosensitive detection circuit coupled to the photosensitive layer configured to determine heart rate information according to the photocurrent signal generated by the photosensitive layer and output the heart rate information.
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公开(公告)号：US11222590B2
公开(公告)日：2022-01-11
申请号：US16346358
申请日：2018-10-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wei Liu , Xue Dong , Haisheng Wang , Xiaoliang Ding , Yingming Liu , ChihJen Cheng , Xueyou Cao , Yanling Han , Changfeng Li , Pengpeng Wang , Ping Zhang , Rui Xu
IPC: G09G3/3258 , H01L27/32 , G09G3/3233
Abstract: An electrical signal detection module includes a photoelectrical signal application circuitry, an operational amplifier, a gain control circuitry and a master control circuitry. The gain control circuitry includes at least two gain control sub-circuitries connected in parallel to each other, and a discharge switching sub-circuitry connected in parallel to the gain control sub-circuitries. Each gain control sub-circuitry includes a gain switching sub-circuitry and a gain capacitive sub-circuitry connected in series to each other. The master control circuitry is configured to apply a discharge switching signal to the discharge switching sub-circuitry, and apply a gain switching control signal to the corresponding gain switching sub-circuitry. The gain switching sub-circuitry is configured to control a first end and a second end of the gain switching sub-circuitry to be electrically connected to each other in accordance with the gain switching control signal. The discharge switching sub-circuitry is configured to enable a first end of the gain capacitive sub-circuitry connected to the gain switching sub-circuitry to be electrically connected to, or electrically disconnected from, a second end of the gain capacitive sub-circuitry in accordance with the discharge switching signal.
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Patent Agency Ranking
公开(公告)号：US11137829B2
公开(公告)日：2021-10-05
申请号：US16099109
申请日：2018-03-07
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yanling Han , Xue Dong , Jing Lv , Haisheng Wang , Chunwei Wu , Xiaoliang Ding , Pengpeng Wang , Xueyou Cao , ChihJen Cheng , Wei Liu , Ping Zhang
Abstract: The present disclosure discloses a drive method for driving a touch apparatus. The touch apparatus includes a plurality of touch electrodes. In the drive method, a touch detection signal is applied to the plurality of touch electrodes within a first time interval. A tactile feedback signal is applied to the plurality of touch electrodes within a second time interval. The first time interval and the second time interval are alternated but not overlapped. The present disclosure further discloses a touch apparatus and a touch display apparatus.
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公开(公告)号：US20190226920A1
公开(公告)日：2019-07-25
申请号：US16330312
申请日：2018-06-12
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lijun Zhao , Yingming Liu , Haisheng Wang , ChihJen Cheng , Pengpeng Wang , Chunwei Wu
IPC: G01K7/01 , H01L23/34 , H01L27/12 , H01L29/786
Abstract: The present disclosure discloses a temperature sensor, a display panel, and a display apparatus, in the field of sensors. The temperature sensor includes a ring oscillator consisting of n levels of phase inverters, where n is an odd number greater than or equal to 1. Each level of phase inverter includes a first thin film transistor (TFT) and a second TFT that are connected in series. An on/off state of the second TFT is configured to be in a normally-on state, an on/off state of the first TFT is configured to be determined by a signal input to the phase inverter, and mobility of an active layer material of the first TFT is greater than mobility of an active layer material of the second TFT.
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8.发明申请公开(公告)号：US20190220129A1
公开(公告)日：2019-07-18
申请号：US16107597
申请日：2018-08-21
Applicant: BOE Technology Group Co., Ltd.
Inventor： ChihJen Cheng , Haisheng Wang , Yuzhen Guo , Xiaoliang Ding , Yingming Liu , Pengpeng Wang , Xueyou Cao
CPC classification number: G06F3/0414 , G01L1/205 , G01R27/14 , G06F3/045
Abstract: The present disclosure discloses a pressure detection circuit, a pressure detection circuit array, a touch panel, and a detection method. The pressure detection circuit comprises: a collection sub-circuit configured to receive an external pressure signal and convert the external pressure signal into a voltage signal under the control of a gating signal; and a reading sub-circuit configured to receive the voltage signal, and output a detection output signal related to the voltage signal, wherein the collection sub-circuit and the reading sub-circuit are powered by a constant current source respectively.
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公开(公告)号：US11648552B2
公开(公告)日：2023-05-16
申请号：US16291503
申请日：2019-03-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ping Zhang , Haisheng Wang , Xiaoliang Ding , Wei Liu , Xueyou Cao , Pengpeng Wang , Yanling Han , Jiabin Wang , Yangbing Li , ChihJen Cheng , Likai Deng
IPC: B01L3/00
CPC classification number: B01L3/50273 , B01L2300/0645 , B01L2300/0887 , B01L2300/165 , B01L2400/0439
Abstract: The present disclosure provides a microfluidic device, a driving method thereof and a microfluidic system. The microfluidic device includes a first substrate and a second substrate disposed opposite to each other, and a microcavity provided between the first and second substrates for accommodating droplets. The microfluidic device further includes at least one ultrasonic layer provided between the first and second substrates. The at least one ultrasonic layer includes a plurality of ultrasonic sensors configured to perform at least one of detection operation and driving operation to the droplets accommodated in the microcavity.
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公开(公告)号：US11408777B2
公开(公告)日：2022-08-09
申请号：US16330312
申请日：2018-06-12
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lijun Zhao , Yingming Liu , Haisheng Wang , ChihJen Cheng , Pengpeng Wang , Chunwei Wu
IPC: H01L27/12 , G01K7/01 , H01L23/34 , H01L29/786 , G09F9/00
Abstract: The present disclosure discloses a temperature sensor, a display panel, and a display apparatus, in the field of sensors. The temperature sensor includes a ring oscillator consisting of n levels of phase inverters, where n is an odd number greater than or equal to 1. Each level of phase inverter includes a first thin film transistor (TFT) and a second TFT that are connected in series. An on/off state of the second TFT is configured to be in a normally-on state, an on/off state of the first TFT is configured to be determined by a signal input to the phase inverter, and mobility of an active layer material of the first TFT is greater than mobility of an active layer material of the second TFT.
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