公开(公告)号：US20210232253A1

公开(公告)日：2021-07-29

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

IPC: G06F3/041 ,  H01L27/32

Abstract: Embodiments of the present disclosure relate to a piezoresistive detection circuit, a piezoresistive detection substrate, a display panel and a display device. The piezoresistive detection circuit includes a first transistor, a second transistor, a fixed resistor, and a pressure sensitive resistor.

公开(公告)号：US20210342564A1

公开(公告)日：2021-11-04

申请号：US16316789

申请日：2018-04-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang DING ,  Haisheng WANG ,  Yingming LIU ,  ChihJen CHENG ,  Wei LIU ,  Xueyou CAO ,  Pengpeng WANG

IPC: G06K9/00

Abstract: The present disclosure provides a fingerprint detecting device, including: a photosensitive sensing component, a first electrode of which is coupled to a reference signal terminal, a second electrode of which is coupled to a pull-down node; a reset component, coupled to a reset terminal and the pull-down node, configured to reset the pull-down node in a first stage; a voltage output component, coupled to the pull-down node, a selection terminal and an output terminal of the fingerprint detecting device, configured to output a voltage signal to the output terminal of the fingerprint detecting device according to the potential of the pull-down node, the first stage to a second stage, an amount of change in a voltage signal output to the output terminal of the fingerprint detecting device is positively correlated with an amount of change in the potential of the pull-down node.

公开(公告)号：US20190355302A1

公开(公告)日：2019-11-21

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.

公开(公告)号：US20190212820A1

公开(公告)日：2019-07-11

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

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/044

CPC classification number: G06F3/016 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

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.