Patents by Inventor Pengpeng Wang

Pengpeng Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190310296
    Abstract: A sense circuit for a piezoresistive sensor is provided that comprises: an energy storage circuit coupled to the piezoresistive sensor via a first node; a charge control circuit coupled to the first node and configured to charge the energy storage circuit to a predetermined potential; a discharge control circuit configured to allow the energy storage circuit to discharge through the piezoresistive sensor; and a readout circuit coupled to the first node and configured to output a sensed voltage based on a level of charges stored by the energy storage circuit
    Type: Application
    Filed: November 30, 2018
    Publication date: October 10, 2019
    Inventors: Chihjen CHENG, Xiaoliang DING, Pengpeng WANG, Xueyou CAO, Yuzhen GUO
  • Publication number: 20190294850
    Abstract: The present disclosure discloses a fingerprint recognition device, a display substrate and a display apparatus. The fingerprint recognition device includes: at least one fingerprint detection component; at least one fingerprint recognition signal line, the fingerprint detection component outputs a detection current to the fingerprint recognition signal line; at least one noise reduction circuit serially coupled in the fingerprint recognition signal line, the noise reduction circuit being a resistive component; and a fingerprint determination circuit coupled to the fingerprint recognition signal line, configured to determine a morphology of a fingerprint according to a current signal, subjected to a noise reduction by the noise reduction circuit and transmitted by the fingerprint recognition signal line.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 26, 2019
    Inventors: Xueyou CAO, Xue DONG, Jing LV, Haisheng WANG, Xiaoliang DING, Yingming LIU, Yanling HAN, Wei LIU, Chunwei WU, Pengpeng WANG, Ping ZHANG
  • Publication number: 20190280039
    Abstract: A display substrate, a method for manufacturing the display substrate, a fingerprint recognition device and a display device are provided. The display substrate includes a base substrate, a black matrix sensor provided on the base substrate and a plurality of functional sensors which are spaced apart from each other, the black matrix sensor blocks at least visible light and includes a plurality of first extension portions and a plurality of second extension portions, and the first extension portions intersect the second extension portions to form a plurality of hollow regions. Orthographic projections of the functional sensors on the black matrix sensor are within the region where the black matrix sensor is located.
    Type: Application
    Filed: September 28, 2017
    Publication date: September 12, 2019
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanan JIA, Xue DONG, Jing LV, Haisheng WANG, Yingming LIU, Xiaoliang DING, Yuzhen GUO, Wei LIU, Yangling HAN, Changfeng LI, Pengpeng WANG, Chun Wei WU, Rui XU, Lijun ZHAO
  • Publication number: 20190281242
    Abstract: An active pixel sensor, a driving method thereof, an imager and an electronic device are disclosed. The active pixel sensor includes: a photosensitive element, configured to convert a received light signal into an electrical signal; a follower circuit, connected with the photosensitive element and configured to convert the electrical signal into an output voltage, the follower circuit including a source follower transistor; and an adjustment circuit, connected with the follower circuit and configured to collect the output voltage of the follower circuit and to adjust a bias current of the source follower transistor according to the output voltage, so as to adjust the output voltage to a preset range.
    Type: Application
    Filed: January 30, 2018
    Publication date: September 12, 2019
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chih Jen CHENG, Pengpeng WANG, Wei LIU, Xiaoliang DING, Rui XU, Changfeng LI
  • Publication number: 20190279566
    Abstract: A pixel circuit and a drive method thereof and a display panel are provided. The pixel circuit includes a light-emitting element, a light-emitting control circuit and a photoelectric sense circuit. The light-emitting control circuit is configured to drive the light-emitting element to emit light and includes a first end, a second end and a third end; the first end is connected with a first power supply terminal, and the second end is connected with one end of the light-emitting element. Other end of the light-emitting element is connected with a second power supply terminal. The photoelectric sense circuit is configured to sense light incident thereon and includes a sense signal output end and a sense voltage input end, the sense voltage input end is connected with the second power supply terminal, and the sense signal output end is connected with the third end of the light-emitting control circuit.
    Type: Application
    Filed: December 19, 2017
    Publication date: September 12, 2019
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengpeng WANG, Xue DONG, Haisheng WANG, Xiaoliang DING, Yingming LIU
  • Publication number: 20190273643
    Abstract: Embodiments of the present disclosure relate to a data transmission method and a communications device. The method includes: performing an interpolation operation on a first signal sequence to obtain a second signal sequence, where a length of the second signal sequence is greater than a length of the first signal sequence; mapping the second signal sequence onto a subcarrier to obtain a second signal sequence that is on the subcarrier; performing an inverse fast Fourier transform (IFFT) on the second signal sequence that is on the subcarrier, to obtain a time-domain signal; and transmitting the time-domain signal. According to the embodiments of the present disclosure, a delay deviation can be better resisted.
    Type: Application
    Filed: April 1, 2019
    Publication date: September 5, 2019
    Inventors: Pengpeng DONG, Mengying DING, Yuanzhou HU, Zongjie WANG
  • Publication number: 20190265839
    Abstract: The present disclosure relates to image recognition devices and touch panels. An image recognition apparatus comprises a plurality of depth cameras including a plurality of depth camera units, each depth camera including two depth camera units, wherein the plurality of depth camera units is arranged in an array on a same substrate. According to the image recognition devices and touch panels of the embodiments, the accuracy of the depth detection can be improved.
    Type: Application
    Filed: December 28, 2018
    Publication date: August 29, 2019
    Inventors: Pengpeng WANG, Haisheng WANG, Xiaoliang DING, Chihjen CHENG, Yanling HAN, Ping ZHANG
  • Publication number: 20190261335
    Abstract: In a data transmission method, a terminal device receives control information, and receives data of a transport block (TB); and the terminal devices obtains m code block (CB) groups in the TB, where m is a positive integer, m=min(NCB_re, NGroup_max), NCB_re is a quantity of CBs in the TB, NGroup_max is a maximum value of a quantity of CB groups, each of the m CB groups includes at least one CB, NCB_re is determined based on a TB size (TBS) and a maximum value of a data size of a CB, and the TBS is determined based on the control information.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Inventors: Jinlin PENG, Pengpeng DONG, Zongjie WANG, Peng ZHANG
  • Publication number: 20190243493
    Abstract: A touch panel, a method of driving a touch panel, and a touch device are provided. The touch panel includes a first detection electrode, a piezoelectric material layer and a position touch structure. The piezoelectric material layer is on the first detection electrode. The position touch structure comprises a touch electrode or a plurality of touch electrodes and is on the piezoelectric material layer. The touch electrode or at least one of the plurality of touch electrodes is configured to function as a second detection electrode as well, and the second detection electrode together with the piezoelectric material layer and the first detection electrode constitutes a piezoelectric sensing structure for implementing a touch pressure detection.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 8, 2019
    Inventors: Xiaoliang Ding, Xue Dong, Haisheng Wang, Yingming Liu, Wei Liu, ChihJen Cheng, Yuzhen Guo, Pengpeng Wang
  • Patent number: 10372249
    Abstract: The present disclosure provides an in-cell touch screen, a manufacturing method thereof, and a display apparatus. The touch screen comprises a pixel region disposed over a base substrate. The pixel region is surrounded by a first barrier, which is configured to insulate the pixel region. The pixel region includes a first electrode; a light-emitting layer, disposed over the first electrode; and a second electrode, disposed over the light-emitting layer. The second electrode expands over an opening of the first barrier so as to be able to electrically connect with a third electrode outside the pixel region.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: August 6, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Wei Liu, Xue Dong, Xiaochuan Chen, Haisheng Wang, Xiaoliang Ding, Shengji Yang, Yingming Liu, Weijie Zhao, Hongjuan Liu, Changfeng Li, Pengpeng Wang
  • Patent number: 10374115
    Abstract: A microfluidic system includes a liquid drop accommodation space, an array of photosensitivity detection circuits and an array of driving circuits between an upper substrate and a lower substrate. Each photosensitivity detection circuit includes a photosensitive transistor and a first gating transistor. The photosensitive transistor has a gate electrode coupled to a first scan signal line, a source electrode coupled to a first power supply voltage signal line, and a drain electrode coupled to a source electrode of the first gating transistor. The first gating transistor has a gate electrode coupled to a second scan signal line, and a drain electrode coupled to a read signal line. Each driving circuit includes a driving transistor and a driving electrode. The driving transistor has a gate electrode coupled to a third scan signal line, a source electrode coupled to a data signal line, and a drain electrode coupled to the driving electrode.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: August 6, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueyou Cao, Xue Dong, Haisheng Wang, Xiaoliang Ding, Yingming Liu, Yanling Han, Yuzhen Guo, Pengpeng Wang, Chihjen Cheng, Ping Zhang, Wei Liu, Likai Deng, Yangbing Li
  • Publication number: 20190237480
    Abstract: An array substrate includes: a plurality of pixel units arranged in an array, selection lines, a reset circuit and readout circuits. Second terminals of transistors in pixel units belonging to a same column are connected to at least two of the read lines, so that a part of the pixel units are connected to a same read line, and another part of the pixel units are connected to the other one of the at least two of the read lines. For each column of the pixel units, each of the read lines is connected to one of the readout circuits corresponding to the column of the pixel units through a switching element; and for each column of the pixel units, each of the read lines is connected to the reset circuit through a switching element.
    Type: Application
    Filed: December 13, 2018
    Publication date: August 1, 2019
    Inventors: Chih Jen CHENG, Pengpeng WANG, Wei LIU, Xueyou CAO, Yanling HAN, Ping ZHANG, Xiaoliang DING
  • Publication number: 20190237591
    Abstract: The light detecting device provided by the present disclosure includes a reset circuit, a photoelectric conversion circuit, a voltage follower circuit, a selection circuit, and a light fluctuation detecting circuit. The light fluctuation detecting circuit is connected to each of a light fluctuation detection control terminal, a photoelectric node and an input terminal of the voltage follower circuit. The light fluctuation detecting circuit is configured to enable or disable a connection between the photoelectric node and the input terminal of the voltage follower circuit. When the light fluctuation detecting circuit is turned off, a drain current of the light fluctuation detecting circuit may change as the brightness of light received by the light fluctuation detecting circuit changes. The voltage at the output node is used to determining brightness of light received by the photoelectric conversion circuit and whether is a fluctuation in the in the brightness of the light.
    Type: Application
    Filed: November 2, 2018
    Publication date: August 1, 2019
    Inventors: Chihjen Cheng, Pengpeng Wang, Wei Liu, Xueyou Cao, Xiaoliang Ding, Yanling Han, Ping Zhang
  • Patent number: 10365438
    Abstract: A backlight unit, a liquid crystal display and method of manufacturing the same are provided. The backlight unit includes a backlight source and a diffraction grating disposed on the backlight source. The diffraction grating is etched on the backlight source, each of monochromatic light emitting units in the backlight source corresponds to N grating patterns on the diffraction grating, where N is a natural number greater than 1.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: July 30, 2019
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Xiaochen Niu, Xue Dong, Xiaochuan Chen, Wenqing Zhao, Ming Yang, Qian Wang, Pengcheng Lu, Jian Gao, Lei Wang, Rui Xu, Pengpeng Wang
  • Publication number: 20190226920
    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.
    Type: Application
    Filed: June 12, 2018
    Publication date: July 25, 2019
    Inventors: Lijun Zhao, Yingming Liu, Haisheng Wang, ChihJen Cheng, Pengpeng Wang, Chunwei Wu
  • Publication number: 20190220129
    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.
    Type: Application
    Filed: August 21, 2018
    Publication date: July 18, 2019
    Inventors: ChihJen Cheng, Haisheng Wang, Yuzhen Guo, Xiaoliang Ding, Yingming Liu, Pengpeng Wang, Xueyou Cao
  • Publication number: 20190220645
    Abstract: A fingerprint recognition apparatus is provided. The fingerprint recognition apparatus includes m driving signal lines, n reading signal lines, and m*n photosensitive devices. Each of a plurality of electrode signal controllers is connected to at least two of the m driving signal lines, the plurality of electrode signal controllers are configured to simultaneously input driving signals of different frequencies to each of the m driving signal lines connected to the plurality of electrode signal controllers, and a demodulator is connected to the n reading signal lines, and is configured to demodulate electrical signals of different frequencies transmitted on each of the n reading signal lines.
    Type: Application
    Filed: February 13, 2018
    Publication date: July 18, 2019
    Inventors: Xiaoliang DING, Xue DONG, Jing LV, Haisheng WANG, Chunwei WU, Yingming LIU, Wei LIU, Pengpeng WANG, Yanling HAN, Xueyou CAO, Ping ZHANG
  • Patent number: 10353505
    Abstract: An in-cell touch screen includes a pressure sensing structure. The pressure sensing structure includes a plurality of pressure sensitive electrodes arranged in an array and being independent from each other, each pressure sensitive electrode configured for generating a potential difference in response to a pressure caused by pressing; an input electrode electrically connected to the plurality of pressure sensitive electrodes for receiving a fixed potential in a pressure detection phase; and a plurality of output electrodes each electrically connected to a respective one of the plurality of pressure sensitive electrodes for outputting a signal indicative of a change in a potential of the respective pressure sensitive electrode with respect to the fixed potential in the pressure detection phase.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: July 16, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yingming Liu, Xue Dong, Hailin Xue, Haisheng Wang, Xiaochuan Chen, Xiaoliang Ding, Shengji Yang, Rui Xu, Changfeng Li, Wei Liu, Pengpeng Wang
  • Publication number: 20190213432
    Abstract: The disclosure discloses a noise detection circuit, a noise detection method, and a print recognition apparatus, where the noise detection circuit includes a differential amplifier, an analog-to-digital converter, a control circuit, and a first switch circuit; the control circuit is configured to control the first switch circuit to make the first input signal terminal connected with the reference signal terminal or grounded, and to make the second input signal terminal connected with the reference signal terminal or grounded, and when the first input signal terminal is connected with the reference signal terminal or grounded, and the second input signal terminal is connected with the reference signal terminal or grounded, to analyze the digital signal output by the analog-to-digital converter to determine a source of noise of the print recognition apparatus.
    Type: Application
    Filed: September 14, 2018
    Publication date: July 11, 2019
    Inventors: Pengpeng WANG, Haisheng WANG, Xiaoliang DING, Chih-Jen CHENG, Yanling HAN, Wei LIU, Xueyou CAO, Ping ZHANG
  • Publication number: 20190212856
    Abstract: Embodiments of the present disclosure provide a touch display panel, a method of driving the touch display panel, and a display apparatus with the touch display panel. The touch display panel includes: a common electrode layer disposed in an array substrate or a color filter substrate, configured for displaying an image, and including: a plurality of first strip-shaped electrodes each serving as a first touch feedback electrode and one of a touch drive electrode and a touch sense electrode; and a plurality of second strip-shaped electrodes crossing the first strip-shaped electrodes, and each serving as a second touch feedback electrode; and a plurality of third strip-shaped electrodes disposed in the color filter substrate and each serving as the other of the touch drive electrode and the touch sense electrode. An extending direction of the third strip-shaped electrodes crosses an extending direction of the first strip-shaped electrodes.
    Type: Application
    Filed: March 16, 2018
    Publication date: July 11, 2019
    Inventors: Xiaoliang Ding, Haisheng Wang, ChunWei Wu, Yingming Liu, Wei Liu, Pengpeng Wang, Yanling Han, Xueyou Cao