Patents by Inventor Zhaohui MENG

Zhaohui MENG 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).

  • Patent number: 11126279
    Abstract: A stylus pen that includes a tip electrode, a power supply circuit, a signal detector, and a drive circuit where an output signal is transmitted to and an input signal is received from a touch panel via the tip electrode. The power supply circuit of the stylus pen selectively supplies a first supply voltage or a second supply voltage. The signal detector of the stylus pen detects an enable signal from the input signal and the signal detector of the stylus pen controls the power supply circuit to supply the first supply voltage in response to presence of the enable signal. The drive circuit operates at the first supply voltage to generate the output signal.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: September 21, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhaohui Meng, Wei Sun, Wenchao Han, Xinle Wang, Yilin Feng, Guangquan Wang
  • Patent number: 11114053
    Abstract: An anti-peeping circuit for a display panel, a driving method thereof, and a display device. The anti-peeping circuit includes a waveform generator. The waveform generator is connected to an anti-peeping electrode of the display panel, and the waveform generator is configured to generate an anti-peeping signal and output the anti-peeping signal to the anti-peeping electrode of the display panel.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: September 7, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinle Wang, Wei Sun, Wenchao Han, Zhaohui Meng, Lianghao Zhang, Yilin Feng, Xiaoyang Shen
  • Publication number: 20210232285
    Abstract: A driving method, a driving circuit and a touch-display apparatus are provided. The driving method includes providing a gate driving signal to a gate line, providing a pixel voltage to a data line, and providing a common electrode driving signal to a common electrode, wherein a pixel display operation is performed based on the gate driving signal, the pixel voltage, and the common electrode driving signal, and simultaneously, a touch detection operation is performed based on the common electrode driving signal. The driving method realizes the effect of simultaneously performing a pixel display operation and a touch detection operation, and solves the problem that the pixel display operation of the touch-display 0 apparatus is affected in the touch detection stage.
    Type: Application
    Filed: April 30, 2019
    Publication date: July 29, 2021
    Inventors: Yilin FENG, Wei SUN, Wenchao HAN, Zhaohui MENG, Xinle WANG, Yan YANG, Lianghao ZHANG, Xiaoyang SHEN
  • Publication number: 20210225304
    Abstract: The present disclosure provides a pixel structure, a method of driving the same and a display device. The pixel structure includes gate lines, data lines, and a plurality of subpixels arranged in an array form. Subpixels in each row correspond to two gate lines. Each data line corresponds to the subpixels in two adjacent columns, and each data line is arranged between the two adjacent columns of subpixels. Among the subpixels in each row, three adjacent subpixels are in different colors and forms a complete pixel unit. Among the subpixels in each column, three adjacent subpixels are in different colors and forms the complete pixel unit. Among the subpixels in two adjacent columns, the subpixels in two adjacent rows form two complete pixel units each including three subpixels, and two of the three subpixels are shared by the two pixel unit.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 22, 2021
    Applicants: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jingchao YUAN, Zhaohui MENG, Wenchao HAN, Wei SUN, Xue DONG, Ming CHEN
  • Patent number: 11069319
    Abstract: The present disclosure provides a video playing method, device and storage medium. The method includes: obtaining a target video which comprises a plurality of video frames arranged in sequence, and sending sequentially the plurality of video frames to a display module, by a graphics processing unit; for each video frame, receiving and playing the video frame for a target duration from a start moment of receiving the video frame, by the display module; wherein target durations for which the display module plays at least two video frames in the target video are not equal. The technical solutions provided in the embodiments of the present disclosure can improve the refresh rate of a video.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: July 20, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhaohui Meng, Wei Sun, Wenchao Han, Lin Cong
  • Publication number: 20210074233
    Abstract: An anti-peeping circuit for a display panel, a driving method thereof, and a display device. The anti-peeping circuit includes a waveform generator. The waveform generator is connected to an anti-peeping electrode of the display panel, and the waveform generator is configured to generate an anti-peeping signal and output the anti-peeping signal to the anti-peeping electrode of the display panel.
    Type: Application
    Filed: January 4, 2019
    Publication date: March 11, 2021
    Inventors: Xinle WANG, Wei SUN, Wenchao HAN, Zhaohui MENG, Lianghao ZHANG, Yilin FENG, Xiaoyang SHEN
  • Publication number: 20200305735
    Abstract: Embodiments of a system and method for heart rate monitoring are generally described herein. A method may include receiving, at a device, a spectrogram including a plurality of bins of represented frequencies corresponding to potential heart rate measurements, selecting a bin of frequencies from the plurality of bins of represented frequencies with an average power that exceeds average powers of remaining bins of frequencies of the plurality of bins of represented frequencies, determining whether a frequency of the bin of frequencies represents a valid heart rate based on the average power and a past valid heart rate, and in response to determining that the frequency represents a valid heart rate, outputting a heart rate corresponding to the frequency.
    Type: Application
    Filed: December 23, 2015
    Publication date: October 1, 2020
    Inventors: Tingqian Li, Zhaohui Meng, Jinkui Ren
  • Publication number: 20200234671
    Abstract: The present disclosure provides a video playing method, device and storage medium. The method includes: obtaining a target video which comprises a plurality of video frames arranged in sequence, and sending sequentially the plurality of video frames to a display module, by a graphics processing unit; for each video frame, receiving and playing the video frame for a target duration from a start moment of receiving the video frame, by the display module; wherein target durations for which the display module plays at least two video frames in the target video are not equal. The technical solutions provided in the embodiments of the present disclosure can improve the refresh rate of a video.
    Type: Application
    Filed: June 18, 2019
    Publication date: July 23, 2020
    Inventors: Zhaohui Meng, Wei Sun, Wenchao Han, Lin Cong
  • Publication number: 20200226986
    Abstract: A backlight driving method and device of a display panel, and a display panel are provided. The backlight driving method of a display panel includes generating a synchronous drive frame and performing black frame insertion control according to a synchronous drive frame, the synchronous drive frame includes a first time region and a second time region, in the synchronous drive frame, a PWM light-adjusting signal is not output in the first time region and the PWM light-adjusting signal is output in the second time region, the first time region corresponds to line scan time, and the second time region corresponds to liquid crystal stabilization time.
    Type: Application
    Filed: November 21, 2017
    Publication date: July 16, 2020
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhaohui MENG, Hao ZHANG, Dong CHEN
  • Publication number: 20200125188
    Abstract: A stylus pen that includes a tip electrode, a power supply circuit, a signal detector, and a drive circuit where an output signal is transmitted to and an input signal is received from a touch panel via the tip electrode. The power supply circuit of the stylus pen selectively supplies a first supply voltage or a second supply voltage. The signal detector of the stylus pen detects an enable signal from the input signal and the signal detector of the stylus pen controls the power supply circuit to supply the first supply voltage in response to presence of the enable signal. The drive circuit operates at the first supply voltage to generate the output signal.
    Type: Application
    Filed: October 10, 2019
    Publication date: April 23, 2020
    Inventors: Zhaohui MENG, Wei SUN, Wenchao HAN, Xinle WANG, Yilin FENG, Guangquan WANG
  • Patent number: 10553153
    Abstract: A method, a circuit and a display device for driving an organic light emitting diode, wherein a driving transistor (DTFT) for driving a display element is turned off by jumping one or more of a reference voltage input (Vref), a reset voltage input (Vinit) and a data signal input (Vdata) before beginning to output an EL high level (ELVDD) of a pixel compensation circuit and after beginning to output an EL low level (ELVSS), to overcome the splash screen phenomenon during power-up and direct current-direct current driving failure.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: February 4, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Liu, Chenggeng Zhang, Zhaohui Meng, Hongwei Tian, Juanjuan Bai, Meng Shao, Wen Sun, Can Zheng, Hualing Yang
  • Patent number: 10497315
    Abstract: The present disclosure provides a brightness control method, a brightness control device, an AMOLED panel and an electronic device. The brightness control method includes steps of: determining a brightness value L to be displayed by the AMOLED panel in accordance with a received brightness adjustment instruction; calculating an actual brightness value L? to be outputted by the electroluminescent element corresponding to the brightness value L in accordance with a predetermined brightness relationship, the actual brightness value L? corresponding to one grayscale; and controlling a data output unit to output a voltage signal corresponding to the actual brightness value L?.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: December 3, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhaohui Meng, Dong Chen, Xue Dong
  • Patent number: 10492253
    Abstract: The present disclosure relates to a backlight driving circuit, comprising: a voltage supply configured to supply a first driving voltage; and a voltage regulator configured to receive the first driving voltage supplied by the voltage supply, output the first driving voltage to a light emitting element when an ambient temperature of the light emitting element is lower than a preset threshold, and output a second driving voltage less than the first driving voltage to the light emitting element when the ambient temperature of the light emitting element is higher than the preset threshold.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: November 26, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zhaohui Meng
  • Patent number: 10386873
    Abstract: Provided are a power supply voltage control circuit and a method thereof, a driver integrated circuit, and a display device.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: August 20, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Boya Zhang, Zhaohui Meng, Chenggeng Zhang, Lintao Zhang
  • Patent number: 10296133
    Abstract: The present disclosure discloses a touch screen and a touch positioning method thereof, and a display device. The touch screen comprises: a plurality of mutually insulated fan-shaped first touch sensing electrodes and a plurality of mutually insulated and non-overlapped second touch sensing electrodes mutually insulated from the first touch sensing electrodes. The fan-shaped first touch sensing electrodes are arranged in a circle, and each of the second touch sensing electrodes is shaped like a non-closed ring concentrically arranged with the circle.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: May 21, 2019
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventor: Zhaohui Meng
  • Patent number: 10139956
    Abstract: A control device for an electroluminescent touch-control display panel is described, in order to implement display and touch control on an In-cell electroluminescent touch-control display panel. The control device includes a display driving circuit board, a touch-control driving circuit board, a lighting circuit board and a switching circuit board. There is also described a touch screen including an electroluminescent touch-control display panel and the control device, and a display device including the touch screen.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: November 27, 2018
    Assignees: BOE Technology Group Co., Ltd., Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Shengji Yang, Boya Zhang, Xue Dong, Zhaohui Meng, Xiaochuan Chen, Haisheng Wang, Wei Sun, Dong Chen, Kwanggyun Jang
  • Publication number: 20180308429
    Abstract: The present disclosure provides a brightness control method, a brightness control device, an AMOLED panel and an electronic device. The brightness control method includes steps of: determining a brightness value L to be displayed by the AMOLED panel in accordance with a received brightness adjustment instruction; calculating an actual brightness value L? to be outputted by the electroluminescent element corresponding to the brightness value L in accordance with a predetermined brightness relationship, the actual brightness value L? corresponding to one grayscale; and controlling a data output unit to output a voltage signal corresponding to the actual brightness value L?.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 25, 2018
    Inventors: Zhaohui Meng, Dong Chen, Xue Dong
  • Patent number: 10068552
    Abstract: Disclosed is a display driving method, an upper machine, a lower machine and a display driving system. The method includes: acquiring, by a lower machine, an address for any of subpixels transmitted from an upper machine; looking up, by the lower machine, a gray scale data corresponding to the pointer address in a display Look-UP Table (LUT), wherein the LUT stores mapping relationships between respective pointer addresses and their corresponding gray scale data; performing, by the lower machine, a digital-analog conversion on the gray scale data to acquire a converted analog voltage; and outputting the analog voltage to the subpixel so as to drive the subpixel for displaying. The method can increase the transmission rate between the GPU and the display to a certain degree and reduce the power consumption thereof.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: September 4, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Zhaohui Meng, Guangjun Zhang, Zhifu Li, Xue Dong
  • Publication number: 20180239379
    Abstract: Provided are a power supply voltage control circuit and a method thereof, a driver integrated circuit, and a display device.
    Type: Application
    Filed: September 7, 2016
    Publication date: August 23, 2018
    Inventors: Boya ZHANG, Zhaohui MENG, Chenggeng ZHANG, Lintao ZHANG
  • Publication number: 20180107330
    Abstract: The present disclosure discloses a touch screen and a touch positioning method thereof, and a display device. The touch screen comprises: a plurality of mutually insulated fan-shaped first touch sensing electrodes and a plurality of mutually insulated and non-overlapped second touch sensing electrodes mutually insulated from the first touch sensing electrodes. The fan-shaped first touch sensing electrodes are arranged in a circle, and each of the second touch sensing electrodes is shaped like a non-closed ring concentrically arranged with the circle.
    Type: Application
    Filed: April 11, 2017
    Publication date: April 19, 2018
    Inventor: Zhaohui Meng