Patents by Inventor Zhichong Wang

Zhichong 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: 20190108809
    Abstract: A shift register, a gate drive circuit, a display apparatus and a driving method of the shift register are provided. The shift register includes an input subcircuit, a first and a second output subcircuits, a trigger signal input terminal, a first and a second signal output terminals, a first and a second clock terminals and a pull-up node, a control terminal and an output terminal of the input subcircuit are electrically coupled to the trigger signal input terminal and the pull-up node, respectively, for providing a valid signal received by the control terminal of the input subcircuit to the pull-up node. The shift register is provided with the first and second output subcircuits which share the same input subcircuit, greatly reducing the number of devices and thus greatly simplifying the structure of the cascaded shift registers and reducing the area of the whole display apparatus.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 11, 2019
    Inventors: Haoliang ZHENG, Seungwoo HAN, Guangliang SHANG, Xing YAO, Lijun YUAN, Zhichong WANG, Mingfu HAN, Yinglong HUANG
  • Patent number: 10235919
    Abstract: A GOA signal determining circuit and method thereof, gate driver circuit, and display device are provided. The GOA signal determining circuit is connected to an input end of a GOA unit, at least two clock signal ends of the GOA unit, and a control end of a reset unit of a PU node in the GOA unit. The GOA signal determining circuit detects a signal of the input end of the GOA unit and a signal of the at least two clock signal ends of the GOA unit, and outputs a control signal to the reset unit of the PU node to control the reset unit to output a reset signal to the PU node to turn off an output transistor of the GOA unit, upon determining both of the signal of the input end and the signal of the at least two clock signal ends are abnormal.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: March 19, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guangliang Shang, Xing Yao, Mingfu Han, Seung-Woo Han, Yun-Sik Im, Jing Lv, Yinglong Huang, Jung-Mok Jun, Xue Dong, Haoliang Zheng, Lijun Yuan, Zhichong Wang, Ji Ha Kim
  • Publication number: 20190057638
    Abstract: A shift-buffer circuit, a gate driving circuit, a display panel, a display device, and a driving method. The shift-buffer circuit includes: a shift register and a plurality of buffers connected with the shift register. The shift register includes a shift output terminal; the shift register is configured to output a shift output signal from the shift output terminal, in response to a shift clock signal; each of the buffers includes a buffer input terminal and a buffer output terminal, the buffer input terminal being connected with the shift output terminal; each of the buffers is configured to output a buffer output signal from the buffer output terminal, in response to a buffer clock signal.
    Type: Application
    Filed: October 17, 2017
    Publication date: February 21, 2019
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiha KIM, Seung Woo HAN, Guangliang SHANG, Xing YAO, Haoliang ZHENG, Mingfu HAN, Zhichong WANG, Lijun YUAN, Yun Sik IM, Jing LV, Yinglong HUANG, Xue DONG
  • Patent number: 10210835
    Abstract: The present invention discloses a gate driver on array circuit and a driving method thereof, and a display device. The gate driver on array circuit comprises a first gate driver on array sub-circuit and a second gate driver on array sub-circuit; the first gate driver on array sub-circuit is configured to drive in a first working state which is a state in which no defect occurs in the first gate driver on array sub-circuit; the second gate driver on array sub-circuit is configured to drive in a second working state which is a state in which a defect occurs in the first gate driver on array sub-circuit. The present invention improves the yield rate of the gate driver on array circuit.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: February 19, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mingfu Han, Guangliang Shang, Seungwoo Han, Zhihe Jin, Xing Yao, Haoliang Zheng, Lijun Yuan, Zhichong Wang
  • Publication number: 20190027079
    Abstract: A GOA signal determining circuit and method thereof, gate driver circuit, and display device are provided. The GOA signal determining circuit is connected to an input end of a GOA unit, at least two clock signal ends of the GOA unit, and a control end of a reset unit of a PU node in the GOA unit. The GOA signal determining circuit detects a signal of the input end of the GOA unit and a signal of the at least two clock signal ends of the GOA unit, and outputs a control signal to the reset unit of the PU node to control the reset unit to output a reset signal to the PU node to turn off an output transistor of the GOA unit, upon determining both of the signal of the input end and the signal of the at least two clock signal ends are abnormal.
    Type: Application
    Filed: May 3, 2017
    Publication date: January 24, 2019
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guangliang SHANG, Xing YAO, Mingfu HAN, Seung-Woo HAN, Yun-Sik IM, Jing LV, Yinglong HUANG, Jung-Mok JUN, Xue DONG, Haoliang ZHENG, Lijun YUAN, Zhichong WANG, Ji Ha KIM
  • Patent number: 10115335
    Abstract: The present disclosure relates to a shift register unit and driving method thereof, a gate driving circuit and a display device. The shift register unit comprises: an input module for controlling a level of a first node based on a scan pulse, an output module for controlling a scan pulse output based on the level of the first node, a reset module for resetting the first node and the scan pulse output, and a control module for generating a reset trigger signal, wherein the reset module further resets the first node based on the reset trigger signal. The shift register units can be cascaded to form a gate driving circuit to realize output of multiple scan pulses. By integrating such a gate driving circuit on the array substrate, area of the bezel region of the array substrate can be reduced, thereby facilitating bezel narrowing of a display device.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: October 30, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haoliang Zheng, Seungwoo Han, Guangliang Shang, Hyunsic Choi, Mingfu Han, Xing Yao, Zhichong Wang, Lijun Yuan
  • Publication number: 20180261177
    Abstract: The present disclosure discloses a gate drive circuit, a display panel and a driving method for the gate drive circuit. The gate drive circuit includes a plurality of shift register units connected in cascade; and further includes: buffer units which are in a one-to-one correspondence with shift register units at all levels, and touch control switch units which are in a one-to-one correspondence with shift register units at even levels. Each buffer unit in the gate drive circuit can increase the holding time of the effective pulse signal output by the shift register unit at a corresponding level by one line before resetting, and the effective pulse signal output by a buffer unit at an even level under the control of a touch control unit and the effective pulse signal output by a buffer unit at an adjacent previous odd level are reset at the same time.
    Type: Application
    Filed: October 27, 2017
    Publication date: September 13, 2018
    Inventors: Mingfu HAN, Xing YAO, Guangliang SHANG, Haoliang ZHENG, Seung-Woo HAN, Jiha KIM, Lijun YUAN, Zhichong WANG
  • Publication number: 20180197455
    Abstract: The embodiments of the present disclosure provide a partition-based gate driving method and apparatus and a gate driving unit, and relates to the field of display technology. In the embodiments of the present disclosure, the partition-based gate driving method comprises: generating a control signal according to an acquired human eye observation partition; generating a second clock signal or a third clock signal according to the control signal; and controlling a second output signal according to the second clock signal or controlling a third output signal according to the third clock signal, thereby controlling the display area to be displayed by partitions.
    Type: Application
    Filed: August 22, 2017
    Publication date: July 12, 2018
    Inventors: Mingfu Han, Guangliang Shang, Han-Seung- Woo, Xing Yao, Zhihe Jin, Haoliang Zheng, Lijun Yuan, Zhichong Wang
  • Publication number: 20180188562
    Abstract: The present application discloses a reflective display panel, a driving method thereof, a control method of a pixel unit and a reflective display device. The reflective display panel comprises: a base substrate, a reflective layer, first and second electrode layers, wherein the first electrode layer is on a side of the reflective layer distal to the base substrate, the second electrode layer is on a side of the first electrode layer distal to the base substrate and insulated from the first electrode layer, materials of the first and second electrode layers are each an electro-optic material, and orthogonal projections of the second and first electrode layers on the base substrate have overlapping areas corresponding to the pixel units.
    Type: Application
    Filed: October 26, 2017
    Publication date: July 5, 2018
    Inventors: Zhihe JIN, Seungwoo HAN, Mingfu HAN, Xing YAO, Guangliang SHANG, Zhichong WANG, Lijun YUAN, Haoliang ZHENG, Yunsik IM
  • Publication number: 20180190180
    Abstract: Embodiments of the present disclosure provide a shift register unit, a driving method thereof, a gate driving circuit, and a display device. The shift register unit comprises an input circuit, a reset circuit, a plurality of output circuits, a plurality of pull-down circuits and a plurality of pull-down control circuits. During a first time period, all of signals output by the plurality of output circuits are valid. During a second time period, at least one of the signals output by the plurality of output circuits is invalid, wherein the second time period comprises a first sub-period and a second sub-period, and the state of at least one of the signals output by the plurality of output circuits during the first sub-period is opposite to the state thereof during the second sub-period. The shift register unit may enable transistors in a pixel circuit to switch between ON and OFF states, so as to extend lifetime of the transistors.
    Type: Application
    Filed: August 18, 2017
    Publication date: July 5, 2018
    Inventors: Guangliang Shang, Mingfu Han, Haoliang Zheng, Han-Seung- Woo, Im-Yun- Sik, Jing Lv, Yinglong Huang, Jun-Jung- Mok, Xue Dong, Zhichong Wang, Xing Yao, Lijun Yuan, Zhihe Jin
  • Publication number: 20180108289
    Abstract: The present disclosure relates to a shift register unit and driving method thereof, a gate driving circuit and a display device. The shift register unit comprises: an input module for controlling a level of a first node based on a scan pulse, an output module for controlling a scan pulse output based on the level of the first node, a reset module for resetting the first node and the scan pulse output, and a control module for generating a reset trigger signal, wherein the reset module further resets the first node based on the reset trigger signal. The shift register units can be cascaded to form a gate driving circuit to realize output of multiple scan pulses. By integrating such a gate driving circuit on the array substrate, area of the bezel region of the array substrate can be reduced, thereby facilitating bezel narrowing of a display device.
    Type: Application
    Filed: May 19, 2016
    Publication date: April 19, 2018
    Inventors: Haoliang ZHENG, Seungwoo HAN, Guangliang SHANG, Hyunsic CHOI, Mingfu HAN, Xing YAO, Zhichong WANG, Lijun YUAN
  • Publication number: 20180025695
    Abstract: The present invention discloses a gate driver on array circuit and a driving method thereof, and a display device. The gate driver on array circuit comprises a first gate driver on array sub-circuit and a second gate driver on array sub-circuit; the first gate driver on array sub-circuit is configured to drive in a first working state which is a state in which no defect occurs in the first gate driver on array sub-circuit; the second gate driver on array sub-circuit is configured to drive in a second working state which is a state in which a defect occurs in the first gate driver on array sub-circuit. The present invention improves the yield rate of the gate driver on array circuit.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 25, 2018
    Inventors: Mingfu HAN, Guangliang SHANG, Seungwoo HAN, Zhihe JIN, Xing YAO, Haoliang ZHENG, Lijun YUAN, Zhichong WANG
  • Publication number: 20110045566
    Abstract: A method for preparing the decellularized matrix using the phospholipase includes the following steps: pretreating the standby tissue and organ; putting the standby tissue and organ into the solution containing the phospholipase; preparing the decellularized matrix in the control condition; washing the prepared decellularized matrix.
    Type: Application
    Filed: April 18, 2008
    Publication date: February 24, 2011
    Inventors: Zhichong Wang, Dong Chen, Zheng Wu