Patents by Inventor Zhi Zhang

Zhi Zhang 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: 20190116672
    Abstract: The disclosure discloses a display panel, a detection method thereof, a flexible printed circuit, and a display device. The flexible printed circuit includes a second bonding area, a plurality of contact pins and at least one test pin group are arranged in the second bonding area; the contact pins are configured to be bonded respectively with corresponding contact pads in the first bonding area; the test pin group is configured to be bonded with a corresponding test pad group in the first bonding area; the test pin group includes test pins; and the test pin group is configured so that after bonding, bonding states of the contact pins with the contact pads are determined by detecting conducting or non-conducting state between the test pins and the corresponding test pads.
    Type: Application
    Filed: July 16, 2018
    Publication date: April 18, 2019
    Inventors: Xuemei ZHAO, Hu LI, Jian HE, Zhi ZHANG
  • Publication number: 20190096307
    Abstract: The present application discloses a shift register unit and a method for driving the same, a gate driving circuit, an array substrate, and a display apparatus. The shift register unit includes an input sub-circuit; a first output sub-circuit configured to output a first output signal to an output signal terminal, so that the output signal terminal outputs a gate driving signal having a first valid level; and a second output sub-circuit configured to output a second output signal to the output signal terminal, so that the output signal terminal outputs a gate driving signal having a second valid level, wherein an absolute value of the second valid signal is greater than an absolute value of the first valid level.
    Type: Application
    Filed: September 20, 2018
    Publication date: March 28, 2019
    Inventors: Xuebo Liang, Zhi Zhang, Xiuzhu Tang, Qian Qian, Taoliang Tang
  • Publication number: 20190066613
    Abstract: The present disclosure relates to a discharging circuit and a driving method thereof, and a display device. The discharging circuit of the present disclosure includes a control circuit, a time delay circuit, a first discharging circuit and a second discharging circuit. The control circuit is configured to control potential of a control signal output terminal of the control circuit. The time delay circuit is configured to delay a switched-on time of the second discharging circuit. The first discharging circuit is configured to pull down a potential of a data signal terminal to a potential of a common voltage terminal, under control of a control signal output from the control circuit. The second discharging circuit is configured to release the potential of the common voltage terminal and the potential of the data signal terminal under the control of the time delay circuit.
    Type: Application
    Filed: October 17, 2017
    Publication date: February 28, 2019
    Inventors: Shuai CHEN, Zhi ZHANG, Cheng ZUO, Heecheol KIM, Taeyup MIN, Zhihui WANG, Xiaojun ZUO, Xing DONG, Wangjing BAI, Kangpeng DANG
  • Patent number: 10215465
    Abstract: The present application provides a low load operating system for a refrigeration system having a compressor, a condenser, an expansion valve, and an evaporator. The low load operating system may include a hot gas bypass line extending from a discharge side of the compressor to a suction side of the compressor and a desuperheat line extending from upstream of the expansion valve to the suction side of the compressor.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: February 26, 2019
    Assignee: Heatcraft Refrigeration Products LLC
    Inventors: Zhi Zhang, Yang Xie, Hongxiang Chen
  • Publication number: 20190057668
    Abstract: The disclosure discloses a display drive circuit, a display device, and a method for driving the same, where the display drive circuit includes a control circuit arranged between a power supply management circuit and a level conversion circuit, and the control circuit is configured to boost a standard gate turn-on voltage signal provided by the power supply management circuit, and to generate and then output a higher gate turn-on voltage signal to the level conversion circuit, upon determining that an ambient temperature is below a set temperature, and/or an output of a gate drive circuit of a display panel is abnormal, so that the level conversion circuit generates and then outputs a corresponding gate drive signal at higher voltage.
    Type: Application
    Filed: June 12, 2018
    Publication date: February 21, 2019
    Inventors: Lijun XIONG, Zhi ZHANG, Heecheol KIM, Xiuzhu TANG, Shuai CHEN, Jingpeng ZHAO, Xing DONG, Xiaolong LIU, Gang CHEN, Yanli ZHAO
  • Publication number: 20190056610
    Abstract: The disclosure discloses an array substrate, a liquid crystal panel, and a process of fabricating the array substrate. The array substrate includes an orientation film, an upper electrode, a lower electrode, and an intermediate electrode located between the upper electrode and the lower electrode, wherein the intermediate electrode is configured to have drive voltage applied thereto when there is zero relative voltage between the upper electrode and the lower electrode, so that an electric field is generated between the intermediate electrode and the lower electrode, and a direction of the electric field is parallel to an orientation direction of the orientation film.
    Type: Application
    Filed: June 8, 2018
    Publication date: February 21, 2019
    Inventors: Yanli ZHAO, Xiaoji LI, Zhi ZHANG, He SUN, Xing DONG, Lijun XIONG, Tae Yup MIN
  • Publication number: 20190051256
    Abstract: A display driving circuit, a driving method thereof, and a display device are provided. The display driving circuit includes: a timing controller which is configured to acquire grayscale data of subpixels in a frame of display image row by row and output the grayscale data to the grayscale controller; a grayscale controller which is configured to receive grayscale data of each subpixel in each row of subpixels, and control at least a part of the plurality of reference grayscale voltage output terminals in the grayscale controller to output reference grayscale voltages according to the grayscale data of each subpixel in each row of subpixels; a source IC which is configured to generate a grayscale voltage according to the received reference grayscale voltages and input the grayscale voltage as a data voltage to a data line.
    Type: Application
    Filed: July 30, 2018
    Publication date: February 14, 2019
    Inventors: Zhenguo TIAN, Jingpeng ZHAO, Taoliang TANG, Zhi ZHANG, Heecheol KIM, Taeyup MIN
  • Patent number: 10187391
    Abstract: Described herein is a framework for providing and securing data access by external users. In accordance with one aspect of the framework, an external schema is generated to pair with an existing company schema in a database. The company schema may own data stored in the database. One or more access-control views that expose one or more subsets of the data may further be generated. The external schema may be granted access to the one or more access-control views. Synonyms may be created to rename access-control views, so that the synonyms share common names with corresponding database objects accessible via the company schema. External users may then access the data visible to them via the synonyms that are used to alias the access-control views.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: January 22, 2019
    Assignee: SAP SE
    Inventors: Yonghong Mao, Zhi Zhang, Neil Jayesh Patel, Edward Lu, Jessica Yang
  • Publication number: 20190016051
    Abstract: A semipermeable element for the penetration of 3D printing curing inhibitors. The semipermeable element has a pore density of 107-1011/cm2, and/or the pore diameter of 0.01 ?m-5 ?m. A usage of a semipermeable element, and manufacturing method thereof as well as a 3D printing apparatus. The semipermeable element has good permeability to the curing inhibitor, and simply introducing air can achieve the thickness of inhibited curing layer as required by the continuous manufacturing of the three-dimensional objects.
    Type: Application
    Filed: January 13, 2016
    Publication date: January 17, 2019
    Applicant: FUJIAN INSTITUTE OF RESEARCH ON THE STRUCTURE OF MATTER, CHINESE ACADEMY OF SCIENCE
    Inventors: Wenxiong LIN, Jianhong HUANG, Kaiming RUAN, Huagang LIU, Haizhou HUANG, Hongchun WU, Zhi ZHANG, Jiming CHEN, Jinhui LI, Wen WENG, Yan GE, Zixiong LIN
  • Publication number: 20190009460
    Abstract: A 3D printing apparatus with a radiation source, a workbench, and a liquid tank, wherein a workbench for supporting a three-dimensional object being constructed, and a liquid tank for containing a polymerizable liquid for constructing a three-dimensional object. The apparatus also includes a cover plate which is located in the liquid tank or on the top of the liquid tank; the radiation source irradiates from above the cover plate. The cover plate is an element transparent to the radiation source; and the lower surface of the cover plate is a covering surface which remains in contact with the polymerizable liquid during the printing process.
    Type: Application
    Filed: January 13, 2016
    Publication date: January 10, 2019
    Applicant: FUJIAN INSTITUTE OF RESEARCH ON THE STRUCTURE OF MATTER, CHINESE ACADEMY OF SCIENCE
    Inventors: Wenxiong LIN, Huagang LIU, Jianhong HUANG, Zhi ZHANG, Zixiong LIN, Kaiming RUAN, Yan GE, Haizhou HUANG, Hongchun WU, Jinhui LI, Wen WENG, Jinming CHEN
  • Publication number: 20180375643
    Abstract: A processor using an internal memory to store constants Kt required in a secure hash algorithm (SHA). The latency due to loading the constants Kt from an external memory, therefore, is eliminated. The processor further introduces an instruction set architecture that provides one instruction for the processor to read the constants Kt from the internal memory and perform a particular process on the read constants Kt. Thus, the SHA works efficiently.
    Type: Application
    Filed: August 1, 2017
    Publication date: December 27, 2018
    Inventor: Zhi ZHANG
  • Publication number: 20180366073
    Abstract: It is provided a grayscale voltage debugging method for debugging a display device including a white subpixel, including a first step of, in a state where the white subpixel is disenabled and subpixels in other colors are enabled, adjusting a respective to-be-adjusted grayscale voltage applied to each of the subpixels in other colors, so that a first actually-measured Gamma curve corresponding to the respective adjusted grayscale voltage is located within an acceptable range of a standard Gamma curve, and a second step of, in a state where the white subpixel and the subpixels in other colors are all enabled, acquiring a second actually-measured Gamma curve and in the case that the second actually-measured Gamma curve is not located within the acceptable range, changing the respective adjusted grayscale voltage to obtain a new respective to-be-adjusted grayscale voltage, and returning to the first step.
    Type: Application
    Filed: September 14, 2016
    Publication date: December 20, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai CHEN, Zhi ZHANG, Lijun XIAO, Shaoru LI, Keke GU, Zhihui WANG, Taoliang TANG, Qian QIAN, Zhijian QI, Yi DAN, Lisheng LIANG
  • Patent number: 10134353
    Abstract: The present application discloses a display panel having a plurality of gate lines and a gate driving circuit for driving the plurality of gate lines, the gate driving circuit including a plurality of first cascaded shift register units and a plurality of second cascaded shift register units for applying gate scanning signals to gate lines connected thereto.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: November 20, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai Chen, Xu Lu, Lijun Xiao, Zhi Zhang, Daoping Yu, Keke Gu, Siqing Fu, Zhijian Qi, Wenlong Feng, Guanyu Zhou, Mengjie Wang
  • Publication number: 20180329546
    Abstract: A touch display panel, a driving method thereof, and a touch display device are provided. The touch display panel includes a timing controller, a first substrate and a second substrate arranged opposite to the first substrate. The first substrate includes a base substrate and common electrodes arranged on the base substrate. The first substrate further includes a touch switching unit connected to the timing controller via a touch control line and configured to control, within a touch time period, the common electrodes to receive a touch driving signal under the control of a touch control signal from the touch control line, and a display switching unit connected to the timing controller via a display control line and configured to control, within a display time period, the common electrodes to receive a common electrode voltage signal under the control of a display control signal from the display control line.
    Type: Application
    Filed: January 18, 2016
    Publication date: November 15, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Qian QIAN, Heecheol KIM, Zhi ZHANG, Zhihui WANG, Shuai CHEN, Taoliang TANG, Lei CHEN, Gang CHEN
  • Publication number: 20180300033
    Abstract: The present disclosure provides a display method and a display device. There is provided a display method for a display, wherein the display method comprises the following steps: detecting movement data of the display by a motion detection mechanism, wherein the movement data comprises at least a movement direction of the display; and changing a region of an object currently displayed by the display which is displayed on a display screen according to the movement data of the display.
    Type: Application
    Filed: March 30, 2017
    Publication date: October 18, 2018
    Inventors: Shuai CHEN, Zhi ZHANG, Shaoru LI, Hui Che LIN, Zhihui WANG, Siqing FU, Lisheng LIANG, Yuanbo ZHANG, Xin LIU
  • Publication number: 20180302887
    Abstract: Method of scrambling signals, transmission point device, and user equipment using the method are provided. The method includes: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, wherein the blind detection for the UE is enabled and the signaling overhead is reduced.
    Type: Application
    Filed: June 15, 2018
    Publication date: October 18, 2018
    Inventors: Zhi Zhang, Ming Xu, Masayuki Hoshino, Daichi Imamura, Akihiko Nishio
  • Publication number: 20180240425
    Abstract: The present disclosure provides a display drive circuit for driving a display panel having a plurality of pixels. The display drive circuit comprises a stepping unit, configured to shape a gate voltage signal to compensate for pixel-to-pixel charging variations to thereby reduce luminance variations on the display panel. The display drive circuit can further include a time sequence control unit and a modulation unit. The time sequence control unit can be coupled to the modulation unit, and can be configured to generate a first control signal; and the modulation unit can be configured to utilize the first control signal to modulate a preset signal to thereby generate a second control signal; and the stepping unit can be coupled to the modulation unit, and can be configured to shape the gate voltage signal based on the second control signal prior to outputting the gate voltage signal.
    Type: Application
    Filed: September 12, 2016
    Publication date: August 23, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai CHEN, Zhi ZHANG, Siqing FU, Lisheng LIANG, Xianyong GAO, Jianghong WEN, Qian QIAN, Xiuzhu TANG, Zhihui WANG, Lei CHEN, Taoliang TANG, Gang CHEN
  • Patent number: 10045391
    Abstract: Methods, corresponding apparatuses, and computer program products for ProSe communication are provided. A method comprises sending, from a first base station, a first configuration message to at least one of two user equipments which are performing ProSe communication over a first locally routed path via the first base station such that the two user equipments perform the ProSe communication over a second locally routed path via a second base station. The method also comprises sending, from the first base station, a second configuration message to the second base station such that the second base station is configured to support the two user equipments to perform the ProSe communication over the second locally routed path via the second base station.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: August 7, 2018
    Assignee: Nokia Technologies Oy
    Inventors: Yixue Lei, Zhi Zhang
  • Patent number: 10037737
    Abstract: The present disclosure provides a common voltage adjustment circuit, a common voltage adjustment method, a display panel and a display device. The common voltage adjustment circuit includes: a filter unit; and a control unit configured to, at a compensation stage, enable a common voltage feedback line to be electrically disconnected from a second input end of a common voltage negative-feedback amplification unit and enable a reference common voltage output end to be electrically connected to the second input end of the common voltage negative-feedback amplification unit through the filter unit, and at a non-compensation stage, enable the common voltage feedback line to be electrically connected to the second input end of the common voltage negative-feedback amplification unit and enable the reference common voltage output end to be electrically disconnected from the second input end of the common voltage negative-feedback amplification unit.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: July 31, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai Chen, Zhi Zhang, Lijun Xiao, Yuanbo Zhang
  • Publication number: 20180205484
    Abstract: The present disclosure provides an orthogonal codes based code division multiplexing method of performing the code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices, the method comprising: changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; and multiplying the chips in respective rows of the second orthogonal matrix by the demodulation reference signals in corresponding layers of resource blocks correspondingly in the time direction to obtain code division multiplexing signals. The technical scheme of the present disclosure can improve the power jitter situation of downlink signals on the time, thereby the usage efficiency of the power amplifier at the base station side can be improved.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 19, 2018
    Inventors: Zhi Zhang, Ming Xu, Masayuki Hoshino, Seigo Nakao, Daichi Imamura