Patents by Inventor Hongjuan Liu

Hongjuan Liu 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: 20170269783
    Abstract: The present disclosure provides in some embodiments a pixel driving circuit, a display panel, a method for driving the display panel, and a display device. The pixel driving circuit includes a preset unit, a driving unit, a compensation unit, an energy storage unit, and a driving signal output unit.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 21, 2017
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shengji YANG, Xue DONG, Hailin XUE, Haisheng WANG, Xiaochuan CHEN, Hongjuan LIU, Tuo SUN, Lifei MA, Yingming LIU, Weijie ZHAO, Changfeng LI
  • Patent number: 9766761
    Abstract: An in-cell touch panel and a display device are disclosed. The in-cell touch panel includes a top substrate and a bottom substrate disposed oppositely to each other, a common electrode layer disposed on a side of the bottom substrate that faces the top substrate, and a touch sensing chip. The common electrode layer includes a plurality of independent self-capacitance electrodes. The touch sensing chip is configured to apply common electrode signals to self-capacitance electrodes in a display interval and determine touch positions by detecting capacitance value variation of self-capacitance electrodes in a touch interval. No additional process is added in the manufacturing process of the array substrate for the in-cell touch panel, thereby saving production costs and improving production efficiency.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: September 19, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lei Wang, Hailin Xue, Yanna Xue, Hongjuan Liu, Haisheng Wang
  • Publication number: 20170262125
    Abstract: A touch substrate, a display device and a driving method thereof, touch pressure driving electrodes and touch pressure sensing electrodes provided between the layer where the touch detecting electrodes is located and the substrate carrier are added within the touch substrate, and the touch pressure sensing electrodes and the touch pressure driving electrodes constitute a mutual-capacitance structure. When the touch substrate is pressed, the distance between the touch substrate and the underlying metal layer becomes small, causing that capacitance value of the mutual-capacitance structure becomes small. During the time period for detecting pressure, through applying the touch driving signal to the touch pressure driving electrodes to detect the change of signal amount of the touch pressure sensing electrodes caused by the pressure on the touch position, the change of the capacitance value of the mutual-capacitance structure can be determined to achieve the function of pressure sensing.
    Type: Application
    Filed: October 28, 2016
    Publication date: September 14, 2017
    Inventors: Xiaoliang Ding, Xue Dong, Haisheng Wang, Xiaochuan Chen, Yingming Liu, Shengji Yang, Weijie Zhao, Wei Liu, Changfeng Li, Pengpeng Wang, Tao Ren, Hongjuan Liu
  • Publication number: 20170262126
    Abstract: A display substrate, a method for manufacturing the display substrate and a display device are provided. The display substrate includes a basal substrate; a first electrode disposed on the basal substrate, the first electrode being deformable; a middle frame disposed on a side of the basal substrate departing from the first electrode; and a second electrode disposed between the middle frame and the basal substrate, forming a capacitor with the first electrode; the capacitance of the capacitor being variable based on deformation of the first electrode. According to the solution of the embodiments, the second electrode is arranged on the middle frame. The first electrode and the second electrode form a capacitor as a pressure sensor. Therefore, the pressure sensor can be integrated into the display substrate, and the space occupied by the pressure sensor in the display substrate is reduced.
    Type: Application
    Filed: October 13, 2016
    Publication date: September 14, 2017
    Inventors: Shengji YANG, Xue DONG, Hailin XUE, Xiaochuan CHEN, Haisheng WANG, Yingming LIU, Xiaoliang DING, Weijie ZHAO, Hongjuan LIU
  • Publication number: 20170249880
    Abstract: A display device and a method for driving the display device are disclosed. The display device comprises a black and white liquid crystal display panel, an organic light emitting display panel, and a control unit. The control unit is configured to control the organic light emitting display panel to emit light, at least divide a frame of display time into a first time period, a second time period, and a third time period, and to drive the first primary color sub-pixel to emit light only in the first time period, the second primary color sub-pixel to emit light only in the second time period, and the third primary color sub-pixel to emit light only in the third time period. According to embodiments of the present invention, there is no need to provide lenticular lenses or a slit grating to realize 3D display, thus reducing production cost.
    Type: Application
    Filed: November 21, 2016
    Publication date: August 31, 2017
    Inventors: Haisheng WANG, Xue DONG, Hailin XUE, Xiaochuan CHEN, Xiaoliang DING, Yingming LIU, Hongjuan LIU, Weijie ZHAO, Shengji YANG, Pengpeng WANG, Changfeng LI, Wei LIU
  • Patent number: 9746973
    Abstract: A method for driving an in-cell touch panel, a drive device and a display device are disclosed. The driving method includes: in a touch period, applying touch detection signals to self-capacitance electrodes, receiving feedback touch sensing signals, and determine a possible touch area provided with at least one self-capacitance electrode according to the variation of the touch sensing signals compared with the touch detection signals; subsequently, taking at least a portion of self-capacitance electrodes in the touch area as a first touch electrode, taking a self-capacitance electrode adjacent to the first touch electrode as a second touch electrode, and determining an accurate touch position according to the principle of the different amount of projection fields between the first touch electrodes and the second touch electrodes. The driving method can improve the touch detection accuracy.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: August 29, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Haisheng Wang, Xue Dong, Yingming Liu, Xiaoliang Ding, Shengji Yang, Weijie Zhao, Hongjuan Liu, Tao Ren
  • Publication number: 20170242533
    Abstract: The present application discloses a display apparatus including a liquid crystal display (LCD) panel having an array of a plurality of LCD pixel units; each LCD pixel unit including one or more LCD subpixels, at least some of the plurality of LCD pixel units having a semiconductor photodetector in at least one LCD subpixel for detecting biometric information; and an active matrix organic light emitting display (AMOLED) panel having an array of a plurality of AMOLED pixel units, each AMOLED pixel unit including one or more AMOLED subpixels, each of which having an organic light emitting diode. Each AMOLED subpixel corresponds to one or more LCD subpixel.
    Type: Application
    Filed: July 1, 2016
    Publication date: August 24, 2017
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yingming Liu, Xue Dong, Haisheng Wang, Xiaochuan Chen, Weijei Zhao, Changfeng Li, Xiaoliang Ding, Shengji Yang, Hongjuan Liu, Wei Liu, Lei Wang, Ming Yang, Rui Xu, Liguang Deng
  • Publication number: 20170206843
    Abstract: A display device and a driving method for the same are provided in embodiments of the present application. the display device includes: a LCD panel without a color filter layer, the LCD panel comprising a plurality of first pixel units arranged into an array, each first pixel unit comprising at least three sub-pixels, each sub-pixel comprising a display unit, at least one sub-pixel of each of the plurality of first pixel units being provided with a palmprint identification unit for palmprint identification; and a light source disposed at a light-incident side of the LCD panel and configured for providing light of three-primary colors to three sub-pixels of the at least three sub-pixels respectively, the three sub-pixels comprising the at least one sub-pixel provided with the palmprint identification unit. The driving method is used for the display device having a palmprint identification function.
    Type: Application
    Filed: December 23, 2015
    Publication date: July 20, 2017
    Applicants: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Yingming Liu, Xue Dong, Haisheng Wang, Xiaochuan Chen, Weijie Zhao, Changfeng Li, Xiaoliang Ding, Hongjuan Liu, Shengji Yang, Wei Liu, Lei Wang
  • Publication number: 20170205932
    Abstract: The present disclosure discloses an in-cell touch screen panel, a driving method thereof and a display device. A plurality of sub-pixels are grouped into sub-pixel groups, each of which includes at least two sub-pixels. Cathode layers of different sub-pixel groups are independent of one another. The cathode layers are reused as self-capacitance electrodes. A driving chip determines a touch position by detecting a change in capacitance of the cathode layers, thereby achieving touch control functionality. The driving chip outputs, in a fourth phase, signals to the cathode layers and to the signal terminals of each sub-pixel circuit, each of the signals is a superposition of the signal output in a third phase with a touch scanning signal such that each sub-pixel circuit operates in the fourth phase in the same state as in the third phase.
    Type: Application
    Filed: September 29, 2015
    Publication date: July 20, 2017
    Inventors: Shengji YANG, Xue DONG, Haisheng WANG, Xiaochuan CHEN, Yingming LIU, Weijie ZHAO, Hongjuan LIU, Wei LI, Chunlei WANG, Xiaobo XIE, Rui XU
  • Publication number: 20170205955
    Abstract: The present disclosure provides a touch display panel and a driving method therefor, and a display device including the touch display panel, relating to the field of display technologies, and enabling a touch function of the display panel without increasing the thickness of the display panel.
    Type: Application
    Filed: December 22, 2015
    Publication date: July 20, 2017
    Applicants: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Shengji Yang, Xue Dong, Hailin Xue, Haisheng Wang, Xiaochuan Chen, Yingming Liu, Rui Xu, Lei Wang, Wei Liu, Weijie Zhao, Hongjuan Liu
  • Publication number: 20170199606
    Abstract: The present application discloses a display panel having an array of a plurality of pixel units, each pixel unit including at least three subpixels for image display, at least some of the plurality of pixel units including a semiconductor photodetector for detecting biometric information; a plurality of first scan lines and a plurality of data lines, each first scan line being connected to a row of subpixels, each data line being connected to a column of subpixels; each subpixel including a first transistor for image display; a plurality of common voltage terminals, each common voltage terminal being connected to a semiconductor photodetector; a plurality of second scan lines, each second scan line being connected to a plurality of semiconductor photodetectors for providing a control voltage signal; each semiconductor photodetector having a second transistor; the second transistor being a phototransistor having a gate node connected to a corresponding second scan line for receiving the control voltage signal
    Type: Application
    Filed: July 1, 2016
    Publication date: July 13, 2017
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yingming LIU, Xue DONG, Haisheng WANG, Xiaochuan CHEN, Weijie ZHAO, Changfeng LI, Xiaoliang DING, Shengji YANG, Hongjuan LIU, Wei LIU, Lei WANG
  • Publication number: 20170200036
    Abstract: Disclosed is a fingerprint detection circuit and a display device. The fingerprint detection circuit comprises at least one fingerprint detection unit, the fingerprint detection unit comprising a switch transistor and a sensor capacitor, the fingerprint detection unit further comprising an output amplification element and a data input terminal for receiving a data signal, wherein a control terminal of the output amplification element is coupled with a terminal of the sensor capacitor, an output terminal of the output amplification element functions as an output terminal of the fingerprint detection unit, an input terminal of the output amplification element is coupled with the data input terminal, the output amplification element is configured for amplifying and outputting a current input to the output amplification element via the data input terminal.
    Type: Application
    Filed: October 31, 2016
    Publication date: July 13, 2017
    Inventors: Haisheng WANG, Xue DONG, Hailin XUE, Xiaochuan CHEN, Xiaoliang DING, Yingming LIU, Shengji YANG, Weijie ZHAO, Hongjuan LIU, Wei LIU, Changfeng LI, Pengpeng WANG
  • Patent number: 9703427
    Abstract: A capacitive touch display panel comprises an array substrate, a color filter substrate and a liquid crystal layer disposed between the array substrate and the color filter substrate; the array substrate includes a base substrate, a polarizer sheet, black matrixes (BMs) and a thin-film transistor (TFT) functional unit and is disposed on a light emitting side of the display panel; the color filter substrate is disposed on a light incident side of the display panel; the TFT functional unit includes gate lines, data lines, and TFTs; the BMs correspond to the TFTs; and projections of gate electrodes, source electrodes and drain electrodes of the TFTs all fall into the BMs in a direction vertical to the base substrate.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: July 11, 2017
    Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Weijie Zhao, Xue Dong, Haisheng Wang, Shengji Yang, Yingming Liu, Xiaoliang Ding, Hongjuan Liu, Tao Ren
  • Patent number: 9704011
    Abstract: Embodiments of the present disclosure disclose an array substrate, a driving method thereof, and a display apparatus. A fingerprint recognition module can be arranged within a display region, so as to achieve a purpose of simplifying operations and manufacturing processes. The present disclosure provides an array substrate, the array substrate comprises a base on which gate lines and data lines as well as pixel units defined by the gate lines and the data lines are formed, and the plurality of fingerprint recognition circuits for performing fingerprint recognition are further formed on the base, the fingerprint recognition circuits are arranged within the pixel unit.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: July 11, 2017
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Shengji Yang, Xue Dong, Haisheng Wang, Yingming Liu, Hongjuan Liu
  • Patent number: 9703415
    Abstract: A touch panel, a touch positioning method thereof and a display device are provided. In the touch panel, a plurality of self-capacitive electrodes are divided into several self-capacitive electrode groups independent of each other and several independent self-capacitive electrodes; each of the self-capacitive electrode groups includes at least two self-capacitive electrodes not adjacent to each other, and the respective self-capacitive electrodes in a same self-capacitive electrode group are electrically connected with a touch chip through a same wire, and at least the self-capacitive electrodes located on the four adjacent positions of upper, lower, left and right sides of the respective self-capacitive electrodes in the respective self-capacitive electrode groups are independent self-capacitive electrodes.
    Type: Grant
    Filed: January 4, 2015
    Date of Patent: July 11, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Haisheng Wang, Xue Dong, Hailin Xue, Shengji Yang, Xiaoliang Ding, Yingming Liu, Weijie Zhao, Hongjuan Liu, Changfeng Li, Wei Liu
  • Publication number: 20170192564
    Abstract: An in-cell touch panel and a display device are disclosed, in the in-cell touch panel, each of the self-capacitance electrodes includes a plurality of self-capacitance sub-electrodes which are insulated from each other and connecting lines for connecting the self-capacitance sub-electrodes; an orthographic projection on the first substrate of each self-capacitance sub-electrode does not overlap with an orthographic projection on the first substrate of each gate line; and/or an orthographic projection on the first substrate of each self-capacitance sub-electrode does not overlap with an orthographic projection on the first substrate of each data line. Thus, there is almost no overlapping area between the self-capacitance electrodes and the gate lines and/or there is almost no overlapping area between the self-capacitance electrodes and the data lines, thus there is almost no overlapping capacitance.
    Type: Application
    Filed: October 18, 2015
    Publication date: July 6, 2017
    Applicants: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Changfeng Li, Xue Dong, Haisheng Wang, Xiaochuan Chen, Lei Wang, Yingming Liu, Shengji Yang, Xiaoliang Ding, Weijie Zhao, Wei Liu, Hongjuan Liu, Jiantao Liu, Rui Xu
  • Publication number: 20170185208
    Abstract: A touch display panel, a fabrication method thereof, and a touch display apparatus are provided. The touch display panel comprises an array substrate (20) and an opposite substrate which are arranged to face each other, the opposite substrate includes a plurality of touch sensing electrodes distributed in a row direction. The array substrate (20) includes a plurality of touch driving electrodes (201) distributed in a column direction, a plurality of touch driving electrode wires (202) distributed in the row direction, and a plurality of touch driving electrode connection wires (203) which are distributed in the column direction and are insulated from the touch driving electrode wires (202).
    Type: Application
    Filed: January 29, 2016
    Publication date: June 29, 2017
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yingming Liu, Xue Dong, Haisheng Wang, Xiaochuan Chen, Xiaoliang Ding, Shengjl Yang, Weijie Zhao, Hongjuan Liu, Liguang Deng, Huizhong Zhu, Changfeng Li, Wei Liu, Lei Wang
  • Publication number: 20170186300
    Abstract: Disclosed is an intelligent shoe for the blind, which includes a sole and an upper. At least a portion of the sole is provided with multiple pressure sensors for generating pressure sensing signals when the sole is in contact with raised ground surface. The intelligent shoe further includes a storage chip, used to pre-store a signal characteristic of pressure sensing signals generated when the sole is in contact with a blind sidewalk, and a ata processing chip electrically connected to the multiple pressure sensors and the storage chip, used to compare a signal characteristic of pressure sensing signals from the pressure sensors with the pre-stored signal characteristic, and determine that the sole deviates from the blind sidewalk and send a prompt signal in the case that the signal characteristic of the pressure sensing signals from the pressure sensors is inconsistent with the pre-stored signal characteristic.
    Type: Application
    Filed: November 4, 2015
    Publication date: June 29, 2017
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Haisheng WANG, Xue DONG, Xiaochuan CHEN, Xiaoliang DING, Hongjuan LIU, Yingming LIU, Weijie ZHAO, Wei LIU, Changfeng LI, Rui XU, Lei WANG, Shengji YANG
  • Publication number: 20170185209
    Abstract: A touch display panel. The touch display panel includes a first substrate; a plurality of data lines; and a plurality of gate lines. The touch display panel also includes a plurality of subpixel regions arranged in an array defined by the plurality of data lines and the plurality of gate lines on the first substrate, each subpixel region including a common electrode pattern; a plurality of touch-driving electrodes, each formed by electrically connected common electrode patterns corresponding to at least one row of subpixel regions; and a plurality of touch-sensing electrodes. The plurality of touch-driving electrodes and the touch-sensing electrodes are for detecting a touch motion on the touch display panel.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 29, 2017
    Inventors: SHENGJI YANG, XUE DONG, HAILIN XUE, HAISHENG WANG, XIAOCHUAN CHEN, YINGMING LIU, WEIJIE ZHAO, RUI XU, LEI WANG, CHANGFENG LI, HONGJUAN LIU
  • Publication number: 20170181635
    Abstract: A human sleep monitoring device, including a signal processing module (5), a reflecting film (3), a detection light emitting module (1) and a receiving module (4), wherein the detection light emitting module (1) is configured to emit detection light to the human body; the reflecting film (3) is configured to guide light, which is emitted by the detection light emitting module and not absorbed by the human body, to the receiving module (4); the receiving module (4) is configured to receive the light guided by the reflecting film (3); and the signal processing module (5) is configured to obtain physiological sign data of the human body according to intensity information of the light received by the receiving module (4). The device can monitor the sleep state of the human body in real time, and improve body sleep quality. A human sleep monitoring method is also provided.
    Type: Application
    Filed: December 31, 2015
    Publication date: June 29, 2017
    Inventors: Yingming LIU, Xue DONG, Xiaochuan CHEN, Haisheng WANG, Xiaoliang DING, Shengji YANG, Weijie ZHAO, Hongjuan LIU, Changfeng LI, Wei LIU, Xuewen LV, Jing ZHAO, Xuebo ZHANG, Rui XU, Lei WANG, Ming YANG, Liguang DENG, Huizhong ZHU