Patents by Inventor Weihao HU

Weihao HU 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: 9329829
    Abstract: The disclosure provides a synchronous display method of an spliced display screen which comprises at least two spliced display units and at least two timing controllers respectively corresponding to the spliced display units, wherein the method comprises steps of: receiving, by each timing controller, a timing control signal for a current frame of the corresponding spliced display unit, feedback from the spliced display unit corresponding to the timing controller; determining, by each timing controller, a phase difference between the timing control signal for the current frame of the corresponding spliced display unit and a reference timing control signal received by the timing controller; judging, by each timing controller, whether or not the phase difference goes beyond a predetermined threshold range; if it is judged that the phase difference goes beyond the predetermined threshold range, generating a phase adjustment value, by the timing controller, based on the phase difference, wherein the phase adjustm
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: May 3, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yangbing Yu, Weihao Hu, Yoon Dae Keun, Yanping Liao, Xibin Shao, Lei Liu, Zongze He
  • Publication number: 20160042718
    Abstract: The present disclosure provides a method and a device for modulating image display quality of a display device. The method includes: debugging a display device to a modulation state, so that a common voltage of the display device corresponding to a predetermined gray level is a standard voltage; and modulating a common voltage of the display device corresponding to other controllable gray level into a preset value, wherein there is a first preset relationship between the preset value and the standard voltage.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 11, 2016
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: WENGANG SU, DAEKEUN YOON, WEIHAO HU, LEI LIU, YANGBING YU
  • Publication number: 20160005370
    Abstract: An image display controlling method and a control device thereof, and an image display device are provided. The method includes: receiving at least one frame of a first image to be displayed by the display; controlling the display to interpolatively display a frame of a second image when a frame number of the received first image displayed continuously by the display is greater than or equal to a preset frame number; wherein the first image is different from the second image. This method can prevent the display to display a still picture for a long time and thereby eliminating after-image.
    Type: Application
    Filed: June 30, 2014
    Publication date: January 7, 2016
    Inventors: Lei LIU, Daekeun YOON, Weihao HU, Zongze HE, Wengang SU
  • Publication number: 20150379942
    Abstract: The present invention discloses a local backlight brightness adjustment method for a direct backlight in a display device, the method comprising the steps of: step 1: performing edge detection on an input image to determine whether a sensitive zone exists, the sensitive zone being a portion in the input image in which a gray level difference between adjacent pixels is greater than a predetermined threshold; and Step 2: if a sensitive zone exists, performing a backlight brightness adjustment with respect to a backlight region corresponding to the sensitive zone and a remaining backlight region other than the backlight region corresponding to the sensitive zone, respectively.
    Type: Application
    Filed: September 9, 2014
    Publication date: December 31, 2015
    Inventors: Rui Guo, Zongze He, Lei Liu, Weihao Hu, Yoon Dae Keun
  • Publication number: 20150381928
    Abstract: An interface conversion circuit, a display panel driving method and a display apparatus for realizing UHD image display at least by a LVDS interface together with an UHD display apparatus are provided. The interface conversion circuit comprises a low voltage differential signaling (LVDS) interface and a data format conversion module. The LVDS interface is configured to receive a LVDS signal from a LVDS signal source and transmit the LVDS signal to the data format conversion module. The data format conversion module is configured to convert the received LVDS signal into a digital video interface eDP signal.
    Type: Application
    Filed: June 23, 2014
    Publication date: December 31, 2015
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Luqiang GUO, Zongze HE, Weihao HU
  • Patent number: 9226360
    Abstract: A boosting circuit, a backlight driving circuit and a backlight module are provided. The boosting circuit comprises a boosting chip (U1), an energy-storage inductor (L1), a freewheeling diode (D1), a first capacitor (C1), and a current mirror unit (U2), wherein an input terminal of an inputting branch of the current mirror unit (U2) IS connected with the cathode of the freewheeling diode (D1), and an output terminal of the inputting branch is connected with the signal input terminal (Vin) of the boosting circuit through a first resistor (R1), an input terminal of an outputting branch of the current mirror unit (U2) IS connected with the cathode of the freewheeling diode (D1), an output terminal of the outputting branch is grounded through a second resistor (R2), an ungrounded terminal of the second resistor (R2) is connected with a signal feedback pin of the boosting chip.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: December 29, 2015
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Bin Zhang, Liang Zhang, Weihao Hu
  • Publication number: 20150348471
    Abstract: The present invention provides a backlight adjustment method, a backlight adjustment system and a display device. The backlight adjustment method comprises: dividing a frame of picture into n image blocks, obtaining the sub-backlight brightness corresponding to each image block, and further comprises: calculating an average backlight brightness corresponding to the frame of the picture on the basis of each sub-backlight brightness, determining whether the sub-backlight brightness needs to be enhanced on the basis of the average backlight brightness, and performing enhancement for the sub-backlight brightness which needs to be enhanced, wherein n is an integer greater than 1. The backlight adjustment method not only solves the problems of reduced brightness for bright picture and poor display effect associated with existing backlight adjustment method, but also reduces the overall display power consumption, increase the image contrast and reduce influence of mora (ripple phenomenon) on the screen.
    Type: Application
    Filed: September 30, 2014
    Publication date: December 3, 2015
    Inventors: Zhiming MENG, Weihao HU, Jianming WANG, Wengang SU, Zongze HE
  • Publication number: 20150279332
    Abstract: The disclosure provides a display panel, a method for driving the display panel and a 3D display device including the display panel, and relates to the technical field of display. The display panel comprises a display unit and at least one timing control units, wherein the display unit comprises a plurality of display regions and the plurality of display regions are simultaneously scanned. With the present invention, wire impedance in the display panel is reduced, charging time for a single row of pixels can be reduced and charging rate of the pixels can be improved.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 1, 2015
    Inventors: Weihao Hu, Yoon Dae Keun, Yanping Liao, Yufan Du, Zongze He, Yangbing Yu
  • Publication number: 20150264770
    Abstract: A boosting circuit, a backlight driving circuit and a backlight module are provided. The boosting circuit comprises a boosting chip (U1), an energy-storage inductor (L1), a freewheeling diode (D1), a first capacitor (C1), and a current mirror unit (U2), wherein an input terminal of an inputting branch of the current mirror unit (U2) IS connected with the cathode of the freewheeling diode (D1), and an output terminal of the inputting branch is connected with the signal input terminal (Vin) of the boosting circuit through a first resistor (R1), an input terminal of an outputting branch of the current mirror unit (U2) IS connected with the cathode of the freewheeling diode (D1), an output terminal of the outputting branch is grounded through a second resistor (R2), an ungrounded terminal of the second resistor (R2) is connected with a signal feedback pin of the boosting chip.
    Type: Application
    Filed: March 29, 2013
    Publication date: September 17, 2015
    Inventors: Bin Zhang, Liang Zhang, Weihao Hu
  • Publication number: 20150255041
    Abstract: The invention provides a driving method and a driving system for a display panel. The driving method comprises: partitioning the display panel into N display sub-areas, each of which is used for displaying the 1/N sub-picture of the whole frame of picture to be displayed and correspondingly controlled by one timing controller, wherein N?2 and N is an integer, and the data signal of the whole frame of picture to be displayed is allocated to each of the timing controllers. According to the driving method and the driving system, by allocating the data signal of the whole frame of picture to be displayed to each of timing controllers, the backlight brightness provided by the different backlight sub-areas is the same, and then a joint or boundary phenomenon occurring among the different backlight sub-areas is avoided.
    Type: Application
    Filed: July 30, 2014
    Publication date: September 10, 2015
    Inventors: Lei LIU, Daekeun YOON, Weihao HU, Luqiang GUO, Rui GUO
  • Publication number: 20150234631
    Abstract: The disclosure provides a synchronous display method of an spliced display screen which comprises at least two spliced display units and at least two timing controllers respectively corresponding to the spliced display units, wherein the method comprises steps of: receiving, by each timing controller, a timing control signal for a current frame of the corresponding spliced display unit, feedback from the spliced display unit corresponding to the timing controller; determining, by each timing controller, a phase difference between the timing control signal for the current frame of the corresponding spliced display unit and a reference timing control signal received by the timing controller; judging, by each timing controller, whether or not the phase difference goes beyond a predetermined threshold range; if it is judged that the phase difference goes beyond the predetermined threshold range, generating a phase adjustment value, by the timing controller, based on the phase difference, wherein the phase adjustm
    Type: Application
    Filed: June 26, 2014
    Publication date: August 20, 2015
    Inventors: Yangbing Yu, Weihao Hu, Yoon Dae Keun, Yanping Liao, Xibin Shao, Lei Liu, Zongze He
  • Publication number: 20150235597
    Abstract: The present invention provides a light source control module, a backlight module and driving method thereof which can overcome the problems of insufficient color amount, poor performance and lowered color saturation. A light source control module of the present invention is used for separately controlling illumination colors and/or brightness of each light source in the backlight module according to image information. The driving method of the backlight module comprises: calculating representative color and/or brightness of each image section based on image information, wherein each image section corresponds to a light output area on the output surface of the backlight module, each light output area is illuminated by one light source in the backlight module; adjusting the illumination colors and/or brightness of each light source such that the color and/or brightness of each light output area is in conformity with the representative color and/or brightness of corresponding image section.
    Type: Application
    Filed: July 31, 2014
    Publication date: August 20, 2015
    Inventors: Zhiming MENG, Daekeun YOON, Weihao HU, Zongze HE, Jianming WANG
  • Publication number: 20150103069
    Abstract: The present invention provides an array substrate, a 3D display device and a driving method for the same, and belongs to the field of 3D display. Wherein, the array substrate comprises: a substrate, and 2n rows of pixel units being arranged on the substrate in a matrix form, the array substrate further comprises gate lines corresponding to the pixel units in each row, and each of the gate lines is connected to the gate electrodes of thin film transistors in corresponding pixel units, wherein the gate line corresponding to pixel units in the (2k?1)th row of pixel units or the gate line corresponding to the 2kth row receives the gate scanning signal in a predetermined time period, wherein k is a natural number which is not less than 1 and not greater than n.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 16, 2015
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liang ZHANG, Xibin SHAO, Dan WANG, Weihao HU, Yizhen XU, Shuai HOU
  • Publication number: 20140368480
    Abstract: A thin film transistor array substrate, a driving method therefore, and a liquid crystal display are disclosed.
    Type: Application
    Filed: December 3, 2012
    Publication date: December 18, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Bin Zhang, Liang Zhang, Weihao Hu
  • Publication number: 20140160111
    Abstract: According to embodiments of the present invention, the gate lines of the array substrate receive the gate scanning signal in a preset time period. Specifically, the gate lines of pixel units in odd rows are receiving the gate scanning signal in the first time interval of the preset time period, and the gate lines of pixel units in even rows are receiving the gate scanning signal in the second time interval of the preset time period.
    Type: Application
    Filed: October 30, 2013
    Publication date: June 12, 2014
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liang Zhang, Xibin Shao, Dan Wang, Weihao Hu, Yizhen Xu, Shuai Hou
  • Publication number: 20140160098
    Abstract: The present invention belongs to the field of 3D display, and provides an array substrate, a 3D display device and a driving method for the same. The array substrate comprising a substrate and m rows and 2n columns of pixel units formed on the substrate in a matrix form. The array substrate further comprises data lines each of which corresponds to the pixel units in each row and gate lines each of which corresponds to the pixel units in each column. Each of the data lines is connected to source electrodes of thin film transistors in the corresponding pixel units, and each of gate lines is connected to gate electrodes of the thin film transistors in the corresponding pixel units. The gate lines receive a gate scanning signal according to a predetermined period.
    Type: Application
    Filed: December 9, 2013
    Publication date: June 12, 2014
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liang ZHANG, Xibin SHAO, Dan WANG, Weihao HU, Yizhen XU, Shuai HOU