Patents by Inventor Changjun Lu

Changjun Lu 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: 20150310800
    Abstract: The disclosure discloses a Light-Emitting Diode (LED) display, which includes: an LED display panel (10); and a display driving circuit (30), the display driving circuit (30) includes a driving circuit (33) and a control circuit (35), the driving circuit (33) includes a first constant current channel group (331), a second constant current channel group (333) and a third constant current channel group (335), wherein the first constant current channel group (331) controls the display of red lamp tubes of the LED display panel (10); the second constant current channel group (333) controls the display of green lamp tubes of the LED display panel (10); the third constant current channel group (335) controls the display of blue lamp tubes of the LED display panel (10); the control circuit (35) includes a driving control circuit (353), the driving control circuit (353) is configured to control the switching-on or switching-off of the driving circuit (33).
    Type: Application
    Filed: May 31, 2013
    Publication date: October 29, 2015
    Inventors: Changjun Lu, Zhiyong Liu
  • Publication number: 20150302796
    Abstract: A Light-Emitting Diode (LED) driving circuit and a control system includes: a driving control circuit and a constant current channel group circuit, wherein the driving control circuit includes: a logic control circuit and a clock delay circuit; the logic control circuit is connected with the constant current channel group circuit, and is configured to control the ordered switching-on or switching-off of the constant current channel group circuit by virtue of a data control signal; and the clock delay circuit is connected with the logic control circuit, configured to acquire a timing control signal synchronous with the data control signal and output the timing control signal and integrated in the LED driving circuit.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 22, 2015
    Applicant: Leyard Optoelectronic Co., Ltd.
    Inventors: Changjun LU, Zhiyong LUI
  • Publication number: 20150302797
    Abstract: An LED display device and an LED control system.
    Type: Application
    Filed: May 22, 2013
    Publication date: October 22, 2015
    Inventors: Changjun LU, Zhiyong LIU
  • Publication number: 20150302792
    Abstract: A Light-Emitting Diode (LED) display includes: an LED display panel; and a display driving circuit, including a switching circuit and a control circuit, wherein the switching circuit comprises first and second switching sub-circuits; the first switching sub-circuit includes one or more field effect transistors; the second switching sub-circuit includes one or more field effect transistors; the control circuit includes a power supply control circuit connected with a third end of the switching circuit through a power supply control port. The switching circuit and the control circuit are integrated in the display driving circuit, and the two switching sub-circuits control the power supply of R/G/B LEDs in an LED particle array with M lines and N columns in the LED display panel respectively, so that the effects of small PCB area occupied by the control circuit, simple design, high refresh rate and low power consumption of the LED display are achieved.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 22, 2015
    Applicant: LEYARD OPTOELECTRONIC CO., LTD.
    Inventors: Changjun LU, Zhiyong LIU
  • Publication number: 20150294640
    Abstract: A method and device for processing a video image are provided. The method comprises: receiving an original video image; adjusting a signal clock frequency of the original video image to acquire a processed video image; after a command signal input by a user is received, capturing the processed video image according to a preset size to acquire a video image corresponding to a display window of the preset size; and encoding the video image corresponding to the display window of the preset size to acquire an encoded video image.
    Type: Application
    Filed: May 22, 2013
    Publication date: October 15, 2015
    Inventors: Weilin Lei, Changjun Lu
  • Publication number: 20130169764
    Abstract: The disclosure discloses an LED stereoscopic display, a display method thereof and a signal receiver. Wherein, the LED stereoscopic display method comprises: a video signal controller, which is configured for receiving image data, and controlling the signal receiver to a single-frame mode or a double-frame mode according to the image data; a signal receiver, which is configured for receiving the image data from the video signal controller, and when in the double-frame mode, dividing the image data into left-eye image frames and right-eye image frames with a time difference there-between, and storing the left-eye image frames and the right-eye image frames; and an LED display panel, which is configured for displaying the left-eye image frames and the right-eye image frames. The disclosure can improve the resolution of the LED stereoscopic display.
    Type: Application
    Filed: July 14, 2011
    Publication date: July 4, 2013
    Applicant: LEYARD OPTOELECTRONIC CO, LTD.
    Inventors: Changjun Lu, Tong Pan