Patents by Inventor Lilei Zhang

Lilei 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: 20140152536
    Abstract: There are provided a backlight scanning method and a device thereof. The method comprises: dividing an edge lighting type backlight source into an upper side optical region and a lower side optical region; turning on the light sources at the upper and lower sides respectively after the response of the liquid crystal corresponding to the pixels in the last row of the upper and lower side optical regions is stationary; turning off the light sources at the upper and lower sides respectively when the next response period of the liquid crystal corresponding to the pixels in the first row of the upper and lower side optical regions starts. The method solves the difficulties of applying the scanning backlight to the edge lighting type backlight source by respectively controlling the timings of turning on and off the light sources at the upper and lower sides, whereby the application scope of the scanning backlight is broadened.
    Type: Application
    Filed: October 16, 2012
    Publication date: June 5, 2014
    Applicant: BOE Technology Group Co., Ltd.
    Inventor: Lilei Zhang
  • Publication number: 20140132890
    Abstract: A quantum dot color filter is used for a liquid crystal panel comprising a plurality of pixels. Each pixel has a plurality of sub-pixels. Each sub-pixel corresponds to one color. The color filter includes subregions disposed in one to one correspondence with the sub-pixels. At least one subregion is formed of a quantum dot material and the quantum dot material generates light of the same color as a corresponding sub-pixel after excitation.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 15, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: LILEI ZHANG
  • Publication number: 20140055336
    Abstract: Method, apparatus, and system for controlling three dimensional displays are provided. The method comprises: acquiring a current time when a liquid crystal raster device is driven by a AC driving voltage signal; shutting down a backlight source when the current time is within a setting period of time included in an input period of the AC driving voltage signal, wherein the setting period of time refers to a period during which a polarity of the AC driving voltage signal changes such that an image crosstalk is generated when the backlight source is in a normal-open state. Since the backlight source is shut down and stops providing backlight to the panel when the current time is within the setting period, the panel displays black thereby left eye and right eye images are prevented from entering into error regions of view, the image crosstalk is reduced and a display quality is improved.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 27, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanbing WU, Lilei ZHANG
  • Publication number: 20140043376
    Abstract: The present disclosure relates to a technical field of Liquid Crystal Display (LCD), and particularly discloses a method for inserting frames in a LCD apparatus and the LCD apparatus, for addressing the problem of trails and improving the response time of picture. The method for inserting frames comprises: acquiring gray scale values of chromatic aberrations of individual pixel units on a current Nth frame of image according to gray scale values of the individual pixel units and a pre-stored gray to gray (GTG) response time relationship of a liquid crystal; and inserting and displaying a chromatic aberration image frame between the Nth frame of image and the (N+1)th frame of image.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 13, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lilei ZHANG, Guangliang SHANG, Kailiang ZHANG
  • Patent number: 8384848
    Abstract: The present invention relates to an edge-lighting LED backlight and LCD. The edge-lighting LED backlight comprises an LED light bar and a light guide plate, wherein a reflector is disposed between the LED light bar and the light guide plate, holes are set on the reflector, and light emitted from the LED light bar enters into the light guide plate through the holes. An LCD comprises the above edge-lighting LED backlight. In the above solution, the surface reflectance of the LED light bar is improved, the light loss is decreased and the utilization rate of light is improved by disposing the reflector between the LED light bar and the light guide plate, which decreases the quantity of the LEDs and the cost of the backlight.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: February 26, 2013
    Assignee: Boe Technology Group Co., Ltd.
    Inventors: Qingjiang Wang, Xingxing Zhao, Xiaobin Sun, Lifang Wan, Lilei Zhang, Gang Wang, Xibin Shao
  • Patent number: 8384746
    Abstract: The embodiments of the present invention relate to a color management method and device, the method comprises: RGB values is acquired from image signal inputted from external device; the corresponding transmittance of red pixel, transmittance of green pixel, and transmittance of blue pixel are calculated with an formula according to said RGB values and pre-stored system transition matrix with standard transition matrix; a control signal to control a driving voltage and/or luminance of light source corresponding to the red, green and blue pixels of the display device is generated according to the calculated transmittance of red pixel, transmittance of green pixel, and transmittance of blue pixel, so as to control the display device to perform the color display. The color management method enables the display device to accurately restore the reproduction color information, thereby effectively solving the color distortion problem of the display device.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: February 26, 2013
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Lifang Wan, Lilei Zhang, Xingxing Zhao, Qingjiang Wang
  • Publication number: 20120313846
    Abstract: The disclosed technology discloses a backlight scanning method for controlling a backlight of a liquid crystal display panel, the backlight comprising light groups on left and right sides. The method comprises steps of: determining a time period for turning on and off the light groups on the left and right sides in accordance with a control signal for pixels in the liquid crystal display panel; and in scanning, turning on and off the light groups on the left and right sides alternately in sets, and during the course of scanning one frame, turning on or off the light groups on the left and right sides at least two times.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 13, 2012
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Lilei ZHANG
  • Publication number: 20110115836
    Abstract: The embodiments of the present invention relate to a color management method and device, the method comprises: RGB values is acquired from image signal inputted from external device; the corresponding transmittance of red pixel, transmittance of green pixel, and transmittance of blue pixel are calculated with an formula according to said RGB values and pre-stored system transition matrix with standard transition matrix; a control signal to control a driving voltage and/or luminance of light source corresponding to the red, green and blue pixels of the display device is generated according to the calculated transmittance of red pixel, transmittance of green pixel, and transmittance of blue pixel, so as to control the display device to perform the color display. The color management method enables the display device to accurately restore the reproduction color information, thereby effectively solving the color distortion problem of the display device.
    Type: Application
    Filed: November 12, 2010
    Publication date: May 19, 2011
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lifang WAN, Lilei ZHANG, Xingxing ZHAO, Qingjiang WANG
  • Publication number: 20100103344
    Abstract: The present invention relates to an edge-lighting LED backlight and LCD. The edge-lighting LED backlight comprises an LED light bar and a light guide plate, wherein a reflector is disposed between the LED light bar and the light guide plate, holes are set on the reflector, and light emitted from the LED light bar enters into the light guide plate through the holes. An LCD comprises the above edge-lighting LED backlight. In the above solution, the surface reflectance of the LED light bar is improved, the light loss is decreased and the utilization rate of light is improved by disposing the reflector between the LED light bar and the light guide plate, which decreases the quantity of the LEDs and the cost of the backlight.
    Type: Application
    Filed: August 17, 2009
    Publication date: April 29, 2010
    Applicant: BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Qingjiang Wang, Xingxing Zhao, Xiaobin Sun, Lifang Wan, Lilei Zhang, Gang Wang, Xibin Shao