Patents by Inventor Qi-Ming Lu

Qi-Ming 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).

  • Patent number: 8390651
    Abstract: A driving method for driving a display apparatus is provided. The driving method includes: configuring a plurality of driving voltages corresponding to a plurality of gray scales, where the gray scales include a first gray scale and a second gray scale smaller than the first gray scale, and a first driving voltage corresponding to the first gray scale is lower than a second driving voltage corresponding to the second gray scale; and controlling the display apparatus to display a gray scale merely up to the second gray scale. In this way, the driving method hence reduces the response time of the display apparatus, which may be an LCD display panel.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: March 5, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Kuei-Wei Huang, Yi-Cheng Tsai, Qi-Ming Lu, Jhen-Shen Liao, Kuan-Hung Liu
  • Patent number: 8207919
    Abstract: A method for adjusting white balance includes generating a first matrix according to values in axes of a color gamut corresponding to optical characteristics of a plurality of first LEDs; generating a second matrix according to values in the axes of the color gamut corresponding to optical characteristics of the plurality of first LEDs while in white balance; generating a third matrix according to values in the axes of the color gamut corresponding to optical characteristics of a plurality of second LEDs; storing the first matrix, second matrix, and third matrix; generating a calibration matrix by multiplying the second matrix with an inverse of the first matrix; generating a fourth matrix by multiplying the third matrix with the calibration matrix. As a result, the optical characteristics of the plurality of second LEDs can be effectively and rapidly adjusted simply referring to the differences between the second and fourth matrices.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: June 26, 2012
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Qi-Ming Lu, Chih-Sheng Chou, Hung-Hsiang Chen
  • Publication number: 20100277509
    Abstract: A method for driving an electrophoretic display device for reducing the time required to update the display image. The electrophoretic display device comprises a frame buffer, a lookup table, a controller and an electrophoretic display panel. The frame buffer stores a first display frame data. The controller accesses a transition data of transforming the first display frame data to a second display frame data according to the lookup table, for outputting a control data. The electrophoretic display panel displays the second display frame data according to the control data. Therefore, the position the charged particle in a pixel to be moved to during the erasing step can be adjusted by utilizing the lookup table, consequently reducing the time required to update the pixel.
    Type: Application
    Filed: June 24, 2009
    Publication date: November 4, 2010
    Inventors: Qi-Ming Lu, Hung-Hsiang Chen, Jhen-Shen Liao
  • Publication number: 20100238093
    Abstract: An EPD device includes a plurality of pixels, wherein a first pixel is written by a first grey level, a second pixel is written by a second grey level. When the EPD device refreshes the displayed frame, the first pixel and the second pixel are erased individually. After the erasing of first pixel is completed, a third grey level is written to the first pixel immediately. After erasing of the second pixel is completed, a fourth grey level is written to the second pixel immediately. Thus, each pixel is written by their next grey levels immediately after the erasing step so the writing time is reduced and the motion blur of the EPD device when refreshing the displayed frame can be improved.
    Type: Application
    Filed: May 11, 2009
    Publication date: September 23, 2010
    Inventors: Qi-Ming Lu, Hung-Hsiang Chen, Jhen-Shen Liao
  • Publication number: 20100045579
    Abstract: A method for adjusting white balance includes generating a first matrix according to values in axes of a color gamut corresponding to optical characteristics of a plurality of first LEDs; generating a second matrix according to values in the axes of the color gamut corresponding to optical characteristics of the plurality of first LEDs while in white balance; generating a third matrix according to values in the axes of the color gamut corresponding to optical characteristics of a plurality of second LEDs; storing the first matrix, second matrix, and third matrix; generating a calibration matrix by multiplying the second matrix with an inverse of the first matrix; generating a fourth matrix by multiplying the third matrix with the calibration matrix. As a result, the optical characteristics of the plurality of second LEDs can be effectively and rapidly adjusted simply referring to the differences between the second and fourth matrices.
    Type: Application
    Filed: January 23, 2009
    Publication date: February 25, 2010
    Inventors: Qi-Ming Lu, Chih-Sheng Chou, Hung-Hsiang Chen
  • Publication number: 20100033507
    Abstract: A driving method for driving a display apparatus is provided. The driving method includes: configuring a plurality of driving voltages corresponding to a plurality of gray scales, where the gray scales include a first gray scale and a second gray scale smaller than the first gray scale, and a first driving voltage corresponding to the first gray scale is lower than a second driving voltage corresponding to the second gray scale; and controlling the display apparatus to display a gray scale merely up to the second gray scale. In this way, the driving method hence reduces the response time of the display apparatus, which may be an LCD display panel.
    Type: Application
    Filed: April 27, 2009
    Publication date: February 11, 2010
    Inventors: Kuei-Wei Huang, Yi-Cheng Tsai, Qi-Ming Lu, Jhen-Shen Liao, Kuan-Hung Liu