Display panel and method for driving same

  • US 11,151,955 B2
  • Filed: 11/30/2018
  • Issued: 10/19/2021
  • Est. Priority Date: 11/12/2018
  • Status: Active Grant
First Claim
Patent Images

1. A display panel, comprising:

  • scan lines extending in a first direction and configured to provide a scan signal;

    data lines extending in a second direction, arranged intersecting the scan lines, and configured to provide a data signal in a square-wave form, wherein a waveform of the data signal has a starting end wherein a polarity of the data signal is inverted and gradually rises to a predetermined value, and a trailing end where the data signal reaches the predetermined value;

    a sub-pixel group, connected to the scan lines and the data lines, wherein the sub-pixel group comprising a sub sub-pixel and a positive sub-pixel, wherein when the scan signal is turned on, the sub sub-pixel is charged through the data signal at the starting end, and the positive sub-pixel is charged through the data signal at the trailing end; and

    a driving module, connected to the scan lines and the data lines and configured to control signal output of the scan lines and the data lines, wherein the driving module controls the scan line connected to the sub sub-pixel to provide the scan signal and a pre-charge signal prior to the scan signal, wherein polarity of the data signal when the pre-charge signal is provided by the scan line is the same as when the scan signal is provided by the scan line, and wherein the driving module controls the scan line connected to the positive sub-pixel to provide a scan signal,wherein the scan lines are arranged in rows in the second direction, and a period of time of the scan signal provided by each of the scan lines is defined as T; and

    wherein the driving module is configured to control the data signal to output in either of a first output mode and a second output mode,wherein in the first output mode, after the scan signal is applied, the polarity of the data signal is inverted for one time after one T, and is inverted every mT, m is a positive integer greater than or equal to 2, and a period the driving module controlling the pre-charge signal provided by the scan lines connected to a same sub sub-pixel prior to the scan signal is t1, wherein (2m(n2)−

    1)T≤

    t1

    2m(n2), and n2 is a positive integer, andwherein in the second output mode, after the scan signal is applied, the polarity of the data signal is inverted every m ‘

    T, where m’

    is a positive integer greater than or equal to 2, and a period the driving module controlling the pre-charge signal provided by the scan lines coupled to a same sub sub-pixel prior to the scan signal is t2, where (2m′

    (n4)−

    1)T≤

    t2

    2m′

    (n4)T, and n4 is a positive integer.

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