Patent ID: 11929005
Assignee: XIAMEN TIANMA DISPLAY TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. A drive compensation system of a display panel, wherein the display panel comprises:
a plurality of pixel units sequentially arranged in a row direction and a column direction respectively; and a plurality of signal lines extending in the row direction and the column direction respectively;
wherein the plurality of pixel units comprise first pixel units sequentially arranged in the row direction, and the plurality of signal lines comprise first signal lines extending in the column direction; and
wherein the drive compensation system comprises:
a variation curve determination module configured to determine an impedance and capacitive reactance variation curve of one of the first signal lines in the column direction and a charge rate variation curve of the first pixel units in the row direction;
a compensation coefficient determination module configured to determine a compensation coefficients for a respective pixel unit of the plurality of pixel units in the column direction and/or the row direction according to the impedance and capacitive reactance variation curve of the one first signal line in the column direction and/or the charge rate variation curve of the first pixel units in the row direction; and
a drive compensation module configured to compensate the compensation coefficient for the respective pixel unit in the column direction and/or the row direction to a drive signal of the respective pixel unit to drive the respective pixel unit;
the variation curve determination module further comprises an impedance and capacitive reactance determination unit and an impedance and capacitive reactance fitting unit;
the impedance and capacitive reactance determination unit is configured to acquire the impedance and capacitive reactance of at least part of first nodes on the first signal line; wherein one of the first pixel units is electrically connected to the one first signal line through a respective one first node of the first nodes on the one first signal line;
the impedance and capacitive reactance fitting unit is configured to form the impedance and capacitive reactance variation curve of the first signal line in the column direction by fitting according to the impedance and capacitive reactance of the at least part of the first nodes on the tint signal line;
the variation curve determination module further comprises a charge rate determination unlit and a charge rate fitting unit,
the charge rate determination unit is configured to acquire the charge rates of at least part of the first pixel units sequentially arranged in the row direction; and
the charge rate fitting unit is configured to form the charge rate variation curve of first pixel units in the row direction by fitting according to the charge rates of the at least part of the first pixel units sequentially arranged in the row direction;
or,
wherein each pixel unit of the plurality of pixel units comprise a plurality of sub-pixels of different colors; and the variation curve determination module is further configured to determine the impedance and capacitive reactance variation curve of the one first signal line in the column direction electrically connected to a plurality of sub-pixels of a same color sequentially arranged in the column direction, and determine a charge rate variation curve in the row direction of each of the plurality of sub-pixels of a same color sequentially arranged in the row direction,
the compensation coefficient determination module is further configured to determine compensation coefficients for the plurality of subpixels in the column direction and/or the row direction according to the impedance and capacitive reactance variation curve of the one first signal line in the column direction electrically connected to the plurality of sub-pixels of the same color sequentially arranged in the column direction and/or the charge rate variation curve in the row direction of the each sub-pixel of the same color sequentially arranged in the row direction;
the drive compensation module configured to is further configured to compensate a compensation coefficients for a respective sub-pixel in the column direction and/or the row direction to a drive signal of the respective sub-pixel to drive the respective sub-pixel;
or,
the variation curve determination module is further configured to sequentially determine the impedance and capacitive reactance variation curve of the one first signal line in the column direction in each color and each gray level display state of the display panel and/or sequentially determining the charge rate variation curve of the first pixel units in the row direction in the each color and each gray level display state of the display panel;
the compensation coefficient determination module is further configured to determine compensation coefficients for the each pixel unit in the column direction and/or the row direction in the each color and each gray level display state of the display panel according to the impedance and capacitive reactance variation curve of the one first signal line in the column direction in the each color and each gray level display state of the display panel and/or the charge rate variation curve of the first pixel units in the row direction in the each color and each gray level display state of the display panel; and
the drive compensation module is further configured to compensate the compensation coefficients corresponding to the each sub-pixel in the column direction and/or the row direction to the drive signal of the respective pixel unit according to a target emitted color and a target gray level of the pixel unit to drive the respective pixel unit.