CN-117037708-B - Display panel and driving method and device thereof

CN117037708BCN 117037708 BCN117037708 BCN 117037708BCN-117037708-B

Abstract

The invention discloses a display panel and a driving method and a device thereof, wherein the driving method comprises the steps of calculating the data voltage variation between pixel units in an ith row and pixel units in an (i-1) th row in a frame; and determining a target thrust parameter of the pixel unit in the ith row according to the target voltage interval to which the data voltage variation belongs. The method comprises the steps of calculating the target thrust parameter of the ith row of pixel units in advance, and then, when the source electrode driving circuit provides data voltage for the ith row of pixel units in the process of displaying a frame of refreshing picture on the display panel, adjusting the thrust of the source electrode driving circuit to the predetermined target thrust parameter of the ith row of pixel units by the driving device, so that the thrust of the source electrode driving circuit can be dynamically adjusted according to the data voltage of the ith row of pixel units, and the power consumption of the source electrode driving circuit can be reduced under the condition of ensuring normal display of the picture, and the effect of reducing the power consumption is achieved.

Inventors

YE SHUAI
Yan Yinzhe
Cao Zhongtao
ZHANG LINZHENG

Assignees

武汉天马微电子有限公司

Dates

Publication Date: 20260505
Application Date: 20230721

Claims (9)

1. The driving method of the display panel is characterized in that the display panel comprises a plurality of pixel units, a plurality of data lines and a source electrode driving circuit, wherein the pixel units are arranged in an array, each data line is connected with a column of pixel units, and the source electrode driving circuit is used for providing data voltages for the data lines; the driving method includes: Calculating the data voltage variation between the pixel units of the ith row and the pixel units of the (i-1) row in a frame, wherein i is more than or equal to 2 and N is more than or equal to N, and N is the total number of rows of the pixel units; determining a target thrust parameter of the ith row of pixel units according to a target voltage interval to which the data voltage variation belongs; the data voltage variation includes DeltaVA (i); ΔVA(i)=|VAvg(i)-VAvg(i-1)|; wherein VAvg (i) is the average value of the data voltages of the pixel units in the i-th row, VAvg (i-1) is the average value of the data voltages of the pixel units in the (i-1) -th row; The step of determining the target thrust parameter of the ith row of pixel units comprises the steps of searching a voltage interval to which the delta VA (i) belongs from a plurality of preset delta VA voltage intervals, and determining the thrust correspondingly set by the voltage interval to which the delta VA (i) belongs as the target thrust parameter of the ith row of pixel units.
2. The driving method according to claim 1, wherein calculating the data voltage variation between the pixel cells of the i-th row and the pixel cells of the (i-1) -th row in one frame includes: and calculating the voltage variation of the jth column data between the ith row of pixel units and the (i-1) th row of pixel units in one frame to determine the target thrust parameter of the jth column in the ith row of pixel units, wherein j is more than or equal to 1 and less than or equal to M, and M is the total column number of the pixel units.
3. The driving method according to claim 2, wherein the data voltage variation amount includes Δvap (i, j); ΔVAP(i,j)=ΔVA(i)-ΔVP(i,j); ΔVA(i)=|VAvg(i)-VAvg(i-1)|; ΔVP(i,j)=|Vp(i,j)-Vp(i-1,j)|; Wherein VAvg (i) is the average value of the data voltages of the pixel cells in the i-th row, VAvg (i-1) is the average value of the data voltages of the pixel cells in the (i-1) th row, vp (i, j) is the data voltage of the j-th column in the pixel cells in the i-th row, and Vp (i-1, j) is the data voltage of the j-th column in the pixel cells in the (i-1) th row.
4. A driving method according to claim 3, wherein determining the target thrust parameter of the i-th row of pixel cells comprises: And searching a voltage interval to which the delta VAP (i, j) belongs from a plurality of preset delta VAP voltage intervals, and determining the thrust correspondingly set in the voltage interval to which the delta VAP (i, j) belongs as a target thrust parameter of the j-th column in the i-th row of pixel units.
5. The method of driving as set forth in claim 3, wherein the data voltage variation further comprises ΔVP (i, j).
6. The driving method according to claim 5, wherein determining the target thrust parameter of the i-th row of pixel units comprises: Searching a voltage interval to which the delta VP (i, j) belongs from a plurality of preset delta VP voltage intervals, and determining a thrust corresponding to the voltage interval to which the delta VP (i, j) belongs as a first thrust; Searching a voltage interval to which the delta VAP (i, j) belongs from a plurality of preset delta VAP voltage intervals, and determining a thrust corresponding to the voltage interval to which the delta VAP (i, j) belongs as a second thrust; and the sum of the first pushing force and the second pushing force is the target pushing force parameter of the j-th column in the i-th row pixel unit.
7. The driving device of the display panel is characterized in that the display panel comprises a plurality of pixel units, a plurality of data lines and a source electrode driving circuit, wherein the pixel units are arranged in an array, each data line is connected with a column of pixel units, and the source electrode driving circuit is used for providing data voltages for the data lines; the driving device includes: the voltage calculation module is used for calculating the data voltage variation between the pixel units in the ith row and the pixel units in the (i-1) th row in a frame, wherein i is more than or equal to 2 and less than or equal to N, and N is the total number of rows of the pixel units; the thrust adjusting module is used for determining target thrust parameters of the ith row of pixel units according to the target voltage interval to which the data voltage variation belongs; the data voltage variation includes DeltaVA (i); ΔVA(i)=|VAvg(i)-VAvg(i-1)|; wherein VAvg (i) is the average value of the data voltages of the pixel units in the i-th row, VAvg (i-1) is the average value of the data voltages of the pixel units in the (i-1) -th row; the thrust adjusting module is configured to find a voltage interval to which the Δva (i) belongs from a plurality of preset Δva voltage intervals, and determine a thrust corresponding to the voltage interval to which the Δva (i) belongs as a target thrust parameter of the ith row of pixel units.
8. The driving apparatus as recited in claim 7 wherein said voltage calculation module is configured to calculate a j-th column data voltage variation between an i-th row of pixel cells and a (i-1) -th row of pixel cells in a frame such that said thrust adjustment module determines a j-th column target thrust parameter in said i-th row of pixel cells, wherein 1≤j≤m, and M is a total column number of pixel cells.
9. A display panel, comprising a plurality of pixel units arranged in an array, a plurality of data lines, a source driving circuit, and the driving device according to any one of claims 7 to 8; Each data line is connected with a column of pixel units, the source electrode driving circuit is connected with the plurality of data lines, and the driving device is connected with the source electrode driving circuit.

Description

Display panel and driving method and device thereof Technical Field The present invention relates to the field of display technologies, and in particular, to a display panel and a driving method and apparatus thereof. Background The display area of the display panel is provided with pixel units, and the circuit structure at the periphery of the display area provides signals for the pixel units to drive the pixel units to display. The peripheral circuit structure of the display panel at least comprises a source electrode driving circuit, and the source electrode driving circuit provides data voltages for the pixel units through the data lines. When the source driving circuit outputs a data voltage to the data line, a constant pushing force is required. At present, the thrust of the source electrode driving circuit adopts the large thrust of the heavy-load picture, so that the power consumption is higher. Disclosure of Invention The invention provides a display panel, a driving method and a driving device thereof, which are used for solving the problem of high power consumption of the existing display panel. According to an aspect of the present invention, there is provided a driving method of a display panel, the display panel including a plurality of pixel units arranged in an array, a plurality of data lines, each of the data lines being connected to a column of the pixel units, and a source driving circuit for providing data voltages to the data lines; the driving method includes: Calculating the data voltage variation between the pixel units of the ith row and the pixel units of the (i-1) row in a frame, wherein i is more than or equal to 2 and N is more than or equal to N, and N is the total number of rows of the pixel units; and determining a target thrust parameter of the ith row of pixel units according to the target voltage interval to which the data voltage variation belongs. According to another aspect of the present invention, there is provided a driving apparatus of a display panel including a plurality of pixel units arranged in an array, a plurality of data lines each connected to a column of the pixel units, and a source driving circuit for supplying data voltages to the data lines; the driving device includes: the voltage calculation module is used for calculating the data voltage variation between the pixel units in the ith row and the pixel units in the (i-1) th row in a frame, wherein i is more than or equal to 2 and less than or equal to N, and N is the total number of rows of the pixel units; and the thrust adjusting module is used for determining the target thrust parameter of the pixel unit in the ith row according to the target voltage interval to which the data voltage variation belongs. According to another aspect of the present invention, there is provided a display panel including a plurality of pixel units arranged in an array, a plurality of data lines, a source driving circuit, and a driving apparatus as described above; Each data line is connected with a column of pixel units, the source electrode driving circuit is connected with the plurality of data lines, and the driving device is connected with the source electrode driving circuit. In the invention, a driving device calculates the data voltage variation between an ith row of pixel units and an (i-1) th row of pixel units in a frame of to-be-refreshed picture, and determines a target thrust parameter of the ith row of pixel units according to a target voltage interval to which the data voltage variation belongs. Then, when the source electrode driving circuit provides data voltage for the ith row of pixel units in the process of displaying a frame of refreshing picture on the display panel, the driving device can adjust the thrust of the source electrode driving circuit to be a target thrust parameter of the ith row of pixel units determined in advance, so that the thrust of the source electrode driving circuit can be dynamically adjusted according to the data voltage of the ith row of pixel units, and the power consumption of the source electrode driving circuit can be reduced under the condition of ensuring normal display of the picture, and the effect of reducing the power consumption is achieved. It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art