Display panel, driving method thereof and display device

A display device comprising a display panel, the display panel comprising:

• a first substrate and a second substrate arranged opposite to each other;
• a black matrix located at a side of the first substrate facing the second substrate or located at a side of the second substrate facing the first substrate;
• and
• a plurality of pixel electrodes arranged in an array located at the side of the first substrate facing the second substrate, an orthographic projection of the pixel electrode on the first substrate being located within a grid formed by an orthographic projection of the black matrix on the first substrate,
• wherein the black matrix comprises N columns of first sub-regions and M columns of second sub-regions, an actual width of each column of the first sub-regions along a row direction of the black matrix is a1, an actual width of each column of the second sub-regions along the row direction of the black matrix is a2;
• a design width of each column of sub-regions of the black matrix along the row direction of the black matrix is a,
• wherein the pixel electrodes comprise N columns of first pixel electrodes in one-to-one correspondence with N columns of the first sub-regions and M columns of second pixel electrodes in one-to-one correspondence with M columns of the second sub-regions, a width of each column of the first pixel electrodes along the row direction of the black matrix is A1, a width of each column of the second pixel electrodes along the row direction of the black matrix is A2,
• wherein N, M, A1, A2, a1, a2 and a meet equation (1) and equation (2):
• N
• ⁡
• (
• a
• -
• a
• 1
• )
• M
• =
• (
• A
• 2
• +
• a
• 2
• )
• -
• (
• A
• 1
• +
• a
• 1
• )
• ;
• equation
• ⁢
• ⁢
• (
• 1
• )
• 
• A
• 1
• A
• 1
• +
• a
• 1
• -
• A
• 2
• A
• 2
• +
• a
• 2
• 
• ≤
• c
• ;
• equation
• ⁢
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• 2
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• wherein N and M are positive integers, A1, A2, a1, a2, a and c are positive numbers, a1<a, c is a first preset value, wherein at least two columns of the second pixel electrodes are adjacent to each other.

A driving method for a display panel, the display panel comprising:

• a first substrate and a second substrate arranged opposite to each other;
• a black matrix located at a side of the first substrate facing the second substrate or located at a side of the second substrate facing the first substrate;
• and
• a plurality of pixel electrodes arranged in an array located at the side of the first substrate facing the second substrate, an orthographic projection of the pixel electrode on the first substrate being located within a grid formed by an orthographic projection of the black matrix on the first substrate,
• wherein the black matrix comprises N columns of first sub-regions and M columns of second sub-regions, an actual width of each column of the first sub-regions along a row direction of the black matrix is a1, an actual width of each column of the second sub-regions along the row direction of the black matrix is a2;
• a design width of each column of sub-regions of the black matrix along the row direction of the black matrix is a,
• wherein the pixel electrodes comprise N columns of first pixel electrodes in one-to-one correspondence with N columns of the first sub-regions and M columns of second pixel electrodes in one-to-one correspondence with M columns of the second sub-regions, a width of each column of the first pixel electrodes along the row direction of the black matrix is A1, a width of each column of the second pixel electrodes along the row direction of the black matrix is A2,
• wherein N, M, A1, A2, a1, a2 and a meet equation (1) and equation (2):
• N
• ⁡
• (
• a
• -
• a
• 1
• )
• M
• =
• (
• A
• 2
• +
• a
• 2
• )
• -
• (
• A
• 1
• +
• a
• 1
• )
• ;
• equation
• ⁢
• ⁢
• (
• 1
• )
• 
• A
• 1
• A
• 1
• +
• a
• 1
• -
• A
• 2
• A
• 2
• +
• a
• 2
• 
• ≤
• c
• ;
• equation
• ⁢
• ⁢
• (
• 2
• )
• wherein N and M are positive integers, A1, A2, a1, a2, a and c are positive numbers, a1<a, c is a first preset value,
• wherein the method comprises:
• within display time of one frame, applying a first voltage to the first pixel electrodes, applying a second voltage to the second pixel electrodes, and applying a common voltage to a common electrode;
• wherein when an aperture ratio of a pixel unit where the first pixel electrode locates is greater than an aperture ratio of a pixel unit where the second pixel electrode locates, and an absolute value of a difference between the two is greater than a second preset value, an absolute value of a difference between the first voltage and the common voltage is set to be less than an absolute value of a difference between the second voltage and the common voltage;
• when an aperture ratio of a pixel unit where the first pixel electrode locates is less than an aperture ratio of a pixel unit where the second pixel electrode locates, and an absolute value of a difference between the two is greater than a second preset value, an absolute value of a difference between the first voltage and the common voltage is set to be greater than an absolute value of a difference between the second voltage and the common voltage.