CN111640394B - Display driving method of display panel and display device - Google Patents
Display driving method of display panel and display device Download PDFInfo
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- CN111640394B CN111640394B CN201910157153.XA CN201910157153A CN111640394B CN 111640394 B CN111640394 B CN 111640394B CN 201910157153 A CN201910157153 A CN 201910157153A CN 111640394 B CN111640394 B CN 111640394B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
Abstract
The embodiment of the invention discloses a display driving method of a display panel and a display device. The method comprises the following steps: acquiring a pre-display gray scale of each sub-pixel unit of a display panel; determining an actual display gray scale according to the pre-display gray scale; when | a (M, n) -a (M +1, n +1) | ≦ M, and | a (M, n) -a (M, n +1) | ≧ K, and | a (M +1, n +1) -a (M +1, n)) | ≧ K, a '(M, n) ═ a (M, n), a' (M +1, n) ═ b ═ a (M, n), a '(M +1, n +1) ═ c ═ a (M +1, n +1), a' (M, n +1) ═ d ═ a (M +1, n + 1); and/or when | a (p, q) -a (p-1, q +1) | ≦ M, and | a (p, q) -a (p, q +1) | ≧ K, and | a (p-1, q +1) -a (p-1, q) | ≧ K, a '(p, q) ═ e a (p, q), a' (p-1, q) ═ f × a (p, q), a '(p-1, q +1) ═ g ═ a (p-1, q +1), a' (p, q +1) × K ≧ a (p-1, q + 1); and driving each sub-pixel unit to display the actual display gray scale. The invention eliminates the problem of wire breakage of the display panel and improves the display quality of the display panel.
Description
Technical Field
Embodiments of the present invention relate to display technologies, and in particular, to a display driving method of a display panel and a display device.
Background
An Organic Light Emitting Diode (OLED) display panel is a self-luminous display panel, and the OLED display panel is increasingly applied to various high-performance display fields due to its advantages of lightness, thinness, high brightness, low power consumption, wide viewing angle, high response speed, and wide temperature range.
With the development of the OLED display technology, the display performance requirement of a user on the OLED display panel is higher and higher, fig. 1 is a schematic diagram of oblique lines, fig. 2 is an enlarged diagram of oblique lines displayed by the display panel, and referring to fig. 1 and fig. 2, when the oblique lines are displayed by the conventional OLED display panel, the problem of line break shown in fig. 2 exists, that is, the displayed oblique lines are discontinuous, which affects the user experience.
Disclosure of Invention
The invention provides a display driving method and a display device of a display panel, which are used for eliminating the problem of wire breakage of the display panel and improving the display quality of the display panel.
In a first aspect, an embodiment of the present invention provides a display driving method for a display panel, where the method includes:
the display panel comprises a plurality of pixel units arranged in an array, wherein each pixel unit comprises sub-pixel units of at least three colors;
the method comprises the following steps:
acquiring a pre-display gray scale of each sub-pixel unit of a display panel;
determining an actual display gray scale according to the pre-display gray scale; when a (M, n) ≠ 0, a (M +1, n +1) ≠ 0, | a (M, n) -a (M +1, n +1) | ≦ M, and | a (M, n) -a (M, n +1) | ≧ K, and | a (M +1, n +1) -a (M +1, n)) | ≧ K, a '(M, n) ═ a (M, n), a' (M +1, n) ═ b ═ a (M, n), a '(M +1, n +1) ═ c ═ a (M +1, n +1), a' (M, n +1) ═ d ═ a (M +1, n + 1); and/or when a (p, q) ≠ 0, a (p-1, q +1) ≠ 0, | a (p, q) -a (p-1, q +1) | ≦ M, and | a (p, q) -a (p, q +1) | ≧ K, and | a (p-1, q +1) -a (p-1, q) | ≧ K, a '(p, q) ═ e ═ a (p, q), a' (p-1, q) ═ f ═ a (p, q), a '(p-1, q +1) > g ═ a (p-1, q +1), a' (p, q +1) ═ K ═ a (p-1, q + 1);
wherein A (M, n) is the pre-display gray scale of the sub-pixel unit of any color in the nth pixel unit in the mth row, A '(M, n) is the actual display gray scale of the sub-pixel unit of any color in the nth pixel unit in the mth row, A (p, q) is the pre-display gray scale of the sub-pixel unit of any color in the qth pixel unit in the pth row, A' (p, q) is the actual display gray scale of the sub-pixel unit of any color in the qth pixel unit in the pth row, and 0 < a is less than or equal to 1, 0 < b is less than 1, 0 < c is less than or equal to 1, 0 < d is less than 1, 0 < e is less than or equal to 1, 0 < f is less than 1, 0 < g is less than or equal to 1, 0 < K is less than or equal to 0, K, M, n and q are positive integers, p is greater than or equal to 2, and M is less than K;
and driving each sub-pixel unit to display the actual display gray scale.
Optionally, each pixel unit includes a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit;
the first sub-pixel units and the second sub-pixel units are sequentially arranged along the row direction, and the geometric center of the third sub-pixel unit is positioned between the geometric center of the first sub-pixel unit and the geometric center of the second sub-pixel unit; and the connecting line of the geometric centers of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit is a triangle.
Optionally, in the odd-numbered columns, in the column direction, the third sub-pixel unit in the ith pixel unit is located on one side, adjacent to the (i +1) -th pixel unit, of the first sub-pixel unit and the second sub-pixel unit, and in the even-numbered columns, the third sub-pixel unit in the ith pixel unit is located on one side, away from the (i +1) -th pixel unit, of the first sub-pixel unit and the second sub-pixel unit, wherein i is a positive integer.
Optionally, when a (m, n) is a pre-display gray scale of a first sub-pixel unit or a second sub-pixel unit in the nth row of the mth row, n is an odd number;
and when A (m, n) is the pre-display gray scale of the third sub-pixel unit in the nth row and column of the mth row, n is an even number.
Optionally, when a (p, q) is a pre-display gray scale of a first sub-pixel unit or a second sub-pixel unit in a p-th row and a q-th column of pixel units, q is an even number;
and when A (p, q) is the pre-display gray scale of the third sub-pixel unit in the p-th row and q-th column of pixel units, q is an odd number.
Optionally, in the even-numbered columns along the column direction, the third sub-pixel unit in the ith pixel unit is located on one side of the first sub-pixel unit and the second sub-pixel unit, which are adjacent to the (i +1) -th pixel unit, and in the odd-numbered columns, the third sub-pixel unit in the ith pixel unit is located on one side of the first sub-pixel unit and the second sub-pixel unit, which are far away from the (i +1) -th pixel unit, where i is a positive integer.
Optionally, when a (m, n) is a pre-display gray scale of the first sub-pixel unit or the second sub-pixel unit in the nth row of the mth row, n is an even number;
and when A (m, n) is the pre-display gray scale of the third sub-pixel unit in the mth row and nth column of pixel units, n is an odd number.
Optionally, when a (p, q) is a pre-display gray scale of a first sub-pixel unit or a second sub-pixel unit in a p-th row and a q-th column of pixel units, q is an odd number;
and when A (p, q) is the pre-display gray scale of the third sub-pixel unit in the pixel unit of the p-th row and the q-th column, q is an even number.
Alternatively, a > b, c > d, e > f, and g > k.
In a second aspect, an embodiment of the present invention further provides a display device, where the display device includes:
the display panel and the display driving chip;
the display panel comprises a plurality of pixel units arranged in an array, wherein each pixel unit comprises sub-pixel units of at least three colors;
the display driving chip drives the display panel to emit light by adopting the display driving method of any embodiment of the invention.
According to the driving method provided by the embodiment of the invention, when the oblique line is displayed, the actual display gray scale of the color sub-pixel unit on the oblique line and the actual display gray scale of the color sub-pixel unit adjacent to the color sub-pixel unit on the oblique line are adjusted according to the pre-display gray scale of the sub-pixel unit of the same color on the oblique line, so that the adjacent sub-pixel unit of the color can fill the gap between the sub-pixel units on the oblique line, namely, the broken line is compensated, the broken line problem of the display panel is eliminated, and the display quality of the display panel is improved.
Drawings
FIG. 1 is a schematic diagram of oblique lines;
FIG. 2 is an enlarged view of a diagonal line of a display panel;
FIG. 3 is a schematic diagram of a display panel according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a display driving method of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another display panel according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another display panel according to an embodiment of the present invention;
FIG. 7 is a diagonal diagram corresponding to the actual display gray level after compensation according to an embodiment of the present invention;
FIG. 8 is an enlarged view of the actual display provided by an embodiment of the present invention;
fig. 9 is a schematic view of a display panel according to another embodiment of the present invention;
fig. 10 is a schematic diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Referring to fig. 3 and 4, the display panel includes a plurality of pixel units 10 arranged in an array, and each pixel unit 10 includes sub-pixel units of at least three colors.
The method comprises the following steps:
and step 110, acquiring a pre-display gray scale of each sub-pixel unit of the display panel.
The pre-display gray scale is the display gray scale corresponding to the sub-pixel unit in the next display picture, i.e. the gray scale to be displayed by the sub-pixel unit.
And step 120, determining an actual display gray scale according to the pre-display gray scale.
When a (M, n) ≠ 0, a (M +1, n +1) ≠ 0, | a (M, n) -a (M +1, n +1) | ≦ M, and | a (M, n) -a (M, n +1) | ≧ K, and | a (M +1, n +1) -a (M +1, n)) | ≧ K, a '(M, n) ═ a (M, n), a' (M +1, n) ═ b ═ a (M, n), a '(M +1, n +1) ═ c ═ a (M +1, n +1), a' (M, n +1) ═ d ═ a (M +1, n + 1); and/or when a (p, q) ≠ 0, a (p-1, q +1) ≠ 0, | a (p, q) -a (p-1, q +1) | ≦ M, and | a (p, q) -a (p, q +1) | ≧ K, and | a (p-1, q +1) -a (p-1, q) | ≧ K, a '(p, q) ═ e ═ a (p, q), a' (p-1, q) ═ f ═ a (p, q), a '(p-1, q +1) > g ═ a (p-1, q +1), a' (p, q +1) ═ K ═ a (p-1, q + 1);
wherein A (M, n) is the pre-display gray scale of the sub-pixel unit of any color in the nth pixel unit in the mth row, A '(M, n) is the actual display gray scale of the sub-pixel unit of any color in the nth pixel unit in the mth row, A (p, q) is the pre-display gray scale of the sub-pixel unit of any color in the qth pixel unit in the pth row, A' (p, q) is the actual display gray scale of the sub-pixel unit of any color in the qth pixel unit in the pth row, and 0 < a is less than or equal to 1, 0 < b is less than 1, 0 < c is less than or equal to 1, 0 < d is less than 1, 0 < e is less than or equal to 1, 0 < f is less than 1, 0 < g is less than or equal to 1, 0 < K is less than or equal to 0, K, M, n and q are positive integers, p is greater than or equal to 2, and M is less than K.
The actual display gray scale is the display gray scale actually input to the sub-pixel unit when the next display screen is displayed. A (m +1, n +1) is the pre-display gray scale of any color sub-pixel unit in the (m +1) th row and (n +1) th column of pixel units in the (m +1) th row, and A' (m +1, n +1) is the corresponding actual display gray scale. A (m +1, n) is the pre-display gray scale of any color sub-pixel unit in the nth row pixel unit in the m +1 th row pixel unit, and A' (m +1, n) is the corresponding actual display gray scale. A (m, n +1) is the pre-display gray scale of any color sub-pixel unit in the mth row and n +1 column of pixel units, and A' (m, n +1) is the corresponding actual display gray scale. A (m, n), A (m +1, n +1), A (m, n +1) A (m +1, n) are the pre-display gray levels of the sub-pixel units of the same color.
Where M is a small number, | a (M, n) -a (M +1, n +1) | ≦ M, a (M, n) is less different from a (M +1, n +1), e.g., a (M, n) ═ a (M +1, n +1) when M is 0. K is a numerical value with a larger value, when | A (m, n) -A (m, n +1) | is larger than or equal to K, and | A (m +1, n +1) -A (m +1, n)) | is larger than or equal to K, A (m, n +1) is greatly different from A (m, n), A (m +1, n) is greatly different from A (m +1, n +1), the panel displays a diagonal line formed by connecting A (m, n) and A (m +1, n +1), and A (m, n) and A (m +1, n +1) are pre-display gray scales corresponding to the sub-pixel units on the diagonal line. For the sub-pixel units of the same color, when the display gray scale a (m, n +1) adjacent to a (m, n) has a large difference and the pre-display gray scale a (m +1, n)) adjacent to a (m +1, n +1) has a large difference, the (m, n) -th sub-pixel unit and the (m +1, n +1) -th sub-pixel unit have a certain distance, so that the broken line can be easily distinguished visually when the oblique line is displayed.
For example, referring to fig. 3, taking the 4 × 4 pixel unit array as an example, when the second sub-pixel unit 12 is used to display the second oblique line 22, the pre-display gray scales of the two second sub-pixel units 12 on the second oblique line 22 are a (1,1) and a (2,2), respectively, and since the (1,1) th second sub-pixel unit 12 and the (2,2) th second sub-pixel unit 12 have a certain distance, the broken line can be easily distinguished visually when the oblique line is displayed.
Specifically, by setting a '(m, n) ═ a (m, n), a' (m +1, n) ═ b × a (m, n), a '(m +1, n +1) ═ c × a (m +1, n +1), a' (m, n +1) ═ d × a (m +1, n +1), the difference between a '(m +1, n) and a' (m, n) is reduced, and the difference between a '(m, n +1) and a' (m +1, n +1) is reduced, so that the (m +1, n) th and (m, n +1) th sub-pixel units of the same color when oblique lines are displayed compensate for the gaps between the (m, n) th and (m +1, n +1) th sub-pixel units of the same color when oblique lines are displayed, in a manner that oblique lines are continuous straight lines.
When A (p, q) ≠ 0, A (p-1, q +1) ≠ 0, | A (p, q) -A (p-1, q +1) | is less than M, and | A (p, q) -A (p, q +1) | is not less than K, and | A (p-1, q +1) -A (p-1, q) | is not less than K, A (p, q) and A (p-1, q +1) are pre-display gray scales corresponding to sub-pixel units on the oblique line. For the sub-pixel units of the same color, when the display gray scale A (p-1, q +1) adjacent to A (p, q) has a large difference and the pre-display gray scale A (p-1, q) adjacent to A (p-1, q +1) has a large difference, the broken line is easily distinguished visually when the oblique line is displayed because the (p, q) th pixel unit has a certain distance from the (p-1, q +1) th sub-pixel unit.
For example, referring to fig. 3, when the second sub-pixel unit 12 is used to display the first oblique line 21, the pre-display gray scales of the two second sub-pixel units 12 on the first oblique line 21 are a (2,2) and a (1,3), respectively, and since the (2,2) th second sub-pixel unit 12 has a certain distance from the (1,3) th second sub-pixel unit 12, the broken line is easily distinguished visually when the oblique line is displayed.
By setting a '(p, q) ═ e × a (p, q), a' (p-1, q) ═ f × a (p, q), a '(p-1, q +1) ═ g × a (p-1, q +1), a' (p, q +1) ═ k × a (p-1, q +1), the difference between a '(p-1, q) and a' (p, q) is reduced, and the difference between a '(p, q +1) and a' (p-1, q +1) is reduced, so that the (p, q +1) th and (p-1, q) th sub-pixel units of the same color compensate for the gap between the (p, q) th and (p-1, q +1) th sub-pixel units in the oblique line display to be a continuous straight line.
And step 130, driving each sub-pixel unit to display the actual display gray scale.
In the driving method provided in this embodiment, when the oblique line is displayed, the actual display gray scale of the color sub-pixel unit on the oblique line and the actual display gray scale of the color sub-pixel unit adjacent to the color sub-pixel unit on the oblique line are adjusted according to the pre-display gray scale of the sub-pixel unit of the same color on the oblique line, so that the adjacent color sub-pixel unit can fill the gap between the sub-pixel units on the oblique line, that is, the broken line is compensated, the problem of broken line of the display panel is solved, and the display quality of the display panel is improved.
Optionally, a > b, c > d, e > f, g > k, to avoid jagged edges when displaying straight lines.
Fig. 5 is a schematic diagram of another display panel according to an embodiment of the present invention. Alternatively, referring to fig. 3 and 5, each pixel unit 110 includes a first sub-pixel unit 11, a second sub-pixel unit 12, and a third sub-pixel unit 13; along the row direction X, the first sub-pixel unit 11 and the second sub-pixel unit 12 are sequentially arranged, and the geometric center of the third sub-pixel unit 13 is located between the geometric center of the first sub-pixel unit 11 and the geometric center of the second sub-pixel unit 12; and the connecting line of the geometric centers of the first sub-pixel unit 11, the second sub-pixel unit 12 and the third sub-pixel unit 13 is a triangle.
Specifically, the first sub-pixel unit 11, the second sub-pixel unit 12 and the third sub-pixel unit 13 are arranged in a triangular shape, when oblique lines are displayed, the adjacent sub-pixel units of the same color on the oblique lines are arranged in a step shape, so that line breakage is more obvious, and by adjusting the actual display gray scale of the adjacent sub-pixel units of the color on the oblique lines and on the two sides of the oblique lines, the filling between the adjacent sub-pixel units on the oblique lines can be performed, the line breakage is avoided, and the display quality is improved.
It should be noted that, in the present embodiment, the rows and the columns are two relative concepts, the row direction and the column direction only indicate two directions intersecting with each other, the rows are not limited to the horizontal direction, and the columns are not limited to the vertical direction. Exemplary row direction X in fig. 3 refers to the horizontal direction and column direction Y refers to the vertical direction, and row direction X in fig. 5 refers to the vertical direction and column direction Y refers to the horizontal direction. In addition, the origin of coordinates O in fig. 3 is located at the upper left corner, and the origin of coordinates in fig. 5 is located at the lower left corner, which is not a limitation of the present invention, and the origin of coordinates may be located at other positions in other embodiments.
Optionally, referring to fig. 3 and 5, in an odd column along the column direction Y, the third sub-pixel unit 13 in the ith pixel unit is located on one side of the first sub-pixel unit 11 and the second sub-pixel unit 12 adjacent to the (i +1) th pixel unit, and in an even column, the third sub-pixel unit in the ith pixel unit is located on one side of the first sub-pixel unit and the second sub-pixel unit away from the (i +1) th pixel unit, where i is a positive integer.
When A (m, n) is the pre-display gray scale of the first sub-pixel unit or the second sub-pixel unit in the nth row and line of the mth row, n is an odd number, and when A (m, n) is the pre-display gray scale of the third sub-pixel unit in the nth row and line of the mth row, n is an even number.
For example, referring to the second oblique line 22 in fig. 3, the distance between the first sub-pixel unit 11 in the odd-numbered column (nth column, n is an odd number) and the first sub-pixel unit 11 in the even-numbered column (n +1 th column, n is an odd number) on the second oblique line 22 is the largest, and the distance between the second sub-pixel unit 12 in the odd-numbered column (nth column, n is an odd number) and the second sub-pixel unit 12 in the even-numbered column (n +1 th column, n is an odd number) on the second oblique line 22 is the largest, at this time, the line breaking phenomenon is more obvious, and the line breaking can be effectively avoided by adjusting the actual display gray scale.
Referring to the fourth oblique line 24 in fig. 3, the distance between the third sub-pixel unit 13 in the even-numbered column (the nth column, n is an even number) and the third sub-pixel unit 13 in the odd-numbered column (the n +1 th column, n is an even number) adjacent to the fourth oblique line 24 is the largest, and at this time, the line breaking phenomenon is more obvious, and the line breaking can be effectively avoided by adjusting the actual display gray scale.
Optionally, when a (p, q) is a pre-display gray scale of a first sub-pixel unit or a second sub-pixel unit in a p-th row and a q-th column of pixel units, q is an even number; and when A (p, q) is the pre-display gray scale of the third sub-pixel unit in the p-th row and q-th column of pixel units, q is an odd number.
Specifically, referring to the first oblique line 21 in fig. 3, the distance between the first sub-pixel unit 11 in the even-numbered column (the nth column, n is an even number) and the first sub-pixel unit 11 in the odd-numbered column (the n +1 th column, n is an even number) adjacent to the first oblique line 21 is the largest, and the distance between the second sub-pixel unit 12 in the even-numbered column (the nth column, n is an even number) and the second sub-pixel unit 12 in the odd-numbered column (the n +1 th column, n is an even number) adjacent to the first oblique line 21 is the largest, at this time, the line break phenomenon is more obvious, and the line break can be effectively avoided by adjusting the actual display gray scale.
Referring to the third oblique line 23 in fig. 3, the distance between the third sub-pixel unit 13 in the odd-numbered column (the nth column, n is an odd number) and the third sub-pixel unit 13 in the even-numbered column (the n +1 th column, n is an odd number) adjacent to the third oblique line 23 is the largest, and at this time, the line breaking phenomenon is more obvious, and the line breaking can be effectively avoided by adjusting the actual display gray scale.
Fig. 6 is a schematic diagram of another display panel according to an embodiment of the present invention, optionally, referring to fig. 6, along the column direction Y, in even columns, a third sub-pixel unit in an ith pixel unit is located on a side of the first sub-pixel unit and a side of the second sub-pixel unit adjacent to the (i +1) th pixel unit, and in odd columns, the third sub-pixel unit in the ith pixel unit is located on a side of the first sub-pixel unit and the second sub-pixel unit away from the (i +1) th pixel unit, where i is a positive integer.
When A (m, n) is the pre-display gray scale of the first sub-pixel unit or the second sub-pixel unit in the nth row and line of the mth row, n is an even number, and when A (m, n) is the pre-display gray scale of the third sub-pixel unit in the nth row and line of the mth row, n is an odd number.
When A (p, q) is the pre-display gray scale of the first sub-pixel unit or the second sub-pixel unit in the p-th row and q-th column of pixel units, q is an odd number, and when A (p, q) is the pre-display gray scale of the third sub-pixel unit in the p-th row and q-th column of pixel units, q is an even number.
With the arrangement, gaps among the first sub-pixel unit 11, the second sub-pixel unit 12 and the third sub-pixel unit 13 with the maximum distance on the oblique line can be filled, the position where the disconnection is most likely to occur is compensated, and the disconnection can be effectively eliminated.
Fig. 7 is a diagonal diagram corresponding to an actual display gray level after compensation according to an embodiment of the present invention, and fig. 8 is an enlarged view of an actual display effect according to an embodiment of the present invention. Referring to fig. 7 and 8, the straight line displayed after the solution of the present embodiment is adopted is relatively continuous, so that the problem of wire breakage can be effectively overcome.
Fig. 9 is a schematic diagram of a further display panel according to an embodiment of the present invention, and optionally, referring to fig. 9, the first sub-pixel unit 11 includes at least one first sub-pixel block, the second sub-pixel unit 12 includes at least one second sub-pixel block, and the third sub-pixel unit 13 includes at least one second sub-pixel block.
It should be noted that fig. 9 only shows the case where the second sub-pixel unit 12 includes two second sub-pixel blocks by way of example, and the present invention is not limited thereto, and in other embodiments, the first sub-pixel unit 11 and the third sub-pixel unit 13 may include two or more sub-pixel blocks.
Alternatively, the first sub-pixel unit 11, the second sub-pixel unit 12, and the third sub-pixel unit 13 may be any one of a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit, and exemplarily, the first sub-pixel unit 11, the second sub-pixel unit 12, and the third sub-pixel unit 13 are a green sub-pixel unit, a red sub-pixel unit, and a blue sub-pixel unit, respectively, as long as the first sub-pixel unit 11, the second sub-pixel unit 12, and the third sub-pixel unit 13 are ensured to be different in color.
Fig. 10 is a schematic diagram of a display device according to an embodiment of the present invention, and referring to fig. 10, the display device 100 includes:
a display panel 200 and a display driving chip 300;
the display panel 200 includes a plurality of pixel units arranged in an array, each pixel unit including sub-pixel units of at least three colors;
the display driving chip 300 drives the display panel 200 to emit light by using any of the display driving methods of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A display driving method of a display panel, comprising:
the display panel comprises a plurality of pixel units arranged in an array, wherein each pixel unit comprises sub-pixel units of at least three colors;
the method comprises the following steps:
acquiring a pre-display gray scale of each sub-pixel unit of a display panel;
determining an actual display gray scale according to the pre-display gray scale; when a (M, n) ≠ 0, a (M +1, n +1) ≠ 0, | a (M, n) -a (M +1, n +1) | ≦ M, and | a (M, n) -a (M, n +1) | ≧ K, and | a (M +1, n +1) -a (M +1, n)) | ≧ K, a '(M, n) ═ a (M, n), a' (M +1, n) ═ b ═ a (M, n), a '(M +1, n +1) ═ c ═ a (M +1, n +1), a' (M, n +1) ═ d ═ a (M +1, n + 1); and/or when a (p, q) ≠ 0, a (p-1, q +1) ≠ 0, | a (p, q) -a (p-1, q +1) | ≦ M, and | a (p, q) -a (p, q +1) | ≧ K, and | a (p-1, q +1) -a (p-1, q) | ≧ K, a '(p, q) ═ e ═ a (p, q), a' (p-1, q) ═ f ═ a (p, q), a '(p-1, q +1) > g ═ a (p-1, q +1), a' (p, q +1) ═ K ═ a (p-1, q + 1);
wherein A (M, n) is the pre-display gray scale of the sub-pixel unit of any color in the nth pixel unit in the mth row, A '(M, n) is the actual display gray scale of the sub-pixel unit of any color in the nth pixel unit in the mth row, A (p, q) is the pre-display gray scale of the sub-pixel unit of any color in the qth pixel unit in the pth row, A' (p, q) is the actual display gray scale of the sub-pixel unit of any color in the qth pixel unit in the pth row, and 0 < a is less than or equal to 1, 0 < b is less than 1, 0 < c is less than or equal to 1, 0 < d is less than 1, 0 < e is less than or equal to 1, 0 < f is less than 1, 0 < g is less than or equal to 1, 0 < K is less than or equal to 0, K, M, n and q are positive integers, p is greater than or equal to 2, and M is less than K; a (m +1, n) is the pre-display gray scale of the sub-pixel unit of any color in the n-th row of the m +1, A ' (m +1, n) is the actual display gray scale of the sub-pixel unit of any color in the n-th row of the m +1, A (m, n +1) is the pre-display gray scale of the sub-pixel unit of any color in the n-th row of the n +1, A ' (m, n +1) is the actual display gray scale of the sub-pixel unit of any color in the n-th row of the m +1, A (m +1, n +1) is the pre-display gray scale of the sub-pixel unit of any color in the n + 1-th row of the m +1, A ' (m +1, n +1) is the actual display gray scale of the sub-pixel unit of any color in the n + 1-th row of the m +1, A (m, n), A (m +1, n +1), A (m, n +1), A (m +1, n), A ' (m +1, n +1), A ' (m, n +1) and A ' (m +1, n) all correspond to sub-pixel units of the same color; a (p-1, q) is the pre-display gray scale of the sub-pixel unit of any color in the p-1 th row and q column of pixel units, A '(p-1, q) is the actual display gray scale of the sub-pixel unit of any color in the p-1 th row and q column of pixel units, A (p-1, q +1) is the pre-display gray scale of the sub-pixel unit of any color in the p-1 th row and q +1 column of pixel units, A' (p-1, q +1) is the actual display gray scale of the sub-pixel unit of any color in the p-1 th row and q +1 column of pixel units, A '(p, q +1) is the pre-display gray scale of the sub-pixel unit of any color in the p-1 th row and q +1 column of pixel units, A' (p, q +1) is the actual display gray scale of the sub-pixel unit of any color in the p-1 th row and q +1 column of pixel units, a (p, q), A (p-1, q +1), A (p, q +1) A '(p-1, q), A' (p-1, q +1), A '(p, q +1) and A' (p, q) all correspond to the same color sub-pixel unit;
and driving each sub-pixel unit to display the actual display gray scale.
2. The method of claim 1, wherein:
each pixel unit comprises a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit;
the first sub-pixel units and the second sub-pixel units are sequentially arranged along the row direction, and the geometric center of the third sub-pixel unit is positioned between the geometric center of the first sub-pixel unit and the geometric center of the second sub-pixel unit; and the connecting line of the geometric centers of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit is a triangle.
3. The method of claim 2, wherein:
in the odd-numbered columns, the third sub-pixel unit in the ith pixel unit is positioned on one side, adjacent to the (i +1) th pixel unit, of the first sub-pixel unit and the second sub-pixel unit, and in the even-numbered columns, the third sub-pixel unit in the ith pixel unit is positioned on one side, away from the (i +1) th pixel unit, of the first sub-pixel unit and the second sub-pixel unit, wherein i is a positive integer.
4. The method of claim 3, wherein:
a (m, n) is an odd number when the pre-display gray scale of the first sub-pixel unit or the second sub-pixel unit in the nth row pixel unit of the mth row is shown;
and when A (m, n) is the pre-display gray scale of the third sub-pixel unit in the nth row and column of the mth row, n is an even number.
5. The method of claim 3, wherein:
a (p, q) is an even number when the pre-display gray scale of the first sub-pixel unit or the second sub-pixel unit in the p row and q column pixel units is shown;
and when A (p, q) is the pre-display gray scale of the third sub-pixel unit in the p-th row and q-th column of pixel units, q is an odd number.
6. The method of claim 2, wherein:
in the even columns along the column direction, the third sub-pixel unit in the ith pixel unit is positioned on one side, adjacent to the (i +1) th pixel unit, of the first sub-pixel unit and the second sub-pixel unit, and in the odd columns, the third sub-pixel unit in the ith pixel unit is positioned on one side, away from the (i +1) th pixel unit, of the first sub-pixel unit and the second sub-pixel unit, wherein i is a positive integer.
7. The method of claim 6, wherein:
a (m, n) is an even number when the pre-display gray scale of the first sub-pixel unit or the second sub-pixel unit in the nth row pixel unit of the mth row is shown;
and when A (m, n) is the pre-display gray scale of the third sub-pixel unit in the mth row and nth column of pixel units, n is an odd number.
8. The method of claim 6, wherein:
a (p, q) is an odd number when the pre-display gray scale of the first sub-pixel unit or the second sub-pixel unit in the p-th row and q-th column of pixel units is shown;
and when A (p, q) is the pre-display gray scale of the third sub-pixel unit in the pixel unit of the p-th row and the q-th column, q is an even number.
9. The method of claim 1, wherein:
a > b, c > d, e > f and g > k.
10. A display device, comprising:
the display panel and the display driving chip;
the display panel comprises a plurality of pixel units arranged in an array, wherein each pixel unit comprises sub-pixel units of at least three colors;
the display driving chip drives the display panel to emit light by using the display driving method according to any one of claims 1 to 9.
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