Display substrate and display panel

Abstract

The present invention provides a display substrate and a display panel. The display substrate includes a plurality of pixel units; the pixel units include a first sub-pixel, two second sub-pixels, and a third sub-pixel; the first sub-pixel, the second sub-pixel, and the third sub-pixel are arranged along a first direction; the two second sub-pixels are arranged along a second direction; the pixel units are mirror-symmetrical about the first direction; the pixel units are mirror-symmetrical about the second direction; the two second sub-pixels are mirror-symmetrical about the first direction; the first sub-pixel and the third sub-pixel are respectively mirror-symmetrical about the first direction; the plurality of pixel units are arranged in an array along the first direction and the second direction, respectively; the first direction and the second direction form an angle greater than 0°. The display substrate can effectively improve or avoid defects such as horizontal lines being displayed too wide, vertical lines being displayed too narrow, and horizontal and vertical lines being displayed with severe graininess, thereby improving the display effect of the display substrate.

Description

Technical Field

[0001] The present invention belongs to the field of display technology, and particularly relates to a display substrate and a display panel. Background Art

[0002] With the development of display technology, people are pursuing higher and higher image quality on display screens. Currently, the pixel arrangement method usually adopts the borrowed color method (SPR). For example, in a pixel, the number of red sub-pixels and blue sub-pixels is half the number of green sub-pixels. When performing display testing, the display screen with this pixel arrangement adopts the single horizontal line interval display method and the single vertical line interval display method. Due to the arrangement of sub-pixels within the pixel and the shape of the sub-pixels, the display screen with this pixel arrangement method may cause defects such as horizontal lines being too wide, vertical lines being too narrow, and severe graininess in the horizontal and vertical lines. When the display screen with this pixel arrangement method is a low-resolution (PPI) display screen, these shortcomings will be magnified. Summary of the Invention

[0003] The present invention addresses the shortcomings of the aforementioned color-borrowing display screens at low resolutions and provides a display substrate and display panel. This display substrate can effectively improve or avoid defects such as excessively wide horizontal lines, excessively narrow vertical lines, and severe graininess in the horizontal and vertical lines displayed on the display substrate, thereby enhancing the display quality of the display substrate, particularly at low resolutions.

[0004] The present invention provides a display substrate comprising a plurality of pixel units;

[0005] The pixel unit includes a first sub-pixel, two second sub-pixels and a third sub-pixel;

[0006] The first sub-pixel, the second sub-pixel and the third sub-pixel are arranged along a first direction; the two second sub-pixels are arranged along a second direction;

[0007] The pixel unit is mirror-symmetrical with the first direction as the axis of symmetry; the pixel unit is mirror-symmetrical with the second direction as the axis of symmetry;

[0008] The two second sub-pixels are mirror-symmetrical with respect to the first direction as the axis of symmetry; the first sub-pixel and the third sub-pixel are respectively mirror-symmetrical with respect to the first direction as the axis of symmetry;

[0009] The plurality of pixel units are arranged in an array along the first direction and the second direction respectively;

[0010] The first direction and the second direction form an angle greater than 0°.

[0011] Optionally, in the pixel unit, two of the second sub-pixels, 1 / 2 of the first sub-pixels, and 1 / 2 of the third sub-pixels respectively constitute a pixel;

[0012] In the array of the pixel units, along the first direction, the first distance between the centers of the second sub-pixels in any two adjacent pixels is equal.

[0013] Optionally, in the array of pixel units, along the second direction, the second distances between centers of the second sub-pixels in any two adjacent pixels are equal.

[0014] Optionally, the first spacing is equal to the second spacing.

[0015] Optionally, in the array of pixel units, along the first direction, the third distances between centers of the first sub-pixels in any two adjacent pixel units are equal.

[0016] Optionally, in the array of pixel units, along the second direction, the fourth distances between centers of the first sub-pixels in any two adjacent pixel units are equal.

[0017] Optionally, the third interval is equal to the fourth interval.

[0018] Optionally, the shape of the first sub-pixel includes a triangle; the shape of the second sub-pixel includes a right-angled trapezoid; and the shape of the third sub-pixel includes a triangle;

[0019] The outer contour shape of the pixel unit includes an approximate rhombus;

[0020] One diagonal line of the rhombus extends along the first direction, and the other diagonal line of the rhombus extends along the second direction.

[0021] Optionally, the shape of the first sub-pixel includes a triangle; the shape of the second sub-pixel includes a rectangle; and the shape of the third sub-pixel includes a triangle;

[0022] The outer contour shape of the pixel unit includes an approximate rhombus;

[0023] One diagonal line of the rhombus extends along the first direction, and the other diagonal line of the rhombus extends along the second direction.

[0024] Optionally, the shape of the first sub-pixel further includes any one of a circle, an ellipse, a rectangle, and a polygon;

[0025] The shape of the second sub-pixel also includes any one of a circle, an ellipse, a rectangle, and a polygon;

[0026] The shape of the third sub-pixel also includes any one of a circle, an ellipse, a rectangle, and a polygon.

[0027] Optionally, the first sub-pixel includes a red sub-pixel;

[0028] The second sub-pixel includes a green sub-pixel;

[0029] The third sub-pixel includes a blue sub-pixel.

[0030] Optionally, in the pixel unit, a light-emitting area of the third sub-pixel is larger than a total light-emitting area of the two second sub-pixels;

[0031] A total light-emitting area of the two second sub-pixels is greater than a light-emitting area of the first sub-pixel.

[0032] Optionally, the system further comprises a substrate and a pixel defining layer disposed on the substrate, wherein the pixel defining layer has openings, and the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively located in different openings;

[0033] The two second sub-pixels in one pixel unit are located in the same opening;

[0034] Alternatively, the two second sub-pixels in one pixel unit are located in different openings.

[0035] The present invention also provides a display panel, comprising the above-mentioned display substrate.

[0036] Beneficial effects of the present invention: The display substrate provided by the present invention, through its pixel arrangement scheme, can effectively improve or avoid defects such as the horizontal lines of the display substrate being too wide, the vertical lines being too narrow, and the horizontal and vertical lines being severely grainy, thereby improving the display effect of the display substrate, especially the display effect of low-resolution display substrates is more significantly improved.

[0037] The display panel provided by the present invention improves and enhances the display effect of the display panel, especially improves and enhances the display effect of a low-resolution display panel, by adopting the above-mentioned display substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the display effect when the current display screen displays a single horizontal line interval;

[0039] Figure 2 This is a schematic diagram of the display effect when the current display screen displays a single vertical line interval;

[0040] Figure 3 A schematic diagram of an arrangement of pixel units provided by an embodiment of the present invention;

[0041] Figure 4 To adopt Figure 3 Schematic diagram of the arrangement of pixel units in a display substrate;

[0042] Figure 5 A schematic diagram of another arrangement of pixel units provided by an embodiment of the present invention;

[0043] Figure 6 To adopt Figure 5 Schematic diagram of the arrangement of pixel units in a display substrate;

[0044] Figure 7 Schematic diagram of another arrangement of pixel units in an embodiment of the present invention;

[0045] Figure 8 Schematic diagram of another arrangement of pixel units in an embodiment of the present invention;

[0046] Figure 9 Schematic diagram of another arrangement of pixel units in an embodiment of the present invention;

[0047] Figure 10 FIG. 4 is a schematic diagram of another arrangement of pixel units in an embodiment of the present invention.

[0048] The accompanying drawings are as follows:

[0049] 1. Pixel unit; 11. First sub-pixel; 12. Second sub-pixel; 13. Third sub-pixel; 10. Pixel; 14. Green sub-pixel; 15. Red sub-pixel; 16. Blue sub-pixel. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the technical solution of the present invention, a display substrate and a display panel of the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] like Figure 1 and Figure 2 As shown in the figure, the display effect diagrams of the display screen with the current color-borrowing pixel arrangement in the single horizontal line interval display mode and the single vertical line interval display mode are shown respectively. Figure 1 and Figure 2As can be seen in the figure, in the current color-borrowing pixel arrangement, two green sub-pixels 14, one red sub-pixel 15, and one blue sub-pixel 16 constitute two pixels 10. That is, two pixels 10 share one red sub-pixel 15 and one blue sub-pixel 16. Due to the sub-pixel arrangement and sub-pixel shape within the pixel, the horizontal lines displayed on the display screen are too wide and wavy when displaying in single horizontal line interval mode, resulting in a grainy effect. In the display screen's single vertical line interval mode, the vertical lines displayed are too narrow and wavy when displaying in single vertical line interval mode, resulting in a grainy effect. When the display screen using the current color-borrowing pixel arrangement is a low-resolution (PPI) display, these display defects will be magnified.

[0052] In order to solve the problems existing in the display screen with the above-mentioned color-borrowing pixel arrangement, an embodiment of the present invention provides a display substrate, such as Figure 3-Figure 6 As shown, it includes multiple pixel units 1; the pixel unit 1 includes a first sub-pixel 11, two second sub-pixels 12 and a third sub-pixel 13; the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are arranged along the first direction L1; the two second sub-pixels 12 are arranged along the second direction L2; the pixel unit 1 is mirror-symmetrical with the first direction L1 as the axis of symmetry; the pixel unit 1 is mirror-symmetrical with the second direction L2 as the axis of symmetry; the two second sub-pixels 12 are mirror-symmetrical with the first direction L1 as the axis of symmetry; the first sub-pixel 11 and the third sub-pixel 13 are respectively mirror-symmetrical with the first direction L1 as the axis of symmetry; the multiple pixel units 1 are arranged in an array along the first direction L1 and the second direction L2 respectively; the first direction L1 and the second direction L2 form an angle greater than 0°.

[0053] Among them, the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are all organic electroluminescent units (i.e., OLED units) or quantum dot light-emitting units (i.e., QLED units). Preferably, the first direction L1 and the second direction L2 form an angle of 90°. The display substrate with the above sub-pixel arrangement can effectively improve or avoid defects such as the horizontal lines of the display substrate being too wide, the vertical lines being too narrow, and the horizontal and vertical lines being severely grainy, thereby improving the display effect of the display substrate, especially for low-resolution display substrates.

[0054] Optionally, the first sub-pixel 11 includes a red sub-pixel; the second sub-pixel 12 includes a green sub-pixel; and the third sub-pixel 13 includes a blue sub-pixel.

[0055] Optionally, in the pixel unit 1, the light-emitting area of the third sub-pixel 13 is larger than the total light-emitting area of the two second sub-pixels 12; and the total light-emitting area of the two second sub-pixels 12 is larger than the light-emitting area of the first sub-pixel 11. This can better achieve different color display of the pixel unit 1.

[0056] Optionally, in the pixel unit 1, two second sub-pixels 12 respectively form a pixel 10 with 1 / 2 of the first sub-pixel 11 and 1 / 2 of the third sub-pixel 13; in the array of the pixel unit 1, along the first direction L1, the first spacing m1 between the centers of the second sub-pixels 12 in any two adjacent pixels 10 is equal. With such a setting, on the one hand, the shape and size of the luminous areas of any adjacent pixels 10 along the first direction L1 are the same, so that the luminous area and luminous brightness of any adjacent pixels 10 along the first direction L1 are the same, and then the luminous area and luminous brightness of any pixel 10 arranged along the first direction L1 are the same, and finally the display width of any display line along the first direction L1 is uniform; on the other hand, since the human eye is not sensitive to blue, the display brightness of the third sub-pixel 13 is basically invisible, and the luminous brightness of the green sub-pixel most typically represents the luminous brightness of a pixel 10. By making the first spacing m1 between the centers of the second sub-pixels 12 in any two adjacent pixels 10 equal, the second sub-pixels 12 along the first direction L1 can be evenly arranged, thereby avoiding the granularity of the display lines along the first direction L1.

[0057] Optionally, in the array of pixel units 1, along the second direction L2, the second spacing m2 between the centers of the second sub-pixels 12 in any two adjacent pixels 10 is equal. This arrangement enables the second sub-pixels 12 along the second direction L2 to be evenly arranged, thereby avoiding a grainy effect on the display lines along the second direction L2. Similarly, the arrangement of the pixel units 1 in this embodiment enables the shape and size of the luminous areas of any adjacent pixels 10 along the second direction L2 to be the same, thereby ensuring that the luminous areas and luminous brightness of any adjacent pixels 10 along the second direction L2 are the same. Furthermore, the luminous areas and luminous brightness of any pixels 10 arranged along the second direction L2 are the same, ultimately ensuring that the display width of any display line along the second direction L2 is uniform.

[0058] Optionally, the first spacing m1 is equal to the second spacing m2. This arrangement allows the second sub-pixels 12 arranged along the first direction L1 and the second direction L2 to have the same light-emitting region shape, light-emitting area, and light-emitting brightness. This also allows the pixels 10 arranged along the first direction L1 and the second direction L2 to have the same light-emitting region shape, light-emitting area, and light-emitting brightness. This further ensures that the display widths of the display lines along the first direction L1 and the second direction L2 are uniform, preventing horizontal lines from being too wide and vertical lines from being too narrow.

[0059] Optionally, in the array of pixel units 1, along the first direction L1, the third spacing m3 between the centers of the first sub-pixels 11 in any two adjacent pixel units 1 is equal. While the luminance of the green sub-pixel most typically represents the luminance of a pixel 10, the luminance of the red sub-pixel can also, to a certain extent, represent the luminance of a pixel 10. By making the third spacing m3 between the centers of the first sub-pixels 11 in any two adjacent pixel units 1 equal, the first sub-pixels 11 along the first direction L1 can be evenly arranged, thereby also avoiding, to a certain extent, the appearance of graininess in the displayed lines along the first direction L1.

[0060] Optionally, in the array of pixel units 1, along the second direction L2, the fourth distance m4 between the centers of the first sub-pixels 11 in any two adjacent pixel units 1 is equal. This arrangement enables the first sub-pixels 11 to be evenly arranged along the second direction L2, thereby also avoiding, to a certain extent, a grainy effect on the display lines along the second direction L2.

[0061] Optionally, the third spacing m3 is equal to the fourth spacing m4. With this arrangement, while ensuring that the second sub-pixels 12 arranged along the first direction L1 and the second direction L2 have the same shape, area, and brightness, the first sub-pixels 11 arranged along the first direction L1 and the second direction L2 can also have the same shape, area, and brightness. Since the brightness of a pixel 10 is primarily represented by the second sub-pixels 12 and the first sub-pixels 11, this arrangement further ensures that the shape, area, and brightness of the light-emitting regions of the pixels 10 arranged along the first direction L1 and the second direction L2 are all the same, thereby further ensuring that the width of the display lines along the first direction L1 and the second direction L2 are uniform, thereby avoiding the phenomenon of horizontal lines being too wide and vertical lines being too narrow.

[0062] Alternatively, as Figure 3 and Figure 4 As shown, the shape of the first sub-pixel 11 includes a triangle; the shape of the second sub-pixel 12 includes a right-angled trapezoid; the shape of the third sub-pixel 13 includes a triangle; the outer contour shape of the pixel unit 1 includes an approximate rhombus; one diagonal line of the rhombus extends along the first direction L1, and the other diagonal line of the rhombus extends along the second direction L2.

[0063] In the pixel unit 1, the waists of the two second sub-pixels 12, which serve as right-angled sides, are adjacent or joined; the outer contour of the pixel unit 1 is a square; and the longer bases of the two second sub-pixels 12 overlap with the diagonal of the square along the second direction L2. With this arrangement, along the first direction L1, the first spacing m1 between the centers of the second sub-pixels 12 in any two adjacent pixels 10 in the array of pixel units 1 is equal. With such a setting, on the one hand, the shape and size of the luminous areas of any adjacent pixels 10 along the first direction L1 are the same, so that the luminous area and luminous brightness of any adjacent pixels 10 along the first direction L1 are the same, and then the luminous area and luminous brightness of any pixel 10 arranged along the first direction L1 are the same, and finally the display width of any display line along the first direction L1 is uniform; on the other hand, since the human eye is not sensitive to blue, the display brightness of the third sub-pixel 13 is basically invisible, and the luminous brightness of the green sub-pixel most typically represents the luminous brightness of a pixel 10. By making the first spacing m1 between the centers of the second sub-pixels 12 in any two adjacent pixels 10 equal, the second sub-pixels 12 along the first direction L1 can be evenly arranged, thereby avoiding the granularity of the display lines along the first direction L1. Figure 4 In the array of pixel units 1, since the second spacing m2 between the centers of the second sub-pixels 12 in any two adjacent pixels 10 along the second direction L2 is not equal, the display lines along the second direction L2 will still have a grainy feeling, but the severity of the grainy feeling is much lower than that of the pixel units 10. Figure 1 and Figure 2 The pixel arrangement in .

[0064] Alternatively, as Figure 5 and Figure 6 As shown, the shape of the first sub-pixel 11 includes a triangle; the shape of the second sub-pixel 12 includes a rectangle; the shape of the third sub-pixel 13 includes a triangle; the outer contour shape of the pixel unit 1 includes an approximate rhombus; one diagonal line of the rhombus extends along the first direction L1, and the other diagonal line of the rhombus extends along the second direction L2.

[0065] In the pixel unit 1, the rectangular wide sides of the two second sub-pixels 12 are adjacent or joined; the outer contour of the pixel unit 1 is approximately square; and the rectangular long sides of the two second sub-pixels 12 overlap with the diagonal of the square along the second direction L2. With this arrangement, along the first direction L1, the first spacing m1 between the centers of the second sub-pixels 12 in any two adjacent pixels 10 in the array of pixel units 1 is equal. With this arrangement, on the one hand, the shape and size of the luminous areas of any adjacent pixels 10 along the first direction L1 are all the same, thereby making the luminous area and luminous brightness of any adjacent pixels 10 along the first direction L1 the same, and further making the luminous area and luminous brightness of any pixel 10 arranged along the first direction L1 the same, and ultimately making the display width of any display line along the first direction L1 uniform; on the other hand, since the human eye is not sensitive to blue, the display brightness of the third sub-pixel 13 is basically invisible, and the luminous brightness of the green sub-pixel most typically represents the luminous brightness of a pixel 10. By making the first spacing m1 between the centers of the second sub-pixels 12 in any two adjacent pixels 10 equal, the second sub-pixels 12 along the first direction L1 can be evenly arranged, thereby avoiding the appearance of graininess in the display lines along the first direction L1. Furthermore, Figure 6 In the array of pixel units 1, along the second direction L2, the second spacing m2 between the centers of the second sub-pixels 12 in any two adjacent pixels 10 is equal. This arrangement enables the second sub-pixels 12 to be evenly arranged along the second direction L2, thereby preventing graininess in the display lines along the second direction L2. Similarly, the arrangement of the pixel units 1 in this embodiment enables the luminous areas of any adjacent pixels 10 along the second direction L2 to be uniform in shape and size, thereby ensuring that the luminous areas and luminous brightness of any adjacent pixels 10 along the second direction L2 are uniform. Furthermore, the luminous areas and luminous brightness of any pixels 10 arranged along the second direction L2 are uniform, ultimately ensuring that the display width of any display line along the second direction L2 is uniform.

[0066] Figure 6 The pixel units 1 are arranged in the first and second spacings m1 and m2, and the first spacing m1 is equal to the second spacing m2, so that the shape of the luminous region, the luminous area and the luminous brightness of the second sub-pixels 12 arranged along the first direction L1 and the second direction L2 are the same, thereby making the shape of the luminous region, the luminous area and the luminous brightness of the pixels 10 arranged along the first direction L1 and the second direction L2 the same, and thus making the display width of the display lines along the first direction L1 and the second direction L2 uniform, avoiding the phenomenon that the horizontal lines are displayed too wide and the vertical lines are displayed too narrow.

[0067] Alternatively, as Figure 7-10As shown, the shape of the first sub-pixel 11 also includes any one of a circle, an ellipse, a rectangle, and a polygon; the shape of the second sub-pixel 12 also includes any one of a circle, an ellipse, a rectangle, and a polygon; the shape of the third sub-pixel 13 also includes any one of a circle, an ellipse, a rectangle, and a polygon.

[0068] Optionally, the display substrate further includes a substrate (not shown) and a pixel-defining layer (not shown) disposed on the substrate. The pixel-defining layer has openings (not shown), and the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are located in different openings. The two second sub-pixels 12 in a pixel unit 1 are located in the same opening. This arrangement effectively reduces the spacing between the two second sub-pixels 12 in the pixel unit 1, increases the aperture ratio of the pixel unit 1, and improves the lifespan of the display substrate.

[0069] Alternatively, the two second sub-pixels 12 in one pixel unit 1 may be located in different openings. This arrangement facilitates uniform distribution of the second sub-pixels 12 in the pixel units 1 distributed along the first direction L1 and along the second direction L2, thereby improving or avoiding the phenomenon of horizontal lines being too wide and vertical lines being too narrow, ensuring uniform width of the displayed lines in the pixel units 1 distributed along the first direction L1 and along the second direction L2, and avoiding the phenomenon of grainy display.

[0070] The display substrate provided in this embodiment, through its pixel arrangement scheme, can effectively improve or avoid defects such as horizontal lines on the display substrate being too wide, vertical lines being too narrow, and severe graininess in the horizontal and vertical lines, thereby improving the display effect of the display substrate, especially for low-resolution display substrates.

[0071] An embodiment of the present invention further provides a display panel, comprising the display substrate in the above embodiment.

[0072] By adopting the display substrate in the above embodiment, the display effect of the display panel is improved and enhanced, especially the display effect of a low-resolution display panel is improved and enhanced.

[0073] The display device provided by the present invention can be any product or component with a display function, such as an OLED panel, an OLED TV, a QLED panel, a QLED TV, a monitor, a mobile phone, a navigator, etc.

[0074] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will appreciate that various modifications and improvements can be made without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A display substrate comprising a plurality of pixel units; It is characterized by: The pixel unit includes a first sub-pixel, two second sub-pixels and a third sub-pixel; The first sub-pixel, the second sub-pixel and the third sub-pixel are arranged along a first direction; the two second sub-pixels are arranged along a second direction; The pixel unit is mirror-symmetrical with the first direction as the symmetry axis; The pixel unit is mirror-symmetrical with the second direction as the symmetry axis; The two second sub-pixels are mirror-symmetrical with respect to the first direction as the axis of symmetry; the first sub-pixel and the third sub-pixel are respectively mirror-symmetrical with respect to the first direction as the axis of symmetry; The plurality of pixel units are arranged in an array along the first direction and the second direction respectively; The first direction and the second direction form an angle greater than 0°; In the pixel unit, two of the second sub-pixels, 1 / 2 of the first sub-pixel, and 1 / 2 of the third sub-pixel respectively constitute a pixel; In the array of the pixel units, along the first direction, the first distance between the centers of the second sub-pixels in any two adjacent pixels is equal; In the array of the pixel units, along the second direction, the second distances between the centers of the second sub-pixels in any two adjacent pixels are equal; The first spacing is equal to the second spacing; The outer contour shape of the pixel unit includes an approximate rhombus; One diagonal line of the rhombus extends along the first direction, and another diagonal line of the rhombus extends along the second direction; The first sub-pixel includes a red sub-pixel; the second sub-pixel includes a green sub-pixel; and the third sub-pixel includes a blue sub-pixel; In the pixel unit, a light-emitting area of the third sub-pixel is larger than a total light-emitting area of the two second sub-pixels; The total light-emitting area of the two second sub-pixels is greater than the light-emitting area of the first sub-pixel; The shape of the first sub-pixel includes a triangle; the shape of the second sub-pixel includes a right-angled trapezoid; and the shape of the third sub-pixel includes a triangle; In the pixel unit, the waists of two second sub-pixels, which serve as right angles, are adjacent or connected; the outer contour of the pixel unit is a square; the longer bottom sides of the two second sub-pixels overlap with the diagonal of the square along the second direction; Alternatively, the shape of the first sub-pixel includes a triangle; the shape of the second sub-pixel includes a rectangle; the shape of the third sub-pixel includes a triangle; in the pixel unit, the wide sides of the rectangles of two second sub-pixels are adjacent or spliced together; the outer contour shape of the pixel unit is approximately a square; the long sides of the rectangles of the two second sub-pixels overlap with the diagonal of the square along the second direction.

2. The display substrate according to claim 1, wherein: In the array of the pixel units, along the first direction, the third distances between the centers of the first sub-pixels in any two adjacent pixel units are equal.

3. The display substrate according to claim 2, wherein: In the array of the pixel units, along the second direction, the fourth distances between the centers of the first sub-pixels in any two adjacent pixel units are equal.

4. The display substrate according to claim 3, wherein: The third interval is equal to the fourth interval.

5. The display substrate according to claim 1, wherein The device further includes a substrate and a pixel defining layer disposed on the substrate, wherein the pixel defining layer has openings, and the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively located in different openings; The two second sub-pixels in one pixel unit are located in the same opening; Alternatively, the two second sub-pixels in one pixel unit are located in different openings.

6. A display panel, characterized in that: The display substrate comprises the display substrate according to any one of claims 1 to 5.

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