CN113257882B

CN113257882B - Display substrate and display device

Info

Publication number: CN113257882B
Application number: CN202110760413.XA
Authority: CN
Inventors: 郝学光; 乔勇; 卢永春
Original assignee: BOE Technology Group Co Ltd; Beijing BOE Technology Development Co Ltd
Current assignee: BOE Technology Group Co Ltd; Beijing BOE Technology Development Co Ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-10-01
Anticipated expiration: 2041-07-06
Also published as: CN113257882A

Abstract

A display substrate and a display device. The display substrate comprises a plurality of first sub-pixel rows and a plurality of second sub-pixel rows; each first sub-pixel row comprises a plurality of first sub-pixels and a plurality of second sub-pixels which are alternately arranged along a first direction; each second sub-pixel row comprises a plurality of third sub-pixels arranged along the first direction; the plurality of first sub-pixel rows and the plurality of second sub-pixel rows are alternately arranged along a second direction, and the second direction is intersected with the first direction; the ith second sub-pixel row is located between the jth first sub-pixel row and the j +1 th first sub-pixel row in the second direction, and in the ith second sub-pixel row, the orthographic projection of the center of each third sub-pixel on the jth first sub-pixel row is located between the adjacent first sub-pixel and second sub-pixel. The display substrate can improve the pixel density and reduce the difficulty of a mask plate for forming sub-pixels.

Description

Display substrate and display device

Technical Field

The embodiment of the disclosure relates to a display substrate and a display device.

Background

With the development of display technology, people have higher and higher requirements for the display quality of display devices. The Organic Light Emitting Diode (OLED) display device has the advantages of high brightness, color saturation, lightness, thinness, wide viewing angle, wide color gamut, fast response speed, foldability, flexibility, high contrast ratio and the like, and can better meet the requirements of users, so the application range is more and more extensive. On the other hand, the resolution of Organic Light Emitting Diode (OLED) display devices is also increasingly required.

In an Organic Light Emitting Diode (OLED) display device, a pixel arrangement manner or a pixel arrangement structure has a large influence on display quality and resolution, and thus is one of important directions for research and improvement of various manufacturers.

Disclosure of Invention

The embodiment of the disclosure provides a display substrate and a display device. Because the plurality of first sub-pixel rows and the plurality of second sub-pixel rows are alternately arranged along the second direction, and in the ith second sub-pixel row, the orthographic projection of the center of each third sub-pixel on the jth first sub-pixel row is positioned between the adjacent first sub-pixel and second sub-pixel, the display substrate can fully utilize the space of the display substrate, the space utilization rate is improved, and the pixel density can be improved. On the other hand, the display substrate can also enable the distribution of the sub-pixels to be more uniform, and is beneficial to reducing the difficulty of a mask plate (such as an FMM) for forming the sub-pixels.

At least one embodiment of the present disclosure provides a display substrate, including: a plurality of first subpixel rows, each of the first subpixel rows including a plurality of first subpixels and a plurality of second subpixels alternately arranged in a first direction; and a plurality of second sub-pixel rows, each of the second sub-pixel rows including a plurality of third sub-pixels arranged in the first direction, the plurality of first sub-pixel rows and the plurality of second sub-pixel rows are alternately arranged along the second direction, the second direction intersects the first direction, the ith second sub-pixel row is located between the jth first sub-pixel row and the j +1 th first sub-pixel row in the second direction, in the ith second sub-pixel row, the orthographic projection of the center of each third sub-pixel on the jth first sub-pixel row is positioned between the adjacent first sub-pixel and the second sub-pixel, i and j are positive integers greater than or equal to 1, the first sub-pixel is configured to emit light of a first color, the second sub-pixel is configured to emit light of a second color, and the third sub-pixel is configured to emit light of a third color.

For example, in the display substrate provided in an embodiment of the present disclosure, a distance D1 between centers of two adjacent third sub-pixels in the ith second sub-pixel row is smaller than a shortest distance D2 between a center of one first sub-pixel in the jth first sub-pixel row and a center of one first sub-pixel in the (j + 1) th first sub-pixel row.

For example, in the display substrate provided in an embodiment of the present disclosure, a distance D1 between centers of two adjacent third sub-pixels in the ith second sub-pixel row is smaller than a shortest distance D3 between a center of one second sub-pixel in the jth first sub-pixel row and a center of one second sub-pixel in the (j + 1) th first sub-pixel row.

For example, in the display substrate provided in an embodiment of the present disclosure, a ratio a1 of the aperture ratio of the first sub-pixel and the aperture ratio of the second sub-pixel satisfies the following range:

1.15e (-0.25a) or more and A1 or less and 1.35e (-0.15a) or more, and 0.7 or more and A1 or less and 1,

wherein a is a ratio of the luminous efficiency of the first sub-pixel and the luminous efficiency of the second sub-pixel.

For example, in the display substrate provided in an embodiment of the present disclosure, a ratio a2 of the aperture ratio of the third sub-pixel to the aperture ratio of the second sub-pixel satisfies the following range:

26.00e < - > A2 is more than or equal to 26.7 b and less than or equal to 4.54e < -0.3b), and A2 is more than or equal to 0.79 and less than or equal to 1,

wherein b is a ratio of the luminous efficiency of the third sub-pixel to the luminous efficiency of the second sub-pixel.

1.25e (-0.25a) to A1 to 1.56e (-0.15a), and 0.56 to A1 to 0.75,

1.25e (-0.25a) to A1 to 1.56e (-0.15a), and 0.75 to A1 to 0.9,

750e (-0.7b) or more and 19.38e (-0.3b) or less of A2, and 0.70 or more and 0.83 or less of A2,

750e (-0.7b) or more and 19.38e (-0.3b) or less of A2, and 0.83 or more and 0.95 or less of A2,

2.79e < - > A1 is more than or equal to 2.25e < - > A1 is more than or equal to 2.79e < - > 0.25a, and A1 is more than or equal to 0.65 is more than or equal to 0.8,

2.79e < - > A1 is more than or equal to 2.25e < - > A1 is more than or equal to 2.79e < - > 0.25a, and A1 is more than or equal to 0.56 and is less than or equal to 0.65,

350000e (-0.7b) or more, A2 or more or less than 236e (-0.3b), and A2 or more than 0.70 or less than 0.85,

For example, in a display substrate provided in an embodiment of the present disclosure, a shape of an effective light emitting area of the first sub-pixel includes a rounded rectangle or a rounded square.

For example, in a display substrate provided in an embodiment of the present disclosure, a shape of an effective light emitting area of the second sub-pixel includes a rounded rectangle or a rounded square.

For example, in a display substrate provided in an embodiment of the present disclosure, a shape of an effective light emitting area of the third sub-pixel includes any one of a rounded rectangle, a rounded square, an olive, a hexagon, and an ellipse.

For example, in the display substrate provided in an embodiment of the present disclosure, in the second sub-pixel row, centers of the effective light emitting areas of all the third sub-pixels are located on a straight line extending along the first direction.

For example, in the display substrate provided by an embodiment of the present disclosure, in the jth first sub-pixel row, an orthogonal projection of a center of the effective light emitting area of each first sub-pixel on the ith second sub-pixel row is located on a midpoint of a connecting line of centers of the effective light emitting areas of two adjacent third sub-pixels.

For example, in the display substrate provided in an embodiment of the present disclosure, in the jth first sub-pixel row, a distance between a center of an effective light emitting area of each first sub-pixel and centers of effective light emitting areas of two adjacent third sub-pixels located in the ith second sub-pixel row is equal.

For example, in the display substrate provided by an embodiment of the present disclosure, in the jth first sub-pixel row, an orthogonal projection of a center of the effective light emitting area of each second sub-pixel on the ith second sub-pixel row is located on a midpoint of a connecting line of centers of the effective light emitting areas of two adjacent third sub-pixels.

For example, in the display substrate provided in an embodiment of the present disclosure, in the jth first sub-pixel row, a distance between a center of an effective light emitting area of each second sub-pixel and a center of an effective light emitting area of two adjacent third sub-pixels located in the ith second sub-pixel row is equal.

For example, in the display substrate provided by an embodiment of the present disclosure, the effective light emitting areas of two adjacent third sub-pixels in the first direction are arranged in a mirror symmetry manner, and the effective light emitting areas of two adjacent third sub-pixels in the second direction are arranged in a mirror image manner.

For example, the display substrate provided by an embodiment of the present disclosure further includes a substrate; and a pixel circuit layer, wherein the plurality of first sub-pixels, the plurality of second sub-pixels and the plurality of third sub-pixels are positioned on one side of the pixel circuit layer far away from the substrate, and the pixel circuit layer is configured to drive the plurality of first sub-pixels, the plurality of second sub-pixels and the plurality of third sub-pixels to emit light.

For example, in a display substrate provided in an embodiment of the present disclosure, the pixel circuit layer includes: a plurality of pixel driving units arranged in an array on a substrate and forming a plurality of pixel driving rows and a plurality of pixel driving columns, each of the pixel driving rows extending in the first direction, and each of the pixel driving columns extending in the second direction; a power supply line configured to supply a power supply signal to the pixel driving units in one of the pixel driving columns; a data line configured to supply a data signal to the pixel driving units in one of the pixel driving columns; and an initialization signal line configured to supply an initialization signal to the pixel driving units in one of the pixel driving rows.

For example, in the display substrate provided by an embodiment of the present disclosure, an orthographic projection of the effective light emitting area of the first sub-pixel on the substrate overlaps with an orthographic projection of the power line on the substrate in the first direction, and a width of an overlapping area of the effective light emitting area of the first sub-pixel and the power line in the first direction is substantially equal to a width of the power line in the first direction, and the orthographic projection of the effective light emitting area of the first sub-pixel on the substrate is spaced from the orthographic projection of the data line on the substrate.

For example, in the display substrate provided by an embodiment of the present disclosure, an orthogonal projection of the effective light emitting area of the second sub-pixel on the substrate overlaps with an orthogonal projection of the power line on the substrate, and the width of the overlapping area of the effective light emitting area of the second sub-pixel and the power line in the first direction is approximately equal to the width of the data line in the first direction, the orthographic projection of the effective light emitting area of the second sub-pixel on the substrate is spaced from the orthographic projection of the data line on the substrate, the orthographic projection of the effective light emitting area of the second sub-pixel on the substrate is overlapped with the orthographic projection of the initialization signal line on the substrate in the second direction, and the width of the overlapping area of the initialization signal line and the effective light emitting area of the second sub-pixel in the second direction is approximately equal to the width of the initialization signal line in the second direction.

For example, in a display substrate provided by an embodiment of the present disclosure, an orthographic projection of the effective light emitting area of the third sub-pixel on the substrate overlaps with an orthographic projection of the power line on the substrate in the first direction.

For example, in a display substrate provided by an embodiment of the present disclosure, an orthographic projection of the effective light emitting area of the second sub-pixel on the substrate overlaps with an orthographic projection of the power supply line on the substrate in the first direction, and an overlapping area of the effective light emitting area of the second sub-pixel and the power supply line in the first direction has a width substantially equal to a width of the power supply line in the first direction, an orthographic projection of the effective light emitting area of the second sub-pixel on the substrate overlaps with an orthographic projection of the data line on the substrate in the first direction, and an overlapping area of the effective light emitting area of the second sub-pixel and the data line has a width substantially equal to a width of the data line in the first direction, and an orthographic projection of the effective light emitting area of the second sub-pixel on the substrate overlaps with an orthographic projection of the initialization signal line on the substrate in the second direction And the width of the overlapping area of the initialization signal line and the effective light emitting area of the second sub-pixel in the second direction is approximately equal to the width of the initialization signal line in the second direction.

At least one embodiment of the present disclosure also provides a display device including the display substrate of any one of the above.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.

Fig. 1 is a schematic plan view of a display substrate according to an embodiment of the disclosure;

fig. 2A is a graph illustrating a relationship between an aperture ratio and a luminous efficiency ratio of a first sub-pixel and a second sub-pixel according to an embodiment of the disclosure;

fig. 2B is a relationship curve between the aperture ratio and the luminous efficiency ratio of the third sub-pixel and the second sub-pixel according to an embodiment of the disclosure;

fig. 3 is a schematic plan view of another display substrate according to an embodiment of the disclosure;

fig. 4 is a schematic plan view of another display substrate according to an embodiment of the disclosure;

fig. 5 is a schematic plan view of another display substrate according to an embodiment of the disclosure;

FIG. 6 is a schematic cross-sectional view taken along line AB in FIG. 5 of a display substrate according to an embodiment of the present disclosure;

fig. 7 is a schematic plan view of another display substrate according to an embodiment of the disclosure;

fig. 8 is a schematic plan view of another display substrate provided in an embodiment of the disclosure;

fig. 9 is a schematic plan view of another display substrate provided in an embodiment of the disclosure;

fig. 10 is a schematic plan view of another display substrate provided in an embodiment of the disclosure; and

fig. 11 is a schematic diagram of a display device according to an embodiment of the disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

In general, the resolution of a display device can be improved by reducing the size of pixels and reducing the pitch between pixels. However, the reduction in the size of the pixels and the pitch between the pixels requires higher and higher precision in the manufacturing process, which may result in an increase in difficulty in the manufacturing process and manufacturing cost of the display device. On the other hand, the sub-Pixel Rendering (SPR) technology can change the mode of simply defining a Pixel by using the difference of human eyes to the resolutions of sub-pixels with different colors, and the sub-pixels with insensitive colors at certain positions are shared among different pixels, so that the same Pixel resolution performance capability is realized by simulation with relatively less sub-pixels, thereby reducing the difficulty of the manufacturing process and the manufacturing cost.

The embodiment of the disclosure provides a display substrate and a display device. The display substrate comprises a plurality of first sub-pixel rows and a plurality of second sub-pixel rows; each first sub-pixel row comprises a plurality of first sub-pixels and a plurality of second sub-pixels which are alternately arranged along a first direction; each second sub-pixel row comprises a plurality of third sub-pixels arranged along the first direction; the plurality of first sub-pixel rows and the plurality of second sub-pixel rows are alternately arranged along a second direction, and the second direction is intersected with the first direction; the ith second sub-pixel row is positioned between the jth first sub-pixel row and the (j + 1) th first sub-pixel row in the second direction, in the ith second sub-pixel row, the orthographic projection of the center of each third sub-pixel on the jth first sub-pixel row is positioned between the adjacent first sub-pixel and second sub-pixel, and i and j are positive integers which are more than or equal to 1; the first sub-pixel is configured to emit light of a first color, the second sub-pixel is configured to emit light of a second color, and the third sub-pixel is configured to emit light of a third color.

In the display substrate provided by the embodiment of the disclosure, since the plurality of first sub-pixel rows and the plurality of second sub-pixel rows are alternately arranged along the second direction, and in the ith second sub-pixel row, an orthographic projection of the center of each third sub-pixel on the jth first sub-pixel row is located between the adjacent first sub-pixel and second sub-pixel, the display substrate can fully utilize the space of the display substrate, improve the space utilization rate, and thus can improve the pixel density. On the other hand, the display substrate can also enable the distribution of the sub-pixels to be more uniform, and is beneficial to reducing the difficulty of a mask plate (such as an FMM) for forming the sub-pixels.

Hereinafter, a display substrate and a display device provided in an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

An embodiment of the present disclosure provides a display substrate. Fig. 1 is a schematic plan view of a display substrate according to an embodiment of the disclosure; fig. 2A is a graph illustrating a relationship between an aperture ratio and a luminous efficiency ratio of a first sub-pixel and a second sub-pixel according to an embodiment of the disclosure; fig. 2B is a relationship curve between the aperture ratio and the luminous efficiency ratio of the third sub-pixel and the second sub-pixel according to an embodiment of the disclosure.

As shown in fig. 1, the display substrate 100 includes a substrate 110, a plurality of first subpixel rows 120, and a plurality of second subpixel rows 130; a plurality of first subpixel rows 120 and a plurality of second subpixel rows 130 are disposed on the base substrate 110. Each of the first subpixel rows 120 includes a plurality of first subpixels 141 and a plurality of second subpixels 142 alternately arranged in the first direction; each second subpixel row 130 includes a plurality of third subpixels 143 arranged in the first direction. The plurality of first subpixel rows 120 and the plurality of second subpixel rows 130 are alternately arranged along a second direction, which intersects the first direction, for example, the second direction is perpendicular to the first direction.

As shown in fig. 1, the ith second sub-pixel row 130 is located between the jth first sub-pixel row 120 and the j +1 th first sub-pixel row 120 in the second direction, in the ith second sub-pixel row 130, an orthogonal projection of the center of each third sub-pixel 143 on the jth first sub-pixel row 120 is located between the adjacent first sub-pixel 141 and second sub-pixel 142, i and j are positive integers greater than or equal to 1; the first sub-pixel 141 is configured to emit light of a first color, the second sub-pixel 142 is configured to emit light of a second color, and the third sub-pixel 143 is configured to emit light of a third color.

In the display substrate provided by the embodiment of the present disclosure, since the plurality of first sub-pixel rows and the plurality of second sub-pixel rows are alternately arranged along the second direction, and in the ith second sub-pixel row, an orthogonal projection of a center of each third sub-pixel on the jth first sub-pixel row is located between the adjacent first sub-pixel and second sub-pixel, the third sub-pixel can be arranged by using a gap between the first sub-pixel and the second sub-pixel. Therefore, the display substrate can fully utilize the space of the display substrate, improve the space utilization rate and further improve the pixel density. On the other hand, the display substrate can also enable sub-pixels to be distributed more uniformly, and is beneficial to reducing the manufacturing difficulty of a mask plate (such as a fine metal mask plate and FMM) for forming the sub-pixels.

For example, the first sub-pixel 141 is configured to emit red light, the second sub-pixel 142 is configured to emit blue light, and the third sub-pixel 143 is configured to emit green light. Of course, the embodiments of the present disclosure include, but are not limited to, the first sub-pixel 141, the second sub-pixel 142, and the third sub-pixel 143 may also be configured to emit light of other colors.

For example, the base substrate may be a transparent substrate, a flexible substrate, or a rigid substrate, including but not limited to these.

For example, a glass substrate, a plastic substrate, or a polyimide substrate can be used as the base substrate. Of course, the embodiments of the present disclosure include but are not limited thereto, and the substrate base plate may be made of other materials.

In some examples, as shown in fig. 1, a distance D1 between centers of two adjacent third subpixels in the ith second subpixel row is less than a shortest distance D2 between a center of one first subpixel in the jth first subpixel row and a center of one first subpixel in the jth +1 th first subpixel row. Therefore, the display substrate can further improve the pixel density.

In some examples, as shown in fig. 1, a distance D1 between centers of two adjacent third subpixels in the ith second subpixel row is less than a shortest distance D3 between a center of one second subpixel in the jth first subpixel row and a center of one second subpixel in the jth +1 th first subpixel row. Therefore, the display substrate can further improve the pixel density.

In some examples, as shown in fig. 1, the display substrate 100 may include a plurality of sub-pixel groups 210, each sub-pixel group 210 including one first sub-pixel 141, one second sub-pixel 142, and two third sub-pixels 143; in the sub-pixel group 210, the first sub-pixel 141 and the second sub-pixel 142 are located in the same first sub-pixel row 120 and adjacent to each other in the first direction; the two third sub-pixels 143 are respectively located in the two adjacent second sub-pixel rows 130. In the subpixel group 210, a central line of the first subpixel 141 and the second subpixel 142 crosses a central line of the two third subpixels 143.

For example, in one Pixel group 210, a sub-Pixel Rendering (SPR) technique may be adopted to make the first sub-Pixel 141 and the second sub-Pixel 142 respectively borrow two third sub-pixels 143, so as to simulate to form two pixels, thereby improving the Pixel resolution and reducing the difficulty of the manufacturing process and the manufacturing cost.

In some examples, as shown in fig. 1, a ratio a1 of the aperture ratio of the first subpixel 141 and the aperture ratio of the second subpixel 142 satisfies the following range:

where a is a ratio of the light emitting efficiency of the first sub-pixel 141 to the light emitting efficiency of the second sub-pixel 142, and e is a natural constant.

In some examples, as shown in fig. 1, a ratio a2 of the aperture ratio of the third subpixel 143 to the aperture ratio of the second subpixel 142 satisfies the following range:

where b is a ratio of the light emitting efficiency of the third sub-pixel 143 to the light emitting efficiency of the second sub-pixel 142.

In the display substrate provided by the example, since the ratio a1 of the aperture ratio of the first sub-pixel 141 and the aperture ratio of the second sub-pixel 142 satisfies: 1.15e (-0.25a) or more and A1 or more and 1.35e (-0.15a) or less, and 0.7 or more and A1 or more and 1 or less, the ratio A2 of the aperture ratio of the third sub-pixel 143 to the aperture ratio of the second sub-pixel 142 satisfies: 26.00e (-0.7b) A2-4.54 e (-0.3b), and 0.79A 2-1, so that the ratio of aperture ratios of the different color sub-pixels of the display substrate is balanced, thereby improving the color shift phenomenon and balancing the lifetimes of the different color sub-pixels. The aperture ratio is a ratio of an effective light emitting area of the sub-pixel to a total area of the display substrate. In addition, when the first sub-pixel is configured to emit red light, the second sub-pixel is configured to emit blue light, and the third sub-pixel is configured to emit green light, the light emitting efficiency of the first sub-pixel is greater than that of the second sub-pixel, and the light emitting efficiency of the third sub-pixel is greater than that of the second sub-pixel.

As shown in fig. 2A, when a ratio a of the light emitting efficiency of the first sub-pixel 141 to the light emitting efficiency of the second sub-pixel 142 is 3, the display substrate provided in the embodiment of the disclosure can balance the brightness and the lifetime of the first sub-pixel 141 and the second sub-pixel 142 by increasing the aperture ratio of the second sub-pixel 142, so as to improve the color shift phenomenon and increase the lifetime of the second sub-pixel 142; when the ratio a of the light emitting efficiency of the first sub-pixel 141 to the light emitting efficiency of the second sub-pixel 142 is 1, the display substrate provided in the embodiment of the disclosure may enable the aperture ratio of the first sub-pixel 141 to the second sub-pixel 142 to approach 1, so that the brightness and the lifetime of the first sub-pixel 141 and the second sub-pixel 142 are balanced, thereby improving the color cast phenomenon and prolonging the lifetime of the second sub-pixel 142. It should be noted that, with the development of the technology, the light emitting efficiency of the second sub-pixel emitting blue light may be gradually improved, and the display substrate provided in the embodiment of the disclosure may still ensure that the aperture ratio ratios of the sub-pixels of different colors are balanced on the premise that the light emitting efficiency of the second sub-pixel is improved through the above formula, so as to improve the color shift phenomenon.

As shown in fig. 2B, when the ratio B between the light emitting efficiency of the third sub-pixel 143 and the light emitting efficiency of the second sub-pixel 142 is 6, the display substrate provided in the embodiment of the disclosure can balance the brightness and the lifetime of the third sub-pixel 143 and the second sub-pixel 142 by increasing the aperture ratio of the second sub-pixel 142, so as to improve the color shift phenomenon and increase the lifetime of the second sub-pixel 142; when the ratio b of the light emitting efficiency of the first sub-pixel 141 to the light emitting efficiency of the second sub-pixel 142 is 2, the display substrate provided in the embodiment of the disclosure may enable the aperture opening ratio of the third sub-pixel 143 to the second sub-pixel 142 to be greater than 2, so that the brightness and the lifetime of the third sub-pixel 143 and the second sub-pixel 142 are balanced, thereby improving the color cast phenomenon and prolonging the lifetime of the second sub-pixel 142.

In some examples, as shown in fig. 1, the first subpixel 141 is shaped as a rounded rectangle or a rounded square. Therefore, the display substrate can reduce the difficulty in manufacturing a mask (e.g., FMM) for manufacturing the first sub-pixel 141.

In some examples, as shown in fig. 1, the second subpixel 142 is shaped as a rounded rectangle or rounded direction. Similarly, the display substrate can reduce the difficulty of fabricating a mask (e.g., FMM) for fabricating the second sub-pixel 142.

In some examples, as shown in fig. 1, the third subpixel 143 has a rounded square shape. Therefore, the display substrate can further reduce the difficulty in manufacturing a mask (e.g., FMM) for manufacturing the third sub-pixel 143.

The shape of the first sub-pixel, the second sub-pixel and the third sub-pixel may be an orthographic projection of the effective light emitting area of the sub-pixel on the substrate.

In some examples, as shown in fig. 1, in the second sub-pixel row 120, the centers of the effective light emitting areas of all the third sub-pixels 143 are located on a straight line extending in the first direction. Since the sensitivity of human eyes to green is high, the centers of the effective light emitting areas of all the third sub-pixels in the same second sub-pixel row are located on the straight line extending along the first direction, so that the granular sensation of human eyes in vision can be greatly reduced, and the display quality can be improved.

In some examples, as shown in fig. 1, in the jth first sub-pixel row 120, an orthogonal projection of the center of the effective light emitting area of each first sub-pixel 141 on the ith second sub-pixel row 130 is located at a midpoint of a connecting line of the centers of the effective light emitting areas of two adjacent third sub-pixels 143, so that symmetry can be improved, and display quality can be improved.

In some examples, as shown in fig. 1, in the jth first sub-pixel row 120, the distance between the center of the effective light emitting area of each first sub-pixel 141 and the centers of the effective light emitting areas of two adjacent third sub-pixels 143 in the ith second sub-pixel row 130 is equal, so that the symmetry can be further improved, and the display quality can be further improved.

In some examples, as shown in fig. 1, in the jth first sub-pixel row 120, an orthogonal projection of the center of the effective light emitting area of each second sub-pixel 142 on the ith second sub-pixel row 130 is located at a midpoint of a connecting line of the centers of the effective light emitting areas of two adjacent third sub-pixels 143, so that symmetry can be improved, and display quality can be improved.

In some examples, as shown in fig. 1, in the jth first sub-pixel row 120, the distance between the center of the effective light emitting area of each second sub-pixel 142 and the centers of the effective light emitting areas of two adjacent third sub-pixels 143 in the ith second sub-pixel row 130 is equal, so that the symmetry can be further improved, and the display quality can be further improved.

In some examples, as shown in fig. 1, the effective light emitting areas of two adjacent third sub-pixels 143 in the first direction are arranged in a mirror symmetry manner, and the effective light emitting areas of two adjacent third sub-pixels 143 in the second direction are arranged in a mirror symmetry manner, so that the symmetry of the third sub-pixels can be improved, and the display quality can be improved.

Fig. 3 is a schematic plan view of another display substrate according to an embodiment of the disclosure. As shown in fig. 3, the display substrate 100 includes a substrate 110, a plurality of first subpixel rows 120, and a plurality of second subpixel rows 130; a plurality of first subpixel rows 120 and a plurality of second subpixel rows 130 are disposed on the base substrate 110. Each of the first subpixel rows 120 includes a plurality of first subpixels 141 and a plurality of second subpixels 142 alternately arranged in the first direction; each second subpixel row 130 includes a plurality of third subpixels 143 arranged in the first direction. The plurality of first subpixel rows 120 and the plurality of second subpixel rows 130 are alternately arranged along a second direction, which intersects the first direction, for example, the second direction is perpendicular to the first direction. The ith second sub-pixel row 130 is located between the jth first sub-pixel row 120 and the j +1 th first sub-pixel row 120 in the second direction, in the ith second sub-pixel row 130, a forward projection of the center of each third sub-pixel 143 on the jth first sub-pixel row 120 is located between the adjacent first sub-pixel 141 and second sub-pixel 142, i and j are positive integers greater than or equal to 1; the first sub-pixel 141 is configured to emit light of a first color, the second sub-pixel 142 is configured to emit light of a second color, and the third sub-pixel 143 is configured to emit light of a third color. Therefore, the display substrate can also improve the pixel density and reduce the manufacturing difficulty of a mask (such as a fine metal mask, FMM) for forming the sub-pixels.

In some examples, as shown in fig. 3, a ratio a1 of the aperture ratio of the first subpixel 141 and the aperture ratio of the second subpixel 142 satisfies the following range:

1.25e (-0.25a) to A1 to 1.56e (-0.15a), and 0.56 to A1 to 0.75,

where a is a ratio of the light emitting efficiency of the first sub-pixel 141 and the light emitting efficiency of the second sub-pixel 142.

In the display substrate provided by the example, since the ratio a1 of the aperture ratio of the first subpixel 141 and the aperture ratio of the second subpixel 142 satisfies the following range: 1.25e (-0.25a) A1-1.56 e (-0.15a), and 0.56A 1-0.75, so that the ratio of the aperture ratios of the different color sub-pixels of the display substrate is balanced, thereby improving the color shift phenomenon and balancing the lifetimes of the different color sub-pixels.

1.25e (-0.25a) to A1 to 1.56e (-0.15a), and 0.75 to A1 to 0.9,

In the display substrate provided by the example, since the ratio a1 of the aperture ratio of the first subpixel 141 and the aperture ratio of the second subpixel 142 satisfies the following range: 1.25e (-0.25a) A1-1.56 e (-0.15a), 0.75A 1-0.9, and 0.56A 1-0.75, so that the ratio of the aperture ratios of the different color sub-pixels of the display substrate is balanced, thereby improving the color shift phenomenon and balancing the lifetimes of the different color sub-pixels.

In some examples, as shown in fig. 3, a ratio a2 of the aperture ratio of the third subpixel 143 to the aperture ratio of the second subpixel 142 satisfies the following range:

In the display substrate provided by the example, since the ratio a2 of the aperture ratio of the third sub-pixel 143 to the aperture ratio of the second sub-pixel 142 satisfies the following range: 750e (-0.7b) A2-19.38 e (-0.3b), and 0.70A 2-0.83, so that the ratio of aperture ratios of the different color sub-pixels of the display substrate is balanced, thereby improving the color shift phenomenon and balancing the lifetimes of the different color sub-pixels.

For example, in the display substrate provided in an embodiment of the disclosure, a ratio a2 of the aperture ratio of the third sub-pixel 143 to the aperture ratio of the second sub-pixel 142 satisfies the following range:

In the display substrate provided by the example, since the ratio a2 of the aperture ratio of the third sub-pixel 143 to the aperture ratio of the second sub-pixel 142 satisfies the following range: 750e (-0.7b) A2-19.38 e (-0.3b), and 0.83A 2-0.95, so that the ratio of aperture ratio of the sub-pixels of different colors on the display substrate is balanced, thereby improving color shift and balancing the lifetime of the sub-pixels of different colors.

In some examples, as shown in fig. 3, the first subpixel 141 is shaped as a rounded rectangle or a rounded square. Therefore, the display substrate can reduce the difficulty in manufacturing a mask (e.g., FMM) for manufacturing the first sub-pixel 141.

In some examples, as shown in fig. 3, the second subpixel 142 is shaped as a rounded rectangle or rounded direction. Similarly, the display substrate can reduce the difficulty of fabricating a mask (e.g., FMM) for fabricating the second sub-pixel 142.

In some examples, as shown in fig. 3, the third subpixel 143 has a rounded square shape. Therefore, the display substrate can further reduce the difficulty in manufacturing a mask (e.g., FMM) for manufacturing the third sub-pixel 143.

Fig. 4 is a schematic plan view of another display substrate according to an embodiment of the disclosure. As shown in fig. 4, the display substrate 100 includes a substrate 110, a plurality of first subpixel rows 120, and a plurality of second subpixel rows 130; a plurality of first subpixel rows 120 and a plurality of second subpixel rows 130 are disposed on the base substrate 110. Each of the first subpixel rows 120 includes a plurality of first subpixels 141 and a plurality of second subpixels 142 alternately arranged in the first direction; each second subpixel row 130 includes a plurality of third subpixels 143 arranged in the first direction. The plurality of first subpixel rows 120 and the plurality of second subpixel rows 130 are alternately arranged along a second direction, which intersects the first direction, for example, the second direction is perpendicular to the first direction. The ith second sub-pixel row 130 is located between the jth first sub-pixel row 120 and the j +1 th first sub-pixel row 120 in the second direction, in the ith second sub-pixel row 130, a forward projection of the center of each third sub-pixel 143 on the jth first sub-pixel row 120 is located between the adjacent first sub-pixel 141 and second sub-pixel 142, i and j are positive integers greater than or equal to 1; the first sub-pixel 141 is configured to emit light of a first color, the second sub-pixel 142 is configured to emit light of a second color, and the third sub-pixel 143 is configured to emit light of a third color. Therefore, the display substrate can also improve the pixel density and reduce the manufacturing difficulty of a mask (such as a fine metal mask, FMM) for forming the sub-pixels.

In some examples, as shown in fig. 4, a ratio a1 of the aperture ratio of the first subpixel 141 and the aperture ratio of the second subpixel 142 satisfies the following range:

2.79e < - > A1 is more than or equal to 2.25e < - > A1 is more than or equal to 2.79e < - > 0.25a, and A1 is more than or equal to 0.56 is more than or equal to 0.8,

In the display substrate provided by the example, since the ratio a1 of the aperture ratio of the first subpixel 141 and the aperture ratio of the second subpixel 142 satisfies the following range: 2.79e (-0.25a) or more and A1 or more and 2.25e (-0.15a) or less, and 0.56 or more and A1 or more and 0.8 or less, so that the ratio of the aperture ratios of the sub-pixels of different colors of the display substrate is balanced, thereby improving the color shift phenomenon and balancing the life of the sub-pixels of different colors.

2.79e < - > A1 is more than or equal to 2.25e < - > A1 is more than or equal to 2.79e < - > 0.25a, and A1 is more than or equal to 0.5 is more than or equal to 0.56,

In the display substrate provided by the example, the ratio a1 of the aperture ratio of the first subpixel 141 and the aperture ratio of the second subpixel 142 satisfies the following range: 2.79e (-0.25a) or more and A1 or more and 2.25e (-0.15a) or less, and 0.5 or more and A1 or more and 0.56 or less, so that the ratio of the aperture ratios of the sub-pixels of different colors of the display substrate is balanced, thereby improving the color shift phenomenon and balancing the life of the sub-pixels of different colors.

In some examples, as shown in fig. 4, a ratio a2 of the aperture ratio of the third subpixel 143 to the aperture ratio of the second subpixel 142 satisfies the following range:

In the display substrate provided by the example, since the ratio a2 of the aperture ratio of the third sub-pixel 143 to the aperture ratio of the second sub-pixel 142 satisfies: 350000e (-0.7b) A2-236 e (-0.3b), and 0.70A 2-0.85, so that the ratio of aperture ratio of the sub-pixels with different colors is balanced, thereby improving color shift and balancing the life of the sub-pixels with different colors.

It should be noted that, in the display substrate shown in fig. 1, 3 and 4, the ratio a of the light emission efficiency of the first sub-pixel to the light emission efficiency of the second sub-pixel is different from the ratio b of the light emission efficiency of the third sub-pixel to the light emission efficiency of the second sub-pixel, and therefore, the ranges satisfied by the ratio a1 of the aperture ratio of the first sub-pixel to the aperture ratio of the second sub-pixel and the ratio a2 of the aperture ratio of the third sub-pixel to the aperture ratio of the second sub-pixel are also different.

In some examples, as shown in fig. 4, the first subpixel 141 is shaped as a rounded rectangle or a rounded square. Therefore, the display substrate can reduce the difficulty in manufacturing a mask (e.g., FMM) for manufacturing the first sub-pixel 141.

In some examples, as shown in fig. 4, the second subpixel 142 is shaped as a rounded rectangle or rounded direction. Similarly, the display substrate can reduce the difficulty of fabricating a mask (e.g., FMM) for fabricating the second sub-pixel 142.

In some examples, as shown in fig. 4, the third sub-pixel 143 has an olive shape.

Fig. 5 is a schematic plan view of another display substrate according to an embodiment of the disclosure; as shown in fig. 5, the display substrate 100 includes a substrate 110, a plurality of first subpixel rows 120, and a plurality of second subpixel rows 130; a plurality of first subpixel rows 120 and a plurality of second subpixel rows 130 are disposed on the base substrate 110. Each of the first subpixel rows 120 includes a plurality of first subpixels 141 and a plurality of second subpixels 142 alternately arranged in the first direction; each second subpixel row 130 includes a plurality of third subpixels 143 arranged in the first direction. The plurality of first subpixel rows 120 and the plurality of second subpixel rows 130 are alternately arranged along a second direction, which intersects the first direction, for example, the second direction is perpendicular to the first direction. The ith second sub-pixel row 130 is located between the jth first sub-pixel row 120 and the j +1 th first sub-pixel row 120 in the second direction, in the ith second sub-pixel row 130, a forward projection of the center of each third sub-pixel 143 on the jth first sub-pixel row 120 is located between the adjacent first sub-pixel 141 and second sub-pixel 142, i and j are positive integers greater than or equal to 1; the first sub-pixel 141 is configured to emit light of a first color, the second sub-pixel 142 is configured to emit light of a second color, and the third sub-pixel 143 is configured to emit light of a third color. Therefore, the display substrate can also improve the pixel density and reduce the manufacturing difficulty of a mask (such as a fine metal mask, FMM) for forming the sub-pixels.

In some examples, as shown in fig. 5, the first subpixel 141 is shaped as a rounded rectangle or a rounded square. Therefore, the display substrate can reduce the difficulty in manufacturing a mask (e.g., FMM) for manufacturing the first sub-pixel 141.

In some examples, as shown in fig. 5, the second subpixel 142 is shaped as a rounded rectangle or rounded direction. Similarly, the display substrate can reduce the difficulty of fabricating a mask (e.g., FMM) for fabricating the second sub-pixel 142.

In some examples, as shown in fig. 5, the third subpixel 143 has an elliptical shape. Of course, the shape of the third sub-pixel 143 may also be a hexagon, but the embodiments of the present disclosure include but are not limited thereto.

Fig. 6 is a schematic cross-sectional view of a display substrate along line AB in fig. 5 according to an embodiment of the disclosure. As shown in fig. 6, the display substrate 100 includes a substrate 110, a first color pixel electrode 161, a second color pixel electrode 162, and a third color pixel electrode 163 on the substrate 110; a pixel defining layer 170 on a side of the first, second, and third

color pixel electrodes

161, 162, and 163 away from the substrate 110; and a first color light emitting layer 181, a second color light emitting layer 182, and a third color light emitting layer 183 on a side of the pixel defining layer 170 away from the base substrate 110. The pixel defining layer 170 includes a first opening 171, a second opening 172, and a third opening 173, the first opening 171 exposing the first color pixel electrode 161, the second opening 172 exposing the second color pixel electrode 162, and the third opening 173 exposing the third color pixel electrode 163; the first color emission layer 181 is disposed in contact with the portion of the first color pixel electrode 161 exposed by the first opening 171 through the first opening 171; the second color light emitting layer 182 is disposed in contact with the portion of the second color pixel electrode 162 exposed by the second opening 172 through the second opening 172; the third color light emitting layer 183 is disposed in contact with a portion of the third color pixel electrode 163 exposed by the third opening 173 through the third opening 173. At this time, the shape and size of the effective emission area of the first sub-pixel 141 are defined by the first opening 171, the shape and size of the effective emission area of the second sub-pixel 142 are defined by the second opening 172, and the shape and size of the effective emission area of the third sub-pixel 143 are defined by the third opening 173.

For example, the first color pixel electrode 161 is configured to drive the first color light emitting layer 181 to emit light of a first color; the second color pixel electrode 162 is configured to drive the second color light emitting layer 182 to emit light of the second color; the third color pixel electrode 163 is configured to drive the third color light emitting layer 183 to emit light of the third color.

For example, the first color is red, the second color is blue, and the third color is green. Of course, embodiments of the present disclosure include, but are not limited to, this.

The first color light-emitting layer, the second color light-emitting layer, and the third color light-emitting layer may include an organic light-emitting material layer that directly emits light, and may also include auxiliary film layers such as an electron injection layer, an electron transport layer, a hole injection layer, and a hole transport layer that are located on both sides of the organic light-emitting material layer. In addition, the first color light emitting layer, the second color light emitting layer and the third color light emitting layer can be manufactured by using a Fine Metal Mask (FMM) and adopting an evaporation process.

Fig. 7 is a schematic plan view of another display substrate according to an embodiment of the disclosure. As shown in fig. 7, the display substrate 100 further includes a pixel circuit layer 150; the plurality of first sub-pixels 141, the plurality of second sub-pixels 142, and the plurality of third sub-pixels 143 are located on a side of the pixel circuit layer 150 away from the substrate 110, and the pixel circuit layer 150 is configured to drive the plurality of first sub-pixels 141, the plurality of second sub-pixels 142, and the plurality of third sub-pixels 143 to emit light.

In some examples, as shown in fig. 7, the pixel circuit layer 150 includes a plurality of pixel driving units 155, power lines 151, data lines 152, and initialization signal lines 153; a plurality of pixel driving units 155 are arranged in an array on the substrate base 110 and form a plurality of pixel driving rows 220 and a plurality of pixel driving columns 230; each pixel drive row 220 extends in a first direction and each pixel drive column 230 extends in a second direction. The power supply line 151 is used to supply a power supply signal to the pixel driving unit 155 in one pixel driving column 230; the data line 152 is used to provide a data signal to the pixel driving unit 155 in one pixel driving column 230; the initialization signal line 153 is configured to supply an initialization signal to the pixel driving units 155 in one pixel driving row 220.

In some examples, as shown in fig. 7, the orthographic projection of the first sub-pixel 141 on the substrate base 110 completely overlaps with the orthographic projection of the power supply line 151 on the substrate base 110 in the first direction, i.e., the orthographic projection of the power supply line 151 on the substrate base 110 falls within the orthographic projection of the first sub-pixel 141 on the substrate base 110 in the first direction; at this time, an orthogonal projection of the effective light emitting area of the first subpixel 141 on the base substrate 110 overlaps an orthogonal projection of the power supply line 151 on the base substrate 110 in the first direction, and a width of an overlapping area of the effective light emitting area of the first subpixel 141 and the power supply line 151 in the first direction is substantially equal to a width of the power supply line 151 in the first direction. The orthographic projection of the first sub-pixel 141 on the substrate base 110 and the orthographic projection of the data line 152 on the substrate base 110 are arranged at intervals, that is, the orthographic projection of the first sub-pixel 141 on the substrate base 110 and the orthographic projection of the data line 152 on the substrate base 110 do not overlap.

In some examples, as shown in fig. 7, the orthographic projection of the second sub-pixel 142 on the substrate base 110 completely overlaps with the orthographic projection of the power line 151 on the substrate base 110 in the first direction, i.e., the orthographic projection of the power line 151 on the substrate base 110 falls within the orthographic projection of the second sub-pixel 142 on the substrate base 110 in the first direction; at this time, an orthogonal projection of the effective emission region of the second sub-pixel 142 on the substrate base 110 overlaps an orthogonal projection of the power supply line 151 on the substrate base 110, and a width of an overlapping region of the effective emission region of the second sub-pixel 142 and the power supply line 151 in the first direction is substantially equal to a width of the power supply line 151 in the first direction. The orthographic projection of the second sub-pixel 142 on the substrate base 110 and the orthographic projection of the data line 152 on the substrate base 110 are arranged at intervals, namely the orthographic projection of the second sub-pixel 142 on the substrate base 110 and the orthographic projection of the data line 152 on the substrate base 110 do not overlap; the orthographic projection of the second sub-pixel 142 on the substrate base plate 110 completely overlaps with the orthographic projection of the initialization signal line 153 on the substrate base plate 110 in the second direction; at this time, the orthogonal projection of the effective light emitting area of the second sub-pixel 142 on the substrate 110 overlaps the orthogonal projection of the initialization signal line 153 on the substrate 110 in the second direction, and the width of the overlapping area of the initialization signal line 153 and the effective light emitting area of the second sub-pixel 142 in the second direction is substantially equal to the width of the initialization signal line 153 in the second direction.

In some examples, as shown in fig. 7, an orthogonal projection of the third sub-pixel 143 on the substrate base 110 overlaps an orthogonal projection of the power supply line 151 on the substrate base 110 in the first direction.

Fig. 8 is a schematic plan view of another display substrate according to an embodiment of the disclosure. As shown in fig. 8, the orthographic projection of the first sub-pixel 141 on the substrate base 110 completely overlaps with the orthographic projection of the power line 151 on the substrate base 110 in the first direction, i.e. the orthographic projection of the power line 151 on the substrate base 110 falls within the orthographic projection of the first sub-pixel 141 on the substrate base 110 in the first direction; at this time, an orthogonal projection of the effective light emitting area of the first subpixel 141 on the base substrate 110 overlaps an orthogonal projection of the power supply line 151 on the base substrate 110 in the first direction, and a width of an overlapping area of the effective light emitting area of the first subpixel 141 and the power supply line 151 in the first direction is substantially equal to a width of the power supply line 151 in the first direction. The orthographic projection of the first sub-pixel 141 on the substrate base 110 is arranged at an interval with the orthographic projection of the data line 152 on the substrate base 110 in the first direction, that is, the orthographic projection of the first sub-pixel 141 on the substrate base 110 does not overlap with the orthographic projection of the data line 152 on the substrate base 110 in the first direction.

In some examples, as shown in fig. 8, the orthographic projection of the second sub-pixel 142 on the substrate base 110 completely overlaps with the orthographic projection of the power line 151 on the substrate base 110 in the first direction, i.e., the orthographic projection of the power line 151 on the substrate base 110 falls within the orthographic projection of the second sub-pixel 142 on the substrate base 110 in the first direction; at this time, an orthogonal projection of the effective emission region of the second sub-pixel 142 on the substrate base 110 overlaps an orthogonal projection of the power supply line 151 on the substrate base 110, and a width of an overlapping region of the effective emission region of the second sub-pixel 142 and the power supply line 151 in the first direction is substantially equal to a width of the power supply line 151 in the first direction. The orthographic projection of the second sub-pixel 142 on the substrate 110 partially overlaps the orthographic projection of the data line 152 on the substrate 110 in the first direction; at this time, an orthographic projection of the effective light emitting area of the second sub-pixel 142 on the base substrate 110 overlaps with an orthographic projection of the data line 152 on the base substrate 110 in the first direction, and a width of an overlapping area of the effective light emitting area of the second sub-pixel 142 and the data line 152 in the first direction is smaller than a width of the data line 152 in the first direction. The orthographic projection of the second sub-pixel 142 on the substrate base plate 110 completely overlaps with the orthographic projection of the initialization signal line 153 on the substrate base plate 110 in the second direction; at this time, the orthogonal projection of the effective light emitting area of the second sub-pixel 142 on the substrate 110 overlaps the orthogonal projection of the initialization signal line 153 on the substrate 110 in the second direction, and the width of the overlapping area of the initialization signal line 153 and the effective light emitting area of the second sub-pixel 142 in the second direction is substantially equal to the width of the initialization signal line 153 in the second direction.

In some examples, as shown in fig. 8, an orthogonal projection of the third sub-pixel 143 on the substrate base 110 overlaps an orthogonal projection of the power supply line 151 on the substrate base 110 in the first direction.

Fig. 9 is a schematic plan view of another display substrate according to an embodiment of the disclosure. As shown in fig. 9, the orthographic projection of the first sub-pixel 141 on the substrate base 110 completely overlaps with the orthographic projection of the power supply line 151 on the substrate base 110 in the first direction; at this time, an orthogonal projection of the effective light emitting area of the first subpixel 141 on the base substrate 110 overlaps an orthogonal projection of the power supply line 151 on the base substrate 110 in the first direction, and a width of an overlapping area of the effective light emitting area of the first subpixel 141 and the power supply line 151 in the first direction is substantially equal to a width of the power supply line 151 in the first direction. An orthogonal projection of the first subpixel 141 on the base substrate 110 is disposed at an interval from an orthogonal projection of the data line 152 on the base substrate 110 in the first direction.

In some examples, as shown in fig. 9, an orthogonal projection of the second subpixel 142 on the substrate base 110 completely overlaps an orthogonal projection of the power supply line 151 on the substrate base 110 in the first direction; at this time, an orthogonal projection of the effective emission region of the second sub-pixel 142 on the substrate base 110 overlaps an orthogonal projection of the power supply line 151 on the substrate base 110, and a width of an overlapping region of the effective emission region of the second sub-pixel 142 and the power supply line 151 in the first direction is substantially equal to a width of the power supply line 151 in the first direction. The orthographic projection of the second sub-pixel 142 on the substrate 110 completely overlaps with the orthographic projection of the data line 152 on the substrate 110 in the first direction; at this time, an orthogonal projection of the effective light emitting area of the second sub-pixel 142 on the base substrate 110 overlaps an orthogonal projection of the data line 152 on the base substrate 110 in the first direction, and a width of an overlapping area of the effective light emitting area of the second sub-pixel 142 and the data line 152 in the first direction is substantially equal to a width of the data line 152 in the first direction. The orthographic projection of the second sub-pixel 142 on the substrate base plate 110 completely overlaps with the orthographic projection of the initialization signal line 153 on the substrate base plate 110 in the second direction; at this time, the orthogonal projection of the effective light emitting area of the second sub-pixel 142 on the substrate 110 overlaps the orthogonal projection of the initialization signal line 153 on the substrate 110 in the second direction, and the width of the overlapping area of the initialization signal line 153 and the effective light emitting area of the second sub-pixel 142 in the second direction is substantially equal to the width of the initialization signal line 153 in the second direction.

In some examples, as shown in fig. 9, an orthogonal projection of the third sub-pixel 143 on the substrate base 110 overlaps an orthogonal projection of the power supply line 151 on the substrate base 110 in the first direction.

Fig. 10 is a schematic plan view of another display substrate according to an embodiment of the disclosure. As shown in fig. 10, the orthographic projection of the first sub-pixel 141 on the substrate base 110 completely overlaps with the orthographic projection of the power supply line 151 on the substrate base 110 in the first direction; at this time, an orthographic projection of the effective emission area of the first sub-pixel 141 on the base substrate 110 overlaps with an orthographic projection of the power supply line 151 on the base substrate 110 in the first direction, and a width of an overlapping area of the effective emission area of the first sub-pixel 141 and the power supply line 151 in the first direction is substantially equal to a width of the power supply line 151 in the first direction. An orthogonal projection of the first subpixel 141 on the base substrate 110 is disposed at an interval from an orthogonal projection of the data line 152 on the base substrate 110 in the first direction.

In some examples, as shown in fig. 10, an orthogonal projection of the second subpixel 142 on the substrate base 110 completely overlaps an orthogonal projection of the power supply line 151 on the substrate base 110 in the first direction; at this time, an orthogonal projection of the effective emission region of the second sub-pixel 142 on the substrate base 110 overlaps an orthogonal projection of the power supply line 151 on the substrate base 110, and a width of an overlapping region of the effective emission region of the second sub-pixel 142 and the power supply line 151 in the first direction is substantially equal to a width of the power supply line 151 in the first direction. The orthographic projection of the second sub-pixel 142 on the substrate 110 completely overlaps with the orthographic projection of the data line 152 on the substrate 110 in the first direction; at this time, an orthogonal projection of the effective light emitting area of the second sub-pixel 142 on the base substrate 110 overlaps an orthogonal projection of the data line 152 on the base substrate 110 in the first direction, and a width of an overlapping area of the effective light emitting area of the second sub-pixel 142 and the data line 152 in the first direction is substantially equal to a width of the data line 152 in the first direction. The orthographic projection of the second sub-pixel 142 on the substrate base plate 110 completely overlaps with the orthographic projection of the initialization signal line 153 on the substrate base plate 110 in the second direction; at this time, the orthogonal projection of the effective light emitting area of the second sub-pixel 142 on the substrate 110 overlaps the orthogonal projection of the initialization signal line 153 on the substrate 110 in the second direction, and the width of the overlapping area of the initialization signal line 153 and the effective light emitting area of the second sub-pixel 142 in the second direction is substantially equal to the width of the initialization signal line 153 in the second direction.

In some examples, as shown in fig. 10, an orthographic projection of the third sub-pixel 143 on the substrate base 110 completely overlaps with an orthographic projection of the power supply line 151 on the substrate base 110 in the first direction, two adjacent third sub-pixels 143 in the first direction are arranged in mirror symmetry, and two adjacent third sub-pixels 143 in the second direction are arranged in mirror symmetry.

At least one embodiment of the present disclosure also provides a display device. Fig. 11 is a schematic diagram of a display device according to an embodiment of the disclosure. As shown in fig. 11, the display device 300 includes the display substrate 100 of any one of the above. The display substrate can fully utilize the space of the display substrate, so that the space utilization rate is improved, and the pixel density can be improved; and this display substrates still can make the sub-pixel distribute more evenly, does benefit to the preparation degree of difficulty that reduces the mask plate (for example, meticulous metal mask board, FMM) that is used for forming the sub-pixel, therefore this display device also can make the sub-pixel distribute more evenly when improving pixel density, does benefit to the preparation degree of difficulty that reduces the mask plate (for example, meticulous metal mask board, FMM) that is used for forming the sub-pixel.

For example, in some examples, the display device may be any product or component having a display function, such as a smart phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator.

The following points need to be explained:

(1) in the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are referred to, and other structures may refer to general designs;

(2) features of the same embodiment of the disclosure and of different embodiments may be combined with each other without conflict.

The above are merely exemplary embodiments of the present disclosure and are not intended to limit the scope of the present disclosure, which is defined by the appended claims.

Claims

1. A display substrate, comprising:

a plurality of first subpixel rows, each of the first subpixel rows including a plurality of first subpixels and a plurality of second subpixels alternately arranged in a first direction; and

a plurality of second sub-pixel rows, each of the second sub-pixel rows including a plurality of third sub-pixels arranged in the first direction,

wherein the plurality of first sub-pixel rows and the plurality of second sub-pixel rows are alternately arranged along a second direction, the second direction intersecting the first direction,

the ith second sub-pixel row is located between the jth first sub-pixel row and the j +1 th first sub-pixel row in the second direction, in the ith second sub-pixel row, a forward projection of the center of each third sub-pixel on the jth first sub-pixel row is located between the adjacent first sub-pixel and the adjacent second sub-pixel, i and j are positive integers greater than or equal to 1,

the first sub-pixel is configured to emit light of a first color, the second sub-pixel is configured to emit light of a second color, the third sub-pixel is configured to emit light of a third color,

a ratio a1 of the aperture ratio of the first sub-pixel and the aperture ratio of the second sub-pixel satisfies the following range:

1.15e (-0.25a) or more and A1 or less and 1.35e (-0.15a) or more, and 0.7 or more and A1 or less and 1, or,

1.25e (-0.25a) or more and A1 or less and 1.56e (-0.15a) or more, and 0.56 or more and A1 or less and 0.75 or more, or,

1.25e (-0.25a) or more and A1 or more and 1.56e (-0.15a) or more, and 0.75 or more and A1 or more and 0.9 or less, or,

2.79e (-0.25a) or more and A1 or less and 2.25e (-0.15a) or more, and 0.56 or more and A1 or less and 0.65 or less, or,

2. The display substrate according to claim 1, wherein a distance D1 between centers of two adjacent third sub-pixels in the ith second sub-pixel row is smaller than a shortest distance D2 between a center of one of the first sub-pixels in the jth first sub-pixel row and a center of one of the first sub-pixels in the j +1 th first sub-pixel row.

3. The display substrate according to claim 1, wherein a distance D1 between centers of two adjacent third sub-pixels in the ith second sub-pixel row is smaller than a shortest distance D3 between a center of one of the second sub-pixels in the jth first sub-pixel row and a center of one of the second sub-pixels in the j +1 th first sub-pixel row.

4. The display substrate of claim 1,

a ratio a2 of the aperture ratio of the third sub-pixel to the aperture ratio of the second sub-pixel satisfies the following range:

5. The display substrate of claim 1,

6. The display substrate of claim 1,

7. The display substrate of claim 1,

8. The display substrate of any of claims 1-7, wherein the shape of the effective light emitting area of the first sub-pixel comprises a rounded rectangle or a rounded square.

9. The display substrate of any of claims 1-7, wherein the shape of the effective light emitting area of the second sub-pixel comprises a rounded rectangle or a rounded square.

10. The display substrate of any one of claims 1-7, wherein the shape of the effective light emitting area of the third sub-pixel comprises any one of a rounded rectangle, a rounded square, an olive, a hexagon, and an ellipse.

11. The display substrate according to any one of claims 1 to 7, wherein in the second sub-pixel row, centers of the effective light emitting areas of all the third sub-pixels are located on a straight line extending in the first direction.

12. The display substrate of any one of claims 1-7,

in the jth first sub-pixel row, the orthographic projection of the center of the effective light emitting area of each first sub-pixel on the ith second sub-pixel row is located on the midpoint of the connecting line of the centers of the effective light emitting areas of the adjacent two third sub-pixels.

13. The display substrate of claim 12,

in the jth first sub-pixel row, the distance between the center of the effective light emitting area of each first sub-pixel and the center of the effective light emitting area of two adjacent third sub-pixels in the ith second sub-pixel row is equal.

14. The display substrate of any one of claims 1-7,

in the jth first sub-pixel row, the orthographic projection of the center of the effective light emitting area of each second sub-pixel on the ith second sub-pixel row is located on the midpoint of the connecting line of the centers of the effective light emitting areas of the two adjacent third sub-pixels.

15. The display substrate of claim 14,

in the jth first sub-pixel row, the distance between the center of the effective light emitting area of each second sub-pixel and the center of the effective light emitting area of two adjacent third sub-pixels in the ith second sub-pixel row is equal.

16. The display substrate according to claim 15, wherein the effective light emitting areas of two adjacent third sub-pixels in the first direction are arranged in a mirror image, and the effective light emitting areas of two adjacent third sub-pixels in the second direction are arranged in a mirror image.

17. The display substrate of any of claims 1-7, further comprising:

a substrate base plate; and

a pixel circuit layer, a pixel electrode layer,

wherein the plurality of first sub-pixels, the plurality of second sub-pixels, and the plurality of third sub-pixels are located on a side of the pixel circuit layer away from the substrate, and the pixel circuit layer is configured to drive the plurality of first sub-pixels, the plurality of second sub-pixels, and the plurality of third sub-pixels to emit light.

18. The display substrate of claim 17, wherein the pixel circuit layer comprises:

a plurality of pixel driving units arranged in an array on a substrate and forming a plurality of pixel driving rows and a plurality of pixel driving columns, each of the pixel driving rows extending in the first direction, and each of the pixel driving columns extending in the second direction;

a power supply line configured to supply a power supply signal to the pixel driving units in one of the pixel driving columns;

a data line configured to supply a data signal to the pixel driving units in one of the pixel driving columns; and

an initialization signal line configured to supply an initialization signal to the pixel driving units in one of the pixel driving rows.

19. The display substrate of claim 18,

the orthographic projection of the effective light emitting area of the first sub-pixel on the substrate is overlapped with the orthographic projection of the power supply line on the substrate in the first direction, and the width of the overlapped area of the effective light emitting area of the first sub-pixel and the power supply line in the first direction is approximately equal to the width of the power supply line in the first direction,

the orthographic projection of the effective light emitting area of the first sub-pixel on the substrate base plate and the orthographic projection of the data line on the substrate base plate are arranged at intervals.

20. The display substrate according to claim 19, wherein an orthogonal projection of the effective light emitting area of the second sub-pixel on the base substrate overlaps with an orthogonal projection of the power supply line on the base substrate, and a width of an overlapping area of the effective light emitting area of the second sub-pixel and the power supply line in the first direction is substantially equal to a width of the power supply line in the first direction,

the orthographic projection of the effective light emitting area of the second sub-pixel on the substrate is spaced from the orthographic projection of the data line on the substrate,

the orthographic projection of the effective light emitting area of the second sub-pixel on the substrate is overlapped with the orthographic projection of the initialization signal line on the substrate in the second direction, and the width of the overlapped area of the initialization signal line and the effective light emitting area of the second sub-pixel in the second direction is approximately equal to the width of the initialization signal line in the second direction.

21. The display substrate according to claim 20, wherein an orthographic projection of the effective light emitting area of the third sub-pixel on the base substrate overlaps with an orthographic projection of the power supply line on the base substrate in the first direction.

22. The display substrate according to claim 18, wherein an orthographic projection of the effective light emitting area of the second sub-pixel on the base substrate overlaps with an orthographic projection of the power supply line on the base substrate in the first direction, and a width of an overlapping area of the effective light emitting area of the second sub-pixel and the power supply line in the first direction is substantially equal to a width of the power supply line in the first direction,

an orthographic projection of the effective light emitting area of the second sub-pixel on the substrate overlaps with an orthographic projection of the data line on the substrate in the first direction, and the width of the overlapping area of the effective light emitting area of the second sub-pixel and the data line in the first direction is approximately equal to the width of the data line in the first direction,

23. The display substrate according to claim 22, wherein an orthographic projection of the effective light emitting area of the third sub-pixel on the base substrate overlaps with an orthographic projection of the power supply line on the base substrate in the first direction.

24. A display device comprising the display substrate of any one of claims 1-23.