Display substrate and related device

Abstract

The invention provides a display substrate and a related device, and belongs to the technical field of display. The display substrate comprises a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, the first sub-pixels, the second sub-pixels and the third sub-pixels are different in color, in the first direction, the first sub-pixels and first sub-pixel groups are alternately arranged to form pixel rows, and each first sub-pixel group comprises two second sub-pixels and two third sub-pixels; in a second direction perpendicular to the first direction, the first sub-pixels and the first sub-pixel groups are alternately arranged to form a pixel column; the first sub-pixels of every two adjacent rows of pixel rows are arranged in a staggered mode according to the set width, the second sub-pixels and the third sub-pixels are arranged in the third direction and the fourth direction, the included angle between the third direction and the first direction is 45 degrees, and the included angle between the fourth direction and the second direction is 135 degrees. According to the invention, the fine degree of picture display can be improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display substrate and related devices. Background Art

[0002] Organic Light Emitting Diode (OLED) display devices are one of the hot topics in the field of flat panel display research today. Compared with liquid crystal displays, OLED display devices have the advantages of low energy consumption, low production cost, self-luminescence, wide viewing angle and fast response speed. At present, in the field of flat panel displays, OLED display devices have begun to replace traditional liquid crystal displays (LCD).

[0003] The structure of an OLED display device mainly includes: a substrate, and pixels arranged in a matrix on the substrate. Each pixel is generally formed by using organic materials through evaporation film forming technology through a high-precision metal mask to form an organic electroluminescent structure at the corresponding pixel position on the array substrate. The shape and arrangement of the pixels of an OLED display device directly affect the fineness of the picture display. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a display substrate and related devices, which can improve the fineness of picture display.

[0005] To solve the above technical problems, the embodiments of the present invention provide the following technical solutions:

[0006] In one aspect, a display substrate is provided, comprising a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels of different colors,

[0007] In a first direction, the first sub-pixels and the first sub-pixel group are alternately arranged to form a pixel row, and the first sub-pixel group includes two of the second sub-pixels and two of the third sub-pixels; in a second direction perpendicular to the first direction, the first sub-pixels and the first sub-pixel group are alternately arranged to form a pixel column;

[0008] The first sub-pixels of two adjacent rows of pixels are staggered with a predetermined width, the second sub-pixels and the third sub-pixels are arranged along a third direction and a fourth direction, the angle between the third direction and the first direction is 45°, and the angle between the fourth direction and the second direction is 135°.

[0009] In some embodiments, a line connecting the centers of two adjacent first sub-pixels in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels in the first direction is parallel to the first direction, and a line connecting the centers of two adjacent third sub-pixels in the first direction is parallel to the first direction.

[0010] In some embodiments, in the third direction, the second sub-pixels and the third sub-pixels are arranged alternately; in the fourth direction, the second sub-pixels and the third sub-pixels are arranged alternately;

[0011] In each of the pixel rows, the second sub-pixel is located on a first side of a first connecting line, and the third sub-pixel is located on a second side of the first connecting line. The first connecting line is a connecting line connecting centers of adjacent first sub-pixels.

[0012] In some embodiments, in the third direction, the second sub-pixels are arranged in sequence; in the fourth direction, the third sub-pixels are arranged in sequence.

[0013] In some embodiments, in the third direction, the second sub-pixels and the third sub-pixels are arranged alternately in pairs, and in the fourth direction, the second sub-pixels and the third sub-pixels are arranged alternately in pairs, the second sub-pixels and the third sub-pixels arranged in the third direction are symmetrically distributed with respect to the fourth direction, and the second sub-pixels and the third sub-pixels arranged in the fourth direction are symmetrically distributed with respect to the third direction.

[0014] In some embodiments, the first sub-pixel is circular, and the second sub-pixel and the third sub-pixel are elliptical;

[0015] In the third direction and the fourth direction, distances between geometric centers of adjacent sub-pixels are equal.

[0016] In some embodiments, the first sub-pixel is a rectangle, the second sub-pixel and the third sub-pixel are convex polygons, and the shortest distances between the edges of adjacent second sub-pixels and third sub-pixels in the third direction and the fourth direction are equal.

[0017] In some embodiments, the first sub-pixel is a rectangle, the second sub-pixel and the third sub-pixel are convex polygons, and the shortest distances between edges of adjacent sub-pixels in the third direction and the fourth direction are equal.

[0018] In some embodiments, the first sub-pixel is a blue sub-pixel, the second sub-pixel is selected from one of a red sub-pixel and a green sub-pixel, and the third sub-pixel is selected from the other of a red sub-pixel and a green sub-pixel.

[0019] In some embodiments, each of the first sub-pixels is surrounded by eight of the second sub-pixels and the third sub-pixels, and a line connecting geometric centers of the eight second sub-pixels and the third sub-pixels forms a regular octagon.

[0020] An embodiment of the present invention further provides an organic electroluminescent display panel, comprising the display substrate as described above.

[0021] In some embodiments, a pixel defining layer is further included, and the pixel defining layer includes a plurality of pixel defining layer openings, each of the first sub-pixels, each of the second sub-pixels, and each of the third sub-pixels respectively corresponds to a pixel defining layer opening, and the shapes of the first sub-pixel, the second sub-pixel, and the third sub-pixel are substantially the same as the opening shapes of the corresponding pixel defining layers.

[0022] In some embodiments, the first sub-pixel includes a multi-layer film layer, and the multi-layer film layer of the first sub-pixel at least partially covers the area outside the pixel defining layer opening; and / or, the second sub-pixel includes a multi-layer film layer, and the multi-layer film layer of the second sub-pixel at least partially covers the area outside the pixel defining layer opening; and / or, the third sub-pixel includes a multi-layer film layer, and the multi-layer film layer of the third sub-pixel at least partially covers the area outside the pixel defining layer opening.

[0023] An embodiment of the present invention further provides a display device, comprising the organic electroluminescent display panel as described above.

[0024] The embodiments of the present invention have the following beneficial effects:

[0025] In the above scheme, the display substrate provided by the embodiment of the present disclosure can double the pixel density of the second sub-pixel and the third sub-pixel under the same process conditions compared with the existing display substrate, thereby improving the resolution of the display device under the condition of meeting the minimum pixel spacing, reducing the granularity of the displayed image, and improving the fineness of the image display. In addition, by adopting the above pixel arrangement method, the edges of the display substrate can be arranged with the first sub-pixel, the second sub-pixel and the third sub-pixel, which can improve the edge color deviation phenomenon of the display substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the display screen effect of a display product with an existing GGRB pixel structure;

[0027] Figure 2 A schematic diagram of pixel arrangement of a display product with an existing GGRB pixel structure;

[0028] Figure 3 A schematic diagram of the display screen effect of an existing Diamond structure display product;

[0029] Figure 4 A schematic diagram of pixel arrangement of existing Diamond structure display products;

[0030] Figure 5-Figure 13 A schematic diagram of pixel arrangement of a display substrate according to an embodiment of the present invention;

[0031] Fig.14 A schematic diagram of the display screen effect of a display product with an existing Magic pixel structure;

[0032] Fig.15 A schematic diagram of a display screen effect of a display substrate according to an embodiment of the present invention;

[0033] Figure 16-Figure 18 Schematic diagram of the angle between a first sub-pixel and a center line connecting adjacent second sub-pixels and third sub-pixels according to an embodiment of the present invention.

[0034] Reference numerals

[0035] 011 First sub-pixel

[0036] 012 Second sub-pixel

[0037] 013 The third sub-pixel DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0039] The shape and arrangement of OLED pixels directly affect the fineness of the picture display. Figure 1 This is a schematic diagram of the display effect of an existing GGRB pixel structure display product. Figure 2 A schematic diagram of the pixel arrangement of a display product with an existing GGRB pixel structure. Figure 3 This is a schematic diagram of the display effect of the existing Diamond structure display product. Figure 4 This is a schematic diagram of the pixel arrangement of existing Diamond structure display products. It can be seen that the display images of GGRB pixel structure and Diamond pixel structure both have a strong sense of graininess.

[0040] The embodiments of the present invention provide a display substrate and related devices, which can improve the fineness of picture display.

[0041] An embodiment of the present invention provides a display substrate, comprising a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels of different colors.

[0042] In a first direction, the first sub-pixels and the first sub-pixel group are alternately arranged to form a pixel row, and the first sub-pixel group includes two of the second sub-pixels and two of the third sub-pixels; in a second direction perpendicular to the first direction, the first sub-pixels and the first sub-pixel group are alternately arranged to form a pixel column;

[0043] The first sub-pixels of two adjacent rows of pixels are staggered with a predetermined width, the second sub-pixels and the third sub-pixels are arranged along a third direction and a fourth direction, the angle between the third direction and the first direction is 45°, and the angle between the fourth direction and the second direction is 135°.

[0044] Compared with the existing display substrate, the display substrate provided by the embodiment of the present disclosure has a ratio of the number of first sub-pixels, second sub-pixels and third sub-pixels of 1:2:2. Under the same process conditions, the pixel density of the second sub-pixels and the third sub-pixels can be doubled, thereby improving the resolution of the display device while meeting the minimum pixel spacing, reducing the granularity of the displayed picture, and improving the delicacy of the picture display.

[0045] In addition, when using the GGRB pixel structure, such as Figure 1 As shown, only green sub-pixels are distributed on the left edge and the bottom edge of the display substrate, and only red sub-pixels are distributed on the right edge of the display substrate. Figure 2 As shown in FIG. 1 , the edge of the display substrate has obvious color deviation. When the Diamond structure is used, Figure 3 As shown, only blue sub-pixels and red sub-pixels are distributed on the left edge and upper edge of the display substrate, and only green sub-pixels are distributed on the right edge and lower edge of the display substrate. Figure 4 As shown, an obvious color shift phenomenon occurs at the edge of the display substrate.

[0046] By adopting the pixel arrangement method of the embodiment of the present disclosure, the edge of the display substrate can be arranged with the first sub-pixel, the second sub-pixel and the third sub-pixel, which can improve the color shift phenomenon at the edge of the display substrate.

[0047] The predetermined width may be half of the distance between the centers of two adjacent first sub-pixels in the first direction. In this embodiment, in order to make the distribution of the brightness center more uniform and improve the display effect of the display device, the centers of adjacent first sub-pixels in the first direction and the second direction are located on the same straight line, and the centers of adjacent second sub-pixels and third sub-pixels in the third direction and the fourth direction are located on the same straight line.

[0048] In some embodiments, in order to make the distribution of brightness centers more uniform and improve the display effect of the display device, a line connecting the centers of two adjacent first sub-pixels in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels in the first direction is parallel to the first direction, and a line connecting the centers of two adjacent third sub-pixels in the first direction is parallel to the first direction.

[0049] In some embodiments, a first subpixel includes a first effective light-emitting area, a second subpixel includes a second effective light-emitting area, and a third subpixel includes a third effective light-emitting area. The areas of the third effective light-emitting area and the second effective light-emitting area are both smaller than the area of ​​the first effective light-emitting area, and the areas of the third effective light-emitting area and the second effective light-emitting area may be equal.

[0050] In some embodiments, each first effective light-emitting area, each second effective light-emitting area, and each third effective light-emitting area are separated. In some embodiments, each first effective light-emitting area, each second effective light-emitting area, and each third effective light-emitting area are defined by a plurality of separated openings formed in the pixel defining layer. In some embodiments, each first effective light-emitting area is defined by a light-emitting layer in the corresponding first sub-pixel, which is located between the relative anode and cathode in the direction perpendicular to the substrate, and is driven to emit light. In some embodiments, each second effective light-emitting area is defined by a light-emitting layer in the corresponding second sub-pixel, which is located between the relative anode and cathode in the direction perpendicular to the substrate, and is driven to emit light. In some embodiments, each third effective light-emitting area is defined by a light-emitting layer in the corresponding third sub-pixel, which is located between the relative anode and cathode in the direction perpendicular to the substrate, and is driven to emit light. In some embodiments, each first effective light-emitting area, each second effective light-emitting area, and each third effective light-emitting area are defined by a corresponding light-emitting layer and an electrode (anode or cathode) or a portion of an electrode that has carrier (hole or electron) transmission with the corresponding light-emitting layer. In some embodiments, each first effective light-emitting area, each second effective light-emitting area, and each third effective light-emitting area are defined by at least a portion of a cathode and at least a portion of an anode whose orthographic projections overlap on a substrate, and at least a portion of the cathode and at least a portion of the anode do not overlap with an orthographic projection of a first insulating layer on the substrate, and the first insulating layer is located between the cathode and the anode in a direction perpendicular to the substrate. For example, the first insulating layer includes a pixel defining layer. In some embodiments, each first sub-pixel, each second sub-pixel and each third sub-pixel respectively include a first electrode, a light-emitting layer located on a side of the first electrode away from the substrate, and a second electrode located on a side of the light-emitting layer away from the first electrode. In the direction perpendicular to the substrate, a second insulating layer is also provided between the first electrode and the light-emitting layer, and / or between the second electrode and the light-emitting layer. The second insulating layer overlaps with the projection of the first electrode or the second electrode on the substrate, and the second insulating layer has an opening. The opening of the second insulating layer on the side facing the light-emitting layer can expose at least part of the first electrode or the second electrode so that it can contact the light-emitting layer or the auxiliary light-emitting functional layer. Each first effective light-emitting area, each second effective light-emitting area and each third effective light-emitting area are defined by the part of the first electrode or the second electrode that contacts the light-emitting layer or the auxiliary light-emitting functional layer. In some embodiments, the second insulating layer includes a pixel defining layer. In some embodiments, the auxiliary light-emitting functional layer can be any one or more of a hole injection layer, a hole transport layer, an electron transport layer, a hole blocking layer, an electron blocking layer, an electron injection layer, an auxiliary light-emitting layer, an interface improvement layer, an anti-reflection layer, etc. In some embodiments, the first electrode can be an anode and the second electrode can be a cathode. In some embodiments, the first electrode may include at least two layers of indium tin oxide (ITO) and silver (Ag), for example, a three-layer stack of ITO, Ag, and ITO.In some embodiments, the second electrode may include any one or more of magnesium (Mg), Ag, ITO, and indium zinc oxide (IZO), for example, a mixed layer or alloy layer of Mg and Ag.

[0051] Each sub-pixel includes a light-emitting layer, each first sub-pixel includes a first color light-emitting layer located in the opening and on the pixel defining layer, each second sub-pixel includes a second color light-emitting layer located in the opening and on the pixel defining layer, and each third sub-pixel includes a third color light-emitting layer located in the opening and on the pixel defining layer.

[0052] In some embodiments, in the third direction, the second sub-pixels and the third sub-pixels are arranged alternately; in the fourth direction, the second sub-pixels and the third sub-pixels are arranged alternately;

[0053] In each of the pixel rows, the second sub-pixel is located on the first side of the first line, and the third sub-pixel is located on the second side of the first line. The first line is a line connecting the centers of adjacent first sub-pixels. In this way, the second sub-pixels and the third sub-pixels can be evenly arranged, and the distribution of the brightness center can be more uniform, thereby improving the display effect of the display device.

[0054] In some embodiments, in the third direction, the second sub-pixels are arranged in sequence; in the fourth direction, the third sub-pixels are arranged in sequence, so that the second sub-pixels and the third sub-pixels can be arranged evenly, the distribution of the brightness center can be more uniform, and the display effect of the display device can be improved.

[0055] In some embodiments, in the third direction, the second sub-pixels and the third sub-pixels are arranged alternately in pairs, and in the fourth direction, the second sub-pixels and the third sub-pixels are arranged alternately in pairs, the second sub-pixels and the third sub-pixels arranged in the third direction are symmetrically distributed with respect to the fourth direction, and the second sub-pixels and the third sub-pixels arranged in the fourth direction are symmetrically distributed with respect to the third direction, so that the second sub-pixels and the third sub-pixels can be evenly arranged, the distribution of the brightness center can be more uniform, and the display effect of the display device can be improved.

[0056] Optionally, in the display substrate provided by the embodiment of the present disclosure, the first sub-pixel is a blue sub-pixel, the second sub-pixel is selected from one of a red sub-pixel and a green sub-pixel, and the third sub-pixel is selected from the other of the red sub-pixel and the green sub-pixel.

[0057] Optionally, the specific shapes, positional relationships, parallel and angular relationships, etc. of the second sub-pixel, the first sub-pixel and the third sub-pixel can be designed as needed. In actual processes, there may be some deviations due to limitations of process conditions or other factors. Therefore, as long as the shape, position and relative positional relationship of each sub-pixel roughly meet the above conditions, they all belong to the display substrate provided in the embodiments of the present disclosure.

[0058] It should be noted that in the display substrate provided in the embodiment of the present disclosure, the sub-pixel mentioned is located at a certain position, which refers to the position range of the sub-pixel, as long as the sub-pixel overlaps with the position. In specific implementation, the center of the sub-pixel can overlap with the position. Of course, the center of the sub-pixel can also not overlap with the position, that is, there is an offset between the two, which is not limited here. In addition, the center of the sub-pixel can be the geometric center of the sub-pixel graphic, or the center of the sub-pixel luminous color, which is not limited here.

[0059] Optionally, in the display substrate provided in the embodiment of the present disclosure, in order to ensure that the sub-pixels are evenly distributed, the center of each sub-pixel is made as close to the corresponding position as possible.

[0060] The technical solution of the present disclosure is further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0061] In the specific embodiment 1, Figure 5 As shown, two second sub-pixels 012 and two third sub-pixels 013 form a first sub-pixel 011 group, and in the first direction, the first sub-pixels 011 and the first sub-pixel 011 group are arranged alternately; in the second direction, the first sub-pixel 011 and the first sub-pixel 011 group are arranged alternately; the pixels of two adjacent rows are arranged with a staggered predetermined width; in the third direction, the second sub-pixels 012 and the third sub-pixels 013 are arranged alternately; in the fourth direction, the second sub-pixels 012 and the third sub-pixels 013 are arranged alternately.

[0062] A line connecting the centers of two adjacent first sub-pixels 011 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels 012 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent third sub-pixels 013 in the first direction is parallel to the first direction, and in each of the pixel rows, the second sub-pixels 012 are located on a first side of the first line, the third sub-pixel 013 is located on a second side of the first line, and the first line is a line connecting the centers of adjacent first sub-pixels 011.

[0063] In the third direction, the distances between the geometric centers of adjacent second sub-pixels 012 are equal, and the distances between the geometric centers of adjacent third sub-pixels 013 are equal; in the fourth direction, the distances between the geometric centers of adjacent second sub-pixels 012 are equal, and the distances between the geometric centers of adjacent third sub-pixels 013 are equal. In the first direction, the distances between the geometric centers of adjacent first sub-pixels 011 are equal; in the second direction, the distances between the geometric centers of adjacent first sub-pixels 011 are equal.

[0064] In this embodiment, the first sub-pixel 011 may be circular, and the second sub-pixel 012 and the third sub-pixel 013 may be elliptical.

[0065] This embodiment can double the pixel density of the second sub-pixel 012 and the third sub-pixel 013, thereby improving the resolution of the display device under the condition of meeting the minimum pixel spacing, reducing the granularity of the displayed image, and improving the fineness of the image display. In addition, by adopting the above-mentioned pixel arrangement method, the edge of the display substrate can be arranged with the first sub-pixel 011, the second sub-pixel 012 and the third sub-pixel 013, which can improve the color shift phenomenon at the edge of the display substrate.

[0066] In the second specific embodiment, Figure 6 As shown, two second sub-pixels 012 and two third sub-pixels 013 form a first sub-pixel 011 group. In the first direction, the first sub-pixels 011 and the first sub-pixel 011 group are arranged alternately; in the second direction, the first sub-pixels 011 and the first sub-pixel 011 group are arranged alternately; the pixels of two adjacent rows are arranged with a predetermined width; in the third direction, the third sub-pixels 013 are arranged sequentially; in the fourth direction, the second sub-pixels 012 are arranged sequentially. Of course, the second sub-pixels 012 can also be arranged sequentially in the third direction; and the third sub-pixels 013 can be arranged sequentially in the fourth direction.

[0067] A line connecting the centers of two adjacent first sub-pixels 011 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels 012 in the first direction is parallel to the first direction, and a line connecting the centers of two adjacent third sub-pixels 013 in the first direction is parallel to the first direction.

[0068] In the third direction, the distances between the geometric centers of adjacent third sub-pixels 013 are equal; in the fourth direction, the distances between the geometric centers of adjacent second sub-pixels 012 are equal. In the first direction, the distances between the geometric centers of adjacent first sub-pixels 011 are equal; in the second direction, the distances between the geometric centers of adjacent first sub-pixels 011 are equal.

[0069] In this embodiment, the first sub-pixel 011 may be circular, and the second sub-pixel 012 and the third sub-pixel 013 may be elliptical.

[0070] This embodiment can double the pixel density of the second sub-pixel 012 and the third sub-pixel 013, thereby improving the resolution of the display device under the condition of meeting the minimum pixel spacing, reducing the graininess of the displayed image, and improving the fineness of the image display. In addition, by adopting the above-mentioned pixel arrangement method, the edge of the display substrate can be arranged with the first sub-pixel 011, the second sub-pixel 012 and the third sub-pixel 013, which can improve the color shift phenomenon at the edge of the display substrate.

[0071] In the specific embodiment 3, Figure 7 As shown, two second sub-pixels 012 and two third sub-pixels 013 form a first sub-pixel 011 group. In the first direction, the first sub-pixel 011 and the first sub-pixel 011 group are arranged alternately; in the second direction, the first sub-pixel 011 and the first sub-pixel 011 group are arranged alternately; the pixels of two adjacent rows are arranged with a predetermined width staggered; in the third direction, the third sub-pixel 013 and the second sub-pixel 012 are arranged alternately in pairs; in the fourth direction, the third sub-pixel 013 and the second sub-pixel 012 are arranged alternately in pairs. The second sub-pixels 012 and the third sub-pixels 013 arranged in the third direction are symmetrically distributed with respect to the fourth direction, and the second sub-pixels 012 and the third sub-pixels 013 arranged in the fourth direction are symmetrically distributed with respect to the third direction.

[0072] A line connecting the centers of two adjacent first sub-pixels 011 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels 012 in the first direction is parallel to the first direction, and a line connecting the centers of two adjacent third sub-pixels 013 in the first direction is parallel to the first direction.

[0073] In the third direction, the distance between the geometric centers of the two nearest third sub-pixels 013 is equal to the distance between the geometric centers of the two nearest second sub-pixels 012; in the fourth direction, the distance between the geometric centers of the two nearest third sub-pixels 013 is equal to the distance between the geometric centers of the two nearest second sub-pixels 012. In the first direction, the distances between the geometric centers of adjacent first sub-pixels 011 are equal; in the second direction, the distances between the geometric centers of adjacent first sub-pixels 011 are equal.

[0074] In this embodiment, the first sub-pixel 011 may be circular, and the second sub-pixel 012 and the third sub-pixel 013 may be elliptical.

[0075] This embodiment can double the pixel density of the second sub-pixel 012 and the third sub-pixel 013, thereby improving the resolution of the display device under the condition of meeting the minimum pixel spacing, reducing the graininess of the displayed image, and improving the fineness of the image display. In addition, by adopting the above-mentioned pixel arrangement method, the edge of the display substrate can be arranged with the first sub-pixel 011, the second sub-pixel 012 and the third sub-pixel 013, which can improve the color shift phenomenon at the edge of the display substrate.

[0076] In the specific embodiment 4, Figure 8 As shown, two second sub-pixels 012 and two third sub-pixels 013 form a first sub-pixel 011 group, and in the first direction, the first sub-pixels 011 and the first sub-pixel 011 group are arranged alternately; in the second direction, the first sub-pixel 011 and the first sub-pixel 011 group are arranged alternately; the pixels of two adjacent rows are arranged with a staggered predetermined width; in the third direction, the second sub-pixels 012 and the third sub-pixels 013 are arranged alternately; in the fourth direction, the second sub-pixels 012 and the third sub-pixels 013 are arranged alternately.

[0077] A line connecting the centers of two adjacent first sub-pixels 011 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels 012 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent third sub-pixels 013 in the first direction is parallel to the first direction, and in each of the pixel rows, the second sub-pixels 012 are located on a first side of the first line, the third sub-pixel 013 is located on a second side of the first line, and the first line is a line connecting the centers of adjacent first sub-pixels 011.

[0078] In the third direction, the shortest distances between the edges of adjacent third sub-pixels 013 and second sub-pixels 012 in different first sub-pixel 011 groups are all equal; in the fourth direction, the shortest distances between the edges of adjacent third sub-pixels 013 and second sub-pixels 012 in different first sub-pixel 011 groups are all equal.

[0079] In this embodiment, the first sub-pixel 011 may be a rectangle, and the second sub-pixel 012 and the third sub-pixel 013 may be convex polygons, such as convex pentagons.

[0080] This embodiment can double the pixel density of the second sub-pixel 012 and the third sub-pixel 013, thereby improving the resolution of the display device under the condition of meeting the minimum pixel spacing, reducing the granularity of the displayed image, and improving the fineness of the image display. In addition, by adopting the above-mentioned pixel arrangement method, the edge of the display substrate can be arranged with the first sub-pixel 011, the second sub-pixel 012 and the third sub-pixel 013, which can improve the color shift phenomenon at the edge of the display substrate.

[0081] In the specific embodiment 5, Fig. 9 As shown, two second sub-pixels 012 and two third sub-pixels 013 form a first sub-pixel 011 group. In the first direction, the first sub-pixels 011 and the first sub-pixel 011 group are arranged alternately; in the second direction, the first sub-pixels 011 and the first sub-pixel 011 group are arranged alternately; the pixels of two adjacent rows are arranged with a predetermined width; in the third direction, the third sub-pixels 013 are arranged sequentially; in the fourth direction, the second sub-pixels 012 are arranged sequentially. Of course, the second sub-pixels 012 can also be arranged sequentially in the third direction; and the third sub-pixels 013 can be arranged sequentially in the fourth direction.

[0082] A line connecting the centers of two adjacent first sub-pixels 011 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels 012 in the first direction is parallel to the first direction, and a line connecting the centers of two adjacent third sub-pixels 013 in the first direction is parallel to the first direction.

[0083] In the third direction, the shortest distances between the edges of two adjacent third sub-pixels 013 in different first sub-pixel 011 groups are equal; in the fourth direction, the shortest distances between the edges of two adjacent second sub-pixels 012 in different first sub-pixel 011 groups are equal.

[0084] In this embodiment, the first sub-pixel 011 may be a rectangle, and the second sub-pixel 012 and the third sub-pixel 013 may be convex polygons, such as convex pentagons.

[0085] This embodiment can double the pixel density of the second sub-pixel 012 and the third sub-pixel 013, thereby improving the resolution of the display device under the condition of meeting the minimum pixel spacing, reducing the graininess of the displayed image, and improving the fineness of the image display. In addition, by adopting the above-mentioned pixel arrangement method, the edge of the display substrate can be arranged with the first sub-pixel 011, the second sub-pixel 012 and the third sub-pixel 013, which can improve the color shift phenomenon at the edge of the display substrate.

[0086] In the specific embodiment six, Fig.10As shown, two second sub-pixels 012 and two third sub-pixels 013 form a first sub-pixel 011 group. In the first direction, the first sub-pixel 011 and the first sub-pixel 011 group are arranged alternately; in the second direction, the first sub-pixel 011 and the first sub-pixel 011 group are arranged alternately; the pixels of two adjacent rows are arranged with a predetermined width staggered; in the third direction, the third sub-pixel 013 and the second sub-pixel 012 are arranged alternately in pairs; in the fourth direction, the third sub-pixel 013 and the second sub-pixel 012 are arranged alternately in pairs. The second sub-pixels 012 and the third sub-pixels 013 arranged in the third direction are symmetrically distributed with respect to the fourth direction, and the second sub-pixels 012 and the third sub-pixels 013 arranged in the fourth direction are symmetrically distributed with respect to the third direction.

[0087] A line connecting the centers of two adjacent first sub-pixels 011 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels 012 in the first direction is parallel to the first direction, and a line connecting the centers of two adjacent third sub-pixels 013 in the first direction is parallel to the first direction.

[0088] In the third direction, the shortest distances between the edges of adjacent third sub-pixels 013 and second sub-pixels 012 in different first sub-pixel 011 groups are all equal; in the fourth direction, the shortest distances between the edges of adjacent third sub-pixels 013 and second sub-pixels 012 in different first sub-pixel 011 groups are all equal.

[0089] In this embodiment, the first sub-pixel 011 may be a rectangle, and the second sub-pixel 012 and the third sub-pixel 013 may be convex polygons, such as convex pentagons.

[0090] This embodiment can double the pixel density of the second sub-pixel 012 and the third sub-pixel 013, thereby improving the resolution of the display device under the condition of meeting the minimum pixel spacing, reducing the graininess of the displayed image, and improving the fineness of the image display. In addition, by adopting the above-mentioned pixel arrangement method, the edge of the display substrate can be arranged with the first sub-pixel 011, the second sub-pixel 012 and the third sub-pixel 013, which can improve the color shift phenomenon at the edge of the display substrate.

[0091] In the specific embodiment 7, Fig.11As shown, two second sub-pixels 012 and two third sub-pixels 013 form a first sub-pixel 011 group, and in the first direction, the first sub-pixels 011 and the first sub-pixel 011 group are arranged alternately; in the second direction, the first sub-pixel 011 and the first sub-pixel 011 group are arranged alternately; the pixels of two adjacent rows are arranged with a staggered predetermined width; in the third direction, the second sub-pixels 012 and the third sub-pixels 013 are arranged alternately; in the fourth direction, the second sub-pixels 012 and the third sub-pixels 013 are arranged alternately.

[0092] A line connecting the centers of two adjacent first sub-pixels 011 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels 012 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent third sub-pixels 013 in the first direction is parallel to the first direction, and in each of the pixel rows, the second sub-pixels 012 are located on a first side of the first line, the third sub-pixel 013 is located on a second side of the first line, and the first line is a line connecting the centers of adjacent first sub-pixels 011.

[0093] In the third direction, the shortest distances between the edges of adjacent second sub-pixels 012 are equal, and the shortest distances between the edges of adjacent third sub-pixels 013 are equal; in the fourth direction, the shortest distances between the edges of adjacent second sub-pixels 012 are equal, and the shortest distances between the edges of adjacent third sub-pixels 013 are equal. In the first direction, the shortest distances between the edges of adjacent first sub-pixels 011 are equal; in the second direction, the shortest distances between the edges of adjacent first sub-pixels 011 are equal.

[0094] In this embodiment, the first sub-pixel 011 may be a rectangle, and the second sub-pixel 012 and the third sub-pixel 013 may be convex polygons, such as convex pentagons.

[0095] This embodiment can double the pixel density of the second sub-pixel 012 and the third sub-pixel 013, thereby improving the resolution of the display device under the condition of meeting the minimum pixel spacing, reducing the granularity of the displayed image, and improving the fineness of the image display. In addition, by adopting the above-mentioned pixel arrangement method, the edge of the display substrate can be arranged with the first sub-pixel 011, the second sub-pixel 012 and the third sub-pixel 013, which can improve the color shift phenomenon at the edge of the display substrate.

[0096] In the specific embodiment eight, Fig.12As shown, two second sub-pixels 012 and two third sub-pixels 013 form a first sub-pixel 011 group. In the first direction, the first sub-pixels 011 and the first sub-pixel 011 group are arranged alternately; in the second direction, the first sub-pixels 011 and the first sub-pixel 011 group are arranged alternately; the pixels of two adjacent rows are arranged with a predetermined width; in the third direction, the third sub-pixels 013 are arranged sequentially; in the fourth direction, the second sub-pixels 012 are arranged sequentially. Of course, the second sub-pixels 012 can also be arranged sequentially in the third direction; and the third sub-pixels 013 can be arranged sequentially in the fourth direction.

[0097] A line connecting the centers of two adjacent first sub-pixels 011 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels 012 in the first direction is parallel to the first direction, and a line connecting the centers of two adjacent third sub-pixels 013 in the first direction is parallel to the first direction.

[0098] In the third direction, the shortest distances between the edges of two adjacent third sub-pixels 013 in different groups of first sub-pixels 011 are equal; in the fourth direction, the shortest distances between the edges of two adjacent second sub-pixels 012 in different groups of first sub-pixels 011 are equal. In the first direction, the shortest distances between the edges of adjacent first sub-pixels 011 are equal; in the second direction, the shortest distances between the edges of adjacent first sub-pixels 011 are equal.

[0099] In this embodiment, the first sub-pixel 011 may be a rectangle, and the second sub-pixel 012 and the third sub-pixel 013 may be convex polygons, such as convex pentagons.

[0100] This embodiment can double the pixel density of the second sub-pixel 012 and the third sub-pixel 013, thereby improving the resolution of the display device under the condition of meeting the minimum pixel spacing, reducing the graininess of the displayed image, and improving the fineness of the image display. In addition, by adopting the above-mentioned pixel arrangement method, the edge of the display substrate can be arranged with the first sub-pixel 011, the second sub-pixel 012 and the third sub-pixel 013, which can improve the color shift phenomenon at the edge of the display substrate.

[0101] In the specific embodiment 9, Fig.13As shown, two second sub-pixels 012 and two third sub-pixels 013 form a first sub-pixel 011 group. In the first direction, the first sub-pixel 011 and the first sub-pixel 011 group are arranged alternately; in the second direction, the first sub-pixel 011 and the first sub-pixel 011 group are arranged alternately; the pixels of two adjacent rows are arranged with a predetermined width staggered; in the third direction, the third sub-pixel 013 and the second sub-pixel 012 are arranged alternately in pairs; in the fourth direction, the third sub-pixel 013 and the second sub-pixel 012 are arranged alternately in pairs. The second sub-pixels 012 and the third sub-pixels 013 arranged in the third direction are symmetrically distributed with respect to the fourth direction, and the second sub-pixels 012 and the third sub-pixels 013 arranged in the fourth direction are symmetrically distributed with respect to the third direction.

[0102] A line connecting the centers of two adjacent first sub-pixels 011 in the first direction is parallel to the first direction, a line connecting the centers of two adjacent second sub-pixels 012 in the first direction is parallel to the first direction, and a line connecting the centers of two adjacent third sub-pixels 013 in the first direction is parallel to the first direction.

[0103] In the third direction, the shortest distances between the edges of the third sub-pixels 013 and the second sub-pixels 012 adjacent to each other in different groups of first sub-pixels 011 are equal; in the fourth direction, the shortest distances between the edges of the third sub-pixels 013 and the second sub-pixels 012 adjacent to each other in different groups of first sub-pixels 011 are equal. In the first direction, the shortest distances between the edges of the adjacent first sub-pixels 011 are equal; in the second direction, the shortest distances between the edges of the adjacent first sub-pixels 011 are equal.

[0104] In this embodiment, the first sub-pixel 011 may be a rectangle, and the second sub-pixel 012 and the third sub-pixel 013 may be convex polygons, such as convex pentagons.

[0105] This embodiment can double the pixel density of the second sub-pixel 012 and the third sub-pixel 013, thereby improving the resolution of the display device under the condition of meeting the minimum pixel spacing, reducing the graininess of the displayed image, and improving the fineness of the image display. In addition, by adopting the above-mentioned pixel arrangement method, the edge of the display substrate can be arranged with the first sub-pixel 011, the second sub-pixel 012 and the third sub-pixel 013, which can improve the color shift phenomenon at the edge of the display substrate.

[0106] Table 1 shows the granularity indexes of the GGRB structure display product with a pixel density of 400, the Magic structure display product, the Diamond structure display product and the display product of Example 9, wherein in the display product of Example 9, the aperture ratio of the third sub-pixel 013 is 7.96%, the aperture ratio of the second sub-pixel 012 is 7.96%, the aperture ratio of the first sub-pixel 011 is 13.74%, the total aperture ratio is 29.66%, and the pixel defining layer interval is 19 microns. It can be seen that the display product of Example 9 can improve the granularity index.

[0107] Table 1

[0108] GGRB structure Magic Structure Diamond Structure Embodiment 9 Graininess 4.357 3.878 3.714 2.422

[0109] Fig.14 This is a schematic diagram of the display effect of the existing Magic pixel structure display product. Fig.15 This is a schematic diagram of the display screen effect of the display substrate of Example 9 of the present invention. It can be seen that compared with the GGRB structure display product, the Magic structure display product, and the Diamond structure display product, this embodiment can improve the edge color deviation phenomenon of the display substrate.

[0110] In this embodiment, the geometric center line of the second sub-pixel 012 and the third sub-pixel 013 is an octagon surrounding the first sub-pixel 011, and the angle between the geometric center line of the adjacent second sub-pixel 012 and the third sub-pixel 013 and the first sub-pixel 011 is 10° to 80°, and the optimal angle is 45°, so that the second sub-pixel 012 and the third sub-pixel 013 can be evenly arranged, and the distribution of the brightness center can be more uniform, thereby improving the display effect of the display device. In a specific example, as Fig.16 As shown, the angles between the geometric center lines of the adjacent second sub-pixel 012 and third sub-pixel 013 and the first sub-pixel 011 are 53° and 37° respectively; in another specific example, as Fig.17 As shown, the angles between the geometric center lines of the adjacent second sub-pixel 012 and the third sub-pixel 013 and the first sub-pixel 011 are 49° and 41° respectively; in another specific example, as Fig.18 As shown, the angles between the lines connecting the geometric centers of adjacent second sub-pixels 012 and third sub-pixels 013 and the first sub-pixel 011 are all 45°, that is, each of the first sub-pixels 011 is surrounded by eight second sub-pixels 012 and third sub-pixels 013, and the lines connecting the geometric centers of the eight second sub-pixels 012 and third sub-pixels 013 are regular octagons.

[0111] Based on the same disclosed concept, an embodiment of the present invention further provides an organic electroluminescent display panel, including the display substrate as described above.

[0112] In some embodiments, a pixel defining layer is further included, and the pixel defining layer includes a plurality of pixel defining layer openings, each of the first sub-pixels 011, each of the second sub-pixels 012, and each of the third sub-pixels 013 corresponds to a pixel defining layer opening, respectively, and the shapes of the first sub-pixel 011, the second sub-pixel 012, and the third sub-pixel 013 are substantially the same as the shapes of the openings of the corresponding pixel defining layers.

[0113] In some embodiments, the first sub-pixel 011 includes a multi-layer film layer, and the multi-layer film layer of the first sub-pixel 011 at least partially covers the area outside the pixel defining layer opening; and / or the second sub-pixel 012 includes a multi-layer film layer, and the multi-layer film layer of the second sub-pixel 012 at least partially covers the area outside the pixel defining layer opening; and / or the third sub-pixel 013 includes a multi-layer film layer, and the multi-layer film layer of the third sub-pixel 013 at least partially covers the area outside the pixel defining layer opening.

[0114] Based on the same disclosed concept, the embodiments of the present disclosure further provide a display device, including any of the above-mentioned organic electroluminescent display panels provided in the embodiments of the present disclosure. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc. The implementation of the display device can refer to the embodiments of the above-mentioned display panel, and the repeated parts will not be repeated.

[0115] It should be noted that each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the embodiments, since they are basically similar to the product embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the product embodiments.

[0116] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0117] It will be understood that when an element such as a layer, film, region, or substrate is referred to as being “on” or “under” another element, it can be “directly on” or “under” the other element or intervening elements may be present.

[0118] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0119] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display substrate, characterized in that: comprising a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels of different colors, In a first direction, the first sub-pixels and the first sub-pixel group are alternately arranged to form a pixel row, and the first sub-pixel group includes two of the second sub-pixels and two of the third sub-pixels; in a second direction perpendicular to the first direction, the first sub-pixels and the first sub-pixel group are alternately arranged to form a pixel column; The first sub-pixels of two adjacent rows of pixels are staggered with a predetermined width, the second sub-pixels and the third sub-pixels are arranged along a third direction and a fourth direction, the angle between the third direction and the first direction is 45°, and the angle between the fourth direction and the second direction is 135°.

2. The display substrate according to claim 1, characterized in that: A line connecting centers of two adjacent first sub-pixels in the first direction is parallel to the first direction, a line connecting centers of two adjacent second sub-pixels in the first direction is parallel to the first direction, and a line connecting centers of two adjacent third sub-pixels in the first direction is parallel to the first direction.

3. The display substrate according to claim 1, characterized in that: In the third direction, the second sub-pixels and the third sub-pixels are arranged alternately; in the fourth direction, the second sub-pixels and the third sub-pixels are arranged alternately; In each of the pixel rows, the second sub-pixel is located on a first side of a first connecting line, and the third sub-pixel is located on a second side of the first connecting line. The first connecting line is a connecting line connecting centers of adjacent first sub-pixels.

4. The display substrate according to claim 1, characterized in that: In the third direction, the second sub-pixels are arranged in sequence; in the fourth direction, the third sub-pixels are arranged in sequence.

5. The display substrate according to claim 1, characterized in that: In the third direction, the second sub-pixels and the third sub-pixels are arranged alternately in pairs, and in the fourth direction, the second sub-pixels and the third sub-pixels are arranged alternately in pairs, the second sub-pixels and the third sub-pixels arranged in the third direction are symmetrically distributed with respect to the fourth direction, and the second sub-pixels and the third sub-pixels arranged in the fourth direction are symmetrically distributed with respect to the third direction.

6. The display substrate according to any one of claims 3 to 5, characterized in that: The first sub-pixel is circular, and the second sub-pixel and the third sub-pixel are elliptical; In the third direction and the fourth direction, distances between geometric centers of adjacent sub-pixels are equal.

7. The display substrate according to any one of claims 3 to 5, characterized in that: The first sub-pixel is a rectangle, the second sub-pixel and the third sub-pixel are convex polygons, and the shortest distances between the edges of the adjacent second sub-pixels and the third sub-pixels in the third direction and the fourth direction are equal.

8. The display substrate according to any one of claims 3 to 5, characterized in that: The first sub-pixel is a rectangle, the second sub-pixel and the third sub-pixel are convex polygons, and the shortest distances between the edges of adjacent sub-pixels in the third direction and the fourth direction are equal.

9. The display substrate according to claim 1, characterized in that: The first sub-pixel is a blue sub-pixel, the second sub-pixel is selected from one of a red sub-pixel and a green sub-pixel, and the third sub-pixel is selected from the other of the red sub-pixel and the green sub-pixel.

10. The display substrate according to claim 1, characterized in that: Each of the first sub-pixels is surrounded by eight of the second sub-pixels and the third sub-pixels, and a line connecting geometric centers of the eight second sub-pixels and the third sub-pixels forms a regular octagon.

11. An organic electroluminescent display panel, characterized in that: Comprising the display substrate as described in any one of claims 1-10.

12. The organic electroluminescent display panel according to claim 11, characterized in that: It also includes a pixel defining layer, which includes a plurality of pixel defining layer openings, each of the first sub-pixels, each of the second sub-pixels, and each of the third sub-pixels corresponds to a pixel defining layer opening, and the shapes of the first sub-pixels, the second sub-pixels, and the third sub-pixels are substantially the same as the opening shapes of the corresponding pixel defining layers.

13. The organic electroluminescent display panel according to claim 11, characterized in that: The first sub-pixel includes a multi-layer film layer, and the multi-layer film layer of the first sub-pixel at least partially covers the area outside the opening of the pixel definition layer; and / or the second sub-pixel includes a multi-layer film layer, and the multi-layer film layer of the second sub-pixel at least partially covers the area outside the opening of the pixel definition layer; And / or, the third sub-pixel includes a multi-layer film layer, and the multi-layer film layer of the third sub-pixel at least partially covers the area outside the opening of the pixel defining layer.

14. A display device, characterized in that: Comprising the organic electroluminescent display panel as described in any one of claims 11 to 13.

Images