Pixel arrangement structure, display substrate and display device

Abstract

A pixel arrangement structure, a display substrate and a display device. The pixel arrangement structure comprises a plurality of minimum repeating units arranged in an array along a row direction and a column direction; each minimum repeating unit comprises a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, a first connecting line between the center of the first color sub-pixel and the center of the second color sub-pixel extends along a first direction, a second connecting line between the center of the first color sub-pixel and the center of the third color sub-pixel extends along a second direction, and the first direction is perpendicular to the second direction. Thus, the pixel arrangement structure can improve the resolution of the display device using the pixel arrangement structure, and also can improve the display effect.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to a pixel arrangement structure, a display substrate and a display device. BACKGROUND

[0002] With the continuous development of display technology, people's requirements for the resolution of display devices are also getting higher and higher. Due to the advantages of display quality, the application range of high-resolution display devices is also getting wider and wider. Generally, the resolution of a display device can be improved by reducing the size of a pixel and reducing the distance between pixels. However, the reduction of the size of a pixel and the distance between pixels requires higher and higher precision of the manufacturing process, which will lead to an increase in the difficulty and cost of the manufacturing process of the display device.

[0003] On the other hand, the Sup-Pixel Rendering (SPR) technology can utilize the difference in the resolution of different color sub-pixels of the human eye, change the mode of defining a pixel by the conventional red, green and blue three-color sub-pixels, and by sharing some position resolution-insensitive color sub-pixels between different pixels, use a relatively small number of sub-pixels to simulate the same pixel resolution performance, thereby reducing the difficulty and cost of the manufacturing process. SUMMARY

[0004] Embodiments of the present disclosure provide a pixel arrangement structure, a display substrate and a display device. The pixel arrangement structure comprises a plurality of minimum repeating units arranged in an array along a row direction and a column direction; each minimum repeating unit comprises a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, a first connecting line between the center of the first color sub-pixel and the center of the second color sub-pixel extends along a first direction, a second connecting line between the center of the first color sub-pixel and the center of the third color sub-pixel extends along a second direction, and the first direction is perpendicular to the second direction. Thus, the pixel arrangement structure can improve the resolution of the display device using the pixel arrangement structure, and also improve the display effect.

[0005] At least one embodiment of the present disclosure provides a pixel arrangement structure comprising a plurality of minimum repeating units arranged in an array along a row direction and a column direction, each minimum repeating unit comprising a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, a first connecting line between the center of the first color sub-pixel and the center of the second color sub-pixel extending along a first direction, a second connecting line between the center of the first color sub-pixel and the center of the third color sub-pixel extending along a second direction, and the first direction being perpendicular to the second direction.

[0006] For example, in a pixel arrangement structure provided in an embodiment of this disclosure, the length of the second color sub-pixel in the second direction is greater than the length of the first color sub-pixel in the second direction, and the length of the third color sub-pixel in the first direction is greater than the length of the first color sub-pixel in the first direction.

[0007] For example, in a pixel arrangement structure provided in one embodiment of this disclosure, the first direction is parallel to the row direction, and the second direction is parallel to the column direction.

[0008] For example, in a pixel arrangement structure provided in one embodiment of this disclosure, the angle between the first direction and the row direction is 45 degrees, and the angle between the second direction and the column direction is 45 degrees.

[0009] For example, in a pixel arrangement structure provided in one embodiment of this disclosure, the length of the first connecting line is equal to the length of the second connecting line.

[0010] For example, in a pixel arrangement structure provided in an embodiment of this disclosure, the first color sub-pixel is a green sub-pixel, the second color sub-pixel is a blue sub-pixel, and the third color sub-pixel is a red sub-pixel.

[0011] For example, in a pixel arrangement structure provided in one embodiment of this disclosure, the size of the blue sub-pixel is larger than the size of the red sub-pixel.

[0012] For example, in a pixel arrangement structure provided in one embodiment of this disclosure, the shape of the second color sub-pixel includes a hexagon or a hexagon with rounded corners at each vertex, and the shape of the third color sub-pixel includes a hexagon or a hexagon with rounded corners at each vertex.

[0013] For example, in a pixel arrangement structure provided in an embodiment of this disclosure, the shape of the second color sub-pixel has a first axis of symmetry and a second axis of symmetry. The length of the second color sub-pixel in the direction of the first axis of symmetry is greater than the length of the second color sub-pixel in the direction of the second axis of symmetry. The first axis of symmetry is perpendicular to the first connecting line. The second axis of symmetry is perpendicular to the first axis of symmetry and is on the same straight line as the first connecting line. The shape of the third color sub-pixel has a third axis of symmetry and a fourth axis of symmetry. The length of the third color sub-pixel in the direction of the third axis of symmetry is greater than the length of the third color sub-pixel in the direction of the fourth axis of symmetry. The third axis of symmetry is perpendicular to the second connecting line. The fourth axis of symmetry is perpendicular to the third axis of symmetry and is on the same straight line as the second connecting line.

[0014] For example, in a pixel arrangement structure provided in an embodiment of this disclosure, the edge of the second color sub-pixel near the third color sub-pixel is parallel to the edge of the third color sub-pixel near the second color sub-pixel, the edge of the second color sub-pixel near the first color sub-pixel is parallel to the edge of the first color sub-pixel near the second color sub-pixel, and the edge of the third color sub-pixel near the first color sub-pixel is parallel to the edge of the first color sub-pixel near the third color sub-pixel.

[0015] For example, in a pixel arrangement structure provided in one embodiment of this disclosure, the shape of the first color sub-pixel includes a square or a square with rounded corners at each vertices.

[0016] For example, in a pixel arrangement structure provided in one embodiment of this disclosure, the shortest distance between the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel is equal.

[0017] For example, in a pixel arrangement structure provided in one embodiment of this disclosure, the shape of the second color sub-pixel is the same as the shape of the third color sub-pixel, and the shapes of the second color sub-pixel and the third color sub-pixel are symmetrical about the diagonal line of the shape of the first color sub-pixel located within the bisector of the right angle formed by the first connecting line and the second connecting line.

[0018] At least one embodiment of this disclosure also provides a display substrate, which includes the pixel arrangement structure described in any one of the preceding claims.

[0019] For example, in a display substrate provided in one embodiment of this disclosure, the display substrate further includes a substrate; a plurality of pixels on the substrate; and each pixel includes one of the minimum repeating units.

[0020] For example, in a display substrate provided in an embodiment of this disclosure, the first color sub-pixel includes a first color pixel electrode and a first color light-emitting layer disposed on the first color pixel electrode; the second color sub-pixel includes a second color pixel electrode and a second color light-emitting layer disposed on the second color pixel electrode; the third color sub-pixel includes a third color pixel electrode and a third color light-emitting layer disposed on the third color pixel electrode; the first color pixel electrode is configured to drive the first color light-emitting layer to emit light; the second color pixel electrode is configured to drive the second color light-emitting layer to emit light; and the third color pixel electrode is configured to drive the third color light-emitting layer to emit light.

[0021] For example, in a display substrate provided in one embodiment of this disclosure, the first color sub-pixel includes a first color filter, the second color sub-pixel includes a second color filter, and the third color sub-pixel includes a third color filter.

[0022] At least one embodiment of this disclosure provides a display device comprising the display substrate described in any of the preceding claims. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0024] Figure 1 This is a schematic diagram of a pixel arrangement structure;

[0025] Figure 2 This is a schematic diagram of another pixel arrangement structure;

[0026] Figure 3A This is a schematic diagram of a pixel arrangement structure provided in an embodiment of the present disclosure;

[0027] Figure 3B This is a schematic diagram of another pixel arrangement structure provided in an embodiment of the present disclosure;

[0028] Figure 4 This is a schematic diagram of another pixel arrangement structure provided in an embodiment of the present disclosure;

[0029] Figure 5 This is a schematic diagram of the structure of a display substrate provided in an embodiment of the present disclosure;

[0030] Figure 6 This is a schematic diagram of the structure of a display substrate provided in an embodiment of the present disclosure; and

[0031] Figure 7 A display substrate according to an embodiment of the present disclosure is provided along... Figure 6 A cross-sectional view along the A-A' direction; and

[0032] Figure 8 A display substrate according to an embodiment of the present disclosure is provided along... Figure 6 A cross-sectional view along the A-A' direction. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0034] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0035] In their research, the inventors of this application noted that while SPR technology can currently be used to improve the resolution of display devices, some products or certain graphic images are not suitable for SPR technology. For example, details such as the hands of an electronic watch display using SPR technology would lose the smooth and sharp feel of fine hand graphics. Therefore, there is a significant market demand for products with truly high resolution.

[0036] To create high-resolution displays, it is necessary to reduce the size of pixels and the spacing between them. However, reducing pixel size and spacing places increasingly higher demands on the precision of the manufacturing process, leading to increased manufacturing difficulty and costs. For example, in manufacturing high-resolution active-matrix organic light-emitting diode (AMOLED) displays, the limitations of the fine metal mask (FMM) technology result in significant manufacturing challenges and high costs.

[0037] Figure 1 This is a schematic diagram of a pixel arrangement structure. (Example) Figure 1 As shown, the pixel arrangement structure includes three strip-shaped sub-pixels 11, 12, and 13, which together constitute a pixel unit 10. For example, the three strip-shaped sub-pixels include a red (R) sub-pixel 13, a green (G) sub-pixel 11, and a blue (B) sub-pixel 12. Figure 1As shown, in the first direction, red sub-pixel 11, green sub-pixel 12, and blue sub-pixel 13 are arranged sequentially, meaning that one pixel unit requires three strip-shaped sub-pixels in the first direction; however, as Figure 1 As shown, a pixel unit has only one stripe sub-pixel (red sub-pixel 13, green sub-pixel 11, or blue sub-pixel 12) arranged in the second direction. Since a pixel unit needs to arrange three stripe sub-pixels in the first direction, the manufacturing of this pixel arrangement structure is more difficult and costly. In addition, under certain process precision constraints, the manufacturing difficulty of a pixel unit in the first direction is different from that in the second direction; therefore, the process precision in the second direction is not fully utilized.

[0038] Figure 2 This is a schematic diagram of another pixel arrangement structure. (Example) Figure 2 As shown, this pixel arrangement structure includes three strip-shaped sub-pixels 11, 12, and 13, which constitute one pixel unit 10. For example, the three strip-shaped sub-pixels include a red (R) sub-pixel 13, a green (G) sub-pixel 11, and a blue (B) sub-pixel 12. For example, as... Figure 2 As shown, red sub-pixels 13 and green sub-pixels 11 are arranged in the first direction, and blue sub-pixels 12 are arranged in the second direction along with red sub-pixels 13 and green sub-pixels 11. The blue sub-pixels 12 extend along the first direction, and their length in the first direction is equal to the sum of the lengths of red sub-pixels 13 and green sub-pixels 11 in the first direction. Therefore, this pixel arrangement structure balances the distribution of red sub-pixels 13, green sub-pixels 11, and blue sub-pixels 12 in both directions (the first and second directions), ensuring that each pixel unit has only two sub-pixels arranged in both directions. Thus, this pixel arrangement structure improves resolution on the one hand, and fully utilizes the process precision in the second direction on the other. However, in this pixel arrangement structure, the three sub-pixels are unevenly and asymmetrically distributed in the first and second directions; furthermore, the distance from the center of blue sub-pixels 12 to the center of green sub-pixels 11 is inconsistent with the distance from the center of red sub-pixels 13 to the center of green sub-pixels 11; therefore, problems such as uneven color distribution are easily generated. In addition, the blue sub-pixel 12 is larger in size and easier to manufacture; while the red sub-pixel 13 and the green sub-pixel 11 are smaller in size and more difficult to manufacture.

[0039] This disclosure provides a pixel arrangement structure, a display substrate, and a display device. The pixel arrangement structure comprises a plurality of minimum repeating units arranged in an array along row and column directions. Each minimum repeating unit includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. A first line connecting the center of the first color sub-pixel and the center of the second color sub-pixel extends along a first direction, and a second line connecting the center of the first color sub-pixel and the center of the third color sub-pixel extends along a second direction, with the first direction perpendicular to the second direction. Therefore, by arranging the first, second, and third color sub-pixels in two directions (the first and second directions), this pixel arrangement structure arranges only two sub-pixels within a pixel unit in either the first or second direction, thereby improving the resolution of the display device employing this pixel arrangement structure and providing a display device with true high resolution. Furthermore, the centers of the second and third color sub-pixels are more symmetrical relative to the center of the first color sub-pixel, thus improving the symmetry of the pixel arrangement structure and enhancing the display effect.

[0040] The pixel arrangement structure, display substrate, and display device provided in the embodiments of this disclosure will be described below with reference to the accompanying drawings.

[0041] One embodiment of this disclosure provides a pixel arrangement structure. Figure 3A This is a schematic diagram of a pixel arrangement structure provided according to an embodiment of the present disclosure. Figure 3A As shown, the pixel arrangement structure includes a plurality of minimum repeating units 110 arranged in an array along the row and column directions. Each minimum repeating unit 110 includes a first color sub-pixel 111, a second color sub-pixel 112, and a third color sub-pixel 113; a first line 121 connecting the center of the first color sub-pixel 111 and the center of the second color sub-pixel 112 extends along a first direction, and a second line 122 connecting the center of the first color sub-pixel 111 and the center of the third color sub-pixel 113 extends along a second direction, with the first direction perpendicular to the second direction. It should be noted that the centers of the first, second, and third color sub-pixels mentioned above refer to their geometric centers. In addition, the row and column directions mentioned above are the row and column directions specified for matrix display. It is worth noting that the plurality of minimum repeating units arranged in an array along the row and column directions can form a regular rectangle or other shapes, and this embodiment of the present disclosure is not limited thereto.

[0042] In the pixel arrangement structure provided in this embodiment, the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel are arranged in two directions (the first direction and the second direction), such that only two sub-pixels are arranged in one pixel unit in the first direction or the second direction. This improves the resolution of the pixel arrangement structure and provides a display device with true high resolution. Furthermore, since the first line connecting the center of the first color sub-pixel and the center of the second color sub-pixel extends along the first direction, and the second line connecting the center of the first color sub-pixel and the center of the third color sub-pixel extends along the second direction, and the first direction is perpendicular to the second direction, the centers of the second color sub-pixel and the third color sub-pixel are more symmetrical relative to the center of the first color sub-pixel. Therefore, the pixel arrangement structure has better symmetry and improves the display effect.

[0043] For example, in some examples, the aforementioned minimum repeating unit can be translated and repeated to form a complete pixel arrangement structure. It should be noted that the minimum repeating unit does not include sub-units that can be translated and repeated. Furthermore, in the embodiments of this disclosure, the aforementioned minimum repeating unit is a pixel; that is, a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel constitute a pixel. It is worth noting that since the manufacturing process of OLED products requires the use of a fine metal mask (FMM) to form the light-emitting layer, and the current process precision of FMMs is relatively low, the pixel arrangement structure provided in the embodiments of this invention can significantly reduce the manufacturing cost of OLED products using this pixel arrangement structure and improve the resolution of OLED products using this pixel arrangement structure.

[0044] For example, in some examples, the first color subpixel is a green subpixel, the second color subpixel is a blue subpixel, and the third color subpixel is a red subpixel. Since the human eye is more sensitive to green, when observing a pixel composed of red, green, and blue subpixels, the human eye will perceive the green subpixel as the center of the pixel. Therefore, when the first line connecting the center of the green subpixel and the center of the red subpixel extends along a first direction, and the second line connecting the center of the green subpixel and the center of the blue subpixel extends along a second direction, with the first direction perpendicular to the second direction, the centers of the red and blue subpixels are more symmetrical relative to the center of the green subpixel. This results in a more uniform distribution of red and blue subpixels compared to the green subpixel, leading to a better display effect.

[0045] For example, in some examples, such as Figure 3A As shown, the length of the second color sub-pixel 112 in the second direction is greater than the length of the first color sub-pixel 111 in the second direction, and the length of the third color sub-pixel 113 in the first direction is greater than the length of the first color sub-pixel 111 in the first direction. Figure 3BThis is a schematic diagram of another pixel arrangement structure provided according to an embodiment of the present disclosure. Figure 3B The pixel arrangement structure shown is similar to Figure 3A The same, in order to clearly indicate Figure 3B The pixel arrangement structure shown represents the positional relationship of each structure. Figure 3B The labels of each structure in the pixel arrangement structure have been omitted. For example... Figure 3B As shown, by setting the length of the second color sub-pixel in the second direction to be greater than the length of the first color sub-pixel in the second direction, and the length of the third color sub-pixel in the first direction to be greater than the length of the first color sub-pixel in the first direction, the distance D1 between the second color sub-pixel and the third color sub-pixel can be made closer to the distance D2 between the first color sub-pixel and the second color sub-pixel. This makes full use of the space within the smallest repeating unit and also makes full use of the process precision of the equipment used to manufacture the pixel arrangement structure.

[0046] For example, in some examples, such as Figure 3A and Figure 3B As shown, the first direction is parallel to the row direction, and the second direction is parallel to the column direction. That is, the first line 121 connecting the center of the first color sub-pixel 111 and the center of the second color sub-pixel 112 extends along the row direction, and the second line 122 connecting the center of the first color sub-pixel 111 and the center of the third color sub-pixel 113 extends along the column direction.

[0047] For example, in some examples, such as Figure 3B As shown, the length L1 of the first connecting line 121 is equal to the length L2 of the second connecting line 122. Therefore, the distance between the center of the first color sub-pixel and the center of the second color sub-pixel, and the distance between the center of the first color sub-pixel and the center of the third sub-pixel, are equal. This further improves the symmetry of the second and third color sub-pixels with respect to the first color sub-pixel, thereby enhancing the display effect of the pixel arrangement structure. It should be noted that when the length of the first connecting line is equal to the length of the second connecting line, the size or area of ​​the second color sub-pixel can be different from that of the third color sub-pixel. For example, the width of the second color sub-pixel in the first direction and the width of the third color sub-pixel in the second direction can be adjusted as needed, thereby providing second and third color sub-pixels with different sizes or areas.

[0048] For example, when the first color sub-pixel is a green sub-pixel, the second color sub-pixel is a red sub-pixel, and the third color sub-pixel is a blue sub-pixel, the human eye is more sensitive to green, so the human eye will take the green sub-pixel as the center of the pixel. Therefore, when the first line connecting the center of the green sub-pixel and the center of the red sub-pixel extends along the first direction, and the second line connecting the center of the green sub-pixel and the center of the blue sub-pixel extends along the second direction, and the first direction is perpendicular to the second direction, by setting the length of the first line and the length of the second line to be the same, the symmetry of the distribution of red and blue sub-pixels relative to the distribution of green sub-pixels can be further improved, thereby further improving the display effect of the pixel arrangement structure.

[0049] For example, in some cases, the size of the blue subpixel is larger than that of the red subpixel because the blue subpixel typically has a shorter lifespan, thereby extending the lifespan of the blue subpixel.

[0050] For example, in some examples, such as Figure 3A and 3B As shown, the shape of the second color sub-pixel 112 can be hexagonal or a hexagon with rounded corners, and the shape of the second color sub-pixel 113 can also be hexagonal or a hexagon with rounded corners. Therefore, the portion of the second and third color sub-pixels that are close to each other can be a side of a hexagon or a hexagon with rounded corners, thereby increasing the area of ​​the second and third color sub-pixels while maintaining a certain process precision, thus improving the space utilization of the pixel arrangement structure. Of course, embodiments of this disclosure include, but are not limited to, the shape of the second color sub-pixel can be elongated, elliptical, etc.

[0051] For example, in some examples, such as Figure 3A and 3B As shown, the shape of the second color sub-pixel 112 may include a first axis of symmetry and a second axis of symmetry. The length of the second color sub-pixel 112 in the direction of the first axis of symmetry is greater than the length of the second color sub-pixel 112 in the direction of the second axis of symmetry. That is, the first axis of symmetry is the major axis and the second axis of symmetry is the minor axis. The first axis of symmetry is perpendicular to the first connecting line 121, and the second axis of symmetry is perpendicular to the first axis of symmetry and is on the same straight line as the first connecting line 121.

[0052] For example, in some examples, such as Figure 3A and 3BAs shown, the shape of the third color sub-pixel 113 may include a third axis of symmetry and a fourth axis of symmetry. The length of the third color sub-pixel 113 in the direction of the third axis of symmetry is greater than the length of the third color sub-pixel 113 in the direction of the fourth axis of symmetry. That is, the third axis of symmetry is the major axis and the fourth axis of symmetry is the minor axis. The third axis of symmetry is perpendicular to the second connecting line 122, and the fourth axis of symmetry is perpendicular to the third axis of symmetry and is on the same straight line as the second connecting line 122.

[0053] For example, in some examples, such as Figure 3A and 3B As shown, the edge of the second color sub-pixel 112 near the third color sub-pixel 113 is parallel to the edge of the third color sub-pixel 113 near the second color sub-pixel 112. The edge of the second color sub-pixel 112 near the first color sub-pixel 111 is parallel to the edge of the first color sub-pixel 111 near the second color sub-pixel 112, and the edge of the third color sub-pixel 113 near the first color sub-pixel 111 is parallel to the edge of the first color sub-pixel 111 near the third color sub-pixel 113. Therefore, under a given process precision, the area of ​​the second and third color sub-pixels can be further increased, thereby further improving the space utilization of this pixel arrangement structure.

[0054] For example, in some examples, such as Figure 3A and 3B As shown, the shape of the first color sub-pixel 111 can be a square. Of course, embodiments of this disclosure include, but are not limited to, the shape of the first color sub-pixel can be a square with rounded corners at each vertices.

[0055] For example, in some examples, such as Figure 3A and 3B As shown, the shortest distances between the first color sub-pixel 111, the second color sub-pixel 112, and the third color sub-pixel 113 are equal. That is, the shortest distances between the first color sub-pixel 111 and the second color sub-pixel 112, and between the first color sub-pixel 111 and the third color sub-pixel 113, are equal to the shortest distances between the second color sub-pixel 112 and the third color sub-pixel 113, thereby maximizing the utilization of process precision.

[0056] For example, in some examples, such as Figure 3A and 3B As shown, the shapes of the second color sub-pixel 112 and the third color sub-pixel 113 are identical, and their shapes are symmetrical about the diagonal of the first color sub-pixel 111 located within the right angle formed by the first connecting line 121 and the second connecting line 122. This further improves the symmetry and uniformity of the pixel arrangement structure, thereby further enhancing the display quality.

[0057] For example, in some examples, such as Figure 3A and 3B As shown, the minimum repeating units 110 are arranged in an array along the row and column directions. In two adjacent minimum repeating units 110 in the first direction, the third line 123 connecting the center of the second color sub-pixel 112 of the minimum repeating unit 110 on the left and the center of the first color sub-pixel 111 of the minimum repeating unit 110 on the right can be on the same straight line as the first line 121; and the length L3 of the third line 123 can also be the same as the length L1 of the first line 121, thereby improving the uniformity of the pixel arrangement structure in the first direction.

[0058] For example, in some examples, such as Figure 4 and 3B As shown, in two adjacent minimum repeating units 110 in the second direction, the fourth line 124 connecting the center of the third color sub-pixel 113 of the minimum repeating unit 110 located on the lower side and the center of the first color sub-pixel 111 of the minimum repeating unit 110 located on the upper side can be on the same straight line as the second line 122; and the length L3 of the fourth line 123 can also be the same as the length L2 of the second line 121, thereby improving the uniformity of the pixel arrangement structure in the second direction.

[0059] Figure 4 This is a schematic diagram of another pixel arrangement structure provided according to an embodiment of the present disclosure. Figure 5 As shown, the first direction forms a 45-degree angle with the row direction, and the second direction forms a 45-degree angle with the column direction. This method avoids colored fringing at the edges of the screen (e.g., blue or red fringing along the row or column direction), thus improving display quality. Furthermore, since the human eye is more sensitive to image quality in the horizontal or vertical directions, but less sensitive to image quality in directions at a 45-degree angle to the horizontal, the overall display quality is improved. It should be noted that when the pixel arrangement structure provided in this example is applied to a display device, the driving signals for each pixel can be obtained through interpolation and other algorithms based on their relative positions to the pixel positions specified in matrix addressing.

[0060] One embodiment of this disclosure also provides a display substrate. Figure 5 This is a schematic diagram of a display substrate according to an embodiment of the present disclosure. The display substrate includes the pixel arrangement structure described in any of the preceding claims. Therefore, the display substrate can improve the resolution of a display device using the display substrate, thereby providing a display device with true high resolution. Furthermore, since the pixel arrangement structure has better symmetry, the display substrate can improve the display effect of the display device using the display substrate.

[0061] For example, such as Figure 5 As shown, the display substrate includes a substrate 101 and a plurality of pixels 200 disposed on the substrate; the plurality of pixels 200 may adopt the pixel arrangement structure provided in the above embodiments. The pixel 200 may be the smallest repeating unit 110 in the above embodiments.

[0062] For example, such as Figure 6 As shown, a pixel 200 includes a minimum repeating unit 110.

[0063] Figure 7 This is a partial structural schematic diagram of another display substrate provided according to an embodiment of the present disclosure. Figure 6 A display substrate according to an embodiment of the present disclosure is provided along... Figure 7 A cross-sectional view along the A-A' direction. (See diagram.) Figure 8 As shown, the first color sub-pixel 111 includes a first color pixel electrode 1110 and a first color emissive layer 1111 disposed on the first color pixel electrode 1110; the second color sub-pixel 112 includes a second color pixel electrode 1120 and a second color emissive layer 1121 disposed on the second color pixel electrode 1120; and the third color sub-pixel 113 includes a third color pixel electrode 1130 and a third color emissive layer 1131 disposed on the third color pixel electrode 1130. Therefore, the display substrate can be an array substrate.

[0064] For example, in some examples, the first color pixel electrode 1110 is configured to drive the first color light-emitting layer 1111 to emit light.

[0065] For example, the shape of the first color pixel electrode 1110 may be the same as the shape of the first color sub-pixel 111. Of course, embodiments of this disclosure include, but are not limited to, the shape of the first color pixel electrode 1110 may be different from the shape of the first color sub-pixel 111, and the shape of the first color sub-pixel 111 may be defined by a pixel definition layer.

[0066] It should be noted that the shape of the first color sub-pixel mentioned above refers to the shape of the light-emitting region of the first color sub-pixel. Furthermore, the specific shape of the first color light-emitting layer can be set according to the fabrication process, and this embodiment is not limited thereto. For example, the shape of the first color light-emitting layer can be determined by the shape of the opening in the mask during the fabrication process.

[0067] For example, in some examples, the second color pixel electrode 1120 is configured to drive the second color light-emitting layer 1121 to emit light.

[0068] For example, the shape of the second color pixel electrode 1120 may be the same as the shape of the second color sub-pixel 112. Of course, embodiments of this disclosure include, but are not limited to, the shape of the second color pixel electrode 1120 may be different from the shape of the first color sub-pixel 112, and the shape of the second color sub-pixel 112 may be defined by a pixel definition layer.

[0069] It should be noted that the shape of the second color sub-pixel mentioned above refers to the shape of the light-emitting region of the second color sub-pixel. Furthermore, the specific shape of the second color light-emitting layer can be set according to the fabrication process, and this embodiment is not limited thereto. For example, the shape of the second color light-emitting layer can be determined by the shape of the opening in the mask during the fabrication process.

[0070] For example, in some examples, the shape of the third color pixel electrode 1130 is configured to drive the third color emitting layer 1131 to emit light.

[0071] For example, the shape of the third color pixel electrode 1130 may be the same as the shape of the third color sub-pixel 113. Of course, embodiments of this disclosure include, but are not limited to, the shape of the third color pixel electrode 1130 may be different from the shape of the third color sub-pixel 113, and the shape of the third color sub-pixel 113 may be defined by a pixel definition layer.

[0072] It should be noted that the shape of the third color sub-pixel mentioned above refers to the shape of the light-emitting region of the third color sub-pixel. Furthermore, the specific shape of the third color light-emitting layer can be set according to the fabrication process, and this embodiment is not limited thereto. For example, the shape of the third color light-emitting layer can be determined by the shape of the opening in the mask during the fabrication process.

[0073] Figure 6 Another display substrate provided according to an embodiment of the present disclosure is along Figure 8 A cross-sectional view along the A-A' direction. (See diagram.) Figure 8 As shown, the first color sub-pixel 111 includes a first color filter 1112, the second color sub-pixel 112 includes a second color filter 1122, and the third color sub-pixel 113 includes a third color filter 1132. Therefore, the display substrate can be a color filter substrate. It should be noted that when the display substrate is a color filter substrate, it can be used not only in liquid crystal display panels but also in display panels employing white OLED combined with a color filter mode.

[0074] For example, in some examples, such as ​ As shown, the display substrate also includes a black matrix 140 disposed between the first color filter 1112, the second color filter 1122 and the third color filter 1132.

[0075] This disclosure also provides a display device in one embodiment. The display device includes any of the display substrates provided in the above embodiments. Therefore, the resolution of the display device can be improved, thereby providing a display device with truly high resolution. Furthermore, due to the better symmetry of the pixel arrangement structure, the display device exhibits better display performance.

[0076] For example, in some examples, the display device can be any product or component with display capabilities, such as a smartphone, tablet, television, monitor, laptop, digital photo frame, or navigator.

[0077] An embodiment of this disclosure also provides a mask template. The mask template is used to form the pixel arrangement structure provided in any of the above examples. The mask template may include a first mask template for forming first color sub-pixels, a second mask template for forming second color sub-pixels, and a third mask template for forming third color sub-pixels.

[0078] For example, a first opening may be provided on the first photomask to form a light-emitting layer of a first color sub-pixel in the vapor deposition process; a second opening may be provided on the second photomask to form a light-emitting layer of a second color sub-pixel in the vapor deposition process; and a third opening may be provided on the third photomask to form a light-emitting layer of a third color sub-pixel in the vapor deposition process.

[0079] The following points need to be explained:

[0080] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0081] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure can be combined with each other.

[0082] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A pixel arrangement structure, comprising: Multiple minimal repeating units are arranged in an array along the row and column directions. Each of the minimum repeating units consists of a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. A first line connecting the center of the first color sub-pixel and the center of the second color sub-pixel extends along a first direction, and a second line connecting the center of the first color sub-pixel and the center of the third color sub-pixel extends along a second direction. The first direction is perpendicular to the second direction. The shape of the second color sub-pixel has a first axis of symmetry and a second axis of symmetry. The length of the second color sub-pixel in the direction of the first axis of symmetry is greater than the length of the second color sub-pixel in the direction of the second axis of symmetry. The first axis of symmetry is perpendicular to the first connecting line, and the second axis of symmetry is perpendicular to the first axis of symmetry and lies on the same straight line as the first connecting line. The shape of the third color sub-pixel has a third axis of symmetry and a fourth axis of symmetry. The length of the third color sub-pixel along the third axis of symmetry is greater than the length of the third color sub-pixel along the fourth axis of symmetry. The third axis of symmetry is perpendicular to the second connecting line, and the fourth axis of symmetry is perpendicular to the third axis of symmetry and lies on the same straight line as the second connecting line. The two second color sub-pixel blocks adjacent to the first color sub-pixel block are located on either side of the first color sub-pixel block in the extension direction of the first connecting line; the two third color sub-pixel blocks adjacent to the first color sub-pixel block are located on either side of the first color sub-pixel block in the extension direction of the second connecting line. The first color sub-pixel has a shape that includes a square or a square with rounded corners; the second color sub-pixel has a shape that includes a hexagon or a hexagon with rounded corners; and the third color sub-pixel has a shape that includes a hexagon or a hexagon with rounded corners. The first color sub-pixel includes a first straight edge, a second straight edge, a third straight edge, and a fourth straight edge connected in sequence. The second color sub-pixel includes a fifth straight edge and a sixth straight edge arranged in parallel and spaced apart, a first oblique edge connected to the fifth straight edge, and a second oblique edge connected to the sixth straight edge. The first oblique edge and the second oblique edge are connected. The third color sub-pixel includes a seventh straight edge and an eighth straight edge arranged in parallel and spaced apart, and a third oblique edge and a fourth oblique edge connected to both ends of the seventh straight edge, respectively. The first straight edge and the fifth straight edge are parallel and spaced apart; the second straight edge and the seventh straight edge are parallel and spaced apart; the third straight edge and the sixth straight edge of the second color sub-pixel in the smallest repeating unit adjacent in the first direction are parallel and spaced apart; the fourth straight edge and the eighth straight edge of the third color sub-pixel in the smallest repeating unit adjacent in the second direction are parallel and spaced apart; the first oblique edge and the third oblique edge are parallel and spaced apart; and the second oblique edge and the fourth oblique edge of the third color sub-pixel in the smallest repeating unit adjacent in the first direction are parallel and spaced apart.

2. The pixel arrangement structure according to claim 1, wherein, The length of the second color sub-pixel in the second direction is greater than the length of the first color sub-pixel in the second direction. The length of the third color sub-pixel in the first direction is greater than the length of the first color sub-pixel in the first direction.

3. The pixel arrangement structure according to claim 1, wherein, The first direction is parallel to the row direction, and the second direction is parallel to the column direction.

4. The pixel arrangement structure according to claim 1, wherein, The angle between the first direction and the row direction is 45 degrees, and the angle between the second direction and the column direction is 45 degrees.

5. The pixel arrangement structure according to any one of claims 1-4, wherein, The length of the first connecting line is equal to the length of the second connecting line.

6. The pixel arrangement structure according to any one of claims 1-4, wherein, The first color sub-pixel is a green sub-pixel, the second color sub-pixel is a blue sub-pixel, and the third color sub-pixel is a red sub-pixel.

7. The pixel arrangement structure according to any one of claims 6, wherein, The size of the blue sub-pixel is larger than the size of the red sub-pixel.

8. The pixel arrangement structure according to claim 1, wherein, The edge of the second color sub-pixel closest to the third color sub-pixel is parallel to the edge of the third color sub-pixel closest to the second color sub-pixel. The edge of the second color sub-pixel closest to the first color sub-pixel is parallel to the edge of the first color sub-pixel closest to the second color sub-pixel. The edge of the third color sub-pixel closest to the first color sub-pixel is parallel to the edge of the first color sub-pixel closest to the third color sub-pixel.

9. The pixel arrangement structure according to any one of claims 1-4, wherein, The shape of the first color sub-pixel includes a square or a square with rounded corners at each vertices.

10. The pixel arrangement structure according to any one of claims 1-4, wherein, The shortest distance between the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel is equal.

11. The pixel arrangement structure according to any one of claims 1-4, wherein, The shape of the second color sub-pixel is the same as the shape of the third color sub-pixel. The shapes of the second color sub-pixel and the third color sub-pixel are symmetrical about the diagonal line of the shape of the first color sub-pixel, which lies within the bisector of the right angle formed by the first line and the second line.

12. A display substrate, comprising: The pixel arrangement structure according to any one of claims 1-11.

13. The display substrate according to claim 12, further comprising: Substrate; and Multiple pixels are on the substrate. in, Each pixel comprises one of the smallest repeating units.

14. The display substrate according to claim 13, wherein, The first color sub-pixel includes a first color pixel electrode and a first color emissive layer disposed on the first color pixel electrode; the second color sub-pixel includes a second color pixel electrode and a second color emissive layer disposed on the second color pixel electrode; and the third color sub-pixel includes a third color pixel electrode and a third color emissive layer disposed on the third color pixel electrode. The first color pixel electrode is configured to drive the first color light-emitting layer to emit light. The second color pixel electrode is configured to drive the second color light-emitting layer to emit light. The third color pixel electrode is configured to drive the third color light-emitting layer to emit light.

15. The display substrate according to claim 14, wherein, The first color sub-pixel includes a first color filter, the second color sub-pixel includes a second color filter, and the third color sub-pixel includes a third color filter.

16. A display device comprising a display substrate according to any one of claims 12-15.

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