Array substrate and display device
By alternating the first and second subpixels in an OLED display device and adjusting the shape and aspect ratio of the subpixels, the problems of display fluctuation and jaggedness are solved, achieving higher resolution and better display effect, while reducing manufacturing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BOE TECHNOLOGY GROUP CO LTD
- Filing Date
- 2021-04-30
- Publication Date
- 2026-05-05
AI Technical Summary
The pixel arrangement structure of existing OLED display devices causes fluctuations and jagged edges in the displayed image, affecting resolution and display quality.
The system employs alternating first and second sub-pixels, with the angle between the line connecting the centers of adjacent sub-pixels and the first direction being less than 20 degrees. Combined with sub-pixel rendering technology, the system reduces the sense of fluctuation and jaggedness by setting and adjusting the shape and aspect ratio of the sub-pixels in a staggered manner.
It effectively reduces or eliminates the jaggedness and aliasing of the displayed image, improves resolution and display quality, and reduces the difficulty and cost of manufacturing processes.
Smart Images
Figure CN121985685A_ABST
Abstract
Description
[0001] This application is a divisional application of application number 202180001057.1, which entered the Chinese national phase on May 6, 2021. It is a Chinese national phase patent application of PCT international application PCT / CN2021 / 091626 filed on April 30, 2021, which claims priority to PCT application PCT / CN2021 / 081026 filed on March 16, 2021. The disclosure of the aforementioned patent application is incorporated herein by reference in its entirety. Technical Field
[0002] Embodiments of this disclosure relate to an array substrate and a display device. Background Technology
[0003] With the continuous development of display technology, people's requirements for the display quality of display devices are also increasing. Due to its advantages such as wide color gamut, fast response speed, foldability, flexibility, and high contrast, organic light-emitting diode (OLED) display devices are finding increasingly wider applications. On the other hand, people's requirements for the resolution of OLED display devices are also increasing.
[0004] In organic light-emitting diode (OLED) display devices, the pixel arrangement or pixel arrangement structure has a significant impact on display quality and resolution, and is therefore one of the important directions for research and improvement by major manufacturers. Summary of the Invention
[0005] This disclosure provides an array substrate and a display device. In the array substrate, a first sub-pixel row includes a plurality of first sub-pixels and a plurality of second sub-pixels arranged alternately in a first direction. Since the angle between the line connecting the centers of adjacent first and second sub-pixels in the first sub-pixel row and the first direction is less than 20 degrees, the sub-pixel row has less fluctuation and appears more like a straight line to the human eye. This reduces or even eliminates the "fluctuation" or "jaggedness" of the displayed image and makes the lines of the displayed image more continuous and natural.
[0006] At least one embodiment of this disclosure provides an array substrate comprising: a plurality of first sub-pixel rows, each first sub-pixel row including a plurality of first sub-pixels and a plurality of second sub-pixels alternately arranged in a first direction; and a plurality of second sub-pixel rows, each second sub-pixel row including a plurality of third sub-pixels and a plurality of fourth sub-pixels alternately arranged in the first direction; the plurality of first sub-pixel rows and the plurality of second sub-pixel rows are alternately arranged along a second direction, the second direction intersecting the first direction, wherein in the first sub-pixel rows, the angle between the line connecting the center of an adjacent first sub-pixel and the center of a second sub-pixel and the first direction is less than 20 degrees.
[0007] For example, in an array substrate provided in one embodiment of this disclosure, the first sub-pixel is configured to emit light of a first color, and the second sub-pixel is configured to emit light of a second color, wherein the first color and the second color are the same.
[0008] For example, in an array substrate provided in an embodiment of this disclosure, the third sub-pixel is configured to emit light of a third color, the fourth sub-pixel is configured to emit light of a fourth color, the third color, the fourth color and the first color are different from each other, and the luminous efficiency of the third sub-pixel is greater than that of the fourth sub-pixel.
[0009] For example, an array substrate provided in one embodiment of this disclosure further includes: a plurality of pixel groups, each pixel group including a first color sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel, in each pixel group, a first line connecting the center of the first sub-pixel and the center of the second sub-pixel intersects with a second line connecting the center of the third sub-pixel and the center of the fourth sub-pixel, the plurality of pixel groups are arranged along the first direction to form N pixel group rows, the N pixel group rows are arranged in the second direction, two adjacent pixel group rows are staggered in the first direction, a plurality of first sub-pixels in the i-th pixel group row and a plurality of second sub-pixels in the (i+1)-th pixel group row are alternately arranged in the first direction to form a first sub-pixel row, a plurality of third sub-pixels in the i-th pixel group row and a plurality of fourth sub-pixels are alternately arranged in the first direction to form a second sub-pixel row, N is a positive integer greater than or equal to 3, and i is a positive integer greater than or equal to 1 and less than or equal to N.
[0010] For example, in an array substrate provided in one embodiment of this disclosure, in a first sub-pixel row, the angle between the line connecting the center of an adjacent first sub-pixel and the center of a second sub-pixel and the first direction is less than 15 degrees.
[0011] For example, in an array substrate provided in one embodiment of this disclosure, in a first sub-pixel row, the angle between the line connecting the center of an adjacent first sub-pixel and the center of a second sub-pixel and the first direction is less than or equal to 10 degrees.
[0012] For example, in an array substrate provided in one embodiment of this disclosure, the plurality of first sub-pixels and the plurality of second sub-pixels in a first sub-pixel row all intersect with a first virtual straight line extending along a first direction.
[0013] For example, in an array substrate provided in one embodiment of this disclosure, the plurality of first sub-pixels and the plurality of second sub-pixels in a first sub-pixel row are uniformly distributed in the first direction.
[0014] For example, in an array substrate provided in one embodiment of this disclosure, the ratio of the maximum size of the third sub-pixel in the second direction to the maximum size of the third sub-pixel in the first direction is less than 2.
[0015] For example, in an array substrate provided in one embodiment of this disclosure, the ratio of the maximum size of the third sub-pixel in the second direction to the maximum size of the third sub-pixel in the first direction is less than 1.2.
[0016] For example, in an array substrate provided in an embodiment of this disclosure, the shape of the effective light-emitting area of the third sub-pixel includes a first parallel side group, the first parallel side group includes a first parallel side and a second parallel side extending along the second direction, in a pixel group, the first parallel side is located on the side of the second parallel side away from the fourth sub-pixel, and the length of the first parallel side is greater than the length of the second parallel side.
[0017] For example, in an array substrate provided in an embodiment of this disclosure, the shape of the effective light-emitting area of the fourth sub-pixel includes a second parallel side group, the second parallel side group including a third parallel side and a fourth parallel side extending along the second direction, in a pixel group, the third parallel side is located on the side of the fourth parallel side away from the third sub-pixel, and the length of the third parallel side is greater than the length of the fourth parallel side.
[0018] For example, in an array substrate provided in an embodiment of this disclosure, the shape of the effective light-emitting area of the third sub-pixel includes a first vertex and a second vertex that are the furthest apart in the second direction. The shape of the effective light-emitting area of the third sub-pixel is divided into a first part and a second part by the line connecting the first vertex and the second vertex. In a pixel group, the first part is located on the side of the second part away from the fourth sub-pixel. The average size of the first part in the second direction is greater than the average size of the second part in the second direction.
[0019] For example, in an array substrate provided in an embodiment of this disclosure, the shape of the effective light-emitting area of the fourth sub-pixel includes a third vertex and a fourth vertex that are the furthest apart in the second direction. The shape of the effective light-emitting area of the fourth sub-pixel is divided into a third part and a fourth part by the line connecting the third vertex and the fourth vertex. In a pixel group, the third part is located on the side of the fourth part away from the third sub-pixel. The average size of the third part in the second direction is greater than the average size of the fourth part in the second direction.
[0020] For example, in an array substrate provided in an embodiment of this disclosure, the shortest distance D1 between the effective light-emitting area of the third sub-pixel in the i-th pixel group row and the effective light-emitting area of the fourth sub-pixel in the (i+1)-th pixel group row is less than twice the shortest distance between the effective light-emitting area of the first sub-pixel and the effective light-emitting area of the third sub-pixel in the same pixel group.
[0021] For example, in an array substrate provided in an embodiment of this disclosure, the shortest distance D1 between the effective light-emitting area of the third sub-pixel in the i-th pixel group row and the effective light-emitting area of the fourth sub-pixel in the (i+1)-th pixel group row is less than 1.5 times the shortest distance between the effective light-emitting area of the first sub-pixel and the effective light-emitting area of the third sub-pixel in the same pixel group.
[0022] For example, in an embodiment of the present disclosure, the shortest distance D2 between the effective light-emitting area of the fourth sub-pixel in the i-th pixel group row and the effective light-emitting area of the third sub-pixel in the (i+1)-th pixel group row is less than twice the shortest distance between the effective light-emitting area of the first sub-pixel and the effective light-emitting area of the fourth sub-pixel in the same pixel group.
[0023] For example, in an array substrate provided in an embodiment of this disclosure, the shortest distance D2 between the effective light-emitting area of the fourth sub-pixel in the i-th pixel group row and the effective light-emitting area of the third sub-pixel in the (i+1)-th pixel group row is less than 1.5 times the shortest distance between the effective light-emitting area of the first sub-pixel and the effective light-emitting area of the fourth sub-pixel in the same pixel group.
[0024] For example, in an array substrate provided in an embodiment of this disclosure, the first sub-pixel in one of the pixel groups in the i-th pixel group row is at least partially located between two adjacent pixel groups in the (i+1)-th pixel group row.
[0025] For example, in an array substrate provided in an embodiment of this disclosure, the i-th pixel group row and the (i+2)-th pixel group row are aligned in a first direction, and a first sub-pixel in the i-th pixel group row and a second sub-pixel in the (i+2)-th pixel group row form a sub-pixel pair, wherein a third line connecting the center of the first sub-pixel and the center of the second sub-pixel in the sub-pixel pair is parallel to the second direction.
[0026] For example, in an array substrate provided in an embodiment of this disclosure, the furthest distance between the effective light-emitting area of the first sub-pixel and the effective light-emitting area of the second sub-pixel in the second direction is greater than the size of the third sub-pixel in the second direction and the size of the fourth sub-pixel in the second direction.
[0027] For example, in an array substrate provided in one embodiment of this disclosure, the light-emitting layer of the first sub-pixel and the light-emitting layer of the second sub-pixel in the sub-pixel pair are integrated into the same light-emitting layer.
[0028] For example, an array substrate provided in one embodiment of this disclosure further includes: spacers located between adjacent first sub-pixels and second sub-pixels in the first sub-pixel row.
[0029] For example, in an array substrate provided in one embodiment of this disclosure, the number of the plurality of second sub-pixel rows is K, and the spacer is also located between the third sub-pixel in the j-th second sub-pixel row and the fourth sub-pixel in the (j+1)-th second sub-pixel row, or the spacer is also located between the fourth sub-pixel in the j-th second sub-pixel row and the third sub-pixel in the (j+1)-th second sub-pixel row, where K is a positive integer greater than or equal to 3, and j is a positive integer greater than or equal to 1 and less than or equal to K.
[0030] At least one embodiment of this disclosure also provides a display device comprising the array substrate described in any of the preceding claims. Attached Figure Description
[0031] 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.
[0032] Figure 1A This is a schematic diagram of an array substrate;
[0033] Figure 1B This is a schematic diagram of a sub-pixel column in an array substrate;
[0034] Figure 2A This is a schematic diagram of an array substrate provided according to an embodiment of the present disclosure;
[0035] Figure 2B This is a schematic diagram illustrating the display effect of a sub-pixel row in an array substrate according to an embodiment of the present disclosure.
[0036] Figure 3A This is a partial schematic diagram of an array substrate provided in an embodiment of the present disclosure;
[0037] Figure 3B An array substrate provided in one embodiment of this disclosure is along Figure 3A A cross-sectional view along the AB direction;
[0038] Figure 4 This is a schematic diagram of another array substrate provided in an embodiment of the present disclosure;
[0039] Figure 5 This is a schematic diagram of another array substrate provided in an embodiment of the present disclosure;
[0040] Figure 6 This is a schematic diagram of another array substrate provided in an embodiment of the present disclosure;
[0041] Figure 7 A schematic diagram of another array substrate provided in an embodiment of this disclosure; and
[0042] Figure 8 This is a schematic diagram of a display device provided according to an embodiment of the present disclosure. Detailed Implementation
[0043] 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.
[0044] 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.
[0045] Typically, display resolution can be improved by reducing pixel size and pixel spacing. However, reducing pixel size and pixel spacing places increasingly higher demands on manufacturing precision, leading to increased manufacturing complexity and costs. On the other hand, Sup-Pixel Rendering (SPR) technology leverages the human eye's varying resolution of different color subpixels. It departs from the conventional approach of simply defining a pixel as red, green, and blue subpixels, instead sharing subpixels of certain resolution-insensitive colors among different pixels. This allows for the simulation of the same pixel resolution with a relatively small number of subpixels, thus reducing manufacturing complexity and costs. However, the pixel arrangement structure employed in SPR can negatively impact display quality, resulting in graininess, fluctuations, and discontinuous lines in the displayed image.
[0046] Figure 1A This is a schematic diagram of an array substrate; Figure 1B This is a schematic diagram of a sub-pixel column in an array substrate. For example... Figure 1A As shown, the array substrate 10 includes a first sub-pixel 11, a second sub-pixel 12, and a third sub-pixel 13. The color of the light emitted by the first sub-pixel 11 can be a color that the human eye is sensitive to; that is, when the human eye performs visual synthesis, the color of the light emitted by the first sub-pixel 11 accounts for a higher proportion. Figure 1B As shown, in the sub-pixel row 20 formed by the first sub-pixel 11 along the first direction, the positions of adjacent first sub-pixels 11 differ greatly in the second direction, that is, the centers of adjacent first sub-pixels 11 are far apart in the second direction; therefore, when the array substrate is used for straight lines, the "wave" or "sawtooth" sensation of the straight line in human vision is stronger, which reduces the quality of the displayed image.
[0047] In response, this disclosure provides an array substrate and a display device. The array substrate includes multiple pixel groups, each pixel group including a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. In each pixel group, a first line connecting the center of the first sub-pixel and the center of the second sub-pixel intersects a second line connecting the center of the third sub-pixel and the center of the fourth sub-pixel. The multiple pixel groups are arranged along a first direction to form N pixel group rows, and the N pixel group rows are arranged in a second direction, with adjacent pixel group rows staggered in the first direction. Multiple first sub-pixels in the i-th pixel group row and multiple second sub-pixels in the (i+1)-th pixel group row are alternately arranged in the first direction to form a sub-pixel row. In a sub-pixel row, the angle between the line connecting the centers of adjacent first and second sub-pixels and the first direction is less than 20 degrees. N is a positive integer greater than or equal to 3, and i is a positive integer greater than or equal to 1 and less than or equal to N. In this array substrate, the first and second sub-pixels can be sub-pixels emitting the same color of light, and this color can be a sub-pixel sensitive to the human eye. Since the angle between the line connecting the center of the first sub-pixel and the center of the second adjacent sub-pixel in this sub-pixel row and the first direction is less than 20 degrees, the sub-pixel row has less fluctuation and is closer to a straight line in human vision. This can reduce or even eliminate the "fluctuation" or "jaggedness" of the displayed image and make the lines of the displayed image more continuous and natural.
[0048] The array substrate and display device provided in the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.
[0049] One embodiment of this disclosure provides an array substrate. Figure 2A This is a schematic diagram of an array substrate provided in one embodiment of the present disclosure. Figure 2B This is a schematic diagram illustrating the display effect of a sub-pixel row in an array substrate according to an embodiment of this disclosure.
[0050] like Figure 2A and 2BAs shown, the array substrate 100 includes a plurality of first sub-pixel rows 310 and a plurality of second sub-pixel rows 320; each first sub-pixel row 310 includes a plurality of first sub-pixels 121 and a plurality of second sub-pixels 122 alternately arranged in a first direction; each second sub-pixel row 320 includes a plurality of third sub-pixels 123 and a plurality of fourth sub-pixels 124 alternately arranged in the first direction; the plurality of first sub-pixel rows 310 and the plurality of second sub-pixel rows 320 are alternately arranged along a second direction. The second direction intersects the first direction, for example, the second direction is perpendicular to the first direction. It should be noted that the above-mentioned "the second direction is perpendicular to the first direction" includes the case where the first direction and the second direction are strictly perpendicular to each other, that is, the angle between the first direction and the second direction is 90 degrees, and also includes the case where the first direction and the second direction are approximately perpendicular to each other, that is, the angle between the first direction and the second direction is in the range of 80-100 degrees.
[0051] like Figure 2A and 2B As shown, in the first sub-pixel row 310, the angle between the line CL connecting the center of the adjacent first sub-pixel 121 and the center of the second sub-pixel 122 and the first direction is less than 20 degrees.
[0052] In the array substrate provided in this embodiment, the first sub-pixel 121 and the second sub-pixel 122 can be sub-pixels that emit the same color of light, and this color can be a sub-pixel that is sensitive to the human eye. Since the angle θ between the line CL connecting the center of adjacent first sub-pixels 121 and the center of adjacent second sub-pixels 122 in the first sub-pixel row 310 and the first direction is less than 20 degrees, the first sub-pixel row 310 has less fluctuation and is closer to a straight line in human vision. This can reduce or even eliminate the "fluctuation" or "jaggedness" of the displayed image, and make the lines of the displayed image more continuous and natural.
[0053] In some examples, such as Figure 2A As shown, the array substrate 100 includes a substrate 110 and a plurality of pixel groups 120 located on the substrate 110; each pixel group 120 includes a first sub-pixel 121, a second sub-pixel 122, a third sub-pixel 123, and a fourth sub-pixel 124. In each pixel group 120, a first line CL1 connecting the center of the first sub-pixel 121 and the center of the second sub-pixel 122 intersects with a second line CL2 connecting the center of the third sub-pixel 123 and the center of the fourth sub-pixel 124. It should be noted that in this pixel group 120, the first sub-pixel 121 and the second sub-pixel 122 can be sub-pixels emitting the same color of light; in addition, the shapes of the first sub-pixel 121 and the second sub-pixel 122 can also be the same, the difference between the first sub-pixel 121 and the second sub-pixel 122 lies in their different positions. Furthermore, the "center" mentioned above refers to the brightness center or geometric center of the effective light-emitting area of the sub-pixel.
[0054] like Figure 2A As shown, multiple pixel groups 120 are arranged along a first direction to form N pixel group rows 210; the N pixel group rows 210 are arranged in a second direction, with adjacent pixel group rows 210 staggered in the first direction. That is, the centers of the orthographic projections of pixel groups with the same ordinal number in two adjacent pixel group rows 210 on a reference line extending along the first direction do not overlap. Therefore, adjacent pixel group rows 210 can be set closer and more compactly in the second direction, thereby improving pixel density or resolution.
[0055] like Figure 2A and Figure 2B As shown, multiple first sub-pixels 121 in the i-th pixel group row 210 and multiple second sub-pixels 122 in the (i+1)-th pixel group row 210 are alternately arranged in the first direction to form the aforementioned first sub-pixel row 310; and in a first sub-pixel row 310, the angle θ between the line CL connecting the center of adjacent first sub-pixels 121 and the center of second sub-pixels 122 and the first direction is less than 20 degrees, N is a positive integer greater than or equal to 3, and i is a positive integer greater than or equal to 1 and less than or equal to N.
[0056] In the array substrate provided in this embodiment, the first sub-pixel 121 and the second sub-pixel 122 can be sub-pixels that emit the same color of light, and this color can be a sub-pixel that is sensitive to the human eye. Since the angle θ between the line CL connecting the center of adjacent first sub-pixels 121 and the center of adjacent second sub-pixels 122 in the first sub-pixel row 310 and the first direction is less than 20 degrees, the first sub-pixel row 310 has less fluctuation and is closer to a straight line in human vision. This can reduce or even eliminate the "fluctuation" or "jaggedness" of the displayed image, and make the lines of the displayed image more continuous and natural.
[0057] In addition, within a pixel group 120, the Sup-Pixel Rendering (SPR) technique can be used to allow the first sub-pixel 121 and the second sub-pixel 122 to borrow from the third sub-pixel 123 and the fourth sub-pixel 124 respectively, in order to simulate the formation of two pixels. This can improve pixel resolution and reduce the difficulty and cost of manufacturing processes.
[0058] For example, multiple third sub-pixels 123 and multiple fourth sub-pixels 124 in the i-th pixel group row 210 are alternately arranged in the first direction to form a second sub-pixel row 320.
[0059] In some examples, the first sub-pixel is configured to emit light of a first color, and the second sub-pixel is configured to emit light of a second color, with the first and second colors being the same. For example, the first sub-pixel 121 and the second sub-pixel 122 are configured to emit green light, meaning that both the first and second colors are green. It should be noted that green light is a light to which the human eye is sensitive; therefore, in human vision, the brightness center of a pixel will be closer to the brightness center of the green sub-pixel.
[0060] In some examples, the third sub-pixel is configured to emit light of a third color, and the fourth sub-pixel is configured to emit light of a fourth color. The third color, the fourth color, and the first color are all different from each other, and the luminous efficiency of the third sub-pixel is greater than that of the fourth sub-pixel. For example, the first and second colors are green, the third color is red, and the fourth color is blue. Of course, embodiments of this disclosure include, but are not limited to, these.
[0061] In some examples, such as Figure 2A As shown, further, in a first sub-pixel row 310, the angle θ between the line CL connecting the centers of adjacent first sub-pixels 121 and second sub-pixels 122 and the first direction is less than 15 degrees. Since the angle CL between the line connecting the centers of adjacent first sub-pixels 121 and second sub-pixels 122 in the first sub-pixel row 310 and the first direction is less than 15 degrees, the fluctuation of the first sub-pixel row 310 can be further reduced, thereby further reducing or even eliminating the "fluctuation" or "jaggedness" of the displayed image.
[0062] In some examples, such as Figure 2A As shown, in a first sub-pixel row 310, the angle θ between the line CL connecting the center of adjacent first sub-pixels 121 and the center of second sub-pixels 122 and the first direction ranges from 9 to 11 degrees, for example, 10 degrees. Therefore, the array substrate can further reduce or even eliminate the "fluctuation" or "jaggedness" of the displayed image by changing the aspect ratio of the third and fourth sub-pixels to make the angle between the connecting line CL and the first direction smaller.
[0063] In some examples, such as Figure 2A and Figure 2B As shown, the orientations of adjacent first sub-pixels 121 and second sub-pixels 122 in the first sub-pixel row 310 are different. That is, after rotating the shape of the orthographic projection of the first sub-pixel 121 on the substrate 110 by a certain angle (e.g., 180 degrees), it is exactly the same as the shape of the orthographic projection of the second sub-pixel 122 on the substrate 110.
[0064] In some examples, such as Figure 2A and Figure 2BAs shown, the shape of the orthogonal projection of the first sub-pixel 121 on the substrate 110 includes a first protrusion 1211, and the shape of the orthogonal projection of the second sub-pixel 122 on the substrate 110 includes a second protrusion 1221. The first protrusion 1211 and the second protrusion 1221 are oriented in opposite directions.
[0065] In some examples, such as Figure 2A and Figure 2B As shown, the shape of the orthographic projection of the first sub-pixel 121 on the substrate 110 also includes a first bottom edge 1212 disposed opposite to the first protrusion 1211, and the shape of the orthographic projection of the second sub-pixel 122 on the substrate 110 includes a second bottom edge 1222 disposed opposite to the second protrusion 1221. The first bottom edge 1212 and the second bottom edge 1222 are not located on the same straight line.
[0066] In some examples, such as Figure 2A and Figure 2B As shown, in the first sub-pixel row 310, adjacent first sub-pixels 121 and second sub-pixels 122 are not aligned near the edges of the same second sub-pixel row (e.g., Figure 2A The bottom edge of the middle part is not flush.
[0067] In some examples, such as Figure 2A and Figure 2B As shown, multiple first sub-pixels 121 and multiple second sub-pixels 122 in a first sub-pixel row 310 all intersect with a first virtual straight line extending along a first direction. That is, the first virtual straight line extending along the first direction passes through multiple first sub-pixels 121 and multiple second sub-pixels 122 in a first sub-pixel row 310. As a result, the multiple first sub-pixels 121 and multiple second sub-pixels 122 in a first sub-pixel row appear more like a straight line to the human eye, thereby further reducing the sense of fluctuation in the first sub-pixel row 310, and thus further reducing or even eliminating the "fluctuation" or "jaggedness" of the displayed image.
[0068] In some examples, such as Figure 2A and Figure 2B As shown, a plurality of first sub-pixels 121 and a plurality of second sub-pixels 122 are uniformly distributed in a first sub-pixel row 310 in a first direction, thereby improving the display quality of the array substrate.
[0069] In some examples, such as Figure 2A As shown, within the same pixel group row 120, the centers of all first sub-pixels 121 can be located on the same straight line; the centers of all second sub-pixels 121 can be located on the same straight line; the centers of all third sub-pixels 123 can be located on the same straight line; and the centers of all fourth sub-pixels 124 can be located on the same straight line.
[0070] In some examples, such as Figure 2A As shown, in each pixel group 120, no other sub-pixels are set between the first sub-pixel 121 and the third sub-pixel 123, and no other sub-pixels are set between the first sub-pixel 121 and the fourth sub-pixel 124; similarly, no other sub-pixels are set between the second sub-pixel 122 and the third sub-pixel 123, and no other sub-pixels are set between the second sub-pixel 122 and the fourth sub-pixel 124.
[0071] In some examples, such as Figure 2A As shown, the array substrate 100 further includes: a sub-pixel spacing 170, which is disposed between two adjacent sub-pixels. The sub-pixels can be any one of the first sub-pixel 121, the second sub-pixel 122, the third sub-pixel 123 and the fourth sub-pixel mentioned above; each pixel group 120 includes only four sub-pixels separated by the sub-pixel spacing 170.
[0072] In some examples, such as Figure 2A As shown, the array substrate 100 also includes spacers 250, which can be used during the fabrication of the array substrate to support the mask (e.g., a fine metal mask) used to form the first sub-pixel, second sub-pixel, third sub-pixel, and fourth sub-pixel described above. The spacers 250 are located between adjacent first sub-pixels 121 and second sub-pixels 122 in the first sub-pixel row 310.
[0073] In the array substrate provided in this embodiment, since the angle θ between the line CL connecting the center of adjacent first sub-pixels 121 and the center of adjacent second sub-pixels 122 in the first sub-pixel row 310 and the first direction is reduced, that is, the distance between adjacent first sub-pixels 121 and second sub-pixels 122 in the second direction is reduced, the aspect ratio of the third and fourth sub-pixels is reduced, thereby leaving a blank area between adjacent first sub-pixels 121 and second sub-pixels 122. The array substrate can utilize this blank area to set spacers, thereby avoiding the spacers from rubbing against the opening edge of the mask during the manufacturing process and generating particles, thus avoiding the particles from adversely affecting the display quality.
[0074] In some examples, such as Figure 2A As shown, the number of multiple second sub-pixel rows 320 is K. The spacer is also located between the third sub-pixel in the j-th second sub-pixel row and the fourth sub-pixel in the (j+1)-th second sub-pixel row, or the spacer is also located between the fourth sub-pixel in the j-th second sub-pixel row and the third sub-pixel in the (j+1)-th second sub-pixel row. K is a positive integer greater than or equal to 3, and j is a positive integer greater than or equal to 1 and less than or equal to K. In some examples, such as Figure 2AAs shown, the array substrate 100 includes a plurality of spacers 250, and the center lines of the plurality of spacers 250 can form a rectangular grid or a diamond grid.
[0075] In some examples, such as Figure 2A As shown, the centers of all the third sub-pixels 123 and fourth sub-pixels 124 in the second sub-pixel row 320 can be located on a virtual straight line extending along the first direction, thereby improving display symmetry.
[0076] Figure 3A This is a partial schematic diagram of an array substrate provided in an embodiment of the present disclosure; Figure 3B An array substrate provided in one embodiment of this disclosure is along Figure 3A A cross-sectional view along the AB direction.
[0077] In some examples, such as Figure 2A and Figure 3A As shown, the ratio of the size of the third sub-pixel 123 in the second direction to its size in the first direction is less than 3.5. Therefore, by reducing the aspect ratio of the third sub-pixel 123, the centers of adjacent first sub-pixels 121 and second sub-pixels 122 in the first sub-pixel row 310 can be positioned closer together; for example, the angle between the line CL connecting the centers of adjacent first sub-pixels 121 and second sub-pixels 122 and the first direction is less than 15 degrees. Furthermore, setting the ratio of the size of the third sub-pixel 123 in the second direction to its size in the first direction to less than 3.5 also helps to improve the display symmetry of the pixel group. It should be noted that the size of the third sub-pixel described above can be the size of the effective light-emitting area of the third sub-pixel.
[0078] In some examples, such as Figure 2A and Figure 3A As shown, the ratio of the size of the third sub-pixel 123 in the second direction to its size in the first direction is less than 2. Therefore, by reducing the aspect ratio of the third sub-pixel 123, the centers of adjacent first sub-pixels 121 and second sub-pixels 122 in the first sub-pixel row 310 can be positioned closer together; for example, the angle between the line CL connecting the centers of adjacent first sub-pixels 121 and second sub-pixels 122 and the first direction is less than 15 degrees. Furthermore, by setting the ratio of the size of the third sub-pixel 123 in the second direction to its size in the first direction to less than 2, the display symmetry of the pixel group can also be improved. It should be noted that the size of the third sub-pixel described above can be the size of the effective light-emitting area of the third sub-pixel.
[0079] In some examples, such as Figure 2A and Figure 3AAs shown, the ratio of the size of the third sub-pixel 123 in the second direction to the size of the third sub-pixel 123 in the first direction is less than 1.2. Therefore, this array substrate can further bring the centers of adjacent first and second sub-pixels in the first sub-pixel row closer together, and also helps to improve the display symmetry of the pixel group.
[0080] In some examples, such as Figure 2A and Figure 3A As shown, in the i-th pixel group row 210, the first sub-pixel 121 of a pixel group 120 is at least partially located between two adjacent pixel groups 120 in the (i+1)-th pixel group row 210, for example, between adjacent third sub-pixels 123 and fourth sub-pixels 124. That is, the orthographic projection of the i-th pixel group row 210 onto a reference line extending along the second direction partially overlaps with the orthographic projection of the (i+1)-th pixel group row 210 onto the reference line extending along the second direction. Therefore, the array substrate can arrange adjacent pixel group rows 210 more closely, thereby improving pixel density and aperture ratio.
[0081] For example, such as Figure 2A and Figure 3A As shown, the orthographic projection of the first sub-pixel 121 in a pixel group 120 in the i-th pixel group row 210 onto a reference line extending along the second direction at least partially overlaps with the orthographic projections of two adjacent pixel groups 120 in the (i+1)-th pixel group row 210 onto a reference line extending along the second direction; the orthographic projection of the first sub-pixel 121 in a pixel group 120 in the i-th pixel group row 210 onto a reference line extending along the second direction at least partially overlaps with the orthographic projections of two adjacent third sub-pixels 123 and fourth sub-pixels 124 in the (i+1)-th pixel group row 210 onto a reference line extending along the second direction.
[0082] In some examples, such as Figure 2A and Figure 3A As shown, the i-th pixel group row 210 and the (i+2)-th pixel group row 210 are aligned in a first direction. A first sub-pixel 121 in the i-th pixel group row 210 and a second sub-pixel 122 in the (i+2)-th pixel group row 210 form a sub-pixel pair 125. In the sub-pixel pair 125, the third line CL3 connecting the center of the first sub-pixel 121 and the center of the second sub-pixel 122 is parallel to the second direction. Therefore, the array substrate has better display quality.
[0083] In some examples, such as Figure 2A and Figure 3AAs shown, the furthest distance between the effective light-emitting area of the first sub-pixel 121 and the effective light-emitting area of the second sub-pixel 122 in the second direction is greater than the size of the third sub-pixel 123 and the size of the fourth sub-pixel 124 in the second direction.
[0084] In some examples, such as Figure 3B As shown, the array substrate 100 further includes a first color pixel electrode 141, a second color pixel electrode 142, a third color pixel electrode 143, and a fourth color pixel electrode 144 located on the substrate 110; a pixel defining layer 150 located on the side of the first color pixel electrode 141, the second color pixel electrode 142, the third color pixel electrode 143, and the fourth color pixel electrode 144 away from the substrate 110; and a first color light emitting layer 161, a second color light emitting layer 162, a third color light emitting layer 163, and a fourth color light emitting layer 164 located on the side of the pixel defining layer 150 away from the substrate 110. The pixel defining layer 150 includes a first opening 151, a second opening 152, a third opening 153, and a fourth opening 154. The first opening 151 exposes a first color pixel electrode 141, the second opening 152 exposes a second color pixel electrode 142, the third opening 153 exposes a third color pixel electrode 143, and the fourth opening 154 exposes a fourth color pixel electrode 144. The first color emitting layer 161 is in contact with the portion of the first color pixel electrode 141 exposed by the first opening 151 through the first opening 151. The second color emitting layer 162 is in contact with the portion of the second color pixel electrode 142 exposed by the second opening 152 through the second opening 152. The third color emitting layer 163 is in contact with the portion of the third color pixel electrode 143 exposed by the third opening 153 through the third opening 153. The fourth color emitting layer 164 is in contact with the portion of the fourth color pixel electrode 144 exposed by the fourth opening 154 through the fourth opening 154. At this time, the shape and size of the effective light-emitting area of the first sub-pixel 121 are defined by the first opening 151, the shape and size of the effective light-emitting area of the second sub-pixel 122 are defined by the second opening 152, the shape and size of the effective light-emitting area of the third sub-pixel 123 are defined by the third opening 153, and the shape and size of the effective light-emitting area of the fourth sub-pixel 124 are defined by the fourth opening 154.
[0085] For example, the first color pixel electrode 141 is configured to drive the first color light-emitting layer 161 to emit light of the first color; the second color pixel electrode 142 is configured to drive the second color light-emitting layer 162 to emit light of the second color; the third color pixel electrode 143 is configured to drive the third color light-emitting layer 163 to emit light of the third color; and the fourth color pixel electrode 144 is configured to drive the fourth color light-emitting layer 164 to emit light of the fourth color.
[0086] For example, the first and second colors are both green, the third color is red, and the fourth color is blue. Of course, embodiments disclosed herein include, but are not limited to, these.
[0087] In some examples, such as Figure 3A As shown, the first color emitting layer 161 of the first sub-pixel 121 and the second color emitting layer 162 of the second sub-pixel 122 in the sub-pixel pair 125 are integrated into the same emitting layer. That is, the first color emitting layer 161 of the first sub-pixel 121 and the second color emitting layer 162 of the second sub-pixel 122 in the sub-pixel pair 125 can be formed through the same opening of the same fine mask (FMM).
[0088] For example, such as Figure 3A As shown, the first sub-pixel 121 and the second sub-pixel 122 can be configured to emit light of the same color. However, since the third sub-pixel 123 and the fourth sub-pixel 124 in the same pixel group 120 are close together, the first color emitting layer 161 of the first sub-pixel 121 and the second color emitting layer 162 of the second sub-pixel 122 in the same pixel group 120 may not be integrated together. Instead, the first color emitting layer 161 of the first sub-pixel 121 and the second color emitting layer 162 of the second sub-pixel 122 in 125 may be integrated into the same emitting layer.
[0089] In some examples, such as Figure 3A and Figure 3B As shown, the first sub-pixel 121 may include the aforementioned first color pixel electrode 141 and a first color emissive layer 161 disposed on the first color pixel electrode 141; the second sub-pixel 122 includes a second color pixel electrode 142 and a second color emissive layer 162 disposed on the second color pixel electrode 142; the third sub-pixel 123 includes a third color pixel electrode 143 and a third color emissive layer 163 disposed on the third color pixel electrode 143; and the fourth sub-pixel 124 includes a fourth color pixel electrode 144 and a fourth color emissive layer 164 disposed on the fourth color pixel electrode 144. It should be noted that each of the aforementioned emissive layers may include only a directly emitting emissive layer, or it may include auxiliary functional layers such as an electron transport layer, an electron injection layer, a hole transport layer, and a hole injection layer.
[0090] It should be noted that the shapes and sizes of the first, second, third, and fourth sub-pixels mentioned above can be the shapes and sizes of the effective light-emitting areas of the first, second, third, and fourth sub-pixels, which can be defined by the first, second, third, and fourth vias mentioned above. Therefore, the shapes of the first, second, third, and fourth color pixel electrodes can be different from the shapes of the first, second, third, and fourth sub-pixels mentioned above. Of course, the embodiments of this disclosure include, but are not limited to, the shapes of the first, second, third, and fourth color pixel electrodes can also be the same as the shapes of the first, second, third, and fourth sub-pixels mentioned above.
[0091] On the other hand, the specific shapes of the first color emitting layer, the second color emitting layer, the third color emitting layer, and the fourth color emitting layer can be set according to the manufacturing process, and the embodiments disclosed herein are not limited thereto. For example, the shape of the first color emitting layer can be determined by the shape of the opening in the mask in the manufacturing process.
[0092] In some examples, such as Figure 3B As shown, the size of the first color pixel electrode 141 is larger than the size of the first opening 151, the size of the second color pixel electrode 142 is larger than the size of the second opening 152, the size of the third color pixel electrode 143 is larger than the size of the third opening 153, and the size of the fourth color pixel electrode 144 is larger than the size of the fourth opening 154. Furthermore, the distances of the first color pixel electrode 141, the second color pixel electrode 142, the third color pixel electrode 143, and the fourth color pixel electrode 144 extending beyond the first opening 151 are approximately equal, as are the distances of the second color pixel electrode 142, the third color pixel electrode 143, and the fourth color pixel electrode 144. In other words, the shortest distances between the edge of the first color pixel electrode 141 and the edge of the first opening 151, the edge of the second color pixel electrode 142 and the edge of the second opening 152, the edge of the third color pixel electrode 143 and the edge of the third opening 153, and the edge of the fourth color pixel electrode 144 and the edge of the fourth opening 154 are approximately equal.
[0093] Figure 4 This is a schematic diagram of another array substrate provided in an embodiment of the present disclosure; Figure 5 This is a schematic diagram of another array substrate provided in an embodiment of the present disclosure.
[0094] In some examples, such as Figure 4 and Figure 5As shown, the shape of the effective light-emitting area of the first sub-pixel 121 and the shape of the effective light-emitting area of the second sub-pixel 122 can both be symmetrical polygons. Of course, the embodiments disclosed herein include, but are not limited to, these.
[0095] In some instances, such as Figure 4 and Figure 5 As shown, the effective light-emitting area shape of the third sub-pixel 123 and the effective light-emitting area shape of the fourth sub-pixel 124 can be non-centrally symmetrical polygons, thereby making full use of the area of the array substrate and thus improving the aperture ratio.
[0096] For example, the number of sides of each of the shapes of the effective light-emitting areas of the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 is greater than 5.
[0097] In some examples, such as Figure 4 As shown, the shape of the effective light-emitting area of the third sub-pixel 123 includes a first parallel side group 410, which includes a first parallel side 411 and a second parallel side 412 extending along a second direction. In a pixel group 120, the first parallel side 411 is located on the side of the second parallel side 412 away from the fourth sub-pixel 124, and the length of the first parallel side 411 is greater than the length of the second parallel side 412. In a pixel group 120, the center line CL1 connecting the first sub-pixel 121 and the second sub-pixel 122 is located between the center of the third sub-pixel 123 and the center of the fourth sub-pixel 124. Therefore, the effective light-emitting areas of the third sub-pixel 123 and the fourth sub-pixel 124 have a larger space on the side away from the center line CL1. Therefore, by setting the length of the first parallel side to be greater than the length of the second parallel side, the area of the effective light-emitting area of the third sub-pixel can be increased, and the space utilization and aperture ratio can be improved. It should be noted that the aperture ratio mentioned above can be the ratio of the sum of the areas of the effective light-emitting areas of each sub-pixel in the array substrate to the area of the array substrate.
[0098] In some examples, such as Figure 4 and Figure 5As shown, the shape of the effective light-emitting area of the fourth sub-pixel 124 includes a second parallel side group 420, which includes a third parallel side 421 and a fourth parallel side 422 extending along a second direction. In a pixel group 120, the third parallel side 421 is located on the side of the fourth parallel side 422 away from the third sub-pixel 123, and the length of the third parallel side 421 is greater than the length of the fourth parallel side 422. In a pixel group 120, the center line CL1 connecting the first sub-pixel 121 and the second sub-pixel 122 is located between the center of the third sub-pixel 123 and the center of the fourth sub-pixel 124. Therefore, the effective light-emitting areas of the third sub-pixel 123 and the fourth sub-pixel 124 have a larger space on the side away from the center line CL1. Therefore, by making the length of the third parallel side greater than the length of the fourth parallel side, the area of the effective light-emitting area of the fourth sub-pixel can be increased on the one hand, and the space utilization and aperture ratio can be improved on the other hand.
[0099] It is worth noting that when the array substrate described above is fabricated using a fine metal mask (FMM), the first parallel edge, the second parallel edge, the third parallel edge, and the fourth parallel edge have the same extension direction, and this extension direction can be the stretching direction of the fine metal mask (FMM), which can facilitate the transmission of the tension force of the fine metal mask (FMM) and thus improve the product yield.
[0100] In some examples, such as Figure 4 As shown, the shape of the effective light-emitting area of the third sub-pixel 123 includes the first vertex P1 and the second vertex P2, which are the furthest apart in the second direction. The shape of the effective light-emitting area of the third sub-pixel 123 is divided into a first part 1231 and a second part 1232 by the line connecting the first vertex P1 and the second vertex P2. In a pixel group 120, the first part 1231 is located on the side of the second part 1232 away from the fourth sub-pixel 124, and the average size of the first part 1231 in the second direction is larger than the average size of the second part 1232 in the second direction. In a pixel group 120, the center line CL1 connecting the first sub-pixel 121 and the second sub-pixel 122 is located between the center of the third sub-pixel 123 and the center of the fourth sub-pixel 124. Therefore, the effective light-emitting areas of the third sub-pixel 123 and the fourth sub-pixel 124 have a larger space on the side away from the center line CL1. Therefore, by setting the size of the first part in the second direction to be larger than the size of the second part in the second direction, the area of the effective light-emitting area of the third sub-pixel can be increased on the one hand, and the space utilization and aperture ratio can be improved on the other hand. It should be noted that the "average size" mentioned above can be the weighted average size of the first part or the second part in the second direction.
[0101] In some examples, such as Figure 4 and Figure 5 As shown, the shape of the effective light-emitting area of the fourth sub-pixel 124 includes the third vertex P3 and the fourth vertex P4, which are the furthest apart in the second direction. The shape of the effective light-emitting area of the fourth sub-pixel 124 is divided into a third part 1243 and a fourth part 1244 by the line connecting the third vertex P3 and the fourth vertex P4. In a pixel group 120, the third part 1243 is located on the side of the fourth part 1244 away from the third sub-pixel 123, and the average size of the third part 1243 in the second direction is larger than the average size of the fourth part 1244 in the second direction. In a pixel group 120, the center line CL1 connecting the first sub-pixel 121 and the second sub-pixel 122 is located between the center of the third sub-pixel 123 and the center of the fourth sub-pixel 124. Therefore, the side of the effective light-emitting area of the third sub-pixel 123 and the effective light-emitting area of the fourth sub-pixel 124 away from the center line CL1 has a larger space. Therefore, by setting the size of the third part in the second direction to be larger than the size of the fourth part in the second direction, the area of the effective light-emitting area of the fourth sub-pixel can be increased on the one hand, and the space utilization and aperture ratio can be improved on the other hand.
[0102] In some examples, such as Figure 5 As shown, since the luminous efficiency and lifetime of the fourth sub-pixel 124 are reduced, the effective luminous area of the fourth sub-pixel 124 can be extended outward to increase its area. At this time, the effective luminous area of the third sub-pixel 123 can still adopt a symmetrical shape.
[0103] In some examples, the luminous efficiency of the third sub-pixel 123 is greater than that of the fourth sub-pixel 124. In this case, the area of the effective light-emitting region of the fourth sub-pixel 124 is larger than that of the effective light-emitting region of the third sub-pixel 123. Due to differences in the structural design and material system of the light-emitting devices, the lifetimes of sub-pixels emitting different colors of light vary. Therefore, by setting the area of the effective light-emitting region of the fourth sub-pixel to be larger than that of the third sub-pixel, the aforementioned lifetime difference can be balanced, thereby improving the overall lifetime of the array substrate.
[0104] In some examples, such as Figure 4 and Figure 5As shown, the shortest distance D1 between the effective light-emitting area of the third sub-pixel 123 in the i-th pixel group row 210 and the effective light-emitting area of the fourth sub-pixel 124 in the (i+1)-th pixel group row 210 is less than twice the shortest distance between the effective light-emitting areas of the first sub-pixel 121 and the third sub-pixel 123 in the same pixel group 120. In a typical array substrate, the shortest distance between the effective light-emitting area of the third sub-pixel in the i-th pixel group row and the effective light-emitting area of the fourth sub-pixel in the (i+1)-th pixel group row is relatively large. The array substrate provided in this example increases the area of the third sub-pixel and improves the aperture ratio by setting the aforementioned shortest distance D1 to be less than twice the shortest distance between the effective light-emitting areas of the first and third sub-pixels in the same pixel group.
[0105] In some examples, such as Figure 4 and Figure 5 As shown, the shortest distance D1 between the effective light-emitting area of the third sub-pixel 123 in the i-th pixel group row 210 and the effective light-emitting area of the fourth sub-pixel 124 in the (i+1)-th pixel group row 210 is less than 1.5 times the shortest distance between the effective light-emitting areas of the first sub-pixel 121 and the third sub-pixel 123 in the same pixel group 120. Therefore, the array substrate can further increase the area of the third sub-pixel and improve the aperture ratio.
[0106] In some examples, such as Figure 5 As shown, the shortest distance D2 between the effective light-emitting area of the fourth sub-pixel 124 in the i-th pixel group row 210 and the effective light-emitting area of the third sub-pixel 123 in the (i+1)-th pixel group row 210 is less than twice the shortest distance between the effective light-emitting areas of the first sub-pixel 121 and the fourth sub-pixel 124 in the same pixel group 120. In a typical array substrate, the shortest distance between the effective light-emitting area of the fourth sub-pixel in the i-th pixel group row and the effective light-emitting area of the third sub-pixel in the (i+1)-th pixel group row is relatively large. The array substrate provided in this example increases the area of the fourth sub-pixel and improves the aperture ratio by setting the aforementioned shortest distance D2 to be less than twice the shortest distance between the effective light-emitting areas of the first sub-pixel and the fourth sub-pixel in the same pixel group.
[0107] In some examples, such as Figure 5 As shown, the shortest distance D2 between the effective light-emitting area of the fourth sub-pixel 124 in the i-th pixel group row 210 and the effective light-emitting area of the third sub-pixel 123 in the (i+1)-th pixel group row 210 is less than 1.5 times the shortest distance between the effective light-emitting areas of the first sub-pixel 121 and the fourth sub-pixel 124 in the same pixel group 120. Therefore, the array substrate can further increase the area of the third sub-pixel and improve the aperture ratio.
[0108] In some examples, such as Figure 5 As shown, the edge of the effective light-emitting area of the fourth sub-pixel 124 may include a curve.
[0109] In some examples, such as Figure 4 and Figure 5 As shown, in the i-th pixel group row 210, the first sub-pixel 121 of a pixel group 120 is at least partially located between two adjacent pixel groups 120 in the (i+1)-th pixel group row 210, for example, between adjacent third sub-pixels 123 and fourth sub-pixels 124. Therefore, the array substrate can arrange adjacent pixel group rows 210 more closely, thereby improving pixel density and aperture ratio.
[0110] Figure 6 This is a schematic diagram of another array substrate provided in an embodiment of the present disclosure; Figure 7 This is a schematic diagram of another array substrate provided in an embodiment of the present disclosure.
[0111] like Figure 6 and Figure 7 As shown, the array substrate 100 includes a substrate 110 and a plurality of pixel groups 120 located on the substrate 110; each pixel group 120 includes a first sub-pixel 121, a second sub-pixel 122, a third sub-pixel 123, and a fourth sub-pixel 124. In each pixel group 120, a first line CL1 connecting the center of the first sub-pixel 121 and the center of the second sub-pixel 122 intersects with a second line CL2 connecting the center of the third sub-pixel 123 and the center of the fourth sub-pixel 124. It should be noted that in this pixel group 120, the first sub-pixel 121 and the second sub-pixel 122 can be sub-pixels emitting the same color of light; in addition, the shapes of the first sub-pixel 121 and the second sub-pixel 122 can also be the same, the difference between the first sub-pixel 121 and the second sub-pixel 122 lies in their different positions. Furthermore, the "center" mentioned above refers to the brightness center or geometric center of the effective light-emitting area of the sub-pixel.
[0112] like Figure 6 and Figure 7 As shown, multiple pixel groups 120 are arranged along a first direction to form N pixel group rows 210; the N pixel group rows 210 are arranged in a second direction, with adjacent pixel group rows 210 staggered in the first direction. That is, the centers of the orthographic projections of pixel groups with the same ordinal number in two adjacent pixel group rows 210 on a reference line extending along the first direction do not overlap. Therefore, adjacent pixel group rows 210 can be set closer and more compactly in the second direction, thereby improving pixel density or resolution.
[0113] like Figure 6 and Figure 7As shown, multiple first sub-pixels 121 in the i-th pixel group row 210 and multiple second sub-pixels 122 in the (i+1)-th pixel group row 210 are alternately arranged in the first direction to form a first sub-pixel row 310; and in a first sub-pixel row 310, the angle θ between the line CL connecting the center of adjacent first sub-pixels 121 and the center of second sub-pixels 122 and the first direction is less than or equal to 10 degrees, N is a positive integer greater than or equal to 3, and i is a positive integer greater than or equal to 1 and less than or equal to N.
[0114] In the array substrate provided in this embodiment, the first sub-pixel 121 and the second sub-pixel 122 can be sub-pixels that emit the same color of light, and this color can be a sub-pixel that is sensitive to the human eye. Since the angle θ between the line CL connecting the center of adjacent first sub-pixels 121 and the center of adjacent second sub-pixels 122 in the first sub-pixel row 310 and the first direction is less than or equal to 10 degrees, the first sub-pixel row 310 has less fluctuation and is closer to a straight line in human vision. This can reduce or even eliminate the "fluctuation" or "jaggedness" of the displayed image, and make the lines of the displayed image more continuous and natural.
[0115] For example, in a first sub-pixel row 310, the angle θ between the line CL connecting the centers of adjacent first sub-pixels 121 and second sub-pixels 122 and the first direction is equal to 0 degrees; that is, in a first sub-pixel row 310, the centers of all first sub-pixels 121 and second sub-pixels 122 can be located on the same straight line, and this straight line is parallel to the first direction. Therefore, the array substrate can eliminate the fluctuation of the first sub-pixel row 310, thereby eliminating the "fluctuation" or "jaggedness" of the displayed image.
[0116] In some examples, such as Figure 6 and Figure 7 As shown, the first sub-pixel rows 310 can be evenly arranged in the second direction, that is, the distance between any two adjacent first sub-pixel rows 310 is equal, thereby further improving the uniformity and symmetry of the pixel arrangement of the array substrate, and thus further improving the display quality.
[0117] In some examples, such as Figure 7 As shown, since the luminous efficiency of the fourth sub-pixel 124 is reduced and its lifetime is also low, the effective luminous area of the fourth sub-pixel 124 can be extended outward to increase the area of the effective luminous area of the fourth sub-pixel.
[0118] For example, such as Figure 7As shown, the shape of the effective light-emitting area of the fourth sub-pixel 124 includes a second parallel side group 420, which includes a third parallel side 421 and a fourth parallel side 422 extending along a second direction. In a pixel group 120, the third parallel side 421 is located on the side of the fourth parallel side 422 away from the third sub-pixel 123, and the length of the third parallel side 421 is greater than the length of the fourth parallel side 422. In a pixel group 120, the center line CL1 connecting the first sub-pixel 121 and the second sub-pixel 122 is located between the center of the third sub-pixel 123 and the center of the fourth sub-pixel 124. Therefore, the effective light-emitting areas of the third sub-pixel 123 and the fourth sub-pixel 124 have a larger space on the side away from the center line CL1. Therefore, by making the length of the third parallel side greater than the length of the fourth parallel side, the area of the effective light-emitting area of the fourth sub-pixel can be increased on the one hand, and the space utilization and aperture ratio can be improved on the other hand.
[0119] In some examples, the luminous efficiency of the third sub-pixel 123 is greater than that of the fourth sub-pixel 124. In this case, the area of the effective light-emitting region of the fourth sub-pixel 124 is larger than that of the effective light-emitting region of the third sub-pixel 123. Due to differences in the structural design and material system of the light-emitting devices, the lifetimes of sub-pixels emitting different colors of light vary. Therefore, by setting the area of the effective light-emitting region of the fourth sub-pixel to be larger than that of the third sub-pixel, the aforementioned lifetime difference can be balanced, thereby improving the overall lifetime of the array substrate.
[0120] At least one embodiment of this disclosure also provides a display device. Figure 8 This is a schematic diagram of a display device provided according to an embodiment of the present disclosure. Figure 8 As shown, the display device 500 includes the array substrate 100 described above. Because the array substrate reduces the fluctuation of the first sub-pixel row by making the angle between the line connecting the centers of adjacent first and second sub-pixels in the first sub-pixel row and the first direction less than 20 degrees, making the first sub-pixel row appear more like a straight line to the human eye, it can reduce or even eliminate the "fluctuation" or "jaggedness" of the displayed image. Therefore, the display device can achieve both high resolution and high display quality.
[0121] 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.
[0122] The following points need to be explained:
[0123] (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.
[0124] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure can be combined with each other.
[0125] 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. An array substrate, comprising: Multiple first sub-pixel rows, each first sub-pixel row comprising multiple first sub-pixels and multiple second sub-pixels arranged alternately in a first direction; as well as Multiple second sub-pixel rows, each second sub-pixel row including multiple third sub-pixels and multiple fourth sub-pixels arranged alternately in the first direction; The plurality of first sub-pixel rows and the plurality of second sub-pixel rows are arranged alternately along a second direction, which intersects with the first direction. In two adjacent rows of the second sub-pixels, a first trapezoid is formed by connecting the centers of two third sub-pixels and two fourth sub-pixels surrounding a first sub-pixel or a second sub-pixel. The two third sub-pixels are located at the first set of opposite corners of the first trapezoid, and the two fourth sub-pixels are located at the second set of opposite corners of the first trapezoid. The array substrate further includes spacers, with at least one side of the first trapezoid passing through at least one of the spacers.
2. The array substrate according to claim 1, wherein, In two adjacent rows of first sub-pixels, a second trapezoid is formed by connecting the centers of two first sub-pixels and two second sub-pixels around a third sub-pixel or a fourth sub-pixel, and at least one side of the second trapezoid passes through at least one of the spacers.
3. The array substrate according to claim 2, wherein, The first trapezoid includes a first parallel side and a second parallel side, and the second trapezoid includes a third parallel side and a fourth parallel side. The extension directions of the first parallel side and the third parallel side are different. One of the first parallel side and the third parallel side extends along the first direction, and the other of the first parallel side and the third parallel side extends along the second direction.
4. The array substrate according to claim 2, wherein, At least one side of the second trapezoid passes through at least one of the spacers.
5. The array substrate according to any one of claims 1-4, wherein, The array substrate includes a plurality of spacers arranged along a first direction to form a spacer row; in the spacer row, the spacing between two adjacent spacers is the same.
6. The array substrate according to any one of claims 1-4, wherein, The spacer is located within the area enclosed by a quadrilateral formed by the center lines connecting two adjacent first sub-pixels in the first direction and two adjacent second sub-pixels in the first direction, wherein the parallelogram includes two parallel sides parallel to the second direction.
7. The array substrate according to claim 6, wherein, The quadrilateral is a parallelogram.
8. The array substrate according to any one of claims 1-4, wherein, The center lines of the plurality of spacers on the array substrate form a network, the network including at least a pair of parallel sides.
9. The array substrate according to any one of claims 1-4, wherein, The effective light-emitting area of at least one of the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel has a shape that includes a right angle or a right angle with rounded corners.
10. The array substrate according to any one of claims 1-4, wherein, The shape of the effective light-emitting area of the third sub-pixel is the same as that of the effective light-emitting area of the fourth sub-pixel, but the area of the effective light-emitting area of the third sub-pixel is different from that of the effective light-emitting area of the fourth sub-pixel.
11. The array substrate according to any one of claims 1-4, wherein, The effective light-emitting area of the first sub-pixel, the effective light-emitting area of the second sub-pixel, the effective light-emitting area of the third sub-pixel, and the effective light-emitting area of the fourth sub-pixel all include a slant side parallel to a third direction, which intersects both the first direction and the second direction.
12. The array substrate according to claim 11, wherein, The oblique side of the effective light-emitting area of the first sub-pixel or the effective light-emitting area of the second sub-pixel is opposite to and parallel to the oblique side of the effective light-emitting area of the adjacent third sub-pixel and the oblique side of the effective light-emitting area of the fourth sub-pixel.
13. The array substrate according to any one of claims 1-4, wherein, The effective light-emitting area of the first sub-pixel includes a first parallel side group, comprising two parallel sides; the effective light-emitting area of the second sub-pixel includes a second parallel side group, comprising two parallel sides; the effective light-emitting area of the third sub-pixel includes a third parallel side group, comprising two parallel sides; and the effective light-emitting area of the fourth sub-pixel includes a fourth parallel side group, comprising two parallel sides.
14. The array substrate according to any one of claims 1-4, wherein, The first sub-pixel is configured to emit light of a first color, and the second sub-pixel is configured to emit light of a second color, wherein the first color and the second color are the same.
15. The array substrate according to claim 14, wherein, The third sub-pixel is configured to emit light of a third color, and the fourth sub-pixel is configured to emit light of a fourth color. The third color, the fourth color, and the first color are all different from each other, and the luminous efficiency of the third sub-pixel is greater than that of the fourth sub-pixel.
16. The array substrate according to any one of claims 1-4, further comprising: Multiple pixel groups, each pixel group including a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. In each of the pixel groups, the first line connecting the center of the first sub-pixel and the center of the second sub-pixel intersects the second line connecting the center of the third sub-pixel and the center of the fourth sub-pixel. The plurality of pixel groups are arranged along the first direction to form N pixel group rows, the N pixel group rows are arranged in the second direction, and two adjacent pixel group rows are staggered in the first direction.
17. The array substrate according to any one of claims 1-4, wherein, In a first sub-pixel row, the angle between the line connecting the center of an adjacent first sub-pixel and the center of a second sub-pixel and the first direction is less than or equal to 20 degrees.
18. The array substrate according to any one of claims 1-4, wherein, The shortest distance between the first sub-pixel and the second sub-pixel is less than the maximum size of the fourth sub-pixel in the second direction, and the maximum distance between the first sub-pixel and the second sub-pixel is greater than the maximum size of the fourth sub-pixel in the second direction.
19. The array substrate according to any one of claims 1-4, further comprising: Substrate; First color pixel electrode, second color pixel electrode, third color pixel electrode and fourth color pixel electrode; as well as A pixel defining layer is located on the side of the first color pixel electrode, the second color pixel electrode, the third color pixel electrode, and the fourth color pixel electrode away from the substrate. The pixel definition layer includes a first opening, a second opening, a third opening, and a fourth opening. The first opening exposes the first color pixel electrode, the second opening exposes the second color pixel electrode, the third opening exposes the third color pixel electrode, and the fourth opening exposes the fourth color pixel electrode. The first sub-pixel includes a first color pixel electrode and a first opening; the second sub-pixel includes a second color pixel electrode and a second opening; the third sub-pixel includes a third color pixel electrode and the third opening; and the fourth sub-pixel includes a fourth color pixel electrode and the fourth opening.
20. A display device comprising an array substrate according to any one of claims 1-19.