Pixel structure, display device and mask

Abstract

This disclosure provides a pixel structure, a display device, and a mask, belonging to the field of display technology. It solves the problems of low space utilization and low aperture ratio in existing pixel structures. The pixel structure of this disclosure includes: a plurality of repeating units arranged in an array; each repeating unit includes: three sub-pixels and three epitaxial structures; each sub-pixel is surrounded by an epitaxial structure; adjacent sub-pixels are separated by epitaxial structures; at least one epitaxial structure has a hexagonal edge; each pair of adjacent epitaxial structures intersects at least one edge; at least two of the three sub-pixels have different areas.

Description

Technical Field

[0001] This disclosure belongs to the field of display technology, specifically relating to a pixel structure, display device, and mask. Background Technology

[0002] Organic light-emitting diodes (OLEDs) are light-emitting devices that use organic solid-state semiconductors as light-emitting materials. Due to their advantages such as simple fabrication process, low cost, low power consumption, high brightness, and wide operating temperature range, they have broad application prospects.

[0003] OLED displays typically consist of red, green, and blue subpixels. The colors on the screen are produced by the superposition and mixing of light emitted from these three subpixels. The arrangement of these subpixels significantly impacts the display's performance. Therefore, optimizing the pixel arrangement is crucial. Summary of the Invention

[0004] This disclosure aims to at least solve one of the technical problems existing in the prior art, and provides a pixel structure, display device and mask.

[0005] In a first aspect, embodiments of this disclosure provide a pixel structure, the pixel structure comprising: a plurality of repeating units arranged in an array; each repeating unit comprising: three sub-pixels and three extensional structures; each sub-pixel being surrounded by one of the extensional structures; adjacent sub-pixels being spaced apart by the extensional structures;

[0006] At least one of the epitaxial structures has a hexagonal edge; each pair of adjacent epitaxial structures intersects at least one edge; and at least two of the three sub-pixels have different areas.

[0007] In some embodiments, the three sub-pixels in the same repeating unit are respectively a first sub-pixel, a second sub-pixel, and a third sub-pixel; the three epitaxial structures are respectively a first epitaxial structure, a second epitaxial structure, and a third epitaxial structure;

[0008] The first sub-pixel, the second sub-pixel, the third sub-pixel, the first epitaxial structure, the second epitaxial structure, and the third epitaxial structure are all at least partially distributed in the same virtual square region;

[0009] The sum of the areas of the first sub-pixel, the second sub-pixel, the third sub-pixel, the first extensional structure, the second extensional structure, and the third extensional structure is equal to the area of ​​the virtual square region.

[0010] In some embodiments, within the same repeating unit, the first sub-pixel and the second sub-pixel are located in the same row, but in a different row from the third sub-pixel.

[0011] In some embodiments, in two adjacent repeating units along the row direction, the first sub-pixel and the second sub-pixel in one repeating unit are located in the same row as the third sub-pixel in the other repeating unit.

[0012] In some embodiments, the edges of the first epitaxial structure, the second epitaxial structure, and the third epitaxial structure are all hexagonal;

[0013] At the junction of the first epitaxial structure and the second epitaxial structure, the edge length of the first epitaxial structure is greater than the edge length of the second epitaxial structure;

[0014] At the junction of the second epitaxial structure and the third epitaxial structure, the edge length of the second epitaxial structure is greater than the edge length of the third epitaxial structure;

[0015] At the junction of the third epitaxial structure and the first epitaxial structure, the edge length of the third epitaxial structure is greater than the edge length of the first epitaxial structure.

[0016] In some embodiments, only one of the first, second, and third epitaxial structures has a hexagonal edge, while the edges of the other two are polymorphs with more than 6 sides.

[0017] At the junction of the first epitaxial structure and the second epitaxial structure, the edge length of the first epitaxial structure is equal to the edge length of the second epitaxial structure;

[0018] At the junction of the second epitaxial structure and the third epitaxial structure, the edge length of the second epitaxial structure is equal to the edge length of the third epitaxial structure;

[0019] At the junction of the third epitaxial structure and the first epitaxial structure, the edge length of the third epitaxial structure is equal to the edge length of the first epitaxial structure.

[0020] In some embodiments, the maximum length of the second sub-pixel and the second extension structure along the row direction is 60%-70% of the side length of the virtual square, and the ratio of the maximum length of the second sub-pixel and the second extension structure along the row direction to the length along the column direction is 95% to 97%.

[0021] In some embodiments, the distance between the center of the third sub-pixel and the line connecting the centers of the first sub-pixel and the second sub-pixel is 1 / 2 of the side length of the virtual square.

[0022] In some embodiments, the maximum length of the first sub-pixel and the first extensional structure along the column direction is 55%-65% of the side length of the virtual square.

[0023] In some embodiments, the maximum length of the third sub-pixel and the third extensional structure along the column direction is 73%-83% of the side length of the virtual square.

[0024] In some embodiments, each interior angle of the hexagon is 120 degrees.

[0025] In some embodiments, the area of ​​the first sub-pixel is smaller than the area of ​​the second sub-pixel; the area of ​​the second sub-pixel is smaller than the area of ​​the third sub-pixel.

[0026] In some embodiments, the first sub-pixel is red, the second sub-pixel is green, and the third sub-pixel is blue.

[0027] In some embodiments, each edge of the sub-pixel is parallel to the edge of the corresponding epitaxial structure, and the distance between each edge of the sub-pixel and the edge of the corresponding epitaxial structure is equal.

[0028] In some embodiments, the edges of the sub-pixels are triangles, quadrilaterals, pentagons, or hexagons.

[0029] In some embodiments, at least one interior angle of the triangle, the quadrilateral, or the pentagon is 60 degrees.

[0030] Secondly, embodiments of this disclosure provide a display device, the device including the pixel structure as described above.

[0031] Thirdly, embodiments of this disclosure provide a mask for fabricating the pixel structure as described above. Attached Figure Description

[0032] Figure 1 This is a schematic diagram illustrating an exemplary pixel structure arrangement.

[0033] Figure 2 This is a schematic diagram of a pixel structure arrangement provided in an embodiment of the present disclosure.

[0034] Figure 3 This is a schematic diagram of another pixel structure arrangement provided in an embodiment of this disclosure.

[0035] Figure 4 This is a schematic diagram illustrating another pixel structure arrangement provided in an embodiment of the present disclosure.

[0036] Figure 5 This is a schematic diagram illustrating another pixel structure arrangement provided in an embodiment of the present disclosure. Detailed Implementation

[0037] 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 a part of the embodiments of this disclosure, and not all of them. The components of the embodiments of this disclosure described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely represents selected embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure. Without conflict, the various embodiments of this disclosure and the features in the embodiments can be combined with each other.

[0038] 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. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” or “including,” and similar terms mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0039] In this disclosure, "multiple or several" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0040] Figure 1 This is a schematic diagram illustrating an exemplary pixel structure arrangement, such as... Figure 1As shown, the pixel structure includes: multiple repeating units 10 arranged in an array (only one is shown in the figure); each repeating unit 10 includes: three sub-pixels 101 and three extensional structures 102; each sub-pixel 101 is surrounded by an extensional structure 102; each sub-pixel 101 and its corresponding extensional structure can constitute a pixel unit. Adjacent sub-pixels 101 are separated by extensional structures 102; the edges of the three sub-pixels 101 are regular hexagons, and the edges of the three extensional structures 102 are regular hexagons; each pair of extensional structures 102 has an intersecting edge. That is, the areas of the three sub-pixels 101 are the same, and the areas of the three extensional structures 102 are also the same. The centers of the three sub-pixels 101 can form a triangle; therefore, this arrangement of pixel structures is also called a triangular arrangement.

[0041] However, considering the differences in luminous efficiency and lifespan of each sub-pixel 101 in the pixel structure, the current pixel structure arrangement can no longer meet the requirements. Furthermore, the current pixel structure arrangement tends to result in a low pixel aperture ratio, which is not conducive to improving the display effect.

[0042] In order to at least solve one of the above-mentioned technical problems, the present disclosure provides a pixel structure, a display device, and a display substrate. The pixel structure, display device, and display substrate provided in the present disclosure will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0043] Firstly, embodiments of this disclosure provide a pixel structure. Figure 2 This is a schematic diagram of a pixel structure arrangement provided in an embodiment of the present disclosure, such as... Figure 2 As shown, the pixel structure includes: a plurality of repeating units 10 arranged in an array; each repeating unit 10 includes: three sub-pixels 101 and three extensional structures 102; each sub-pixel 101 is surrounded by an extensional structure 102; adjacent sub-pixels 101 are separated by extensional structures 102; at least one extensional structure 102 has a hexagonal edge; each pair of adjacent extensional structures 102 has at least one edge that intersects; at least two of the three sub-pixels 101 have different areas.

[0044] In the pixel structure provided in this embodiment, each sub-pixel 101 and its corresponding epitaxial structure can constitute a pixel unit. At least one epitaxial structure 102 has a hexagonal edge. Hexagons have a high area utilization rate, which can improve the aperture ratio of the pixel structure, thereby increasing the brightness per unit area and improving the display effect. Furthermore, at least two of the three sub-pixels 101 have different areas. The area of ​​each sub-pixel 101 can be designed according to the differences in luminous efficiency and lifespan of each sub-pixel 101 to ensure the luminous efficiency and lifespan of the pixel structure. At the same time, each pair of adjacent epitaxial structures 102 has at least one intersecting edge. This allows the pixel unit composed of sub-pixels 101 and epitaxial structures 102 to be arranged closely, reducing the gaps between adjacent pixel units, further improving the aperture ratio of the pixel structure, and thus improving the display effect.

[0045] In some embodiments, such as Figure 2 As shown, the three sub-pixels 101 in the same repeating unit 10 are the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3, respectively; the three extensional structures are the first extensional structure 1', the second extensional structure 2', and the third extensional structure 3', respectively; the first sub-pixel 1, the second sub-pixel 2, the third sub-pixel 3, the first extensional structure 1', the second extensional structure 2', and the third extensional structure 3' are all at least partially distributed in the same virtual square region; the sum of the areas of the first sub-pixel 1, the second sub-pixel 2, the third sub-pixel 3, the first extensional structure 1', the second extensional structure 2', and the third extensional structure 3' is equal to the area of ​​the virtual square region. In the same repeating unit 10, the first sub-pixel 1 and the second sub-pixel 2 are located in the same row, but the first sub-pixel 1 and the third sub-pixel 3 are located in different rows.

[0046] In the same repeating unit 10, the first sub-pixel 1 and the second sub-pixel 2 are located in the same row, but in a different row from the third sub-pixel 3. That is, the first sub-pixel 1 and the second sub-pixel 2 are located above the virtual square (two virtual squares are shown in the figure), and the third sub-pixel 3 is located below the junction of the first extensional structure 1' and the second extensional structure 2' corresponding to the first sub-pixel 1 and the second sub-pixel 2. The pixel units corresponding to the three sub-pixels 101 are all adjacent to each other and intersect. The center lines connecting the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3 can form a triangle, which can be arranged in a triangular pattern. In this way, the three can be arranged closely, reducing the gaps between adjacent pixel units, further increasing the aperture ratio of the pixel structure, and thus improving the display effect.

[0047] It should be noted that the center of each sub-pixel 101 can be, for example, the geometric center of that sub-pixel 101, the intersection of the perpendicular bisectors of its sides, or a point in that sub-pixel 101 that is approximately equidistant from each side. Of course, a certain degree of error is permissible in the center of the sub-pixel 101. For example, the center of a sub-pixel 101 can be any point within a radius of 3μm centered on its geometric center.

[0048] In some embodiments, such as Figure 2 As shown, in two adjacent repeating units 10 along the row direction, the first sub-pixel 1 and the second sub-pixel 2 in one repeating unit 10 are located in the same row as the third sub-pixel 3 in the other repeating unit 10.

[0049] In two adjacent repeating units 10, the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3 in one repeating unit 10 are arranged in an upright triangle, while the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3 in the other repeating unit 10 are arranged in an inverted triangle. In this way, the pixels in adjacent repeating units 10 can also be arranged closely, reducing the gaps between adjacent pixel units in different repeating units 10, further increasing the aperture ratio of the pixel structure, and thus improving the display effect.

[0050] In some embodiments, such as Figure 2 As shown, the edges of the first extensional structure 1', the second extensional structure 2', and the third extensional structure 3' are all hexagonal; at the junction of the first extensional structure 1' and the second extensional structure 2', the edge length of the first extensional structure 1' is greater than the edge length of the second extensional structure 2'; at the junction of the second extensional structure 2' and the third extensional structure 3', the edge length of the second extensional structure 2' is greater than the edge length of the third extensional structure 3'; at the junction of the third extensional structure 3' and the first extensional structure 1', the edge length of the third extensional structure 3' is greater than the edge length of the first extensional structure 1'.

[0051] When the edges of the first extensional structure 1', the second extensional structure 2', and the third extensional structure 3' are all hexagonal, the edge lengths at the junctions of adjacent extensional structures 102 are different. For example, at the junction of the first extensional structure 1' and the second extensional structure 2', the edge length of the first extensional structure 1' is greater than the edge length of the second extensional structure 2'; at the junction of the second extensional structure 2' and the third extensional structure 3', the edge length of the second extensional structure 2' is greater than the edge length of the third extensional structure 3'; and at the junction of the third extensional structure 3' and the first extensional structure 1', the edge length of the third extensional structure 3' is greater than the edge length of the first extensional structure 1'. This ensures that the areas of the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3 are different, allowing each pixel unit to be arranged closely, reducing the gaps between adjacent pixels, further increasing the aperture ratio of the pixel structure, and thus improving the display effect.

[0052] Figure 3 This is a schematic diagram illustrating another pixel structure arrangement provided in an embodiment of this disclosure. Figure 4 This is a schematic diagram illustrating another pixel structure arrangement provided in an embodiment of this disclosure. Figure 5 This is a schematic diagram illustrating another pixel structure arrangement provided in an embodiment of the present disclosure, as shown below. Figure 3 , Figure 4 and Figure 5 As shown, only one of the first extensional structure 1', the second extensional structure 2', and the third extensional structure 3' has a hexagonal edge, while the edges of the other two are polymorphic with more than 6 sides. At the junction of the first extensional structure 1' and the second extensional structure 2', the edge length of the first extensional structure 1' is equal to the edge length of the second extensional structure 2'. At the junction of the second extensional structure 2' and the third extensional structure 3', the edge length of the second extensional structure 2' is equal to the edge length of the third extensional structure 3'. At the junction of the third extensional structure 3' and the first extensional structure 1', the edge length of the third extensional structure 3' is equal to the edge length of the first extensional structure 1'.

[0053] Specifically, Figure 3 In the pixel structure shown, the edges of the first extensional structure 1' and the third extensional structure 3' are polygonal, for example, they can be dodecagonal, while the edges of the second extensional structure 2' are hexagonal. Figure 4 In the pixel structure shown, the edges of the second extensional structure 2' and the third extensional structure 3' are polygonal, for example, they can be dodecagonal, while the edges of the first extensional structure 1' are hexagonal. Figure 5 In the pixel structure shown, the edges of the first extension structure 1' and the second extension structure 2' are polygons, such as dodecagons, and the edges of the third extension structure 3' are hexagons.

[0054] exist Figure 3 , Figure 4 and Figure 5 In the pixel structure shown, since the edges of some of the extension structures 102 are dodecagonal, the edges of the corresponding pixel units can be made smoother. At the junction of two extension structures 102, the edge lengths of the two adjacent extension structures 102 can be equal. This can prevent the adjacent pixel units from being misaligned at the splicing point, so that each pixel unit can be arranged more closely, further reducing the gap between adjacent pixel units, further increasing the aperture ratio of the pixel structure, and thus improving the display effect.

[0055] It should be noted that, in addition to the dodecagonal shape mentioned above, the edge of the corresponding extension structure 102 can also be a polygon with more sides, or its edge can be arc-shaped, so as to make the edge smoother and allow the pixels to be arranged more closely.

[0056] In some embodiments, such as Figures 2 to 5 As shown, the maximum length of the second sub-pixel 2 and the second extension structure 2' along the row direction is 60%-70% of the side length of the virtual square, and the ratio of the maximum length of the second sub-pixel 2 and the second extension structure 2' along the row direction to their length along the column direction is 95% to 97%. The maximum length of the first sub-pixel 1 and the first extension structure 1' along the column direction is 55%-65% of the side length of the virtual square. The maximum length of the third sub-pixel 3 and the third extension structure 3' along the column direction is 73%-83% of the side length of the virtual square.

[0057] In the same repeating unit 10, the sum of the areas of the pixel unit composed of the first sub-pixel 1 and the first extensional structure 1', the pixel unit composed of the second sub-pixel 2 and the second extensional structure 2', and the pixel unit composed of the third sub-pixel 3 and the third extensional structure 3' is fixed, that is, equal to the area of ​​the virtual square. Specifically, the maximum length of the pixel unit composed of the second sub-pixel 2 and the second extensional structure 2' along the row direction is 60%-70% of the side length of the virtual square, for example, 66.7%. The ratio of the maximum length of the pixel unit composed of the second sub-pixel 2 and the second extensional structure 2' along the row direction to its length along the column direction is 95% to 97%, for example, a fixed value of 96.27%. The maximum length of the pixel unit composed of the first sub-pixel 1 and the first extensional structure 1' along the column direction is 55%-65% of the side length of the virtual square. The maximum length of the pixel unit composed of the third sub-pixel 3 and the third extensional structure 3' along the column direction is 73%-83% of the side length of the virtual square. This allows for easy adjustment of the area ratio between the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3, ensuring their luminous efficiency and lifespan. Specifically, the area ratio between the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3 can be 1:1.2-1.5:2-3.

[0058] In some embodiments, such as Figures 2 to 5 As shown, the distance between the center of the third sub-pixel 3 and the line connecting the centers of the first sub-pixel 1 and the second sub-pixel 2 is 1 / 2 of the side length of the virtual square.

[0059] The first sub-pixel 1 and the second sub-pixel 2 are located above the virtual square, and the third sub-pixel 3 is located below the intersection of the first extension structure 1' and the second extension structure 2' corresponding to the first sub-pixel 1 and the second sub-pixel 2. The pixel units corresponding to the three sub-pixels 101 are all adjacent to each other and intersect. The distance between the center of the third sub-pixel 3 and the line connecting the centers of the first sub-pixel 1 and the second sub-pixel 2 is 1 / 2 the side length of the virtual square, which can ensure the area ratio among the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3, that is, the areas of the three can be different. The lines connecting the centers of the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3 can form a triangle, which can be arranged in a triangular pattern. In this way, the three can be arranged closely, reducing the gaps between adjacent pixel units, further increasing the aperture ratio of the pixel structure, and thus improving the display effect.

[0060] In some embodiments, each interior angle of the hexagon is 120 degrees.

[0061] Each interior angle of a hexagon can be 120 degrees, which makes better use of the area, increases the aperture ratio of the pixel structure, thereby increasing the brightness per unit area and improving the display effect.

[0062] In some embodiments, the color of the first sub-pixel 1 is red, the color of the second sub-pixel 2 is green, and the color of the third sub-pixel 3 is blue. The area of ​​the first sub-pixel 1 is smaller than the area of ​​the second sub-pixel 2; the area of ​​the second sub-pixel 2 is smaller than the area of ​​the third sub-pixel 3.

[0063] The first sub-pixel 1 is red, the second sub-pixel 2 is green, and the third sub-pixel 3 is blue. Because they use different luminescent materials, their luminous efficiency and lifespan differ. The area of ​​the first sub-pixel 1 can be set to be smaller, the area of ​​the third sub-pixel 3 to be larger, and the area of ​​the second sub-pixel 2 to be between that of the first and third sub-pixels 3. This ensures the luminous efficiency and lifespan of the pixel structure. Specifically, the area ratio of the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3 can be 1:1.2-1.5:2-3.

[0064] In some embodiments, each edge of the sub-pixel 101 is parallel to the edge of the corresponding epitaxial structure 102, and the distance between each edge of the sub-pixel 101 and the edge of the corresponding epitaxial structure 102 is equal.

[0065] The edge shape of each sub-pixel 101 can be similar to or dissimilar to the shape of the corresponding extension structure 102, so as to ensure that the pixel opening in each pixel can reach the maximum area, ensure the aperture ratio of the pixel structure, thereby increasing the brightness per unit area and thus improving the display effect.

[0066] In some embodiments, the edges of sub-pixel 101 are triangles, quadrilaterals, pentagons, or hexagons. At least one interior angle of the triangle, quadrilateral, or pentagon is 60 degrees.

[0067] Generally, hexagons have high area utilization, and the edges of each sub-pixel 101 can be hexagonal. In practical applications, some adjacent edges of the hexagonal sub-pixels 101 can be extended and intersected, with the interior angle at the intersection being 60 degrees. Correspondingly, the shape reduces the number of edges, transforming from a hexagon to a pentagon, quadrilateral, or triangle. This further increases the aperture ratio of the pixel structure, thereby increasing the brightness per unit area and improving the display effect.

[0068] Secondly, embodiments of this disclosure provide a display device, which includes the pixel structure provided in any of the above embodiments. Specifically, the display device can be a laptop computer, tablet computer, smart TV, or other similar device. Other essential components of this display device are readily understood by those skilled in the art and will not be described in detail here, nor should they be construed as limiting the scope of this disclosure.

[0069] Thirdly, the present disclosure provides a mask that can be used to fabricate pixel structures as provided in any of the above embodiments. The pixel structures fabricated based on the mask are compactly arranged, have high screen utilization, high pixel aperture ratio, low power consumption, and long service life.

[0070] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0071] In the several embodiments provided in this disclosure, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the positions of the components shown are only logical functional positions, and in actual implementation, they may be arranged in other positions.

[0072] In this disclosure, the use of terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this specification. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A pixel structure, characterized in that, The pixel structure includes: a plurality of repeating units arranged in an array; each repeating unit includes: three sub-pixels and three extensional structures; each sub-pixel is surrounded by one of the extensional structures; adjacent sub-pixels are separated by the extensional structures; At least one of the epitaxial structures has a hexagonal edge; each pair of adjacent epitaxial structures intersects at least one edge; and at least two of the three sub-pixels have different areas.

2. The pixel structure according to claim 1, characterized in that, The three sub-pixels in the same repeating unit are respectively the first sub-pixel, the second sub-pixel, and the third sub-pixel; the three epitaxial structures are respectively the first epitaxial structure, the second epitaxial structure, and the third epitaxial structure. The first sub-pixel, the second sub-pixel, the third sub-pixel, the first epitaxial structure, the second epitaxial structure, and the third epitaxial structure are all at least partially distributed in the same virtual square region; The sum of the areas of the first sub-pixel, the second sub-pixel, the third sub-pixel, the first extensional structure, the second extensional structure, and the third extensional structure is equal to the area of ​​the virtual square region.

3. The pixel structure according to claim 2, characterized in that, In the same repeating unit, the first sub-pixel and the second sub-pixel are located in the same row, but in a different row from the third sub-pixel.

4. The pixel structure according to claim 2, characterized in that, In two adjacent repeating units along the row direction, the first sub-pixel and the second sub-pixel in one repeating unit are located in the same row as the third sub-pixel in the other repeating unit.

5. The pixel structure according to claim 2, characterized in that, The edges of the first epitaxial structure, the second epitaxial structure, and the third epitaxial structure are all hexagonal; At the junction of the first epitaxial structure and the second epitaxial structure, the edge length of the first epitaxial structure is greater than the edge length of the second epitaxial structure; At the junction of the second epitaxial structure and the third epitaxial structure, the edge length of the second epitaxial structure is greater than the edge length of the third epitaxial structure; At the junction of the third epitaxial structure and the first epitaxial structure, the edge length of the third epitaxial structure is greater than the edge length of the first epitaxial structure.

6. The pixel structure according to claim 2, characterized in that, Of the first, second, and third epitaxial structures, only one has a hexagonal edge, while the other two have polymorphic edges with more than 6 sides. At the junction of the first epitaxial structure and the second epitaxial structure, the edge length of the first epitaxial structure is equal to the edge length of the second epitaxial structure; At the junction of the second epitaxial structure and the third epitaxial structure, the edge length of the second epitaxial structure is equal to the edge length of the third epitaxial structure; At the junction of the third epitaxial structure and the first epitaxial structure, the edge length of the third epitaxial structure is equal to the edge length of the first epitaxial structure.

7. The pixel structure according to claim 5 or 6, characterized in that, The maximum length of the second sub-pixel and the second extension structure along the row direction is 60%-70% of the side length of the virtual square, and the ratio of the maximum length of the second sub-pixel and the second extension structure along the row direction to the length along the column direction is 95% to 97%.

8. The pixel structure according to claim 5 or 6, characterized in that, The distance between the center of the third sub-pixel and the line connecting the centers of the first and second sub-pixels is 1 / 2 of the side length of the virtual square.

9. The pixel structure according to claim 5 or 6, characterized in that, The maximum length of the first sub-pixel and the first extensional structure along the column direction is 55%-65% of the side length of the virtual square.

10. The pixel structure according to claim 5 or 6, characterized in that, The maximum length of the third sub-pixel and the third extensional structure along the column direction is 73%-83% of the side length of the virtual square.

11. The pixel structure according to claim 5 or 6, characterized in that, Each interior angle of the hexagon is 120 degrees.

12. The pixel structure according to claim 5 or 6, characterized in that, The area of ​​the first sub-pixel is smaller than the area of ​​the second sub-pixel; the area of ​​the second sub-pixel is smaller than the area of ​​the third sub-pixel.

13. The pixel structure according to claim 5 or 6, characterized in that, The first sub-pixel is red, the second sub-pixel is green, and the third sub-pixel is blue.

14. The pixel structure according to claim 1, characterized in that, Each edge of the sub-pixel is parallel to the edge of the corresponding epitaxial structure, and the distance between each edge of the sub-pixel and the edge of the corresponding epitaxial structure is equal.

15. The pixel structure according to claim 14, characterized in that, The edges of the sub-pixels are triangles, quadrilaterals, pentagons, or hexagons.

16. The pixel structure according to claim 15, characterized in that, At least one interior angle of the triangle, the quadrilateral, and the pentagon is 60 degrees.

17. A display device, characterized in that, The device includes a plurality of pixel structures as described in any one of claims 1 to 16.

18. A photomask, characterized in that, The mask is used to fabricate the pixel structure as described in any one of claims 1 to 16.

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