CN116963548A - Pixel arrangement structure, display panel, display device and mask assembly - Google Patents

Abstract

The application provides a pixel arrangement structure, a display panel, a display device and a mask assembly, wherein the centers of first pixels and the midpoints of connecting lines between a third side and a fourth side are overlapped, so that the distance between adjacent first pixels can be increased, the center distance between different first pixels in two adjacent virtual quadrilaterals can be increased on the premise of not changing the pixel size, and the situation that the preparation difficulty of the pixels is overlarge due to the fact that the distance between the first pixels is too close is reduced. Meanwhile, the first pixels are arranged to be of parallelogram structures with different side lengths, so that the size relation among different pixels can be adjusted more flexibly, the probability of observing display color cast by human eyes is reduced through adjusting the size relation among the pixels, and the display effect of the display panel is improved.

Description

Pixel arrangement structure, display panel, display device and mask assembly

Technical Field

The present application relates to the field of display devices, and in particular, to a pixel arrangement structure, a display panel, a display device, and a mask assembly.

Background

An Organic Light-Emitting Diode (OLED) is an active Light-Emitting device. Compared with the traditional liquid crystal display (Liquid Crystal Display; LCD) display mode, the OLED display technology does not need a backlight lamp and has the self-luminous characteristic. The OLED adopts a thinner organic material film layer and a glass substrate, and when current passes through the OLED, the organic material emits light. Therefore, the OLED display panel can save electric energy remarkably, can be made lighter and thinner, can withstand a wider range of temperature changes than an LCD display panel, and has a larger viewing angle. The OLED display panel is expected to be the next generation flat panel display technology following the LCD, which is one of the most interesting technologies in the current flat panel display technology, but in the existing display panel, the display performance thereof is still to be improved.

Disclosure of Invention

The embodiment of the application provides a pixel arrangement structure, a display panel, a display device and a mask assembly, which can improve display performance.

In a first aspect, an embodiment of the present application provides a pixel arrangement structure, including a plurality of repeating units, where the repeating units include a first pixel group and a second pixel group that are disposed adjacently, each of the two pixel groups includes two first pixels, one second pixel, and one third pixel, the second pixels and the third pixels are arranged along a first direction in the same pixel group, the second pixels in the first pixel group and the third pixels in the second pixel group are arranged along a second direction in the repeating units, the plurality of repeating units are arranged along the first direction and the second direction in an array, and the first direction intersects the second direction;

in the same repeating unit, four first pixels are positioned in the four adjacent phase virtual quadrilaterals, and the centers of two second pixels and the centers of two third pixels are respectively positioned at four vertex angles of the virtual quadrilaterals;

the first pixel and the second pixel are of parallelogram structures with different side lengths, the first pixel comprises a first side and a second side which are adjacent, the length of the first side is longer than that of the second side, and the second pixel comprises a third side and a fourth side which are adjacent;

In the two second pixels corresponding to the same virtual quadrangle, a third side of one of the two second pixels is opposite to a fourth side of the other one of the two second pixels, a center of the first pixel is positioned at a midpoint of a connecting line of the third side and the fourth side, and the second side of the first pixel is arranged towards the second pixel.

In some embodiments, the length of the third side is greater than the length of the fourth side, the second side being different from the length of the fourth side.

In some embodiments, the length ratio of the second side to the fourth side is K, K satisfies 0.5.ltoreq.K.ltoreq.1.5, and K.noteq.1.

In some embodiments, the length of the fourth side is less than the length of the second side.

In some embodiments, the third side of one of the two second pixels corresponding to the same virtual quadrilateral is parallel to the fourth side of the other.

In some embodiments, the central line of the third side and the fourth side corresponding to the same virtual quadrilateral and disposed opposite to each other is perpendicular to the third side and the fourth side.

In some embodiments, the second pixel is in a rectangular structure.

In some embodiments, the third pixels are in a parallelogram structure, the third pixels include a fifth side and a sixth side that are adjacent, in two third pixels corresponding to the same virtual quadrilateral, the fifth side of one of the third pixels is opposite to the sixth side of the other of the third pixels, and a midpoint of a connecting line between the centers of the fifth side and the sixth side is offset from the center of the first pixel.

In some embodiments, in the two third pixels corresponding to the same virtual quadrangle, a line connecting the center of the fifth side and the center of the sixth side is offset from the center of the first pixel.

In some embodiments, the third pixel is in a square structure.

In some embodiments, the different third sides located in the two second pixels are disposed perpendicular to each other in correspondence with the same virtual quadrilateral.

In some embodiments, the angle between the third side and the first direction is 45 °.

In some embodiments, the plurality of virtual quadrilaterals includes a first type of virtual quadrilaterals and a second type of virtual quadrilaterals that are sequentially and alternately distributed in the first direction;

the central line between the first pixels located within the different first type of virtual quadrangles is parallel to the first direction.

In some embodiments, a center line between first pixels located within a different second class of virtual quadrilaterals is parallel to the first direction.

In some embodiments, the center lines between the first pixels within the different first class of virtual quadrilaterals are parallel to the center lines between the first pixels within the different second class of virtual quadrilaterals.

In some embodiments, the virtual quadrilaterals are parallelogram structures of the same side length.

In some embodiments, the first direction is perpendicular to the second direction.

In some embodiments, the center positions of the two second pixels corresponding to the same virtual quadrangle are symmetrically arranged with respect to the center of the virtual quadrangle.

In some embodiments, at least one of the single second pixel and the single third pixel includes a plurality of spaced apart pixel sections.

In some embodiments, within the second pixel, the plurality of pixel sections are arranged side by side along a direction parallel to the first edge.

In a second aspect, an embodiment of the present application provides a display panel including a pixel arrangement structure in any one of the foregoing embodiments.

In a third aspect, an embodiment of the present application provides a display device including the display panel in the foregoing embodiment.

In a fourth aspect, an embodiment of the present application provides a mask assembly, configured to vapor-deposit a pixel arrangement structure in any one of the foregoing embodiments, where the mask assembly includes a first mask plate, a second mask plate, and a third mask plate, and the first mask plate includes a plurality of first openings distributed in rows and columns, where the first openings are used to form first pixels; the second mask plate comprises a plurality of second openings, and the second openings are used for forming second pixels; the third mask plate comprises a plurality of third openings, and the third openings are used for forming third pixels. In the first mask plate, the central connecting lines of two adjacent first openings in the row direction intersect with the row direction.

The embodiment of the application provides a pixel arrangement structure, a display panel, a display device and a mask assembly, wherein the center of a first pixel and the midpoint of a connecting line between a third side and a fourth side are overlapped, so that the distance between adjacent first pixels can be increased, the center distance between different first pixels in two adjacent virtual quadrilaterals can be increased on the premise of not changing the pixel size, and the situation that the preparation difficulty of the pixels is overlarge due to the fact that the distance between the first pixels is too close is reduced. Meanwhile, the first pixels are arranged to be of parallelogram structures with different side lengths, so that the size relation among different pixels can be adjusted more flexibly, the probability of observing display color cast by human eyes is reduced through adjusting the size relation among the pixels, and the display effect of the display panel is improved.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings that are needed to be used in the embodiments of the present application will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a pixel arrangement structure according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a pixel arrangement structure according to an embodiment of the present application;

FIG. 3 is a schematic diagram showing a positional relationship between a plurality of pixels and corresponding mask openings in a pixel arrangement structure according to an embodiment of the present application;

fig. 4 is a schematic diagram of an arrangement structure of pixels corresponding to a plurality of virtual quadrilaterals in yet another pixel arrangement structure according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a plurality of repeating units in a further pixel arrangement according to an embodiment of the application;

fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a first mask plate in a mask assembly according to an embodiment of the present application.

Marking:

1. a repeating unit; 2. a first pixel group; 3. a second pixel group;

10. a first pixel; 20. a second pixel; 30. a third pixel; 40. a pixel division;

50. a first mask plate; 51. a first opening;

b1, a first side; b2, a second side; b3, a third side; b4, fourth side; b5, a fifth side; b6, a sixth side;

s, a virtual quadrangle; s1, a first type of virtual quadrangle; s2, second-class virtual quadrangle

L1, a first virtual straight line; l2, a second virtual straight line;

x, a first direction; y, second direction; m, row direction; n, column direction.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the particular embodiments described herein are meant to be illustrative of the application only and not limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

With the progress of technology, demands for display devices are increasing, and resolutions of display devices are becoming higher. At present, an organic light-emitting display device is formed by evaporating an organic material onto an array substrate by means of a mask plate, thereby forming a light-emitting structure.

Under the general condition, the larger the size of the light-emitting structure is, the slower the efficiency attenuation rate is, and the longer the service life is, so that the size of the light-emitting structure can be made as large as possible during preparation, but along with the improvement of the resolution of a display device, the too large size of the light-emitting structure can cause the too close distance between adjacent light-emitting structures, thereby causing the too close distance between openings of corresponding mask plates, and the difficulty of mask plate manufacturing and light-emitting structure evaporation is increased. And the design of the light-emitting structure is reduced, so that the loss of the aperture ratio is caused, and the actual display effect is not facilitated.

In order to solve the above-mentioned problems, referring to fig. 1 and 2, in one aspect, an embodiment of the present application provides a pixel arrangement structure, which includes a plurality of repeating units 1, wherein each repeating unit 1 includes a first pixel group 2 and a second pixel group 3 that are adjacently disposed, each of the two pixel groups includes two first pixels 10, one second pixel 20 and one third pixel 30, the second pixels 20 and the third pixels 30 are arranged along a first direction X within the same pixel group, the second pixels 20 in the first pixel group 2 and the third pixels 30 in the second pixel group 3 are arranged along a second direction Y within the repeating unit 1, and the plurality of repeating units 1 are arranged along the first direction X and the second direction Y in an array, and the first direction X intersects the second direction Y. In fig. 2, the first pixel group 2 and the second pixel group 3 are schematically indicated by means of dashed lines.

In the same repeating unit 1, four first pixels 10 are located inside four virtual quadrilaterals intersecting each other, and centers of two second pixels 20 and centers of two third pixels 30 are located at four vertex angles of the virtual quadrilaterals S, respectively. In fig. 1, a virtual quadrangle S is illustrated by means of a dashed box.

Referring to fig. 3, the first pixel 10 and the second pixel 20 are in parallelogram structures with different side lengths, the first pixel 10 includes a first side B1 and a second side B2 adjacent to each other, the length of the first side B1 is greater than that of the second side B2, and the second pixel 20 includes a third side B3 and a fourth side B4 adjacent to each other.

In the two second pixels 20 corresponding to the same virtual quadrangle S, the third side B3 of one of the two second pixels is opposite to the fourth side B4 of the other of the two second pixels, the center of the first pixel 10 is located at the midpoint of the central connecting line of the third side B3 and the fourth side B4, and the second side B2 of the first pixel 10 is disposed towards the second pixel.

The pixel arrangement structure at least comprises three pixels, namely a first pixel 10, a second pixel 20 and a third pixel 30, wherein the three pixels are combined to form a repeating unit 1, and the repeating units 1 are respectively and horizontally overlapped in a first direction X and a second direction Y to form the pixel arrangement structure. The first direction X intersects the second direction Y, and the specific value of the included angle formed between the first direction X and the second direction Y is not limited in the embodiment of the present application. The first direction X is perpendicular to the second direction Y, and the first direction X and the second direction Y are a row direction and a column direction of the pixel arrangement structure, respectively.

The first pixel 10, the second pixel 20 and the third pixel 30 are sub-pixels with three different colors, and the embodiment of the application is not limited to the light emitting colors corresponding to the first pixel 10, the second pixel 20 and the third pixel 30. Illustratively, the first pixel 10 is a green sub-pixel, the second pixel 20 is a red sub-pixel, and the third pixel 30 is a blue sub-pixel.

The first pixel group 2 and the second pixel group 3 each include two first pixels 10, one second pixel 20 and one third pixel 30, and the first pixel group 2 and the second pixel group 3 together form the repeating unit 1. Referring to fig. 2 of the drawings, the first pixel group 2 and the second pixel group 3 are arranged side by side in the second direction Y, and in the first pixel group 2, the second pixels 20 and the third pixels 30 are arranged along the first direction X, that is, the central connecting line of the second pixels 20 and the third pixels 30 is parallel to the first direction X, and the third pixels 30 are located at the left side of the second pixels 20. In the second pixel group 3, the second pixel 20 and the third pixel 30 are arranged along the first direction X, that is, the central line of the second pixel 20 and the third pixel 30 is parallel to the first direction X, and the third pixel 30 is located on the right side of the second pixel 20.

Further, in the single repeating unit 1, the second pixels 20 in the first pixel group 2 and the third pixels 30 in the second pixel group 3 are arranged along the second direction Y, that is, the center line connecting the second pixels 20 in the first pixel group 2 and the third pixels 30 in the second pixel group 3 is parallel to the second direction Y. Similarly, in the single repeating unit 1, the third pixels 30 in the first pixel group 2 and the second pixels 20 in the second pixel group 3 are arranged along the second direction Y, that is, the central line connecting the third pixels 30 in the first pixel group 2 and the second pixels 20 in the second pixel group 3 is parallel to the second direction Y.

On this basis, in the same repeating unit 1, four first pixels 10 are located inside four adjacent virtual quadrilaterals, and the centers of two second pixels 20 and the centers of two third pixels 30 are located at four vertex angles of the virtual quadrilaterals, respectively.

In the drawing, the centers of the two second pixels 20 and the center lines of the two third pixels 30 form a virtual quadrangle S, wherein a part of structures in the two second pixels 20 and the two third pixels 30 corresponding to the virtual quadrangle S are located in the virtual quadrangle S, and the other part of structures are located in the other virtual quadrangle S.

The two second pixels 20 corresponding to the virtual quadrangle S may be two second pixels 20 located in the same repeating unit 1, or may be two second pixels 20 located in adjacent repeating units 1. Similarly, the two third pixels 30 corresponding to the virtual quadrangle S may be the two third pixels 30 located in the same repeating unit 1, or may be the two third pixels 30 located in adjacent repeating units 1.

The virtual quadrangle S has four vertexes, wherein two opposite vertexes are centers of the two second pixels 20, and the other two opposite vertexes are centers of the two third pixels 30. The virtual quadrilateral S has four sides, two of which are parallel to the first direction X and two other are parallel to the second direction Y. The lengths of the adjacent two sides in the virtual quadrangle S may be the same or different, which is not limited in the embodiment of the present application.

The first pixels 10 are located in the virtual quadrangle S, that is, two second pixels 20 and two third pixels 30 are disposed around each first pixel 10. Wherein the number of second pixels 20 is the same as the number of third pixels 30 and the number of first pixels 10 is twice the number of second pixels 20.

The first pixel 10 and the second pixel 20 are both in parallelogram structures with different side lengths, the first pixel 10 includes a first side B1 and a second side B2 which are adjacent and have different lengths, the second pixel 20 includes a third side B3 and a fourth side B4 which are adjacent and have different lengths, and the first pixel 10 may be in a rectangular structure, that is, the first side B1 and the second side B2 are vertically disposed. Similarly, the second pixel 20 may have a rectangular structure, i.e. the third side B3 is disposed perpendicular to the fourth side B4. While the embodiment of the present application is not limited with respect to the shape and size of the third pixel 30. Illustratively, the third pixel 30 may be circular, square, or other regular or irregular shaped structures.

It should be noted that the structure of the first pixel 10 may be other than a conventional parallelogram, and the first pixel 10 may be configured as a parallelogram structure with a chamfer according to actual manufacturing requirements, which is not limited in the embodiment of the present application, and the second pixel 20 is similar thereto.

In addition, the first, second and third pixels 10, 20 and 30 may include only one complete light emitting structure. Alternatively, a plurality of light emitting structures may be included at intervals. Referring to fig. 5, taking an example that the second pixel 20 includes a plurality of light emitting structures arranged at intervals, the parallelogram structure corresponding to the second pixel 20 is an external quadrilateral including all the light emitting structures, and the external contour of the external quadrilateral is determined by the shape and size of each light emitting structure and the relative positional relationship among different light emitting structures.

In the two second pixels 20 corresponding to the same virtual quadrangle S, one of the third sides B3 is disposed opposite to the fourth side B4 of the other. The reference herein to "two second pixels 20 corresponding to the same virtual quadrangle S" means: the centers of the two second pixels 20 can be regarded as two opposite vertices of the same virtual quadrilateral S.

And reference herein to "wherein the third side B3 of one is disposed opposite the fourth side B4 of the other" means that: in the two second pixels 20, two sides closest to each other are a third side B3 of one of the two sides and a fourth side B4 of the other of the two sides, as can be seen in fig. 1 and 2, a central line between the third side B3 and the fourth side B4 is a first virtual straight line L1. The number of the first virtual straight lines L1 is plural and is divided into the inside of each virtual quadrangle S, wherein the extending directions of the first virtual straight lines L1 in the adjacent virtual quadrangles S are different.

Note that, in the two second pixels 20 corresponding to the same virtual quadrangle S, the third side B3 of one of the two second pixels may be disposed in parallel with the fourth side B4 of the other of the two second pixels, or may not be disposed in parallel. And the first virtual line L1 may be disposed perpendicular to the third side B3 and/or the fourth side B4, or may intersect and not be perpendicular to the third side B3 and/or the fourth side B4, which is not limited in the embodiment of the present application.

On this basis, the embodiment of the present application overlaps the center of the first pixel 10 with the center of the first virtual straight line L1, and this design can increase the distance between adjacent first pixels 10. Specifically, as shown in fig. 1 and fig. 2, the lengths of the third side B3 and the fourth side B4 are different, which results in that the lengths of the lines of the centers of the first pixel 10 and the centers of the two second pixels 20 corresponding to the same virtual quadrangle S are different, and the centers of the two second pixels 20 respectively serve as two opposite vertices of the virtual quadrangle S, so that there is a misalignment between the centers of the first pixel 10 and the geometric center of the virtual quadrangle S.

Further, in the adjacent two virtual quadrilaterals S, the offset directions of the centers of the two first pixels 10 with respect to the centers of the virtual quadrilaterals are also different. As shown in fig. 3, the central lines of two adjacent first pixels 10 are not parallel to the first direction X or the second direction Y. In other words, within adjacent virtual quadrilaterals S in the second direction Y, there is a certain misalignment of the two first pixels 10 in the first direction X; in the two virtual quadrilaterals S adjacent to each other in the first direction X, there is a certain displacement of the two first pixels 10 in the second direction Y.

Under the design, the dislocation distance in the first direction and the dislocation distance in the second direction exist between the different first pixels 10 in any two adjacent virtual quadrilaterals S, so that the center distance between the different first pixels 10 in the two adjacent virtual quadrilaterals S is improved on the premise of not changing the pixel size, and the situation that the pixel preparation difficulty is overlarge due to too close distance between the first pixels 10 is reduced.

Further, in the related art, the first pixel and the third pixel are generally square structures, and the larger the size of the first pixel, the smaller the size of the third pixel. When one of the first pixel and the second pixel is determined, the other is also determined and cannot be adjusted. Applicants have found through experimentation that, subject to the effects of color shift in the pixel materials, pixel designs generally tend to shrink in size for the second pixel and enlarge in size for the third pixel, but such design needs have not been met in the related art, as shown in the following table:

in the table, JNCD refers to the degree of color shift that can be recognized by a person, and when the degree of color shift is greater than 1, the human eye can usually recognize a significant color shift problem, and the smaller the value of JNCD, the weaker the degree of color shift that can be perceived by the human eye.

As can be seen from comparative examples 1 to 5 in the table, in the related art, the first side B1 and the second side B2 are limited to be equal in size in the first pixel, and even if the sizes of the first pixel and the third pixel are adjusted and changed in various cases, the degree of color shift corresponding to the display panel is still greater than 1, that is, the color shift phenomenon can be observed by human eyes, which is unfavorable for the display effect of the display panel.

As can be seen from embodiments 1 to 3 in the table, in the embodiment of the present application, since the sizes of the first edge B1 and the second edge B2 in the first pixel 10 are not the same, the first pixel 10 may have more size choices, so that the size relationship among the first pixel 10, the second pixel 20 and the third pixel 30 may be adjusted more flexibly, and by adjusting the size relationship among the pixels, the color shift degree is not greater than 1, the probability of observing the color shift by the human eye is reduced, and the display effect of the display panel is improved.

In summary, in the embodiment of the present application, the center of the first pixel 10 overlaps the center of the first virtual straight line L1, so that the distance between adjacent first pixels 10 can be increased, so that the center distance between different first pixels 10 in two adjacent virtual quadrilaterals S can be increased on the premise of not changing the pixel size, and the situation that the difficulty in preparing the pixels is too high due to too close distance between the first pixels 10 is reduced. Meanwhile, in the embodiment of the application, the first pixels 10 are also arranged to be in parallelogram structures with different side lengths, so that the size relation among different pixels can be adjusted more flexibly, the probability of observing display color cast by human eyes is reduced by adjusting the size relation among the pixels, and the display effect of the display panel is improved.

In some embodiments, referring to fig. 1 to 3, the length of the third side B3 is greater than the length of the fourth side B4, and the lengths of the second side B2 and the fourth side B4 are different. In fig. 3, each pixel has a virtual box on its outer periphery, and the virtual box represents the outline of the mask opening corresponding to the pixel.

In the preparation process of the display device, a pixel structure is usually formed by utilizing a mask plate through evaporation, the mask plate is usually provided with an opening for evaporating a corresponding pixel, the size of the opening on the mask plate is usually larger than that of the corresponding pixel in consideration of preparation errors and other factors, and the distance between adjacent openings on the mask plate generally determines the preparation difficulty of the pixel and the opening ratio of the pixel. In general, the distance between adjacent openings is the smallest, and the larger the pixel aperture ratio is, the higher the difficulty in manufacturing the pixel is.

Under the current state of the art, if the size between adjacent mask openings is smaller than 15 μm, the difficulty in preparing the mask and the difficulty in evaporating pixels are easily caused. However, in the related art, the dimensions of the second side B2 and the fourth side B4 are generally set to be the same, which easily results in the dimension between the mask openings being smaller than 15 μm on the premise of a larger pixel aperture ratio, which is not beneficial to practical manufacturing requirements. Or in order to meet the distance requirement between adjacent mask openings, the size of the pixels needs to be moderately reduced, but this may also result in loss of the pixel aperture ratio, which is detrimental to the display effect of the display panel.

On the basis, the lengths of the second side B2 and the fourth side B4 are set to be different, and the relative sizes of the second side B2 and the fourth side B4 are adjusted, so that the preparation difficulty and the pixel aperture ratio are balanced and unified. Specifically, in the pixel design stage, the dimensions of the second side B2 and the fourth side B4 may be set to be the same, and if a certain margin exists between the adjacent openings in the mask corresponding to the first pixel 10, the dimension of the fourth side B4 may be increased, and then the dimensional relationship between three different pixels may be readjusted, so that the spacing between the adjacent openings in the mask corresponding to the first pixel 10 is reduced, and the aperture ratio of the pixel is increased.

On the contrary, if the interval between the adjacent openings in the mask plate corresponding to the first pixel 10 is too small to satisfy the preparation requirement of the pixel, the size of the fourth side B4 can be relatively reduced, and then the size relationship between the three different pixels can be readjusted, so as to satisfy the preparation requirement of the pixel.

In some embodiments, the ratio of the length of the second side B2 to the length of the fourth side B4 is K, K satisfies 0.5.ltoreq.K.ltoreq.1.5, and K+.noteq.1. Illustratively, K may be one of 0.5, 0.75, 0.9, 1.1, 1.25, and 1.5. The length of the second side B2 may be greater than the length of the fourth side B4 or less than the length of the fourth side B4, which is not limited in the embodiment of the present application.

In the embodiment of the application, the relative length relation between the second side B2 and the fourth side B4 can be adjusted according to a specific pixel arrangement structure, so that the pixel preparation requirement is met, and meanwhile, the larger pixel opening ratio is obtained, and the display effect is improved. Further alternatively, the length of the fourth side B4 is smaller than the length of the second side B2.

In some embodiments, the third side B3 of one of the two second pixels 20 corresponding to the same virtual quadrilateral S is parallel to the fourth side B4 of the other.

The "two second pixels 20 corresponding to the same virtual quadrangle S" mentioned in the embodiment of the present application means: the centers of the two second pixels 20 serve as the two vertices of the same virtual quadrilateral S. In the two second pixels 20, the two closest sides are respectively the third side B3 of one of the two sides, and the fourth side B4 of the other of the two sides are disposed opposite and parallel to each other. The design can form a gap space with a regular shape between the two second pixels 20, thereby being beneficial to reducing the arrangement difficulty of the first pixels 10 between the two second pixels 20 and reducing the probability of mutual interference between the first pixels 10 and the second pixels 20 in the preparation process.

In some embodiments, the central line of the third side B3 and the fourth side B4, which are disposed opposite to each other and correspond to the same virtual quadrilateral S, is perpendicular to the third and fourth sides B4. I.e. the first virtual line L1 is perpendicular to the third side B3 and the fourth side B4.

By the design, the two nearest second pixels 20 can be symmetrically arranged relative to the first virtual straight line L1 and the extension line thereof, so that the two second pixels 20 are distributed more regularly, and the probability of interference influence between the second pixels 20 in the preparation process can be reduced.

In some embodiments, as shown in fig. 1, the second pixels 20 have a rectangular structure, i.e. in a single second pixel 20, the third side B3 is perpendicular to the fourth side B4. Optionally, the angle between any one of the third side B3 and the fourth side B4 and the first direction X is 45 °.

In some embodiments, as shown in fig. 1 and 2, the third pixels 30 are in a parallelogram structure, the third pixels 30 include adjacent fifth sides B5 and sixth sides B6, in two third pixels 30 corresponding to the same virtual quadrangle S, the fifth side B5 of one of the third pixels is opposite to the sixth side B6 of the other, and the midpoint of the connection line between the centers of the fifth side B5 and the sixth side B6 is offset from the center of the first pixel 10.

The third pixel 30 has a parallelogram structure, and the length of the fifth side B5 and the length of the sixth side B6 can be the same or different; and the fifth side B5 may be disposed perpendicular to the sixth side B6, or may intersect and not be disposed perpendicular, which is not limited in this embodiment of the present application.

It should be noted that the structure of the third pixel 30 may be other than a conventional parallelogram, and the third pixel 30 may be configured as a parallelogram structure with a chamfer according to actual manufacturing requirements. In addition, the third pixel 30 may include only one complete light emitting structure, or may include a plurality of light emitting structures disposed at intervals. When the third pixel 30 includes a plurality of light emitting structures arranged at intervals, the parallelogram structure corresponding to the third pixel 30 is an external quadrilateral including all the light emitting structures.

The reference to "two third pixels 30 corresponding to the same virtual quadrangle S" for the embodiment of the present application means: the centers of the two third pixels 30 can be regarded as two opposite vertices of the same virtual quadrilateral S. Reference to "wherein the fifth side B5 of one is disposed opposite the sixth side B6 of the other" for the embodiment of the present application means that: in the two third pixels 30, two sides closest to each other are a fifth side B5 of one of the two sides and a sixth side B6 of the other of the two sides. As can be seen from the combined drawings, the central line between the fifth side B5 and the sixth side B6 is a second virtual straight line L2. The number of the second virtual straight lines L2 is plural and is separately provided inside the virtual quadrangle S, wherein the extending directions of the second virtual straight lines L2 inside the adjacent virtual quadrangle S are different.

Note that, the fifth side B5 and the sixth side B6 may be disposed in parallel or may not be disposed in parallel. The second virtual line L2 may be perpendicular to at least one of the fifth side B5 and the sixth side B6, or may intersect with both the fifth side B5 and the sixth side B6 and not be perpendicular, which is not limited in the embodiment of the present application.

In the embodiment of the present application, the center of the first pixel 10 is offset from the center of the second virtual line L2, where the center of the first pixel 10 may be located on the second virtual line L2 and offset from the center of the second virtual line L2; or the center of the first pixel 10 may not be located on the second virtual straight line L2.

In the embodiment of the application, the centers of the first pixels 10 and the centers of the second virtual lines L2 are arranged in a staggered manner, so that the central connecting line of the two nearest first pixels 10 is not parallel to the first direction X or the second direction Y, thereby increasing the distance between the two nearest first pixels 10 and being beneficial to improving the preparation yield.

In some alternative embodiments, in the two third pixels 30 corresponding to the same virtual quadrangle S, the connection line between the center of the fifth side B5 and the center of the sixth side B6 is offset from the center of the first pixel 10, that is, the center of the first pixel 10 is not located on the second virtual straight line L2, so that the distance between the two nearest first pixels 10 can be further increased.

In some alternative embodiments, the third pixels 30 have a square structure, i.e. the length of the fifth side B5 is equal to the length of the sixth side B6 within the same third pixel 30.

In some embodiments, as shown in fig. 1, in two second pixels 20 corresponding to the same virtual quadrangle S, different third sides B3 located in the two second pixels 20 are disposed perpendicular to each other.

The centers of the two nearest second pixels 20 may be regarded as two opposite vertices of the same virtual quadrangle S, on the basis of which the third sides B3 of the two second pixels 20 are arranged perpendicular to each other, which is equivalent to that one of the second pixels 20 is formed by deflecting the other second pixel 20 by 90 °.

This design makes the arrangement of the second pixels 20 more regular, enabling the plurality of second pixels 20 arranged in the first direction X to be parallel to each other, and enabling the plurality of second pixels 20 arranged in the second direction Y to be parallel to each other. Alternatively, in the two first pixels 10 corresponding to the same virtual quadrangle S, different first sides B1 located in the two first pixels 10 are disposed perpendicular to each other.

In some embodiments, the angle between the third side B3 and the first direction X is 45 °. The design can make the included angle between the third side B3 in any second pixel 20 and the first direction X be 45 degrees, so that the arrangement mode of the second pixel 20 and the arrangement mode of the repeating unit 1 are unified and regular. Alternatively, in a single second pixel 20, the fourth side B4 is perpendicular to the third side B3, i.e. the angle between the fourth side B4 in any second pixel 20 and the first direction X is also 45 °.

In some embodiments, referring to fig. 4, the plurality of virtual quadrilaterals S includes a first type of virtual quadrilaterals S1 and a second type of virtual quadrilaterals S2 that are alternately arranged in sequence in the first direction X. The central lines between the first pixels 10 located within the different first type of virtual quadrangles S1 are parallel to the first direction X.

The first type virtual quadrilaterals S1 and the second type quadrilaterals are alternately distributed in the first direction X, that is, a second type virtual quadrilaterals S2 exist between two adjacent first type virtual quadrilaterals S1 in the first direction, and similarly, a first type virtual quadrilaterals 1 exist between two adjacent second type virtual quadrilaterals S2 in the first direction. Alternatively, two second pixels 20 and two third pixels 30 corresponding to four vertices of the first type virtual quadrangle S1 are located in the same repeating unit 1, and two second pixels 20 and two third pixels 30 corresponding to four vertices of the second type virtual quadrangle S2 are respectively located in two repeating units 1 adjacent in the first direction.

As can be seen from the foregoing and fig. 4, in order to reduce the difficulty of manufacturing and improve the yield of products, the line between the center of the first pixel 10 located in the first type virtual quadrangle S1 and the first pixel 10 located in the second type virtual quadrangle S2 intersects with the first direction X and the second direction Y, so that the distance between the first pixel 10 located in the first type virtual quadrangle S1 and the first pixel 10 located in the second type virtual quadrangle S2 can be increased.

On this basis, the embodiment of the application also makes the central connecting lines among the first pixels 10 in the different first type virtual quadrilaterals S1 parallel to the first direction X, so that the arrangement mode of the first pixels 10 in the first type virtual quadrilaterals 1 can be completely consistent with the arrangement mode of the repeating units, thereby facilitating the regular arrangement of the first pixels 10. Similarly, in other embodiments, the center line between the first pixels 10 located in the different second type of virtual quadrangle S2 is also parallel to the first direction X.

In some embodiments, as shown in FIG. 4, the center lines between the first pixels 10 located within the different first type of virtual quadrangle S1 are parallel to the center lines between the first pixels 10 located within the different second type of virtual quadrangle S2.

In the embodiment of the application, the center connecting lines between the first pixels 10 in the different first-class virtual quadrilaterals S1 are not coincident with the center connecting lines between the first pixels 10 in the different second-class virtual quadrilaterals S2, so that the distance between the first pixels 10 in the first-class virtual quadrilaterals S1 and the first pixels 10 in the second-class virtual quadrilaterals S2 is increased, the preparation difficulty of mask plates and the evaporation difficulty of pixel materials corresponding to the first pixels 10 are reduced, and the yield of the display panel is improved.

In some embodiments, the virtual quadrangle S is a parallelogram structure with the same side length, i.e. the virtual quadrangle S may be a rhombus structure or the virtual quadrangle S may be a square structure.

In the embodiment of the present application, by setting the virtual quadrangle S to a parallelogram structure having the same side length, the length of the center line between the second pixel 20 and the third pixel 30 adjacent in the first direction X is made the same as the length of the center line between the second pixel 20 and the third pixel 30 adjacent in the second direction Y. Therefore, the display panel can have the same or similar pixel arrangement structure in the first direction X and the second direction Y, so that the display uniformity of the display panel in different directions is improved, and the display panel is improved.

In some alternative embodiments, the first direction X is perpendicular to the second direction Y, that is, the virtual quadrangle S has a square structure, so that the pixel arrangement rule of the display panel in the first direction X and the second direction Y can be further normalized, thereby improving the display effect.

In some embodiments, the center positions of the two second pixels 20 corresponding to the same virtual quadrangle S are symmetrically arranged with respect to the center of the virtual quadrangle S, that is, the centers of the two second pixels 20 corresponding to the same virtual quadrangle S coincide with the center line of the virtual quadrangle S. This only requires that the first pixel 10 can be located at different positions of the virtual quadrilateral S by sizing the second pixel 20. Further, the first pixel 10 is adjusted in size, so that the preparation requirement of the display panel and the pixel aperture ratio requirement are simultaneously met, and the display device has high flexibility and practicability.

Similarly, in other embodiments, the center positions of the two third pixels 30 corresponding to the same virtual quadrangle S are symmetrically arranged with respect to the center of the virtual quadrangle S, that is, the center of the two third pixels 30 corresponding to the same virtual quadrangle S coincides with the length of the central connecting line of the virtual quadrangle S. Thus only

In some embodiments, referring to fig. 5, at least one of the single second pixel 20 and the single third pixel 30 includes a plurality of spaced apart pixel sections 40. A structure in which a single second pixel 20 comprises a plurality of pixel branches 40 is illustrated in fig. 5.

The embodiment of the present application is described by taking the example that the plurality of pixel sections 40 are included in the single second pixel 20, and the embodiment of the present application is not limited to the number of pixel sections 40 in the single second pixel 20, and illustratively, two pixel sections 40 may be included in the single second pixel 20. While the shape and size of the different pixel sections 40 may be the same or different. Illustratively, the shape and size of the different pixel sections 40 are all the same.

If the second pixel 20 includes only one larger light emitting structure, the display panel is easy to generate a jaggy feel at some positions, especially at the edges, of the display panel during the light emitting process of the display panel due to the oversized size of the single light emitting structure, so as to influence the use look and feel of a user.

In view of this, in the embodiment of the present application, the second pixel 20 is split to include a plurality of pixel sections 40 arranged at intervals, and compared with the technical solution that the second pixel 20 includes only one large light emitting structure, the size of the pixel section 40 is relatively smaller, so that color cast and display jaggy feeling can be reduced during display, and the display effect can be improved.

It should be noted that, when at least one of the single second pixel 20 and the single third pixel 30 includes a plurality of pixel sections 40 disposed at intervals, the shape corresponding to the second pixel 20 or the third pixel 30 is an circumscribed polygon including all the light emitting structures, and an outer contour of the circumscribed polygon has an overlapping portion with a contour of all the pixel sections 40 in the single second pixel 20 or the single third pixel 30. As shown in fig. 5, the bold outline in fig. 5 is the outline of the circumscribing polygon corresponding to a portion of the second pixels 20. At this time, the center of the second pixel 20 is the geometric center of the circumscribing polygon.

In addition, the embodiment of the present application is not limited to the row direction of the plurality of pixel sections 40. Illustratively, within the second pixel 20, a plurality of pixel sections 40 are arranged side by side in a direction parallel to the third side B3.

In a second aspect, referring to fig. 6, an embodiment of the present application provides a display panel, including the pixel arrangement manner in any of the foregoing embodiments.

It should be noted that, the display panel provided by the embodiment of the present application has the beneficial effects of the pixel arrangement mode in any of the foregoing embodiments, and the detailed content is detailed in the foregoing description of the beneficial effects of the pixel arrangement mode, which is not repeated in the embodiment of the present application.

In a third aspect, an embodiment of the present application provides a display device including a display panel in any one of the foregoing embodiments.

In a fourth aspect, referring to fig. 7, an embodiment of the present application provides a mask assembly for evaporating a pixel arrangement structure in any of the foregoing embodiments, where the mask assembly includes a first mask 50, a second mask, and a third mask, the first mask 50 includes a plurality of first openings 51 distributed in rows and columns, and the first openings 51 are used to form first pixels; the second mask plate comprises a plurality of second openings, and the second openings are used for forming second pixels; the third mask plate comprises a plurality of third openings, and the third openings are used for forming third pixels. In the first mask 50, the central line of two first openings 51 adjacent in the row direction M intersects the row direction M. Only the structure of the first mask plate is schematically shown in fig. 7.

The first mask plate 50 is used for evaporating the first pixel, the second mask plate is used for evaporating the second pixel, and the third mask plate is used for evaporating the third pixel. As can be seen from the foregoing, the center line of the two nearest first pixels is neither parallel to the first direction X nor parallel to the second direction Y, so as to increase the distance between the nearest first pixels.

On this basis, the first openings 51 in the first mask 50 for evaporating the first pixels need to be matched with the positions of the first pixels, so that the central connecting lines of two adjacent first openings 51 in the row direction M are intersected with the row direction M, the row direction M and the column direction N mentioned herein can be correspondingly matched with the first direction and the second direction in the pixel arrangement structure respectively, and the plurality of first openings 51 are translated and repeated along the row direction M and the column direction N at the same time, so that all the first openings 51 on the first mask 50 are formed.

On the basis, because the central connecting lines of the two adjacent first openings 51 in the row direction M are intersected with the row direction M, the distance between the two adjacent first openings 51 in the row direction M can be increased, so that the preparation difficulty of the adjacent first pixels is reduced, and the product yield is improved.

In some alternative embodiments, the central line of two first openings 51 adjacent in the column direction N intersects the column direction N.

Although the embodiments of the present application are disclosed above, the embodiments are only used for the convenience of understanding the present application, and are not intended to limit the present application. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is still subject to the scope of the present disclosure as defined by the appended claims.

In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, substitution of other connection modes described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present application, and they should be included in the scope of the present application.

Claims (10)

1. A pixel arrangement structure, characterized by comprising a plurality of repeating units, wherein each repeating unit comprises a first pixel group and a second pixel group which are adjacently arranged, each pixel group comprises two first pixels, one second pixel and one third pixel, the second pixels and the third pixels are arranged along a first direction in the same pixel group, the second pixels in the first pixel group and the third pixels in the second pixel group are arranged along a second direction in the repeating units, and a plurality of repeating units are arranged along the first direction and the second direction in an array, and the first direction intersects with the second direction;

in the same repeating unit, four first pixels are positioned in four adjacent phase virtual quadrilaterals, and the centers of two second pixels and the centers of two third pixels are respectively positioned at four vertex angles of the virtual quadrilaterals;

the first pixel and the second pixel are in parallelogram structures with different side lengths, the first pixel comprises a first side and a second side which are adjacent, the length of the first side is longer than that of the second side, and the second pixel comprises a third side and a fourth side which are adjacent;

In the two second pixels corresponding to the same virtual quadrangle, the third side of one of the second pixels is opposite to the fourth side of the other one of the second pixels, the center of the first pixel is positioned at the midpoint of the connecting line of the third side and the fourth side, and the second side of the first pixel is arranged towards the second pixel.

2. The pixel arrangement according to claim 1, wherein the length of the third side is greater than the length of the fourth side, the second side being different from the length of the fourth side;

preferably, the ratio of the length of the second side to the length of the fourth side is K, K is more than or equal to 0.5 and less than or equal to 1.5, and K is not equal to 1;

preferably, the length of the fourth side is smaller than the length of the second side.

3. The pixel arrangement according to claim 1, wherein the third side of one of the two second pixels corresponding to the same virtual quadrilateral is parallel to the fourth side of the other;

preferably, a central connecting line of the third side and the fourth side, which are corresponding to the same virtual quadrilateral and are oppositely arranged, is perpendicular to the third side and the fourth side;

Preferably, the second pixel has a rectangular structure.

4. The pixel arrangement according to claim 1, wherein the third pixels are in a parallelogram structure, the third pixels include a fifth side and a sixth side which are adjacent, and in the two third pixels corresponding to the same virtual quadrangle, the fifth side of one of the third pixels is opposite to the sixth side of the other of the third pixels, and a midpoint of a connecting line between a center of the fifth side and a center of the sixth side is offset from a center of the first pixel;

preferably, in the two third pixels corresponding to the same virtual quadrangle, a line connecting the center of the fifth side and the center of the sixth side is arranged in a dislocation manner with the center of the first pixel;

preferably, the third pixel has a square structure;

preferably, in the two second pixels corresponding to the same virtual quadrangle, different third sides in the two second pixels are disposed perpendicular to each other;

preferably, the angle between the third side and the first direction is 45 °.

5. The pixel arrangement according to claim 4, wherein the plurality of virtual quadrilaterals includes a first type of virtual quadrilaterals and a second type of virtual quadrilaterals alternately arranged in sequence in the first direction;

A center line between the first pixels located within different ones of the first class of virtual quadrilaterals is parallel to the first direction;

preferably, a central line between said first pixels located within different virtual quadrilaterals of said second class is parallel to said first direction;

preferably, the central line between said first pixels located in different ones of said first class of virtual quadrilaterals is parallel to the central line between said first pixels located in different ones of said second class of virtual quadrilaterals.

6. The pixel arrangement according to claim 1, wherein the virtual quadrangle is a parallelogram structure with the same side length;

preferably, the first direction is perpendicular to the second direction;

preferably, the center positions of the two second pixels corresponding to the same virtual quadrangle are symmetrically arranged with respect to the center of the virtual quadrangle.

7. The pixel arrangement according to claim 1, wherein at least one of the individual second pixels and the individual third pixels comprises a plurality of spaced apart pixel sections;

preferably, in the second pixel, a plurality of the pixel sections are arranged side by side in a direction parallel to the first side.

8. A display panel comprising a pixel arrangement according to any one of claims 1 to 7.

9. A display device comprising the display panel according to claim 8.

10. A mask assembly for evaporating a pixel arrangement according to any one of claims 1 to 7, the mask assembly comprising:

the first mask plate comprises a plurality of first openings which are distributed in rows and columns, wherein the first openings are of parallelogram structures with different side lengths, and the first openings are used for forming the first pixels;

the second mask plate comprises a plurality of second openings, the second openings are of parallelogram structures with different side lengths, and the second openings are used for forming the second pixels;

a third mask plate including a plurality of third openings for forming the third pixels;

in the first mask plate, a central connecting line of two adjacent first openings in the row direction intersects with the row direction.