CN112436029B - Pixel arrangement structure, display panel and display device - Google Patents

Abstract

The invention relates to a pixel arrangement structure, in a first pixel unit, taking the respective centers of a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel as vertexes to form a common-side triangle with non-overlapping areas; and the center of the first sub-pixel and the center of the second sub-pixel are taken as the vertex of the common side triangle; the second sub-pixel has a second long axis and a second short axis, and a center line of the second sub-pixel along the long axis direction does not pass through the center of the third sub-pixel and/or the fourth sub-pixel in the first pixel unit. According to the pixel arrangement structure, when the sub-pixels are staggered and arranged under the limiting conditions, the sub-pixels emitting the same color light are prevented from being independently arranged in a line, and the color edge problem of the display edge is improved. A display panel and a display device are also provided.

Description

Pixel arrangement structure, display panel and display device

Technical Field

The invention relates to the technical field of display, in particular to a pixel arrangement structure, a display panel and a display device.

Background

With the continuous development of display technology, people have higher and higher requirements on the resolution of display panels. Due to the advantages of high display quality and the like, the application range of the high-resolution display panel is wider and wider. In general, the resolution of the display device can be improved by reducing the size of the sub-pixels and reducing the pitch between the sub-pixels. However, the reduction in the size of the sub-pixels and the pitch between the sub-pixels is also more and more demanding on the precision of the manufacturing process, which may result in an increase in the difficulty of the manufacturing process and the manufacturing cost of the display device.

The sub-Pixel Rendering (SPR) technology can change the mode of simply defining a Pixel by using the difference of human eyes to the resolution of sub-pixels with different colors, and realize the same Pixel resolution Rendering capability by sharing sub-pixels with insensitive colors at certain positions among different pixels and using relatively fewer sub-pixels, thereby reducing the difficulty of the manufacturing process and the manufacturing cost.

Disclosure of Invention

Accordingly, there is a need for a pixel arrangement structure, a display panel and a display device, which can achieve high resolution and effectively improve the color fringing phenomenon.

According to an aspect of the present application, there is provided a pixel arrangement structure including a first pixel unit;

the first pixel unit comprises a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel;

forming a common-side triangle with non-overlapping areas by taking the centers of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel as vertexes in the first pixel unit; and the center of the first sub-pixel and the center of the second sub-pixel are taken as the vertex of the common side triangle;

the second sub-pixel has a second long axis and a second short axis, and a center line of the second sub-pixel along the long axis direction does not pass through centers of the third sub-pixel and/or the fourth sub-pixel in the first pixel unit.

In the pixel arrangement structure, the sub-pixels are staggered under the limiting conditions, so that the sub-pixels emitting the same color light are prevented from being singly arranged in a line, and the color edge problem of the display edge is improved.

In an embodiment, a projection of one of vertices at two ends of the common edge triangle on the vertex-opposite side is located on the vertex-opposite side and is not coincident with the center of the third sub-pixel or the center of the fourth sub-pixel.

In one embodiment, the projection of the vertex on the opposite side of the vertex on the common side of the common-side triangle is entirely within the distance of the intersection point of the two sub-pixel outlines corresponding to the opposite side and the opposite side of the vertex.

In one embodiment, the projection of the vertex on the opposite side of the vertex of the common-side triangle is close to or located on the center point of the opposite side.

In one embodiment, in the first pixel unit, an extension line of a side of the second sub-pixel along a long axis direction thereof or a tangent line of the side does not intersect with the third sub-pixel and/or the fourth sub-pixel as a whole.

In an embodiment, the projection of the sub-pixel corresponding to the vertex on the common side of the common-side triangle on the opposite side of the vertex is entirely located within the distance of the intersection point of the two sub-pixel outlines corresponding to the opposite side and the opposite side of the vertex.

In one embodiment, the third sub-pixel and the fourth sub-pixel are both green light emitting sub-pixels; the first sub-pixel is a blue light-emitting sub-pixel, and the second sub-pixel is a red light-emitting sub-pixel.

In one embodiment, the pixel arrangement structure further includes the second pixel unit, and the first pixel unit and the second pixel unit are arranged at intervals;

and the structure of each sub-pixel of the second pixel unit is the same as that of each sub-pixel of the first pixel unit.

In an embodiment, after being rotated by a predetermined angle, each sub-pixel structure of the second pixel unit forms mirror symmetry with each sub-pixel structure in the first pixel unit;

the predetermined angle is greater than 0 ° and less than 360 °.

In one embodiment, the predetermined angle is 90 °.

In an embodiment, the center of the third sub-pixel or the center of the fourth sub-pixel in the first pixel unit is located outside a connection line or an extension line of the centers of the second sub-pixel in the first pixel unit and the second sub-pixel in the second pixel unit adjacent to the second sub-pixel.

In one embodiment, each sub-pixel is a regular pattern or an irregular pattern having a major axis and a minor axis;

the first sub-pixel has a first major axis and a first minor axis; the third sub-pixel has a third major axis and a third minor axis; the fourth sub-pixel has a fourth major axis and a fourth minor axis.

In an embodiment, the shape of the sub-pixel is selected from one of an ellipse, a circle, a sector, a dumbbell, a pear, a quadrangle, a polygon, a rectangle-like, a rounded rectangle, a star, and a heart.

In one embodiment, within the first pixel unit, the second long axis, the third long axis and the fourth long axis are parallel to each other.

In one embodiment, the ratio of the first major axis to the first minor axis is between 1.5 and 1; the ratio of the second long axis to the second short axis is between 5 and 1; the ratio of the third long axis to the third short axis is between 5 and 1; the ratio of the fourth long axis to the fourth short axis is between 5 and 1.

In an embodiment, two triangles of the triangle with common sides are acute triangles, and the distances from the center of the third sub-pixel and the center of the fourth sub-pixel to the center of the second sub-pixel are different.

In an embodiment, a distance ratio between the center of the third sub-pixel and the center of the fourth sub-pixel to the center of the second sub-pixel is (3-2): (2-1).

In one embodiment, the first direction and the second direction are perpendicular, and the first direction forms an angle of 45 degrees with the row direction;

the long axis direction of the sub-pixels of the first pixel unit is parallel to the first direction.

In an embodiment, the first pixel unit further includes a light-transmitting reserved area disposed outside the second sub-pixel.

In an embodiment, the area of the light-transmitting reserved area is larger than the minimum light-emitting area of the sub-pixels in the first pixel unit.

In one embodiment, the size of the light-transmitting reserved area in the first direction is in a range of 10 μm to 90 μm, and the size of the light-transmitting reserved area in the second direction is in a range of 20 μm to 90 μm.

In an embodiment, in the row direction, a connection line of the centers of the first sub-pixels in each row is a straight line; the connecting line of the centers of the second sub-pixels in each row is a straight line; and the central connecting line of the third sub-pixel or the fourth sub-pixel in each row is a non-straight line or an approximate straight line.

In one embodiment, the red subpixels are not centered on a straight line in the first and second directions.

In one embodiment, the centers of the green sub-pixels are not on a straight line in the first and second directions.

In one embodiment, the centers of the blue subpixels are not on a straight line in the first and second directions.

According to another aspect of the present application, there is provided a display panel including the pixel arrangement structure according to the above embodiment.

According to still another aspect of the present application, there is provided a display device including the display panel according to the above embodiment.

Drawings

FIG. 1 is a schematic diagram of a pixel arrangement in the prior art;

FIG. 2 is a schematic structural diagram of a display panel according to an embodiment of the present application;

fig. 3 is a schematic layout diagram of a first pixel unit in an embodiment of the present application;

fig. 4 is a schematic layout diagram of a second pixel unit in an embodiment of the present application;

FIG. 5 is a schematic diagram of a pixel layout of a repeating unit according to an embodiment of the present application;

FIG. 6 is a schematic diagram of the arrangement of repeating units in another embodiment of the present application;

fig. 7 is a schematic layout diagram of a display matrix in another embodiment of the present application.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements are not intended to denote any order, quantity, or importance, but rather are used to distinguish one element from another. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As described in the background, the OLED display panel is current driven, and a pixel driving circuit is required to be connected to the OLED device to provide a driving current for the OLED device to emit light. An OLED device includes at least an anode, a cathode, and an organic light-emitting material disposed between the anode and the cathode. Taking a top-emitting OLED display panel as an example, the organic light-emitting material cannot be patterned by using a conventional etching process due to poor stability, and an evaporation process with a mask plate is used instead. The organic light emitting material is placed in a vacuum environment, and the organic material is evaporated or sublimated by heating. A mask plate is arranged between the cavity for evaporating the organic materials and the array substrate to be subjected to vapor deposition, openings corresponding to regions needing vapor deposition are formed in the mask plate, and no opening is formed in the regions not needing vapor deposition. The evaporated or sublimated organic material molecules are attached to the array substrate to be evaporated through the openings, thereby directly forming the patterned organic material layer. The Mask plate corresponding to each sub-pixel light-emitting material layer is a Fine Metal Mask plate (FMM, fine Metal Mask) which is called a Fine Mask plate for short, and is limited by the size of the openings of the Fine Mask plate, the size of the space between the openings and the difficulty of stretching, and the pixel density (PPI, pixel per inch, hereinafter referred to as pixel density) of the organic light-emitting display panel cannot be further improved due to the pixel arrangement in the prior art.

In order to solve the above problem, a Pixel Rendering technique (SPR) is used in the related art to improve the resolution of the display panel. As shown in fig. 1, the non-rendered pixel includes three sub-pixels, and the rendered pixel includes only 2 sub-pixels, so that the number of pixels can be increased by 50% without changing the sub-pixels, and the resolution is further increased. However, each pixel in the rendering pixel technology only comprises 2 sub-pixels, and in order to realize full-color display, the color which cannot be displayed by the pixel needs to be borrowed from the adjacent sub-pixels. Therefore, when the pixel arrangement structure displays, because the number of the sub-pixels of each color in the row direction and/or the column direction is different, or the projection degree of the sub-pixels at the display edge is different, the color edge appears at the picture edge, and the display quality is affected.

Meanwhile, for the display panel to have a good luminous effect, arrangement of the sub-pixels is expected to be more uniform, and the adjacent same-color sub-pixels are designed to share one mask plate opening, so that the opening area of the mask plate is increased, and alignment difficulty is reduced. However, when the display panel adopting the pixel arrangement structure displays, human eyes cannot clearly distinguish adjacent same-color sub-pixels, so that the situation of combining two sub-pixels into one visually occurs to generate granular sensation, and the display quality is influenced.

In addition, in order to enable the terminal device to realize more functions, the arrangement of the photosensitive device in the display area under the screen is also becoming more and more extensive, for example, the arrangement of the fingerprint identification device in the display area under the screen. The photosensitive device for acquiring the fingerprint image can comprise an optical sensor, the optical sensor can comprise a plurality of pixel points, and the pixel points can respectively receive optical signals reflected by different positions of an object and convert incident light into electric signals so as to generate an image of the object. Therefore, the light incoming amount and the contrast of the optical signal received by the pixel point both affect the image quality of the generated object. Therefore, certain requirements are also imposed on the light transmittance of the display panel, and the difficulty is further increased for the design of the pixel arrangement structure.

In order to solve the above problems, embodiments of the present application provide a pixel arrangement structure, a display panel and a display device, which can better improve the above problems.

Fig. 2 shows a schematic structural diagram of a display panel in an embodiment of the present application.

Referring to the drawings, a display panel 100 according to an embodiment of the present application includes a display region 10 and a non-display region 20, and the display region 10 displays an image by a plurality of sub-pixels. In particular to some embodiments, the display area 10 may be rectangular and the non-display area 20 is arranged around the display area 10, of course, the shape and arrangement of the display area 10 and the non-display area 20 include, but are not limited to, the above examples, for example, when the display panel 100 is used for a wearable device worn on a user, the display area 10 may have a circular shape like a watch; when the display substrate is used for displaying on a vehicle, the display area 10 and the non-display area 20 may take a circular shape, a polygonal shape, or other shapes, for example. The display area 10 is provided with a plurality of sub-pixels emitting light of different colors, the sub-pixels being characterized by a minimum unit for emitting light (e.g., a minimum addressable unit of the display panel 100).

Fig. 3 is a schematic layout diagram of a first pixel unit in an embodiment of the present application; fig. 4 shows a schematic layout diagram of a second pixel unit in an embodiment of the present application. FIG. 5 is a schematic diagram of a pixel arrangement of a repeating unit in an embodiment of the present application; FIG. 6 shows a schematic diagram of the arrangement of repeating units in another embodiment of the present application; fig. 7 shows a schematic layout of a display matrix in another embodiment of the present application.

The pixel arrangement structure in at least one embodiment of the present disclosure includes a first pixel unit including a first sub-pixel 12, a second sub-pixel 14, a third sub-pixel 16, and a fourth sub-pixel 18. The first sub-pixel 12, the second sub-pixel 14, the third sub-pixel 16, and the fourth sub-pixel 18 may be one of a blue light-emitting sub-pixel, a red light-emitting sub-pixel, and a green light-emitting sub-pixel, respectively. Of course, in other embodiments, the first sub-pixel 12, the second sub-pixel 14, the third sub-pixel 16, and the fourth sub-pixel 18 may also be sub-pixels emitting light of colors other than blue, red, and green, for example, the third sub-pixel or the fourth sub-pixel may be a white or yellow sub-pixel, which is not limited herein. It will be appreciated that different colours of light have different wavelength ranges, the shorter the wavelength meaning the higher the energy of the light, the more energy light will tend to cause decay of the organic light-emissive material, making it easier for sub-pixels emitting photons of high energy to decay. It is known that the blue light wavelength is shorter than the red light wavelength and the green light wavelength, so the energy of the blue light is higher, and the organic light emitting material emitting the blue light is more prone to decay, which causes the light emitted from the pixel unit to be more red, resulting in the white light color cast phenomenon. And the light emitted by each sub-pixel is repeatedly reflected and re-reflected between the anode and the cathode by a Fabry-Perot microcavity (Fabry-Perot microcavity) effect to perform amplification and constructive interference, the brightness of the light is increased, and the color shift condition is further amplified. In a preferred embodiment, as shown in fig. 3 and 4, the first sub-pixel 12 is a blue sub-pixel, the second sub-pixel 14 is a red sub-pixel, and the third sub-pixel 16 and the fourth sub-pixel 18 are green sub-pixels. The light emitting area of the blue sub-pixel is larger than the light emitting areas of the red sub-pixel and the green sub-pixel, so that poor display caused by different attenuation rates of the organic light emitting materials emitting light of different colors can be reduced to a certain extent. It should be noted that in some embodiments, the light emitting area of the green sub-pixel may be equal to the light emitting area of the red sub-pixel, but since the human eye is sensitive to green light compared to red light, in other embodiments, the light emitting area of the green sub-pixel may be smaller than the light emitting area of the red sub-pixel, and is not limited herein.

The first pixel unit has triangles with non-overlapping areas, which are formed by using the centers of the first sub-pixel 12, the second sub-pixel 14, the third sub-pixel 16 and the fourth sub-pixel 18 as vertexes, and uses the center of the first sub-pixel 12 and the center of the second sub-pixel 14 as vertexes of the triangles with the same side. Specifically, as shown in fig. 3 and 4, the first sub-pixel 12 is located on one side of a central connecting line c between the third sub-pixel 16 and the fourth sub-pixel 18, and the second sub-pixel 14 is located on the other side of the central connecting line c between the third sub-pixel 16 and the fourth sub-pixel 18. The centers of the first sub-pixel 12, the second sub-pixel 14, the third sub-pixel 16 and the fourth sub-pixel 18 are sequentially connected to form a virtual quadrangle, the midpoint connecting lines of the first sub-pixel 12, the second sub-pixel 14 and the third sub-pixel 16 form a first triangle (not shown), and the center connecting lines of the first sub-pixel 12, the second sub-pixel 14 and the fourth sub-pixel 18 form a second triangle. The first triangle and the second triangle use the center of the first sub-pixel and the center connecting line d of the second sub-pixel as a common side, namely the common side triangle, and the two triangles are not overlapped in area. In a preferred embodiment, the triangle with common sides is an acute triangle, so that the arrangement of the sub-pixels of the pixel structure is more uniform, which is beneficial to improving the display effect.

The second sub-pixel has a second long axis and a second short axis, and in the first pixel unit, the center line of the second sub-pixel along the long axis direction does not pass through the centers of the third sub-pixel and/or the fourth sub-pixel. It is understood that the major axis direction of the sub-pixel refers to the longitudinal extension direction of the light emitting region of the sub-pixel, and the minor axis direction of the sub-pixel refers to the width direction of the light emitting region of the sub-pixel opposite to the longitudinal extension direction of the light emitting region. Therefore, the center line of the second sub-pixel along the long axis direction thereof refers to a straight line passing through the center of the second sub-pixel along the lengthwise extending direction of the light emitting area of the sub-pixel. For example, as shown in fig. 3, the first triangle and the second triangle are shared by the center connecting line d of the first subpixel 12 and the second subpixel 14, and the center line of the second subpixel 14 in the long axis direction means a straight line passing through the center thereof and extending in the long axis direction. The center line of the second sub-pixel along the long axis direction does not pass through the centers of the third sub-pixel and/or the fourth sub-pixel, so that the sub-pixels in the first pixel unit can be arranged in a staggered mode, and the color edge problem is effectively improved. Further, a projection of a vertex of a common side of the common-sided triangle on a common side opposite to the vertex is located on the common-sided triangle, and the projection is not coincident with a center of the third sub-pixel and/or a center of the fourth sub-pixel. For example, as shown in fig. 3, the projection of the center of the second subpixel 14 (one vertex of the central connecting line d) on the opposite side e (the central of the first subpixel and the central connecting line of the third subpixel) is located on the opposite side e. And the projection is located between the center of the first sub-pixel 12 and the center of the third sub-pixel 16, i.e. not coinciding with the center of the third sub-pixel 16. Correspondingly, the projection of the center of the first subpixel 12 (the other vertex of the central connecting line d) on the opposite side b (the central connecting line of the second subpixel and the fourth subpixel) is located on the opposite side b. And the projection is located between the center of the second sub-pixel 14 and the center of the fourth sub-pixel 18, i.e. not coinciding with the center of the fourth sub-pixel 18. In a preferred embodiment, the projection of the vertex on the opposite side of the vertex on the same side of the triangle with the same side is close to or located at the center point of the opposite side. Therefore, the arrangement of the sub-pixels is more uniform, the color edge phenomenon is further avoided, and the display quality is improved.

The projection of the vertex on the opposite side of the common side is the projection of the vertex on the opposite side along the direction of the opposite side perpendicular to the vertex, that is, the intersection point of the perpendicular line passing through the vertex and perpendicular to the opposite side of the vertex and the opposite side is the projection of the vertex on the opposite side. For example, as shown in fig. 3, a vertex of a common side d of the first triangle and the second triangle is a center of the second sub-pixel 14, a perpendicular line passing through the center of the second sub-pixel and perpendicular to a pair of sides e opposite to the second sub-pixel, and an intersection point with the pair of sides e is a projection of the vertex on the pair of sides opposite to the pair of sides.

It can be understood that the pixel arrangement structure directly determines the display effect, and in order to ensure uniform display, each sub-pixel is generally uniformly arranged as much as possible along the row direction and the column direction in a certain rule, but the existing pixel arrangement structure is also easy to have color fringes and visual granular sensation. By adopting the pixel arrangement structure, the arrangement uniformity, compactness and space among the sub-pixels can be considered, a balance is sought among the three, and the pixel arrangement structure is beneficial to reducing color mixing risk, improving color edges and visual granular sensation. For example, when a display matrix is formed, the sub-pixels are staggered under the limiting conditions, so that the sub-pixels emitting light of the same color are prevented from being singly arranged in a row, and the color edge problem of the display edge is improved. And the sub-pixels arranged in a staggered way enable the sub-pixels positioned at the round corners of the display panel to be more matched with the round corner design, namely, the edge connecting lines of the sub-pixels positioned at the edges are in smooth transition at the round corners and are tangent or matched with the radian of the round corners, so that the problem of sawtooth at the round corners is solved. In addition, by adopting the pixel arrangement structure, the distance between the same-color sub-pixels in the same pixel unit can be properly increased, for example, the distance between the third sub-pixel and the fourth sub-pixel which are sensitive to human eyes is properly increased, and the first sub-pixel and the second sub-pixel are arranged to be close to each other, so that the phenomenon that the sensitive sub-pixels of human eyes cannot be distinguished and are identified as a single display granular sensation during display can be avoided.

It is worth emphasizing that the light incoming quantity and the contrast of the optical signal received by the photosensitive device under the screen can affect the quality of the generated image, and the display panel adopting other pixel arrangement structures has the defects that although the light-permeable areas are more and the total light-permeable area is not different, the area of the continuous light-permeable area in the specific area is smaller, and the light transmittance required by the normal operation of the photosensitive device under the screen cannot be met. By adopting the limiting conditions of the pixel arrangement, the light-transmitting reserved area can be formed by staggered arrangement in one pixel unit, which is beneficial to realizing the manufacture of a display screen such as under-screen camera shooting. For example, as shown in fig. 5 and fig. 6, the first pixel unit and the second pixel unit further include a blank region disposed outside the second sub-pixel 14, where the blank region is the aforementioned light-transmitting reserved region Z, and the blank region can be preset to allow external light to penetrate through to reach the photosensitive device under the screen. In one embodiment, the size of the light-transmitting reserved area in the first direction is 10-90 μm, and the size of the light-transmitting reserved area in the second direction is 20-90 μm.

In some embodiments, the pixel arrangement further comprises a plurality of second pixel units. The first pixel units and the second pixel units are adjacent to each other, and the plurality of first pixel units and the plurality of second pixel units are arranged at intervals in the first direction and the second direction. For example, as shown in fig. 5, the first direction X is a horizontal row direction, and the second direction Y is a vertical column direction, in the first direction, the first pixel units and the second pixel units are alternately arranged at intervals, and in the second direction, the first pixel units and the second pixel units are alternately arranged at intervals. That is, in the first direction and the second direction, any two adjacent first pixel units are spaced apart by one second pixel unit, and any two adjacent second pixel units are spaced apart by one first pixel unit. It is understood that, in other embodiments, the first direction and the second direction may also be other directions intersecting with the row direction and the column direction, which are not limited herein, for example, as shown in fig. 6, the first direction makes an angle of 45 ° with the row direction, and the second direction is perpendicular to the first direction and makes an angle of 45 ° with the column direction.

In some embodiments, each sub-pixel structure in the second pixel unit rotates by a predetermined angle to form mirror symmetry with each sub-pixel structure in the first pixel unit. That is, the shape and size (light emitting area) of the sub-pixel in the first pixel unit and the sub-pixel of the same color in the second pixel unit are the same, and the sub-pixel structure of the sub-pixel in the second pixel unit rotated by a predetermined angle clockwise or counterclockwise is mirror-symmetrical to the structure of the corresponding sub-pixel in the first pixel unit. The predetermined angle is greater than 0 ° and less than 360 °, for example, after each sub-pixel arrangement in the second pixel unit shown in fig. 4 is rotated by 90 °, the sub-pixel arrangement is mirror-symmetrical to each sub-pixel arrangement in the first pixel unit shown in fig. 3 along the first direction. Therefore, the sub-pixels which can not emit light with the same color in the row direction or the column direction are prevented from being singly arranged in a column, the protrusion degree of the sub-pixels positioned in the same row or column is weakened, and the color edge problem of the display edge is further improved. And simultaneously, the color shift can be effectively improved, for example, the third sub-pixel and the fourth sub-pixel can be set as sub-pixels with human eye sensitive colors, such as green sub-pixels, and each green sub-pixel can be surrounded by a red sub-pixel and a blue sub-pixel, so that the color mixing is more uniform, and the color shift is improved. In addition, after each sub-pixel structure in the second pixel unit rotates by a preset angle, the sub-pixel structures in the second pixel unit and each sub-pixel structure in the first pixel unit form mirror symmetry, and a light-transmitting reserved area Z (see figure 6) with a large area can be formed between adjacent pixel units as far as possible, so that the improvement of the lighting area of the photosensitive device under the screen is facilitated. It is understood that, in other embodiments, the sub-pixel structures of the first pixel unit and the second pixel unit may also be the same, and are not limited herein. That is, the minimum repeating unit in the pixel arrangement is one pixel unit.

Further, in some embodiments, in the first direction, the first pixel unit and the second pixel unit adjacent thereto constitute a first pixel group. In the second direction, the first pixel unit and the second pixel unit adjacent to the first pixel unit form a second pixel group. In other words, in the first direction, one first pixel unit and one second pixel unit adjacent thereto constitute a first pixel group; in the second direction, one first pixel unit and one second pixel unit adjacent thereto constitute a second pixel group. In the embodiments shown in fig. 5, 6 and 7, two first pixel units and two second pixel units form a repeating unit by taking the pixel unit as a unit, and the two second pixel units are respectively located at one side of a geometric center connecting line of the two first pixel units. Two adjacent first pixel groups or two adjacent second pixel groups constitute one repeating unit in units of pixel groups, and the plurality of repeating units are arranged in the first direction and the second direction. The center of a third sub-pixel or the center of a fourth sub-pixel in the first pixel group is positioned outside a connecting line of the centers of two second sub-pixels in the first pixel group; and/or the center of the third sub-pixel or the center of the fourth sub-pixel in the second pixel group is positioned outside the connecting line of the centers of the two second sub-pixels in the second pixel group. Therefore, on the premise of ensuring that the sub-pixels are uniformly arranged as much as possible, the sub-pixels can be arranged in a staggered manner, and when the repeating units are repeatedly arranged to form a display matrix, the sub-pixels with the same color are further prevented from being independently arranged in a line, and the protruding degree of the sub-pixels in the same row or line is weakened, so that the color edge problem of the display edge is improved. In order to improve the resolution, a subpixel rendering technique is used, and colors that cannot be displayed need to be borrowed from a neighboring subpixel in order to realize full-color display. Therefore, the uniform arrangement of the sub-pixels means that the distance between the sub-pixels is within a reasonable range, and the problem that the display effect is poor due to the fact that the sub-pixels in a part of regions of the pixel arrangement structure are too small and compact in distance and the sub-pixels in the part of regions are too large and loose is avoided.

It will be appreciated that with Liu Haibing or the application of the technique of opening holes in a display screen, the jaggy feeling of the shaped edge area (e.g., the arc area) of the display area is also a factor affecting the display quality. The inventor of the present application has found that the sub-pixels on different rows are formed in a step shape along the extending direction of the special-shaped edge area, so that when the display panel displays an image, the image jaggy feeling is increased at the special-shaped area, and the display effect of the display panel is affected. Therefore, as an embodiment mode, the plurality of repeating units may be arranged along a first direction and a second direction which are obliquely intersected with the row direction and the column direction, and along with repeated arrangement of the repeating units, the connecting lines of the edges of the plurality of sub-pixels positioned at the special-shaped edge of the display area and the tangent line of the special-shaped edge tend to be coincident or parallel, so that the connecting lines of the edges of the plurality of sub-pixels are more smooth and approximate to the shape of the special-shaped edge, and further, the jaggy feeling of the image at the special-shaped edge can be reduced, which is beneficial to improving the display effect of the display panel. In addition, the sub-pixels positioned at the special-shaped edge of the display area can also comprise a plurality of colors, so that the condition of the color edge formed at the special-shaped edge of the display panel is further reduced, and the display effect of the display panel is further improved. Preferably, the first direction and the second direction are perpendicular to each other, the first direction preferably making an angle of 45 ° with the row direction.

In some embodiments, the center of the third sub-pixel 16 or the center of the fourth sub-pixel 18 is located outside the line connecting the center of the second sub-pixel 14 in the first pixel unit and the center of the second sub-pixel 14 in the second pixel unit adjacent to the first pixel unit. In other words, the center of the third sub-pixel 16 or the center of the fourth sub-pixel 18 in one pixel unit is located outside the connecting line between the center of the second sub-pixel 14 in the pixel unit where the third sub-pixel is located and the center of the second sub-pixel 14 in another pixel unit adjacent to the third sub-pixel. For example, in some embodiments, as shown in fig. 5 and 6, an extension line of a connection line between the center of the second sub-pixel R1 in the first pixel unit and the center of the second sub-pixel R2 in the second pixel unit adjacent to the first pixel unit is staggered from the center of the third sub-pixel G11 and the center of the fourth sub-pixel G12 in the first pixel unit, and the center of the third sub-pixel G11 and the center of the fourth sub-pixel G12 are located on two sides of the extension line of the connection line. The center of the sub-pixel located outside the center line means that the center of the sub-pixel is offset from the center line and the extension line thereof, and for example, the center of the sub-pixel is located on one side of the center line and the extension line thereof.

In a preferred embodiment, the first sub-pixel and the second sub-pixel may be a blue sub-pixel and a red sub-pixel, respectively, and the third sub-pixel and the fourth sub-pixel may be a green sub-pixel, and the light-emitting area of the green sub-pixel is smaller than that of the blue sub-pixel and the red sub-pixel. In the same pixel unit, the length of a connecting line d between the center of the first sub-pixel and the center of the second sub-pixel and the length of a connecting line c between the center of the third sub-pixel and the center of the fourth sub-pixel are different. It will be readily appreciated that the light emitting areas of the sub-pixels that typically emit light of different colors are of different sizes, for example, the light emitting area of the sub-pixel for blue is larger than the light emitting area of the sub-pixels for red and green. By designing the length of the central connecting line d to be different from that of the central connecting line c, the distance between the first sub-pixel and the second sub-pixel and the distance between the third sub-pixel and the fourth sub-pixel can be ensured to meet the preset conditions, so that the sub-pixels are arranged closely as much as possible, the distribution uniformity of the sensitive color sub-pixels is improved, the visual resolution is improved, and the display quality is improved.

In some embodiments, as shown in fig. 3 and 4, in a pixel unit, a length of a connection line e between a center of the first sub-pixel and a center of the third sub-pixel is not equal to a length a of a connection line a between the center of the first sub-pixel and a center of the fourth sub-pixel in the same pixel unit. In one embodiment, the first sub-pixel is a blue sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel and the fourth sub-pixel are green sub-pixels. The center connecting line length of the blue sub-pixel and the center connecting line length of the different green sub-pixels in the same pixel unit are different. In other embodiments, in a pixel unit, the distances from the center of the third sub-pixel and the center of the fourth sub-pixel to the center of the second sub-pixel are not equal. Therefore, on one hand, the adjacent sub-pixels are not easy to be too close, and the situation that the two adjacent sub-pixels are difficult to distinguish and are visually combined into one by human eyes due to the fact that the adjacent sub-pixels are close to each other is further avoided. On the other hand, the length of the connecting line of the centers of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel is set to be different, so that the staggered arrangement of the sub-pixels is intensified, when the first pixel unit and the second pixel unit are repeatedly arranged to form a display matrix, the sub-pixels with the same color are further prevented from being independently arranged in a column, and the protruding degree of the sub-pixels in the same row or column is weakened, so that the color edge problem of the display edge is improved.

Further, the distance ratio of the center of the third sub-pixel and the center of the fourth sub-pixel to the center of the first sub-pixel is (3-2): (2-1). The distances from the center of the third sub-pixel and the center of the fourth sub-pixel to the center of the second sub-pixel are also (3-2): (2-1). It can be understood that the display quality influencing factors include resolution and uniformity in addition to color margin and granular sensation, and therefore, by further defining the ratio of the distances from the centers of the third sub-pixel and the fourth sub-pixel to the centers of the first sub-pixel and the second sub-pixel, the arrangement of the sub-pixels achieves a good balance among uniformity, compactness and dislocation degree, so that the display quality is comprehensively improved.

The center of the sub-pixel may be a geometric center of the sub-pixel pattern, or may be a center of the emission color of the sub-pixel, which is not limited herein.

Further, in the same pixel unit, the minimum distance between two adjacent sub-pixels along the first direction and the second direction is p, and the minimum distance between the most adjacent sub-pixels of different colors in the two adjacent pixel units along the first direction and the second direction is also p. Wherein, 10 um-P-30um were constructed. Therefore, on one hand, the arrangement of the sub-pixels is more uniform, the display quality is favorably improved, and on the other hand, the phenomenon that the light emitting cross color or the interference between the adjacent sub-pixels generates the saw tooth feeling can be effectively avoided. It should be noted that the display panel provided in this embodiment of the present application may be an organic light emitting display panel, where the sub-pixels at least include an anode and a cathode, and a light emitting layer located between the anode and the cathode, and the driving circuit applies a voltage between the anode and the cathode to excite carrier migration, and acts on the light emitting layer, so as to emit light. The display panel may further include a pixel defining layer defining a plurality of pixel openings, and the light emitting layers of the sub-pixels are disposed in the pixel openings to prevent cross color or interference between adjacent sub-pixels. Therefore, the area of the pixel opening is the light emitting area of the sub-pixel, but is limited by the evaporation technology, and in order to ensure that the light emitting material is completely evaporated in the pixel opening, usually, the opening area of the mask plate is larger than the area of the pixel opening, so as to leave the evaporation margin. For example, as shown in fig. 3, the inner side of a sub-pixel is referred to as a pixel side, which is a boundary of a pixel opening of a pixel definition layer (PDL layer), and the outer side is referred to as a dummy side of the sub-pixel, which is a boundary of an evaporation opening of a Mask (Mask). Therefore, in the embodiments of the present application, the pitch between the sub-pixels refers to the distance between the pixel edges of two sub-pixels. Specifically, as shown in fig. 3 and 4, two pixel edges adjacent to and parallel to each other are disposed between two adjacent sub-pixels, and the minimum distance between two adjacent sub-pixels is the perpendicular distance between the two pixel edges adjacent to and parallel to each other.

Further, a minimum distance between the second sub-pixel in the first pixel unit and the third sub-pixel of the second pixel unit adjacently arranged in the first direction is q, and p < q <3p. Therefore, the light-transmitting reserved area can be guaranteed to have enough size, and the light-incoming quantity required by normal work of the photosensitive device under the screen can be further met.

Illustratively, the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel may be a regular pattern or an irregular pattern having a major axis and a minor axis, for example, one of an ellipse, a circle, a sector, a dumbbell, a pear, a quadrangle, a rectangle-like shape, a rounded rectangle, a star, and a heart. As shown in fig. 5, 6 and 7, in a preferred embodiment, each of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel may be rectangular or rectangular-like, and the long axis direction (extending direction) of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel intersects with the row direction and the column direction. Therefore, on one hand, compared with other sub-pixel shapes, the sub-pixels can be arranged closely, the sub-pixels with the same color are prevented from forming a line independently, and the color edge phenomenon is effectively improved. On the other hand, the sub-pixels positioned at the special-shaped edge of the display panel can be matched with the design of the fillet, namely, the inclination of the sub-pixels is tangent to or matched with the radian of the fillet, so that the smooth transition of the edge of each sub-pixel at the fillet is realized, and the problem of sawtooth at the fillet is further solved. Preferably, the extending directions of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel are parallel to the first direction, and the included angle between the extending directions and the row direction or the column direction is 30-60 degrees. Therefore, the inclination of the sub-pixels can be further tangent or matched with the radian of the fillet, the smooth transition of the edge of each sub-pixel at the fillet is realized, and the sawtooth problem at the fillet is further improved. It is emphasized that since the human eye is sensitive to the picture quality in the horizontal or vertical direction and is less sensitive to the picture quality in the direction having an angle of 45 ° with the horizontal direction, as a preferred embodiment, the angle between the first direction and the row direction is 45 ° as shown in fig. 7, which can further improve the overall display quality. Particularly, stress of the mask plate is generally transmitted along the row direction or the column direction, for example, zhang Wangli F is transmitted along the row direction, and the openings of the mask plate, which are obliquely arranged corresponding to the sub-pixels relative to the row direction or the column direction, can decompose the stress in the row direction and the column direction, so that deformation of the openings caused by concentration of FMM Zhang Wangli F is avoided, and the manufacturing difficulty and the screen stretching difficulty of the mask plate are reduced. And the openings of the mask plate are obliquely arranged, so that more openings can be arranged in the mask plate with the same length and width, and the manufacturing cost of the mask is reduced.

Of course, the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel may have other shapes, which is not limited herein, for example, the first sub-pixel may have a square shape, and the second sub-pixel, the third sub-pixel and the fourth sub-pixel may have a rectangular shape.

It should be noted that the quasi-rectangular shape means that the shape of the sub-pixel may not be a strict rectangular shape but a substantially rectangular shape due to process limitations or for manufacturing convenience of the mask, for example, a rounded rectangle or a chamfered rectangle with rounded corners. Wherein the rounded rectangle is a shape in which the corners of the rectangle are rounded, and the corner cut rectangle is a shape in which the corners of the rectangle are cut away by one or more. The aperture opening ratio of the sub-pixels can be adjusted more flexibly by setting the shape of the sub-pixels to be similar to a rectangle, and the limitation condition of the mask plate during manufacturing is met.

In some embodiments of the present application, a projection of at least one vertex on a common side of a common-side triangle on an opposite side of the vertex is located entirely between intersections of two sub-pixel outlines corresponding to the opposite side and the opposite side. In other words, the intersection point of the straight line passing through the vertex on the common side of the common-side triangle and perpendicular to the vertex opposite side and the vertex opposite side is located between the intersection points of the two sub-pixel outlines corresponding to the vertex opposite side and the vertex opposite side. Further, in one pixel unit, the extension line of the side edge of the second sub-pixel along the long axis direction or the tangent line of the side edge does not intersect with the third sub-pixel and/or the fourth sub-pixel in whole. For example, the projection of the sub-pixel corresponding to the vertex on the common side of the common-side triangle on the opposite side of the vertex may be entirely located between the intersection points of the two sub-pixel outlines corresponding to the opposite side of the vertex and the opposite side of the vertex. In this way, the extension line of the side of the second sub-pixel along the long axis direction or the tangent line of the side may not intersect with the third sub-pixel and/or the fourth sub-pixel. In some embodiments, as shown in fig. 3 and 4, the two vertex points that are co-located are the center of the first sub-pixel and the center of the second sub-pixel, respectively. In order to make the arrangement of the sub-pixels more uniform and reduce the manufacturing difficulty, two sub-pixels adjacent to each other have two pixel edges which are opposite and parallel to each other. For example, the first sub-pixel and the third sub-pixel have two pixel edges parallel to each other, which are the contour boundaries of the first sub-pixel and the third sub-pixel. The projection of the second sub-pixel towards the opposite side e is entirely located between the opposite side e and the intersection of the contour of the first sub-pixel and the contour of the second sub-pixel, i.e. the projection of the second sub-pixel towards the opposite side e is located between the opposite side e and the intersection of two mutually opposite and parallel pixel sides of the first sub-pixel and the second sub-pixel. It is to be understood that in the embodiment shown in fig. 3, the whole projection of the first sub-pixel towards the opposite side b is not located between the opposite side b and the central connecting line of the second sub-pixel and the third sub-pixel, but does not hinder the understanding of the technical idea, and in other embodiments, the whole projection of the first sub-pixel towards the opposite side b may be located between the opposite side b and the intersection point of two mutually parallel pixel sides of the second sub-pixel and the third sub-pixel. Therefore, on one hand, the arrangement of the sub-pixels is more uniform, and on the other hand, the staggered arrangement of the sub-pixels further reduces the color edge phenomenon.

In some embodiments, in the same pixel unit, the first sub-pixel has a first long axis and a first short axis; the third sub-pixel has a third major axis and a third minor axis and the fourth sub-pixel has a fourth major axis and a fourth minor axis. That is, each sub-pixel is a regular pattern or an irregular pattern, such as a rectangle or a quasi-rectangle, having a major axis and a minor axis. Therefore, on one hand, compared with other sub-pixel shapes, the sub-pixels can be arranged in a closely staggered manner, the protruding degree of the sub-pixels is weakened, and the color edge phenomenon is effectively improved. Preferably, the third sub-pixel and the fourth sub-pixel are sub-pixels of the same color, for example, sub-pixels of green, and the third major axis and the fourth major axis are parallel to each other and have the same length, and the third minor axis and the fourth minor axis are parallel to each other and have the same length. Further, the ratio of the first long axis to the first short axis is between 1.5 and 1; the ratio of the second long axis to the second short axis is between 5 and 1; the ratio of the third major axis to the third minor axis is between 5 and 1. For example, as shown in fig. 3 and 4, the first sub-pixel is square, the ratio of the first major axis to the first minor axis is 1, the second sub-pixel, the third sub-pixel and the fourth sub-pixel are all rectangular, and the ratio of the major axis to the minor axis of the second sub-pixel, the third sub-pixel and the fourth sub-pixel is 5: 1. Therefore, on the premise of ensuring the aperture opening ratio as much as possible, the sub-pixels can be correspondingly arranged in a staggered manner so as to reduce the color fringe phenomenon as much as possible. And a light-transmitting reserved area with a larger area can be formed between the adjacent sub-pixels as far as possible, so that the improvement of the lighting area of the photosensitive device under the screen is facilitated.

The length of the major axis of the sub-pixel is the maximum dimension of the light emitting region of the sub-pixel in the longitudinal direction, and the length of the minor axis of the sub-pixel is the maximum dimension of the light emitting region of the sub-pixel in the width direction opposite to the longitudinal direction of the light emitting region.

In some embodiments, in the first pixel unit and the second pixel unit adjacent to each other in the first direction, a distance between the second sub-pixel R1 in the first pixel unit and the third sub-pixel G21 in the second pixel unit is greater than a distance between the third sub-pixel G11 and the fourth sub-pixel G12 in the first pixel unit and the second sub-pixel R1. So, can form in each repeating unit in succession and the area can satisfy the printing opacity reservation zone Z of sensitization device normal work under the screen further to improve display panel's luminousness, provide the convenience for display panel's function is diversified. In one embodiment, the area of the light-transmitting reserved area Z is larger than the light-emitting area of one first sub-pixel R1/R2.

In some embodiments, as shown in fig. 7, the pixel arrangement structure includes a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel, wherein centers of two first sub-pixels disposed in alignment and centers of two second sub-pixels disposed in alignment are connected by a vertex to form a virtual quadrangle, and the virtual quadrangle includes two opposite sides, a short side and a long side, and the short side and the long side are opposite to each other; the short side is non-parallel to the long side;

and a third sub-pixel or a fourth sub-pixel is arranged in the virtual quadrangle, and the light emitting color of the third sub-pixel is the same as that of the fourth sub-pixel.

The virtual quadrangle is divided into a first virtual quadrangle in which the third sub-pixel is distributed and a second virtual quadrangle in which the fourth sub-pixel is distributed by using whether the third sub-pixel or the fourth sub-pixel is distributed, and the first virtual quadrangle and the adjacent second virtual quadrangle share the same edge.

In the first virtual quadrangle and the adjacent second virtual quadrangle, the sum of four internal angles formed by the center of the first sub-pixel as the vertex is equal to 360 degrees, and the sum of four internal angles formed by the center of the second sub-pixel as the vertex is equal to 360 degrees.

The length of a first equilateral side of the first virtual quadrangle is not equal to the length of a second equilateral side of the second virtual quadrangle, the length of a short side of the first virtual quadrangle is equal to the length of a short side of the second virtual quadrangle, and the length of a long side of the first virtual quadrangle is equal to the length of a long side of the second virtual quadrangle.

In the column direction, the first virtual quadrangle and the adjacent second virtual quadrangle share a short side or a long side. In the row direction, the first virtual quadrangle and the adjacent inverted first virtual quadrangle share a first equilateral side, and the second virtual quadrangle and the adjacent inverted second virtual quadrangle share a second equilateral side.

The pixel arrangement structure includes a virtual polygon formed by four virtual quadrilaterals arranged in a manner of sharing edges, and the four virtual quadrilaterals specifically include a first virtual quadrilateral 30, a second virtual quadrilateral 40, a third virtual quadrilateral 50 obtained by inverting the first virtual quadrilateral, and a fourth virtual quadrilateral 60 obtained by inverting the second virtual quadrilateral.

The first virtual quadrangle shares a first equilateral with the third virtual quadrangle in the row direction and shares a short side with the second virtual quadrangle in the column direction. The third virtual quadrangle shares a long side with the fourth virtual quadrangle along the column direction, and the fourth virtual quadrangle shares a second equilateral with the second virtual quadrangle along the row direction.

The length of the first equal side is different from the length of the second equal side.

The non-common sides of the first virtual quadrangle, the second virtual quadrangle, the third virtual quadrangle and the fourth virtual quadrangle constitute the sides of the virtual polygon.

The second sub-pixel is positioned at the position of a first vertex of each virtual quadrangle, the first sub-pixel is positioned at the position of a second vertex of each virtual quadrangle, the first vertex and the second vertex are alternately arranged at intervals, and the third sub-pixel or the fourth sub-pixel is positioned in each virtual quadrangle.

And the center connecting line of the two first sub-pixels in the virtual quadrangle is taken as a first diagonal line, the center connecting line of the two second sub-pixels in the virtual quadrangle is taken as a second diagonal line, and the centers of the third sub-pixels and/or the fourth sub-pixels in the virtual quadrangle deviate from the second diagonal line.

Further, any side of each of the virtual quadrangles is not parallel to the row or column direction; or any two opposite sides of each virtual quadrangle are not parallel to each other; or any two internal angles of each of the aforementioned virtual quadrilaterals are not equal. Therefore, the first virtual quadrangle, the second virtual quadrangle, the third virtual quadrangle and the fourth virtual quadrangle are irregular quadrangles, so that a large light-transmitting area can be formed on the premise that the arrangement of the sub-pixels is compact, the light transmittance of the display panel is further improved, and convenience is provided for the function diversification of the display panel.

In some embodiments, as shown in fig. 3 and 4, in one pixel unit, the second sub-pixel 14 has a first side and a second side opposite to each other with the third sub-pixel 16 and the fourth sub-pixel 18, respectively, a third side adjacent to the first side and opposite to the second side, and a fourth side opposite to the first side and connected to the second side and the third side. The extension lines of the second and fourth sides are shifted from the third sub-pixel 16, and the extension lines of the first and fourth sides are shifted from the fourth sub-pixel 18. That is, the third sub-pixel 16 and the fourth sub-pixel 18 are respectively located between corresponding edge extension lines of the second sub-pixel 14. Therefore, the arrangement of the sub-pixels is ensured to be compact as much as possible, the protruding degree of the sub-pixels of the display edge is weakened, and the color edge problem of the display edge is effectively improved.

In some embodiments, the central connecting line of the third sub-pixels located in the same row and/or column is a non-straight line, and the central connecting line of the fourth sub-pixels located in the same row and/or column is a non-straight line. For example, as shown in fig. 5 and 6, the center connecting lines of the green sub-pixels located in the same row and/or column are zigzag. Two green sub-pixels in any pixel group of the odd-numbered row or column and the central connecting line of the two most adjacent green sub-pixels in the pixel group of the adjacent even-numbered row or column form a fifth virtual quadrangle; the minimum internal angle gamma in the fifth virtual quadrangle is more than or equal to 60 degrees. Therefore, the green sub-pixels in the adjacent pixel groups are not easy to be too close, and the situation that two adjacent green sub-pixels are difficult to distinguish and are visually combined into one by human eyes due to the fact that the adjacent green sub-pixels are close to each other is further avoided.

It will be appreciated that in some embodiments, the central connecting line of the first sub-pixels in the same row/column may be a straight line, and the central connecting line of the second sub-pixels in the same row/column may be a straight line. Therefore, the arrangement of the sub-pixels can be more uniform, and the display quality is improved.

Based on the same inventive concept, the present application further provides a mask plate, which is used for manufacturing the pixel arrangement structure provided in the embodiments of the present application, and the mask plate includes a plurality of opening regions, and the opening regions correspond to the shapes and positions of the first sub-pixel 12, the second sub-pixel 14, the third sub-pixel 16, or the fourth sub-pixel 18.

Based on the same inventive concept, the present application also provides a display device including the display panel 100 in the above embodiment.

Specifically, the display device can be applied to the fields of mobile phone terminals, bionic electronics, electronic skins, wearable equipment, vehicle-mounted equipment, internet of things equipment, artificial intelligence equipment and the like. For example, the display device may be a digital device such as a mobile phone, a tablet, a palmtop, an ipod, and a smart watch.

Where the terms "comprising," "having," and "including" are used herein, another component can be added unless an explicit limitation is used, such as "only," "consisting of … …," and the like. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (21)

1. A pixel arrangement structure is characterized by comprising a first pixel unit;

the first pixel unit comprises a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel;

in the first pixel unit, common-side triangles with non-overlapping areas are formed by taking the centers of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel as vertexes; and taking the center of the first sub-pixel and the center of the second sub-pixel as the vertex of the common edge triangle;

the second sub-pixel has a second long axis and a second short axis, and a central line of the second sub-pixel along the long axis direction does not pass through the centers of the third sub-pixel and/or the fourth sub-pixel in the first pixel unit;

the projection of one of the vertexes at the two ends of the common edge triangle on the opposite side of the vertex is positioned on the vertex pair edge and is not superposed with the center of the third sub-pixel or the center of the fourth sub-pixel;

in the first pixel unit, the extension line of the side edge of the second sub-pixel along the long axis direction or the tangent line of the side edge does not intersect with the third sub-pixel and/or the fourth sub-pixel as a whole, and the projection of the second sub-pixel on the opposite side of the vertex is located in the intersection distance between the contour of the two sub-pixels corresponding to the opposite side of the vertex and the opposite side of the vertex.

2. A pixel arrangement according to claim 1, wherein the projection of the vertex on the opposite side of the vertex of the common-sided triangle is located entirely within the distance between the intersection points of the two sub-pixel outlines corresponding to the opposite side and the opposite side of the vertex.

3. A pixel arrangement according to claim 2, wherein the projection of a vertex on a common side of the common-sided triangle on the opposite side to the vertex is located at the centre point of the opposite side.

4. A pixel arrangement according to claim 1, wherein the third and fourth sub-pixels are both green light emitting sub-pixels; the first sub-pixel is a blue light-emitting sub-pixel, and the second sub-pixel is a red light-emitting sub-pixel.

5. A pixel arrangement according to claim 1, further comprising a second pixel unit, wherein a plurality of the first pixel units and a plurality of the second pixel units are arranged at intervals in a first direction and a second direction;

each sub-pixel structure of the second pixel unit is the same as that of the first pixel unit; or

After rotating a preset angle, each sub-pixel structure of the second pixel unit forms mirror symmetry with each sub-pixel structure in the first pixel unit;

the predetermined angle is greater than 0 ° and less than 360 °.

6. A pixel arrangement according to claim 5, wherein the predetermined angle is 90 °.

7. A pixel arrangement according to claim 5, wherein the center of the third sub-pixel or the center of the fourth sub-pixel in the first pixel unit is located outside the center of the second sub-pixel in the first pixel unit and the center connection line or extension line thereof of the second sub-pixel in the second pixel unit adjacent thereto.

8. A pixel arrangement according to claim 5, wherein the first direction and the second direction are perpendicular;

the included angle between the first direction and the row direction is 45 degrees;

the long axis direction of the sub-pixel of the first pixel unit is parallel to the first direction.

9. A pixel arrangement according to claim 1, wherein each sub-pixel is in a regular pattern or an irregular pattern having a major axis and a minor axis;

the first sub-pixel has a first major axis and a first minor axis; the third sub-pixel has a third major axis and a third minor axis; the fourth sub-pixel has a fourth major axis and a fourth minor axis.

10. A pixel arrangement according to claim 9, wherein the shape of the sub-pixels is selected from one of oval, circular, sector, dumbbell, pear, quadrilateral, polygonal, quasi-rectangular, rounded rectangular, star, heart.

11. The pixel arrangement according to claim 9, wherein the second long axis, the third long axis and the fourth long axis are parallel two by two within the first pixel unit.

12. A pixel arrangement according to claim 11, wherein the ratio of the first major axis to the first minor axis is between 1.5 and 1; the ratio of the second long shaft to the second short shaft is between 5 and 1; the ratio of the third long shaft to the third short shaft is between 5 and 1; the ratio of the fourth long axis to the fourth short axis is between 5 and 1.

13. A pixel arrangement according to claim 1, wherein the two triangles of the triangle that are co-edge are acute triangles, and the distance from the center of the third sub-pixel to the center of the second sub-pixel is different from the distance from the center of the fourth sub-pixel to the center of the second sub-pixel.

14. A pixel arrangement according to claim 1, wherein the ratio of the distances from the center of the third sub-pixel and the center of the fourth sub-pixel to the center of the second sub-pixel is (3-2): (2-1).

15. A pixel arrangement according to claim 1, wherein the first pixel cell further comprises a light transmissive pre-cut region disposed outside the second sub-pixel.

16. A pixel arrangement according to claim 15, wherein the area of the light transmissive reserve is larger than the minimum light emitting area of a sub-pixel in the first pixel unit.

17. A pixel arrangement according to claim 16, wherein the light transmissive pre-cut region has a dimension in the range 10 μ ι η to 90 μ ι η in the first direction and a dimension in the range 20 μ ι η to 90 μ ι η in the second direction;

wherein the first direction and the second direction are perpendicular; the included angle between the first direction and the row direction is 45 degrees;

the long axis direction of the sub-pixel of the first pixel unit is parallel to the first direction.

18. A pixel arrangement according to claim 1, wherein, in the row direction, the line connecting the centers of the first sub-pixels of each row is a straight line; the connecting line of the centers of the second sub-pixels in each row is a straight line; and the central connecting line of the third sub-pixel or the fourth sub-pixel in each row is a non-straight line.

19. A pixel arrangement according to claim 1, wherein the centers of the red sub-pixels are not in a straight line in the first direction and the second direction; or

The centers of the green sub-pixels are not on a straight line in the first direction and the second direction; or

In the first direction and the second direction, the centers of the sub-pixels of blue are not on a straight line;

the first direction is perpendicular to the second direction, and an included angle between the first direction and the row direction is 45 degrees;

the long axis direction of the sub-pixels of the first pixel unit is parallel to the first direction.

20. A display panel comprising a pixel arrangement according to any one of claims 1 to 19.

21. A display device characterized by comprising the display panel according to claim 20.

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