CN112436030B

CN112436030B - Pixel arrangement structure, display panel and display device

Info

Publication number: CN112436030B
Application number: CN202010622109.4A
Authority: CN
Inventors: 刘明星; 王煜; 马天; 赵栋; 邵静; 邵阳; 彭兆基; 李俊峰
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2022-10-18
Anticipated expiration: 2040-07-01
Also published as: CN112436030A

Abstract

The invention relates to a pixel arrangement structure, which comprises a plurality of first pixel units and a plurality of second pixel units, wherein the first pixel units and the second pixel units are arranged at intervals in a first direction and a second direction; each of the first pixel unit and the second pixel unit comprises a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel; the first sub-pixel is positioned on one side of a central connecting line of the third sub-pixel and the fourth sub-pixel, and the second sub-pixel is positioned on the other side of the central connecting line of the third sub-pixel and the fourth sub-pixel; after rotating a preset angle, each sub-pixel structure in the second pixel unit is in mirror symmetry with each sub-pixel structure in the first pixel unit. The pixel arrangement structure can give consideration to the arrangement compactness of the sub-pixels and the space between the sub-pixels, a balance is sought between the arrangement compactness and the space between the sub-pixels, and the pixel arrangement structure has high resolution and is beneficial to reducing the color mixing risk and color cast, improving the color edge and improving the visual granular sensation. 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 resolution difference of human eyes to sub-pixels of different colors, and realize the same Pixel resolution Rendering capability by sharing sub-pixels of 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 plurality of first pixel units and a plurality of second pixel units, the plurality of first pixel units and the plurality of second pixel units being arranged at intervals in a first direction and a second direction;

each of the first pixel unit and the second pixel unit comprises a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel; the first sub-pixel is positioned on one side of a central connecting line of the third sub-pixel and the fourth sub-pixel, and the second sub-pixel is positioned on the other side of the central connecting line of the third sub-pixel and the fourth sub-pixel;

after the second pixel unit rotates for a preset angle, each sub-pixel structure and each sub-pixel structure in the first pixel unit form mirror symmetry;

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

According to the pixel arrangement structure, after the sub-pixel structures in the second pixel unit are rotated by the preset angle, the sub-pixel structures in the second pixel unit and the sub-pixel structures in the first pixel unit form mirror symmetry, the arrangement compactness of the sub-pixels and the space between the sub-pixels can be considered, a balance is sought between the two, and the pixel arrangement structure has high resolution, and is beneficial to reducing color mixing risk and color cast, improving color edges and improving visual granular sensation.

In one embodiment, the length of a connecting line between the center point of the second sub-pixel and the center point of the third sub-pixel in the first pixel unit is not equal to the length of a connecting line between the center point of the second sub-pixel and the center point of the fourth sub-pixel in the first pixel unit;

the length of a connecting line between the center point of the second sub-pixel and the center point of the third sub-pixel in the second pixel unit is not equal to the length of a connecting line between the center point of the second sub-pixel and the center point of the fourth sub-pixel in the second pixel unit.

In one embodiment, two first pixel units and two second pixel units adjacent to each other constitute a repeating unit; a plurality of the repeating units are arranged in a first direction and a second direction;

in each repeating unit, the two second pixel units are respectively positioned on one side of a connecting line of the geometric centers of the two first pixel units.

In an embodiment, in one repeating unit, in any one of the second pixel unit and the first pixel unit adjacent to the second pixel unit in the first direction, a length of a connection line between a center point of the second sub-pixel in the second pixel unit and a center point of the third sub-pixel is L1, and a length of a connection line between a center point of the second sub-pixel in the first pixel unit and a center point of the third sub-pixel in the second pixel unit is L2; the L1 is not equal to L2;

in the second pixel unit and another first pixel unit adjacent to the second pixel unit in the second direction, a connection line between a center point of the second sub-pixel in the second pixel unit and a center point of the fourth sub-pixel in the another first pixel unit has a length of L3, and a connection line between a center point of the second sub-pixel and a center point of the fourth sub-pixel in the another first pixel unit has a length of L4; the L3 ≠ L4.

In one embodiment, in one repeating unit, in any one of the second pixel units and the first pixel unit adjacent to the second pixel unit in the first direction, a connection line of center points of the second sub-pixel, the third sub-pixel in the second pixel unit, and the second sub-pixel in the first pixel unit forms a scalene triangle;

and in the second pixel unit and another first pixel unit adjacent to the second pixel unit in the second direction, the connection line of the second sub-pixel and the fourth sub-pixel in the another first pixel unit and the central point of the second sub-pixel in the second pixel unit form a scalene triangle.

In an embodiment, in one repeating unit, a central connecting line of any two of the second sub-pixels is not overlapped with a central connecting line of any one of the second sub-pixels and a central connecting line of the third sub-pixel, and a central connecting line of any two of the second sub-pixels is not overlapped with a central connecting line of any one of the second sub-pixels and a central connecting line of the fourth sub-pixel.

In one embodiment, in one of the repeating units, first virtual connection lines passing through the first sub-pixel center and the third sub-pixel center in each of the first pixel units are parallel to each other; a second virtual connecting line passing through the centers of the first sub-pixel and the fourth sub-pixel in each second pixel unit is mutually parallel; the first virtual connecting line and the second virtual connecting line are not coincident.

In one embodiment, in one of the repeating units, a line passing through the center of the first subpixel and the center of the second subpixel in one of the first pixel units and a line passing through the center of the first subpixel and the center of the second subpixel in the other of the first pixel units are not coincident; a connecting line passing through the centers of the first sub-pixels and the centers of the second sub-pixels in one second pixel unit is not overlapped with a connecting line passing through the centers of the first sub-pixels and the centers of the second sub-pixels in another second pixel unit; and a connecting line passing through the centers of the first sub-pixels and the centers of the second sub-pixels in any one of the first pixel units is not coincident with a connecting line passing through the centers of the first sub-pixels and the centers of the second sub-pixels in any one of the second pixel units.

In one embodiment, in one of the repeating units, a third virtual connection line passing through the second sub-pixel center and the third sub-pixel center in each of the first pixel units is parallel to each other; a fourth virtual connecting line passing through the centers of the second sub-pixels and the fourth sub-pixels in each second pixel unit is mutually parallel; the third virtual connecting line and the fourth virtual connecting line are not coincident.

In an embodiment, 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 in the first pixel unit and the fourth sub-pixel in the second pixel unit is greater than a distance between the third sub-pixel and the second sub-pixel in the first pixel unit, and a distance between the second sub-pixel in the first pixel unit and the fourth sub-pixel in the second pixel unit is greater than a distance between the fourth sub-pixel and the second sub-pixel.

In an embodiment, after being rotated clockwise by an angle of 90 °, each sub-pixel arrangement in the second pixel unit is mirror-symmetrical to each sub-pixel arrangement in the first pixel unit.

In an embodiment, the color of the first sub-pixel is blue, the color of the second sub-pixel is red, the color of the third sub-pixel is green, and the color of the fourth sub-pixel is green.

In an embodiment, the first sub-pixel has a square shape or a square-like shape, the second sub-pixel has a rectangular shape or a rectangular-like shape, and the third sub-pixel and the fourth sub-pixel have a rectangular shape or a rectangular-like shape.

In an embodiment, a light emitting area of the first sub-pixel is larger than a light emitting area of the second sub-pixel, and a light emitting area of the second sub-pixel is larger than a light emitting area of the third sub-pixel or the fourth sub-pixel.

In one embodiment, the light emitting areas of the third sub-pixel and the fourth sub-pixel are the same.

In an embodiment, the second sub-pixel, the third sub-pixel and the fourth sub-pixel have the same light emitting area.

In an embodiment, the long side of the second sub-pixel is parallel to a set of opposite sides of the first sub-pixel, the long side of the third sub-pixel, and the long side of the fourth sub-pixel.

In an embodiment, in the first pixel unit, an extension line of one side of the first sub-pixel close to the edge of the first pixel unit coincides with an extension line of one short side of the third sub-pixel close to the same side edge of the first pixel unit;

an extension line of the other side of the first sub-pixel close to the edge of the first pixel unit is superposed with an extension line of a long side of the fourth sub-pixel close to the edge of the first pixel unit on the same side.

In an embodiment, an extension line of at least one of the two long sides of the second sub-pixel passes through a gap between the first sub-pixel and the third sub-pixel.

In one embodiment, an extension line of one long side of the second sub-pixel passes through a gap between the first sub-pixel and the third sub-pixel, and an extension line of the other long side of the second sub-pixel coincides with a side of the first sub-pixel close to the third sub-pixel.

In one embodiment, extension lines of two long sides of the second sub-pixel pass through a gap between the first sub-pixel and the third sub-pixel.

In an embodiment, the length of the long side of the second sub-pixel, the third sub-pixel and the fourth sub-pixel is the same as the length of the long side of the first sub-pixel.

According to another aspect of the present application, there is provided a display panel including the pixel arrangement structure as described in the above embodiments.

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 layout in the prior art;

FIG. 2 is a schematic view 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 arrangement of a repeating unit according to an embodiment of the present disclosure;

FIG. 6 is a schematic layout diagram of a display matrix according to an embodiment of the present application;

fig. 7 is a schematic partial structure diagram of a pixel arrangement structure according to an embodiment of the present disclosure.

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 to 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 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 for vapor depositing each sub-pixel light emitting material layer is a Fine Metal Mask (FMM, fine Metal Mask) or a Fine Mask for short, which is limited by the size of the openings of the Fine Mask, the size of the space between the openings, and the difficulty of screening, and the pixel density (PPI, 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, colors which cannot be displayed by the pixel need to be borrowed from the adjacent sub-pixels. Therefore, when the pixel arrangement structure displays, due to the difference in the number of the sub-pixels of each color in the row direction and/or the column direction, or the difference in the degree of protrusion of the sub-pixels at the display edge, a color edge appears at the edge of the picture, which affects the display quality.

Meanwhile, for the display panel to have a good light emitting effect, the 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 the 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, it is more and more widespread to provide a photosensitive device in an off-screen display area, for example, a fingerprint recognition device is provided in the off-screen display area. 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 at least one 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. Specifically, the display area 10 may be rectangular, and the non-display area 20 is provided 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-mentioned 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 layout of a display matrix in an embodiment of the present application.

The pixel arrangement structure in at least one embodiment of the present disclosure includes a plurality of first pixel units and 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 and 6, the first pixel unit and the second pixel unit are alternately arranged in the first direction X, and the first pixel unit and the second pixel unit are alternately arranged in the second direction Y. 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. As a specific embodiment, 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. Therefore, the sub-pixels can be compactly arranged, the space is fully utilized, and the aperture opening ratio is improved.

The first pixel unit and the second pixel unit each include a first sub-pixel 12, a second sub-pixel 14, a third sub-pixel 16a, and a fourth sub-pixel 16b. The first sub-pixel 12, the second sub-pixel 14, the third sub-pixel 16a, and the fourth sub-pixel 16b may be one of a red sub-pixel, a blue sub-pixel, and a green sub-pixel, respectively. Of course, in other embodiments, the first sub-pixel 12, the second sub-pixel 14, the third sub-pixel 16a, and the fourth sub-pixel 16b may also be sub-pixels emitting light of colors other than red, green, and blue, such as white or yellow, and are not limited herein. It will be appreciated that the different colours of light have different wavelengths, higher wavelengths meaning that the energy of the light is higher, which tends to cause decay of the organic light-emissive material, making it easier for the sub-pixel emitting the higher energy photon 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 the microcavity effect, so that amplification and constructive interference are performed, the brightness of the light is increased, and the color cast condition is further amplified. In a preferred embodiment, the light emitting area of the blue sub-pixel is larger than the light emitting areas of the red and green sub-pixels, so that the display defects caused by the different attenuation rates of the organic light emitting materials emitting light of different colors can be reduced to some extent. For example, in the embodiment 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 16a and the fourth sub-pixel 16b are green sub-pixels. The light emitting area of the first sub-pixel 12 is larger than the light emitting area of the second sub-pixel 14, and the light emitting area of the second sub-pixel 14 is larger than the light emitting area of the third sub-pixel 16a or the fourth sub-pixel 16b. 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, 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.

In one pixel unit, a common-side triangle which forms a common side with the respective centers of the first sub-pixel 12, the second sub-pixel 14, the third sub-pixel 16a and the fourth sub-pixel 16b as vertexes and does not overlap is provided. Specifically, as shown in fig. 3 and 4, the first sub-pixel 12 is located on one side of a central connecting line c of the third sub-pixel 16a and the fourth sub-pixel 16b, and the second sub-pixel 14 is located on the other side of the central connecting line c of the third sub-pixel 16a and the fourth sub-pixel 16b. The centers of the first sub-pixel 12, the second sub-pixel 14, the third sub-pixel 16a and the fourth sub-pixel 16b are sequentially connected to form a virtual quadrangle, the midpoint connecting lines of the second sub-pixel 14, the first sub-pixel 12 and the third sub-pixel 16a form a first triangle (not shown), and the center connecting lines of the second sub-pixel 14, the first sub-pixel 12 and the fourth sub-pixel 16b form a second triangle. The first triangle and the second triangle take the center of the first sub-pixel and the center connecting line d of the second sub-pixel as a common side, and the two triangles do not overlap each other. In a preferred embodiment, the triangle with the same side is an acute triangle, so that the sub-pixels of the pixel structure are arranged more uniformly, which is beneficial to improving the display effect. And after rotating a preset angle, each sub-pixel structure in the second pixel unit is in 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 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 ° clockwise, each sub-pixel arrangement in the first pixel unit shown in fig. 3 is mirror-symmetric with each sub-pixel arrangement in the first pixel unit along the first direction.

It can be understood that the pixel arrangement structure directly determines the display effect, and in order to ensure uniform display, as shown in fig. 1, the sub-pixels are usually arranged as regularly as possible along the row direction and the column direction, but the pixel arrangement structure is prone to color cast, color fringing, and visual granular sensation. By adopting the pixel arrangement structure disclosed by the embodiment of the application, after each sub-pixel structure in the second pixel unit rotates by a preset angle, the second pixel unit and each sub-pixel structure in the first pixel unit form mirror symmetry, so that the arrangement compactness of the sub-pixels and the distance between the sub-pixels can be considered, a balance is sought between the arrangement compactness of the sub-pixels and the distance between the sub-pixels, and the reduction of color mixing risk and color cast, the improvement of color edges and visual granular sensation are facilitated. For example, the third sub-pixel 16a and the fourth sub-pixel 16b may be configured as sub-pixels of colors sensitive to human eyes, such as green sub-pixels, each of which may be surrounded by a red sub-pixel and a blue sub-pixel, which effectively improves color shift. For another example, when the first pixel unit and the second pixel unit are repeatedly arranged to form a display matrix, each sub-pixel structure in the second pixel unit rotates by a predetermined angle and then forms mirror symmetry with each sub-pixel structure in the first pixel unit, so that sub-pixels emitting light of the same color are prevented from being independently arranged in a column in the row direction or the column direction, and the color edge problem of the display edge is effectively improved. In addition, by adopting the pixel arrangement structure, the distance between the same-color sub-pixels in the same pixel unit can be properly enlarged, for example, the distance between the third sub-pixel 16a and the fourth sub-pixel 16b which are sensitive to human eyes is properly enlarged, and the first sub-pixel 12 and the second sub-pixel 14 are arranged to be close to each other, so that not only can the phenomenon that the sensitive sub-pixels of human eyes cannot be distinguished and identified as a display granular sensation caused during display be avoided, but also a light-transmitting reserved area Z (see fig. 6) with a large area can be formed between the adjacent pixel units as far as possible, and the improvement of the lighting area of the photosensitive device under the screen is facilitated.

In some embodiments, the length of the connecting line d between the center of the second sub-pixel 14 and the center of the first sub-pixel 12, and the connecting line c between the center of the third sub-pixel 16a and the center of the fourth sub-pixel 16b in the same pixel unit 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 the length of the central connecting line c, the distance between the second sub-pixel 14 and the first sub-pixel 12 and the distance between the third sub-pixel 16a and the fourth sub-pixel 16b 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, the length of the central connection line a between the second sub-pixel 14 and the third sub-pixel 16a in the first pixel unit is not equal to the length b of the central connection line between the second sub-pixel 14 and the fourth sub-pixel 16b in the first pixel unit. The length of the central connection line between the second sub-pixel 14 and the third sub-pixel 16a in the second pixel unit is not equal to the length of the central connection line between the second sub-pixel 14 and the fourth sub-pixel 16b in the second pixel unit. In particular, in the embodiment, the second sub-pixel 14 is a red sub-pixel, the first sub-pixel 12 is a blue sub-pixel, and the third sub-pixel 16a and the fourth sub-pixel 16b are green sub-pixels. The center connecting line length of the red sub-pixel and the center connecting line length of the different green sub-pixels in the same pixel unit are different. Therefore, 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 row, the protruding degree of the sub-pixels in the same row or column is weakened, and the color edge problem of the display edge is 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.

In some embodiments, in the same pixel unit, the minimum distance between two adjacent sub-pixels along the first direction and the second direction is n, 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 n. Wherein, 10um-n-woven fabrics are 30um. 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.

Further, as shown in fig. 5, the minimum distance between the second sub-pixel R1 in the first pixel unit and the third sub-pixel G21 of the second pixel unit adjacently arranged in the second direction is p, n < p <3n. The minimum distance between the second sub-pixel R2 in the second pixel unit and the third sub-pixel G11 of the first pixel unit adjacently arranged in the first direction is q, n < q <3n. Therefore, the light-transmitting reserved area Z can be defined to have enough size, and the light inlet quantity required by normal work of the photosensitive device under the screen is further met.

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, generally, the opening area of the mask plate is larger than the area of the pixel opening, so as to leave an 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. Preferably, each pixel edge of each sub-pixel and the corresponding virtual edge are parallel to each other and have the same vertical distance from the corresponding virtual edge. Therefore, the final sub-pixel arrangement is more uniform and regular, the manufacturing precision and yield of the luminous layer of the sub-pixel can be effectively improved, and the wrinkle risk generated when a Mask is screened is reduced.

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, a quasi-rectangle, a rounded rectangle, a star, and a heart. As shown in fig. 5 and fig. 6, as 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 to 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 problem of saw teeth 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. 6, which can further improve the overall display quality. Particularly, stress of the mask plate is usually transmitted along the row direction or the column direction, for example, the stretching force F is transmitted along the row direction, and the openings of the mask plate, which are obliquely arranged relative to the row direction or the column direction corresponding to the sub-pixels, can decompose the stress in the row direction and the column direction, so that the deformation of the openings caused by the concentration of the stretching force F of the FMM is avoided, and the manufacturing difficulty and the 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.

In one embodiment, the first sub-pixel may be square or square-like, the second sub-pixel may be rectangular or rectangular-like, and the third sub-pixel and the fourth sub-pixel may be rectangular or rectangular-like. Therefore, when the sub-pixels are closely arranged, the sub-pixels can be arranged in a staggered mode, and the color edge is effectively improved. It should be noted that the quasi-rectangular or quasi-square means that the shape of the sub-pixel may not be a strict rectangular or square due to process limitations or for manufacturing convenience of the mask, but may be a substantially rectangular or square, for example, a rounded rectangle with rounded corners or a corner-cut rectangle. The corner cut rectangle is a shape formed by cutting off one or more corners of the rectangle. The sub-pixels are set to be similar to rectangles or squares, so that the aperture opening ratio of the sub-pixels can be adjusted more flexibly, and the limitation condition of the mask plate during manufacturing is met.

In some embodiments, the light emitting areas of the third and fourth sub-pixels are the same. For example, the third sub-pixel and the fourth sub-pixel may be configured as sub-pixels of colors sensitive to human eyes, so that the resolution can be improved as much as possible and the display can be more uniform. Further, the light emitting areas of the second sub-pixel, the third sub-pixel and the fourth sub-pixel may also be the same. Therefore, the arrangement of the sub-pixels is more compact and uniform on the whole, and the display effect is improved. In particular to some embodiments, the first sub-pixel has a first major axis and a first minor axis; the second sub-pixel has a second long axis and a second short axis; the third sub-pixel has a third long axis and a third short axis, and the fourth sub-pixel has a fourth long axis and a fourth short axis. That is, each sub-pixel is a regular pattern or an irregular pattern having a major axis and a minor axis, such as the aforementioned rectangular or rectangular-like pattern. The third sub-pixel and the fourth sub-pixel are sub-pixels of the same color, for example, sub-pixels of green, the third long axis and the fourth long axis are parallel to each other and have the same length, and the third short axis and the fourth short axis are parallel to each other and have the same length, so that the light emitting areas of the third sub-pixel and the fourth sub-pixel are equal.

In some embodiments, 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 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 second major axis to the second 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, the long side of the second sub-pixel 14 is parallel to a set of opposing sides of the first sub-pixel 12, the long side of the third sub-pixel 16, and the long side of the fourth sub-pixel 18. It will be appreciated that the first sub-pixel is square or square-like so that a set of opposite sides thereof are parallel to each other and of equal length, while the third and fourth sub-pixels are rectangular or rectangular-like having a set of long sides parallel to each other and a set of short sides parallel to each other. For example, as shown in fig. 3, the first sub-pixel 12 has first and second sides opposite to each other with the third and fourth sub-pixels 16a and 16b, 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 and third sides. Wherein the first and fourth sides of the first sub-pixel 12 and the long side of the second sub-pixel 14 are parallel to each other, and the long sides of the third and fourth sub-pixels 16a and 16b are parallel to each other. Therefore, the uniform arrangement of the sub-pixels is facilitated, and the display quality is improved.

In some embodiments, in the first pixel unit, an extension line of one side of the first sub-pixel 12 close to the edge of the first pixel unit coincides with an extension line of one short side of the third sub-pixel 16a close to the same side edge of the first pixel unit. The extension line of the other side of the first sub-pixel 12 close to the edge of the first pixel unit coincides with the extension line of one long side of the fourth sub-pixel 16b close to the same side edge of the first pixel unit. In one pixel unit, the third side of the first sub-pixel 12 may be collinear with the short side of the third sub-pixel 16a, and the fourth side of the first sub-pixel 12 may be collinear with the long side of the fourth sub-pixel. Therefore, the pixel units are ensured to be in a regular shape as much as possible, and the arrangement of the sub-pixels is more compact and uniform.

In some embodiments, as shown in fig. 3 and 4, the extension line of the second side of the first sub-pixel 12 is staggered with respect to the third sub-pixel 16a, and the extension line of the first side is staggered with respect to the fourth sub-pixel 16b. Therefore, the dislocation degree between the sub-pixels is ensured, the protrusion degree of the sub-pixels at the display edge is weakened, and the color edge problem of the display edge is effectively improved.

In some embodiments, the length of the long side of the second sub-pixel, the third sub-pixel, and the fourth sub-pixel may be the same as the length of the side of the second sub-pixel. Therefore, the first pixel unit is further made to be in a regular shape, and the arrangement of the sub-pixels is more compact and uniform.

In some embodiments, an extension line of at least one of the two long sides of the second sub-pixel 14 passes through the gap between the first sub-pixel 12 and the third sub-pixel 16 a. Further, an extension line of one long side of the second sub-pixel 14 passes through the gap between the first sub-pixel 12 and the third sub-pixel 16a, and an extension line of the other long side of the second sub-pixel 14 coincides with a side of the first sub-pixel 12 close to the third sub-pixel 16 a. For example, as shown in fig. 3 and 4, an extension line of one long side of the second sub-pixel 14 passes between the first sub-pixel 12 and the third sub-pixel 16 a. The extension of the other long side of the second sub-pixel 14 is collinear with the first side of the first sub-pixel. Therefore, on the premise of enabling the sub-pixels to be uniformly distributed, the size of the light-transmitting reserved area is ensured as much as possible, and the realization of the function of shooting under a screen is facilitated. Of course, in other embodiments, the extension lines of the two long sides of the second sub-pixel 14 pass through the gap between the first sub-pixel 12 and the third sub-pixel 16 a. That is, translating the second sub-pixel 14 in the first direction can pass between the first sub-pixel 12 and the third sub-pixel 16 a.

Referring to fig. 5 and 6, in some embodiments of the present application, two first pixel units and two second pixel units adjacent to each other form a repeating unit; a plurality of repeating units arranged in a first direction X and a second direction Y; each repeating unit comprises two first pixel units and two second pixel units, and the two second pixel units are respectively positioned on one side of a connecting line of the geometric centers of the two first pixel units. For example, as shown in fig. 5 and 6, a plurality of repeating units are arrayed in a first direction and a second direction to form a display matrix. It will be appreciated that with the use of the bang screen or display screen aperture technology, the jagged feel of the display area's contoured edge area (e.g., the curved area) is also a factor in 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 the first direction X and the second direction Y intersecting the row direction and the column direction, and along with the repeated arrangement of the repeating units, the connection lines of the edges of the plurality of sub-pixels located at the irregular edge of the display area and the tangent line of the irregular edge tend to coincide or be parallel, so that the connection lines of the edges of the plurality of sub-pixels are more smooth and approximate to the shape of the irregular edge, and further, the jaggy feeling of the image at the irregular 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.

In some embodiments, as shown in fig. 5 and fig. 6, in one repeating unit, in any one of the second pixel units and the first pixel unit adjacent to the second pixel unit in the first direction X, a connection line between a center point of the second sub-pixel R2 in the second pixel unit and a center point of the third sub-pixel G21 is L1, a connection line between a center point of the second sub-pixel R1 in the first pixel unit and a center point of the third sub-pixel G21 in the second pixel unit is L2, and L1 ≠ L2. In the second pixel unit and another first pixel unit adjacent to the second pixel unit in the second direction Y, a connection length between a center point of the second sub-pixel R2 in the second pixel unit and a center point of the fourth sub-pixel G12 in the another first pixel unit is L3, a connection length between a center point of the second sub-pixel R1 in the another first pixel unit and a center point of the fourth sub-pixel G12 in the another first pixel unit is L4, and L3 ≠ L4. That is, in the same repeating unit, the length of the center connecting line of the red sub-pixel and the green sub-pixel in two adjacent pixel units is different. Therefore, the staggered arrangement of the sub-pixels is ensured, 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 row, the protruding degree of the sub-pixels in the same row or column is weakened, and the color edge problem of the display edge is improved.

In some embodiments, in one of the repeating units, in any one of the second pixel units and the first pixel unit adjacent thereto in the first direction X, a connection line of center points of the second sub-pixel R2, the third sub-pixel G21 in the second pixel unit, and the second sub-pixel R1 in the first pixel unit forms a scalene triangle. In the second pixel unit and another first pixel unit adjacent to the second pixel unit in the second direction Y, the connection line of the center points of the second sub-pixel R1 and the fourth sub-pixel R12 in the another first pixel unit and the second sub-pixel R2 in the second pixel unit form a scalene triangle. That is, in the same repeating unit, the center connecting lines of the red sub-pixel in one second pixel unit, and the red sub-pixel and the different green sub-pixel in the first pixel unit adjacent to the second pixel unit in the row direction and the column direction, respectively, may form a scalene triangle. Therefore, when the first pixel unit and the second pixel unit are repeatedly arranged to form the 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.

In some embodiments, in one repeating unit, any two second sub-pixel center connecting lines are not overlapped with any one second sub-pixel center connecting line and any one third sub-pixel center connecting line, and any two second sub-pixel center connecting lines are not overlapped with any one second sub-pixel center connecting line and any one fourth sub-pixel center connecting line. For example, in some embodiments, the second sub-pixel is a red sub-pixel, the first sub-pixel is a blue sub-pixel, and the third and fourth sub-pixels are green sub-pixels. A connecting line between any two red sub-pixels, for example, a central connecting line between the third sub-pixels R1 and R2 in the adjacent pixel units, is not collinear with a central connecting line between any two of R1/R2 and G11/G12/G21/G22. In other words, the central connecting line of the two red sub-pixels R1 and R2 in the first and second pixel units adjacent to each other in the first direction in the same repeating unit passes through between the blue sub-pixels B2 and G21 in the same pixel unit in the adjacent first and second pixel units. Similarly, the central connecting line of the two red sub-pixels R1 and R2 in the first pixel unit and the second pixel unit adjacent to each other in the second direction passes through the blue sub-pixels B1 and G11 in the same pixel unit in the adjacent first pixel unit and second pixel unit. Therefore, the pixel arrangement structure can integrally avoid the sub-pixels emitting the same color light from being independently arranged in a line, further weakens the projection degree of the sub-pixels on the display edge, and effectively improves the color edge problem of the display edge.

In some embodiments, in one repeating unit, first virtual connection lines passing through the first subpixel center and the third subpixel center in each first pixel unit are parallel to each other; second virtual connecting lines passing through the centers of the first sub-pixels and the fourth sub-pixels in each second pixel unit are parallel to each other; the first virtual connecting line and the second virtual connecting line are not coincident. In the embodiment, as shown in fig. 5 and 6, the central connecting lines of B1 and G11 and the central connecting lines of B2 and G22 in the same repeating unit are parallel to each other. In the same repeating unit, the extension lines of the central line connecting lines of the blue sub-pixel and the green sub-pixel in the pixel units of the two same sub-pixel structures are not collinear. Therefore, the pixel arrangement structure can integrally avoid the sub-pixels emitting the same color light from being independently arranged in a line, the protruding degree of the sub-pixels at the display edge is weakened, and the color edge problem at the display edge is effectively improved.

In some embodiments, in one repeating unit, a line connecting the centers of the first sub-pixels and the second sub-pixels in one first pixel unit and a line connecting the centers of the first sub-pixels and the second sub-pixels in another first pixel unit are not coincident. The connecting line of the centers of the first sub-pixel and the second sub-pixel in one second pixel unit is not overlapped with the connecting line of the centers of the first sub-pixel and the second sub-pixel in the other second pixel unit. The connecting line of the centers of the first sub-pixel and the second sub-pixel in any one of the first pixel units is not overlapped with the connecting line of the centers of the first sub-pixel and the second sub-pixel in any one of the second pixel units. That is, as shown in fig. 5 and 6, in the same repeating unit, the extension lines of the center connecting lines of the red sub-pixel and the blue sub-pixel in different pixel units are not collinear. For example, two central connecting lines of the red sub-pixel R1 and the blue sub-pixel B1 in the two first pixel units and two central connecting lines of the red sub-pixel R2 and the blue sub-pixel B2 in the two second pixel units are not collinear. It can be understood that, because the first sub-pixel and the second sub-pixel are located at two sides of the line connecting line in the third sub-pixel and the fourth sub-pixel, and the center connecting lines of the red sub-pixel and the blue sub-pixel of different pixel units in the same repeating unit are set to be not collinear, the sub-pixels in the same column include multiple colors, and the color edge problem of the display edge is effectively improved.

In some embodiments, in one repeating unit, a third virtual connection line passing through the second sub-pixel center and the third sub-pixel center in each first pixel unit is parallel to each other; a fourth virtual connecting line passing through the centers of the second sub-pixels and the fourth sub-pixels in each second pixel unit is mutually parallel; the third virtual connecting line and the fourth virtual connecting line are not coincident. In an embodiment, as shown in fig. 5 and fig. 6, in the same repeating unit, the extension lines of the central line connecting lines of the red sub-pixel and the green sub-pixel in the pixel units of the two same sub-pixel structures are not collinear. Therefore, the pixel arrangement structure can integrally avoid the sub-pixels emitting the same color light from being independently arranged in a line, the protrusion degree of the sub-pixels at the display edge is weakened, and the color edge problem at the display edge is effectively improved.

It is worth emphasizing that the light incoming quantity and the contrast of the optical signal received by the photosensitive device under the screen both affect the image quality of the generated object, 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 areas of the continuous light-permeable areas in the specific area are smaller and the light transmittance required by the normal operation of the photosensitive device under the screen cannot be met. In some embodiments of the present application, in a first pixel unit and a second pixel unit adjacent to each other in the first direction X, a distance between a second sub-pixel R1 in the first pixel unit and a fourth sub-pixel G21 in the second pixel unit is greater than a distance between a third sub-pixel G11 and a fourth sub-pixel G12 in the first pixel unit and the first sub-pixel R1. Therefore, each repeating unit can form a continuous light-transmitting reserved area Z, so that the light transmittance of the display panel is improved, and convenience is provided for the function diversification of the display panel. In one embodiment, the area of the light-transmitting reserved area Z is larger than the light-emitting area of one second sub-pixel R1/R2.

It is understood that each repeating unit includes two first pixel units, two second pixel units, and a light-transmitting reserved area formed by a space between adjacent sub-pixels. Preferably, each repeating unit is located in one virtual square, and when the repeating units are arranged in the array, the virtual squares are arranged in the form of a shared edge in the array to form a display matrix. Therefore, the display uniformity is facilitated, and the display effect is improved.

In some embodiments, as shown in fig. 7, the pixel arrangement structure includes a virtual polygon formed by four virtual quadrilaterals arranged in a shared-edge manner, the four virtual quadrilaterals including in particular a first virtual quadrilateral 30, a second virtual quadrilateral 40, a third virtual quadrilateral 50 and a fourth virtual quadrilateral 60. The first virtual quadrangle 30 shares a first shared edge g with the fourth virtual quadrangle 60 in the row direction and shares a second shared edge h with the second virtual quadrangle 40 in the column direction. The third virtual quadrangle 50 shares a third shared edge j with the fourth virtual quadrangle in the column direction and a fourth shared edge i with the second virtual quadrangle 40 in the row direction. The sides of the first virtual quadrangle 30, the second virtual quadrangle 40, the third virtual quadrangle 50 and the fourth virtual quadrangle 60 facing away from the shared side constitute the sides of the virtual polygons. The first sub-pixel is located at the position of a first vertex of each virtual quadrangle, the second sub-pixel is located 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 green sub-pixel is located in each virtual quadrangle.

Further, any side of each of the virtual quadrangles is not parallel to the row or column direction; or the lengths of any two edges of each virtual quadrangle are not equal; or any two 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, in one pixel unit, the opening area of the first sub-pixel is staggered with the opening areas of the second sub-pixel and the third sub-pixel along the first direction X, that is, the opening area of the second sub-pixel has no projection overlap area with the opening of the first sub-pixel and the opening of the third sub-pixel along the first direction X. Thus, the arrangement between the sub-pixels can be made more compact. In other embodiments, an extension line of a side of at least the second sub-pixel away from the fourth sub-pixel does not pass through the opening area of the third sub-pixel. For example, the opening area of the second sub-pixel may partially overlap with the opening area of the first sub-pixel in the first direction X, but not overlap with the third sub-pixel.

In some embodiments, the center connecting lines of the green sub-pixels located in the same row and/or column are non-straight lines or approximate straight lines. 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.

Based on the same inventive concept, the present application further provides a mask plate for manufacturing the pixel arrangement structure provided in the embodiments of the present application, where 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 16a, or the fourth sub-pixel 16b.

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 may be added unless a specific limiting term is used, such as "only," "consisting of 8230; \8230composition," etc. 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 specific and detailed, but not to be understood 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 should be subject to the appended claims.

Claims

1. A pixel arrangement structure is characterized by comprising a plurality of first pixel units and a plurality of second pixel units, wherein the first pixel units and the second pixel units are arranged at intervals in a first direction and a second direction;

after the second pixel unit rotates by 90 degrees, the sub-pixel structures are in mirror symmetry with the sub-pixel structures in the first pixel unit.

2. A pixel arrangement according to claim 1, wherein the length of the line connecting the center point of the second sub-pixel and the center point of the third sub-pixel in the first pixel unit is not equal to the length of the line connecting the center point of the second sub-pixel and the center point of the fourth sub-pixel in the first pixel unit;

3. A pixel arrangement according to claim 1, wherein two first pixel units and two second pixel units adjacent to each other constitute a repeating unit; a plurality of the repeating units are arranged in a first direction and a second direction;

in each repeating unit, the two second pixel units are respectively positioned at one side of a connecting line of the geometric centers of the two first pixel units.

4. A pixel arrangement according to claim 3, wherein in a repeating unit, in any one of said second pixel unit and a first pixel unit adjacent thereto in the first direction, a length of a line connecting a center point of said second sub-pixel in said second pixel unit and a center point of said third sub-pixel is L1, and a length of a line connecting a center point of said second sub-pixel in said first pixel unit and a center point of said third sub-pixel in said second pixel unit is L2; the L1 is not equal to L2;

5. A pixel arrangement according to claim 3, wherein in one of the repeating units, a line connecting center points of the second sub-pixel, the third sub-pixel in the second pixel unit, and the second sub-pixel in the first pixel unit, in any one of the second pixel unit and the first pixel unit adjacent thereto in the first direction, forms a scalene triangle;

and in the second pixel unit and another first pixel unit adjacent to the second pixel unit in the second direction, the connection line of the second sub-pixel and the fourth sub-pixel in the another first pixel unit and the central point of the second sub-pixel in the second pixel unit forms a scalene triangle.

6. A pixel arrangement according to claim 3, wherein in one of said repeating units, a line connecting centers of any two of said second sub-pixels is non-coincident with a line connecting centers of any one of said second sub-pixels and a center of said third sub-pixel, and a line connecting centers of any two of said second sub-pixels is non-coincident with a line connecting centers of any one of said second sub-pixels and a center of said fourth sub-pixel.

7. A pixel arrangement according to claim 3, wherein in one of said repeating units, first virtual connecting lines in each of said first pixel units passing through a first sub-pixel center and a third sub-pixel center are parallel to each other; second virtual connecting lines passing through the centers of the first sub-pixels and the fourth sub-pixels in each second pixel unit are parallel to each other; the first virtual connecting line and the second virtual connecting line are not coincident.

8. A pixel arrangement according to claim 3, wherein in one of the repeating units, a line passing through the center of the first sub-pixel and the center of the second sub-pixel in one of the first pixel units and a line passing through the center of the first sub-pixel and the center of the second sub-pixel in the other of the first pixel units are non-coincident; a connecting line passing through the centers of the first sub-pixels and the centers of the second sub-pixels in one second pixel unit is not overlapped with a connecting line passing through the centers of the first sub-pixels and the centers of the second sub-pixels in another second pixel unit; and a connecting line passing through the centers of the first sub-pixels and the second sub-pixels in any one of the first pixel units is not coincident with a connecting line passing through the centers of the first sub-pixels and the second sub-pixels in any one of the second pixel units.

9. A pixel arrangement according to claim 3, wherein in one of said repeating units, third virtual connecting lines passing through the second sub-pixel center and the third sub-pixel center in each of said first pixel units are parallel to each other; a fourth virtual connecting line passing through the centers of the second sub-pixels and the fourth sub-pixels in each second pixel unit is parallel to each other; the third virtual connecting line and the fourth virtual connecting line are not coincident.

10. A pixel arrangement according to claim 3, wherein in the first pixel unit and a second pixel unit adjacent to each other in the first direction, a distance between the second sub-pixel in the first pixel unit and the fourth sub-pixel in the second pixel unit is larger than a distance between the third sub-pixel in the first pixel unit and the second sub-pixel, and a distance between the second sub-pixel in the first pixel unit and the fourth sub-pixel in the second pixel unit is larger than a distance between the fourth sub-pixel and the second sub-pixel.

11. A pixel arrangement according to claim 1, wherein the first sub-pixel is blue in color, the second sub-pixel is red in color, the third sub-pixel is green in color, and the fourth sub-pixel is green in color.

12. The pixel arrangement according to claim 11, wherein the first sub-pixel has a square or square-like shape, the second sub-pixel has a rectangular or rectangular-like shape, and the third and fourth sub-pixels have a rectangular or rectangular-like shape.

13. The pixel arrangement according to claim 12, wherein the first sub-pixel has a light emitting area larger than a light emitting area of the second sub-pixel, and the second sub-pixel has a light emitting area larger than a light emitting area of the third sub-pixel or the fourth sub-pixel.

14. A pixel arrangement according to claim 13, wherein the light emitting areas of the third and fourth sub-pixels are the same.

15. A pixel arrangement according to claim 14, wherein the light emitting areas of the second sub-pixel, the third sub-pixel and the fourth sub-pixel are the same.

16. A pixel arrangement according to claim 12, wherein the long side of the second sub-pixel is parallel to a set of opposite sides of the first sub-pixel, the long side of the third sub-pixel and the long side of the fourth sub-pixel.

17. A pixel arrangement structure according to claim 16, wherein in the first pixel unit, an extension line of one side of the first sub-pixel near the edge of the first pixel unit coincides with an extension line of one short side of the third sub-pixel near the same side edge as the first pixel unit;

18. A pixel arrangement according to claim 17, wherein an extension line of at least one of the two long sides of the second subpixel passes through a gap between the first subpixel and the third subpixel.

19. A pixel arrangement according to claim 18, wherein an extension of one long side of the second sub-pixel passes through a gap between the first sub-pixel and the third sub-pixel, and an extension of the other long side of the second sub-pixel coincides with a side of the first sub-pixel close to the third sub-pixel.

20. A pixel arrangement according to claim 18, wherein the extensions of both long sides of the second sub-pixel pass through the gap between the first sub-pixel and the third sub-pixel.

21. A pixel arrangement according to any one of claims 12-20, wherein the length of the long side of the second sub-pixel, the third sub-pixel and the fourth sub-pixel is the same as the length of the side of the first sub-pixel.

22. A display panel comprising a pixel arrangement according to any one of claims 1 to 21.

23. A display device comprising the display panel according to claim 22.