CN114335102A

CN114335102A - Display panel and display device

Info

Publication number: CN114335102A
Application number: CN202111623902.7A
Authority: CN
Inventors: 黄伟; 马扬昭; 乐琴
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-04-12

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel comprises a plurality of repeating units, wherein each repeating unit comprises a plurality of sub-pixels and a plurality of supporting columns; the sub-pixels include a first sub-pixel, a second sub-pixel and a third sub-pixel which are different in color from each other; the first sub-pixel and a second sub-pixel and a third sub-pixel adjacent to the first sub-pixel form a pixel, the second sub-pixel is shared by two adjacent pixels, the third sub-pixel is shared by two adjacent pixels, and the adjacent pixels do not share the first sub-pixel; wherein the number ratio of the support columns to the pixels in the repeating unit is 1: 3. The support column can carry out even effectual support to the high accuracy mask that uses in each different colour sub-pixel coating by vaporization technology when display panel makes, guarantees each different colour sub-pixel coating by vaporization homogeneity, avoids the bad demonstration colour cast that leads to of coating by vaporization.

Description

Display panel and display device

Technical Field

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

Background

An Organic Light-Emitting Diode (OLED) is a device that generates electroluminescence using a multi-layered Organic thin film structure, is easy to fabricate, and requires only a low driving voltage. Compared with the traditional liquid crystal display screen, the OLED display screen is thinner, lighter, high in brightness, low in power consumption, fast in response, high in definition, good in flexibility and high in luminous efficiency, and can meet new requirements of consumers on display technologies. In the prior art, the arrangement mode of the sub-pixels in the OLED display screen needs to be designed in order to improve the display effect, and meanwhile, the arrangement of the support columns needs to be designed in a matched sub-pixel arrangement mode, so that the yield of the sub-pixel evaporation process is ensured, and the display effect is ensured.

Disclosure of Invention

The embodiment of the invention provides a display panel and a display device, which are used for improving the yield of a sub-pixel evaporation process and improving the display effect.

In a first aspect, an embodiment of the present invention provides a display panel, where the display panel includes a plurality of repeating units, where each repeating unit includes a plurality of sub-pixels and a plurality of supporting pillars; the pixel includes a first sub-pixel, a second sub-pixel and a third sub-pixel which are different in color from each other; the first sub-pixel and a second sub-pixel and a third sub-pixel adjacent to the first sub-pixel form a pixel, the second sub-pixel is shared by two adjacent pixels, the third sub-pixel is shared by two adjacent pixels, and the adjacent pixels do not share the first sub-pixel;

wherein the number ratio of the support columns to the pixels in the repeating unit is 1: 3.

In a second aspect, an embodiment of the present invention further provides a display device, including the display panel provided in any embodiment of the present invention.

The display panel and the display device provided by the embodiment of the invention have the following beneficial effects: the display panel provided by the embodiment of the invention comprises a plurality of repeating units, and the number ratio of supporting columns to pixels in one repeating unit is 1: 3. Namely, one supporting column is correspondingly arranged at the position of every three pixels. The arrangement density of the support columns in the display panel is high. The support column can carry out even effectual support to the high accuracy mask that uses in each different colour sub-pixel coating by vaporization technology when display panel makes, guarantees each different colour sub-pixel coating by vaporization homogeneity, avoids the bad demonstration colour cast that leads to of coating by vaporization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without inventive labor.

Fig. 1 is a schematic view of a display panel according to an embodiment of the invention;

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

FIG. 3 is a schematic diagram of a partial enlarged display panel provided in the embodiment of FIG. 2;

FIG. 4 is a schematic diagram of a partial enlarged display panel provided in the embodiment of FIG. 2;

FIG. 5 is a schematic view of another display panel according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of another display panel according to an embodiment of the present invention;

FIG. 7 is a schematic view of another display panel according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a display panel according to an embodiment of the invention;

fig. 9 is a schematic view of a display device according to an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

The embodiment of the invention provides a display panel, which is matched with the arrangement mode of sub-pixels to design the arrangement of supporting columns. The support columns can uniformly support the mask in the sub-pixel evaporation process, the yield of the evaporation process is ensured, and the display effect is improved.

The display panel provided by the embodiment of the invention comprises a plurality of repeating units, wherein each repeating unit comprises a plurality of sub-pixels and a plurality of supporting columns. A plurality of repeating units are periodically arranged in the display panel. Fig. 1 is a schematic view of a display panel according to an embodiment of the present invention, and as shown in fig. 1, a sub-pixel sp in the display panel includes a first sub-pixel sp1, a second sub-pixel sp2, and a third sub-pixel sp3 that are different from each other in color. The first sub-pixel sp1, the second sub-pixel sp2 and the third sub-pixel sp3 are respectively one of a red sub-pixel, a green sub-pixel and a blue sub-pixel. When the display panel displays, the first sub-pixel sp1, one second sub-pixel sp2 and one third sub-pixel sp3 which are adjacent to the first sub-pixel sp1 form one pixel P, the second sub-pixel sp2 is shared by two adjacent pixels P, the third sub-pixel sp3 is shared by two adjacent pixels P, and the adjacent pixels P do not share the first sub-pixel sp 1. One pixel P serves as a display unit, so that the display resolution of the display panel can be improved.

One repeating unit Y in the display panel is shown in fig. 1. In the display panel, a plurality of repeating units Y are periodically arranged, and adjacent repeating units Y share a sub-pixel sp on one side and a supporting pillar 10.

The repeating unit Y comprises a first virtual quadrangle 20, wherein one supporting column 10 is respectively arranged at four vertex angles of the first virtual quadrangle 20, one or two supporting columns 10 are arranged on the edges of the first virtual quadrangle 20 except the supporting columns 10 at the vertex angles, and a plurality of supporting columns 10 are distributed in the first virtual quadrangle 20; the contribution of the support column 10 located at the vertex angle to the repeating unit Y is one quarter of the support columns 10, the contribution of the support columns 10 located on the sides of the first virtual quadrangle 20 to the repeating unit Y except the support columns 10 located at the vertex angle is one half of the support columns 10, and the contribution of each support column 10 located inside the first virtual quadrangle 20 to the repeating unit Y is one support column 10. In the above calculation manner, the contribution of the four support columns 10 located at the four vertex angles of the first virtual quadrangle 20 to the repeating unit Y is 1 support column 10; the support columns 10 located on the sides of the first virtual quadrangle 20 except at the vertex positions are 6 in total, and the contribution of these 6 support columns 10 to the repeating unit Y is 3 support columns 10; inside the first virtual quadrangle 20 there are also 8 support columns 10. The repeating unit Y includes a total of 12 support columns 10.

The sub-pixels sp located on the sides of the first virtual quadrangle 20 contribute one-half of the sub-pixels to the repeating unit Y, and the sub-pixels sp located inside the first virtual quadrangle 20 contribute one sub-pixel to the repeating unit Y. By calculating the number of sub-pixels in the above manner, it can be seen that 36 first sub-pixels sp1, 18 second sub-pixels sp2, and 18 third sub-pixels sp3 are included in the total in the repeating unit Y, and in combination with the configuration of the pixel P, it can be seen that the repeating unit Y illustrated in fig. 1 includes 36 pixels in total.

The ratio of the number of support columns 10 and pixels P in one repeating unit Y in the embodiment of the present invention is 1: 3. That is, a support column 10 is correspondingly arranged at the position of every three pixels P. The arrangement density of the support columns 10 in the display panel is large. When the display panel is manufactured, the supporting columns 10 can uniformly and effectively support high-precision mask plates used in different color sub-pixel sp evaporation plating processes, so that the uniformity of the different color sub-pixel sp evaporation plating is ensured, and display color cast caused by poor evaporation plating is avoided.

In some embodiments, the first sub-pixel sp1 is a green sub-pixel, and the second sub-pixel sp2 and the third sub-pixel sp3 are one red sub-pixel and the other blue sub-pixel.

In some embodiments, fig. 2 is a schematic view of another display panel provided in the embodiments of the present invention,

one repeat unit Y is illustrated in fig. 2. Fig. 3 is a partially enlarged schematic view of the display panel provided in the embodiment of fig. 2.

As shown in fig. 2, two second subpixels sp2 and two third subpixels sp3 constitute the first virtual trapezoid 30, the center of the second subpixel sp2 and the center of the third subpixel sp3 are respectively located at the vertex of the first virtual trapezoid 30, and the subpixels sp located at the diagonal positions of the first virtual trapezoid 30 have the same color; inside the first virtual trapezoid 30, a first sub-pixel sp1 is arranged. One first sub-pixel sp1 and three further first sub-pixels sp1 located inside the first virtual trapezoid 30 constitute a second virtual trapezoid 40, the center of the first sub-pixel sp1 being located at the vertex of the second virtual trapezoid 40; one second sub-pixel sp2 or one third sub-pixel sp3 is disposed inside the second virtual trapezoid 40. The sub-pixel sp in the embodiment of the present invention is an organic light emitting device or an inorganic light emitting device. The subpixel sp includes a first electrode, a light emitting layer, and a second electrode stacked. Here, the center of the sub-pixel sp is understood as the geometric center of the light emitting layer pattern.

A first virtual ladder 30 and a second virtual ladder 40 are illustrated in fig. 3. It can be seen from fig. 3 that the first virtual trapezoid 30 and the second virtual trapezoid 40 each comprise two parallel sides and two oblique sides. The parallel sides of the first virtual trapezoid 30 include a first short side 3-1 and a first long side 3-2, the length of the first short side 3-1 is less than the length of the first long side 3-2, an included angle formed by the first long side 3-2 and one oblique side of the first virtual trapezoid 30 is α 1, and an included angle formed by the first long side 3-2 and the other oblique side is α 2.α 1 and α 2 are the base angles of the first virtual trapezoid 30, respectively. The parallel sides of the second virtual trapezoid 40 comprise a second short side 4-1 and a second long side 4-2, the length of the second short side 4-1 is smaller than the length of the second long side 4-2, an included angle formed by the second long side 4-2 and one oblique side of the second virtual trapezoid 40 is beta 1, and an included angle formed by the second long side 4-2 and the other oblique side is beta 2.β 1 and β 2 are the base angles of the second virtual trapezoid 40, respectively.

Wherein | α 1+ α 2) - (β 1+ β 2) | is less than or equal to 10 °. In the embodiment of the present invention, the centers of the two second sub-pixels sp2 and the two third sub-pixels sp3 form the first virtual trapezoid 30, that is, there is a misalignment between the second sub-pixels sp2 and the third sub-pixels sp3 arranged in the first direction x. In other words, there is an offset of the second sub-pixel sp2 or the third sub-pixel sp3 in the first direction x. Thereby, the color edge phenomenon of the edge of the display area along the first direction x can be weakened. The four first sub-pixels sp1 form the second virtual trapezoid 40, and there is a misalignment between the first sub-pixels sp1 arranged in the second direction y, in other words, there is a misalignment between the parts of the first sub-pixels sp1 arranged in the second direction y. The number of the first sub-pixels sp1 exposed alone in the second direction y becomes small, thereby weakening the color fringing phenomenon at the edge of the display area in the second direction y. Meanwhile, the difference value of the bottom angles of the two trapezoids is within a certain preset range, so that on one hand, the color edge phenomenon of all edges of the display panel can be improved simultaneously; on the other hand, the offset of the three sub-pixels can be adjusted, so that the first virtual trapezoid 30 and the second virtual trapezoid 40 form a regular pattern with small difference, the effect is good when characters are displayed, and the display uniformity is ensured. In addition, the first sub-pixel sp1 that is shifted may also be close to the other two sub-pixels, making the color fringing light. Compared with the diamond arrangement in the prior art, the display panel provided by the embodiment of the invention can lighten the color edge effect and improve the display effect of the display panel.

In some embodiments, α 1 ═ α 2, the arrangement is such that the arrangement of the second sub-pixel sp2 and the third sub-pixel sp3 is more uniform and compact, which is beneficial to ensuring the display effect and the aperture ratio of the display panel.

In some embodiments, β 1 — β 2 is arranged such that the arrangement of the first sub-pixel sp1 and the third sub-pixel sp3 is more uniform, which is beneficial to ensure the display effect of the display panel.

In some embodiments, α 1 ═ α 2 ═ β 1 ═ β 2.

As illustrated in connection with fig. 3, the first virtual trapezoid 30 comprises two parallel sides and two oblique sides. As shown in FIG. 2, portions of the support posts 10 are located on parallel sides of a first virtual trapezoid 30, such as the support posts 10 in the first virtual trapezoid 30-1 illustrated in FIG. 2; the remaining portions of the support columns 10 are located on the diagonal edges of the first virtual trapezoid 30, such as the support columns 10 in the first virtual trapezoid 30-2 illustrated in FIG. 2. The directions of extension of the parallel sides and the oblique sides are different in the first virtual trapezoid 30. When the supporting pillar 10 is located on the parallel side of the first virtual trapezoid 30, two sides of the supporting pillar 10 in the second direction y are respectively adjacent to the second sub-pixel sp2 and the third sub-pixel sp 3. When the supporting pillar 10 is located on the oblique side of the first virtual trapezoid 30, two sides of the supporting pillar 10 in the first direction x are adjacent to the second sub-pixel sp2 and the third sub-pixel sp3, respectively. The first direction x intersects the second direction y. When the display panel displays, the supporting pillars 10 may have a certain influence on the light emitted from the sub-pixels sp adjacent to the supporting pillars 10, that is, the supporting pillars 10 may block the light emitted from the sub-pixels sp adjacent to the supporting pillars. The design of the embodiment of the present invention enables the supporting pillar 10 to block the light emitted from the second sub-pixel sp2 and the light emitted from the third sub-pixel sp3 in both the first direction x and the second direction y, instead of blocking the light emitted from the sub-pixel sp only in one direction, and is beneficial to enabling the supporting pillar 10 to have substantially the same influence on the light emitted from the second sub-pixel sp2 and the light emitted from the third sub-pixel sp 3. Therefore, the problem of color cast of display under different visual angles can be improved, and the overall display effect is improved.

In some embodiments, fig. 4 is a partially enlarged schematic view of the display panel provided in the embodiment of fig. 2. As shown in fig. 4, the minimum distance from the support pillar 10 to the nearest second sub-pixel sp2 is d1, and the minimum distance from the support pillar 10 to the nearest third sub-pixel sp3 is d2, where d1 is d 2. Wherein the minimum distance of the support pillar 10 from the sub-pixel sp adjacent thereto is calculated as the distance between the edge of the support pillar 10 and the edge of the sub-pixel sp. In the manufacturing of the display panel, the support posts 10 can support a mask used in vapor deposition of the second sub-pixel sp2, and can also support a mask used in vapor deposition of the third sub-pixel sp 3. According to the embodiment of the invention, the minimum distance between the support column 10 and the second sub-pixel sp2 is equal to the minimum distance between the support column 10 and the third sub-pixel sp3, so that when the alignment deviation in a certain range exists between the mask and the display panel to be evaporated in the evaporation process, the support column 10 can still effectively support the mask, and the yield of the evaporation process is improved. In addition, the supporting column 10 can be ensured to have basically the same light-emitting influence on the second sub-pixel sp2 and the third sub-pixel sp3 on two sides of the supporting column, and the problem of color cast of display under different viewing angles can be solved.

In some embodiments, fig. 5 is a schematic view of another display panel according to an embodiment of the present invention, and as shown in fig. 5, the repeating unit Y includes three supporting pillar rows 10H extending in the first direction x and arranged in the second direction Y. The support columns 10 in the three support column rows 10H are all located on the parallel sides of the first virtual trapezoid 30 on which they are located; the support columns 10 arranged between two adjacent support column rows 10H are all located on the oblique side of the first virtual trapezoid 30 where they are located. The support posts 10 located on the parallel sides of the first virtual trapezoid 30 block the light emitted from the second sub-pixel sp2 and the third sub-pixel sp3 in the second direction y, and the support posts 10 located on the oblique sides of the first virtual trapezoid 30 block the light emitted from the second sub-pixel sp2 and the third sub-pixel sp3 in the first direction x. In this embodiment, the support pillars 10 on the parallel sides of the first virtual trapezoid 30 and the support pillars 10 on the oblique side of the first virtual trapezoid 30 are arranged alternately in the second direction y, so that the shielding of the support pillars 10 on the light emitted from the second sub-pixel sp2 in the first direction x and the shielding of the light emitted from the second sub-pixel sp2 in the second direction y can be performed alternately, the shielding of the support pillars 10 on the light emitted from the third sub-pixel sp3 in the first direction x and the shielding of the light emitted from the third sub-pixel sp3 in the second direction y can be performed alternately, the uniformity of the light emitted from the second sub-pixel sp2 and the uniformity of the light emitted from the third sub-pixel sp3 in different directions can be improved, and the problem of color shift displayed in different viewing angles can be further improved.

As shown in fig. 5, the oblique side where the support columns 10 between the two adjacent support column rows 10H are located and the parallel side where the support columns 10 in the support column rows 10H are located do not belong to the same first virtual trapezoid 30. See first virtual ladder 30-3 and first virtual ladder 30-4 illustrated in FIG. 5. Support column 10-1 is located in support column row 10H and support column 10-2 is located between two adjacent support column rows 10H, wherein support column 10-1 is located on a parallel side of first virtual trapezoid 30-3, support column 10-2 is located in first virtual trapezoid 30-4, and support column 10-1 and support column 10-2 belong to different first virtual trapezoids 30. So set up so that, the distance difference of the support column 10 that is located between two adjacent support column rows 10H apart from these two support column rows 10H on second direction y can not be too big, can promote the homogeneity that support column 10 arranged on second direction y, guarantees that support department 10 can carry out effective even support to the mask version.

As shown in fig. 5, the support posts 10 in the same support post row 10H are all located on the first short side 3-1 or are all located on the first long side 3-2. Two adjacent support column rows 10H: the support posts 10 in one support post row 10H are located on the first short side 3-1 and the support posts 10 in the other support post row 10H are located on the first long side 3-2. In one repeating unit Y, the support columns 10 in the 1 st support column row 10H and the 3 rd support column row 10H arranged in the second direction Y are located on the first long side 3-2, and the support columns 10 in the 2 nd support column row 10H are located on the first short side 3-1. In this embodiment, the positions of the support pillars 10 in the support pillar row 10H in the first virtual trapezoid 30 where the support pillars 10 are located are set, so that the arrangement regularity of the support pillars 10 can be further improved, and the influence of the support pillars 10 on the light outgoing from the second sub-pixel sp2 and the light outgoing from the third sub-pixel sp3 in the first direction x and the second direction y is basically the same, thereby improving the color cast problem in different viewing angles and improving the overall display effect. In addition, in combination with the above-mentioned embodiment in which the support columns 10 in two adjacent support column rows 10H are all located on the parallel sides of the first virtual trapezoid 30, in the repeating unit Y, the arrangement rule of the support columns 10 in the second direction Y is: located at the first short side of the first virtual trapezoid 30, located at the hypotenuse of the first virtual trapezoid 30, located at the first long side of the first virtual trapezoid 30, located at the hypotenuse of the first virtual trapezoid 30, located at the first short side of the first virtual trapezoid 30, and so on, alternately. The supporting columns 10 are regularly arranged, so that the supporting columns 10 alternately perform the shielding of the light emitted from the second sub-pixels sp2 in the first direction x and the shielding of the light emitted from the second sub-pixels sp2 in the second direction y, the supporting columns 10 alternately perform the shielding of the light emitted from the third sub-pixels sp3 in the first direction x and the shielding of the light emitted from the third sub-pixels sp3 in the second direction y, the uniformity of the light emitted from the second sub-pixels sp2 and the uniformity of the light emitted from the third sub-pixels sp3 in different directions can be improved, and the problem of color cast displayed under different viewing angles is further improved.

As shown in fig. 5, the number of the support columns 10 in the three support column rows 10H is equal, and the number of the support columns 10 in the adjacent two support column rows 10H is a constant value. In the embodiment of fig. 5, the number of the support columns 10 in the support column row 10H is 4, and the number of the support columns 10 in two adjacent support column rows 10H is 3. In the embodiment of the present invention, the supporting columns 10 in the supporting column row 10H are located on the parallel edges of the first virtual trapezoid 30 where the supporting columns are located, and the supporting columns 10 in the two adjacent supporting column rows 10H are located on the oblique edges of the first virtual trapezoid 30 where the supporting columns are located. And set up the support column 10 number in two adjacent support column rows 10H as the definite value, can promote the homogeneity that support column 10 arranged, guarantee that support column 10 carries out effective even support to the mask version, promote the yield of sub-pixel sp coating by vaporization.

With continued reference to FIG. 5, four support columns 10 are included in the support column row 10H; three support columns 10 are provided between two adjacent support column rows 10H, and the three support columns 10 are located in the same row in the first direction x. In fig. 5, a 1 st support column row 10H, a 2 nd support column row 10H, and a 3 rd support column row 10H are sequentially arranged from bottom to top in the second direction y. Wherein the support column 10 between the 1 st support column row 10H and the 2 nd support column row 10H is adjacent to the second sub-pixel sp2 on the left side in the first direction x, and is adjacent to the third sub-pixel sp3 on the right side in the first direction x; the support column 10 between the 2 nd support column row 10H and the 3 rd support column row 10H is adjacent to the third sub-pixel sp3 on the left side in the first direction x, and is adjacent to the second sub-pixel sp2 on the right side in the first direction x. That is, in one repeating unit Y, the support column 10 located between two adjacent support column rows 10H is located on the oblique side of the first virtual trapezoid 30, and the three support column rows 10H are arranged to divide the support column 10 located on the oblique side of the first virtual trapezoid 30 into two. One of the support pillars 10 is adjacent to the second sub-pixel sp2 on the left side and the third sub-pixel sp3 on the right side in the first direction x, and the other support pillar 10 is adjacent to the third sub-pixel sp3 on the left side and the second sub-pixel sp2 on the right side in the first direction x. And when the number of the support columns 10 between two adjacent support column rows 10H is set to be a fixed value, the two support columns 10 in the repeating unit Y can be equal in number. With such an arrangement, when a user views the display panel at a left side viewing angle in the first direction x, there are some supporting pillars 10 blocking the light emitted from the second sub-pixel sp2, and there are also some supporting pillars 10 blocking the light emitted from the third sub-pixel sp 3; when a user views the display panel at a right viewing angle in the first direction x, there are some supporting pillars 10 blocking light exiting from the second sub-pixel sp2, and there are also some supporting pillars 10 blocking light exiting from the third sub-pixel sp 3. The problem of color cast displayed under different visual angles can be further improved, and the display effect is improved.

As shown in fig. 5, in the repeating unit Y: among the three support column rows 10H arranged in the second direction y, the 1 st support column row 10H and the 3 rd support column row 10H constitute a pair of sides of the first virtual quadrangle 20; in the first direction x, the support columns 10 located at both ends of the three support column rows 10H form the other pair of sides of the first virtual quadrangle 20; on a pair of sides of the first virtual quadrangle 20 extending along the first direction x, two first sub-pixels sp1 are spaced between two adjacent support columns 10; on the other pair of sides of the first virtual quadrangle 20 extending in the second direction y, two adjacent support columns 10 are spaced by one first short side 3-1 and one first long side 3-2, i.e. two first virtual trapezoids 30 are spaced between two adjacent support columns 10. The arrangement enables the supporting columns 10 on the side of the first virtual quadrangle 20 to be arranged approximately at equal intervals, and the arrangement uniformity of the supporting columns 10 is improved. Moreover, the support columns 10 in the three support column rows 10H can be all positioned on the parallel edges of the first virtual trapezoid 30 where the support columns are positioned; the supporting columns 10 arranged between the two adjacent supporting column rows 10H are all located on the oblique sides of the first virtual trapezoid 30 where the supporting columns are located, so that the shielding of the second sub-pixels sp2 on the light outgoing in the first direction x and the shielding of the second sub-pixels sp2 on the light outgoing in the second direction y are alternately performed, the shielding of the third sub-pixels sp3 on the light outgoing in the first direction x and the shielding of the third sub-pixels sp3 on the light outgoing in the second direction y are also alternately performed, the uniformity of the light outgoing of the second sub-pixels sp2 and the uniformity of the light outgoing of the third sub-pixels sp3 in different directions can be improved, and the problem of color cast displayed under different viewing angles is improved. In addition, the oblique side where the support column 10 between two adjacent support column rows 10H is located and the parallel side where the support column 10 in the support column row 10H is located do not belong to the same first virtual trapezoid 30, so that the distance difference between the support column 10 between two adjacent support column rows 10H and the two support column rows 10H in the second direction y is not too large, the uniformity of arrangement of the support column 10 in the second direction y can be improved, and the support part 10 can be guaranteed to effectively and uniformly support the mask. In addition, in the evaporation process, when a certain deviation exists between the mask and the alignment of the display panel to be evaporated, more than half of the support columns 10 can still be ensured to support the mask, and the support columns 10 can be ensured to effectively and uniformly support the mask.

In another embodiment, fig. 6 is a schematic view of another display panel according to an embodiment of the present invention, as shown in fig. 6, the repeating unit Y includes three supporting column rows 10H arranged in the second direction Y, where the number of supporting columns 10 in the three supporting column rows 10H is equal to 3; the number of the support columns 10 in the adjacent two support column rows 10H is 4.

A first virtual quadrangle 20 is illustrated in the embodiment of fig. 6, wherein four support columns 10 located at four top corners of the first virtual quadrangle 20 contribute 1 support column 10 to the repeating unit Y; the support columns 10 located on the sides of the first virtual quadrangle 20 except at the vertex positions are 4 in total, and the contribution of these 4 support columns 10 to the repeating unit Y is 2 support columns 10; inside the first virtual quadrangle 20 there are also provided 9 support columns 10. The repeating unit Y includes a total of 12 support columns 10. In addition, the repeating unit Y includes 36 first sub-pixels sp1, 18 second sub-pixels sp2, and 18 third sub-pixels sp3 in total, and in combination with the configuration of the pixel P, it can be seen that the repeating unit Y includes 36 pixels in total in the embodiment of fig. 6. The ratio of the number of the support posts 10 and the pixels P in the repeating unit Y is 1: 3. This embodiment provides a display panel in which the arrangement density of the support columns 10 is large. When the display panel is manufactured, the supporting columns 10 can uniformly and effectively support high-precision mask plates used in different color sub-pixel sp evaporation plating processes, so that the uniformity of the different color sub-pixel sp evaporation plating is ensured, and display color cast caused by poor evaporation plating is avoided.

As shown in fig. 6, between two adjacent support column rows 10H: the two support pillars 10 are respectively adjacent to the second sub-pixel sp2 on the left side in the first direction x and adjacent to the third sub-pixel sp3 on the right side in the first direction x; the other two support pillars 10 are adjacent to the third sub-pixel sp3 on the left side and the second sub-pixel sp2 on the right side in the first direction x, respectively. When a user views the display panel at a left viewing angle in the first direction x, part of the light emitted from the third sub-pixel sp3 located at the right side of the supporting pillar 10 is blocked, and part of the light emitted from the second sub-pixel sp2 located at the right side of the supporting pillar 10 is also blocked. In this embodiment, when viewed from the whole display panel, the shielding condition of the support pillar 10 on the second sub-pixel sp2 and the shielding condition on the third sub-pixel sp3 in different directions are substantially the same, so that the problem of color cast in different viewing angles can be solved, and the display effect can be improved.

As shown in fig. 6, within the repeating unit Y: among the three support column rows 10H arranged in the second direction y, the 1 st support column row 10H and the 3 rd support column row 10H constitute a pair of sides of the first virtual quadrangle 20; in the first direction x, the support columns 10 located at both ends of the three support column rows 10H form the other pair of sides of the first virtual quadrangle 20; on a pair of sides of the first virtual quadrangle 20 extending along the first direction x, three first sub-pixels sp1 are spaced between two adjacent support columns 10; on the other pair of sides of the first virtual quadrangle 20 extending along the second direction y, two adjacent support columns 10 are spaced by one first short side and one first long side, that is, two first virtual trapezoids 30 are spaced between two adjacent support columns 10. The arrangement enables the supporting columns 10 on the side of the first virtual quadrangle 20 to be arranged approximately at equal intervals, and the arrangement uniformity of the supporting columns 10 is improved. Moreover, the support columns 10 in the three support column rows 10H can be all positioned on the parallel edges of the first virtual trapezoid 30 where the support columns are positioned; the supporting columns 10 arranged between the two adjacent supporting column rows 10H are all located on the oblique sides of the first virtual trapezoid 30 where the supporting columns are located, so that the shielding of the second sub-pixels sp2 on the light outgoing in the first direction x and the shielding of the second sub-pixels sp2 on the light outgoing in the second direction y are alternately performed, the shielding of the third sub-pixels sp3 on the light outgoing in the first direction x and the shielding of the third sub-pixels sp3 on the light outgoing in the second direction y are also alternately performed, the uniformity of the light outgoing of the second sub-pixels sp2 and the uniformity of the light outgoing of the third sub-pixels sp3 in different directions can be improved, and the problem of color cast displayed under different viewing angles is improved. In addition, the oblique side where the support columns 10 arranged between the two adjacent support column rows 10H are located and the parallel side where the support columns 10 in the support column rows 10H are located do not belong to the same first virtual trapezoid 30, so that the distances between the support columns 10 located between the two adjacent support column rows 10H and the support columns 10 located in the support column rows 10H are not too small, the arrangement uniformity of the support columns 10 in the second direction y can be improved, and the support part 10 can effectively and uniformly support the mask. In addition, in the evaporation process, when a certain deviation exists between the mask and the alignment of the display panel to be evaporated, more than half of the support columns 10 can still be ensured to support the mask, and the support columns 10 can be ensured to effectively and uniformly support the mask.

In some embodiments, fig. 7 is a schematic view of another display panel according to an embodiment of the present invention, as shown in fig. 7, a first virtual quadrangle (not shown in fig. 7) is divided into four second virtual quadrangles 50, two support columns 10 are disposed on each side of the second virtual quadrangle 50, two adjacent second virtual quadrangles 50 share one side, and two support columns 10 are disposed in each second virtual quadrangle 50; wherein the arrangement of the support columns 10 in the two second virtual quadrangles 50 at the diagonal positions is the same. In addition, the support columns 10 in the three support column rows 10H are all located on the parallel sides of the first virtual trapezoid 30 where they are located; the support columns 10 arranged between two adjacent support column rows 10H are all located on the oblique side of the first virtual trapezoid 30 where they are located. And the oblique side where the support columns 10 between two adjacent support column rows 10H are located and the parallel side where the support columns 10 in the support column rows 10H are located do not belong to the same first virtual trapezoid 30. In this embodiment, a total of four support columns 10 in two adjacent second virtual quadrangles 50 in the first direction x or the second direction y are arranged in a "T" shape, so that the support columns 10 in the first virtual quadrangle are arranged more uniformly as a whole, the arrangement uniformity of the support columns 10 in the display panel is improved, the support columns 10 are enabled to effectively and uniformly support the mask, the evaporation yield of the sub-pixels is improved, and the display effect is improved.

Fig. 8 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention, as shown in fig. 8, the display panel includes a substrate 60 and a pixel defining layer 70 located on one side of the substrate 60, the pixel defining layer 70 has a plurality of openings K, and each opening K corresponds to one sub-pixel sp; the pixel defining layer 70 is used to space adjacent sub-pixels sp. The subpixel sp includes a first electrode 81, a light emitting layer 82, and a second electrode 83 stacked. The display panel further comprises a driving layer 90, the driving layer 90 is located between the sub-pixel sp and the substrate 60, a pixel circuit 91 is disposed in the driving layer 90, and the pixel circuit 91 is coupled to the sub-pixel sp for driving the sub-pixel sp to emit light. An encapsulation structure 61 is further disposed on a side of the sub-pixel sp away from the substrate 60, and the encapsulation structure 61 is used for isolating water and oxygen to ensure a service life of the sub-pixel sp. Wherein, the supporting column 10 is located on the side of the pixel defining layer 70 far away from the substrate 60, the distance between the supporting column 10 and the opening K closest to the supporting column is d, and d is larger than or equal to 4 μm. When the display panel is manufactured, firstly, a pixel defining layer 70 is manufactured, the pixel defining layer 70 is provided with a plurality of openings K, and the side walls of the openings K are the edges of the pixel defining layer 70; the support posts 10 are then fabricated over the pixel definition layer 70. This embodiment sets up the distance between the opening K of support column 10 apart from pixel definition layer 70 and is not less than 4 μm, guarantees that the distance between support column 10 and the opening K can not the undersize, then when the mask plate has certain deviation with waiting to evaporate by vaporization display panel counterpoint in the coating by vaporization technology, can guarantee that support column 10 still can play the supporting role to the mask plate, guarantees that the whole atress of mask plate is relatively even, ensures the coating by vaporization yield.

Based on the same inventive concept, an embodiment of the present invention further provides a display device, and fig. 9 is a schematic view of the display device provided in the embodiment of the present invention, as shown in fig. 9, the display device includes the display panel 100 provided in any embodiment of the present invention. The structure of the display panel 100 is already described in the above embodiments, and is not described herein again. The display device in the embodiment of the invention can be any equipment with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, a television, an intelligent watch and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel comprising a plurality of repeating units, the repeating units comprising a plurality of sub-pixels and a plurality of support posts; the sub-pixels include a first sub-pixel, a second sub-pixel and a third sub-pixel which are different in color from each other; the first sub-pixel and one second sub-pixel and one third sub-pixel adjacent to the first sub-pixel form a pixel, the second sub-pixel is shared by two adjacent pixels, the third sub-pixel is shared by two adjacent pixels, and the first sub-pixel is not shared by the adjacent pixels;

2. The display panel according to claim 1,

the repeating unit comprises a first virtual quadrangle, one support column is arranged at each of four vertex angles of the first virtual quadrangle, one or two support columns are arranged on the edge of the first virtual quadrangle besides the support columns at the vertex angles, and a plurality of support columns are distributed in the first virtual quadrangle; wherein the contribution of the support column at a vertex position to the repeating unit is one quarter of the support columns, the contribution of the support columns on the sides of the first virtual quadrangle to the repeating unit is one half of the support columns except the support column at a vertex position, and the contribution of each support column inside the first virtual quadrangle to the repeating unit is one support column; the repeating unit comprises 12 supporting columns in total;

the sub-pixels on the sides of the first virtual quadrangle contribute one-half of the sub-pixels to the repeating unit, and the sub-pixels inside the first virtual quadrangle contribute one of the sub-pixels to the repeating unit; wherein the repeating unit comprises 36 pixels in total.

3. The display panel according to claim 1,

the two second sub-pixels and the two third sub-pixels form a first virtual trapezoid, the center of the second sub-pixel and the center of the third sub-pixel are respectively located at the vertex of the first virtual trapezoid, and the colors of the sub-pixels located at the diagonal positions of the first virtual trapezoid are the same; one first sub-pixel is arranged inside the first virtual trapezoid;

one of the first sub-pixels and three other of the first sub-pixels located inside the first virtual trapezoid constitute a second virtual trapezoid, the center of the first sub-pixel being located at the vertex of the second virtual trapezoid; one of the second sub-pixels or one of the third sub-pixels is disposed inside the second virtual trapezoid.

4. The display panel according to claim 3,

the first virtual trapezoid comprises two parallel sides and two oblique sides; wherein,

and part of the supporting columns are positioned on the parallel edges, and the rest of the supporting columns are positioned on the oblique edges.

5. The display panel according to claim 4,

the minimum distance between the support pillar and the second sub-pixel closest to the support pillar is d1, the minimum distance between the support pillar and the third sub-pixel closest to the support pillar is d2, and d1 is d 2.

6. The display panel according to claim 4,

the repeating unit includes three rows of support posts arranged in a second direction extending in a first direction, the second direction intersecting the first direction; the support columns in the three support column rows are all positioned on the parallel edges of the first virtual trapezoid where the support columns are positioned;

the supporting columns arranged between two adjacent supporting column rows are all positioned on the inclined edge of the first virtual trapezoid where the supporting columns are positioned.

7. The display panel according to claim 6,

the oblique side where the support column is located between two adjacent support column rows and the parallel side where the support column is located in the support column row do not belong to the same first virtual trapezoid.

8. The display panel according to claim 6,

the parallel sides comprise a first short side and a first long side;

the supporting columns in the same supporting column row are all positioned on the first short side or the first long side;

two adjacent support column rows: the support posts in one of the support post rows are located on the first short side and the support posts in the other support post row are located on the first long side.

9. The display panel according to claim 6,

the number of the support columns in the three support column rows is equal, and the number of the support columns in the two adjacent support column rows is a fixed value.

10. The display panel according to claim 9,

the support column row comprises four support columns; three support columns are arranged between two adjacent support column rows, and the three support columns are positioned in the same row in the first direction;

the support column between the 1 st and 2 nd support column rows that is adjacent to the second subpixel on the left side in the first direction and adjacent to the third subpixel on the right side in the first direction;

the support column between the 2 nd and 3 rd support column rows is adjacent to the third sub-pixel on the left side in the first direction and adjacent to the second sub-pixel on the right side in the first direction.

11. The display panel according to claim 10,

the repeating unit comprises a first virtual quadrangle, and in the three support column rows arranged in the second direction, the 1 st support column row and the 3 rd support column row form a pair of sides of the first virtual quadrangle; in the first direction, the support columns at two ends of the three support column rows form the other pair of sides of the first virtual quadrangle;

on one pair of sides of the first virtual quadrangle, two first sub-pixels are arranged between two adjacent support columns at intervals;

on the other pair of edges of the first virtual quadrangle, one first short edge and one first long edge are arranged between two adjacent support columns at intervals.

12. The display panel according to claim 9,

the support column row comprises three support columns; four support columns are arranged between two adjacent support column rows;

between two adjacent rows of support columns: the two support columns are respectively adjacent to the second sub-pixel on the left side in the first direction and adjacent to the third sub-pixel on the right side in the first direction; the other two support columns are respectively adjacent to the third sub-pixel on the left side in the first direction and adjacent to the second sub-pixel on the right side in the first direction.

13. The display panel according to claim 12,

on one pair of sides of the first virtual quadrangle, three first sub-pixels are arranged between two adjacent support columns at intervals;

14. The display panel according to claim 13,

the first virtual quadrangle is divided into four second virtual quadrangles, each edge of each second virtual quadrangle is provided with two supporting columns, two adjacent second virtual quadrangles share one edge, and two supporting columns are arranged in each second virtual quadrangle; wherein,

the arrangement modes of the supporting columns in the two second virtual quadrangles at the diagonal positions are the same.

15. The display panel according to claim 1,

the display panel comprises a substrate and a pixel defining layer positioned on one side of the substrate, wherein the pixel defining layer is provided with a plurality of openings, and one opening corresponds to one sub-pixel;

the supporting column is positioned on one side of the pixel defining layer far away from the substrate, the distance between the supporting column and the opening closest to the supporting column is d, and d is larger than or equal to 4 mu m.

16. A display device characterized by comprising the display panel according to any one of claims 1 to 15.