Display panel and display device

Abstract

The utility model discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises a substrate, a pixel definition layer located on the substrate and a plurality of pixel units, sub-pixels of at least two colors in the plurality of pixel units comprise a plurality of sub-pixel groups, each sub-pixel group comprises at least two adjacent target sub-pixels, the colors of the at least two target sub-pixels are the same, and the colors of the sub-pixels are different. The electroluminescent layers are arranged on the substrate and are of an integrated structure, so that the electroluminescent layers of at least two target sub-pixels can be formed through opening evaporation of a fine metal mask, the distance between the electroluminescent layers of the at least two target sub-pixels can be reduced, and the effect of increasing the aperture ratio can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field, especially relate to a display panel and display device. BACKGROUND

[0002] The display panel is a kind of device that can realize display function.

[0003] A display panel includes a substrate and a plurality of sub-pixels on the substrate, the sub-pixel includes an electroluminescent layer, the electroluminescent layer is formed by evaporation process, but, the fine metal mask (Fine Metal Mask, FMM) used in evaporation process is limited by process reason, resulting in the spacing between the electroluminescent layers formed by evaporation process is larger, in turn, resulting in the aperture ratio of display panel is smaller. SUMMARY

[0004] The utility model embodiment provides a kind of display panel and display device.The technical solution is as follows:

[0005] According to an aspect of the utility model, a display panel is provided, the display panel includes:

[0006] A substrate;

[0007] A pixel definition layer is located on the substrate and includes a plurality of pixel definition openings;

[0008] A plurality of pixel units are arranged in rows and columns on the substrate, two adjacent pixel units in a column of the pixel units are staggered, one pixel unit includes four sub-pixels, the four sub-pixels are arranged at the four vertices of a virtual convex quadrilateral, and there is an included angle between one side of the virtual convex quadrilateral and the arrangement direction of a column of the pixel units, which is greater than 0 degrees and less than 180 degrees.

[0009] The four sub-pixels include two first color sub-pixels, one second color sub-pixel and one third color sub-pixel, and the sub-pixel includes an electroluminescent layer.

[0010] The plurality of pixel definition openings correspond to a plurality of sub-pixels in the plurality of pixel units, and the electroluminescent layer in the sub-pixel is located on the corresponding pixel definition opening.

[0011] The sub-pixels of at least two colors in the plurality of pixel units include a plurality of sub-pixel groups, the sub-pixel group includes at least two target sub-pixels adjacent and of the same color, and the electroluminescent layer of the at least two target sub-pixels is an integral structure.

[0012] Optionally, the at least one color of sub-pixel further comprises a plurality of independent sub-pixels, and the electroluminescent layer of the independent sub-pixel has a gap with the electroluminescent layer of an adjacent sub-pixel of the same color.

[0013] Optionally, the first color of sub-pixel is a green sub-pixel, and the plurality of green sub-pixels comprises a plurality of green sub-pixel groups and a plurality of green independent sub-pixels.

[0014] The green sub-pixel group comprises at least two adjacent green target sub-pixels, and the electroluminescent layer of the at least two green target sub-pixels is in an integrated structure.

[0015] The electroluminescent layer of the green independent sub-pixel has a gap with the electroluminescent layer of an adjacent green sub-pixel.

[0016] Optionally, the second color of sub-pixel is a blue sub-pixel, and the plurality of blue sub-pixels comprises a plurality of blue sub-pixel groups, and the blue sub-pixel group comprises at least two adjacent blue target sub-pixels, and the electroluminescent layer of the at least two blue target sub-pixels is in an integrated structure.

[0017] The third color of sub-pixel is a red sub-pixel, and the plurality of red sub-pixels comprises a plurality of red independent sub-pixels, and the electroluminescent layer of the red independent sub-pixel has a gap with the electroluminescent layer of an adjacent red sub-pixel.

[0018] Optionally, the plurality of sub-pixels in the plurality of pixel units are arranged as a plurality of sub-pixel rows along a first direction on the substrate, and an included angle between a row direction of the sub-pixel row and a column direction of a column of the pixel units is greater than zero and less than 90 degrees, and the first direction is perpendicular to the row direction.

[0019] The plurality of sub-pixel rows comprise first sub-pixel rows and second sub-pixel rows arranged alternately along the first direction, the first sub-pixel row comprises green independent sub-pixels and red independent sub-pixels arranged alternately along the row direction, and the second sub-pixel row comprises green sub-pixel groups and blue sub-pixel groups arranged alternately along the row direction.

[0020] Optionally, an arrangement direction of the at least two blue target sub-pixels in the blue sub-pixel group is parallel to the row direction.

[0021] An arrangement direction of the at least two green target sub-pixels in the green sub-pixel group has an included angle greater than zero and less than or equal to 90 degrees with the row direction.

[0022] Optionally, the display panel comprises a plurality of pixel pitch regions arranged in rows and columns and in a rectangular shape, one side of the pixel pitch regions is parallel to the row direction of the plurality of pixel pitch regions, and in the row direction and the column direction of the plurality of pixel pitch regions, two adjacent pixel pitch regions are connected;

[0023] In the plurality of electroluminescent layers of the plurality of pixel units, the green independent sub-pixels and the green sub-pixel groups are located at the center of the pixel pitch region, the blue sub-pixel group is located at the center of the pixel pitch region, and the red independent sub-pixel is located at the vertex of the pixel pitch region.

[0024] Optionally, the third color sub-pixel is a red sub-pixel, and in the plurality of red sub-pixels in the plurality of pixel units, a plurality of red sub-pixel groups are included, the red sub-pixel group includes at least two adjacent red target sub-pixels, and the electroluminescent layers of the at least two red target sub-pixels are in an integrated structure.

[0025] The second color sub-pixel is a blue sub-pixel, and in the plurality of blue sub-pixels in the plurality of pixel units, a plurality of blue independent sub-pixels are included, and the electroluminescent layer of the blue independent sub-pixel has a gap with the electroluminescent layer of an adjacent blue sub-pixel.

[0026] Optionally, the plurality of sub-pixels in the plurality of pixel units are arranged in a plurality of sub-pixel rows in a first direction on the substrate, an included angle between the row direction of the sub-pixel row and the column direction of the column of pixel units is greater than zero degrees and less than 90 degrees, and the first direction is perpendicular to the row direction.

[0027] The plurality of sub-pixel rows include a third sub-pixel row and a fourth sub-pixel row alternately arranged in the first direction, the third sub-pixel row includes green independent sub-pixels and blue independent sub-pixels alternately arranged in the row direction, and the fourth sub-pixel row includes green sub-pixel groups and red sub-pixel groups alternately arranged in the row direction.

[0028] Optionally, the arrangement direction of the at least two blue target sub-pixels in the integrated structure in the blue sub-pixel group is parallel to the row direction.

[0029] An included angle between the arrangement direction of the at least two red target sub-pixels in the red sub-pixel group and the row direction is greater than zero degrees and less than or equal to 90 degrees.

[0030] Optionally, the display panel comprises a plurality of pixel pitch regions arranged in rows and columns and in a rectangular shape, one side of the pixel pitch regions is parallel to the row direction of the plurality of pixel pitch regions, and in the row direction and the column direction of the plurality of pixel pitch regions, two adjacent pixel pitch regions are connected;

[0031] The multiple electroluminescent layers of the multiple pixel units are located at the vertex of the pixel pitch region, and the blue independent sub-pixel is located at the center of the pixel pitch region.

[0032] Optionally, the first color sub-pixel is a green sub-pixel, and the multiple green sub-pixels in the multiple pixel units include multiple green sub-pixel groups, each of the green sub-pixel groups includes at least two adjacent green target sub-pixels, and the electroluminescent layers of the at least two green target sub-pixels are integrated structures.

[0033] The second color sub-pixel is a blue sub-pixel, and the multiple blue sub-pixels in the multiple pixel units include multiple blue sub-pixel groups, each of the blue sub-pixel groups includes at least two adjacent blue target sub-pixels, and the electroluminescent layers of the at least two blue target sub-pixels are integrated structures.

[0034] The third color sub-pixel is a red sub-pixel, and the multiple red sub-pixels in the multiple pixel units include multiple red sub-pixel groups, each of the red sub-pixel groups includes at least two adjacent red target sub-pixels, and the electroluminescent layers of the at least two red target sub-pixels are integrated structures.

[0035] Optionally, the multiple sub-pixels in the multiple pixel units are arranged as multiple sub-pixel rows in a first direction on the substrate, and an included angle between a row direction of the sub-pixel rows and a column direction of a column of the pixel units is greater than zero and less than 90 degrees, and the first direction is perpendicular to the row direction.

[0036] The multiple sub-pixel rows include the fifth sub-pixel row and the sixth sub-pixel row arranged alternately in the first direction, the fifth sub-pixel row includes the green sub-pixel group and the red sub-pixel group arranged alternately in the row direction, and the sixth sub-pixel row includes the blue sub-pixel group and the green sub-pixel group arranged alternately in the row direction.

[0037] Optionally, the display panel includes multiple pixel pitch regions arranged in rows and columns and in a rectangular shape, one side of the pixel pitch regions is parallel to a row direction of the multiple pixel pitch regions, and in the row direction and the column direction of the multiple pixel pitch regions, two adjacent pixel pitch regions are connected.

[0038] The multiple electroluminescent layers of the multiple pixel units are located at the vertex of the pixel pitch region, and the blue independent sub-pixel is located at the center of the pixel pitch region.

[0039] According to another aspect of the present application, a display device is provided, which comprises a housing and any of the display panels described above. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0041] Figure 1 is a structural schematic diagram of a display panel in the related art;

[0042] Figure 2 is a structural schematic diagram of a display panel provided by the embodiment of the present application;

[0043] Figure 3 is Figure 2 is a sectional structure schematic diagram of the display panel shown in FIG. 1;

[0044] Figure 4 is a structural schematic diagram of another display panel provided by the embodiment of the present application;

[0045] Figure 5 is Figure 4 is a layout schematic diagram of FMM openings corresponding to a green sub-pixel in the display panel shown in FIG. 1;

[0046] Figure 6 is Figure 4 is a layout schematic diagram of FMM openings corresponding to a red sub-pixel in the display panel shown in FIG. 1;

[0047] Figure 7 is Figure 4 is a layout schematic diagram of FMM openings corresponding to a blue sub-pixel in the display panel shown in FIG. 1;

[0048] Figure 8 is a comparison schematic diagram of a display panel provided by the embodiment of the present application and a display panel in the related art;

[0049] Figure 9 is a structural schematic diagram of another display panel provided by the embodiment of the present application;

[0050] Figure 10 is Figure 9 is a layout schematic diagram of FMM openings corresponding to a green sub-pixel in the display panel shown in FIG. 1;

[0051] Figure 11 is Figure 9A schematic view of arrangement of FMM openings corresponding to a red sub-pixel in the display panel shown;

[0052] Figure 12 A schematic view of arrangement of FMM openings corresponding to a green sub-pixel in the display panel shown; Figure 9 A schematic view of arrangement of FMM openings corresponding to a blue sub-pixel in the display panel shown;

[0053] Figure 13 A schematic view of structure of another display panel according to an embodiment of the present application;

[0054] Figure 14 A schematic view of arrangement of FMM openings corresponding to a green sub-pixel in the display panel shown; Figure 13 A schematic view of arrangement of FMM openings corresponding to a green sub-pixel in the display panel shown;

[0055] Figure 15 A schematic view of arrangement of FMM openings corresponding to a green sub-pixel in the display panel shown; Figure 13 A schematic view of arrangement of FMM openings corresponding to a green sub-pixel in the display panel shown;

[0056] Figure 16 A schematic view of arrangement of FMM openings corresponding to a green sub-pixel in the display panel shown; Figure 13 A schematic view of arrangement of FMM openings corresponding to a green sub-pixel in the display panel shown.

[0057] The above drawings have shown the embodiments of the present application, and the following will have more detailed description. These drawings and textual description are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to the skilled in the art by referring to the specific embodiments. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will make further detailed description on the embodiments of the present application in combination with the drawings.

[0059] Figure 1 A schematic view of structure of a display panel in the related art, which comprises a substrate 01, a pixel definition layer (not shown in the figure) and a plurality of sub-pixels 02 on the substrate 01, each of the sub-pixels 02 comprises an electroluminescent layer 021 (shown in the figure), the electroluminescent layer 021 can be a structure defined by a pixel definition opening, the larger the pixel definition opening, the larger the electroluminescent layer 021), according to the different colors of the sub-pixels, the display panel comprises a red electroluminescent layer 1r, a green electroluminescent layer 1g and a blue electroluminescent layer 1b, the wire frame around each of the electroluminescent layers 021 is a fine metal mask opening 03 (shown in the figure); Figure 1 Figure 1 Figure 1 ​​The wireframe shown can be considered as the orthographic projection of the FMM opening 03 onto the substrate 01. The rectangular wireframe arranged in a 4x4 pattern is the pixel pitch area pp. The length of any one of the two adjacent sides of the pixel pitch area pp is equal to the distance between the same point (such as the center point) of two adjacent sub-pixels in the length direction of this any one side.

[0060] The above Figure 1 Electroluminescent layers of the same color are deposited using the same FMM (Follicular Unit Transformer), for example. Figure 1 All the green electroluminescent layers g in the image are deposited from a single FMM (Foil Mirror). Each FMM opening 03 corresponds to the deposition of an electroluminescent layer 021. An electroluminescent layer 021 is the electroluminescent layer in a sub-pixel. This electroluminescent layer 021 has a structure comprising multiple stacked film layers, exemplarily including a hole injection layer (HIL), a hole transport layer (HTL), an emissive layer (EML), an electron transport layer (ETL), and an electron injection layer (EIL). Specifically, Figure 1 The diagram shows the FMM openings corresponding to the sub-pixels of the three colors in the display panel. The multiple FMM openings 03 include FMM opening 03r corresponding to the red sub-pixel (the red sub-pixel includes a sub-pixel with a red electroluminescent layer), FMM opening 03g corresponding to the green sub-pixel (the green sub-pixel includes a sub-pixel with a green electroluminescent layer), and FMM opening 03b corresponding to the blue sub-pixel (the blue sub-pixel includes a sub-pixel with a blue electroluminescent layer). The FMM opening 03r corresponding to the red sub-pixel is used to form a red electroluminescent layer, the FMM opening 03g corresponding to the green sub-pixel is used to form a green electroluminescent layer, and the FMM opening 03b corresponding to the blue sub-pixel is used to form a blue electroluminescent layer.

[0061] The applicant discovered that, all other things being equal, the smaller the distance between the apertures of the FMM corresponding to the electroluminescent layers of subpixels of the same color (this distance is the size of the ribs between the FMM apertures, also known as the bridging distance), the larger the pixel-defined aperture will be, and the higher the pixel aperture ratio will be. However, if the bridging distance is too small, it increases the difficulty of manufacturing the FMM, making it prone to uncontrollable deformation during the meshing process, and in severe cases, even causing local breakage of the FMM, rendering that FMM unusable and resulting in significant losses. Therefore, the size of the pixel-defined aperture is limited to restrict the minimum bridging distance. Thus, when products require high resolution and long lifespan, it is difficult to improve upon the current diamond pixel arrangement.

[0062] For example, such as Figure 1 As shown, the minimum distance between FMM openings is difficult to reduce under this constraint. For example, under this constraint, such as... Figure 1 In this design, the spacing i1 between two adjacent green electroluminescent layers g corresponding to FMM openings 03g in the vertical direction is ≥15 micrometers (μm); the spacing i2 between two adjacent green electroluminescent layers 1g corresponding to FMM openings 03g in the horizontal direction is ≥15 μm; and the spacing i3 between two adjacent green electroluminescent layers 1g corresponding to FMM openings 03g in the diagonal direction (which can be at a 45-degree angle to the vertical direction) is ≥35 μm. Under these parameter constraints, the aperture ratio of the display panel is limited to approximately 30.99%.

[0063] In this embodiment of the present invention, the aperture ratio can refer to the ratio of the actual light-emitting area of ​​the sub-pixel (the actual light-emitting area can be the contact area between the electroluminescent layer and the anode) to the area of ​​the pixel pitch region.

[0064] The display panel and display device provided in this embodiment of the present invention can solve some of the problems existing in the above-mentioned related technologies.

[0065] Figure 2 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention. Figure 3 yes Figure 2 The diagram shows a cross-sectional view of the display panel (section AA). Please refer to it. Figure 2 as well as Figure 3 The display panel includes: a substrate 21; and a pixel definition layer 22 located on the substrate 21, the pixel definition layer 22 including a plurality of pixel definition openings k1.

[0066] Multiple pixel units 23 are arranged in rows and columns on the substrate 21 (the row direction of the multiple pixel units 23 is f2, the column direction is f1, and the arrangement is multiple pixel unit rows H1 and multiple pixel unit columns L1). Adjacent pixel units 23 in a column of pixel units 23 are staggered. Each pixel unit 23 includes four sub-pixels 231, which are respectively arranged at the four vertices of a virtual convex quadrilateral s1. There is an angle greater than 0 degrees and less than 180 degrees between one side of the virtual convex quadrilateral s1 and the direction of the arrangement of a column of pixel units (that is, the column direction f1). Figure 2 What is shown is virtual Figure 4 The case where the polygon s1 is a rhombus and the angle between one side of the virtual convex quadrilateral s1 and the column direction f1 is 45 degrees is not limited to this. For example, the virtual convex quadrilateral s1 can also be a square or a rectangle, and the angle between one side of the virtual convex quadrilateral s1 and the column direction f1 can also be 40 degrees or 50 degrees.

[0067] The four sub-pixels 231 include two first-color sub-pixels c1, one second-color sub-pixel c2, and one third-color sub-pixel c3. Each sub-pixel includes an electroluminescent layer 2311.

[0068] Multiple pixel definition openings k1 correspond to multiple sub-pixels in multiple pixel units, and the electroluminescent layer 2311 in the sub-pixel is located on the corresponding pixel definition opening k1.

[0069] The sub-pixels of at least two colors in the multiple pixel units 23 include multiple sub-pixel groups 23a, and the sub-pixel groups 23a include at least two adjacent target sub-pixels 231a, the at least two target sub-pixels 231a have the same color, and the electroluminescent layers 2311 of the at least two target sub-pixels 231a are an integral structure. Figure 2 The illustration shows a case where the first color sub-pixel c1 and the third color sub-pixel c3 include sub-pixel group 23a, and sub-pixel group 23a includes two sub-pixels 231. However, it is also possible that the first color sub-pixel c1 and the second color sub-pixel c2 include sub-pixel group 23a, or the third color sub-pixel c3 and the second color sub-pixel c2 include sub-pixel group 23a, or the first color sub-pixel c1, the third color sub-pixel c3, and the second color sub-pixel c2 all include sub-pixel group 23a. The number of sub-pixels included in sub-pixel group 23a can also be more, such as 3, 4, 5, or 6, etc. This embodiment of the utility model does not limit this.

[0070] Figure 2 The box shown representing subpixel 231 can be Figure 3A region defined by a pixel definition opening k1 in a pixel definition layer (PDL) 22, as shown in Figure 3 As shown, the electroluminescent layers 2311 of the two first color sub-pixels c1 are in an integrated structure, and the two electroluminescent layers 2311 of the integrated structure are deposited based on one FMM opening k2, so that the electroluminescent layers in the two sub-pixels can be deposited by one FMM opening k2.

[0071] As shown in Figure 3 It can be seen that, in the embodiments of the present application, the electroluminescent layers 2311 of at least two target sub-pixels 231a in one sub-pixel group 23a are in an integrated structure, which means that the at least two target sub-pixels 231a share one larger electroluminescent layer, the at least two target sub-pixels 231a include at least two different regions of the larger electroluminescent material layer 23e, the regions can be divided by a pixel definition opening k1 in a pixel definition layer (for example, the part of the electroluminescent material layer 23e located in the pixel definition opening k1 is the electroluminescent layer 2311 of the sub-pixel), and the two electroluminescent layers 2311 of the integrated structure can include a connecting part 2312, which is located on the pixel definition layer and does not belong to the adjacent two sub-pixels 231. The electrode included in one sub-pixel 231 can be located at the pixel definition opening k1 and drive the electroluminescent layer in the corresponding region of the sub-pixel 231 to realize the light-emitting display function.

[0072] In summary, in the display panel provided by the embodiments of the present application, the display panel includes a substrate, a pixel definition layer located on the substrate, and a plurality of pixel units, the sub-pixels of at least two colors in the plurality of pixel units include a plurality of sub-pixel groups, the sub-pixel group includes at least two target sub-pixels adjacent to each other, the colors of the at least two target sub-pixels are the same, and the electroluminescent layers are in an integrated structure, so that the electroluminescent layers of the at least two target sub-pixels can be deposited by one opening of a fine metal mask, so that the spacing between the electroluminescent layers of the at least two target sub-pixels can be reduced, and the effect of increasing the aperture ratio can be achieved.

[0073] Please refer to Figure 2 and Figure 3, the sub-pixels of at least one color in the sub-pixel group further include a plurality of independent sub-pixels 231b, and the electroluminescent layer 2311 of the independent sub-pixel 231b has a gap between the electroluminescent layer of the adjacent sub-pixel of the same color. That is, an opening in the FMM is only used for evaporating the electroluminescent layer 2311 of the independent sub-pixel 231b, and is not used for evaporating the electroluminescent layer of other sub-pixels. In this structure, in the display panel, a plurality of sub-pixels of one color include two structures of the electroluminescent layer, one is the electroluminescent layer shared by two sub-pixels, and the other is the electroluminescent layer exclusively used by one sub-pixel.

[0074] In the display panel provided by the embodiment of the utility model, the pixel definition layer is formed by a photoetching process, and the precision of the photoetching process is greater than the precision of the evaporation forming electroluminescent layer by FMM, and then the distance between the openings k1 of the pixel definition layer (the distance can be referred to as PDL Gap) can reach the minimum distance that can be reached by the photoetching process, and the minimum distance is less than the limit that can be reached by the evaporation process using FMM, so that the distance between the sub-pixels can be reduced, and the effect of increasing the aperture ratio can be realized.

[0075] In addition, the display panel provided by the embodiment of the present disclosure can be an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display panel, and an example can be an active matrix organic light-emitting diode (Active-Matrix Organic Light-Emitting Diode, AMOLED) display panel. Such an AMOLED display panel can be flexible to become a flexible display panel.

[0076] Figure 4 is a structural schematic view of another display panel provided by the embodiment of the utility model, wherein the first color sub-pixel is a green sub-pixel g, and in the plurality of green sub-pixels g in the plurality of pixel units, a plurality of green sub-pixel groups g1 and a plurality of green independent sub-pixels g2 are included. Figure 4 , the sub-pixels of the same filling pattern are sub-pixels of the same color.

[0077] The green sub-pixel group g1 includes at least two adjacent green target sub-pixels g11, and the electroluminescent layer of the at least two green target sub-pixels g12 is an integral structure (the structure of the integral structure of the electroluminescent layer can be referred to as the above Figure 3 The electroluminescent layer of the green independent sub-pixel g2 has a gap between the electroluminescent layer of the adjacent green sub-pixel.

[0078] Figure 4 The pixel arrangement mode in the display panel is shown, wherein the line frame outside each sub-pixel is the FMM opening k2 corresponding to the sub-pixel (the line frame k2 can be considered as the position where the orthographic projection of the FMM opening on the substrate 21 is located, the shape of the FMM opening is the same as the shape of the electroluminescent material layer formed by evaporation based on the FMM opening, and the electroluminescent material layer can be divided into an electroluminescent layer in one or more sub-pixels by a pixel definition opening). The types of green sub-pixels g include two types, one green sub-pixel is a green independent sub-pixel g2, the FMM opening k2 corresponding to the green independent sub-pixel g2 has only one green sub-pixel g2, and the electroluminescent layer of the green independent sub-pixel g2 is not connected with the electroluminescent layers of other sub-pixels, that is, the green independent sub-pixel g2 exclusively occupies an electroluminescent layer; the other green sub-pixel g is a green target sub-pixel g11, and at least two green sub-pixels of this type belong to a green sub-pixel group g1. The electroluminescent layers of at least two green sub-pixels in each green sub-pixel group g1 are integrated structures, and each green sub-pixel group g1 corresponds to an FMM opening k2.

[0079] In the embodiment of the utility model, one sub-pixel corresponds to one pixel definition opening in the pixel definition layer, the pixel definition layer is provided with an electroluminescent material layer, and the overlapping part of the electroluminescent material layer and the opening of the pixel definition layer is the electroluminescent layer in the sub-pixel corresponding to the pixel definition opening.

[0080] The shape of the pixel definition opening corresponding to the green independent sub-pixel in the green sub-pixel group (the shape is similar to the shape of the electroluminescent layer of the green independent sub-pixel) can be the same as or different from the shape of the pixel definition opening of the green independent sub-pixel. Similarly, the area of the pixel definition opening corresponding to the green independent sub-pixel in the green sub-pixel group (the area is positively correlated with the area of the electroluminescent layer of the green independent sub-pixel) can be the same as or different from the area of the pixel definition opening of the green independent sub-pixel, and the embodiment of the utility model does not limit this. In addition, Figure 4 The frame representing the sub-pixel shown in the figure can be the edge of the pixel definition opening.

[0081] The second color sub-pixel is a blue sub-pixel b, and the plurality of blue sub-pixels b in the plurality of pixel units include a plurality of blue sub-pixel groups b1, the blue sub-pixel group b1 includes at least two adjacent blue target sub-pixels b11, and the electroluminescent layers of the at least two blue target sub-pixels b11 are integrated structures. The blue sub-pixel b in the display panel can only include one type of blue sub-pixel, that is, a blue target sub-pixel b11, which is similar to the green target sub-pixel g11. The at least two blue target sub-pixels b11 in one blue sub-pixel group b1 correspond to one FMM opening k2.

[0082] The third color sub-pixel is a red sub-pixel r, and the plurality of red sub-pixels r in the plurality of pixel units include a plurality of red independent sub-pixels r2, and the electroluminescent layer of the red independent sub-pixel r2 has a gap with the electroluminescent layer of an adjacent red sub-pixel. The red sub-pixel r in the display panel can only include one type of red sub-pixel, which is a red independent sub-pixel r2, similar to the green independent sub-pixel g2, there is only one red sub-pixel r2 in the FMM opening k2 corresponding to the red independent sub-pixel r2, and the electroluminescent layer of the red independent sub-pixel r2 is not connected to the electroluminescent layer of other sub-pixels, that is, the red independent sub-pixel r2 exclusively occupies one electroluminescent layer.

[0083] The plurality of sub-pixels in the plurality of pixel units 23 are arranged as a plurality of sub-pixel rows along a first direction f3 on the substrate, and a row direction f4 of the sub-pixel row and a column direction f1 of a column of pixel units 23 (the column direction f1 can be a vertical direction in the display panel) Figure 4 The included angle between the column direction f1 of the column of pixel units 23 and the row direction f4 of the sub-pixel row is greater than zero degrees and less than 90 degrees. Figure 4 It is shown that the included angle is 45 degrees, but this is not limited, and the included angle can also be 40 degrees, 50 degrees, etc.), and the first direction f3 is perpendicular to the row direction f4 of the sub-pixel row.

[0084] The plurality of sub-pixel rows include first sub-pixel rows n1 and second sub-pixel rows n2 arranged alternately along the first direction f3, the first sub-pixel row n1 includes green independent sub-pixels g2 and red independent sub-pixels r2 arranged alternately along the row direction f4 of the sub-pixel row, and the second sub-pixel row n2 includes green sub-pixel groups g1 and blue sub-pixel groups b1 arranged alternately along the row direction f4 of the sub-pixel row.

[0085] Thus, an arrangement of sub-pixels in a display panel including three color sub-pixels is provided, in which the sub-pixel row adopts a diagonal arrangement, which can reduce the sawtooth effect of the picture, and the blue sub-pixel and part of the green sub-pixel adopt a structure in which a plurality of sub-pixels share one electroluminescent layer, so that the sub-pixels can be arranged more closely, and the effect of improving the aperture ratio can be achieved.

[0086] In an exemplary embodiment, the arrangement direction of the at least two electroluminescent layers b11 of the integral structure in the blue sub-pixel group b1 is parallel to the row direction f4 of the sub-pixel row.

[0087] The arrangement direction of the at least two green target sub-pixels g11 of the integral structure in the green sub-pixel group g1 has an included angle greater than zero degrees and less than or equal to 90 degrees with the row direction f4 of the sub-pixel row. Figure 4The angle between the arrangement direction of the at least two green target sub-pixels g11 in the green sub-pixel group g1 and the row direction f4 of the sub-pixel row is 90 degrees, but the angle can also be 70 degrees, 80 degrees, etc., and the embodiment of the utility model does not limit this. This arrangement direction makes the sub-pixel occupy a larger area in the panel, so as to improve the aperture ratio of the display panel.

[0088] Optionally, in the plurality of electroluminescent layers of the plurality of pixel units, the green independent sub-pixel g2 and the green sub-pixel group g1 are located at the center of the pixel pitch area pp, the blue sub-pixel group b1 is located at the center of the pixel pitch area pp, and the red independent sub-pixel r2 is located at the vertex of the pixel pitch area pp. Wherein, the center of the pixel pitch area pp of the certain sub-pixel or sub-pixel group involved in the embodiment of the utility model can mean that the area occupied by the sub-pixel or sub-pixel group is located at the center of the pixel pitch area pp, and the area occupied by the sub-pixel or sub-pixel group can be considered as the area occupied by the orthographic projection of the FMM opening k2 corresponding to the sub-pixel or sub-pixel group on the substrate 21, on this basis, the certain sub-pixel or sub-pixel group located at the center of the pixel pitch area pp can be considered as the orthographic projection of the FMM opening k2 corresponding to the sub-pixel or sub-pixel group on the substrate 21 located at the center of the pixel pitch area pp, that is, the electroluminescent material layer formed based on the FMM opening k2 is located at the center of the pixel pitch area pp. Similarly, the certain sub-pixel or sub-pixel group located at the vertex of the pixel pitch area pp can be considered as the orthographic projection of the FMM opening k2 corresponding to the sub-pixel or sub-pixel group on the substrate 21 located at the vertex of the pixel pitch area pp, that is, the electroluminescent material layer formed based on the FMM opening k2 is located at the vertex of the pixel pitch area pp.

[0089] In an exemplary embodiment, Figure 5 is Figure 4 the arrangement diagram of the FMM opening corresponding to a green sub-pixel in the display panel shown, Figure 6 is Figure 4 the arrangement diagram of the FMM opening corresponding to a red sub-pixel in the display panel shown, Figure 7 is Figure 4 the arrangement diagram of the FMM opening corresponding to a blue sub-pixel in the display panel shown, please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 , wherein the display panel comprises a plurality of pixel pitch areas pp arranged in rows and columns and in a rectangular shape, one side of the pixel pitch area pp and the row direction of the plurality of pixel pitch areas (the row direction of the pixel pitch area pp is the direction of the row of the pixel pitch area pp) are perpendicular to each other. Figure 4 , Figure 5 , Figure 6 and Figure 7parallel, and adjacent two pixel pitch areas are connected in the row direction and the column direction of the plurality of pixel pitch areas (the column direction of the pixel pitch area pp is the horizontal direction in the figure) Figure 4 , Figure 5 , Figure 6 and Figure 7 in the vertical direction) are connected. In addition, Figure 5 , Figure 6 and Figure 7 show the FMM opening k2 and the plurality of electroluminescent material layers evaporated based on the FMM opening k2. Among them, the electroluminescent material layer ge2 of the green independent sub-pixel and the electroluminescent material layer ge1 of the green sub-pixel group (different from Figure 4 , Figure 5 The electroluminescent material layer ge2 of the green sub-pixel group shown includes the electroluminescent layers of at least two green target sub-pixels, that is, the electroluminescent material layer ge2 is a larger electroluminescent layer including at least two electroluminescent layers in an integrated structure) are located at the center of the pixel pitch area pp, and the electroluminescent material layer be1 of the blue sub-pixel group (different from Figure 4 , Figure 7 The electroluminescent material layer be1 of the blue sub-pixel group shown includes the electroluminescent layers of at least two blue target sub-pixels, that is, the electroluminescent material layer be1 is a larger electroluminescent layer composed of at least two electroluminescent layers in an integrated structure) is located at the center of the pixel pitch area pp, and the electroluminescent material layer re2 of the red independent sub-pixel is located at the vertex of the pixel pitch area pp.

[0090] Please refer to Figure 8 , Figure 8 is a comparison diagram of a display panel in the related art and a display panel provided by the embodiment of the present application, wherein the display panel 01 is the display panel shown in Figure 1 , and the display panel 20 is the display panel provided by the embodiment of the present application. In the display panel 01, the spacing between the sub-pixels 02 in two directions is m1 and m2 respectively, and m1 and m2 are about 20 microns. In the display panel 20 provided by the embodiment of the present application, the spacing m3 between the two green target sub-pixels g11 in one green sub-pixel group and the spacing m4 between the two blue target sub-pixels b11 in one blue sub-pixel group can be the limit distance of the spacing between the pixel definition openings, which can reach about 11 microns, which is obviously smaller than the spacing of 20 microns in the display panel 11, so that the effect of increasing the overall aperture ratio of the pixel is realized.

[0091] In addition, in the display panel provided by the embodiment of the present application, the electroluminescent layer can have a chamfer structure, and under this structure, the FMM opening k2 corresponding to the electroluminescent layer also has a chamfer structure. For example, Figure 8In the display panel 20 provided by the embodiment of the present application, the chamfer structure can make the edge corners of the two green sub-pixel corresponding FMM openings k2 "shrink" towards the center of the FMM openings k2, so that the spacing m5 between the two FMM openings k2 can be increased, and then the size of the rib in the FMM can be increased to reduce the risk of color mixing and crosstalk, and the chamfer has a smaller influence on the opening rate. In this way, the FMM manufacturing process difficulty can be reduced, the pixel density (Pixels Per Inch, PPI) and the opening rate of the display panel can be improved, and the product life specification and the product competitiveness can be improved.

[0092] Figure 4 In the display panel shown, in every four pixel spacing areas pp, two green independent sub-pixels g2 corresponding FMM openings k2 and two green independent sub-pixels g2 are included, and the arrangement manner of the two green independent sub-pixels g2 is similar to that of the display panel shown in Figure 1 In every four pixel spacing areas pp, one green sub-pixel group corresponding FMM opening k2 and one green sub-pixel group g1 are included, and the green sub-pixel group g1 includes two green target sub-pixels g11, on this basis, the density of the green sub-pixel g is the same as that of the display panel shown in Figure 1 The parameters of the FMM used to manufacture the display panel shown in Figure 4 can meet the requirements of the manufacturing process capability: 1, in the column direction f1 of the pixel unit and the row direction f2 of the pixel unit, the size of the rib of the FMM is greater than or equal to 15 microns; 2, in the row direction f4 of the sub-pixel row and the first direction f3, the size of the rib of the FMM is greater than or equal to 35 microns. On this basis, in the display panel provided by the embodiment of the present application, the FMM opening corresponding to the green sub-pixel meets the feasibility of FMM manufacturing.

[0093] Please refer to Figure 4 , in every four pixel spacing areas pp, one blue sub-pixel group b1 corresponding FMM opening k2 and one blue sub-pixel group are included, and one blue sub-pixel group b1 includes two blue target sub-pixels b11, on this basis, the number of blue sub-pixels in every four pixel spacing areas pp is the same as that of the display panel shown in Figure 1 . Figure 4 In the display panel shown, the spacing between the FMM openings k2 corresponding to the adjacent blue sub-pixel groups b1 is the process minimum distance (for example, the minimum distance is 10 microns), so that the overall opening rate of the pixel can be increased.

[0094] The arrangement of the red sub-pixel is similar to that of the display panel shown in Figure 1 , except that Figure 4The shape of the electroluminescent layer of the illustrated red independent sub-pixel r2 is a rectangle, and the long side of the rectangle is parallel to the row direction f4 of the sub-pixel, so that the red sub-pixel can be increased, and various sub-pixels can be more fully filled in the display panel, so as to improve the overall aperture ratio of the display panel. Of course, the shape of the red sub-pixel can also be correspondingly adjusted based on a preset aperture ratio (the aperture ratio is the ratio of the light-emitting areas of sub-pixels of different colors) in the display panel, and the embodiments of the present application do not limit this.

[0095] It should be noted that the center of the pixel spacing area refers to the center of the pixel spacing area in the orthographic projection of the electroluminescent layer on the substrate, and of course, the center of the pixel spacing area can also coincide with the center of the orthographic projection of the electroluminescent layer on the substrate. Similarly, the vertex of the pixel spacing area refers to the vertex of the pixel spacing area in the orthographic projection of the electroluminescent layer on the substrate, and of course, the vertex of the pixel spacing area can also coincide with the center of the orthographic projection of the electroluminescent layer on the substrate.

[0096] In addition, Figure 4 The structure of the sub-pixel included in the pixel unit 23 is shown, but the sub-pixel included in the pixel unit can also be other structures, as long as two green sub-pixels, one red sub-pixel, and one blue sub-pixel are included in one pixel unit.

[0097] In addition, Figure 4 In the pixel layout shown, the grid-shaped pixel spacing area is only used to show the relative positions of sub-pixels of different colors, and the green sub-pixel, the red sub-pixel, and the blue sub-pixel can be moved as a whole relative to the center of a certain pixel spacing area to change the positions of these sub-pixels in the sub-pixel spacing area, or the positions of the green sub-pixel, the red sub-pixel, and the blue sub-pixel can also be interchanged. For example, the position of the green sub-pixel group can be interchanged with the position of the green independent sub-pixel, and the position of the green sub-pixel group can also be interchanged with the position of the red independent sub-pixel, and the embodiments of the present application do not limit this.

[0098] Figure 9 is a structural schematic diagram of another display panel provided by the embodiments of the present application, wherein the first color sub-pixel is a green sub-pixel g, and among the plurality of green sub-pixels g in the plurality of pixel units, a plurality of green sub-pixel groups g1 and a plurality of green independent sub-pixels g2 are included. Figure 9 The green sub-pixel group g1 includes at least two adjacent green target sub-pixels g11, and the electroluminescent layers of the at least two green target sub-pixels g11 are of an integral structure. The electroluminescent layer of the green independent sub-pixel g2 has a gap with the electroluminescent layer of the adjacent green sub-pixel.Figure 9 The structure of the green sub-pixel is similar to that of the red sub-pixel and the blue sub-pixel. Figure 4 Similarly, the green sub-pixel includes both the green target sub-pixel and the green independent sub-pixel.

[0099] The third color sub-pixel is a red sub-pixel r, and the plurality of red sub-pixels r in the plurality of pixel units 23 include a plurality of red sub-pixel groups r1, the red sub-pixel group r1 includes at least two adjacent red target sub-pixels r11, and the electroluminescent layers of the at least two red target sub-pixels r11 are in an integrated structure.

[0100] The second color sub-pixel is a blue sub-pixel b, and the plurality of blue sub-pixels b in the plurality of pixel units 231 include a plurality of blue independent sub-pixels b2, and the electroluminescent layer of the blue independent sub-pixel b2 has a gap with the electroluminescent layer of the adjacent blue sub-pixel.

[0101] The display panel shown in FIG. 1 is different from the display panel shown in FIG. 2 in that Figure 4 The display panel shown in FIG. 1 is different from the display panel shown in FIG. 2 in that Figure 9 In the display panel shown in FIG. 1, the red sub-pixel and the green sub-pixel include sub-pixel groups, and the blue sub-pixel does not include a sub-pixel group. Of course, based on similar reasons, the red sub-pixel group r1 and the green sub-pixel group g1 can also achieve the effect of reducing the spacing between the electroluminescent layers of at least two target sub-pixels, and further can achieve the effect of increasing the aperture ratio.

[0102] Optionally, the plurality of sub-pixels 231 in the plurality of pixel units 23 are arranged as a plurality of sub-pixel rows along a first direction f3 on the substrate, and the row direction f4 of the sub-pixel row has an included angle greater than zero degrees and less than 90 degrees with the column direction f1 of the column of pixel units 23 (the column direction f1 can be the vertical direction in FIG. 3), and the first direction f3 is perpendicular to the row direction f4 of the sub-pixel row. Figure 9 The display panel shown in FIG. 3 is different from the display panel shown in FIG. 2 in that Figure 9 The display panel shown in FIG. 3 is different from the display panel shown in FIG. 2 in that

[0103] The plurality of sub-pixel rows include a third sub-pixel row n3 and a fourth sub-pixel row n4 arranged alternately along the first direction f3, the third sub-pixel row n3 includes green independent sub-pixels g2 and blue independent sub-pixels b1 arranged alternately along the row direction f4 of the sub-pixel row, and the fourth sub-pixel row n4 includes green sub-pixel groups g1 and red sub-pixel groups r1 arranged alternately along the row direction f4 of the sub-pixel row. Figure 9Another specific pixel arrangement structure is provided, in which the sub-pixel rows adopt a diagonal arrangement, which can reduce the jaggedness of the image. In addition, the red sub-pixel r and some green sub-pixels g adopt a structure in which multiple sub-pixels share a single electroluminescent layer, which allows the sub-pixels to be arranged more densely and can achieve the effect of increasing the aperture ratio.

[0104] Optionally, the arrangement direction of the two electroluminescent layers g in the monolithic structure of the red sub-pixel group r1 is parallel to the row direction f4 of the sub-pixel row. The arrangement direction of at least two green target sub-pixels g11 in the green sub-pixel group g1 has an angle greater than zero degrees and less than or equal to 90 degrees with the row direction f4 of the sub-pixel row. Figure 9 The illustration shows a case where the angle between the arrangement direction of at least two green target sub-pixels g11 in the green sub-pixel group g1 and the row direction f4 of the sub-pixel row is 90 degrees. This 90-degree angle increases the area occupied by the multiple electroluminescent layers of the integrated structure in the green sub-pixel group g1, thereby increasing the size of the multiple electroluminescent layers and improving the aperture ratio of the display panel. However, in this embodiment, the angle can also be 70 degrees, 80 degrees, or 100 degrees, etc., and this embodiment does not limit the specific angle.

[0105] Optionally, in the multiple electroluminescent layers of multiple pixel units, the green independent sub-pixel g2, the red sub-pixel group r1, and the green sub-pixel group g1 are all located at the vertices of the pixel pitch region pp, and the blue independent sub-pixel b2 is located at the center of the pixel pitch region pp. As can be seen from the above, the location of a sub-pixel or sub-pixel group at the center or vertex of the pixel pitch region pp in this embodiment of the present invention can mean that the orthographic projection of the FMM opening k2 corresponding to the sub-pixel or sub-pixel group onto the substrate 21 is located at the center or vertex of the pixel pitch region pp, which also means that the electroluminescent material layer formed by evaporation based on the FMM opening k2 is located at the center or vertex of the pixel pitch region pp.

[0106] Figure 10 yes Figure 9 The diagram shows the arrangement of FMM openings corresponding to a type of green sub-pixel in the display panel. Figure 11 yes Figure 9 The diagram shows the arrangement of FMM openings corresponding to a type of red sub-pixel in the display panel. Figure 12 yes Figure 9 The diagram shown illustrates the arrangement of FMM openings corresponding to a type of blue sub-pixel in the display panel. Please refer to the diagram. Figure 10 , Figure 11 as well as Figure 12The display panel includes multiple pixel spacing areas pp arranged in rows and columns and forming a rectangle. One side of each pixel spacing area pp is perpendicular to the row direction of the multiple pixel spacing areas (the row direction of each pixel spacing area pp is...). Figure 9 , Figure 10 , Figure 11 as well as Figure 12 The horizontal direction is parallel, and the row direction (column direction of pixel spacing area pp) is parallel in multiple pixel spacing areas. Figure 9 , Figure 10 , Figure 11 as well as Figure 12 In the vertical direction and column direction, the spacing between two adjacent pixels is connected.

[0107] In the multiple electroluminescent layers of multiple pixel units, the electroluminescent material layer ge2 of the green independent sub-pixel, the electroluminescent material layer re1 of the red sub-pixel group, and the electroluminescent material layer ge1 of the green sub-pixel group are all located at the vertices of the pixel spacing region pp, while the electroluminescent material layer be2 of the blue independent sub-pixel is located at the center of the pixel spacing region pp.

[0108] Figure 9 In the display panel shown, every four-pixel spacing area pp includes an FMM opening k2 corresponding to a green subpixel group, an FMM opening k2 corresponding to two independent green subpixels g2, a green subpixel group g1, and two independent green subpixels g2. Since a green subpixel group g1 includes two green target subpixels g11, every four-pixel spacing area pp includes four green subpixels. The density of these green subpixels is similar to... Figure 1 The display panel shown is the same. And it is used for manufacturing... Figure 4 The parameters of the FMM (Film Mesh Module) in the display panel shown meet the requirements of manufacturing process capabilities: 1. The size of the FMM ribs is greater than or equal to 15 micrometers in the column direction f1 and row direction f2 of the pixel unit; 2. The size of the FMM ribs is greater than or equal to 35 micrometers in the row direction f4 and the first direction f3 of the sub-pixel row. Based on this, the FMM opening corresponding to the green sub-pixel in the display panel provided by this embodiment of the present invention satisfies the feasibility of FMM manufacturing.

[0109] For the red sub-pixel Figure 9 In the display panel shown, every four-pixel spacing area pp includes an FMM opening k2 corresponding to a red subpixel group, and two red target subpixels r11. The density of the red target subpixels r11 is similar to that of the FMM opening k2 corresponding to a red subpixel group. Figure 1 In the display panel shown, the density of red subpixels is the same. For blue subpixels, Figure 9 In the display panel shown, the arrangement of the blue sub-pixels is similar to... Figure 1 The display panels shown are similar, but the difference is that...Figure 9 The shape of the electroluminescent layer of the blue independent sub-pixel b2 shown can be adjusted in correspondence with the shape of the blue sub-pixel based on the preset opening ratio in the display panel.

[0110] In addition, Figure 9 The structure of the sub-pixels included in the pixel unit 23 is shown, but the sub-pixels included in the pixel unit can also be other structures, as long as two green sub-pixels, one red sub-pixel, and one blue sub-pixel are included in one pixel unit.

[0111] It should be noted that, Figure 9 In the pixel layout shown, the grid-shaped pixel spacing area is only used to show the relative positions of the sub-pixels of different colors, and the green sub-pixel, the red sub-pixel, and the blue sub-pixel can be moved as a whole relative to the center of a certain pixel spacing area to change the positions of these sub-pixels in the sub-pixel spacing area, or the positions of the green sub-pixel, the red sub-pixel, and the blue sub-pixel can also be interchanged. For example, the position of the green sub-pixel group can be interchanged with the position of the green independent sub-pixel, the green sub-pixel group can also be interchanged with the position of the blue independent sub-pixel, and the green independent sub-pixel can also be interchanged with the position of the blue independent sub-pixel. The present embodiment does not limit this.

[0112] Figure 13 is another structure diagram of a display panel provided by the present embodiment, Figure 14 is Figure 13 The arrangement of the FMM openings corresponding to a green sub-pixel in the display panel shown, Figure 15 is Figure 13 The arrangement of the FMM openings corresponding to a red sub-pixel in the display panel shown, Figure 16 is Figure 13 The arrangement of the FMM openings corresponding to a blue sub-pixel in the display panel shown, please refer to Figure 13 、 Figure 14 、 Figure 15 and Figure 16The first color sub-pixel is a green sub-pixel g. Among the multiple green sub-pixels g in the multiple pixel units 23, there are multiple green sub-pixel groups g1. Each green sub-pixel group g1 includes at least two adjacent green target sub-pixels g11, and the electroluminescent layers of the at least two green target sub-pixels g11 are a single integrated structure. The second color sub-pixel is a blue sub-pixel b. Among the multiple blue sub-pixels b in the multiple pixel units 23, there are multiple blue sub-pixel groups b1. Each blue sub-pixel group b1 includes at least two adjacent blue target sub-pixels b11, and the electroluminescent layers of the at least two blue target sub-pixels b11 are a single integrated structure. The third color sub-pixel is a red sub-pixel r. Among the multiple red sub-pixels r in the multiple pixel units, there are multiple red sub-pixel groups r1. Each red sub-pixel group r1 includes at least two adjacent red target sub-pixels r11, and the electroluminescent layers of the at least two red target sub-pixels r11 are a single integrated structure.

[0113] and Figure 4 as well as Figure 9 The display panel shown is different, Figure 13 In the illustrated display panel, the subpixels of all three colors comprise subpixel groups. For similar reasons, the red subpixel group r1, the green subpixel group g1, and the blue subpixel group b1 can reduce the spacing between the electroluminescent layers of at least two target subpixels, thereby increasing the aperture ratio. In an exemplary embodiment, the green subpixels in the display panel can all be green target subpixels, the red subpixels can all be red target subpixels, and the blue subpixels can all be blue target subpixels, which further enhances the effect of increasing the aperture ratio.

[0114] Optionally, multiple sub-pixels 231 in the multiple pixel units 23 are arranged in multiple sub-pixel rows on the substrate 21 along the first direction f3, and the row direction f4 of the sub-pixel rows is the same as the column direction f1 of a column of pixel units (the column direction f1 can be...). Figure 13 There is an angle between the vertical directions (f3 and f4) that is greater than zero degrees and less than 90 degrees. The first direction f3 is perpendicular to the row direction f4. Figure 13 The example shown is a case where the angle between the row direction f4 of the sub-pixel row and the column direction f1 of a column of pixel units 23 is 45 degrees, but this is not a limitation and the angle can also be 40 degrees, 50 degrees, etc.

[0115] The plurality of sub-pixel rows include a fifth sub-pixel row n5 and a sixth sub-pixel row n6 arranged alternately along the first direction f3, the fifth sub-pixel row n5 includes green sub-pixel groups g1 and red sub-pixel groups r1 arranged alternately along a row direction f4 of the sub-pixel row, and the sixth sub-pixel row n6 includes blue sub-pixel groups b1 and green sub-pixel groups g1 arranged alternately along the row direction f4 of the sub-pixel row. In this way, an arrangement mode of sub-pixels in a display panel including three color sub-pixels is provided, in which the sub-pixel row adopts a diagonal arrangement mode, which can reduce the sawtooth effect of the picture, and the blue sub-pixels, the green sub-pixels and the red sub-pixels all adopt a structure in which a plurality of sub-pixels share one electroluminescent layer, so that the sub-pixels can be arranged more closely, and the effect of improving the aperture ratio can be achieved.

[0116] Figure 13 In the display panel shown, the arrangement directions of a plurality of green target sub-pixels g11 in the green sub-pixel group g1, the arrangement directions of a plurality of blue target sub-pixels b11 in the blue sub-pixel group b1 and the arrangement directions of a plurality of red target sub-pixels r11 in the red sub-pixel group r1 are all parallel to the row direction f4 of the sub-pixel, but the arrangement directions of the target sub-pixels in one or more of the green sub-pixel group g1, the blue sub-pixel group b1 and the red sub-pixel group r1 can also be other directions, for example, perpendicular to the row direction f4 of the sub-pixel, and the embodiments of the present application do not limit this.

[0117] In an exemplary embodiment, the display panel includes a plurality of pixel pitch regions pp arranged in rows and columns and in a rectangular shape, one side of the pixel pitch region pp is parallel to the row direction of the plurality of pixel pitch regions pp (the row direction of the pixel pitch region pp is the horizontal direction in Figure 13 , Figure 14 , Figure 15 and Figure 16 ), and in the row direction and the column direction of the plurality of pixel pitch regions (the column direction of the pixel pitch region pp is the vertical direction in Figure 13 , Figure 14 , Figure 15 and Figure 16 ), two adjacent pixel pitch regions are connected.

[0118] In the multiple electroluminescent layers of multiple pixel units, the red sub-pixel group r1 is located at the vertex of the pixel pitch region pp, the blue sub-pixel group b1 is located at the center of the pixel pitch region pp, the green sub-pixel group g1 in the fifth sub-pixel row n5 is located at the vertex of the pixel pitch region pp, and the green sub-pixel group g1 in the sixth sub-pixel row is located at the center of the pixel pitch region pp. As can be seen from the above, the location of a sub-pixel or sub-pixel group at the center or vertex of the pixel pitch region pp in this embodiment of the invention can mean that the orthographic projection of the FMM opening k2 corresponding to that sub-pixel or sub-pixel group onto the substrate 21 is located at the center or vertex of the pixel pitch region pp, which also means that the electroluminescent material layer formed by evaporation based on the FMM opening k2 is located at the center or vertex of the pixel pitch region pp.

[0119] For example, the electroluminescent material layer re1 of the red sub-pixel group r1 is located at the vertex of the pixel pitch region pp, the electroluminescent material layer be1 of the blue sub-pixel group b1 is located at the center of the pixel pitch region pp, the electroluminescent material layer ge1 of the green sub-pixel group g1 in the fifth sub-pixel row n5 is located at the vertex of the pixel pitch region pp, and the electroluminescent material layer ge1 of the green sub-pixel group g1 in the sixth sub-pixel row is located at the center of the pixel pitch region pp.

[0120] also, Figure 13 In the display panel shown, the green sub-pixel group g1 may include a first green sub-pixel group g1a and a second green sub-pixel group g1b. Both the first green sub-pixel group g1a and the second green sub-pixel group g1b include two green target sub-pixels g11. The green target sub-pixels g11 in both the first green sub-pixel group g1a and the second green sub-pixel group g1b are rectangular and arranged along the row direction f4 of the sub-pixel row. The difference is that the long side of the green target sub-pixel g11 in the first green sub-pixel group g1a is perpendicular to the row direction f4, while the long side of the green target sub-pixel g11 in the second green sub-pixel group g1b is parallel to the row direction f4 of the sub-pixel row.

[0121] Figure 13 In the displayed panel shown, every four-pixel spacing area pp includes two FMM openings k2 corresponding to green sub-pixels, and four green target sub-pixels g11. The density of the green sub-pixels g is similar to... Figure 1 The display panel shown is the same and is used in manufacturing. Figure 13The parameters of the FMM of the display panel shown can meet the requirements of the manufacturing process capability: 1. In the column direction f1 of the pixel units and the row direction f2 of the pixel units, the size of the rib of the FMM is greater than or equal to 15 microns; 2. In the row direction f4 of the sub-pixel rows and the first direction f3, the size of the rib of the FMM is greater than or equal to 35 microns. On this basis, in the display panel provided by the embodiment of the present application, the FMM opening corresponding to the green sub-pixel meets the feasibility of FMM manufacturing.

[0122] For the red sub-pixel r, in every four pixel pitch areas pp, one FMM opening k2 corresponding to the red sub-pixel and two red target sub-pixels r11 are included, and the density of the red target sub-pixel r11 is the same as that of the red sub-pixel r. Figure 1 The density of the red sub-pixel in the display panel shown is the same. Figure 13 In the display panel shown, the distance between the FMM openings k2 corresponding to the adjacent red sub-pixel groups r1 is the process minimum distance (for example, the minimum distance is 10 microns), so that the overall aperture ratio of the pixel can be increased. For the blue sub-pixel, in every four pixel pitch areas pp, one FMM opening k2 corresponding to the blue sub-pixel and two blue target sub-pixels b11 are included, and the density of the blue target sub-pixel b11 is the same as that of the blue sub-pixel b. Figure 1 The density of the blue sub-pixel in the display panel shown is the same. Figure 13 In the display panel shown, the distance between the FMM openings k2 corresponding to the adjacent blue sub-pixel groups b1 is the process minimum distance, so that the overall aperture ratio of the pixel can be increased.

[0123] In the display panel provided by the embodiment of the present application, the FMM openings corresponding to the red sub-pixel and the blue sub-pixel both meet the feasibility of FMM manufacturing.

[0124] It should be noted that, Figure 13 In the pixel layout shown, the grid-shaped pixel pitch area is only used to show the relative positions of the sub-pixels of different colors, and the green sub-pixel, the red sub-pixel and the blue sub-pixel can be moved as a whole relative to the center of a certain pixel pitch area to change the positions of these sub-pixels in the sub-pixel pitch area, or the positions of the green sub-pixel, the red sub-pixel and the blue sub-pixel can also be interchanged, for example, the positions of the two green sub-pixel groups are interchanged, the green sub-pixel group (the first green sub-pixel group or the second green sub-pixel group) can also be interchanged with the position of the blue sub-pixel group, and the green sub-pixel group (the first green sub-pixel group or the second green sub-pixel group) can also be interchanged with the position of the red sub-pixel group, and the embodiments of the present application do not limit this.

[0125] In addition, Figure 4 , Figure 9 and Figure 13It is shown that the green sub-pixel group, the blue sub-pixel group and the red sub-pixel group each include two sub-pixels, but the green sub-pixel group, the blue sub-pixel group and the red sub-pixel group can also include 3, 4, 5, 6 or more sub-pixels (the number of sub-pixels in the green sub-pixel group, the blue sub-pixel group and the red sub-pixel group can be the same or different), and the embodiments of the utility model do not limit this. When the green sub-pixel group, the blue sub-pixel group and the red sub-pixel group include 3 or more sub-pixels, the three sub-pixels can be arranged along the row direction f4 of the sub-pixel row, can be arranged along the first direction f3, or can be arranged in a triangular shape, a rectangular shape or other arrangement modes.

[0126] It should be noted that in the embodiments of the utility model, the electroluminescent layer contained in a sub-pixel of a certain color is also an electroluminescent layer of the corresponding color, for example, the blue electroluminescent layer for emitting blue light is contained in the blue sub-pixel (including the blue target sub-pixel and the blue independent sub-pixel), the green electroluminescent layer for emitting green light is contained in the green sub-pixel (including the green target sub-pixel and the green independent sub-pixel), and the red electroluminescent layer for emitting red light is contained in the red sub-pixel (including the red target sub-pixel and the red independent sub-pixel).

[0127] In addition, the pixel arrangement structure shown in the above Figure 4 、 Figure 9 and Figure 13 provided by the embodiments of the utility model can also adjust the arrangement or extension direction of one or more sub-pixels to reduce the occurrence of non-straight sawteeth of a curved or special-shaped screen.

[0128] It should be noted that in the pixel arrangement structure shown in the above Figure 4 、 Figure 9 and Figure 13 provided by the embodiments of the utility model, the shape of the sub-pixel can only be illustrative, but in the display panel provided by the embodiments of the utility model, the shape of the sub-pixel is not limited to the shapes shown in Figure 4 、 Figure 9 and Figure 13 , the sub-pixel can also be other shapes, such as a parallelogram, a circle, a rhombus, a pentagon, a hexagon or other various shapes, and the embodiments of the utility model do not limit this. In addition, the FMM opening k2 is not limited to the shapes shown in Figure 16 、 Figure 1 and Figure 4 , the FMM opening k2 can also be a square, a circle, a parallelogram, a pentagon, a hexagon, etc., and the FMM opening k2 can also have some special-shaped points to meet the pixel design, for example, please refer to Figure 9Wherein, the blue electroluminescent material layer be1 of one blue sub-pixel group and the corner of the corresponding FMM opening k2 has a protrusion t1, and the edge of the blue electroluminescent material layer be1 of another blue sub-pixel group and the edge of the corresponding FMM opening k2 has a protrusion t2, the FMM opening k2 corresponding to various sub-pixels in the display panel provided by the embodiment of the present application can have the two protrusions.

[0129] Applicant has made some comparisons on the display panel shown in Figure 13 The display panel shown in Figure 1 、 Figure 4 and Figure 9 The applicant has made some comparisons on the display panel shown in

[0130] Table 1:

[0131] Figure 13 pp (microns) PDL G (microns) opening ratio R opening ratio 63.86 63.86 63.86 63.86 G opening ratio 20 20 20 20 B opening ratio 1：1.4：2.2 1：1.4：2.2 1：1.4：2.2 1：1.4：2.2 total opening ratio 6.74％ 7.60％ 6.83％ 8.03％ Figure 1 9.43％ 10.64％ 9.56％ 11.25％ Figure 1 14.82％ 16.72％ 15.02％ 17.67％ Figure 4 30.99％ 34.96％ 31.40％ 36.95％ Growth rate relative to Figure 9 the growth rate 0 12.8％ 1.31％ 19.21％

[0132] Table 1 shows some parameters in the display panel shown in Figure 13 The display panel shown in Figure 1 The display panel shown in Figure 1 And the display panel shown in Figure 4 Among them, pp represents the size of the pixel pitch area (the pixel pitch area is a square, and the size refers to the length of one side of the square), in microns, PDL G refers to the distance between the openings of adjacent pixel definition layers (i.e. PDL Gap), in microns, the opening ratio is the ratio of the opening rates of red sub-pixels, green sub-pixels and blue sub-pixels, R opening rate is the opening rate of red sub-pixels, G opening rate is the opening rate of green sub-pixels, B opening rate is the opening rate of blue sub-pixels, and total opening rate refers to the overall opening rate of the display panel, and the growth rate relative to Figure 1 The growth rate of the opening rate relative to Figure 4 The display panel shown in

[0133] As can be seen, Figure 9 The display panel shown in Figure 1 Compared with the display panel shown in, the opening rate can be increased by about 12.8% under the condition that pp and PDL G are the same. If the product is smaller in pixel pitch area (Pixel Pitch), such as the length of the pixel pitch area being less than or equal to 50 microns (PPI being greater than or equal to 500), Figure 9 The pixel design provided by the present application can bring greater pixel opening rate and product life benefits (the opening rate is expected to increase by more than 20%).

[0134] For the display panel shown in Figure 13 The pixel design can reduce the risk of color mixing and crosstalk, and also can improve the opening rate. Figure 1Compared with the display panel shown in the prior art, the aperture ratio can be increased by about 1.31% under the condition that the pp and PDL G are the same. If the product is smaller in pixel pitch, such as the length of the pixel pitch being less than or equal to 50 microns, Figure 13 The pixel design provided in the present disclosure can bring greater benefits in pixel aperture ratio and product life (the aperture ratio is expected to increase by more than 10%).

[0135] For ​ The display panel shown in the present disclosure can also reduce the risk of color mixing and crosstalk, and compared with the display panel shown in the prior art, ​ Compared with the display panel shown in the prior art, the aperture ratio can be increased by about 19.21% under the condition that the pp and PDL G are the same. If the product is smaller in pixel pitch, such as the length of the pixel pitch being less than or equal to 50 microns, ​ The pixel design provided in the present disclosure can bring greater benefits in pixel aperture ratio and product life (the aperture ratio is expected to increase by more than 30%).

[0136] In summary, in the display panel provided in the present disclosure, the display panel includes a substrate, a pixel definition layer located on the substrate, and a plurality of pixel units, at least two colors of sub-pixels in the plurality of pixel units include a plurality of sub-pixel groups, the sub-pixel group includes at least two target sub-pixels adjacent to each other, the at least two target sub-pixels are of the same color, and the electroluminescent layer is of an integrated structure. Thus, the electroluminescent layer of the at least two target sub-pixels can be formed by evaporation through an opening of one fine metal mask, so that the spacing between the electroluminescent layers of the at least two target sub-pixels can be reduced, thereby achieving the effect of increasing the aperture ratio.

[0137] In addition, the present disclosure also provides a display device, which includes a housing and any of the display panels provided in the above embodiments.

[0138] The display device can be a mobile phone, a tablet computer, a display, a television, a notebook computer, a vertical display screen, an outdoor display screen, a smart watch, a smart bracelet, a camera, a video camera, and various electronic devices with display functions, which are not listed one by one here.

[0139] The term "at least one of A and B" in the utility model is merely a description of the associated relationship of the associated object, and indicates that three relationships can exist, for example, at least one of A and B can indicate that A exists alone, A and B exist simultaneously, and B exists alone.

[0140] It should be noted that the dimensions of the layers and regions can be exaggerated in the drawings for clarity. Also, it can be understood that when a layer or element is referred to as being "on" another layer or element, it can be directly on the other element or intervening layers can also be present. In addition, it can be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements can also be present. Also, it can be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer or element between the two layers or elements or one or more intervening layers or elements can also be present. Similar reference characters do not indicate similar elements throughout the several views.

[0141] In the utility model, the terms "first", "second", "third", and "fourth" are used only for descriptive purposes and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more, unless otherwise explicitly limited.

[0142] The above description is only optional embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate; a pixel definition layer on the substrate, and comprising a plurality of pixel definition openings; a plurality of pixel units arranged in rows and columns on the substrate, two adjacent pixel units in a column of the pixel units are staggered arranged, one pixel unit comprises four sub-pixels arranged at four vertices of a virtual convex quadrilateral, and an included angle between one side of the virtual convex quadrilateral and the arrangement direction of the column of the pixel units is greater than 0 degrees and less than 180 degrees; the four sub-pixels comprise two first color sub-pixels, one second color sub-pixel and one third color sub-pixel, and the sub-pixels comprise electroluminescent layers; the plurality of pixel definition openings correspond to a plurality of sub-pixels in the plurality of pixel units respectively, and the electroluminescent layers in the sub-pixels are located on the corresponding pixel definition openings; at least two colors of sub-pixels in the plurality of pixel units comprise a plurality of sub-pixel groups, the sub-pixel groups comprise at least two target sub-pixels adjacent and of the same color, and the electroluminescent layers of the at least two target sub-pixels are of an integral structure.

2. The display panel of claim 1, wherein, In at least two colors of sub-pixels, at least one color of sub-pixels further comprises a plurality of independent sub-pixels, and the electroluminescent layers of the independent sub-pixels have gaps with the electroluminescent layers of adjacent sub-pixels of the same color.

3. The display panel of claim 2, wherein, The first color sub-pixel is a green sub-pixel, and in a plurality of green sub-pixels in the plurality of pixel units, a plurality of green sub-pixel groups and a plurality of green independent sub-pixels are included; the green sub-pixel groups include at least two green target sub-pixels adjacent, and the electroluminescent layers of the at least two green target sub-pixels are of an integral structure; the electroluminescent layers of the green independent sub-pixels have gaps with the electroluminescent layers of adjacent green sub-pixels.

4. The display panel of claim 3, wherein, The second color sub-pixel is a blue sub-pixel, and in a plurality of blue sub-pixels in the plurality of pixel units, a plurality of blue sub-pixel groups are included, the blue sub-pixel groups include at least two blue target sub-pixels adjacent, and the electroluminescent layers of the at least two blue target sub-pixels are of an integral structure; the third color sub-pixel is a red sub-pixel, and in a plurality of red sub-pixels in the plurality of pixel units, a plurality of red independent sub-pixels are included, and the electroluminescent layers of the red independent sub-pixels have gaps with the electroluminescent layers of adjacent red sub-pixels.

5. The display panel of claim 4, wherein, A plurality of sub-pixels in the plurality of pixel units are arranged as a plurality of sub-pixel rows in a first direction on the substrate, an included angle between the row direction of the sub-pixel rows and the column direction of the column of the pixel units is greater than zero degrees and less than 90 degrees, and the first direction is perpendicular to the row direction; the plurality of sub-pixel rows include first sub-pixel rows and second sub-pixel rows alternately arranged in the first direction, the first sub-pixel rows include green independent sub-pixels and red independent sub-pixels alternately arranged in the row direction, and the second sub-pixel rows include green sub-pixel groups and blue sub-pixel groups alternately arranged in the row direction.

6. The display panel of claim 5, wherein, The arrangement direction of at least two blue target sub-pixels in the blue sub-pixel group is parallel to the row direction. An included angle between an arrangement direction of at least two green target sub-pixels in the green sub-pixel group and the row direction is greater than zero and less than or equal to 90 degrees.

7. The display panel of claim 5, wherein, The display panel comprises a plurality of pixel pitch areas arranged in rows and columns and in a rectangular shape, one side of the pixel pitch areas is parallel to the row direction of the plurality of pixel pitch areas, and in the row direction and the column direction of the plurality of pixel pitch areas, two adjacent pixel pitch areas are connected; In a plurality of electroluminescent layers of the plurality of pixel units, the green independent sub-pixel, the green sub-pixel group, and the blue sub-pixel group are located at the center of the pixel pitch area, and the red independent sub-pixel is located at the vertex of the pixel pitch area.

8. The display panel of claim 3, wherein, The third color sub-pixel is a red sub-pixel, and in a plurality of red sub-pixels in the plurality of pixel units, a plurality of red sub-pixel groups are included, at least two red target sub-pixels adjacent to each other are included in the red sub-pixel group, and the electroluminescent layers of the at least two red target sub-pixels are in an integrated structure. The second color sub-pixel is a blue sub-pixel, and in a plurality of blue sub-pixels in the plurality of pixel units, a plurality of blue independent sub-pixels are included, and the electroluminescent layer of the blue independent sub-pixel has a gap with the electroluminescent layer of an adjacent blue sub-pixel.

9. The display panel of claim 8, wherein, A plurality of sub-pixels in the plurality of pixel units are arranged in a plurality of sub-pixel rows in a first direction on the substrate, an included angle between a row direction of the sub-pixel row and a column direction of the column of pixel units is greater than zero and less than 90 degrees, and the first direction is perpendicular to the row direction. The plurality of sub-pixel rows include third sub-pixel rows and fourth sub-pixel rows alternately arranged in the first direction, the third sub-pixel rows include green independent sub-pixels and blue independent sub-pixels alternately arranged in the row direction, and the fourth sub-pixel rows include green sub-pixel groups and red sub-pixel groups alternately arranged in the row direction.

10. The display panel of claim 9, wherein, An arrangement direction of at least two red target sub-pixels in the red sub-pixel group is parallel to the row direction. An included angle between an arrangement direction of at least two green target sub-pixels in the green sub-pixel group and the row direction is greater than zero and less than or equal to 90 degrees.

11. The display panel of claim 9, wherein, The display panel comprises a plurality of pixel pitch areas arranged in rows and columns and in a rectangular shape, one side of the pixel pitch areas is parallel to the row direction of the plurality of pixel pitch areas, and in the row direction and the column direction of the plurality of pixel pitch areas, two adjacent pixel pitch areas are connected; In a plurality of electroluminescent layers of the plurality of pixel units, the green independent sub-pixel, the red sub-pixel group, and the green sub-pixel group are located at the vertex of the pixel pitch area, and the blue independent sub-pixel is located at the center of the pixel pitch area.

12. The display panel of claim 1, wherein, The first color sub-pixel is a green sub-pixel, and in a plurality of green sub-pixels in the plurality of pixel units, a plurality of green sub-pixel groups are included, at least two green target sub-pixels adjacent to each other are included in the green sub-pixel group, and the electroluminescent layers of the at least two green target sub-pixels are in an integrated structure; The second color sub-pixel is a blue color sub-pixel, and the plurality of blue color sub-pixels include a plurality of blue color sub-pixel groups, each of the blue color sub-pixel groups includes at least two adjacent target blue color sub-pixels, and the electroluminescent layers of the at least two target blue color sub-pixels are integrated structures. The third color sub-pixel is a red color sub-pixel, and the plurality of red color sub-pixels include a plurality of red color sub-pixel groups, each of the red color sub-pixel groups includes at least two adjacent target red color sub-pixels, and the electroluminescent layers of the at least two target red color sub-pixels are integrated structures.

13. The display panel of claim 12, wherein, The plurality of sub-pixels in the plurality of pixel units are arranged as a plurality of sub-pixel rows in a first direction on the substrate, and an included angle between a row direction of the sub-pixel rows and a column direction of a column of the pixel units is greater than zero degrees and less than 90 degrees, and the first direction is perpendicular to the row direction. The plurality of sub-pixel rows include the fifth sub-pixel row and the sixth sub-pixel row arranged alternately in the first direction, the fifth sub-pixel row includes green color sub-pixel groups and red color sub-pixel groups arranged alternately in the row direction, and the sixth sub-pixel row includes blue color sub-pixel groups and green color sub-pixel groups arranged alternately in the row direction.

14. The display panel of claim 13, wherein, The display panel includes a plurality of pixel pitch regions arranged in rows and columns and in a rectangular shape, one side of the pixel pitch regions is parallel to a row direction of the plurality of pixel pitch regions, and in the row direction and the column direction of the plurality of pixel pitch regions, two adjacent pixel pitch regions are connected. In the plurality of electroluminescent layers of the plurality of pixel units, a red color sub-pixel group is located at a vertex of the pixel pitch region, a blue color sub-pixel group is located at a center of the pixel pitch region, a green color sub-pixel group in the fifth sub-pixel row is located at the vertex of the pixel pitch region, and a green color sub-pixel group in the sixth sub-pixel row is located at the center of the pixel pitch region.

15. A display device comprising: The display device includes a housing and the display panel of any one of claims 1 to 14.

Images