Pixel arrangement structure, display panel and electrode mask plate

Abstract

The invention relates to a pixel arrangement structure, a display panel and an electrode mask plate. The pixel arrangement structure comprises a plurality of pixel units, each pixel unit comprises a plurality of sub-pixels, and each sub-pixel comprises a first electrode, a light-emitting layer and a second electrode which are arranged in a stacked mode. In the pixel units, the same second electrode covers the sides, away from the first electrodes, of the light-emitting layers of the sub-pixels. Wherein the second electrodes of two adjacent pixel units are arranged at intervals. Therefore, embedded touch control capacitance signals in the display panel comprising the pixel arrangement structure can be released through the area between the adjacent second electrodes, so that the intensity of the touch control signals of the display panel comprising the pixel arrangement structure can be improved; and the pixel arrangement structure can be applied to an embedded touch control technology.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a pixel arrangement structure, a display panel and an electrode mask plate. Background Art

[0002] Touch screen (full name: Touch Panel), also known as touch screen or touch panel, is an inductive display device that can receive input signals such as contacts, and is widely used in various electronic products. With the in-depth development of display technology, more requirements are put forward for the touch technology of display panels. Therefore, how to improve the strength of the touch signal of the display panel has become one of the future development trends. Summary of the invention

[0003] Based on this, it is necessary to provide a pixel arrangement structure, a display panel and an electrode mask plate to address the above technical problems, which can improve the strength of the touch signal of the display panel and can be applied to the embedded touch technology.

[0004] According to a first aspect of the present application, a pixel arrangement structure is provided, the pixel arrangement structure comprising a plurality of pixel units, each of the pixel units comprising a plurality of sub-pixels;

[0005] Each of the sub-pixels comprises a first electrode, a light-emitting layer, and a second electrode which are stacked;

[0006] In the pixel unit, the same second electrode is respectively covered on a side of the light-emitting layer of a plurality of the sub-pixels away from the first electrode;

[0007] Wherein, the second electrodes of two adjacent pixel units are arranged at intervals from each other.

[0008] In one of the embodiments, in the same pixel unit, the orthographic projection of the second electrode in the reference plane covers the orthographic projections of the light-emitting layers of a plurality of the sub-pixels in the reference plane;

[0009] Wherein, the reference plane is perpendicular to the thickness direction of the first electrode;

[0010] Optionally, in the same pixel unit, an outer contour of an orthographic projection of the second electrode in the reference plane is located outside an outer contour of an orthographic projection of light-emitting layers of a plurality of the sub-pixels in the reference plane.

[0011] In one of the embodiments, in the same pixel unit, the orthographic projection shapes of the light emitting layers of the plurality of sub-pixels in the reference plane are the same;

[0012] Optionally, the orthographic projection of the light-emitting layer of the sub-pixel in the reference plane is a circle or a regular polygon;

[0013] Wherein, the reference plane is perpendicular to the thickness direction of the first electrode;

[0014] Optionally, the orthographic projection structure of the light-emitting layer of the sub-pixel in the reference plane is a circle or a regular hexagon;

[0015] Optionally, the orthographic projections of the light-emitting layers of the plurality of sub-pixels in the reference plane are all constructed as circles; or, the orthographic projections of the light-emitting layers of the plurality of sub-pixels in the reference plane are all constructed as regular polygons.

[0016] In one embodiment, the orthographic projection of the second electrode in the reference plane is configured as a circle or a regular polygon;

[0017] Wherein, the reference plane is perpendicular to the thickness direction of the first electrode;

[0018] Optionally, the orthographic projection of the second electrode in the reference plane is configured as a circle or a regular hexagon.

[0019] In one of the embodiments, in the same pixel unit, the light-emitting layers of the plurality of sub-pixels are arranged at intervals around a preset center; and the orthographic projections of the light-emitting layers of the plurality of sub-pixels in the reference plane are all constructed to be circular; or

[0020] In the same pixel unit, the light-emitting layers of the plurality of sub-pixels are arranged at intervals around a preset center; the orthographic projections of the light-emitting layers of the plurality of sub-pixels in a reference plane are all constructed as regular polygons, and the number of the sub-pixels in the pixel unit is equal to the number of sides of the regular polygon; wherein the reference plane is perpendicular to the thickness direction of the first electrode;

[0021] Optionally, in the same pixel unit, the light-emitting layers of a plurality of sub-pixels are arranged at equal intervals around a preset center;

[0022] Optionally, in the same pixel unit, a line connecting the centers of the light-emitting layers of the plurality of sub-pixels forms a first virtual circle;

[0023] Optionally, the pixel unit includes 3n sub-pixels, where n is a positive integer greater than or equal to 1;

[0024] Optionally, the pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel; in the same pixel unit, the number of the first sub-pixel, the second sub-pixel and the third sub-pixel is the same, and the luminous colors of the first sub-pixel, the second sub-pixel and the third sub-pixel are different, and the first sub-pixel, the second sub-pixel and the third sub-pixel are arranged around the preset center in a preset order;

[0025] Optionally, one of the first sub-pixel, the second sub-pixel and the third sub-pixel is a red sub-pixel, another of the first sub-pixel, the second sub-pixel and the third sub-pixel is a green sub-pixel, and another of the first sub-pixel, the second sub-pixel and the third sub-pixel is a blue sub-pixel.

[0026] In one embodiment, a plurality of the pixel units are arranged to form a plurality of repeating units;

[0027] A center line connecting a plurality of the pixel units in the same repeating unit forms a second virtual circle;

[0028] Optionally, a plurality of the pixel units in the same repeating unit are arranged to form four pixel unit groups, each of the pixel unit groups includes two pixel units, and two adjacent pixel unit groups along a first direction are symmetrically arranged with a first target plane perpendicular to the first direction as a reference object; and / or

[0029] Two pixel unit groups adjacent to each other along a second direction are symmetrically arranged with a second target plane perpendicular to the second direction as a reference object;

[0030] The first direction and the second direction are perpendicular to each other.

[0031] According to a second aspect of the present application, a display panel is provided, comprising:

[0032] substrate; and

[0033] The pixel arrangement structure of any of the above embodiments;

[0034] Wherein, a plurality of the pixel units are arranged on the substrate at intervals.

[0035] In one embodiment, the display panel further includes:

[0036] A plurality of first power signal lines are arranged on the substrate; the first power signal lines are arranged in one-to-one correspondence with the pixel units, and the second electrodes of the pixel units are electrically connected to the corresponding first power signal lines through a first via connection structure;

[0037] The orthographic projection of the first via connection structure on the substrate is located within the range of the orthographic projection of the corresponding second electrode on the substrate.

[0038] In one embodiment, the display panel further includes a connecting portion electrically connected to the second electrode, one end of the first via connection structure is connected to the first power signal line, and the other end is connected to the connecting portion;

[0039] The transfer portion is arranged in the same layer as the first electrode of the sub-pixel.

[0040] According to a third aspect of the present application, an electrode mask plate is provided, which is applied to the pixel arrangement structure of any of the above embodiments, wherein the electrode mask plate has a plurality of mask openings, and the mask openings are arranged in a one-to-one correspondence with the second electrodes.

[0041] In the technical solution of the present application, since the same second electrode in the pixel unit is respectively covered on the side of the light-emitting layer of multiple sub-pixels away from the first electrode, it can be understood that the multiple sub-pixels of the pixel unit share a second electrode, and the second electrodes of the two adjacent pixel units are arranged at intervals from each other. In this way, compared with the entire cathode, the pixel arrangement structure of the present application can reduce the occupied area of ​​the second electrode in the light-transmitting area, which is beneficial to improve the transmittance of the display panel including the pixel arrangement structure, and is beneficial to apply the display panel including the pixel arrangement structure to a transparent display panel; it is also beneficial for the embedded touch capacitor signal in the display panel including the pixel arrangement structure to be released through the area between adjacent second electrodes, which is beneficial to improve the strength of the touch signal of the display panel including the pixel arrangement structure, and is also beneficial to apply the pixel arrangement structure to embedded touch technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic structural diagram of a pixel arrangement structure according to an embodiment of the present application is shown.

[0043] Figure 2 A schematic structural diagram of a repeating unit according to an embodiment of the present application is shown.

[0044] Figure 3 A schematic structural diagram of a pixel unit according to an embodiment of the present application is shown.

[0045] Figure 4 A partial cross-sectional view of a display panel according to an embodiment of the present application is shown.

[0046] Figure 5 A schematic structural diagram of a pixel unit according to another embodiment of the present application is shown.

[0047] Figure 6 A schematic structural diagram of a repeating unit according to another embodiment of the present application is shown.

[0048] Figure 7 A schematic structural diagram of a pixel unit according to another embodiment of the present application is shown.

[0049] Figure 8 A schematic structural diagram of a repeating unit according to another embodiment of the present application is shown.

[0050] Fig. 9A schematic structural diagram of a pixel unit according to another embodiment of the present application is shown.

[0051] Fig.10 A schematic structural diagram of a repeating unit according to another embodiment of the present application is shown.

[0052] Fig.11 A schematic structural diagram of an electrode mask plate according to an embodiment of the present application is shown.

[0053] Fig.12 A schematic structural diagram of a first mask plate according to an embodiment of the present application is shown.

[0054] Fig.13 A schematic structural diagram of a second mask plate according to an embodiment of the present application is shown.

[0055] Fig.14 A schematic structural diagram of a third mask plate according to an embodiment of the present application is shown.

[0056] Reference numerals: 10, display panel; 100, repeating unit; 101, pixel unit; 102, pixel unit group; 1011, sub-pixel; 110, first electrode; 120, light-emitting layer; 121, first light-emitting layer; 122, second light-emitting layer; 123, third light-emitting layer; 130, second electrode; 140, adapter; 200, substrate; 210, substrate; 220, drive circuit layer; 221, first power signal line; 222 , first via connection structure; 300, pixel defining layer; 310, pixel opening; 400, encapsulation layer; 20, electrode mask plate; 201, mask opening; 30, first mask plate; 301, first evaporation opening; 40, second mask plate; 401, second evaporation opening; 50, third mask plate; 501, third evaporation opening; Y1, first virtual circle; Y2, second virtual circle; M1, first target plane; M2, second target plane. DETAILED DESCRIPTION

[0057] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0058] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0059] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0061] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0063] Figure 1 A schematic diagram showing a pixel arrangement structure according to an embodiment of the present application is shown. Figure 2 A schematic diagram showing the structure of a repeating unit according to an embodiment of the present application is shown. Figure 3 FIG. 1 shows a schematic structural diagram of a pixel unit according to an embodiment of the present application. Figure 4 A partial cross-sectional view of a display panel according to an embodiment of the present application is shown.

[0064] Please refer to Figure 1-Figure 4 An embodiment of the present application provides a pixel arrangement structure, including a plurality of pixel units 101 , and the plurality of pixel units 101 are arranged to form a plurality of repeating units 100 .

[0065] Each pixel unit 101 includes a plurality of sub-pixels 1011, and each sub-pixel 1011 includes a first electrode 110, a light-emitting layer 120, and a second electrode 130 that are stacked. In the pixel unit 101, the same second electrode 130 is respectively covered on the side of the light-emitting layer 120 of the plurality of sub-pixels 1011 that is away from the first electrode 110. It can be understood that the second electrodes 130 of the plurality of sub-pixels 1011 of the pixel unit 101 are an integrally formed structure, and the plurality of sub-pixels 1011 of the pixel unit 101 share one second electrode 130.

[0066] Since the multiple sub-pixels 1011 of the pixel unit 101 share a second electrode 130, and the second electrodes 130 of two adjacent pixel units 101 are arranged at intervals from each other, the pixel arrangement structure of the present application can reduce the occupied area of ​​the second electrode 130 in the light-transmitting area compared to the entire cathode, which is beneficial to improve the transmittance of the display panel 10 including the pixel arrangement structure, and is beneficial to apply the display panel 10 including the pixel arrangement structure to a transparent display panel; it is also beneficial for the embedded touch capacitor signal in the display panel 10 including the pixel arrangement structure to be released through the area between the adjacent second electrodes 130, which is beneficial to improve the strength of the touch signal of the display panel 10 including the pixel arrangement structure, and is also beneficial to apply the pixel arrangement structure to embedded touch technology.

[0067] It should be supplemented that the second electrode 130 serves as a common cathode of the plurality of sub-pixels 1011 of the pixel unit 101 , and the cross-section of the second electrode 130 may be circular, polygonal or other irregular shapes.

[0068] In some embodiments, in the same pixel unit 101 , the orthographic projection of the second electrode 130 in the reference plane covers the orthographic projections of the light-emitting layer 120 of multiple sub-pixels 1011 in the reference plane, wherein the reference plane is perpendicular to the thickness direction of the first electrode 110 .

[0069] It can be understood that the reference plane is perpendicular to the thickness direction of the display panel 10 mentioned above.

[0070] If a high-level voltage signal is provided to the first electrode 110 of each of the multiple sub-pixels 1011 of the pixel unit 101, and a low-level voltage signal is provided to the second electrode 130, the orthographic projection of the second electrode 130 in the reference plane covers the orthographic projection of the light-emitting layer 120 of the multiple sub-pixels 1011 in the reference plane. This is beneficial for the multiple sub-pixels 1011 of the pixel unit 101 to emit light more evenly.

[0071] In some embodiments, in the same pixel unit 101 , the outer contour of the orthographic projection of the second electrode 130 in the reference plane is located outside the outer contour of the orthographic projection of the light emitting layer 120 of the plurality of sub-pixels 1011 in the reference plane.

[0072] In this way, the area on the second electrode 130 that is not in contact with the light emitting layer 120 is connected to the corresponding power signal line through the via connection structure, so as to provide the second electrode 130 with a corresponding low-level voltage signal.

[0073] In some embodiments, in the same pixel unit 101 , the orthographic projection shapes of the light emitting layers 120 of a plurality of sub-pixels 1011 in the reference plane are the same.

[0074] In this way, the diffraction effects generated at the edges of the light-emitting layers 120 of the plurality of sub-pixels 1011 can be made consistent, thereby facilitating improving the display effect of the display panel 10 including the pixel arrangement structure.

[0075] In some embodiments, the orthographic projection of the light emitting layer 120 of the sub-pixel 1011 in the reference plane is configured as a circle or a regular polygon, wherein the reference plane is perpendicular to the thickness direction of the first electrode 110 .

[0076] It may be that the orthographic projection of the light-emitting layer 120 of the sub-pixel 1011 in the reference plane is a circle; or it may be that the orthographic projection of the light-emitting layer 120 of the sub-pixel 1011 in the reference plane is a regular polygon, such as an equilateral triangle, a regular quadrilateral, a regular pentagon or a regular hexagon.

[0077] Since the area where the sub-pixel 1011 is located is a light-opaque area, and the area between the sub-pixels 1011 is usually a light-transmissive area, light will diffract at the edge of the light-emitting layer 120 of the sub-pixel 1011. By constructing the orthographic projection of the light-emitting layer 120 of the sub-pixel 1011 in the reference plane as a circle or a regular polygon, the distance between the center of the light-emitting layer 120 of the sub-pixel 1011 and the edges of the light-emitting layer 120 of the sub-pixel 1011 can be roughly equal, thereby making the diffraction effect produced at the edges of the light-emitting layer 120 of the sub-pixel 1011 tend to be consistent, which is beneficial to improving the display effect of the display panel 10 including the pixel arrangement structure.

[0078] In some embodiments, the orthographic projections of the light-emitting layers 120 of the plurality of sub-pixels 1011 in the reference plane are all configured as circles, or the orthographic projections of the light-emitting layers 120 of the plurality of sub-pixels 1011 in the reference plane are all configured as regular polygons. For example, the orthographic projections of the light-emitting layers 120 of the plurality of sub-pixels 1011 in the reference plane are all configured as regular hexagons.

[0079] In this way, the diffraction effects produced at the edges of the light-emitting layer 120 of the sub-pixel 1011 can be made consistent, and the diffraction effects produced at the edges of the light-emitting layer 120 of multiple sub-pixels 1011 can be made consistent, which is beneficial to improving the display effect of the display panel 10 including the pixel arrangement structure.

[0080] In some embodiments, Figure 5-Figure 6 and Figure 9-10 As shown, the orthographic projections of the light-emitting layers 120 of the plurality of sub-pixels 1011 in the reference plane are all constructed as regular hexagons.

[0081] The regular hexagon tends to be circular. Compared with other shapes except the regular hexagon and the circle, the light-emitting layer 120 of the sub-pixel 1011 occupies a larger area per unit size, which is beneficial to increase the light-emitting area of ​​the sub-pixel 1011, and can also well balance and take into account the light-emitting area of ​​the sub-pixel 1011 and the transmittance of the screen.

[0082] In some embodiments, Figure 1-Figure 3 and Figure 7-Figure 8 As shown, the orthographic projections of the light-emitting layers 120 of the plurality of sub-pixels 1011 in the reference plane are all constructed to be circular.

[0083] Compared with other shapes except circles, the light-emitting layer 120 of the sub-pixel 1011 occupies a larger area per unit size, which is beneficial to increasing the light-emitting area of ​​the sub-pixel 1011, and can well balance and take into account the light-emitting area of ​​the sub-pixel 1011 and the transmittance of the screen.

[0084] In some embodiments, the orthographic projection of the second electrode 130 in the reference plane is configured as a circle or a regular polygon, wherein the reference plane is perpendicular to the thickness direction of the first electrode 110 .

[0085] It can be, for example Figure 1-Figure 3 and Figure 9-10 As shown, the orthographic projection of the second electrode 130 in the reference plane is a circle; it can also be, as shown in Figure 5-Figure 6 and Figure 7-Figure 8 As shown, the orthographic projection of the second electrode 130 in the reference plane is configured as a regular polygon, such as a regular triangle, a regular quadrilateral, a regular pentagon or a regular hexagon.

[0086] In this way, the light-emitting layers 120 of the plurality of sub-pixels 1011 can be evenly arranged within the region where the second electrode 130 is located, thereby facilitating improving the display uniformity of the display panel 10 including the pixel arrangement structure.

[0087] In some embodiments, in the same pixel unit 101 , the light emitting layers 120 of the plurality of sub-pixels 1011 are arranged at intervals around a preset center, and the orthographic projections of the light emitting layers 120 of the plurality of sub-pixels 1011 in the reference plane are all constructed to be circular.

[0088] Specifically, the light emitting layers 120 of the plurality of sub-pixels 1011 are arranged at equal intervals around a preset center.

[0089] It can be understood that the light emitting layer 120 of the plurality of sub-pixels 1011 is designed to be an inner polygonal petal arc and an outer polygonal petal arc, such as Figure 1-Figure 3 As shown, the light-emitting layer 120 of multiple sub-pixels 1011 is designed with an inner hexagonal petal arc and an outer hexagonal petal arc. In this way, the diffraction effects produced at the inner edges of the light-emitting layer 120 of the multiple sub-pixels 1011 tend to be consistent, and the diffraction effects produced at the outer edges of the light-emitting layer 120 of the multiple sub-pixels 1011 tend to be consistent, which is beneficial to improving the display effect of the display panel 10 including the pixel arrangement structure.

[0090] In other embodiments, in the same pixel unit 101, the light-emitting layers 120 of the multiple sub-pixels 1011 are arranged at intervals around a preset center, the orthographic projections of the light-emitting layers 120 of the multiple sub-pixels 1011 in the reference plane are all constructed as regular polygons, and the number of sub-pixels 1011 in the pixel unit 101 is equal to the number of sides of the regular polygon.

[0091] Specifically, the light emitting layers 120 of the plurality of sub-pixels 1011 are arranged at equal intervals around a preset center.

[0092] It can be understood that the light emitting layer 120 of the plurality of sub-pixels 1011 is designed as an inner polygon and an outer polygon, such as Figure 5-Figure 6As shown, the light-emitting layer 120 of the multiple sub-pixels 1011 is designed to be an inner hexagon and an outer hexagon. In this way, the diffraction effects produced at the inner edges of the light-emitting layer 120 of the multiple sub-pixels 1011 tend to be consistent, and the diffraction effects produced at the outer edges of the light-emitting layer 120 of the multiple sub-pixels 1011 tend to be consistent, which is beneficial to improving the display effect of the display panel 10 including the pixel arrangement structure.

[0093] In some embodiments, a line connecting the centers of the light emitting layer 120 of the plurality of sub-pixels 1011 forms a first virtual circle Y1 .

[0094] In this way, the light emitting layers 120 of the plurality of sub-pixels 1011 of the pixel unit 101 can be arranged uniformly, thereby facilitating improvement of display uniformity of the display panel 10 including the pixel arrangement structure.

[0095] In some embodiments, the pixel unit 101 includes 3n sub-pixels 1011 , where n is a positive integer greater than or equal to 1.

[0096] It may be that the pixel unit 101 includes three sub-pixels 1011, and the orthographic projections of the light-emitting layers 120 of the three sub-pixels 1011 in the reference plane are all constructed as circles; it may also be that the pixel unit 101 includes three sub-pixels 1011, and the orthographic projections of the light-emitting layers 120 of the three sub-pixels 1011 in the reference plane are all constructed as regular triangles; it may also be that the pixel unit 101 includes six sub-pixels 1011, and the orthographic projections of the light-emitting layers 120 of the six sub-pixels 1011 in the reference plane are all constructed as circles; it may also be that the pixel unit 101 includes six sub-pixels 1011, and the orthographic projections of the light-emitting layers 120 of the six sub-pixels 1011 in the reference plane are all constructed as regular hexagons; and so on.

[0097] In this way, on the one hand, the light-emitting layers 120 of the multiple sub-pixels 1011 of the pixel unit 101 can be arranged evenly, which is beneficial to improving the display uniformity of the display panel 10 including the pixel arrangement structure; on the other hand, the diffraction effects generated at the inner edges of the light-emitting layers 120 of the multiple sub-pixels 1011 tend to be consistent, and the diffraction effects generated at the outer edges of the light-emitting layers 120 of the multiple sub-pixels 1011 tend to be consistent, which is beneficial to improving the display effect of the display panel 10 including the pixel arrangement structure.

[0098] In some embodiments, the pixel unit 101 includes a first sub-pixel, a second sub-pixel and a third sub-pixel. In the same pixel unit 101, the number of the first sub-pixel, the second sub-pixel and the third sub-pixel is the same, and the luminous colors of the first sub-pixel, the second sub-pixel and the third sub-pixel are different. The first sub-pixel, the second sub-pixel and the third sub-pixel are arranged in a preset order around a preset center interval.

[0099] The number of the first sub-pixel, the second sub-pixel, and the third sub-pixel may be 1; or the number of the first sub-pixel, the second sub-pixel, and the third sub-pixel may be 2; and so on. For example, the number of the first sub-pixel, the second sub-pixel, and the third sub-pixel may be 2, and the first sub-pixel, the second sub-pixel, and the third sub-pixel may be arranged at equal intervals around a preset center in a preset order.

[0100] In this way, the display effect of the display panel 10 can be improved by utilizing the first sub-pixel, the second sub-pixel, and the third sub-pixel with different luminous colors.

[0101] In some embodiments, one of the first sub-pixel, the second sub-pixel, and the third sub-pixel is a red sub-pixel, another of the first sub-pixel, the second sub-pixel, and the third sub-pixel is a green sub-pixel, and yet another of the first sub-pixel, the second sub-pixel, and the third sub-pixel is a blue sub-pixel.

[0102] For example, the first sub-pixel is a red sub-pixel, the light-emitting layer 120 of the first sub-pixel is the first light-emitting layer 121, the second sub-pixel is a green sub-pixel, the light-emitting layer 120 of the second sub-pixel is the second light-emitting layer 122, the third sub-pixel is a blue sub-pixel, and the light-emitting layer 120 of the third sub-pixel is the third light-emitting layer 123.

[0103] In this way, the red sub-pixel, the green sub-pixel and the blue sub-pixel are three primary colors, and color display can be achieved using the red sub-pixel, the green sub-pixel and the blue sub-pixel.

[0104] In this embodiment, the light-emitting areas of the light-emitting layers 120 of the first sub-pixel, the second sub-pixel, and the third sub-pixel can be controlled and applied according to corresponding proportions. For example, if the overall lifespan of all the light-emitting layers 120 is taken into consideration, the light-emitting area of ​​the light-emitting layer 120 of the blue sub-pixel can be increased to be larger than the light-emitting area of ​​the light-emitting layer 120 of the red sub-pixel, and larger than the light-emitting area of ​​the light-emitting layer 120 of the green sub-pixel.

[0105] In some embodiments, a plurality of pixel units 101 are arranged to form a plurality of repeating units 100 , and a center line connecting a plurality of pixel units 101 in the same repeating unit 100 forms a second virtual circle Y2 .

[0106] In this way, the multiple pixel units 101 in the repeating unit 100 can be arranged uniformly, which is beneficial to improving the display uniformity of the display panel 10 including the pixel arrangement structure. On the other hand, the orthographic projection of the light-emitting layer 120 of the sub-pixel 1011 of the multiple pixel units 101 in the repeating unit 100 in the reference plane is roughly a circular pattern, so that the light-emitting layer 120 of the sub-pixel 1011 of the multiple pixel units 101 in the repeating unit 100 occupies a larger area per unit size, which is beneficial to increasing the light-emitting area of ​​the sub-pixel 1011, and can also well balance and take into account the light-emitting area of ​​the sub-pixel 1011 and the transmittance of the screen.

[0107] In some embodiments, multiple pixel units 101 in the same repeating unit 100 are arranged to form four pixel unit groups 102, each pixel unit group 102 includes two pixel units 101, and two adjacent pixel unit groups 102 along the first direction F1 are symmetrically arranged with a first target plane M1 perpendicular to the first direction F1 as a reference object.

[0108] In this way, in the same repeating unit 100 , two pixel unit groups 102 adjacent to each other along the first direction F1 are arranged regularly, which is beneficial to improving the display uniformity of the display panel 10 including the pixel arrangement structure.

[0109] In other embodiments, multiple pixel units 101 in the same repeating unit 100 are arranged to form four pixel unit groups 102, each pixel unit group 102 includes two pixel units 101, and two adjacent pixel unit groups 102 along the second direction F2 are symmetrically arranged with a second target plane M2 perpendicular to the second direction F2 as a reference object.

[0110] In this way, in the same repeating unit 100 , two pixel unit groups 102 adjacent to each other along the second direction F2 are arranged regularly, which is beneficial to improving the display uniformity of the display panel 10 including the pixel arrangement structure.

[0111] In some other embodiments, a plurality of pixel units 101 in the same repeating unit 100 are arranged to form four pixel unit groups 102, each pixel unit group 102 includes two pixel units 101, two pixel unit groups 102 adjacent along a first direction F1 are symmetrically arranged with a first target plane M1 perpendicular to the first direction F1 as a reference object, and two pixel unit groups 102 adjacent along a second direction F2 are symmetrically arranged with a second target plane M2 perpendicular to the second direction F2 as a reference object. The first direction F1 and the second direction F2 are perpendicular to each other.

[0112] For example, the first direction F1 and the second direction F2 are perpendicular to the thickness direction of the first electrode 110. Then, the reference plane, the first target plane M1 and the second target plane M2 are perpendicular to each other.

[0113] Thus, in the same repeating unit 100 , two adjacent pixel unit groups 102 along the first direction F1 are arranged regularly, and two adjacent pixel unit groups 102 along the second direction F2 are arranged regularly, which is beneficial to improve the display uniformity of the display panel 10 including the pixel arrangement structure.

[0114] In addition, the light-emitting layer 120 of the sub-pixels 1011 of the eight pixel units 101 in the same repeating unit 100 can be designed in an inner octagonal petal shape and an outer octagonal petal shape, so that the diffraction effects produced at the inner edges of the light-emitting layer 120 of the sub-pixels 1011 of the eight pixel units 101 can tend to be consistent, and the diffraction effects produced at the outer edges of the light-emitting layer 120 of the sub-pixels 1011 of the eight pixel units 101 can tend to be consistent, which is beneficial to improving the display effect of the display panel 10 including the pixel arrangement structure.

[0115] An embodiment of the present application provides a display panel 10 , comprising a pixel arrangement structure of any of the above embodiments and a substrate 200 , wherein a plurality of pixel units 101 are arranged at intervals on the substrate 200 .

[0116] The substrate 200 may include a stacked substrate 210 and a driving circuit layer 220, and a plurality of pixel units 101 are arranged at intervals on a side of the driving circuit layer 220 away from the substrate 210. The substrate 210 may be made of materials such as glass or polyimide (PI). In some embodiments, a driving circuit for driving each sub-pixel 1011 is provided on the driving circuit layer 220. Under the drive of the driving circuit, sub-pixels 1011 of different colors can be excited to emit light of different colors, so that the display panel 10 can achieve a colorful display effect.

[0117] In some embodiments, the display panel 10 also includes a pixel defining layer 300, and a plurality of pixel openings 310 corresponding one-to-one to the plurality of sub-pixels 1011 are provided on the pixel defining layer 300. The pixel openings 310 are used to at least partially expose the first electrode 110 of the corresponding sub-pixel 1011, and to accommodate the light-emitting layer 120 of the corresponding sub-pixel 1011. In this way, the plurality of sub-pixels 1011 can be arranged at intervals to reduce the occurrence of color mixing between the sub-pixels 1011.

[0118] In some embodiments, the display panel 10 also includes a plurality of first power signal lines 221, and the plurality of first power signal lines 221 are arranged on the substrate 200. The first power signal lines 221 are arranged one-to-one with the pixel units 101. The second electrode 130 of the pixel unit 101 is electrically connected to the corresponding first power signal line 221 through a first via connection structure 222. The orthographic projection of the first via connection structure 222 on the substrate 200 is located within the range of the orthographic projection of the corresponding second electrode 130 on the substrate 200.

[0119] Specifically, the plurality of first power signal lines 221 are part of the driving circuit, and are used to provide a low-level voltage signal to the second electrode 130 of the sub-pixel 1011 .

[0120] In this way, on the one hand, the corresponding low-level voltage signal can be provided to the second electrode 130 of the corresponding pixel unit 101 through the first power signal line 221 and the first via connection structure 222, so as to meet the luminous demand of the sub-pixel 1011 of the corresponding pixel unit 101; on the other hand, since the orthographic projection of the first via connection structure 222 on the substrate 200 is located within the range of the orthographic projection of the corresponding second electrode 130 on the substrate 200, the area where the second electrode 130 is located can meet the demand for overlapping or array routing of the second electrode 130, while also reducing the occupancy of the light-transmitting area of ​​the display panel 10, which is beneficial to improving the light transmittance of the display panel 10, and is also beneficial to the application of the display panel 10 in transparent display technology.

[0121] In some embodiments, the display panel 10 also includes a transition portion 140 electrically connected to the second electrode 130 , one end of the first via connection structure 222 is connected to the first power signal line 221 , and the other end is connected to the transition portion 140 , and the transition portion 140 is arranged on the same layer as the first electrode 110 of the sub-pixel 1011 .

[0122] That is to say, the adapter 140 and the first electrode 110 of the sub-pixel 1011 are formed in the same process, which is beneficial to reducing the manufacturing process time of the display panel 10 and thus improving the manufacturing efficiency of the display panel 10 , and is also beneficial to reducing the thickness of the display panel 10 .

[0123] In some embodiments, the display panel 10 further includes an encapsulation layer 400 . The encapsulation layer 400 is disposed on a side of the pixel defining layer 300 facing away from the substrate 200 and covers the plurality of sub-pixels 1011 .

[0124] The encapsulation layer 400 can be used to block water vapor from entering the corresponding sub-pixel 1011 , thereby forming an encapsulation for the sub-pixel 1011 , which is beneficial to improving the reliability of the display panel 10 .

[0125] Fig.11A schematic structural diagram of an electrode mask plate 20 according to an embodiment of the present application is shown.

[0126] like Fig.11 As shown, an embodiment of the present application provides an electrode mask plate 20 , which is applied to the pixel arrangement structure of any of the above embodiments. The electrode mask plate 20 has a plurality of mask openings 201 , and the mask openings 201 are arranged in a one-to-one correspondence with the second electrodes 130 .

[0127] In this way, multiple sub-pixels 1011 of the pixel unit 101 can share a second electrode 130, and the second electrodes 130 of two adjacent pixel units 101 can be arranged at intervals from each other, so that compared with the entire cathode, the pixel arrangement structure of the present application can reduce the occupied area of ​​the second electrode 130 in the light-transmitting area, which is beneficial to improve the transmittance of the display panel 10 including the pixel arrangement structure, and is beneficial to apply the display panel 10 including the pixel arrangement structure to a transparent display panel; it is also beneficial for the embedded touch capacitor signal in the display panel 10 including the pixel arrangement structure to be released through the area between adjacent second electrodes 130, which is beneficial to improve the strength of the touch signal of the display panel 10 including the pixel arrangement structure, and is also beneficial to apply the pixel arrangement structure to embedded touch technology.

[0128] like Fig.12 As shown, an embodiment of the present application provides a first mask plate 30, on which a plurality of first evaporation openings 301 corresponding to the plurality of first sub-pixels of the repeating unit 100 are provided. The first mask plate 30 can be used to evaporate a material corresponding to the light-emitting layer 120 (i.e., the first light-emitting layer 121) of the first sub-pixel on the substrate 200 to form a plurality of first light-emitting layers 121 on the substrate 200 through the plurality of first evaporation openings 301.

[0129] It should be noted that the radial dimension of the first evaporation opening 301 is slightly larger than the radial dimension of the first light emitting layer 121 along the first evaporation opening 301 , which is beneficial for adjusting the dimensions of the first evaporation opening 301 at different positions of the first mask plate 30 within the process margin.

[0130] like Fig.13 As shown, an embodiment of the present application provides a second mask plate 40, on which a plurality of second evaporation openings 401 corresponding to the plurality of second sub-pixels of the repeating unit 100 are provided. The second mask plate 40 can be used to evaporate a material corresponding to the light-emitting layer 120 (i.e., the second light-emitting layer 122) of the second sub-pixel on the substrate 200 to form a plurality of second light-emitting layers 122 on the substrate 200 through the plurality of second evaporation openings 401.

[0131] It should be noted that the radial dimension of the second evaporation opening 401 is slightly larger than the radial dimension of the second light emitting layer 122 along the second evaporation opening 401 , which is beneficial for adjusting the dimensions of the second evaporation opening 401 at different positions of the second mask plate 40 within the process margin.

[0132] like Fig.14 As shown, an embodiment of the present application provides a third mask plate 50, on which a plurality of third evaporation openings 501 corresponding to the plurality of third sub-pixels of the repeating unit 100 are provided. The third mask plate 50 can be used to evaporate a material corresponding to the light-emitting layer 120 (i.e., the third light-emitting layer 123) of the third sub-pixel on the substrate 200 to form a plurality of third light-emitting layers 123 on the substrate 200 through the plurality of third evaporation openings 501.

[0133] It should be noted that the radial dimension of the third evaporation opening 501 is slightly larger than the radial dimension of the third light emitting layer 123 along the third evaporation opening 501 , which is beneficial for adjusting the dimensions of the third evaporation opening 501 at different positions of the third mask plate 50 within the process margin.

[0134] Therefore, from the perspective of size design and process manufacturing, and based on the electrode mask plate 20, the first mask plate 30, the second mask plate 40 and the third mask plate 50, the pixel arrangement structure of the present application can be well manufactured.

[0135] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0136] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A pixel arrangement structure, characterized in that: The pixel arrangement structure includes a plurality of pixel units, and each of the pixel units includes a plurality of sub-pixels; Each of the sub-pixels comprises a first electrode, a light-emitting layer, and a second electrode which are stacked; In the pixel unit, the same second electrode is respectively covered on a side of the light-emitting layer of a plurality of the sub-pixels away from the first electrode; Wherein, the second electrodes of two adjacent pixel units are arranged at intervals from each other.

2. The pixel arrangement structure according to claim 1, characterized in that: In the same pixel unit, the orthographic projection of the second electrode in the reference plane covers the orthographic projections of the light-emitting layers of a plurality of the sub-pixels in the reference plane; Wherein, the reference plane is perpendicular to the thickness direction of the first electrode; Optionally, in the same pixel unit, an outer contour of an orthographic projection of the second electrode in the reference plane is located outside an outer contour of an orthographic projection of light-emitting layers of a plurality of the sub-pixels in the reference plane.

3. The pixel arrangement structure according to claim 1, characterized in that: In the same pixel unit, the orthographic projection shapes of the light-emitting layers of the plurality of sub-pixels in the reference plane are the same; Optionally, the orthographic projection of the light-emitting layer of the sub-pixel in the reference plane is a circle or a regular polygon; Wherein, the reference plane is perpendicular to the thickness direction of the first electrode; Optionally, the orthographic projection structure of the light-emitting layer of the sub-pixel in the reference plane is a circle or a regular hexagon; Optionally, the orthographic projections of the light-emitting layers of the plurality of sub-pixels in the reference plane are all constructed as circles; or, the orthographic projections of the light-emitting layers of the plurality of sub-pixels in the reference plane are all constructed as regular polygons.

4. The pixel arrangement structure according to claim 1, characterized in that: The orthographic projection of the second electrode in the reference plane is a circle or a regular polygon; Wherein, the reference plane is perpendicular to the thickness direction of the first electrode; Optionally, the orthographic projection of the second electrode in the reference plane is configured as a circle or a regular hexagon.

5. The pixel arrangement structure according to any one of claims 1 to 4, characterized in that: In the same pixel unit, the light-emitting layers of the plurality of sub-pixels are arranged at intervals around a preset center; and the orthographic projections of the light-emitting layers of the plurality of sub-pixels in the reference plane are all constructed to be circular; or In the same pixel unit, the light-emitting layers of the plurality of sub-pixels are arranged at intervals around a preset center; the orthographic projections of the light-emitting layers of the plurality of sub-pixels in a reference plane are all constructed as regular polygons, and the number of the sub-pixels in the pixel unit is equal to the number of sides of the regular polygon; wherein the reference plane is perpendicular to the thickness direction of the first electrode; Optionally, in the same pixel unit, the light-emitting layers of a plurality of sub-pixels are arranged at equal intervals around a preset center; Optionally, in the same pixel unit, a line connecting the centers of the light-emitting layers of the plurality of sub-pixels forms a first virtual circle; Optionally, the pixel unit includes 3n sub-pixels, where n is a positive integer greater than or equal to 1; Optionally, the pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel; in the same pixel unit, the number of the first sub-pixel, the second sub-pixel and the third sub-pixel is the same, and the luminous colors of the first sub-pixel, the second sub-pixel and the third sub-pixel are different, and the first sub-pixel, the second sub-pixel and the third sub-pixel are arranged around the preset center in a preset order; Optionally, one of the first sub-pixel, the second sub-pixel and the third sub-pixel is a red sub-pixel, another of the first sub-pixel, the second sub-pixel and the third sub-pixel is a green sub-pixel, and another of the first sub-pixel, the second sub-pixel and the third sub-pixel is a blue sub-pixel.

6. The pixel arrangement structure according to any one of claims 1 to 4, characterized in that: A plurality of the pixel units are arranged to form a plurality of repeating units; A center line connecting a plurality of the pixel units in the same repeating unit forms a second virtual circle; Optionally, a plurality of the pixel units in the same repeating unit are arranged to form four pixel unit groups, each of the pixel unit groups includes two pixel units, and two adjacent pixel unit groups along a first direction are symmetrically arranged with a first target plane perpendicular to the first direction as a reference object; and / or Two pixel unit groups adjacent to each other along a second direction are symmetrically arranged with a second target plane perpendicular to the second direction as a reference object; The first direction and the second direction are perpendicular to each other.

7. A display panel, characterized in that: include: substrate; and The pixel arrangement structure according to any one of claims 1 to 6; Wherein, a plurality of the pixel units are arranged on the substrate at intervals.

8. The display panel according to claim 7, characterized in that: The display panel further includes: A plurality of first power signal lines are arranged on the substrate; the first power signal lines are arranged in one-to-one correspondence with the pixel units, and the second electrodes of the pixel units are electrically connected to the corresponding first power signal lines through a first via connection structure; The orthographic projection of the first via connection structure on the substrate is located within the range of the orthographic projection of the corresponding second electrode on the substrate.

9. The display panel according to claim 8, characterized in that: The display panel further includes a connecting portion electrically connected to the second electrode, one end of the first via connection structure is connected to the first power signal line, and the other end is connected to the connecting portion; The transfer portion is arranged in the same layer as the first electrode of the sub-pixel.

10. An electrode mask plate, characterized in that: Applied to the pixel arrangement structure according to any one of claims 1 to 6, the electrode mask plate has a plurality of mask openings, and the mask openings are arranged in a one-to-one correspondence with the second electrodes.

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