Display panel and electronic device

Abstract

The invention provides a display panel and an electronic device, the display panel comprises a substrate, a plurality of first pixel unit groups and a plurality of second pixel unit groups, the first pixel unit groups and the second pixel unit groups are alternately arranged on the substrate in the first direction, and each first pixel unit group and each second pixel unit group comprise two pixels which are centrosymmetric to each other. Each pixel at least comprises three light-emitting units which are arranged at intervals and have different colors, and in any two adjacent pixels, one light-emitting unit of one pixel and one adjacent light-emitting unit of the other pixel have the same color. According to the OLED device, the colors of the adjacent light-emitting units between the two adjacent pixels are the same, so that color mixing between the pixels can be avoided when the light-emitting units are printed by adopting an ink-jet printing process, and the problem of color mixing between the pixels of an existing OLED device is solved.

Description

Technical Field

[0001] This application relates to the field of display technologies, and in particular, to a display panel and an electronic device. Background Art

[0002] Organic Light Emitting Display (OLED) devices have gradually become high-end displays replacing liquid crystal displays due to their advantages such as ultra-high contrast ratio, wide color gamut, fast response, and active light emission. Usually, the light-emitting layer of an OLED device can be prepared by ink jet printing (IJP) or evaporation. Among them, ink jet printing has advantages such as wide color gamut, high material utilization rate, and high resolution compared to the traditional evaporation process. However, there is a risk of color mixing between pixels when using the ink jet printing process. Summary of the Invention

[0003] This application provides a display panel and an electronic device to alleviate the technical problem of color mixing between pixels existing in existing OLED devices.

[0004] To solve the above problems, the technical solutions provided by this application are as follows:

[0005] An embodiment of this application provides a display panel, which includes:

[0006] A substrate;

[0007] A plurality of first pixel unit groups and a plurality of second pixel unit groups arranged alternately on the substrate along a first direction, each of the first pixel unit groups and each of the second pixel unit groups includes two pixels that are centrosymmetric to each other;

[0008] Wherein, each pixel includes at least three light-emitting units arranged at intervals and having different colors;

[0009] Among any two adjacent pixels, one light-emitting unit of one pixel has the same color as one adjacent light-emitting unit of the other pixel.

[0010] In the display panel provided by the embodiment of this application, in the first direction, the adjacent first pixel unit group and the second pixel unit group are axisymmetric.

[0011] In the display panel provided by the embodiment of this application, in a second direction, a plurality of the first pixel unit groups are arranged in an array, and a plurality of the second pixel unit groups are also arranged in an array, and the first pixel unit groups and the second pixel unit groups are located in different rows.

[0012] In the display panel provided by the embodiment of this application, in the second direction, two adjacent pixels are centrosymmetric.

[0013] In the display panel provided by the embodiment of the present application, in the second direction, the first pixel unit group and the second pixel unit group are arranged alternately.

[0014] In the display panel provided by the embodiment of the present application, in the second direction, the adjacent first pixel unit group and the second pixel unit group are axisymmetric.

[0015] In the display panel provided by the embodiment of the present application, in the first direction, the adjacent first pixel unit group and the second pixel unit group are centrosymmetric.

[0016] In the display panel provided by the embodiment of the present application, the shapes of the first pixel unit group and the second pixel unit group are both rhombic, the shapes of the three light-emitting units of different colors of each pixel are all triangular, each light-emitting unit includes two short sides and one long side, the length of the long side is greater than the length of the short side, and within each pixel, the vertices formed by the two short sides of each light-emitting unit are close to each other, and the extension lines of the long sides of each light-emitting unit enclose an isosceles triangle.

[0017] In the display panel provided by the embodiment of the present application, the shapes of the first pixel unit group and the second pixel unit group are both square, the shapes of the three light-emitting units of different colors of each pixel are all triangular, each light-emitting unit includes two short sides and one long side, the length of the long side is greater than the length of the short side, and within each pixel, the vertices formed by the two short sides of each light-emitting unit are close to each other, and the extension lines of the long sides of each light-emitting unit enclose a right triangle.

[0018] In the display panel provided by the embodiment of the present application, the three light-emitting units of different colors are respectively a first-color light-emitting unit, a second-color light-emitting unit, and a third-color light-emitting unit, wherein the first-color light-emitting unit is a blue light-emitting unit. Within the same pixel, the area of the first-color light-emitting unit is greater than the area of the second-color light-emitting unit and greater than the area of the third-color light-emitting unit.

[0019] In the display panel provided by the embodiment of the present application, the display panel further includes:

[0020] A first electrode arranged in an array on the substrate;

[0021] A pixel definition layer covering the substrate and the first electrode, and having a pixel opening formed at a position corresponding to the first electrode, and the pixel opening exposes the corresponding first electrode;

[0022] Each light-emitting unit is disposed in one pixel opening;

[0023] The barrier layer is disposed on a side of the pixel definition layer away from the substrate and between two adjacent light-emitting units of different colors.

[0024] In the display panel provided in the embodiment of the present application, the material of the barrier layer is a hydrophobic material.

[0025] The embodiment of the present application further provides an electronic device, which includes the display panel of any one of the foregoing embodiments.

[0026] The beneficial effects of the present application are as follows: In the display panel and the electronic device provided in the present application, the display panel includes a substrate and a plurality of first pixel unit groups and a plurality of second pixel unit groups alternately arranged on the substrate in a first direction. Each of the first pixel unit groups and each of the second pixel unit groups includes two pixels that are centrosymmetric to each other. Each pixel includes at least three light-emitting units arranged at intervals of different colors. Among any two adjacent pixels, one light-emitting unit of one pixel has the same color as one adjacent light-emitting unit of the other pixel. By making the colors of adjacent light-emitting units between adjacent two pixels the same, when the light-emitting units are printed by an inkjet printing process, color mixing between pixels can be avoided, thereby solving the problem of color mixing between pixels existing in existing OLED devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a top view structural schematic diagram of the display panel provided in the embodiment of the present application.

[0029] Figure 2 It is a cross-sectional structural schematic diagram of the display panel provided in the embodiment of the present application.

[0030] Figure 3 It is a partial detailed structural schematic diagram of the display panel provided in the embodiment of the present application.

[0031] Figure 4 It is another top view structural schematic diagram of the display panel provided in the embodiment of the present application.

[0032] Figure 5 It is yet another top view structural schematic diagram of the display panel provided in the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The description of the following embodiments refers to the accompanying drawings, which are used to illustrate specific embodiments in which the present application can be implemented. The directional terms mentioned in the present application, such as [up], [down], [front], [back], [left], [right], [inside], [outside], [side], etc., are only with reference to the directions of the accompanying drawings. Therefore, the directional terms used are for explaining and understanding the present application, rather than for limiting the present application. In the drawings, units with similar structures are denoted by the same reference numerals. In the drawings, the thicknesses of some layers and regions are exaggerated for clear understanding and easy description. That is, the dimensions and thicknesses of each component shown in the drawings are arbitrarily shown, but the present application is not limited thereto.

[0034] Please refer to Figures 1 to 3 , Figure 1 which is a top view structural schematic diagram of a display panel provided by an embodiment of the present application, Figure 2 which is a cross-sectional structural schematic diagram of a display panel provided by an embodiment of the present application, Figure 3 which is a partial detailed structural schematic diagram of a display panel provided by an embodiment of the present application. The display panel 100 includes a substrate 10 and a plurality of pixels arranged on the substrate 10 (such as Figure 1 the first pixel 20-1, the second pixel 20-2, the third pixel 20-3, and the fourth pixel 20-4 shown). Each of the pixels includes at least three light-emitting units of different colors arranged at intervals (such as Figure 1 the light-emitting units R, G, B shown). Among them, in any two adjacent pixels, one light-emitting unit of one pixel has the same color as one adjacent light-emitting unit of the other pixel.

[0035] Specifically, the display panel 100 further includes a first electrode 30 and a pixel definition layer 40 arranged in an array on the substrate 10. The pixel definition layer 40 covers the substrate 10 and the first electrode 30, and a pixel opening 401 is formed at a position corresponding to the first electrode 30, and the pixel opening 401 exposes the corresponding first electrode 30. Each of the light-emitting units is disposed in a pixel opening 401.

[0036] Specifically, the substrate 10 includes a substrate 11 and a driving circuit layer 12 disposed on the substrate 11. Optionally, a buffer layer 13 may be further disposed between the substrate 11 and the driving circuit layer 12. The material of the buffer layer 13 may include inorganic materials such as silicon oxide (SiOx), silicon nitride (SiNx), silicon oxynitride (SiON), etc. The buffer layer 13 can further prevent unwanted impurities or contaminants (such as moisture, oxygen, etc.) from diffusing from the substrate 11 to devices that may be damaged by these impurities or contaminants, and at the same time can also provide a flat top surface.

[0037] Optionally, the substrate 11 may be a rigid substrate or a flexible substrate; when the substrate 11 is a rigid substrate, it may include a hard substrate such as a glass substrate 10; when the substrate 11 is a flexible substrate, it may include a flexible substrate such as a polyimide (PI) film or an ultra-thin glass film. Using a flexible substrate as the substrate 11 can fabricate a flexible display panel to achieve special properties such as bending and curling of the display panel 100.

[0038] The driving circuit layer 12 includes an active layer 121, a gate insulating layer 122, a gate 123, an interlayer insulating layer 124, a source-drain layer 125, a passivation layer 126, and a planarization layer 127 that are sequentially stacked on the buffer layer 13. The active layer 121 includes a channel region 1211 and source and drain regions 1212 and 1213 located on both sides of the channel region 1211. The gate insulating layer 122 covers the active layer 121 and is disposed corresponding to the channel region 1211. The gate 123 is disposed on the gate insulating layer 122, and the gate 123 is disposed corresponding to the channel region 1211.

[0039] Optionally, the substrate 10 further includes a light-shielding layer 14. The light-shielding layer 14 is disposed on the substrate 11, and the buffer layer 13 covers the light-shielding layer 14 and the substrate 11. The light-shielding layer 14 is disposed corresponding to the active layer 121 such that the orthographic projection of the active layer 121 on the substrate 11 falls within the orthographic projection of the light-shielding layer 14 on the substrate 11, that is, the light-shielding layer 14 can completely shield the active layer 121 to prevent light from irradiating the active layer 121.

[0040] The interlayer insulating layer 124 covers the gate 123 and the buffer layer 13. The source-drain layer 125 is disposed on the interlayer insulating layer 124. The source-drain layer 125 is patterned to form a source 1251, a drain 1252, etc. The source 1251 is connected to the source region 1212 through a via hole in the interlayer insulating layer 124, and the drain 1252 is connected to the drain region 1213 through another via hole in the interlayer insulating layer 124.

[0041] The passivation layer 126 covers the source-drain layer 125 and the interlayer insulating layer 124, and the planarization layer 127 covers the passivation layer 126. Providing the planarization layer 127 can provide a flat film surface for the substrate 10.

[0042] It should be noted that the structure of the driving circuit layer 12 in this application is not limited to that shown in this embodiment. The driving circuit layer 12 of this application may also include more or fewer film layers, and the positional relationship of each film layer is not limited to that shown in this embodiment either. For example, the gate 123 may also be located below the active layer 121 to form a bottom gate structure.

[0043] The first electrode 30 is arranged in an array on the planarization layer 127, and each first electrode 30 is connected to the source electrode 1251 or the drain electrode 1252 through a via hole in the planarization layer 127 and the passivation layer 126. In this application, the case where the first electrode 30 is connected to the drain electrode 1252 is taken as an example for illustration.

[0044] Optionally, the first electrode 30 may be a transparent electrode or a reflective electrode. If the first electrode 30 is a transparent electrode, the first electrode 30 may be formed of, for example, indium tin oxide (ITO), indium zinc oxide (IZO), ZnO, or In2O3. If the first electrode 30 is a reflective electrode, the first electrode 30 may include, for example, a reflective layer formed of Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, or a combination thereof, and a layer formed of ITO, IZO, ZnO, or In2O3. However, the first electrode 30 is not limited thereto, and the first electrode 30 may be formed of various materials and may also be formed into a single-layer or multi-layer structure.

[0045] The pixel defining layer 40 covers the first electrode 30 and the planarization layer 127, and the pixel defining layer 40 is patterned to form pixel openings 401. Each pixel opening 401 corresponds to one first electrode 30 and exposes a part of the first electrode 30 to define the setting area of the light emitting unit. The light emitting unit is disposed in the pixel opening 401 and covers the first electrode 30 within the pixel opening 401.

[0046] Among them, the light emitting units of different colors are formed by printing light emitting materials of different colors in the pixel openings 401. Specifically, light emitting materials of different colors are respectively melted in different organic solutions to form inks of different colors, and then the inks of different colors are respectively printed in different pixel openings 401 by processes such as inkjet printing to form light emitting units of different colors. Light emitting materials of different colors emit light of different colors. For example, a red light emitting material emits red light, a green light emitting material emits green light, and a blue light emitting material emits blue light, so that the light emitting units of different colors formed emit light of different colors.

[0047] Specifically, the three light-emitting units of different colors are a first-color light-emitting unit B, a second-color light-emitting unit R, and a third-color light-emitting unit G. The first-color light-emitting unit B is a blue light-emitting unit that emits blue light; the second-color light-emitting unit R is a red light-emitting unit that emits red light; the third-color light-emitting unit G is a green light-emitting unit that emits green light. The surface shapes of the first-color light-emitting unit B, the second-color light-emitting unit R, and the third-color light-emitting unit G are all triangular, but this application is not limited thereto. The surface shape of the light-emitting unit in this application may also be other regular or irregular figures.

[0048] Since each pixel includes at least three light-emitting units of different colors, that is, each pixel includes a first-color light-emitting unit B, a second-color light-emitting unit R, and a third-color light-emitting unit G, each pixel can display various colors, thereby enabling the display panel 100 to achieve color display.

[0049] It can be understood that in order to make the light-emitting unit emit light, the display panel 100 further includes a second electrode 60 disposed on the light-emitting unit and the pixel definition layer 40. The light-emitting unit emits light under the combined action of the first electrode 30 and the second electrode 60. Light-emitting units of different colors emit different colors of light, thereby achieving full-color display of the display panel 100. In the embodiment of this application, the first electrode 30 is an anode, and the second electrode 60 is a cathode. Of course, this application is not limited thereto. The first electrode 30 in this application may also be a cathode, and correspondingly, the second electrode 60 is an anode.

[0050] Optionally, in order to improve the light transmittance, the second electrode 60 is formed of a transparent conductive material. For example, the second electrode 60 may be formed of a transparent conductive oxide (TCO) such as ITO, IZO, ZnO, or In2O3.

[0051] Alternatively, the display panel 100 may further include a hole injection layer (HIL) and a hole transport layer (HTL) disposed between the light-emitting unit and the first electrode 30; and an electron injection layer (EIL) and an electron transport layer (ETL) disposed between the light-emitting unit and the second electrode 60. The hole injection layer receives holes transmitted by the first electrode 30, and the holes are transmitted to the light-emitting unit via the hole transport layer. The electron injection layer receives electrons transmitted by the second electrode 60, and the electrons are transmitted to the light-emitting unit via the electron transport layer. Holes and electrons combine at the position of the light-emitting unit to generate excitons, and the excitons transition from the excited state to the ground state to release energy and emit light.

[0052] Furthermore, in order to protect the light-emitting unit and prevent the light-emitting unit from failing due to the intrusion of water and oxygen, the display panel 100 further includes a packaging layer 70 disposed on the second electrode 60. Optionally, the packaging layer 70 may adopt thin-film packaging. For example, the packaging layer 70 may be a stacked structure formed by sequentially laminating a first inorganic packaging layer, an organic packaging layer, and a second inorganic packaging layer, or a stacked structure with more layers.

[0053] In addition, since the colors of two adjacent light-emitting units are the same between every two adjacent pixels, color mixing between adjacent pixels can be avoided, thereby improving the display quality. The following will elaborate on how to make the colors of adjacent light-emitting units the same between adjacent pixels:

[0054] Optionally, the display panel 100 includes a first pixel unit group 1 and a second pixel unit group 2 arranged in sequence along a first direction X, such that the first pixel unit group 1 and the second pixel unit group 2 are alternately arranged along the first direction X, and the adjacent first pixel unit group 1 and second pixel unit group 2 are axisymmetric. Both the first pixel unit group 1 and the second pixel unit group 2 include two pixels. Inside the first pixel unit group 1 and the second pixel unit group 2, the centers of the two pixels are symmetric.

[0055] Optionally, the shapes of the three light-emitting units of different colors of each pixel are all triangles. Each light-emitting unit includes two short sides and one long side, and the length of the long side is greater than the length of the short side. Inside each pixel, the vertices formed by the two short sides of each light-emitting unit are close to each other, and the extension lines of the long sides of each light-emitting unit enclose an isosceles triangle, that is, the shape of each pixel is an isosceles triangle. Thus, the shapes of the first pixel unit group 1 and the second pixel unit group 2 formed by two mutually centrosymmetric pixels are both rhombuses.

[0056] Specifically, the first pixel unit group 1 includes a first pixel 20-1 and a second pixel 20-2. The first pixel 20-1 and the second pixel 20-2 are centrosymmetric to each other, and the shapes of both the first pixel 20-1 and the second pixel 20-2 are isosceles triangles. The second pixel unit group 2 includes a third pixel 20-3 and a fourth pixel 20-4. The third pixel 20-3 and the fourth pixel 20-4 are centrosymmetric to each other, and the shapes of both the third pixel 20-3 and the fourth pixel 20-4 are isosceles triangles. Moreover, since the adjacent first pixel unit group 1 and the second pixel unit group 2 are axisymmetric, for the adjacent first pixel unit group 1 and the second pixel unit group 2, the first pixel 20-1 in the first pixel unit group 1 and the third pixel 20-3 in the second pixel unit group 2 are axisymmetric, and the second pixel 20-2 in the first pixel unit group 1 and the fourth pixel 20-4 in the second pixel unit group 2 are axisymmetric.

[0057] Further, in the second direction Y, both the first pixel unit group 1 and the second pixel unit group 2 are arranged in an array. Specifically, along the second direction Y, the first pixel unit group 1 and the second pixel unit group 2 are not adjacent. That is, in the second direction Y, the first pixel unit group 1 is arranged in a single row alone, and the second pixel unit group 2 is also arranged in a single row alone. The first pixel unit group 1 and the second pixel unit group 2 are in different rows. It should be noted that the first direction X in the present application may be the vertical direction, the second direction Y is the horizontal direction, and the first direction X is perpendicular to the second direction Y. Of course, the present application is not limited thereto. The first direction X in the present application may also be the horizontal direction, the second direction Y is the vertical direction, and the first direction X and the second direction Y may also have other included angles.

[0058] Since both the first pixel unit group 1 and the second pixel unit group 2 are arranged in an array in the second direction Y, and the two pixels in the first pixel unit group 1 and the two pixels in the second pixel unit group 2 are centrosymmetric to each other, any two adjacent pixels are centrosymmetric to each other along the second direction Y. At the same time, since in the first direction X, the adjacent first pixel unit group 1 and the second pixel unit group 2 are axisymmetric, the colors of the adjacent light-emitting units are the same between any two adjacent pixels. In this way, when the light-emitting units are printed by an inkjet printing process, since the colors of the adjacent light-emitting units are the same between any two adjacent pixels, even if there is an error due to the limited nozzle accuracy of the inkjet printing device, which may cause a change in the printing direction and the ink to be injected into the adjacent light-emitting unit, color mixing between pixels will not occur.

[0059] However, it can be understood that since the colors of adjacent light-emitting units within the same pixel are different, there is still a risk of color mixing within the pixel. To avoid color mixing between adjacent light-emitting units within the same pixel, a barrier layer 50 can be provided between adjacent light-emitting units within the same pixel to prevent ink from entering the pits of adjacent light-emitting units.

[0060] Specifically, the barrier layer 50 is provided on the side of the pixel defining layer 40 away from the substrate 10 and is located between two adjacent light-emitting units of different colors. The material of the barrier layer 50 is a hydrophobic material. For example, the hydrophobic material can be formed by subjecting an organic photoresist material to a process treatment to cause fluorine ions to accumulate on its surface. By providing the barrier layer 50 between two adjacent light-emitting units of different colors, the barrier height between the light-emitting units is increased, so that even if there is a printing deviation of the nozzle, the barrier layer 50 can still block the deviated ink droplets and make them finally flow into the target light-emitting unit pit. At the same time, the barrier layer 50 uses a hydrophobic material. When there are more ink droplets entering the light-emitting unit pit, the surface tension caused by the hydrophobicity of the barrier layer 50 can ensure that the ink droplets remain in the light-emitting unit pit and avoid overflow.

[0061] In one embodiment, please refer to Figures 1 to 4 , Figure 4 which is another top view structural schematic diagram of the display panel provided by the embodiment of the present application. Different from the above embodiment, on the display panel 101 of this embodiment, in the second direction Y, the first pixel unit group 1 and the second pixel unit group 2 are alternately arranged. At the same time, in the first direction X, the first pixel unit group 1 and the second pixel unit group 2 are also alternately arranged. In this way, each first pixel unit group 1 is adjacent to four second pixel unit groups 2. Correspondingly, each second pixel unit group 2 is also adjacent to four first pixel unit groups 1. Moreover, in the first direction X, the adjacent first pixel unit group 1 and the second pixel unit group 2 are axisymmetric, and in the second direction Y, the adjacent first pixel unit group 1 and the second pixel unit group 2 are also axisymmetric. At this time, it is also possible to make the colors of two adjacent light-emitting units between two adjacent pixels the same.

[0062] Specifically, within the first pixel unit group 1 and the second pixel unit group 2, the shapes of the light-emitting units of three different colors of each pixel are all triangular. Each light-emitting unit includes two short sides and one long side, the length of the long side is greater than that of the short side, and within each pixel, the vertices formed by the two short sides of each light-emitting unit are close to each other, and the extension lines of the long sides of each light-emitting unit enclose a right triangle, that is, the shape of each pixel is a right triangle. Thus, the shapes of the first pixel unit group 1 and the second pixel unit group 2 formed by two pixels that are centrosymmetric to each other are both square, such as a rectangle or a square.

[0063] In addition, different from the above embodiments, within the same pixel, the area of the first-color light-emitting unit B is larger than the area of the second-color light-emitting unit R and larger than the area of the third-color light-emitting unit G. The first-color light-emitting unit B is a blue light-emitting unit, and the luminous efficiency and lifespan of the blue light-emitting material are worse than those of other color light-emitting materials. Therefore, within each pixel, setting a larger area of the blue light-emitting unit can improve the service life of the display panel 101. For other descriptions, please refer to the above embodiments and will not be elaborated here.

[0064] In one embodiment, please refer to Figures 1 to 5 , Figure 5 which is another top view structural schematic diagram of the display panel provided by the embodiment of the present application. Different from the above embodiments, within the display panel 102, in the first direction X, the adjacent first pixel unit group 1 and the second pixel unit group 2 are centrosymmetric. In the second direction Y, multiple first pixel unit groups 1 are arranged in an array; in the second direction Y, multiple second pixel unit groups 2 are also arranged in an array.

[0065] Specifically, each of the first pixel unit groups 1 includes a first pixel 20-1 and a second pixel 20-2, and the first pixel 20-1 and the second pixel 20-2 are centrosymmetric to each other. Each of the second pixel unit groups 2 includes a third pixel 20-3 and a fourth pixel 20-4, and the third pixel 20-3 and the fourth pixel 20-3 are centrosymmetric to each other. At the same time, in the first direction X, any adjacent first pixel unit group 1 and second pixel unit group 2 are also centrosymmetric to each other, and in the second direction Y, any adjacent first pixel unit group 1 and second pixel unit group 2 are also centrosymmetric to each other. Thus, the structures of the first pixel unit group 1 and the second pixel unit group 2 are completely the same, that is, the arrangement forms of the light-emitting units in the first pixel unit group 1 and the second pixel unit group 2 are completely the same. In this way, in addition to ensuring that the colors of adjacent light-emitting units between two adjacent pixels are the same, the process can be simplified. For other descriptions, please refer to the above embodiments and will not be elaborated here.

[0066] Based on the same inventive concept, an embodiment of the present application further provides an electronic device, and the electronic device includes a display panel 100 of one of the foregoing embodiments. The electronic device may be an electronic display product such as a mobile phone, a television, a tablet, a wearable display device, etc.

[0067] It can be known from the above embodiments that:

[0068] The present application provides a display panel and an electronic device. The display panel includes a substrate and a plurality of first pixel unit groups and a plurality of second pixel unit groups alternately arranged on the substrate in a first direction. Each of the first pixel unit groups and each of the second pixel unit groups includes two pixels that are centrosymmetric to each other. Each pixel includes at least three light-emitting units arranged at intervals in different colors. Between any two adjacent pixels, one light-emitting unit of one pixel has the same color as one adjacent light-emitting unit of the other pixel. By making the colors of adjacent light-emitting units between two adjacent pixels the same, the present application can avoid color mixing between pixels when printing the light-emitting units using an inkjet printing process, thereby solving the problem of color mixing between pixels existing in existing OLED devices.

[0069] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0070] The above has introduced the embodiments of the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that, comprising: a substrate; a plurality of first pixel unit groups and a plurality of second pixel unit groups alternately arranged on the substrate along a first direction. In the first direction, the adjacent first pixel unit group and the second pixel unit group are centrosymmetric. In a second direction, the first pixel unit groups and the second pixel unit groups are alternately arranged. In the second direction, the adjacent first pixel unit group and the second pixel unit group are centrosymmetric. Each of the first pixel unit groups and each of the second pixel unit groups includes two pixels that are centrosymmetric to each other; wherein, each of the pixels includes at least three light-emitting units of different colors arranged at intervals; in any two adjacent pixels, one light-emitting unit of one pixel has the same color as one adjacent light-emitting unit of the other pixel.

2. The display panel according to claim 1, characterized in that, in the first direction, two adjacent pixels are centrosymmetric; in the second direction, two adjacent pixels are centrosymmetric.

3. The display panel according to claim 2, characterized in that, the first pixel unit group includes a first pixel and a second pixel that are centrosymmetric to each other, and the second pixel unit group includes a third pixel and a fourth pixel that are centrosymmetric to each other; wherein, the first pixel has the same structure as the third pixel, the second pixel has the same structure as the fourth pixel, the first pixel is adjacent to the fourth pixel, the first pixel and the fourth pixel are centrosymmetric to each other, and the second pixel and the third pixel are centrosymmetric to each other.

4. The display panel according to claim 3, characterized in that, the first pixel unit group and the second pixel unit group have the same structure; wherein, the first pixel unit group is arranged in an array in the second direction, the second pixel unit group is arranged in an array in the second direction, and the first pixel unit group and the second pixel unit group are located in different rows.

5. The display panel according to any one of claims 1 to 4, characterized in that, the shapes of the three light-emitting units of different colors of each pixel are all triangular. Each light-emitting unit includes two short sides and one long side, the length of the long side is greater than the length of the short side, and in each pixel, the vertices formed by the two short sides of each light-emitting unit are close to each other.

6. The display panel according to claim 5, characterized in that, in each pixel, the extension lines of the long sides of each light-emitting unit enclose a right triangle, and the shapes of the first pixel unit group and the second pixel unit group are both square.

7. The display panel according to claim 5, characterized in that, the three light-emitting units of different colors are a first-color light-emitting unit, a second-color light-emitting unit, and a third-color light-emitting unit respectively. The first-color light-emitting unit is a blue light-emitting unit. In the same pixel, the area of the first-color light-emitting unit is greater than the area of the second-color light-emitting unit and greater than the area of the third-color light-emitting unit.

8. The display panel according to claim 5, wherein, it further comprises: a first electrode arranged in an array on the substrate; a pixel definition layer covering the substrate and the first electrode, and having a pixel opening formed corresponding to the first electrode, the pixel opening exposing the corresponding first electrode; each of the light-emitting units is disposed in one of the pixel openings; a barrier layer disposed on a side of the pixel definition layer away from the substrate and located between two adjacent light-emitting units of different colors.

9. The display panel according to claim 8, wherein, the material of the barrier layer is a hydrophobic material.

10. An electronic device, wherein, it comprises the display panel according to any one of claims 1 to 9.

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