Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a substrate; the isolation structure is arranged on one side of the substrate, and a plurality of isolation openings are defined by the isolation structure; the light-emitting film layer comprises a plurality of light-emitting elements, and the different light-emitting elements are located in the different isolation openings; wherein the plurality of isolation openings comprise a plurality of first isolation openings which are arranged in an array mode in the row direction and the column direction, and second isolation openings are distributed between every two adjacent first isolation openings in the first direction intersecting with the row direction and the column direction. The orthographic projections of the first isolation opening and the second isolation opening on the substrate comprise polygons. Through the design of the invention, the overlap resistance between the isolation structure and the light-emitting element can be reduced.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] With the development of display technology, display technology is constantly upgraded, and the market requirements for display effects are getting higher and higher. However, in the existing technology, the resistance of the light-emitting elements in the display panel is still relatively high. Summary of the invention

[0003] The present application provides a display panel and a display device, which can reduce the overlap resistance between an isolation structure and a light-emitting element in the display panel.

[0004] The present application provides a display panel, comprising: a substrate; an isolation structure, arranged on one side of the substrate, the isolation structure defining a plurality of isolation openings; a light-emitting film layer, comprising a plurality of light-emitting elements, different light-emitting elements being located in different isolation openings; wherein the plurality of isolation openings comprise a plurality of first isolation openings arranged in an array in a row direction and a column direction, and in a first direction intersecting both the row direction and the column direction, a second isolation opening is distributed between two adjacent first isolation openings, and the orthographic projections of the first isolation opening and the second isolation opening on the substrate both comprise polygons.

[0005] In one embodiment, the isolation structure includes a first end close to the substrate and a second end far from the substrate, and an orthographic projection of the first end on the substrate is located within an orthographic projection of the second end on the substrate.

[0006] Preferably, in the first direction, shapes of orthographic projections of two adjacent second isolation openings on the substrate are completely the same.

[0007] Preferably, in the first direction, sizes of orthographic projections of two adjacent second isolation openings on the substrate are completely the same.

[0008] Preferably, the isolation structure comprises a grid structure.

[0009] In one embodiment, in the first direction, the light emitting elements in two adjacent second isolation openings emit light of the same color.

[0010] Preferably, the angles between the first direction and the row direction and the column direction are all equal to 45°.

[0011] In one embodiment, in a second direction intersecting both the row direction and the column direction, a third isolation opening is distributed between two adjacent first isolation openings, and the orthographic projection of the third isolation opening on the substrate is a polygon, wherein the second direction intersects the first direction.

[0012] Preferably, the orthographic projection of the first isolation opening on the substrate includes a rectangle, the orthographic projection of the second isolation opening on the substrate includes a cross, and the orthographic projection of the third isolation opening on the substrate includes a cross.

[0013] Preferably, in the second direction, shapes of orthographic projections of two adjacent third isolation openings on the substrate are completely identical.

[0014] Preferably, in the second direction, sizes of orthographic projections of two adjacent third isolation openings on the substrate are completely the same.

[0015] Preferably, in the second direction, the light emitting elements in two adjacent third isolation openings emit light of the same color.

[0016] Preferably, the included angles between the second direction and the row direction and the column direction are both equal to 45°.

[0017] In one embodiment, center points of the second isolation opening and the third isolation opening distributed around the first isolation opening are four vertices of a virtual quadrilateral, respectively.

[0018] Preferably, the center point of the virtual quadrilateral coincides with the center point of the first isolation opening.

[0019] Preferably, the virtual quadrilateral comprises a rectangle.

[0020] Preferably, the second isolation openings and the third isolation openings in the same row have the same size along the column direction.

[0021] In one embodiment, an opening area of ​​the second isolation opening is different from an opening area of ​​the third isolation opening.

[0022] Preferably, the light-emitting elements emitting green light are distributed in the first isolation openings.

[0023] Preferably, the light emitting elements emitting blue light are distributed in the second isolation openings, and the light emitting elements emitting red light are distributed in the third isolation openings.

[0024] Preferably, an opening area of ​​the second isolation opening is larger than an opening area of ​​the third isolation opening.

[0025] In one embodiment, an opening area of ​​the second isolation opening is equal to an opening area of ​​the third isolation opening.

[0026] Preferably, the light emitting elements in the second isolation opening and the third isolation opening emit light of the same color.

[0027] Preferably, the light-emitting elements in the second isolation opening and the third isolation opening are both green light-emitting elements.

[0028] Preferably, in the row direction, the light emitting elements in two adjacent first isolation openings emit different colors of light, and in the column direction, the light emitting elements in two adjacent first isolation openings emit different colors of light.

[0029] Preferably, the light-emitting element in the first isolation opening is a red light-emitting element or a blue light-emitting element.

[0030] In one embodiment, the display panel further includes: a pixel definition layer, located between the isolation structure and the substrate, the pixel definition layer being provided with a plurality of pixel openings, the orthographic projections of different pixel openings on the substrate being located within the orthographic projections of different isolation openings on the substrate, and different light-emitting elements being located in different pixel openings, wherein the orthographic projection of the isolation opening on the substrate and the orthographic projection of the pixel opening located in the isolation opening on the substrate have the same type of shape.

[0031] In one embodiment, the light emitting element includes a first electrode, a light emitting material layer, and a second electrode which are sequentially stacked in a direction away from the substrate, wherein the second electrode is electrically connected to the isolation structure.

[0032] Preferably, the first electrode is an anode, and the second electrode is a cathode.

[0033] Preferably, the first distance is different from the second distance, wherein the first distance is the distance between the edge of the orthographic projection of the first electrode on the substrate in the row direction and the edge of the orthographic projection of the corresponding isolation opening on the substrate, and the second distance is the distance between the edge of the orthographic projection of the first electrode on the substrate in the column direction and the edge of the orthographic projection of the corresponding isolation opening on the substrate.

[0034] Preferably, in the row direction, at least part of the edge of the orthographic projection of the first electrode on the substrate is located between the orthographic projection of the corresponding isolation opening on the substrate and the orthographic projection of the corresponding pixel opening on the substrate, and in the column direction, the edge of the orthographic projection of the first electrode on the substrate is located on the side of the orthographic projection of the corresponding isolation opening on the substrate away from the orthographic projection of the corresponding pixel opening on the substrate.

[0035] In one embodiment, the isolation structure includes a first isolation layer and a second isolation layer stacked in sequence in a direction away from the substrate, and the orthographic projection of the first isolation layer on the substrate is located within the orthographic projection of the second isolation layer on the substrate.

[0036] Preferably, the isolation structure further comprises a third isolation layer located on a side of the first isolation layer away from the second isolation layer, and an orthographic projection of the third isolation layer on the substrate is located within an orthographic projection of the second isolation layer on the substrate.

[0037] Preferably, the material of the first isolation layer includes aluminum, the material of the second isolation layer includes titanium, and the material of the third isolation layer includes molybdenum.

[0038] The second aspect of the present application also provides a display panel, comprising: a substrate; an isolation structure, arranged on one side of the substrate, the isolation structure defining a plurality of isolation openings; a light-emitting film layer, comprising a plurality of light-emitting elements, different light-emitting elements being located in different isolation openings; wherein the plurality of isolation openings comprise a plurality of first isolation openings, second isolation openings and third isolation openings arranged in an array in a row direction and a column direction, the orthographic projection of the first isolation opening on the substrate comprises a rectangle, the orthographic projection of the second isolation opening on the substrate comprises a cross, and the orthographic projection of the third isolation opening on the substrate comprises a cross.

[0039] A third aspect of the present application further provides a display device, comprising a display panel as described in any of the above embodiments.

[0040] Different from the prior art, the beneficial effects of the present application are as follows: the display panel of the present application includes a substrate, an isolation structure and a light-emitting film layer, the isolation structure defines a plurality of isolation openings, the light-emitting elements in the light-emitting film layer are located in the isolation openings, the isolation openings include a plurality of first isolation openings arranged in an array in the row direction and the column direction, and in the first direction intersecting with both the row direction and the column direction, a second isolation opening is distributed between two adjacent first isolation openings, the orthographic projections of the first isolation opening and the second isolation opening on the substrate both include polygons, and the straight-edge design of the polygonal isolation openings increases the overlap length between the isolation structure and the second electrode, thereby improving the overlap effect between the isolation structure and the second electrode, thereby reducing the overlap resistance between the isolation structure and the light-emitting element. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0042] Figure 1 is a schematic structural diagram of a first embodiment of a display panel of the present application;

[0043] Figure 2 yes Figure 1 A schematic top view of an embodiment of a middle isolation structure;

[0044] Figure 3 is Figure 2 A schematic top view of an embodiment in which a light emitting element is disposed in an isolation opening of an isolation structure;

[0045] Figure 4 yes Figure 1 A schematic top view of another embodiment of the isolation structure;

[0046] Figure 5 is Figure 4 A schematic top view of an embodiment in which a light emitting element is disposed in an isolation opening of an isolation structure;

[0047] Figure 6 yes Figure 1 A schematic top view of an embodiment of an isolation structure and a pixel definition layer stack;

[0048] Figure 7 yes Figure 1 (Hidden light-emitting material layer and second electrode) A schematic top view of an embodiment;

[0049] Figure 8 yes Figure 7A schematic cross-sectional view along section line M to M';

[0050] Fig. 9 yes Figure 7 A schematic cross-sectional view along section line N to N';

[0051] Fig.10 is a structural schematic diagram of another display panel of the present application;

[0052] Fig.11 It is a schematic structural diagram of an embodiment of the display device of the present application. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0054] The contents of the isolation structure mentioned below are further described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 100935, PCT / CN2024 / 102785, PCT / CN2024 / 099419, PCT / CN2024 / 099072, and CN116685174A for reference.

[0055] See also Figure 1 and Figure 2 The present application provides a display panel 10, which includes a substrate 110, an isolation structure 120 and a light-emitting film layer 130. The isolation structure 120 is disposed on one side of the substrate 110, and the isolation structure 120 defines a plurality of isolation openings T; the light-emitting film layer 130 includes a plurality of light-emitting elements P, and different light-emitting elements P are located in different isolation openings T; wherein the plurality of isolation openings T include a plurality of first isolation openings T1 arranged in an array in a row direction X and a column direction Y, and in a first direction D1 intersecting both the row direction X and the column direction Y, a second isolation opening T2 is distributed between two adjacent first isolation openings T1, and the orthographic projections of the first isolation openings T1 and the second isolation openings T2 on the substrate 110 both include polygons.

[0056] Specifically, the isolation structure 120 includes a first end A1 close to the substrate 110 and a second end A2 far from the substrate 110 , and the orthographic projection of the first end A1 on the substrate 110 is located within the orthographic projection of the second end A2 on the substrate 110 .

[0057] Specifically, the light-emitting film layer 130 includes a plurality of light-emitting elements P, and the light-emitting element P includes a first electrode 131, a light-emitting material layer 132, and a second electrode 133 which are sequentially stacked in a direction away from the substrate 110. In the solution of the present application, an isolation structure is provided between two adjacent light-emitting elements P, and the conductive isolation structure 120 is overlapped with the second electrode 133 in the light-emitting element P, so as to apply a voltage to the second electrode 133. The isolation structure 120 is generally wide at the top and narrow at the bottom. During the preparation process, the functional layer in the light-emitting element P (the functional layer includes a hole injection layer, a hole transport layer, an electron blocking layer, a light-emitting material layer 132, a hole blocking layer, an electron transport layer, an electron injection layer and other film layers) can be firstly evaporated on the entire surface, and at the edge of the isolation structure 120, due to the presence of the step difference, the functional layer of the light-emitting element P will be disconnected at the edge of the isolation structure 120, so that the functional layer of the light-emitting element P can be completely in the isolation opening T, so that the preparation of the functional layer does not require a precision mask plate for alignment, which can reduce costs. The orthographic projection of the first end A1 of the isolation structure 120 on the substrate 110 is located within the orthographic projection of the second end A2 on the substrate 110, so that the second end A2 has a shielding effect, and the second end A2 can protect the film layer below it from being etched, thereby preventing the overlapping portion between the second electrode 133 and the isolation structure 120 from being etched.

[0058] Further, the isolation opening T of the present application includes a first isolation opening T1 arrayed in the row direction X and the column direction Y, and a second isolation opening T2 distributed in the first direction D1. It can be seen that the second isolation opening T2 and the first isolation opening T1 are alternately distributed in the first direction D1. The orthographic projections of the first isolation opening T1 and the second isolation opening T2 on the substrate 110 both include polygons, which can be triangles, quadrilaterals, hexagons or octagons, etc., that is, each side of the isolation structure 120 at the first isolation opening T1 and the second isolation opening T2 is a straight edge. For the isolation openings of the same area, the perimeter of the straight-sided isolation opening is greater than the perimeter of the arc-sided isolation opening. In this way, when the second electrode 133 overlaps with the isolation structure 120, the overlapping length is longer than that of the arc-sided design, and the overlapping effect is better. In addition, the straight-sided design can also reduce the overlapping resistance between the second electrode 133 and the isolation structure 120.

[0059] It should be noted that Figure 2The first direction D1 is only used as an example. In other implementations, the first direction D1 may also be other directions as long as it intersects with the row direction X and the column direction Y.

[0060] In one embodiment, see Figure 2 In the first direction D1, the shapes of the orthographic projections of two adjacent second isolation openings T2 on the substrate 110 are completely identical. This ensures that in the first direction D1, the second electrodes 133 in the second isolation openings T2 with the same shape have similar overlapping effects with the isolation structure 120, thereby reducing the difference in overlapping resistance.

[0061] In one embodiment, see Figure 2 In the first direction D1, the orthographic projections of two adjacent second isolation openings T2 on the substrate 110 are completely the same in size. This ensures that the overlap effect of the second electrode 133 and the isolation structure 120 in the second isolation openings T2 with completely the same shape and size in the first direction D1 is completely consistent.

[0062] In one embodiment, see Figure 2 In the first direction D1, the light emitting elements (not shown) in two adjacent second isolation openings T2 emit the same light color. By arranging light emitting elements with the same light emitting color in the second isolation openings T2 with the same shape, based on the consistent overlapping effect of the second electrode 133 and the isolation structure 120, the light emitting effects of the light emitting elements in the second isolation openings T2 are ensured to be consistent.

[0063] Of course, in some other embodiments, in the first direction, the shapes of two adjacent second isolation openings may be different, and in the first direction, the luminous colors of the light-emitting elements in two adjacent second isolation openings may be different.

[0064] In one embodiment, see Figure 2 The angles between the first direction D1 and the row direction X and the column direction Y are all equal to 45°. This arrangement can make the distance between the second isolation opening T2 and the two adjacent first isolation openings T1 equal, ensuring the uniformity of the distribution of the light emitting elements P.

[0065] In some other embodiments, the angle between the first direction D1 and the row direction X is 30° or 60°, etc. The present application does not impose any specific limitation on the angle between the first direction D1 and the row direction X or the column direction Y, as long as it intersects the row direction X and the column direction Y.

[0066] In one embodiment, see Figure 2In the second direction D2 intersecting both the row direction X and the column direction Y, a third isolation opening T3 is distributed between two adjacent first isolation openings T1, and the orthographic projection of the third isolation opening T3 on the substrate 110 includes a polygon, wherein the second direction D2 intersects the first direction D1.

[0067] Specifically, the second direction D2 intersects with the first direction D1, the row direction X and the column direction Y, the second direction D2 is different from the second direction D1, the third isolation opening T3 is distributed along the second direction D2, the shape of the orthographic projection of the third isolation opening T3 on the substrate 110, the shape of the orthographic projection of the first isolation opening T1 on the substrate 110, and the shape of the orthographic projection of the second isolation opening T2 on the substrate 110 all include polygons, and each side of the isolation structure 120 at the third isolation opening T3 is a straight side. Therefore, the overlapping effect between the second electrode 133 and the isolation structure 120 at the third isolation opening T3 is improved, thereby reducing the overlapping resistance between the second electrode 133 and the isolation structure 120.

[0068] In one embodiment, see Figure 2 The angles between the second direction D2 and the row direction X and the column direction Y are both equal to 45°, and the angles between the first direction D1 and the row direction X and the column direction Y are also equal to 45°, so that the spacing between the third isolation opening T3 and the two adjacent first isolation openings T1 can be equal, ensuring the uniformity of the distribution of the light-emitting elements.

[0069] In some other embodiments, the angle between the second direction D2 and the row direction X is 30° or 60°, etc. The present application does not impose any specific restrictions on the angle between the second direction D2 and the row direction X or the column direction Y, as long as it intersects the row direction X, the column direction Y and the second direction D2.

[0070] In one embodiment, see Figure 2 The orthographic projection of the first isolation opening T1 on the substrate 110 includes a rectangle, the orthographic projection of the second isolation opening T2 on the substrate 110 includes a cross, and the orthographic projection of the third isolation opening T3 on the substrate 110 includes a cross.

[0071] Specifically, the rectangular opening and the cross-shaped opening can ensure that all angles of the isolation opening T in the isolation structure 120 are right angles, and the straight sides of the isolation structure 120 plus the right-angle design can also ensure that the extension path of the isolation structure 120 in the row direction X and the column direction Y is the shortest, thereby reducing the area occupied by the isolation structure 120 in the entire display panel 10, reducing the transmission resistance, and can be used to increase the setting of the light-emitting element, that is, improving the arrangement density of the pixels.

[0072] Of course, in some other embodiments, the orthographic projections of the first isolation opening, the second isolation opening, and the third isolation opening on the substrate may also be other polygons. For example, the orthographic projections of the first isolation opening, the second isolation opening, and the third isolation opening on the substrate may all be octagons.

[0073] In one embodiment, see Figure 2 In the second direction D2, the shapes of the orthographic projections of two adjacent third isolation openings T3 on the substrate 110 are completely identical. This ensures that in the second direction D2, the second electrodes 133 in the third isolation openings T3 with the same shape have similar overlapping effects with the isolation structure 120, thereby reducing the difference in overlapping resistance.

[0074] In one embodiment, see Figure 2 In the second direction D2, the orthographic projections of two adjacent third isolation openings T3 on the substrate 110 are completely the same in size. This ensures that in the second direction D2, the overlapping effects of the second electrodes 133 and the isolation structure 120 in the third isolation openings T3 of the same size are completely consistent.

[0075] In one embodiment, see Figure 2 In the second direction D2, the light emitting elements (not shown) in two adjacent third isolation openings T3 emit the same light color. By arranging light emitting elements with the same light emitting color in the third isolation openings T3 with the same shape, based on the consistent overlapping effect of the second electrode 133 and the isolation structure 120, the light emitting effects of the light emitting elements in the third isolation openings T3 tend to be consistent.

[0076] Of course, in some other embodiments, in the second direction, the shapes of two adjacent third isolation openings may be different, and in the second direction, the luminous colors of the light emitting elements in two adjacent third isolation openings may be different.

[0077] In one embodiment, see Figure 2 The center points of the second isolation opening T2 and the third isolation opening T3 distributed around the first isolation opening T1 are the four vertices of the virtual quadrilateral C respectively.

[0078] Specifically, the second isolation openings T2 and the third isolation openings T3 are alternately distributed around the first isolation opening T1, the number of the second isolation openings T2 is 2, and the two second isolation openings T2 are distributed on both sides of the first isolation opening T1 along the first direction D1, and the number of the third isolation openings T3 is 2, and the two third isolation openings T3 are distributed on both sides of the first isolation opening T1 along the second direction D2. The center points of the second isolation openings T2 and the third isolation openings T3 constitute the four vertices of the virtual quadrilateral C, so it can be seen that at any position, the first isolation opening T1, the second isolation opening T2 and the third isolation opening T3 are adjacent to each other, so that the isolation openings T are arranged more closely, and the light-emitting elements P are arranged in the isolation openings T, thereby improving the arrangement density of the pixels.

[0079] It can be understood that in some other embodiments, the number of the second isolation openings T2 and the third isolation openings T3 distributed around the first isolation opening T1 may not be two.

[0080] In one embodiment, see Figure 2 , the center point of the virtual quadrilateral C coincides with the center point of the first isolation opening T1. In this way, the first isolation opening T1 can be centrally arranged relative to the second isolation opening T2 and the third isolation opening T3 around it, thereby ensuring that the distribution of the second isolation opening T2 and the third isolation opening T3 relative to the first isolation opening T1 is relatively uniform.

[0081] In one embodiment, see Figure 2 , the virtual quadrilateral C is a rectangle. In this way, the distance between the second isolation opening T2 and the third isolation opening T3 can be relatively uniform, thereby ensuring that the distribution of the first isolation opening T1, the second isolation opening T2 and the third isolation opening T3 is relatively uniform.

[0082] Of course, in some other implementations, the virtual quadrilateral may also be a parallelogram or an isosceles trapezoid, or the virtual quadrilateral may be an irregular quadrilateral.

[0083] In one embodiment, see Figure 2 , the sizes of the second isolation openings T2 and the third isolation openings T3 in the same row along the column direction Y are equal.

[0084] Specifically, the size H1 of the second isolation opening T2 along the column direction Y is equal to the size H2 of the third isolation opening T3 along the column direction Y. It can be understood that this can make the spacing between two adjacent rows in the isolation structure 120 equal, which can reduce the difficulty of manufacturing the isolation structure 120.

[0085] In one embodiment, see Figure 2, the opening area of ​​the second isolation opening T2 is not equal to the opening area of ​​the third isolation opening T3.

[0086] Specifically, light-emitting elements of different luminous colors usually have different areas due to differences in their luminous efficiencies, and the opening area of ​​the second isolation opening T2 is not equal to the opening area of ​​the third isolation opening T3. Therefore, light-emitting elements of different luminous colors are arranged in the second isolation opening T2 and the third isolation opening T3. For example, in this embodiment, by setting the size H1 of the second isolation opening T2 along the column direction Y and the size H2 of the third isolation opening T3 along the column direction Y to be equal, and setting the size W1 of the second isolation opening T2 along the row direction X and the size W1 of the third isolation opening T3 along the row direction X to be unequal, the opening area of ​​the second isolation opening T2 and the opening area of ​​the third isolation opening T3 can be made unequal. Of course, it can be understood that the design method of making the opening area of ​​the second isolation opening T2 and the opening area of ​​the third isolation opening T3 unequal can adjust the width of other sides.

[0087] In one embodiment, see Figure 3 , the first isolation opening T1 is distributed with a light emitting element G with a green light emitting color, the second isolation opening T2 is distributed with a light emitting element B with a blue light emitting color, and the third isolation opening T3 is distributed with a light emitting element R with a red light emitting color. That is to say, in this embodiment, light emitting elements P with different light emitting colors can be respectively arranged in the first isolation opening T1, the second isolation opening T2 and the third isolation opening T3. In addition, one pixel unit in this embodiment includes two green light emitting elements G, one blue light emitting element B and one red light emitting element R. The opening area of ​​the second isolation opening T2 is larger than the opening area of ​​the third isolation opening T3. Increasing the opening area of ​​the second isolation opening T2 can increase the light emitting area of ​​the blue light emitting element B, thereby ensuring the light emitting efficiency of the blue light emitting element B.

[0088] Of course, in some other embodiments, the light-emitting elements P of different luminous colors respectively disposed in the first isolation opening T1, the second isolation opening T2, and the third isolation opening T3 may also be disposed in other ways. The present application does not limit the specific arrangement of the light-emitting elements of a certain luminous color in the first isolation opening T1, the second isolation opening T2, and the third isolation opening T3.

[0089] In one embodiment, see Figure 4 The opening area of ​​the second isolation opening T2 is equal to the opening area of ​​the third isolation opening T3. That is, the second isolation opening T2 and the third isolation opening T3 have the same size in the row direction X and the column direction Y, which can make the preparation of the isolation structure 120 simpler.

[0090] In one embodiment, the light emitting elements P in the second isolation opening T2 and the third isolation opening T3 emit the same light color. Considering that the opening area of ​​the second isolation opening T2 is equal to the opening area of ​​the third isolation opening T3, the second isolation opening T2 and the third isolation opening T3 can be provided with light emitting elements P of the same light color.

[0091] In one embodiment, the light emitting elements P in two adjacent first isolation openings T1 have different light emitting colors in the row direction X, and the light emitting elements P in two adjacent first isolation openings T1 have different light emitting colors in the column direction Y. That is, in the row direction X and the column direction Y, the light emitting elements P in adjacent first isolation openings T1 have different light emitting colors.

[0092] In one embodiment, see Figure 5 The light emitting elements P in the second isolation opening T2 and the third isolation opening T3 are both green light emitting elements G, and the light emitting element P in the first isolation opening T1 is a red light emitting element R or a blue light emitting element B.

[0093] Specifically, the red light emitting elements R and the blue light emitting elements B are alternately arranged in the row direction X and the column direction Y. Although the red light emitting elements R and the blue light emitting elements B are both arranged in the first isolation opening T1, the light emitting areas of the red light emitting elements R and the blue light emitting elements B may not be equal. In addition, one pixel unit of this embodiment includes two green light emitting elements G, one blue light emitting element B and one red light emitting element R.

[0094] Of course, in some other embodiments, the light-emitting elements P of different luminous colors disposed in the first isolation opening T1, the second isolation opening T2, and the third isolation opening T3 may also be disposed in other ways. The present application does not limit the specific arrangement of the light-emitting elements of a certain luminous color in the first isolation opening T1, the second isolation opening T2, and the third isolation opening T3.

[0095] In one embodiment, see Figure 1 and Figure 6 The display panel 10 further includes a pixel definition layer 140, which is located between the isolation structure 120 and the substrate 110. The pixel definition layer 140 is provided with a plurality of pixel openings K, and the orthographic projections of different pixel openings K on the substrate 110 are located in the orthographic projections of different isolation openings T on the substrate 110, and different light-emitting elements P are located in different pixel openings K, wherein the orthographic projection of the isolation opening T on the substrate 110 and the orthographic projection of the pixel opening K located in the isolation opening T on the substrate 110 have the same type of shape.

[0096] Specifically, the pixel definition layer 140 is provided with a plurality of pixel openings K, and a light-emitting element P is arranged in the pixel opening K. In order to prevent the isolation structure 120 from shading the light-emitting element P, the size of the pixel opening K is smaller than the size of the isolation opening T, that is, the pixel opening K is retracted in the isolation opening T. Since the present application can reduce the lap resistance between the second electrode 133 and the isolation structure 120 by designing the straight edge of the isolation structure K, similarly, the shape of the pixel opening K can also be the same as the shape of the isolation opening T, which can also improve the aperture ratio of the pixel opening K.

[0097] Of course, in some other implementations, the shape of the pixel opening may not be the same as that of the isolation opening, and the shape of the pixel opening may be set to be circular or elliptical, etc.

[0098] In one embodiment, see Figure 1 , the light-emitting element P includes a first electrode 131, a light-emitting material layer 132, and a second electrode 133 which are sequentially stacked in a direction away from the substrate 110, wherein the second electrode 133 is electrically connected to the isolation structure 120. Therefore, the second electrodes 133 of all the light-emitting elements P can be electrically connected through the isolation structure 120, thereby connecting to the same power supply voltage. The second electrode 133 is also provided with a tail portion 1331 electrically connected to the isolation structure 120, and the tail portion 1331 can increase the overlap area between the second electrode 133 and the isolation structure 120, thereby improving the overlap effect between the second electrode 133 and the isolation structure 120, and reducing the overlap resistance between the second electrode 133 and the isolation structure 120.

[0099] In one embodiment, see Figure 7 , the first distance is equal to or different from the second distance, wherein the first distance is the distance between the edge of the orthographic projection of the first electrode 131 on the substrate 110 in the row direction X and the edge of the orthographic projection of the corresponding isolation opening T on the substrate 110, and the second distance is the distance between the edge of the orthographic projection of the first electrode 131 on the substrate 110 in the column direction Y and the edge of the orthographic projection of the corresponding isolation opening T on the substrate 110.

[0100] Specifically, the shape of the orthographic projection of the pixel opening K on the substrate 110 is the same as the shape of the orthographic projection of the corresponding isolation opening T on the substrate 110, but the distance between the edge of the pixel opening K and the edge of the isolation opening T in the row direction X and the column direction Y can be adjusted, that is, the distance can be the same or different, then the distance between the edge of the first electrode 131 of the light-emitting element P and the edge of the isolation opening T in the row direction X and the column direction Y can also be the same or different.

[0101] In one embodiment, see Figure 7 , Figure 8 and Fig. 9In the row direction X, at least part of the edge of the orthographic projection of the first electrode 131 on the substrate 110 is located between the orthographic projection of the corresponding isolation opening T on the substrate 110 and the orthographic projection of the corresponding pixel opening K on the substrate 110, and in the column direction Y, the edge of the orthographic projection of the first electrode 131 on the substrate 110 is located on the side of the orthographic projection of the corresponding isolation opening T on the substrate 110 away from the orthographic projection of the corresponding pixel opening K on the substrate 110.

[0102] Specifically, for example, in the row direction X, since the distance between the edge of the orthographic projection of the pixel opening K on the substrate 110 and the orthographic projection of the corresponding isolation structure G on the substrate 110 can be set differently, then in the row direction X, the corresponding first electrode 131 has a larger adjustment space and may not extend to the bottom of the isolation opening T, so that the area covered by the first electrode 131 is reduced, so that there is a gap between the first electrode 131 and the isolation structure 120, and the gap serves as a light-transmitting area to improve the transmittance of the area, while in the column direction Y, since the distance between the edge of the orthographic projection of the pixel opening K on the substrate 110 and the orthographic projection of the corresponding isolation structure G on the substrate 110 can be set the same, the corresponding first electrode 131 has a smaller adjustment space and can choose to extend to the bottom of the isolation structure 120.

[0103] Of course, it is important to understand that Figure 7 As just one example, in other implementations, the spacing between the edge of the pixel opening and the edge of the isolation opening can be adjusted, and the relative position of the edge of the first electrode and the edge of the isolation opening can also be adjusted. At the same time, the present application is not limited to the row direction, and the present application does not make specific limitations on this.

[0104] In one embodiment, see Figure 1 The first electrode 131 is an anode, and the second electrode 133 is a cathode. The anode is opaque, and the cathode is transmissive.

[0105] Of course, in some other embodiments, the first electrode is a cathode and the second electrode is an anode.

[0106] In one embodiment, see Fig.10 The isolation structure 120 includes a first isolation layer 121 and a second isolation layer 122 stacked in sequence in a direction away from the substrate 110 , and the orthographic projection of the first isolation layer 121 on the substrate 110 is located within the orthographic projection of the second isolation layer 122 on the substrate 110 .

[0107] Specifically, the first isolation layer 121 of the isolation structure 120 constitutes the first end A1, the second isolation layer 122 of the isolation structure 120 constitutes the second end A2, the material of the first isolation layer 121 includes aluminum, and the material of the second isolation layer 122 includes titanium. The second electrode 133 overlaps the second isolation layer 122, and the first isolation layer 121 has a shielding function, which is used to protect the overlap between the second electrode 133 and the second isolation layer 122 from being etched.

[0108] In one embodiment, see Figure 1 The isolation structure 120 further includes a third isolation layer 123, which is located on the side of the first isolation layer 121 away from the second isolation layer 122. The orthographic projection of the third isolation layer 123 on the substrate 110 is located within the orthographic projection of the second isolation layer 122 on the substrate 110. The material of the third isolation layer 123 includes molybdenum. Since aluminum is more easily etched than molybdenum and titanium during side engraving, the middle first isolation layer 121 will shrink relative to the second isolation layer 122 and the third isolation layer 123, so that the film layer in the light-emitting film layer 130 can be disconnected by the isolation structure 120 during evaporation.

[0109] In one embodiment, see Figure 2 The isolation structure 120 is a grid structure. The mesh of the grid structure is the isolation opening T of the isolation structure 120. The isolation structure 120 of the grid structure is overlapped with the second electrode 133, so that all the light-emitting elements P of the display panel 10 are electrically connected through the isolation structure P.

[0110] In one embodiment, the display panel 10 may further include a packaging layer, a touch layer, an organic adhesive layer, a cover plate, or other film layers.

[0111] In a second aspect of the present application, another display panel 10 is provided, which includes a substrate 110, an isolation structure 120 and a light-emitting film layer 130, wherein the isolation structure 120 is arranged on one side of the substrate 110, and the isolation structure 120 defines a plurality of isolation openings T; the light-emitting film layer 130 includes a plurality of light-emitting elements P, and different light-emitting elements P are located in different isolation openings T; wherein the plurality of isolation openings T include a plurality of first isolation openings T1, a second isolation opening T2 and a third isolation opening T3 arranged in an array in a row direction and a column direction, the orthographic projection of the first isolation opening on the substrate 110 includes a rectangle, the orthographic projection of the second isolation opening T2 on the substrate 110 includes a cross, and the orthographic projection of the third isolation opening T3 on the substrate 110 includes a cross.

[0112] In one embodiment, the light emitting elements in the first isolation opening T1 , the light emitting elements in the second isolation opening T2 , and the light emitting elements in the third isolation opening T3 all emit different colors.

[0113] See also Fig.11 In a third aspect, the present application provides a display device 20, which includes a display panel 10 as in any of the above embodiments.

[0114] Specifically, the display device 20 can be any electronic device such as a notebook, a desktop computer, a tablet computer, a mobile phone, a smart watch, a virtual display terminal, etc., and is not limited here.

[0115] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, characterized in that: include: substrate; An isolation structure, disposed on one side of the substrate, wherein the isolation structure defines a plurality of isolation openings; The light-emitting film layer comprises a plurality of light-emitting elements, and different light-emitting elements are located in different isolation openings; Among them, the multiple isolation openings include multiple first isolation openings arranged in an array in the row direction and the column direction, and in the first direction intersecting with both the row direction and the column direction, a second isolation opening is distributed between two adjacent first isolation openings, and the orthographic projections of the first isolation opening and the second isolation opening on the substrate both include polygons.

2. The display panel according to claim 1, characterized in that: The isolation structure comprises a first end close to the substrate and a second end far from the substrate, wherein an orthographic projection of the first end on the substrate is located within an orthographic projection of the second end on the substrate; Preferably, in the first direction, the shapes of the orthographic projections of two adjacent second isolation openings on the substrate are completely identical; Preferably, in the first direction, the sizes of the orthographic projections of two adjacent second isolation openings on the substrate are completely the same; Preferably, the isolation structure comprises a grid structure.

3. The display panel according to claim 2, characterized in that: In the first direction, the light emitting elements in two adjacent second isolation openings emit the same light color; Preferably, the angles between the first direction and the row direction and the column direction are all equal to 45°.

4. The display panel according to claim 2, characterized in that: In a second direction intersecting both the row direction and the column direction, a third isolation opening is distributed between two adjacent first isolation openings, and the orthographic projection of the third isolation opening on the substrate includes a polygon, wherein the second direction intersects the first direction.

5. The display panel according to claim 4, characterized in that: The orthographic projection of the first isolation opening on the substrate includes a rectangle, the orthographic projection of the second isolation opening on the substrate includes a cross, and the orthographic projection of the third isolation opening on the substrate includes a cross; Preferably, in the second direction, the shapes of the orthographic projections of two adjacent third isolation openings on the substrate are completely the same; Preferably, in the second direction, sizes of orthographic projections of two adjacent third isolation openings on the substrate are completely the same.

6. The display panel according to claim 5, characterized in that: In the second direction, the light emitting elements in two adjacent third isolation openings emit the same light color; Preferably, the included angles between the second direction and the row direction and the column direction are both equal to 45°.

7. The display panel according to claim 4, characterized in that: The center points of the second isolation opening and the third isolation opening distributed around the first isolation opening are respectively four vertices of a virtual quadrilateral; Preferably, the center point of the virtual quadrilateral coincides with the center point of the first isolation opening; Preferably, the virtual quadrilateral comprises a rectangle.

8. The display panel according to claim 7, characterized in that: The second isolation openings and the third isolation openings in the same row have the same size along the column direction.

9. The display panel according to claim 7, characterized in that: The opening area of ​​the second isolation opening is not equal to the opening area of ​​the third isolation opening; Preferably, the light-emitting elements emitting green light are distributed in the first isolation opening; Preferably, the light emitting elements emitting blue light are distributed in the second isolation openings, and the light emitting elements emitting red light are distributed in the third isolation openings.

10. The display panel according to claim 9, characterized in that: An opening area of ​​the second isolation opening is greater than an opening area of ​​the third isolation opening.

11. The display panel according to claim 7, characterized in that: The opening area of ​​the second isolation opening is equal to the opening area of ​​the third isolation opening.

12. The display panel according to claim 11, characterized in that: The light emitting colors of the light emitting elements in the second isolation opening and the third isolation opening are the same; Preferably, the light-emitting elements in the second isolation opening and the third isolation opening are both green light-emitting elements.

13. The display panel according to claim 12, characterized in that: In the row direction, the light emitting elements in two adjacent first isolation openings emit different light colors, and in the column direction, the light emitting elements in two adjacent first isolation openings emit different light colors; Preferably, the light-emitting element in the first isolation opening is a red light-emitting element or a blue light-emitting element.

14. The display panel according to claim 1, characterized in that: The display panel further includes: A pixel definition layer is located between the isolation structure and the substrate, and the pixel definition layer is provided with a plurality of pixel openings, wherein the orthographic projections of different pixel openings on the substrate are located within the orthographic projections of different isolation openings on the substrate, and different light-emitting elements are located in different pixel openings, wherein the orthographic projection of the isolation opening on the substrate and the orthographic projection of the pixel opening located in the isolation opening on the substrate have the same type of shape.

15. The display panel according to claim 14, characterized in that: The light emitting element comprises a first electrode, a light emitting material layer and a second electrode which are sequentially stacked in a direction away from the substrate, wherein the second electrode is electrically connected to the isolation structure; Preferably, the first electrode is an anode, and the second electrode is a cathode.

16. The display panel according to claim 15, characterized in that: The first distance is different from the second distance, wherein the first distance is the distance between the edge of the orthographic projection of the first electrode on the substrate in the row direction and the edge of the orthographic projection of the corresponding isolation opening on the substrate, and the second distance is the distance between the edge of the orthographic projection of the first electrode on the substrate in the column direction and the edge of the orthographic projection of the corresponding isolation opening on the substrate.

17. The display panel according to claim 15, characterized in that: In the row direction, the edge of at least part of the orthographic projection of the first electrode on the substrate is located between the orthographic projection of the corresponding isolation opening on the substrate and the orthographic projection of the corresponding pixel opening on the substrate, and in the column direction, the edge of the orthographic projection of the first electrode on the substrate is located on the side of the orthographic projection of the corresponding isolation opening on the substrate away from the orthographic projection of the corresponding pixel opening on the substrate.

18. The display panel according to claim 1, characterized in that: The isolation structure includes a first isolation layer and a second isolation layer stacked in sequence in a direction away from the substrate, and the orthographic projection of the first isolation layer on the substrate is located within the orthographic projection of the second isolation layer on the substrate. Preferably, the isolation structure further comprises a third isolation layer located on a side of the first isolation layer away from the second isolation layer, and the orthographic projection of the third isolation layer on the substrate is located within the orthographic projection of the second isolation layer on the substrate; Preferably, the material of the first isolation layer includes aluminum, the material of the second isolation layer includes titanium, and the material of the third isolation layer includes molybdenum.

19. A display panel, characterized in that: include: substrate; An isolation structure, disposed on one side of the substrate, wherein the isolation structure defines a plurality of isolation openings; The light-emitting film layer comprises a plurality of light-emitting elements, and different light-emitting elements are located in different isolation openings; Among them, the multiple isolation openings include a plurality of first isolation openings, second isolation openings and third isolation openings arranged in an array in the row direction and the column direction, the orthographic projection of the first isolation opening on the substrate includes a rectangle, the orthographic projection of the second isolation opening on the substrate includes a cross, and the orthographic projection of the third isolation opening on the substrate includes a cross.

20. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 19.

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