Display panel, display device and preparation method of display panel

Abstract

The invention discloses a display panel, a display device and a preparation method of the display panel. The display panel comprises a substrate, an isolation structure, a first electrode and a light-emitting layer. The first electrode comprises a main body part, and the shortest distances between the two sides of at least part of the main body part in the first direction and the isolation structure are different, that is, at least part of the main body part shifts in the first direction relative to the center of the isolation opening, so that the shielding of the main body part on the area with higher transmittance in the isolation opening is reduced; the area of the area with the larger transmittance in the isolation opening is improved, the transmittance of the area where the isolation opening is located is improved, the overall transmittance and the display effect of the display panel are improved, and therefore the use performance of an OLED display product is improved.

Description

Technical Field

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

[0002] In the process of traditional display panel preparation, the graphicization of luminous pixels is usually achieved through a fine metal mask (FMM). FMM technology is mature and has rich experience in mass production. However, FMM technology also has problems such as limited precision, high development cost, and long development cycle. The non-fine metal mask technology eliminates the limitations of traditional OLED processes on display screen size, resolution and other screen performance, and has the advantages of high performance, full-domain size, and agile delivery. Patents CN118251982A, CN116648095A, CN117062489A, CN118742138A, CN118678783A, CN118660598A, CN118675450A, CN118824188A, and CN118781966A record the relevant content of the non-fine metal mask technology for reference. Summary of the invention

[0003] The embodiments of the present application provide a display panel, a display device and a method for manufacturing a display panel, aiming to improve the performance of OLED display products.

[0004] A first aspect of the present application provides a display panel, comprising: a substrate; a plurality of first electrodes located on one side of the substrate, the first electrode comprising a main body; an isolation structure located on one side of the substrate, the isolation structure enclosing a plurality of isolation openings, the portion of the isolation openings on the orthographic projection of the substrate being located outside the orthographic projection of the corresponding first electrode on the substrate, and the orthographic projection of the main body on the substrate being located within the orthographic projection of the corresponding isolation opening on the substrate; a light-emitting layer comprising a plurality of light-emitting units, the light-emitting units being located on a side of the corresponding first electrode away from the substrate, and at least a portion of the light-emitting units being located within the corresponding isolation opening; wherein the shortest distance between the two sides of at least a portion of the main body in the first direction and the isolation structure is different.

[0005] According to the implementation scheme of the first aspect of the present application, the main body has a plurality of first edges and a plurality of second edges alternately connected, including two first edges that are oppositely arranged and have different shortest distances from the isolation structure in the first direction, and two second edges that are oppositely arranged and have different shortest distances from the isolation structure in the second direction, the distance between the first center and the two second edges is equal, and the first direction and the second direction intersect.

[0006] According to any of the aforementioned embodiments of the first aspect of the present application, at least part of the isolation opening includes a first area and a second area distributed in a first direction, and the ratio of the area of ​​the orthographic projection of the main body in the first area to the area of ​​the first area is greater than the ratio of the area of ​​the orthographic projection of the main body in the second area to the area of ​​the first area.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes: an array layer located between the substrate and the plurality of first electrodes, the metal density of the array layer located below the orthographic projection of the first area being less than the metal density of the array layer located below the orthographic projection of the second area.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the shortest distance between the main body located in the first area and the isolation structure in the first direction is the first distance, and the shortest distance between the main body located in the second area and the isolation structure in the first direction is the second distance, and the first distance is greater than the second distance.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the difference between the first distance and the second distance is greater than or equal to 4 μm.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the first electrode also includes an extension portion, which extends from the main body portion toward the isolation structure along the second direction, and the shortest distance between a side of the main body portion close to the extension portion in the second direction and the isolation structure is a third distance, and the shortest distance between a side of the main body portion far from the extension portion in the second direction and the isolation structure is a fourth distance, and the fourth distance is greater than the third distance.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes: a pixel definition layer located on one side of the substrate, the pixel definition layer including a pixel defining portion and a plurality of pixel openings formed by the pixel defining portion, and the pixel openings are connected to the corresponding isolation openings.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, part of the main body is exposed by the pixel opening.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the main body on the substrate.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the shortest distances between the two sides of the pixel opening in the first direction and the isolation structure are the same, and / or the shortest distances between the two sides of the pixel opening in the second direction and the isolation structure are the same.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the shortest distances between at least part of the pixel opening and the isolation structure on both sides in the first direction are different.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel opening has multiple third sides and multiple fourth sides that are alternately connected, including two third sides that are relatively arranged in the first direction and have different shortest distances from the isolation structure, and two fourth sides that are relatively arranged in the second direction and have different shortest distances from the isolation structure.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, at least part of the isolation opening includes a first region and a second region distributed in a first direction, and the ratio of the area of ​​the orthographic projection of the pixel opening in the first region to the area of ​​the first region is greater than the ratio of the area of ​​the orthographic projection of the pixel opening in the second region to the area of ​​the first region.

[0018] According to any of the foregoing embodiments of the first aspect of the present application, the shortest distance between the pixel opening located in the first area and the isolation structure in the first direction is the fifth distance, and the shortest distance between the pixel opening located in the second area and the isolation structure in the first direction is the sixth distance, and the fifth distance is greater than the sixth distance.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the difference between the fifth distance and the sixth distance is greater than or equal to 4 μm.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, the first electrode also includes an extension portion, which extends from the main portion toward the isolation structure along the second direction, and the shortest distance between the side of the pixel opening close to the extension portion in the second direction and the isolation structure is a seventh distance, and the shortest distance between the side of the pixel opening far from the extension portion in the second direction and the isolation structure is an eighth distance, and the eighth distance is greater than the seventh distance.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting unit includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, and the shortest distances between the two sides of the main body corresponding to at least two of the first light-emitting unit, the second light-emitting unit and the third light-emitting unit and the isolation structure in the first direction are different.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the light emitting colors of the first light emitting unit, the second light emitting unit and the third light emitting unit are different.

[0023] According to any of the foregoing embodiments of the first aspect of the present application, a plurality of first light-emitting units are arranged along a first direction to form a first pixel column, the second light-emitting units and the third light-emitting units are alternately arranged along the first direction to form a second pixel column, and the first pixel column and the second pixel column are alternately arranged along the second direction.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection area of ​​the third light-emitting unit on the substrate is greater than or equal to the orthographic projection area of ​​the first light-emitting unit on the substrate, and / or the orthographic projection area of ​​the third light-emitting unit on the substrate is greater than or equal to the orthographic projection area of ​​the second light-emitting unit on the substrate.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, the shortest distances between the main body of the first electrode corresponding to the second light-emitting unit and the third light-emitting unit and the isolation structure on both sides in the first direction are different.

[0026] According to any of the foregoing embodiments of the first aspect of the present application, the shortest distance between the main body corresponding to the first light-emitting unit and the isolation structure on both sides in the first direction is the same, and the shortest distance between the main body corresponding to the first light-emitting unit and the isolation structure on both sides in the second direction is the same.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the area of ​​the isolation openings corresponding to the second light-emitting unit and the third light-emitting unit is greater than the area of ​​the isolation opening corresponding to the first light-emitting unit.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first layer and a second layer located on the side of the first layer facing away from the substrate, and the surface of the first layer on the side away from the substrate is located within the orthographic projection of the substrate, and the surface of the second layer on the side close to the substrate is within the orthographic projection of the substrate.

[0029] According to any of the aforementioned embodiments of the first aspect of the present application, the first layer includes a conductive material.

[0030] According to any of the aforementioned embodiments of the first aspect of the present application, the second layer includes a conductive material or an insulating material.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, the first layer and the second layer both include metal materials, and the materials of the first layer and the second layer are different.

[0032] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure also includes a third layer located on the side of the first layer facing the substrate, and the surface of the first layer close to the substrate is located within the orthographic projection of the substrate, and the surface of the third layer away from the substrate is within the orthographic projection of the substrate.

[0033] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes: a second electrode layer located on the side of the light-emitting layer away from the substrate, the second electrode layer includes a plurality of second electrodes located in the plurality of isolation openings, and the second electrodes are electrically connected to the isolation structure.

[0034] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the second electrode on the substrate.

[0035] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting unit and the isolation structure are spaced apart.

[0036] A second aspect of the present application provides a display panel, which further includes: a substrate; a pixel definition layer located on one side of the substrate, the pixel definition layer including a pixel defining portion and a plurality of pixel openings formed by the pixel defining portion; an isolation structure located on one side of the substrate, the isolation structure enclosing a plurality of isolation openings, the pixel openings being connected to the corresponding isolation openings, and at least some of the pixel openings having a different shortest distance between the two sides of the isolation structure in a first direction; a light-emitting layer located on one side of the substrate, the light-emitting layer including a plurality of light-emitting units, and at least some of the light-emitting units being located within the pixel openings.

[0037] According to an implementation of the second aspect of the present application, at least part of the isolation opening includes a first region and a second region distributed in a first direction, and the ratio of the area of ​​the orthographic projection of the pixel opening in the first region to the area of ​​the first region is greater than the ratio of the area of ​​the orthographic projection of the pixel opening in the second region to the area of ​​the first region.

[0038] An embodiment of a third aspect of the present application provides a display device, which includes a display panel according to any of the above embodiments.

[0039] An embodiment of a fourth aspect of the present application provides a method for preparing a display panel, the method comprising:

[0040] A plurality of first electrodes are prepared on a substrate, wherein the first electrodes include a main body;

[0041] An isolation structure is prepared on the substrate, wherein the isolation structure encloses a plurality of isolation openings, wherein the orthographic projection of the isolation openings on the substrate is located outside the orthographic projection of the corresponding first electrode on the substrate, and the orthographic projection of the main body on the substrate is located within the orthographic projection of the corresponding isolation opening on the substrate;

[0042] A light-emitting layer is prepared on a substrate, the light-emitting layer comprising a plurality of light-emitting units, the light-emitting units being located on a side of a corresponding first electrode facing away from the substrate, at least a portion of the light-emitting units being located within a corresponding isolation opening, wherein at least a portion of the main body has a different shortest distance between both sides of the isolation structure in a first direction.

[0043] According to the display panel of the embodiment of the present application, the display panel includes a substrate, an isolation structure, a first electrode and a light-emitting layer. When preparing the light-emitting layer, the light-emitting layer has a large drop at the edge of the isolation structure, which is difficult to connect, and thus breaks. The light-emitting layer breaks to form light-emitting units that are disconnected from each other and located in the isolation opening. There is no need to use a precision mask plate, which can reduce the development and use of precision masks and reduce preparation costs. The first electrode includes a main body, and at least part of the main body has a different shortest distance between the two sides of the isolation structure in the first direction, that is, at least part of the main body is offset in the first direction relative to the center of the isolation opening, so as to reduce the main body from blocking the area with a higher transmittance in the isolation opening, increase the area of ​​the area with a higher transmittance in the isolation opening, increase the transmittance of the area where the isolation opening is located, increase the overall transmittance and display effect of the display panel, and thus improve the performance of the OLED display product. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0045] Figure 1 is a partial top view schematic diagram of a display panel provided in an embodiment of the present application;

[0046] Figure 2 is a partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0047] Figure 3 yes Figure 1 A partial enlarged view of

[0048] Figure 4 In another embodiment Figure 1 A partial enlarged view of

[0049] Figure 5 is a partial top view schematic diagram of a display panel in another embodiment;

[0050] Figure 6 yes Figure 5 A partial enlarged view of

[0051] Figure 7 is a partial top view schematic diagram of a display panel in another embodiment;

[0052] Figure 8 yes Figure 7 A partial enlarged view of

[0053] Fig. 9 In another embodiment Figure 7 A partial enlarged view of

[0054] Fig.10 is a partial top view schematic diagram of a display panel in yet another embodiment;

[0055] Fig.11 yes Fig.10 A partial enlarged view of

[0056] Fig.12 is a partial top view schematic diagram of a display panel in yet another embodiment;

[0057] Fig.13 is a partial cross-sectional view of a display panel in another embodiment;

[0058] Fig.14 It is a flow chart of a method for preparing a display panel provided in an embodiment of the present application.

[0059] Description of reference numerals:

[0060] 10. Display panel;

[0061] 100. Substrate;

[0062] 200, isolation structure; 210, first layer; 220, second layer; 230, third layer; 240, isolation opening; 241, first region; 242, second region;

[0063] 300, light-emitting layer; 301, first pixel column; 302, second pixel column; 310, light-emitting unit; 320, first light-emitting unit; 330, second light-emitting unit; 340, third light-emitting unit;

[0064] 400, second electrode layer; 410, second electrode;

[0065] 500, pixel definition layer; 510, pixel defining portion; 520, pixel opening; 521, third side; 522, fourth side; 530, first electrode; 540, main body; 541, first side; 542, second side; 550, extension portion;

[0066] D1, first distance; D2, second distance; D3, third distance; D4, fourth distance; D5, fifth distance; D6, sixth distance; D7, seventh distance; D8, eighth distance;

[0067] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0068] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details.

[0069] Embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel. Embodiments of the display panel, the display device, and the method for manufacturing a display panel are described below in conjunction with the accompanying drawings.

[0070] An embodiment of the present application provides a display panel, which may be an organic light emitting diode (OLED) display panel.

[0071] Please also read Figure 1 and Figure 2 , Figure 1 is a partial top view schematic diagram of a display panel provided in an embodiment of the present application; Figure 2 It is a partial cross-sectional view of a display panel provided in an embodiment of the present application.

[0072] like Figure 1 and Figure 2 As shown, the first embodiment of the present application provides a display panel 10, which includes: a substrate 100; a plurality of first electrodes 530, which are located on one side of the substrate 100, and the first electrode 530 includes a main body 540, and the orthographic projection of the main body 540 on the substrate 100 is located within the orthographic projection of the isolation opening 240 on the substrate 100; an isolation structure 200, which is located on one side of the substrate 100, and the isolation structure 200 encloses the isolation opening 240, and the orthographic projection of the isolation opening 240 on the substrate 100 is located opposite to the isolation structure 200. The corresponding first electrode 530 is outside the orthographic projection of the substrate 100, and the orthographic projection of the main body 540 on the substrate 100 is located within the orthographic projection of the corresponding isolation opening 240 on the substrate 100; the light-emitting layer 300 includes a plurality of light-emitting units 310, and the light-emitting units 310 are located on the side of the corresponding first electrode 530 away from the substrate 100, and at least part of the light-emitting units 310 are located in the isolation opening 240; wherein, at least part of the main body 540 has a different shortest distance between the two sides of the isolation structure 200 in the first direction X.

[0073] According to the display panel 10 of the embodiment of the present application, the display panel 10 includes a substrate 100, an isolation structure 200, a first electrode 530 and a light-emitting layer 300. When preparing the light-emitting layer 300, the light-emitting layer 300 has a large drop at the edge of the isolation structure 200, which is difficult to connect, and thus breaks. The light-emitting layer 300 breaks to form light-emitting units 310 that are disconnected from each other and located in the isolation opening 240. There is no need to use a precision mask plate, which can reduce the development and use of precision masks and reduce the preparation cost. The first electrode 530 includes a main body 540, and at least part of the main body 540 has a different shortest distance between the two sides of the isolation structure 200 in the first direction X, that is, at least part of the main body 540 is offset relative to the center of the isolation opening 240 in the first direction X, so as to reduce the shielding of the main body 540 on the area with a larger transmittance in the isolation opening 240, increase the area of ​​the area with a larger transmittance in the isolation opening 240, increase the transmittance of the area where the isolation opening 240 is located, increase the overall transmittance and display effect of the display panel 10, and thus improve the performance of the OLED display product.

[0074] In the related art, the shortest distance between the main body 540 of the first electrode 530 and the isolation structure 200 is the same on both sides in the first direction X, and the shortest distance between the main body 540 and the isolation structure 200 is the same on both sides in the second direction Y, which is equivalent to the orthographic projection of the center of the main body 540 of the first electrode 530 on the substrate 100 coincides with the orthographic projection of the center of the isolation opening 240 on the substrate 100. In this case, the transmittance in the isolation opening 240 is low. In order to improve the transmittance of the isolation opening 240, the main body 540 of the first electrode 530 is offset, for example, the main body 540 of the first electrode 530 is offset along the first direction X, so as to reduce the shielding of the main body 540 on the area with higher transmittance in the isolation opening 240, and increase the area of ​​the area with higher transmittance in the isolation opening 240.

[0075] There are many ways to set the substrate 100, where the substrate 100 is a base, or the substrate 100 includes a buffer layer and a support plate on a side away from the base.

[0076] Optionally, the main body 540 contacts the light emitting unit 310 .

[0077] See also Figure 3 , Figure 3 yes Figure 1 A partial enlarged view of .

[0078] like Figure 3As shown, in some optional embodiments, the main body 540 has a plurality of first edges 541 and a plurality of second edges 542 that are alternately connected, and includes two first edges 541 that are oppositely arranged and have different shortest distances from the isolation structure 200 in the first direction X, and includes two second edges 542 that are oppositely arranged and have different shortest distances from the isolation structure 200 in the second direction Y, and the first direction X and the second direction Y intersect.

[0079] In these optional embodiments, at least a portion of the main body 540 is offset relative to the center of the isolation opening 240 in the first direction X and the second direction Y, thereby further reducing the shielding of the light-transmitting area in the isolation opening 240 by the first electrode 530, increasing the area of ​​the light-transmitting area in the isolation opening 240, increasing the transmittance of the area where the isolation opening 240 is located, increasing the overall transmittance and display effect of the display panel 10, and thus improving the performance of the OLED display product.

[0080] Optionally, the first side 541 is a straight side or a curved side. Optionally, the second side 542 is a straight side or a curved side.

[0081] See also Figure 4 , Figure 4 In another embodiment Figure 1 A partial enlarged view of .

[0082] like Figures 1 to 4 As shown, in some optional embodiments, at least part of the isolation opening 240 includes a first region 241 and a second region 242 distributed in a first direction X, and a ratio of an area of ​​an orthographic projection of the main body 540 in the first region 241 to an area of ​​the first region 241 is greater than a ratio of an area of ​​an orthographic projection of the main body 540 in the second region 242 to an area of ​​the first region 241.

[0083] Optionally, the display panel 10 also includes: an array layer (not shown in the figure), located between the substrate 100 and the plurality of first electrodes 530, the metal density of the array layer located below the orthographic projection of the first region 241 being less than the metal density of the array layer located below the orthographic projection of the second region 242, such that the transmittance of the first region 241 is greater than the transmittance of the second region 242.

[0084] In these optional embodiments, the degree of shielding of the first region 241 by the main body 540 is less than that of shielding of the second region 242, thereby reducing the shielding of the first region 241 with higher transmittance in the isolation opening 240 by the main body 540 of the first electrode 530, so that a larger area of ​​the first region 241 with higher transmittance is exposed, thereby improving the transmittance of the area where the isolation opening 240 is located.

[0085] Optionally, the shortest distance between the main body 540 located in the first area 241 and the isolation structure 200 in the first direction X is a first distance D1, and the shortest distance between the main body 540 located in the second area 242 and the isolation structure 200 in the first direction X is a second distance D2, and the first distance D1 is greater than the second distance D2.

[0086] In these optional embodiments, the first distance D1 is greater than the second distance D2, that is, the main body 540 of the first electrode 530 is offset toward one side of the second region 242 in the first direction X, thereby reducing the shielding of the main body 540 of the first electrode 530 on the first region 241 with higher transmittance in the isolation opening 240, so that the first region 241 with higher transmittance is exposed in a larger area, thereby improving the transmittance of the area where the isolation opening 240 is located.

[0087] Optionally, the orthographic projection of the first region 241 on the substrate 100 overlaps with the orthographic projection of the main body 540 on the substrate 100 , or the orthographic projection of the first region 241 on the substrate 100 is located outside the orthographic projection of the main body 540 on the substrate 100 .

[0088] Optionally, the orthographic projection of the second area 242 on the substrate 100 overlaps with the orthographic projection of the main body 540 on the substrate 100 .

[0089] In some optional embodiments, the difference between the first distance D1 and the second distance D2 is greater than or equal to 4 μm. For example, the difference between the first distance D1 and the second distance D2 is 4 μm, 6 μm, 8 μm or 10 μm. When the difference between the first distance D1 and the second distance D2 is 4 μm, it is equivalent to that the first center 543 is offset by 2 μm toward one side of the second region 242.

[0090] In these optional embodiments, the difference between the first distance D1 and the second distance D2 is greater than or equal to 4 μm, that is, the offset of the main body 540 toward the second region 242 is greater than or equal to 2 μm, ensuring that more first regions 241 will not be blocked by the main body 540 of the first electrode 530, and the exposed area of ​​the first region 241 with a higher transmittance is larger, thereby improving the transmittance of the region where the isolation opening 240 is located. It can also improve the problem that the transmittance of the isolation opening 240 is not significantly improved after the first electrode 530 is offset along the first direction X due to the small difference between the first distance D1 and the second distance D2.

[0091] See also Figure 5 and Figure 6 , Figure 5 is a partial top view schematic diagram of a display panel in another embodiment; Figure 6 yes Figure 5 A partial enlarged view of .

[0092] like Figure 5 and Figure 6 As shown, in some optional embodiments, the first electrode 530 also includes an extension portion 550, which extends from the main body portion 540 toward the isolation structure 200 along the second direction Y, and the shortest distance between the side of the main body portion 540 close to the extension portion 550 in the second direction Y and the isolation structure 200 is a third distance D3, and the shortest distance between the side of the main body portion 540 far from the extension portion 550 in the second direction Y and the isolation structure 200 is a fourth distance D4, and the fourth distance D4 is greater than the third distance D3.

[0093] In these optional embodiments, the fourth distance D4 is greater than the third distance D3, and in the second direction Y, the main body 540 is offset toward one side of the extension portion 550, the length of the extension portion 550 in the second direction Y is reduced, and the overall distribution area of ​​the first electrode 530 in the isolation opening 240 is reduced, so that the area of ​​the light-transmitting region in the isolation opening 240 is increased, thereby improving the transmittance of the region where the isolation opening 240 is located. Optionally, the main body 540 is offset toward one side of the second region 242, and / or the extension portion 550 is offset toward one side of the second region 242.

[0094] Optionally, the orthographic projection of the extension portion 550 on the substrate 100 is located within the orthographic projection of the second region 242 on the substrate 100 .

[0095] like Figure 2 As shown, in some optional embodiments, the display panel 10 further includes: a pixel definition layer 500, located on one side of the substrate 100, the pixel definition layer 500 includes a pixel defining portion 510 and a plurality of pixel openings 520 formed by the pixel defining portion 510, and the pixel openings 520 are connected to the corresponding isolation openings 240.

[0096] In these optional embodiments, the pixel defining portion 510 of the pixel defining layer 500 encloses a pixel opening 520 to set the light emitting unit 310 and realize normal light emission of the light emitting unit 310. In addition, the pixel defining portion 510 defines the setting area of ​​each light emitting unit 310 to reduce the cross-color defect between each light emitting unit 310.

[0097] Optionally, part of the main body 540 is exposed by the pixel opening 520 , so that the first electrode 530 is in contact with the light emitting unit 310 to drive the light emitting unit 310 to emit light.

[0098] Optionally, the orthographic projection of the pixel opening 520 on the substrate 100 is located within the orthographic projection of the main body 540 on the substrate 100, so that the pixel opening 520 is completely covered by the main body 540 of the first electrode 530, thereby increasing the exposed area of ​​the first electrode 530 from the pixel opening 520 and improving the driving effect of the first electrode 530 on the light-emitting unit 310.

[0099] In some optional embodiments, the shortest distance between the pixel opening 520 and the isolation structure 200 on both sides in the first direction X is the same, and / or the shortest distance between the pixel opening 520 and the isolation structure 200 on both sides in the second direction Y is the same.

[0100] In these optional embodiments, the pixel opening 520 is not offset relative to the isolation opening 240, and at least a portion of the main body 540 is offset relative to the center of the isolation opening 240 in the first direction X, so as to reduce the obstruction of the main body 540 on the area with higher transmittance in the isolation opening 240, increase the area of ​​the area with higher transmittance in the isolation opening 240, increase the transmittance of the area where the isolation opening 240 is located, increase the overall transmittance and display effect of the display panel 10, and thus improve the performance of the OLED display product.

[0101] See also Figure 7 , Figure 7 FIG. 4 is a partial top view of a display panel in yet another embodiment.

[0102] like Figure 7 As shown, in some optional embodiments, the shortest distances between at least part of the pixel opening 520 and the isolation structure 200 on two sides in the first direction X are different.

[0103] In these optional embodiments, at least part of the pixel openings 520 are offset relative to the center of the isolation opening 240 in the first direction X, and the main body 540 of the first electrode 530 corresponding to the pixel opening 520 is offset relative to the center of the isolation opening 240 in the first direction X, so as to reduce the obstruction of the light-transmitting area in the isolation opening 240 by the first electrode 530, increase the area of ​​the light-transmitting area in the isolation opening 240, increase the transmittance of the area where the isolation opening 240 is located, increase the overall transmittance and display effect of the display panel 10, and thereby improve the performance of the OLED display product.

[0104] See also Figure 7 and Figure 8 , Figure 8 yes Figure 7 A partial enlarged view of .

[0105] like Figure 7 and Figure 8 As shown, in some optional embodiments, the pixel opening 520 has alternating third sides 521 and fourth sides 522, including two third sides 521 that are relatively arranged and have different shortest distances from the isolation structure 200 in the first direction X, and two fourth sides 522 that are relatively arranged and have different shortest distances from the isolation structure 200 in the second direction Y.

[0106] Optionally, the third side 521 is a straight side or a curved side. Optionally, the fourth side 522 is a straight side or a curved side.

[0107] In these optional embodiments, at least part of the pixel openings 520 are offset in the second direction Y relative to the center of the isolation opening 240, and the main body 540 of the first electrode 530 corresponding to the pixel opening 520 is offset in the second direction Y relative to the center of the isolation opening 240, so as to reduce the obstruction of the light-transmitting area in the isolation opening 240 by the first electrode 530, increase the area of ​​the light-transmitting area in the isolation opening 240, increase the transmittance of the area where the isolation opening 240 is located, increase the overall transmittance and display effect of the display panel 10, and thereby improve the performance of the OLED display product.

[0108] See also Fig. 9 , Fig. 9 In another embodiment Figure 7 A partial enlarged view of .

[0109] like Figures 7 to 9 As shown, in some optional embodiments, at least part of the isolation opening 240 includes a first region 241 and a second region 242 distributed in a first direction X, and a ratio of an area of ​​an orthographic projection of the pixel opening 520 on the first region 241 to an area of ​​the first region 241 is greater than a ratio of an area of ​​an orthographic projection of the pixel opening 520 on the second region 242 to an area of ​​the first region 241.

[0110] In these optional embodiments, the ratio of the area of ​​the orthographic projection of the pixel opening 520 on the first region 241 to the area of ​​the first region 241 is greater than the ratio of the area of ​​the orthographic projection of the pixel opening 520 on the second region 242 to the area of ​​the first region 241, so that the ratio of the area of ​​the orthographic projection of the main body 540 corresponding to the pixel opening 520 on the first region 241 to the area of ​​the first region 241 is greater than the ratio of the area of ​​the orthographic projection of the main body 540 corresponding to the pixel opening 520 on the second region 242 to the area of ​​the first region 241, the degree of shielding of the main body 540 on the first region 241 is less than the degree of shielding of the second region 242, and the shielding of the main body 540 of the first electrode 530 on the first region 241 with higher transmittance in the isolation opening 240 is reduced, so that the area of ​​the first region 241 with higher transmittance is exposed more, thereby improving the transmittance of the area where the isolation opening 240 is located.

[0111] Optionally, the shortest distance between the pixel opening 520 located in the first area 241 and the isolation structure 200 in the first direction X is a fifth distance D5, and the shortest distance between the pixel opening 520 located in the second area 242 and the isolation structure 200 in the first direction X is a sixth distance D6, and the fifth distance D5 is greater than the sixth distance D6.

[0112] In these optional embodiments, the fifth distance D5 is greater than the sixth distance D6, that is, the pixel opening 520 is offset toward one side of the second region 242 in the first direction X, and the first electrode 530 corresponding to the pixel opening 520 is offset in the same manner along the first direction X, thereby reducing the shielding of the main body 540 of the first electrode 530 on the first region 241 with higher transmittance in the isolation opening 240, so that the first region 241 with higher transmittance is exposed in a larger area, thereby improving the transmittance of the area where the isolation opening 240 is located.

[0113] In some optional embodiments, the difference between the fifth distance D5 and the sixth distance D6 is greater than or equal to 4 μm. For example, the difference between the fifth distance D5 and the sixth distance D6 is 4 μm, 6 μm, 8 μm or 10 μm. When the difference between the fifth distance D5 and the sixth distance D6 is 4 μm, it is equivalent to that the second center 523 is offset by 2 μm toward one side of the second region 242.

[0114] In these optional embodiments, the difference between the fifth distance D5 and the sixth distance D6 is greater than or equal to 4 μm, that is, the offset of the pixel opening 520 toward the second region 242 is greater than or equal to 2 μm, and the first electrode 530 corresponding to the pixel opening 520 is offset toward the second region 242, ensuring that more first regions 241 will not be blocked by the main body 540 of the first electrode 530, and the exposed area of ​​the first region 241 with a higher transmittance is larger, thereby improving the transmittance of the region where the isolation opening 240 is located. It can also improve the problem that the transmittance of the isolation opening 240 is not significantly improved after the first electrode 530 is offset along the first direction X due to the small difference between the fifth distance D5 and the sixth distance D6.

[0115] Please also read Fig.10 and Fig.11 , Fig.10 is a partial top view schematic diagram of a display panel in yet another embodiment; Fig.11 yes Fig.10 A partial enlarged view of .

[0116] like Fig.10 and Fig.11 As shown, in some optional embodiments, the first electrode 530 also includes an extension portion 550, which extends from the main body 540 toward the isolation structure 200 along the second direction Y, and the shortest distance between the side of the pixel opening 520 close to the extension portion 550 in the second direction Y and the isolation structure 200 is a seventh distance D7, and the shortest distance between the side of the pixel opening 520 away from the extension portion 550 in the second direction Y and the isolation structure 200 is an eighth distance D8, and the eighth distance D8 is greater than the seventh distance D7.

[0117] In these optional embodiments, the eighth distance D8 is greater than the seventh distance D7, and in the second direction Y, the pixel opening 520 is offset toward one side of the extension portion 550, and the main body 540 corresponding to the pixel opening 520 is offset toward one side of the extension portion 550. The length of the extension portion 550 in the second direction Y is reduced, and the overall distribution area of ​​the first electrode 530 in the isolation opening 240 is reduced, so that the area of ​​the light-transmitting region in the isolation opening 240 is increased, thereby improving the transmittance of the area where the isolation opening 240 is located.

[0118] See also Fig.12 , Fig.12 FIG. 1 is a partial top view of a display panel 10 in another embodiment.

[0119] like Figures 1 to 12 As shown, in some optional embodiments, the light-emitting unit 310 includes a first light-emitting unit 320, a second light-emitting unit 330 and a third light-emitting unit 340, and the shortest distances between the main body 540 corresponding to at least two of the first light-emitting unit 320, the second light-emitting unit 330 and the third light-emitting unit 340 and the isolation structure 200 on both sides in the first direction X are different. For example, the shortest distances between the main body 540 of the first electrode 530 corresponding to the first light-emitting unit 320 and the third light-emitting unit 340 and the isolation structure 200 on both sides in the first direction X are different, or the second light-emitting unit The shortest distances between the main body 540 of the first electrode 530 corresponding to the second light-emitting unit 330 and the third light-emitting unit 340 and the isolation structure 200 on both sides in the first direction X are different, or the shortest distances between the main body 540 of the first electrode 530 corresponding to the second light-emitting unit 330 and the first light-emitting unit 320 and the isolation structure 200 on both sides in the first direction X are different, or the shortest distances between the main body 540 of the first electrode 530 corresponding to the first light-emitting unit 320, the second light-emitting unit 330 and the third light-emitting unit 340 and the isolation structure 200 on both sides in the first direction X are different.

[0120] The main body portion 540 corresponding to the light emitting unit 310 refers to the main body portion 540 of the first electrode 530 that contacts the light emitting unit 310 .

[0121] In these optional embodiments, the main body 540 corresponding to at least two of the first light-emitting unit 320, the second light-emitting unit 330 and the third light-emitting unit 340 is offset in the first direction X relative to the center of the isolation opening 240 to reduce the shading of the main body 540 on the area with higher transmittance in the isolation opening 240, increase the area of ​​the area with higher transmittance in the isolation opening 240, increase the transmittance of the isolation opening 240 where at least two of the first light-emitting unit 320, the second light-emitting unit 330 and the third light-emitting unit 340 are located, increase the overall transmittance and display effect of the display panel 10, and thereby improve the performance of the OLED display product.

[0122] Optionally, the first light emitting unit 320 , the second light emitting unit 330 and the third light emitting unit 340 have different light emitting colors. For example, the first light emitting unit 320 is a green light emitting unit 310 , the second light emitting unit 330 is a red light emitting unit 310 , and the third light emitting unit 340 is a blue light emitting unit 310 .

[0123] Optionally, multiple first light-emitting units 320 are arranged along the first direction X to form a first pixel column 301, the second light-emitting units 330 and the third light-emitting units 340 are alternately arranged along the first direction X to form a second pixel column 302, and the first pixel column 301 and the second pixel column 302 are alternately arranged along the second direction Y.

[0124] In some optional embodiments, the orthographic projection area of ​​the third light-emitting unit 340 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the first light-emitting unit 320 on the substrate 100, and / or the orthographic projection area of ​​the third light-emitting unit 340 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the second light-emitting unit 330 on the substrate 100.

[0125] The orthographic projection area of ​​the third light-emitting unit 340 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the first light-emitting unit 320 on the substrate 100; or, the orthographic projection area of ​​the third light-emitting unit 310 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the second light-emitting unit 330 on the substrate 100; or, the orthographic projection area of ​​the third light-emitting unit 340 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the first light-emitting unit 320 on the substrate 100, and the orthographic projection area of ​​the third light-emitting unit 340 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the second light-emitting unit 330 on the substrate 100.

[0126] In these optional embodiments, the area of ​​the third light-emitting unit 340 is set larger, which can increase the service life of the third light-emitting unit 340 and avoid the problem of the brightness of the third light-emitting unit 340 decaying too quickly, resulting in a decrease in the display effect of the display panel 10.

[0127] In some optional embodiments, the shortest distances between the main body 540 of the first electrode 530 corresponding to the second light emitting unit 330 and the third light emitting unit 340 and the isolation structure 200 on both sides in the first direction X are different.

[0128] In these optional embodiments, the main body 540 corresponding to the second light-emitting unit 330 and the third light-emitting unit 340 is offset in the first direction X relative to the center of the isolation opening 240 to reduce the shading of the main body 540 on the area with higher transmittance in the isolation opening 240, increase the area of ​​the area with higher transmittance in the isolation opening 240, increase the transmittance of the isolation opening 240 where the second light-emitting unit 330 and the third light-emitting unit 340 are located, increase the overall transmittance and display effect of the display panel 10, and thereby improve the performance of the OLED display product.

[0129] Optionally, the shortest distances between the main body 540 of the first electrode 530 corresponding to the second light emitting unit 330 and the third light emitting unit 340 and the isolation structure 200 on both sides in the second direction Y are different.

[0130] Optionally, the shortest distances between the pixel openings 520 corresponding to the second light emitting unit 330 and the third light emitting unit 340 and the isolation structure 200 on both sides in the first direction X are different.

[0131] Optionally, the shortest distances between the pixel openings 520 corresponding to the second light emitting unit 330 and the third light emitting unit 340 and the isolation structure 200 on both sides in the second direction Y are different.

[0132] Optionally, the shortest distance between the main body 540 corresponding to the first light-emitting unit 320 and the isolation structure 200 on both sides in the first direction X is the same. Optionally, the shortest distance between the main body 540 corresponding to the first light-emitting unit 320 and the isolation structure 200 on both sides in the second direction Y is the same. The shortest distance between the main body 540 corresponding to the first light-emitting unit 320 and the isolation structure 200 on both sides in the second direction Y is the same, and the shortest distance between the main body 540 corresponding to the first light-emitting unit 320 and the isolation structure 200 on both sides in the second direction Y is the same, and the first electrode 530 corresponding to the first light-emitting unit 320 does not shift relative to the center of the isolation opening 240, thereby avoiding the problem that the isolation opening 240 where the first light-emitting unit 320 is located is small in area, and the first electrode 530 of the first light-emitting unit 320 is shifted, resulting in a reduction in the light-emitting area of ​​the first light-emitting unit 320.

[0133] Optionally, the shortest distance between the pixel opening 520 corresponding to the first light emitting unit 320 and the isolation structure 200 on both sides in the first direction X is the same. Optionally, the shortest distance between the pixel opening 520 corresponding to the first light emitting unit 320 and the isolation structure 200 on both sides in the second direction Y is the same.

[0134] In some optional embodiments, the area of ​​the isolation opening 240 corresponding to the second light emitting unit 330 and the third light emitting unit 340 is greater than the area of ​​the isolation opening 240 corresponding to the first light emitting unit 320 .

[0135] Optionally, the shortest distance between the orthographic projection of the pixel opening 520 corresponding to the second light-emitting unit 330 and the third light-emitting unit 340 on the substrate 100 and the orthographic projection of the isolation opening 240 on the substrate 100 is greater than the shortest distance between the orthographic projection of the pixel opening 520 corresponding to the first light-emitting unit 320 on the substrate 100 and the orthographic projection of the isolation opening 240 on the substrate 100.

[0136] In these optional embodiments, the orthographic projection area of ​​the isolation opening 240 where the second light-emitting unit 330 and the third light-emitting unit 340 are located on the substrate 100 is relatively large, and the distance between the orthographic projection of the pixel opening 520 corresponding to the second light-emitting unit 330 and the third light-emitting unit 340 on the substrate 100 and the orthographic projection of the isolation opening 240 on the substrate 100 is relatively large, so that after the first electrodes 530 corresponding to the second light-emitting unit 330 and the third light-emitting unit 340 are offset relative to the isolation opening 240, the orthographic projections of the pixel openings 520 of the second light-emitting unit 330 and the third light-emitting unit 340 on the substrate 100 are located within the orthographic projection of the isolation opening 240 on the substrate 100, that is, the light-emitting areas of the second light-emitting unit 330 and the third light-emitting unit 340 are not affected.

[0137] like Figure 2 As shown, in some optional embodiments, the isolation structure 200 includes a first layer 210 and a second layer 220 located on the side of the first layer 210 facing away from the substrate 100, and the surface of the first layer 210 on the side away from the substrate 100 is located in the orthographic projection of the substrate 100, and the surface of the second layer 220 on the side close to the substrate 100 is within the orthographic projection of the substrate 100.

[0138] In these optional embodiments, the isolation structure 200 includes a first layer 210 and a second layer 220 located on the side of the first layer 210 away from the substrate 100. The first layer 210 and the second layer 220 are stacked to form the isolation structure 200. The surface of the first layer 210 arranged close to the substrate 100 on the side away from the substrate 100 is located within the orthographic projection of the substrate 100, and the surface of the second layer 220 on the side close to the substrate 100 is within the orthographic projection of the substrate 100. The area of ​​the second layer 220 is larger than the area of ​​the first layer 210. The second layer 220 covers the surface of the first layer 210 close to the second layer 220. At this time, the first layer 210 is recessed relative to the second layer 220 in a direction away from the isolation opening 240. When preparing the light-emitting layer 300, a large step is generated at the edge of the isolation structure 200 of the light-emitting layer 300, and the first layer 210 is concave relative to the second layer 220. The light-emitting layer 300 is difficult to connect at the edge of the isolation structure 200, and thus breaks. The light-emitting layer 300 breaks to form light-emitting units 310 that are disconnected from each other, thereby reducing crosstalk of carriers in the light-emitting layer 300 and improving the display effect of the display panel 10. In addition, the light-emitting unit 310 can be prepared without using a precision mask plate, which can reduce the development and use of precision masks and reduce preparation costs.

[0139] Optionally, the first layer 210 includes a conductive material, for example, the first layer 210 includes a non-metallic conductive material or a metallic conductive material.

[0140] In some optional embodiments, the second layer 220 includes a conductive material or an insulating material.

[0141] In these optional embodiments, the second layer 220 includes a conductive material, for example, the second layer 220 includes a non-metallic conductive material or a metallic conductive material. When the second layer 220 is a non-metallic conductive material or an insulating material, the second layer 220 is difficult to be etched during wet etching of the first layer 210 using an etching solution, so that the first layer 210 is more easily concavely arranged relative to the second layer 220.

[0142] In some optional embodiments, both the first layer 210 and the second layer 220 include metal materials, and the materials of the first layer 210 and the second layer 220 are different.

[0143] In these optional embodiments, when both the first layer 210 and the second layer 220 are made of metal materials, the first layer 210 may be wet-etched with an etching solution, and the etching rate of the second layer 220 may be set to be lower than the etching rate of the first layer 210 by setting the etching solution. Since the etching rate of the first layer 210 is relatively high, when the etching solution is used for wet etching, even if the second layer 220 is etched to a certain extent, the first layer 210 is etched faster, so that the first layer 210 is set concave relative to the second layer 220.

[0144] See also Fig.13 , Fig.13 is a partial cross-sectional view of a display panel in another embodiment.

[0145] like Fig.13 As shown, in some optional embodiments, the isolation structure 200 also includes a third layer 230 located on the side of the first layer 210 facing the substrate 100, and the surface of the first layer 210 close to the substrate 100 is located in the orthographic projection on the substrate 100, and the surface of the third layer 230 away from the substrate 100 is within the orthographic projection of the substrate 100.

[0146] In these optional embodiments, since the etching rate of the first layer 210 is relatively fast, the waste generated by etching is relatively large and easily enters other positions of the display panel 10, thereby causing adverse effects. After the third layer 230 is provided, the first layer 210 can be well attached to the third layer 230, and the generated etching waste falls on the third layer 230, which is easy to clean.

[0147] Optionally, the light emitting layer 300 includes an electron injection layer (EIL), an electron transport layer (ETL), a light emitting material layer, a hole injection layer (HIL) and a hole transport layer (HTL).

[0148] In some optional embodiments, the display panel 10 further includes: a second electrode layer 400 located on the side of the light-emitting layer 300 facing away from the substrate 100 , the second electrode layer 400 including a plurality of second electrodes 410 located in the plurality of isolation openings 240 , and the second electrodes 410 are electrically connected to the isolation structure 200 .

[0149] In these optional embodiments, the isolation structure 200 separates the second electrode layer 400 to form mutually spaced second electrodes 410, and the mutually spaced second electrodes 410 are electrically connected through the isolation structure 200 to form a whole-surface electrode, thereby ensuring the normal light emission of the light-emitting unit 310. One of the second electrode 410 and the first electrode 530 serves as the anode of the light-emitting unit 310, and the other serves as the cathode of the light-emitting unit 310. The embodiment of the present application is described by taking the first electrode 530 as the anode of the light-emitting unit 310 and the second electrode 410 as the cathode of the light-emitting unit 310 as an example.

[0150] In some optional embodiments, the orthographic projection of the light emitting unit 310 on the substrate 100 is located within the orthographic projection of the first electrode 530 on the substrate 100 .

[0151] In these optional embodiments, the orthographic projection of the light-emitting unit 310 on the substrate 100 is located within the orthographic projection of the first electrode 530 on the substrate 100, that is, the first electrode 530 is arranged to cover the light-emitting unit 310 to serve as an electrode of the light-emitting unit 310, thereby ensuring normal light emission of the light-emitting unit 310 and improving the display effect of the display panel 10.

[0152] Optionally, the light-emitting unit 310 and the isolation structure 200 are spaced apart, that is, the light-emitting units 310 are spaced apart from each other, thereby reducing the crosstalk of carriers between the light-emitting units 310 and improving the cross-color problem of the light-emitting units 310.

[0153] like Figures 7 to 13 As shown, the second embodiment of the present application provides a display panel 10, and the display panel 10 also includes: a substrate 100; a pixel definition layer 500, located on one side of the substrate 100, the pixel definition layer 500 includes a pixel defining portion 510 and a plurality of pixel openings 520 formed by the pixel defining portion 510; an isolation structure 200, located on one side of the substrate 100, the isolation structure 200 encloses a plurality of isolation openings 240, the pixel openings 520 are connected to the corresponding isolation openings 240, and at least part of the pixel openings 520 have different shortest distances between the two sides of the isolation structure 200 in the first direction X; a light-emitting layer 300, located on one side of the substrate 100, the light-emitting layer 300 includes a plurality of light-emitting units 310, and at least part of the light-emitting units 310 are located in the pixel openings 520.

[0154] According to the display panel 10 of the embodiment of the present application, the display panel 10 includes a substrate 100, an isolation structure 200, a pixel definition layer 500 and a light-emitting layer 300. When preparing the light-emitting layer 300, the light-emitting layer 300 has a large drop at the edge of the isolation structure 200, which is difficult to connect, and thus breaks. The light-emitting layer 300 breaks to form light-emitting units 310 that are disconnected from each other and located in the isolation opening 240. There is no need to use a precision mask plate, which can reduce the development and use of precision masks and reduce the preparation cost. The pixel defining portion 510 of the pixel definition layer 500 encloses a pixel opening 520 to set the light-emitting unit 310 and realize normal light emission of the light-emitting unit 310. In addition, the pixel defining portion 510 defines the setting area of ​​each light-emitting unit 310 to reduce the cross-color defects between each light-emitting unit 310. At least part of the pixel opening 520 is offset relative to the center of the isolation opening 240 in the first direction X, and the main body 540 of the first electrode 530 corresponding to the pixel opening 520 is offset relative to the center of the isolation opening 240 in the first direction X, so as to reduce the shielding of the light-transmitting area in the isolation opening 240 by the first electrode 530, increase the area of ​​the light-transmitting area in the isolation opening 240, increase the transmittance of the area where the isolation opening 240 is located, increase the overall transmittance and display effect of the display panel 10, and thus improve the performance of the OLED display product.

[0155] The structural design in this embodiment can be applied to other display panels 10 , and the specific selection can be made according to actual conditions, and this application does not impose any specific restrictions on it.

[0156] The embodiment of the third aspect of the present application also provides a display device, including the display panel 10 of any one of the first and second aspects. Since the display device provided by the embodiment of the third aspect of the present application includes the display panel 10 of any one of the first and second aspects, the display device provided by the embodiment of the third aspect of the present application has the beneficial effects of the display panel 10 of any one of the first and second aspects, which will not be described in detail here.

[0157] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0158] See also Fig.14 , Fig.14 It is a flow chart of a method for preparing a display panel provided in an embodiment of the present application.

[0159] like Fig.14 As shown, an embodiment of the fourth aspect of the present application provides a method for preparing a display panel 10, the method comprising:

[0160] Step S01 : preparing a plurality of first electrodes 530 on a substrate 100 , wherein the first electrodes 530 include a main body 540 .

[0161] Step S02: Prepare an isolation structure 200 on the substrate 100, the isolation structure 200 encloses a plurality of isolation openings 240, the orthographic projection of the isolation openings 240 on the substrate 100 is located outside the orthographic projection of the corresponding first electrode 530 on the substrate 100, and the orthographic projection of the main body 540 on the substrate 100 is located within the orthographic projection of the corresponding isolation openings 240 on the substrate 100.

[0162] Step S03: Prepare a light-emitting layer 300 on the substrate 100, the light-emitting layer 300 includes a plurality of light-emitting units 310, the light-emitting unit 310 is located on the side of the corresponding first electrode 530 away from the substrate 100, at least part of the light-emitting unit 310 is located in the corresponding isolation opening 240, wherein at least part of the main body 540 has a different shortest distance between the isolation structure 200 and both sides in the first direction X.

[0163] According to the preparation method of the embodiment of the present application, a first electrode 530 is prepared on a substrate 100 by step S01. An isolation structure 200 is prepared on the substrate 100 by step S02. A light-emitting layer 300 is prepared by step S03. When preparing the light-emitting layer 300, a large drop is generated at the edge of the isolation structure 200 of the light-emitting layer 300, making it difficult to connect, thereby breaking. The light-emitting layer 300 breaks to form light-emitting units 310 that are disconnected from each other and located in the isolation opening 240. There is no need to use a precision mask plate, which can reduce the development and use of precision masks and reduce the preparation cost. The first electrode 530 includes a main body 540, and the first center 543 of at least part of the main body 540 has different distances from the isolation structure 200 on both sides in the first direction X, that is, at least part of the main body 540 is offset relative to the center of the isolation opening 240 in the first direction X, so as to reduce the shielding of the main body 540 on the area with higher transmittance in the isolation opening 240, increase the area of ​​the area with higher transmittance in the isolation opening 240, increase the transmittance of the area where the isolation opening 240 is located, increase the overall transmittance and display effect of the display panel 10, and thus improve the performance of the OLED display product.

[0164] According to the embodiments described above, these embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; A plurality of first electrodes are located on one side of the substrate, wherein the first electrodes include a main body; an isolation structure, located on one side of the substrate, the isolation structure encloses a plurality of isolation openings, the orthographic projection of the isolation openings on the substrate is located outside the orthographic projection of the corresponding first electrode on the substrate, and the orthographic projection of the main body on the substrate is located within the orthographic projection of the corresponding isolation opening on the substrate; a light-emitting layer, comprising a plurality of light-emitting units, wherein the light-emitting units are located on a side of the corresponding first electrode away from the substrate, and at least a portion of the light-emitting units are located in the corresponding isolation openings; Wherein, at least a portion of the main body has different shortest distances between two sides of the main body and the isolation structure in the first direction.

2. The display panel according to claim 1, characterized in that: The main body has a plurality of first sides and a plurality of second sides alternately connected, the first direction includes two first sides that are oppositely arranged and have different shortest distances from the isolation structure, the second direction includes two second sides that are oppositely arranged and have different shortest distances from the isolation structure, and the first direction and the second direction intersect.

3. The display panel according to claim 1, characterized in that: At least part of the isolation opening includes a first area and a second area distributed in the first direction, and a ratio of an area of ​​an orthographic projection of the main body on the first area to an area of ​​the first area is greater than a ratio of an area of ​​an orthographic projection of the main body on the second area to an area of ​​the second area; Preferably, the display panel further includes: An array layer is located between the substrate and the plurality of first electrodes, wherein a metal density of the array layer located below an orthographic projection of the first region is smaller than a metal density of the array layer located below an orthographic projection of the second region.

4. The display panel according to claim 3, characterized in that: The shortest distance between the main body located in the first area and the isolation structure in the first direction is a first distance, and the shortest distance between the main body located in the second area and the isolation structure in the first direction is a second distance, and the first distance is greater than the second distance.

5. The display panel according to claim 4, characterized in that: A difference between the first distance and the second distance is greater than or equal to 4 μm.

6. The display panel according to claim 2, characterized in that: The first electrode also includes an extension portion, which extends from the main body portion toward the isolation structure along the second direction, and the shortest distance between a side of the main body portion close to the extension portion in the second direction and the isolation structure is a third distance, and the shortest distance between a side of the main body portion far from the extension portion in the second direction and the isolation structure is a fourth distance, and the fourth distance is greater than the third distance.

7. The display panel according to claim 1, characterized in that: The display panel further includes: A pixel definition layer, located on one side of the substrate, the pixel definition layer comprising a pixel definition portion and a plurality of pixel openings formed by the pixel definition portion, the pixel openings being connected to the corresponding isolation openings; Preferably, part of the main body is exposed by the pixel opening; Preferably, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the main body on the substrate.

8. The display panel according to claim 7, characterized in that: The shortest distances between the two sides of the pixel opening in the first direction and the isolation structure are the same, and / or the shortest distances between the two sides of the pixel opening in the second direction and the isolation structure are the same.

9. The display panel according to claim 7, characterized in that: The shortest distances between at least part of the pixel openings and the isolation structure on two sides in the first direction are different.

10. The display panel according to claim 9, characterized in that: The pixel opening has a plurality of third sides and a plurality of fourth sides that are alternately connected, including two third sides that are relatively arranged and have different shortest distances from the isolation structure in the first direction, and two fourth sides that are relatively arranged and have different shortest distances from the isolation structure in the second direction.

11. The display panel according to claim 9, characterized in that: At least part of the isolation opening includes a first area and a second area distributed in the first direction, and the ratio of the area of ​​the orthographic projection of the pixel opening in the first area to the area of ​​the first area is greater than the ratio of the area of ​​the orthographic projection of the pixel opening in the second area to the area of ​​the first area.

12. The display panel according to claim 11, characterized in that: The shortest distance between the pixel opening located in the first area and the isolation structure in the first direction is a fifth distance, the shortest distance between the pixel opening located in the second area and the isolation structure in the first direction is a sixth distance, and the fifth distance is greater than the sixth distance; Preferably, the difference between the fifth distance and the sixth distance is greater than or equal to 4 μm.

13. The display panel according to claim 9, characterized in that: The first electrode also includes an extension portion, which extends from the main body toward the isolation structure along the second direction, and the shortest distance between the side of the pixel opening close to the extension portion in the second direction and the isolation structure is a seventh distance, and the shortest distance between the side of the pixel opening far from the extension portion in the second direction and the isolation structure is an eighth distance, and the eighth distance is greater than the seventh distance.

14. The display panel according to claim 1, characterized in that: The light-emitting unit includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, and the shortest distances between the two sides of the main body in the first direction corresponding to at least two of the first light-emitting unit, the second light-emitting unit and the third light-emitting unit and the isolation structure are different; Preferably, the first light emitting unit, the second light emitting unit and the third light emitting unit have different light emitting colors.

15. The display panel according to claim 14, characterized in that: A plurality of the first light emitting units are arranged along the first direction to form a first pixel column, the second light emitting units and the third light emitting units are alternately arranged along the first direction to form a second pixel column, and the first pixel column and the second pixel column are alternately arranged along the second direction; Preferably, the orthographic projection area of ​​the third light emitting unit on the substrate is greater than or equal to the orthographic projection area of ​​the first light emitting unit on the substrate, and / or the orthographic projection area of ​​the third light emitting unit on the substrate is greater than or equal to the orthographic projection area of ​​the second light emitting unit on the substrate; Preferably, the shortest distances between the isolation structure and the two sides of the main body of the first electrode corresponding to the second light-emitting unit and the third light-emitting unit in the first direction are different; Preferably, the shortest distances between the two sides of the main body corresponding to the first light-emitting unit and the isolation structure in the first direction are the same, and the shortest distances between the two sides of the main body corresponding to the first light-emitting unit and the isolation structure in the second direction are the same; Preferably, the area of ​​the isolation opening corresponding to the second light emitting unit and the third light emitting unit is larger than the area of ​​the isolation opening corresponding to the first light emitting unit.

16. The display panel according to claim 1, characterized in that: The isolation structure comprises a first layer and a second layer located on a side of the first layer away from the substrate, wherein the orthographic projection of a surface of the first layer on a side away from the substrate on the substrate is located within the orthographic projection of a surface of the second layer on a side close to the substrate on the substrate; Preferably, the first layer comprises a conductive material; Preferably, the second layer comprises a conductive material or an insulating material; Preferably, the first layer and the second layer both comprise metal materials, and the materials of the first layer and the second layer are different; Preferably, the isolation structure further comprises a third layer located on the side of the first layer facing the substrate, and the orthographic projection of the surface of the first layer close to the substrate on the substrate is located within the orthographic projection of the surface of the third layer away from the substrate on the substrate; Preferably, the display panel further includes: A second electrode layer, located on a side of the light-emitting layer away from the substrate, the second electrode layer comprising a plurality of second electrodes located in the plurality of isolation openings, the second electrodes being electrically connected to the isolation structure; Preferably, the orthographic projection of the light emitting unit on the substrate is located within the orthographic projection of the second electrode on the substrate; Preferably, the light emitting unit and the isolation structure are spaced apart from each other.

17. A display panel, characterized in that: The display panel comprises: substrate; A pixel definition layer, located on one side of the substrate, the pixel definition layer comprising a pixel definition portion and a plurality of pixel openings formed by the pixel definition portion; an isolation structure, located on one side of the substrate, the isolation structure encloses a plurality of isolation openings, the pixel openings are connected to the corresponding isolation openings, and at least some of the pixel openings have different shortest distances from the isolation structure on both sides in the first direction; The light-emitting layer is located on one side of the substrate, and the light-emitting layer includes a plurality of light-emitting units, at least part of which is located in the pixel opening.

18. The display panel according to claim 17, characterized in that: At least part of the isolation opening includes a first area and a second area distributed in the first direction, and the ratio of the area of ​​the orthographic projection of the pixel opening in the first area to the area of ​​the first area is greater than the ratio of the area of ​​the orthographic projection of the pixel opening in the second area to the area of ​​the first area.

19. A display device, characterized in that: A display panel comprising any one of claims 1-18.

20. A method for preparing a display panel, characterized in that: The method comprises: Preparing a plurality of first electrodes on a substrate, wherein the first electrodes include a main body; An isolation structure is prepared on the substrate, wherein the isolation structure encloses a plurality of isolation openings, wherein the orthographic projection of the isolation openings on the substrate is located outside the orthographic projection of the corresponding first electrode on the substrate, and the orthographic projection of the main body on the substrate is located within the orthographic projection of the corresponding isolation opening on the substrate; A light-emitting layer is prepared on the substrate, wherein the light-emitting layer includes a plurality of light-emitting units, wherein the light-emitting units are located on a side of the corresponding first electrode facing away from the substrate, and at least a portion of the light-emitting units are located in the corresponding isolation opening, wherein at least a portion of the main body has a different shortest distance between both sides of the isolation structure in the first direction.

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