Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel includes: a substrate; the isolation structure is arranged on one side of the substrate and defines a plurality of first openings; the plurality of sub-pixels are correspondingly arranged in the plurality of first openings; wherein the isolation structure comprises a first isolation structure and a second isolation structure, and the light transmittance of the first isolation structure is greater than that of the second isolation structure; the first isolation structure is arranged on at least part of the periphery of at least one sub-pixel. Therefore, the light transmittance of the periphery of the at least one sub-pixel can be improved, so that the light transmittance performance of the display area of the display panel is improved, and the use performance of the under-screen module is improved.

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] Organic Light Emitting Diode (OLED) display technology is regarded as the most promising new flat panel display technology of the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed. However, the current OLED display panel has the problem of poor light transmittance. Summary of the invention

[0003] Based on this, it is necessary to provide a display panel and a display device that can improve light transmittance performance.

[0004] In a first aspect, an embodiment of the present application provides a display panel, the display panel comprising:

[0005] substrate;

[0006] An isolation structure, disposed on one side of the substrate and defining a plurality of first openings;

[0007] A plurality of sub-pixels are correspondingly disposed in the plurality of first openings;

[0008] Wherein, the isolation structure comprises a first isolation structure and a second isolation structure, and the light transmittance of the first isolation structure is greater than the light transmittance of the second isolation structure;

[0009] The first isolation structure is disposed on at least a portion of the periphery of at least one of the sub-pixels.

[0010] The display panel provided in the embodiment of the present application is provided with a first isolation structure and a second isolation structure on a substrate, so that the light transmittance of the first isolation structure is greater than the light transmittance of the second isolation structure, and the first isolation structure is provided on at least part of the periphery of at least one sub-pixel. In this way, the light transmittance of the periphery of the at least one sub-pixel can be improved, thereby improving the light transmittance performance of the display area of ​​the display panel and improving the performance of the under-screen module.

[0011] In one embodiment, the sub-pixel includes a first electrode, a light-emitting functional portion, and a second electrode that are stacked;

[0012] The second isolation structure is provided on at least a portion of the periphery of at least one of the sub-pixels, and the second electrode of the at least one of the sub-pixels is electrically connected to the second isolation structure;

[0013] Preferably, the second electrodes of all the sub-pixels are electrically connected to the second isolation structure, and the second isolation structure is provided on at least part of the periphery of all the sub-pixels.

[0014] In this way, the second isolation structure can be used to supply power to at least part of the pixels, thereby optimizing the wiring arrangement of the display area.

[0015] In one embodiment, the first isolation structure and the second isolation structure are disposed at the periphery of each of the sub-pixels;

[0016] Preferably, in the first isolation structure and the second isolation structure defining the same first opening, the total length of the first isolation structure is greater than or equal to the total length of the second isolation structure;

[0017] Preferably, the light transmittance of the first isolation structure is not less than 80%.

[0018] In this way, the light transmittance of the display area of ​​the display panel is improved.

[0019] In one embodiment, the first isolation structure includes:

[0020] A plurality of first sub-isolation structures are arranged at intervals along a first direction; and

[0021] A plurality of second sub-isolation structures are arranged at intervals along a second direction; the second direction intersects the first direction;

[0022] The second isolation structure comprises:

[0023] A plurality of fourth sub-isolation structures are arranged at intervals along the second direction; wherein a second sub-isolation structure is disposed between at least two adjacent fourth sub-isolation structures;

[0024] Preferably, a second sub-isolation structure is disposed between any two adjacent fourth sub-isolation structures;

[0025] Preferably, the second isolation structure further includes:

[0026] at least two third sub-isolation structures are arranged along the first direction; at least one first sub-isolation structure is disposed between two adjacent third sub-isolation structures;

[0027] In one embodiment, the number of the third sub-isolation structures is two, and the plurality of first sub-isolation structures are disposed between two of the third sub-isolation structures;

[0028] Preferably, each of the third sub-isolation structures is electrically connected to all of the fourth sub-isolation structures;

[0029] Preferably, the display panel further includes a virtual pixel; a second opening is provided between the third sub-isolation structure and the adjacent first sub-isolation structure, and the virtual pixel is provided in the second opening.

[0030] In this way, the light transmittance of the display area can be maximized while ensuring that the first isolation structure supplies power to the sub-pixel.

[0031] In one embodiment, along the thickness direction of the substrate, the first isolation structure has an opposite top surface and a bottom surface; the width of the top surface is greater than the width of the bottom surface; the width is the dimension of the orthographic projection of the first isolation structure on the substrate in a direction perpendicular to the extension direction of the first isolation structure;

[0032] Preferably, the first isolation structure is constructed as an organic film layer;

[0033] Preferably, in a direction perpendicular to the extension of the first isolation structure, the cross-sectional shape of the top surface is an arc;

[0034] Preferably, in a direction perpendicular to the extension of the first isolation structure, the cross-sectional shape of the first isolation structure is an inverted trapezoid;

[0035] Preferably, the first isolation structure comprises a first isolation portion and a second isolation portion which are stacked; the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate;

[0036] Preferably, the material of the first isolation portion includes an inorganic material; and the material of the second isolation portion includes a metal oxide.

[0037] In this way, the effect of making a selection according to actual conditions can be achieved, which is helpful to reduce the difficulty of manufacturing the display panel.

[0038] In one embodiment, the second isolation structure includes a third isolation portion and a fourth isolation portion which are stacked;

[0039] The orthographic projection of the third isolation portion on the substrate is located within the orthographic projection of the fourth isolation portion on the substrate;

[0040] Preferably, the width of the bottom surface of the fourth isolating portion is greater than the width of the top surface of the third isolating portion;

[0041] The width is the dimension of the orthographic projection of the second isolation structure on the substrate in a direction perpendicular to the extension direction of the second isolation structure;

[0042] Preferably, the second electrode of the sub-pixel is electrically connected to the third isolation portion;

[0043] Preferably, the material of the third isolation portion includes at least one of metal and metal oxide.

[0044] In this way, the isolation structure can have a better isolation effect, and it is convenient to connect the second electrode of the sub-pixel with the driving circuit through the third isolation part, so that the wiring arrangement of the display area is more optimized.

[0045] In one embodiment, the display panel has a first display area and a second display area adjacent to each other, the light transmittance of the first display area is greater than the light transmittance of the second display area; and the first isolation structure is at least located in the first display area.

[0046] In this way, the isolation structure in the first display area and the isolation structure in the second display area can be arranged differently, thereby improving the light transmittance of the first display area.

[0047] In one of the embodiments, the display panel further comprises a pixel definition layer disposed on the substrate, and a plurality of pixel openings are disposed on the pixel definition layer;

[0048] The sub-pixel is arranged in the pixel opening, the isolation structure is arranged on a side of the pixel definition layer away from the substrate, and the pixel opening is connected to the first opening;

[0049] Preferably, the plurality of pixel openings are connected to the plurality of first openings in a one-to-one correspondence.

[0050] In this way, it is convenient to arrange sub-pixels on the substrate.

[0051] In a second aspect, an embodiment of the present application provides a display device, which includes the display panel described in any embodiment of the first aspect.

[0052] The display device provided in the embodiment of the present application is provided with a first isolation structure and a second isolation structure on the substrate, so that the light transmittance of the first isolation structure is greater than the light transmittance of the second isolation structure, and the first isolation structure is provided on at least part of the periphery of at least one sub-pixel. In this way, the light transmittance of the periphery of the at least one sub-pixel can be improved, thereby improving the light transmittance performance of the display area of ​​the display panel and improving the performance of the under-screen module. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0054] Figure 1 A partial top view of a display panel provided by an embodiment of the present application is shown.

[0055] Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure of a display panel is shown.

[0056] Figure 3 for Figure 1 Another partial cross-sectional structural schematic diagram of a display panel is shown.

[0057] Figure 4 for Figure 2 A schematic cross-sectional structural diagram of the first isolation structure is shown.

[0058] Figure 5 A partial top view of another display panel provided by an embodiment of the present application is shown.

[0059] Figure 6 A schematic top view of another display panel provided in an embodiment of the present application.

[0060] Figure 7 A schematic diagram of the structure of a display device provided in one embodiment of the present application.

[0061] Description of reference numerals:

[0062] 1. Display device; 10. Display panel; 10a. First display area; 10b. Second display area; 10c. Non-display area; 11. Substrate; 12. Isolation structure; 12a. First opening; 12b. Second opening; 121. First isolation structure; 1211. First isolation part; 1212. Second isolation part; 1213. Top surface; 1214. Bottom surface; 121a. First sub-isolation structure; 121b. Second sub-isolation structure; 1215. 2. Second isolation structure; 1221. Third isolation portion; 1222. Fourth isolation portion; 122a. Third sub-isolation structure; 122b. Fourth sub-isolation structure; 13. Sub-pixel; 131. First electrode; 132. Light-emitting functional portion; 133. Second electrode; 14. Virtual pixel; 15. Pixel definition layer; 15a. Pixel opening; 16. Encapsulation layer; 161. First inorganic layer; 162. Organic layer; 163. Second inorganic layer. DETAILED DESCRIPTION

[0063] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0064] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, they do not represent any order, quantity or importance, but are only used to distinguish different components. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present application, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. "Include" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0066] Organic Light Emitting Diode (OLED) display technology is regarded as the most promising new flat panel display technology of the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed. In the relevant OLED display technology, an isolation structure is set around the sub-pixel. Due to the low light transmittance of the isolation structure, the transmittance of the AA area of ​​the display panel is reduced, which is not conducive to the use of under-screen devices such as under-screen camera and under-screen fingerprint.

[0067] In view of at least one of the above problems, the embodiments of the present application provide a display panel and a display device, wherein a first isolation structure and a second isolation structure are provided on a substrate, so that the light transmittance of the first isolation structure is greater than the light transmittance of the second isolation structure, and the first isolation structure is provided on at least part of the periphery of at least one sub-pixel. In this way, the light transmittance of the periphery of the at least one sub-pixel can be improved, thereby improving the light transmittance performance of the display area of ​​the display panel and improving the performance of the under-screen module.

[0068] First, refer to Figure 1 and Figure 2 As shown, an embodiment of the present application provides a display panel 10, which may be an organic light emitting diode display panel (Organic Light Emitting Diode, referred to as OLED) or a quantum dot electroluminescent display panel (Quantum Dot Light Emitting Diodes, referred to as QLED).

[0069] The display panel 10 includes a substrate 11 , an isolation structure 12 and a plurality of sub-pixels 13 .

[0070] Specifically, the isolation structure 12 is disposed on one side of the substrate 11 and defines a plurality of first openings 12a. The plurality of sub-pixels 13 are disposed on one side of the substrate 11 close to the isolation structure 12 and are correspondingly disposed in the plurality of first openings 12a.

[0071] The isolation structure 12 includes a first isolation structure 121 and a second isolation structure 122. The light transmittance of the first isolation structure 121 is greater than that of the second isolation structure 122. The first isolation structure 121 is disposed on at least part of the periphery of at least one sub-pixel 13.

[0072] Here, the substrate 11 may be an array substrate. The isolation structure 12 refers to a structure that can isolate the light-emitting materials of adjacent sub-pixels 13. The plurality of sub-pixels 13 may be arranged in the plurality of first openings 12a in a corresponding manner, that is, one sub-pixel 13 corresponds to one first opening 12a, or the plurality of sub-pixels 13 correspond to one first opening 12a.

[0073] The display panel 10 provided in the embodiment of the present application is configured to have a first isolation structure 121 and a second isolation structure 122 on the substrate 11, so that the light transmittance of the first isolation structure 121 is greater than the light transmittance of the second isolation structure 122, and the first isolation structure 121 is configured to be disposed on at least part of the periphery of at least one sub-pixel 13. In this way, the light transmittance of the periphery of the at least one sub-pixel 13 can be increased, thereby improving the light transmittance performance of the display area of ​​the display panel 10 and improving the performance of the under-screen module.

[0074] Specifically, when the isolation structure 12 is disposed on the substrate 11, the isolation structure 12 can be differentially disposed according to the light transmittance requirements of different areas of the display area. For example, when the light transmittance requirement of a certain area is higher than that of other areas, a first isolation structure 121 with a higher light transmittance can be disposed on the periphery of the sub-pixel 13 in the area.

[0075] In one embodiment, the sub-pixel 13 includes a first electrode 131, a light-emitting functional unit 132, and a second electrode 133 that are stacked. The second isolation structure 122 is also used to transmit electrical signals. The second isolation structure 122 is provided on at least part of the periphery of at least one sub-pixel 13, and the second electrode 133 of the at least one sub-pixel 13 is electrically connected to the second isolation structure 122.

[0076] In this way, the first isolation structure 121 can be used to supply power to at least part of the pixels, thereby optimizing the wiring arrangement of the display area.

[0077] It should be noted that the first electrode 131 may be an anode, and the second electrode 133 may be a cathode. Both the first electrode 131 and the second electrode 133 are electrically connected to the pixel driving circuit in the array substrate. If the first electrode 131 is a cathode, the second isolation structure 122 transmits a VSS signal, and if the first electrode 131 is an anode, the second isolation structure 122 transmits a VDD signal.

[0078] It is understood that the light-emitting functional part 132 includes at least a light-emitting layer (Emission layer, EML), and may also include one or more of a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole blocking layer (HBL) and an electron blocking layer (EBL). Alternatively, the light-emitting functional part 132 may also be a laminated light-emitting layer, that is, including at least two light-emitting layers and a charge generation layer (CGL) located between each adjacent light-emitting layer.

[0079] In one embodiment, the second electrodes 133 of all sub-pixels 13 are electrically connected to the second isolation structure 122 , and the second isolation structure 122 is disposed on at least a portion of the periphery of all sub-pixels 13 .

[0080] In this way, the second isolation structure 122 can be used to supply power to all sub-pixels 13, thereby optimizing the wiring arrangement of the display area.

[0081] In one embodiment, the resistivity of the second isolation structure 122 is smaller than the resistivity of the first isolation structure 121 .

[0082] Here, it should be noted that if only a part of the second isolation structure 122 is conductive, then the resistivity of the second isolation structure 122 refers to the resistivity of the conductive part. The resistivity of the first isolation structure 121 refers to the resistivity of the first isolation structure 121 as a whole. It can be understood that the first function of the first isolation structure 121 and the second isolation structure 122 is to isolate the luminescent material. This arrangement is equivalent to making the second function of the first isolation structure 121 different from the second function of the second isolation structure 122. Furthermore, the second function of the first isolation structure 121 is mainly to increase the transmittance, and the second function of the second isolation structure 122 is mainly to conduct electricity.

[0083] In one embodiment, referring to Figure 1 , Figure 2 and Figure 3 As shown, a first isolation structure 121 and a second isolation structure 122 are disposed on the periphery of each sub-pixel 13 , that is, a portion of the periphery of each sub-pixel 13 is provided with the first isolation structure 121 , and another portion of the periphery is provided with the second isolation structure 122 .

[0084] In this way, it is equivalent to providing a first isolation structure 121 and a second isolation structure 122 on the periphery of all sub-pixels 13. On the one hand, the transmittance of the display area of ​​the display panel 10 can be improved, and on the other hand, the second isolation structure 122 can be used to supply power to all sub-pixels 13, thereby optimizing the wiring layout of the display area.

[0085] In one embodiment, in the first isolation structure 121 and the second isolation structure 122 defining the same first opening 12 a , the total length of the first isolation structure 121 is greater than or equal to the total length of the second isolation structure 122 .

[0086] Here, it should be noted that the “total length of the first isolation structure 121” refers to the length of the first isolation structure 121 along the circumferential direction of the first opening 12a, and the “total length of the second isolation structure 122” refers to the length of the second isolation structure 122 along the circumferential direction of the first opening 12a. By making the total length of the first isolation structure 121 greater than or equal to the total length of the second isolation structure 122, the light-transmitting area around the sub-pixel 13 can be made larger, thereby further improving the light transmittance of the display area of ​​the display panel 10.

[0087] In a preferred embodiment, the total length of the first isolation structure 121 is greater than the total length of the second isolation structure 122. In this way, the light-transmitting area around the sub-pixel 13 can be further increased, thereby further improving the light transmittance of the display area of ​​the display panel 10.

[0088] In one embodiment, along the thickness direction of the substrate 11, the height of the first isolation structure 121 is not equal to the height of the second isolation structure 122. Specifically, the height of the first isolation structure 121 refers to the distance between the side surface of the first isolation structure 121 facing the substrate 11 and the side surface away from the substrate 11, and the height of the second isolation structure 122 refers to the distance between the side surface of the second isolation structure 122 facing the substrate 11 and the side surface away from the substrate 11.

[0089] In this way, the specific structures of the first isolation structure 121 and the second isolation structure 122 can be configured differently according to the difference in the second functions of the first isolation structure 121 and the second isolation structure 122. This can achieve the effect of selecting according to actual conditions, which is conducive to reducing the difficulty of manufacturing the display panel 10.

[0090] In some embodiments, the height of the first isolation structure 121 may be greater than the height of the second isolation structure 122. Of course, in other embodiments, the height of the first isolation structure 121 may also be less than the height of the second isolation structure 122. When the height of the first isolation column 121 is less than the height of the second isolation structure 122, when the sub-pixels are subsequently packaged independently, for example, TFE packaging is used, that is, an inorganic layer and an organic layer superposition structure, wherein the inorganic layer facing the substrate side in the TFE packaging can package the sub-pixels on both sides of the first isolation structure 121 together.

[0091] It is understandable that the height of the first isolation structure 121 and the height of the second isolation structure 122 may also be equal to ensure the support performance of the display panel. The embodiment of the present application does not limit the height of the first isolation structure 121 and the second isolation structure 122.

[0092] In one embodiment, the light transmittance of the first isolation structure 121 is not less than 80%. Thus, the first isolation structure 121 is equivalent to the transparent isolation structure 12, which is beneficial to further improve the light transmittance of the display area of ​​the display panel 10.

[0093] In one embodiment, referring to Figure 1 As shown, the first isolation structure 121 includes a plurality of first sub-isolation structures 121a and a plurality of second sub-isolation structures 121b. The plurality of first sub-isolation structures 121a are arranged at intervals along the first direction X, and each first sub-isolation structure 121a extends along the second direction Y. The plurality of second sub-isolation structures 121b are arranged at intervals along the second direction Y, and each second sub-isolation structure 121b extends along the first direction X. The second direction Y intersects the first direction X. In a preferred embodiment, the second direction Y is perpendicular to the first direction X.

[0094] The second isolation structure 122 includes a plurality of fourth sub-isolation structures 122b arranged at intervals along the second direction Y, and each fourth sub-isolation structure 122b extends along the first direction X. A second sub-isolation structure 121b is disposed between at least two adjacent fourth sub-isolation structures 122b.

[0095] In a preferred embodiment, a second sub-isolation structure is disposed between any two adjacent fourth sub-isolation structures, so that the first isolation structure 121 and the second isolation structure 122 are arranged more regularly, which is beneficial to improving the display effect of the display panel.

[0096] Furthermore, the second isolation structure 122 further includes at least two third sub-isolation structures 122a. The at least two third sub-isolation structures 122a are arranged at intervals along the first direction X, and each third sub-isolation structure 122a extends along the second direction Y. At least one first sub-isolation structure 121a is disposed between two adjacent third sub-isolation structures 122a.

[0097] In a preferred embodiment, referring to Figure 5 As shown, the number of the third sub-isolation structures 122a is two, and the plurality of first sub-isolation structures 121a are disposed between the two third sub-isolation structures 122a, that is, all the first sub-isolation structures 121a are disposed between the two third sub-isolation structures 122a.

[0098] For ease of understanding, taking a rectangular sub-pixel as an example, it is first defined that the sub-pixel 13 has four sides, namely two sides along the first direction X and two sides along the second direction Y. Figure 5 Taking any sub-pixel 13 in the display panel 10 as an example, the periphery of the three sides of each sub-pixel 13 is provided with a first isolation structure 121 with high light transmittance, and the periphery of one side is provided with a second isolation structure 122. In this way, not only can the light transmittance of the display panel 10 be maximized, but also it is ensured that each sub-pixel 13 can be electrically connected to the second isolation structure 122.

[0099] In one embodiment, referring to Figure 5 As shown, each third sub-isolation structure 122 a is electrically connected to all fourth sub-isolation structures 122 b .

[0100] It can be understood that the third sub-isolation structure 122a and the fourth sub-isolation structure 122b are both used to transmit electrical signals to the second electrode 133. By electrically connecting each third sub-isolation structure 122a with all the fourth sub-isolation structures 122b, the second isolation structure 122 can form a whole-surface mesh structure, which is beneficial to reducing the resistance of the second isolation structure 122, thereby reducing the power consumption of the display panel 10.

[0101] In one embodiment, referring to Figure 5 As shown, the display panel 10 further includes a dummy pixel 14 disposed on the substrate 11. A second opening 12b is disposed between the third sub-isolation structure 122a and the adjacent first sub-isolation structure 121a, and the dummy pixel 14 is disposed in the second opening 12b.

[0102] Specifically, at both ends of the display panel 10 along the first direction X, the third sub-isolation structure 122a, the first sub-isolation structure 121a adjacent to the third sub-isolation structure 122a, and the second sub-isolation structure 121b together surround a plurality of second openings 12b. By arranging the virtual pixels 14 in the second openings 12b, on the one hand, it can be ensured that the first isolation structure 121 is arranged on the periphery of three sides of each sub-pixel 13, thereby ensuring the uniformity of display; on the other hand, by filling the area in the second openings 12b with the virtual pixels 14, the integrity of the display panel 10 can be ensured.

[0103] It should be noted that the virtual pixel 14 refers to a pixel that does not emit light.

[0104] In one embodiment, referring to Figure 4 As shown, along the thickness direction of the substrate 11, the first isolation structure 121 has a top surface 1213 and a bottom surface 1214 opposite to each other. The width of the top surface 1213 is greater than the width of the bottom surface 1214. The width is the dimension of the orthographic projection of the first isolation structure 121 on the substrate 11 in the direction perpendicular to the extension of the first isolation structure 121. Specifically, W1 in the figure represents the width of the top surface 1213, and W2 represents the width of the bottom surface 1214.

[0105] In this way, the first isolation structure 121 can have a better isolation effect.

[0106] In one embodiment, the first isolation structure 121 is constructed as an organic film layer.

[0107] Further, refer to Figure 4 As shown, the first isolation structure 121 is constructed as a single organic film layer, that is, the first isolation structure 121 is a single-layer structure.

[0108] In this way, the first isolation structure 121 can be formed by exposure, which can reduce the difficulty of manufacturing the first isolation structure 121.

[0109] In one embodiment, referring to Figure 4 As shown, in a direction perpendicular to the extension of the first isolation structure 121, the cross-sectional shape of the top surface 1213 is an arc. Further, the bottom surface 1214 of the first isolation structure 121 is a plane.

[0110] In one example, a side surface is further provided between the top surface 1213 and the bottom surface 1214 , and the cross-sectional shape of the side surface is an arc or a straight line.

[0111] In another embodiment, the cross-sectional shape of the first isolation structure 121 is semicircular or semi-elliptical in a direction perpendicular to the extension of the first isolation structure 121. In one example, the semicircle can be three-quarters semicircle, three-fifths semicircle, five-sixths semicircle, etc.

[0112] In one embodiment, the cross-sectional shape of the first isolation structure 121 is an inverted trapezoid in the extending direction perpendicular to the first isolation structure 121. In this way, while reducing the difficulty of manufacturing the first isolation structure 121, the first isolation structure 121 can also have a better isolation effect.

[0113] In one embodiment, the first isolation structure 121 includes a first isolation portion 1211 and a second isolation portion 1212 that are stacked. The outer contour of the orthographic projection of the second isolation portion 1212 on the substrate 11 is located outside the outer contour of the orthographic projection of the first isolation portion 1211 on the substrate 11, that is, the orthographic projection of the first isolation portion 1211 on the substrate 11 is located within the orthographic projection of the second isolation portion 1212 on the substrate 11.

[0114] In this way, the first isolation structure 121 can have a better isolation effect.

[0115] In one embodiment, the material of the first isolation portion 1211 includes an inorganic material. The material of the second isolation portion 1212 includes a metal oxide. In this way, the first isolation structure 121 can be formed by an etching process. Further, the material of the second isolation portion 1212 includes, but is not limited to: tin oxide, zinc oxide, cadmium oxide, indium oxide, indium tin oxide, zinc indium oxide, zinc gallium oxide, zinc aluminum oxide, and titanium tantalum oxide.

[0116] The two different structures of the first isolation structure 121 can achieve an effect of selection according to actual conditions, which is beneficial to reducing the difficulty of manufacturing the display panel 10 .

[0117] In one embodiment, referring to Figure 2 and Figure 3 As shown, the second isolation structure 122 includes a third isolation portion 1221 and a fourth isolation portion 1222 which are stacked. The outer contour of the orthographic projection of the fourth isolation portion 1222 on the substrate 11 is located outside the outer contour of the orthographic projection of the third isolation portion 1221 on the substrate 11, that is, the orthographic projection of the third isolation portion 1221 on the substrate 11 is located within the orthographic projection of the fourth isolation portion 1222 on the substrate 11.

[0118] In this way, the isolation effect of the second isolation structure 122 can be improved.

[0119] In one embodiment, the width of the bottom surface of the fourth isolation portion 1222 is greater than the width of the top surface of the third isolation portion 1221. The width is the dimension of the orthographic projection of the second isolation structure 122 on the substrate 11 in a direction perpendicular to the extension direction of the second isolation structure 122.

[0120] In this way, the isolation structure 12 can form an undercut structure with a “large top and small bottom”. When the sub-pixel 13 is evaporated, the undercut structure can isolate the light-emitting material of the sub-pixel 13 .

[0121] In one embodiment, the third isolation portion 1221 is used to transmit electrical signals, and the second electrode 133 of the sub-pixel 13 is electrically connected to the third isolation portion 1221 .

[0122] In this way, it is convenient to connect the second electrode 133 of the sub-pixel 13 to the driving circuit through the third isolation portion 1221, so that the wiring arrangement of the display area is more optimized.

[0123] In one embodiment, the material of the third isolation portion 1221 includes at least one of a metal and a metal oxide. For example, the metal may be silver, copper, titanium, aluminum, etc. The metal oxide may be tin oxide, zinc oxide, cadmium oxide, indium oxide, indium tin oxide, zinc indium oxide, zinc gallium oxide, zinc aluminum oxide, titanium tantalum oxide, etc.

[0124] In one embodiment, the third isolation portion 1221 is a stacked structure, that is, the third isolation portion 1221 includes at least two metal film layers. Exemplarily, the third isolation portion 1221 includes a stacked Mo metal layer and an Al metal layer.

[0125] In one embodiment, referring to Figure 6 As shown, the display panel 10 has a first display area 10a and a second display area 10b adjacent to each other, and the light transmittance of the first display area 10a is greater than the light transmittance of the second display area 10b. The first isolation structure 121 is at least located in the first display area 10a. Specifically, the first display area 10a can be a main screen area, and the second display area 10b can be a secondary screen area. In addition, the display panel 10 also has a non-display area 10c, and the non-display area 10c can be located at the periphery of the first display area 10a.

[0126] In this way, the isolation structure 12 in the first display area 10 a and the isolation structure 12 in the second display area 10 b can be arranged differently, thereby improving the light transmittance of the first display area 10 a .

[0127] In one embodiment, the display panel 10 further includes a pixel definition layer 15 disposed on the substrate 11, and a plurality of pixel openings 15a are disposed on the pixel definition layer 15. The sub-pixels 13 are disposed in the pixel openings 15a, and the isolation structure 12 is disposed on a side of the pixel definition layer 15 away from the substrate 11, and the pixel openings 15a are connected to the first opening 12a.

[0128] By providing the pixel opening 15 a on the pixel definition layer 15 , it is possible to facilitate providing the sub-pixel 13 on the substrate 11 .

[0129] In one embodiment, the plurality of pixel openings 15 a are connected to the plurality of first openings 12 a in a one-to-one correspondence.

[0130] Here, it should be noted that “one-to-one correspondence” means that each first opening 12 a corresponds to one pixel opening 15 a .

[0131] In another embodiment, one first opening 12 a corresponds to a plurality of pixel openings 15 a , and the same seed pixel 13 is disposed in each pixel opening 15 a corresponding to the first opening 12 a .

[0132] In this way, the display panel 10 can have a better display effect.

[0133] In one embodiment, referring to Figure 2 and Figure 3 As shown, the display panel 10 further includes an encapsulation layer 16, which covers the sub-pixels 13 and the isolation structure 12. Further, the encapsulation layer 16 includes a first inorganic layer 161, an organic layer 162, and a second inorganic layer 163 which are stacked.

[0134] In a specific embodiment, a display panel 10 is provided, referring to Figure 2 , Figure 3 and Figure 5 As shown, the display panel 10 includes a substrate 11 , an isolation structure 12 and a plurality of sub-pixels 13 .

[0135] Specifically, the isolation structure 12 is disposed on the substrate 11 and defines a plurality of first openings 12a. A plurality of sub-pixels 13 are disposed on the substrate 11 and correspondingly disposed in the plurality of first openings 12a. The sub-pixels 13 include a first electrode 131, a light emitting functional portion 132 and a second electrode 133 which are stacked.

[0136] The isolation structure 12 includes a first isolation structure 121 and a second isolation structure 122, and the light transmittance of the first isolation structure 121 is greater than the light transmittance of the second isolation structure 122. The second isolation structure 122 is also used to transmit electrical signals, and the second electrode 133 of the sub-pixel 13 is electrically connected to the second isolation structure 122. A portion of the periphery of each sub-pixel 13 is provided with the first isolation structure 121, and another portion of the periphery is provided with the second isolation structure 122.

[0137] Further, the first isolation structure 121 includes a plurality of first sub-isolation structures 121a and a plurality of second sub-isolation structures 121b. The plurality of first sub-isolation structures 121a are arranged at intervals along a first direction X. The plurality of second sub-isolation structures 121b are arranged at intervals along a second direction Y. The second direction Y is perpendicular to the first direction X.

[0138] The second isolation structure 122 includes two third sub-isolation structures 122a and a plurality of fourth sub-isolation structures 122b. The two third sub-isolation structures 122a are arranged at intervals along the first direction X. The plurality of first sub-isolation structures 121a are arranged between the two third sub-isolation structures 122a. The plurality of fourth sub-isolation structures 122b are arranged at intervals along the second direction Y. A second sub-isolation structure 121b is arranged between any two adjacent fourth sub-isolation structures 122b.

[0139] Furthermore, each third sub-isolation structure 122 a is electrically connected to all fourth sub-isolation structures 122 b .

[0140] The display panel 10 provided in the embodiment of the present application is provided with a first isolation structure 121 and a second isolation structure 122 on the substrate 11, so that the transmittance of the first isolation structure 121 is greater than the transmittance of the second isolation structure 122, and the first isolation structure 121 is provided at least partially around the periphery of at least one sub-pixel 13. In this way, the transmittance of the periphery of the at least one sub-pixel 13 can be improved, thereby improving the light transmittance performance of the display area of ​​the display panel 10 and improving the performance of the under-screen module. In addition, by arranging the first sub-isolation structure 121a, the second sub-isolation structure 121b, the third sub-isolation structure 122a and the fourth sub-isolation structure 122b, while ensuring that the first isolation structure 121 supplies power to the sub-pixel 13, the transmittance of the display area can be maximized, and at the same time, it is beneficial to reduce the resistance of the second isolation structure 122, thereby reducing the power consumption of the display panel 10.

[0141] Furthermore, the display panel 10 further includes a dummy pixel 14 disposed on the substrate 11. A second opening 12b is formed between the third sub-isolation structure 122a and the adjacent first sub-isolation structure 121a, and the dummy pixel 14 is disposed in the second opening 12b.

[0142] Specifically, at both ends of the display panel 10 along the first direction X, the third sub-isolation structure 122a, the first sub-isolation structure 121a adjacent to the third sub-isolation structure 122a, and the second sub-isolation structure 121b together surround a plurality of second openings 12b. By arranging the virtual pixels 14 in the second openings 12b, on the one hand, it can be ensured that the first isolation structure 121 is arranged on the periphery of three sides of each sub-pixel 13, thereby ensuring the uniformity of display; on the other hand, by filling the area in the second openings 12b with the virtual pixels 14, the integrity of the display panel 10 can be ensured.

[0143] Furthermore, the light transmittance of the first isolation structure 121 is not less than 80%. In this way, the first isolation structure 121 is equivalent to the transparent isolation structure 12, which is beneficial to further improve the light transmittance of the display area of ​​the display panel 10.

[0144] Second, refer to Figure 7 As shown, an embodiment of the present application provides a display device 1, which includes a display panel 10 according to any one of the first and second aspects.

[0145] The display device 1 can be a laptop computer, a mobile phone, a wireless device, a personal digital assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a TV monitor, a flat-panel display, a computer monitor, a car display (e.g., an odometer display, etc.), a navigator, a cockpit controller and / or display, a display of a camera view (e.g., a display of a rearview camera in a vehicle), an electronic photo, an electronic billboard or sign, a projector, etc.

[0146] The display device 1 provided in the embodiment of the present application is configured to have a first isolation structure 121 and a second isolation structure 122 on the substrate 11, so that the light transmittance of the first isolation structure 121 is greater than the light transmittance of the second isolation structure 122, and the first isolation structure 121 is configured to be disposed on at least part of the periphery of at least one sub-pixel 13. In this way, the light transmittance of the periphery of the at least one sub-pixel 13 can be increased, thereby improving the light transmittance performance of the display area of ​​the display panel 10 and improving the performance of the under-screen module.

[0147] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0148] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0149] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: substrate; An isolation structure, disposed on one side of the substrate and defining a plurality of first openings; A plurality of sub-pixels are correspondingly disposed in the plurality of first openings; Wherein, the isolation structure comprises a first isolation structure and a second isolation structure, and the light transmittance of the first isolation structure is greater than the light transmittance of the second isolation structure; The first isolation structure is disposed on at least a portion of the periphery of at least one of the sub-pixels.

2. The display panel according to claim 1, characterized in that: The sub-pixel includes a first electrode, a light-emitting functional portion, and a second electrode that are stacked; The second isolation structure is provided on at least a portion of the periphery of at least one of the sub-pixels, and the second electrode of the at least one of the sub-pixels is electrically connected to the second isolation structure; Preferably, the second electrodes of all the sub-pixels are electrically connected to the second isolation structure, and the second isolation structure is provided on at least part of the periphery of all the sub-pixels.

3. The display panel according to claim 1, characterized in that: The first isolation structure and the second isolation structure are disposed at the periphery of each of the sub-pixels; Preferably, in the first isolation structure and the second isolation structure defining the same first opening, the total length of the first isolation structure is greater than or equal to the total length of the second isolation structure; Preferably, the light transmittance of the first isolation structure is not less than 80%.

4. The display panel according to claim 3, characterized in that: The first isolation structure comprises: A plurality of first sub-isolation structures are arranged at intervals along a first direction; and A plurality of second sub-isolation structures are arranged at intervals along a second direction; the second direction intersects the first direction; The second isolation structure comprises: A plurality of fourth sub-isolation structures are arranged at intervals along the second direction; wherein a second sub-isolation structure is disposed between at least two adjacent fourth sub-isolation structures; Preferably, a second sub-isolation structure is disposed between any two adjacent fourth sub-isolation structures; Preferably, the second isolation structure further includes: At least two third sub-isolation structures are arranged along the first direction; and at least one first sub-isolation structure is disposed between two adjacent third sub-isolation structures.

5. The display panel according to claim 4, characterized in that: The number of the third sub-isolation structures is two, and the plurality of first sub-isolation structures are arranged between two of the third sub-isolation structures; Preferably, each of the third sub-isolation structures is electrically connected to all of the fourth sub-isolation structures; Preferably, the display panel further includes a virtual pixel; a second opening is provided between the third sub-isolation structure and the adjacent first sub-isolation structure, and the virtual pixel is provided in the second opening.

6. The display panel according to claim 3, characterized in that: The first isolation structure has an opposite top surface and bottom surface along the thickness direction of the substrate; the width of the top surface is greater than the width of the bottom surface; the width is the dimension of the orthographic projection of the first isolation structure on the substrate in a direction perpendicular to the extension direction of the first isolation structure; Preferably, the first isolation structure is constructed as an organic film layer; Preferably, in a direction perpendicular to the extension of the first isolation structure, the cross-sectional shape of the top surface is an arc; Preferably, in a direction perpendicular to the extension of the first isolation structure, the cross-sectional shape of the first isolation structure is an inverted trapezoid; Preferably, the first isolation structure comprises a first isolation portion and a second isolation portion which are stacked; the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate; Preferably, the material of the first isolation part includes an inorganic material; the material of the second isolation part includes a metal oxide 。 7. The display panel according to claim 3, characterized in that: The second isolation structure includes a third isolation portion and a fourth isolation portion which are stacked; The orthographic projection of the third isolation portion on the substrate is located within the orthographic projection of the fourth isolation portion on the substrate; Preferably, the width of the bottom surface of the fourth isolation portion is greater than the width of the top surface of the third isolation portion; The width is the dimension of the orthographic projection of the second isolation structure on the substrate in a direction perpendicular to the extension direction of the second isolation structure; Preferably, the second electrode of the sub-pixel is electrically connected to the third isolation portion; Preferably, the material of the third isolation portion includes at least one of metal and metal oxide.

8. The display panel according to claim 1, characterized in that: The display panel has a first display area and a second display area adjacent to each other, the light transmittance of the first display area is greater than the light transmittance of the second display area; and the first isolation structure is at least located in the first display area.

9. The display panel according to claim 1, characterized in that: The display panel further comprises a pixel definition layer disposed on the substrate, wherein the pixel definition layer is provided with a plurality of pixel openings; The sub-pixel is arranged in the pixel opening, the isolation structure is arranged on a side of the pixel definition layer away from the substrate, and the pixel opening is connected to the first opening; Preferably, the plurality of pixel openings are connected to the plurality of first openings in a one-to-one correspondence.

10. A display device, characterized in that: The invention comprises a display panel as claimed in any one of claims 1 to 9.

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