Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a substrate, an isolation structure and a first electrode, the isolation structure is arranged on one side of the substrate, and an isolation opening is defined by the isolation structure; the first electrode is arranged on one side of the substrate and corresponds to the isolation opening, and the orthographic projection of the first electrode on the substrate is overlapped with the orthographic projection of the isolation structure on the substrate; wherein the first electrode comprises a first extension part and a second extension part which are located on the side, close to the substrate, of the isolation structure and are adjacently arranged, the first extension part extends in the first direction, the second extension part extends in the second direction, and the orthographic projection area of the first extension part on the substrate is larger than the orthographic projection area of the second extension part on the substrate; the first direction and the second direction intersect and are perpendicular to the thickness direction of the substrate. Therefore, the problem of transverse leakage can be solved, and the display effect of the display panel can be 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] OLED (Organic Light-Emitting Diode) has the characteristics of self-luminescence, high brightness, wide viewing angle, high contrast, flexibility, low energy consumption, etc., so it has attracted widespread attention and has gradually replaced traditional liquid crystal displays as a new generation of display methods. It is widely used in mobile phone screens, computer monitors, full-color TVs, etc. However, the current OLED display panel has the problem of poor display effect. Summary of the invention

[0003] Based on this, the present application provides a display panel and a display device to improve the display effect of the display panel.

[0004] According to one aspect of the present application, a display panel is provided, including:

[0005] substrate;

[0006] An isolation structure, disposed on one side of the substrate, wherein the isolation structure defines an isolation opening;

[0007] A first electrode is disposed on one side of the substrate and is arranged corresponding to the isolation opening, wherein an orthographic projection of the first electrode on the substrate overlaps with an orthographic projection of the isolation structure on the substrate;

[0008] Among them, the first electrode includes a first extension portion and a second extension portion which are located on a side of the isolation structure close to the substrate and are arranged adjacent to each other, the first extension portion extends along a first direction, the second extension portion extends along a second direction, and the orthographic projection area of ​​the first extension portion on the substrate is larger than the orthographic projection area of ​​the second extension portion on the substrate; the first direction intersects with the second direction and is perpendicular to the thickness direction of the substrate.

[0009] In one embodiment, the isolation structure includes a conductor and a blocking portion stacked in a direction away from the substrate; the outer contour of the orthographic projection of the blocking portion on the substrate is located outside the outer contour of the orthographic projection of the conductor on the substrate;

[0010] The outer contour of the orthographic projection of the first extension portion on the substrate is located within the orthographic projection range of the conductor on the substrate, the orthographic projection of the second extension portion on the substrate does not overlap with the orthographic projection of the conductor on the substrate, and the outer contour of the orthographic projection of the second extension portion on the substrate is located within the orthographic projection range of the blocking portion on the substrate;

[0011] Optionally, the first electrode further includes a third extension portion, the third extension portion and the second extension portion are arranged opposite to each other along the second direction, the orthographic projection of the third extension portion on the substrate does not overlap with the orthographic projection of the conductor on the substrate, and the outer contour of the orthographic projection of the third extension portion on the substrate is located within the orthographic projection range of the blocking portion on the substrate;

[0012] Optionally, the first electrode further includes a fourth extension portion, the fourth extension portion and the first extension portion are arranged opposite to each other along the first direction; an outer contour of an orthographic projection of the fourth extension portion on the substrate is located within an orthographic projection range of the conductor on the substrate, or an orthographic projection of the fourth extension portion on the substrate does not overlap with an orthographic projection of the conductor on the substrate, and an outer contour of an orthographic projection of the fourth extension portion on the substrate is located within an orthographic projection range of the blocking portion on the substrate;

[0013] Optionally, the first electrode further includes a main body portion, the main body portion is connected to the first extension portion, the second extension portion, the third extension portion and the fourth extension portion, and an orthographic projection of the main body portion on the substrate overlaps with an orthographic projection of the isolation opening on the substrate;

[0014] Optionally, the first extension portion and the fourth extension portion are symmetrical about the second direction; the second extension portion and the third extension portion are symmetrical about the first direction;

[0015] Optionally, the orthographic projection of the first electrode on the substrate is an axisymmetric shape;

[0016] Optionally, the orthographic projection of the first electrode on the substrate is rectangular;

[0017] Optionally, two adjacent sides of the rectangle extend along the first direction and the second direction respectively;

[0018] Optionally, the orthographic projection of the first electrode on the substrate is a centrally symmetrical figure;

[0019] Optionally, the orthographic projection of the first electrode on the substrate is in the shape of a rhombus;

[0020] Optionally, two diagonal lines of the rhombus extend along the first direction and the second direction respectively;

[0021] Optionally, the first direction is perpendicular to the second direction;

[0022] Optionally, the first direction is parallel to one of a long side and a short side of the display panel, and the second direction is parallel to the other of the long side and the short side of the display panel.

[0023] In one embodiment, the conductive body disposed around the isolation opening includes a first body wall corresponding to the isolation opening, and the orthographic projection of the first body wall on the substrate includes a first contour and a second contour; the blocking portion disposed around the isolation opening includes a second body wall corresponding to the isolation opening;

[0024] The orthographic projection outer contour of the first extension portion on the substrate is located on a side of the first contour away from the orthographic projection outer contour of the second body wall on the substrate; the orthographic projection of the second extension portion on the substrate is located between the second contour and the orthographic projection outer contour of the second body wall on the substrate;

[0025] Optionally, the orthographic projection of the first body wall on the substrate includes a third contour, the third contour is arranged opposite to the second contour along the second direction, and the orthographic projection of the third extension portion on the substrate is located between the third contour and the outer contour of the orthographic projection of the second body wall on the substrate;

[0026] Optionally, the orthographic projection of the first body wall on the substrate includes a fourth contour, and the fourth contour is arranged opposite to the first contour along the first direction; the orthographic projection outer contour of the fourth extension portion on the substrate is located on a side of the fourth contour away from the orthographic projection outer contour of the second body wall on the substrate, or the orthographic projection outer contour of the fourth extension portion on the substrate is located between the fourth contour and the orthographic projection outer contour of the second body wall on the substrate;

[0027] Optionally, the first contour and the fourth contour are symmetrical along the second direction; the second contour and the third contour are symmetrical along the first direction;

[0028] Optionally, the orthographic projection of the first body wall on the substrate is an axisymmetric figure;

[0029] Optionally, the orthographic projection of the first body wall on the substrate is rectangular;

[0030] Optionally, the orthographic projection of the first body wall on the substrate is a centrally symmetrical figure;

[0031] Optionally, the orthographic projection of the first body wall on the substrate is in the shape of a rhombus.

[0032] In one embodiment, the orthographic outer contour of the second body wall on the substrate includes a first section and a second section; the first section corresponds to the first contour, and the second section corresponds to the second contour;

[0033] Along the first direction, there is a first distance between the first contour and the first section;

[0034] Along the second direction, there is a second distance between the second contour and the orthographic outer contour of the second segment on the substrate; the second distance is greater than the first distance;

[0035] Optionally, the orthographic projection outer contour of the second body wall on the substrate includes a third section; the third section corresponds to the third contour;

[0036] Along the second direction, there is a third distance between the third profile and the third section; the third distance is greater than the first distance;

[0037] Optionally, the orthographic projection outer contour of the second body wall on the substrate includes a fourth segment, and the fourth segment corresponds to the fourth contour;

[0038] Along the first direction, there is a fourth distance between the fourth profile and the fourth section; the fourth distance is greater than the first distance, or the fourth distance is smaller than the second distance and smaller than the third distance;

[0039] Optionally, along the first direction, an outer contour of an orthographic projection of the first extension portion on the substrate has a fifth distance from the first section;

[0040] Along the second direction, the orthographic projection outer contour of the second extension portion on the substrate has a sixth distance from the second section; the fifth distance is greater than the sixth distance;

[0041] Optionally, along the second direction, an outer contour of an orthographic projection of the third extension portion on the substrate has a seventh spacing with the third section; the fifth spacing is greater than the seventh spacing;

[0042] Optionally, along the first direction, an orthographic projection outer contour of the fourth extension portion on the substrate has an eighth spacing with the fourth section; the fifth spacing is greater than the eighth spacing, or the eighth spacing is greater than the sixth spacing and greater than the seventh spacing;

[0043] Optionally, the first section and the fourth section are symmetrical about the second direction; the second section and the third section are symmetrical about the first direction;

[0044] Optionally, the orthographic projection of the second body wall on the substrate is an axisymmetric figure;

[0045] Optionally, the orthographic projection of the second body wall on the substrate is rectangular;

[0046] Optionally, the orthographic projection of the second body wall on the substrate is a centrally symmetrical figure;

[0047] Optionally, the orthographic projection of the second body wall on the substrate is rhombus-shaped.

[0048] In one embodiment, it further includes a pixel defining layer, wherein the pixel defining layer is disposed between the isolation structure and the first electrode; a pixel opening connected to the isolation opening is formed on the pixel defining layer, and the pixel opening exposes at least a portion of the first electrode;

[0049] Optionally, the pixel defining layer includes a pixel defining portion, the pixel defining portion encloses the pixel opening; the outer contour of the orthographic projection of the first extending portion on the substrate is located within the orthographic projection range of the pixel defining portion on the substrate; the outer contour of the orthographic projection of the second extending portion on the substrate is located within the orthographic projection range of the pixel defining portion on the substrate;

[0050] Optionally, the outer contour of the orthographic projection of the third extending portion on the substrate is located within the orthographic projection range of the pixel defining portion on the substrate; the outer contour of the orthographic projection of the fourth extending portion on the substrate is located within the orthographic projection range of the pixel defining portion on the substrate;

[0051] Optionally, the pixel defining portion includes a first side wall surrounding the pixel opening, the orthographic projection of the first side wall on the substrate includes a fifth contour and a sixth contour, the orthographic projection outer contour of the first extending portion on the substrate is located on a side of the fifth contour away from the center of the pixel opening, and the orthographic projection outer contour of the second extending portion on the substrate is located on a side of the sixth contour away from the center of the pixel opening;

[0052] Along the first direction, there is a ninth distance between the orthographic projection outer contour of the first extension portion on the substrate and the fifth contour; along the second direction, there is a tenth distance between the orthographic projection outer contour of the second extension portion on the substrate and the sixth contour, and the tenth distance is smaller than the ninth distance;

[0053] Optionally, the orthographic projection of the first side wall on the substrate includes a seventh contour, and the orthographic projection outer contour of the third extension portion on the substrate is located on a side of the seventh contour away from the center of the pixel opening; along the second direction, the orthographic projection outer contour of the third extension portion on the substrate has an eleventh spacing from the seventh contour, and the eleventh spacing is smaller than the ninth spacing;

[0054] Optionally, the orthographic projection of the first side wall on the substrate includes an eighth contour, and the outer contour of the orthographic projection of the fourth extension on the substrate is located on a side of the seventh contour away from the center of the pixel opening; along the first direction, there is a twelfth spacing between the outer contour of the orthographic projection of the fourth extension on the substrate and the eighth contour; the twelfth spacing is smaller than the ninth spacing, or the twelfth spacing is larger than the tenth spacing and larger than the eleventh spacing;

[0055] Optionally, a first concave portion and a second concave portion are provided on a surface of one side of the pixel defining portion close to the isolation structure, the first concave portion is located on a side of the isolation structure facing the isolation opening, and an orthographic projection of the conductor on the substrate at least partially overlaps with an orthographic projection of the first concave portion on the substrate; and an orthographic projection of the conductor on the substrate covers an orthographic projection of the second concave portion on the substrate;

[0056] Optionally, an orthographic projection of the first concave portion on the substrate does not overlap with an orthographic projection of the first electrode on the substrate;

[0057] Optionally, the orthographic projection of the first recessed portion on the substrate is located on a side of the projection of the first extending portion on the substrate away from the isolation opening;

[0058] Optionally, the orthographic projection of the second recess on the substrate is located between the orthographic projections of the second extensions of adjacent first electrodes on the substrate;

[0059] Optionally, the material of the pixel defining layer includes inorganic material.

[0060] In one embodiment, one end of the blocking portion close to the isolation opening extends toward the center of the isolation opening and protrudes from the side wall of the conductor close to the isolation opening; the conductor arranged around the periphery of the isolation opening includes a first body wall surrounding the isolation opening;

[0061] The first extension portion is disposed between a portion of the conductor and the substrate; the second extension portion is disposed between a portion of the blocking portion protruding from the first body wall and the substrate;

[0062] Optionally, the orthographic projection of the first extension portion on the substrate overlaps with the orthographic projection of the conductor on the substrate; the orthographic projection of the second extension portion on the substrate overlaps with the orthographic projection of a portion of the blocking portion protruding from the first body wall on the substrate;

[0063] Optionally, the third extension portion is provided between a portion of the blocking portion protruding from the first body wall and the substrate;

[0064] Optionally, an orthographic projection of the third extending portion on the substrate partially overlaps with an orthographic projection of a portion of the blocking portion protruding from the first body wall on the substrate;

[0065] Optionally, the fourth extension portion is provided between a portion of the conductor and the substrate, or the fourth extension portion is provided between a portion of the blocking portion protruding from the first body wall and the substrate;

[0066] Optionally, the orthographic projection of the fourth extension portion on the substrate partially overlaps with the orthographic projection of the conductor on the substrate, or the orthographic projection of the fourth extension portion on the substrate partially overlaps with the orthographic projection of a portion of the blocking portion protruding from the first body wall on the substrate.

[0067] In one embodiment, the isolation structure further includes a support portion, the support portion is disposed between the conductor and the substrate; an outer contour of an orthographic projection of the support portion on the substrate is located outside an outer contour of an orthographic projection of the conductor on the substrate;

[0068] Optionally, the support portion arranged around the outer periphery of the isolation opening includes a third body wall corresponding to the isolation opening; the outer contour of the orthographic projection of the third body wall on the substrate includes a first sub-segment and a second sub-segment; the first sub-segment corresponds to the first contour, and the second sub-segment corresponds to the second contour;

[0069] The distance between the second sub-segment and the second contour is greater than the distance between the first sub-segment and the first contour;

[0070] Optionally, the orthographic projection outer contour of the third body wall on the substrate further includes a third sub-segment, the third sub-segment corresponds to the third contour, and the distance between the third sub-segment and the third contour is greater than the distance between the first sub-segment and the first contour;

[0071] Optionally, the outer contour of the orthographic projection of the third body wall on the substrate further includes a fourth sub-segment, the fourth sub-segment corresponds to the fourth contour, and the distance between the fourth sub-segment and the fourth contour is greater than the distance between the first sub-segment and the first contour; or, the distance between the second sub-segment and the second contour is greater than the distance between the fourth sub-segment and the fourth contour, and the distance between the third sub-segment and the third contour is greater than the distance between the fourth sub-segment and the fourth contour;

[0072] Optionally, the support portion includes a support main portion and an extension portion, the extension portion is provided on a side of the support main portion close to the isolation opening; the orthographic projection of the support main portion on the substrate overlaps with the orthographic projection of the conductor on the substrate, and the orthographic projection of the extension portion on the substrate does not overlap with the orthographic projection of the conductor on the substrate;

[0073] Optionally, an orthographic projection of the support portion on the substrate overlaps with an orthographic projection of the first electrode on the substrate.

[0074] In one embodiment, it further includes a light-emitting functional part and a second electrode, wherein the light-emitting functional part is disposed in the isolation opening, and the light-emitting functional part is disposed on a side of the first electrode away from the substrate, and the light-emitting functional part is spaced apart from the support part; the second electrode is disposed on a side of the light-emitting functional part away from the substrate, and the second electrode is electrically connected to the isolation structure;

[0075] Optionally, the second electrode is in contact with the extension portion near an edge of the first body wall;

[0076] Optionally, at least part of the edge of the second electrode close to the first body wall is in contact with the first body wall, or the edge of the second electrode close to the first body wall is spaced apart from the first body wall, and the edge of the second electrode close to the first body wall is in contact with the extension;

[0077] Optionally, the material of the support portion includes a conductive material;

[0078] Optionally, the material of the support portion includes titanium or molybdenum;

[0079] Optionally, the material of the blocking portion includes a conductive material or an insulating material;

[0080] Optionally, the material of the blocking portion includes titanium or molybdenum;

[0081] Optionally, the material of the conductor includes aluminum.

[0082] In one of the embodiments, it further includes a packaging portion, wherein the packaging portion covers at least a portion of a side of the corresponding second electrode away from the substrate and a side wall of the isolation structure close to the isolation opening;

[0083] Optionally, the packaging portion extends from a side wall of the isolation structure close to the isolation opening to a side of the isolation structure away from the substrate;

[0084] Optionally, the packaging portion includes a covering portion, and the covering portion covers a side of the corresponding second electrode away from the substrate and at least a portion of a side wall of the isolation structure close to the isolation opening;

[0085] Optionally, the packaging portion further comprises an extension portion connected to the covering portion, the extension portion is provided on a side of the isolation structure away from the substrate, and a side surface of the extension portion close to the substrate is spaced from a side surface of the isolation structure away from the substrate;

[0086] Optionally, it further includes a light extraction layer, wherein the light extraction layer is provided between the second electrode and the encapsulation part;

[0087] Optionally, it further comprises a first encapsulation layer and a second encapsulation layer, wherein the first encapsulation layer is disposed on a side of the encapsulation portion away from the substrate; and the second encapsulation layer is disposed on a side of the first encapsulation layer away from the substrate;

[0088] Optionally, the material of the encapsulation part and the second encapsulation layer both include inorganic materials; and the material of the first encapsulation layer includes organic materials.

[0089] According to another aspect of the present application, a display panel is provided, comprising:

[0090] substrate;

[0091] an isolation structure disposed on one side of the substrate, the isolation structure defining an isolation opening, the isolation structure comprising a conductor and a blocking portion stacked in a direction away from the substrate, the outer contour of the orthographic projection of the blocking portion on the substrate being outside the outer contour of the orthographic projection of the conductor on the substrate;

[0092] The orthographic projection of the conductor on the substrate includes a first conductive end and a second conductive end that are adjacent to each other, the orthographic projection of the blocking portion on the substrate includes a first blocking end and a second blocking end that are adjacent to each other, the first conductive end is arranged corresponding to the first blocking end, the second conductive end is arranged corresponding to the second blocking end, and the outline distance between the first conductive end and the first blocking end is smaller than the outline distance between the second conductive end and the second blocking end;

[0093] The first electrode is disposed on one side of the substrate and is arranged corresponding to the isolation opening, and the orthographic projection of the first electrode on the substrate overlaps with the orthographic projection of the isolation structure on the substrate.

[0094] In one embodiment, the conductor disposed around the isolation opening includes a first body wall surrounding the isolation opening; the orthographic projection outer contour of the first body wall on the substrate includes adjacent first contour and second contour; the orthographic projection of the first conductive end on the substrate forms the first contour; the orthographic projection of the second conductive end on the substrate forms the second contour;

[0095] The blocking portion arranged around the outer periphery of the isolation opening includes a second body wall surrounding the isolation opening; the outer contour of the orthographic projection of the second body wall on the substrate includes a first section and a second section adjacent to each other, the first section is a first blocking end, and the second section is a second blocking end;

[0096] Optionally, the orthographic projection outer contour of the first body wall on the substrate further includes a third contour, the third contour is arranged opposite to the second contour along the second direction, and the orthographic projection outer contour of the second body wall on the substrate further includes a third section, the third section corresponds to the third contour, and the distance between the third section and the third contour is greater than the distance between the first contour and the first section;

[0097] Optionally, the orthographic projection outer contour of the first body wall on the substrate further includes a fourth contour, the fourth contour is arranged opposite to the first contour along a first direction, the first direction and the second direction intersect and are perpendicular to the thickness direction of the substrate; the distance between the fourth contour and the fourth section is greater than the distance between the first contour and the first section; or, the distance between the second contour and the second section is greater than the distance between the fourth contour and the fourth section, and the distance between the third section and the third contour is greater than the distance between the fourth contour and the fourth section;

[0098] Optionally, along the first direction, there is a first distance between the first profile and the first section;

[0099] Along the second direction, there is a second distance between the second contour and the orthographic outer contour of the second segment on the substrate; the second distance is greater than the first distance;

[0100] Optionally, along the second direction, there is a third distance between the third profile and the third section; the third distance is greater than the first distance;

[0101] Optionally, along the first direction, there is a fourth distance between the fourth contour and the fourth section; the fourth distance is greater than the first distance, or the fourth distance is smaller than the second distance and smaller than the third distance.

[0102] In one embodiment, the first electrode comprises a first extension portion and a second extension portion which are located on a side of the isolation structure close to the substrate and are arranged adjacent to each other, the first extension portion extends along a first direction, the second extension portion extends along a second direction, the orthographic projection outer contour of the first extension portion on the substrate is located on a side of the first contour away from the first section; the orthographic projection outer contour of the second extension portion on the substrate is located between the second contour and the second section;

[0103] Optionally, the first electrode further includes a third extension portion, and an orthographic projection outer contour of the third extension portion on the substrate is located between the third contour and the third section;

[0104] Optionally, the first electrode includes a fourth extension portion, and an orthographic projection outer contour of the fourth extension portion on the substrate is located on a side of the fourth contour away from the fourth segment, or an orthographic projection outer contour of the fourth extension portion on the substrate is located between the fourth contour and the fourth segment.

[0105] In one embodiment, the isolation structure further includes a support portion, the support portion is disposed between the conductor and the substrate; an outer contour of an orthographic projection of the support portion on the substrate is located outside an outer contour of an orthographic projection of the conductor on the substrate;

[0106] Optionally, the support portion includes a support main portion and an extension portion, the extension portion is provided on a side of the support main portion close to the isolation opening; the orthographic projection of the support main portion on the substrate overlaps with the orthographic projection of the conductor on the substrate, and the orthographic projection of the extension portion on the substrate does not overlap with the orthographic projection of the conductor on the substrate;

[0107] Optionally, an orthographic projection of the support portion on the substrate overlaps with an orthographic projection of the first electrode on the substrate.

[0108] In one embodiment, it further includes a light-emitting functional part and a second electrode, wherein the light-emitting functional part is disposed in the isolation opening, and the light-emitting functional part is disposed on a side of the first electrode away from the substrate, and at least a portion of the light-emitting functional part is spaced apart from the support part; the second electrode is disposed on a side of the light-emitting functional part away from the substrate, and the second electrode is electrically connected to the isolation structure;

[0109] Optionally, the second electrode is in contact with the extension portion near an edge of the first body wall;

[0110] Optionally, at least part of the edge of the second electrode close to the first body wall is in contact with the first body wall, or the edge of the second electrode close to the first body wall is spaced apart from the first body wall, and the edge of the second electrode close to the first body wall is in contact with the extension;

[0111] Optionally, the material of the support portion includes a conductive material;

[0112] Optionally, the material of the support portion includes titanium or molybdenum;

[0113] Optionally, the material of the blocking portion includes a conductive material or an insulating material;

[0114] Optionally, the material of the blocking portion includes titanium or molybdenum;

[0115] Optionally, the material of the conductor includes aluminum.

[0116] According to another aspect of the present application, a display device is provided, comprising the display panel described in any of the above embodiments.

[0117] The display panel and display device provided by the embodiments of the present application are provided with a first electrode and an isolation structure, wherein the isolation structure defines an isolation opening; the first electrode is provided on one side of the substrate and is provided corresponding to the isolation opening, and the orthographic projection of the first electrode on the substrate overlaps with the orthographic projection of the isolation structure on the substrate; the first electrode comprises a first extension portion and a second extension portion which are located on a side of the isolation structure close to the substrate and are arranged adjacent to each other, the first extension portion extends along a first direction, and the second extension portion extends along a second direction; by making the orthographic projection area of ​​the first extension portion on the substrate larger than the orthographic projection area of ​​the second extension portion on the substrate, the isolation structure can be manufactured under the same etching conditions, and along the circumference of the isolation opening, the eaves of the isolation structure are of different lengths, and the eaves length of the isolation structure extending along the first direction is smaller than the eaves length of the isolation structure extending along the second direction, so that when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure close to the isolation opening can be reduced, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0118] Figure 1 A schematic diagram of the structure of a display panel provided in an embodiment of the present application.

[0119] Figure 2 Another structural schematic diagram of a display panel provided in an embodiment of the present application.

[0120] Figure 3 A structural schematic diagram of an isolation structure, a first electrode and a light-emitting functional part, a second electrode and a packaging part in a display panel provided in an embodiment of the present application.

[0121] Figure 4 A structural schematic diagram of an isolation structure, a first electrode and a light-emitting functional portion, a second electrode, a packaging portion, a first packaging layer and a second packaging layer in a display panel provided in an embodiment of the present application.

[0122] Figure 5 Another structural schematic diagram of the isolation structure, the first electrode and the light-emitting functional part, the second electrode and the packaging part in the display panel provided in an embodiment of the present application.

[0123] Figure 6Another structural schematic diagram of the isolation structure, the first electrode and the light-emitting functional part, the second electrode, the encapsulation part, the first encapsulation layer and the second encapsulation layer in the display panel provided in an embodiment of the present application.

[0124] Figure 7 A schematic diagram of the distribution of the first body wall of the conductor, the second body wall of the blocking portion, and the orthographic projection of the first electrode on the substrate in the display panel provided in an embodiment of the present application.

[0125] Figure 8 Another schematic diagram of the distribution of the first body wall of the conductor, the second body wall of the blocking portion, and the orthographic projection of the first electrode on the substrate in the display panel provided by the embodiment of the present application.

[0126] Fig. 9 The present invention provides another distribution diagram of the first body wall of the conductor, the second body wall of the blocking portion, and the orthographic projection of the first electrode on the substrate in the display panel provided by the embodiment of the present application.

[0127] Fig.10 The present invention provides another distribution diagram of the first body wall of the conductor, the second body wall of the blocking portion, and the orthographic projection of the first electrode on the substrate in the display panel provided by the embodiment of the present application.

[0128] Fig.11 A schematic diagram of the structure of a display device provided in an embodiment of the present application.

[0129] Description of reference numerals:

[0130] 1. Display device; 10. Display panel; 11. Substrate; 12. Isolation structure; 12a. Isolation opening; 121. Conductor; 121a. First body wall; 1211. First contour; 1212. Second contour; 1213. Third contour; 1214. Fourth contour; 122. Blocking portion; 122a. Second body wall; 1221. First section; 1222. Second section; 1223. Third section; 1224. Fourth section; 123. Supporting portion; 123a. Third body wall; 123a1. First sub-section; 123a2. Second sub-section; 123a3. Third sub-section; 123a4. Fourth sub-section; 1231. Supporting main portion; 1232. Extending portion; 13. First electrode; 131. First extension portion; 132. Second extension portion ; 133, third extension portion; 134, fourth extension portion; 135, main body; 14, pixel defining layer; 14a, pixel opening; 141, pixel defining portion; 141a, first side wall; 1411, fifth contour; 1412, sixth contour; 1413, seventh contour; 1414, eighth contour; 142, first recess; 143, second recess; 15, light emitting function portion; 16, second electrode; 17, light extraction layer; 181, packaging portion; 1811, covering portion; 1812, extension portion; 182, first packaging layer; 183, second packaging layer; 121b, first conductive end; 121c, second conductive end; 122b, first blocking end; 122c, second blocking end; X, first direction; Y, second direction; A, high and low break difference. DETAILED DESCRIPTION

[0131] 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.

[0132] 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.

[0133] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or there can be intervening elements. Further, when a layer is referred to as being "under" another layer, it can be directly below or there can be one or more light-emitting units. It is also understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or there can be one or more light-emitting units.

[0134] 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.

[0135] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present application.

[0136] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0137] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0138] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0139] 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 panel, an isolation structure is provided on the substrate, and the isolation structure defines an isolation port. Sub-pixels are arranged at the isolation port, and the cathode of each sub-pixel is electrically connected to the isolation structure. However, this OLED display panel has the problem of poor display effect.

[0140] After research, the inventors found that when the above-mentioned OLED display panel evaporates the light-emitting material layer, due to the different evaporation angles of the evaporation source in different directions, for example, there is a difference between the evaporation angles of the line source in the scanning direction and the evaporation source direction. The evaporation angle of the line source in the scanning direction can be adjusted by a limiting plate, thereby preventing the light-emitting material from overlapping the side wall of the isolation structure; while the evaporation angle of the line source along the evaporation source direction is inconvenient to adjust, so that the light-emitting material layer evaporated along the evaporation source direction is easily evaporated to the side wall of the isolation structure, resulting in lateral leakage between adjacent sub-pixels, causing adjacent sub-pixels to be bright, thereby reducing the display effect of the display panel.

[0141] In order to solve the above problems, embodiments of the present application provide a display panel and a display device, and each embodiment will be described below in conjunction with the accompanying drawings.

[0142] The composition, preparation and other contents of the isolation structure mentioned below are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, Further description is provided in CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0143] First, see Figure 1 and Figure 2 The 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).

[0144] Specifically, the display panel 10 includes a substrate 11, an isolation structure 12 and a first electrode 13; the isolation structure 12 is arranged on one side of the substrate 11, and the isolation structure 12 defines an isolation opening 12a; the first electrode 13 is arranged on one side of the substrate 11 and is arranged corresponding to the isolation opening 12a, and the orthographic projection of the first electrode 13 on the substrate 11 overlaps with the orthographic projection of the isolation structure 12 on the substrate 11; wherein the first electrode 13 includes a first extension portion 131 and a second extension portion 132 which are located on a side of the isolation structure 12 close to the substrate 11 and are arranged adjacent to each other, the first extension portion 131 extends along a first direction X, and the second extension portion 132 extends along a second direction Y, and the orthographic projection area of ​​the first extension portion 131 on the substrate 11 is greater than the orthographic projection area of ​​the second extension portion 132 on the substrate 11; the first direction X intersects with the second direction Y and is perpendicular to the thickness direction of the substrate 11.

[0145] It is understandable that the first electrode 13 may be an anode; an insulating film layer may be provided between the first electrode 13 and the isolation structure 12, so that the first electrode 13 and the isolation structure 12 are electrically insulated. The display panel 10 further includes a light emitting functional portion 15 and a second electrode 16 provided on a side away from the first electrode 13, the second electrode 16 is located on a side of the light emitting functional portion 15 away from the first electrode 13, the second electrode 16 may be a cathode, and the first electrode 13, the light emitting functional portion 15 and the second electrode 16 together constitute a sub-pixel.

[0146] The isolation structure 12 refers to a structure that can isolate the light-emitting material film layers of adjacent sub-pixels, thereby avoiding crosstalk between adjacent sub-pixels and improving the display effect of the display panel 10. In addition, by setting the isolation structure 12, the isolation structure 12 defines an isolation opening 12a, so that the sub-pixels can be made by a graphic lithography process, thereby eliminating FMM (Fine Metal Mask, fine metal mask), which is beneficial to improve the aperture ratio of the display panel 10 and reduce the production cost of the display panel 10. In addition, since the sub-pixels are made by a graphic lithography process, compared with the display panel 10 that uses FMM to evaporate the light-emitting elements, the sub-pixels can have richer shapes and more optimized arrangements, thereby improving the display effect.

[0147] When manufacturing the isolation structure 12, an isolation material layer is deposited on the side of the insulating film layer away from the substrate 11, and the portion of the isolation material layer away from the substrate 11 is etched using a dry process to obtain a first sub-opening. Then, a wet process is used to etch the portion of the isolation material layer close to the substrate 11, thereby obtaining an isolation structure 12 with a "large top and small bottom" bottom cut structure. That is, the isolation structure 12 corresponding to the isolation opening 12a has a "roof", so that the light-emitting material film layer and the electrode material layer in adjacent sub-pixels can be separated during the evaporation process. Since the first electrode 13 has a certain thickness, the distance between the surface of the side of the insulating film layer away from the substrate 11 and the substrate 11 is inconsistent. The distance between the surface of the side of the insulating film layer overlapped on the first electrode 13 and the substrate 11 is greater than the distance between the surface of the side of the insulating film layer not overlapped on the first electrode 13 and the substrate 11; the distance between the surface of the side of the insulating material layer not overlapped on the side of the first electrode 13 away from the substrate 11 and the substrate 11 is smaller than the distance between the surface of the side of the insulating film layer overlapped on the first electrode 13 and the substrate 11. In other words, due to the thickness of the first electrode 13, a high-low break position A is formed between the insulating material layer and the insulating film layer; when the first electrode 13 extends to the smaller part of the isolation structure 12 close to the substrate 11 (that is, the first electrode 13 The smaller the orthographic projection area of ​​the portion extending to the isolation structure 12 close to the substrate 11 on the substrate 11 is), that is, the smaller the distance between the end face of the first electrode 13 and the side wall of the first sub-opening is, the easier it is to etch the high and low break position A when the wet process is used to etch the portion of the isolation material layer close to the substrate 11, and due to the existence of the high and low break position A, the etching solution is easy to gather, thereby accelerating the wet etching of the isolation material layer. That is to say, the smaller the portion of the first electrode 13 extending to the isolation structure 12 close to the side (that is, the smaller the orthographic projection area of ​​the portion of the first electrode 13 extending to the isolation structure 12 close to the side on the substrate 11 is), the longer the eaves of the isolation structure 12 is, so that the shielding effect of the isolation structure 12 on the luminescent material layer is better, and the luminescent material layer is easier to be isolated, thereby reducing the probability of crosstalk between adjacent sub-pixels.

[0148] In this application, see Figure 1 and Figure 2The first electrode 13 includes a first extension portion 131 and a second extension portion 132 which are located on a side of the isolation structure 12 close to the substrate 11 and are arranged adjacent to each other. The first extension portion 131 extends along the first direction X, and the second extension portion 132 extends along the second direction Y. The orthographic projection area of ​​the first extension portion 131 on the substrate 11 is larger than the orthographic projection area of ​​the second extension portion 132 on the substrate 11. In this way, the isolation structure 12 can be manufactured under the same etching conditions. Along the circumference of the isolation opening 12a, the eaves of the isolation structure 12 are of different lengths. The eaves length of the isolation structure 12 along the first direction X is smaller than the eaves length of the isolation structure 12 along the second direction Y. In this way, when evaporating the luminescent material layer, the first direction X can be the scanning direction of the line source, and the second direction Y can be the evaporation source direction of the line source, thereby reducing the probability of the luminescent material layer evaporated along the evaporation source direction overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0149] In summary, the display panel 10 provided in the embodiment of the present application is provided with a first electrode 13 and an isolation structure 12, wherein the isolation structure 12 defines an isolation opening 12a; the first electrode 13 is provided on one side of the substrate 11 and is provided corresponding to the isolation opening 12a, and the orthographic projection of the first electrode 13 on the substrate 11 overlaps with the orthographic projection of the isolation structure 12 on the substrate 11; the first electrode 13 includes a first extension portion 131 and a second extension portion 132 which are located on a side of the isolation structure 12 close to the substrate 11 and are arranged adjacent to each other, the first extension portion 131 extends along a first direction X, and the second extension portion 132 extends along a second direction Y; by making the first extension portion The orthographic projection area of ​​131 on the substrate 11 is larger than the orthographic projection area of ​​the second extension portion 132 on the substrate 11. In this way, the isolation structure 12 can be manufactured under the same etching conditions. Along the circumference of the isolation opening 12a, the eaves of the isolation structure 12 are of different lengths. The length of the eaves of the isolation structure 12 extending along the first direction X is smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0150] In one embodiment, see Figure 1 and Figure 2, the isolation structure 12 includes a conductor 121 and a blocking portion 122 stacked in a direction away from the substrate 11; the outer contour of the orthographic projection of the blocking portion 122 on the substrate 11 is located outside the outer contour of the orthographic projection of the conductor 121 on the substrate 11; the outer contour of the orthographic projection of the first extension portion 131 on the substrate 11 is located within the range of the orthographic projection of the conductor 121 on the substrate 11, the orthographic projection of the second extension portion 132 on the substrate 11 does not overlap with the orthographic projection of the conductor 121 on the substrate 11, and the outer contour of the orthographic projection of the second extension portion 132 on the substrate 11 is located within the range of the orthographic projection of the blocking portion 122 on the substrate 11;

[0151] In this way, the isolation structure 12 can be made to have an undercut structure with a "large top and small bottom", so that the isolation structure 12 has a better isolation effect on the corresponding light-emitting material; in addition, the isolation structure 12 manufactured under the same etching conditions can have a spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the first extension portion 131 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the first extension portion 131, which is smaller than the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the second extension portion 132 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the second extension portion 132, that is, the length of at least part of the eaves of the isolation structure 12 extending along the first direction X is smaller than the length of at least part of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the light-emitting material layer is evaporated, the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0152] In one embodiment, see Figure 1 The first electrode 13 also includes a third extension portion 133, and the third extension portion 133 is arranged opposite to the second extension portion 132 along the second direction Y. The orthographic projection of the third extension portion 133 on the substrate 11 does not overlap with the orthographic projection of the conductor 121 on the substrate 11, and the outer contour of the orthographic projection of the third extension portion 133 on the substrate 11 is located within the orthographic projection range of the blocking portion 122 on the substrate 11.

[0153] In this way, for the isolation structure 12 manufactured under the same etching conditions, the spacing between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the first extension portion 131 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the first extension portion 131 can be smaller than the spacing between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the third extension portion 133 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the third extension portion 133, that is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the second direction Y is larger. In this way, when evaporating the luminescent material layer, the second direction Y can be made the evaporation source direction of the line source, thereby reducing the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0154] In one embodiment, see Figure 2 The first electrode 13 further includes a fourth extension portion 134 , which is arranged opposite to the first extension portion 131 along the first direction X; the outer contour of the orthographic projection of the fourth extension portion 134 on the substrate 11 is located within the orthographic projection range of the conductor 121 on the substrate 11 .

[0155] In this way, the isolation structure 12 manufactured under the same etching conditions can be such that the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the fourth extension portion 134 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the fourth extension portion 134 is smaller than the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the second extension portion 132 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the second extension portion 132, and smaller than the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the third extension portion 133 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the third extension portion 133. that is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X is less than the length of the eaves of the isolation structure 12 extending along the second direction Y. Thus, when evaporating the light-emitting material layer, the first direction X is the scanning direction of the line source, and the second direction Y is the evaporation source direction of the line source. This can reduce the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a. At the same time, it can ensure that the subsequent film layer (such as the cathode) overlaps the side wall of the conductor 121 close to the isolation opening 12a, thereby improving the lateral leakage problem while reducing the voltage drop difference and improving the display effect of the display panel 10.

[0156] In another embodiment, see Figure 7 and Fig. 9The first electrode 13 also includes a fourth extension portion 134, which is arranged opposite to the first extension portion 131 along the first direction X; the orthographic projection of the fourth extension portion 134 on the substrate 11 does not overlap with the orthographic projection of the conductor 121 on the substrate 11, and the outer contour of the orthographic projection of the fourth extension portion 134 on the substrate 11 is located within the orthographic projection range of the blocking portion 122 on the substrate 11.

[0157] In this way, for the isolation structure 12 manufactured under the same etching conditions, the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the fourth extension portion 134 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the fourth extension portion 134 can be greater than the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the first extension portion 131 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the first extension portion 131, that is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X is less than the length of the other eaves of the isolation structure 12 extending along the first direction X, and is less than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be further reduced, thereby improving the lateral leakage problem and improving the display effect of the display panel 10.

[0158] In one embodiment, see Figures 1 to 5 The first electrode 13 further includes a main body 135 , which is connected to the first extension portion 131 , the second extension portion 132 , the third extension portion 133 and the fourth extension portion 134 , and an orthographic projection of the main body 135 on the substrate 11 overlaps with an orthographic projection of the isolation opening 12 a on the substrate 11 .

[0159] In this way, it can be ensured that the first electrode 13 can be in direct contact with the light-emitting material layer, thereby ensuring normal light emission of the light-emitting material layer, and further ensuring normal display of the display panel 10.

[0160] In one embodiment, see Figure 4 and Figure 6 The first extension portion 131 and the fourth extension portion 134 are symmetrical about the second direction Y; the second extension portion 132 and the third extension portion 133 are symmetrical about the first direction X.

[0161] In this way, the production of the first electrode 13 can be facilitated. At the same time, the distribution of the length of the eaves of the isolation structure 12 corresponding to the same isolation opening 12a is regular. In the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X is less than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the luminescent material layer, the first direction X can be the scanning direction of the line source, and the second direction Y can be the evaporation source direction of the line source, thereby reducing the probability of the luminescent material layer evaporated along the evaporation source direction overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0162] In one embodiment, see Fig.10 The orthographic projection of the first electrode 13 on the substrate 11 is an axisymmetric shape.

[0163] In this way, the production of the first electrode 13 can be facilitated. At the same time, the length of the eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be made smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the light-emitting material layer, the probability of the light-emitting material layer evaporated along the evaporation source direction overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0164] In one embodiment, see Fig.10 The orthographic projection of the first electrode 13 on the substrate 11 is a rectangle. The rectangle may be a regular rectangle or a quasi-rectangular rectangle, such as a rectangle with rounded corners.

[0165] In one embodiment, two adjacent sides of the rectangle extend along a first direction X and a second direction Y respectively.

[0166] In one embodiment, see Figure 8 The orthographic projection of the first electrode 13 on the substrate 11 is a centrally symmetrical figure.

[0167] In this way, the production of the first electrode 13 can be facilitated. At the same time, the length of the eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be made smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the light-emitting material layer, the probability of the light-emitting material layer evaporated along the evaporation source direction overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0168] In one embodiment, see Figure 8The orthographic projection of the first electrode 13 on the substrate 11 is a rhombus. Specifically, the rhombus may be a conventional rhombus or a rhombus-like shape, such as a rhombus with rounded corners.

[0169] In this way, the length of the eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be set gradually, and the farther away from the end of the rhombus of the first electrode 13 along the first direction X, the smaller the length of the eaves of the isolation structure 12 extending along the first direction X. The length of the eaves of the isolation structure 12 extending along the second direction Y is also set gradually, and the closer to the end of the rhombus of the first electrode 13 along the second direction Y, the longer the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the light-emitting material layer, the first direction X can be made the scanning direction of the line source, and the second direction Y can be made the evaporation source direction of the line source, which can effectively reduce the probability of the light-emitting material layer evaporated along the evaporation source direction overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, and improve the problem of lateral leakage. At the same time, it can ensure that the subsequent film layer (for example, the cathode) overlaps the side wall of the conductor 121 close to the isolation opening 12a, reduce the voltage drop difference, and improve the display effect of the display panel 10.

[0170] In one embodiment, two diagonal lines of the rhombus extend along a first direction X and a second direction Y respectively.

[0171] In one embodiment, the first direction X and the second direction Y are perpendicular.

[0172] In one embodiment, the first direction X is parallel to one of the long side and the short side of the display panel 10 , and the second direction Y is parallel to the other of the long side and the short side of the display panel 10 .

[0173] In one embodiment, see Figure 1 and Figure 2 , Figures 7 to 10 The conductor 121 arranged around the outer periphery of the isolation opening 12a includes a first body wall 121a corresponding to the isolation opening 12a, and the orthographic projection of the first body wall 121a on the substrate 11 includes a first contour 1211 and a second contour 1212; the blocking portion 122 arranged around the outer periphery of the isolation opening 12a includes a second body wall 122a corresponding to the isolation opening 12a; the orthographic projection outer contour of the first extension portion 131 on the substrate 11 is located on the side of the first contour 1211 away from the orthographic projection outer contour of the second body wall 122a on the substrate 11; the orthographic projection of the second extension portion 132 on the substrate 11 is located between the second contour 1212 and the orthographic projection outer contour of the second body wall 122a on the substrate 11.

[0174] In this way, the distance between the end of the blocking portion 122 corresponding to the first extension portion 131 close to the isolation opening 12a and the end of the first extension portion 131 away from the center of the isolation opening 12a can be greater than the distance between the end of the blocking portion 122 corresponding to the second extension portion 132 close to the isolation opening 12a and the end of the second extension portion 132 away from the center of the isolation opening 12a. In this way, the isolation structure 12 manufactured under the same etching conditions can have the conductor 121 corresponding to the first extension portion 131 close to the side wall of the isolation opening 12a and the blocking portion 122 corresponding to the first extension portion 131 close to the isolation opening 12a. The spacing between the side walls is smaller than the spacing between the side walls of the conductor 121 corresponding to the second extension portion 132 close to the isolation opening 12a and the side walls of the blocking portion 122 corresponding to the second extension portion 132 close to the isolation opening 12a, that is, the length of at least part of the eaves of the isolation structure 12 extending along the first direction X is smaller than the length of at least part of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the light-emitting material layer is evaporated, the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0175] In one embodiment, see Figures 7 to 10 The orthographic projection of the first body wall 121a on the substrate 11 includes a third contour 1213, and the third contour 1213 is arranged opposite to the second contour 1212 along the second direction Y. The orthographic projection of the third extension portion 133 on the substrate 11 is located between the third contour 1213 and the outer contour of the orthographic projection of the second body wall 122a on the substrate 11.

[0176] In this way, the distance between the end of the blocking portion 122 corresponding to the first extension portion 131 close to the isolation opening 12a and the end of the first extension portion 131 away from the center of the isolation opening 12a can be greater than the distance between the end of the blocking portion 122 corresponding to the third extension portion 133 close to the isolation opening 12a and the end of the third extension portion 133 away from the center of the isolation opening 12a. In this way, the isolation structure 12 manufactured under the same etching conditions can have the side wall of the conductor 121 corresponding to the first extension portion 131 close to the isolation opening 12a and the side wall of the blocking portion 122 corresponding to the first extension portion 131 close to the isolation opening 12a. The spacing between the walls is smaller than the spacing between the side walls of the conductor 121 corresponding to the third extension portion 133 close to the isolation opening 12a and the side walls of the blocking portion 122 corresponding to the third extension portion 133 close to the isolation opening 12a, that is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the second direction Y is larger. In this way, when evaporating the luminescent material layer, the second direction Y can be made the evaporation source direction of the line source, thereby reducing the probability of the evaporated luminescent material layer overlapping the side walls of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0177] In one embodiment, see Figure 8 and Fig.10 The orthographic projection of the first body wall 121a on the substrate 11 includes a fourth contour 1214, and the fourth contour 1214 is arranged opposite to the first contour 1211 along the first direction X; the orthographic projection outer contour of the fourth extension portion 134 on the substrate 11 is located on the side of the fourth contour 1214 away from the orthographic projection outer contour of the second body wall 122a on the substrate 11.

[0178] That is, the outer contour of the orthographic projection of the fourth extension portion 134 on the substrate 11 is located within the range of the orthographic projection of the conductor 121 on the substrate 11. In this way, the length of the eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the light-emitting material layer, the first direction X can be the scanning direction of the line source, and the second direction Y can be the evaporation source direction of the line source, thereby reducing the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a. At the same time, it can ensure the overlap of the subsequent film layer (such as the cathode) and the side wall of the conductor 121 close to the isolation opening 12a, thereby reducing the voltage drop difference while improving the lateral leakage problem, thereby improving the display effect of the display panel 10.

[0179] In another embodiment, see Figure 7 and Fig. 9The orthographic projection of the first body wall 121a on the substrate 11 includes a fourth contour 1214, and the fourth contour 1214 is arranged opposite to the first contour 1211 along the first direction X; the orthographic projection outer contour of the fourth extension portion 134 on the substrate 11 is located between the fourth contour 1214 and the orthographic projection outer contour of the second body wall 122a on the substrate 11.

[0180] That is, the orthographic projection of the fourth extension portion 134 on the substrate 11 does not overlap with the orthographic projection of the conductor 121 on the substrate 11, and the outer contour of the orthographic projection of the fourth extension portion 134 on the substrate 11 is located within the orthographic projection range of the blocking portion 122 on the substrate 11. In this way, the length of the portion of the eaves extending along the first direction X of the isolation structure 12 corresponding to the same isolation opening 12a can be smaller than the length of the other portion of the eaves extending along the first direction X of the isolation structure 12, and smaller than the length of the eaves extending along the second direction Y of the isolation structure 12. In this way, when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be further reduced, thereby improving the lateral leakage problem and improving the display effect of the display panel 10.

[0181] In one embodiment, see Figure 8 and Fig.10 The first contour 1211 and the fourth contour 1214 are symmetrical along the second direction Y; the second contour 1212 and the third contour 1213 are symmetrical along the first direction X.

[0182] In this way, the eaves length distribution of the isolation structure 12 corresponding to the same isolation opening 12a can be regular. In the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X is smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the luminescent material layer, the first direction X can be the scanning direction of the line source, and the second direction Y can be the evaporation source direction of the line source, thereby reducing the probability of the luminescent material layer evaporated along the evaporation source direction overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0183] In one embodiment, see Fig.10 The orthographic projection of the first body wall 121a on the substrate 11 is an axisymmetric figure.

[0184] In this way, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X can be smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y, thereby reducing the probability of the light-emitting material layer evaporated along the direction of the evaporation source overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0185] For a specific example, see Fig.10 The orthographic projection of the first body wall 121a on the substrate 11 is a rectangle. The rectangle may be a regular rectangle or a quasi-rectangular rectangle, such as a rectangle with rounded corners.

[0186] In one embodiment, see Figure 8 , the orthographic projection of the first body wall 121a on the substrate 11 is a centrally symmetrical figure. In a specific example, the orthographic projection of the first body wall 121a on the substrate 11 is a rhombus; wherein the rhombus can be a regular rhombus or a rhombus-like shape, such as a rhombus with rounded corners.

[0187] In this way, the length of the eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be gradually set, and the farther away from the end of the rhombus along the first direction X, the smaller the length of the eaves of the isolation structure 12 extending along the first direction X. The length of the eaves of the isolation structure 12 extending along the second direction Y is also gradually set, and the closer to the end of the rhombus along the second direction Y, the longer the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the luminescent material layer, the first direction X is the scanning direction of the line source, and the second direction Y is the evaporation source direction of the line source, which can effectively reduce the probability of the luminescent material layer evaporated along the evaporation source direction overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, and improve the problem of lateral leakage. At the same time, it can ensure that the subsequent film layer (such as the cathode) and the conductor 121 overlap the side wall close to the isolation opening 12a, reduce the voltage drop difference, and improve the display effect of the display panel 10.

[0188] In one embodiment, see Figures 7 to 10 The orthographic outer contour of the second body wall 122a on the substrate 11 includes a first section 1221 and a second section 1222; the first section 1221 corresponds to the first contour 1211, and the second section 1222 corresponds to the second contour 1212; along the first direction X, there is a first spacing L1 between the first contour 1211 and the first section 1221; along the second direction Y, there is a second spacing L2 between the orthographic outer contours of the second contour 1212 and the second section 1222 on the substrate 11; the second spacing L2 is greater than the first spacing L1.

[0189] In this way, the length of the portion of the eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be made smaller than the length of the portion of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the luminescent material layer, the first direction X is the scanning direction of the line source, and the second direction Y is the evaporation source direction of the line source. This can effectively reduce the probability of the luminescent material layer evaporated along the evaporation source direction overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, and improve the problem of lateral leakage.

[0190] In one embodiment, see Figures 7 to 10 The orthographic outer contour of the second body wall 122a on the substrate 11 includes a third section 1223; the third section 1223 corresponds to the third contour 1213; along the second direction Y, there is a third spacing L3 between the third contour 1213 and the third section 1223; the third spacing L3 is greater than the first spacing L1.

[0191] In this way, the length of the eaves of the isolation structure 12 extending along the second direction Y corresponding to the same isolation opening 12a can be larger. In this way, when evaporating the light-emitting material layer, the second direction Y can be the evaporation source direction of the line source, thereby reducing the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0192] In one embodiment, see Figure 7 and Fig. 9 The orthographic outer contour of the second body wall 122a on the substrate 11 includes a fourth segment 1224, and the fourth segment 1224 corresponds to the fourth contour 1214; along the first direction X, there is a fourth distance L4 between the fourth contour 1214 and the fourth segment 1224; the fourth distance L4 is greater than the first distance L1.

[0193] In this way, the length of the partial eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be smaller than the length of the other partial eaves of the isolation structure 12 extending along the first direction X, and smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the luminescent material layer, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be further reduced, thereby improving the lateral leakage problem and improving the display effect of the display panel 10.

[0194] In another embodiment, see Figure 8 and Fig.10 The orthographic outer contour of the second body wall 122a on the substrate 11 includes a fourth segment 1224, and the fourth segment 1224 corresponds to the fourth contour 1214; along the first direction X, there is a fourth distance L4 between the fourth contour 1214 and the fourth segment 1224; the fourth distance L4 is smaller than the second distance L2 and smaller than the third distance L3.

[0195] In this way, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X can be smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the light-emitting material layer is evaporated, the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced. At the same time, the overlap of the subsequent film layer (such as the cathode) and the side wall of the conductor 121 close to the isolation opening 12a can be ensured, which can improve the lateral leakage problem while reducing the voltage drop difference and improving the display effect of the display panel 10.

[0196] In one embodiment, see Fig. 9 , along the first direction X, the orthographic projection outer contour of the first extension portion 131 on the substrate 11 has a fifth spacing L5 with the first section 1221; along the second direction Y, the orthographic projection outer contour of the second extension portion 132 on the substrate 11 has a sixth spacing L6 with the second section 1222; the fifth spacing L5 is greater than the sixth spacing L6.

[0197] In this way, for the isolation structure 12 manufactured under the same etching conditions, the spacing between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the first extension portion 131 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the first extension portion 131 can be smaller than the spacing between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the second extension portion 132 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the second extension portion 132, that is, the length of at least part of the eaves of the isolation structure 12 extending along the first direction X is smaller than the length of at least part of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0198] In one embodiment, see Fig. 9 , along the second direction Y, the orthographic projection outer contour of the third extension portion 133 on the substrate 11 has a seventh distance L7 with the third section 1223; the fifth distance L5 is greater than the seventh distance L7.

[0199] In this way, for the isolation structure 12 manufactured under the same etching conditions, the spacing between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the first extension portion 131 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the first extension portion 131 can be smaller than the spacing between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the third extension portion 133 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the third extension portion 133, that is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the second direction Y is larger. In this way, when evaporating the luminescent material layer, the second direction Y can be made the evaporation source direction of the line source, thereby reducing the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0200] In one embodiment, see Fig. 9 , along the first direction X, the orthographic projection outer contour of the fourth extension portion 134 on the substrate 11 and the fourth section 1224 have an eighth distance L8; the fifth distance L5 is greater than the eighth distance L8.

[0201] In this way, the isolation structure 12 manufactured under the same etching conditions can have a length of a portion of the eaves extending along the first direction X of the isolation structure 12 corresponding to the same isolation opening 12a that is smaller than the length of another portion of the eaves extending along the first direction X of the isolation structure 12, and smaller than the length of the eaves extending along the second direction Y of the isolation structure 12. In this way, when evaporating the luminescent material layer, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be further reduced, thereby improving the lateral leakage problem and improving the display effect of the display panel 10.

[0202] In another embodiment, see Fig.10 , along the first direction X, the orthographic projection outer contour of the fourth extension portion 134 on the substrate 11 and the fourth section 1224 have an eighth distance L8, and the eighth distance L8 is greater than the sixth distance L6 and greater than the seventh distance L7.

[0203] In this way, the isolation structure 12 manufactured under the same etching conditions can have a length of the eaves of the isolation structure 12 extending along the first direction X that is shorter than the length of the eaves of the isolation structure 12 extending along the second direction Y in the same isolation opening 12a. In this way, when evaporating the light-emitting material layer, the first direction X is the scanning direction of the line source, and the second direction Y is the evaporation source direction of the line source. This can effectively reduce the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a. At the same time, it can ensure the overlap of the subsequent film layer (for example, the cathode) and the side wall of the conductor 121 close to the isolation opening 12a, reduce the voltage drop difference, and improve the display effect of the display panel 10.

[0204] In one embodiment, see Figure 8 and Fig.10 The first section 1221 and the fourth section 1224 are symmetrical about the second direction Y; the second section 1222 and the third section 1223 are symmetrical about the first direction X.

[0205] In this way, the eaves length distribution of the isolation structure 12 corresponding to the same isolation opening 12a can be regular. In the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X is smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the luminescent material layer, the first direction X can be the scanning direction of the line source, and the second direction Y can be the evaporation source direction of the line source, thereby reducing the probability of the luminescent material layer evaporated along the evaporation source direction overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0206] In one embodiment, see Fig.10 The orthographic projection of the second body wall 122a on the substrate 11 is an axisymmetric figure; in a specific example, the orthographic projection of the second body wall 122a on the substrate 11 is a rectangle; the rectangle may be a conventional rectangle or a quasi-rectangular rectangle, such as a rectangle with rounded corners.

[0207] In this way, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X can be smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y, thereby reducing the probability of the light-emitting material layer evaporated along the direction of the evaporation source overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0208] In one embodiment, see Figure 8, the orthographic projection of the second body wall 122a on the substrate 11 is a centrally symmetrical figure. In a specific example, the orthographic projection of the first body wall 121a on the substrate 11 is a rhombus; wherein the rhombus can be a regular rhombus or a rhombus-like shape, such as a rhombus with rounded corners.

[0209] In this way, the length of the eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be gradually set, and the farther away from the end of the rhombus along the first direction X, the smaller the length of the eaves of the isolation structure 12 extending along the first direction X. The length of the eaves of the isolation structure 12 extending along the second direction Y is also gradually set, and the closer to the end of the rhombus along the second direction Y, the longer the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the luminescent material layer, the first direction X is the scanning direction of the line source, and the second direction Y is the evaporation source direction of the line source, which can effectively reduce the probability of the luminescent material layer evaporated along the evaporation source direction overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, and improve the problem of lateral leakage. At the same time, it can ensure that the subsequent film layer (such as the cathode) and the conductor 121 overlap the side wall close to the isolation opening 12a, reduce the voltage drop difference, and improve the display effect of the display panel 10.

[0210] In one embodiment, see Figures 1 to 5 , further comprising a pixel defining layer 14, which is disposed between the isolation structure 12 and the first electrode 13; a pixel opening 14a connected to the isolation opening 12a is opened on the pixel defining layer 14, and the pixel opening 14a exposes at least a portion of the first electrode 13.

[0211] In this way, by setting the pixel defining layer 14, the isolation structure 12 and the first electrode 13 and the first electrodes 13 can be electrically insulated; by opening a pixel opening 14a connected to the isolation opening 12a on the pixel defining layer 14, the pixel opening 14a exposes at least a portion of the first electrode 13, so that the evaporated light-emitting material layer can be in direct contact with the first electrode 13, thereby ensuring the normal display of the display panel 10.

[0212] In one embodiment, see Figures 1 to 6 The pixel defining layer 14 includes a pixel defining portion 141, which encloses a pixel opening 14a; the outer contour of the orthographic projection of the first extension portion 131 on the substrate 11 is located within the orthographic projection range of the pixel defining portion 141 on the substrate 11; the outer contour of the orthographic projection of the second extension portion 132 on the substrate 11 is located within the orthographic projection range of the pixel defining portion 141 on the substrate 11.

[0213] In one embodiment, see Figures 1 to 6The outer contour of the orthographic projection of the third extending portion 133 on the substrate 11 is located within the orthographic projection range of the pixel defining portion 141 on the substrate 11 ; the outer contour of the orthographic projection of the fourth extending portion 134 on the substrate 11 is located within the orthographic projection range of the pixel defining portion 141 on the substrate 11 .

[0214] In one embodiment, see Figure 4 and Figure 6 The pixel defining portion 141 includes a first side wall 141a surrounding the pixel opening 14a, and the orthographic projection of the first side wall 141a on the substrate 11 includes a fifth contour 1411 and a sixth contour 1412. The orthographic projection outer contour of the first extension portion 131 on the substrate 11 is located on a side of the fifth contour 1411 away from the center of the pixel opening 14a, and the orthographic projection outer contour of the second extension portion 132 on the substrate 11 is located on a side of the sixth contour 1412 away from the center of the pixel opening 14a; along the first direction X, the orthographic projection outer contour of the first extension portion 131 on the substrate 11 has a ninth spacing L9 with the fifth contour 1411; along the second direction Y, the orthographic projection outer contour of the second extension portion 132 on the substrate 11 has a tenth spacing L10 with the sixth contour 1412, and the tenth spacing L10 is smaller than the ninth spacing L9.

[0215] In this way, the distance between the end of the blocking portion 122 corresponding to the first extension portion 131 close to the isolation opening 12a and the end of the first extension portion 131 away from the center of the isolation opening 12a can be greater than the distance between the end of the blocking portion 122 corresponding to the second extension portion 132 close to the isolation opening 12a and the end of the second extension portion 132 away from the center of the isolation opening 12a, so that the length of at least part of the eaves of the isolation structure 12 extending along the first direction X can be smaller than the length of at least part of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0216] In one embodiment, see Figure 4 and Figure 6 The orthographic projection of the first side wall 141a on the substrate 11 includes a seventh contour 1413, and the orthographic projection outer contour of the third extension portion 133 on the substrate 11 is located on the side of the seventh contour 1413 away from the center of the pixel opening 14a; along the second direction Y, there is an eleventh distance L11 between the orthographic projection outer contour of the third extension portion 133 on the substrate 11 and the seventh contour 1413, and the eleventh distance L11 is smaller than the ninth distance L9.

[0217] In this way, the distance between the end of the blocking portion 122 corresponding to the first extension portion 131 close to the isolation opening 12a and the end of the first extension portion 131 away from the center of the isolation opening 12a can be greater than the distance between the end of the blocking portion 122 corresponding to the third extension portion 133 close to the isolation opening 12a and the end of the third extension portion 133 away from the center of the isolation opening 12a, so that the length of the eaves extending along the second direction Y of the isolation structure 12 in the same isolation opening 12a can be larger. In this way, when evaporating the luminescent material layer, the second direction Y can be made the evaporation source direction of the line source, thereby reducing the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0218] In one embodiment, the orthographic projection of the first side wall 141a on the substrate 11 includes an eighth contour 1414, and the orthographic projection outer contour of the fourth extension portion 134 on the substrate 11 is located on the side of the seventh contour 1413 away from the center of the pixel opening 14a; along the first direction X, there is a twelfth spacing L12 between the orthographic projection outer contour of the fourth extension portion 134 on the substrate 11 and the eighth contour 1414; the twelfth spacing L12 is smaller than the ninth spacing L9.

[0219] In this way, the distance between the end of the blocking portion 122 corresponding to the first extension portion 131 close to the isolation opening 12a and the end of the first extension portion 131 away from the center of the isolation opening 12a can be greater than the distance between the end of the blocking portion 122 corresponding to the fourth extension portion 134 close to the isolation opening 12a and the end of the fourth extension portion 134 away from the center of the isolation opening 12a. In this way, the length of the partial eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be smaller than the length of the other partial eaves of the isolation structure 12 extending along the first direction X, and smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be further reduced, thereby improving the lateral leakage problem and improving the display effect of the display panel 10.

[0220] In another embodiment, see Figure 4 The orthographic projection of the first side wall 141a on the substrate 11 includes an eighth contour 1414, and the orthographic projection outer contour of the fourth extension portion 134 on the substrate 11 is located on the side of the seventh contour 1413 away from the center of the pixel opening 14a; along the first direction X, there is a twelfth spacing L12 between the orthographic projection outer contour of the fourth extension portion 134 on the substrate 11 and the eighth contour 1414; the twelfth spacing L12 is greater than the tenth spacing L10 and greater than the eleventh spacing L11.

[0221] In this way, the distance between the end of the blocking portion 122 corresponding to the fourth extension portion 134 close to the isolation opening 12a and the end of the fourth extension portion 134 away from the center of the isolation opening 12a can be greater than the distance between the end of the blocking portion 122 corresponding to the second extension portion 132 close to the isolation opening 12a and the end of the second extension portion 132 away from the center of the isolation opening 12a, and greater than the distance between the end of the blocking portion 122 corresponding to the third extension portion 133 close to the isolation opening 12a and the end of the third extension portion 133 away from the center of the isolation opening 12a. In this way, the length of the eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the light-emitting material layer is evaporated, the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced. At the same time, the overlap of the subsequent film layer (for example, the cathode) and the side wall of the conductor 121 close to the isolation opening 12a can be ensured, thereby reducing the voltage drop difference and improving the display effect of the display panel 10.

[0222] In one embodiment, see Figure 1 and Figure 2 A first recess 142 and a second recess 143 are provided on a surface of one side of the pixel defining portion 141 close to the isolation structure 12, the first recess 142 is located on the side of the isolation structure 12 facing the isolation opening 12a, and the orthographic projection of the conductor 121 on the substrate 11 at least partially overlaps with the orthographic projection of the first recess 142 on the substrate 11; the orthographic projection of the conductor 121 on the substrate 11 covers the orthographic projection of the second recess 143 on the substrate 11.

[0223] In one embodiment, see Figure 1 and Figure 2 , the orthographic projection of the first recess 142 on the substrate 11 does not overlap with the orthographic projection of the first electrode 13 on the substrate 11 .

[0224] In one embodiment, see Figure 1 The orthographic projection of the first recessed portion 142 on the substrate 11 is located on the side of the projection of the first extending portion 131 on the substrate 11 away from the isolation opening 12 a.

[0225] In one embodiment, see Figure 2 The orthographic projection of the second recess 143 on the substrate 11 is located between the orthographic projections of the second extension portions 132 of the adjacent first electrodes 13 on the substrate 11 .

[0226] In one embodiment, the material of the pixel defining layer 14 includes an inorganic material.

[0227] In this way, the pixel defining layer 14 can play a role in blocking moisture, thereby improving the reliability of the display panel 10 .

[0228] In one embodiment, see Figure 1 and Figure 2 One end of the blocking portion 122 close to the isolation opening 12a extends toward the center of the isolation opening 12a and protrudes from the side wall of the conductor 121 close to the isolation opening 12a; the conductor 121 arranged around the outer periphery of the isolation opening 12a includes a first body wall 121a surrounding the isolation opening 12a; the first extension portion 131 is arranged between part of the conductor 121 and the substrate 11; the second extension portion 132 is arranged between the part of the blocking portion 122 protruding from the first body wall 121a and the substrate 11.

[0229] In other words, see Figure 1 and Figure 2 The orthographic projection of the first extension portion 131 on the substrate 11 overlaps with the orthographic projection of the conductor 121 on the substrate 11; the orthographic projection of the second extension portion 132 on the substrate 11 overlaps with the orthographic projection of the portion of the blocking portion 122 protruding from the first body wall 121a on the substrate 11.

[0230] In this way, the distance between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the first extension portion 131 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the first extension portion 131 can be smaller than the distance between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the second extension portion 132 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the second extension portion 132, that is, the length of at least part of the eaves of the isolation structure 12 extending along the first direction X is smaller than the length of at least part of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0231] In one embodiment, see Figure 1 The third extending portion 133 is disposed between a portion of the blocking portion 122 protruding from the first body wall 121 a and the substrate 11 .

[0232] In other words, see Figure 1 The orthographic projection of the third extending portion 133 on the substrate 11 partially overlaps with the orthographic projection of the portion of the blocking portion 122 protruding from the first body wall 121 a on the substrate 11 .

[0233] In this way, the distance between the side wall of the conductor 121 corresponding to the first extension portion 131 close to the isolation opening 12a and the side wall of the blocking portion 122 corresponding to the first extension portion 131 close to the isolation opening 12a is smaller than the distance between the side wall of the conductor 121 corresponding to the third extension portion 133 close to the isolation opening 12a and the side wall of the blocking portion 122 corresponding to the third extension portion 133 close to the isolation opening 12a, that is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the second direction Y is larger. In this way, when evaporating the luminescent material layer, the second direction Y can be made the evaporation source direction of the line source, thereby reducing the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0234] In one embodiment, see Figure 2 The fourth extension portion 134 is disposed between a portion of the conductor 121 and the substrate 11 .

[0235] In other words, see Figure 2 , the orthographic projection of the fourth extension portion 134 on the substrate 11 partially overlaps with the orthographic projection of the conductor 121 on the substrate 11 .

[0236] In this way, the distance between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the fourth extension portion 134 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the fourth extension portion 134 can be smaller than the distance between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the second extension portion 132 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the second extension portion 132, and smaller than the distance between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the third extension portion 133 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the third extension portion 133; That is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X is less than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the light-emitting material layer, the first direction X is the scanning direction of the line source, and the second direction Y is the evaporation source direction of the line source. This can reduce the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a. At the same time, it can ensure that the subsequent film layer (for example, the cathode) and the side wall of the conductor 121 close to the isolation opening 12a overlap, thereby improving the lateral leakage problem while reducing the voltage drop difference and improving the display effect of the display panel 10.

[0237] In another embodiment, the fourth extending portion 134 is disposed between the portion of the blocking portion 122 protruding from the first body wall 121 a and the substrate 11 .

[0238] In other words, the orthographic projection of the fourth extending portion 134 on the substrate 11 partially overlaps with the orthographic projection of the portion of the blocking portion 122 protruding from the first body wall 121 a on the substrate 11 .

[0239] In this way, the distance between the side wall of the isolation opening 12a of the conductor 121 corresponding to the fourth extension portion 134 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the fourth extension portion 134 can be greater than the distance between the side wall of the isolation opening 12a of the conductor 121 corresponding to the first extension portion 131 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the first extension portion 131, that is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X is less than the length of the other eaves of the isolation structure 12 extending along the first direction X, and is less than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be further reduced, thereby improving the lateral leakage problem and improving the display effect of the display panel 10.

[0240] In one embodiment, see Figures 1 to 6 The isolation structure 12 further includes a support portion 123, which is disposed between the conductor 121 and the substrate 11; the outer contour of the orthographic projection of the support portion 123 on the substrate 11 is located outside the outer contour of the orthographic projection of the conductor 121 on the substrate 11. It is understood that the support portion 123 can be made of insulating material or conductive material.

[0241] In one embodiment, see Figure 1 and Figure 2 The support portion 123 arranged around the outer periphery of the isolation opening 12a includes a third body wall 123a corresponding to the isolation opening 12a; the outer contour of the orthographic projection of the third body wall 123a on the substrate 11 includes a first sub-segment 123a1 and a second sub-segment 123a2; the first sub-segment 123a1 corresponds to the first contour 1211, and the second sub-segment 123a2 corresponds to the second contour 1212; the distance between the second sub-segment 123a2 and the second contour 1212 is greater than the distance between the first sub-segment 123a1 and the first contour 1211.

[0242] In this way, the probability of the light-emitting material layer overlapping the side wall of the conductor 121 near the isolation opening 12a can be reduced. At the same time, the subsequent film layer (such as the cathode) can be electrically connected to the conductor 121 with the help of the support portion 123, thereby improving the problem of lateral leakage and reducing the voltage drop difference, thereby improving the display effect of the display panel 10.

[0243] In one embodiment, see Figure 1 and Figure 2The orthographic outer contour of the third body wall 123a on the substrate 11 also includes a third sub-segment 123a3, the third sub-segment 123a3 corresponds to the third contour 1213, and the distance between the third sub-segment 123a3 and the third contour 1213 is greater than the distance between the first sub-segment 123a1 and the first contour 1211.

[0244] In this way, the probability of the light-emitting material layer overlapping the side wall of the conductor 121 near the isolation opening 12a can be reduced. At the same time, the subsequent film layer (such as the cathode) can be electrically connected to the conductor 121 with the help of the support portion 123, thereby improving the problem of lateral leakage and reducing the voltage drop difference, thereby improving the display effect of the display panel 10.

[0245] In one embodiment, the orthographic outer contour of the third body wall 123a on the substrate 11 also includes a fourth sub-segment 123a4, the fourth sub-segment 123a4 corresponds to the fourth contour 1214, and the distance between the fourth sub-segment 123a4 and the fourth contour 1214 is greater than the distance between the first sub-segment 123a1 and the first contour 1211.

[0246] In this way, the probability of the light-emitting material layer overlapping the side wall of the conductor 121 near the isolation opening 12a can be reduced. At the same time, the subsequent film layer (such as the cathode) can be electrically connected to the conductor 121 with the help of the support portion 123, thereby improving the problem of lateral leakage and reducing the voltage drop difference, thereby improving the display effect of the display panel 10.

[0247] In another embodiment, see Figure 1 and Figure 2 The outer contour of the orthographic projection of the third body wall 123a on the substrate 11 also includes a fourth sub-segment 123a4, and the fourth sub-segment 123a4 corresponds to the fourth contour 1214; the distance between the second sub-segment 123a2 and the second contour 1212 is greater than the distance between the fourth sub-segment 123a4 and the fourth contour 1214, and the distance between the third sub-segment 123a3 and the third contour 1213 is greater than the distance between the fourth sub-segment 123a4 and the fourth contour 1214.

[0248] In this way, the probability of the light-emitting material layer overlapping the side wall of the conductor 121 near the isolation opening 12a can be reduced. At the same time, the subsequent film layer (such as the cathode) can be electrically connected to the conductor 121 with the help of the support portion 123, thereby improving the problem of lateral leakage and reducing the voltage drop difference, thereby improving the display effect of the display panel 10.

[0249] In one embodiment, see Figure 1The supporting portion 123 includes a supporting main portion 1231 and an extending portion 1232, wherein the extending portion 1232 is disposed on a side of the supporting main portion 1231 close to the isolation opening 12a; the orthographic projection of the supporting main portion 1231 on the substrate 11 overlaps with the orthographic projection of the conductor 121 on the substrate 11, and the orthographic projection of the extending portion 1232 on the substrate 11 does not overlap with the orthographic projection of the conductor 121 on the substrate 11.

[0250] In this way, on the one hand, the supporting portion 123 can have better supporting performance, and on the other hand, the protruding portion 1232 can serve as a step to facilitate the subsequent film layer (for example, the cathode) to climb along the protruding portion 1232 to the side wall of the conductor 121 close to the isolation opening 12a, thereby improving the electrical connection performance between the subsequent film layer (cathode) and the conductor 121.

[0251] In one embodiment, see Figure 1 , the orthographic projection of the support portion 123 on the substrate 11 overlaps with the orthographic projection of the first electrode 13 on the substrate 11 .

[0252] In one embodiment, see Figures 3 to 6 , and also includes a light-emitting functional part 15 and a second electrode 16. The light-emitting functional part 15 is arranged in the isolation opening 12a, and the light-emitting functional part 15 is arranged on the side of the first electrode 13 away from the substrate 11, and the light-emitting functional part 15 is spaced apart from the supporting part 123; the second electrode 16 is arranged on the side of the light-emitting functional part 15 away from the substrate 11, and the second electrode 16 is electrically connected to the isolation structure 12.

[0253] In this way, by spacing the light-emitting functional portion 15 from the support portion 123 and electrically connecting the second electrode 16 to the isolation structure 12 , the lateral leakage problem can be improved, while the voltage drop difference can be reduced, thereby improving the display effect of the display panel 10 .

[0254] It can be understood that the light-emitting functional part 15 includes multiple functional layers, including a light-emitting layer (Emissionlayer, EML), and further, may 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 15 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. The second electrode 16 may be a cathode.

[0255] In one embodiment, see Figures 3 to 6 The second electrode 16 is close to the edge of the first body wall 121 a and contacts the protruding portion 1232 .

[0256] In this way, the protruding portion 1232 of the support portion 123 can constitute a conductive foot, and the second electrode 16 can be overlapped on the protruding portion 1232 of the support portion 123 , thereby achieving electrical connection between the second electrode 16 and the isolation structure 12 .

[0257] In one embodiment, see Figures 3 to 6 The second electrode 16 is close to at least a portion of the edge of the first body wall 121 a and contacts the first body wall 121 a.

[0258] In this way, the electrical connection performance between the second electrode 16 and the conductor 121 can be improved.

[0259] In another embodiment, the second electrode 16 is spaced apart from the first body wall 121 a near an edge of the first body wall 121 a , and the edge of the second electrode 16 near the first body wall 121 a contacts the protruding portion 1232 .

[0260] In this way, the protruding portion 1232 of the support portion 123 can constitute a conductive foot, and the second electrode 16 can be overlapped on the protruding portion 1232 of the support portion 123 , thereby achieving electrical connection between the second electrode 16 and the isolation structure 12 .

[0261] In one embodiment, the material of the support portion 123 includes a conductive material.

[0262] In one embodiment, the material of the support portion 123 includes titanium or molybdenum.

[0263] In one embodiment, the material of the blocking portion 122 includes a conductive material or an insulating material.

[0264] In one embodiment, the material of the blocking portion 122 includes titanium or molybdenum.

[0265] In one embodiment, the material of the conductor 121 includes aluminum.

[0266] In one embodiment, see Figures 3 to 6 The display panel 10 further includes a packaging portion 181 , which covers a side of the corresponding second electrode 16 away from the substrate 11 and at least a portion of a side wall of the isolation structure 12 close to the isolation opening 12 a .

[0267] In this way, packaging protection can be provided to the second electrode 16 and the light-emitting functional part 15 , thereby reducing the probability of water vapor corrosion of the second electrode 16 and the light-emitting functional part 15 , thereby ensuring the display effect of the display panel 10 .

[0268] In one embodiment, see Figures 3 to 6 The packaging portion 181 extends from a side wall of the isolation structure 12 close to the isolation opening 12 a to a side of the isolation structure 12 away from the substrate 11 .

[0269] In this way, the packaging reliability of the packaging portion 181 can be improved, and the probability of water vapor corrosion of the second electrode 16 and the light-emitting functional portion 15 can be further reduced, thereby ensuring the display effect of the display panel 10 .

[0270] In one embodiment, see Figure 3 and Figure 5 The packaging portion 181 includes a covering portion 1811, and the covering portion 1811 covers a side of the corresponding second electrode 16 away from the substrate 11 and at least a portion of a side wall of the isolation structure 12 close to the isolation opening 12a;

[0271] In this way, the covering portion 1811 can provide packaging protection for the second electrode 16 and the light-emitting functional portion 15 , thereby reducing the probability of moisture corrosion of the second electrode and the light-emitting functional portion 15 , thereby ensuring the display effect of the display panel 10 .

[0272] In one embodiment, see Figure 3 and Figure 5 The packaging portion 181 also includes an extension portion 1812 connected to the covering portion 1811 , the extension portion is arranged on a side of the isolation structure 12 away from the substrate 11 , and a side surface of the extension portion 1812 close to the substrate 11 is spaced from a side surface of the isolation structure 12 away from the substrate 11 .

[0273] In this way, the contact area between the packaging part 181 and the film layer in the display panel 10 can be increased, thereby improving the connection stability of the packaging part 181 .

[0274] In one embodiment, see Figures 3 to 6 , further comprising a light extraction layer 17 , which is disposed between the second electrode 16 and the encapsulation portion 181 .

[0275] In this way, by providing the light extraction layer 17 , the light extraction efficiency of the display panel 10 can be effectively improved, thereby reducing the power consumption of the display panel 10 .

[0276] In one embodiment, see Figure 4 and Figure 6 , further comprising a first encapsulation layer 182 and a second encapsulation layer 183 , wherein the first encapsulation layer 182 is disposed on a side of the encapsulation portion 181 away from the substrate 11 ; and the second encapsulation layer 183 is disposed on a side of the first encapsulation layer 182 away from the substrate 11 .

[0277] In this way, multi-layer encapsulation can be implemented through the first encapsulation layer 182 , the second encapsulation layer 183 and the encapsulation part 181 , thereby improving the encapsulation reliability of the display panel 10 and improving the reliability of the display panel 10 .

[0278] In one embodiment, the materials of the encapsulation portion 181 and the second encapsulation layer 183 both include inorganic materials; and the material of the first encapsulation layer 182 includes organic materials.

[0279] In this way, the display panel 10 is protected by stacking the inorganic layer and the organic layer. Inorganic materials generally have good compactness and can isolate water vapor and oxygen. Organic materials have flexible characteristics. Using organic materials as a layer of the first encapsulation layer 182 can buffer stress from the outside, prevent the display panel 10 from being affected by external stress and affect the display effect. At the same time, it can reduce the risk of encapsulation failure caused by inorganic layer breakage.

[0280] Second, see Figure 1 , Figure 2 , Figures 7 to 10The embodiment of the present application provides a display panel 10, including a substrate 11, an isolation structure 12 and a first electrode 13; the isolation structure 12 is arranged on one side of the substrate 11, the isolation structure 12 defines an isolation opening 12a, the isolation structure 12 includes a conductor 121 and a blocking portion 122 stacked in a direction away from the substrate 11, the outer contour of the orthographic projection of the blocking portion 122 on the substrate 11 is located outside the outer contour of the orthographic projection of the conductor 121 on the substrate 11; the orthographic projection of the conductor 121 on the substrate 11 includes adjacent first conductive ends 121b and second conductive ends 121c, the blocking portion 122 The orthographic projection on the substrate 11 includes adjacent first blocking ends 122b and second blocking ends 122c, the first conductive end 121b is arranged corresponding to the first blocking end 122b, the second conductive end 121c is corresponding to the second blocking end 122c, and the contour distance between the first conductive end 121b and the first blocking end 122b is smaller than the contour distance between the second conductive end 121c and the second blocking end 122c; the first electrode 13 is arranged on one side of the substrate 11 and is arranged corresponding to the isolation opening 12a, and the orthographic projection of the first electrode 13 on the substrate 11 overlaps with the orthographic projection of the isolation structure 12 on the substrate 11.

[0281] It can be understood that the outline distance between the first conductive end 121b and the first blocking end 122b refers to the distance between the first conductive end 121b and the first blocking end 122b along the first direction X; the outline distance between the second conductive end 121c and the second blocking end 122c refers to the distance between the second conductive end 121c and the second blocking end 122c along the second direction Y. The first direction X can be the scanning direction of the line source, and the second direction Y can be the evaporation source direction of the line source.

[0282] The display panel 10 provided in the embodiment of the present application is configured such that the orthographic projection of the conductor 121 of the isolation structure 12 on the substrate 11 includes adjacent first conductive ends 121b and second conductive ends 121c, and the orthographic projection of the blocking portion 122 of the isolation structure 12 on the substrate 11 includes adjacent first blocking ends 122b and second blocking ends 122c, the first conductive end 121b is arranged corresponding to the first blocking end 122b, the second conductive end 121c is arranged corresponding to the second blocking end 122c, and the contour distance between the first conductive end 121b and the first blocking end 122b is smaller than the contour distance between the second conductive end 121c and the second blocking end 122c. In this way, when the light-emitting material layer is evaporated, the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced, thereby improving the problem of lateral leakage current, which is beneficial to improving the display effect of the display panel 10.

[0283] In one embodiment, see Figure 1 , Figure 2 , Figures 7 to 10The conductor 121 arranged around the outer periphery of the isolation opening 12a includes a first body wall 121a surrounding the isolation opening 12a; the outer contour of the orthographic projection of the first body wall 121a on the substrate 11 includes adjacent first contours 1211 and second contours 1212; the orthographic projection of the first conductive end 121b on the substrate 11 forms the first contour 1211; the orthographic projection of the second conductive end 121c on the substrate 11 forms the second contour 1212; the blocking portion 122 arranged around the outer periphery of the isolation opening 12a includes a second body wall 122a surrounding the isolation opening 12a; the outer contour of the orthographic projection of the second body wall 122a on the substrate 11 includes adjacent first sections 1221 and second sections 1222, the first section 1221 is the first blocking end 122b, and the second section 1222 is the second blocking end 122c.

[0284] In one embodiment, see Figures 7 to 10 The orthographic outer contour of the first body wall 121a on the substrate 11 also includes a third contour 1213, and the third contour 1213 is arranged opposite to the second contour 1212 along the second direction Y. The orthographic outer contour of the second body wall 122a on the substrate 11 also includes a third segment 1223, and the third segment 1223 corresponds to the third contour 1213. The distance between the third segment 1223 and the third contour 1213 is greater than the distance between the first contour 1211 and the first segment 1221.

[0285] In this way, the length of the eaves of the isolation structure 12 extending along the second direction Y corresponding to the same isolation opening 12a can be larger. In this way, when evaporating the light-emitting material layer, the second direction Y can be the evaporation source direction of the line source, thereby reducing the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0286] In one embodiment, see Figure 7 and Fig. 9 The orthographic outer contour of the first body wall 121a on the substrate 11 also includes a fourth contour 1214, which is arranged opposite to the first contour 1211 along the first direction X, and the first direction X and the second direction Y intersect and are perpendicular to the thickness direction of the substrate 11; the distance between the fourth contour 1214 and the fourth segment 1224 is greater than the distance between the first contour 1211 and the first segment 1221.

[0287] In this way, the length of the partial eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be smaller than the length of the other partial eaves of the isolation structure 12 extending along the first direction X, and smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the luminescent material layer, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be further reduced, thereby improving the lateral leakage problem and improving the display effect of the display panel 10.

[0288] In another embodiment, see Figure 8 and Fig.10 The orthographic outer contour of the first body wall 121a on the substrate 11 also includes a fourth contour 1214, which is arranged opposite to the first contour 1211 along the first direction X, and the first direction X and the second direction Y intersect and are perpendicular to the thickness direction of the substrate 11; the distance between the second contour 1212 and the second section 1222 is greater than the distance between the fourth contour 1214 and the fourth section 1224, and the distance between the third section 1223 and the third contour 1213 is greater than the distance between the fourth contour 1214 and the fourth section 1224.

[0289] In this way, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X can be smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the light-emitting material layer is evaporated, the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced. At the same time, the overlap of the subsequent film layer (such as the cathode) and the side wall of the conductor 121 close to the isolation opening 12a can be ensured, which can improve the lateral leakage problem while reducing the voltage drop difference and improving the display effect of the display panel 10.

[0290] In one embodiment, see Figures 7 to 10 Along the first direction X, there is a first spacing L1 between the first contour 1211 and the first section 1221; along the second direction Y, there is a second spacing L2 between the second contour 1212 and the orthographic outer contour of the second section 1222 on the substrate 11; the second spacing L2 is greater than the first spacing L1.

[0291] In this way, within the same isolation opening 12a, the length of at least part of the eaves of the isolation structure 12 extending along the first direction X can be smaller than the length of at least part of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the light-emitting material layer, the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced. At the same time, the overlap of the subsequent film layer (for example, the cathode) and the side wall of the conductor 121 close to the isolation opening 12a can be ensured, which can improve the lateral leakage problem while reducing the voltage drop difference and improving the display effect of the display panel 10.

[0292] In one embodiment, see Figures 7 to 10 , along the second direction Y, there is a third distance L3 between the third profile 1213 and the third section 1223; the third distance L3 is greater than the first distance L1.

[0293] In this way, the length of the eaves of the isolation structure 12 extending along the second direction Y corresponding to the same isolation opening 12a can be larger. In this way, when evaporating the light-emitting material layer, the second direction Y can be the evaporation source direction of the line source, thereby reducing the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0294] In one embodiment, see Figure 7 and Fig. 9 , along the first direction X, there is a fourth distance L4 between the fourth profile 1214 and the fourth section 1224; the fourth distance L4 is greater than the first distance L1.

[0295] In this way, the length of the partial eaves of the isolation structure 12 extending along the first direction X in the same isolation opening 12a can be smaller than the length of the other partial eaves of the isolation structure 12 extending along the first direction X, and smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when evaporating the luminescent material layer, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be further reduced, thereby improving the lateral leakage problem and improving the display effect of the display panel 10.

[0296] In another embodiment, see Figure 8 and Fig.10 , along the first direction X, there is a fourth distance L4 between the fourth profile 1214 and the fourth section 1224; the fourth distance L4 is smaller than the second distance L2 and smaller than the third distance L3.

[0297] In this way, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X can be smaller than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the light-emitting material layer is evaporated, the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced. At the same time, the overlap of the subsequent film layer (such as the cathode) and the side wall of the conductor 121 close to the isolation opening 12a can be ensured, which can improve the lateral leakage problem while reducing the voltage drop difference and improving the display effect of the display panel 10.

[0298] In one embodiment, see Figures 7 to 10The first electrode 13 includes a first extension portion 131 and a second extension portion 132 which are located on a side of the isolation structure 12 close to the substrate 11 and are arranged adjacent to each other. The first extension portion 131 extends along a first direction X, and the second extension portion 132 extends along a second direction Y. The orthographic outer contour of the first extension portion 131 on the substrate 11 is located on a side of the first contour 1211 away from the first section 1221; the orthographic outer contour of the second extension portion 132 on the substrate 11 is located between the second contour 1212 and the second section 1222.

[0299] In this way, for the isolation structure 12 manufactured under the same etching conditions, the spacing between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the first extension portion 131 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the first extension portion 131 can be smaller than the spacing between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the second extension portion 132 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the second extension portion 132, that is, the length of at least part of the eaves of the isolation structure 12 extending along the first direction X is smaller than the length of at least part of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be reduced, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0300] In one embodiment, see Figures 7 to 10 The first electrode 13 further includes a third extension portion 133 , and an orthographic projection outer contour of the third extension portion 133 on the substrate 11 is located between the third contour 1213 and the third section 1223 .

[0301] In this way, for the isolation structure 12 manufactured under the same etching conditions, the spacing between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the first extension portion 131 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the first extension portion 131 can be smaller than the spacing between the side wall of the isolation opening 12a close to the conductor 121 corresponding to the third extension portion 133 and the side wall of the isolation opening 12a close to the blocking portion 122 corresponding to the third extension portion 133, that is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the second direction Y is larger. In this way, when evaporating the luminescent material layer, the second direction Y can be made the evaporation source direction of the line source, thereby reducing the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a, thereby improving the problem of lateral leakage, which is beneficial to improving the display effect of the display panel 10.

[0302] In one embodiment, see Figure 8 and Fig.10The first electrode 13 further includes a fourth extension portion 134 , and an orthographic projection outer contour of the fourth extension portion 134 on the substrate 11 is located on a side of the fourth contour 1214 away from the fourth section 1224 .

[0303] In this way, the isolation structure 12 manufactured under the same etching conditions can be such that the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the fourth extension portion 134 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the fourth extension portion 134 is smaller than the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the second extension portion 132 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the second extension portion 132, and smaller than the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the third extension portion 133 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the third extension portion 133. that is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X is less than the length of the eaves of the isolation structure 12 extending along the second direction Y. Thus, when evaporating the light-emitting material layer, the first direction X is the scanning direction of the line source, and the second direction Y is the evaporation source direction of the line source. This can reduce the probability of the evaporated light-emitting material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a. At the same time, it can ensure that the subsequent film layer (such as the cathode) overlaps the side wall of the conductor 121 close to the isolation opening 12a, thereby improving the lateral leakage problem while reducing the voltage drop difference and improving the display effect of the display panel 10.

[0304] In another embodiment, see Figure 7 and Fig. 9 The first electrode 13 further includes a fourth extension portion 134 , and an orthographic projection outer contour of the fourth extension portion 134 on the substrate 11 is located between the fourth contour 1214 and the fourth section 1224 .

[0305] In this way, for the isolation structure 12 manufactured under the same etching conditions, the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the fourth extension portion 134 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the fourth extension portion 134 can be greater than the spacing between the side wall of the isolation opening 12a of the conductor 121 corresponding to the first extension portion 131 and the side wall of the isolation opening 12a of the blocking portion 122 corresponding to the first extension portion 131, that is, within the same isolation opening 12a, the length of the eaves of the isolation structure 12 extending along the first direction X is less than the length of the other eaves of the isolation structure 12 extending along the first direction X, and is less than the length of the eaves of the isolation structure 12 extending along the second direction Y. In this way, when the luminescent material layer is evaporated, the probability of the evaporated luminescent material layer overlapping the side wall of the isolation structure 12 close to the isolation opening 12a can be further reduced, thereby improving the lateral leakage problem and improving the display effect of the display panel 10.

[0306] In one embodiment, see Figure 1 to Figure 2 The isolation structure 12 further includes a support portion 123 , which is disposed between the conductor 121 and the substrate 11 ; an outer contour of an orthographic projection of the support portion 123 on the substrate 11 is located outside an outer contour of an orthographic projection of the conductor 121 on the substrate 11 .

[0307] In one embodiment, see Figures 1 to 6 The supporting portion 123 includes a supporting main portion 1231 and an extending portion 1232, wherein the extending portion 1232 is disposed on a side of the supporting main portion 1231 close to the isolation opening 12a; the orthographic projection of the supporting main portion 1231 on the substrate 11 overlaps with the orthographic projection of the conductor 121 on the substrate 11, and the orthographic projection of the extending portion 1232 on the substrate 11 does not overlap with the orthographic projection of the conductor 121 on the substrate 11.

[0308] In this way, on the one hand, the supporting portion 123 can have better supporting performance, and on the other hand, the protruding portion 1232 can serve as a step to facilitate the subsequent film layer (for example, the cathode) to climb along the protruding portion 1232 to the side wall of the conductor 121 close to the isolation opening 12a, thereby improving the electrical connection performance between the subsequent film layer (cathode) and the conductor 121.

[0309] In one embodiment, see Figures 1 to 6 , the orthographic projection of the support portion 123 on the substrate 11 overlaps with the orthographic projection of the first electrode 13 on the substrate 11 .

[0310] In one embodiment, see Figures 3 to 6, also includes a light-emitting functional part 15 and a second electrode 16, the light-emitting functional part 15 is arranged in the isolation opening 12a, and the light-emitting functional part 15 is arranged on the side of the first electrode 13 away from the substrate 11, and at least part of the light-emitting functional part 15 is spaced apart from the supporting part 123; the second electrode 16 is arranged on the side of the light-emitting functional part 15 away from the substrate 11, and the second electrode 16 is electrically connected to the isolation structure 12.

[0311] In this way, by spacing the light-emitting functional portion 15 from the support portion 123 and electrically connecting the second electrode 16 to the isolation structure 12 , the lateral leakage problem can be improved, while the voltage drop difference can be reduced, thereby improving the display effect of the display panel 10 .

[0312] In one embodiment, see Figures 3 to 6 The second electrode 16 is close to the edge of the first body wall 121 a and contacts the protruding portion 1232 .

[0313] In this way, the protruding portion 1232 of the support portion 123 can constitute a conductive foot, and the second electrode 16 can be overlapped on the protruding portion 1232 of the support portion 123 , thereby achieving electrical connection between the second electrode 16 and the isolation structure 12 .

[0314] In one embodiment, see Figures 3 to 6 The second electrode 16 is close to at least a portion of the edge of the first body wall 121 a and contacts the first body wall 121 a.

[0315] In this way, the electrical connection performance between the second electrode 16 and the conductor 121 can be improved.

[0316] In another embodiment, the second electrode 16 is spaced apart from the first body wall 121 a near an edge of the first body wall 121 a , and the edge of the second electrode 16 near the first body wall 121 a contacts the protruding portion 1232 .

[0317] In this way, the protruding portion 1232 of the support portion 123 can constitute a conductive foot, and the second electrode 16 can be overlapped on the protruding portion 1232 of the support portion 123 , thereby achieving electrical connection between the second electrode 16 and the isolation structure 12 .

[0318] In one embodiment, the material of the support portion 123 includes a conductive material.

[0319] In one embodiment, the material of the support portion 123 includes titanium or molybdenum.

[0320] In one embodiment, the material of the blocking portion 122 includes a conductive material or an insulating material.

[0321] In one embodiment, the material of the blocking portion 122 includes titanium or molybdenum.

[0322] In one embodiment, the material of the conductor 121 includes aluminum.

[0323] Thirdly, see Fig.11 The embodiment of the present application further provides a display device 1, comprising the display panel 10 described in any of the above embodiments. In this way, the display effect of the display device 1 can be improved.

[0324] 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.

[0325] 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.

[0326] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. 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 of the present 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, wherein the isolation structure defines an isolation opening; A first electrode is disposed on one side of the substrate and is arranged corresponding to the isolation opening, wherein an orthographic projection of the first electrode on the substrate overlaps with an orthographic projection of the isolation structure on the substrate; Among them, the first electrode includes a first extension portion and a second extension portion which are located on a side of the isolation structure close to the substrate and are arranged adjacent to each other, the first extension portion extends along a first direction, the second extension portion extends along a second direction, and the orthographic projection area of ​​the first extension portion on the substrate is larger than the orthographic projection area of ​​the second extension portion on the substrate; the first direction intersects with the second direction and is perpendicular to the thickness direction of the substrate.

2. The display panel according to claim 1, characterized in that: The isolation structure comprises a conductor and a blocking portion stacked in a direction away from the substrate; the outer contour of the orthographic projection of the blocking portion on the substrate is located outside the outer contour of the orthographic projection of the conductor on the substrate; The outer contour of the orthographic projection of the first extension portion on the substrate is located within the orthographic projection range of the conductor on the substrate, the orthographic projection of the second extension portion on the substrate does not overlap with the orthographic projection of the conductor on the substrate, and the outer contour of the orthographic projection of the second extension portion on the substrate is located within the orthographic projection range of the blocking portion on the substrate; Optionally, the first electrode further includes a third extension portion, the third extension portion and the second extension portion are arranged opposite to each other along the second direction, the orthographic projection of the third extension portion on the substrate does not overlap with the orthographic projection of the conductor on the substrate, and the outer contour of the orthographic projection of the third extension portion on the substrate is located within the orthographic projection range of the blocking portion on the substrate; Optionally, the first electrode further includes a fourth extension portion, the fourth extension portion and the first extension portion are arranged opposite to each other along the first direction; an outer contour of an orthographic projection of the fourth extension portion on the substrate is located within an orthographic projection range of the conductor on the substrate, or an orthographic projection of the fourth extension portion on the substrate does not overlap with an orthographic projection of the conductor on the substrate, and an outer contour of an orthographic projection of the fourth extension portion on the substrate is located within an orthographic projection range of the blocking portion on the substrate; Optionally, the first electrode further includes a main body portion, the main body portion is connected to the first extension portion, the second extension portion, the third extension portion and the fourth extension portion, and an orthographic projection of the main body portion on the substrate overlaps with an orthographic projection of the isolation opening on the substrate; Optionally, the first extension portion and the fourth extension portion are symmetrical about the second direction; the second extension portion and the third extension portion are symmetrical about the first direction; Optionally, the orthographic projection of the first electrode on the substrate is an axisymmetric shape; Optionally, the orthographic projection of the first electrode on the substrate is rectangular; Optionally, two adjacent sides of the rectangle extend along the first direction and the second direction respectively; Optionally, the orthographic projection of the first electrode on the substrate is a centrally symmetrical figure; Optionally, the orthographic projection of the first electrode on the substrate is in the shape of a rhombus; Optionally, two diagonal lines of the rhombus extend along the first direction and the second direction respectively; Optionally, the first direction is perpendicular to the second direction; Optionally, the first direction is parallel to one of a long side and a short side of the display panel, and the second direction is parallel to the other of the long side and the short side of the display panel.

3. The display panel according to claim 2, characterized in that: The conductive body arranged around the outer periphery of the isolation opening includes a first body wall corresponding to the isolation opening, and the orthographic projection of the first body wall on the substrate includes a first contour and a second contour; the blocking portion arranged around the outer periphery of the isolation opening includes a second body wall corresponding to the isolation opening; The orthographic projection outer contour of the first extension portion on the substrate is located on a side of the first contour away from the orthographic projection outer contour of the second body wall on the substrate; the orthographic projection of the second extension portion on the substrate is located between the second contour and the orthographic projection outer contour of the second body wall on the substrate; Optionally, the orthographic projection of the first body wall on the substrate includes a third contour, the third contour is arranged opposite to the second contour along the second direction, and the orthographic projection of the third extension portion on the substrate is located between the third contour and the outer contour of the orthographic projection of the second body wall on the substrate; Optionally, the orthographic projection of the first body wall on the substrate includes a fourth contour, and the fourth contour is arranged opposite to the first contour along the first direction; the orthographic projection outer contour of the fourth extension portion on the substrate is located on a side of the fourth contour away from the orthographic projection outer contour of the second body wall on the substrate, or the orthographic projection outer contour of the fourth extension portion on the substrate is located between the fourth contour and the orthographic projection outer contour of the second body wall on the substrate; Optionally, the first contour and the fourth contour are symmetrical along the second direction; the second contour and the third contour are symmetrical along the first direction; Optionally, the orthographic projection of the first body wall on the substrate is an axisymmetric figure; Optionally, the orthographic projection of the first body wall on the substrate is rectangular; Optionally, the orthographic projection of the first body wall on the substrate is a centrally symmetrical figure; Optionally, the orthographic projection of the first body wall on the substrate is in the shape of a rhombus.

4. The display panel according to claim 3, characterized in that: The orthographic projection outer contour of the second body wall on the substrate includes a first section and a second section; the first section corresponds to the first contour, and the second section corresponds to the second contour; Along the first direction, there is a first distance between the first contour and the first section; Along the second direction, there is a second distance between the second contour and the orthographic outer contour of the second segment on the substrate; the second distance is greater than the first distance; Optionally, the orthographic projection outer contour of the second body wall on the substrate includes a third section; the third section corresponds to the third contour; Along the second direction, there is a third distance between the third profile and the third section; the third distance is greater than the first distance; Optionally, the orthographic projection outer contour of the second body wall on the substrate includes a fourth segment, and the fourth segment corresponds to the fourth contour; Along the first direction, there is a fourth distance between the fourth profile and the fourth section; the fourth distance is greater than the first distance, or the fourth distance is smaller than the second distance and smaller than the third distance; Optionally, along the first direction, an outer contour of an orthographic projection of the first extension portion on the substrate has a fifth distance from the first section; Along the second direction, an outer contour of an orthographic projection of the second extension portion on the substrate has a sixth distance from the second section; The fifth spacing is greater than the sixth spacing; Optionally, along the second direction, an outer contour of an orthographic projection of the third extension portion on the substrate has a seventh distance from the third section; The fifth spacing is greater than the seventh spacing; Optionally, along the first direction, an outer contour of an orthographic projection of the fourth extension portion on the substrate has an eighth distance from the fourth section; The fifth spacing is greater than the eighth spacing, or the eighth spacing is greater than the sixth spacing and greater than the seventh spacing; Optionally, the first section and the fourth section are symmetrical about the second direction; the second section and the third section are symmetrical about the first direction; Optionally, the orthographic projection of the second body wall on the substrate is an axisymmetric figure; Optionally, the orthographic projection of the second body wall on the substrate is rectangular; Optionally, the orthographic projection of the second body wall on the substrate is a centrally symmetrical figure; Optionally, the orthographic projection of the second body wall on the substrate is rhombus-shaped.

5. The display panel according to claim 2, characterized in that: It also includes a pixel defining layer, the pixel defining layer is arranged between the isolation structure and the first electrode; the pixel defining layer is provided with a pixel opening connected to the isolation opening, and the pixel opening exposes at least a portion of the first electrode; Optionally, the pixel defining layer includes a pixel defining portion, and the pixel defining portion encloses and forms the pixel opening; The outer contour of the orthographic projection of the first extending portion on the substrate is located within the orthographic projection range of the pixel defining portion on the substrate; The outer contour of the orthographic projection of the second extending portion on the substrate is located within the orthographic projection range of the pixel defining portion on the substrate; Optionally, an outer contour of an orthographic projection of the third extending portion on the substrate is located within a range of an orthographic projection of the pixel defining portion on the substrate; The outer contour of the orthographic projection of the fourth extending portion on the substrate is located within the orthographic projection range of the pixel defining portion on the substrate; Optionally, the pixel defining portion includes a first side wall surrounding the pixel opening, the orthographic projection of the first side wall on the substrate includes a fifth contour and a sixth contour, the orthographic projection outer contour of the first extending portion on the substrate is located on a side of the fifth contour away from the center of the pixel opening, and the orthographic projection outer contour of the second extending portion on the substrate is located on a side of the sixth contour away from the center of the pixel opening; Along the first direction, there is a ninth distance between the orthographic projection outer contour of the first extension portion on the substrate and the fifth contour; along the second direction, there is a tenth distance between the orthographic projection outer contour of the second extension portion on the substrate and the sixth contour, and the tenth distance is smaller than the ninth distance; Optionally, the orthographic projection of the first side wall on the substrate includes a seventh contour, and the orthographic projection outer contour of the third extension portion on the substrate is located on a side of the seventh contour away from the center of the pixel opening; along the second direction, the orthographic projection outer contour of the third extension portion on the substrate has an eleventh spacing from the seventh contour, and the eleventh spacing is smaller than the ninth spacing; Optionally, the orthographic projection of the first side wall on the substrate includes an eighth contour, and the outer contour of the orthographic projection of the fourth extension on the substrate is located on a side of the seventh contour away from the center of the pixel opening; along the first direction, there is a twelfth spacing between the outer contour of the orthographic projection of the fourth extension on the substrate and the eighth contour; the twelfth spacing is smaller than the ninth spacing, or the twelfth spacing is larger than the tenth spacing and larger than the eleventh spacing; Optionally, a first concave portion and a second concave portion are provided on a surface of one side of the pixel defining portion close to the isolation structure, the first concave portion is located on a side of the isolation structure facing the isolation opening, and an orthographic projection of the conductor on the substrate at least partially overlaps with an orthographic projection of the first concave portion on the substrate; The orthographic projection of the conductor on the substrate covers the orthographic projection of the second recess on the substrate; Optionally, an orthographic projection of the first concave portion on the substrate does not overlap with an orthographic projection of the first electrode on the substrate; Optionally, the orthographic projection of the first recessed portion on the substrate is located on a side of the projection of the first extending portion on the substrate away from the isolation opening; Optionally, the orthographic projection of the second recess on the substrate is located between the orthographic projections of the second extensions of adjacent first electrodes on the substrate; Optionally, the material of the pixel defining layer includes inorganic material.

6. The display panel according to claim 2, characterized in that: One end of the blocking portion close to the isolation opening extends toward the center of the isolation opening and protrudes from the side wall of the conductor close to the isolation opening; the conductor arranged around the periphery of the isolation opening includes a first body wall surrounding the isolation opening; The first extension portion is disposed between a portion of the conductor and the substrate; The second extension portion is disposed between a portion of the blocking portion protruding from the first body wall and the substrate; Optionally, the orthographic projection of the first extension portion on the substrate partially overlaps with the orthographic projection of the conductor on the substrate; The orthographic projection of the second extension portion on the substrate partially overlaps with the orthographic projection of a portion of the blocking portion protruding from the first body wall on the substrate; Optionally, the third extension portion is provided between a portion of the blocking portion protruding from the first body wall and the substrate; Optionally, an orthographic projection of the third extending portion on the substrate partially overlaps with an orthographic projection of a portion of the blocking portion protruding from the first body wall on the substrate; Optionally, the fourth extension portion is provided between a portion of the conductor and the substrate, or the fourth extension portion is provided between a portion of the blocking portion protruding from the first body wall and the substrate; Optionally, the orthographic projection of the fourth extension portion on the substrate partially overlaps with the orthographic projection of the conductor on the substrate, or the orthographic projection of the fourth extension portion on the substrate partially overlaps with the orthographic projection of a portion of the blocking portion protruding from the first body wall on the substrate.

7. The display panel according to claim 3, characterized in that: The isolation structure further comprises a support portion, wherein the support portion is disposed between the conductor and the substrate; an outer contour of an orthographic projection of the support portion on the substrate is located outside an outer contour of an orthographic projection of the conductor on the substrate; Optionally, the support portion arranged around the outer periphery of the isolation opening includes a third body wall corresponding to the isolation opening; the outer contour of the orthographic projection of the third body wall on the substrate includes a first sub-segment and a second sub-segment; the first sub-segment corresponds to the first contour, and the second sub-segment corresponds to the second contour; The distance between the second sub-segment and the second contour is greater than the distance between the first sub-segment and the first contour; Optionally, the orthographic projection outer contour of the third body wall on the substrate further includes a third sub-segment, the third sub-segment corresponds to the third contour, and the distance between the third sub-segment and the third contour is greater than the distance between the first sub-segment and the first contour; Optionally, the outer contour of the orthographic projection of the third body wall on the substrate further includes a fourth sub-segment, the fourth sub-segment corresponds to the fourth contour, and the distance between the fourth sub-segment and the fourth contour is greater than the distance between the first sub-segment and the first contour; or, the distance between the second sub-segment and the second contour is greater than the distance between the fourth sub-segment and the fourth contour, and the distance between the third sub-segment and the third contour is greater than the distance between the fourth sub-segment and the fourth contour; Optionally, the support portion includes a support main portion and an extension portion, the extension portion is provided on a side of the support main portion close to the isolation opening; the orthographic projection of the support main portion on the substrate overlaps with the orthographic projection of the conductor on the substrate, and the orthographic projection of the extension portion on the substrate does not overlap with the orthographic projection of the conductor on the substrate; Optionally, an orthographic projection of the support portion on the substrate overlaps with an orthographic projection of the first electrode on the substrate.

8. The display panel according to claim 7, characterized in that: It also includes a light-emitting functional part and a second electrode, wherein the light-emitting functional part is arranged in the isolation opening, and the light-emitting functional part is arranged on a side of the first electrode away from the substrate, and the light-emitting functional part is spaced apart from the support part; the second electrode is arranged on a side of the light-emitting functional part away from the substrate, and the second electrode is electrically connected to the isolation structure; Optionally, the second electrode is in contact with the extension portion near an edge of the first body wall; Optionally, at least part of the edge of the second electrode close to the first body wall is in contact with the first body wall, or the edge of the second electrode close to the first body wall is spaced apart from the first body wall, and the edge of the second electrode close to the first body wall is in contact with the extension; Optionally, the material of the support portion includes a conductive material; Optionally, the material of the support portion includes titanium or molybdenum; Optionally, the material of the blocking portion includes a conductive material or an insulating material; Optionally, the material of the blocking portion includes titanium or molybdenum; Optionally, the material of the conductor includes aluminum.

9. The display panel according to claim 8, characterized in that: It also includes a packaging portion, the packaging portion covers a side of the corresponding second electrode away from the substrate and at least a portion of a side wall of the isolation structure close to the isolation opening; Optionally, the packaging portion extends from a side wall of the isolation structure close to the isolation opening to a side of the isolation structure away from the substrate; Optionally, the packaging portion includes a covering portion, and the covering portion covers a side of the corresponding second electrode away from the substrate and at least a portion of a side wall of the isolation structure close to the isolation opening; Optionally, the packaging portion further comprises an extension portion connected to the covering portion, the extension portion is provided on a side of the isolation structure away from the substrate, and a side surface of the extension portion close to the substrate is spaced from a side surface of the isolation structure away from the substrate; Optionally, it further includes a light extraction layer, wherein the light extraction layer is provided between the second electrode and the encapsulation part; Optionally, it further comprises a first encapsulation layer and a second encapsulation layer, wherein the first encapsulation layer is disposed on a side of the encapsulation portion away from the substrate; and the second encapsulation layer is disposed on a side of the first encapsulation layer away from the substrate; Optionally, the material of the encapsulation part and the second encapsulation layer both include inorganic materials; and the material of the first encapsulation layer includes organic materials.

10. A display panel, characterized in that: include: substrate; an isolation structure disposed on one side of the substrate, the isolation structure defining an isolation opening, the isolation structure comprising a conductor and a blocking portion stacked in a direction away from the substrate, the outer contour of the orthographic projection of the blocking portion on the substrate being outside the outer contour of the orthographic projection of the conductor on the substrate; The orthographic projection of the conductor on the substrate includes a first conductive end and a second conductive end that are adjacent to each other, the orthographic projection of the blocking portion on the substrate includes a first blocking end and a second blocking end that are adjacent to each other, the first conductive end is arranged corresponding to the first blocking end, the second conductive end is arranged corresponding to the second blocking end, and the outline distance between the first conductive end and the first blocking end is smaller than the outline distance between the second conductive end and the second blocking end; The first electrode is disposed on one side of the substrate and is arranged corresponding to the isolation opening, and the orthographic projection of the first electrode on the substrate overlaps with the orthographic projection of the isolation structure on the substrate.

11. The display panel according to claim 10, characterized in that: The conductor arranged around the outer periphery of the isolation opening includes a first body wall surrounding the isolation opening; the orthographic projection outer contour of the first body wall on the substrate includes adjacent first contour and second contour; the orthographic projection of the first conductive end on the substrate forms the first contour; the orthographic projection of the second conductive end on the substrate forms the second contour; The blocking portion arranged around the outer periphery of the isolation opening includes a second body wall surrounding the isolation opening; the outer contour of the orthographic projection of the second body wall on the substrate includes a first section and a second section adjacent to each other, the first section is a first blocking end, and the second section is a second blocking end; Optionally, the orthographic projection outer contour of the first body wall on the substrate further includes a third contour, the third contour is arranged opposite to the second contour along the second direction, and the orthographic projection outer contour of the second body wall on the substrate further includes a third section, the third section corresponds to the third contour, and the distance between the third section and the third contour is greater than the distance between the first contour and the first section; Optionally, the orthographic projection outer contour of the first body wall on the substrate further includes a fourth contour, the fourth contour is arranged opposite to the first contour along a first direction, the first direction and the second direction intersect and are perpendicular to the thickness direction of the substrate; the distance between the fourth contour and the fourth section is greater than the distance between the first contour and the first section; or, the distance between the second contour and the second section is greater than the distance between the fourth contour and the fourth section, and the distance between the third section and the third contour is greater than the distance between the fourth contour and the fourth section; Optionally, along the first direction, there is a first distance between the first profile and the first section; Along the second direction, there is a second distance between the second contour and the orthographic outer contour of the second segment on the substrate; the second distance is greater than the first distance; Optionally, along the second direction, there is a third distance between the third profile and the third section; the third distance is greater than the first distance; Optionally, along the first direction, there is a fourth distance between the fourth contour and the fourth section; the fourth distance is greater than the first distance, or the fourth distance is smaller than the second distance and smaller than the third distance.

12. The display panel according to claim 11, characterized in that: The first electrode comprises a first extension portion and a second extension portion which are located on a side of the isolation structure close to the substrate and are arranged adjacent to each other, the first extension portion extends along a first direction, the second extension portion extends along a second direction, an orthographic projection outer contour of the first extension portion on the substrate is located on a side of the first contour away from the first section; an orthographic projection outer contour of the second extension portion on the substrate is located between the second contour and the second section; Optionally, the first electrode further includes a third extension portion, and an orthographic projection outer contour of the third extension portion on the substrate is located between the third contour and the third section; Optionally, the first electrode includes a fourth extension portion, and an orthographic projection outer contour of the fourth extension portion on the substrate is located on a side of the fourth contour away from the fourth segment, or an orthographic projection outer contour of the fourth extension portion on the substrate is located between the fourth contour and the fourth segment.

13. The display panel according to claim 11, characterized in that: The isolation structure further comprises a support portion, wherein the support portion is disposed between the conductor and the substrate; an outer contour of an orthographic projection of the support portion on the substrate is located outside an outer contour of an orthographic projection of the conductor on the substrate; Optionally, the support portion includes a support main portion and an extension portion, the extension portion is provided on a side of the support main portion close to the isolation opening; the orthographic projection of the support main portion on the substrate overlaps with the orthographic projection of the conductor on the substrate, and the orthographic projection of the extension portion on the substrate does not overlap with the orthographic projection of the conductor on the substrate; Optionally, an orthographic projection of the support portion on the substrate overlaps with an orthographic projection of the first electrode on the substrate.

14. The display panel according to claim 13, characterized in that: It also includes a light-emitting functional part and a second electrode, wherein the light-emitting functional part is arranged in the isolation opening, and the light-emitting functional part is arranged on a side of the first electrode away from the substrate, and at least a part of the light-emitting functional part is spaced apart from the support part; the second electrode is arranged on a side of the light-emitting functional part away from the substrate, and the second electrode is electrically connected to the isolation structure; Optionally, the second electrode is in contact with the extension portion near an edge of the first body wall; Optionally, at least part of the edge of the second electrode close to the first body wall is in contact with the first body wall, or the edge of the second electrode close to the first body wall is spaced apart from the first body wall, and the edge of the second electrode close to the first body wall is in contact with the extension; Optionally, the material of the support portion includes a conductive material; Optionally, the material of the support portion includes titanium or molybdenum; Optionally, the material of the blocking portion includes a conductive material or an insulating material; Optionally, the material of the blocking portion includes titanium or molybdenum; Optionally, the material of the conductor includes aluminum.

15. A display device, characterized in that: A display panel comprising any one of claims 1 to 14.

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