Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel includes: an array substrate; the isolation structure is located on one side of the array substrate and forms a plurality of isolation openings in a surrounding mode; the plurality of light-emitting devices are positioned on one side of the array substrate; wherein the orthographic projection of one end, close to the array substrate, of the isolation opening on the array substrate is a first projection pattern; in at least two kinds of isolation openings in the first isolation opening, the second isolation opening and the third isolation opening, the included angle alpha of the longest straight edges of the first projection patterns of the different kinds of isolation openings is larger than or equal to 0 degree and smaller than or equal to 15 degrees; the orthographic projections of the second electrodes of the light-emitting devices corresponding to the at least two isolation openings on the array substrate are overlapped with the longest straight edge of the first projection pattern. The problem of poor display can be improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display technology is regarded as the next-generation most potential new flat panel display technology. 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.

[0003] During the preparation process of traditional display panels, the light-emitting pixel patterning is usually achieved through a Fine Metal Mask (FMM). The FMM technology is mature and has rich mass production experience. However, the FMM technology also has problems such as limited precision, high development cost, and long development cycle. The fine metal maskless technology eliminates the limitations of traditional OLED processes on the display screen size, resolution, and other screen body performances, and has the advantages of high performance, full-domain size, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN118678742A, CN118785761A, CN115224220A, CN118678729A, CN118660529A, CN118660589A record the relevant content of the fine metal maskless technology for reference.

[0004] However, the current OLED display panels still have the problem of poor display. Summary of the Invention

[0005] Based on this, it is necessary to provide a display panel and a display device that can improve the above problems.

[0006] In a first aspect, an embodiment of the present application provides a display panel, including:

[0007] An array substrate;

[0008] An isolation structure located on one side of the array substrate and enclosing a plurality of isolation openings. The plurality of isolation openings include a plurality of first isolation openings, a plurality of second isolation openings, and a plurality of third isolation openings; the centroid connection lines of two of the second isolation openings and two of the third isolation openings enclose a first virtual quadrilateral, and one of the first isolation openings is located within the first virtual quadrilateral; the centroid connection lines of four of the first isolation openings enclose a second virtual quadrilateral, and one of the second isolation openings is located within the second virtual quadrilateral;

[0009] A plurality of light-emitting devices are located on one side of the array substrate and include a plurality of first light-emitting devices, a plurality of second light-emitting devices, and a plurality of third light-emitting devices. The first light-emitting devices are arranged corresponding to the first isolation openings, the second light-emitting devices are arranged corresponding to the second isolation openings, and the third light-emitting devices are arranged corresponding to the third isolation openings. The first light-emitting devices, the second light-emitting devices, and the third light-emitting devices are respectively used to emit light of different colors. Each of the light-emitting devices includes a first electrode, a light-emitting structure, and a second electrode which are stacked, and the second electrode is electrically connected to the isolation structure.

[0010] Wherein, the orthographic projection of the end of the isolation opening close to the array substrate on the array substrate is a first projection pattern. Among at least two of the first isolation opening, the second isolation opening, and the third isolation opening, the included angle between the longest straight sides of the first projection patterns of different types of isolation openings is α, and 0° ≤ α ≤ 15°. And the orthographic projection of the second electrode of the light-emitting device corresponding to the at least two isolation openings on the array substrate overlaps with the longest straight side of the first projection pattern.

[0011] In one embodiment, the area of the first projection pattern of the second isolation opening and the area of the first projection pattern of the third isolation opening are both larger than the area of the first projection pattern of the first isolation opening.

[0012] The included angle between the longest straight side of the first projection pattern of at least one of the second isolation opening and the third isolation opening and the longest straight side of the first projection pattern of the first isolation opening is α.

[0013] Optionally, the longest straight side of the first projection pattern of at least one of the second isolation opening and the third isolation opening is parallel to the longest straight side of the first projection pattern of the first isolation opening.

[0014] Optionally, among the first isolation opening, the second isolation opening, and the third isolation opening, the included angle between the longest straight sides of any two isolation openings is α. And the orthographic projection of the second electrode of the light-emitting device corresponding to any one isolation opening on the array substrate overlaps with the longest straight side of the first projection pattern.

[0015] Optionally, among the first isolation opening, the second isolation opening, and the third isolation opening, the longest straight sides of any two isolation openings are parallel.

[0016] In one embodiment, the first projection pattern of at least one isolation opening includes two first projection edges that are oppositely disposed and parallel to each other along a first direction, and at least one of the two first projection edges is the longest straight edge of the first projection pattern; the first projection edge is perpendicular to the first direction;

[0017] Optionally, the first projection pattern of at least two isolation openings has two first projection edges that are oppositely disposed and parallel to each other along a first direction, and at least one of the two first projection edges is the longest straight edge of the first projection pattern;

[0018] Optionally, the first projection pattern of any one isolation opening has two first projection edges that are oppositely disposed and parallel to each other along a first direction, and at least one of the two first projection edges is the longest straight edge of the first projection pattern.

[0019] In one embodiment, the first projection pattern includes two second projection edges that are oppositely disposed along a second direction, and the second projection edges connect the two first projection edges;

[0020] Optionally, at least one of the two second projection edges of the same first projection pattern is an arc edge;

[0021] Optionally, at least one of the two second projection edges of the same first projection pattern is a straight edge;

[0022] Optionally, both of the two second projection edges of the same first projection pattern are arc edges;

[0023] Optionally, both of the two second projection edges of the same first projection pattern are straight edges.

[0024] In one embodiment, the area of the first projection pattern of the first isolation opening is S1, the area of the first projection pattern of the second isolation opening is S2, and the area of the first projection pattern of the third isolation opening is S3; S1 < S2 < S3;

[0025] Optionally, both of the two second projection edges of the first projection pattern of the second isolation opening are arc edges;

[0026] Optionally, both of the two second projection edges of the first projection pattern of the third isolation opening are arc edges.

[0027] In one embodiment, both of the two second projection edges of the first projection pattern of the first isolation opening are arc edges;

[0028] Optionally, the first projection pattern of the first isolation opening has a first center line extending in a first direction and a second center line extending in a second direction; a point on the second projection edge with the maximum distance from the first center line is defined as a reference point; the first direction is perpendicular to the second direction;

[0029] The reference points on the two second projection edges are respectively located on both sides of the second center line along the first direction.

[0030] In one embodiment, both of the two second projection edges of the first projection pattern of the first isolation opening are straight edges;

[0031] Optionally, the lengths of the two second projection edges of the first projection pattern of the first isolation opening are equal;

[0032] Optionally, the two second projection edges of the first projection pattern of the first isolation opening are parallel to each other;

[0033] Optionally, the shape of the first projection pattern of the first isolation opening is a parallelogram;

[0034] Optionally, the shape of the first projection pattern of the first isolation opening is a trapezoid;

[0035] Optionally, the shape of the first projection pattern of the first isolation opening is an isosceles trapezoid.

[0036] In one embodiment, the plurality of first isolation openings are arranged in a plurality of first opening rows along the first direction, the plurality of first opening rows are spaced apart along the second direction, the first direction intersects with the extending direction of the longest straight edge of the first projection pattern of the first isolation opening, and the second direction is parallel to the extending direction of the longest straight edge of the first projection pattern;

[0037] Optionally, in the same first opening row, the adjacent sides of the two adjacent first projection patterns are parallel to each other;

[0038] Optionally, the plurality of second isolation openings and the plurality of third isolation openings are arranged in a plurality of second opening rows along the first direction, the plurality of second opening rows are spaced apart along the second direction; in the same second opening row, the second isolation openings and the third isolation openings are arranged alternately along the first direction;

[0039] Optionally, the first opening rows and the second opening rows are arranged alternately along the second direction;

[0040] Optionally, in the same second opening row, the adjacent sides of the two adjacent first projection patterns are parallel to each other;

[0041] Optionally, in the same second opening row, the center connection line of two adjacent first projection patterns is a third center line, and the longest straight side of the first projection pattern of the first isolation opening is perpendicular to the third center line.

[0042] In one embodiment, the multiple first isolation openings are arranged in multiple first opening columns along the second direction, and the multiple first opening columns are spaced apart along the first direction;

[0043] In the same first opening column, the adjacent sides of two adjacent first projection patterns intersect with each other;

[0044] Optionally, in the same first opening column, the distance between the adjacent sides of two adjacent first projection patterns increases along the direction from one first projection pattern to the other first projection pattern;

[0045] Optionally, a light-transmitting hole is provided between two adjacent first isolation openings in the same first opening column.

[0046] In one embodiment, the multiple second isolation openings and the multiple third isolation openings are arranged in multiple second opening columns along the second direction, and the multiple second opening columns are spaced apart along the first direction; in the same second opening column, the second isolation openings and the third isolation openings are alternately arranged along the second direction;

[0047] Optionally, the first opening column and the second opening column are alternately arranged along the first direction;

[0048] Optionally, the isolation openings in the first opening column and the isolation openings in the second opening column are arranged in a staggered manner along the first direction;

[0049] Optionally, in the same second opening column, the center connection line of two adjacent first projection patterns is a fourth center line, and the longest straight side of the first projection pattern of the first isolation opening is parallel to the fourth center line.

[0050] In one embodiment, the first virtual quadrilateral includes a first side and a third side that are parallel to each other, and a second side and a fourth side that connect the first side and the third side;

[0051] Optionally, the length of the first side is greater than the length of the third side, or the length of the first side is equal to the length of the third side;

[0052] Optionally, the second virtual quadrilateral includes a fifth side and a seventh side that are parallel to each other, and a sixth side and an eighth side that connect the fifth side and the seventh side;

[0053] Optionally, the length of the fifth side is greater than the length of the seventh side, or the length of the fifth side is equal to the length of the seventh side.

[0054] In one embodiment, the array substrate further includes a plurality of scan lines arranged at intervals; among the first isolation opening, the second isolation opening, and the third isolation opening, the included angle between the longest straight side of the first projection pattern of at least two types of isolation openings and the arrangement direction of the plurality of scan lines is a preset angle.

[0055] In one embodiment, among the first isolation opening, the second isolation opening, and the third isolation opening, the included angle between the longest straight side of the first projection pattern of any isolation opening and the arrangement direction of the plurality of scan lines is a preset angle, and the positive projection of the second electrode of the light-emitting device corresponding to any isolation opening on the array substrate overlaps with the longest straight side of the first projection pattern.

[0056] In one embodiment, among the first isolation opening, the second isolation opening, and the third isolation opening, the longest straight side of the first projection pattern of at least one type of isolation opening is greater than the dimension of the first projection pattern along the first direction; the first direction is perpendicular to the extension direction of the longest straight side of the first projection pattern;

[0057] Optionally, in the first projection pattern of the at least one type of isolation opening, the ratio range of the longest straight side of the first projection pattern to the dimension of the first projection pattern along the first direction is 1.3 - 2;

[0058] Optionally, in the first projection pattern of the at least one type of isolation opening, the longest straight side of the first projection pattern is greater than 10 μm;

[0059] Optionally, in the first projection pattern of the at least one type of isolation opening, the longest straight side of the first projection pattern is greater than 16 μm.

[0060] In a second aspect, an embodiment of the present application provides a display device, including the display panel in any of the above embodiments.

[0061] In the display panel and the display device provided by the embodiments of the present application, in at least two of the first isolation opening, the second isolation opening, and the third isolation opening, the included angle between the longest straight edges of the first projection patterns of different types of isolation openings is α. In this way, when depositing the second electrode, the scanning direction of the deposition source can be perpendicular to the extension direction of the longest straight edge of any one of the first projection patterns of the two isolation openings, so that the front projection of the second electrode overlaps with the longest straight edge of the first projection pattern. In other words, it is beneficial to extend the second electrode corresponding to these two isolation openings to the side wall of the isolation structure corresponding to the longest straight edge, so that the overlapping area between the second electrode and the isolation structure is larger, the overlapping impedance is reduced, and the display effect is improved. Description of the Drawings

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application or exemplary embodiments, the following will briefly introduce the drawings required for the description of the embodiments or exemplary embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0063] Figure 1 It is a schematic plan view of a display panel provided by an embodiment of the present application.

[0064] Figure 2A It is Figure 1 a schematic partial cross-sectional structure view of some film layers of the shown display panel.

[0065] Figure 2B It is Figure 1 another schematic partial cross-sectional structure view of some film layers of the shown display panel.

[0066] Figure 3 It is Figure 1 a schematic plan view of the isolation structure and the light-emitting device of the shown display panel.

[0067] Figure 4 It is Figure 3 a schematic plan view of the isolation structure in

[0068] Figure 5 It is Figure 4 a schematic layout view of the isolation openings in

[0069] Figure 6 It is Figure 5 a schematic view of the first projection pattern of the first isolation opening in

[0070] Figure 7 It is Figure 5 a schematic view of the first projection pattern of the second isolation opening in

[0071] Figure 8 is Figure 5 a schematic diagram of the first projection pattern of the third isolation opening in

[0072] Figure 9 is Figure 5 a schematic diagram of an arrangement of some of the isolation openings in

[0073] Figure 10 is Figure 5 a schematic diagram of another arrangement of some of the isolation openings in

[0074] Figure 11 is Figure 3 a schematic diagram of another arrangement of the isolation openings of the isolation structure in

[0075] Figure 12 is Figure 11 a schematic diagram of the arrangement of the first projection patterns of two first isolation openings in the first opening column in

[0076] Figure 13 is Figure 3 a schematic diagram of yet another arrangement of the isolation openings of the isolation structure in

[0077] Figure 14 is Figure 13 a schematic diagram of the arrangement of the first projection patterns of two first isolation openings in the first opening column in

[0078] Figure 15 is Figure 11 a schematic diagram of the arrangement of the isolation openings and the light-transmitting holes in

[0079] Figure 16 is Figure 1 a schematic diagram of another partial cross-sectional structure of some of the film layers of the display panel shown in

[0080] Figure 17 is a schematic diagram of the structure of a display device provided by an embodiment of the present application.

[0081] Explanation of reference numerals:

[0082] 100. Display device; 10. Display panel; 11. Array substrate; 11a. Scanning line; 12. Isolation structure; 12a. Isolation opening; 12a1. First isolation opening; 12a2. Second isolation opening; 12a3. Third isolation opening; 12c. Light-transmitting hole; 121. Blocking part; 122. Isolator; 123. Base; 13. Light-emitting device; 13a. First light-emitting device; 13b. Second light-emitting device; 13c. Third light-emitting device; 131. First electrode; 132. Light-emitting structure; 133. Second electrode; 14. Encapsulation part; 14a. First encapsulation part; 14b. Second encapsulation part; 14c. Third encapsulation part; 15. Organic encapsulation layer; 16. Inorganic encapsulation layer; 17. Pixel defining layer; H1. First opening row; H2. Second opening row; L1. First opening column; L2. Second opening column; S1-a, S1-b, S1-c. First projection pattern; S11. First projection edge; S12. Second projection edge; N1. First virtual quadrilateral; N1-1. First side; N1-2. Second side; N1-3. Third side; N1-4. Fourth side; N2. Second virtual quadrilateral; N2-1. Fifth side; N2-2. Sixth side; N2-3. Seventh side; N2-4. Eighth side; O1. First center line; O2. Second center line; O3. Third center line; O4. Fourth center line; C. Reference point; X. First direction; Y. Second direction. Detailed implementation manners

[0083] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings.

[0084] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein 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.

[0085] The display panel fabricated by using the fine metal maskless technology features high PPI and can make the sub-pixels smaller. However, after the sub-pixels become smaller, there are problems with poor display, such as color unevenness at low gray levels. The inventors have found through research that the reason for the above problems is that the electrical connection impedance between the cathode of the sub-pixel and the isolation structure is relatively large.

[0086] In view of the above problems, an embodiment of the present application provides a display panel and a display device. Among at least two types of isolation openings among the first isolation opening, the second isolation opening, and the third isolation opening, the included angle between the longest straight sides of the first projection patterns of different types of isolation openings is α. In this way, when depositing the second electrode, the scanning direction of the deposition source can be perpendicular to the extension direction of the longest straight side of any one of the first projection patterns of these two types of isolation openings, so that the front projection of the second electrode overlaps with the longest straight side of the first projection pattern. In other words, it is beneficial to extend the second electrodes corresponding to these two types of isolation openings to the side walls of the isolation structures corresponding to the longest straight sides, so that the overlapping area between the second electrode and the isolation structure is larger, the overlapping impedance is reduced, and the display effect is improved.

[0087] Referring to Figures 1 - 16 As shown, an embodiment of the present application provides a display panel 10, which may be an organic light-emitting diode display panel 10 (Organic Light Emitting Diode, abbreviated as OLED), a quantum dot light-emitting diode display panel 10 (Quantum Dot Light Emitting Diodes, abbreviated as QLED).

[0088] The display includes an array substrate 11, an isolation structure 12, and a plurality of light-emitting devices 13. The isolation structure 12 is located on one side of the array substrate 11 and encloses a plurality of isolation openings 12a. The plurality of isolation openings 12a include a plurality of first isolation openings 12a1, a plurality of second isolation openings 12a2, and a plurality of third isolation openings 12a3; as Figure 4 shown, the connecting line of the centroids of two second isolation openings 12a2 and two third isolation openings 12a3 encloses a first virtual quadrilateral N1, and one first isolation opening 12a1 is located inside the first virtual quadrilateral N1; the connecting line of the centroids of four first isolation openings 12a1 encloses a second virtual quadrilateral N2, and one second isolation opening 12a2 is located inside the second virtual quadrilateral N2. Herein, the centroid refers to the center of a geometric figure. Further, the centroid of the isolation opening 12a refers to the centroid of the front projection of the isolation opening 12a.

[0089] Further, the plurality of light-emitting devices 13 are located on one side of the array substrate 11 and include a plurality of first light-emitting devices 13a, a plurality of second light-emitting devices 13b, and a plurality of third light-emitting devices 13c. The first light-emitting devices 13a are arranged corresponding to the first isolation openings 12a1, the second light-emitting devices 13b are arranged corresponding to the second isolation openings 12a2, and the third light-emitting devices 13c are arranged corresponding to the third isolation openings 12a3. Exemplarily, the first light-emitting devices 13a are arranged in one-to-one correspondence with the first isolation openings 12a1, the second light-emitting devices 13b are arranged in one-to-one correspondence with the second isolation openings 12a2, and the third light-emitting devices 13c are arranged in one-to-one correspondence with the third isolation openings 12a3. At least a part of the first light-emitting devices 13a is disposed within the corresponding first isolation openings 12a1, at least a part of the second light-emitting devices 13b is disposed within the corresponding second isolation openings 12a2, and at least a part of the third light-emitting devices 13c is disposed within the corresponding third isolation openings 12a3. It can be understood that, in a planar view, the size and shape of the isolation openings 12a are adapted to the size and shape of the light-emitting devices 13.

[0090] The first light-emitting devices 13a, the second light-emitting devices 13b, and the third light-emitting devices 13c are respectively used for emitting light of different colors; each light-emitting device 13 includes a first electrode 131, a light-emitting structure 132, and a second electrode 133 which are stacked, and the second electrode 133 is electrically connected to the isolation structure 12; wherein, the first electrode 131 can be an anode, and the second electrode 133 can be a cathode.

[0091] Wherein, the positive projection of the end of the isolation opening 12a close to the array substrate 11 on the array substrate 11 is a first projection pattern. As Figure 2A shown, the isolation opening 12a penetrates through the isolation structure 12 in the vertical direction, and the end of the isolation opening 12a close to the array substrate 11 is the bottom end of the isolation opening 12a. In other words, the first projection pattern can also be considered as: the positive projection of the bottom end of the side wall of the isolation structure 12 close to the isolation opening 12a on the array substrate 11. In one example, the isolation structure 12 includes an isolation body 122 and a blocking portion 121 which are stacked in a direction away from the array substrate 11. The positive projection of the bottom end of the side wall of the isolation body 122 close to the isolation opening 12a on the array substrate 11 is the first projection pattern. Specifically, the material of the isolation body 122 can be Al, and the material of the blocking portion 121 can be Ti. In another example, as Figure 2B shown, the isolation structure 12 includes a base portion 123, an isolation body 122, and a blocking portion 121 which are stacked in a direction away from the array substrate 11. The positive projection of the bottom end of the side wall of the base portion 123 close to the isolation opening 12a on the array substrate 11 is the first projection pattern. Specifically, the material of the base portion 123 can be Mo, the material of the isolation body 122 can be Al, and the material of the blocking portion 121 can be Ti.

[0092] Furthermore, among at least two of the first isolation opening 12a1, the second isolation opening 12a2, and the third isolation opening 12a3, for different types of the isolation openings 12a, the included angle between the longest straight sides of the first projection patterns of the different types of isolation openings 12a is α, where 0° ≤ α ≤ 15°; and the second electrodes 133 of the light-emitting devices 13 corresponding to at least two of the isolation openings 12a overlap with the longest straight side of the first projection pattern on the array substrate 11.

[0093] Here, it should be noted that the longest straight side of the first projection pattern refers to: among all the straight sides of the first projection pattern, the straight side with the longest length. It should be emphasized that in the actual manufacturing process, due to process errors, or due to burrs easily existing on the side wall of the isolation structure 12 close to the isolation opening 12a (for example, the side wall of the base 123 close to the isolation opening 12a), there are burrs on the longest straight side of the first projection pattern, that is, the longest straight side of the first projection pattern is not an absolutely straight line. Therefore, the straight side here can also be an approximate straight line. It should also be noted that when the included angle α between the two longest straight sides is equal to 0°, it indicates that the two longest straight sides are parallel to each other. In addition, different types of isolation openings 12a refer to the isolation openings 12a corresponding to light-emitting devices 13 of different colors, and the same type of isolation openings 12a refer to the isolation openings 12a corresponding to light-emitting devices 13 of the same color.

[0094] In one example, the included angle between the longest straight side of the first projection pattern S1-a of the first isolation opening 12a1 and the longest straight side of the first projection pattern S1-b of the second isolation opening 12a2 is α; in another example, the included angle between the longest straight side of the first projection pattern S1-a of the first isolation opening 12a1 and the longest straight side of the first projection pattern S1-c of the third isolation opening 12a3 is α; in yet another example, the included angle between the longest straight side of the first projection pattern S1-c of the third isolation opening 12a3 and the longest straight side of the first projection pattern S1-b of the second isolation opening 12a2 is α; in still another example, the included angle between the longest straight side of the first projection pattern S1-a of the first isolation opening 12a1 and the longest straight side of the first projection pattern S1-b of the second isolation opening 12a2 is α; the included angle between the longest straight side of the first projection pattern S1-a of the first isolation opening 12a1 and the longest straight side of the first projection pattern S1-c of the third isolation opening 12a3 is α; the included angle between the longest straight side of the first projection pattern S1-c of the third isolation opening 12a3 and the longest straight side of the first projection pattern S1-b of the second isolation opening 12a2 is α.

[0095] In the display panel 10 provided by the embodiment of the present application, assuming that the included angle between the longest straight sides of the first projection pattern S1-b of the first isolation opening 12a1 and the second isolation opening 12a2 is α. Thus, when depositing the second electrode 133, the scanning direction of the deposition source can be perpendicular to the extension direction of the longest straight side of the first isolation opening 12a1, which is not only beneficial to extending the second electrode 133 of the first light-emitting device 13a (corresponding to the first isolation opening 12a1) to the side wall of the isolation structure 12 corresponding to the longest straight side, so that the overlapping area between the second electrode 133 of the first light-emitting device 13a and the isolation structure 12 is larger, reducing the overlapping impedance and improving the display effect; moreover, since the included angle between the longest straight side of the second isolation opening 12a2 and the longest straight side of the first isolation opening 12a1 is ≤ 15°, it is also beneficial to extending the second electrode 133 of the second light-emitting device 13b (corresponding to the second isolation opening 12a2) to the side wall of the isolation structure 12 corresponding to the longest straight side, so that the overlapping area between the second electrode 133 of the second light-emitting device 13b and the isolation structure 12 is larger, reducing the overlapping impedance and improving the display effect.

[0096] In one embodiment, the area of the first projection pattern S1-b of the second isolation opening 12a2 and the area of the first projection pattern S1-c of the third isolation opening 12a3 are both larger than the area of the first projection pattern S1-a of the first isolation opening 12a1. The included angle between the longest straight side of the first projection pattern of at least one of the second isolation opening 12a2 and the third isolation opening 12a3 and the longest straight side of the first projection pattern S1-a of the first isolation opening 12a1 is α.

[0097] It should be noted that in the related display panel 10, the impedance of the light-emitting device 13 corresponding to the isolation opening 12a with the smallest orthographic projection area is relatively large. The embodiment of the present application specifically improves the overlapping performance of the light-emitting device 13 with a relatively large impedance, which can significantly reduce the overlapping impedance of the light-emitting device 13, thereby improving the display effect.

[0098] Specifically, when vapor-depositing the second electrode 133, the scanning direction of the vapor-deposition source can be perpendicular to the extending direction of the longest straight side of the first isolation opening 12a1. This is not only beneficial for the second electrode 133 of the first light-emitting device 13a (the device with the smallest area) to extend to the side wall of the isolation structure 12 corresponding to the longest straight side, thereby increasing the overlapping area between the second electrode 133 of the first light-emitting device 13a and the isolation structure 12, reducing the overlapping impedance, and improving the display effect. Moreover, since the included angle between the longest straight side of the second isolation opening 12a2 (or the third isolation opening 12a3) and the longest straight side of the first isolation opening 12a1 is ≤ 15°, it is also beneficial for the second electrode 133 of the second light-emitting device 13b (or the third light-emitting device 13c) to extend to the side wall of the isolation structure 12 corresponding to the longest straight side, thereby increasing the overlapping area between the second electrode 133 of the second light-emitting device 13b (or the third light-emitting device 13c) and the isolation structure 12, reducing the overlapping impedance, and improving the display effect.

[0099] Optionally, the longest straight side of the first projection pattern of at least one of the second isolation opening 12a2 and the third isolation opening 12a3 is parallel to the longest straight side of the first projection pattern S1-a of the first isolation opening 12a1.

[0100] Specifically, assume that the longest straight side of the first projection pattern S1-b of the second isolation opening 12a2 is parallel to the longest straight side of the first projection pattern S1-a of the first isolation opening 12a1. In this way, when vapor-depositing the second electrode 133, making the scanning direction of the vapor-deposition source perpendicular to the extending direction of the longest straight side of the first isolation opening 12a1 can not only maximize the overlapping area of the first light-emitting device 13a to the greatest extent, but also maximize the overlapping area of the second light-emitting device 13b to the greatest extent, which is beneficial for reducing the overlapping impedance and improving the display effect.

[0101] Optionally, among the first isolation opening 12a1, the second isolation opening 12a2, and the third isolation opening 12a3, the included angle between the longest straight sides of the first projection patterns of any two isolation openings 12a is α; and the orthographic projection of the second electrode 133 of the light-emitting device 13 corresponding to any one isolation opening 12a on the array substrate 11 overlaps with the longest straight side of this first projection pattern.

[0102] Specifically, when vapor-depositing the second electrode 133, assuming that the scanning direction of the vapor-deposition source is perpendicular to the extending direction of the longest straight side of the first isolation opening 12a1, it is not only beneficial to extend the second electrode 133 of the first light-emitting device 13a to the side wall of the isolation structure 12 corresponding to the longest straight side, so that the overlapping area between the second electrode 133 of the first light-emitting device 13a and the isolation structure 12 is larger, reducing the overlapping impedance and improving the display effect; moreover, since the included angle between the longest straight sides of the second isolation opening 12a2 and the third isolation opening 12a3 and the longest straight side of the first isolation opening 12a1 is ≤ 15°, therefore, it is also beneficial to extend the second electrodes 133 of the second light-emitting device 13b and the third light-emitting device 13c to the side wall of the isolation structure 12 corresponding to the longest straight side, so that the overlapping areas between the second electrodes 133 of the second light-emitting device 13b and the third light-emitting device 13c and the isolation structure 12 are larger, reducing the overlapping impedance and improving the display effect.

[0103] Optionally, among the first isolation opening 12a1, the second isolation opening 12a2, and the third isolation opening 12a3, the longest straight sides of the first projection patterns of any two isolation openings 12a are parallel.

[0104] In this way, when vapor-depositing the second electrode 133, making the scanning direction of the vapor-deposition source perpendicular to the extending direction of the longest straight side of the first isolation opening 12a1 can not only maximize the overlapping area of the first light-emitting device 13a to the greatest extent, but also maximize the overlapping areas of the second light-emitting device 13b and the third light-emitting device 13c to the greatest extent, which is beneficial to reducing the overlapping impedance and improving the display effect.

[0105] It should be specifically noted that in Figure 3 the shown arrangement, specially designing the first isolation opening 12a1, the second isolation opening 12a2, and the third isolation opening 12a3 in the above manner can not only reduce the impedance of the light-emitting devices 13 of the three colors, but also take into account the service life and the light mixing effect, thereby maximizing the improvement of the display effect.

[0106] In one embodiment, as Figures 6 - 8 shown, the first projection pattern of at least one isolation opening 12a (such as Figure 6The first projection pattern S1-a of the first isolation opening 12a1 includes two first projection edges S11 that are oppositely arranged along the first direction X and parallel to each other. At least one of the two first projection edges S11 is the longest straight edge of the first projection pattern. The first projection edge S11 is perpendicular to the first direction X. In this way, when depositing the second electrode 133, making the scanning direction of the deposition source perpendicular to the extension direction of the longest straight edge of the first isolation opening 12a1 not only maximizes the overlapping area between the second electrode 133 and the isolation structure 12 corresponding to the longest straight edge (one of the first projection edges S11), but also can maximize the overlapping area between the second electrode 133 and the isolation structure 12 corresponding to the other first projection edge S11, thereby maximizing the overlapping area of the light-emitting device 13 to a greater extent, which is beneficial to reducing the overlapping impedance and improving the display effect.

[0107] Optionally, the first projection patterns of at least two isolation openings 12a have two first projection edges S11 that are oppositely arranged along the first direction X and parallel to each other. At least one of the two first projection edges S11 is the longest straight edge of the first projection pattern. Specifically, as Figure 6 the first projection pattern S1-a of the first isolation opening 12a1 in Figure 7 the first projection pattern S1-b of the second isolation opening 12a2 in

[0108] Optionally, the first projection pattern of any one isolation opening 12a has two first projection edges S11 that are oppositely arranged along the first direction X and parallel to each other. At least one of the two first projection edges S11 is the longest straight edge of the first projection pattern. As analyzed above, this can maximize the overlapping area of each two light-emitting devices 13 to a greater extent, which is beneficial to reducing the overlapping impedance and improving the display effect.

[0109] In one embodiment, as Figure 6 shown, the first projection pattern S1-a includes two second projection edges S12 that are oppositely arranged along the second direction Y. The second projection edges S12 connect the two first projection edges S11.

[0110] Optionally, as Figure 6 shown, at least one of the two second projection edges S12 of the same first projection pattern S1-a is an arc edge. In this way, it is beneficial to increase the area of the isolation opening 12a, thereby increasing the effective light-emitting area of the light-emitting device 13.

[0111] Optionally, as Figure 6As shown, both of the two second projection edges S12 of the same first projection pattern S1-a are arc-shaped edges. In this way, it is beneficial to maximize the area of the isolation opening 12a, thereby increasing the effective light-emitting area of the light-emitting device 13.

[0112] Optionally, as Figure 12 shown, at least one of the two second projection edges S12 of the same first projection pattern S1-a is a straight edge. In this way, it is beneficial to make the planar shape of the first isolation opening 12a1 relatively regular, so as to facilitate the arrangement of relatively large light-transmitting holes between adjacent isolation openings 12a.

[0113] Optionally, as Figure 12 shown, both of the two second projection edges S12 of the same first projection pattern S1-a are straight edges. In this way, the planar shape of the first isolation opening 12a1 is made more regular, which is more beneficial to arranging relatively large light-transmitting holes between adjacent isolation openings 12a.

[0114] In one embodiment, the area of the first projection pattern S1-a of the first isolation opening 12a1 is S1, the area of the first projection pattern S1-b of the second isolation opening 12a2 is S2, and the area of the first projection pattern S1-c of the third isolation opening 12a3 is S3; S1 < S2 < S3. In an example, the first light-emitting device 13a is a green light-emitting device 13, the second light-emitting device 13b is a red light-emitting device 13, and the third light-emitting device 13c is a blue light-emitting device 13.

[0115] Optionally, as Figure 7 shown, both of the two second projection edges S12 of the first projection pattern S1-b of the second isolation opening 12a2 are arc-shaped edges. In this way, it is beneficial to increase the area of the second isolation opening 12a2, thereby increasing the effective light-emitting area of the second light-emitting device 13b.

[0116] Optionally, as Figure 8 shown, both of the two second projection edges S12 of the first projection pattern S1-c of the third isolation opening 12a3 are arc-shaped edges. In this way, it is beneficial to increase the area of the third isolation opening 12a3, thereby increasing the effective light-emitting area of the third light-emitting device 13c.

[0117] In one embodiment, as Figure 6 shown, both of the two second projection edges S12 of the first projection pattern S1-a of the first isolation opening 12a1 are arc-shaped edges. In this way, it is beneficial to increase the area of the first isolation opening 12a1, thereby increasing the effective light-emitting area of the first light-emitting device 13a.

[0118] Optionally, as Figure 6As shown, the first projection pattern S1-a of the first isolation opening 12a1 has a first center line O1 extending along the first direction X and a second center line O2 extending along the second direction Y; a point on the second projection edge S12 with the maximum distance from the first center line O1 is defined as the reference point C; the first direction X is perpendicular to the second direction Y; the reference points C on the two second projection edges S12 are respectively located on both sides of the second center line O2 along the first direction X. In this way, the planar shape of the first isolation opening 12a1 presents a special-shaped design, so that the effective light-emitting area of the first light-emitting device 13a presents a special-shaped design, which is beneficial to the mixing of light of the first light-emitting device 13a, the second light-emitting device 13b and the third light-emitting device 13c.

[0119] In one embodiment, as Figures 11 - 14 shown, both second projection edges S12 of the first projection pattern S1-a of the first isolation opening 12a1 are straight edges. In this way, it is beneficial to make the planar shape of the first isolation opening 12a1 relatively regular, so as to facilitate the arrangement of a relatively large light-transmitting hole between adjacent isolation openings 12a.

[0120] Optionally, the lengths of the two second projection edges S12 of the first projection pattern S1-a of the first isolation opening 12a1 are equal.

[0121] Optionally, as Figure 11 and Figure 12 shown, the two second projection edges S12 of the first projection pattern S1-a of the first isolation opening 12a1 are parallel to each other.

[0122] Optionally, the shape of the first projection pattern S1-a of the first isolation opening 12a1 is a parallelogram. It can be understood that the shape of the first projection pattern S1-a of the first isolation opening 12a1 can also be a rectangle.

[0123] Optionally, as Figure 13 and Figure 14 shown, the shape of the first projection pattern S1-a of the first isolation opening 12a1 is a trapezoid.

[0124] Optionally, the shape of the first projection pattern S1-a of the first isolation opening 12a1 is an isosceles trapezoid.

[0125] In one embodiment, a plurality of first isolation openings 12a1 are arranged in a plurality of first opening rows H1 along the first direction X, and the plurality of first opening rows H1 are spaced apart along the second direction Y. The first direction X intersects with the extending direction of the longest straight edge of the first projection pattern S1-a of the first isolation opening 12a1, and the second direction Y is parallel to the extending direction of the longest straight edge of the first projection pattern S1-a.

[0126] Thus, in the above arrangement, when the second electrode 133 is vapor-deposited, the scanning direction of the vapor-deposition source is perpendicular to the extension direction of the longest straight side of the first isolation opening 12a1, which is beneficial to extending the second electrodes 133 of all the first light-emitting devices 13a (corresponding to the first isolation openings 12a1) to the side walls of the isolation structure 12 corresponding to the longest straight side, so that the overlapping area between the second electrodes 133 of all the first light-emitting devices 13a and the isolation structure 12 is larger, reducing the overlapping impedance and improving the display effect.

[0127] Optionally, in the same first opening row H1, the adjacent sides of two adjacent first projection patterns are arranged in parallel. Specifically, as Figure 5 and Figure 9 shown, the adjacent sides of two adjacent first projection patterns S1-a are arranged in parallel. In this way, in the same first opening row H1, the area between two adjacent first isolation openings 12a1 is relatively regular, which is beneficial to arranging the light-transmitting holes 12c in the area between two adjacent first isolation openings 12a1. In addition, when the distance between two first isolation openings 12a1 is fixed, it is beneficial to maximize the areas of the two first isolation openings 12a1, so as to maximize the area of the first light-emitting device 13a.

[0128] Optionally, multiple second isolation openings 12a2 and multiple third isolation openings 12a3 are arranged in multiple second opening rows H2 along the first direction X, and the multiple second opening rows H2 are arranged at intervals along the second direction Y; in the same second opening row H2, the second isolation openings 12a2 and the third isolation openings 12a3 are arranged alternately along the first direction X.

[0129] In this way, in the above arrangement, it is beneficial to reduce the impedance of the light-emitting devices 13 of three colors, and it can take into account the service life and the light mixing effect, thereby maximizing the display effect.

[0130] Optionally, the first opening row H1 and the second opening row H2 are arranged alternately along the second direction Y; in other words, the first opening row H1 and the second opening row H2 are arranged alternately in sequence along the second direction Y. In this way, it is beneficial to mix the light of the light-emitting devices 13 of three colors, thereby improving the display effect.

[0131] Optionally, in the same second opening row H2, the adjacent sides of two adjacent first projection patterns are arranged in parallel. Specifically, as Figure 5 and Figure 10 shown, the adjacent sides of the first projection pattern S1-b of the second isolation opening 12a2 and the first projection pattern S1-c of the third isolation opening 12a3 are arranged in parallel.

[0132] Thus, in the same second opening row H2, the area between the adjacent second isolation openings 12a2 and third isolation openings 12a3 is relatively regular, which is conducive to setting the light-transmitting hole 12c in the area between the two. In addition, when the distance between the second isolation openings 12a2 and the third isolation openings 12a3 is constant, it is conducive to maximizing the area of the second isolation openings 12a2 and the third isolation openings 12a3, thereby maximizing the area of the second light-emitting device 13b and the third light-emitting device 13c.

[0133] Alternatively, if Figure 10 As shown, in the same second opening row H2, the center line connecting two adjacent first projection figures is the third center line O3, that is, the center line connecting the first projection figure S1-b of the second isolation opening 12a2 and the first projection figure S1-c of the third isolation opening 12a3 is the third center line O3. The longest straight side of the first projection figure S1-a of the first isolation opening 12a1 is perpendicular to the third center line O3. In other words, the third center line O3 is parallel to the first direction X, and the longest straight side of the first projection figure S1-a of the first isolation opening 12a1 is perpendicular to the first direction X.

[0134] In this way, the first isolation opening 12a1, the second isolation opening 12a2 and the third isolation opening 12a3 are arranged more regularly, thereby achieving the purpose of reducing the overlap impedance and ensuring light mixing and life.

[0135] In one embodiment, if Figure 11 and Figure 13 As shown, a plurality of first isolation openings 12a1 are arranged into a plurality of first opening columns L1 along the second direction Y, and the plurality of first opening columns L1 are arranged at intervals along the first direction X. In the same first opening column L1, the adjacent sides of two adjacent first projection patterns S1-a are arranged to intersect; in other words, in the same first opening column L1, the adjacent sides of two adjacent first projection patterns S1-a are not parallel. In this way, it is advantageous to arrange a special-shaped light-transmitting hole 12c between two adjacent first isolation openings 12a1, thereby facilitating improvement of the diffraction phenomenon of the light-transmitting hole 12c.

[0136] Alternatively, if Figure 12 and Figure 14 As shown, in the same first opening row L1, the distance between the adjacent sides of two adjacent first projection patterns S1-a is arranged to increase in a direction from one first projection pattern S1-a to another first projection pattern S1-a. Figure 12 In , the distance between the adjacent sides of two adjacent first projection figures S1-a increases from left to right. Figure 14 In the figure, the distance between the adjacent sides of two adjacent first projection figures S1-a increases from right to left.

[0137] Optionally, as Figure 15 shown, in the same first opening column L1, a light-transmitting hole 12c is provided between two adjacent first isolation openings 12a1. It should be noted that the under-screen device can obtain external light through the light-transmitting hole.

[0138] Specifically, taking Figure 11 and Figure 13 as an example, in the same first opening column L1, the blank area between two adjacent first isolation openings 12a1 is similar to a trapezoid, so that the shape of the light-transmitting hole 12c can be trapezoidal, which is beneficial to reducing diffraction. It should also be noted that, as Figure 15 shown, in the second direction Y, the placement directions of two adjacent light-transmitting holes 12c are opposite, where the bottom side of one light-transmitting hole 12c faces left and the bottom side of one light-transmitting hole 12c faces right. In this way, it is beneficial to improve the diffraction phenomenon.

[0139] In one embodiment, as Figure 12 and Figure 14 shown, a plurality of second isolation openings 12a2 and a plurality of third isolation openings 12a3 are arranged in a plurality of second opening columns L2 along the second direction Y, and the plurality of second opening columns L2 are arranged at intervals along the first direction X; in the same second opening column L2, the second isolation openings 12a2 and the third isolation openings 12a3 are arranged alternately along the second direction Y; here, it should be noted that in the second opening column L2, the second isolation openings 12a2 and the third isolation openings 12a3 are arranged alternately in sequence.

[0140] In this way, under the above arrangement, it is beneficial to reduce the impedance of the light-emitting devices 13 of the three colors, and it can take into account the service life and the light mixing effect, thereby maximizing the display effect.

[0141] Optionally, the first opening column L1 and the second opening column L2 are arranged alternately along the first direction X; in other words, the first opening column L1 and the second opening column L2 are arranged alternately in sequence along the first direction X. In this way, it is beneficial to mix the light of the light-emitting devices 13 of the three colors, thereby improving the display effect.

[0142] Optionally, the isolation openings 12a in the first opening column L1 and the isolation openings 12a in the second opening column L2 are arranged in a staggered manner along the first direction X; in other words, the isolation openings 12a in the first opening column L1 and the isolation openings 12a in the second opening column L2 are not opposite to each other in the first direction X. In this way, on the one hand, it is beneficial to maximize the use of the layout area of the display area, so as to reasonably arrange the light-emitting devices 13 of the three colors, and further maximize the PPI and the display effect.

[0143] Optionally, as Figure 9As shown, in the same second opening column L2, the center line connecting two adjacent first projection figures is the fourth center line O4, that is, the center line connecting the first projection figure S1-b of the second isolation opening 12a2 and the first projection figure S1-c of the third isolation opening 12a3 is the third center line O3. The longest straight side of the first projection figure S1-a of the first isolation opening 12a1 is parallel to the fourth center line O4. In other words, the fourth center line O4 is parallel to the second direction Y, and the longest straight side of the first projection figure S1-a of the first isolation opening 12a1 is perpendicular to the second direction Y.

[0144] In this way, the first isolation opening 12a1, the second isolation opening 12a2 and the third isolation opening 12a3 are arranged more regularly, thereby achieving the purpose of reducing the overlap impedance and ensuring light mixing and life.

[0145] In one embodiment, if Figure 4 As shown, the first virtual quadrilateral N1 includes a first side N1-1 and a third side N1-3 which are parallel to each other, and a second side N1-2 and a fourth side N1-4 which connect the first side N1-1 and the third side N1-3;

[0146] Optionally, the length of the first side N1-1 is greater than the length of the third side N1-3. That is, the first virtual quadrilateral N1 is a trapezoid. In a preferred example, the first virtual quadrilateral N1 is an isosceles trapezoid.

[0147] Optionally, the length of the first side N1-1 is equal to the length of the third side N1-3. That is, the first virtual quadrilateral N1 is a parallelogram or a rectangle. In a preferred example, the first virtual quadrilateral N1 is a rectangle.

[0148] Optionally, the second virtual quadrilateral N2 includes a fifth side N2-1 and a seventh side N2-3 which are parallel to each other, and a sixth side N2-2 and an eighth side N2-4 which connect the fifth side N2-1 and the seventh side N2-3; illustratively, the quadrilateral may be a rectangle, a trapezoid, a rhombus, etc.

[0149] Optionally, the length of the fifth side N2-1 is greater than the length of the seventh side N2-3. That is, the second virtual quadrilateral N2 is a trapezoid. In a preferred example, the second virtual quadrilateral N2 is an isosceles trapezoid.

[0150] Optionally, the length of the fifth side N2-1 is equal to the length of the seventh side N2-3. That is, the second virtual quadrilateral N2 is a parallelogram or a rectangle. In a preferred example, the second virtual quadrilateral N2 is a rectangle.

[0151] In one embodiment, if Figure 1As shown, the array substrate 11 further includes a plurality of scan lines 11a arranged at intervals; among the first isolation opening 12a1, the second isolation opening 12a2, and the third isolation opening 12a3, the included angle between the longest straight side of the first projection pattern of at least two types of isolation openings 12a and the arrangement direction of the plurality of scan lines 11a is a preset angle.

[0152] In the embodiment of the present application, the preset angle is greater than or equal to 0° and less than or equal to 90°. In one example, the preset angle is 0°, then the longest straight side of the first projection pattern is parallel to the arrangement direction of the plurality of scan lines 11a. In another example, the preset angle is 90°, then the longest straight side of the first projection pattern is perpendicular to the arrangement direction of the plurality of scan lines 11a. In yet another example, the preset angle is 45°.

[0153] In a preferred embodiment, the second electrode 133 of the light-emitting device 13 corresponding to at least two types of isolation openings 12a overlaps with the longest straight side of the first projection pattern on the array substrate 11, and the second electrode 133 further extends to the side wall of the isolation structure 12, so as to achieve lap joint with the side wall of the isolation structure 12.

[0154] By making the included angle between the longest straight side of the first projection pattern of at least two types of isolation openings 12a and the arrangement direction of the plurality of scan lines 11a be a preset angle, thus, it is equivalent to making the longest straight sides of these two types of isolation openings 12a extend along a specific direction. When depositing the second electrode 133, the scanning direction of the deposition source can be perpendicular to the extension direction of the longest straight side, so that the positive projection of the second electrode 133 overlaps with the longest straight side of the first projection pattern. In other words, it is beneficial to make the second electrode 133 extend to the side wall of the isolation structure 12 corresponding to the longest straight side, so that the lap joint area between the second electrode 133 and the isolation structure 12 is larger, reducing the lap joint impedance and improving the display effect.

[0155] In a preferred embodiment, the plurality of scan lines 11a are arranged along the first direction X, and each scan line 11a extends along the second direction Y. The longest straight side of the first projection pattern is perpendicular to the first direction X. When depositing the second electrode 133, the deposition source is scanned along the first direction X. The display panel 10 has a planar shape similar to a quadrilateral, the first direction X is the long side of the display panel 10, the second direction Y is the short side of the display panel 10, and the corner where the short side and the long side meet can be formed into a circle with a predetermined curvature or formed into a right angle. Of course, the planar shape of the display panel 10 can be formed into a shape similar to other polygons, circles or ellipses.

[0156] In one embodiment, among the first isolation opening 12a1, the second isolation opening 12a2, and the third isolation opening 12a3, the included angle between the longest straight side of the first projection pattern of any isolation opening 12a and the arrangement direction of the plurality of scanning lines 11a is a preset angle, and the positive projection of the second electrode 133 of the light-emitting device 13 corresponding to any isolation opening 12a on the array substrate 11 overlaps with the longest straight side of the first projection pattern. As Figure 8 shown, the included angle between the longest straight side of the first projection pattern S1-c of the third isolation opening 12a3 and the arrangement direction of the plurality of scanning lines 11a is a preset angle.

[0157] In this way, it is equivalent to improving the impedance of all the light-emitting devices 13, thereby significantly reducing the overlap impedance of all the light-emitting devices 13 and improving the display effect of the display panel 10.

[0158] In one embodiment, among the first isolation opening 12a1, the second isolation opening 12a2, and the third isolation opening 12a3, the longest straight side of the first projection pattern of at least one isolation opening 12a is greater than the dimension of the first projection pattern along the first direction X; the first direction X is perpendicular to the extension direction of the longest straight side of the first projection pattern.

[0159] In one example, as Figure 6 shown, the first projection pattern of the first isolation opening 12a1 is the first projection pattern S1-a, and the first projection side S11 of the first projection pattern S1-a is the longest straight side. The length of the first projection side S11 of the first projection pattern S1-a is greater than the dimension of the first projection pattern S1-a in the first direction X. In this way, the planar shape of the first isolation opening 12a1 is relatively "slender". When evaporating the second electrode 133, the scanning direction of the evaporation source can be parallel to the first direction X, so that the positive projection of the second electrode 133 overlaps with the longest straight side of the first projection pattern. In other words, it is beneficial to make the second electrode 133 extend to the side wall of the isolation structure 12 corresponding to the longest straight side, so that the overlap area between the second electrode 133 and the isolation structure 12 is larger, reducing the overlap impedance and improving the display effect.

[0160] Optionally, in the first projection pattern of at least one isolation opening 12a, the ratio of the longest straight side of the first projection pattern to the dimension of the first projection pattern along the first direction X is greater than or equal to 1.3. In the first projection pattern of at least one isolation opening 12a, the ratio of the longest straight side of the first projection pattern to the dimension of the first projection pattern along the first direction X is less than or equal to 2. In some embodiments, in at least one isolation opening 12a, the ratio range of the longest straight side of the first projection pattern of the isolation opening 12a with the smallest opening area in the top view to the dimension of the first projection pattern along the first direction X is 1.3 - 2.

[0161] Exemplarily, the ratio of the longest straight side of the first projected pattern to the dimension of the first projected pattern along the first direction X can be 1.3, 1.4, 1.5, 1.6, 1.8, 2, or any value between any two of the above. With the above arrangement, on the one hand, it is beneficial to make the overlapping area between the second electrode 133 and the isolation structure 12 relatively large, thereby reducing the overlapping impedance; on the other hand, it avoids the first isolation opening 12a1 from being too slender, so that the first light-emitting device 13a is too slender, which is not conducive to the arrangement of other light-emitting devices 13 and affects the display effect.

[0162] Optionally, in the first projected pattern of at least one isolation opening 12a, the longest straight side of the first projected pattern is greater than 10 μm; in this way, the overlapping area between the second electrode 133 and the isolation structure 12 can be relatively large, which is beneficial to reducing the overlapping impedance.

[0163] Optionally, in the first projected pattern of at least one isolation opening 12a, the longest straight side of the first projected pattern is greater than 16 μm. In this way, the overlapping area between the second electrode 133 and the isolation structure 12 can be even larger, which is beneficial to further reducing the overlapping impedance.

[0164] In one embodiment, as Figure 16 shown, the display panel 10 further includes a plurality of encapsulation parts 14. The plurality of encapsulation parts 14 include a plurality of first encapsulation parts 14a corresponding to the plurality of first light-emitting devices 13a, a plurality of second encapsulation parts 14b corresponding to the plurality of second light-emitting devices 13b, and a plurality of third encapsulation parts 14c corresponding to the plurality of third light-emitting devices 13c. The first encapsulation part 14a is disposed on the side of the corresponding first light-emitting device 13a away from the array substrate 11, the second encapsulation part 14b is disposed on the side of the corresponding second light-emitting device 13b away from the array substrate 11, and the third encapsulation part 14c is disposed on the side of the corresponding third light-emitting device 13c away from the array substrate 11.

[0165] In one embodiment, as Figure 16 shown, the display panel 10 further includes a pixel defining layer 17. The pixel defining layer 17 is provided with a first pixel opening (not shown in the figure), a second pixel opening (not shown in the figure), and a third pixel opening (not shown in the figure). The first light-emitting device 13a is disposed in the first pixel opening, the second light-emitting device 13b is disposed in the second pixel opening, and the third light-emitting device 13c is disposed in the third pixel opening. It can be understood that the planar shape of the first pixel opening matches the planar shape of the first isolation opening 12a1, the planar shape of the second pixel opening matches the planar shape of the second isolation opening 12a2, and the planar shape of the third pixel opening matches the planar shape of the third isolation opening 12a3.

[0166] In one embodiment, the display panel 10 further includes an organic encapsulation layer 15 and an inorganic encapsulation layer 16. The organic encapsulation layer 15 covers the isolation structure 12 and the encapsulation portion 14, and the inorganic encapsulation layer 16 covers the organic encapsulation layer 15.

[0167] In a second aspect, as Figure 17 shown, an embodiment of the present application provides a display device 100, including the display panel 10 in any of the above embodiments.

[0168] The display device 100 may be a portable electronic device such as a mobile phone, a smart phone, a tablet personal computer (PC), a mobile communication terminal, an electronic notebook, an e-book, a portable multimedia player (PMP), a navigation device, and an ultra-mobile PC (UMPC). In an embodiment, for example, the display device 100 may be a television, a laptop computer, a monitor, a billboard, or a display unit of an Internet of Things (IoT) device. In an embodiment, for example, the display device 100 may be a wearable device such as a smart watch, a watch phone, a glasses-type display, and a head-mounted display (HMD).

[0169] The display device 10 may be formed in a planar shape similar to a quadrilateral. In an embodiment, for example, the display device 10 may have a planar shape similar to a quadrilateral having a short side in the second direction Y and a long side in the first direction X. Alternatively, the display device 10 may have a planar shape similar to a quadrilateral having a long side in the second direction Y and a short side in the first direction X that intersects the second direction Y. The corners where the short side and the long side meet may be formed as a circle with a predetermined curvature or as a right angle. In an embodiment, the planar shape of the display device 10 is not limited to a quadrilateral and may be formed in a shape similar to other polygons, a circle, or an ellipse.

[0170] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

Claims

1. A display panel, characterized in that, Comprising: An array substrate; An isolation structure, located on one side of the array substrate and enclosing a plurality of isolation openings, the plurality of isolation openings including a plurality of first isolation openings, a plurality of second isolation openings, and a plurality of third isolation openings; A centroid connection line of two of the second isolation openings and two of the third isolation openings encloses a first virtual quadrilateral, and one of the first isolation openings is located within the first virtual quadrilateral; A centroid connection line of four of the first isolation openings encloses a second virtual quadrilateral, and one of the second isolation openings is located within the second virtual quadrilateral; A plurality of light-emitting devices, located on one side of the array substrate and including a plurality of first light-emitting devices, a plurality of second light-emitting devices, and a plurality of third light-emitting devices, the first light-emitting devices being disposed corresponding to the first isolation openings, the second light-emitting devices being disposed corresponding to the second isolation openings, and the third light-emitting devices being disposed corresponding to the third isolation openings; the first light-emitting devices, the second light-emitting devices, and the third light-emitting devices are respectively configured to emit light of different colors; each of the light-emitting devices includes a first electrode, a light-emitting structure, and a second electrode stacked, and the second electrode is electrically connected to the isolation structure; Wherein, a positive projection of an end of the isolation opening close to the array substrate on the array substrate is a first projection pattern; Among at least two types of the isolation openings including the first isolation openings, the second isolation openings, and the third isolation openings, an included angle between the longest straight sides of the first projection patterns of different types of isolation openings is α, 0° ≤ α ≤ 15°; and a positive projection of the second electrode of the light-emitting device corresponding to the at least two types of isolation openings on the array substrate overlaps with the longest straight side of the first projection pattern.

2. The display panel according to claim 1, wherein The area of the first projection pattern of the second isolation opening and the area of the first projection pattern of the third isolation opening are both greater than the area of the first projection pattern of the first isolation opening; An included angle between the longest straight side of the first projection pattern of at least one of the second isolation opening and the third isolation opening and the longest straight side of the first projection pattern of the first isolation opening is α; Optionally, the longest straight side of the first projection pattern of at least one of the second isolation opening and the third isolation opening is parallel to the longest straight side of the first projection pattern of the first isolation opening; Optionally, among the first isolation openings, the second isolation openings, and the third isolation openings, an included angle between the longest straight sides of any two types of isolation openings is α; and a positive projection of the second electrode of the light-emitting device corresponding to any one type of isolation opening on the array substrate overlaps with the longest straight side of the first projection pattern; Optionally, among the first isolation openings, the second isolation openings, and the third isolation openings, the longest straight sides of any two types of isolation openings are parallel.

3. The display panel according to claim 1, wherein The first projection pattern of at least one isolation opening includes two first projection edges that are oppositely arranged and parallel to each other along a first direction, and at least one of the two first projection edges is the longest straight edge of the first projection pattern; the first projection edge is perpendicular to the first direction; Optionally, the first projection pattern of at least two isolation openings has two first projection edges that are oppositely arranged and parallel to each other along a first direction, and at least one of the two first projection edges is the longest straight edge of the first projection pattern; Optionally, the first projection pattern of any one isolation opening has two first projection edges that are oppositely arranged and parallel to each other along a first direction, and at least one of the two first projection edges is the longest straight edge of the first projection pattern.

4. The display panel according to claim 3, wherein The first projection pattern includes two second projection edges that are oppositely arranged along a second direction, and the second projection edges connect the two first projection edges; Optionally, at least one of the two second projection edges of the same first projection pattern is an arc edge; Optionally, at least one of the two second projection edges of the same first projection pattern is a straight edge; Optionally, both of the two second projection edges of the same first projection pattern are arc edges; Optionally, both of the two second projection edges of the same first projection pattern are straight edges.

5. The display panel according to claim 4, wherein The area of the first projection pattern of the first isolation opening is S1, the area of the first projection pattern of the second isolation opening is S2, and the area of the first projection pattern of the third isolation opening is S3; S1 < S2 < S3; Optionally, both of the two second projection edges of the first projection pattern of the second isolation opening are arc edges; Optionally, both of the two second projection edges of the first projection pattern of the third isolation opening are arc edges.

6. The display panel according to claim 5, wherein Both of the two second projection edges of the first projection pattern of the first isolation opening are arc edges; Optionally, the first projection pattern of the first isolation opening has a first center line extending along the first direction and a second center line extending along the second direction; define the point on the second projection edge with the maximum distance from the first center line as the reference point; the first direction is perpendicular to the second direction; The reference points on the two second projection edges are respectively located on both sides of the second center line along the first direction.

7. The display panel according to claim 5, characterized in that Both of the two second projection edges of the first projection pattern of the first isolation opening are straight edges; Optionally, the lengths of the two second projection edges of the first projection pattern of the first isolation opening are equal; Optionally, the two second projection edges of the first projection pattern of the first isolation opening are parallel to each other; Optionally, the shape of the first projection pattern of the first isolation opening is a parallelogram; Optionally, the shape of the first projection pattern of the first isolation opening is a trapezoid; Optionally, the shape of the first projection pattern of the first isolation opening is an isosceles trapezoid.

8. The display panel according to claim 1, wherein The multiple first isolation openings are arranged in multiple first opening rows along a first direction, the multiple first opening rows are arranged at intervals along a second direction, the first direction intersects with the extending direction of the longest straight side of the first projection pattern of the first isolation opening, and the second direction is parallel to the extending direction of the longest straight side of the first projection pattern; Optionally, in the same first opening row, the adjacent sides of two adjacent first projection patterns are arranged in parallel; Optionally, the multiple second isolation openings and the multiple third isolation openings are arranged in multiple second opening rows along the first direction, and the multiple second opening rows are arranged at intervals along the second direction; In the same second opening row, the second isolation openings and the third isolation openings are arranged alternately along the first direction; Optionally, the first opening rows and the second opening rows are arranged alternately along the second direction; Optionally, in the same second opening row, the adjacent sides of two adjacent first projection patterns are arranged in parallel; Optionally, in the same second opening row, the center connection line of two adjacent first projection patterns is a third center line, and the longest straight side of the first projection pattern of the first isolation opening is perpendicular to the third center line.

9. The display panel according to claim 8, wherein The multiple first isolation openings are arranged in multiple first opening columns along the second direction, and the multiple first opening columns are arranged at intervals along the first direction; In the same first opening column, the adjacent sides of two adjacent first projection patterns intersect; Optionally, in the same first opening column, the distance between the adjacent sides of two adjacent first projection patterns increases along the direction from one first projection pattern to the other first projection pattern; Optionally, a light-transmitting hole is provided between two adjacent first isolation openings in the same first opening column.

10. The display panel according to claim 9, wherein The multiple second isolation openings and the multiple third isolation openings are arranged in multiple second opening columns along the second direction, and the multiple second opening columns are arranged at intervals along the first direction; In the same second opening column, the second isolation openings and the third isolation openings are arranged alternately along the second direction; Optionally, the first opening columns and the second opening columns are arranged alternately along the first direction; Optionally, the isolation openings in the first opening column and the isolation openings in the second opening column are arranged in a staggered manner along the first direction; Optionally, in the same second opening column, the center connection line of two adjacent first projection patterns is a fourth center line, and the longest straight side of the first projection pattern of the first isolation opening is parallel to the fourth center line.

11. The display panel according to any one of claims 1 to 10, characterized in that, The first virtual quadrilateral includes a first side and a third side that are parallel to each other, and a second side and a fourth side that connect the first side and the third side; Optionally, the length of the first side is greater than the length of the third side, or the length of the first side is equal to the length of the third side; Optionally, the second virtual quadrilateral includes a fifth side and a seventh side that are parallel to each other, and a sixth side and an eighth side that connect the fifth side and the seventh side; Optionally, the length of the fifth side is greater than the length of the seventh side, or the length of the fifth side is equal to the length of the seventh side.

12. The display panel according to any one of claims 1-10, characterized in that The array substrate further includes a plurality of scan lines arranged at intervals; among the first isolation opening, the second isolation opening, and the third isolation opening, the included angle between the longest straight side of the first projection pattern of at least two types of isolation openings and the arrangement direction of the plurality of scan lines is a preset angle.

13. The display panel according to claim 12, wherein Among the first isolation opening, the second isolation opening, and the third isolation opening, the included angle between the longest straight side of the first projection pattern of any isolation opening and the arrangement direction of the plurality of scan lines is a preset angle, and the positive projection of the second electrode of the light-emitting device corresponding to any isolation opening on the array substrate overlaps with the longest straight side of the first projection pattern.

14. The display panel according to claim 13, wherein Among the first isolation opening, the second isolation opening, and the third isolation opening, the longest straight side of the first projection pattern of at least one type of isolation opening is greater than the dimension of the first projection pattern along the first direction; The first direction is perpendicular to the extension direction of the longest straight side of the first projection pattern; Optionally, in the first projection pattern of the at least one type of isolation opening, the ratio range of the longest straight side of the first projection pattern to the dimension of the first projection pattern along the first direction is 1.3 - 2; Optionally, in the first projection pattern of the at least one type of isolation opening, the longest straight side of the first projection pattern is greater than 10 μm; Optionally, in the first projection pattern of the at least one type of isolation opening, the longest straight side of the first projection pattern is greater than 16 μm.

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

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