Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises an array substrate; the isolation structure is located on one side of the array substrate, and the isolation structure comprises a first conductive layer; the first conductive layer is enclosed to form a plurality of first openings; at least one protruding part is arranged on part of the wall face of each first opening in a protruding mode. The device layer is located on one side of the array substrate; the device layer comprises a plurality of light-emitting structures, the isolation structure is located between two adjacent light-emitting structures, and the plurality of light-emitting structures and the plurality of first openings are arranged in a one-to-one correspondence manner; at least part of orthographic projection of the light-emitting structure on the array substrate is located in orthographic projection of the wall face of the first opening on the array substrate. The light-emitting structure comprises a sub-light-emitting part and a sub-electrode part which are arranged in a stacked mode. Wherein the sub-electrode part is connected with the protruding part, and the orthographic projection of the sub-electrode part on the array substrate is overlapped with at least part of orthographic projection of the protruding part on the array substrate. The problem of poor display can be improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display technology is regarded as the most promising new flat panel display technology of the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed.

[0003] In the process of traditional display panel preparation, the graphicization of luminous pixels is usually achieved through a fine metal mask (FMM). FMM technology is mature and has rich experience in mass production. However, FMM technology also has problems such as limited precision, high development cost, and long development cycle. The fine metal mask-free technology eliminates the limitations of traditional OLED processes on display screen size, resolution, and other screen performance, and has the advantages of high performance, full-domain size, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN118678742A, CN118785761A, CN115224220A, CN118678729A, CN118660529A, and CN118660589A record the relevant content of the fine metal mask-free technology for reference.

[0004] However, 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 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 is located on one side of the array substrate, and the isolation structure includes a first conductive layer; the first conductive layer is surrounded to form a plurality of first openings; at least one protrusion is convexly provided on a partial wall surface of each of the first openings;

[0009] A device layer is located on one side of the array substrate; the device layer includes a plurality of light-emitting structures, the isolation structure is located between two adjacent light-emitting structures, and the plurality of light-emitting structures are arranged in one-to-one correspondence with the plurality of first openings; at least part of the orthographic projection of the light-emitting structure on the array substrate is located within the orthographic projection of the wall surface of the first opening on the array substrate; the light-emitting structure includes a sub-light-emitting portion and a sub-electrode portion that are stacked;

[0010] The sub-electrode portion is connected to the protruding portion, and an orthographic projection of the sub-electrode portion on the array substrate overlaps with at least a portion of an orthographic projection of the protruding portion on the array substrate.

[0011] The display panel provided in the embodiment of the present application performs patterning on the first conductive layer so that the first conductive layer encloses and forms a first opening, and at least one protrusion is convexly provided on a part of the wall surface of the first opening, and the sub-electrode part of the light-emitting structure can be conveniently overlapped with the protrusion. In this way, the first conductive layer is equivalent to the auxiliary electrode, which is equivalent to protruding the protrusion on the wall surface of the first opening, which not only reduces the connection difficulty between the sub-electrode part and the auxiliary electrode, improves the reliability of the electrical connection, but also reduces the electrical connection resistance between the two, thereby improving the display effect.

[0012] In one embodiment, the plurality of first openings are arranged into a plurality of rows along a first direction and into a plurality of columns along a second direction, and the first direction and the second direction intersect;

[0013] Optionally, the first direction is perpendicular to the second direction;

[0014] Optionally, a protrusion is provided on a wall surface of the first opening on one side along the first direction or the second direction;

[0015] Optionally, two protrusions are convexly provided on the wall surface of the first opening, and the two protrusions are arranged opposite to each other along the first direction or the second direction.

[0016] In one of the embodiments, the orthographic projection of the sub-light-emitting portion on the array substrate overlaps with at least a portion of the orthographic projection of the protrusion on the array substrate, or the orthographic projection of the sub-light-emitting portion on the array substrate is outside the orthographic projection of the protrusion on the array substrate.

[0017] In one embodiment, the device layer further includes a plurality of first electrodes, each of the first electrodes is disposed corresponding to at least two of the light emitting structures, and the first electrode is disposed between the corresponding light emitting structure and the array substrate;

[0018] The orthographic projection of the first electrode on the array substrate covers the orthographic projection of the corresponding light-emitting structure on the array substrate, and the orthographic projection of the first conductive layer between the corresponding light-emitting structures on the array substrate;

[0019] Optionally, in at least two of the light-emitting structures corresponding to the same first electrode, the sizes of the light-emitting structures along the second direction are different; in at least two of the light-emitting structures corresponding to the same first electrode, the sizes of the protrusions connected to the light-emitting structures along the second direction are different;

[0020] Optionally, in at least two of the light-emitting structures corresponding to the same first electrode, the sizes of the light-emitting structures along the second direction are the same; in at least two of the light-emitting structures corresponding to the same first electrode, the sizes of the protrusions connected to the light-emitting structures along the second direction are the same.

[0021] In one embodiment, the device layer further includes a plurality of first electrodes, each of the first electrodes is disposed corresponding to at least two of the light emitting structures in the same column, and the first electrode is disposed between the corresponding light emitting structure and the array substrate;

[0022] The orthographic projection of the first electrode on the array substrate covers the orthographic projection of the corresponding light-emitting structure on the array substrate, and the orthographic projection of the first conductive layer between the corresponding light-emitting structures on the array substrate;

[0023] Optionally, the plurality of columns include a plurality of first columns, a plurality of second columns, and a plurality of third columns, and the first columns, the second columns, and the third columns are alternately arranged in sequence along the first direction; among the first columns, the second columns, and the third columns, at least two columns have the same number of the first openings;

[0024] Optionally, the number of the first openings in the first column, the number of the first openings in the second column, and the number of the first openings in the third column are all the same;

[0025] Optionally, the number of the first openings in the first column, the number of the first openings in the second column, and the number of the first openings in the third column are different.

[0026] Optionally, in the first column, two or three of the light emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode;

[0027] Optionally, in the second column, two or three of the light emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode;

[0028] Optionally, in the third column, two or three light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode;

[0029] Optionally, in the first column, the two light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the second column, the two light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the third column, the two light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode;

[0030] Optionally, in the first column, the three light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the second column, the three light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the third column, the three light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode;

[0031] Optionally, in the first column, the two light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the second column, the three light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the third column, the two light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode.

[0032] Optionally, in at least two of the light-emitting structures corresponding to the same first electrode, the thickness of the sub-electrode portion of one of the light-emitting structures is not equal to the thickness of the sub-electrode portion of another light-emitting structure; or, in at least two of the light-emitting structures corresponding to the same first electrode, the thickness of the sub-electrode portion of each of the light-emitting structures is equal;

[0033] Optionally, the light emitting structures corresponding to the first openings in the same column have the same light emitting color;

[0034] Optionally, the light emitting colors of the two columns of light emitting structures corresponding to any two adjacent columns of the first openings are different.

[0035] In one embodiment, the plurality of rows include a plurality of first rows and a plurality of second rows, and the first rows and the second rows are alternately arranged along the second direction;

[0036] In the first row, the protrusions in each of the first openings are located on one side wall of the first opening along the first direction; in the second row, the protrusions in each of the first openings are located on the other side wall of the first opening along the first direction;

[0037] Optionally, the first row and the second row are arranged alternately in sequence along the second direction;

[0038] Optionally, the plurality of rows further include a plurality of third rows and a plurality of fourth rows, and the first row, the second row, the third row and the fourth row are alternately arranged in sequence along the second direction;

[0039] In the fourth row, the protrusions in each of the first openings are located on one side wall of the first opening along the first direction; in the third row, the protrusions in each of the first openings are located on the other side wall of the first opening along the first direction.

[0040] Optionally, in the same row of the first openings, three adjacent first openings respectively correspond to the light-emitting structures with different luminous colors.

[0041] In one of the embodiments, the isolation structure further includes a second conductive layer and a barrier layer stacked on the first conductive layer, the outer contour of the orthographic projection of the barrier layer on the array substrate is located outside the outer contour of the orthographic projection of the second conductive layer on the array substrate, and the orthographic projection of the first conductive layer on the array substrate is located within the range of the orthographic projection of the second conductive layer on the array substrate;

[0042] Optionally, the orthographic projection of the protrusion on the array substrate is located within the orthographic projection range of the barrier layer on the array substrate;

[0043] Optionally, the display panel also includes a pixel defining layer, which is located between the array substrate and the first conductive layer and encloses a plurality of sub-pixel openings; the plurality of sub-pixel openings are connected to the plurality of first openings one by one; and the distance between the protrusion and the sub-pixel opening is smaller than the distance between the remaining wall surface of the first conductive layer close to the sub-isolation opening and the sub-pixel opening.

[0044] In a second aspect, an embodiment of the present application provides a display panel, including:

[0045] An array substrate;

[0046] an isolation layer, located on one side of the array substrate, and comprising an isolation structure and a plurality of isolation openings enclosed by the isolation structure; the isolation structure comprises a first conductive layer, and the orthographic projection of the first conductive layer on the array substrate is a grid shape;

[0047] a device layer, located at one side of the array substrate, the device layer comprising a plurality of light-emitting devices arranged in one-to-one correspondence with the plurality of isolation openings; at least a portion of the light-emitting devices is arranged in the corresponding isolation openings; the light-emitting devices comprise a first electrode, a light-emitting portion, and a second electrode which are stacked;

[0048] The light-emitting portion of at least one of the light-emitting devices includes a plurality of sub-light-emitting portions, and the isolation opening corresponding to the at least one light-emitting device includes a plurality of sub-isolation openings corresponding one-to-one to the plurality of sub-light-emitting portions, and an isolation structure is provided between adjacent sub-isolation openings; the orthographic projection of the first electrode of the at least one light-emitting device on the array substrate covers the orthographic projection of the plurality of sub-light-emitting portions on the array substrate and the orthographic projection of the isolation structure between adjacent sub-isolation openings on the array substrate;

[0049] Wherein, at least one protrusion is convexly provided on a part of the wall surface of the first conductive layer close to the sub-isolation opening; and the second electrode of the at least one light-emitting device is electrically connected to the protrusion.

[0050] The display panel provided in the embodiment of the present application performs patterning on the first conductive layer so that a protrusion is convexly provided on a part of the wall surface of the first conductive layer close to the sub-isolation opening. In this way, the first conductive layer is equivalent to an auxiliary electrode, which is equivalent to protruding on the wall surface of the first conductive layer. This not only reduces the difficulty of connecting the second electrode and the auxiliary electrode, improves the reliability of the electrical connection, but also reduces the electrical connection resistance between the two, thereby improving the display effect.

[0051] In one of the embodiments, the orthographic projection of the second electrode of the at least one light-emitting device on the array substrate overlaps with the orthographic projection of the protrusion on the array substrate;

[0052] Optionally, the second electrode of at least one of the light-emitting devices includes a plurality of sub-electrode portions corresponding one-to-one to the plurality of sub-isolation openings, and the orthographic projection of each of the sub-electrode portions on the array substrate overlaps with the orthographic projection of the protrusion in the corresponding sub-isolation opening on the array substrate.

[0053] In one of the embodiments, the orthographic projection of the light-emitting portion of the light-emitting device on the array substrate is outside the orthographic projection range of the protruding portion on the array substrate;

[0054] Optionally, an orthographic projection of the light-emitting portion of the light-emitting device on the array substrate is outside a range of an orthographic projection of the first conductive layer on the array substrate.

[0055] In one of the embodiments, the isolation structure further includes a second conductive layer and a barrier layer stacked on the first conductive layer, the outer contour of the orthographic projection of the barrier layer on the array substrate is located outside the outer contour of the orthographic projection of the second conductive layer on the array substrate, and the orthographic projection of the first conductive layer on the array substrate is located within the range of the orthographic projection of the second conductive layer on the array substrate;

[0056] Optionally, the orthographic projection of the protrusion on the array substrate is located within the orthographic projection range of the barrier layer on the array substrate;

[0057] Optionally, the display panel further comprises a pixel defining layer, the pixel defining layer is located between the array substrate and the isolation layer, and encloses a plurality of pixel openings; the plurality of pixel openings are connected to the plurality of isolation openings in a one-to-one correspondence;

[0058] Among them, the pixel opening corresponding to at least one of the light-emitting devices includes a plurality of sub-pixel openings corresponding one by one to the plurality of sub-light-emitting portions; the distance between the protrusion and the sub-pixel opening is smaller than the distance between the remaining wall surface of the first conductive layer close to the sub-isolation opening and the sub-pixel opening.

[0059] In one embodiment, the plurality of sub-light-emitting portions of the same light-emitting device are arranged at intervals along the second direction; all the protrusions corresponding to the light-emitting device are located on at least one side of the light-emitting portion of the light-emitting device along the first direction;

[0060] The first direction and the second direction intersect and are both perpendicular to the thickness direction of the array substrate;

[0061] Optionally, the first direction is perpendicular to the second direction;

[0062] Optionally, the second electrode of the light-emitting device includes a plurality of sub-electrode portions corresponding one-to-one to the plurality of sub-isolation openings, and the sub-electrode portions corresponding to the sub-isolation openings are connected to the protrusions corresponding to the sub-isolation openings.

[0063] In one of the embodiments, all the protrusions corresponding to the same light emitting device are located on the same side of the light emitting portion of the light emitting device along the first direction.

[0064] In one embodiment, all the protrusions corresponding to the same light emitting device are located on both sides of the light emitting portion of the light emitting device along the first direction.

[0065] In one of the embodiments, in the same light-emitting device, at least one of the sub-light-emitting portions is provided with the protruding portions on both sides along the first direction;

[0066] Optionally, in the same light-emitting device, each of the sub-light-emitting portions is provided with the protruding portions on both sides along the first direction.

[0067] In one of the embodiments, in the same light emitting device, each of the sub-light emitting portions is provided with the protruding portion on one side along the first direction;

[0068] Optionally, in two adjacent sub-light-emitting portions of the same light-emitting device, the two protrusions corresponding to the two sub-light-emitting portions are respectively located on both sides of the light-emitting portion of the light-emitting device along the first direction;

[0069] Optionally, in two adjacent sub-isolation openings of the same isolation opening, the thickness of the sub-electrode portion corresponding to one sub-isolation opening is not equal to the thickness of the sub-electrode portion corresponding to the other sub-isolation opening.

[0070] In one embodiment, in the same light-emitting device, the size of each sub-light-emitting portion along the second direction is equal, and the size of each sub-electrode portion along the second direction is equal;

[0071] The sizes of the protrusions corresponding to the light emitting devices along the second direction are all equal.

[0072] In one embodiment, in the same light-emitting device, the sizes of at least two sub-light-emitting portions along the second direction are unequal, and the sizes of the sub-electrode portions corresponding to the at least two sub-light-emitting portions along the second direction are unequal;

[0073] Among the at least two sub-light-emitting portions, a size of the protrusion corresponding to one of the sub-light-emitting portions along the second direction is not equal to a size of the protrusion corresponding to the other sub-light-emitting portion along the second direction;

[0074] Optionally, in the same light-emitting device, the sizes of two adjacent sub-light-emitting portions along the second direction are unequal, and the sizes of the sub-electrode portions corresponding to the two adjacent sub-light-emitting portions along the second direction are unequal;

[0075] Optionally, in two adjacent sub-light-emitting portions of the same light-emitting device, a size of the protrusion corresponding to one sub-light-emitting portion along the second direction is not equal to a size of the protrusion corresponding to the other sub-light-emitting portion along the second direction;

[0076] Optionally, among two adjacent sub-light-emitting portions of the same light-emitting device, the size of one sub-light-emitting portion along the second direction is twice the size of the other sub-light-emitting portion along the second direction, the size of the sub-electrode portion corresponding to one sub-light-emitting portion along the second direction is twice the size of the sub-electrode portion corresponding to the other sub-light-emitting portion along the second direction, and the size of the protrusion corresponding to one sub-light-emitting portion along the second direction is twice the size of the protrusion corresponding to the other sub-light-emitting portion along the second direction.

[0077] In one embodiment, the plurality of light-emitting devices include a plurality of first light-emitting devices, a plurality of second light-emitting devices, and a plurality of third light-emitting devices, and the first light-emitting devices, the second light-emitting devices, and the third light-emitting devices emit light of different colors; 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 first light-emitting devices and the first isolation openings are correspondingly arranged, the second light-emitting devices and the second isolation openings are correspondingly arranged, and the third light-emitting devices and the third isolation openings are correspondingly arranged;

[0078] Among the first light-emitting device, the second light-emitting device and the third light-emitting device, the light-emitting portion of the light-emitting device of at least one color includes a plurality of sub-light-emitting portions;

[0079] Optionally, among the first light-emitting device, the second light-emitting device and the third light-emitting device, the light-emitting parts of at least two color light-emitting devices include a plurality of sub-light-emitting parts;

[0080] Optionally, among the first light-emitting device, the second light-emitting device and the third light-emitting device, the light-emitting portion of all the light-emitting devices includes a plurality of sub-light-emitting portions.

[0081] In one embodiment, the wavelength of light emitted by the first light-emitting device is between 600nm and 650nm; the light-emitting portion of the first light-emitting device includes a plurality of sub-light-emitting portions, the first isolation opening includes a plurality of first sub-isolation openings, and the second electrode of the first light-emitting device includes a plurality of first sub-electrode portions corresponding to the plurality of first sub-isolation openings one by one;

[0082] An orthographic projection of the first sub-electrode portion corresponding to the first sub-isolation opening on the array substrate overlaps with an orthographic projection of the protrusion corresponding to the first sub-isolation opening on the array substrate;

[0083] Optionally, the plurality of sub-light-emitting portions of the same first light-emitting device are arranged at intervals along the second direction; all the protrusions corresponding to the first light-emitting device are located on at least one side of the light-emitting portion of the first light-emitting device along the first direction;

[0084] The first direction and the second direction intersect and are both perpendicular to the thickness direction of the array substrate;

[0085] Optionally, the first direction is perpendicular to the second direction;

[0086] Optionally, in the same first light-emitting device, the sizes of the sub-light-emitting portions along the second direction are equal, the sizes of the first sub-electrode portions along the second direction are equal; the sizes of the protrusions corresponding to the first light-emitting device along the second direction are equal;

[0087] Optionally, in the same first light-emitting device, the sizes of two adjacent sub-light-emitting portions along the second direction are unequal, and the sizes of the first sub-electrode portions corresponding to the two adjacent sub-light-emitting portions along the second direction are unequal;

[0088] Optionally, in two adjacent sub-light-emitting portions of the same first light-emitting device, a size of the protrusion corresponding to one sub-light-emitting portion along the second direction is not equal to a size of the protrusion corresponding to the other sub-light-emitting portion along the second direction.

[0089] In one embodiment, all the protrusions corresponding to the first light-emitting device are located on the same side of the light-emitting portion of the first light-emitting device along the first direction; or, all the protrusions corresponding to the first light-emitting device are located on both sides of the light-emitting portion of the first light-emitting device along the first direction; and the protrusions are provided on both sides of each sub-light-emitting portion of the first light-emitting device along the first direction.

[0090] In one embodiment, all the protrusions corresponding to the first light-emitting device are located on both sides of the light-emitting portion of the first light-emitting device along the first direction; in two adjacent sub-light-emitting portions of the first light-emitting device, the two protrusions corresponding to the two sub-light-emitting portions are respectively located on both sides of the light-emitting portion of the first light-emitting device along the first direction;

[0091] Optionally, the plurality of first light emitting devices are arranged in columns along the second direction and in rows along the first direction;

[0092] In two adjacent first light-emitting devices along the second direction, one sub-light-emitting portion of one first light-emitting device is adjacent to one sub-light-emitting portion of another first light-emitting device, and two protrusions corresponding to the two adjacent sub-light-emitting portions are respectively located on both sides of the two first light-emitting devices along the first direction;

[0093] Alternatively, among two first light-emitting devices adjacent to each other along the second direction, one sub-light-emitting portion of one first light-emitting device is adjacent to one sub-light-emitting portion of another first light-emitting device, and the two protrusions corresponding to the two adjacent sub-light-emitting portions are located on the same side of the two first light-emitting devices along the first direction.

[0094] In one embodiment, the wavelength of light emitted by the second light-emitting device is between 505nm and 545nm; the light-emitting portion of the second light-emitting device includes a plurality of sub-light-emitting portions, the second isolation opening includes a plurality of second sub-isolation openings, and the second electrode of the second light-emitting device includes a plurality of second sub-electrode portions corresponding to the plurality of second sub-isolation openings one by one;

[0095] An orthographic projection of the second sub-electrode portion corresponding to the second sub-isolation opening on the array substrate overlaps with an orthographic projection of the protrusion corresponding to the second sub-isolation opening on the array substrate;

[0096] Optionally, the plurality of sub-light-emitting portions of the same second light-emitting device are arranged at intervals along the second direction; all the protrusions corresponding to the second light-emitting device are located on at least one side of the light-emitting portion of the second light-emitting device along the first direction;

[0097] Optionally, the number of the sub-light emitting portions in the second light emitting device is equal to or unequal to the number of the sub-light emitting portions in the first light emitting device;

[0098] Optionally, in the same second light-emitting device, the sizes of the sub-light-emitting portions along the second direction are equal, the sizes of the second sub-electrode portions along the second direction are equal; the sizes of the protrusions corresponding to the second light-emitting device along the second direction are equal;

[0099] Optionally, in the same second light-emitting device, the sizes of two adjacent sub-light-emitting portions along the second direction are unequal, and the sizes of the second sub-electrode portions corresponding to the two adjacent sub-light-emitting portions along the second direction are unequal;

[0100] Optionally, in two adjacent sub-light-emitting portions of the same second light-emitting device, a size of the protrusion corresponding to one sub-light-emitting portion along the second direction is not equal to a size of the protrusion corresponding to the other sub-light-emitting portion along the second direction.

[0101] In one embodiment, all the protrusions corresponding to the second light-emitting device are located on the same side of the light-emitting portion of the second light-emitting device along the first direction; or, all the protrusions corresponding to the second light-emitting device are located on both sides of the light-emitting portion of the second light-emitting device along the first direction; and the protrusions are provided on both sides of each sub-light-emitting portion of the second light-emitting device along the first direction.

[0102] In one embodiment, all the protrusions corresponding to the second light-emitting device are located on both sides of the light-emitting portion of the second light-emitting device along the first direction; in two adjacent sub-light-emitting portions of the second light-emitting device, the two protrusions corresponding to the two sub-light-emitting portions are respectively located on both sides of the light-emitting portion of the second light-emitting device along the first direction;

[0103] Optionally, the plurality of second light emitting devices are arranged in columns along the second direction and in rows along the first direction;

[0104] In two second light-emitting devices adjacent to each other along the second direction, one sub-light-emitting portion of one second light-emitting device is adjacent to one sub-light-emitting portion of another second light-emitting device, and two protrusions corresponding to the two adjacent sub-light-emitting portions are respectively located on both sides of the two second light-emitting devices along the first direction;

[0105] Alternatively, among two second light-emitting devices adjacent to each other along the second direction, one sub-light-emitting portion of one second light-emitting device is adjacent to one sub-light-emitting portion of another second light-emitting device, and the two protrusions corresponding to the two adjacent sub-light-emitting portions are located on the same side of the two second light-emitting devices along the first direction.

[0106] In one embodiment, the wavelength of light emitted by the third light-emitting device is between 440nm and 480nm; the light-emitting portion of the third light-emitting device includes a plurality of sub-light-emitting portions, the third isolation opening includes a plurality of third sub-isolation openings, and the second electrode of the third light-emitting device includes a plurality of third sub-electrode portions corresponding one-to-one to the plurality of third sub-isolation openings;

[0107] The orthographic projection of the third sub-electrode portion corresponding to the third sub-isolation opening on the array substrate overlaps with the orthographic projection of the protrusion corresponding to the third sub-isolation opening on the array substrate;

[0108] Optionally, the plurality of sub-light-emitting portions of the same third light-emitting device are arranged at intervals along the second direction; all the protrusions corresponding to the third light-emitting device are located on at least one side of the light-emitting portion of the third light-emitting device along the first direction;

[0109] Optionally, the number of the sub-light-emitting portions in the third light-emitting device is equal to or unequal to the number of the sub-light-emitting portions in the second light-emitting device;

[0110] Optionally, in the same third light-emitting device, the sizes of the sub-light-emitting portions along the second direction are equal, the sizes of the third sub-electrode portions along the second direction are equal; the sizes of the protrusions corresponding to the third light-emitting device along the second direction are equal;

[0111] Optionally, in the same third light-emitting device, the sizes of two adjacent sub-light-emitting portions along the second direction are unequal, and the sizes of the third sub-electrode portions corresponding to the two adjacent sub-light-emitting portions along the second direction are unequal;

[0112] Optionally, in two adjacent sub-light-emitting portions of the same third light-emitting device, a size of the protrusion corresponding to one sub-light-emitting portion along the second direction is not equal to a size of the protrusion corresponding to the other sub-light-emitting portion along the second direction.

[0113] In one embodiment, all the protrusions corresponding to the third light-emitting device are located on the same side of the light-emitting portion of the third light-emitting device along the first direction; or, all the protrusions corresponding to the third light-emitting device are located on both sides of the light-emitting portion of the third light-emitting device along the first direction; and the protrusions are provided on both sides of each sub-light-emitting portion of the third light-emitting device along the first direction.

[0114] In one embodiment, all the protrusions corresponding to the third light-emitting device are located on both sides of the light-emitting portion of the third light-emitting device along the first direction; in two adjacent sub-light-emitting portions of the third light-emitting device, the two protrusions corresponding to the two sub-light-emitting portions are respectively located on both sides of the light-emitting portion of the third light-emitting device along the first direction;

[0115] Optionally, the plurality of third light emitting devices are arranged in columns along the second direction and in rows along the first direction;

[0116] Among the two third light-emitting devices adjacent to each other along the second direction, one sub-light-emitting portion of one third light-emitting device is adjacent to one sub-light-emitting portion of the other third light-emitting device, and the two protrusions corresponding to the two adjacent sub-light-emitting portions are respectively located on both sides of the two third light-emitting devices along the first direction;

[0117] Alternatively, among the two third light-emitting devices adjacent to each other along the second direction, one sub-light-emitting portion of one of the third light-emitting devices is adjacent to one sub-light-emitting portion of the other third light-emitting device, and the two protrusions corresponding to the two adjacent sub-light-emitting portions are located on the same side of the two third light-emitting devices along the first direction.

[0118] In a third aspect, an embodiment of the present application provides a display panel, including:

[0119] An array substrate;

[0120] A pixel defining layer is located on one side of the array substrate and encloses a plurality of pixel openings;

[0121] an isolation layer, located on a side of the pixel defining layer away from the array substrate, and comprising an isolation structure and a plurality of isolation openings enclosed by the isolation structure; the plurality of isolation openings are connected to the plurality of pixel openings in a one-to-one correspondence; the isolation structure comprises a first conductive layer, a second conductive layer and a barrier layer stacked in a direction away from the array substrate; an orthographic projection outer contour of the barrier layer on the array substrate is located at the periphery of an orthographic projection outer contour of the second conductive layer on the array substrate;

[0122] a device layer, located at one side of the array substrate, the device layer comprising a plurality of light-emitting devices arranged in one-to-one correspondence with the plurality of isolation openings; at least a portion of the light-emitting devices is arranged in the corresponding isolation openings; the light-emitting devices comprise a first electrode, a light-emitting portion, and a second electrode which are stacked;

[0123] The light-emitting portion of at least one of the light-emitting devices includes a plurality of sub-light-emitting portions, and the isolation opening corresponding to the at least one light-emitting device includes a plurality of sub-isolation openings corresponding one-to-one to the plurality of sub-light-emitting portions, and an isolation structure is provided between adjacent sub-isolation openings; the orthographic projection of the first electrode of the at least one light-emitting device on the array substrate covers the orthographic projection of the plurality of sub-light-emitting portions on the array substrate and the orthographic projection of the isolation structure between adjacent sub-isolation openings on the array substrate; the pixel opening corresponding to the at least one light-emitting device includes a plurality of sub-pixel openings corresponding one-to-one to the plurality of sub-light-emitting portions;

[0124] At least one protrusion is protruding from a portion of the wall surface of the first conductive layer close to the sub-isolation opening; the distance between the protrusion and the sub-pixel opening is smaller than the distance between the remaining wall surface of the first conductive layer close to the sub-isolation opening and the sub-pixel opening; the second electrode of at least one of the light-emitting devices is electrically connected to the protrusion.

[0125] The display panel provided in the embodiment of the present application performs patterning on the first conductive layer so that a protrusion is convexly provided on a part of the wall surface of the first conductive layer close to the sub-isolation opening. The distance between the protrusion and the sub-pixel opening is further made smaller than the distance between the remaining wall surface (i.e., the non-protrusion) of the first conductive layer and the sub-pixel opening. In this way, the first conductive layer is equivalent to an auxiliary electrode, which is equivalent to protruding a protrusion on the wall surface of the first conductive layer, which not only reduces the difficulty of connecting the second electrode and the auxiliary electrode, improves the reliability of the electrical connection, but also reduces the electrical connection resistance between the two, thereby improving the display effect.

[0126] In a fourth aspect, an embodiment of the present application provides a display device, comprising a display panel in any of the above embodiments. The display device provided by the embodiment of the present application can reduce the overlap resistance of the second electrode (or sub-electrode portion), improve the overlap reliability of the second electrode (or sub-electrode portion), and improve the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0127] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0128] Figure 1 A schematic top view of a first conductive layer and a sub-electrode portion of a light-emitting structure of a display panel provided in one embodiment of the present application.

[0129] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of part of the structure from the AA cross-sectional perspective.

[0130] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the structure shown in and the light-emitting structure.

[0131] Figure 4 A schematic top view of a first conductive layer and a sub-electrode portion of a light-emitting structure of another display panel provided in an embodiment of the present application.

[0132] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of part of the structure from the perspective of the middle BB cross section.

[0133] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of part of the structure from the CC cross-sectional perspective.

[0134] Figure 7A schematic top view of a first conductive layer and a sub-electrode portion of a light-emitting structure of another display panel provided in an embodiment of the present application.

[0135] Figure 8 A schematic top view of a first conductive layer and a sub-electrode portion of a light-emitting structure of another display panel provided in an embodiment of the present application.

[0136] Fig. 9 A schematic top view of a first conductive layer and a sub-electrode portion of a light-emitting structure of another display panel provided in an embodiment of the present application.

[0137] Fig.10 A schematic top view of a first conductive layer and a sub-electrode portion of a light-emitting structure of another display panel provided in an embodiment of the present application.

[0138] Fig.11 A schematic top view of a first conductive layer and a sub-electrode portion of a light-emitting structure of another display panel provided in an embodiment of the present application.

[0139] Fig.12 A schematic top view of an isolation layer, a light-emitting device and a packaging part of a display panel provided in one embodiment of the present application.

[0140] Fig.13 for Fig.12 Schematic diagram of the cross-sectional structure of the DD section.

[0141] Fig.14 for Fig.12 Schematic diagram of the cross-sectional structure of the EE section.

[0142] Fig.15 for Fig.12 Schematic top view of the first conductive layer and the light-emitting device.

[0143] Fig.16 for Fig.12 A partial top view of the middle isolation layer.

[0144] Description of reference numerals:

[0145] 100, display panel; 1, array substrate; 2, isolation layer; 2a, isolation structure; 2b, isolation opening; 2b-1, first isolation opening; 2b-2, second isolation opening; 2b-3, third isolation opening; 2b1, sub-isolation opening; 2b1-1, first sub-isolation opening; 2b1-2, second sub-isolation opening; 2b1-3, third sub-isolation opening; 21, first conductive layer; 21a, first opening; 211, non-protruding portion; 212, protruding portion; 22, second conductive layer; 23, blocking layer; 3, device layer; 31, light-emitting device; 311, first electrode; 312, light-emitting portion ; 3121, sub-light-emitting portion; 313, second electrode; 3131, sub-electrode portion; 3131a, first sub-electrode portion; 3131b, second sub-electrode portion; 3131c, third sub-electrode portion; 31a, first light-emitting device; 31b, second light-emitting device; 31c, third light-emitting device; 31-1, light-emitting structure; 4, pixel defining layer; 4a, pixel opening; 4a1, sub-pixel opening; 5, encapsulation portion; L1, first column; L2, second column; L3, third column; H1, first row; H2, second row; H3, third row; H4, fourth row; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0146] 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.

[0147] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, they do not represent any order, quantity or importance, but are only used to distinguish different components. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present application, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. "Include" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0148] 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.

[0149] In the related art, the connection performance between the electrode and the auxiliary electrode of the light emitting device of the OLED display panel is poor, resulting in poor display.

[0150] In view of the above problems, embodiments of the present application provide a display panel and a display device capable of improving the display defect problem.

[0151] Combination Figure 1-Figure 16 As shown, an embodiment of the present application provides a display panel 100, which may be an organic light emitting diode display panel 100 (Organic Light Emitting Diode, referred to as OLED) or a quantum dot electroluminescent display panel 100 (Quantum Dot Light Emitting Diodes, referred to as QLED).

[0152] Specifically, refer to Figure 1-Figure 3 As shown, the display panel 100 includes an array substrate 1, an isolation structure 2a and a device layer 3, and the isolation structure 2a and the device layer 3 are both located on one side of the array substrate 1. The isolation structure 2a includes a first conductive layer 21, and the first conductive layer 21 encloses a plurality of first openings 21a; at least one protrusion 212 is convexly provided on a part of the wall surface of each of the first openings 21a. In other words, the first conductive layer 21 includes a non-protruding portion 211 and a protruding portion 212, and the non-protruding portion 211 and the protruding portion 212 enclose a first opening 21a. Further, the device layer 3 includes a plurality of light-emitting structures 31-1, and the isolation structure 2a is located between two adjacent light-emitting structures 31-1. And the plurality of light-emitting structures 31-1 are arranged one-to-one with the plurality of first openings 21a, and at least part of the orthographic projection of the light-emitting structure 31-1 on the array substrate 1 is located within the orthographic projection range of the wall surface of the first opening 21a on the array substrate 1; the light-emitting structure 31-1 includes a sub-light-emitting portion 3121 and a sub-electrode portion 3131 arranged in layers.

[0153] The sub-electrode portion 3131 is connected to the protrusion 212, and the orthographic projection of the sub-electrode portion 3131 on the array substrate 1 overlaps with at least a portion of the orthographic projection of the protrusion 212 on the array substrate 1. That is, part of the structure of the sub-electrode portion 3131 is placed on the protrusion 212 to achieve connection with the protrusion 212.

[0154] The display panel 100 provided in the embodiment of the present application performs patterning on the first conductive layer 21 so that the first conductive layer 21 encloses and forms a first opening 21a, and at least one protrusion 212 is convexly provided on a part of the wall surface of the first opening 21a, and the sub-electrode portion 3131 of the light-emitting structure 31-1 can be conveniently overlapped with the protrusion 212. In this way, the first conductive layer 21 is equivalent to an auxiliary electrode, which is equivalent to protruding the protrusion 212 on the wall surface of the first opening 21a, which not only reduces the difficulty of connecting the sub-electrode portion 3131 with the auxiliary electrode, improves the reliability of electrical connection, but also reduces the electrical connection resistance between the two, thereby improving the display effect. In addition, the non-protruding portion 211 is equivalent to "retracting" the non-protruding portion 211 relative to the protruding portion 212, so that the contact between the sub-light-emitting portion 3121 and the non-protruding portion 211 can be minimized, thereby helping to reduce leakage.

[0155] In one embodiment, if Figure 1 and Figure 4 As shown, the plurality of first openings 21a are arranged in a plurality of rows along the first direction X and in a plurality of columns along the second direction Y, and the first direction X intersects the second direction Y. In this way, the plurality of first openings 21a are arranged in an array.

[0156] In one embodiment, the plurality of first openings 21a are arranged in a plurality of rows along the second direction Y. Specifically, Figure 7 As shown, the plurality of first openings 21a may also be arranged in a plurality of columns instead of a plurality of rows. Figure 7 The first openings 21a are arranged in multiple rows. Figure 7 The arrangement shown is two rows, each row includes 7 first openings 21a. In each row, the first column L1 includes two first openings 21a, the second column L2 includes three first openings 21a, and the third column L3 includes two first openings 21a.

[0157] In one embodiment, the plurality of first openings 21 a are arranged in a plurality of rows along the first direction X. Specifically, the plurality of first openings 21 a may also be arranged in a plurality of rows instead of a plurality of columns.

[0158] Optionally, the first direction X is perpendicular to the second direction Y. In this way, the first openings 21 a can be arranged more regularly, so that the light emitting structures 31 - 1 can be arranged more regularly, which is beneficial to improving the display effect.

[0159] Alternatively, if Figure 1As shown, a protrusion 212 is convexly provided on the wall surface of the first opening 21a along the first direction X or the second direction Y, that is, a protrusion 212 is provided in the first opening 21a. The protrusion 212 is provided on the wall surface of the first opening 21a along the first direction X or the second direction Y. Figure 1 In the embodiment, the protrusion 212 is disposed on the wall surface of the first opening 21a on one side along the first direction X, and no protrusion 212 is disposed on the other wall surfaces of the first opening 21a. It is understandable that in the area where the protrusion 212 is located, the sub-light emitting portion 3121 may contact the protrusion 212.

[0160] By disposing a protrusion 212 in the first opening 21 a , the contact area between the sub-light emitting portion 3121 and the protrusion 212 can be reduced to the maximum extent, thereby improving the leakage phenomenon.

[0161] Alternatively, if Figure 4 , Figure 5 and Figure 6 As shown, two protrusions 212 are convexly disposed on the wall surface of the first opening 21a, and the two protrusions 212 are arranged opposite to each other along the first direction X or the second direction Y. Figure 4 In the embodiment, the protrusions 212 are disposed on the wall surfaces of both sides of the first opening 21 a along the first direction X, that is, the two protrusions 212 are disposed opposite to each other along the first direction X.

[0162] By providing two protrusions 212, the contact area between the sub-electrode portion 3131 and the protrusion 212 can be increased, thereby reducing the overlap resistance and improving the overlap reliability. By making the two protrusions 212 face each other, in the process of evaporation, the sub-electrode portion 3131 can overlap with both protrusions 212 by only one evaporation.

[0163] In one of the embodiments, the orthographic projection of the sub-light emitting portion 3121 on the array substrate 1 overlaps with at least a portion of the orthographic projection of the protruding portion 212 on the array substrate 1 .

[0164] In one embodiment, the orthographic projection of the sub-light emitting portion 3121 on the array substrate 1 is located outside the orthographic projection of the protruding portion 212 on the array substrate 1. This is helpful to improve the leakage phenomenon.

[0165] In one embodiment, if Fig.12 and Fig.13As shown, the device layer 3 also includes a plurality of first electrodes 311, each of which is arranged corresponding to at least two light-emitting structures 31-1, and the first electrode 311 is arranged between the corresponding light-emitting structure 31-1 and the array substrate 1. The orthographic projection of the first electrode 311 on the array substrate 1 covers the orthographic projection of the corresponding light-emitting structure 31-1 on the array substrate 1, and the orthographic projection of the non-protruding portion 211 between the corresponding light-emitting structures 31-1 on the array substrate 1. Here, the first electrode 311 is an anode, and the sub-electrode portion 3131 is equivalent to a cathode. It can be understood that the first electrode 311 is electrically connected to the pixel circuit.

[0166] In this way, at least two light-emitting structures 31-1 share the same first electrode 311 and are electrically connected to the same pixel circuit. In this way, the at least two light-emitting structures 31-1 and the first electrode 311 are equivalent to a light-emitting device 31. In other words, it is equivalent to dividing the light-emitting device 31 into multiple light-emitting structures 31-1. When a light-emitting structure 31-1 fails (such as dark spot failure caused by particle residue, packaging failure, etc.), it will not affect other light-emitting structures 31-1. Other light-emitting structures 31-1 can still emit light normally, thereby reducing the risk of poor display of the display panel 100.

[0167] Optionally, each first electrode 311 is disposed corresponding to at least two light emitting structures 31 - 1 arranged adjacent to each other along the second direction Y. This is equivalent to dividing the light emitting device 31 along the first direction X.

[0168] It should be noted that in Figure 1 , Figure 4 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 In order to illustrate the overlapping manner of the sub-electrode portion 3131 and the protrusion 212, in the above figure, only the sub-electrode portion 3131 of the light-emitting structure 31-1 is indicated by a number. It can be understood that the contour morphology of the sub-electrode portion 3131 is the same as the contour morphology of the light-emitting structure 31-1, and the outer dimensions of the sub-electrode portion 3131 are equal to the outer dimensions of the light-emitting structure 31-1. Therefore, in the above figure, the sub-electrode portion 3131 can also be considered as the light-emitting structure 31-1.

[0169] Optionally, refer to Fig. 9As shown, in at least two light-emitting structures 31-1 corresponding to the same first electrode 311, the sizes of the light-emitting structures 31-1 along the second direction Y are different. That is, in at least two light-emitting structures 31-1 corresponding to the same first electrode 311, the sizes of the sub-electrode parts 3131 of the light-emitting structures 31-1 along the second direction Y are different. In at least two light-emitting structures 31-1 corresponding to the same first electrode 311, the sizes of the protrusions 212 connected to the light-emitting structures 31-1 along the second direction Y are different. The size of the light-emitting structure 31-1 along the second direction Y is equivalent to the length of the light-emitting structure 31-1, and the size of the protrusion 212 along the second direction Y is equivalent to the length of the protrusion 212. It can be understood that the length of the protrusion 212 is adapted to the length of the light-emitting structure 31-1. That is, the protrusion 212 corresponding to the light-emitting structure 31-1 with a longer length is also longer, and the protrusion 212 corresponding to the light-emitting structure 31-1 with a shorter length is also shorter.

[0170] In this way, the light emitting device 31 includes at least two light emitting structures 31-1 of different lengths. On the one hand, it is convenient for designers to differentiate the light emitting structures 31-1 to meet design requirements; on the other hand, the light emitting areas of the light emitting structures 31-1 can be differentiated (irregularized), and the overlapping areas of different light emitting structures 31-1 can be differentiated (irregularized), which is conducive to weakening the display unevenness caused by poor overlapping of some light emitting structures 31-1 due to the process.

[0171] Optionally, refer to Figure 1 , Figure 4 and Figure 7 As shown, in at least two light-emitting structures 31-1 corresponding to the same first electrode 311, the dimensions of each light-emitting structure 31-1 along the second direction Y are the same, that is, the lengths of each light-emitting structure 31-1 are the same; in at least two light-emitting structures 31-1 corresponding to the same first electrode 311, the dimensions of the protrusions 212 connected to each light-emitting structure 31-1 along the second direction Y are the same, that is, the lengths of each protrusion 212 are the same.

[0172] In this way, the light emitting structures 31 - 1 can be arranged more regularly, which is helpful to reduce the difficulty of typesetting and manufacturing for designers.

[0173] It should be noted that the same in the embodiments of the present application may also be considered to be approximately the same, and equal may also be considered to be approximately equal.

[0174] In one embodiment, the plurality of columns include a plurality of first columns L1, a plurality of second columns L2, and a plurality of third columns L3, and the first columns L1, the second columns L2, and the third columns L3 are alternately arranged in sequence along the first direction X; Figure 1 , Figure 4 and Figure 7As shown, in the first column L1, the second column L2 and the third column L3, at least two columns have the same number of first openings 21a, so that designers can design the light emitting structures 31-1 in each column differently to meet design requirements.

[0175] Alternatively, if Figure 1 and Figure 4 As shown, the number of the first openings 21 a in the first column L1 , the number of the first openings 21 a in the second column L2 , and the number of the first openings 21 a in the third column L3 are all the same.

[0176] Alternatively, if Figure 7 As shown, the number of the first openings 21 a in the first column L1 is the same as the number of the first openings 21 a in the third column L3 , and the number of the first openings 21 a in the first column L1 is different from the number of the first openings 21 a in the second column L2 .

[0177] Optionally, the number of the first openings 21 a in the first column L1 , the number of the first openings 21 a in the second column L2 , and the number of the first openings 21 a in the third column L3 are different.

[0178] Optionally, in the first column L1, two or three light emitting structures 31-1 arranged adjacent to each other along the second direction Y are disposed corresponding to the same first electrode 311. Specifically, Figure 1 , Figure 4 , Figure 7 , Fig. 9 , Fig.10 and Fig.11 As shown, two light emitting structures 31-1 arranged adjacent to each other along the second direction Y are arranged corresponding to the same first electrode 311, that is, the light emitting device 31 of the first column L1 is divided into two light emitting structures 31-1. Figure 8 As shown, three light emitting structures 31 - 1 adjacently arranged along the second direction Y are disposed corresponding to the same first electrode 311 , that is, the light emitting device 31 of the first column L1 is divided into three light emitting structures 31 - 1 .

[0179] Optionally, in the second column L2, two or three light emitting structures 31-1 arranged adjacent to each other along the second direction Y are disposed corresponding to the same first electrode 311. Specifically, Figure 1 , Figure 4 , Fig. 9 , Fig.10 and Fig.11 As shown, two light emitting structures 31-1 arranged adjacent to each other along the second direction Y are arranged corresponding to the same first electrode 311, that is, the light emitting device 31 of the second column L2 is divided into two light emitting structures 31-1. Figure 7 and Figure 8As shown, three light emitting structures 31 - 1 adjacently arranged along the second direction Y are disposed corresponding to the same first electrode 311 , that is, the light emitting device 31 of the second column L2 is divided into three light emitting structures 31 - 1 .

[0180] Optionally, in the third column L3, two or three light emitting structures 31-1 arranged adjacent to each other along the second direction Y are disposed corresponding to the same first electrode 311. Specifically, Figure 1 , Figure 4 , Figure 7 , Fig. 9 , Fig.10 and Fig.11 As shown, two light emitting structures 31-1 arranged adjacent to each other along the second direction Y are arranged corresponding to the same first electrode 311, that is, the light emitting device 31 of the third column L3 is divided into two light emitting structures 31-1. Figure 8 As shown, three light emitting structures 31 - 1 adjacently arranged along the second direction Y are disposed corresponding to the same first electrode 311 , that is, the light emitting device 31 of the third column L3 is divided into three light emitting structures 31 - 1 .

[0181] Alternatively, if Figure 1 and Figure 4 As shown, in the first column L1, two light emitting structures 31-1 arranged adjacent to each other along the second direction Y are arranged corresponding to the same first electrode 311; in the second column L2, two light emitting structures 31-1 arranged adjacent to each other along the second direction Y are arranged corresponding to the same first electrode 311; in the third column L3, two light emitting structures 31-1 arranged adjacent to each other along the second direction Y are arranged corresponding to the same first electrode 311. In this way, all the light emitting devices 31 are divided into two light emitting structures 31-1.

[0182] Alternatively, if Figure 7 As shown, in the first column L1, two light emitting structures 31-1 arranged adjacently along the second direction Y are arranged correspondingly to the same first electrode 311; in the second column L2, three light emitting structures 31-1 arranged adjacently along the second direction Y are arranged correspondingly to the same first electrode 311; in the third column L3, two light emitting structures 31-1 arranged adjacently along the second direction Y are arranged correspondingly to the same first electrode 311. In this way, it is equivalent to dividing the light emitting device 31 of the first column L1 into two light emitting structures 31-1, dividing the light emitting device 31 of the second column L2 into three light emitting structures 31-1, and dividing the light emitting device 31 of the third column L3 into two light emitting structures 31-1.

[0183] Alternatively, if Figure 8As shown, in the first column L1, three light emitting structures 31-1 arranged adjacently along the second direction Y are arranged correspondingly to the same first electrode 311; in the second column L2, three light emitting structures 31-1 arranged adjacently along the second direction Y are arranged correspondingly to the same first electrode 311; in the third column L3, three light emitting structures 31-1 arranged adjacently along the second direction Y are arranged correspondingly to the same first electrode 311. In this way, all the light emitting devices 31 are divided into three light emitting structures 31-1.

[0184] Optionally, the light emitting structures 31 - 1 corresponding to the first openings 21 a in the same column emit the same light color.

[0185] Optionally, the two columns of light emitting structures 31 - 1 corresponding to any two adjacent columns of first openings 21 a have different light emitting colors. In this way, the light emitting structures 31 - 1 of different colors can be staggered in the first direction X, which is beneficial to improving the display effect.

[0186] Specifically, the light emitting colors of the light emitting structures 31-1 corresponding to the first column L1, the light emitting colors of the light emitting structures 31-1 corresponding to the second column L2, and the light emitting colors of the light emitting structures 31-1 corresponding to the third column L3 are different. Specifically, the light emitting structures 31-1 in the first column L1 are any one of a red light emitting structure, a blue light emitting structure, and a green light emitting structure, the light emitting structures 31-1 in the second column L2 are any one of a red light emitting structure, a blue light emitting structure, and a green light emitting structure, and the light emitting structures 31-1 in the third column L3 are any one of a red light emitting structure, a blue light emitting structure, and a green light emitting structure.

[0187] In one embodiment, in at least two light emitting structures 31 - 1 corresponding to the same first electrode 311 , the thickness of the sub-electrode portion 3131 of one light emitting structure 31 - 1 is not equal to the thickness of the sub-electrode portion 3131 of another light emitting structure 31 - 1 .

[0188] It should be noted that when the overlapping directions of two adjacent sub-electrode portions 3131 of the same light-emitting device 31 are different, the overlapping resistance of the two sub-electrode portions 3131 may be different. By differentially setting the thickness of the two sub-electrode portions 3131, it helps to balance the overlapping resistance of the two sub-electrode portions 3131 and improve display uniformity.

[0189] In one embodiment, in at least two light emitting structures 31 - 1 corresponding to the same first electrode 311 , the thicknesses of the sub-electrode portions 3131 of the light emitting structures 31 - 1 are all equal.

[0190] In one embodiment, if Fig.10 and Fig.11As shown, the plurality of rows include a plurality of first rows H1 and a plurality of second rows H2 , and the first rows H1 and the second rows H2 are arranged along the second direction Y alternately.

[0191] In the first row H1, the protrusions 212 in each first opening 21a are located on one side wall of the first opening 21a along the first direction X; in other words, the protrusions 212 in the first row H1 are located on the left side wall of the first opening 21a. In the second row H2, the protrusions 212 in each first opening 21a are located on the other side wall of the first opening 21a along the first direction X; in other words, the protrusions 212 in the second row H2 are located on the right side wall of the first opening 21a.

[0192] In this way, it is equivalent to making the overlapping directions of the light-emitting structures 31-1 in two adjacent rows different. The light-emitting structures 31-1 in the first row H1 are overlapped on the left, and the light-emitting structures 31-1 in the second row H2 are overlapped on the right. In this way, the overlapping schemes of the light-emitting structures 31-1 are designed differently. In this way, the uneven overlapping phenomenon caused by different scanning directions of specific evaporation equipment can be avoided. For example, when the sub-electrode portion 3131 of the first row H1 is evaporated, it is scanned from left to right, and the sub-electrode portion 3131 and the protrusion 212 overlap well; when the sub-electrode portion 3131 of the second row H2 is evaporated, it is scanned from right to left, and the sub-electrode portion 3131 and the protrusion 212 overlap well; the above-mentioned setting makes it easy for designers to adjust the evaporation process (such as scanning direction) of each row of sub-electrode portions 3131 according to actual conditions, so as to improve the uneven brightness caused by uneven overlapping.

[0193] Alternatively, if Fig.10 As shown, the first row H1 and the second row H2 are arranged alternately along the second direction Y in sequence.

[0194] Alternatively, if Fig.11 As shown, the multiple rows also include multiple third rows H3 and multiple fourth rows H4, and the first row H1, the second row H2, the third row H3 and the fourth row H4 are arranged alternately in sequence along the second direction Y. In the fourth row H4, the protrusions 212 in each first opening 21a are all located on one side wall of the first opening 21a along the first direction X; in other words, the protrusions 212 in the fourth row H4 are all located on the left side wall of the first opening 21a. In the third row H3, the protrusions 212 in each first opening 21a are all located on the other side wall of the first opening 21a along the first direction X; in other words, the protrusions 212 in the third row H3 are all located on the right side wall of the first opening 21a.

[0195] Furthermore, the light emitting structure 31-1 in the first row H1 and the light emitting structure 31-1 in the second row H2 constitute a light emitting device 31, the light emitting structure 31-1 in the third row H3 and the light emitting structure 31-1 in the fourth row H4 constitute a light emitting device 31, and the overlapping rules of the two adjacent light emitting devices 31 in the second direction Y are different. In this way, it is helpful to avoid the regular mura phenomenon caused by uneven overlapping of fixed rules, and improve the display effect.

[0196] Optionally, in the same row of first openings 21a, the three adjacent first openings 21a respectively correspond to light emitting structures 31-1 of different light emitting colors. Specifically, the three light emitting structures 31-1 corresponding to the three adjacent first openings 21a are respectively a red light emitting structure, a green light emitting structure and a blue light emitting structure.

[0197] In one embodiment, referring to Fig.12 , Fig.13 and Fig.14 As shown, the isolation structure 2a also includes a second conductive layer 22 and a blocking layer 23 stacked on the first conductive layer 21, and the outer contour of the orthographic projection of the blocking layer 23 on the array substrate 1 is located outside the outer contour of the orthographic projection of the second conductive layer 22 on the array substrate 1; the orthographic projection of the first conductive layer 21 on the array substrate 1 is located within the range of the orthographic projection of the second conductive layer 22 on the array substrate 1.

[0198] Optionally, the orthographic projection of the protrusion 212 on the array substrate 1 is located within the orthographic projection range of the blocking layer 23 on the array substrate 1 .

[0199] In one example, the material of the first conductive layer 21 may be molybdenum, the material of the second conductive layer 22 may be aluminum, and the material of the barrier layer 23 may be titanium or molybdenum.

[0200] Optionally, the display panel 100 further includes a pixel defining layer 4, which is located between the array substrate 1 and the first conductive layer 21 and encloses a plurality of sub-pixel openings 4a1; the plurality of sub-pixel openings 4a1 are connected to the plurality of first openings 21a in a one-to-one correspondence. Further, the pixel defining layer 4 is disposed between the array substrate 1 and the first conductive layer 21.

[0201] In one embodiment, referring to Figure 12-16As shown, a display panel 100 includes an array substrate 1, an isolation layer 2 and a device layer 3. The isolation layer 2 and the device layer 3 are both located on one side of the array substrate 1. The isolation layer 2 includes an isolation structure 2a and a plurality of isolation openings 2b formed by the isolation structure 2a; the isolation structure 2a includes a first conductive layer 21, and the orthographic projection of the first conductive layer 21 on the array substrate 1 is in a grid shape. The device layer 3 includes a plurality of light-emitting devices 31 arranged in one-to-one correspondence with the plurality of isolation openings 2b; at least part of the light-emitting device 31 is arranged in the corresponding isolation opening 2b; the light-emitting device 31 includes a first electrode 311, a light-emitting portion 312 and a second electrode 313 arranged in a stacked manner, wherein the first electrode 311 may be an anode, and the second electrode 313 may be a cathode.

[0202] The light-emitting portion 312 of at least one light-emitting device 31 includes a plurality of sub-light-emitting portions 3121, and the isolation opening 2b corresponding to the at least one light-emitting device 31 includes a plurality of sub-isolation openings 2b1 corresponding to the plurality of sub-light-emitting portions 3121, and an isolation structure 2a is provided between adjacent sub-isolation openings 2b1; the orthographic projection of the first electrode 311 of at least one light-emitting device 31 on the array substrate 1 covers the orthographic projection of the plurality of sub-light-emitting portions 3121 on the array substrate 1 and the orthographic projection of the isolation structure 2a between adjacent sub-isolation openings 2b1 on the array substrate 1. In other words, the light-emitting portion 312 of the light-emitting device 31 is divided into a plurality of sub-light-emitting portions 3121, and the plurality of sub-light-emitting portions 3121 share the same first electrode 311, that is, the plurality of sub-light-emitting portions 3121 are all electrically connected to the same driving circuit. In this way, when a certain sub-light-emitting portion 3121 fails (such as dark spot failure caused by residual particles, packaging failure, etc.), it will not affect other sub-light-emitting portions 3121, and other sub-light-emitting portions 3121 can still emit light normally, thereby reducing the risk of poor display of the display panel 100. In addition, the orthographic projection of the first electrode 311 also covers the orthographic projection of the isolation structure 2a between adjacent sub-isolation openings 2b1, so that the coverage area of ​​the first electrode 311 is larger, which is conducive to reducing the resistance of the first electrode 311, thereby reducing the power consumption of the display panel 100.

[0203] Among them, at least one protrusion 212 is protruding from a part of the wall surface of the first conductive layer 21 close to the sub-isolation opening 2b1; in other words, the first conductive layer 21 includes a protrusion 212 and a non-protrusion 211 facing the sub-isolation opening 2b1, and the protrusion 212 and the non-protrusion 211 are arranged in sequence along the circumferential direction of the sub-isolation opening 2b1; the second electrode 313 of at least one light-emitting device 31 is electrically connected to the protrusion 212.

[0204] The display panel 100 provided in the embodiment of the present application performs patterning on the first conductive layer 21, so that the protrusion 212 and the non-protrusion 211 are arranged in a circumferential direction around the sub-isolation opening 2b1, and further, the orthographic projection of the protrusion 212 on the array substrate 1 is located on the side of the orthographic projection of the second conductive layer 22 on the array substrate 1 close to the sub-isolation opening 2b1, and the orthographic projection of the non-protrusion 211 on the array substrate 1 is located within the orthographic projection range of the second conductive layer 22 on the array substrate 1, which is equivalent to making the protrusion 212 protrude from the non-protrusion 211. In this way, the isolation structure 2a is equivalent to the auxiliary electrode, which is equivalent to protruding the protrusion 212 on the wall surface of the isolation opening 2b, which not only reduces the difficulty of connecting the second electrode 313 with the auxiliary electrode, improves the reliability of electrical connection, but also reduces the electrical connection resistance between the two, thereby improving the display effect. In addition, the non-protruding portion 211 is equivalent to "retracting" the non-protruding portion 211 relative to the protruding portion 212. In this way, the contact between the sub-light-emitting portion 3121 and the non-protruding portion 211 can be minimized, which is beneficial to reducing leakage.

[0205] In one embodiment, the isolation structure 2a further includes a second conductive layer 22 and a barrier layer 23 stacked on the first conductive layer 21; the orthographic projection outer contour of the barrier layer 23 on the array substrate 1 is located outside the orthographic projection outer contour of the second conductive layer 22 on the array substrate 1.

[0206] In an example, the orthographic projection of the protrusion 212 on the array substrate 1 is located within the orthographic projection range of the barrier layer 23 on the array substrate 1 .

[0207] In one example, part of the orthographic projection of the protrusion 212 on the array substrate 1 is located on the side of the orthographic projection of the second conductive layer 22 on the array substrate 1 close to the sub-isolation opening 2b1, and the orthographic projection of the non-protrusion 211 on the array substrate 1 is located within the range of the orthographic projection of the second conductive layer 22 on the array substrate 1; in other words, the protrusion 212 protrudes from the side wall of the second conductive layer 22 close to the sub-isolation opening 2b1, and the non-protrusion 211 is located directly below the second conductive layer 22 and does not protrude from the side wall of the second conductive layer 22 close to the sub-isolation opening 2b1.

[0208] In one embodiment, the orthographic projection of the second electrode 313 of at least one light emitting device 31 on the array substrate 1 overlaps with the orthographic projection of the protrusion 212 on the array substrate 1. That is, part of the structure of the second electrode 313 is placed on the protrusion 212 to achieve connection with the protrusion 212. In this way, the reliability of the electrical connection can be improved, and the electrical connection resistance between the two can be reduced, thereby improving the display effect.

[0209] Optionally, the orthographic projection of the second electrode 313 of at least one light emitting device 31 on the array substrate 1 is located outside the orthographic projection of the non-protruding portion 211 on the array substrate 1. In this way, the second electrode 313 is not in direct contact with the non-protruding portion 211.

[0210] Optionally, the second electrode 313 of at least one light-emitting device 31 includes a plurality of sub-electrode portions 3131 corresponding to the plurality of sub-isolation openings 2b1 one by one, and the orthographic projection of each sub-electrode portion 3131 on the array substrate 1 overlaps with the orthographic projection of the protrusion 212 in the corresponding sub-isolation opening 2b1 on the array substrate 1. That is, part of the structure of the sub-electrode portion 3131 is laid on the protrusion 212 to achieve connection with the protrusion 212.

[0211] In one embodiment, the orthographic projection of the light emitting portion 312 of the light emitting device 31 on the array substrate 1 is outside the orthographic projection range of the protrusion 212 on the array substrate 1. In this way, the light emitting portion 312 can be prevented from contacting the non-protrusion 211, which is beneficial to reduce leakage.

[0212] Optionally, the orthographic projection of the light emitting portion 312 of the light emitting device 31 on the array substrate 1 is outside the orthographic projection range of the first conductive layer 21 on the array substrate 1. In this way, the light emitting portion 312 can be prevented from contacting the first conductive layer 21, which is conducive to minimizing leakage.

[0213] In one embodiment, the display panel 100 further includes a pixel defining layer 4, which is located between the array substrate 1 and the isolation layer 2 and encloses a plurality of pixel openings 4a; the plurality of pixel openings 4a are connected to the plurality of isolation openings 2b in a one-to-one correspondence.

[0214] Among them, the pixel opening 4a corresponding to at least one light-emitting device 31 includes a plurality of sub-pixel openings 4a1 corresponding to the plurality of sub-light-emitting portions 3121 one by one; the distance between the protruding portion 212 and the sub-pixel opening 4a1 is smaller than the distance between the remaining wall surface of the first conductive layer 21 close to the sub-isolation opening 2b1 and the sub-pixel opening 4a1, in other words, the distance between the protruding portion 212 and the sub-pixel opening 4a1 is smaller than the distance between the non-protruding portion 211 and the sub-pixel opening 4a1. In this way, taking the boundary of the sub-pixel opening 4a1 as a reference, comparing the non-protruding portion 211 and the protruding portion 212 is equivalent to "retracting" the non-protruding portion 211 and "protruding" the protruding portion 212, which is conducive to improving the overlap reliability on the one hand and reducing leakage on the other hand.

[0215] In one embodiment, in combination Figure 12-Figure 15As shown, multiple sub-light-emitting portions 3121 of the same light-emitting device 31 are arranged at intervals along the second direction Y; all protrusions 212 corresponding to the light-emitting device 31 are located on at least one side of the light-emitting portion 312 of the light-emitting device 31 along the first direction X. The first direction X and the second direction Y intersect and are both perpendicular to the thickness direction of the array substrate 1. In this way, it is equivalent to cutting the light-emitting portion 312 of the light-emitting device 31 in the horizontal direction and setting the protrusion 212 on at least one side of the light-emitting portion 312 in the horizontal direction. In this way, it is beneficial to set the length of the protrusion 212 (the size along the second direction Y) to be longer in a limited space, thereby reducing the lap resistance.

[0216] Optionally, the first direction X and the second direction Y are perpendicular.

[0217] Optionally, the second electrode 313 of the light emitting device 31 includes a plurality of sub-electrode portions 3131 corresponding to the plurality of sub-isolation openings 2b1 one by one, and the sub-electrode portions 3131 corresponding to the sub-isolation openings 2b1 are connected to the protrusions 212 in the corresponding sub-isolation openings 2b1.

[0218] In one embodiment, all protrusions 212 corresponding to the same light emitting device 31 are located on the same side of the light emitting portion 312 of the light emitting device 31 along the first direction X. Figure 1 As shown, it is equivalent to making each protrusion 212 corresponding to the same light-emitting device 31 located on the left side of the center of the sub-isolation opening 2b1 (or the first opening 21a described above) corresponding to the protrusion 212, or, each protrusion 212 corresponding to the same light-emitting device 31 is located on the right side of the center of the sub-isolation opening 2b1 (or the first opening 21a described above) corresponding to the protrusion 212. In this way, the arrangement of the protrusions 212 is more regular, which is convenient for designers to perform typesetting design.

[0219] In one embodiment, all protrusions 212 corresponding to the same light emitting device 31 are located on both sides of the light emitting portion 312 of the light emitting device 31 along the first direction X. Figure 4 , Fig.10 and Fig.11 As shown, it is equivalent to making a part of the protrusions 212 corresponding to the same light-emitting device 31 located on the left side of the center of the corresponding sub-isolation opening 2b1 (or the first opening 21a), and another part of the protrusions 212 located on the right side of the center of the corresponding sub-isolation opening 2b1 (or the first opening 21a). In this way, it is helpful to improve the poor display problem caused by poor overlap on one side (left or right) of the light-emitting device 31.

[0220] In one embodiment, in the same light emitting device 31, at least one sub-light emitting portion 3121 is provided with protrusions 212 on both sides along the first direction X. Figure 4As shown, it is equivalent to providing two protrusions 212 in one first opening 21a, and the two protrusions 212 are located on the left and right side walls of the first opening 21a. In this way, on the one hand, the contact area between the sub-electrode part 3131 and the protrusion 212 can be increased, thereby reducing the lap resistance and improving the lap reliability; on the other hand, during the evaporation process, the sub-electrode part 3131 can be overlapped with both protrusions 212 by only one evaporation.

[0221] Optionally, in the same light emitting device 31, each sub-light emitting portion 3121 is provided with protrusions 212 on both sides along the first direction X. In this way, it is beneficial to further reduce the bridging resistance, improve the bridging reliability, and thus improve the display effect.

[0222] In one embodiment, in the same light emitting device 31, each sub-light emitting portion 3121 is provided with a protrusion 212 on one side along the first direction X. Figure 1 As shown, it is equivalent to making each protrusion 212 of all protrusions 212 corresponding to the same light-emitting device 31 located on the left side of the center of the corresponding sub-isolation opening 2b1 (or the first opening 21a), or each protrusion 212 located on the right side of the center of the corresponding sub-isolation opening 2b1 (or the first opening 21a). The arrangement of the protrusions 212 is relatively regular, which is convenient for designers to perform typesetting design.

[0223] Optionally, in two adjacent sub-light emitting portions 3121 of the same light emitting device 31, the two protrusions 212 corresponding to the two sub-light emitting portions 3121 are respectively located on both sides of the light emitting portion 312 of the light emitting device 31 along the first direction X. Fig.10 and Fig.11 As shown, the protrusion 212 in the first opening 21a of the first row H1 is located on the left wall surface of the first opening 21a, and the sub-electrode portion 3131 of the first row H1 is overlapped on the left side. The protrusion 212 in the first opening 21a of the second row H2 is located on the right wall surface of the first opening 21a, and the sub-electrode portion 3131 of the second row H2 is overlapped on the right side.

[0224] In this way, the overlapping schemes of two adjacent sub-electrode parts 3131 are designed differently. In this way, the uneven overlapping phenomenon caused by different scanning directions of a specific evaporation equipment can be avoided. For example, when the sub-electrode part 3131 of the first row H1 is evaporated, it is scanned from left to right, and the sub-electrode part 3131 and the protrusion 212 overlap well; when the sub-electrode part 3131 of the second row H2 is evaporated, it is scanned from right to left, and the sub-electrode part 3131 and the protrusion 212 overlap well; the above settings make it easy for designers to adjust the evaporation process (such as scanning direction) of each row of sub-electrode parts 3131 according to actual conditions, so as to improve the uneven brightness caused by uneven overlapping.

[0225] Optionally, in two adjacent sub-isolation openings 2b1 of the same isolation opening 2b, the thickness of the sub-electrode portion 3131 corresponding to one sub-isolation opening 2b1 is not equal to the thickness of the sub-electrode portion 3131 corresponding to the other sub-isolation opening 2b1.

[0226] It should be noted that when the overlapping directions of two adjacent sub-electrode portions 3131 of the same light-emitting device 31 are different, the overlapping resistance of the two sub-electrode portions 3131 may be different. By differentially setting the thickness of the two sub-electrode portions 3131, it helps to balance the overlapping resistance of the two sub-electrode portions 3131 and improve display uniformity.

[0227] In one embodiment, reference Figure 1 , Figure 4 and Figure 7 As shown, in the same light-emitting device 31, the size of each sub-light-emitting portion 3121 along the second direction Y is equal, and the size of each sub-electrode portion 3131 along the second direction Y is equal. The size of each protrusion 212 corresponding to the light-emitting device 31 along the second direction Y is equal. Here, the size of the sub-light-emitting portion 3121 along the second direction Y is the length of the sub-light-emitting portion 3121, the size of the sub-electrode portion 3131 along the second direction Y is the length of the sub-electrode portion 3131, and the size of the protrusion 212 along the second direction Y is the length of the protrusion 212.

[0228] The above arrangement can make the light-emitting effects of each sub-light-emitting unit 3121 more consistent, which is beneficial to improving display uniformity.

[0229] In one embodiment, in the same light-emitting device 31, the sizes of at least two sub-light-emitting portions 3121 along the second direction Y are not equal, and the sizes of the sub-electrode portions 3131 corresponding to at least two sub-light-emitting portions 3121 along the second direction Y are not equal. Among at least two sub-light-emitting portions 3121, the size of the protrusion 212 corresponding to one sub-light-emitting portion 3121 along the second direction Y is not equal to the size of the protrusion 212 corresponding to the other sub-light-emitting portion 3121 along the second direction Y.

[0230] In this way, on the one hand, the light-emitting areas of different sub-light-emitting portions 3121 can be differentiated (irregularized), and the overlapping areas of the sub-electrode portions 3131 corresponding to different sub-light-emitting portions 3121 can be differentiated (irregularized), which is beneficial to weakening the display unevenness caused by poor overlapping of some sub-electrode portions 3131 due to the process technology.

[0231] Optionally, refer to Fig. 9As shown, in the same light-emitting device 31, the sizes of two adjacent sub-light-emitting portions 3121 along the second direction Y are not equal, and the sizes of the sub-electrode portions 3131 corresponding to the two adjacent sub-light-emitting portions 3121 along the second direction Y are not equal. For example, the length of the sub-light-emitting portion 3121 located in the first row H1 is greater than the length of the sub-light-emitting portion 3121 located in the second row H2, and the length of the sub-electrode portion 3131 located in the first row H1 is greater than the length of the sub-electrode portion 3131 located in the second row H2. The length of the sub-light-emitting portion 3121 located in the third row H3 is less than the length of the sub-light-emitting portion 3121 located in the fourth row H4, and the length of the sub-electrode portion 3131 located in the third row H3 is less than the length of the sub-electrode portion 3131 located in the fourth row H4.

[0232] Optionally, in two adjacent sub-light-emitting portions 3121 of the same light-emitting device 31, the size of the protrusion 212 corresponding to one sub-light-emitting portion 3121 along the second direction Y is not equal to the size of the protrusion 212 corresponding to the other sub-light-emitting portion 3121 along the second direction Y. For example, the length of the protrusion 212 located in the first row H1 is greater than the length of the protrusion 212 located in the second row H2. The length of the protrusion 212 located in the third row H3 is less than the length of the protrusion 212 located in the fourth row H4. The above arrangement can match the length of the protrusion 212 with the length of the sub-electrode portion 3131, which is beneficial to maximize the reduction of the overlap resistance and improve the display effect.

[0233] Optionally, in two adjacent sub-light-emitting portions 3121 of the same light-emitting device 31, the size of one sub-light-emitting portion 3121 along the second direction Y is twice the size of the other sub-light-emitting portion 3121 along the second direction Y, the size of the sub-electrode portion 3131 corresponding to one sub-light-emitting portion 3121 along the second direction Y is twice the size of the sub-electrode portion 3131 corresponding to the other sub-light-emitting portion 3121 along the second direction Y, and the size of the protrusion 212 corresponding to one sub-light-emitting portion 3121 along the second direction Y is twice the size of the protrusion 212 corresponding to the other sub-light-emitting portion 3121 along the second direction Y. For example, the length of the sub-light-emitting portion 3121 located in the first row H1 is twice the length of the sub-light-emitting portion 3121 located in the second row H2, the length of the sub-electrode portion 3131 located in the first row H1 is twice the length of the sub-electrode portion 3131 located in the second row H2, and the length of the protrusion 212 located in the first row H1 is twice the length of the protrusion 212 located in the second row H2. The length of the sub-light-emitting portion 3121 located in the fourth row H4 is twice the length of the sub-light-emitting portion 3121 located in the third row H3, the length of the sub-electrode portion 3131 located in the fourth row H4 is twice the length of the sub-electrode portion 3131 located in the third row H3, and the length of the protrusion 212 located in the fourth row H4 is twice the length of the protrusion 212 located in the third row H3.

[0234] The above-mentioned arrangement can make the light-emitting areas of different sub-light-emitting portions 3121 of the same light-emitting device 31 differentiated (irregular), and the overlapping areas of the sub-electrode portions 3131 corresponding to different sub-light-emitting portions 3121 differentiated (irregular), which is beneficial to better weaken the display unevenness caused by poor overlapping of some sub-electrode portions 3131 due to the process technology, thereby improving the display effect.

[0235] In one embodiment, referring to Figure 12-16 As shown, the plurality of light emitting devices 31 include a plurality of first light emitting devices 31a, a plurality of second light emitting devices 31b and a plurality of third light emitting devices 31c, and the light emitted by the first light emitting devices 31a, the second light emitting devices 31b and the third light emitting devices 31c are different in color; the plurality of isolation openings 2b include a plurality of first isolation openings 2b-1, a plurality of second isolation openings 2b-2 and a plurality of third isolation openings 2b-3, the first light emitting devices 31a and the first isolation openings 2b-1 are arranged correspondingly, the second light emitting devices 31b and the second isolation openings 2b-2 are arranged correspondingly, and the third light emitting devices 31c and the third isolation openings 2b-3 are arranged correspondingly. Among the first light emitting devices 31a, the second light emitting devices 31b and the third light emitting devices 31c, the light emitting portion 312 of the light emitting device 31 of at least one color includes a plurality of sub-light emitting portions 3121.

[0236] In this way, it is equivalent to dividing the light-emitting portion 312 of the same color into multiple sub-light-emitting portions 3121, which is beneficial to keep the light-emitting portions 312 of the same color consistent and to improve display uniformity.

[0237] Optionally, in the first light emitting device 31 a , the second light emitting device 31 b and the third light emitting device 31 c , the light emitting portion 312 of at least two color light emitting devices 31 includes a plurality of sub-light emitting portions 3121 .

[0238] In this way, compared with the method of segmenting the light-emitting portion 312 of only one color, the present embodiment segments the light-emitting portion 312 of at least two colors, so that the light-emitting portions 312 of the two colors can overcome the poor display problem caused by failure (such as dark spot failure caused by particle residue, packaging failure, etc.), thereby further reducing the risk of poor display.

[0239] Optionally, in the first light emitting device 31a, the second light emitting device 31b and the third light emitting device 31c, the light emitting portion 312 of all the light emitting devices 31 includes a plurality of sub-light emitting portions 3121. In this way, the light emitting portions 312 of the three colors can all overcome the display failure caused by failure (such as dark spot failure caused by particle residue, packaging failure, etc.), further reducing the risk of display failure.

[0240] In one embodiment, the wavelength of light emitted by the first light-emitting device 31a is between 600nm and 650nm; the light-emitting portion 312 of the first light-emitting device 31a includes a plurality of sub-light-emitting portions 3121, the first isolation opening 2b-1 includes a plurality of first sub-isolation openings 2b1-1, and the second electrode 313 of the first light-emitting device 31a includes a plurality of first sub-electrode portions 3131a corresponding one-to-one to the plurality of first sub-isolation openings 2b1-1; the orthographic projection of the first sub-electrode portion 3131a corresponding to the first sub-isolation opening 2b1-1 on the array substrate 1 overlaps with the orthographic projection of the protrusion 212 corresponding to the first sub-isolation opening 2b1-1 on the array substrate 1.

[0241] Optionally, a plurality of sub-light emitting portions 3121 of the same first light emitting device 31a are arranged at intervals along the second direction Y; all protrusions 212 corresponding to the first light emitting device 31a are located on at least one side of the light emitting portion 312 of the first light emitting device 31a along the first direction X. Figure 1 As shown, all the protrusions 212 corresponding to the first light emitting device 31a are located on the left side of the center of the first sub-electrode portion 3131a. Figure 4 As shown, all the protrusions 212 corresponding to the first light emitting device 31 a are evenly arranged on the left and right sides of the center of the first sub-electrode portion 3131 a (the second electrode 313 ).

[0242] Optionally, in the same first light-emitting device 31a, the sizes of each sub-light-emitting portion 3121 along the second direction Y are equal, the sizes of each first sub-electrode portion 3131a along the second direction Y are equal; the sizes of each protrusion 212 corresponding to the first light-emitting device 31a along the second direction Y are equal.

[0243] Optionally, in the same first light-emitting device 31a, the sizes of two adjacent sub-light-emitting portions 3121 along the second direction Y are unequal, and the sizes of the first sub-electrode portions 3131a corresponding to the two adjacent sub-light-emitting portions 3121 along the second direction Y are unequal.

[0244] For example, in the first light emitting device 31a, the length of the sub-light emitting portion 3121 located in the first row H1 is greater than the length of the sub-light emitting portion 3121 located in the second row H2, and the length of the sub-light emitting portion 3121 located in the third row H3 is less than the length of the sub-light emitting portion 3121 located in the fourth row H4. Fig. 9 As shown, the length of the first sub-electrode portion 3131a in the first row H1 is greater than the length of the first sub-electrode portion 3131a in the second row H2. The length of the first sub-electrode portion 3131a in the third row H3 is less than the length of the first sub-electrode portion 3131a in the fourth row H4.

[0245] Optionally, in two adjacent sub-light emitting portions 3121 of the same first light emitting device 31a, the size of the protrusion 212 corresponding to one sub-light emitting portion 3121 along the second direction Y is not equal to the size of the protrusion 212 corresponding to the other sub-light emitting portion 3121 along the second direction Y. Fig. 9 As shown, in the first light-emitting device 31a, the length of the protrusion 212 located in the first row H1 is greater than the length of the protrusion 212 located in the second row H2, and the length of the protrusion 212 located in the third row H3 is less than the length of the protrusion 212 located in the fourth row H4. The above arrangement can match the length of the protrusion 212 with the length of the first sub-electrode portion 3131a, which is beneficial to maximally reduce the overlap resistance and improve the display effect.

[0246] In one embodiment, all the protrusions 212 corresponding to the first light emitting device 31a are located on the same side of the light emitting portion 312 of the first light emitting device 31a along the first direction X. Figure 1 As shown, all the protrusions 212 corresponding to the first light emitting device 31 a are located on the same side of the center of the first sub-electrode portion 3131 a of the first light emitting device 31 a.

[0247] Alternatively, all protrusions 212 corresponding to the first light emitting device 31a are located on both sides of the light emitting portion 312 of the first light emitting device 31a along the first direction X; and each sub-light emitting portion 3121 of the first light emitting device 31a is provided with a protrusion 212 on both sides along the first direction X. Figure 4 As shown, in the first light emitting device 31 a , protrusions 212 are provided on both left and right sides of the center of each first sub-electrode portion 3131 a .

[0248] In one embodiment, all the protrusions 212 corresponding to the first light emitting device 31a are located on both sides of the light emitting portion 312 of the first light emitting device 31a along the first direction X; in two adjacent sub-light emitting portions 3121 of the first light emitting device 31a, the two protrusions 212 corresponding to the two sub-light emitting portions 3121 are respectively located on both sides of the light emitting portion 312 of the first light emitting device 31a along the first direction X. Fig.10 and Fig.11 As shown, in the same first light-emitting device 31a, the first light-emitting device 31a corresponds to two protrusions 212, the protrusion 212 of the first row H1 is located on the left side of the center of the first sub-electrode portion 3131a, and the protrusion 212 of the second row H2 is located on the right side of the center of the first sub-electrode portion 3131a.

[0249] Optionally, the plurality of first light emitting devices 31 a are arranged in columns along the second direction Y, and in rows along the first direction X.

[0250] In two first light emitting devices 31a adjacent to each other along the second direction Y, a sub-light emitting portion 3121 of one first light emitting device 31a is adjacent to a sub-light emitting portion 3121 of another first light emitting device 31a, and two protrusions 212 corresponding to the two adjacent sub-light emitting portions 3121 are respectively located on both sides of the two first light emitting devices 31a along the first direction X. Fig.10 As shown, the first sub-electrode portion 3131a of the second row H2 is adjacent to the first sub-electrode portion 3131a of the third row H3, and the two belong to different light-emitting devices 31 respectively. The protrusion 212 of the second row H2 is located on the right side of the center of the first sub-electrode portion 3131a, and the protrusion 212 of the third row H3 is located on the left side of the center of the first sub-electrode portion 3131a.

[0251] In this way, the overlapping manners of all the first light-emitting devices 31 a can be made consistent, which is beneficial for designers to perform layout design and is beneficial for reducing production costs.

[0252] Alternatively, in two first light emitting devices 31a adjacent to each other along the second direction Y, a sub-light emitting portion 3121 of one first light emitting device 31a is adjacent to a sub-light emitting portion 3121 of another first light emitting device 31a, and two protrusions 212 corresponding to the two adjacent sub-light emitting portions 3121 are located on the same side of the two first light emitting devices 31a along the first direction X. Fig.11 As shown, the first sub-electrode portion 3131a of the second row H2 is adjacent to the first sub-electrode portion 3131a of the third row H3, and the two belong to different light-emitting devices 31 respectively. The protrusion 212 of the second row H2 is located on the right side of the center of the first sub-electrode portion 3131a, and the protrusion 212 of the third row H3 is located on the right side of the center of the first sub-electrode portion 3131a.

[0253] This helps to avoid the regular mura phenomenon caused by uneven overlapping of fixed rules, thereby improving the display effect.

[0254] In one embodiment, the wavelength of light emitted by the second light emitting device 31b is between 505nm and 545nm; the light emitting portion 312 of the second light emitting device 31b includes a plurality of sub-light emitting portions 3121, the second isolation opening 2b-2 includes a plurality of second sub-isolation openings 2b1-2, and the second electrode 313 of the second light emitting device 31b includes a plurality of second sub-electrode portions 3131b corresponding to the plurality of second sub-isolation openings 2b1-2. The orthographic projection of the second sub-electrode portion 3131b corresponding to the second sub-isolation openings 2b1-2 on the array substrate 1 overlaps with the orthographic projection of the protrusion 212 corresponding to the second sub-isolation openings 2b1-2 on the array substrate 1.

[0255] Optionally, a plurality of sub-light emitting portions 3121 of the same second light emitting device 31b are arranged at intervals along the second direction Y; all protrusions 212 corresponding to the second light emitting device 31b are located on at least one side of the light emitting portion 312 of the second light emitting device 31b along the first direction X. Figure 1 As shown, all the protrusions 212 corresponding to the second light emitting device 31b are located on the left side of the center of the second sub-electrode portion 3131b. Figure 4 As shown, all the protrusions 212 corresponding to the second light emitting device 31 b are evenly arranged on the left and right sides of the center of the second sub-electrode portion 3131 b (the second electrode 313 ).

[0256] Optionally, the number of sub-electrode portions 3121 in the second light-emitting device 31b is equal to or unequal to the number of sub-electrode portions 3121 in the first light-emitting device 31a. In other words, the number of second sub-electrode portions 3131b in the second light-emitting device 31b is equal to or unequal to the number of first sub-electrode portions 3131a in the first light-emitting device 31a. Figure 1 As shown, the number of the second sub-electrode portions 3131b in the second light-emitting device 31b is equal to the number of the first sub-electrode portions 3131a in the first light-emitting device 31a. Figure 7 As shown, the number of the second sub-electrode portions 3131b in the second light-emitting device 31b is three, and the number of the first sub-electrode portions 3131a in the first light-emitting device 31a is two.

[0257] Optionally, in the same second light-emitting device 31b, the sizes of the sub-light-emitting portions 3121 along the second direction Y are equal, the sizes of the second sub-electrode portions 3131b along the second direction Y are equal; the sizes of the protrusions 212 corresponding to the second light-emitting device 31b along the second direction Y are equal;

[0258] Optionally, in the same second light-emitting device 31b, the sizes of two adjacent sub-light-emitting portions 3121 along the second direction Y are unequal, and the sizes of the second sub-electrode portions 3131b corresponding to the two adjacent sub-light-emitting portions 3121 along the second direction Y are unequal.

[0259] For example, in the second light emitting device 31b, the length of the sub-light emitting portion 3121 located in the first row H1 is greater than the length of the sub-light emitting portion 3121 located in the second row H2, and the length of the sub-light emitting portion 3121 located in the third row H3 is less than the length of the sub-light emitting portion 3121 located in the fourth row H4. Fig. 9 As shown, the length of the second sub-electrode portion 3131b in the first row H1 is greater than the length of the second sub-electrode portion 3131b in the second row H2. The length of the second sub-electrode portion 3131b in the third row H3 is less than the length of the second sub-electrode portion 3131b in the fourth row H4.

[0260] Optionally, in two adjacent sub-light emitting portions 3121 of the same second light emitting device 31b, the size of the protrusion 212 corresponding to one sub-light emitting portion 3121 along the second direction Y is not equal to the size of the protrusion 212 corresponding to the other sub-light emitting portion 3121 along the second direction Y. Fig. 9 As shown, in the second light emitting device 31b, the length of the protrusion 212 located in the first row H1 is greater than the length of the protrusion 212 located in the second row H2, and the length of the protrusion 212 located in the third row H3 is less than the length of the protrusion 212 located in the fourth row H4. The above arrangement can match the length of the protrusion 212 with the length of the second sub-electrode portion 3131b, which is beneficial to maximally reduce the overlap resistance and improve the display effect.

[0261] In one embodiment, all the protrusions 212 corresponding to the second light emitting device 31b are located on the same side of the light emitting portion 312 of the second light emitting device 31b along the first direction X. Figure 1 As shown, all the protrusions 212 corresponding to the second light emitting device 31 b are located on the same side of the center of the second sub-electrode portion 3131 b of the second light emitting device 31 b.

[0262] Alternatively, all protrusions 212 corresponding to the second light emitting device 31b are located on both sides of the light emitting portion 312 of the second light emitting device 31b along the first direction X; and each sub-light emitting portion 3121 of the second light emitting device 31b is provided with a protrusion 212 on both sides along the first direction X. Figure 4 As shown, in the second light emitting device 31 b , protrusions 212 are provided on both left and right sides of the center of each second sub-electrode portion 3131 b .

[0263] In one embodiment, all the protrusions 212 corresponding to the second light emitting device 31b are located on both sides of the light emitting portion 312 of the second light emitting device 31b along the first direction X; in two adjacent sub-light emitting portions 3121 of the second light emitting device 31b, the two protrusions 212 corresponding to the two sub-light emitting portions 3121 are respectively located on both sides of the light emitting portion 312 of the second light emitting device 31b along the first direction X. Fig.10 and Fig.11 As shown, in the same second light-emitting device 31b, the second light-emitting device 31b corresponds to two protrusions 212, the protrusion 212 of the first row H1 is located on the left side of the center of the second sub-electrode portion 3131b, and the protrusion 212 of the second row H2 is located on the right side of the center of the second sub-electrode portion 3131b.

[0264] Optionally, the plurality of second light emitting devices 31 b are arranged in columns along the second direction Y, and are arranged in rows along the first direction X.

[0265] In two second light emitting devices 31b adjacent to each other along the second direction Y, a sub-light emitting portion 3121 of one second light emitting device 31b is adjacent to a sub-light emitting portion 3121 of another second light emitting device 31b, and two protrusions 212 corresponding to the two adjacent sub-light emitting portions 3121 are respectively located on both sides of the two second light emitting devices 31b along the first direction X. Fig.10 As shown, the second sub-electrode portion 3131b of the second row H2 is adjacent to the second sub-electrode portion 3131b of the third row H3, and the two belong to different light-emitting devices 31 respectively. The protrusion 212 of the second row H2 is located on the right side of the center of the second sub-electrode portion 3131b, and the protrusion 212 of the third row H3 is located on the left side of the center of the second sub-electrode portion 3131b.

[0266] In this way, the overlapping and misaligned modes of all the second light emitting devices 31 b can be made consistent, which is beneficial for designers to perform layout design and is beneficial for reducing production costs.

[0267] Alternatively, in two second light emitting devices 31b adjacent to each other along the second direction Y, a sub-light emitting portion 3121 of one second light emitting device 31b is adjacent to a sub-light emitting portion 3121 of another second light emitting device 31b, and two protrusions 212 corresponding to the two adjacent sub-light emitting portions 3121 are located on the same side of the two second light emitting devices 31b along the first direction X. Fig.11 As shown, the second sub-electrode portion 3131b of the second row H2 is adjacent to the second sub-electrode portion 3131b of the third row H3, and the two belong to different light-emitting devices 31 respectively. The protrusion 212 of the second row H2 is located on the right side of the center of the second sub-electrode portion 3131b, and the protrusion 212 of the third row H3 is located on the right side of the center of the second sub-electrode portion 3131b.

[0268] This helps to avoid the regular mura phenomenon caused by uneven overlapping of fixed rules, thereby improving the display effect.

[0269] In one embodiment, the wavelength of light emitted by the third light emitting device 31c is between 440nm and 480nm; the light emitting portion 312 of the third light emitting device 31c includes a plurality of sub-light emitting portions 3121, the third isolation opening 2b-3 includes a plurality of third sub-isolation openings 2b1-3, and the second electrode 313 of the third light emitting device 31c includes a plurality of third sub-electrode portions 3131c corresponding to the plurality of third sub-isolation openings 2b1-3. The orthographic projection of the third sub-electrode portion 3131c corresponding to the third sub-isolation openings 2b1-3 on the array substrate 1 overlaps with the orthographic projection of the protrusion 212 corresponding to the third sub-isolation openings 2b1-3 on the array substrate 1.

[0270] Optionally, a plurality of sub-light emitting portions 3121 of the same third light emitting device 31c are arranged at intervals along the second direction Y; all protrusions 212 corresponding to the third light emitting device 31c are located on at least one side of the light emitting portion 312 of the third light emitting device 31c along the first direction X. Figure 1 As shown, all the protrusions 212 corresponding to the third light emitting device 31c are located on the left side of the center of the third sub-electrode portion 3131c. Figure 4 As shown, all the protrusions 212 corresponding to the third light emitting device 31 c are evenly arranged on the left and right sides of the center of the third sub-electrode portion 3131 c (the second electrode 313 ).

[0271] Optionally, the number of sub-electrode portions 3121 in the third light-emitting device 31c is equal to or unequal to the number of sub-electrode portions 3121 in the second light-emitting device 31b. In other words, the number of second sub-electrode portions 3131b in the second light-emitting device 31b is equal to or unequal to the number of third sub-electrode portions 3131c in the third light-emitting device 31c. Figure 1 As shown, the number of the second sub-electrode portions 3131b in the second light-emitting device 31b is equal to the number of the third sub-electrode portions 3131c in the third light-emitting device 31c. Figure 7 As shown, the number of the second sub-electrode portions 3131b in the second light-emitting device 31b is three, and the number of the third sub-electrode portions 3131c in the third light-emitting device 31c is two.

[0272] Optionally, in the same third light-emitting device 31c, the sizes of each sub-light-emitting portion 3121 along the second direction Y are equal, the sizes of each third sub-electrode portion 3131c along the second direction Y are equal; the sizes of each protrusion 212 corresponding to the third light-emitting device 31c along the second direction Y are equal.

[0273] Optionally, in the same third light-emitting device 31c, the sizes of two adjacent sub-light-emitting portions 3121 along the second direction Y are unequal, and the sizes of the third sub-electrode portions 3131c corresponding to the two adjacent sub-light-emitting portions 3121 along the second direction Y are unequal.

[0274] For example, in the third light emitting device 31c, the length of the sub-light emitting portion 3121 located in the first row H1 is greater than the length of the sub-light emitting portion 3121 located in the second row H2, and the length of the sub-light emitting portion 3121 located in the third row H3 is less than the length of the sub-light emitting portion 3121 located in the fourth row H4. Fig. 9 As shown, the length of the third sub-electrode portion 3131c in the first row H1 is greater than the length of the third sub-electrode portion 3131c in the second row H2. The length of the third sub-electrode portion 3131c in the third row H3 is less than the length of the third sub-electrode portion 3131c in the fourth row H4.

[0275] Optionally, in two adjacent sub-light emitting portions 3121 of the same third light emitting device 31c, the size of the protrusion 212 corresponding to one sub-light emitting portion 3121 along the second direction Y is not equal to the size of the protrusion 212 corresponding to the other sub-light emitting portion 3121 along the second direction Y. Fig. 9 As shown, in the third light-emitting device 31c, the length of the protrusion 212 located in the first row H1 is greater than the length of the protrusion 212 located in the second row H2, and the length of the protrusion 212 located in the third row H3 is less than the length of the protrusion 212 located in the fourth row H4. The above arrangement can match the length of the protrusion 212 with the length of the third sub-electrode portion 3131c, which is beneficial to maximally reduce the overlap resistance and improve the display effect.

[0276] In one embodiment, all the protrusions 212 corresponding to the third light emitting device 31c are located on the same side of the light emitting portion 312 of the third light emitting device 31c along the first direction X. Figure 1 As shown, all the protrusions 212 corresponding to the third light emitting device 31c are located on the same side of the center of the third sub-electrode portion 3131c of the third light emitting device 31c.

[0277] Alternatively, all protrusions 212 corresponding to the third light emitting device 31c are located on both sides of the light emitting portion 312 of the third light emitting device 31c along the first direction X; and each sub-light emitting portion 3121 of the third light emitting device 31c is provided with a protrusion 212 on both sides along the first direction X. Figure 4 As shown, in the third light emitting device 31c, protrusions 212 are provided on both left and right sides of the center of each third sub-electrode portion 3131c.

[0278] In one embodiment, all protrusions 212 corresponding to the third light emitting device 31c are located on both sides of the light emitting portion 312 of the third light emitting device 31c along the first direction X; in two adjacent sub-light emitting portions 3121 of the third light emitting device 31c, the two protrusions 212 corresponding to the two sub-light emitting portions 3121 are respectively located on both sides of the light emitting portion 312 of the third light emitting device 31c along the first direction X. Fig.10 and Fig.11 As shown, in the same third light-emitting device 31c, the third light-emitting device 31c corresponds to two protrusions 212, the protrusion 212 of the first row H1 is located on the left side of the center of the third sub-electrode portion 3131c, and the protrusion 212 of the second row H2 is located on the right side of the center of the third sub-electrode portion 3131c.

[0279] Optionally, the plurality of third light emitting devices 31c are arranged in columns along the second direction Y and in rows along the first direction X;

[0280] In two third light emitting devices 31c adjacent to each other along the second direction Y, a sub-light emitting portion 3121 of one third light emitting device 31c is adjacent to a sub-light emitting portion 3121 of another third light emitting device 31c, and two protrusions 212 corresponding to the two adjacent sub-light emitting portions 3121 are respectively located on both sides of the two third light emitting devices 31c along the first direction X. Fig.10 As shown, the third sub-electrode portion 3131c of the second row H2 is adjacent to the third sub-electrode portion 3131c of the third row H3, and the two belong to different light-emitting devices 31 respectively. The protrusion 212 of the second row H2 is located on the right side of the center of the third sub-electrode portion 3131c, and the protrusion 212 of the third row H3 is located on the left side of the center of the third sub-electrode portion 3131c.

[0281] In this way, the overlapping modes of all the third light-emitting devices 31c can be made consistent, which is beneficial for designers to carry out layout design and is beneficial for reducing production costs.

[0282] Alternatively, in two third light emitting devices 31c adjacent to each other along the second direction Y, a sub-light emitting portion 3121 of one third light emitting device 31c is adjacent to a sub-light emitting portion 3121 of another third light emitting device 31c, and two protrusions 212 corresponding to the two adjacent sub-light emitting portions 3121 are located on the same side of the two third light emitting devices 31c along the first direction X. Fig.11 As shown, the third sub-electrode portion 3131c of the second row H2 is adjacent to the third sub-electrode portion 3131c of the third row H3, and the two belong to different light-emitting devices 31 respectively. The protrusion 212 of the second row H2 is located on the right side of the center of the third sub-electrode portion 3131c, and the protrusion 212 of the third row H3 is located on the right side of the center of the third sub-electrode portion 3131c.

[0283] This helps to avoid the regular mura phenomenon caused by uneven overlapping of fixed rules, thereby improving the display effect.

[0284] In one embodiment, a display panel 100 includes an array substrate 1, a pixel defining layer 4, an isolation layer 2, and a device layer 3. The pixel defining layer 4 is located on one side of the array substrate 1 and encloses a plurality of pixel openings 4a. The isolation layer 2 is located on the side of the pixel defining layer 4 away from the array substrate 1 and includes an isolation structure 2a and a plurality of isolation openings 2b enclosed by the isolation structure 2a; the plurality of isolation openings 2b are connected to the plurality of pixel openings 4a in a one-to-one correspondence; the isolation structure 2a includes a first conductive layer 21, a second conductive layer 22, and a barrier layer 23 stacked in a direction away from the array substrate 1; the orthographic projection outer contour of the barrier layer 23 on the array substrate 1 is located at the periphery of the orthographic projection outer contour of the second conductive layer 22 on the array substrate 1. The device layer 3 is located on one side of the array substrate 1, and the device layer 3 includes a plurality of light-emitting devices 31 arranged in a one-to-one correspondence with the plurality of isolation openings 2b; at least a portion of the light-emitting device 31 is arranged in the corresponding isolation opening 2b; the light-emitting device 31 includes a first electrode 311, a light-emitting portion 312, and a second electrode 313 stacked.

[0285] The light-emitting portion 312 of at least one light-emitting device 31 includes a plurality of sub-light-emitting portions 3121, and the isolation opening 2b corresponding to the at least one light-emitting device 31 includes a plurality of sub-isolation openings 2b1 corresponding one-to-one to the plurality of sub-light-emitting portions 3121, and an isolation structure 2a is provided between adjacent sub-isolation openings 2b1; the orthographic projection of the first electrode 311 of at least one light-emitting device 31 on the array substrate 1 covers the orthographic projection of the plurality of sub-light-emitting portions 3121 on the array substrate 1 and the orthographic projection of the isolation structure 2a between adjacent sub-isolation openings 2b1 on the array substrate 1; the pixel opening 4a corresponding to the at least one light-emitting device 31 includes a plurality of sub-pixel openings 4a1 corresponding one-to-one to the plurality of sub-light-emitting portions 3121.

[0286] At least one protrusion 212 is convexly provided on a part of the wall surface of the first conductive layer 21 close to the sub-isolation opening 2b1. In other words, the first conductive layer 21 includes a protrusion 212 and a non-protrusion 211 facing the sub-isolation opening 2b1, and the protrusion 212 and the non-protrusion 211 are arranged in sequence along the circumferential direction of the sub-isolation opening 2b1; the distance between the protrusion 212 and the sub-pixel opening 4a14a is smaller than the distance between the remaining wall surface of the first conductive layer 21 close to the sub-isolation opening 2b12b and the sub-pixel opening 4a14a. The second electrode 313 of at least one light-emitting device 31 is electrically connected to the protrusion 212. Here, it can also be considered that: the first conductive layer 21 includes the non-protrusion 211 and the protrusion 212, the non-protrusion 211 and the protrusion 212 enclose the first opening 21a, and the first opening 21a constitutes a part of the sub-isolation opening 2b1.

[0287] The display panel 100 provided in the embodiment of the present application performs patterning on the first conductive layer 21, so that the protrusion 212 and the non-protrusion 211 are arranged in a circumferential direction around the sub-isolation opening 2b1, and further makes the distance between the protrusion 212 and the sub-pixel opening 4a1 smaller than the distance between the non-protrusion 211 and the sub-pixel opening 4a1, which is equivalent to making the protrusion 212 protrude from the non-protrusion 211. In this way, the isolation structure 2a is equivalent to the auxiliary electrode, which is equivalent to protruding the protrusion 212 on the wall surface of the isolation opening 2b, which not only reduces the connection difficulty between the second electrode 313 and the auxiliary electrode, improves the electrical connection reliability, but also reduces the electrical connection resistance between the two, thereby improving the display effect.

[0288] It is understandable that the display panel 100 may further include a packaging portion 5 , and the packaging portion 5 is disposed on a side of the light emitting device 31 away from the array substrate 1 .

[0289] Based on the same inventive concept, an embodiment of the present application provides another display device, including the display panel in any of the above embodiments.

[0290] The display device 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 television 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.

[0291] 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.

[0292] 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.

[0293] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: An array substrate; An isolation structure, located on one side of the array substrate, the isolation structure comprising a first conductive layer; The first conductive layer encloses and forms a plurality of first openings; At least one protrusion is convexly provided on a part of the wall surface of each of the first openings; A device layer is located on one side of the array substrate; the device layer includes a plurality of light-emitting structures, the isolation structure is located between two adjacent light-emitting structures, and the plurality of light-emitting structures are arranged in one-to-one correspondence with the plurality of first openings; at least part of the orthographic projection of the light-emitting structure on the array substrate is located within the orthographic projection of the wall surface of the first opening on the array substrate; the light-emitting structure includes a sub-light-emitting portion and a sub-electrode portion that are stacked; The sub-electrode portion is connected to the protruding portion, and an orthographic projection of the sub-electrode portion on the array substrate overlaps with at least a portion of an orthographic projection of the protruding portion on the array substrate.

2. The display panel according to claim 1, characterized in that: The plurality of first openings are arranged in a plurality of rows along a first direction and in a plurality of columns along a second direction, and the first direction and the second direction intersect; Optionally, the first direction is perpendicular to the second direction; Optionally, a protrusion is provided on a wall surface of the first opening on one side along the first direction or the second direction; Optionally, two protrusions are convexly provided on the wall surface of the first opening, and the two protrusions are arranged opposite to each other along the first direction or the second direction.

3. The display panel according to claim 1, characterized in that: The orthographic projection of the sub-light-emitting portion on the array substrate overlaps with at least a portion of the orthographic projection of the protrusion on the array substrate, or the orthographic projection of the sub-light-emitting portion on the array substrate is outside the orthographic projection of the protrusion on the array substrate.

4. The display panel according to claim 1, characterized in that: The device layer further includes a plurality of first electrodes, each of which is disposed corresponding to at least two of the light emitting structures, and the first electrode is disposed between the corresponding light emitting structure and the array substrate; The orthographic projection of the first electrode on the array substrate covers the orthographic projection of the corresponding light-emitting structure on the array substrate, and the orthographic projection of the first conductive layer between the corresponding light-emitting structures on the array substrate; Optionally, in at least two of the light-emitting structures corresponding to the same first electrode, the sizes of the light-emitting structures along the second direction are different; in at least two of the light-emitting structures corresponding to the same first electrode, the sizes of the protrusions connected to the light-emitting structures along the second direction are different; Optionally, in at least two of the light-emitting structures corresponding to the same first electrode, the sizes of the light-emitting structures along the second direction are the same; in at least two of the light-emitting structures corresponding to the same first electrode, the sizes of the protrusions connected to the light-emitting structures along the second direction are the same.

5. The display panel according to claim 2, characterized in that: The device layer further includes a plurality of first electrodes, each of which is disposed corresponding to at least two of the light-emitting structures in the same column, and the first electrode is disposed between the corresponding light-emitting structure and the array substrate; The orthographic projection of the first electrode on the array substrate covers the orthographic projection of the corresponding light-emitting structure on the array substrate, and the orthographic projection of the first conductive layer between the corresponding light-emitting structures on the array substrate; Optionally, the plurality of columns include a plurality of first columns, a plurality of second columns, and a plurality of third columns, and the first columns, the second columns, and the third columns are alternately arranged in sequence along the first direction; among the first columns, the second columns, and the third columns, at least two columns have the same number of the first openings; Optionally, the number of the first openings in the first column, the number of the first openings in the second column, and the number of the first openings in the third column are all the same; Optionally, the number of the first openings in the first column, the number of the first openings in the second column, and the number of the first openings in the third column are different; Optionally, in the first column, two or three of the light emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; Optionally, in the second column, two or three of the light emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; Optionally, in the third column, two or three light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; Optionally, in the first column, the two light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the second column, the two light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the third column, the two light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; Optionally, in the first column, the three light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the second column, the three light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the third column, the three light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; Optionally, in the first column, the two light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the second column, the three light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; in the third column, the two light-emitting structures arranged adjacent to each other along the second direction are arranged corresponding to the same first electrode; Optionally, in at least two of the light-emitting structures corresponding to the same first electrode, the thickness of the sub-electrode portion of one of the light-emitting structures is not equal to the thickness of the sub-electrode portion of another light-emitting structure; or, in at least two of the light-emitting structures corresponding to the same first electrode, the thickness of the sub-electrode portion of each of the light-emitting structures is equal; Optionally, the light emitting structures corresponding to the first openings in the same column have the same light emitting color; Optionally, the light emitting colors of the two columns of light emitting structures corresponding to any two adjacent columns of the first openings are different.

6. The display panel according to claim 2, characterized in that: The plurality of rows include a plurality of first rows and a plurality of second rows, and the first rows and the second rows are alternately arranged along the second direction; In the first row, the protrusions in each of the first openings are located on a side wall of the first opening along the first direction; In the second row, the protrusions in each of the first openings are located on the other side wall surface of the first opening along the first direction; Optionally, the first row and the second row are arranged alternately in sequence along the second direction; Optionally, the plurality of rows further include a plurality of third rows and a plurality of fourth rows, and the first row, the second row, the third row and the fourth row are alternately arranged in sequence along the second direction; In the fourth row, the protrusions in each of the first openings are located on a side wall of the first opening along the first direction; In the third row, the protrusions in each of the first openings are located on the other side wall surface of the first opening along the first direction; Optionally, in the same row of the first openings, three adjacent first openings respectively correspond to the light-emitting structures with different luminous colors.

7. The display panel according to claim 1, characterized in that: The isolation structure further includes a second conductive layer and a barrier layer stacked on the first conductive layer, wherein the outer contour of the orthographic projection of the barrier layer on the array substrate is located outside the outer contour of the orthographic projection of the second conductive layer on the array substrate, and the orthographic projection of the first conductive layer on the array substrate is located within the range of the orthographic projection of the second conductive layer on the array substrate; Optionally, the orthographic projection of the protrusion on the array substrate is located within the orthographic projection range of the barrier layer on the array substrate; Optionally, the display panel also includes a pixel defining layer, which is located between the array substrate and the first conductive layer and encloses a plurality of sub-pixel openings; the plurality of sub-pixel openings are connected to the plurality of first openings one by one; and the distance between the protrusion and the sub-pixel opening is smaller than the distance between the remaining wall surface of the first conductive layer close to the sub-isolation opening and the sub-pixel opening.

8. A display panel, characterized in that: include: An array substrate; An isolation layer, located on one side of the array substrate, and comprising an isolation structure and a plurality of isolation openings formed by the isolation structure; The isolation structure comprises a first conductive layer, and the orthographic projection of the first conductive layer on the array substrate is a grid shape; a device layer, located at one side of the array substrate, the device layer comprising a plurality of light-emitting devices arranged in one-to-one correspondence with the plurality of isolation openings; at least a portion of the light-emitting devices is arranged in the corresponding isolation openings; the light-emitting devices comprise a first electrode, a light-emitting portion, and a second electrode which are stacked; The light-emitting portion of at least one of the light-emitting devices includes a plurality of sub-light-emitting portions, and the isolation opening corresponding to the at least one light-emitting device includes a plurality of sub-isolation openings corresponding one-to-one to the plurality of sub-light-emitting portions, and an isolation structure is provided between adjacent sub-isolation openings; the orthographic projection of the first electrode of the at least one light-emitting device on the array substrate covers the orthographic projection of the plurality of sub-light-emitting portions on the array substrate and the orthographic projection of the isolation structure between adjacent sub-isolation openings on the array substrate; Wherein, at least one protrusion is convexly provided on a part of the wall surface of the first conductive layer close to the sub-isolation opening; and the second electrode of the at least one light-emitting device is electrically connected to the protrusion.

9. The display panel according to claim 8, characterized in that: The orthographic projection of the second electrode of the at least one light-emitting device on the array substrate overlaps with the orthographic projection of the protrusion on the array substrate; Optionally, the second electrode of at least one of the light-emitting devices includes a plurality of sub-electrode portions corresponding one-to-one to the plurality of sub-isolation openings, and the orthographic projection of each of the sub-electrode portions on the array substrate overlaps with the orthographic projection of the protrusion in the corresponding sub-isolation opening on the array substrate.

10. The display panel according to claim 8, characterized in that: The orthographic projection of the light-emitting portion of the light-emitting device on the array substrate is outside the orthographic projection range of the protruding portion on the array substrate; Optionally, an orthographic projection of the light-emitting portion of the light-emitting device on the array substrate is outside a range of an orthographic projection of the first conductive layer on the array substrate.

11. The display panel according to claim 8, characterized in that: The isolation structure further includes a second conductive layer and a barrier layer stacked on the first conductive layer, wherein the outer contour of the orthographic projection of the barrier layer on the array substrate is located outside the outer contour of the orthographic projection of the second conductive layer on the array substrate, and the orthographic projection of the first conductive layer on the array substrate is located within the range of the orthographic projection of the second conductive layer on the array substrate; Optionally, the orthographic projection of the protrusion on the array substrate is located within the orthographic projection range of the barrier layer on the array substrate; Optionally, the display panel further includes a pixel defining layer, wherein the pixel defining layer is located between the array substrate and the isolation layer and encloses a plurality of pixel openings; The plurality of pixel openings are connected to the plurality of isolation openings in a one-to-one correspondence; Among them, the pixel opening corresponding to at least one of the light-emitting devices includes a plurality of sub-pixel openings corresponding one by one to the plurality of sub-light-emitting portions; the distance between the protrusion and the sub-pixel opening is smaller than the distance between the remaining wall surface of the first conductive layer close to the sub-isolation opening and the sub-pixel opening.

12. The display panel according to claim 8, characterized in that: The multiple sub-light-emitting parts of the same light-emitting device are arranged at intervals along the second direction; all the protrusions corresponding to the light-emitting device are located on at least one side of the light-emitting part of the light-emitting device along the first direction; The first direction and the second direction intersect and are both perpendicular to the thickness direction of the array substrate; Optionally, the first direction is perpendicular to the second direction; Optionally, the second electrode of the light-emitting device includes a plurality of sub-electrode portions corresponding one-to-one to the plurality of sub-isolation openings, and the sub-electrode portions corresponding to the sub-isolation openings are connected to the protrusions corresponding to the sub-isolation openings.

13. The display panel according to claim 12, characterized in that: All the protrusions corresponding to the same light emitting device are located on the same side of the light emitting portion of the light emitting device along the first direction.

14. The display panel according to claim 12, characterized in that: All the protrusions corresponding to the same light emitting device are located on both sides of the light emitting portion of the light emitting device along the first direction.

15. The display panel according to claim 14, characterized in that: In the same light-emitting device, at least one of the sub-light-emitting portions is provided with the protruding portions on both sides along the first direction; Optionally, in the same light-emitting device, each of the sub-light-emitting portions is provided with the protruding portions on both sides along the first direction.

16. The display panel according to claim 14, characterized in that: In the same light-emitting device, each of the sub-light-emitting portions is provided with the protruding portion on one side along the first direction; Optionally, in two adjacent sub-light-emitting portions of the same light-emitting device, the two protrusions corresponding to the two sub-light-emitting portions are respectively located on both sides of the light-emitting portion of the light-emitting device along the first direction; Optionally, in two adjacent sub-isolation openings of the same isolation opening, the thickness of the sub-electrode portion corresponding to one sub-isolation opening is not equal to the thickness of the sub-electrode portion corresponding to the other sub-isolation opening.

17. The display panel according to claim 13, characterized in that: In the same light-emitting device, the sizes of the sub-light-emitting parts along the second direction are equal, and the sizes of the sub-electrode parts along the second direction are equal; The sizes of the protrusions corresponding to the light emitting devices along the second direction are all equal.

18. The display panel according to claim 13, characterized in that: In the same light-emitting device, the sizes of at least two sub-light-emitting portions along the second direction are unequal, and the sizes of the sub-electrode portions corresponding to the at least two sub-light-emitting portions along the second direction are unequal; Among the at least two sub-light-emitting portions, a size of the protrusion corresponding to one of the sub-light-emitting portions along the second direction is not equal to a size of the protrusion corresponding to another sub-light-emitting portion along the second direction; Optionally, in the same light-emitting device, the sizes of two adjacent sub-light-emitting portions along the second direction are unequal, and the sizes of the sub-electrode portions corresponding to the two adjacent sub-light-emitting portions along the second direction are unequal; Optionally, in two adjacent sub-light-emitting portions of the same light-emitting device, a size of the protrusion corresponding to one sub-light-emitting portion along the second direction is not equal to a size of the protrusion corresponding to the other sub-light-emitting portion along the second direction; Optionally, among two adjacent sub-light-emitting portions of the same light-emitting device, the size of one sub-light-emitting portion along the second direction is twice the size of the other sub-light-emitting portion along the second direction, the size of the sub-electrode portion corresponding to one sub-light-emitting portion along the second direction is twice the size of the sub-electrode portion corresponding to the other sub-light-emitting portion along the second direction, and the size of the protrusion corresponding to one sub-light-emitting portion along the second direction is twice the size of the protrusion corresponding to the other sub-light-emitting portion along the second direction.

19. The display panel according to claim 8, characterized in that: The plurality of light emitting devices include a plurality of first light emitting devices, a plurality of second light emitting devices, and a plurality of third light emitting devices, and the first light emitting devices, the second light emitting devices, and the third light emitting devices emit light of different colors; 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 first light emitting devices and the first isolation openings are arranged correspondingly, the second light emitting devices and the second isolation openings are arranged correspondingly, and the third light emitting devices and the third isolation openings are arranged correspondingly; Among the first light-emitting device, the second light-emitting device and the third light-emitting device, the light-emitting portion of the light-emitting device of at least one color includes a plurality of sub-light-emitting portions; Optionally, among the first light-emitting device, the second light-emitting device and the third light-emitting device, the light-emitting parts of at least two color light-emitting devices include a plurality of sub-light-emitting parts; Optionally, among the first light-emitting device, the second light-emitting device and the third light-emitting device, the light-emitting portion of all the light-emitting devices includes a plurality of sub-light-emitting portions.

20. A display panel, characterized in that: include: An array substrate; A pixel defining layer is located on one side of the array substrate and encloses a plurality of pixel openings; an isolation layer, located on a side of the pixel defining layer away from the array substrate, and comprising an isolation structure and a plurality of isolation openings enclosed by the isolation structure; the plurality of isolation openings are connected to the plurality of pixel openings in a one-to-one correspondence; the isolation structure comprises a first conductive layer, a second conductive layer and a barrier layer stacked in a direction away from the array substrate; an orthographic projection outer contour of the barrier layer on the array substrate is located at the periphery of an orthographic projection outer contour of the second conductive layer on the array substrate; a device layer, located at one side of the array substrate, the device layer comprising a plurality of light-emitting devices arranged in one-to-one correspondence with the plurality of isolation openings; at least a portion of the light-emitting devices is arranged in the corresponding isolation openings; the light-emitting devices comprise a first electrode, a light-emitting portion, and a second electrode which are stacked; The light-emitting portion of at least one of the light-emitting devices includes a plurality of sub-light-emitting portions, and the isolation opening corresponding to the at least one light-emitting device includes a plurality of sub-isolation openings corresponding one-to-one to the plurality of sub-light-emitting portions, and an isolation structure is provided between adjacent sub-isolation openings; the orthographic projection of the first electrode of the at least one light-emitting device on the array substrate covers the orthographic projection of the plurality of sub-light-emitting portions on the array substrate and the orthographic projection of the isolation structure between adjacent sub-isolation openings on the array substrate; The pixel opening corresponding to the at least one light emitting device includes a plurality of sub-pixel openings corresponding one-to-one to the plurality of sub-light emitting portions; At least one protrusion is protruding from a portion of the wall surface of the first conductive layer close to the sub-isolation opening; the distance between the protrusion and the sub-pixel opening is smaller than the distance between the remaining wall surface of the first conductive layer close to the sub-isolation opening and the sub-pixel opening; the second electrode of at least one of the light-emitting devices is electrically connected to the protrusion.

21. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-20.

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