Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a substrate, a pixel, a pixel definition layer, a supporting structure and a spacing structure. The pixel defining layer is arranged on one side of the substrate, the pixels are arranged in the first direction and the second direction, the light-emitting layers of the pixels are arranged in the pixel openings, the supporting structure is located on the side, away from the substrate, of the pixel defining layer, the orthographic projection of the first surface of the interval structure on the substrate covers the orthographic projection of the second surface on the substrate, and the interval structure is in an inverted-T shape. The pixel unit area comprises a first color pixel, a second color pixel, two third color pixels and a supporting structure. In the pixel unit area, the first interval structure at least partially surrounds the first color pixel, the second interval structure at least partially surrounds the second color pixel, and an opening of the first interval structure and an opening of the second interval structure both face the supporting structure. According to the invention, the overall internal resistance of the cathode can be reduced, and the leakage current phenomenon generated between pixels of different colors can be weakened.

Description

Technical Field

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

[0002] In a display panel, the cathode of the light-emitting device is usually used as a common electrode and is set in the entire display area of ​​the display panel. Due to the problem of sub-pixels shining secretly in the display panel, some blocking structures are set. The blocking structures have openings to partially isolate the cathodes of different sub-pixels or the common layer of the light-emitting device to reduce leakage current. However, after the blocking structure is set, the resistance of the cathode will be significantly increased, the power consumption of the display panel will be increased, and the display effect of the display panel will be affected. Summary of the invention

[0003] Embodiments of the present application provide a display panel and a display device, which can reduce the internal resistance of the display panel and reduce leakage current.

[0004] In a first aspect, an embodiment of the present application provides a display panel, comprising: a substrate; a plurality of pixels arranged in a matrix along a first direction and a second direction, the pixels comprising an anode, a light-emitting layer and a cathode; the plurality of pixels comprising a first color pixel, a second color pixel and a third color pixel; a pixel definition layer comprising a plurality of pixel openings, the light-emitting layer being at least partially located in the pixel openings; a plurality of support structures located on a side of the pixel definition layer away from the substrate; a plurality of spacing structures, along a direction perpendicular to the substrate, the spacing structures comprising a first surface away from the substrate and a second surface close to the substrate, the orthographic projection of the first surface on the substrate covering the orthographic projection of the second surface on the substrate; a plurality of pixel unit regions comprising The invention comprises a first color pixel, a second color pixel, two third color pixels, and a supporting structure; along the third direction, the supporting structure is located between the first color pixel and the second color pixel, and along the fourth direction, the supporting structure is located between the two third color pixels; the first direction, the second direction, the third direction, and the fourth direction intersect each other; within the pixel unit area, the spacing structure comprises an auxiliary opening, the spacing structure comprises a first spacing structure and a second spacing structure, the first spacing structure at least partially surrounds the first color pixel, the second spacing structure at least partially surrounds the second color pixel, and the auxiliary opening of the first spacing structure and the auxiliary opening of the second spacing structure both face the supporting structure.

[0005] In a second aspect, an embodiment of the present application provides a display device, comprising the display panel of an embodiment of the first aspect of the present application.

[0006] The display panel and the display device provided by the embodiments of the present application have a pixel definition layer disposed on one side of a substrate. The pixels are arranged along a first direction and a second direction, and the light-emitting layer of the pixel is disposed in a pixel opening. A support structure is located on the side of the pixel definition layer away from the substrate. The orthographic projection of the first surface of the spacer structure on the substrate covers the orthographic projection of the second surface on the substrate, and is in an inverted T shape or an inverted trapezoid. The pixel unit region includes a first-color pixel, a second-color pixel, two third-color pixels, and a support structure. Within the pixel unit region, a first spacer structure at least partially surrounds the first-color pixel, a second spacer structure at least partially surrounds the second-color pixel, and the auxiliary openings of the first spacer structure and the second spacer structure both face the support structure. By providing a spacer structure with an opening, the cathode can be partially separated, so that the internal resistance distribution of the cathode is more uniform, reducing the risk of excessive local internal resistance, and further reducing the overall internal resistance of the cathode. The auxiliary openings face the support structure, weakening the leakage current phenomenon generated between pixels of different colors within the pixel unit region. Description of the Drawings

[0007] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments of the present application. Obviously, the following described drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0008] Figure 1 It is a schematic structural diagram of a display panel according to an embodiment of the present application.

[0009] Figure 2 It is Figure 1 a schematic diagram of a positional relationship between a support structure and pixels in the S region of the display panel according to an embodiment of the present application

[0010] Figure 3 It is Figure 1 a top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0011] Figure 4 It is Figure 3 a cross-sectional view of the display panel according to an embodiment of the present application along the A-A section.

[0012] Figure 5 It is Figure 1 another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0013] Figure 6 It is Figure 1 another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0014] Figure 7 For Figure 1 Another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0015] Figure 8 For Figure 1 Another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0016] Figure 9 For Figure 1 Another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0017] Figure 10 For Figure 1 Another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0018] Figure 11 For Figure 1 Another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0019] Figure 12 For Figure 1 Another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0020] Figure 13 For Figure 1 Another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0021] Figure 14 For Figure 1 Another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0022] Figure 15 For Figure 1 Another cross-sectional view of the display panel according to an embodiment of the present application in the A-A section.

[0023] Figure 16 A structural schematic diagram of a display device according to an embodiment of the present application.

[0024] Reference numerals:

[0025] 1. Substrate;

[0026] 2. Array layer; 21. First electrode layer; 22. Thin film transistor;

[0027] 3. Pixel definition layer; 31. Pixel opening;

[0028] 4. Support structure;

[0029] 5. Spacing structure; 51. First spacing structure; 52. Second spacing structure; 53. Third spacing structure; 54. Fourth spacing structure; 55. Fifth spacing structure; 56. Sixth spacing structure;

[0030] 6. Pixel; 61 Anode, 62. Light-emitting layer; 63. Cathode; 64. First color pixel; 64a. First sub-pixel; 64b. Second sub-pixel; 65. Second color pixel; 65a. Third sub-pixel; 65b. Fourth sub-pixel; 66. Third color pixel; 66a. Fifth sub-pixel; 66b. Sixth sub-pixel;

[0031] 7. Second electrode layer;

[0032] 100. Display device; 200. Display panel;

[0033] D1. First direction; D2. Second direction; D3. Third direction; D4. Fourth direction; P. Pixel unit area; L1. First pixel column; L2. Second pixel column; H1. First pixel row; H2. Second pixel row; S1. First surface; S2. Second surface. Detailed implementation

[0034] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, many specific details are presented in order to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present application by showing examples of the present application.

[0035] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.

[0036] Relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0037] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "above" or "over" another layer or another region, it may mean directly above the other layer or another region, or there may be other layers or regions between it and the other layer or another region. And if the component is flipped, this layer or region will be "below" or "beneath" the other layer or another region.

[0038] In addition, the term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0039] It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0040] The applicant has found that in a display panel, when the cathode of a light-emitting device serves as a common electrode, the cathode needs to be provided as a whole surface. When the light-emitting device corresponding to a certain pixel emits light, since all pixels share the cathode, some of the carriers generated by the lit pixels may be transmitted along the cathode and / or the organic common layer in the light-emitting device to the pixels that are not expected to be lit, resulting in the problem of other pixels being lit secretly. Therefore, a spacer structure is provided to partially separate the cathodes and / or the organic common layers in the light-emitting devices corresponding to different pixels to reduce the generation of leakage current. However, setting the spacer structure will reduce the area of the cathode at the corresponding position and affect the shape of the cathode, increasing the internal resistance of the cathode and thus increasing the power consumption of the display panel.

[0041] In view of the above analysis, the applicant proposes a display panel and a display device. The display panel includes: a substrate, pixels, a pixel definition layer, a support structure, and a spacer structure. The pixel definition layer is disposed on one side of the substrate. A plurality of pixels are arranged along a first direction and a second direction respectively, and the light-emitting layer of the pixel is disposed in a pixel opening. The support structure is located on the side of the pixel definition layer away from the substrate. The orthographic projection of the first surface of the spacer structure on the substrate covers the orthographic projection of the second surface on the substrate, and the area of the orthographic projection of the first surface on the substrate is larger than the area of the orthographic projection of the second surface on the substrate. The spacer structure is in an inverted T shape or an inverted trapezoid. The display panel further includes a pixel unit area, and the pixel unit area includes a first-color pixel, a second-color pixel, two third-color pixels, and a support structure. Within the pixel unit area, a first spacer structure at least partially surrounds the first-color pixel, a second spacer structure at least partially surrounds the second-color pixel, and the auxiliary openings of the first spacer structure and the second spacer structure both face the support structure. By providing a spacer structure with an auxiliary opening, the cathode can be partially separated, making the internal resistance distribution of the cathode more uniform, reducing the risk of excessive local internal resistance, and thus reducing the overall internal resistance of the cathode. The auxiliary opening of the spacer structure faces the support structure, which not only ensures the cathode connection effect between pixels but also weakens the phenomenon that the leakage current between pixels of different colors within the pixel unit area affects the light-emitting effect. It can be understood that the auxiliary opening of the spacer structure 5 faces the support structure 4, which may mean that the auxiliary opening of the spacer structure 5 is adjacent to the support structure 4.

[0042] Figure 1 FIG. is a schematic structural diagram of a display panel according to an embodiment of the present application. Figure 2 is Figure 1 FIG. is a schematic diagram of a positional relationship between a support structure and pixels in an S region of the display panel according to an embodiment of the present application. Figure 3 is Figure 1 FIG. is a top view of the display panel according to an embodiment of the present application in the S region. Figure 4 is Figure 3 FIG. is a cross-sectional view of the display panel according to an embodiment of the present application taken along the A-A section.

[0043] Please refer to Figures 1 to 4, an embodiment of the present application provides a display panel, including: a substrate 1; a plurality of pixels 6 arranged in a matrix along a first direction D1 and a second direction D2, the pixel 6 including an anode 61, a light-emitting layer 62, and a cathode 63; a plurality of pixels 6 including a first-color pixel 64, a second-color pixel 65, and a third-color pixel 66; a pixel definition layer 3, including a plurality of pixel openings 31, and at least a part of the light-emitting layer 62 is located in the pixel openings 31; a plurality of support structures 4, located on a side of the pixel definition layer 3 away from the substrate 1; a plurality of spacer structures 5, in a direction perpendicular to the substrate 1, the spacer structure 5 including a first surface S1 away from the substrate 1 and a second surface S2 close to the substrate 1, and the orthographic projection of the first surface S1 on the substrate 1 covers the orthographic projection of the second surface S2 on the substrate 1; a plurality of pixel unit regions P, including one first-color pixel 64, one second-color pixel 65, two third-color pixels 66, and one support structure 4; along a third direction D3, the support structure 4 is located between the first-color pixel 64 and the second-color pixel 65, and along a fourth direction D4, the support structure 4 is located between the two third-color pixels 66; the first direction D1, the second direction D2, the third direction D3, and the fourth direction D4 intersect pairwise; within the pixel unit region P, the spacer structure 5 includes auxiliary openings, the spacer structure 5 includes a first spacer structure 51 and a second spacer structure 52, the first spacer structure 51 at least partially surrounds the first-color pixel 64, the second spacer structure 52 at least partially surrounds the second-color pixel 65, and the auxiliary openings of the first spacer structure 51 and the auxiliary openings of the second spacer structure 52 both face the support structure 4.

[0044] It can be understood that the display panel of the embodiment of the present application can be an organic light-emitting diode (OLED) display panel.

[0045] The substrate 1 can be formed of polymer materials such as glass, polyimide (PI), polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyaryl compound (PAR), or glass fiber reinforced plastic (FRP). The substrate 1 can be transparent, translucent, or opaque. The substrate 1 in the embodiment of the present application can also be a flexible substrate, formed of a polymer with a relatively thin thickness, such as polyimide.

[0046] Pixel 6 corresponds to the light-emitting device of the display panel. The light-emitting device can be an organic light-emitting diode (OLED), including an anode 61, a light-emitting layer 62, and a cathode 63. The pixel definition layer 3 is disposed on one side of the substrate 1, and the pixel definition layer 3 is provided with a plurality of pixel openings 31. The anode 61 of the exposed part is in the pixel opening 31. The light-emitting layer 62 is at least partially located in the pixel opening 31 and at least partially covers the anode 61, and the cathode 63 covers the light-emitting layer 62. In the embodiments of the present application, the light-emitting device can also be a tandem organic light-emitting diode (Tandem OLED). Exemplarily, it can be regarded as a form in which two organic light-emitting diodes are stacked. There are two organic light-emitting layers between the anode and the cathode. Compared with the ordinary organic light-emitting diode, the tandem organic light-emitting diode has higher brightness. For the convenience of description, in the embodiments of the present application, the light-emitting device is taken as an ordinary organic light-emitting diode as an example for description.

[0047] The support structure 4 can be disposed on the side of the pixel definition layer 3 away from the substrate 1. The preparation of the light-emitting layer 203 can adopt a fine metal mask (FMM). The support structure 4 can be used to support the fine metal mask during the process to prevent the mask from scratching the structure in the display panel. The support structure 4 is in a positive trapezoidal shape, and a plurality of support structures 4 can be obtained by exposing and developing the support structure layer provided on the entire surface during the process.

[0048] The spacer structure 5 can partially separate the cathode 63. It adopts a multi-layer structure and is etched into an inverted T shape or an inverted trapezoid. When manufacturing the display panel, the spacer structure 5 is first fabricated on the pixel definition layer 3, and the cathode 63 is fabricated after the light-emitting layer is fabricated. The spacer structure 5 in the shape of an inverted T or an inverted trapezoid can partially partition the cathode 63, which can reduce the cathode 63 that serves as a leakage current path between pixels, thereby weakening the conduction of leakage current and alleviating the problem of pixel 6 stealing light. The spacer structure 5 includes a first spacer structure 51 and a second spacer structure 52. The first spacer structure 51 at least partially surrounds the first color pixel 64, and the second spacer structure 52 at least partially surrounds the second color pixel 65. The spacer structure 5 is provided with an auxiliary opening to enable the cathodes 63 corresponding to the respective pixels 6 to be electrically connected together, and by setting the auxiliary opening, the total internal resistance of the cathode 63 can be reduced, thereby reducing the power consumption of the display panel in the embodiments of the present application. It can be understood that when manufacturing the display panel of the embodiments of the present application, the spacer structure 5 and the support structure 4 can be fabricated in two processes respectively. After the pixel definition layer 3 is fabricated, the support structure 4 can be fabricated. The process of fabricating the support structure 4 and the process of fabricating the spacer structure 5 can be performed regardless of the order. Exemplarily, after the cathode 63 is fabricated, the spacer structure 5 can be fabricated; the spacer structure 5 and the support structure 4 can also be fabricated synchronously in one process.

[0049] The display panel according to an embodiment of the present application further includes a plurality of pixel unit regions P. Each pixel unit region P includes a first-color pixel 64, a second-color pixel 65, two third-color pixels 66, and a support structure 4. It should be noted that the structures within the plurality of pixel unit regions P may be the same. The pixel unit region P is based on the support structure 4. Within the entire display panel, the plurality of support structures 4 are respectively located within one pixel unit region P. Among all the pixels 6, a part is located within the pixel unit region P, and a part is located outside the pixel 6 region. Exemplarily, the first-color pixel 64 may be a blue pixel, the second-color pixel 65 may be a red pixel, and the third-color pixel 66 may be a green pixel. Within the pixel unit region P, along the third direction D3, the support structure 4 is located between the first-color pixel 64 and the second-color pixel 65. Along the fourth direction D4, the support structure 4 is located between the two third-color pixels 66. That is to say, the pixel unit region P corresponds to a support structure 4 and the pixels 6 adjacent to it along the third direction D3 and the fourth direction D4. Therefore, the pixels 6 not adjacent to the support structure 4 along the third direction D3 and the fourth direction D4 are located outside the pixel unit region P. The openings of the first spacer structure 51 and the second spacer structure 52 both face the support structure 4, making it difficult for the openings of the first spacer structure 51 and the second spacer structure 52 to directly face each other, thereby hindering the conduction of leakage current between the cathodes 63 of the first-color pixel 64 and the second-color pixel 65, and further reducing the leakage current and weakening the problem of pixel 6 stealing light.

[0050] Further, referring to Figures 2 to 4 again, along the first direction D1, the display panel includes first pixel columns L1 and second pixel columns L2 arranged alternately; in the first pixel columns L1, the first-color pixels 64 and the third-color pixels 66 are arranged alternately along the second direction D2; in the second pixel columns L2, the second-color pixels 65 and the third-color pixels 66 are arranged alternately along the second direction D2; the first direction D1 and the second direction D2 intersect; along the second direction D2, the display panel includes first pixel rows H1 and second pixel rows H2 arranged alternately. In the first pixel rows H1, the first-color pixels 64 and the third-color pixels 66 are arranged alternately along the first direction D1. In the second pixel rows H2, the second-color pixels 65 and the third-color pixels 66 are arranged alternately along the first direction D1.

[0051] Multiple pixels 6 are arranged in an array along a first direction D1 and a second direction D2. In the first pixel column L1, the first-color pixels 64 and the third-color pixels 66 are arranged alternately. In the second pixel column L2, the second-color pixels 65 and the third-color pixels 66 are arranged alternately. In the first pixel row H1, the first-color pixels 64 and the third-color pixels 66 are arranged alternately. In the second pixel row H2, the second-color pixels 65 and the third-color pixels 66 are arranged alternately. That is to say, in the embodiments of the present application, the first-color pixels 64, the second-color pixels 65, and the third-color pixels 66 are not located in the same row or the same column at the same time. The numbers of the first-color pixels 64 and the second-color pixels 65 are equal, and the number of the third-color pixels 66 is twice the number of the first-color pixels 64.

[0052] Optionally, continue to refer to Figures 2 to 4 , the first direction D1 and the second direction D2 are perpendicular, the third direction D3 and the fourth direction D4 are perpendicular, the first direction D1 and the third direction D3 intersect, and the included angle is an acute angle. Taking four adjacent pixels 6 arranged in an array as an example, the four pixels 6 are arranged in a rectangle. The first direction D1 and the second direction D2 are the directions corresponding to the sides of the rectangle, and the third direction D3 and the fourth direction D4 are the directions corresponding to the diagonals of the rectangle. Therefore, the multiple pixels 6 arranged in an array along the first direction D1 and the second direction D2 can be regarded as the third-color pixels 66 being arranged in the same row and the same column, that is, arranged in an array along the fourth direction D4 and the third direction D3, and the first-color pixels 64 and the second-color pixels 65 being arranged in the same row and the same column, that is, arranged alternately along the third direction D3 and the fourth direction D4.

[0053] Further, continue to refer to Figures 2 to 4 , the distance from the side of the spacer structure 5 facing away from the substrate 1 to the substrate 1 is h1, and the distance from the side of the support structure 4 facing away from the substrate 1 to the substrate 1 is h2, where h2>h1. That is to say, the height of the support structure 4 is greater than the height of the spacer structure 5. When manufacturing the display panel of the embodiments of the present application, the film layer on the side of the support structure 4 facing away from the substrate 1 can be supported by the support structure 4, thereby reducing the risk of the spacer structure 5 and the cathode 63 being damaged. At the same time, the height of the support structure 4 is set higher and is located between the auxiliary openings of the first spacer structure and the second spacer structure, which can extend the path of the cathode or the organic common layer passing above the support structure 4 and extend the transmission path of the leakage current, reducing the lateral leakage current at the position where there is no isolation structure between the pixels while ensuring the connectivity of the cathode. Optionally, the height of the support structure 4 can be 1.5 to 2 μm, such as 1.9 μm. The spacer structure is set lower, which can reduce the space it occupies in the display area, reduce the lateral leakage between the pixels, and avoid a large loss of the aperture ratio of the display panel.

[0054] Figure 5 For Figure 1Another top-down schematic view of the display panel according to an embodiment of the present application in the S region.

[0055] Further, please refer to Figure 5 , within the pixel unit region P, the spacer structure 5 further includes a second opening.

[0056] Within the pixel unit region P, the first spacer structure 51 has a plurality of openings, one of which corresponds to an auxiliary opening and the other corresponds to a second opening. The position of the second opening of the first spacer structure 51 is not limited. Exemplarily, a plurality of second openings of the first spacer structure 51 may be provided, and the second opening is located at a position corresponding to the first spacer structure 51 between adjacent first color pixels 64 and third color pixels 66. Within the pixel unit region P, the second spacer structure 52 has a plurality of openings, one of which corresponds to an auxiliary opening and the other corresponds to a second opening. The position of the second opening of the second spacer structure 52 is not limited. Exemplarily, one second opening of the second spacer structure 52 may be provided, and the second opening is located on a side of the second spacer structure 52 away from the spacer structure 5.

[0057] Figure 6 For Figure 1 Another top-down schematic view of the display panel according to an embodiment of the present application in the S region.

[0058] Further, please refer to Figure 6 , the first color pixel 64 includes a first sub-pixel 64a and a second sub-pixel 64b. The first sub-pixel 64a is located within the pixel unit region P, and the second sub-pixel 64b is located outside the pixel unit region P; the spacer structure 5 further includes a third spacer structure 53. The third spacer structure 53 partially surrounds the second sub-pixel 64b. The third spacer structure 53 has an opening, and the orientation of the spacer opening is parallel to the third direction D3 or the fourth direction D4.

[0059] Among the plurality of first color pixels 64, a part of the first color pixels 64 are located within the pixel unit region P, that is, the first sub-pixels 64a, and a part of the first color pixels 64 are located outside the pixel unit region P, that is, the second sub-pixels 64b. The first spacer structure 51 partially surrounds the first sub-pixel 64a, and the third spacer structure 53 partially surrounds the second sub-pixel 64b. The third spacer structure 53 has an opening, which can further reduce the internal resistance of the cathode 63. The opening orientation of the third spacer structure 53 is parallel to the third direction D3 or the fourth direction D4. Among the first spacer structure 51, the second spacer structure 52, and the third spacer structure 53, the openings of the three will not directly face each other, thereby reducing the conduction path of the leakage current and weakening the problem of the first color pixel 64 stealing light. Optionally, the opening orientation can be understood as the direction pointing from the center of the pixel corresponding to the spacer where the opening is located to the opening.

[0060] Figure 7 For Figure 1 Another top view schematic diagram of the display panel according to the embodiment of the present application in the S region.

[0061] Further, please refer to Figure 7 , the first color pixel 64 includes a first sub-pixel 64a and a second sub-pixel 64b. The first sub-pixel 64a is located within the pixel unit region P, and the second sub-pixel 64b is located outside the pixel unit region P; the spacer structure 5 further includes a third spacer structure 53. The third spacer structure 53 partially surrounds the second sub-pixel 64b. The third spacer structure 53 has at least two openings, and the opening directions of the openings are parallel to the third direction D3 or the fourth direction D4.

[0062] Among the multiple first color pixels 64, a part of the first color pixels 64 is located within the pixel unit region P, that is, the first sub-pixel 64a, and a part of the first color pixels 64 is located outside the pixel unit region P, that is, the second sub-pixel 64b. The first spacer structure 51 partially surrounds the first sub-pixel 64a, and the third spacer structure 53 partially surrounds the second sub-pixel 64b. The third spacer structure 53 has two openings, which can further reduce the internal resistance of the cathode 63. The opening directions of the openings of the third spacer structure 53 are parallel to the third direction D3 or the fourth direction D4. Among the first spacer structure 51, the second spacer structure 52, and the third spacer structure 53, the openings of the three do not directly face each other, thereby reducing the conduction of leakage current and weakening the problem of the first color pixel 64 stealing light.

[0063] Figure 8 For Figure 1 Another top view schematic diagram of the display panel according to the embodiment of the present application in the S region.

[0064] Further, please refer to Figure 8 , the second color pixel 65 is composed of a third sub-pixel 65a and a fourth sub-pixel 65b. The third sub-pixel 65a is located within the pixel unit region P, and the fourth sub-pixel 65b is located outside the pixel unit region P; the spacer structure 5 further includes a fourth spacer structure 54. The fourth spacer structure 54 partially surrounds the fourth sub-pixel 65b. The fourth spacer structure 54 has one opening, and the opening direction of the opening is parallel to the third direction D3 or the fourth direction D4.

[0065] Among the multiple second-color pixels 65, a part of the second-color pixels 65 is located within the pixel unit region P, that is, the third sub-pixel 65a, and a part of the second-color pixels 65 is located outside the pixel unit region P, that is, the fourth sub-pixel 65b. The second spacer structure 52 partially surrounds the third sub-pixel 65a, and the fourth spacer structure 54 partially surrounds the fourth sub-pixel 65b. The fourth spacer structure 54 has an opening, which can further reduce the internal resistance of the cathode 63. The opening direction of the fourth spacer structure 54 is parallel to the third direction D3 or the fourth direction D4. Among the first spacer structure 51, the second spacer structure 52, and the fourth spacer structure 54, the openings of the three do not directly face each other. The existence of the openings enables the cathodes between different pixels to be connected together, avoiding increasing the panel design difficulty. At the same time, since the openings of the spacer structures do not directly face each other, the transmission path of the leakage current can be reduced and extended, thereby reducing the conduction of the leakage current and weakening the problem of the second-color pixel 65 stealing light.

[0066] Figure 9 For Figure 1 Another top view schematic diagram of the display panel according to the embodiment of the present application in the S region.

[0067] Figure 10 For Figure 1 Another top view schematic diagram of the display panel according to the embodiment of the present application in the S region. Figure 11 For Figure 1 Another top view schematic diagram of the display panel according to the embodiment of the present application in the S region.

[0068] Further, please refer to Figures 9 to 11 , the first-color pixel 64 includes a first sub-pixel 64a and a second sub-pixel 64b. The first sub-pixel 64a is located within the pixel unit region P, and the second sub-pixel 64b is located outside the pixel unit region P; the second-color pixel 65 is composed of a third sub-pixel 65a and a fourth sub-pixel 65b. The third sub-pixel 65a is located within the pixel unit region P, and the fourth sub-pixel 65b is located outside the pixel unit region P; the spacer structure 5 further includes a third spacer structure 53 and a fourth spacer structure 54. The third spacer structure 53 partially surrounds the second sub-pixel 64b, and the fourth spacer structure 54 partially surrounds the fourth sub-pixel 65b. The third spacer structure 53 and the fourth spacer structure 54 both have at least one opening, and the opening directions of the third spacer structure 53 and the fourth spacer structure 54 are not opposite to each other. It is found by the inventor's test that Figure 10 In the setting method, the cathode resistance is about 25 Ω, Figure 11In the setting method, the cathode resistance is about 17 Ω. By adopting the setting method in the present application where the opening directions of different spacer structures are not directly opposite and the openings of different spacer structures in a pixel unit area P all face the support structure 4. At the same time, at the arrangement positions of multiple third color sub-pixels 66, the cathode will not be disconnected or thinned by the barrier structure, which can not only reduce the problem of pixel crosstalk caused by leakage current in the display panel, but also reduce the resistance of the cathode in the display panel provided with multiple barrier structures. After the barrier structure causes the cathode to be discontinuous, the resistance of the cathode will not increase too much, reducing the impact on the display effect of the display panel.

[0069] Among multiple first color pixels 64, a part of the first color pixels 64 are located within the pixel unit area P, that is, the first sub-pixels 64a, and a part of the first color pixels 64 are located outside the pixel unit area P, that is, the second sub-pixels 64b. The first spacer structure 51 partially surrounds the first sub-pixels 64a, and the third spacer structure 53 partially surrounds the second sub-pixels 64b. The third spacer structure 53 has an opening. Among multiple second color pixels 65, a part of the second color pixels 65 are located within the pixel unit area P, that is, the third sub-pixels 65a, and a part of the second color pixels 65 are located outside the pixel unit area P, that is, the fourth sub-pixels 65b. The second spacer structure 52 partially surrounds the third sub-pixels 65a, and the fourth spacer structure 54 partially surrounds the fourth sub-pixels 65b. The fourth spacer structure 54 has at least one opening. The spacer structure 5 can simultaneously include the third spacer structure 53 and the fourth spacer structure 54. At this time, the openings of the third spacer structure 53 and the fourth spacer structure 54 should not be directly opposite, so as to hinder the conduction of leakage current between the cathode 63 of the second sub-pixel 64b corresponding to the third spacer structure 53 and the cathode 63 of the fourth sub-pixel 65b corresponding to the fourth spacer structure 54, and can weaken the problem of crosstalk between the second sub-pixel 64b and the fourth sub-pixel 65b.

[0070] It should be noted that in the embodiments of the present application, preferably, the position of the support structure 4 is not limited, but the same pixel 6 should not be adjacent to multiple support structures 4.

[0071] Figure 12 For Figure 1 Another top view schematic diagram of the display panel according to the embodiment of the present application in the S area.

[0072] Furthermore, please refer to Figure 12, the third color pixel 66 is composed of a fifth sub-pixel 66a and a sixth sub-pixel 66b; the fifth sub-pixel 66a is located within the pixel unit area P, and the sixth sub-pixel 66b is located outside the pixel unit area P; the spacer structure 5 further includes a fifth spacer structure 55, and the fifth spacer structure 55 partially surrounds the fifth sub-pixel 66a. The fifth spacer structure 55 has an opening, and the opening direction of the opening is parallel to the third direction D3 or the fourth direction D4 and faces the support structure 4.

[0073] Among the multiple third color pixels 66, a part of the third color pixels 66, that is, the fifth sub-pixel 66a, is located within the pixel unit area P, and a part of the third color pixels 66, that is, the sixth sub-pixel 66b, is located outside the pixel unit area P. The fifth spacer structure 55 partially surrounds the fifth sub-pixel 66a. The fifth spacer structure 55 is provided with an opening, and the opening of the fifth spacer structure 55 can reduce the total internal resistance of the cathode 63. The opening direction of the opening of the fifth spacer structure 55 is parallel to the third direction D3 or the fourth direction D4 and faces the support structure 4. The support structure 4 can be used to prevent leakage current from conducting between the first sub-pixel 64a, the third sub-pixel 65a, and the fifth sub-pixel 66a, thereby weakening the problem of pixel 6 stealing light, optimizing the occupancy of the support structure, ensuring the connectivity of the cathodes between different color pixels, and at the same time, this way of correspondingly setting the support and partition structure openings in the pixel unit area P also makes the layout design of the display panel spacer structure simpler.

[0074] Further, please refer to Figure 12 , the spacer structure 5 further includes a sixth spacer structure 56. The sixth spacer structure 56 partially surrounds the sixth sub-pixel 66b. The sixth spacer structure 56 has an opening, which can further reduce the internal resistance of the cathode 63. The opening direction of the opening is parallel to the third direction D3 or the fourth direction D4. The openings of the third spacer structure 53, the fourth spacer structure 54, and the sixth spacer structure 56 are not directly opposite to each other, thereby preventing leakage current from conducting between the second sub-pixel 64b, the fourth sub-pixel 65b, and the sixth sub-pixel 66b, and weakening the problem of pixel 6 stealing light.

[0075] Figure 13 For Figure 1 Another top view schematic diagram of the display panel according to the embodiment of the present application in the S area.

[0076] Further, please refer to Figure 13, the spacer structure 5 further includes a sixth spacer structure 56. The sixth spacer structure 56 partially surrounds the sixth sub-pixel 66b. The sixth spacer structure 56 has at least two openings, which can further reduce the internal resistance of the cathode 63. Considering that the openings of the third spacer structure 53 and the fourth spacer structure 54 are both parallel to the third and fourth directions D4, the openings of the sixth spacer structure 56 are oriented parallel to the first direction D1 or the second direction D2, so that the openings of the third spacer structure 53, the fourth spacer structure 54, and the sixth spacer structure 56 are not directly opposite each other, thereby preventing leakage current from conducting between the second sub-pixel 64b, the fourth sub-pixel 65b, and the sixth sub-pixel 66b, and weakening the problem of light stealing of the pixel 6.

[0077] Figure 14 For Figure 1 Another top view schematic diagram of the display panel according to an embodiment of the present application in the S region.

[0078] Further, please refer to Figure 14 , the spacer structure 5 further includes a sixth spacer structure 56. The sixth spacer structure 56 partially surrounds the sixth sub-pixel 66b. The sixth spacer structure 56 has at least two openings, which can further reduce the internal resistance of the cathode 63. Considering that the openings of the third spacer structure 53 and the fourth spacer structure 54 are both parallel to the third and fourth directions D4, the openings of the sixth spacer structure 56 are oriented parallel to the third direction D3 or the fourth direction D4, so that the openings of the third spacer structure 53 and the fourth spacer structure 54 are perpendicular to the openings of the sixth spacer structure 56, and the three are not directly opposite each other, thereby preventing leakage current from conducting between the second sub-pixel 64b, the fourth sub-pixel 65b, and the sixth sub-pixel 66b, and weakening the problem of light stealing of the pixel 6.

[0079] Figure 15 For Figure 1 Another cross-sectional view of the display panel according to an embodiment of the present application in the A-A section.

[0080] Further, please refer to Figure 15 , the display panel according to an embodiment of the present application further includes an array layer 2. The array layer 2 is disposed on the side facing the substrate 1. The pixel 6, the support structure 4, and the spacer structure 5 are all located on the side of the array layer 2 away from the substrate 1; the array layer 2 includes a first electrode layer 21. The first electrode layer 21 includes a plurality of first electrodes, and the first electrodes are electrically connected to the pixel 6.

[0081] The array layer 2 may include a plurality of pixel 6 circuits for controlling the pixel 6 to emit light. The pixel 6 circuit may include at least one thin film transistor (TFT). The array layer 2 further includes a first electrode layer 21. The first electrodes of the first electrode layer 21 are electrically connected to the pixel 6 circuit and are electrically connected to the pixel 6. The first electrodes may be used as the anode 61 of the pixel 6.

[0082] Further, continue to refer to Figure 15 , the display panel of the embodiment of the present application further includes a second electrode layer 7, and at least a part of the second electrode layer 7 is disposed on a side of the pixel 6 away from the substrate 1 and used as a cathode 63 of the pixel 6. The spacer structure 5 and the support structure 4 are exposed to the second electrode layer 7, that is to say, both the spacer structure 5 and the support structure 4 can block the second electrode layer 7. Therefore, the spacer structure 5 can partially block the second electrode layer 7 in corresponding regions of different pixels 6 to reduce the conduction of leakage current.

[0083] Figure 16 FIG. is a schematic structural diagram of a display device according to an embodiment of the present application.

[0084] Please refer to Figure 16 The embodiment of the present application further provides a display device 100. The display device 100 includes the display panel 200 of the foregoing embodiment of the present application. The display device 100 provided by the embodiment of the present application can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc.

[0085] In summary, the embodiment of the present application provides a display panel and a display device. The pixel definition layer of the display panel is disposed on one side of the substrate. The pixels are arranged along a first direction and a second direction, and the light-emitting layer of the pixel is disposed in the pixel opening. The support structure is located on a side of the pixel definition layer away from the substrate. The orthographic projection of the first surface of the spacer structure on the substrate covers the orthographic projection of the second surface on the substrate, presenting an inverted T shape or an inverted trapezoid. The pixel unit area includes a first color pixel, a second color pixel, two third color pixels, and a support structure. In the pixel unit area, the first spacer structure at least partially surrounds the first color pixel, the second spacer structure at least partially surrounds the second color pixel, and the openings of the first spacer structure and the second spacer structure both face the support structure. By providing the spacer structure with an opening, the cathode can be partially separated, so that the internal resistance distribution of the cathode is more uniform, reducing the risk of too high local internal resistance, and further reducing the overall internal resistance of the cathode. The opening faces the support structure, weakening the leakage current phenomenon generated between pixels of different colors in the pixel unit area.

[0086] The above is only the specific implementation manners of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present application. These modifications or substitutions should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A display panel, characterized in that, Comprising: Substrate; A plurality of pixels arranged in a matrix along a first direction and a second direction, the pixels including an anode, a light-emitting layer, and a cathode; the plurality of pixels including first-color pixels, second-color pixels, and third-color pixels; Pixel definition layer, including a plurality of pixel openings, at least a part of the light-emitting layer being located in the pixel openings; A plurality of support structures located on a side of the pixel definition layer away from the substrate; A plurality of spacer structures, in a direction perpendicular to the substrate, the spacer structures including a first surface away from the substrate and a second surface close to the substrate, a positive projection of the first surface on the substrate covering a positive projection of the second surface on the substrate, and an area of the positive projection of the first surface on the substrate being larger than an area of the positive projection of the second surface on the substrate; A plurality of pixel unit regions, including one of the first-color pixels, one of the second-color pixels, two of the third-color pixels, and one of the support structures; Along a third direction, the support structure is located between the first-color pixel and the second-color pixel, and along a fourth direction, the support structure is located between two of the third-color pixels; the first direction, the second direction, the third direction, and the fourth direction intersect pairwise; Within the pixel unit region, the spacer structure includes auxiliary openings, the spacer structure including a first spacer structure and a second spacer structure, the first spacer structure at least partially surrounding the first-color pixel, the second spacer structure at least partially surrounding the second-color pixel, and the auxiliary openings of the first spacer structure and the auxiliary openings of the second spacer structure both facing the support structure.

2. The display panel according to claim 1, wherein Within the pixel unit region, the spacer structure further includes second openings.

3. The display panel according to claim 1, characterized in that, A distance from a side of the spacer structure away from the substrate to the substrate is h1, and a distance from a side of the support structure away from the substrate to the substrate is h2, where h2 > h1.

4. The display panel according to claim 1, characterized in that Along the first direction, the display panel includes alternately arranged first pixel columns and second pixel columns; in the first pixel columns, the first-color pixels and the third-color pixels are alternately arranged along the second direction; in the second pixel columns, the second-color pixels and the third-color pixels are alternately arranged along the second direction; the first direction and the second direction intersect; Along the second direction, the display panel includes alternately arranged first pixel rows and second pixel rows, in the first pixel rows, the first-color pixels and the third-color pixels are alternately arranged along the first direction, and in the second pixel rows, the second-color pixels and the third-color pixels are alternately arranged along the first direction.

5. The display panel according to claim 4, wherein The first direction and the second direction are perpendicular, the third direction and the fourth direction are perpendicular, and the first direction and the third direction intersect, and the included angle is an acute angle.

6. The display panel according to claim 1, wherein The first-color pixel includes a first sub-pixel and a second sub-pixel, the first sub-pixel being located within the pixel unit region, and the second sub-pixel being located outside the pixel unit region; The spacing structure further includes a third spacing structure that partially surrounds the second sub-pixel. The third spacing structure has an opening, and the orientation of the opening is parallel to the third direction or the fourth direction.

7. The display panel according to claim 1, wherein The first color pixel is composed of a first sub-pixel and a second sub-pixel. The first sub-pixel is located within the pixel unit region, and the second sub-pixel is located outside the pixel unit region. The spacing structure further includes a third spacing structure that partially surrounds the second sub-pixel. The third spacing structure has at least two openings, and the orientation of the openings is parallel to the third direction or the fourth direction.

8. The display panel according to claim 6 or 7, characterized in that, The second color pixel is composed of a third sub-pixel and a fourth sub-pixel. The third sub-pixel is located within the pixel unit region, and the fourth sub-pixel is located outside the pixel unit region. The spacing structure further includes a fourth spacing structure that partially surrounds the fourth sub-pixel. The fourth spacing structure has an opening, and the orientation of the opening is parallel to the third direction or the fourth direction.

9. The display panel according to claim 6 or 7, wherein The second color pixel is composed of a third sub-pixel and a fourth sub-pixel. The third sub-pixel is located within the pixel unit region, and the fourth sub-pixel is located outside the pixel unit region. The spacing structure further includes a fourth spacing structure that partially surrounds the fourth sub-pixel. The fourth spacing structure has at least two openings, and the orientation of the openings is parallel to the third direction or the fourth direction.

10. The display panel according to claim 6 or 7, characterized in that, The first color pixel is composed of a first sub-pixel and a second sub-pixel. The first sub-pixel is located within the pixel unit region, and the second sub-pixel is located outside the pixel unit region. The second color pixel is composed of a third sub-pixel and a fourth sub-pixel. The third sub-pixel is located within the pixel unit region, and the fourth sub-pixel is located outside the pixel unit region. The spacing structure further includes a third spacing structure and a fourth spacing structure. The third spacing structure partially surrounds the second sub-pixel, and the fourth spacing structure partially surrounds the fourth sub-pixel. Both the third spacing structure and the fourth spacing structure have at least one opening, and the orientations of the openings of the third spacing structure and the fourth spacing structure are not opposite to each other.

11. The display panel according to claim 1, wherein, The third color pixel is composed of a fifth sub-pixel and a sixth sub-pixel. The fifth sub-pixel is located within the pixel unit region, and the sixth sub-pixel is located outside the pixel unit region. The spacing structure further includes a fifth spacing structure that partially surrounds the fifth sub-pixel. The fifth spacing structure has an opening, and the orientation of the opening is parallel to the third direction or the fourth direction and faces the support structure.

12. The display panel according to claim 11, wherein, The spacing structure further includes a sixth spacing structure that partially surrounds the sixth sub-pixel. The sixth spacing structure has an opening, and the orientation of the opening is parallel to the third direction or the fourth direction.

13. The display panel according to claim 11, wherein The spacer structure further includes a sixth spacer structure that partially surrounds the sixth sub-pixel. The sixth spacer structure has at least two openings, and the opening directions of the openings are parallel to the first direction or the second direction.

14. The display panel according to claim 11, wherein The spacer structure further includes a sixth spacer structure that partially surrounds the sixth sub-pixel. The sixth spacer structure has at least two openings, and the opening directions of the openings are parallel to the third direction or the fourth direction.

15. The display panel according to claim 11, characterized in that, The spacer structure further includes a sixth spacer structure that partially surrounds the sixth sub-pixel. The sixth spacer structure has at least one opening. The opening directions of the two sixth spacer structures adjacent along the first direction are not opposite to each other, and the opening directions of the two sixth spacer structures adjacent along the second direction are not opposite to each other.

16. The display panel according to claim 1, wherein It further includes an array layer disposed on one side of the substrate. The pixel, the support structure, and the spacer structure are all located on the side of the array layer away from the substrate. The array layer includes a first electrode layer, and the first electrode layer includes a plurality of first electrodes, and the first electrodes are electrically connected to the pixel.

17. The display panel according to claim 16, wherein It further includes a second electrode layer, and at least a part of the second electrode layer is disposed on the side of the pixel away from the substrate. The spacer structure and the support structure are exposed to the second electrode layer.

18. A display device, characterized in that, It includes the display panel according to any one of claims 1 to 17.

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