Display panel and near-to-eye display device

Abstract

The embodiment of the utility model provides a display panel and a near-to-eye display device. A pixel limiting structure in the display panel is located on one side of a first electrode. The pixel limiting structure comprises a pixel opening and a pixel limiting branch part, at least part of the first electrode is exposed by the pixel opening, at least part of the pixel opening is surrounded by the pixel limiting branch part, and the pixel limiting branch part comprises a limiting side face close to one side of the pixel opening. The light-emitting structure is located on the side, away from the first electrode, of the pixel limiting structure and covers the pixel opening and at least part of the limiting side face, and the light-emitting structure comprises multiple light-emitting layers. And the guide structure is partially arranged in the pixel limiting branch part and is electrically connected with the at least one light-emitting layer. Therefore, through the guiding structure which is partially arranged in the pixel limiting subsection and is electrically connected with the at least one light-emitting layer, the transverse leakage current between the two adjacent light-emitting structures is attracted, so that the transverse leakage current flowing from one light-emitting structure to the other light-emitting structure is reduced, and the secret lighting phenomenon of the display panel is improved.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a display panel and a near-eye display device. Background Technology

[0002] In existing display panels, there are leakage paths between adjacent sub-pixels. The low resistance of these leakage paths causes lateral leakage to flow along them to other non-illuminated sub-pixels, resulting in the sub-pixels being illuminated by others. Utility Model Content

[0003] This invention provides a display panel and a near-eye display device. By using a guiding structure partially disposed within a pixel-defined portion and electrically connected to at least one light-emitting layer, it attracts lateral leakage between two adjacent light-emitting structures, thereby reducing lateral leakage from one light-emitting structure to another and improving the phenomenon of light leakage in the display panel.

[0004] In a first aspect, embodiments of the present invention provide a display panel, comprising:

[0005] First electrode;

[0006] A pixel defining structure is located on one side of the first electrode; the pixel defining structure includes a pixel opening and a pixel defining portion, the pixel opening exposing at least a portion of the first electrode, the pixel defining portion surrounding at least a portion of the pixel opening, and the pixel defining portion including a defining side surface near the pixel opening;

[0007] A light-emitting structure is located on the side of the pixel defining structure away from the first electrode and covers the pixel opening and at least a portion of the defining side; the light-emitting structure includes multiple light-emitting layers;

[0008] The guiding structure is partially disposed within the pixel-defined portion and electrically connected to at least one of the light-emitting layers.

[0009] Secondly, embodiments of the present invention also provide a near-eye display device, including the display panel provided in any embodiment of the first aspect of the present invention.

[0010] The display panel provided in this embodiment of the utility model has a guide structure located within a pixel-defined portion and electrically connected to at least one light-emitting layer located on a defined side. This at least one light-emitting layer can be a common light-emitting layer for multiple light-emitting structures. Thus, when one of two adjacent light-emitting structures emits light, the guide structure can attract lateral leakage current from the at least one light-emitting layer electrically connected to it, thereby reducing lateral leakage current flowing from one light-emitting structure to another, improving the display panel's brightness retention, and enhancing the color purity of the display panel. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present utility model;

[0012] Figure 2 yes Figure 1 A schematic diagram of a cross-section along the A-A' direction;

[0013] Figure 3 yes Figure 1 Another cross-sectional view along the A-A' direction;

[0014] Figure 4 yes Figure 1 Another cross-sectional diagram along the A-A' direction;

[0015] Figure 5 yes Figure 1 Another cross-sectional diagram along the A-A' direction;

[0016] Figure 6 This is a schematic diagram of the structure of a pixel-defined portion provided in an embodiment of the present utility model;

[0017] Figure 7 This is a schematic diagram of another pixel-defined portion provided in an embodiment of the present invention;

[0018] Figure 8 This is a schematic diagram of the structure of a near-eye display device provided in an embodiment of this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be fully described below with reference to the accompanying drawings of the embodiments of this utility model and through specific implementation methods. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort fall within the protection scope of this utility model.

[0020] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention. Figure 2 yes Figure 1 A schematic diagram of a cross-section along the A-A' direction. See also... Figure 1 and Figure 2The display panel includes a first electrode 10, a pixel defining structure 20, a light-emitting structure 30, and a guiding structure 40. The pixel defining structure 20 is located on one side of the first electrode 10 and includes a pixel opening 210 and a pixel defining portion 220. The pixel opening 210 exposes at least a portion of the first electrode 10, and the pixel defining portion 220 surrounds at least a portion of the pixel opening 210, including a defining side surface 221 near the pixel opening 210. The light-emitting structure 30 is located on the side of the pixel defining structure 20 away from the first electrode 10 and covers the pixel opening 210 and at least a portion of the defining side surface 221. The light-emitting structure 30 includes multiple light-emitting layers 310. The guiding structure 40 is partially disposed within the pixel defining portion 220 and electrically connected to at least one light-emitting layer 310.

[0021] Specifically, such as Figure 1 and Figure 2 As shown, the display panel includes a driving substrate 01, a first electrode 10 located on one side of the driving substrate 01, and a pixel defining structure 20. A thin-film transistor (not shown) is disposed within the driving substrate 01. The first electrode 10 is located on the side of the pixel defining structure 20 near the driving substrate 01. The thin-film transistor is electrically connected to the first electrode 10, thereby providing a driving signal to the first electrode 10. The pixel defining structure 20 includes a pixel opening 210 and a pixel defining portion 220. The pixel opening 210 penetrates the pixel defining structure 20, and the pixel defining portion 220 surrounds at least a portion of the pixel opening 210. Along the thickness direction of the display panel, the pixel opening 210 at least partially overlaps with the first electrode 10, so that the pixel opening 210 exposes at least a portion of the first electrode 10, allowing the first electrode 10 to contact the light-emitting structure 30 covering the pixel opening 210. For example, the light-emitting structure 30 further includes multiple light-emitting layers 310 and a second electrode 320. The multi-layer light-emitting layer includes a common film layer, meaning that different light-emitting structures 30 share the same light-emitting layer. In addition, the multi-layer light-emitting layer 310 is located between the second electrode 320 and the first electrode 10. When no voltage is applied to the second electrode 320 and the first electrode 10, the light-emitting structure 30 does not emit light. When a voltage is applied to the second electrode 320 and the first electrode 10, the first electrode 10 injects holes into the contacting light-emitting layer 310, and the second electrode 320 injects electrons into the contacting light-emitting layer 310. Holes and electrons recombine in the light-emitting layer 310 to form photoexcitons, which emit light.

[0022] In addition, the display panel includes multiple light-emitting structures 30 of different colors, such as Figure 1As shown, multiple light-emitting structures 30 of different colors are arranged in an array. Because the luminous efficiency of the different colored light-emitting structures 30 varies, and because the light-emitting layers 310 between different light-emitting structures 30 share a common film layer, when one light-emitting structure 30 is lit on the display panel, lateral leakage occurs through the common film layer, flowing to the adjacent light-emitting structure 30. If the luminous efficiency of the adjacent light-emitting structure 30 is higher, it will cause the adjacent light-emitting structure 30 to exhibit "sneaking" (interrupted lighting). Furthermore, if the lateral leakage between two adjacent light-emitting structures 30 is large, when one light-emitting structure 30 is lit, the other light-emitting structure 30, even with lower luminous efficiency, will also exhibit "sneaking," causing crosstalk problems during display panel illumination and affecting the display effect.

[0023] Therefore, in this embodiment of the invention, a partial guide structure 40 is provided within the pixel-defined portion 220, and the guide structure 40 is electrically connected to at least one light-emitting layer 310 covering the defined side 221. For example, as shown... Figure 2 In the illustrated embodiment, the portion of the guide structure 40 exposed on the defined side 221 directly contacts the light-emitting layer 310 closest to the pixel defining structure 20. Since a portion of the guide structure 40 is provided within the pixel defining portion 220, and the pixel defining portion 220 surrounds the pixel opening 210, and a light-emitting structure 30 is provided within the pixel opening 210, the guide structure 40 is positioned between two adjacent light-emitting structures 30. Thus, when one of the two adjacent light-emitting structures 30 is lit, the guide structure 40 can attract lateral leakage current from the common light-emitting layer electrically connected to it, thereby reducing lateral leakage current flowing from the lit light-emitting structure 30 to the unlit light-emitting structure 30, improving the blackout phenomenon of the display panel, and thus enhancing the color purity of the display panel.

[0024] It should be noted that, Figure 2 The example shown is only an example of the direct electrical connection between the guide structure 40 and the light-emitting layer 310, but it is not a limitation. In other embodiments, the guide structure 40 can also be electrically connected to the light-emitting layer 310 inductively. Those skilled in the art can make the configuration as needed.

[0025] In summary, this embodiment of the invention provides a guide structure 40 located within the pixel-defining portion 220 and electrically connected to at least one light-emitting layer 310 located on the defining side 221. The at least one light-emitting layer 310 can be a common light-emitting layer for multiple light-emitting structures 30. Thus, when one of two adjacent light-emitting structures 30 emits light, the guide structure 40 can attract lateral leakage current from the at least one light-emitting layer 310 electrically connected to it, thereby reducing lateral leakage current from one light-emitting structure 30 to another, improving the display panel's brightness retention, and enhancing the color purity of the display panel.

[0026] Optionally, based on the above embodiments, see also... Figure 2 The guide structure 40 includes a first guide portion 410 and a second guide portion 420 connected together. The first guide portion 410 is located within the pixel defining portion 220, and the second guide portion 420 is located outside the pixel defining portion 220.

[0027] For example, such as Figure 2 In the illustrated embodiment, the first guide portion 410 can be a T-shaped structure. Specifically, the first guide portion 410 includes a portion extending in a horizontal direction and a portion extending in a vertical direction. The portion extending in the horizontal direction is exposed at the defining side 221 to facilitate electrical connection between the first guide portion 410 and at least one light-emitting layer 310. The portion extending in the vertical direction is exposed at the bottom of the pixel defining portion 220, thereby facilitating electrical connection between the first guide portion 410 and the second guide portion 420 located outside the pixel defining portion 220. Thus, after the first guide portion 410 attracts lateral leakage from the light-emitting layer 310 to which it is electrically connected, the lateral leakage can be released to the outside of the pixel defining portion 220 through the second guide portion 420. This improves the display panel's dimming effect while ensuring that the lateral leakage does not affect the normal operation of the light-emitting structure 30.

[0028] It should be noted that the driving substrate 01 may include conductive terminals (not shown in the figure), and the guiding structure 40 is electrically connected to the conductive terminals. For example... Figure 2 In the embodiment shown, the guiding structure 40 includes a first guiding portion 410 and a second guiding portion 420. The second guiding portion 420 is located outside the pixel defining portion 220 and is electrically connected to a conductive terminal. The first guiding portion 410 and the second guiding portion 420 are electrically connected, thereby releasing the lateral leakage current in the second guiding portion 420 through the driving substrate 01, thus ensuring that the lateral leakage current does not affect the normal operation of the light-emitting structure 30.

[0029] Optional, Figure 3 yes Figure 1Another schematic diagram of a cross-section along the A-A' direction. See also... Figure 3 The first guide portion 410 has an opening 50 between it and the light-emitting structure 30 on at least one side near the defining side 221. The opening 50 accommodates a portion of the light-emitting layer 310 so that a portion of at least one light-emitting layer 310 is disconnected at the location of the opening 50.

[0030] Specifically, such as Figure 3 As shown, if the lateral leakage between two adjacent light-emitting structures 30 is large, simply using the guide structure 40 to attract the lateral leakage will not effectively improve the problem of light leakage. Therefore, the first guide portion 410 can be set to be recessed within the pixel-limiting portion 220. Figure 3 In the illustrated embodiment, after the first guiding portion 410 is recessed, openings 50 exist between the first guiding portion 410 and the light-emitting structure 30 on the left and right sides of the pixel defining portion 220. Since the openings 50 are essentially located on the defining side 221, and multiple light-emitting layers 310 cover the defining side 221, during the fabrication of the light-emitting layer 310, the openings 50 will accommodate a portion of the light-emitting layer 310, causing at least one light-emitting layer 310 to have a discontinuity at the location of the openings 50, resulting in at least one light-emitting layer 310 being disconnected at the location of the openings 50. Thus, by retracting the first guiding portion 410, a portion of the common film layer between adjacent light-emitting structures 30 can be cut off, greatly reducing the lateral leakage between two adjacent light-emitting structures 30. The remaining lateral leakage can be attracted by the guiding structure 40, further improving the light-stealing phenomenon of the display panel.

[0031] It should be noted that, Figure 3 The description is exemplified only by the fact that the first guiding portion 410 has openings 50 on both the left and right sides of the pixel defining portion 220 and the light-emitting structure 30, but this is not a limitation. In other embodiments, Figure 4 yes Figure 1 Another cross-sectional diagram along the A-A' direction, such as... Figure 4 In the embodiment shown, the first guiding portion 410 has an opening 50 between it and the light-emitting structure 30 on one side (left or right) of the pixel defining portion 220. Those skilled in the art are not limited in this respect, as long as there is at least one opening 50 between two adjacent light-emitting structures 30.

[0032] Optionally, based on the above embodiments, Figure 5 yes Figure 1 Another cross-sectional diagram along the A-A' direction, see [link / reference]. Figure 5The pixel-defining portion 220 includes a first insulating layer 2101, a conductive layer 2102, and a second insulating layer 2103 stacked together. The first insulating layer 2101 is located on the side of the conductive layer 2102 away from the first electrode 10. The second insulating layer 2103 is located on the side of the conductive layer 2102 closer to the first electrode 10. The first guiding portion 410 includes a first sub-portion 4101 and a second sub-portion 4102 electrically connected. The first sub-portion 4101 reuses the conductive layer 2102, and the first sub-portion 4101 forms an opening 50 with the first insulating layer 2101 and the second insulating layer 2103 on at least one side near the defining side 221. Along the thickness direction of the display panel, the second sub-portion 4102 penetrates the second insulating layer 2103 and is electrically connected to the second guiding portion 420.

[0033] Specifically, both the first insulating layer 2101 and the second insulating layer 2103 can be inorganic insulating layers. The first guiding portion 410 includes a first sub-portion 4101 extending horizontally and a second sub-portion 4102 extending vertically. The first sub-portion 4101 is located between the first insulating layer 2101 and the second insulating layer 2103. This ensures that the first guiding portion 410 is provided within the pixel defining structure 220, while facilitating the subsequent formation of an opening 50 on the defining side 221 by the first sub-portion 4101 through the first insulating layer 2101 and the second insulating layer 2103. The opening 50 contains a portion of at least one light-emitting layer 310, and the first sub-portion 4101 can attract the lateral leakage of the light-emitting layer 310 located within the opening 50. Along the thickness direction of the display panel, the second sub-portion 4102 penetrates the second insulating layer 2103, so that the second sub-portion 4102 contacts the second guiding portion 420 located below the pixel defining portion 220. Furthermore, the first sub-section 4101 and the second sub-section 4102 are electrically connected, and the lateral leakage current attracted by the first sub-section 4101 can be transmitted to the second guide section 420 through the second sub-section 4102, and released to the outside of the pixel limiting section 220 through the second guide section 420. This improves the phenomenon of light leakage in the display panel while ensuring that the lateral leakage current does not affect the normal operation of the light-emitting structure 30.

[0034] It should be noted that the first sub-section 4101 is in direct contact with the portion of the light-emitting layer 310 located within the opening 50, or the first sub-section 4101 is inductively connected to the light-emitting layer 310 located within the opening 50. Specifically, ideally, the first sub-section 4101 can be in direct contact with the portion of the light-emitting layer 310 located within the opening 50. In this way, the first sub-section 4101 can attract more lateral leakage current from the light-emitting layer 310 through contact electrical connection, and the attraction speed of the lateral leakage current is relatively fast. However, considering that in the actual fabrication process, it is difficult to control the direct contact between the first sub-section 4101 and the portion of the light-emitting layer 310 located within the opening 50 after setting the opening 50, the distance between the first sub-section 4101 and the portion of the light-emitting layer 310 located within the opening 50 can be set to be less than a preset distance, thereby achieving inductive electrical connection between the first sub-section 4101 and the light-emitting layer 310 located within the opening 50, and thus reducing the fabrication difficulty. This application does not limit this, and those skilled in the art can set it as needed.

[0035] Optionally, based on the above embodiments, Figure 6 This is a schematic diagram of the structure of a pixel-defined portion provided in an embodiment of this utility model. See also... Figure 5 and Figure 6 The first insulating layer 2101 includes a first surface S1 on the side away from the first electrode 10 and a second surface S2 on the side closer to the first electrode 10. The second insulating layer 2013 includes a third surface S3 on the side away from the first electrode and a fourth surface S4 on the side closer to the first electrode 10. Along the thickness direction of the display panel, the second surface S2 covers the first surface S1, the fourth surface S4 covers the third surface S3, and the third surface S4 covers the second surface S2.

[0036] Specifically, the second surface S2 covers the first surface S1, meaning the first insulating layer 2101 has a trapezoidal cross-sectional shape. The fourth surface S4 covers the third surface S3, meaning the second insulating layer 2103 has a trapezoidal cross-sectional shape. At the same time, the third surface S4 covers the second surface S2. That is, along the thickness direction of the display panel, the surface of the second insulating layer 2103 near the first sub-section 4101 covers the surface of the first insulating layer 2101 near the first sub-section 4101. Thus, when the first sub-section 4101 forms an opening 50 through the first insulating layer 2101 and the second insulating layer 2103, the opening 50 has an upward-facing portion, which facilitates the entry of the light-emitting layer 310 covering the defined side 221 into the opening 50 in the actual manufacturing process. Furthermore, the first insulating layer 2101 needs to be trapezoidal in cross-sectional shape to prevent the first surface S1 from blocking the light-emitting layer 310 from entering the opening 50 when the coverage area of ​​the first surface S1 is greater than that of the second surface S2 above the opening 50. This ensures that the light-emitting layer 310 has a break at the opening 50. It should be noted that since the second insulating layer 2103 is located below the opening 50, its shape has a relatively small impact on the flow of the light-emitting layer 310 into the opening 50. Figure 6 The illustration is exemplified only by using the example of the second insulating layer 2103 having a trapezoidal cross-sectional shape, but it is not a limitation. In other embodiments, Figure 7 This is a schematic diagram of another pixel-defined portion provided in an embodiment of the present invention, as shown below. Figure 7 As shown, the second insulating layer 2103 can also be inverted trapezoidal in cross-section, which can be set as needed by those skilled in the art.

[0037] Optionally, based on the above embodiments, see also... Figure 6 On the side near the same defined side 221, the third surface S3 has a first edge L1, and the first sub-part 4101 has a second edge L2. The horizontal distance between the second edge L2 and the first edge L1 is L, where L satisfies: 30nm ≤ L ≤ 50nm.

[0038] Specifically, L is the depth of the first sub-part 4101 recessed between the first insulating layer 2101 and the second insulating layer 2103. In other words, L is the depth of the opening 50 in the horizontal direction. Based on this, if the depth of the opening 50 in the horizontal direction is too small, such as L less than 30nm, the portion of the light-emitting layer 310 accommodated by the opening 50 may be too small, so that the light-emitting layer 310 cannot form a break at the position of the opening 50, that is, the blocking effect of the light-emitting layer 310 is poor, resulting in a poor improvement effect of the light leakage. If the depth of the opening 50 in the horizontal direction is too large, such as L > 50nm, the opening 50 may block the film layer (such as the second electrode) located on the multi-layer light-emitting layer 310, thereby affecting the normal operation of the display panel. Therefore, by setting L to satisfy 30nm≤L≤50nm, while ensuring that the light-emitting layer 310 forms a break at the position of the opening 50, the opening 50 is prevented from blocking the film layer located on the multi-layer light-emitting layer 310.

[0039] Based on the above embodiments, see below. Figure 6 The thickness of the first sub-section 4101 is D, where D satisfies: 20nm ≤ D ≤ 50nm. Specifically, on the one hand, the thickness of the first sub-section 4101 is related to the size of the formed opening 50. That is, by setting D to satisfy 20nm ≤ D ≤ 50nm, while ensuring that the light-emitting layer 310 forms a discontinuity at the position of the opening 50, the opening 50 is prevented from blocking the film layer located above the multilayer light-emitting layer 310. On the other hand, the thickness of the first sub-section 4101 is also related to the efficiency of the first sub-section 4101 in attracting lateral leakage current. Therefore, by setting D to satisfy 20nm ≤ D ≤ 50nm, while ensuring that the first sub-section 4101 has a high efficiency in attracting lateral leakage current, the opening 50 is prevented from blocking the film layer located above the multilayer light-emitting layer 310.

[0040] Optionally, based on the above implementation, see [link to relevant documentation]. Figure 3 The multilayer light-emitting layer 310 includes an excitation layer 3101, a hole layer 3102 located on the side of the excitation layer 3101 near the first electrode 10, and an electron layer 3103 located on the side of the excitation layer 3101 away from the first electrode 10. An opening 50 accommodates at least a portion of the hole layer 3102, such that the hole layer 3102 is interrupted at the opening 50. The hole layer 3102 includes a stacked hole injection layer (not shown), a hole transport layer (not shown), and an electron blocking layer (not shown). The hole injection layer is located on the side of the hole transport layer near the first electrode 10, and the opening 50 accommodates a portion of the hole injection layer and / or the hole transport layer, such that there is a break in the hole injection layer and / or the hole transport layer at the opening 50.

[0041] Specifically, such as Figure 3In the illustrated embodiment, both the hole layer 3102 and the electron layer 3103 are common light-emitting layers between two adjacent light-emitting structures. The hole layer 3102 is located on the side of the excitation layer 3201 closest to the first electrode 10, and is a single, continuous layer, covering both the pixel opening 210 and the pixel defining portion 220. The hole layer 3102 is used to transfer holes generated by the first electrode 10 to the excitation layer 3101. The electron layer 3103 is located on the side of the excitation layer 3201 away from the first electrode 10 and is in contact with the second electrode 320. The electron layer 3103 is used to transfer electrons generated by the second electrode 320 to the excitation layer 3101. The excitation layer 3201 of different light-emitting structures 30 is made of different materials and is set independently. When the second electrode 320 transfers electrons to the excitation layer 3201 through the electron layer 3103 and the first electrode 10 transfers holes to the excitation layer 3201 through the hole layer 3102, the excitation layer 3201 of different light-emitting structures 30 emits different colors of light. Since the lateral leakage between two adjacent light-emitting structures 30 usually occurs in the hole layer 3102, the opening 50 can be set to at least accommodate part of the hole layer 3102 so that the hole layer 3102 is broken at the opening 50. In this way, the hole layer 3102 between adjacent light-emitting structures 30 can be cut off by the inward-retracting first guide portion 410, which greatly reduces the lateral leakage between two adjacent light-emitting structures 30. The remaining lateral leakage can be attracted by the guide structure 40, which further improves the phenomenon of light leakage in the display panel.

[0042] It should be noted that this embodiment of the present invention is only illustrated by taking the opening 50 accommodating a portion of the hole layer 3102 as an example, but it is not limited thereto. In other embodiments, the opening 50 may also accommodate a portion of the hole layer 3102 and a portion of the electron layer 3103, thereby further improving the phenomenon of light leakage in the display panel.

[0043] Furthermore, based on the above embodiments, the hole layer 3102 may include a hole injection layer, a hole transport layer, and an electron blocking layer disposed as a single layer. The hole injection layer is in direct contact with the first electrode 10. The hole transport layer is located on the side of the hole injection layer away from the first electrode 10, thereby transporting holes generated by the first electrode 10 to the excitation layer 3101 through the hole injection layer and the hole transport layer. The electron blocking layer is located on the side of the hole transport layer away from the first electrode 10, and is used to prevent electrons transported in the electron layer 3103 from entering the hole layer 3102. Since the lateral leakage between two adjacent light-emitting structures 30 usually occurs in the hole injection layer and the hole transport layer, the opening 50 can be set to at least accommodate part of the hole injection layer and / or the hole transport layer, so that the hole injection layer and / or the hole transport layer are disconnected at the opening 50. In this way, the hole injection layer and / or the hole transport layer between adjacent light-emitting structures 30 can be cut off by the inward-retracting first guide portion 410, which greatly reduces the lateral leakage between two adjacent light-emitting structures 30. The remaining lateral leakage can be attracted by the guide structure 40, which further improves the phenomenon of light leakage in the display panel.

[0044] Optionally, based on the above embodiments, see also... Figure 3 The second guide section 420 is disposed in the same layer as the first electrode 10. Specifically, as shown... Figure 3 In the illustrated embodiment, the display panel further includes a plurality of insulating structures 60. The insulating structures 60 are disposed on the same layer as the first electrodes 10, and along the thickness direction of the display panel, the insulating structures 60 at least partially overlap with the pixel defining portions 220. Thus, the plurality of insulating structures 60 define a plurality of first electrodes 10, and the plurality of first electrodes 10 are correspondingly disposed with the light-emitting structures 30. In addition, the insulating structure 60 includes two independently disposed insulating structure portions 610. Along the thickness direction of the display panel, the two insulating structure portions 610 of the same insulating structure 60 at least partially overlap with the same pixel defining portion 220. The second guiding portion 420 is disposed between the two insulating structure portions 610 of the same insulating structure 60, thereby avoiding interference with the normal operation of the first electrodes 10 when lateral leakage is released through the second guiding portion 420. Based on this, the second guiding portion 420 and the first electrode 10 can be arranged in the same layer. Therefore, during manufacturing, the second guiding portion 420 and the first electrode 10 can be formed in the same process using the same mask, eliminating the need to make separate masks for the second guiding portion 420 and the first electrode 10, thus saving costs, reducing the number of processes, and improving production efficiency.

[0045] Based on the same inventive concept, this utility model embodiment also provides a near-eye display device. Figure 8 This is a structural schematic diagram of a near-eye display device provided in an embodiment of this utility model. (See diagram below.) Figure 8As shown, the near-eye display device 1 can be an augmented reality (AR) display device, a virtual reality (VR) display device, an electronic view finder (EVF), a mobile phone, a computer, or a television, etc. This embodiment of the utility model does not limit it in this way.

[0046] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized by, The display panel comprises: a first electrode; a pixel defining structure located on one side of the first electrode; the pixel defining structure comprises a pixel opening and a pixel defining portion, the pixel opening exposes at least part of the first electrode, the pixel defining portion surrounds at least part of the pixel opening, and the pixel defining portion comprises a defining side close to one side of the pixel opening; a light emitting structure located on a side of the pixel defining structure away from the first electrode and covering the pixel opening and at least part of the defining side; the light emitting structure comprises a plurality of light emitting layers; a guide structure partially disposed in the pixel defining portion and electrically connected to at least one of the light emitting layers.

2. The display panel of claim 1, wherein, The guide structure comprises a first guide portion and a second guide portion connected to each other; the first guide portion is located in the pixel defining portion, and the second guide portion is located outside the pixel defining portion.

3. The display panel of claim 2, wherein: the first guide portion has an opening between at least one side close to the defining side and the light emitting structure, the opening accommodates part of the light emitting layer, so that part of at least one of the light emitting layers is disconnected at the opening position.

4. The display panel of claim 3, wherein: the pixel defining portion comprises a first insulating layer, a conductive layer and a second insulating layer which are stacked; the first insulating layer is located on a side of the conductive layer away from the first electrode; the second insulating layer is located on a side of the conductive layer close to the first electrode; the first guide portion comprises a first sub-portion and a second sub-portion electrically connected to each other; the first sub-portion multiplexes the conductive layer, and the first sub-portion has the opening formed between at least one side close to the defining side and the first insulating layer and the second insulating layer; in the thickness direction of the display panel, the second sub-portion penetrates through the second insulating layer and is electrically connected to the second guide portion.

5. The display panel of claim 4, wherein: the first insulating layer comprises a first surface on a side away from the first electrode and a second surface on a side close to the first electrode; the second insulating layer comprises a third surface on a side away from the first electrode and a fourth surface on a side close to the first electrode; in the thickness direction of the display panel, the second surface covers the first surface, the fourth surface covers the third surface, and the third surface covers the second surface.

6. The display panel of claim 5, wherein: on a side close to the same defining side, the third surface has a first edge, and the first sub-portion has a second edge; the horizontal distance between the second edge and the first edge is L, and L satisfies: 30nm≤L≤50nm.

7. The display panel of claim 4, wherein: the thickness of the first sub-portion is D, and D satisfies: 20nm≤D≤50nm.

8. The display panel of claim 4, wherein: the first sub-portion is in direct contact with part of the light emitting layer located in the opening. Alternatively, the first sub-portion is in electric connection with the light-emitting layer located in the opening. 9.The display panel of claim 3, wherein, The multi-layer light-emitting layer comprises an excitation layer, a hole layer located on the side of the excitation layer close to the first electrode, and an electron layer located on the side of the excitation layer away from the first electrode; The opening accommodates at least part of the hole layer, so that the hole layer is discontinuous at the position of the opening; The hole layer comprises a hole injection layer, a hole transport layer, and an electron blocking layer arranged in a stack; The hole injection layer is located on the side of the hole transport layer close to the first electrode; The opening accommodates part of the hole injection layer and / or the hole transport layer, so that the hole injection layer and / or the hole transport layer is discontinuous at the position of the opening. 10.The display panel of claim 2, wherein, The second guide portion is arranged in the same layer as the first electrode. 11.The display panel of claim 1, wherein, The display panel further comprises a driving substrate comprising a conductive terminal; the guide structure is in electric connection with the conductive terminal.

12. A near-eye display device, comprising: A display panel according to any one of claims 1-11.

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