Display panel, display device, and manufacturing method of the display panel

Abstract

To improve a use feeling of a display panel, and reduce a thickness of them.SOLUTION: A display panel comprises: a substrate 10; a separation structure 20; a light emitting function layer 30; a sealing protection layer 40; and an optical function part 50. The separation structure 20 is provided to one side of the substrate 10, and forms a separation open 21 so as to be surrounded by the separation structure 20. The light emitting function layer 30 is provided to one side of the substrate 10, and comprises a light emission structure 31 that is corresponded and provided to the separation open 21. The sealing protection layer 40 is provided to the side so as to be separated from the substrate 10 of the light emitting function layer 30, and one part of the sealing protection layer 40 is fitted into the separation open 21. The optical function part 50 is provided into a sealing protection part, and a positive projection in the substrate 10 of the optical function part 50 is provided so as to be overlapped with the positive projection in at least one substrate 10 of the separation structure 20 and the light emission structure 31. An existence of the optical function part 50 of the present application can improve a use feeling of the display panel, and the optical function part 50 is provided into the sealing protection layer 40, and the existence of them contributes a realize of a thin type layout.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This application relates to the technical field of display devices, and in particular, to a display panel, a display device, and a method for manufacturing a display panel.

Background Art

[0002] Flat display panels such as organic light emitting diode (OLED) panels and display panels using light emitting diode (LED) devices have advantages such as high image quality, low power consumption, thin body, and wide application range. Therefore, they are widely applied to various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers, and have become the main display panels in the display field.

Summary of the Invention

[0003] Embodiments of this application provide a display panel, a display device, and a method for manufacturing a display panel that can improve the display effect.

[0004] In a first aspect, embodiments of this application provide a display panel, which includes a substrate, an isolation structure, a light emitting functional layer, a sealing and protection layer, and an optical functional part. The isolation structure is provided on one side of the substrate, and the isolation structure surrounds to form an isolation opening. The light emitting functional layer is provided on one side of the substrate, and the light emitting functional layer includes a light emitting structure provided corresponding to the isolation opening.

[0005] The sealing and protection layer is provided on the side of the light emitting functional layer away from the substrate, and a part of the sealing and protection layer is embedded in the isolation opening. The optical functional part is provided in the sealing and protection layer, and the orthographic projection of the optical functional part on the substrate overlaps with the orthographic projection of at least one of the isolation structure and the light emitting structure on the substrate.

[0006] In some embodiments, the encapsulation protection layer includes a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer that are sequentially stacked along a direction away from the substrate. The first encapsulation layer includes a plurality of first encapsulation portions respectively provided in a plurality of isolation openings.

[0007] In some embodiments, at least a part of the optical functional portion is located between the first encapsulation layer and the second encapsulation layer.

[0008] In some embodiments, at least a part of the optical functional portion is located between the second encapsulation layer and the third encapsulation layer.

[0009] In some embodiments, the first encapsulation layer and the third encapsulation layer include inorganic materials, and the second encapsulation layer includes organic materials.

[0010] In some embodiments, the isolation structure includes a first isolation portion and a second isolation portion that are sequentially stacked along a direction away from the substrate. The orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate.

[0011] In some embodiments, the display panel further includes a first electrode layer provided on a side of the light-emitting functional layer away from the substrate. The first electrode layer includes a first electrode provided corresponding to the isolation opening. The first isolation portion includes a conductive material, and the first electrode is provided electrically connected to the first isolation portion.

[0012] In some embodiments, the isolation structure further includes a third isolation portion provided on a side facing the substrate of the first isolation portion. The third isolation portion includes a conductive material and is provided electrically connected to the first isolation portion. Here, the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the third isolation portion on the substrate, and the first electrode and the third isolation portion are installed in a lapped manner.

[0013] In some embodiments, the optical functional portion includes a first adjustment portion provided on a side away from the substrate of the second isolation portion. The light reflectivity corresponding to the first adjustment portion is smaller than the light reflectivity corresponding to the second isolation portion.

[0014] In some embodiments, the first adjustment part includes a black matrix.

[0015] In some embodiments, the orthographic projection of the first adjustment part on the substrate covers the orthographic projection of the second isolation part on the substrate.

[0016] In some embodiments, the orthographic projection of the first adjustment part on the substrate covers the orthographic projection of the second isolation part on the substrate and at least a part of the light-emitting structure.

[0017] In some embodiments, the encapsulation protection layer includes a first encapsulation layer. Some structures in the first encapsulation layer are provided by being bonded to the isolation structure. The first encapsulation layer includes a first portion located on the side away from the substrate of the first isolation part. At least a part of the first adjustment part is located on the side away from the substrate of the first portion and is provided by being bonded to the first portion.

[0018] In some embodiments, the number of isolation openings is plural. The first encapsulation layer includes a plurality of first encapsulation parts provided corresponding to the plurality of isolation openings. The first portions corresponding to at least some adjacent first encapsulation parts are provided with intervals. At least a part of the first adjustment part is located between the adjacent first portions.

[0019] In some embodiments, the optical functional part includes a second adjustment part at least a part of which is fitted into the isolation opening. The second adjustment part includes a filter part.

[0020] In some embodiments, the second adjustment part includes a first surface away from the substrate. The first surface has the same height as the plane where the substrate is located.

[0021] In some embodiments, the second adjustment part is provided by being bonded to the first encapsulation part.

[0022] In some embodiments, the isolation structure includes a first isolation part and a second isolation part which are sequentially laminated along the direction away from the substrate. The orthographic projection of the first isolation part on the substrate is located within the orthographic projection of the second isolation part on the substrate.

[0023] The first sealing part includes a second part provided by being bonded to the first isolation part, a third part provided by being bonded to the second isolation part, and a fourth part connected to the second part and covering the light-emitting structure. The third part and the fourth part are spaced apart in the thickness direction of the substrate to form a gap space, and at least a part of the second adjustment part is located on the side away from the substrate of the gap space.

[0024] In some embodiments, a part of the second adjustment part is located within the gap space.

[0025] In some embodiments, the first sealing part includes a first part located on the side away from the substrate of the first isolation part. The first part is connected to the third part, and the surface of the second adjustment part away from the substrate has the same height as the surface of the first part away from the substrate.

[0026] In some embodiments, the optical functional part further includes a first adjustment part, and at least a part of the orthographic projection of the first adjustment part on the substrate is located between the orthographic projections of the adjacent second adjustment parts on the substrate. The first adjustment part includes a light-absorbing material.

[0027] In some embodiments, the encapsulation protection layer includes a second encapsulation layer located on the side away from the substrate of the first encapsulation layer, and at least a part of both the first adjustment part and the second adjustment part is located between the first encapsulation layer and the second encapsulation layer.

[0028] In some embodiments, the isolation structure includes a first isolation part and a second isolation part provided by being sequentially laminated along the direction away from the substrate. The orthographic projection of the first isolation part on the substrate is located within the orthographic projection of the second isolation part on the substrate. The first sealing part includes a second part provided by being bonded to the first isolation part, a third part provided by being bonded to the second isolation part, and a fourth part connected to the second part and covering the light-emitting structure. The third part and the fourth part are spaced apart in the thickness direction of the substrate to form a gap space, and at least a part of the first adjustment part is located on the side away from the substrate of the gap space.

[0029] In some embodiments, a part of the first adjustment portion is located within the gap space.

[0030] In some embodiments, the second adjustment portion is also located between the first sealing layer and the second sealing layer, and the first adjustment portion is located between the second sealing layer and the third sealing layer.

[0031] In a second aspect, embodiments of the present application provide a display device including a display panel in any of the above embodiments.

[0032] As a third aspect, embodiments of the present application provide a method for manufacturing a display panel, the manufacturing method including: forming an isolation structure on the substrate side, and forming a plurality of isolation openings surrounded by the isolation structure; sequentially forming a first light-emitting material layer, a first sealing material layer, and an optical functional material layer on the substrate side; removing a part of the optical functional material layer, and removing the first sealing material layer and the first light-emitting material layer corresponding to the positions of some of the isolation openings, so as to form a first light-emitting structure and a first sealing portion at positions corresponding to other isolation openings, and forming an optical functional portion, wherein the first light-emitting structure and the first sealing portion are provided corresponding to the isolation openings, and a positive projection of the optical functional portion on the substrate overlaps with a positive projection of at least one of the first light-emitting structure and the isolation structure on the substrate; and including.

[0033] In some embodiments, the optical functional material layer includes a second adjustment material layer. In the step of removing a part of the optical functional material layer and removing the first sealing material layer and the first light-emitting material layer corresponding to the positions of some of the isolation openings, by removing the first light-emitting material layer, the first sealing material layer, and the second adjustment material layer corresponding to the positions of the isolation openings, a first light-emitting structure, a first sealing portion, and a second adjustment portion are formed at positions corresponding to other isolation openings. At least a part of the second adjustment portion is located within the isolation opening.

[0034] In some embodiments, after the step of removing some of the optical functional material layers and removing the first encapsulation material layer and the first light-emitting material layer corresponding to the positions of some of the isolation openings, further, including thinning the second adjustment part so that the surface of the second adjustment part away from the substrate is parallel to the plane where the substrate is located.

[0035] In some embodiments, after the step of removing some of the optical functional material layers and removing the first encapsulation material layer and the first light-emitting material layer corresponding to the positions of some of the isolation openings, further, a first adjustment part is formed on the side of the isolation structure away from the substrate, the isolation structure includes a first isolation part and a second isolation part which are sequentially stacked along the direction away from the substrate, the orthographic projection of the first isolation part on the substrate is located within the orthographic projection of the second isolation part on the substrate, and the light reflectivity corresponding to the first adjustment part is smaller than the light reflectivity corresponding to the second isolation part.

[0036] In some embodiments, the second adjustment part includes a filter part, and / or the first adjustment part includes a black matrix.

[0037] In some embodiments, after forming the first adjustment part on the side of the isolation structure away from the substrate, further includes forming a second encapsulation layer and a third encapsulation layer on the side of the second adjustment part away from the substrate.

[0038] In some embodiments, the optical functional material layer includes a first adjustment material layer. In the step of removing some of the optical functional material layers and removing the first encapsulation material layer and the first light-emitting material layer corresponding to the positions of some of the isolation openings, by removing the first adjustment material layer corresponding to the positions of all the isolation openings and removing the first encapsulation material layer and the first light-emitting material layer corresponding to the positions of some of the isolation openings, a first light-emitting structure, a first encapsulation part, and a first adjustment part are formed at positions corresponding to other isolation openings, and at the positions of other isolation openings, at least a part of the first adjustment part is located on the side of the isolation structure away from the substrate.

[0039] In some embodiments, the first adjustment part includes a black matrix.

[0040] In some embodiments, in other isolation openings, at least a part of the first adjusting part is located within the isolation opening, and the first adjusting part located within the isolation opening is connected to the first adjusting part located on the side away from the substrate of the isolation structure.

[0041] In some embodiments, the manufacturing method further includes the step of sequentially forming a second light-emitting material layer, a first encapsulation material layer, and an optical functional material layer on the substrate side. A part of the structures of the second light-emitting material layer, the first encapsulation material layer, and the optical functional material layer are located on the side away from the substrate of the first light-emitting structure. By removing a part of the optical functional material layer, removing the first encapsulation material layer and the second light-emitting material layer corresponding to the positions of some of the isolation openings, and removing the optical functional material layer, the second light-emitting material layer, and the first encapsulation material layer located on the side away from the substrate of the first light-emitting structure, a second light-emitting structure and a first encapsulation part are formed at positions corresponding to other isolation openings, and an optical functional part is formed. The first light-emitting structure and the second light-emitting structure are used to emit light of different colors.

[0042] The embodiments of the present application provide a display panel, a display device, and a manufacturing method of the display panel. The presence of the optical functional part can improve the user experience of the display panel, and the optical functional part is provided within the encapsulation protection layer. With such a design, the display panel does not need to add a new film layer structure for providing the optical functional part, thereby improving the user experience of the display panel and not affecting the thickness of the entire display panel, contributing to the realization of the thin-type design of the display panel.

Brief Description of the Drawings

[0043] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments are briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044]

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Embodiments for Carrying Out the Invention

[0045] Hereinafter, the features and exemplary embodiments of each aspect of the present application will be described in detail. To more clearly understand the object, technical solution and advantages of the present application, the present application will be further described in more detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to interpret the present application and do not limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only provided to show examples of the present application to better understand the present application.

[0046] In addition, in this specification, relational terms such as first and second are used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such relationship or order between these entities or operations. Also, the terms "comprising", "including" or any other variation are intended to cover non-exclusive inclusion. Thereby, a process, method, article or facility 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 facility. Without more limitations, an element limited by the phrase "...comprising" does not exclude the presence of other like elements in the process, method, article or facility comprising the element.

[0047] With the development of informatization, the field of display panels has developed rapidly, and people's requirements for display panels are getting higher and higher. However, how to reduce the manufacturing cost of display panels while improving the display effect and thinning of display panels has become the research direction of many manufacturers.

[0048] In a first aspect, referring to FIG. 1, an embodiment of the present application provides a display panel. The display panel includes a substrate 10, an isolation structure 20, a light-emitting functional layer 30, a sealing and protecting layer 40, and an optical functional part 50. The isolation structure 20 is provided on one side of the substrate 10, and the isolation structure 20 surrounds to form a plurality of isolation openings 21. The light-emitting functional layer 30 is provided on one side of the substrate 10, and the light-emitting functional layer 30 includes a light-emitting structure 31 provided corresponding to the isolation opening 21.

[0049] The sealing and protecting layer 40 is provided on the side of the light-emitting functional layer 30 away from the substrate 10, and a part of the sealing and protecting layer 40 is embedded in the isolation opening 21. The optical functional part 50 is provided in the sealing and protecting part, and the orthographic projection of the optical functional part 50 on the substrate 10 overlaps with the orthographic projection of at least one of the isolation structure 20 and the light-emitting structure 31 on the substrate 10.

[0050] The substrate 10 mainly plays a supporting role, and other film layers are sequentially laminated on the substrate 10. The so-called sequentially laminated herein means that other film layers are sequentially provided along the thickness direction of the substrate 10, and the substrate 10 may include a plurality of film layer structures. The present application does not limit the specific composition of the film layer structure of the film layer. In addition, since the thickness direction of other film layers located on one side of the substrate 10 generally coincides with the thickness direction of the substrate 10 itself, for the convenience of description, the thickness direction of the substrate 10 or the thickness direction of other film layers described later in the embodiments of the present application is all indicated in the same direction.

[0051] The light-emitting functional layer 30 and the isolation structure 20 are located on the same side of the substrate 10. The light-emitting functional layer 30 is provided with a light-emitting structure 31 corresponding to the isolation opening 21. Here, "the light-emitting structure 31 is provided corresponding to the isolation opening 21" means that at least a part of the orthographic projection of the light-emitting structure 31 on the substrate 10 is located within the orthographic projection of the isolation opening 21 on the substrate 10. At least a part of the light-emitting structure 31 may be located within the isolation opening 21, or at least a part of it may be located on the side facing the substrate 10 of the isolation opening 21. The embodiments of the present application are not limited thereto.

[0052] The light-emitting structure 31 includes, but is not limited to, a red light-emitting structure that emits red light, a green light-emitting structure that emits green light, and a blue light-emitting structure that emits blue light. Each light-emitting structure 31 may include film layers such as a hole injection layer (Hole Inject Layer, HIL), a hole transport layer (Hole Transport Layer, HTL), a light-emitting layer, an electron injection layer (Electron Inject Layer, EIL), and an electron transport layer (Electron Transport Layer, ETL) provided in a stacked manner. In some other embodiments, the light-emitting structure 31 may include a plurality of light-emitting layers provided in a stacked manner, and a charge generation layer may be provided between adjacent light-emitting layers.

[0053] Due to the provision of the isolation structure 20, the light-emitting functional layer 30 can reduce the manufacturing cost of the display panel by forming a plurality of light-emitting structures 31 provided at intervals without the need for a fine metal mask. Specifically, taking the manufacture of the red light-emitting structure before the manufacture of the green light-emitting structure as an example, since the precision metal mask is removed, the red light-emitting material corresponding to the red light-emitting structure first falls into each isolation opening 21, and then a part of the red light-emitting material in the isolation opening 21 is selectively etched away, leaving a part of the red light-emitting material in the isolation opening 21 to form the red light-emitting structure. Thereafter, the green light-emitting material corresponding to the green light-emitting structure falls into each isolation opening 21, and then a part of the green light-emitting material in the isolation opening 21 is selectively etched away, leaving a part of the green light-emitting material in the isolation opening 21 to form the green light-emitting structure.

[0054] The encapsulation protection layer 40 is located on the side of the light-emitting functional layer 30 away from the substrate 10. The encapsulation protection layer 40 can play a role of encapsulation protection for the light-emitting functional layer 30, thereby reducing the influence on the light-emitting structure 31 caused by factors such as water vapor. Also, due to the isolation structure 20, the encapsulation protection layer 40 may be partially fitted into the isolation opening 21. Since the light-emitting structure 31 is generally provided corresponding to the isolation opening 21, a part of the structure where the encapsulation protection layer 40 is fitted into the isolation opening 21 can achieve the effect of independently encapsulating the light-emitting structure 31, thereby further reducing the influence of factors such as water vapor on the light-emitting structure 31 and improving the reliability of use of the display panel.

[0055] In addition, the display panel according to the embodiment of the present application further includes an optical function unit 50. The optical function unit 50 can exert an adjustment effect on light rays. According to the actual use situation, the light rays mentioned here may include the light rays emitted from the light-emitting structure 31, or may include the light rays incident from the external environment into the display panel. The embodiment of the present application is not limited thereto. As long as the optical function unit 50 can exert an adjustment effect on at least some light rays and improve the user experience of the display panel.

[0056] Furthermore, according to different usage requirements, the position of the optical function unit 50 may be different. Specifically, the optical function unit 50 may be selectively provided to overlap only with the orthographic projection on the substrate 10 of the light-emitting structure 31, or the optical function unit 50 may be selectively provided to overlap only with the orthographic projection on the substrate 10 of the isolation structure 20, or the optical function unit 50 may be selectively provided to overlap simultaneously with the orthographic projections on the substrates 10 of the light-emitting structure 31 and the isolation structure 20.

[0057] In the related art, the optical function unit 50 is generally located at a position close to the light-emitting surface of the display panel. That is, in the thickness direction, the optical function unit 50 generally has a large pitch from the light-emitting functional layer 30. However, in such a design, the presence of the optical function unit 50 increases the overall thickness corresponding to the display panel, which is disadvantageous for the thinning of the display panel.

[0058] In the embodiment of the present application, the presence of the optical functional part 50 can improve the usability of the display panel, and the optical functional part 50 is provided within the encapsulation protection layer 40. With such a design, the display panel does not need to add a new film layer structure for providing the optical functional part 50. Thereby, while improving the usability of the display panel, it does not affect the thickness of the entire display panel, contributing to the realization of the thin-type design of the display panel.

[0059] Note that the encapsulation protection layer 40 may include a plurality of film layer structures provided in a stacked manner, and the optical functional part 50 may be selectively provided between any two film layers in the encapsulation protection layer 40. Also, when the optical functional part 50 has different structures, the different structures in the optical functional part 50 may be respectively provided at different height positions in the thickness direction of the encapsulation protection layer 40, or may be provided at the same height position in the thickness direction of the encapsulation protection layer 40. The embodiments of the present application do not limit this.

[0060] In some embodiments, as shown in FIG. 1, the encapsulation protection layer 40 includes a first encapsulation layer 41, a second encapsulation layer 42, and a third encapsulation layer 43 that are sequentially stacked along the direction away from the substrate 10. The first encapsulation layer 41 includes a plurality of first encapsulation parts 411 respectively provided within the plurality of isolation openings 21.

[0061] The encapsulation protection layer 40 includes at least three film layers, namely the first encapsulation layer 41, the second encapsulation layer 42, and the third encapsulation layer 43. By the three film layers together constituting a thin-film encapsulation structure, it is advantageous for improving the encapsulation protection effect on the light-emitting structure 31. Regarding the material compositions of the first encapsulation layer 41, the second encapsulation layer 42, and the third encapsulation layer 43, they are not limited in the embodiments of the present application. Optionally, the first encapsulation layer 41 and the third encapsulation layer 43 include inorganic materials, and the second encapsulation layer 42 includes organic materials. In this way, while meeting the requirements of encapsulation, the first encapsulation layer 41 and the third encapsulation layer 43 can play a role in restricting the position of the second encapsulation layer 42.

[0062] Furthermore, the first encapsulation layer 41 is the film layer closest to the light-emitting structure 31 in the encapsulation protection layer 40. The first encapsulation layer 41 may include a plurality of first encapsulation portions 411 respectively provided in the plurality of isolation openings 21. The plurality of first encapsulation portions 411 may be provided corresponding to the plurality of light-emitting structures 31, thereby realizing independent encapsulation of the plurality of light-emitting structures 31 and improving the reliability of encapsulation.

[0063] The specific positional relationship of the optical functional part 50 with respect to the encapsulation protection layer 40 is not limited in the embodiments of the present application. Exemplarily, in the thickness direction, at least a part of the optical functional part 50 may be interposed between any two layers of the encapsulation protection layer 40, or at least a part of the optical functional part 50 may be provided inside at least one of the first encapsulation layer 41, the second encapsulation layer 42, and the third encapsulation layer 43.

[0064] In addition to the thickness direction, in the direction parallel to the plane where the substrate 10 is located, the optical functional part 50 may similarly have a plurality of positional modes. For example, the optical functional part 50 may be provided corresponding to the first encapsulation portion 411, that is, the orthographic projection of the optical functional part 50 on the substrate 10 overlaps with the orthographic projection of the first encapsulation portion 411 on the substrate 10 and the two are provided by being bonded together. Alternatively, the plurality of first encapsulation portions 411 in the first encapsulation layer 41 may be provided at intervals, and the optical functional part 50 may be provided corresponding to the space between adjacent first encapsulation portions 411, that is, the optical functional part 50 is provided in the same layer as the first encapsulation portion 411.

[0065] In some alternative embodiments, as shown in FIG. 1, at least a part of the optical functional part 50 is located between the first encapsulation layer 41 and the second encapsulation layer 42. Of course, in other embodiments, as shown in FIG. 2, at least a part of the optical functional part 50 may be located between the second encapsulation layer 42 and the third encapsulation layer 43.

[0066] In some embodiments, the isolation structure 20 includes a first isolation portion 22 and a second isolation portion 23 that are sequentially stacked and provided along a direction away from the substrate 10. The orthographic projection of the first isolation portion 22 on the substrate 10 is located within the orthographic projection of the second isolation portion 23 on the substrate 10.

[0067] Regarding the specific dimensional shapes of the first isolation portion 22 and the second isolation portion 23, they are not limited in the embodiments of the present application. Exemplarily, the longitudinal cross-section of the isolation structure 20 may be T-shaped. Such a design helps to realize the manufacture and mutual isolation of the light-emitting structures 31 corresponding to different isolation openings 21 without the need for a fine metal mask by making it difficult for the light-emitting material to extend from the sidewall of the first isolation portion 22 to the sidewall of the second isolation portion 23 during the manufacturing process of the light-emitting functional layer 30.

[0068] Regarding the material compositions of the first isolation portion 22 and the second isolation portion 23, they are not limited in the embodiments of the present application. Both the first isolation portion 22 and the second isolation portion 23 may include a conductive material, or the first isolation portion 22 may include a conductive material and the second isolation portion 23 may include an insulating material, or both may include insulating materials.

[0069] Furthermore, in some embodiments, the display panel further includes a first electrode layer 60 provided on the side of the light-emitting functional layer 30 away from the substrate 10. The first electrode layer 60 includes a first electrode 61 provided corresponding to the isolation opening 21. The first isolation portion 22 includes a conductive material, and the first electrode 61 is provided electrically connected to the first isolation portion 22.

[0070] The first electrode 61 in the first electrode layer 60 is used to drive and control the light emission of the light-emitting structure 31. Optionally, the display panel further includes a second electrode layer 70 provided on the side facing the substrate 10 of the light-emitting functional layer 30. The first electrode layer 60 and the second electrode layer 70 are respectively provided on both sides of the light-emitting functional layer 30 in the thickness direction. The second electrode layer 70 includes a second electrode 71. The first electrode 61 and the second electrode 71 cooperate to realize the drive control for the light-emitting structure 31. The first electrode 61 may be a cathode, and the second electrode 71 may be an anode.

[0071] In the related art, the first electrode 61 is generally a planar electrode, and the orthographic projection of the first electrode 61 on the substrate 10 can cover all the light-emitting structures 31 simultaneously. In the embodiments of the present application, due to the isolation structure 20, in the manufacturing process of the display panel, the first electrode layer 60 includes a plurality of first electrodes 61, and at least some different first electrodes 61 corresponding to different light-emitting structures 31 can be separated so that the first electrodes 61 are provided corresponding to the isolation openings 21.

[0072] Note that the statement "the first electrode 61 is provided corresponding to the isolation opening 21" described in the embodiments of the present application means that the orthographic projection of the first electrode 61 on the substrate 10 and the orthographic projection of the isolation opening 21 on the substrate 10 overlap at least partially. The first electrode 61 may be completely located within the isolation opening 21, or a part of the first electrode 61 may be located within the isolation opening 21. Further, each first electrode 61 may be provided corresponding to each light-emitting structure 31, that is, the orthographic projection of a single first electrode 61 on the substrate 10 may overlap only with the orthographic projection of one light-emitting structure 31 on the substrate 10, or a single first electrode 61 may be provided corresponding to a plurality of light-emitting structures 31 simultaneously, that is, the orthographic projection of a single first electrode 61 on the substrate 10 may overlap with the orthographic projections of a plurality of light-emitting structures 31 on the substrate 10 simultaneously.

[0073] Furthermore, the first isolation portion 22 includes a conductive material, and the first electrode 61 is provided electrically connected to the first isolation portion 22, so that signal transmission can be realized and the requirement of controlling the light emission of the light-emitting structure 31 can be satisfied. The first electrode 61 may be in direct contact with the first isolation portion 22 to realize electrical connection therebetween, or the first electrode 61 may realize electrical connection with the first isolation portion 22 through other conductive structures, and the embodiments of the present application are not limited thereto.

[0074] In the embodiments of the present application, the first electrode layer 60 includes a plurality of first electrodes 61. The plurality of first electrodes 61 can realize signal transmission through the first isolation part 22. Based on this, by adjusting the first isolation part 22, electrical connection or insulation between different first electrodes 61 can be realized, thereby satisfying the partition control or independent control for different light-emitting structures 31, and having strong practicability and flexibility.

[0075] In some embodiments, as shown in FIG. 3, the isolation structure 20 further includes a third isolation part 24 provided on the side of the first isolation part 22 facing the substrate 10. The third isolation part 24 includes a conductive material and is provided electrically connected to the first isolation part 22. The orthographic projection of the first isolation part 22 on the substrate 10 is located within the orthographic projection of the third isolation part 24 on the substrate 10, and the first electrode 61 is provided to wrap around the third isolation part 24.

[0076] In addition to the first isolation part 22 and the second isolation part 23, the isolation structure 20 may further include a third isolation part 24 provided closer to the substrate 10 than the first isolation part 22 and the second isolation part 23. Also, since the third isolation part 24 can have a larger orthographic projection area on the substrate 10 than the first isolation part 22, the first electrode 61 is likely to contact the third isolation part 24, that is, the first electrode 61 can be provided to wrap around the third isolation part 24. Specifically, a part of the structure of the first electrode 61 may be provided to cover the third isolation part 24.

[0077] Furthermore, in the embodiments of the present application, the third isolation part 24 includes a conductive material and is provided electrically connected to the first isolation part 22. In this way, the first electrode 61 realizes electrical connection with the first isolation part 22 through the third isolation part 24, thereby improving the reliability of the electrical connection between the first electrode 61 and the first isolation part 22 and satisfying the requirement for the transmission of internal signals of the first electrode 61.

[0078] In some embodiments, as shown in FIGS. 1 to 3, the optical function unit 50 includes a first adjustment unit 51 provided on the side away from the substrate 10 of the second isolation unit 23, and the light reflectivity corresponding to the first adjustment unit 51 is smaller than the light reflectivity corresponding to the second isolation unit 23.

[0079] According to different usage scenarios, the second isolation unit 23 may have a composition method of a plurality of materials. Due to the influence of a certain material, the second isolation unit 23 itself has a high light reflectivity. In addition, after the external ambient light is irradiated on the second isolation unit 23 and then reflected by the second isolation unit 23, it is emitted to the light-emitting surface of the display panel together with the light from the light-emitting structure 31. In this way, the ambient light reflected by the second isolation unit 23 gives a certain interference to the display effect of the display panel.

[0080] In view of this, the embodiments of the present application add a first adjustment unit 51 on the side away from the substrate 10 of the second isolation unit 23. The first adjustment unit 51 can cover at least a part and the surface on the side away from the substrate 10 of the second isolation unit 23. Also, the first adjustment unit 51 has a lower light reflectivity than the second isolation unit 23. Therefore, the presence of the first adjustment unit 51 can reduce the corresponding ambient light reflection phenomenon at the position of the isolation structure 20, thereby contributing to the improvement of the display effect of the display panel.

[0081] In some embodiments, the first adjustment unit 51 may cover the entire surface on the side away from the substrate 10 of the second isolation unit 23, or the first adjustment unit 51 may cover only a part of the surface on the side away from the substrate 10 of the second isolation unit 23. Optionally, the orthographic projection of the first adjustment unit 51 on the substrate 10 covers the orthographic projection of the second isolation unit 23 on the substrate 10.

[0082] Furthermore, optionally, the orthographic projection of the first adjustment part 51 on the substrate 10 covers the orthographic projection of the second isolation part 23 on the substrate 10 and at least a part of the light-emitting structure 30. Also, the material composition of the first adjustment part 51 is not limited in the embodiments of the present application. If the light reflectivity corresponding to the first adjustment part 51 is lower than the light reflectivity corresponding to the second isolation part 23, the first adjustment part 51 may include a conductive material or an insulating material. Optionally, the first adjustment part 51 may include, for example, a black matrix, i.e., a light-absorbing material of a black insulating material. Compared with other materials, the black matrix contributes to absorbing more ambient light and further reducing the reflection phenomenon of ambient light generated within the display panel.

[0083] In some embodiments, as shown in FIGS. 3 and 4, the encapsulation protection layer 40 includes a first encapsulation layer 41. A part of the structure of the first encapsulation layer 41 is provided by being bonded to the isolation structure 20. The first encapsulation layer 41 includes a first portion B1 located on the side away from the substrate 10 of the second isolation part 23. At least a part of the first adjustment part 51 is located on the side away from the substrate 10 of the first portion B1 and is provided by being bonded to the first portion B1.

[0084] As can be seen from the above content, the encapsulation protection layer 40 may include a plurality of film layer structures provided in a stacked manner. The first encapsulation layer 41 is located in the film layer closest to the substrate 10 among the encapsulation protection layers 40. In the manufacturing process of the first encapsulation layer 41, due to the presence of the isolation structure 20, the first encapsulation layer 41 may include a plurality of first encapsulation parts 411 provided corresponding to the plurality of isolation openings 21. The first encapsulation parts 411 are provided by being bonded to the isolation structure 20. A part of the structure of the first encapsulation parts 411 extends to the side away from the substrate 10 of the second isolation part 23 to form the first portion B1.

[0085] Furthermore, at least a part of the first adjustment portion 51 is located on the side away from the substrate 10 of the first portion B1 and is provided by being bonded to the first portion B1. That is, at least a part of the first adjustment portion 51 may be located between the first sealing layer 41 and the second sealing layer 42. In this way, the first adjustment portion 51 may be formed after the manufacture of the first sealing layer 41, thereby reducing the manufacturing influence of the first adjustment portion 51 on the first sealing layer 41.

[0086] Also, in such a design, the first adjustment portion 51 is close to the light-emitting functional layer 30. In this way, the first adjustment portion 51 contributes to absorbing more lateral light rays from the surrounding light-emitting structures 31, thereby reducing the risk of light crosstalk occurring between different light-emitting structures 31 and contributing to the improvement of display reliability. Also, when the display panel is a flexible display panel, such a design also helps to reduce the crack risk of the corresponding film layer during folding and improve the reliability of the entire structure.

[0087] Note that during the manufacturing processes of the light-emitting functional layer 30 and the first electrode layer 60, some light-emitting materials and electrode materials (not shown) etc. fall to the side away from the substrate 10 of the second isolation portion 23. As a result, there are some light-emitting materials and electrode materials between the first portion B1 and the second isolation portion 23 in the first sealing portion 411 formed later, that is, the first portion B1 and the second isolation portion 23 are provided with a gap therebetween.

[0088] In some embodiments, the number of the isolation openings 21 is plural, the first sealing layer 41 includes a plurality of first sealing portions 411 provided corresponding to the plural isolation openings 21, and at least a part of the first portions B1 corresponding to adjacent first sealing portions 411 are provided with a gap therebetween. At least a part of the first adjustment portion 51 is located between adjacent first portions B1.

[0089] Due to the presence of the isolation structure 20, the first sealing layer 41 may include a plurality of first sealing portions 411 provided corresponding to the plural isolation openings 21 and spaced apart from each other. Specifically, there is a certain pitch between two adjacent first portions B1 in adjacent first sealing portions 411.

[0090] Furthermore, a part of the first adjustment unit 51 may be located between adjacent first parts B1, thereby contributing to the first adjustment unit 51 covering a larger area on the second isolation unit 23, thereby further reducing the light reflection phenomenon caused by the second isolation unit 23 and improving the display effect of the display panel. Optionally, the first adjustment unit 51 may include two partial structures. One part of the structure is located on the side away from the substrate 10 of the first part B1, and the other part is located between the adjacent first parts B1. Further, as shown in FIG. 5, in the thickness direction of the substrate 10, a part of the structure of the first adjustment unit 51 may be located at the same height as the first isolation unit 22.

[0091] In some embodiments, as shown in FIG. 6, the optical function unit 50 includes a second adjustment unit 52 at least partially fitted into the isolation opening 21, and the second adjustment unit 52 includes a filter unit.

[0092] Since at least a part of the second adjustment unit 52 is fitted into the isolation opening 21 and the light-emitting structure 31 is provided corresponding to the isolation opening 21, there is an area where the orthographic projection of the second adjustment unit 52 on the substrate 10 overlaps with the orthographic projection of the isolation opening 21 on the substrate 10. Further, at least some of the light rays emitted by the light-emitting structure 31 can irradiate the isolation opening 21.

[0093] Furthermore, the second adjustment unit 52 can adjust the light rays generated by the light-emitting structure 31 and contribute to improving the display effect of the display panel. The second adjustment unit 52 may have a plurality of forms. Further, the second adjustment unit 52 may include a filter unit that improves the display accuracy of the display panel by performing a filtering action on the light rays generated by the light-emitting structure 31. For example, it may be a red filter unit, a blue filter unit, or a green filter unit. Alternatively, in some other embodiments, the second adjustment unit 52 may include a high-refractive-index or low-refractive-index material, thereby changing the emission angle of the light rays by the light-emitting structure 31 to expand or reduce the observable angle of the display panel, and realizing the effect of observing a wide viewing angle or improving confidentiality.

[0094] Note that, according to the usage needs of the display panel, only the first adjustment part 51 may be provided inside the display panel, or only the second adjustment part 52 may be provided, or both the first adjustment part 51 and the second adjustment part 52 may be provided at the same time. The embodiments of the present application do not limit this.

[0095] In some embodiments, the second adjustment part 52 includes a first surface away from the substrate 10, and the first surface has the same height as the plane where the substrate 10 is located.

[0096] In the embodiments of the present application, by means such as nano-processing technology and ashing process, a planarization process can be performed on the surface of the second adjustment part 52 away from the substrate 10 so that the first surface has the same height as the plane where the substrate 10 is located. In this way, by improving the flatness of the surface of the second adjustment part 52, the manufacturing difficulty of other subsequent film layers of the second adjustment part 52 is reduced. Further optionally, the first surface has the same height as the surface of the first part B1 away from the substrate 10.

[0097] In some embodiments, the sealing and protecting layer 40 includes a first sealing layer 41, the first sealing layer 41 includes first sealing parts 411 respectively provided in the isolation openings 21, and the second adjustment part 52 is located on the side of the first sealing parts 411 away from the substrate 10.

[0098] A part of the second adjustment part 52 is located on the side of the first sealing parts 411 away from the substrate 10. Here, the second adjustment part 52 may be provided by being bonded to the first sealing parts 411, or the second adjustment part 52 may be provided at a distance from the first sealing parts 411 in the thickness direction. The embodiments of the present application are not limited thereto.

[0099] In the embodiments of the present application, the second adjustment part 52 may be located on the side of the first sealing parts 411 away from the substrate 10. In this way, the second adjustment part 52 may be formed after the manufacture of the first sealing layer 41, thereby reducing the manufacturing influence of the second adjustment part 52 on the first sealing layer 41. Further optionally, the second adjustment part 52 is provided by being bonded to the first sealing parts 411.

[0100] Furthermore, referring to FIGS. 6 and 7, in some embodiments, the isolation structure 20 includes a first isolation portion 22 and a second isolation portion 23 that are sequentially stacked and provided along a direction away from the substrate 10, and a front projection of the first isolation portion 22 on the substrate 10 is located within a front projection of the second isolation portion 23 on the substrate 10.

[0101] The first encapsulation portion 411 includes a second portion B2 provided by being bonded to the first isolation portion 22, a third portion B3 provided by being bonded to the second isolation portion 23, and a fourth portion B4 connected to the second portion B2 to cover the light-emitting structure 31. The third portion B3 and the fourth portion B4 are spaced apart in the thickness direction to form a gap space A, and at least a part of the second adjustment portion 52 is located on a side away from the substrate 10 of the gap space A.

[0102] The first encapsulation portion 411 may include a first portion B1, a second portion B2, a third portion B3, and a fourth portion B4. Here, the fourth portion B4 is provided to cover the light-emitting structure 31, the second portion B2 is provided by being bonded to the first isolation portion 22 and connected to the fourth portion B4, the third portion B3 is provided by being bonded to the second isolation portion 23 and connected to the second portion B2, and the first portion B1 is located on a side away from the substrate 10 of the second isolation portion 23 and connected to the third portion B3.

[0103] As can be seen from FIG. 6, a gap space A is formed between the third part B3 and the fourth part B4. The presence of the gap space A poses a risk that the first sealing portion 411 may be etched. Specifically, taking the example that the red light-emitting structure is manufactured before the green light-emitting structure, in the manufacturing process, first, the red light-emitting structure, the corresponding first electrode 61, and the first sealing portion 411 are first formed in each isolation opening 21. Next, the red light-emitting structure, the corresponding first electrode 61, and the first sealing portion 411 at the corresponding positions of some of the isolation openings 21 are selectively removed. Thereafter, the green light-emitting structure, the corresponding first electrode 61, and the first sealing portion 411 are formed in each isolation opening 21. In this way, the red light-emitting structure, the green light-emitting structure, and the first electrode 61 and the first sealing portion 411 provided corresponding to each of them exist simultaneously at the corresponding positions of the isolation openings 21. Finally, the green light-emitting structure, the corresponding first electrode 61, and the first sealing portion 411 at the corresponding positions of some of the isolation openings 21 are selectively removed.

[0104] However, in the process of removing the green light-emitting structure, since the red light-emitting structure and the green light-emitting structure exist simultaneously at the positions corresponding to some of the isolation openings 21, the etching gas for removing the first sealing portion 411 on the side away from the substrate 10 of the green light-emitting structure easily penetrates into the gap space A, and it is likely that some structures in the first sealing portion 411 corresponding to the red light-emitting structure are easily etched away. In serious cases, some structures of the first electrode 61 covered by the first sealing portion 411 corresponding to the red light-emitting structure are exposed. Moreover, in the process of removing the green light-emitting structure by a wet process, the chemical solution may penetrate into the gap space A and contact the first electrode 61, affecting the structural reliability of the first electrode 61.

[0105] In addition to the second adjustment part 52 in the embodiment of the present application being able to perform a light ray adjustment function, at least a part of the second adjustment part 52 is provided on the side away from the substrate 10 of the gap space A, that is, the second adjustment part 52 may be provided to cover the gap space A. Therefore, due to the presence of the second adjustment part 52, the probability of etching gas, chemical solution, etc. entering the gap space A during the manufacturing process can be reduced, the risk of damage to the first sealing part 411 and the first electrode 61 can be reduced, and the manufacturing yield and overall reliability of the display panel can be improved.

[0106] In addition, according to the difference in the actual manufacturing situation, a part of the second adjustment part 52 may be located in the gap space, or the second adjustment part 52 may be completely located outside the gap space A. Specifically, depending on the difference in the dimensions of the isolation structure 20 in the thickness direction of the substrate 10, the third part B3 and the fourth part B4 in the first sealing layer 41 formed subsequently may be integrally connected or separated from each other. As shown in FIG. 8, when the third part B3 and the fourth part B4 are integrally connected, the second adjustment part 52 cannot enter the gap space A and is completely located on the side away from the substrate 10 of the gap space. As shown in FIG. 7, when the third part B3 and the fourth part B4 are provided separately, a part of the second adjustment part 52 may enter the gap space A. Optionally, a part of the second adjustment part 52 is located in the gap space A.

[0107] Also, as can be seen from FIG. 5, when the first adjustment part 51 exists in the display panel and the orthographic projection of the first adjustment part 51 on the substrate 10 covers a part of the orthographic projection of the light-emitting structure 30 on the substrate 10, the first adjustment part 51 similarly contributes to preventing etching gas, chemical solution, etc. from entering the gap space A, reducing the risk of damage to the first sealing part 411 and the first electrode 61, and improving the manufacturing yield and overall reliability of the display panel.

[0108] In some embodiments, as shown in FIG. 9, the optical functional unit 50 further includes a first adjustment unit 51, and at least a part of the orthographic projection of the first adjustment unit 51 on the substrate 10 is located between the orthographic projections of the adjacent second adjustment unit 52 on the substrate 1. The first adjustment unit 51 includes a light absorption material and may selectively include a black matrix.

[0109] In the embodiments of the present application, the optical functional unit 50 simultaneously includes a first adjustment unit 51 and a second adjustment unit 52, and the orthographic projections of the first adjustment unit 51 and the second adjustment unit 52 on the substrate 10 can be distributed in a shifted manner. The second adjustment unit 52 is provided corresponding to the light-emitting structure 31. So as to improve the display effect of the display panel, the second adjustment unit 52 can adjust at least a part of the light rays emitted from the light-emitting structure 31. The first adjustment unit 51 may be provided corresponding to the second isolation part 23 in the isolation structure 20. Since the first adjustment unit 51 includes a light absorption material, at least a part of the first adjustment unit 51 can absorb the external ambient light irradiated on the second isolation part 23, thereby reducing the light reflection phenomenon corresponding to the second isolation part 23 and similarly contributing to the improvement of the display effect of the display panel.

[0110] Furthermore, the specific positional relationship between the first adjustment unit 51 and the second adjustment unit 52 is not limited in the embodiments of the present application. Optionally, as shown in FIG. 9, the encapsulation protection layer 40 includes a second encapsulation layer 42 located on the side away from the substrate 10 of the first encapsulation layer 41, and at least a part of both the first adjustment unit 51 and the second adjustment unit 52 is located between the first encapsulation layer 41 and the second encapsulation layer 42.

[0111] With such a design, both the first adjustment unit 51 and the second adjustment unit 52 can be manufactured after the first encapsulation layer 41 is completed, reducing the influence of the first adjustment unit 51 and the second adjustment unit 52 on the manufacturing process of the first encapsulation layer 41. Also, since at least a part of both of them is located between the first encapsulation layer 41 and the second encapsulation layer 42, both of them can be formed and manufactured respectively in adjacent manufacturing processes, contributing to the improvement of the reliability of their relative positions.

[0112] Of course, in other embodiments, the second adjustment part 52 may be located between the first sealing layer 41 and the second sealing layer 42, and the first adjustment part 51 may be located between the second sealing layer 42 and the third sealing layer 43. Alternatively, in other embodiments, the first adjustment part 51 may be located between the first sealing layer 41 and the second sealing layer 42, and the second adjustment part 52 may be located between the second sealing layer 42 and the third sealing layer 43.

[0113] Furthermore, in some embodiments, the isolation structure 20 includes a first isolation part 22 and a second isolation part 23 that are sequentially stacked along a direction away from the substrate 10, and the orthographic projection of the first isolation part 22 on the substrate 10 is located within the orthographic projection of the second isolation part 23 on the substrate 10.

[0114] The first sealing part 411 includes a second part B2 provided by bonding to the first isolation part 22, a third part B3 provided by bonding to the second isolation part 23, and a fourth part B4 connected to the second part B2 and covering the light-emitting structure 31. A gap space A is formed between the third part B3 and the fourth part B4 with a gap in the thickness direction, and at least a part of the first adjustment part 51 is located on the side away from the substrate 10 of the gap space A.

[0115] In addition to playing a role in reducing the reflection of light rays, at least a part of the first adjustment part 51 in the embodiment of the present application is provided on the side away from the substrate 10 of the gap space A. That is, the first adjustment part 5 may be provided to cover the gap space A. Therefore, due to the presence of the first adjustment part 51, the probability of etching gas, chemical solution, etc. entering the gap space A during the manufacturing process can be reduced, the risk of damage to the first sealing part 411 and the first electrode 61 can be reduced, and the manufacturing yield and overall reliability of the display panel can be improved. Furthermore, optionally, a part of the first adjustment part 51 is located within the gap space A.

[0116] In a second aspect, referring to FIG. 10, the embodiment of the present application provides a display device including the display panel in any of the above embodiments.

[0117] Note that the display device according to the embodiment of the present application has the beneficial effects of the display panel in any of the above embodiments. For specific details, refer to the description of the beneficial effects of the above display panel, and the description is omitted in the embodiments of the present application.

[0118] In a third aspect, referring to FIGS. 11 and 12, an embodiment of the present application provides a method for manufacturing a display panel including the following steps.

[0119] In step S100, an isolation structure is formed on one side of the substrate.

[0120] Referring to FIG. 12a, in step S100, a plurality of isolation openings 21 are formed surrounded by the isolation structure 20. Since the isolation structure 20 is provided, in subsequent steps, the manufacture of the light-emitting structure and the first electrode can be realized without the need for a fine metal mask. The structural size of the isolation structure 20 is not limited in the embodiments of the present application. Exemplarily, the isolation structure 20 may include a first isolation portion 22, a second isolation portion 23, and a third isolation portion 24 provided in a stacked manner.

[0121] In step S110, a first light-emitting material layer, a first encapsulation material layer, and an optical functional material layer are sequentially formed on one side of the substrate.

[0122] Referring to FIG. 12b, in step S110, the first light-emitting material layer 31a' is used to form the first light-emitting structure 31a. The first light-emitting structure 31a is a light-emitting structure 31 that emits light of a specific color. The optical functional material layer 50' is used to form the optical functional unit 50. The optical functional unit 50 may have various forms. For example, the optical functional unit 50 may be used to adjust the light emitted from the light-emitting structure 31, or the optical functional unit 50 may be used to adjust the external ambient light incident inside the display panel. The optical functional unit 50 may include a plurality of types of structures. For example, the optical functional unit 50 may include a first adjustment unit 51 and a second adjustment unit 52. Above this, in step S110, only the first adjustment unit 51 may be formed, or only the second adjustment unit 52 may be formed, or the first adjustment unit 51 and the second adjustment unit 52 may be formed simultaneously. Note that the figure shows the case where the optical functional unit 50 includes the second adjustment unit 52.

[0123] The first encapsulation material layer 411' is used to form the first encapsulation portion 411. Both the first light-emitting structure 31a and the first encapsulation portion 411 are provided corresponding to the isolation opening 21. The orthographic projection of the optical functional unit 50 on the substrate 10 overlaps with the orthographic projection of at least one of the first light-emitting structure 31a and the isolation structure 20 on the substrate 10.

[0124] Furthermore, since the optical functional material layer 50' is located on the side away from the substrate 10 of the first encapsulation material layer, the optical functional material layer can play a certain protective role for the first encapsulation material layer, reducing the risk that a part of the structure to be left in the first encapsulation portion 411 is etched away in subsequent steps.

[0125] In step S120, a part of the optical functional material layer is removed, and the first encapsulation material layer and the first light-emitting material layer corresponding to the positions of a part of the isolation openings are removed.

[0126] Referring to FIG. 12c, in step S120, the first encapsulation material layer 411' and the first light-emitting material layer 31a' corresponding to the positions of some of the optical functional material layers 50' and the isolation openings 21 are removed. Thereby, a first light-emitting structure 31a, a first encapsulation portion 411, and an optical functional portion 50 are formed at positions corresponding to the other isolation openings 21. The first light-emitting structure 31a and the first encapsulation portion 411 are provided corresponding to the isolation openings 21, and the orthographic projection of the optical functional portion 50 on the substrate 10 overlaps with the orthographic projection of at least one of the first light-emitting structure 31a and the isolation structure 20 on the substrate 10.

[0127] In some embodiments, the optical functional material layer comprises a second adjustment material layer.

[0128] Referring to FIGS. 12b and 12c, in step S120, by removing the first light-emitting material layer 31a', the first encapsulation material layer 411', and the second adjustment material layer 52' corresponding to the positions of the isolation openings 21, a first light-emitting structure 31a, a first encapsulation portion 411, and a second adjustment portion 52 are formed at positions corresponding to the other isolation openings, and at least a part of the second adjustment portion 52 is located within the isolation openings 21. Optionally, the second adjustment portion 52 comprises a filter portion.

[0129] In the embodiments of the present application, the second adjustment portion 52 can not only play a role in adjusting light rays, but also play a role of isolation reservation for the first light-emitting structure 31a and the first encapsulation portion 411 that need to be reserved in the manufacturing process of the display panel. Without the need to add a sacrificial layer, it meets the etching requirements of step S120, simplifies the manufacturing process of the display panel, and contributes to improving the manufacturing efficiency.

[0130] In some embodiments, referring to FIGS. 13 and 14, after step S120, the following steps are further included.

[0131] In step S130, the second adjustment portion is thinned.

[0132] Referring to FIG. 14, in step S130, by thinning the second adjusting part 52, the surface of the second adjusting part 52 on the side away from the substrate 10 is made parallel to the plane where the substrate 10 is located. That is, by thinning, the flatness of the surface of the second adjusting part 52 on the side away from the substrate 10 is improved, and the subsequent manufacturing of the film layer structure can be carried out.

[0133] Also, the second adjusting part 52 is simply thinned. That is, some structures of the second adjusting part 52 still exist in the isolation opening 21. In this way, in the subsequent manufacturing process, the influence of etching on the first sealing part 411, the first electrode 61, etc. caused by the second adjusting part 52 is reduced, which helps to improve the manufacturing reliability of the display panel.

[0134] Referring to FIGS. 15 and 16, in some embodiments, after step S120, the following steps are further included.

[0135] In step S140, a first adjusting part is formed on the side of the isolation structure away from the substrate.

[0136] Referring to FIG. 16, in step S140, the isolation structure 20 includes a first isolation part 22 and a second isolation part 23 which are sequentially stacked along the direction away from the substrate 10. The orthographic projection of the first isolation part 22 on the substrate 10 is located within the orthographic projection of the second isolation part 23 on the substrate 10, and the light reflectivity corresponding to the first adjusting part 51 is smaller than the light reflectivity corresponding to the second isolation part 23. Optionally, the second adjusting part 52 includes a filter part.

[0137] It should be noted that the first adjusting part 51 is not manufactured and formed simultaneously with the first light-emitting structure 31a, the first sealing part 411, etc. Instead, it is manufactured after the manufacturing of the first light-emitting structure 31a is completed. Further, when the display panel includes a plurality of types of light-emitting structures 31 for emitting light of different colors, the first adjusting part 51 can be manufactured and formed after the manufacturing of all the light-emitting structures 31 is completed.

[0138] Further, selectively, referring to FIGS. 17 and 18, after step S140, the following steps are further included.

[0139] In step S150, a second sealing layer and a third sealing layer are formed on the side away from the substrate of the second adjusting portion.

[0140] In some embodiments, the optical functional material layer 50' includes a first adjusting material layer.

[0141] Referring to FIG. 19, in step S120, the first adjusting material layer corresponding to the positions of all the isolation openings, and the first sealing material layer 411' and the first light-emitting material layer 31a' corresponding to the positions of some of the isolation openings are removed.

[0142] In the embodiments of the present application, both the first adjusting material layer and the first sealing material layer 411' may have a full-surface structure. The first adjusting material layer corresponding to the positions of all the isolation openings 21 is removed, and the first sealing material layer 411' and the first light-emitting material layer 31a' corresponding to the positions of some of the isolation openings 21 are removed. Thereby, the first light-emitting structure 31a, the first sealing portion 411, and the first adjusting portion 51 can be formed at positions corresponding to the other isolation openings 21. At least a part of the first adjusting portion 51 is located on the side away from the substrate 10 of the isolation structure 20. Optionally, the first adjusting portion 51 includes a black matrix.

[0143] It should be noted that the first adjusting material layer within all the isolation openings 21 is removed, but a part of the first adjusting material layer may be left within the isolation openings 21 as needed. Optionally, in other isolation openings 21, at least a part of the first adjusting portion 51 is located within the isolation openings 21, and the first adjusting portion 51 located within the isolation openings 21 is connected to the first adjusting portion 51 located on the side away from the substrate 10 of the isolation structure 20.

[0144] Referring to FIGS. 20 and 21, the manufacturing method further includes the following steps.

[0145] In step S160, a second light-emitting material layer, a first sealing material layer, and an optical functional material layer are sequentially formed on one side of the substrate.

[0146] Referring to FIG. 21a, in step S160, a part of the structure of the second light-emitting material layer 31b', the first encapsulation material layer 411' and the optical functional material layer 50' is located on the side away from the substrate 10 of the first light-emitting structure 31a. The second light-emitting material layer 31b' is used to form the second light-emitting structure 31b, and the first light-emitting structure 31a and the second light-emitting structure 31b are used to emit light of different colors. The first light-emitting structure 31a and the second light-emitting material layer 31b' are simultaneously present at corresponding positions within some of the isolation openings 21, and in subsequent steps, it is necessary to etch and remove the second light-emitting material layer 31b' at the position corresponding to the isolation opening 21 so that only the first light-emitting structure 31a remains at the position corresponding to the isolation opening 21.

[0147] In step S170, a part of the optical functional material layer is removed, the first encapsulation material layer and the second light-emitting material layer corresponding to the positions of some of the isolation openings are removed, and the optical functional material layer and the second light-emitting material layer located on the side away from the substrate of the first light-emitting structure are removed.

[0148] Referring to FIG. 21b, in step S170, the second light-emitting structure 31b and the first encapsulation portion 411 can be formed at positions corresponding to other isolation openings 21, and the optical functional portion 50 can be formed. The first light-emitting structure 31a and the second light-emitting structure 31b emit light of different colors.

[0149] It should be noted that the first light-emitting structure 31a and the second light-emitting structure 31b are light-emitting structures for emitting different light rays. Optionally, the first light-emitting structure 31a and the second light-emitting structure 31b are respectively used to emit two different colors of light among red light, blue light and green light. Further optionally, in addition to the first light-emitting structure 31a and the second light-emitting structure 31b, a third light-emitting structure that emits different light may be further provided, and the manufacturing method of the third light-emitting structure is performed according to the above steps, and the embodiments of the present application do not limit this.

[0150] The embodiments disclosed in this application are as described above. However, the described content is the embodiments adopted for facilitating the understanding of this application and does not limit the present invention. Those skilled in the art can make any modifications and changes in the embodiments and details without departing from the spirit and scope disclosed in this application. The protection scope of this application shall follow the scope defined by the appended claims.

[0151] The above description is merely specific embodiments of the present invention. For the sake of convenience and brevity of description, for the replacement of other connection methods mentioned above, the corresponding process in the embodiments of the foregoing method can be referred to and will not be described here as it is obvious to those skilled in the art. The protection scope of this application is not limited thereto. It should be understood that those skilled in the art can easily think of various equivalent modifications or replacements that should be covered by the protection scope of this application within the technical scope disclosed in this application.

Description of Reference Numerals

[0152] 10 Substrate 20 Isolation structure 21 Isolation opening 22 First isolation part 23 Second isolation part 24 Third isolation part 30 Light-emitting functional layer 31 Light-emitting structure 31a First light-emitting structure 31b Second light-emitting structure 40 Encapsulation protection layer 41 First encapsulation layer 411 First encapsulation part 42 Second encapsulation layer 43 Third encapsulation layer 50 Optical functional part 51 First adjustment part 52 Second adjustment part 60 First electrode layer 61 First electrode 70 Second electrode layer 71 Second electrode 50’ Optical functional material layer 52' Second adjustment material layer 411' First sealing material layer 31a' First light-emitting material layer 31b' Second light-emitting material layer B1 First part B2 Second part B3 Third part B4 Fourth part A Gap space X Thickness direction

Claims

1. A display panel, A substrate; an isolation structure disposed on one side of the substrate and surrounding the isolation structure to form a number of isolation openings; a light-emitting functional layer provided on one side of the substrate and including a light-emitting structure provided in correspondence with the isolation opening; a sealing protection layer including a first sealing layer provided on a side of the light emitting functional layer away from the substrate, the first sealing layer having a plurality of first sealing portions provided in the plurality of isolation openings, respectively; an optical function unit including a second adjustment unit, the second adjustment unit being located on a side of the first sealing unit that is away from the substrate and at least a portion of the second adjustment unit being fitted in the isolation opening, the second adjustment unit including a filter unit; A display panel comprising:

2. The optical function unit further includes a first adjustment unit, at least a part of the orthogonal projection of the first adjustment unit on the substrate is located between the orthogonal projection of the adjacent second adjustment unit on the substrate, and the first adjustment unit includes a light absorbing material; The first adjustment portion includes a black matrix.

2. The display panel according to claim 1 .

3. the sealing protection layer further includes a second sealing layer located on a side of the first sealing layer away from the substrate, and at least a portion of each of the first adjustment unit and the second adjustment unit is located between the first sealing layer and the second sealing layer; The sealing protection layer further comprises a third sealing layer located on a side of the second sealing layer away from the substrate.

3. The display panel according to claim 2.

4. the isolation structure includes a first isolation portion and a second isolation portion that are stacked in order along a direction away from the substrate, and an orthogonal projection of the first isolation portion on the substrate is located within an orthogonal projection of the second isolation portion on the substrate.

2. The display panel according to claim 1 .

5. A display panel, A substrate; an isolation structure disposed on one side of the substrate and surrounding the isolation structure to form a plurality of isolation openings; a light-emitting functional layer provided on one side of the substrate and including a light-emitting structure provided in correspondence with the isolation opening; a sealing protection layer provided on a side of the light emitting functional layer away from the substrate, the sealing protection layer having a portion fitted in the isolation opening; an optical function portion provided in the sealing protection layer; An orthogonal projection of the optical function portion on the substrate is provided to overlap with an orthogonal projection of at least one of the isolation structure and the light emitting structure on the substrate. A display panel characterized by:

6. the sealing protection layer includes a first sealing layer, a second sealing layer, and a third sealing layer that are stacked in this order along a direction away from the substrate, the first sealing layer includes a plurality of first sealing portions provided in the plurality of isolation openings, At least a part of the optical function unit is located between the first sealing layer and the second sealing layer, or At least a part of the optical function unit is located between the second sealing layer and the third sealing layer.

6. The display panel according to claim 5.

7. the isolation structure includes a first isolation portion and a second isolation portion that are stacked in order along a direction away from the substrate, and an orthogonal projection of the first isolation portion on the substrate is located within an orthogonal projection of the second isolation portion on the substrate; the display panel further includes a first electrode layer provided between the light-emitting functional layer and the sealing protective layer, the first electrode layer including a first electrode provided in correspondence with the isolation opening; The first isolation portion includes a conductive material, and the first electrode is provided in electrical connection with the first isolation portion.

6. The display panel according to claim 5.

8. the optical function unit includes a first adjustment unit provided on a side of the second isolation unit away from the substrate, a light reflectance corresponding to the first adjustment portion is smaller than a light reflectance corresponding to the second isolation portion; the first adjustment portion includes a black matrix; An orthogonal projection of the first adjustment portion on the substrate covers an orthogonal projection of the second isolation portion on the substrate.

8. The display panel according to claim 7.

9. The orthogonal projection of the first adjustment portion on the substrate covers the orthogonal projection of the second isolation portion on the substrate and at least a part of the light emitting structure; the sealing protection layer includes a first sealing layer, a portion of the first sealing layer is bonded to the isolation structure, and the first sealing layer includes a first portion located on a side of the second isolation portion away from the substrate; at least a portion of the first adjustment unit is located on a side of the first portion that is away from the substrate, and is bonded to the first portion; the number of the isolation openings is plural, the first sealing layer includes a plurality of first sealing portions provided corresponding to the plurality of isolation openings, and the first portions corresponding to at least some of the adjacent first sealing portions are provided at intervals; At least a portion of the first adjustment portion is located between adjacent first portions.

9. The display panel according to claim 8.

10. the optical function unit includes a first adjustment unit provided on a side of the isolation structure away from the substrate, the first adjustment portion includes a black matrix; An orthogonal projection of the first adjustment portion on the substrate covers an orthogonal projection of the isolation structure on the substrate; 6. The display panel according to claim 5.

11. the optical function unit includes a second adjustment unit, at least a portion of the second adjustment unit is fitted in the isolation opening, and the second adjustment unit includes a filter unit; 11. The display panel according to claim 5, wherein the first and second electrodes are arranged in a first direction.

12. The sealing protection layer includes a first sealing layer, the first sealing layer includes first sealing portions each provided in the isolation opening; the second adjustment portion is located on a side of the first sealing portion that is away from the substrate, The second adjustment portion is provided by being bonded to the first sealing portion, the isolation structure includes a first isolation portion and a second isolation portion that are stacked in order along a direction away from the substrate, and an orthogonal projection of the first isolation portion on the substrate is located within an orthogonal projection of the second isolation portion on the substrate; the first sealing portion includes a second portion bonded to the first isolation portion, a third portion bonded to the second isolation portion, and a fourth portion connected to the second portion and covering the light emitting structure; the third portion and the fourth portion are spaced apart in a thickness direction of the substrate to form a gap space, and at least a portion of the second adjustment portion is located on a side of the gap space that is away from the substrate, A portion of the second adjustment portion is located within the gap space.

12. The display panel according to claim 11.

13. A display device comprising the display panel according to claim 1 .

14. A method for manufacturing a display panel, comprising the steps of: forming an isolation structure on one side of a substrate, the isolation structure surrounding the isolation structure forming a plurality of isolation openings; forming a first light emitting material layer, a first sealing material layer and an optically functional material layer in sequence on one side of the substrate; a part of the optical functional material layer is removed, and a part of the first sealing material layer and the first light emitting material layer corresponding to the position of the isolation opening are removed to form a first light emitting structure and a first sealing portion at a position corresponding to the other isolation opening, and an optical functional portion is formed, the first light emitting structure and the first sealing portion are provided corresponding to the isolation opening, and an orthogonal projection of the optical functional portion on the substrate is provided to overlap an orthogonal projection of at least one of the first light emitting structure and the isolation structure on the substrate; A method for manufacturing a display panel comprising the steps of:

15. The optical functional material layer includes a second adjustment material layer, in the step of removing the part of the optical functional material layer and removing the first sealing material layer and the first light emitting material layer corresponding to the positions of the isolation openings, the first light emitting material layer, the first sealing material layer, and the second adjustment material layer corresponding to the positions of the isolation openings are removed to form a first light emitting structure, a first sealing portion, and a second adjustment portion at positions corresponding to the other isolation openings; At least a portion of the second adjustment portion is located within the isolation opening, After the step of removing a part of the optically functional material layer and removing the first sealing material layer and the first light emitting material layer corresponding to the position of a part of the isolation opening, a first adjustment portion is formed on a side of the isolation structure away from the substrate, the isolation structure includes a first isolation portion and a second isolation portion which are stacked in order along a direction away from the substrate, an orthogonal projection of the first isolation portion on the substrate is located within an orthogonal projection of the second isolation portion on the substrate, and a light reflectance corresponding to the first adjustment portion is smaller than a light reflectance corresponding to the second isolation portion, the second adjustment unit includes a filter unit, and / or the first adjustment unit includes a black matrix; and forming a second sealing layer and a third sealing layer on a side of the second adjustment portion away from the substrate of the isolation structure after forming the first adjustment portion on the side of the isolation structure away from the substrate. The method for manufacturing a display panel according to claim 14 .

16. The optical functional material layer comprises a first adjustment material layer, in the step of removing the part of the optical functional material layer and removing the first sealing material layer and the first light emitting material layer corresponding to the positions of some of the isolation openings, the first adjustment material layer corresponding to all of the isolation openings is removed, and parts of the first sealing material layer and the first light emitting material layer corresponding to the isolation opening positions are removed to form a first light emitting structure, a first sealing portion, and a first adjustment portion at positions corresponding to other of the isolation openings, and in the other of the isolation openings, at least a part of the first adjustment portion is located on a side of the isolation structure away from the substrate, The first adjustment portion includes a black matrix. The method for manufacturing a display panel according to claim 14 .

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