Display panel and display device

Abstract

The application provides a display panel and a display device. The display panel has a first area and a second area surrounding the first area. The display panel comprises a substrate, an isolation structure, a light-emitting functional layer, a first electrode layer and a first signal line. The isolation structure is arranged on one side of the substrate. The isolation structure is enclosed to form a plurality of opening structures arranged at intervals. The light-emitting functional layer is arranged on one side of the substrate and located in the first area. The light-emitting functional layer comprises a plurality of light-emitting structures arranged in the opening structures. The first electrode layer is arranged on the side of the light-emitting functional layer away from the substrate. The first electrode layer comprises a first electrode arranged in the opening structures and electrically connected with the isolation structure. The first signal line is located on one side of the isolation structure along a first direction. The first signal line is arranged in electrical connection with the isolation structure, so that the power signal provided by the first signal line is transmitted to the first electrode through the isolation structure. The first direction is parallel to the plane in which the substrate is located.

Description

Technical Field

[0001] This application relates to the field of display device technology, and more particularly to a display panel and display device. Background Technology

[0002] Organic light-emitting diode (OLED) display panels and display panels using light-emitting diode (LED) devices are widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body and wide range of applications, becoming the mainstream of display devices. Summary of the Invention

[0003] This application provides a display panel and display device that can reduce bezel size.

[0004] In a first aspect, embodiments of this application provide a display panel having a first region and a second region surrounding the first region. The display panel includes a substrate, an isolation structure, a light-emitting functional layer, a first electrode layer, and a first signal line. The isolation structure is disposed on one side of the substrate and located in the first region, and the isolation structure encloses and forms a plurality of spaced-apart opening structures. The light-emitting functional layer is disposed on one side of the substrate and located in the first region, and the light-emitting functional layer includes a plurality of light-emitting structures disposed in the plurality of opening structures, with at least one light-emitting structure in each opening structure.

[0005] A first electrode layer is disposed on the side of the light-emitting functional layer away from the substrate. The first electrode layer includes a first electrode disposed within the opening structure and electrically connected to the isolation structure. A first signal line is located on one side of the isolation structure along a first direction and is electrically connected to the isolation structure to transmit a power signal to the first electrode via the isolation structure. The first direction is parallel to the plane of the substrate.

[0006] In some embodiments, the isolation structure includes a first isolation portion and a second isolation portion stacked sequentially along a direction away from the substrate, wherein the orthographic projection of the first isolation portion onto the substrate is located within the orthographic projection of the second isolation portion onto the substrate.

[0007] In some embodiments, the first isolation portion includes a conductive material, and the first electrode is electrically connected to the first isolation portion.

[0008] In some embodiments, at least a portion of the first signal line is in contact with the first isolation portion.

[0009] In some embodiments, the isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, the third isolation portion comprising a conductive material and electrically connected to the first isolation portion.

[0010] In some embodiments, the first electrode is overlapped with the third isolation portion.

[0011] In some embodiments, the second isolation portion includes a conductive material.

[0012] In some embodiments, the first isolation section and the second isolation section are electrically connected, and at least a portion of the first signal line is in contact with the second isolation section.

[0013] In some embodiments, the isolation structure further includes a first insulating portion disposed between the first isolation portion and the second isolation portion.

[0014] In some embodiments, the etching selectivity ratio of the first isolation portion relative to the second isolation portion is greater than 1.

[0015] In some embodiments, the display panel further includes a driver chip disposed in the second area and located on one side of the isolation structure along the first direction, and the first signal line is electrically connected to the driver chip.

[0016] In some embodiments, the second region includes a first partition and a second partition located between the driver chip and the isolation structure. The first partition and the second partition are arranged side by side in a second direction, and the first direction intersects the second direction. The first signal line located in the first partition is insulated from the first signal line located in the second partition.

[0017] In some embodiments, the isolation structure includes a first isolation structure and a second isolation structure that are insulated from each other. The first isolation structure and the second isolation structure are located in different partitions of a first region. The first isolation structure and the second isolation structure have different resistances in the same projected area. Different first signal lines are electrically connected to the first isolation structure and the second isolation structure, respectively.

[0018] In some embodiments, the first isolation structure and the second isolation structure have different projected areas on the substrate; and / or, the first isolation structure and the second isolation structure have different cross-sectional dimensions.

[0019] In some embodiments, the first isolation structure and the second isolation structure are spaced apart.

[0020] In some embodiments, the isolation structure further includes an insulating structure located between the first isolation structure and the second isolation structure.

[0021] In some embodiments, the display panel further includes a first encapsulation layer disposed on the side of the first electrode layer away from the substrate, the first encapsulation layer including a plurality of first encapsulation portions disposed within the opening structure.

[0022] In some embodiments, the display panel further includes a second encapsulation layer located on the side of the first encapsulation layer opposite to the substrate, and a third encapsulation layer located on the side of the second encapsulation layer opposite to the substrate.

[0023] In some embodiments, both the first encapsulation layer and the third encapsulation layer comprise inorganic materials.

[0024] In some embodiments, the display panel further includes a blocking portion disposed in the second region, wherein the orthographic projection of the blocking portion on the substrate is offset from the orthographic projection of the first signal line on the substrate.

[0025] In some embodiments, the first encapsulation layer and the blocking portion do not overlap on the orthographic projection of the substrate.

[0026] In some embodiments, the third encapsulation layer is located on the side of the barrier portion away from the substrate and covers at least a portion of the structure of the barrier portion.

[0027] In some embodiments, the display panel further includes a gate driving circuit located in the second region, with a blocking portion at least partially located on the side of the gate driving circuit away from the substrate, or the blocking portion being adjacent to the gate driving circuit.

[0028] In some embodiments, the display panel further includes a second insulating portion located between the blocking portion and the gate driving circuit.

[0029] In some embodiments, the display panel further includes a pixel definition layer disposed on the side of the isolation structure facing the substrate. The pixel definition layer includes a pixel defining portion and a pixel opening formed by the pixel defining portion, and the light-emitting structure is at least partially located within the pixel opening.

[0030] In some embodiments, the pixel definition layer portion is located on the side of the blocking portion away from the substrate.

[0031] Secondly, embodiments of this application provide a display device, including the display panel in any of the foregoing embodiments.

[0032] This application provides a display panel and display device. The first signal line is not directly connected to the first electrodes, but instead transmits power signals to each of the first electrodes via an isolation structure. Specifically, since the isolation structure itself is positioned corresponding to each of the first electrodes, and signal transmission can be achieved between them, it is unnecessary to extend the first signal line to the location of each first electrode. That is, the first signal line does not need to be arranged around each first electrode. Instead, the first signal line is positioned along a first direction on one side of the isolation structure and electrically connected to it. In this way, the power signal located within the first signal line can be transmitted to each of the first electrodes via the isolation structure, thus satisfying the signal transmission requirements. Furthermore, since the first signal line is only located along the first direction on one side of the isolation structure, rather than in a loop, it helps to reduce the bezel size of the display panel and improve the display effect. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0035] Figure 2 yes Figure 1 A schematic diagram showing the relative positional relationship between the isolation structure at point Q in the central region and the first signal line;

[0036] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0037] Figure 4 This is a cross-sectional structural diagram of a display panel at point AA provided in an embodiment of this application;

[0038] Figure 5 This is a cross-sectional structural diagram of a display panel at point AA provided in an embodiment of this application;

[0039] Figure 6 This application also provides a schematic diagram of the relative positional relationship between the isolation structure and the first signal line in region Q of the display panel;

[0040] Figure 7 yes Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0041] Figure 8 This is a cross-sectional structural diagram of a display panel at BB provided in an embodiment of this application;

[0042] Figure 9 This is a schematic diagram of the structure of a display device provided in an embodiment of this application.

[0043] Marker explanation:

[0044] 10. Substrate;

[0045] 20. Isolation structure; 21. Opening structure; 22. First isolation part; 23. Second isolation part; 24. Third isolation part; 25. First insulating part; 26. First isolation structure; 27. Second isolation structure; 28. Insulating structure;

[0046] 30. Light-emitting functional layer; 31. Light-emitting structure;

[0047] 40. First electrode layer; 41. First electrode;

[0048] 50. Second electrode layer; 51. Second electrode;

[0049] 60. First signal line;

[0050] 71. First encapsulation layer; 711. First encapsulation part; 72. Second encapsulation layer; 73. Third encapsulation layer;

[0051] 80. Pixel definition layer; 81. Pixel limiting part; 82. Pixel opening;

[0052] 90. Blocking part; 91. Second insulating part;

[0053] D1, Gate drive circuit;

[0054] ICs and driver chips;

[0055] A1, Zone 1; A2, Zone 2; A21, Sub-zone 1; A22, Sub-zone 2;

[0056] X, first direction; Y, second direction; Z, thickness direction. Detailed Implementation

[0057] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0059] As users increasingly demand larger display sizes, the issue of narrowing display panel bezels has become particularly prominent. In related technologies, various circuit structures are typically arranged at the display panel bezel to ensure normal operation. The presence of these circuit structures makes it difficult to reduce the bezel size; forcibly reducing the bezel size can lead to display abnormalities or reduced image quality.

[0060] Regarding the above issues, firstly, please refer to [link / reference needed]. Figures 1 to 3 This application provides a display panel having a first region A1 and a second region A2 surrounding the first region A1. The display panel includes a substrate 10, an isolation structure 20, a light-emitting functional layer 30, a first electrode layer 40, and a first signal line 60. The isolation structure 20 is disposed on one side of the substrate 10 and forms a plurality of spaced-apart openings 21. The light-emitting functional layer 30 is disposed on one side of the substrate 10 and located within the first region A1. The light-emitting functional layer 30 includes a plurality of light-emitting structures 31 disposed within the plurality of openings 21, with at least one light-emitting structure 31 within each opening 21. For example, one light-emitting structure 31 may be within one opening 21, or multiple light-emitting structures 31 with the same color may be within one opening 21.

[0061] The first electrode layer 40 is disposed on the side of the light-emitting functional layer 30 facing away from the substrate 10. The first electrode layer 40 includes a first electrode 41 disposed within the opening structure 21 and electrically connected to the isolation structure 20. A first signal line 60 is located on one side of the isolation structure 20 along a first direction X. The first signal line 60 is electrically connected to the isolation structure 20 so that the power signal provided by the first signal line 60 is transmitted to the first electrode 41 through the isolation structure 20. The first direction X is parallel to the plane of the substrate 10.

[0062] The display panel has at least two areas: a first area A1 and a second area A2. The first area A1 is the display area used to achieve the display effect. The second area A2 surrounds the outer periphery of the first area A1 and is mainly used to arrange the driving circuitry in the display panel. The second area A2 is a non-display area. The dimensions and shapes of the first area A1 and the second area A2 are not limited in this embodiment. For example, the first area A1 can be square, and the second area A2 can be a square ring.

[0063] The substrate 10 primarily serves a supporting and load-bearing function. Other film layers are sequentially stacked on the substrate 10. Here, "stacked" refers to the other film layers being sequentially arranged along the thickness direction Z of the substrate 10. The substrate 10 may include multiple film layer structures, and the specific composition of the film layer structure of the substrate 10 is not limited in this embodiment. Furthermore, the thickness direction Z of other film layers located on one side of the substrate 10 is generally consistent with the thickness direction Z of the substrate 10 itself. Therefore, for ease of description, the thickness direction Z of the substrate 10 or other film layers mentioned later in this embodiment will be shown in the same direction.

[0064] 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 located within the first region A1 and includes multiple light-emitting structures 31. The light-emitting structures 31 are the main devices for realizing the light-emitting display. Among them, the light-emitting structures 31 include, but are not limited to, a red light-emitting structure 31 for emitting red light, a green light-emitting structure 31 for emitting green light, and a blue light-emitting structure 31 for emitting blue light. Each light-emitting structure 31 may include a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting layer, an electron injection layer (EIL), and an electron transport layer (ETL) stacked together.

[0065] The first electrode layer 40 is located on the side of the light-emitting functional layer 30 facing away from the substrate 10. Optionally, the display panel further includes a second electrode layer 50 located on the side of the light-emitting functional layer 30 facing the substrate 10. The first electrode layer 40 is provided with a first electrode 41, and the second electrode layer 50 is provided with a second electrode 51. There are multiple second electrodes 51, and the multiple second electrodes 51 are correspondingly arranged with the light-emitting structure 31. The first electrode 41 and the second electrode 51 jointly drive and control whether the light-emitting structure 31 emits light or not. For example, the first electrode 41 is a cathode, and the second electrode 51 is an anode.

[0066] The isolation structure 20 can enclose and form multiple opening structures 21. Exemplarily, the orthographic projection of the isolation structure 20 onto the substrate 10 is a mesh structure. Multiple light-emitting structures 31 are disposed within the multiple opening structures 21, meaning the orthographic projections of the light-emitting structures 31 onto the substrate 10 correspond to the orthographic projections of the opening structures 21 onto the substrate 10, and at least partially, the orthographic projections of the light-emitting structures 31 onto the substrate 10 are located within the orthographic projections of the opening structures 21 onto the substrate 10. Furthermore, during the fabrication of the light-emitting functional layer 30, the presence of the isolation structure 20 eliminates the need for a precision metal mask.

[0067] Specifically, taking the red emitting structure 31 before the green emitting structure 31 is fabricated as an example, since the precision metal mask is eliminated, the red emitting material corresponding to the red emitting structure 31 first falls into each opening structure 21. Then, a portion of the red emitting material in the opening structure 21 is selectively etched away, while a portion of the red emitting material in the opening structure 21 is retained to form the red emitting structure 31. After this, the green emitting material corresponding to the green emitting structure 31 falls into each opening structure 21. Then, a portion of the green emitting material in the opening structure 21 is selectively etched away, while a portion of the green emitting material in the opening structure 21 is retained to form the green emitting structure 31.

[0068] Similarly, due to the presence of the isolation structure 20, the first electrode layer 40 may also include a plurality of first electrodes 41 disposed in the opening structure 21, that is, the plurality of first electrodes 41 may be correspondingly disposed with the plurality of light-emitting structures 31 to realize the driving control of the light-emitting structures 31.

[0069] Furthermore, the first electrode 41 can be electrically connected to the isolation structure 20, meaning that the isolation structure 20 may include a conductive material, and the first electrode 41 and the conductive material within the isolation structure 20 can be interconnected. In this design, the power signal corresponding to the first electrode 41 can be transmitted to the first electrode 41 via the isolation structure 20 to meet the power signal transmission requirements.

[0070] It should be noted that the conductive material within the isolation structure 20 used for electrical connection with the first electrode 41 can be continuously arranged, meaning that the isolation structure 20 can achieve the effect of each first electrode 41 transmitting the same power signal. Alternatively, the conductive material within the isolation structure 20 used for electrical connection with the first electrode 41 can be intermittent or mutually insulated, meaning that at least some different first electrodes 41 can also receive or transmit power signals of different voltage magnitudes through the isolation structure 20, thereby achieving independent or zoned control of the light-emitting structure 31. This application embodiment does not impose any limitations on this.

[0071] The display panel also includes a first signal line 60, which is used to transmit a corresponding power signal to the first electrode 41. In related technologies, the first electrode layer 40 only includes a single, full-surface first electrode 41, while the first signal line 60, which is electrically connected to the first electrode 41, is typically located within the second area A2 and arranged in a ring around the outer periphery of the first electrode 41. This design causes the first electrode 41 to occupy too much space at the bezel of the display panel, which is not conducive to achieving a narrow bezel effect.

[0072] In this embodiment, the first signal line 60 is not directly connected to the first electrode 41. Instead, it transmits the power signal to each of the first electrodes 41 via the isolation structure 20. Specifically, since the isolation structure 20 is positioned corresponding to each of the first electrodes 41 and signal transmission can be achieved between them, it is unnecessary to extend the first signal line 60 to the position of each of the first electrodes 41. That is, the first signal line 60 does not need to be arranged around each of the first electrodes 41. It is sufficient to arrange the first signal line 60 along the first direction X on one side of the isolation structure 20 and electrically connect it to the isolation structure 20. In this way, the power signal located within the first signal line 60 can be transmitted to each of the first electrodes 41 via the isolation structure 20, thereby meeting the signal transmission requirements. Furthermore, since the first signal line 60 is located along the first direction X on one side of the isolation structure 20, rather than in a loop, it helps to reduce the bezel size of the display panel and improve the display effect.

[0073] It should be noted that the specific routing of the first signal line 60 is not limited in this embodiment. Furthermore, depending on the actual situation, the first signal line 60 may be entirely located on one side of the isolation structure 20 along the first direction X, or a small number of the first signal lines 60 may be located on other sides of the isolation structure 20 along different directions, as long as the vast majority of the first signal lines 60 are located on the same side of the isolation structure 20.

[0074] In some embodiments, such as Figures 1 to 3 As shown, the isolation structure 20 includes a first isolation portion 22 and a second isolation portion 23 stacked sequentially along the direction away from the substrate 10. The orthographic projection of the first isolation portion 22 onto the substrate 10 is located within the orthographic projection of the second isolation portion 23 onto the substrate 10.

[0075] The specific dimensions and shapes of the first isolation portion 22 and the second isolation portion 23 are not limited in this embodiment. For example, the longitudinal section of the isolation structure 20 can be T-shaped. This design helps to prevent the light-emitting material and electrode material from extending along the sidewall of the first isolation portion 22 to the sidewall of the second isolation portion 23 during the fabrication of the light-emitting functional layer 30 and the first electrode layer 40. This allows for the fabrication and separation of the light-emitting structure 31 and the first electrode 41 within different opening structures 21 without the need for a fine metal mask.

[0076] The embodiments of this application do not limit the material composition of the first isolation section 22 and the second isolation section 23. Both the first isolation section 22 and the second isolation section 23 may include conductive materials, or the first isolation section 22 may include conductive materials and the second isolation section 23 may include insulating materials, as long as the first electrode 41 can achieve signal transmission by means of the isolation structure 20.

[0077] Furthermore, at least a portion of the first signal line 60 is located within the second region A2. The first signal line 60 may be completely located within the second region A2, or it may partially extend into the first region A1. Similarly, the isolation structure 20 may be completely located within the first region A1, or it may partially extend into the second region A2. This application embodiment does not impose any limitations on this.

[0078] In some embodiments, the first isolation portion 22 includes a conductive material, and the first electrode 41 is electrically connected to the first isolation portion 22.

[0079] The first signal line 60 can transmit the power signal to the first electrode 41 through the first isolation part 22. The first electrode 41 can be in direct contact with the first isolation part 22, or the first electrode 41 can be electrically connected to the first isolation part 22 through other conductive structures. This application embodiment does not limit this.

[0080] In this embodiment, by providing a conductive material within the first isolation portion 22, the first signal line 60 can transmit the power signal to the first electrode 41 via the first isolation portion 22, thereby meeting the signal transmission requirements. Furthermore, by setting an extension path for the first isolation portion 22 within the first region A1, the first isolation portion 22 can extend to various areas within the first region A1. Consequently, the first signal line 60 only needs to be positioned along the first direction X on one side of the isolation structure 20, without needing to surround the first region A1, thereby reducing the bezel size of the display panel.

[0081] The positional relationship between the first signal line 60 and the first isolation portion 22 is not limited in this embodiment. In some embodiments, at least a portion of the first signal line 60 is in contact with the first isolation portion 22, meaning that the power signal within at least a portion of the first signal line 60 can be directly transmitted to the first isolation portion 22. Furthermore, if the isolation structure 20 also includes other conductive structures electrically connected to the first isolation portion 22, the first signal line 60 may also be in contact with other conductive structures.

[0082] In some embodiments, please refer to Figure 4The isolation structure 20 also includes a third isolation portion 24 located on the side of the first isolation portion 22 facing the substrate 10. The third isolation portion 24 includes a conductive material and is electrically connected to the first isolation portion 22.

[0083] The isolation structure 20 includes at least a first isolation portion 22, a second isolation portion 23, and a third isolation portion 24. The dimensions and shapes of the first isolation portion 22, the second isolation portion 23, and the third isolation portion 24 are not limited in this embodiment. For example, the orthographic projection of the first isolation portion 22 onto the substrate 10 lies within the orthographic projection of the third isolation portion 24 onto the substrate 10; that is, the longitudinal cross-sectional shape of the first isolation portion 22, the second isolation portion 23, and the third isolation portion 24 is I-shaped.

[0084] Similar to the first isolation portion 22, the third isolation portion 24 also includes a conductive material. The first electrode 41 can directly contact the third isolation portion 24 to achieve an electrical connection with the first isolation portion 22. Optionally, the first electrode 41 is overlapped with the third isolation portion 24. Furthermore, the first electrode 41 can be partially located on the side of the third isolation portion 24 facing away from the substrate 10. The arrangement of the third isolation portion 24 helps to improve the reliability of the electrical connection between the first electrode 41 and the isolation structure 20.

[0085] In some embodiments, the second isolation portion 23 includes a conductive material.

[0086] Similar to the first isolation portion 22, the second isolation portion 23 also includes a conductive material, meaning that the second isolation portion 23 can also be used to transmit signals. The first isolation portion 22 and the second isolation portion 23 can be electrically connected to each other, meaning that the second isolation portion 23 can also be used to transmit power signals. Alternatively, the first isolation portion 22 and the second isolation portion 23 can be insulated from each other, meaning that the second isolation portion 23 is not used to transmit power signals. This application embodiment does not limit this.

[0087] Alternatively, the first isolation section 22 and the second isolation section 23 are electrically connected, and at least a portion of the first signal line 60 is in contact with the second isolation section 23.

[0088] In this configuration, the first isolation section 22 can be directly connected to the second isolation section 23, and the same electrical signal is transmitted within both sections. The first signal line 60 can then be connected to the second isolation section 23, and the power signal in the first signal line 60 is transmitted to the first isolation section 22 via the second isolation section 23, and then to the first electrode 41 via the first isolation section 22, thus fulfilling the requirement for power signal transmission.

[0089] In some embodiments, please refer to Figure 5The isolation structure 20 also includes a first insulating part 25 disposed between the first isolation part 22 and the second isolation part 23.

[0090] The dimensions of the first insulating portion 25 relative to the first insulating portion 22 and the second insulating portion 23 are not limited in this embodiment. Exemplarily, the orthographic projection of the first insulating portion 22 onto the substrate 10 lies within the orthographic projection of the first insulating portion 25 onto the substrate 10, and the orthographic projection of the first insulating portion 25 onto the substrate 10 lies within the orthographic projection of the second insulating portion 23 onto the substrate 10. This helps to further reduce the risk of light-emitting material and electrode material extending from the sidewall of the first insulating portion 22 to the sidewall of the second insulating portion 23, thereby improving the reliability of the display panel manufacturing process.

[0091] Due to the presence of the first insulating part 25, the first insulating part 22 and the second insulating part 23 are in an insulated state, and the power signal in the first insulating part 22 will not be transmitted to the second insulating part 23. Based on this, the display panel can transmit other different types of signals via the second insulating part 23, which helps to reduce the number of internal traces of the display panel and simplify the trace design. Optionally, the second insulating part 23 can be used for touch signals.

[0092] In some embodiments, the etching selectivity ratio of the first isolation portion 22 to the second isolation portion 23 is greater than 1.

[0093] Etching selectivity refers to the relative etching rate of one material compared to another under the same etching conditions. Since the etching selectivity of the first isolation portion 22 relative to the second isolation portion 23 is greater than 1, the etching rate of the first isolation portion 22 is greater than the etching rate of the second isolation portion 23 under the same etching conditions.

[0094] Based on this, the first isolation portion 22 and the second isolation portion 23 can be formed by the same etching process. This can reduce the number of manufacturing steps in the display panel and improve the manufacturing efficiency. It can also ensure that the orthographic projection of the first isolation portion 22 on the substrate 10 after the manufacturing is completed is located within the orthographic projection of the second isolation portion 23 on the substrate 10, which has strong practicality.

[0095] In some embodiments, such as Figure 2 and Figure 3 As shown, the display panel also includes a driver chip IC disposed in the second area A2 and located on one side of the isolation structure 20 along the first direction X, and the first signal line 60 is electrically connected to the driver chip IC.

[0096] The driver chip IC is a drive control element that can control the first electrode 41. Further, the driver chip IC is located within the second region A2 and along the first direction X on one side of the isolation structure 20. Based on this, in order to achieve electrical connection between the driver chip IC and the first electrode 41, a first signal line 60 is added between the driver chip IC and the isolation structure 20 in this embodiment. The first signal line 60 is located along the first direction X between the driver chip IC and the isolation structure 20. The driver chip IC transmits the corresponding power signal to the first signal line 60, and then through the first signal line 60, it is transmitted to the isolation structure 20. Finally, the isolation structure 20 transmits the power signal to the first electrode 41 to achieve drive control of the first electrode 41.

[0097] Further, please refer to Figure 6 In some embodiments, the second region A2 includes a first region A21 and a second region A22 located between the driver chip IC and the isolation structure 20. The first region A21 and the second region A22 are arranged side by side in the second direction Y, and the first direction X intersects the second direction Y. The first signal line 60 located in the first region A21 is insulated from the first signal line 60 located in the second region A22.

[0098] Both the first partition A21 and the second partition A22 are located between the driver chip IC and the isolation structure 20. This embodiment does not limit the specific positional relationship between the first partition A21 and the second partition A22, as long as they are arranged side-by-side in the second direction Y. Optionally, the first direction X is perpendicular to the second direction Y.

[0099] Both the first partition A21 and the second partition A22 are provided with a first signal line 60. The first partition A21 may have only one first signal line 60, or it may have multiple first signal lines 60. Similarly, the second partition A22 may have only one first signal line 60, or it may have multiple first signal lines 60.

[0100] As described above, all first signal lines 60 are electrically connected to the isolation structure 20 to achieve electrical connection with the first electrode 41. Furthermore, the first signal lines 60 located in the first partition A21 and the first signal lines 60 located in the second partition A22 are mutually insulated. That is, the portion of the isolation structure 20 used for electrical connection with the first signal lines 60 in the first partition A21 is mutually insulated from the portion used for electrical connection with the first signal lines 60 in the second partition A22. This allows the first signal lines 60 in the first partition A21 and the first signal lines 60 in the second partition A22 to control different first electrodes 41 separately, thereby improving control accuracy.

[0101] In some embodiments, such as Figure 6 As shown, the isolation structure 20 includes a first isolation structure 26 and a second isolation structure 27 that are insulated from each other. The first isolation structure 26 and the second isolation structure 27 are located in different sections of the first region A1. The first isolation structure 26 and the second isolation structure 27 have different resistances within the same projected area. Different first signal lines 60 are electrically connected to the first isolation structure 26 and the second isolation structure 27, respectively.

[0102] The first isolation structure 26 and the second isolation structure 27 are insulated from each other. The dimensions and shapes of the first isolation structure 26 and the second isolation structure 27 are not limited in this embodiment. For example, the first isolation structure 26 can be in the form of a strip or a mesh, and the second isolation structure 27 can be similarly shaped.

[0103] Due to differences in extension length and shape between the first isolation structure 26 and the second isolation structure 27, the resistance corresponding to the first isolation structure 26 is not the same as that corresponding to the second isolation structure 27. Therefore, if a power signal of the same voltage is input to both the first isolation structure 26 and the second isolation structure 27, the power signal received by the different first electrodes 41 of the first isolation structure 26 and the second isolation structure 27 will be different. This can easily lead to uneven display on the display panel, which is detrimental to the display effect.

[0104] Based on this, in this embodiment of the application, different first signal lines 60 are electrically connected to the first isolation structure 26 and the second isolation structure 27 respectively. The driver chip IC can control the different first signal lines 60 to input different voltages to the first isolation structure 26 and the second isolation structure 27 according to the resistance of the first isolation structure 26 and the second isolation structure 27, thereby ensuring that the different first electrodes 41 corresponding to the first isolation structure 26 and the second isolation structure 27 can receive accurate voltage signals, thereby improving the control accuracy of the first electrode 41 and improving the display uniformity.

[0105] It should be noted that the embodiments of this application do not limit the resistance relationship between the first isolation structure 26 and the second isolation structure 27. Optionally, the first isolation structure 26 and the second isolation structure 27 may have different projected areas on the substrate 10, so that their resistance values ​​are different. Specifically, generally, the larger the projected area on the substrate 10, the larger the corresponding resistance value; the smaller the projected area on the substrate 10, the smaller the corresponding resistance value.

[0106] In other embodiments, the first isolation structure 26 and the second isolation structure 27 have different cross-sectional dimensions to result in different resistance values ​​between them. Specifically, generally, a larger cross-sectional dimension results in a smaller resistance value, and a smaller cross-sectional dimension results in a larger resistance value.

[0107] Furthermore, the insulation method between the first isolation structure 26 and the second isolation structure 27 is not limited in this embodiment. Optionally, the first isolation structure 26 and the second isolation structure 27 are spaced apart. Further optionally, the isolation structure 20 also includes an insulating structure 28 located between the first isolation structure 26 and the second isolation structure 27.

[0108] In some embodiments, such as Figure 3 As shown, the display panel also includes a first encapsulation layer 71 disposed on the side of the first electrode layer 40 away from the substrate 10. The first encapsulation layer 71 includes a plurality of first encapsulation portions 711 disposed in the opening structure 21.

[0109] The first encapsulation layer 71 is located on the side of the first electrode layer 40 facing away from the substrate 10, that is, on the light-emitting surface side of the light-emitting structure 31. The first encapsulation layer 71 can encapsulate and protect the light-emitting structure 31. Due to the presence of the isolation structure 20, the first encapsulation layer 71 formed can have multiple first encapsulation portions 711 corresponding to the light-emitting structure 31 and located within the opening structure 21. Each first encapsulation portion 711 can independently encapsulate each light-emitting structure 31, thereby improving the encapsulation and protection effect of the light-emitting structure 31.

[0110] The material composition of the first encapsulation layer 71 is not limited in this application embodiment. Exemplarily, the first encapsulation layer 71 includes inorganic materials.

[0111] In some embodiments, the display panel further includes a second encapsulation layer 72 located on the side of the first encapsulation layer 71 facing away from the substrate 10, and a third encapsulation layer 73 located on the side of the second encapsulation layer 72 facing away from the substrate 10.

[0112] The first encapsulation layer 71, the second encapsulation layer 72, and the third encapsulation layer 73 can together form a thin-film encapsulation structure, thereby further reducing the risk of water, oxygen, and other substances intruding into the light-emitting structure 31 and improving the reliability of the display panel. The material composition of the second encapsulation layer 72 and the third encapsulation layer 73 is not limited in this embodiment. Optionally, the first encapsulation layer 71 and the third encapsulation layer 73 both include inorganic materials, while the second encapsulation layer 72 includes organic materials. In this way, the first encapsulation layer 71 and the second encapsulation layer 72 can, to a certain extent, limit the position of the second encapsulation layer 72, improving structural reliability.

[0113] Unlike the first encapsulation layer 71, the second encapsulation layer 72 and the third encapsulation layer 73 can be a full-surface structure, that is, the orthogonal projection of the second encapsulation layer 72 on the substrate 10 can simultaneously cover the orthogonal projection of multiple light-emitting structures 31 on the substrate 10.

[0114] In some embodiments, please refer to Figure 2 , Figure 3 as well as Figure 7 The display panel also includes a blocking part 90 disposed in the second area A2. The oblique projection of the blocking part 90 on the substrate 10 is offset from the oblique projection of the first signal line 60 on the substrate 10.

[0115] The blocking part 90 is located in the second area A2. Normally, the blocking part 90 is located at the edge of the display panel. As mentioned above, the second encapsulation layer 72 includes organic materials. The organic materials included in the second encapsulation layer 72 usually have a certain degree of fluidity. In order to reduce the risk of overflow of the organic materials in the second encapsulation layer 72, the blocking part 90 is usually provided at the edge of the display panel. The presence of the blocking part 90 can reduce the risk of overflow and improve the reliability of the display panel.

[0116] Furthermore, since the first signal line 60 is located only on one side of the isolation structure 20 along the first direction X, rather than surrounding the periphery of the isolation structure 20, the first signal line 60 is not present in some locations in the second region A2. Based on this, the orthographic projection of the blocking portion 90 onto the substrate 10 can be offset from the orthographic projection of the first signal line 60 onto the substrate 10, meaning the first signal line 60 will not affect the layout design of the blocking portion 90. This helps reduce the risk of physical interference between the two.

[0117] The specific arrangement of the blocking portion 90 is not limited in this embodiment. Optionally, a portion of the structure in the blocking portion 90 may be located on at least one side of the isolation structure 20 along the second direction Y.

[0118] In some embodiments, the first encapsulation layer 71 and the blocking portion 90 are disposed without overlapping on the orthographic projection of the substrate 10.

[0119] Due to the presence of the isolation structure 20, the first encapsulation portion 711 in the first encapsulation layer 71 falls into the opening structure 21 and is correspondingly positioned with the light-emitting structure 31. Therefore, most of the first encapsulation layer 71 is located within the first region A1, and the first encapsulation layer 71 ends near the boundary between the first region A1 and the second region A2. The second encapsulation layer 72 typically covers beyond the first region A1 and extends into the second region A2. Therefore, within the second region A2, the limiting effect of the first encapsulation layer 71 on the second encapsulation layer 72 is relatively small.

[0120] Based on this, the second encapsulation layer 72 needs to be limited by other structures in the display panel besides the first encapsulation layer 71. Since the blocking part 90 and the first encapsulation layer 71 are not overlapped on the substrate 10, the presence of the blocking part 90 can limit the second encapsulation layer 72 and reduce the risk of overflow in the second encapsulation layer 72.

[0121] In some embodiments, the third encapsulation layer 73 is located on the side of the barrier portion 90 away from the substrate 10 and covers at least a portion of the structure of the barrier portion 90.

[0122] Unlike the first encapsulation layer 71, the third encapsulation layer 73 can be a full-surface structure, and the third encapsulation layer 73 can be partially located within the second region A2. Based on this, in this embodiment of the application, the third encapsulation layer 73 covers at least a portion of the structure of the blocking portion 90, so that the third encapsulation layer 73 can cooperate with the blocking portion 90 to limit the second encapsulation layer 72.

[0123] In some embodiments, please refer to Figure 7 The display panel also includes a gate driving circuit D1 located in the second region A2. The gate driving circuit D1 and the blocking part 90 are both located on the substrate 10, and the gate driving circuit D1 and the blocking part 90 are arranged adjacent to each other.

[0124] In some embodiments, please refer to Figure 8 The display panel also includes a gate driving circuit D1 located in the second region A2, and a blocking portion 90 is at least partially located on the side of the gate driving circuit D1 away from the substrate 10. For example, the entire blocking portion 90 is located on the side of the gate driving circuit D1 away from the substrate 10, or a portion of the blocking portion 90 is located on the side of the gate driving circuit D1 away from the substrate 10, and another portion of the blocking portion 90 is located on the substrate 10.

[0125] There may be multiple blocking portions 90, and the blocking portion 90 closest to the first region A1 is at least partially located on the side of the gate drive circuit D1 away from the substrate 10.

[0126] The gate driving circuit D1 is located in the second region A2. The gate driving circuit D1 may include a multi-stage shift register that is cascaded with each other. The multi-stage shift register can output the on level in sequence to scan the pixel circuits in each row of the first region A1 in sequence to meet the display requirements.

[0127] In related technologies, considering the fluidity of the second encapsulation layer 72, the blocking portion 90 usually needs to be spaced a large distance from the first region A1 so that the blocking portion 90 of a specific height size can effectively block the second encapsulation layer 72. Therefore, the blocking portion 90 is usually located on the side of the gate drive circuit D1 away from the first region A1, which will also affect the bezel size of the display panel and is not conducive to the display effect.

[0128] In this embodiment, due to the presence of the isolation structure 20, a portion of the second encapsulation layer 72 falls into the opening structure 21. Therefore, the opening structure 21 can provide some overflow protection for the second encapsulation layer 72. Furthermore, even if the distance between the blocking portion 90 and the first region A1 in the first direction X is reduced, the blocking portion 90 can still effectively block the second encapsulation layer 72, reducing the risk of overflow. Therefore, in this embodiment, the blocking portion 90 is configured to be at least partially located on the side of the gate drive circuit D1 away from the substrate 10.

[0129] With this design, the blocking portion 90 can effectively block the second encapsulation layer 72, reducing the risk of overflow in the second encapsulation layer 72 and improving encapsulation reliability. At the same time, this helps to reduce the spacing between the blocking portion 90 and the first region A1, thereby reducing the impact of the blocking portion 90 on the bezel size and further improving the narrow bezel effect.

[0130] In some embodiments, the display panel further includes a second insulating portion 91 located between the blocking portion 90 and the gate driving circuit D1. The second insulating portion 91 can cover at least a portion of the structure of the gate driving circuit D1, so that after the gate driving circuit D1 is fabricated, the second insulating portion 91 can isolate the gate driving circuit D1 from the air, and during subsequent metal layer fabrication processes, the second insulating portion 91 can also protect the gate driving circuit D1, reducing the risk of over-etching of the gate driving circuit D1 and improving reliability.

[0131] Furthermore, in this embodiment of the application, the first insulating portion 91 can insulate the blocking portion 90 from the gate driving circuit D1, thereby improving the operational reliability of the gate driving circuit D1. The second insulating portion 91 can be completely located on the side of the gate driving circuit D1 away from the substrate 10, or the second insulating portion 91 can be partially located on the side of the gate driving circuit D1 away from the first region A1.

[0132] Furthermore, when the blocking portion 90 is located on the side of the gate drive circuit D1 away from the substrate 10, the second insulating portion 91 can increase the distance between the blocking portion 90 and the substrate 10, thereby reducing the required height of the blocking portion 90 and the corresponding material cost, which is highly practical.

[0133] In some embodiments, the display panel further includes a pixel definition layer 80 disposed on the side of the isolation structure 20 facing the substrate 10. The pixel definition layer 80 includes a pixel defining portion 81 and a pixel opening 82 formed by the pixel defining portion 81. The light-emitting structure 31 is at least partially located within the pixel opening 82.

[0134] The pixel definition layer 80 includes a pixel defining portion 81 and a pixel opening 82. The pixel opening 82 is correspondingly disposed with the opening structure 21. For example, the orthographic projection of the pixel opening 82 on the substrate 10 can be located within the orthographic projection of the opening structure 21 on the substrate 10, and part of the light-emitting structure 31 and the first electrode 41 can be located within the pixel opening 82.

[0135] In some embodiments, the pixel definition layer 80 is located on the side of the blocking portion 90 away from the substrate 10, that is, the pixel definition layer 80 needs to extend from the first region A1 to the second region A2.

[0136] As described above, due to the presence of the isolation structure 20, the first encapsulation layer 71 ends near the boundary between the first region A1 and the second region A2. Therefore, the first encapsulation layer 71 cannot effectively block the second encapsulation layer 72 within the second region A2. Based on this, the pixel definition layer 80 extends from the first region A1 into the second region A2 and partially covers the blocking portion 90. That is, the pixel definition layer 80 can effectively block and limit the second encapsulation layer 72 within the second region A2, ensuring the reliability of the internal structure of the display panel.

[0137] Secondly, please refer to Figure 9 This application provides a display device, including the display panel in any of the foregoing embodiments.

[0138] It should be noted that the display device provided in this application embodiment has the beneficial effects of the display panel in any of the foregoing embodiments. For details, please refer to the foregoing description of the beneficial effects of the display panel. This application embodiment will not repeat the details.

[0139] While the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit the invention. Any person skilled in the art to which this application pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of protection of this application shall still be determined by the scope defined in the appended claims.

[0140] The above description is merely a specific embodiment of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, substitutions for other connection methods described above can be made by referring to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application.

Claims

1. A display panel, characterized in that, The display panel has a first area and a second area surrounding the first area. The display panel includes: substrate; An isolation structure is disposed on one side of the substrate and located in the first region, the isolation structure enclosing and forming a plurality of spaced-apart openings, the isolation structure comprising a conductive material; A light-emitting functional layer is disposed on one side of the substrate and located in the first region. The light-emitting functional layer includes a plurality of light-emitting structures disposed in a plurality of opening structures, and at least one light-emitting structure is disposed in one opening structure. A first electrode layer is disposed on the side of the light-emitting functional layer away from the substrate. The first electrode layer includes a plurality of first electrodes disposed within the opening structure and electrically connected to the conductive material of the isolation structure. A first signal line is located on one side of the isolation structure along a first direction. The first signal line is electrically connected to the conductive material of the isolation structure so as to transmit the power signal provided by the first signal line to the first electrode through the isolation structure. The first direction is parallel to the plane of the substrate. A driver chip is disposed in the second region and located on one side of the isolation structure along the first direction. The first signal line is electrically connected to the driver chip. In a plane parallel to the substrate, the extension dimension of the distribution range of the first signal line in the second direction is smaller than the extension dimension of the distribution range of the isolation structure in the second direction. The second direction is parallel to the plane of the substrate and intersects with the first direction.

2. The display panel according to claim 1, characterized in that, The isolation structure includes a first isolation portion and a second isolation portion stacked sequentially along a direction away from the substrate, wherein 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.

3. The display panel according to claim 2, characterized in that, The first isolation portion includes a conductive material, and the first electrode is electrically connected to the first isolation portion.

4. The display panel according to claim 3, characterized in that, At least a portion of the first signal line is in contact with the first isolation section.

5. The display panel according to claim 2, characterized in that, The isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate. The third isolation portion includes a conductive material and is electrically connected to the first isolation portion.

6. The display panel according to claim 5, characterized in that, The first electrode is connected to the third isolation portion.

7. The display panel according to claim 2, characterized in that, The second isolation section includes a conductive material.

8. The display panel according to claim 7, characterized in that, The first isolation section and the second isolation section are electrically connected, and at least a portion of the first signal line is in contact with the second isolation section.

9. The display panel according to claim 8, characterized in that, The isolation structure further includes a first insulating portion disposed between the first isolation portion and the second isolation portion.

10. The display panel according to claim 8, characterized in that, The etching selectivity ratio of the first isolation portion relative to the second isolation portion is greater than 1.

11. The display panel according to claim 1, characterized in that, The second region includes a first partition and a second partition located between the driver chip and the isolation structure. The first partition and the second partition are arranged side by side in a second direction, and the first direction intersects with the second direction. The first signal line located in the first partition is insulated from the first signal line located in the second partition.

12. The display panel according to claim 1, characterized in that, The isolation structure includes a first isolation structure and a second isolation structure that are insulated from each other. The first isolation structure and the second isolation structure are located in different partitions within the first region. The resistance of the first isolation structure and the second isolation structure is different over the same projected area. The first signal line is electrically connected to the first isolation structure and the second isolation structure, respectively.

13. The display panel according to claim 12, characterized in that, The first isolation structure and the second isolation structure have different projected areas on the substrate; and / or, The first isolation structure and the second isolation structure have different cross-sectional dimensions.

14. The display panel according to claim 12, characterized in that, The first isolation structure and the second isolation structure are spaced apart.

15. The display panel according to claim 12, characterized in that, The isolation structure also includes an insulating structure located between the first isolation structure and the second isolation structure.

16. The display panel according to claim 1, characterized in that, It also includes a first encapsulation layer disposed on the side of the first electrode layer away from the substrate, the first encapsulation layer including a plurality of first encapsulation portions disposed within the opening structure.

17. The display panel according to claim 16, characterized in that, The display panel further includes a second encapsulation layer located on the side of the first encapsulation layer opposite to the substrate, and a third encapsulation layer located on the side of the second encapsulation layer opposite to the substrate.

18. The display panel according to claim 17, characterized in that, The first encapsulation layer and the third encapsulation layer comprise inorganic materials, and the second encapsulation layer comprises organic materials.

19. The display panel according to claim 17, characterized in that, It also includes a blocking portion disposed in the second region, wherein the projection of the blocking portion onto the substrate is offset from the projection of the first signal line onto the substrate.

20. The display panel according to claim 19, characterized in that, The first encapsulation layer and the obstruction portion do not overlap on the orthographic projection of the obstruction portion onto the substrate.

21. The display panel according to claim 19, characterized in that, The third encapsulation layer is located on the side of the barrier portion away from the substrate and covers at least a portion of the structure of the barrier portion.

22. The display panel according to claim 19, characterized in that, It also includes a gate driving circuit located in the second region, wherein the blocking portion is at least partially located on the side of the gate driving circuit away from the substrate, or the blocking portion is adjacent to the gate driving circuit.

23. The display panel according to claim 22, characterized in that, The display panel also includes a second insulating portion located between the blocking portion and the gate driving circuit.

24. The display panel according to claim 19, characterized in that, It also includes a pixel definition layer disposed on the side of the isolation structure facing the substrate, the pixel definition layer including a pixel defining portion and a pixel opening formed by the pixel defining portion, and the light-emitting structure is at least partially located within the pixel opening.

25. The display panel according to claim 24, characterized in that, A portion of the pixel definition layer is located on the side of the blocking portion away from the substrate.

26. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 25.

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