Display panel and display device
The display panel design uses an isolation structure to transmit signals through the panel's side, reducing frame size and improving display quality by eliminating the need for a ring-shaped signal line configuration, thus addressing the challenge of maintaining display integrity with reduced borders.
Patent Information
- Application Number
- JP2024121392
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2023-08-28
- Filing Date
- 2024-07-26
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2044-07-26
AI Technical Summary
Existing display panels face challenges in reducing frame size while maintaining display quality due to the need for circuit configurations that occupy significant space, leading to display anomalies when forced reduction occurs.
The display panel design incorporates an isolation structure on the substrate that surrounds opening structures, allowing signal lines to be located on one side and connected to the isolation structure, eliminating the need for a ring-shaped configuration around the display area, thereby reducing frame size and improving display effect.
This design effectively reduces the frame size of the display panel by optimizing signal transmission through the isolation structure, enhancing display quality and manufacturing efficiency without the need for precise metal masks.
Smart Images

Figure 0007802874000001 
Figure 0007802874000002 
Figure 0007802874000003
Abstract
Description
[Technical Field]
[0001] This application claims priority to Chinese Patent Application No. 202311091555.7, entitled "Display Panel and Display Device," filed on August 28, 2023, and Chinese Patent Application No. 202311091950.5, entitled "Display Panel and Display Device," filed on August 28, 2023, the entire contents of which are incorporated herein by reference.
[0002] The present application relates to the technical field of display devices, and more particularly to display panels and display devices. [Background technology]
[0003] 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 range of applications, and are therefore widely used in various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, laptops, and desktop computers, becoming the mainstream display device. Summary of the Invention [Problem to be solved by the invention]
[0004] The embodiments of the present application provide a display panel and a display device that can reduce the frame size. [Means for solving the problem]
[0005] According to a first aspect, an embodiment of the present application provides a display panel, which has a first region, and includes a substrate, an isolation structure, and a light-emitting functional layer.
[0006] The isolation structure is provided on one side of the substrate and is located in at least a first region, the isolation structure surrounds and forms a plurality of opening structures, the isolation structure includes a conductive material, the light-emitting functional layer is provided on one side of the substrate and is located in the first region, the light-emitting functional layer includes a plurality of light-emitting structures respectively located in the plurality of opening structures, and 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, and the first direction is parallel to a plane in which the substrate is located.
[0007] According to a second aspect, an embodiment of the present application provides a display panel, the display panel having a first region and a second region surrounding the first region, the display panel including a substrate, an isolation structure, a light-emitting functional layer, a light-emitting control circuit and a blocking section.
[0008] The isolation structure is provided on one side of the substrate, and the isolation structure surrounds and forms a plurality of opening structures; the light-emitting functional layer is provided on one side of the substrate and is located in a first region; the light-emitting functional layer includes a plurality of light-emitting structures each located in the plurality of opening structures; the light-emitting control circuit is located in a second region; the blocking portion is provided in the second region, and at least a portion of the blocking portion is located on a side of the gate electrode driving circuit away from the substrate.
[0009] According to a third aspect, an embodiment of the present application provides a display panel, the display panel having a first region and a second region surrounding the first region, and the display panel includes a substrate, an isolation structure, a light-emitting functional layer, a gate electrode driving circuit and a blocking section.
[0010] the isolation structure is provided on one side of the substrate, and the isolation structure surrounds and forms a plurality of opening structures; the light-emitting functional layer is provided on one side of the substrate and is located in a first region; the light-emitting functional layer includes a plurality of light-emitting structures respectively located in the plurality of opening structures; the gate electrode driving circuit is located in a second region; the blocking portion is provided in the second region; and the orthogonal projection of at least a portion of the blocking portion on the substrate overlaps with the orthogonal projection of the gate electrode driving circuit on the substrate.
[0011] According to a fourth aspect, an embodiment of the present application provides a display panel, the display panel having a first region and a second region surrounding the first region, the display panel including: a substrate; an isolation structure provided on one side of the substrate and surrounding the first region to form a plurality of aperture structures; a light-emitting functional layer provided on one side of the substrate and located in the first region, the light-emitting functional layer including a plurality of light-emitting structures each provided in the plurality of aperture structures; a gate electrode driving circuit located in the second region; and a blocking portion provided in the second region, wherein a normal projection of the blocking portion on the substrate and a normal projection of the gate electrode driving circuit on the substrate are adjacent to each other.
[0012] According to a fifth aspect, an embodiment of the present application provides a display panel, the display panel having a first region and a second region, the first region including a display region and the second region including a lower frame region, the display panel including a substrate, an isolation structure provided on one side of the substrate and located in at least the first region, the isolation structure surrounding the isolation structure forming a plurality of aperture structures, the isolation structure including a conductive material, a light-emitting functional layer provided on one side of the substrate and located in the first region, the light-emitting functional layer including a plurality of light-emitting structures respectively located in the plurality of aperture structures.
[0013] The first signal line is located on one side of the isolation structure along a first direction, and the first signal line is electrically connected to the conductive material of the isolation structure, and the first direction is a direction from the display area toward the lower frame area.
[0014] According to a sixth aspect, an embodiment of the present application provides a display device including the display panel of any of the above embodiments.
[0015] The present disclosure provides a display panel and a display device, in which a first signal line is located on one side of the first region along a first direction without surrounding the first region and transmits signals to different locations in the first region via an isolation structure. Specifically, because the isolation structure is distributed throughout each location in the first region and a conductive material for transmitting a specific signal is provided within the isolation structure, the first signal line does not need to be located so as to surround each first region; instead, the first signal line is only located on one side of the isolation structure along the first direction and electrically connected to the isolation structure. In this way, the power signal located in the first signal line can be transmitted to different locations in each first region via the isolation structure, thereby satisfying the signal transmission needs. Furthermore, because the first signal line is located on one side of the isolation structure along the first direction and is not a ring-shaped structure, it helps reduce the frame size of the display panel and improve the display effect. [Brief explanation of the drawings]
[0016] [Figure 1] 1 is a structural schematic diagram of a display panel according to an embodiment of the present application. [Figure 2] 2 is a schematic diagram showing the relative positional relationship between the isolation structure and the first signal line in region Q of FIG. 1. FIG. [Figure 3] FIG. 3 is a schematic cross-sectional view of the structure taken along the line AA in FIG. 2. [Figure 4] 2 is a schematic cross-sectional view of the display panel taken along line AA according to an embodiment of the present invention; FIG. [Figure 5] 2 is a schematic cross-sectional view of the display panel taken along line AA according to an embodiment of the present invention; FIG. [Figure 6] 10 is a schematic diagram illustrating the relative positional relationship between an isolation structure and a first signal line in a region Q of a display panel according to an embodiment of the present application. FIG. [Figure 7] FIG. 3 is a schematic cross-sectional view of the structure taken along the line BB in FIG. 2. [Figure 8] 10 is a schematic cross-sectional view of the structure of another display panel taken along line BB according to an embodiment of the present application. FIG. [Figure 9] 10 is a schematic cross-sectional view of the structure of another display panel taken along line BB according to an embodiment of the present application. FIG. [Figure 10]10 is a schematic cross-sectional view of the structure of another display panel taken along line BB according to an embodiment of the present application. FIG. [Figure 11] 10 is a schematic cross-sectional view of the structure of another display panel taken along line BB according to an embodiment of the present application. FIG. [Figure 12] 1 is a schematic structural diagram of a display device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION
[0017] As users increasingly demand larger display sizes, the problem of narrower frame sizes of display panels becomes more pronounced. In related art, the frame position of a display panel typically requires the placement of multiple types of circuit configurations to ensure proper operation of the display panel. The presence of these circuit configurations makes it difficult to reduce the frame size of a display panel. Forcibly reducing the frame size can result in display anomalies and degradation of display image quality.
[0018] 1 to 3 , in a first aspect, an embodiment of the present application provides a display panel having a first area A1, the display panel including a substrate 10, an isolation structure 20, a light-emitting functional layer, and a first signal line 60, the isolation structure 20 being disposed on one side of the substrate 10 and surrounding the isolation structure 20 to form a plurality of spaced apart aperture structures 21, the light-emitting functional layer being disposed on one side of the substrate 10 and located at least in the first area A1, the light-emitting functional layer including a plurality of light-emitting structures 31 disposed in the plurality of aperture structures 21 respectively, with at least one light-emitting structure 31 in each aperture structure 21. For example, one light-emitting structure 31 may be disposed in each aperture structure 21, or multiple light-emitting structures 31 of the same emission color may be disposed in each aperture structure 21.
[0019] The first signal line 60 is located on one side of the isolation structure 20 along a first direction X, and the first signal line 60 is electrically connected to the isolation structure 20, and the first direction X is parallel to the plane on which the substrate 10 is located.
[0020] The display panel further includes a second region A2 in addition to a first region A1. The first region A1 is a display region for realizing a display effect on the display panel, and the second region A2 is a non-display region surrounding the outer periphery of the first region A1 and is mainly used for arranging driving circuits for the display panel. The size and shape of the first region A1 and the second region A2 are not limited to the embodiments of the present application. For example, the first region A1 may have a rectangular structure, and the second region A2 may have a square-ring structure.
[0021] The substrate 10 mainly functions as a support, and the other film layers are sequentially stacked on the substrate 10, where "stacked" refers to the other film layers being sequentially stacked along the thickness direction Z of the substrate 10. Here, the substrate 10 may include multiple film layer structures, and the specific film layer structure of the substrate 10 is not limited to this in the embodiments of the present application. Note that the thickness direction Z of the other film layers located on one side of the substrate 10 generally coincides with the thickness direction Z of the substrate 10 itself, and therefore, for convenience of explanation, the thickness direction Z of the substrate 10 or the thickness direction Z of the other film layers in the following embodiments of the present application will be shown as the same direction.
[0022] The light-emitting functional layer and the isolation structure 20 are located on the same side of the substrate 10. The light-emitting functional layer is located in the first region A1 and includes a plurality of light-emitting structures 31, which are main devices for realizing light-emitting display. Here, 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), which are stacked one on the other.
[0023] Optionally, the display panel may further include a first electrode layer 40 located on a side of the light-emitting functional layer away from the substrate 10. The display panel may further include a second electrode layer 50 located on a side of the light-emitting functional layer facing the substrate 10, the first electrode layer 40 being provided with a first electrode 41, the second electrode layer 50 being provided with a second electrode 51, the number of the second electrodes 51 being plural, the plural second electrodes 51 being provided corresponding to the light-emitting structures 31, the first electrode 41 and the second electrode 51 jointly driving and controlling whether the light-emitting structures 31 emit light. Exemplarily, the first electrode 41 is a cathode, and the second electrode 51 is an anode.
[0024] The isolation structure 20 can surround and form a plurality of aperture structures 21, and for example, the orthogonal projection of the isolation structure 20 on the substrate 10 presents a mesh structure. The plurality of light-emitting structures 31 are respectively disposed within the plurality of aperture structures 21, i.e., the orthogonal projection of the light-emitting structure 31 on the substrate 10 corresponds to the orthogonal projection of the aperture structure 21 on the substrate 10, and the orthogonal projection of the light-emitting structure 31 on the substrate 10 is at least partially located within the orthogonal projection of the aperture structure 21 on the substrate 10. Furthermore, the presence of the isolation structure 20 can cancel out a precise metal mask during the manufacturing process of the light-emitting functional layer.
[0025] Specifically, taking the example of manufacturing the red light-emitting structure 31 before the green light-emitting structure 31, in order to cancel out the precision metal mask, the red light-emitting material corresponding to the red light-emitting structure 31 is first dropped into each opening structure 21, and then the red light-emitting material in some of the opening structures 21 is selectively etched away, and the red light-emitting material in some of the opening structures 21 is reserved to form the red light-emitting structure 31. Then, the green light-emitting material corresponding to the green light-emitting structure 31 is dropped into each opening structure 21, and then the green light-emitting material in some of the opening structures 21 is selectively etched away, and the green light-emitting material in some of the opening structures 21 is reserved to form the green light-emitting structure 31.
[0026] Similarly, due to the presence of the isolation structure 20, the first electrode layer 40 may include a plurality of first electrodes 41 each arranged within the opening structure 21, i.e., the plurality of first electrodes 41 may be arranged corresponding to a plurality of light-emitting structures 31 to realize driving control for the light-emitting structures 31.
[0027] Further optionally, the first electrode 41 may be provided in electrical communication with the isolation structure 20, i.e., the isolation structure 20 may include a conductive material, and the first electrode 41 and the conductive material in the isolation structure 20 may be in communication with each other. In such a design, a power signal corresponding to the first electrode 41 may be transmitted through the isolation structure 20 into the first electrode 41 as required for the power signal transmission.
[0028] It should be noted that the conductive material to be electrically connected to the first electrodes 41 in the isolation structure 20 may be provided continuously, i.e., each first electrode 41 may transmit the same power signal through the isolation structure 20. Alternatively, the conductive material to be electrically connected to the first electrodes 41 in the isolation structure 20 may be provided discontinuously or insulated from each other, i.e., at least some different first electrodes 41 may receive or transmit power signals of different voltage values through the isolation structure 20, thereby realizing independent or partitioned control of the light emitting structures 31, which is not limited in the embodiments of the present application.
[0029] The display panel further includes a first signal line 60 for transmitting a specific signal. In the related art, a partial structure of the first signal line 60 located in the second region A2 needs to be annular and surround the outer periphery of the first region A1 so that signals in the first signal line 60 can be transmitted to different positions in the first region A1 and help reduce voltage drop. However, such a design causes the first signal line 60 to occupy an excessive size at the frame position of the display panel, which is disadvantageous for achieving a narrow frame effect.
[0030] In the present embodiment, the first signal line 60 is located on one side of the first region A1 along the first direction X without surrounding the first region A1, and transmits signals to different positions in the first region A1 via the isolation structure 20. Specifically, the isolation structure 20 is stretched throughout each position in the first region A1, and a conductive material for transmitting a specific signal is provided within the isolation structure 20.
[0031] Therefore, the first signal line 60 does not need to be arranged to surround each first area A1, but only needs to be arranged on one side of the isolation structure 20 in the first direction X and electrically connected to the isolation structure 20. In this way, the power signal located in the first signal line 60 can be transmitted to different positions in each first area A1 via the isolation structure 20, thereby satisfying the need for signal transmission. Furthermore, because the first signal line 60 is located on one side of the isolation structure 20 in the first direction X and does not have a ring structure, it contributes to reducing the frame size of the display panel and improving the display effect.
[0032] The specific wiring form of the first signal lines 60 is not limited to the embodiment of the present application. Depending on the actual situation, the first signal lines 60 may be located entirely on one side of the isolation structure 20 along the first direction X, or a small number of first signal lines 60 may be located on the other side of the isolation structure 20 along a different direction, as long as most of the first signal lines 60 are located on the same side of the isolation structure 20.
[0033] In some embodiments, as shown in Figures 1 to 3, the isolation structure 20 includes a first isolation portion 22 and a second isolation portion 23 that are stacked sequentially along a direction away from the substrate 10, and the orthogonal projection of the first isolation portion 22 on the substrate 10 is located within the orthogonal projection of the second isolation portion 23 on the substrate 10.
[0034] The specific sizes and shapes of the first isolation portion 22 and the second isolation portion 23 are not limited in the embodiments of the present application. For example, the vertical cross section of the isolation structure 20 may be T-shaped. This design helps 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 manufacturing process of the light emitting functional layer and the first electrode layer 40, thereby realizing the manufacturing and mutual isolation of the light emitting structures 31 and the first electrodes 41 in different opening structures 21 without the need for a precise metal mask.
[0035] The material compositions of the first isolation portion 22 and the second isolation portion 23 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, as long as the first electrode 41 can transmit a signal through the isolation structure 20.
[0036] Furthermore, at least a portion of the first signal line 60 may be located within the second region A2, and the first signal line 60 may be located entirely within the second region A2, or the first signal line 60 may extend partially within the first region A1. Similarly, the isolation structure 20 may be located entirely within the first region A1, or the isolation structure 20 may extend partially within the second region A2, and the embodiments of the present application are not limited thereto.
[0037] In some embodiments, the display panel further includes a first electrode layer 40 located on the side of the light-emitting functional layer away from the substrate 10, the first electrode layer 40 including a plurality of first electrodes 41 arranged within a plurality of opening structures 21, and the first electrodes 41 are arranged in electrical connection with the first signal line 60 via the isolation structure 20.
[0038] In this embodiment, the first signal line 60 is not directly connected to the first electrodes 41 but transmits power signals to each first electrode 41 via the isolation structure 20. Specifically, the isolation structure 20 itself is provided corresponding to each first electrode 41, enabling signal transmission therebetween. Therefore, the first signal line 60 does not need to extend to the position of each first electrode 41; that is, the first signal line 60 does not need to be provided so as to surround each first electrode 41. Instead, the first signal line 60 only needs to be provided on one side of the isolation structure 20 in the first direction X and electrically connected to the isolation structure 20. In this way, the power signal within the first signal line 60 can be transmitted to each first electrode 41 via the isolation structure 20, thereby satisfying the signal transmission needs. Furthermore, because the first signal line 60 is provided on one side of the isolation structure 20 in the first direction X and is not a ring-shaped structure, it contributes to reducing the frame size of the display panel and improving the display effect.
[0039] In some embodiments, the first isolation portion 22 comprises a conductive material, and the first electrode 41 is provided in electrical connection with the first isolation portion 22 .
[0040] The first signal line 60 can transmit a power signal to the first electrode 41 via the first isolation portion 22, where the first electrode 41 may be in direct contact with the first isolation portion 22, or the first electrode 41 may be electrically connected to the first isolation portion 22 via another conductive structure, and the embodiments of the present application are not limited thereto.
[0041] In this embodiment, by disposing a conductive material within the first isolation portion 22, the first signal line 60 can transmit a power signal to the first electrode 41 via the first isolation portion 22, thereby satisfying the need for signal transmission. Furthermore, by providing an extension path for the first isolation portion 22 within the first area A1, the first isolation portion 22 can extend to the range of each region in the first area A1. Therefore, the first signal line 60 only needs to be disposed on one side of the isolation structure 20 along the first direction X, and there is no need for the first signal line 60 to be disposed so as to surround the first area A1, thereby reducing the frame size of the display panel.
[0042] The positional relationship between the first signal line 60 and the first isolation portion 22 is not limited in this embodiment of the present application. In some examples, at least a portion of the first signal line 60 may contact the first isolation portion 22, i.e., the power signal in at least a portion of the first signal line 60 may be directly transmitted into the first isolation portion 22. Furthermore, if the isolation structure 20 further includes another conductive structure electrically connected to the first isolation portion 22, the first signal line 60 may contact the other conductive structure.
[0043] In some embodiments, referring to FIG. 4 , the isolation structure 20 further 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 including a conductive material and electrically connected to the first isolation portion 22.
[0044] The isolation structure 20 includes at least a first isolation portion 22, a second isolation portion 23, and a third isolation portion 24, and the embodiments of the present application are not limited to the sizes and shapes of the first isolation portion 22, the second isolation portion 23, and the third isolation portion 24. For example, the orthogonal projection of the first isolation portion 22 on the substrate 10 is located within the orthogonal projection of the third isolation portion 24 on the substrate 10, i.e., the vertical cross-sectional shapes of the first isolation portion 22, the second isolation portion 23, and the third isolation portion 24 are U-shaped.
[0045] Similar to the first isolation portion 22, the third isolation portion 24 also includes a conductive material, and the first electrode 41 can be in direct contact with the third isolation portion 24 to achieve electrical connection with the first isolation portion 22 through the third isolation portion 24. Optionally, the first electrode 41 is connected to the third isolation portion 24 in an overlapping manner. Furthermore, the first electrode 41 may be partially located on the side of the third isolation portion 24 that is away from the substrate 10, and the provision 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.
[0046] In some embodiments, the second isolation portion 23 comprises a conductive material.
[0047] Similar to the first isolation portion 22, the second isolation portion 23 also includes a conductive material, i.e., the second isolation portion 23 may be used to realize a signal transmission function, where the first isolation portion 22 and the second isolation portion 23 may be electrically connected to each other, i.e., the second isolation portion 23 may be used to transmit a power signal, or the first isolation portion 22 and the second isolation portion 23 may be insulated from each other, i.e., the second isolation portion 23 may not be used to transmit a power signal, and the embodiments of the present application are not limited thereto.
[0048] Further optionally, the first isolation portion 22 is provided in electrical connection with the second isolation portion 23 , and at least a portion of the first signal line 60 is provided in contact with the second isolation portion 23 .
[0049] In this case, the first isolation portion 22 may be provided in direct contact with the second isolation portion 23, and in this case, the same electrical signal is transmitted to the first isolation portion 22 and the second isolation portion 23. In this case, the first signal line 60 and the second isolation portion 23 can be connected in contact with each other, and the power signal in the first signal line 60 is transmitted to the first isolation portion 22 via the second isolation portion 23, and then transmitted to the first electrode 41 via the first isolation portion 22, thereby satisfying the need for transmitting the power signal.
[0050] In some embodiments, referring to FIG. 5, the isolation structure 20 further includes a first insulating portion 25 disposed between the first isolation portion 22 and the second isolation portion 23 .
[0051] The size of the first insulating portion 25 relative to the first isolation portion 22 and the second isolation portion 23 is not limited in the embodiments of the present application. Exemplarily, the orthogonal projection of the first isolation portion 22 on the substrate 10 is located within the orthogonal projection of the first insulating portion 25 on the substrate 10, and the orthogonal projection of the first insulating portion 25 on the substrate 10 is located within the orthogonal projection of the second isolation portion 23 on the substrate 10. This further reduces the risk of the light-emitting material and the electrode material extending from the sidewall of the first isolation portion 22 to the sidewall of the second isolation portion 23, which helps to improve the reliability of manufacturing the display panel.
[0052] Due to the presence of the first insulating portion 25, the first isolation portion 22 and the second isolation portion 23 are insulated from each other, and the power signal in the first isolation portion 22 is not transmitted to the second isolation portion 23. Based on this, the display panel can transmit other types of signals through the second isolation portion 23, which helps reduce the number of internal wirings of the display panel and ease the difficulty of wiring design. Optionally, the second isolation portion 23 may be used for touch signals.
[0053] In some embodiments, the etch selectivity of the first isolation portions 22 relative to the second isolation portions 23 is greater than one.
[0054] The etching selectivity ratio refers to the relative etching rate of one material to another material under the same etching conditions. Since the etching selectivity ratio of the first isolation portion 22 to the second isolation portion 23 is greater than 1, the etching rate corresponding to the first isolation portion 22 is greater than the etching rate of the second isolation portion 23 under the same etching conditions.
[0055] Based on this, the first isolation portion 22 and the second isolation portion 23 can be manufactured and formed using the same etching process, thereby reducing the manufacturing process of the display panel and improving manufacturing efficiency. After manufacturing is completed, the orthogonal projection of the first isolation portion 22 on the substrate 10 can be positioned within the orthogonal projection of the second isolation portion 23 on the substrate 10, making it more practical.
[0056] In some embodiments, as shown in FIGS. 2 and 3, the display panel further includes a second region A2, which is arranged to surround the periphery of the first region A1, and the display panel further includes a driving chip IC arranged in the second region 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 driving chip IC.
[0057] The driver chip IC is a driving control element and can control the first electrode 41. Furthermore, the driver chip IC is located in the second area A2 and on one side of the isolation structure 20 in the first direction X. Based on this, to realize the electrical connection between the driver chip IC and the first electrode 41, the embodiment of the present application adds a first signal line 60 between the driver chip IC and the isolation structure 20. The first signal line 60 is located between the driver chip IC and the isolation structure 20 in the first direction X. The driver chip IC transmits a corresponding power signal to the first signal line 60, and then transmits it to the isolation structure 20 via the first signal line 60. Finally, the isolation structure 20 transmits the power signal to the first electrode 41 to realize the driving control of the first electrode 41.
[0058] 6, in some embodiments, the second region A2 includes a first sub-region A21 and a second sub-region A22 located between the driver chip IC and the isolation structure 20, the first sub-region A21 and the second sub-region A22 being arranged side by side in the second direction Y, and the first direction X intersecting with the second direction Y. Here, the first signal line 60 located in the first sub-region A21 and the first signal line 60 located in the second sub-region A22 are insulated from each other.
[0059] The first sub-region A21 and the second sub-region A22 are both located between the driver chip IC and the isolation structure 20. The specific positional relationship between the first sub-region A21 and the second sub-region A22 is not limited to the embodiment of the present application, as long as the first sub-region A21 and the second sub-region A22 are arranged side by side in the second direction Y. Optionally, the first direction X is perpendicular to the second direction Y.
[0060] A first signal line 60 is provided in both the first sub-region A21 and the second sub-region A22, and only one first signal line 60 may be provided in the first sub-region A21, or multiple first signal lines 60 may be provided in the first sub-region A21. Similarly, only one first signal line 60 may be provided in the second sub-region A22, or multiple first signal lines 60 may be provided in the second sub-region A22.
[0061] As can be seen from the above, the first signal lines 60 are electrically connected to the isolation structure 20 so as to achieve electrical connection with the first electrodes 41 via the isolation structure 20. Based on this, the first signal lines 60 located in the first sub-region A21 and the first signal lines 60 located in the second sub-region A22 are insulated from each other; that is, the partial structure of the isolation structure 20 for electrically connecting to the first signal lines 60 in the first sub-region A21 and the partial structure of the isolation structure 20 for electrically connecting to the first signal lines 60 in the second sub-region A22 are insulated from each other. In this way, the first signal lines 60 located in the first sub-region A21 and the first signal lines 60 located in the second sub-region A22 can separately control different first electrodes 41, which helps to improve control accuracy.
[0062] 6 , the isolation structure 20 includes a first isolation structure 26 and a second isolation structure 27 that are isolated from each other and located in different sub-regions of the first region A1. The first isolation structure 26 and the second isolation structure 27 have different resistances within the same orthogonal projection area, and different first signal lines 60 are electrically connected to the first isolation structure 26 and the second isolation structure 27, respectively.
[0063] The first isolation structure 26 and the second isolation structure 27 are provided to be insulated from each other, and the embodiment of the present application is not limited to the size and shape of the first isolation structure 26 and the second isolation structure 27. For example, the first isolation structure 26 may have a stripe-like or mesh-like structure, and the second isolation structure 27 may have a similar structure.
[0064] Due to factors such as differences in the extension length and shape of the first isolation structure 26 and the second isolation structure 27, the electrical resistance corresponding to the first isolation structure 26 is different from the electrical resistance corresponding to the second isolation structure 27. Based on this, when power signals of the same voltage are input to the first isolation structure 26 and the second isolation structure 27, the power signals received by the different first electrodes 41 corresponding to the first isolation structure 26 and the second isolation structure 27 will have different magnitudes, which is likely to cause problems such as display unevenness on the display panel and is detrimental to the display effect.
[0065] Based on this, in the embodiment of the present application, different first signal lines 60 are installed to be electrically connected to the first isolation structure 26 and the second isolation structure 27, respectively, and the driving chip IC can control the different first signal lines 60 according to the magnitude of the resistance of the first isolation structure 26 and the second isolation structure 27 to input different voltages to the first isolation structure 26 and the second isolation structure 27, so 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 electrodes 41 and improving display uniformity.
[0066] The resistance relationship between the first isolation structure 26 and the second isolation structure 27 is not limited to this embodiment of the present application. Optionally, the first isolation structure 26 and the second isolation structure 27 have different orthogonal projection areas on the substrate 10, and therefore have different resistance values. Specifically, the larger the orthogonal projection area on the substrate 10, the higher the corresponding resistance value, and the smaller the orthogonal projection area on the substrate 10, the lower the corresponding resistance value.
[0067] In some other embodiments, the first isolation structure 26 and the second isolation structure 27 have different cross-sectional sizes, resulting in different resistances between them. Specifically, a larger cross-sectional size typically results in a lower resistance, and a smaller cross-sectional size typically results in a higher resistance.
[0068] Furthermore, the insulating manner between the first isolation structure 26 and the second isolation structure 27 is not limited to the embodiment of the present application. Optionally, the first isolation structure 26 is spaced apart from the second isolation structure 27. Optionally, the isolation structure 20 further includes an insulating structure 28 located between the first isolation structure 26 and the second isolation structure 27.
[0069] In some embodiments, as shown in FIG. 3, the display panel further includes a first sealing layer 71 provided on the side of the first electrode layer 40 away from the substrate 10, and the first sealing layer 71 includes a plurality of first sealing portions 711 each provided within the opening structure 21.
[0070] The first encapsulating layer 71 is located on the side of the first electrode layer 40 away from the substrate 10, i.e., on the light-emitting surface side of the light-emitting structure 31. The first encapsulating layer 71 may serve as a protective encapsulation for the light-emitting structure 31. Due to the presence of the isolation structure 20, the manufactured first encapsulating layer 71 may have multiple first encapsulating portions 711 corresponding to the light-emitting structures 31 and located within the opening structure 21, and each first encapsulating portion 711 serves to independently encapsulate each light-emitting structure 31, thereby improving the encapsulation and protection effect for the light-emitting structure 31.
[0071] The present embodiment is not limited to a material composition of the first sealing layer 71. Illustratively, the first sealing layer 71 includes an inorganic material.
[0072] In some embodiments, the display panel further includes a second sealing layer 72 located on the side of the first sealing layer 71 facing away from the substrate 10, and a third sealing layer 73 located on the side of the second sealing layer 72 facing away from the substrate 10.
[0073] The first encapsulating layer 71, the second encapsulating layer 72, and the third encapsulating layer 73 can collectively form a thin-film encapsulation structure, which further reduces the risk of moisture, oxygen, etc. penetrating into the light-emitting structure 31 and improves the reliability of the display panel. The material compositions of the second encapsulating layer 72 and the third encapsulating layer 73 are not limited to those in the embodiments of the present application. Optionally, the first encapsulating layer 71 and the third encapsulating layer 73 can both include an inorganic material, and the second encapsulating layer 72 can include an organic material. In this way, the first encapsulating layer 71 and the second encapsulating layer 72 can serve to a certain extent as a positional constraint for the second encapsulating layer 72, thereby improving the reliability of the structure.
[0074] Unlike the first encapsulation layer 71, the second encapsulation layer 72 and the third encapsulation layer 73 may be full-surface structures, i.e., the orthogonal projection of the second encapsulation layer 72 on the substrate 10 and the orthogonal projection of the multiple light-emitting structures 31 on the substrate 10 may be simultaneously covered by the second encapsulation layer 72.
[0075] In some embodiments, referring to FIGS. 2, 3 and 7, the display panel further includes a blocking portion 90 arranged in the second region A2, and the blocking portion 90 is arranged so that the orthogonal projection of the structure on the substrate 10 located on both sides of the first region A1 along the second direction Y does not overlap with the orthogonal projection of the first signal line 60 on the substrate 10, and the first direction X intersects with the second direction Y.
[0076] The blocking portion 90 is located in the second region A2, and is usually located at the edge position of the display panel. As can be seen from the above, the second sealing layer 72 contains an organic material, and the organic material contained in the second sealing layer 72 usually has a certain fluidity. In order to reduce the risk of the organic material in the second sealing layer 72 overflowing, the blocking portion 90 is usually provided at the edge position of the display panel. The presence of the blocking portion 90 can reduce the risk of overflow and improve the reliability of the display panel.
[0077] For example, the second region A2 includes left and right frames and a lower frame, and when the first signal line 60 is located in the lower frame and is not provided in the left and right frames, the second region A2 is provided so that the orthogonal projection of the blocking portion 90 located in the left and right frames on the substrate 10 does not overlap with the orthogonal projection of the first signal line 60 on the substrate 10.
[0078] Furthermore, because the first signal line 60 is located on one side of the isolation structure 20 only in the first direction X and is not arranged to surround the periphery of the isolation structure 20, the first signal line 60 is not present in some positions in the second region A2, for example, in local regions in the second region A2 located on both sides of the first region A1 along the second direction Y. Based on this, the orthogonal projection on the substrate 10 of the structure in which the blocking portions 90 are located on both sides of the first region A1 along the second direction Y is distributed at a position offset from the orthogonal projection on the substrate 10 of the first signal line 60, i.e., the first signal line 60 does not affect the layout design of the blocking portions 90, which helps to reduce the risk of physical interference between them.
[0079] In some embodiments, the first sealing layer 71 and the blocking portion 90 are provided so that their orthogonal projections on the substrate 10 do not overlap.
[0080] Due to the presence of the isolation structure 20, the first sealing portion 711 of the first sealing layer 71 falls within the opening structure 21 and is provided corresponding to the light emitting structure 31. Therefore, most of the first sealing layer 71 is located within the first region A1, and the first sealing layer 71 is located near the boundary between the first region A1 and the second region A2. The second sealing layer 72 usually covers the first region A1 or more and extends into the second region A2, so that the influence of the first sealing layer 71 on the second sealing layer 72 in the second region A2 is reduced.
[0081] Based on this, the second sealing layer 72 needs to achieve positional restriction through a structure other than the first sealing layer 71 in the display panel, but since the blocking portion 90 and the first sealing layer 71 are arranged so as not to overlap on the substrate 10, the presence of the blocking portion 90 acts to restrict the position of the second sealing layer 72, thereby reducing the risk of the second sealing layer 72 overflowing.
[0082] In some embodiments, as shown in FIG. 7, the third encapsulation layer 73 is located on the side of the blocking portion 90 that faces away from the substrate 10 and covers at least a portion of the structure of the blocking portion 90 .
[0083] Unlike the first sealing layer 71, the third sealing layer 73 may have an entire structure, and the third sealing layer 73 may be partially located within the second region A2. Based on this, in the embodiment of the present application, the third sealing layer 73 covers at least a part of the structure of the blocking portion 90, so that the third sealing layer 73 can cooperate with the blocking portion 90 to restrict the position of the second sealing layer 72.
[0084] 8, in some embodiments, the display panel further includes a gate electrode driving circuit located in the second area A2, and at least a portion of the blocking portion 90 is located on a side of the gate electrode driving circuit away from the substrate 10. Here, the gate electrode driving circuit may include a light-emitting control circuit D2.
[0085] The display panel contains multiple other film layer structures, some of which have a certain degree of fluidity due to factors such as material composition. In order to achieve an effective blocking effect on such film layer structures, the display panel in the embodiment of the present application is further provided with a blocking section 90, which is located in the second area A2 and mainly serves to block the flow of some of the film layers away from the first area A1 of the blocking section 90, thereby improving the reliability of the internal structure of the display panel.
[0086] Typically, a fluid film layer structure itself has a certain thickness, and the thickness of this type of film layer structure gradually decreases toward the edge of the display panel. Therefore, if the blocking portion 90 is located closer to the first region A1, the size of the blocking portion 90 in the thickness direction Z must be increased to meet the blocking needs, which is disadvantageous to the overall thickness design of the display panel. Therefore, the blocking portion 90 is usually located far from the first region A1. Furthermore, in the related art, the blocking portion 90 is located on the side of the light-emitting control circuit D2 that is far from the first region A1.
[0087] The gate electrode driving circuit is located in the second region A2, and the blocking portion 90 is located on the side of the gate electrode driving circuit away from the first region A1; that is, the blocking portion 90 and the gate electrode driving circuit are arranged parallel to each other and spaced apart in the planar direction in which the substrate 10 is located.
[0088] In the embodiment of the present application, the isolation structure 20 is surrounded by a plurality of opening structures 21, and at least some of the opening structures 21 can accommodate a fluid film layer structure, so that the presence of the isolation structure 20 can reduce the thickness of some of the film layers in the second region A2. Based on this, in the embodiment of the present application, the blocking portion 90 can be appropriately moved toward the first region A1 without excessively increasing its height, and at least a portion of it can be positioned away from the substrate 10 of the gate electrode driving circuit, thereby solving the problem of the excessively large distance between the blocking portion 90 and the first region A1 resulting in an excessively large frame size of the display panel, i.e., helping to reduce the frame size of the display panel and improve the display effect.
[0089] Furthermore, optionally, at least a part of the blocking portion 90 may be located on the side of the light-emission control circuit D2 that is farther away from the substrate 10.
[0090] The blocking portion 90 may be located entirely on the side of the light-emitting control circuit D2 that is away from the substrate 10, or a portion of the blocking portion 90 may be located on the side of the light-emitting control circuit D2 that is away from the substrate 10 and another portion of the blocking portion 90 may be located on the side of the light-emitting control circuit D2 that is away from the first region A1 ... and this is not limited to the embodiments of the present application. Here, because the light-emitting control circuit D2 itself has a certain thickness, the presence of the light-emitting control circuit D2 contributes to reducing the height of at least a portion of the blocking portion 90 that is located on the side of the light-emitting control circuit D2 that is away from the substrate 10, thereby reducing the material cost corresponding to the blocking portion 90 and improving practicality.
[0091] In some embodiments, the display panel further includes a second encapsulation layer 72 disposed on the side of the light-emitting functional layer away from the substrate 10, the second encapsulation layer 72 including an organic material. Furthermore, the second encapsulation layer 72 may be partially located within the aperture structure 21.
[0092] The second sealing layer 72 is located on the side of the light-emitting functional layer away from the substrate 10, i.e., on the light-emitting surface side of the light-emitting structure 31. A part of the second sealing layer 72 is located in the first region A1, and another part is located in the second region A2. The second sealing layer 72 mainly serves to seal and protect the light-emitting structure 31, reducing the risk of moisture, oxygen, etc. entering the light-emitting structure 31 and improving the light-emitting reliability of the display panel.
[0093] The second sealing layer 72 contains an organic material and has a certain fluidity. However, the second sealing layer 72 can be partially positioned within the opening structure 21, so that the opening structure 21 can provide a certain overflow accommodation function for the second sealing layer 72, thereby reducing the thickness size of the second sealing layer 72 in the second region A2, and thus reducing the distance between the blocking portion 90 and the first region A1, and at least a portion of it can be positioned on the side away from the substrate 10 of the light-emitting control circuit D2, which helps to achieve a narrow-bezel display effect for the display panel.
[0094] In some embodiments, as shown in FIG. 8, the display panel further includes a first sealing layer 71 disposed between the second sealing layer 72 and the light-emitting functional layer, and a third sealing layer 73 located on the side of the second sealing layer 72 away from the substrate 10, and the first sealing layer 71 and the third sealing layer 73 include inorganic materials.
[0095] The first encapsulating layer 71 and the third encapsulating layer 73 are located on both sides of the second encapsulating layer 72 in the thickness direction Z, and the first encapsulating layer 71, the second encapsulating layer 72, and the third encapsulating layer 73 together form a thin film encapsulation structure to improve the encapsulation and protection effect for the light-emitting functional layer. Here, the first encapsulating layer 71 and the third encapsulating layer 73 both contain inorganic materials, and the first encapsulating layer 71 and the third encapsulating layer 73 can perform a certain positional restriction and blocking function for the second encapsulating layer 72.
[0096] Further optionally, the first sealing layer 71 includes a plurality of first sealing portions 711 each arranged within the opening structure 21, and the first sealing portions 711 and the blocking portions 90 are arranged parallel to each other and spaced apart in the direction in which the substrate 10 is located.
[0097] Due to the presence of the isolation structure 20, the sealing material for forming the first sealing portion 711 also falls into the opening structure 21, thereby forming a plurality of first sealing portions 711 corresponding to the opening structure 21, where different first sealing portions 711 are spaced apart from each other.
[0098] In the embodiment of the present application, the presence of the blocking portion 90 serves to prevent overflow of the second sealing layer 72, thereby reducing the risk of the second sealing layer 72 extending away from the first region A1 of the blocking portion 90 and improving the sealing reliability of the display panel.
[0099] In some embodiments, the third sealing layer 73 is partially located on the side of the blocking portion 90 away from the substrate 10, i.e., the third sealing layer 73 can extend from the first region A1 to the second region A2 and cover at least part of the structure of the blocking portion 90.
[0100] In such a design, the blocking portion 90 cooperates with the third sealing layer 73 to jointly perform the role of limiting the position and blocking the second sealing layer 72, further reducing the risk of the second sealing layer 72 extending away from the first region A1, and improving the sealing reliability of the display panel.
[0101] In some embodiments, as shown in FIG. 8, the gate electrode driving circuit further includes a scanning driving circuit D1 located between the light emitting control circuit D2 and the first region A1, and the blocking portion 90 is located on the side of the scanning driving circuit D1 away from the first region A1, or the blocking portion 90 is located on the side of the scanning driving circuit D1 away from the substrate 10.
[0102] The scanning driving circuit D1 and the light emitting control circuit D2 may each include a multi-stage shift register cascaded to each other, which can sequentially scan the pixel circuits of each row located in the first area A1 and sequentially output an ON level to meet display needs.
[0103] The scan driving circuit D1 and the light-emitting control circuit D2 are both located in the second region A2, with the scan driving circuit D1 located closer to the first region A1 than the light-emitting control circuit D2. Because the distance between the scan driving circuit D1 and the first region A1 is short, in order to ensure the blocking effect of the blocking unit 90 against overflow into the first sealing layer 71, in this embodiment, the blocking unit 90 is further provided on the side of the scan driving circuit D1 away from the first region A1. That is, the distance between the blocking unit 90 and the first region A1 is greater than the distance between the scan driving circuit D1 and the first region A1. This ensures a constant distance between the blocking unit 90 and the first region A1, thereby improving the blocking effect of the blocking unit 90 against overflow into the first sealing layer 71 without increasing the height of the blocking unit 90.
[0104] Alternatively, if the opening structure 21 can accommodate a large amount of organic material in the first sealing layer 71, the blocking portion 90 can be located on the side of the scanning driving circuit D1 away from the substrate 10, thereby further realizing a narrower frame of the display panel and improving the display effect.
[0105] In some embodiments, the orthogonal projection of the substrate and the orthogonal projection of the light emission control circuit D2 on the substrate at least partially overlap, or the orthogonal projection of the blocking portion 90 on the substrate and the orthogonal projection of the light emission control circuit D2 on the substrate are offset and adjacent to each other.
[0106] In some embodiments, the display panel further includes a second insulating portion 91 disposed between the light-emitting control circuit D2 and at least a portion of the blocking portion 90, as shown in FIG.
[0107] The second insulating portion 91 may cover at least a portion of the structure of the light-emitting control circuit D2. For example, the orthogonal projection of the second insulating portion 91 on the substrate covers the orthogonal projection of the light-emitting control circuit D2 on the substrate. As a result, after the manufacture of the light-emitting control circuit D2 is completed, the second insulating portion 91 serves to isolate the light-emitting control circuit D2 from the air. During the manufacturing process of subsequent metal layers, etc., the second insulating portion 91 serves to protect the light-emitting control circuit D2, thereby reducing the risk of over-etching of the light-emitting control circuit D2 and improving reliability.
[0108] Furthermore, the second insulating portion 91 insulates and separates the blocking portion 90 from the light-emission control circuit D2, thereby improving the operational reliability of the light-emission control circuit D2. As can be seen from the above, the blocking portion 90 may be located entirely on the side of the light-emission control circuit D2 that is away from the substrate 10, or a portion of the blocking portion 90 may be located on the side of the light-emission control circuit D2 that is away from the substrate 10, and another portion of the blocking portion 90 may be located on the side of the light-emission control circuit D2 that is away from the first region A1 of the light-emission control circuit D2. In light of this, the second insulating portion 91 may be located entirely on the side of the light-emission control circuit D2 that is away from the substrate 10, or a portion of the second insulating portion 91 may be located on the side of the light-emission control circuit D2 that is away from the substrate 10, and another portion of the second insulating portion 91 may be located on the side of the light-emission control circuit D2 that is away from the first region A1 of the light-emission control circuit D2.
[0109] When the blocking portion 90 is located on the side away from the substrate 10 of the light-emitting control circuit D2, the second insulating portion 91 can increase the distance between the blocking portion 90 and the substrate 10, thereby reducing the height size required for the blocking portion 90 and the corresponding material cost, and making it more practical.
[0110] In some alternative embodiments, the orthogonal projection of the blocking portion 90 on the substrate 10 is located within the orthogonal projection of the second insulating portion 91 on the substrate 10. This further improves the insulating effect of the second insulating portion 91 between the blocking portion 90 and the light-emission control circuit D2, thereby improving reliability. Furthermore, the presence of the second insulating portion 91 increases the distance between the blocking portion 90 and the substrate 10, thereby reducing the height of the blocking portion 90 and reducing the material costs associated with the blocking portion 90.
[0111] Further optionally, the orthogonal projection of the blocking portion 90 on the substrate 10 is located within the orthogonal projection of the light emission control circuit D2 on the substrate 10.
[0112] 9, in some embodiments, the second insulating portion 91 extends from the first region A1 to the second region A2, and the orthogonal projection of the second insulating portion 91 on the substrate 10 covers the orthogonal projection of the light-emitting control circuit D2 on the substrate 10. That is, the second insulating portion 91 is located in a substructure in the first region A1, and the second insulating portion 91 is integrally connected to the substructure located in the second region A2.
[0113] In the present application, by extending the second insulating portion 91 from the first region A1 into the second region A2, the second insulating portion 91 not only serves to provide insulation and isolation between different conductive structures in the first region A1, but also serves to cover and protect the light-emitting control circuit D2 in the second region A2, thereby improving the reliability of the display panel. Optionally, the second insulating portion 91 may also serve as a planarization layer, which can provide a flat surface, thereby reducing the difficulty of subsequent manufacturing of the display panel and improving the manufacturing precision of the display panel, thereby improving practicality.
[0114] In some embodiments, referring to FIG. 10, the blocking portion 90 includes a plurality of blocking pillars 92 spaced apart, at least some of the blocking pillars 92 being located on the side of the light emission control circuit D2 away from the substrate 10.
[0115] From the above, the presence of the isolation structure 20 allows the gap between the blocking portion 90 and the first area A1 to be appropriately small, and at least a portion of the blocking portion 90 is located on the side of the light-emitting control circuit D2 that is away from the substrate 10. Based on this, and on the premise of meeting the need for a narrow frame of the display panel, the blocking portion 90 is provided with a plurality of blocking pillars 92 spaced apart, and each blocking pillar 92 serves to prevent overflow from the first sealing layer 71, thereby further reducing the tendency of the first sealing layer 71 to move away from the substrate 10, and improving sealing reliability.
[0116] The positional relationship between each blocking pillar 92 and the light-emitting control circuit D2 is not limited to the embodiment of the present application. For example, at least some of the blocking pillars 92 may be located on the side of the light-emitting control circuit D2 that is farther from the substrate 10, or some of the blocking pillars 92 may be located on the side of the light-emitting control circuit D2 that is farther from the first region A1, or some of the blocking pillars 92 may be located on the side of the light-emitting control circuit D2 that is closer to the first region A1.
[0117] In some alternative embodiments, all of the blocking pillars 92 are located on the side of the light-emitting control circuit D2 that is farther from the substrate 10, which is advantageous for improving the pitch between the blocking pillars 92 and the substrate 10 in the thickness direction Z so as to reduce the overall height of the blocking section 90, thereby reducing the material cost corresponding to the blocking pillars 92 and improving practicality. Of course, in some other embodiments, only some of the blocking pillars 92 may be located on the side of the light-emitting control circuit D2 that is farther from the substrate 10.
[0118] In addition, the number of blocking posts 92 is not limited in the embodiment of the present application. Optionally, the number of blocking posts 92 is greater than 2. Illustratively, the number of blocking posts 92 is 3, 4, 5, etc.
[0119] In some embodiments, referring to FIG. 7, the display panel further includes a light-emitting control circuit D2 located in the second region A2, and both the light-emitting control circuit D2 and the blocking unit 90 are located on the substrate 10, and the light-emitting control circuit D2 and the blocking unit 90 are arranged adjacent to each other, i.e., there is no first signal line 60 between the light-emitting control circuit D2 and the blocking unit 90.
[0120] 11 , in some embodiments, the display panel further includes a light-emitting control circuit D2 located in the second area A2, and at least a portion of the blocking portion 90 is located on a side of the light-emitting control circuit D2 that is away from the substrate 10. For example, the entire blocking portion 90 is located on a side of the light-emitting control circuit D2 that is away from the substrate 10, or a portion of the blocking portion 90 is located on a side of the light-emitting control circuit D2 that is away from the substrate 10, and the other portion of the blocking portion 90 is located on the substrate 10. There may be multiple blocking portions 90, and the blocking portion 90 closest to the first area A1 has at least a portion located on a side of the light-emitting control circuit D2 that is away from the substrate 10.
[0121] The light emitting control circuit D2 is located in the second area A2, and may include a multi-stage shift register cascade-connected to each other, which can sequentially scan the pixel circuits of each row located in the first area A1 and sequentially output an ON level to meet display needs.
[0122] In the related art, taking into consideration the fluidity of the second sealing layer 72, the blocking portion 90 usually needs to be spaced farther from the first region A1 so that a blocking portion 90 of a certain height size can effectively block the second sealing layer 72. Therefore, the blocking portion 90 is usually located on the side away from the first region A1 of the scanning driving circuit D1, which also affects the frame size of the display panel and is detrimental to the display effect.
[0123] In the present embodiment, the presence of the isolation structure 20 allows a portion of the second sealing layer 72 to fall into the opening structure 21, so that the opening structure 21 can provide a certain overflow function to the second sealing layer 72. Based on this, even if the distance between the blocking portion 90 and the first area A1 in the first direction X is reduced, the blocking portion 90 can still provide an effective blocking function to the second sealing layer 72 and reduce the risk of overflow. Therefore, in the present embodiment, at least a portion of the blocking portion 90 is provided on the side of the light-emitting control circuit D2 that is away from the substrate 10.
[0124] In this design, the blocking portion 90 effectively blocks the second sealing layer 72, reducing the risk of overflow of the second sealing layer 72 and improving the sealing reliability. At the same time, the blocking portion 90 contributes to reducing the distance between the blocking portion 90 and the first area A1, thereby reducing the impact of the blocking portion 90 on the frame size and further improving the narrow frame effect.
[0125] In some embodiments, the display panel further includes a second insulating part 91 located between the blocking part 90 and the light-emitting control circuit D2. The second insulating part 91 may cover at least a portion of the structure of the light-emitting control circuit D2. Thus, after the fabrication of the light-emitting control circuit D2 is completed, the second insulating part 91 serves to isolate the light-emitting control circuit D2 from the air and protect the light-emitting control circuit D2 during subsequent fabrication processes such as metal layers, thereby reducing the risk of over-etching the light-emitting control circuit D2 and improving reliability.
[0126] Furthermore, in the embodiment of the present application, the second insulating portion 91 insulates and separates the blocking portion 90 from the light-emission control circuit D2, thereby improving the operational reliability of the light-emission control circuit D2. Here, the second insulating portion 91 may be completely located on the side of the light-emission control circuit D2 that is away from the substrate 10, or the second insulating portion 91 may be partially located on the side of the light-emission control circuit D2 that is away from the first region A1.
[0127] Furthermore, when the blocking portion 90 is located on the side away from the substrate 10 of the light-emitting control circuit D2, the second insulating portion 91 can increase the distance between the blocking portion 90 and the substrate 10, thereby reducing the height size required for the blocking portion 90 and the corresponding material cost, and making it more practical.
[0128] In some embodiments, the display panel further includes a pixel definition layer 80 on the substrate 10 side of the isolation structure 20, the pixel definition layer 80 including a pixel definition portion 81 and a pixel opening 82 formed by and surrounding the pixel definition portion 81, and the light-emitting structure 31 is at least partially located within the pixel opening 82.
[0129] The pixel definition layer 80 includes a pixel definition portion 81 and a pixel opening 82, and the pixel opening 82 is provided corresponding to the opening structure 21. For example, the orthogonal projection of the pixel opening 82 on the substrate 10 may be located within the orthogonal projection of the opening structure 21 on the substrate 10, and the partial structures of the light-emitting structure 31 and the first electrode 41 may be located within the pixel opening 82.
[0130] 10 , the display panel further includes a pixel definition layer 80, and the isolation structure 20 is provided on a side of the pixel definition layer 80 away from the substrate 10 or in an aperture in the pixel definition layer 80, which may be a through-hole or a blind hole in the pixel definition layer 80. The pixel definition layer 80 includes a pixel defining portion 81 and a pixel opening 82 surrounded by the pixel defining portion 81, and the light-emitting structure 31 is at least partially located within the pixel opening 82.
[0131] The pixel definition layer 80 includes a pixel definition portion 81 and a pixel opening 82, and the pixel opening 82 is provided corresponding to the opening structure 21. For example, the orthogonal projection of the pixel opening 82 on the substrate 10 may be located within the orthogonal projection of the opening structure 21 on the substrate 10, and the partial structures of the light-emitting structure 31 and the first electrode 41 may be located within the pixel opening 82.
[0132] In some embodiments, portions of pixel defining layer 80 are located on the side of blocking portion 90 away from substrate 10 .
[0133] For the above reasons, due to the presence of isolation structure 20, first encapsulating layer 71 is stopped near the boundary between first area A1 and second area A2, and therefore, first encapsulating layer 71 cannot provide an effective shielding effect for second encapsulating layer 72 in second area A2. Based on this, a portion of pixel definition layer 80 is arranged to cover blocking portion 90, i.e., pixel definition portion 81 plays a role in shielding and limiting the position of second encapsulating layer 72 in second area A2, thereby ensuring the reliability of the internal structure of the display panel.
[0134] In some embodiments, the pixel definition layer 80 extends from the first region A1 to the second region A2, i.e., the substructure where the pixel definition layer 80 is located in the first region A1 is integrally connected to the substructure where the pixel definition layer 80 is located in the second region A2.
[0135] In some embodiments, the orthogonal projection of the light emission control circuit D2 on the substrate 10 is located within the orthogonal projection of the pixel definition layer 80 on the substrate 10, and / or the orthogonal projection of the blocking portion 90 on the substrate 10 is located within the orthogonal projection of the outer edge of the pixel definition layer 80 on the substrate 10.
[0136] In the related art, the pixel definition layer 80 is separated into a partial structure located in the first region A1 and a partial structure located in the second region A2. In the embodiment of the present application, the pixel definition layer 80 extends from the first region A1 to the second region A2, i.e., the pixel definition layer 80 has an entire surface structure and can be located between the first region A1 and the second region A2. This design allows the pixel definition layer 80 to better cover the underlying conductor structures, such as the light-emitting control circuit D2, and improves the manufacturing reliability of the display panel.
[0137] Furthermore, the pixel defining layer 80 comprises an inorganic material.
[0138] Compared with organic materials, inorganic materials have the inherent property of being able to inhibit a certain flow of the first encapsulating layer 71. Therefore, the pixel defining layer 80 containing an inorganic material serves to delay overflow of the first encapsulating layer 71, allowing the blocking portion 90 to be disposed closer to the first region A1, thereby improving the narrow frame effect of the display panel. For example, the pixel defining layer 80 may contain a silicon nitride material.
[0139] 8 , an embodiment of the present application provides a display panel having a first region A1 and a second region A2 surrounding the first region A1, the display panel including a substrate 10, an isolation structure 20, a light-emitting functional layer, a gate electrode driving circuit, and a blocking portion 90, the isolation structure 20 being disposed on one side of the substrate 10, and the isolation structure 20 forming a plurality of aperture structures 21 spaced apart from each other, the light-emitting functional layer being disposed on one side of the substrate 10 and located in the first region A1, the light-emitting functional layer including a plurality of light-emitting structures 31 respectively disposed in the plurality of aperture structures 21, and at least one light-emitting structure 31 being disposed in each aperture structure 21. For example, one light-emitting structure 31 may be disposed in each aperture structure 21, or multiple light-emitting structures 31 of the same emission color may be disposed in each aperture structure 21.
[0140] The gate electrode driving circuit is located in the second region A2, the blocking portion 90 is provided in the second region A2, and at least a part of the blocking portion 90 is located on the side of the gate electrode driving circuit that is away from the substrate 10. Here, the gate electrode driving circuit may include a light-emitting control circuit D2. An orthogonal projection of at least a part of the blocking portion 90 on the substrate 10 overlaps with an orthogonal projection of the gate electrode driving circuit on the substrate.
[0141] The display panel has at least two regions: a first region A1, which is a display region for realizing the display effect of the display panel, and a second region A2, which is a non-display region surrounding the first region A1 and is mainly used to arrange the driving circuitry of the display panel. The second region A2 is a non-display region. The sizes and shapes of the first region A1 and the second region A2 are not limited in the embodiments of the present application. For example, the first region A1 may have a rectangular structure, and the second region A2 may have a rectangular structure with rounded corners.
[0142] The substrate 10 mainly functions as a support, and the other film layers are sequentially stacked on the substrate 10, where "stacked" refers to the other film layers being sequentially stacked along the thickness direction Z of the substrate 10. The substrate 10 may include multiple film layer structures, and the specific film layer structure of the substrate 10 is not limited to this in the embodiments of the present application. Note that the thickness direction Z of the other film layers located on the substrate 10 side generally coincides with the thickness direction Z of the substrate 10 itself, so for convenience of explanation, the thickness direction Z of the substrate 10 or the thickness direction Z of the other film layers in the following embodiments of the present application will all be shown in the same direction.
[0143] The light-emitting functional layer and the isolation structure 20 are located on the same side of the substrate 10. The light-emitting functional layer is located in the first region A1 and includes a plurality of light-emitting structures 31, which are main devices for realizing light-emitting display. Here, 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), which are stacked one on the other.
[0144] Optionally, the display panel may further include a first electrode layer 40 located on a side of the light-emitting functional layer away from the substrate 10. The display panel may further include a second electrode layer 50 located on a side of the light-emitting functional layer facing the substrate 10, the first electrode layer 40 being provided with a first electrode 41, the second electrode layer 50 being provided with a second electrode 51, the number of the second electrodes 51 being plural, the plural second electrodes 51 being provided corresponding to the light-emitting structures 31, the first electrode 41 and the second electrode 51 jointly driving and controlling whether the light-emitting structures 31 emit light. Exemplarily, the first electrode 41 is a cathode, and the second electrode 51 is an anode.
[0145] The isolation structure 20 can surround and form a plurality of aperture structures 21. For example, the isolation structure 20 has a mesh-like structure when orthogonally projected onto the substrate 10. The light-emitting structures 31 are respectively disposed within the plurality of aperture structures 21, i.e., the orthogonal projections of the light-emitting structures 31 on the substrate 10 correspond to the orthogonal projections of the aperture structures 21 on the substrate 10, and the orthogonal projections of the light-emitting structures 31 on the substrate 10 are at least partially located within the orthogonal projections of the aperture structures 21 on the substrate 10. Furthermore, the presence of the isolation structure 20 can cancel out a precision metal mask during the manufacturing process of the light-emitting functional layer.
[0146] Specifically, taking the example of manufacturing the red light-emitting structure 31 before the green light-emitting structure 31, in order to cancel out the precision metal mask, the red light-emitting material corresponding to the red light-emitting structure 31 is first dropped into each opening structure 21, and then the red light-emitting material in some of the opening structures 21 is selectively etched away, and the red light-emitting material in some of the opening structures 21 is reserved to form the red light-emitting structure 31. Then, the green light-emitting material corresponding to the green light-emitting structure 31 is dropped into each opening structure 21, and then the green light-emitting material in some of the opening structures 21 is selectively etched away, and the green light-emitting material in some of the opening structures 21 is reserved to form the green light-emitting structure 31.
[0147] Similarly, due to the presence of the isolation structure 20, the first electrode layer 40 may include a plurality of first electrodes 41 each arranged within the opening structure 21, i.e., the plurality of first electrodes 41 may be arranged corresponding to a plurality of light-emitting structures 31 to realize driving control for the light-emitting structures 31.
[0148] The display panel contains multiple other film layer structures, some of which have a certain degree of fluidity due to factors such as material composition. In order to achieve an effective blocking effect on such film layer structures, the display panel in the embodiment of the present application is further provided with a blocking section 90, which is located in the second area A2 and mainly serves to block the flow of some of the film layers away from the first area A1 of the blocking section 90, thereby improving the reliability of the internal structure of the display panel.
[0149] Typically, a fluid film layer structure itself has a certain thickness, and the thickness of this type of film layer structure gradually decreases toward the edge of the display panel. Therefore, if the blocking portion 90 is located closer to the first region A1, the size of the blocking portion 90 in the thickness direction Z must be increased to meet the blocking needs, which is disadvantageous to the overall thickness design of the display panel. Therefore, the blocking portion 90 is usually located far from the first region A1. Furthermore, in the related art, the blocking portion 90 is located on the side of the light-emitting control circuit D2 that is far from the first region A1.
[0150] The gate electrode driving circuit is located in the second area A2, and the blocking section 90 is located on the side of the gate electrode driving circuit away from the first area A1, i.e., the blocking section 90 and the gate electrode driving circuit are provided parallel to and spaced apart in the plane direction in which the substrate 10 is located. The orthogonal projection of the blocking section 90 on the substrate 10 is provided adjacent to the orthogonal projection of the gate electrode driving circuit on the substrate 10.
[0151] In the embodiment of the present application, the isolation structure 20 is surrounded by a plurality of opening structures 21, and at least some of the opening structures 21 can accommodate a fluid film layer structure, so that the presence of the isolation structure 20 can reduce the thickness of some of the film layers in the second region A2. Based on this, in the embodiment of the present application, the blocking portion 90 can be appropriately moved toward the first region A1 without excessively increasing its height, and at least a portion of it can be positioned away from the substrate 10 of the gate electrode driving circuit, thereby solving the problem of the excessively large distance between the blocking portion 90 and the first region A1 resulting in an excessively large frame size of the display panel, i.e., helping to reduce the frame size of the display panel and improve the display effect.
[0152] Furthermore, at least a part of the blocking portion 90 is selectively located on the side of the light-emission control circuit D2 that is farther away from the substrate 10.
[0153] The blocking portion 90 may be located entirely on the side of the light-emitting control circuit D2 that is away from the substrate 10, or a portion of the blocking portion 90 may be located on the side of the light-emitting control circuit D2 that is away from the substrate 10 and another portion of the blocking portion 90 may be located on the side of the light-emitting control circuit D2 that is away from the first region A1 ... and this is not limited to the embodiments of the present application. Here, because the light-emitting control circuit D2 itself has a certain thickness, the presence of the light-emitting control circuit D2 contributes to reducing the height of at least a portion of the blocking portion 90 that is located on the side of the light-emitting control circuit D2 that is away from the substrate 10, thereby reducing the material cost corresponding to the blocking portion 90 and improving practicality.
[0154] In some embodiments, the display panel further includes a second encapsulation layer 72 disposed on the side of the light-emitting functional layer away from the substrate 10, the second encapsulation layer 72 including an organic material, and a portion located within the aperture structure 21.
[0155] The second sealing layer 72 is located on the side of the light-emitting functional layer away from the substrate 10, i.e., on the light-emitting surface side of the light-emitting structure 31. A part of the second sealing layer 72 is located in the first region A1, and another part is located in the second region A2. The second sealing layer 72 mainly serves to seal and protect the light-emitting structure 31, reducing the risk of moisture, oxygen, etc. entering the light-emitting structure 31 and improving the light-emitting reliability of the display panel.
[0156] The second sealing layer 72 contains an organic material and has a certain fluidity. However, the second sealing layer 72 can be partially positioned within the opening structure 21, so that the opening structure 21 can provide a certain overflow accommodation function for the second sealing layer 72, thereby reducing the thickness size of the second sealing layer 72 in the second region A2, and thus reducing the distance between the blocking portion 90 and the first region A1, and at least a portion of it can be positioned on the side away from the substrate 10 of the light-emitting control circuit D2, which helps to achieve a narrow-bezel display effect for the display panel.
[0157] In some embodiments, the display panel further includes a first sealing layer 71 disposed between the second sealing layer 72 and the light-emitting functional layer, and a third sealing layer 73 located on the side of the second sealing layer 72 away from the substrate 10, and the first sealing layer 71 and the third sealing layer 73 include inorganic materials.
[0158] The first encapsulating layer 71 and the third encapsulating layer 73 are located on both sides of the second encapsulating layer 72 in the thickness direction Z, and the first encapsulating layer 71, the second encapsulating layer 72, and the third encapsulating layer 73 together form a thin film encapsulation structure to improve the encapsulation and protection effect for the light-emitting functional layer. Here, the first encapsulating layer 71 and the third encapsulating layer 73 both contain inorganic materials, and the first encapsulating layer 71 and the third encapsulating layer 73 can perform a certain positional restriction and blocking function for the second encapsulating layer 72.
[0159] Further optionally, the first sealing layer 71 includes a plurality of first sealing portions 711 each arranged within the opening structure 21, and the first sealing portions 711 and the blocking portions 90 are arranged parallel to each other and spaced apart in the direction in which the substrate 10 is located.
[0160] Due to the presence of the isolation structure 20, the sealing material for forming the first sealing portion 711 also falls into the opening structure 21, thereby forming a plurality of first sealing portions 711 corresponding to the opening structure 21, where different first sealing portions 711 are spaced apart from each other.
[0161] In the embodiment of the present application, the presence of the blocking portion 90 serves to prevent overflow of the second sealing layer 72, thereby reducing the risk of the second sealing layer 72 extending away from the first region A1 of the blocking portion 90 and improving the sealing reliability of the display panel.
[0162] In some embodiments, the third sealing layer 73 is partially located on the side of the blocking portion 90 away from the substrate 10, i.e., the third sealing layer 73 can extend from the first region A1 to the second region A2 and cover at least part of the structure of the blocking portion 90.
[0163] In such a design, the blocking portion 90 cooperates with the third sealing layer 73 to jointly perform the role of limiting the position and blocking the second sealing layer 72, further reducing the risk of the second sealing layer 72 extending away from the first region A1, and improving the sealing reliability of the display panel.
[0164] In some embodiments, as shown in FIG. 2, the display panel further includes a scanning drive circuit D1 located between the light emitting control circuit D2 and the first area A1, and the blocking portion 90 is located on the side of the scanning drive circuit D1 away from the first area A1.
[0165] The scanning driving circuit D1 may include a multi-stage shift register cascaded to each other, which can sequentially scan the pixel circuits of each row located in the first area A1 and sequentially output an ON level to meet display needs.
[0166] The scan driving circuit D1 and the light-emitting control circuit D2 are both located in the second region A2, with the scan driving circuit D1 located closer to the first region A1 than the light-emitting control circuit D2. Because the distance between the scan driving circuit D1 and the first region A1 is short, in order to ensure the blocking effect of the blocking unit 90 against overflow into the first sealing layer 71, in this embodiment, the blocking unit 90 is further provided on the side of the scan driving circuit D1 away from the first region A1. That is, the distance between the blocking unit 90 and the first region A1 is greater than the distance between the scan driving circuit D1 and the first region A1. This ensures a constant distance between the blocking unit 90 and the first region A1, thereby improving the blocking effect of the blocking unit 90 against overflow into the first sealing layer 71 without increasing the height of the blocking unit 90.
[0167] In some embodiments, the display panel further includes a second insulating portion 91 disposed between the light-emitting control circuit D2 and at least a portion of the blocking portion 90.
[0168] The second insulating portion 91 may cover at least a portion of the structure of the light-emitting control circuit D2. For example, the orthogonal projection of the second insulating portion 91 on the substrate covers the orthogonal projection of the light-emitting control circuit D2 on the substrate. As a result, after the manufacture of the light-emitting control circuit D2 is completed, the second insulating portion 91 serves to isolate the light-emitting control circuit D2 from the air. During the manufacturing process of subsequent metal layers, etc., the second insulating portion 91 serves to protect the light-emitting control circuit D2, thereby reducing the risk of over-etching of the light-emitting control circuit D2 and improving reliability.
[0169] Furthermore, the second insulating portion 91 insulates and separates the blocking portion 90 from the light-emission control circuit D2, thereby improving the operational reliability of the light-emission control circuit D2. As can be seen from the above, the blocking portion 90 may be located entirely on the side of the light-emission control circuit D2 that is away from the substrate 10, or a portion of the blocking portion 90 may be located on the side of the light-emission control circuit D2 that is away from the substrate 10, and another portion of the blocking portion 90 may be located on the side of the light-emission control circuit D2 that is away from the first region A1 of the light-emission control circuit D2. In light of this, the second insulating portion 91 may be located entirely on the side of the light-emission control circuit D2 that is away from the substrate 10, or a portion of the second insulating portion 91 may be located on the side of the light-emission control circuit D2 that is away from the substrate 10, and another portion of the second insulating portion 91 may be located on the side of the light-emission control circuit D2 that is away from the first region A1 of the light-emission control circuit D2.
[0170] When the blocking portion 90 is located on the side away from the substrate 10 of the light-emitting control circuit D2, the second insulating portion 91 can increase the distance between the blocking portion 90 and the substrate 10, thereby reducing the height size required for the blocking portion 90 and the corresponding material cost, and making it more practical.
[0171] In some alternative embodiments, the orthogonal projection of the blocking portion 90 on the substrate 10 is located within the orthogonal projection of the second insulating portion 91 on the substrate 10. This further improves the insulating effect of the second insulating portion 91 between the blocking portion 90 and the light-emission control circuit D2, thereby improving reliability. Furthermore, the presence of the second insulating portion 91 increases the distance between the blocking portion 90 and the substrate 10, thereby reducing the height of the blocking portion 90 and reducing the material costs associated with the blocking portion 90.
[0172] Further optionally, the orthogonal projection of the blocking portion 90 on the substrate 10 is located within the orthogonal projection of the light emission control circuit D2 on the substrate 10.
[0173] 9, in some embodiments, the second insulating portion 91 extends from the first region A1 to the second region A2, and the orthogonal projection of the second insulating portion 91 on the substrate 10 covers the orthogonal projection of the light-emitting control circuit D2 on the substrate 10. That is, the second insulating portion 91 is located in a substructure in the first region A1, and the second insulating portion 91 is integrally connected to the substructure located in the second region A2.
[0174] In the present application, by extending the second insulating portion 91 from the first region A1 into the second region A2, the second insulating portion 91 not only serves to provide insulation and isolation between different conductive structures in the first region A1, but also serves to cover and protect the light-emitting control circuit D2 in the second region A2, thereby improving the reliability of the display panel. Optionally, the second insulating portion 91 may also serve as a planarization layer, which can provide a flat surface, thereby reducing the difficulty of subsequent manufacturing of the display panel and improving the manufacturing precision of the display panel, thereby improving practicality.
[0175] In some embodiments, the display panel further includes a first signal line 60 located in the second region A2 and a first electrode 41 located on the side of the light-emitting structure 31 away from the substrate, and the first signal line 60 is electrically connected to the first electrode 41 via the isolation structure 20.
[0176] In this embodiment, the first signal line 60 is not directly connected to the first electrodes 41 but transmits power signals to each first electrode 41 via the isolation structure 20. Specifically, the isolation structure 20 itself is provided corresponding to each first electrode 41, enabling signal transmission therebetween. Therefore, the first signal line 60 does not need to extend to the position of each first electrode 41; that is, the first signal line 60 does not need to be provided so as to surround each first electrode 41. Instead, the first signal line 60 only needs to be provided on one side of the isolation structure 20 in the first direction X and electrically connected to the isolation structure 20. In this way, the power signal within the first signal line 60 can be transmitted to each first electrode 41 via the isolation structure 20, thereby satisfying the signal transmission needs. Furthermore, because the first signal line 60 is provided on one side of the isolation structure 20 in the first direction X and is not a ring-shaped structure, it contributes to reducing the frame size of the display panel and improving the display effect.
[0177] Furthermore, in some alternative embodiments, the first signal line 60 is located on one side of the isolation structure 20 along a first direction X, which is parallel to the plane in which the substrate 10 is located.
[0178] The specific wiring form of the first signal lines 60 is not limited to the embodiment of the present application. Depending on the actual situation, the first signal lines 60 may be located entirely on one side of the isolation structure 20 along the first direction X, or a small number of first signal lines 60 may be located on the other side of the isolation structure 20 along a different direction, as long as most of the first signal lines 60 are located on the same side of the isolation structure 20.
[0179] In some embodiments, referring to FIGS. 2, 3 and 7, the orthogonal projection of the blocking portion 90 on the substrate 10 and the orthogonal projection of the first signal line 60 on the substrate 10 are misaligned.
[0180] The blocking portion 90 is located in the second region A2, and is usually located at the edge position of the display panel. As can be seen from the above, the second sealing layer 72 contains an organic material, and the organic material contained in the second sealing layer 72 usually has a certain fluidity. In order to reduce the risk of the organic material in the second sealing layer 72 overflowing, the blocking portion 90 is usually provided at the edge position of the display panel. The presence of the blocking portion 90 can reduce the risk of overflow and improve the reliability of the display panel.
[0181] Furthermore, the first signal line 60 is located on one side of the isolation structure 20 only in the first direction X, and is not provided to surround the periphery of the isolation structure 20, so that the first signal line 60 is not present in a partial position in the second region A2. Based on this, the orthogonal projection of the blocking portion 90 on the substrate 10 and the orthogonal projection of the first signal line 60 on the substrate 10 are distributed in a misaligned position, that is, the first signal line 60 does not affect the layout design of the blocking portion 90, which helps to reduce the risk of physical interference between them.
[0182] The specific arrangement of the blocking portion 90 is not limited to the embodiment of the present application. Optionally, the partial structure of the blocking portion 90 may be located on at least one side of the isolation structure 20 in the second direction Y.
[0183] In some embodiments, as shown in Figures 1 to 3, the isolation structure 20 includes a first isolation portion 22 and a second isolation portion 23 stacked sequentially along a direction away from the substrate 10, and the orthogonal projection of the first isolation portion 22 on the substrate 10 is located within the orthogonal projection of the second isolation portion 23 on the substrate 10.
[0184] The specific sizes and shapes of the first isolation portion 22 and the second isolation portion 23 are not limited in the embodiments of the present application. For example, the vertical cross section of the isolation structure 20 may be T-shaped. This design helps 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 manufacturing process of the light emitting functional layer and the first electrode layer 40, thereby realizing the manufacturing and mutual isolation of the light emitting structures 31 and the first electrodes 41 in different opening structures 21 without the need for a precise metal mask.
[0185] The material compositions of the first isolation portion 22 and the second isolation portion 23 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, as long as the first electrode 41 can transmit a signal through the isolation structure 20.
[0186] Furthermore, at least a portion of the first signal line 60 may be located within the second region A2, and the first signal line 60 may be located entirely within the second region A2, or the first signal line 60 may extend partially within the first region A1. Similarly, the isolation structure 20 may be located entirely within the first region A1, or the isolation structure 20 may extend partially within the second region A2, and the embodiments of the present application are not limited thereto.
[0187] In some embodiments, the first isolation portion 22 comprises a conductive material, and the first electrode 41 is provided in electrical connection with the first isolation portion 22 .
[0188] The first signal line 60 can transmit a power signal to the first electrode 41 via the first isolation portion 22, where the first electrode 41 may be in direct contact with the first isolation portion 22, or the first electrode 41 may be electrically connected to the first isolation portion 22 via another conductive structure, and the embodiments of the present application are not limited thereto.
[0189] In this embodiment, by disposing a conductive material within the first isolation portion 22, the first signal line 60 can transmit a power signal to the first electrode 41 via the first isolation portion 22, thereby satisfying the need for signal transmission. Furthermore, by providing an extension path for the first isolation portion 22 within the first area A1, the first isolation portion 22 can extend to the range of each area within the first area A1. Therefore, the first signal line 60 only needs to be disposed on one side of the isolation structure 20 along the first direction X, and there is no need for the first signal line 60 to be disposed so as to surround the first area A1, thereby reducing the frame size of the display panel.
[0190] The positional relationship between the first signal line 60 and the first isolation portion 22 is not limited in this embodiment of the present application. In some examples, at least a portion of the first signal line 60 may contact the first isolation portion 22, i.e., the power signal in at least a portion of the first signal line 60 may be directly transmitted into the first isolation portion 22. Furthermore, if the isolation structure 20 further includes another conductive structure electrically connected to the first isolation portion 22, the first signal line 60 may contact the other conductive structure.
[0191] In some embodiments, referring to FIG. 4 , the isolation structure 20 further 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 including a conductive material and electrically connected to the first isolation portion 22.
[0192] The isolation structure 20 includes at least a first isolation portion 22, a second isolation portion 23, and a third isolation portion 24, and the embodiments of the present application are not limited to the sizes and shapes of the first isolation portion 22, the second isolation portion 23, and the third isolation portion 24. For example, the orthogonal projection of the first isolation portion 22 on the substrate 10 is located within the orthogonal projection of the third isolation portion 24 on the substrate 10, i.e., the vertical cross-sectional shapes of the first isolation portion 22, the second isolation portion 23, and the third isolation portion 24 are U-shaped.
[0193] Similar to the first isolation portion 22, the third isolation portion 24 also includes a conductive material, and the first electrode 41 can be in direct contact with the third isolation portion 24 to achieve electrical connection with the first isolation portion 22 through the third isolation portion 24. Optionally, the first electrode 41 is connected to the third isolation portion 24 in an overlapping manner. Furthermore, the first electrode 41 may be partially located on the side of the third isolation portion 24 that is away from the substrate 10, and the provision 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.
[0194] 7 , an embodiment of the present 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, a light-emitting control circuit D2, and a blocking unit 90. The isolation structure 20 is provided on one side of the substrate 10, and the isolation structure 20 forms a plurality of aperture structures 21 spaced apart from each other. The light-emitting functional layer is provided on one side of the substrate 10 and is located within the first region A1. The light-emitting functional layer includes a plurality of light-emitting structures 31 respectively provided in the plurality of aperture structures 21, and each aperture structure 21 has at least one light-emitting structure 31. For example, each aperture structure 21 may have one light-emitting structure 31, or each aperture structure 21 may have multiple light-emitting structures 31 of the same emission color.
[0195] The light emission control circuit D2 is located within the second region A2, the blocking section 90 is provided within the second region A2, and at least a portion of the blocking section 90 is provided adjacent to the light emission control circuit D2.
[0196] In the embodiment of the present application, the isolation structure 20 is surrounded by a plurality of opening structures 21, and at least some of the opening structures 21 can accommodate a fluid film layer structure, so that the presence of the isolation structure 20 can reduce the thickness of some of the film layers in the second region A2. Based on this, in the embodiment of the present application, the blocking portion 90 can be appropriately moved toward the first region A1 without excessively increasing its height, and at least a portion of it can be positioned away from the substrate 10 of the gate electrode driving circuit, thereby solving the problem of the excessively large distance between the blocking portion 90 and the first region A1 resulting in an excessively large frame size of the display panel, i.e., helping to reduce the frame size of the display panel and improve the display effect.
[0197] 1 to 3 , an embodiment of the present application provides a display panel, the display panel having a first area A1 and a second area A2, the first area A1 including a display area, and the second area A2 including a lower frame area. The display panel includes a substrate 10, an isolation structure 20, a light-emitting functional layer, and a first signal line 60. The isolation structure 20 is provided on one side of the substrate 10 and is located in at least the first area A1. The isolation structure 20 forms a plurality of aperture structures 21 spaced apart from each other, the isolation structure 20 including a conductive material. The light-emitting functional layer is provided on one side of the substrate 10 and is located in the first area A1. The light-emitting functional layer includes a plurality of light-emitting structures 31 respectively located in the plurality of aperture structures 21, and each aperture structure 21 has at least one light-emitting structure 31. For example, each aperture structure 21 may have one light-emitting structure 31, or each aperture structure 21 may have multiple light-emitting structures 31 of the same emission color.
[0198] The 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 connected to the conductive material of the isolation structure 20, and the first direction X is the direction from the display area to the lower frame area.
[0199] In this embodiment, the first region A1 includes a display region, and the second region A2 includes a lower frame region, in which a driving chip may be provided. The first signal line 60 is located on one side of the first region A1 in the first direction X without surrounding the first region A1, and transmits signals to different positions in the first region A1 via the isolation structure 20, thereby satisfying the need for signal transmission. Furthermore, because the first signal line 60 is located on one side of the isolation structure 20 in the first direction X and does not have a ring structure, it contributes to reducing the frame size of the display panel and improving the display effect.
[0200] In a fifth aspect, referring to FIG. 12, an embodiment of the present application provides a display device, including the display panel of any of the above embodiments.
[0201] The display device according to the examples of the present application has the beneficial effects of the display panel in any of the above-described embodiments, and for specific details, please refer to the explanation of the beneficial effects of the display panel, and the explanation will be omitted in the examples of the present application.
[0202] The embodiments disclosed in the present application are as described above, but the above contents are merely embodiments adopted to facilitate understanding of the present application and are not used to limit the present invention. A person skilled in the art to which the present application pertains may make any modifications and changes to the embodiments and details without departing from the spirit and scope of the present application, but the scope of protection of the present application is based on the scope defined by the appended claims.
[0203] The above is merely a specific embodiment of the present application, and for the sake of convenience and conciseness, those skilled in the art can refer to the corresponding processes in the above method examples for the replacement of other connection forms described above, and the description will be omitted here. It should be understood that the scope of protection of the present application is not limited thereto, and that those skilled in the art can easily come up with various equivalent modifications or substitutions within the technical scope disclosed in the present application. These modifications or substitutions should be included in the scope of protection of the present application. [Explanation of symbols]
[0204] 10, substrate; 20, isolation structure; 21, opening structure; 22, first isolation portion; 23, second isolation portion; 24, third isolation portion; 25, first insulating portion; 26, first isolation structure; 27, second isolation structure; 28, insulating structure; 31, light-emitting structure; 40, first electrode layer; 41, first electrode; 50, second electrode layer; 51, second electrode; 60, first signal line; 71, first sealing layer; 711, first sealing portion; 72, second sealing layer; 73, third sealing layer; 80, pixel definition layer; 81, pixel definition portion; 82, pixel aperture; 90, interrupting section; 91, second insulating section; 92, interrupting column; D1, scanning drive circuit; D2, light emission control circuit; IC, driving chip; A1, first region; A2, second region; A21, first subregion; A22, second subregion; X, first direction; Y, second direction; Z, thickness direction.
Claims
1. A display panel having a first region, the display panel including a substrate, an isolation structure, a light-emitting functional layer, and a first signal line; the isolation structure is provided on one side of the substrate and is located at least in the first region, the isolation structure surrounds a plurality of opening structures, and the isolation structure includes a conductive material; the light-emitting functional layer is provided on one side of the substrate and is located within the first region, and the light-emitting functional layer includes a plurality of light-emitting structures respectively provided within the plurality of opening structures; the first signal line is located on one side of the isolation structure along a first direction, the first signal line being electrically connected to a conductive material of the isolation structure, the first direction being parallel to a plane on which the substrate is located; the display panel further includes a second region provided around the periphery of the first region, the display panel further includes a blocking portion provided in the second region, the blocking portion being provided such that an orthogonal projection of the first signal line on the substrate and an orthogonal projection of the first signal line on the substrate do not overlap with each other along a second direction, and the first direction intersects with the second direction; the display panel further includes a first sealing layer provided on a side of the light-emitting functional layer away from the substrate, wherein orthogonal projections of the first sealing layer and the blocking portion on the substrate do not overlap; the display panel further includes a third sealing layer provided on a side of the first sealing layer away from the substrate, the third sealing layer being located on a side of the blocking portion away from the substrate and covering at least a portion of a structure of the blocking portion. A display panel characterized by:
2. the isolation structure includes a first isolation portion and a second isolation portion sequentially stacked in a direction away from the substrate, wherein 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 located on a side of the light-emitting functional layer away from the substrate, the first electrode layer including a plurality of first electrodes provided in the plurality of opening structures, respectively; the first electrode is electrically connected to the first signal line via the isolation structure; the first isolation portion includes a conductive material, and the first electrode is electrically connected to the first isolation portion; At least a portion of the first signal line contacts the first isolation portion; the isolation structure further includes a third isolation portion located on one side of the substrate of the first isolation portion, the third isolation portion including a conductive material and electrically connected to the first isolation portion; the first electrode is connected to the third isolation portion in an overlapping manner; 2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.
3. the second isolation portion includes a conductive material; the first isolation portion is provided so as to be electrically connected to the second isolation portion, and at least a portion of the first signal line is provided so as to be in contact with the second isolation portion; the isolation structure further includes a first insulating portion provided between the first isolation portion and the second isolation portion, an etching selectivity of the first isolation portion relative to the second isolation portion is greater than 1; 3. The display panel according to claim 2.
4. The display panel further includes a driver chip provided in the second region and located on one side of the isolation structure along the first direction, the first signal line being electrically connected to the driver chip; the second region includes a first sub-region and a second sub-region located between the driver chip and the isolation structure, the first sub-region and the second sub-region being arranged side by side in the second direction, and the first direction intersecting with the second direction; the first signal line located in the first sub-region and the first signal line located in the second sub-region are insulated from each other; or the isolation structure includes a first isolation structure and a second isolation structure that are provided in isolation from each other, the first isolation structure and the second isolation structure are located in different sub-regions within the first region, and the first isolation structure and the second isolation structure have the same orthogonal projected area but different resistances; the different first signal lines are electrically connected to the first isolation structure and the second isolation structure, respectively; or the first isolation structure and the second isolation structure have different orthogonal projected areas on the substrate; and / or the first isolation structure and the second isolation structure have different cross-sectional sizes; the first isolation structure is spaced apart from the second isolation structure; the isolation structure further includes an insulating structure located between the first isolation structure and the second isolation structure; 2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.
5. The semiconductor device further includes a gate electrode drive circuit located within the second region, wherein at least a portion of the blocking portion is located on a side of the gate electrode drive circuit that is away from the substrate; the gate electrode drive circuit includes a light-emission control circuit in which at least a part of the blocking portion is located on a side away from the substrate, or a second sealing layer provided on a side of the light-emitting functional layer away from the substrate, the second sealing layer including an organic material; the display panel further includes a first sealing layer provided between the second sealing layer and the light-emitting function layer, and a third sealing layer located on a side of the second sealing layer away from the substrate, the first sealing layer and the third sealing layer including an inorganic material; the first sealing layer includes a plurality of first sealing portions each provided within the opening structure, the first sealing portions and the blocking portion being provided in parallel and spaced apart in a plane direction in which the substrate is located; the third sealing layer is partially located on a side of the blocking portion away from the substrate, or the gate electrode driving circuit further includes a scanning driving circuit located between the light emission control circuit and the first region; the blocking portion is located on a side of the scan drive circuit that is away from the first region, or the blocking portion is located on a side of the scan drive circuit that is away from the substrate, an orthogonal projection of the blocking portion on the substrate is located within an orthogonal projection of the light-emitting control circuit on the substrate, or the orthogonal projection of the blocking portion on the substrate and the orthogonal projection of the light-emitting control circuit on the substrate at least partially overlap, or the orthogonal projection of the blocking portion on the substrate and the orthogonal projection of the light-emitting control circuit on the substrate are provided adjacent to but misaligned with each other; or the display panel further includes a second insulating portion provided between the light-emission control circuit and at least a portion of the blocking portion; an orthogonal projection of the blocking portion on the substrate is located within an orthogonal projection of the second insulating portion on the substrate; the second insulating portion extends from the first region into the second region, and an orthogonal projection of the second insulating portion on the substrate covers an orthogonal projection of the light-emission control circuit on the substrate; the second insulating portion is located on the planarization layer; or the blocking portion includes a plurality of blocking pillars provided at intervals, and at least some of the blocking pillars are located on a side of the light-emission control circuit that is farther from the substrate; Each of the blocking pillars is located on a side of the light-emitting control circuit that is farther from the substrate, or some of the blocking pillars are located on a side of the light-emitting control circuit that is farther from the substrate, the number of blocking posts is greater than two; or further including a light emission control circuit located in the second region, wherein the blocking portion is at least partially located on a side of the light emission control circuit away from the substrate, or the blocking portion is adjacent to the light emission control circuit; the display panel further includes a second insulating portion located between the blocking portion and the light-emitting control circuit; or the light-emitting structure is located at least partially within the pixel opening; and the light-emitting structure is located at least partially within the pixel opening. the pixel definition layer is partially located on a side of the blocking portion away from the substrate, the pixel definition layer extends from the first region to the second region; an orthogonal projection of the light-emitting control circuit on the substrate is located within an orthogonal projection of the pixel definition layer on the substrate, and / or an orthogonal projection of the blocking portion on the substrate is located within an orthogonal projection of an outer edge of the pixel definition layer on the substrate; the pixel defining layer comprises an inorganic material; 5. The display panel according to claim 4.
6. A display panel having a first region and a second region surrounding the first region, the display panel including a substrate, an isolation structure, a light-emitting functional layer, a gate electrode driving circuit, and a blocking portion, the isolation structure is disposed on one side of the substrate and surrounds the substrate to form a plurality of opening structures; the light-emitting functional layer is provided on one side of the substrate and is located within the first region, and the light-emitting functional layer includes a plurality of light-emitting structures respectively provided within the plurality of opening structures; the gate electrode driving circuit is located in the second region, the blocking portion is provided in the second region, and an orthogonal projection of at least a part of the blocking portion on the substrate overlaps with an orthogonal projection of the gate electrode driving circuit on the substrate; the display panel further includes a second sealing layer provided on a side of the light-emitting functional layer away from the substrate, the second sealing layer including an organic material and partially located within the opening structure; the display panel further includes a first sealing layer provided between the second sealing layer and the light-emitting function layer, and a third sealing layer located on a side of the second sealing layer away from the substrate, the first sealing layer and the third sealing layer including an inorganic material; the first sealing layer includes a plurality of first sealing portions each provided within the opening structure, the first sealing portions and the blocking portion being provided in parallel and spaced apart in a plane direction in which the substrate is located; the third sealing layer is partially located on a side of the blocking portion away from the substrate; A display panel characterized by:
7. The gate electrode drive circuit includes a light emission control circuit, and an orthogonal projection of at least a part of the blocking portion on the substrate and an orthogonal projection of the light emission control circuit on the substrate overlap; the gate electrode driving circuit further includes a scanning driving circuit located between the light emission control circuit and the first region; the blocking portion is located on a side of the scan drive circuit that is away from the first region, the display panel further includes a third insulating portion provided between the light-emission control circuit and at least a portion of the blocking portion; an orthogonal projection of the blocking portion on the substrate is located within an orthogonal projection of the third insulating portion on the substrate; an orthogonal projection of the blocking portion on the substrate is within an orthogonal projection of a light-emitting control circuit on the substrate; the third insulating portion extends from the first region into the second region, and an orthogonal projection of the third insulating portion on the substrate covers an orthogonal projection of the light-emission control circuit on the substrate; the third insulating portion is located on the planarization layer; or a first signal line located in the second region and a first electrode located on a side of the light emitting structure away from the substrate, the first signal line being electrically connected to the first electrode via the isolation structure; the first signal line is located on one side of the isolation structure along a first direction, the first direction being parallel to a plane on which the substrate is located; an orthogonal projection of the blocking portion on the substrate and an orthogonal projection of the first signal line on the substrate are provided so as to be misaligned with each other; or the isolation structure includes a first isolation portion and a second isolation portion sequentially stacked in a direction away from the substrate, wherein 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 isolation portion includes a conductive material, and the first electrode is electrically connected to the first isolation portion; At least a part of the first signal lines is connected to the first isolation portion, the isolation structure further includes a third isolation portion located on one side of the substrate of the first isolation portion, the third isolation portion including a conductive material and electrically connected to the first isolation portion; the first electrode is connected to the third isolation portion in an overlapping manner; 7. The display panel according to claim 6, wherein the first and second electrodes are arranged parallel to each other.
8. A display device comprising the display panel according to claim 1 .
Citation Information
Patent Citations
Display device
CN110098223A
Reactor housing vessel
JP1979001784A
Image forming apparatus and image forming method
JP2005096197A
El display panel and display device using the same, and its drive method
JP2006285268A
Organic el display device, and manufacturing method therefor
JP2008135325A