A display panel, a display device, and a method for designing a display panel.

Abstract

This application provides a display panel, a display device, and a method for designing a display panel. The display panel includes: a display area and a non-display area at least partially surrounding the display area. Sub-pixels are located in the display area, and a grid structure is located in the display area. The sub-pixels include light-emitting elements and pixel circuits. The grid structure includes a first grid structure surrounding the light-emitting elements. Signal lines are located in the display area and connecting leads are located in the non-display area. The signal lines are connected to the pixel circuits, and the signal lines include first signal lines, which are connected to the connecting leads through the first grid structure. That is, this application makes the reflectivity of the area more uniform by setting the first grid structure. Connecting the first signal lines to the connecting leads through the traces formed by the first grid structure achieves trace connection within the display area, reducing the area of ​​the non-display area. While alleviating the problem of inconsistent reflectivity between different areas of the display panel, the display area of ​​the display area is increased.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel, a display device, and a method for designing a display panel. Background Technology

[0002] With the development of display technology, display devices, including display panels, are being used more and more widely, and are commonly found in various products with display functions, such as smartphones, tablets, digital cameras, aircraft instruments, and televisions.

[0003] To increase the screen-to-body ratio of a display panel, the traces within the panel are placed as close as possible to the display area to maximize the display size. However, the presence of traces causes differences in reflectivity between areas with and without traces, thus affecting the display panel's quality. Summary of the Invention

[0004] In view of this, a summary section is provided to briefly introduce the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] The purpose of this application is to provide a display panel, a display device, and a method for designing a display panel, which can increase the display area of ​​the display area while saving manufacturing costs and time costs.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] In a first aspect, embodiments of this application provide a display panel, including:

[0008] A display area and a non-display area that at least partially surrounds the display area;

[0009] The sub-pixels located in the display area and the grid structure located in the display area, wherein the sub-pixels include light-emitting elements and pixel circuits, and the grid structure includes a first grid structure, wherein the first grid structure is arranged around the light-emitting elements;

[0010] The signal line is located in the display area and the connection lead is located in the non-display area. The signal line is connected to the pixel circuit. The signal line includes a first signal line, which is connected to the connection lead through the first mesh structure.

[0011] Secondly, embodiments of this application provide a display device, including the display panel described above.

[0012] Thirdly, embodiments of this application provide a method for designing a display panel, applied to the display panel as described above, wherein the first mesh structure is designed through the following steps:

[0013] Draw a pattern of the first disconnected structure, which includes at least four sides;

[0014] Each of the four sides includes at least one notch, with the notches on opposite sides arranged along a first direction and the notches on the other two sides arranged along a second direction.

[0015] The pattern of the first connecting unit is filled at least part of the gap to form the pattern of the first grid structure;

[0016] The first direction intersects with the second direction.

[0017] Compared with the prior art, the embodiments of this application have the following beneficial effects:

[0018] This application provides a display panel, a display device, and a method for designing a display panel. The display panel includes: a display area and a non-display area at least partially surrounding the display area. Sub-pixels are located in the display area, and a grid structure is located in the display area. The sub-pixels include light-emitting elements and pixel circuits. The grid structure includes a first grid structure surrounding the light-emitting elements. Signal lines are located in the display area, and connecting leads are located in the non-display area. The signal lines are connected to the pixel circuits, and the signal lines include first signal lines, which are connected to the connecting leads through the first grid structure. In other words, by setting a first grid structure surrounding the light-emitting elements, this application makes the reflectivity of the area with the first grid structure more uniform, alleviating the problem of inconsistent reflectivity between different areas of the display panel, especially in the dark state of the display panel. Connecting the first signal lines to the connecting leads through the traces formed by the first grid structure realizes the trace connection within the display area, reducing the area of ​​the non-display area. While alleviating the problem of inconsistent reflectivity between different areas of the display panel, the display area of ​​the display area is increased. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0021] Figure 1 A top view of a display panel provided in an embodiment of this application is shown;

[0022] Figure 2 The embodiments provided in this application are shown. Figure 1 Enlarged schematic diagram of the local first grid structure in region C;

[0023] Figure 3 The embodiments provided in this application are shown. Figure 1 Enlarged schematic diagram of the local first grid structure in region D;

[0024] Figure 4 The embodiments provided in this application are shown. Figure 1 Enlarged schematic diagram of the local first grid structure in region A;

[0025] Figure 5 This illustration shows a schematic diagram of a first sub-mesh structure and a third sub-mesh structure with shared edges provided in an embodiment of this application;

[0026] Figure 6 A schematic diagram of a circular mesh structure provided in an embodiment of this application is shown;

[0027] Figure 7 The embodiments provided in this application are shown. Figure 1 Enlarged schematic diagram of a local structure in region E;

[0028] Figure 8 This illustration shows a partial cross-sectional view of a display panel according to an embodiment of this application;

[0029] Figure 9 A partial cross-sectional view of another display panel provided in an embodiment of this application is shown;

[0030] Figure 10 A partial cross-sectional view of another display panel provided in an embodiment of this application is shown;

[0031] Figure 11 An embodiment of this application is shown. Figure 12 Enlarged schematic diagram of the local second grid structure in region B;

[0032] Figure 12 A top view of yet another display panel provided in an embodiment of this application is shown;

[0033] Figure 13 A top view of another display panel provided in an embodiment of this application is shown;

[0034] Figure 14 This illustration shows a schematic diagram of the connection structure of a pixel circuit according to an embodiment of this application;

[0035] Figure 15 This paper shows a schematic diagram of the planar structure of a display device according to an embodiment of the present application;

[0036] Figure 16 A flowchart illustrating a method for designing a display panel according to an embodiment of this application is shown;

[0037] Figure 17 A schematic diagram of a first disconnection structure provided in an embodiment of this application is shown;

[0038] Figure 18 A schematic diagram of yet another first disconnection structure provided in an embodiment of this application is shown;

[0039] Figure 19 This illustration shows a schematic diagram of a first connecting subunit filling a first sub-disconnection structure according to an embodiment of this application;

[0040] Figure 20 This illustration shows a schematic diagram of a second connecting subunit filling a second sub-disconnection structure according to an embodiment of this application;

[0041] Figure 21 This illustration shows a schematic diagram of a third connecting subunit filling a third sub-disconnection structure according to an embodiment of this application. Detailed Implementation

[0042] It should be noted that the display panel, display device, and method for designing a display panel provided by this invention can be applied to the field of display technology. The above are merely examples and do not limit the application areas of the display panel, display device, and method for designing a display panel provided by this invention.

[0043] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0044] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0045] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0046] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0047] As described in the background section, the applicant has found through research that with the development of display technology, display devices, including display panels, are becoming increasingly widely used in various products with display functions, such as smartphones, tablets, digital cameras, aircraft instruments, and televisions.

[0048] To increase the screen-to-body ratio of a display panel, the traces within the panel are placed as close as possible to the display area to maximize the display size. However, the presence of traces causes differences in reflectivity between areas with and without traces, thus affecting the display panel's quality.

[0049] Based on the above technical problems, this application provides a display panel, a display device, and a method for designing a display panel. The display panel includes: a display area and a non-display area at least partially surrounding the display area. Sub-pixels are located in the display area, and a grid structure is located in the display area. The sub-pixels include light-emitting elements and pixel circuits. The grid structure includes a first grid structure surrounding the light-emitting elements. Signal lines are located in the display area, and connecting leads are located in the non-display area. The signal lines are connected to the pixel circuits, and the signal lines include first signal lines, which are connected to the connecting leads through the first grid structure. In other words, by setting a first grid structure surrounding the light-emitting elements, this application makes the reflectivity of the area with the first grid structure more uniform, alleviating the problem of inconsistent reflectivity between different areas of the display panel, especially effectively alleviating the problem when the display panel is dark. Connecting the first signal lines to the connecting leads through the traces formed by the first grid structure realizes the trace connection within the display area, reducing the area of ​​the non-display area. While alleviating the problem of inconsistent reflectivity between different areas of the display panel, the display area of ​​the display area is increased.

[0050] To better understand the technical solution and effects of this application, the specific embodiments will be described in detail below with reference to the accompanying drawings.

[0051] See Figure 1 As shown, Figure 1 This is a top view of a display panel provided in an embodiment of this application. The display panel provided in an embodiment of this application includes:

[0052] Display area 1 and non-display area 2 that at least partially surrounds display area 1;

[0053] The sub-pixel (not shown in the figure) and the grid structure (not shown in the figure) located in the display area 1 are included. The sub-pixel includes a light-emitting element (not shown in the figure) and a pixel circuit (not shown in the figure). The grid structure includes a first grid structure (not shown in the figure) which is arranged around the light-emitting element.

[0054] The signal line 3 is located in the display area 1 and the connecting lead 9 is located in the non-display area 2. The signal line 3 is connected to the pixel circuit. The signal line 3 includes a first signal line 31. The first signal line 31 is connected to the connecting lead 9 through a first grid structure. That is, the first grid structure is the grid structure of areas A, C and D in the figure.

[0055] In this embodiment, by setting a first mesh structure around the light-emitting element, the reflectivity of the area with the first mesh structure is made more uniform, alleviating the problem of inconsistent reflectivity between different areas of the display panel, especially when the display panel is dark. Connecting the first signal line 31 to the connecting lead through the trace formed by the first mesh structure achieves trace connection within the display area 1, reducing the area of ​​the non-display area 2. While alleviating the problem of inconsistent reflectivity between different areas of the display panel, the display area of ​​the display area 1 is increased.

[0056] Optional, see Figure 1 As shown, the signal line 3 provided in this embodiment may further include a second signal line 32, which may be directly connected to the connecting lead 9.

[0057] Optionally, in embodiments of this application, the direction extending along signal line 3 can be taken as the first direction, and the direction intersecting the first direction can be taken as the second direction. For example, the direction can be... Figure 1 The Y-direction is taken as the first direction, Figure 1 The X-direction is used as the second direction.

[0058] Optionally, the first signal line 31 can be located on one side or both sides of the second signal line 32 along the second direction. (See also...) Figure 1The display panel shown has a second signal line 32 located in the central display area of ​​the display panel, and a first signal line 31 located on one or both sides of the second signal line 32 along the second direction.

[0059] In one possible implementation, see Figure 1 As shown, areas A, C, and D on the display panel can be configured with a grid structure, which can reduce the difference in reflection between different areas.

[0060] In one possible implementation, the mesh structure 200 may include a first mesh structure, see [link to relevant documentation]. Figure 2 , Figure 3 and Figure 4 As shown, Figure 2 Provided for the embodiments of this application Figure 1 A magnified view of the local first grid structure in region C. Figure 3 Provided for the embodiments of this application Figure 1 A magnified view of the local first grid structure in region D. Figure 4 Provided for the embodiments of this application Figure 1 A magnified schematic diagram of the local first grid structure in region A.

[0061] Specifically, the first mesh structure provided in this application embodiment may include a first sub-mesh structure 81, a second sub-mesh structure 82, and a third sub-mesh structure 83. The first sub-mesh structure 81, the second sub-mesh structure 82, and the third sub-mesh structure 83 are all arranged around the light-emitting element 7.

[0062] It should be noted that the size, shape, and arrangement of the light-emitting element 7 provided in the embodiments of this application are only illustrative and are not specifically limited here. The specific settings can be made by those skilled in the art according to the actual situation.

[0063] The first sub-mesh structure 81, the second sub-mesh structure 82, and the third sub-mesh structure 83 provided in this application embodiment include at least four sides. For the first sub-mesh structure 81, it may include two sides 811 and 812 opposite to each other along a first direction, and two sides 813 and 814 opposite to each other along a second direction; for the second sub-mesh structure 82, it may include two sides 821 and 822 opposite to each other along a first direction, and two sides 823 and 824 opposite to each other along a second direction; for the third sub-mesh structure 83, it may include two sides 831 and 832 opposite to each other along a first direction, and two sides 833 and 834 opposite to each other along a second direction.

[0064] The first subgrid structure 81 includes a first notch 10 on its opposite sides 811 and 812 along the first direction;

[0065] The second subgrid structure 82 includes a second notch 20 on its opposite sides 823 and 824 along the second direction;

[0066] The third subgrid structure 83 includes a third notch 30 on one side 831 of the two sides opposite each other along the first direction and on one side 833 of the two sides opposite each other along the second direction.

[0067] In this embodiment, different notches can form traces in different directions. The first sub-mesh structure 81 can form traces along the second direction, for example... Figure 1 The routing in region C; the second sub-mesh structure 82 can form routing along the first direction, for example... Figure 1 The routing in region D; the third subgrid structure 83 can form routing along the first direction and along the second direction, for example... Figure 1 The wiring in area A. The notches prevent continuity between adjacent wirings, ensuring that signal transmission within the display panel does not interfere with each other.

[0068] Specifically, the traces formed by the first sub-grid structure 81 can be connected to the connecting lead 9, and the traces formed by the second sub-grid structure 82 are connected to the first signal line 31. The traces formed by the third sub-grid structure 83 connect the traces formed by the first sub-grid structure 81 and the second sub-grid structure 82. Thus, the connection between the first signal line 31 and the connecting lead 9 is achieved through the first sub-grid structure 81, the second sub-grid structure 82, and the third sub-grid structure 83. Furthermore, the traces formed by the first grid structure are located within the display area 1, thereby achieving trace connection within the display area 1 and reducing the area of ​​the non-display area 2. This alleviates the problem of inconsistent reflectivity between different areas of the display panel while increasing the display area of ​​the display area 1.

[0069] Optionally, in this embodiment, multiple first mesh structures can be configured to share edges, i.e., there are common edges, thereby saving costs. For example, see... Figure 5 As shown, the first sub-mesh structure 81 and the third sub-mesh structure 83 can share the same edge, that is, one side 812 of the first sub-mesh structure 81 along the first direction and one side 831 of the third sub-mesh structure 83 along the first direction are the same edge.

[0070] In one possible implementation, when the first mesh structure is a ring-shaped structure, see, for example, [see...] Figure 6 As shown, when the third subgrid structure 83 is a ring-shaped structure, the square inscribed in the circle formed by the third subgrid structure 83 can divide the third subgrid structure 83 into four parts, which correspond to the four sides 831, 832, 833 and 834 of the third subgrid structure 83 respectively.

[0071] In other embodiments, the first mesh structure may also be of other shapes, which are not limited in this application.

[0072] In one possible implementation, the first signal line 31 can be connected to the first mesh structure 8 via the adapter hole 5, see [link to relevant documentation]. Figure 7 As shown, Figure 1 A magnified schematic diagram of the local structure of region E in the middle.

[0073] For details, see Figure 8 The diagram shown is a cross-sectional view of a display panel provided in an embodiment of this application. The display panel provided in this embodiment may further include:

[0074] A first insulating layer 11 is located on one side of the first mesh structure 8 in a direction perpendicular to the display panel;

[0075] The adapter hole 5 penetrates the first insulating layer 11 in a direction perpendicular to the display panel;

[0076] In the direction perpendicular to the display panel, the signal line 3 is located on the side of the first insulating layer 11 away from the first mesh structure 8;

[0077] The first mesh structure 8 is connected to the signal line 3 via the adapter hole 5.

[0078] In this embodiment, the signal line 3 and the first mesh structure 8 can be connected through the adapter hole 5, that is, the signal line 3 and the first mesh structure 8 are not on the same layer, thereby saving space in the direction parallel to the surface of the display panel, and arranging the wiring as much as possible in the display area 1, thereby increasing the area of ​​the display area 1 and reducing the area of ​​the non-display area 2.

[0079] Meanwhile, when the signal line 3 and the first mesh structure 8 are arranged in different layers, in order to avoid short circuits in the display panel, at least one insulating layer is provided between the signal line 3 and the first mesh structure 8, for example, a first insulating layer 11 is provided, and a connecting hole 5 can be provided through the first insulating layer 11 to realize the electrical connection between the signal line 3 and the first mesh structure 8.

[0080] In one possible implementation, see Figure 7 As shown in the embodiment of this application, a plurality of first mesh structures 8 surround to form a hollow structure 40;

[0081] The orthographic projection of the hollow structure 40 on the surface of the display panel does not overlap with the orthographic projection of the light-emitting element 7 on the surface of the display panel.

[0082] In this embodiment of the application, in order to avoid mutual interference between the light-emitting elements 7, a certain distance can be maintained between the first grid structures 8, that is, to form a hollow structure 40.

[0083] In one possible implementation, see Figure 7 As shown, the orthographic projection of the adapter hole 5 on the surface of the display panel provided in this embodiment is included within the orthographic projection of the hollow structure 40 on the surface of the display panel.

[0084] In this embodiment of the application, the adapter hole 5 can be set in the area corresponding to the hollow structure 40. Since there is no light-emitting element 7 in the area corresponding to the hollow structure 40, the contact short circuit between the signal line 3 and the light-emitting element 7 can be avoided when setting it.

[0085] In one possible implementation, see Figure 9 The diagram shown is a partial cross-sectional view of another display panel provided in this embodiment. The sub-pixel 300 in the display panel provided in this embodiment has a conductive structure 300a, and the mesh structure 200 can be disposed in the same layer as the conductive structure 300a in the sub-pixel 300, and made of the same material, both disposed on one side of the substrate 41. That is, the mesh structure 200 and the conductive structure 300a in the sub-pixel 300 are formed using the same patterning process. It should be noted that this patterning process includes: photoresist coating, exposure, development, etching, and photoresist stripping. This reduces the number of process steps, saves on photomasks, and reduces manufacturing costs.

[0086] In this configuration, since the grid structure 200 within the display area 1 and the conductive structure 300a in the sub-pixel 300 are located on the same layer, the grid structure 200 can be arranged within the display area 1 without the need for additional conductive patterns within the display panel. This effectively simplifies the manufacturing process of the display panel and reduces its manufacturing cost.

[0087] In one possible implementation, see Figure 9 As shown, the mesh structure 200 and the conductive structure 300a of the sub-pixel 300 provided in this embodiment of the application are insulated from each other.

[0088] Specifically, a second insulating layer 201 and a third insulating layer 202 can be provided between the grid structure 200 and the conductive structure 300a, thereby ensuring that the grid structure 200 and the conductive structure 300a of the sub-pixel 300 do not come into contact, thus forming an insulating structure and preventing short circuits between the grid structure 200 and the conductive structure 300a.

[0089] In one possible implementation, the conductive structure 300a may include the anode layer of the light-emitting element 7. That is, in this embodiment, the first mesh structure 8 may be disposed around the anode layer of the light-emitting element 7, and the first mesh structure 8 may be disposed in the same layer as the anode layer of the light-emitting element 7. The first mesh structure 8 can be arranged in the display area 1 without the need for additional conductive patterns within the display panel, effectively simplifying the manufacturing difficulty of the display panel and reducing its manufacturing cost.

[0090] Specifically, Figure 10 A cross-sectional structural diagram of another display panel provided in this application embodiment includes:

[0091] A substrate 41 is provided, and an encapsulation layer 42 is disposed on one side of the substrate 41. A transistor 50 and a light-emitting element 7 are disposed between the substrate 41 and the encapsulation layer 42, with the light-emitting element 7 located on the side of the transistor 50 away from the substrate 41. The transistor 50 may include an active layer 51, a gate 52, a first electrode 53, and a second electrode 54. Optionally, the first electrode 53 may be a source electrode, and the second electrode 54 may be a drain electrode. In other embodiments, the first electrode 53 may be a drain electrode, and the second electrode 54 may be a source electrode. The light-emitting element 7 may specifically include an anode layer 171, a light-emitting layer 151, and a cathode layer 13. The light-emitting layer 151 of the light-emitting element 7 corresponds to the opening region 111 of the pixel definition layer 11. A first sub-insulating layer 401, a second sub-insulating layer 402, and a first insulating layer 11 may be sequentially stacked between the substrate 41 and the light-emitting element 7.

[0092] exist Figure 10 In this configuration, the cathode layer 13 is located on the side of the anode layer 171 away from the substrate 41. Optionally, the cathode layers 13 of each light-emitting element 7 can be interconnected to transmit the same electrical signal.

[0093] When the conductive structure 300a is the anode layer 171 of the light-emitting element 7, the anode layer 171 can be patterned, meaning that the anode layer 171 and the grid structure 200 can be formed using the same patterning process. The anode layer 171 and the grid structure 200 are placed on the same layer, which reduces manufacturing costs. Furthermore, placing the anode layer 171 and the grid structure 200 on the same layer maintains a relatively consistent reflectivity, avoiding any impact on the display panel's display effect. A pixel definition layer 110 is provided between the anode layer 171 and the grid structure 200, ensuring insulation between them and preventing short circuits.

[0094] In some possible embodiments, the cathode layer 13 can be disposed on the side of the anode layer 171 close to the substrate. In this case, the cathode layer 171 can be configured as a patterned structure, and the mesh structure 200 can be disposed in the same layer as the cathode layer 13.

[0095] In one possible implementation, see Figure 11 As shown, this is an embodiment provided in this application. Figure 12 An enlarged schematic diagram of a partial second grid structure in region B. In addition to the first grid structure, the grid structure provided in this application embodiment may also include a second grid structure 80 located in other display areas, such as the second grid structure 80 of the region shown in region B.

[0096] Optionally, the second grid structure 80 may also be provided with a disconnection position. The disconnection can be set on any side of the second grid structure 80. This application embodiment does not make specific limitations here. The specific settings can be made by those skilled in the art according to the actual situation.

[0097] The second mesh structure 80 is not connected to signal line 3. The second mesh structure 80 can be connected to a fixed voltage signal. For example, the second mesh structure 80 can be connected to PVDD (high level cell driving voltage), PVEE (low level cell driving voltage), REF (reference voltage), etc.

[0098] Here, PVDD refers to Pixel VDD, where Pixel represents a pixel and VDD represents a positive voltage; PVDD thus represents a high-voltage signal that provides a positive voltage to a pixel. PVEE refers to Pixel VEE, where Pixel represents a pixel and VEE represents a negative voltage; PVEE thus represents a low-voltage signal that provides a negative voltage to a pixel. By connecting the second grid structure 80 to the fixed voltage signal, interference from the second grid structure 80 to other electrical signals can be avoided.

[0099] Furthermore, embodiments of this application may provide at least a portion of the second grid structure 80 in areas on the display panel where the first grid structure 8 is not provided, in order to reduce the difference in reflectivity between different areas on the display panel.

[0100] In one possible implementation, the second mesh structure provided in this application embodiment can be set in an area outside the first mesh structure, for example, see [link to relevant documentation]. Figure 12The diagram shows a top view of another display panel provided in this application embodiment. Second grid structures can be provided in areas B, F, G, H, and I within display area 1. That is, second grid structures can be provided in all areas where no first grid structure is provided, thereby achieving full coverage of display area 1 by the grid structure. This reduces reflection differences between areas and ultimately presents a similar distribution of areas within display area 1. Furthermore, the second grid structures are all connected to fixed signals, thus preventing floating and reducing signal interference.

[0101] In one possible implementation, the signal line 3 provided in this application embodiment is used to transmit data signals.

[0102] See Figure 13 The image shown is a top view of another display panel provided in an embodiment of this application. The signal line 3 can be connected to the driving circuit 500. The signal line 3 is also connected to the pixel circuit 300b in the sub-pixel 300 to transmit data signals between the driving circuit 500 and the pixel circuit 300b. For example, the driving circuit 500 can provide a driving signal to the pixel circuit 300b through the signal line 3.

[0103] See Figure 14 The diagram shown is a schematic diagram of the connection structure of a pixel circuit provided in an embodiment of this application. Figure 11 The pixel circuit shown is a 7T (transistor) 1C (capacitance) pixel circuit, which means a pixel circuit that includes 7 transistors and 1 capacitor.

[0104] The pixel circuit may include a first transistor T1 through a seventh transistor T7. The gate of the first transistor T1 is connected to the emit signal EM; the first terminal of the first transistor T1 is connected to PVDD; the second terminal of the first transistor T1 is connected to the first terminal of the second transistor T2 and the first terminal of the third transistor T3 through the N2 node.

[0105] The gate of the second transistor T2 is connected to signal S1, and its second terminal is connected to the Vdata data signal. The gate of the third transistor T3 is connected to capacitor C1, the second terminal of the fifth transistor T5, and the first terminal of the fourth transistor T4 through node N1. The second terminal of the third transistor T3 is connected to the second terminal of the fourth transistor T4 and the first terminal of the sixth transistor T6 through node N3. The other end of capacitor C1 is also connected to PVDD. The gate of the fourth transistor T4 is connected to signal S2.

[0106] The first terminal of the fifth transistor T5 is connected to the reference signal line, which transmits the reference voltage Vref. Therefore, the fifth transistor T5 can be used as the reset transistor for this pixel circuit. The gate of the fifth transistor T5 is connected to signal S3. The gate of the sixth transistor T6 is connected to the emitter signal EM, and the second terminal of the sixth transistor T6 is connected to PVEE. The gate of the seventh transistor T7 is connected to signal S4. The second terminal of the seventh transistor T7 is connected to the initialization voltage signal line Vini, and the first terminal of the seventh transistor T7 is connected to PVEE.

[0107] It should be noted that the transistor provided in the embodiments of this application can have a first terminal as the drain and a second terminal as the source; or it can have a first terminal as the source and a second terminal as the drain.

[0108] Optionally, the pixel circuit provided in this application embodiment may also include pixel circuits such as 2T1C, 7T2C, 8T1C or 8T2C. This application embodiment does not make specific limitations, and the specific settings can be made by those skilled in the art according to the actual situation.

[0109] In one possible implementation, see Figure 1 and Figure 12 As shown, in this embodiment, the other end of the connecting lead 9 is connected to the driver chip 6. The driver chip 6 then drives the driving signal through the connecting lead 9 to the signal line 3, and then to the pixel circuit of the sub-pixel. The pixel circuit transmits the signal to the anode layer of the light-emitting element, creating a voltage difference between the anode and cathode layers, thereby achieving light emission from the light-emitting layer. In other words, the driver chip 6 can be used to drive the sub-pixels of the display area 1 to achieve light emission display.

[0110] This application provides a display panel comprising: a display area and a non-display area at least partially surrounding the display area; sub-pixels located in the display area and a grid structure located in the display area; the sub-pixels including light-emitting elements and pixel circuits; and the grid structure including a first grid structure surrounding the light-emitting elements; signal lines located in the display area and connecting leads located in the non-display area; the signal lines connected to the pixel circuits; and the signal lines including a first signal line connected to the connecting leads via the first grid structure. In other words, by setting a first grid structure surrounding the light-emitting elements, this application makes the reflectivity of the area with the first grid structure more uniform, alleviating the problem of inconsistent reflectivity between different areas of the display panel, especially effectively alleviating the problem when the display panel is dark. Connecting the first signal line to the connecting leads via the traces formed by the first grid structure realizes the trace connection within the display area, reducing the area of ​​the non-display area. While alleviating the problem of inconsistent reflectivity between different areas of the display panel, it increases the display area of ​​the display area.

[0111] See Figure 15 The figure shows a schematic diagram of a display device according to an embodiment of this application. As can be seen from the figure, the display device 99 includes a display panel 1111, which is the display panel described in any of the above embodiments. The display device 99 provided in this application embodiment can be other display devices with display functions, such as mobile phones, tablets, computers, televisions, vehicle-mounted display devices, and instrument display devices; this application embodiment does not specifically limit the application. The display device 99 provided in this application embodiment has the beneficial effects of the display panel provided in this application embodiment. For details, please refer to the specific description of the display panel in the above embodiments; this application embodiment will not repeat the description here.

[0112] This application provides a display device including a display panel: a display area and a non-display area at least partially surrounding the display area. Sub-pixels are located in the display area, and a grid structure is also located in the display area. Each sub-pixel includes a light-emitting element and a pixel circuit. The grid structure includes a first grid structure surrounding the light-emitting element. Signal lines are located in the display area, and connecting leads are located in the non-display area. The signal lines are connected to the pixel circuit and include a first signal line, which is connected to the connecting leads via the first grid structure. In other words, by setting a first grid structure surrounding the light-emitting element, this application makes the reflectivity of the area with the first grid structure more uniform, alleviating the problem of inconsistent reflectivity between different areas of the display panel, especially effectively mitigating the issue when the display panel is dark. Connecting the first signal line to the connecting leads via the traces formed by the first grid structure achieves trace connection within the display area, reducing the area of ​​the non-display area. While alleviating the problem of inconsistent reflectivity between different areas of the display panel, the display area of ​​the display area is increased.

[0113] See Figure 16 The diagram shown is a flowchart of a method for designing a display panel according to an embodiment of this application. This method can be applied to the display panel described in the above embodiments and is specifically designed through the following steps:

[0114] S101: Draw a pattern of the first disconnected structure, which includes at least four sides.

[0115] In this embodiment of the application, in order to design the first mesh structure, see [reference needed]. Figure 17 The diagram shown is a schematic diagram of a first disconnection structure 88 provided in an embodiment of this application. The first disconnection structure 88 includes at least four sides 881, 882, 883 and 884.

[0116] In one possible implementation, when the first disconnect structure is a ring-shaped structure, see, for example, [see...] Figure 18As shown, when the first disconnection structure 88 is a circular structure, the square inscribed in the circle formed by the first disconnection structure 88 can divide the first disconnection structure 88 into four parts, which correspond to the four sides 881, 882, 883 and 884 of the first disconnection structure 88 respectively.

[0117] S102: Each of the four sides includes at least one notch, the notches on opposite sides are arranged along a first direction, and the notches on other opposite sides are arranged along a second direction; the first direction and the second direction intersect.

[0118] In the embodiments of this application, see Figure 17 The diagram shown is a schematic of a first disconnection structure provided in an embodiment of this application. Each of the four sides 881, 882, 883, and 884 of the first disconnection structure 88 includes at least one notch. Specifically, the notches 881 and 882 on opposite sides are arranged along a first direction, and the notches 883 and 884 on opposite sides are arranged along a second direction. The first direction and the second direction intersect.

[0119] S103: Fill at least part of the gap with the pattern of the first connecting unit to form the pattern of the first grid structure.

[0120] Please refer to Figure 1 and Figure 19-21 In this embodiment of the application, in order to form the first grid structure, it is necessary to fill the pattern of the first connecting unit at least part of the above-mentioned gaps to form the pattern of the first grid structure.

[0121] In one possible implementation, the embodiments of this application can draw a pattern of the first disconnected structure to cover the entire display area 1 on the display panel, so as to reduce the reflection difference between the various areas and finally present a similar distribution of the various areas within the display area 1.

[0122] In one possible implementation, the first disconnection structure may include a first sub-disconnection structure 88a, a second sub-disconnection structure 88b, and a third sub-disconnection structure 88c. The first connection unit may include a first connection sub-unit 1011, a second connection sub-unit 1012, and a third connection sub-unit 1013. The pattern forming the first grid structure may specifically include:

[0123] See Figure 1 and Figure 19 As shown, Figure 19This illustration shows a schematic diagram of a first connecting subunit 1011 filling a first sub-disconnection structure 88a according to an embodiment of this application. The first sub-disconnection structure 88a can be, for example, the disconnection structure in region C. The pattern of the first connecting subunit 1011 can be drawn to fill the gaps 883 and 884 on opposite sides of the first sub-disconnection structure 88a along the second direction, forming a pattern of a first sub-grid structure. Optionally, in this embodiment, the direction extending along the signal line 3 can be taken as the first direction, and the direction intersecting the first direction can be taken as the second direction. For example, the direction can be... Figure 19-21 The Y-direction is taken as the first direction, Figure 19-21 The X-direction is used as the second direction.

[0124] See Figure 1 and Figure 20 As shown, Figure 20 The illustration shows a schematic diagram of a second connecting sub-unit 1012 filling a second sub-disconnection structure 88b according to an embodiment of this application. The second sub-disconnection structure 88b can be, for example, the disconnection structure of the region shown in region D. The pattern of the second connecting sub-unit 1012 can be drawn to fill the gaps on both sides 881 and 882 of the second sub-disconnection structure 88b along the first direction to form a pattern of the second sub-grid structure.

[0125] See Figure 1 and Figure 21 As shown, Figure 21 This illustration shows a schematic diagram of a third connecting sub-unit 1013 filling a third sub-disconnection structure 88c according to an embodiment of this application. The third sub-disconnection structure 88c can be, for example, the disconnection structure in region A. The pattern of the third connecting sub-unit 1013 can be drawn to fill the gaps 882 on one side of the opposite sides along the first direction and the gaps 884 on one side of the opposite sides along the second direction of the third sub-disconnection structure 88c, forming a pattern of a third sub-grid structure. Thus, by using different filling methods of the first connecting unit 101 in different areas of the display area 1, wiring connections in different directions are achieved, thereby realizing wiring connections within the display area 1 and reducing the area of ​​the non-display area 2. This alleviates the problem of inconsistent reflectivity between different areas of the display panel while increasing the display area of ​​the display area 1.

[0126] In one possible implementation, the first connecting subunit 1011, the second connecting subunit 1012, and the third connecting subunit 1013 provided in this application embodiment have different shapes and / or colors, which facilitates differentiation. By distinguishing connecting units in different directions through color and / or shape, connecting traces in different directions are formed, avoiding confusion and improving design efficiency.

[0127] This application provides a method for designing a display panel, comprising: applying a first grid structure to the display panel described in the above embodiment, and designing it through the following steps: drawing a pattern of a first disconnected structure, the first disconnected structure including at least four sides. Each of the four sides includes at least one notch, the notches on opposite sides are arranged along a first direction, and the notches on other opposite sides are arranged along a second direction. A pattern of first connecting units is filled at least some of the notches to form a pattern of the first grid structure; the first direction intersects the second direction. That is, this application, by using the pattern of the first connecting units to fill the first disconnected structure, makes the reflectivity of the area where the first disconnected structure is set more uniform, alleviating the problem of inconsistent reflectivity between different areas of the display panel, especially effectively alleviating the problem when the display panel is dark. It realizes the wiring connection within the display area, reducing the area of ​​the non-display area. While alleviating the problem of inconsistent reflectivity between different areas of the display panel, it increases the display area of ​​the display area.

[0128] Based on the above embodiments, this application provides a system for designing a display panel, comprising:

[0129] Memory, used to store computer programs;

[0130] A processor, used to execute the computer program to implement the steps of the method for designing a display panel as described above.

[0131] Based on the above embodiments, this application also provides a computer-readable medium storing a computer program, which, when processed and executed, implements the steps of the method for designing a display panel as described above.

[0132] It should be noted that the computer-readable medium described in this disclosure can be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this disclosure, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in connection with an instruction execution system, apparatus, or device. In this disclosure, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wires, optical fibers, RF (radio frequency), etc., or any suitable combination thereof.

[0133] The aforementioned computer-readable medium may be included in the aforementioned system, or it may exist independently and not assembled into the system.

[0134] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts.

[0135] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on its differences from other embodiments. In particular, the method embodiments are basically similar to the display panel embodiments, so the description is relatively simple; relevant parts can be referred to the description of the method embodiments.

[0136] The above description is merely a preferred embodiment of this application. Although this application has disclosed preferred embodiments above, it is not intended to limit this application. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this application using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of this application. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solutions of this application shall still fall within the protection scope of the technical solutions of this application.

[0137] While several specific implementation details are included in the foregoing discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0138] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

Claims

1. A display panel, characterized in that, include: A display area and a non-display area that at least partially surrounds the display area; The sub-pixels located in the display area and the grid structure located in the display area, wherein the sub-pixels include light-emitting elements and pixel circuits, and the grid structure includes a first grid structure, wherein the first grid structure is arranged around the light-emitting elements; The signal line is located in the display area and the connection lead is located in the non-display area. The signal line is connected to the pixel circuit. The signal line includes a first signal line, which is connected to the connection lead through the first mesh structure. Also includes: A first insulating layer located on one side of the first mesh structure in a direction perpendicular to the display panel; A transition hole penetrates the first insulating layer in a direction perpendicular to the display panel; In a direction perpendicular to the display panel, the signal line is located on the side of the first insulating layer away from the first mesh structure; The first mesh structure is connected to the signal line via the adapter hole; Multiple first grid structures surround each other to form a hollow structure; The orthographic projection of the hollow structure on the surface of the display panel does not overlap with the orthographic projection of the light-emitting element on the surface of the display panel. The orthographic projection of the adapter hole on the surface of the display panel is included within the orthographic projection of the hollow structure on the surface of the display panel.

2. The display panel according to claim 1, characterized in that, The first mesh structure includes a first sub-mesh structure, a second sub-mesh structure, and a third sub-mesh structure; The direction extending along the signal line is defined as the first direction, and the direction intersecting the first direction is defined as the second direction. The first sub-mesh structure, the second sub-mesh structure, and the third sub-mesh structure each include at least four sides; The first sub-mesh structure includes a first notch on each of its opposite sides along the first direction; The second subgrid structure includes a second notch on each side along the second direction; The third subgrid structure includes a third notch on one side of the two sides opposite each other along the first direction and on one side of the two sides opposite each other along the second direction.

3. The display panel according to claim 1, characterized in that, The sub-pixel has a conductive structure, and the mesh structure is disposed on the same layer as the conductive structure.

4. The display panel according to claim 3, characterized in that, The mesh structure is insulated from the conductive structure.

5. The display panel according to claim 3, characterized in that, The conductive structure includes the anode layer of the light-emitting element.

6. The display panel according to claim 1, characterized in that, The mesh structure also includes a second mesh structure, which is not connected to the signal line; The second mesh structure is connected to a fixed voltage signal.

7. The display panel according to claim 6, characterized in that, The second grid structure is located in the area outside the first grid structure.

8. The display panel according to claim 1, characterized in that, The signal line is used to transmit data signals.

9. The display panel according to claim 1, characterized in that, The other end of the connecting lead is connected to the driver chip.

10. A display device, characterized in that, Includes the display panel as described in any one of claims 1-9.

11. A method for designing a display panel, characterized in that, Applied to the display panel as described in any one of claims 1-9, the first mesh structure is designed through the following steps: Draw a pattern of the first disconnected structure, which includes at least four sides; Each of the four sides includes at least one notch, with the notches on opposite sides arranged along a first direction and the notches on the other two sides arranged along a second direction. The pattern of the first connecting unit is filled at least part of the gap to form the pattern of the first grid structure; The first direction intersects with the second direction.

12. The method according to claim 11, characterized in that, The first disconnection structure includes a first sub-disconnection structure, a second sub-disconnection structure, and a third sub-disconnection structure; the first connection unit includes a first connection sub-unit, a second connection sub-unit, and a third connection sub-unit; the pattern forming the first grid structure includes: Draw the pattern of the first connecting sub-unit and fill the gaps on both sides of the first sub-disconnect structure along the second direction to form the pattern of the first sub-grid structure; Draw the pattern of the second connecting sub-unit and fill the gaps on both sides of the second sub-disconnect structure along the first direction to form the pattern of the second sub-grid structure; Draw the pattern of the third connecting sub-unit to fill the gap on one side of the opposite sides of the third sub-disconnect structure along the first direction and the gap on one side of the opposite sides along the second direction to form the pattern of the third sub-grid structure.

13. The method according to claim 12, characterized in that, The first connecting subunit and the second connecting subunit have different shapes and / or colors.

Images