Display panel and display device

Abstract

The present application provides a display panel and a display device, wherein the display panel includes: a substrate; sub-pixels, which are arranged in an array on the substrate, each sub-pixel including a pixel circuit and a light-emitting element, the pixel circuit is used to drive the light-emitting element, a plurality of first connection parts, each first connection part is respectively connected to a pixel electrode and a driving transistor, the first connection part is also used to connect a signal line, the first connection part extends along a first direction, adjacent first connection parts are arranged at intervals, and a first bending part is arranged in the middle of the first connection part. The present application arranges a first bending part in the middle of the first connection part, so that the length of each first connection part can be increased as much as possible within a unit area, thereby increasing the distribution area of ​​the first connection part, which is conducive to reducing the light transmittance of the display panel, avoiding light leakage and grating effect problems, and further improving the display uniformity of the display panel, which is conducive to improving the display effect.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a display panel and a display device. Background Art

[0002] As an emerging panel technology, AMOLED display technology is recognized by the industry as the display technology with the most development potential due to its display advantages such as low power consumption, low cost, wide color gamut, high resolution and high color saturation, as well as its bendability, easy transformation and portability.

[0003] In a display panel, a signal line is usually required to provide signals to sub-pixels. The signal line is connected to a driving switch through a connecting line. However, for a high-resolution AMOLED display device, when the same power supply voltage is used to power each pixel unit in its display area, the wiring method of the connecting line is not ideal, resulting in a large light-transmitting area on the display panel. The light-transmitting area forms a fixed grating effect, which will cause the problem of visual display unevenness (Mura) in the off and on screen states, affecting the display effect of the display panel. Summary of the invention

[0004] The present application provides a display panel and a display device to solve the problem of poor display effect of the display panel.

[0005] In one aspect, the present application provides a display panel, comprising:

[0006] substrate substrate;

[0007] Sub-pixels are arranged in an array on the substrate, each sub-pixel includes a pixel circuit and a light-emitting element, the pixel circuit is used to drive the light-emitting element, the pixel circuit includes a driving transistor, and the light-emitting element includes a pixel electrode;

[0008] A plurality of first connection portions, each of which is respectively connected to a pixel electrode and a driving transistor, the first connection portion is also used to connect a signal line, a plurality of the first connection portions extend along a first direction, adjacent first connection portions are arranged at intervals, and a first bending portion is arranged in the middle of the first connection portion.

[0009] In a possible implementation of the present application, the first connecting portion is a serpentine connecting portion.

[0010] In a possible implementation of the present application, the first bending portion is a bending portion having at least one of a fold line, a curve, and an arc.

[0011] In a possible implementation of the present application, the display panel further includes:

[0012] A plurality of second connection portions, each of which is connected to one of the pixel electrodes and one of the driving transistors, and adjacent second connection portions are spaced apart along the first direction to form a first accommodation space;

[0013] The second connecting portion and the first connecting portion are staggered along a second direction, the first direction and the second direction intersect, and the first bending portion is located in the first accommodating space.

[0014] In a possible implementation of the present application, a second bending portion is provided in the middle of the second connecting portion, adjacent first connecting portions are spaced apart along the first direction to form a second accommodating space, and the second bending portion is located in the second accommodating space.

[0015] In a possible implementation of the present application, the first connecting portion further includes two first bent ends, and the first bent ends form a first avoidance space;

[0016] The second connecting portion further includes two second bent ends, the second bent ends form a second avoidance space, the first bent end is at least partially located in the second avoidance space, and the second bent end is at least partially located in the first avoidance space.

[0017] In a possible implementation of the present application, the first connecting portion and the second connecting portion are made of a transparent conductive material.

[0018] In a possible implementation of the present application, the display panel further includes:

[0019] A plurality of third connection parts, wherein the first connection parts and the third connection parts are arranged in the same layer, each of the third connection parts is respectively connected to one of the pixel electrodes and one of the driving transistors, and the third connection parts are linear and extend along the first direction;

[0020] The third connection portion extends along the first direction, adjacent third connection portions are arranged at intervals along the first direction, and each third connection portion is arranged between two adjacent first connection portions.

[0021] In a possible implementation of the present application, the first connection portion includes a first via hole and a second via hole, the first connection portion is connected to the pixel electrode through the first via hole, the first connection portion is connected to the driving transistor through the second via hole, and the first via hole and the second via hole are adjacently arranged or spaced apart.

[0022] In a possible implementation of the present application, the display panel includes a first display area and a fan-out area, the fan-out area overlaps with the first display area, and the first connecting portion is located in the first display area.

[0023] In a possible implementation of the present application, the display panel further includes a second display area, the first display area and the second display area are adjacently arranged, and the display panel further includes:

[0024] a plurality of fourth connection portions, wherein the fourth connection portions are arranged in the second display area, and each of the fourth connection portions is respectively connected to one of the pixel electrodes and one of the driving transistors;

[0025] The fourth connection portion extends along the first direction, adjacent fourth connection portions are arranged at intervals along the first direction, and a third bending portion is arranged in the middle of the fourth connection portion.

[0026] On the other hand, the present application also provides a display panel, including the display panel.

[0027] A display panel and a display device provided in the present application are provided with a first connection portion for connecting an external signal wiring between a driving transistor and a pixel electrode, so that each of the first connection portions is respectively connected to a pixel electrode and a driving transistor, the first connection portion extends along a first direction, adjacent first connection portions are arranged at intervals, and a first bending portion is arranged in the middle of the first connection portion, so that the length of each first connection portion can be increased as much as possible within a unit area, thereby increasing the distribution area of ​​the first connection portion, which is beneficial to reducing the light transmittance of the display panel, avoiding the problem of grating effect between adjacent first connection portions due to the first connection portions being too sparsely distributed, and further improving the display uniformity of the display panel, which is beneficial to improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0029] Figure 1 A schematic diagram of the top structure of a display panel provided in an embodiment of the present application.

[0030] Figure 2 For this application Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0031] Figure 3 A schematic diagram of the cross-sectional structure of a display panel provided in an embodiment of the present application.

[0032] Figure 4 A schematic diagram of the top structure of a display panel provided in yet another embodiment of the present application.

[0033] Figure 5 For this application Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0034] Figure 6 A schematic diagram of the structure of various areas of a display panel provided in an embodiment of the present application.

[0035] Figure 7 A schematic diagram of the top structure of a display panel provided in yet another embodiment of the present application.

[0036] Figure 8 For this application Figure 7 Schematic diagram of the enlarged structure at point C in the middle. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0038] In addition, in the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly defined and specifically defined. In the present application, unless otherwise clearly defined and specified, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly defined and specifically defined.

[0039] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0040] The embodiments of the present application provide a display panel and a display device, which are respectively described in detail below.

[0041] Please refer to Figure 1-Figure 8An embodiment of the present application provides a display panel, wherein the display panel is provided with a plurality of sub-pixels (not shown in the figure), and at least one sub-pixel includes a pixel circuit (not shown in the figure) and a light-emitting element 30.

[0042] The pixel circuit is used to drive the connected light-emitting element 30. For example, the pixel circuit is configured to provide a driving current to drive the light-emitting element 30 to emit light. The pixel circuit may include a plurality of thin film transistors and at least one capacitor. For example, the pixel circuit may be a 3T1C (3 thin film transistors and 1 capacitor) structure, a 7T1C (7 thin film transistors and 1 capacitor) structure, or a 5T1C (5 thin film transistors and 1 capacitor) structure. The pixel circuit can receive corresponding scanning signals, light-emitting driving signals, data signals, etc. to drive the light-emitting element 30 to emit light. The specific principle of the pixel circuit driving the light-emitting element 30 to emit light is not repeated here.

[0043] In the embodiment of the present application, the pixel circuit includes a driving transistor 20, and the light-emitting element 30 includes a pixel electrode 31, wherein the pixel electrode 31 may be an anode of an OLED light-emitting device.

[0044] The substrate 10 may be a flexible substrate 10 or a rigid substrate 10. For example, when the substrate 10 is a flexible substrate 10, the substrate 10 may be made of polyimide (PI), polyethylene naphthalate (PEN), thermoplastic polyester (PET), etc.; when the substrate 10 is a rigid substrate 10, the substrate 10 may be made of a rigid material such as glass or quartz. Taking the substrate 10 as a PI substrate as an example, the substrate 10 may be a single-layer PI structure, or a double-layer PI structure, such as Figure 4 As shown, the base substrate 10 includes a first PI substrate 11, a first buffer layer 12, a second PI substrate 13 and a second buffer layer 14 which are sequentially arranged from top to bottom along the thickness direction thereof.

[0045] An array of multiple driving transistors 20 is arranged on the substrate 10, and multiple pixel electrodes 31 are arranged on the driving transistors 20. In this embodiment, the display panel is an OLED display panel as an example. Correspondingly, the light-emitting element 30 can be an organic light-emitting diode (OLED), and the light-emitting element 30 emits red light, green light, blue light, or white light, etc. under the drive of its corresponding pixel circuit. The color of the light emitted by the light-emitting element 30 can be determined according to needs. The pixel electrode 31 of the embodiment of the present application can be the anode of the light-emitting element 30. Specifically, the light-emitting element 30 can include: an anode, a cathode, and a light-emitting functional layer located between the anode and the cathode. The anode of the light-emitting element 30 can be electrically connected to the driving transistor 20 in the corresponding pixel circuit. It should be noted that in the display panel, in addition to the light-emitting functional layer, an encapsulation layer, a touch layer, a polarizing layer, and a cover plate and other film layers can also be arranged on the pixel electrode 31.

[0046] Each first connection portion 40 is connected to a pixel electrode 31 and a driving transistor 20, respectively. Specifically, the driving transistor 20 includes an active layer 21, a gate layer 22, and a source-drain electrode layer 23 in order from top to bottom along the thickness direction of the base substrate 10, wherein the active layer 21, the gate layer 22, and the source-drain electrode layer 23 are insulated from each other. The first connection portion 40 is connected between the source-drain electrode layer 23 and the pixel electrode 31. A bridge layer 24 may be further provided between the first connection portion 40 and the source-drain electrode layer 23, wherein the material of the bridge layer 24 may be the same as that of the source-drain electrode layer 23, and the bridge layer 24 may be used to connect the voltage signal wiring VDD, thereby increasing the number of connections between the driving transistor 20 and the signal wiring VDD, thereby enhancing the display driving capability.

[0047] The first connection portion 40 extends along the first direction Y, and the first connection portion 40 is arranged in an array corresponding to the sub-pixels on the display panel. Specifically, the first connection portion 40 can be arranged in multiple rows along the first direction Y, and arranged in multiple rows along the second direction X. Among them, the first connection portions 40 arranged in a row along the second direction X can be called the first connection portions 40 in the same row, and the first connection portions 40 arranged in a row along the first direction Y can be called the first connection portions 40 in the same column. The first connection portion 40 is used to connect the signal wiring. For example, the first connection portion 40 in the same column can be electrically connected to a voltage signal wiring VDD. Among them, the first direction Y can be a vertical direction parallel to the display plane of the display panel, and the second direction X can be a horizontal direction parallel to the display plane of the display panel.

[0048] A plurality of first connection portions 40 extending along the first direction Y are arranged at intervals along the second direction X. Adjacent first connection portions 40 are arranged at intervals, and a first bending portion 41 is arranged in the middle of the first connection portion 40 , wherein the first bending portion 41 is used to increase the length of the first bending portion 41 .

[0049] The display panel of the embodiment of the present application is provided with a first connection portion 40 for connecting an external signal wiring between the driving transistor 20 and the pixel electrode 31, so that each first connection portion 40 is connected to a pixel electrode 31 and a driving transistor 20 respectively, and the first connection portion 40 extends along the first direction Y, and adjacent first connection portions 40 are arranged at intervals, and a first bending portion 41 is arranged in the middle of the first connection portion 40, so that the length of each first connection portion 40 can be increased as much as possible within a unit area, thereby increasing the distribution area of ​​the first connection portion 40, which is beneficial to reducing the light transmittance of the display panel, avoiding light leakage, and avoiding the problem of grating effect between adjacent first connection portions 40 due to the sparse distribution of the first connection portions 40, thereby improving the display uniformity of the display panel and improving the display effect.

[0050] In some embodiments, the first connection portion 40 is a serpentine connection portion, specifically, it can be a connection portion formed by an S-shaped curve, that is, when the first connection portion 40 forms a routing, it can be a serpentine winding. By setting the first connection portion 40 as a serpentine connection portion, the length of the first connection portion 40 can be increased in the first direction Y, and the compactness of the structure of the first connection portion 40 can be increased, which is conducive to improving the distribution density of the first connection portion 40, and can better avoid problems such as light leakage and grating effect, which is conducive to further improving the display uniformity of the display panel.

[0051] In some embodiments, Figure 5 As shown, the first connection part 40 further includes two first bent ends 42, the first bent ends 42 form a first avoidance space 402, the second connection part 50 further includes two second bent ends 52, the second bent ends 52 form a second avoidance space 502, the first bent ends 42 are at least partially located in the second avoidance space 502, and the second bent ends 52 are at least partially located in the first avoidance space 402. By providing the first avoidance space 402 and the second avoidance space 502, it is helpful to improve the structural compactness between the first connection part 40 and the second connection part 50, thereby increasing the distribution density of the first connection part 40 and the second connection part 50, which can better avoid problems such as light leakage and grating effect, and further help to further improve the display uniformity of the display panel.

[0052] In some embodiments, Figure 4 and Figure 5As shown, the display panel further includes a plurality of second connection portions 50, which may also be arranged in an array, for example, may be arranged in multiple rows along the first direction Y, and may be arranged in multiple rows along the second direction X. Each second connection portion 50 is respectively connected to a pixel electrode 31 and a driving transistor 20, and adjacent second connection portions 50 are arranged at intervals along the first direction Y to form a first accommodating space 501, wherein the first bending portion 41 is located in the first accommodating space 501. The second connection portion 50 and the first connection portion 40 are staggered along the second direction X, specifically, the first connection portion 40 and the second connection portion 50 may be arranged in parallel. The first connection portion 40 and the second connection portion 50 have the same function, and the difference between the first connection portion 40 and the second connection portion 50 is only in the shape. Specifically, the bending directions of the first bending portion 41 and the second bending portion 51 are opposite. By providing a sufficiently large bending and winding space for the first bending portion 41 through the first accommodating space 501, the first bending portion 41 can form a longer bending length in the first accommodating space 501, so that the first bending portion 41 can be distributed as much as possible in the first accommodating space 501, thereby increasing the distribution area of ​​the second connecting portion 50, which is beneficial to reducing the light transmittance of the display panel, avoiding light leakage and avoiding the problem of grating effect between adjacent second connecting portions 50 due to the second connecting portions 50 being distributed too sparsely, thereby helping to improve the display uniformity of the display panel.

[0053] Among them, the first direction Y and the second direction X intersect, and the first direction Y and the second direction X can be set to be parallel to the same display plane of the display panel. Specifically, in this embodiment, the first direction Y and the second direction X can be perpendicular to each other, the first direction Y can be a vertical direction, and the second direction X can be a horizontal direction. It should be noted that parallel refers to a state where the angle formed by the two straight lines is greater than -10° and less than 10°, and therefore, also includes a state where the angle is greater than -5° and less than 5°. In addition, "vertical" refers to a state where the angle formed by the two straight lines is greater than 80° and less than 100°, and therefore, also includes a state where the angle is greater than 85° and less than 95°.

[0054] In some embodiments, a second bending portion 51 is provided in the middle of the second connection portion 50, wherein the bending directions of the first bending portion 41 and the second bending portion 51 are opposite, and adjacent first connection portions 40 are arranged at intervals along the first direction Y to form a second accommodating space 401, and the second bending portion 51 is located in the second accommodating space 401. In the embodiment of the present application, the second accommodating space 401 is used to provide a sufficiently large bending and winding space for the second bending portion 51, so that the second bending portion 51 can form a longer bending length in the second accommodating space 401, so that the second bending portion 51 can be distributed in the second accommodating space 401 as much as possible, thereby facilitating further improving the structural compactness between the second connection portion 50 and the second connection portion 50 on the basis of the first accommodating space 501 and the first bending portion 41, and can better avoid problems such as light leakage and grating effect, which is conducive to further improving the display uniformity of the display panel.

[0055] In some embodiments, the first bending portion 41 and the second bending portion 51 may be bending portions having at least one of the shapes of a fold line, a curve, and an arc. For example, the second bending portion 51 may be a bending portion consisting of only any one of the shapes of a fold line, a curve, and an arc, or a bending portion consisting of both a fold line and a curve, etc. For example, the second bending portion 51 may be a sawtooth shape consisting of a plurality of continuous fold lines, or a wavy line shape consisting of a plurality of continuous curves. This embodiment does not impose any specific restrictions on the shape of the second bending portion 51.

[0056] In some embodiments, the first connection part 40 and the second connection part 50 are made of transparent conductive materials. Specifically, the first connection part 40 and the second connection part 50 can be formed of any one or more of indium tin oxide (Indium Tin Oxide, ITO), indium zinc oxide (Indium Zinc Oxide, IZO), and indium gallium zinc oxide (Indium Gallium Zinc Oxide, IGZO). Since the grating effect of transparent conductive materials is small, the first connection part 40 and the second connection part 50 are also made of transparent conductive materials, so that the grating effect of the first connection part 40 and the second connection part 50 made of metal can be effectively reduced, which is conducive to further improving the display effect of the display panel.

[0057] In some embodiments, Figure 6 As shown, the display panel includes a first display area 101 and a fan-out area 103, and the fan-out area 103 overlaps with the first display area 101. Specifically, the fan-out area 103 partially overlaps with the first display area 101, that is, the first display area 101 includes the fan-out area 103. The first connection portion 40 is located in the first display area 101, that is, the first connection portion 40 is also located in the fan-out area 103.

[0058] Among them, the first display area 101 is the area where the image is actually displayed in the display panel. The fan-out area 103 refers to the area where multiple data lines of the display panel are gathered in a fan shape. One end of the fan-out area 103 is electrically connected to the multiple data lines of the display panel, and one end is electrically connected to the gate drive circuit, so that the gate drive circuit can realize line-by-line scanning drive. Generally, the fan-out area 103 is located in the non-display area of ​​the display panel, which is not conducive to the realization of a narrow frame or no frame of the display panel. When the fan-out area 103 coincides with the first display area 101 (Fanout in AA, FIAA), that is, along the thickness direction of the display panel, the fan-out area 103 is located below the first display area 101, and the sub-pixels used for display in the fan-out area 103 are compressed, that is, by reducing the size of the switching device and the distribution of the wiring line width, etc., a part of the space is used to connect the data lines and other wirings of the fan-out area 103, so that the fan-out area 103 can be reused as an area for displaying images. Exemplarily, the fan-out area 103 can be arranged at the same layer as the gate drive circuit, or at a different layer from the gate drive circuit, as long as the fan-out area 103 is located below the first display area 101, and there is no specific limitation. By arranging the fan-out area 103 to overlap with the first display area 101, the non-display area of ​​the display panel can be further reduced or eliminated, which is conducive to the realization of a narrow frame or no frame of the display panel; in addition, since the sub-pixels in the fan-out area 103 are partially routed due to the switching devices and the metal routing due to the size compression, especially the routing of the first connection part 40 is relatively sparse, resulting in uneven horizontal visual display in the off-screen and on-screen states, therefore, by setting the first connection part 40 in the fan-out area 103, it is also conducive to improving the uniformity of the fan-out area 103 when displaying.

[0059] The first display area 101 may have a variety of shapes. For example, the first display area 101 may be a rectangle, such as a rounded rectangle. The first display area 101 may also be a circle or an ellipse. Of course, the first display area 101 may also be a rectangle, a semicircle, a pentagon, or other shapes. This embodiment does not specifically limit this.

[0060] In some embodiments, the display panel further includes a second display area 102, and the first display area 101 and the second display area 102 are arranged adjacent to each other. Among them, the second display area 102 is the area in the display panel where the image is actually displayed. Relative to the first display area 101, the second display area 102 is a conventional display area, that is, the second display area 102 does not overlap with the fan-out area 103. Specifically, the first display area 101 can be located in the middle of the top of the display panel. The second display area 102 can be surrounded by the first display area 101. However, this embodiment is not limited to this. Exemplarily, the first display area 101 can be located at other positions such as the upper left corner or the upper right corner of the display panel, or the second display area 102 can be surrounded by at least one side of the first display area 101. Among them, the shape of the second display area 102 can be various. Exemplarily, the second display area 102 can be a rectangle, such as a rounded rectangle, and the second display area 102 can also be a circle or an ellipse. Of course, the second display area 102 can also be a rectangle, a semicircle, a pentagon, and other shapes. This embodiment does not specifically limit this.

[0061] In some embodiments, Figure 7 and Figure 8 As shown, the display panel further includes a plurality of third connection portions 60. The main difference between the first connection portion 40 and the third connection portion 60 is the difference in distribution shape.

[0062] The third connection portion 60 is located in at least one of the first display area 101, the fan-out area 103 and the second display area 102, wherein the first connection portion 40 and the third connection portion 60 are arranged in the same layer, each third connection portion 60 is respectively connected to a pixel electrode 31 and a driving transistor 20, and the third connection portion 60 is linear and extends along the first direction Y. Exemplarily, the third connection portion 60 can extend in the first direction Y along the second display area 102, the fan-out area 103 and the first display area 101 in sequence, or the third connection portion 60 can also extend only in the fan-out area 103 along the first direction Y. Adjacent third connection portions 60 are arranged at intervals along the second direction X, and each third connection portion 60 is arranged between two adjacent first connection portions 40. Since the first connection part 40 and the third connection part 60 are arranged on the same layer, and the first connection part 40 and the third connection part 60 are both connection parts that serve as electrical connections, therefore, providing the third connection part 60 on the basis of the first connection part 40 can improve the structural compactness between the first connection part 40 and the second connection part 50, which is beneficial to increase the metal area of ​​the film layer where the first connection part 40 and the third connection part 60 are located, and by increasing the distribution density, problems such as light leakage and grating effect can be further avoided.

[0063] Please continue to refer to Figure 8The display panel further includes a plurality of fourth connection portions 70. The fourth connection portions 70 are disposed in the second display area 102. The fourth connection portions 70 may also be arranged in an array, for example, they may be arranged in multiple rows along the first direction Y, and in multiple rows along the second direction X. Each fourth connection portion 70 is respectively connected to a pixel electrode 31 and a driving transistor 20. The fourth connection portions 70 extend along the first direction Y. Adjacent fourth connection portions 70 are arranged at intervals along the first direction Y. A third bending portion 71 is disposed in the middle of the fourth connection portion 70, and a fourth bending portion 72 is formed at the end of the fourth connection portion 70.

[0064] By setting the middle part of the fourth connecting part 70 as a bending part in the second display area 102, the length of each first connecting part 40 is increased as much as possible within the unit area, thereby increasing the distribution area of ​​the fourth connecting part 70, which is beneficial to reduce the light transmittance of the second display area 102 of the display panel, avoid light leakage and avoid the problem of grating effect between adjacent fourth connecting parts 70 due to the sparse distribution of the fourth connecting parts 70, thereby improving the display uniformity of the first display area 101 and the second display area 102 in the display panel, which is beneficial to further improve the overall display effect of the display panel.

[0065] In some embodiments, Figure 3 As shown, the display panel may further include a plurality of fifth connection portions 80. The plurality of fifth connection portions 80 may also be arranged in an array, for example, they may be arranged in a plurality of rows along the first direction Y, and in a plurality of rows along the second direction X. The fifth connection portion 80 is located in the first display area 101, and each fifth connection portion 80 is connected between a pixel electrode 31 and a first connection portion 40; or, each fifth connection portion 80 is connected between a pixel electrode 31 and a second connection portion 50. The fifth connection portion 80 may be used to connect the voltage signal wiring VDD, thereby increasing the number of connections between the driving transistor 20 and the signal wiring VDD, thereby enhancing the display driving capability.

[0066] In some embodiments, the first connection portion 40 includes a first via hole 403 and a second via hole 404. Figure 8As shown, the first connection part 40 is connected to the pixel electrode 31 through the first via hole 403, and the first connection part 40 is connected to the driving transistor 20 through the second via hole 404. The first via hole 403 and the second via hole 404 can be arranged adjacent to each other, or the first via hole 403 and the second via hole 404 can be arranged at intervals. Among them, the length of the distance between the first via hole 403 and the second via hole 404 on the base substrate 10 will also affect the length of the fifth connection part 80. Specifically, the longer the distance between the first via hole 403 and the second via hole 404 is, the longer the routing length of the fifth connection part 80 will be. The shorter the distance between the first via hole 403 and the second via hole 404 on the base substrate 10 is, the shorter the routing length of the fifth connection part 80 will be. Therefore, the actual length of the fifth connection part 80 is required to adjust the via hole position distance between the first via hole 403 and the second via hole 404, which is conducive to improving the flexibility of the first connection part 40 to achieve connection. Exemplarily, by arranging the distances between the first via hole 403 and the second via hole 404 on each row of the first connecting portion 40 to be the same, the distribution of the area of ​​the fifth connecting portion 80 can be arranged to have a regularity, thereby preventing the continuous reflection of light in the arrangement area of ​​the fifth connecting portion 80 due to the different areas of the fifth connecting portion 80, resulting in different brightness of sub-pixels above different fifth connecting portions 80, causing an obvious mutation in the display brightness at a certain location, that is, by controlling the distribution density of the fifth connecting portion 80, the display area where the fifth connecting portion 80 is located plays a role of transition of the display effect, thereby reducing the problem of uneven display caused by the arrangement of the fifth connecting portion 80.

[0067] Since the connection relationship between the third connection part 60 and the first connection part 40 is the same, the first via hole 403 and the second via hole 404 can also be provided on the third connection part 60 to have the same effect, which will not be described in detail.

[0068] It should be noted that the third connection part 60, the fourth connection part 70 and the fifth connection part 80 can also be made of transparent conductive materials. Specifically, the third connection part 60, the fourth connection part 70 and the fifth connection part 80 can be formed of any one or more of indium tin oxide (Indium Tin Oxide, ITO), indium zinc oxide (Indium Zinc Oxide, IZO), and indium gallium zinc oxide (Indium Gallium Zinc Oxide, IGZO). Among them, the materials of the first connection part 40, the second connection part 50, the third connection part 60, the fourth connection part 70 and the fifth connection part 80 can be the same or different, and no specific limitation is made here.

[0069] The present application also provides a display device, which includes the above-mentioned display panel. The display panel in the display device of the embodiment of the present application is provided with a first connection portion 40 for connecting an external signal wiring between the driving transistor 20 and the pixel electrode 31, so that each first connection portion 40 is respectively connected to a pixel electrode 31 and a driving transistor 20, the first connection portion 40 extends along the first direction Y, the adjacent first connection portions 40 are arranged at intervals, and the middle of the first connection portion 40 is provided with a first bending portion 41, so that the length of each first connection portion 40 can be increased as much as possible within a unit area, thereby increasing the distribution area of ​​the first connection portion 40, which is conducive to reducing the light transmittance of the display panel, avoiding light leakage and avoiding the problem of grating effect between adjacent first connection portions 40 due to the sparse distribution of the first connection portions 40, thereby improving the display uniformity of the display panel, which is conducive to improving the display effect.

[0070] Since the display device has the above-mentioned display panel, it has all the same beneficial effects, and this embodiment is not repeated here. The embodiment of the present application does not specifically limit the applicability of the display device, which can be any product or component with a display function, such as a television, a laptop, a tablet computer, a wearable display device (such as a smart bracelet, a smart watch, etc.), a mobile phone, a virtual reality device, an augmented reality device, a car display, an advertising light box, etc.

[0071] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0072] In specific implementation, the above units or structures can be implemented as independent entities, or can be arbitrarily combined to be implemented as the same or several entities. The specific implementation of the above units or structures can refer to the previous method embodiments, which will not be repeated here.

[0073] The above is a detailed introduction to a display panel and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the embodiments of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that: include: substrate substrate; Sub-pixels are arranged in an array on the substrate, each sub-pixel includes a pixel circuit and a light-emitting element, the pixel circuit is used to drive the light-emitting element, the pixel circuit includes a driving transistor, and the light-emitting element includes a pixel electrode; a plurality of first connection portions, each of which is connected to one of the pixel electrodes and one of the driving transistors, the first connection portion is also used to connect a signal line, the plurality of first connection portions extend along a first direction, adjacent first connection portions are arranged at intervals, and a first bending portion is arranged in the middle of the first connection portion; and A plurality of second connection portions, each of which is connected to one of the pixel electrodes and one of the driving transistors, and adjacent second connection portions are spaced apart along the first direction to form a first accommodation space; The second connecting portion and the first connecting portion are staggered along a second direction, the first direction and the second direction intersect, and the first bending portion is located in the first accommodating space.

2. The display panel according to claim 1, characterized in that: The first connecting portion is a serpentine connecting portion.

3. The display panel according to claim 2, characterized in that: The first bending portion is a bending portion having at least one of a fold line, a curve and an arc line.

4. The display panel according to claim 1, characterized in that: A second bending portion is provided in the middle of the second connecting portion, and adjacent first connecting portions are arranged at intervals along the first direction to form a second accommodating space, and the second bending portion is located in the second accommodating space; The first connecting portion and the second connecting portion are made of transparent conductive material.

5. The display panel according to claim 1, characterized in that: The first connecting portion further includes two first bent ends, and the first bent ends form a first avoidance space; The second connecting portion further includes two second bent ends, the second bent ends form a second avoidance space, the first bent end is at least partially located in the second avoidance space, and the second bent end is at least partially located in the first avoidance space.

6. The display panel according to claim 1, characterized in that: The display panel further includes: A plurality of third connection parts, wherein the first connection parts and the third connection parts are arranged in the same layer, each of the third connection parts is respectively connected to one of the pixel electrodes and one of the driving transistors, and the third connection parts are linear and extend along the first direction; The third connection portions extend along the first direction, adjacent third connection portions are arranged at intervals, and each third connection portion is arranged between two adjacent first connection portions.

7. The display panel according to claim 1, characterized in that: The first connection portion includes a first via hole and a second via hole, the first connection portion is connected to the pixel electrode through the first via hole, the first connection portion is connected to the driving transistor through the second via hole, and the first via hole and the second via hole are adjacently arranged or spaced apart.

8. The display panel according to any one of claims 1 to 7, characterized in that: The display panel includes a first display area and a fan-out area, the fan-out area overlaps with the first display area, and the first connecting portion is located in the first display area.

9. The display panel according to claim 8, characterized in that: The display panel further includes a second display area, the first display area and the second display area are adjacently arranged, and the display panel further includes: a plurality of fourth connection portions, wherein the fourth connection portions are arranged in the second display area, and each of the fourth connection portions is respectively connected to one of the pixel electrodes and one of the driving transistors; The fourth connection portion extends along the first direction, adjacent fourth connection portions are arranged at intervals along the first direction, and a third bending portion is arranged in the middle of the fourth connection portion.

10. A display device, characterized in that: Comprising a display panel as described in any one of claims 1 to 9.

Images