Display panel and display device

Abstract

This invention provides a display panel and a display device. The display panel includes a substrate, a pixel defining layer, an isolation structure, and a touch layer. The pixel defining layer is disposed on one side of the substrate and includes pixel defining portions and a plurality of pixel openings formed by the pixel defining portions. The isolation structure is disposed on the side of the pixel defining layer opposite to the substrate. The touch layer is disposed on the side of the isolation structure opposite to the substrate, and the touch layer includes a plurality of touch traces. The orthographic projection of the touch traces on the substrate is located within the orthographic projection range of the pixel defining portions on the substrate. In the same direction parallel to the plane of the substrate, at least one side of a portion of the pixel openings has a first spacing with an adjacent touch trace, and the other side of the pixel openings has a second spacing with an adjacent touch trace. The difference between the first spacing and the second spacing is 0-2 micrometers, thereby solving the problem of color misalignment in the display panel.

Description

Technical Field

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

[0002] Organic light-emitting diodes (OLEDs) are organic thin-film electroluminescent devices. They have attracted great attention and are widely used in electronic display products due to their advantages such as low power consumption, high brightness, wide viewing angle, high contrast, and the ability to realize flexible displays.

[0003] However, the inventors discovered that current display panels still have defects and their performance needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a display panel and display device to overcome the performance defects of existing display panels.

[0005] To achieve the above objectives, the present invention provides a display panel comprising a substrate, a pixel defining layer, an isolation structure, and a touch layer. The pixel defining layer is disposed on one side of the substrate and includes a pixel defining portion and the pixel defining portion enclosing a plurality of pixel openings. The isolation structure is disposed on the side of the pixel defining layer opposite to the substrate and enclosing a plurality of isolation openings, the isolation openings communicating with corresponding pixel openings. The touch layer is disposed on the side of the isolation structure opposite to the substrate and includes a plurality of touch traces, the orthographic projection of the touch traces on the substrate being within the orthographic projection range of the pixel defining portion on the substrate. In the same direction parallel to the plane of the substrate, at least one side of a portion of the pixel openings has a first spacing with an adjacent touch trace, and the other side of the pixel openings has a second spacing with an adjacent touch trace, the difference between the first spacing and the second spacing being 0-2 micrometers.

[0006] Further, the pixel defining portion includes a first sub-defining portion and a second sub-defining portion respectively located on opposite sides of at least a portion of the pixel opening, wherein the orthographic projection area of ​​the touch trace on the first sub-defining portion is smaller than the orthographic projection area of ​​the touch trace on the second sub-defining portion. Preferably, the first sub-defining portion and the second sub-defining portion extend along a first direction parallel to the plane of the substrate and are arranged along a second direction parallel to the plane of the substrate and perpendicular to the first direction. Preferably, in the second direction, the width of the first sub-defining portion is smaller than the width of the second sub-defining portion. Preferably, the first spacing and the second spacing are equal.

[0007] Further, the isolation structure includes a first sub-isolation portion and a second sub-isolation portion respectively located on opposite sides of at least a portion of the pixel opening, wherein the orthographic projection area of ​​the touch trace on the first sub-isolation portion is smaller than the orthographic projection area of ​​the touch trace on the second sub-isolation portion. Preferably, the first sub-isolation portion and the second sub-isolation portion extend along a first direction parallel to the plane of the substrate and are arranged along a second direction parallel to the plane of the substrate and perpendicular to the first direction. Preferably, in the second direction, the width of the first sub-isolation portion is smaller than the width of the second sub-isolation portion.

[0008] Furthermore, the number of touch traces projected onto the first sub-defining portion is less than the number of touch traces projected onto the second sub-defining portion. Preferably, there are multiple touch traces projected onto the same second sub-defining portion, and the linewidths of these multiple touch traces projected onto the same second sub-defining portion are the same. Preferably, the linewidth of the touch traces projected onto the first sub-defining portion is less than or equal to the linewidth of the touch traces projected onto the second sub-defining portion.

[0009] Furthermore, the number of touch traces orthographically projected onto the first sub-defining portion is equal to the number of touch traces orthographically projected onto the second sub-defining portion. The linewidth of the touch traces orthographically projected onto the first sub-defining portion is smaller than the linewidth of the touch traces orthographically projected onto the second sub-defining portion.

[0010] Further, the touch trace includes multiple parallel first traces and second traces, which extend along a first direction parallel to the plane of the substrate and are arranged along a second direction perpendicular to the first direction. At least one second trace is located between two adjacent first traces. Preferably, the orthographic projection of the first trace onto the pixel defining layer is at least partially located on the first sub-defining portion. Preferably, the orthographic projection of the second trace onto the pixel defining layer is at least partially located on the second sub-defining portion. Preferably, the linewidth of the first trace is less than or equal to the linewidth of the second trace.

[0011] Furthermore, there are at least two second traces between two adjacent first traces. Preferably, the orthographic projections of at least two second traces on the pixel defining layer are at least partially located on the second sub-defining portion. Preferably, the linewidth of the first trace is equal to the linewidth of the second trace.

[0012] Furthermore, the touch trace also includes multiple parallel and spaced third and fourth traces, which extend along the second direction and are arranged along the first direction. Preferably, the first trace intersects with the third and fourth traces to form a mesh structure. Preferably, both ends of the second trace are connected to adjacent third and fourth traces, respectively.

[0013] Further, the plurality of pixel openings includes a plurality of first openings and a plurality of second openings, the first openings and second openings being spaced apart along the second direction. Preferably, the first opening has a first side and a second side extending along the first direction on both sides of the second direction, the first side being provided with a first sub-limiting portion between itself and an adjacent second opening, and the second side being provided with a second sub-limiting portion between itself and an adjacent second opening. Preferably, the second opening has a third side and a fourth side extending along the first direction on both sides of the second direction, the third side being provided with a second sub-limiting portion between itself and an adjacent first opening, and the fourth side being provided with a first sub-limiting portion between itself and an adjacent first opening. Preferably, the plurality of pixel openings further includes a plurality of third openings, the third openings being arranged sequentially along the second direction. Preferably, the third opening has a first opening and a second opening on both sides of the first direction. Preferably, the orthographic projection of the second trace on the pixel limiting layer is located on both sides of the third opening. Preferably, the orthographic projection area of ​​the first opening and the second opening on the substrate is smaller than the orthographic projection area of ​​the third opening on the substrate. Preferably, the projected area of ​​the first opening on the substrate is smaller than the projected area of ​​the second opening on the substrate.

[0014] Furthermore, the display panel further includes a plurality of light-emitting devices, at least a portion of which is located within a corresponding pixel opening. Preferably, each light-emitting device includes a light-emitting layer and a second electrode. At least a portion of the light-emitting layer is located within the corresponding pixel opening. The second electrode is disposed on the side of the light-emitting layer opposite to the substrate and is electrically connected to the isolation structure.

[0015] Further, the light-emitting device includes a first electrode located between the pixel defining layer and the substrate, with at least a portion of the first electrode exposed in a corresponding pixel opening. Preferably, the first electrode includes at least one connection terminal located on the side of the first electrode facing away from the light-emitting layer and extending towards the substrate side. Preferably, in the second direction, the distance between at least a portion of the connection terminal and an adjacent second trace is less than the distance between the connection terminal and an adjacent second trace.

[0016] Further, the plurality of light-emitting devices include a first light-emitting device and a second light-emitting device, wherein at least a portion of the first light-emitting device is located within a corresponding pixel opening, and at least a portion of the second light-emitting device is located within a corresponding pixel opening. Preferably, in the first light-emitting device, the distance between the connection end and the adjacent second trace in the second direction is less than the distance between the connection end and the adjacent first trace in the second direction. Preferably, in the second light-emitting device, the distance between the connection end and the adjacent second trace in the second direction is less than the distance between the connection end and the adjacent first trace in the second direction. Preferably, the orthographic projections of the connection ends of adjacent first and second light-emitting devices on the substrate are located within the orthographic projection range of the same second sub-defining portion on the substrate.

[0017] Furthermore, the second sub-limiting portion is located between the first opening and the second opening, and the first sub-limiting portion is located on the side of the first opening and the second opening away from the second sub-limiting portion. Preferably, the second sub-limiting portion is located on both sides of the third opening in the first direction.

[0018] Furthermore, the plurality of light-emitting devices further includes a third light-emitting device, at least a portion of which is located within the corresponding pixel opening. Preferably, the wavelengths of light emitted by the first and second light-emitting devices are both greater than the wavelength of light emitted by the third light-emitting device. Preferably, the wavelength of light emitted by the first light-emitting device is greater than the wavelength of light emitted by the second light-emitting device.

[0019] Further, the isolation structure includes a first isolation portion and a second isolation portion. The first isolation portion is disposed on one side of the substrate. The second isolation portion is disposed on the side of the first isolation portion opposite to the substrate. The isolation opening extends through the first isolation portion and the second isolation portion, and at least a portion of the light-emitting device is disposed in the isolation opening and electrically connected to the isolation opening. Preferably, the orthographic projection of the first isolation portion on the substrate is within the orthographic projection range of the second isolation portion on the substrate. Preferably, the materials of the first isolation portion and the second isolation portion include metallic materials.

[0020] Furthermore, the display panel further includes an encapsulation film assembly, which is disposed on the side of the light-emitting device facing away from the substrate, and the touch layer is located on the side of the encapsulation film assembly facing away from the substrate. Preferably, the encapsulation film assembly includes a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer. The first encapsulation layer is disposed on the side of the light-emitting device facing away from the substrate and extends to the side of the isolation structure facing away from the substrate. The second encapsulation layer is disposed on the side of the first encapsulation layer facing away from the substrate. The third encapsulation layer is disposed on the side of the second encapsulation layer facing away from the substrate. Preferably, the material of the encapsulation film assembly includes at least one of inorganic and organic materials.

[0021] Furthermore, the present invention also includes a display device, the display device comprising a display panel as described above.

[0022] The advantages of the present invention are: the display panel and display device of the present invention can improve the display effect of the display panel by changing the touch wiring structure between some light-emitting devices to meet the distance requirements between different light-emitting devices and touch wiring. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a plan view of the display panel in an embodiment of the present invention;

[0025] Figure 2 for Figure 1 An enlarged view of the central display panel at point A;

[0026] Figure 3 for Figure 2 A cross-sectional view of the central display panel at the BB' line;

[0027] Figure 4 This is a plan view of the display panel in another embodiment of the present invention;

[0028] Figure 5 for Figure 4 An enlarged view of the central display panel at point A;

[0029] Figure 6 for Figure 5 A cross-sectional view of the display panel at line BB'.

[0030] The components in the diagram are shown below:

[0031] Display panel 1; Display area AA;

[0032] Non-display area (NA); Pixel unit (PG);

[0033] Substrate 10; Thin-film transistor 11;

[0034] Pixel confinement layer 20; Pixel opening 21;

[0035] First sub-limitation section 221; Second sub-limitation section 222;

[0036] First opening 21R; Second opening 21G;

[0037] Third opening 21B; First side 201;

[0038] Second side 202; Third side 203;

[0039] Fourth side 204 Light-emitting device 30;

[0040] First electrode 31; Connecting end 311

[0041] Light-emitting layer 32; Second electrode 33;

[0042] First light-emitting device 30R; Second light-emitting device 30G;

[0043] Third light-emitting device 30B; Isolation structure 40;

[0044] First sub-isolation section 401; Second sub-isolation section 402;

[0045] First Isolation Section 41; Second Isolation Section 42;

[0046] Isolation opening 43; Encapsulation membrane assembly 50;

[0047] First encapsulation layer 51; Second encapsulation layer 52;

[0048] Third encapsulation layer 53; Touch layer 60;

[0049] Touchscreen trace 61; First trace 611;

[0050] Second route 612; Third route 613;

[0051] Fourth route 614. Detailed Implementation

[0052] The following description, with reference to the accompanying drawings, illustrates preferred embodiments of the present invention, demonstrating its implementability. These embodiments provide a complete overview of the invention for those skilled in the art, making its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0053] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and the present invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of components is appropriately exaggerated in some places in the drawings.

[0054] Furthermore, the following descriptions of the embodiments of the invention are made with reference to the accompanying illustrations, illustrating specific embodiments in which the invention can be implemented. Directional terms used in this invention, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and "side," are merely directional references to the accompanying drawings. Therefore, the use of directional terms is for better and clearer explanation and understanding of the invention, and does not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] When a component is described as being "on" another component, the component may be placed directly on the other component; alternatively, there may be an intermediate component on which the component is placed, and the intermediate component is placed on the other component. When a component is described as being "installed to" or "connected to" another component, both can be understood as being directly "installed" or "connected" to, or as being indirectly "installed to" or "connected to" another component via an intermediate component.

[0056] In related display technologies, to achieve high resolution and color in OLED (Organic Light-Emitting Diode) and to better address issues such as low resolution of OLED electrode films and low device yield, isolation structures have been introduced. This involves fabricating isolation structures on the substrate before depositing organic thin films and metal electrodes, instead of using metal photomasks in device fabrication. These isolation structures separate different pixels, creating a pixel array. However, in actual production, the inventors discovered that the width between the pixel openings in the display panel and the isolation structures is often unequal, resulting in unequal distances between the pixel openings and surrounding touch traces. This can easily cause viewing angle distortion, affecting the display effect.

[0057] Based on the problems found in the aforementioned related display technologies, this embodiment of the invention proposes a display panel 1, such as... Figure 1 The display panel 1 of this invention has a display area AA and a non-display area NA connected to the display area AA. Multiple light-emitting devices 30 are provided in the display area AA, each of which can independently emit light to display an image in the display area AA. The non-display area NA is provided with a driving device and multiple signal lines. One end of each signal line is electrically connected to the driving device, and the other end extends into the display area AA and is electrically connected to the light-emitting device 30 located in the display area AA. The driving device can be a flexible printed circuit (FPC), a driver chip (IC), or other electronic components. The driving device can send display signals to the display area AA through the signal lines according to display requirements, and the display area AA can then light up the corresponding light-emitting device 30 according to the display signal, thereby controlling the displayed image.

[0058] like Figure 2 and Figure 3 As shown, the display panel 1 also includes a substrate 10, a pixel defining layer 20, an isolation structure 40, and a touch layer 60. The substrate 10 is used to drive the light-emitting devices 30; the pixel defining layer 20 is disposed on one side of the substrate 10 and defines the light-emitting area of ​​the light-emitting device 30; the isolation structure 40 is disposed on the side of the pixel defining layer 20 facing away from the substrate 10 and encloses multiple isolation openings 43, which block the vapor-deposited material and disconnect the vapor-deposited material in adjacent isolation openings 43, thereby isolating different light-emitting devices 30; the touch layer 60 is used to transmit touch signals to realize touch operation. (The composition and preparation of the isolation structure 40 mentioned below are specified in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, and PCT / CN2024 / 099072.) Further descriptions can be found in CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0059] The substrate 10 is an array substrate, comprising an array of thin-film transistors 11 and signal traces. Each light-emitting device 30 is electrically connected to at least one thin-film transistor 11 located in the display area AA. The driving device can be bonded to the substrate 10 in the non-display area NA using COF (Chip On Film) or FOP (Flexible Printed Circuit Board On Panel) technology, electrically connecting the driving device to one end of the signal trace. The signal trace extends from the non-display area NA to the display area AA, and its other end is electrically connected to the thin-film transistor 11 located in the display area AA. The driving device transmits display signals to the corresponding thin-film transistor 11 through the signal trace. The thin-film transistor 11 conducts the corresponding light-emitting device 30 according to the display signal, thereby causing the light-emitting device 30 at the corresponding position to emit light, thus forming an image. At the same time, the driving chip can also realize the change of the display image by sending different display signals.

[0060] A pixel defining layer 20 is disposed on the surface of the substrate 10. The pixel defining layer 20 includes a pixel defining portion 22 and a plurality of pixel openings 21 formed by the speed limiting portion. At least a portion of the light-emitting device 30 is disposed in the pixel openings 21. Specifically, the plurality of pixel openings 21 includes a plurality of first openings 21R, a plurality of second openings 21G, and a plurality of third openings 21B. The first openings 21R and the second openings 21G are arranged at intervals along a second direction Y parallel to the plane of the substrate 10. The third openings 21B are also arranged one by one along the second direction Y. A row of third openings 21B is provided between two adjacent rows of first openings 21R and second openings 21G. That is, the third openings 21B have first openings 21R and second openings 21G on both sides of a first direction X parallel to the plane of the substrate 10 and perpendicular to the second direction Y.

[0061] A light-emitting device 30 is disposed on one side of the substrate 10, and at least a portion of the light-emitting device 30 is located in the corresponding pixel opening 21. The light-emitting device 30 includes a first electrode 31, a light-emitting layer 32, and a second electrode 33. The first electrode 31 is disposed between the substrate 10 and the pixel defining layer 20, and at least a portion of the first electrode 31 is exposed in the corresponding pixel opening 20. The first electrode 31 has a connection end 311, which is electrically connected to the source or drain of the corresponding thin-film transistor 11 through a via in the substrate 10. The light-emitting layer 32 is located on the side of the first electrode 31 facing away from the substrate 10, covers the exposed surface of the first electrode 31 in the pixel opening 21, and extends from the surface of the first electrode 31 to the side of the pixel defining portion 22 facing away from the substrate 10. The second electrode 33 is stacked on the side of the light-emitting layer 32 facing away from the substrate 10, and extends from the light-emitting layer 32 facing away from the substrate 10 to the surface of the isolation structure 40 facing the isolation opening 43, thereby facilitating the electrical connection between the second electrode 33 and the isolation structure 40.

[0062] The display panel 1 has multiple pixel units PG arranged in an array. Each pixel unit PG has at least two pixel openings 21, which also have at least two light-emitting devices 30. In this embodiment of the invention, each pixel unit PG includes three pixel openings 21: a first opening 21R, a second opening 21G, and a third opening 21B. That is, each pixel unit PG also includes three light-emitting devices 30: a first light-emitting device 30R at least partially disposed in the first opening 21R, a second light-emitting device 30G at least partially disposed in the second opening 21G, and a third light-emitting device 30B at least partially disposed in the third opening 21B. Specifically, in the same pixel unit PG, the first opening 21R and the second opening 21G are arranged along the second direction Y, and the third opening 21B is located on the same side of the first opening 21R and the second opening 21G in the first direction X, thereby enabling light-emitting devices capable of emitting different colors to be evenly distributed in the display area AA. In this design, the wavelength of light emitted by the first light-emitting device 30R is greater than that of the second light-emitting device 30G, and the wavelength of light emitted by the second light-emitting device 30G is greater than that of the third light-emitting device 30B. For example, the first light-emitting device 30R can emit red light, the second light-emitting device 30G can emit green light, and the third light-emitting device 30B can emit blue light. By uniformly distributing these light-emitting devices 30 that can emit different colors of light, color image display can be achieved. Furthermore, since the light-emitting materials used in the different colored light-emitting devices are different, the luminous efficiency and lifespan of the different colored light-emitting devices 30 are also different. In order to balance the luminous efficiency and lifespan of the different colored light-emitting devices 30, pixel openings 21 of different sizes are provided. That is, the projected area of ​​the first opening 21R on the substrate 10 is smaller than that of the second opening 21G on the substrate 10, and the projected area of ​​the second opening 21G on the substrate 10 is smaller than that of the third opening 21B on the substrate 10, thereby ensuring that the luminous efficiency and lifespan of the different colored light-emitting devices 30 are similar.

[0063] An isolation structure 40 is disposed on the side of the pixel limiting layer 20 facing away from the substrate 10, and the orthographic projection of the isolation structure 40 on the substrate 10 is within the orthographic projection range of the pixel limiting portion 22 on the substrate 10. The isolation structure 40 includes a first isolation portion 41, a second isolation portion 42, and an isolation opening 43. The first isolation portion 41 is disposed on the side of the pixel limiting portion 22 facing away from the substrate 10, and the second isolation portion 42 is stacked on the side of the first isolation portion 41 facing away from the substrate 10. The isolation opening 43 penetrates the first isolation portion 41 and the second isolation portion 42 and communicates with the corresponding pixel opening 21, enabling a portion of the material in the light-emitting device 30 to be deposited in the pixel opening 21. The orthographic projection of the light-emitting layer 32 on the substrate 10 is outside the range of the orthographic projection of the first isolation portion 41 on the substrate 10. A second electrode 33 extends from the surface of the light-emitting layer 32 facing away from the substrate 10 to the sidewall of the first isolation portion 41 facing the isolation opening 43 and is electrically connected to the first isolation portion 41. The second electrode 33 can obtain a power signal through the first isolation portion 41.

[0064] Specifically, the orthographic projection of the first isolation portion 41 on the substrate 10 is within the orthographic projection range of the first isolation portion 42 on the substrate 10, so that the second isolation portion 42 can completely block the first isolation portion 41. This prevents the material of the light-emitting layer 32 from being deposited onto the first isolation portion 41 during the fabrication of the light-emitting layer 32. During the fabrication of the second electrode 33, the deposition angle of the material of the second electrode 33 can be adjusted to make the coverage area of ​​the second electrode 33 larger than the coverage area of ​​the light-emitting layer 32. This allows the second electrode 33 to extend from the surface of the light-emitting layer 32 away from the substrate 10 to the sidewall of the first isolation portion 41 facing the isolation opening 43, so that the second electrode 33 can overlap with the first isolation portion 41.

[0065] Furthermore, the first isolation portion 41 located between two adjacent pixel openings 21 has a trapezoidal cross-sectional shape in the stacking direction of the display panel 1, and the width of the first isolation portion 41 near the second isolation portion 42 is smaller than the width of the first isolation portion 41 near the substrate 10, thereby facilitating the climbing of the second electrode 33, reducing the difficulty of overlapping between the second electrode 33 and the first isolation portion 41, and improving the overlap yield between the second electrode 33 and the isolation structure 40.

[0066] The encapsulation film assembly 50 includes a first encapsulation layer 51, a second encapsulation layer 52, and a third encapsulation layer 53 stacked sequentially. The first encapsulation layer 51 includes multiple sub-encapsulation portions disposed on the side of the light-emitting device 30 facing away from the substrate 10, and each isolation opening 43 has at least one sub-encapsulation portion. Specifically, the sub-encapsulation portions extend from the surface of the second electrode 33 facing away from the substrate 10 to the surface of the isolation structure 40 facing away from the substrate 10. The second encapsulation layer 52 is disposed on the side of the first encapsulation layer 51 facing away from the substrate 10 and fills the gaps between the isolation openings 43 and the sub-encapsulation portions, improving the flatness of the panel surface. The third encapsulation layer 53 is disposed on the side of the second encapsulation layer 52 facing away from the substrate 10. The encapsulation film assembly 50 is used to encapsulate and protect the display device in the display panel 1. It can be prepared by a thin film encapsulation (TIF) process, and its material includes at least one of inorganic and organic materials. Specifically, the materials of the first encapsulation layer 51 and the third encapsulation layer 53 may include inorganic materials and may be prepared by chemical vapor deposition (CVD); the material of the second encapsulation layer 52 may include organic materials and may be prepared by coating process.

[0067] The touch layer 60 is disposed on the side of the encapsulation film assembly 50 facing away from the substrate 10. It includes multiple touch traces 61. The orthographic projection of the touch traces 61 on the substrate 10 is located within the orthographic projection range of the pixel limiting portion 22 and the isolation structure 40 on the substrate 10. That is, the orthographic projection of the touch traces 61 on the substrate 10 is outside the orthographic projection range of the pixel opening 21 on the substrate 10 and there is a gap between them, thereby preventing the touch traces 61 from affecting the light emission efficiency due to blocking the light emission path of the light-emitting device 30. The touch traces 61 include multiple longitudinal touch traces 61 extending along the second direction Y and transverse touch traces 61 extending along the first direction X. Multiple traces with different extension directions intersect and connect to form a mesh-like trace structure, and the mesh in the mesh-like trace structure corresponds to the pixel opening 21.

[0068] To balance the luminous efficiency and lifespan of different color light-emitting devices 30, pixel openings 21 of different sizes are provided, resulting in at least some pixel openings 21 having unequal spacing between their two sides and adjacent pixel openings 21. Specifically, in the second direction Y, the pixel defining portion 22 includes a first sub-defining portion 221 and a second sub-defining portion 222 located on both sides of the first opening 21R and the second opening 21G, respectively. The first sub-defining portion 221 and the second sub-defining portion 222 extend along the first direction X and are arranged along the second direction Y. The second sub-defining portion 222 is located between the first opening 21R and the second opening 21G, the first sub-defining portion 221 is located on the side of the first opening 21R and the second opening 21G away from the second sub-defining portion 222, and the second sub-defining portion 222 is located on both sides of the third opening 21B in the first direction X. Specifically, the first opening 21R has a first side 201 and a second side 202 extending along the first direction X on both sides in the second direction Y. A first sub-limiting portion 221 is provided between the first side 201 and the adjacent second opening 21G, and a second sub-limiting portion 222 is provided between the second side 202 and the adjacent second opening 21G. The second opening 21G has a third side 203 and a fourth side 204 extending along the first direction X on both sides in the second direction Y. A second sub-limiting portion 222 is provided between the third side 203 and the adjacent first opening 21R, and a first sub-limiting portion 221 is provided between the fourth side 204 and the adjacent first opening 21R. That is, a first sub-limiting portion 221 is provided between the first side 201 and the adjacent fourth side 204, and a second sub-limiting portion 222 is provided between the second side 202 and the adjacent third side 203. Furthermore, the adjacent first side 201 and fourth side 204 overlap with the same first sub-limiting portion 221 on the sidewalls of the first opening 21R and the second opening 21G, respectively, and the adjacent second side 202 and third side 203 overlap with the same second sub-limiting portion 222 on the sidewalls of the first opening 21R and the second opening 21G, respectively. In the second direction Y, the width c of the first sub-limiting portion 221 is smaller than the width d of the second sub-limiting portion 222, meaning that the distances between the two sides of the first opening 21R and the adjacent second opening 21G in the second direction Y are not equal, and the distances between the two sides of the second opening 21G and the adjacent first opening 21R in the second direction Y are also not equal. Therefore, in the second direction Y, setting a single touch trace 61 between the first opening 21R and the second opening 21G will cause the distance between the first opening 21R and the second opening 21G and the adjacent touch trace 61 to be unequal, which will easily cause viewing angle deviation and affect the display effect of the display panel 1.

[0069] Therefore, in this embodiment of the invention, there are multiple orthographic projections of touch traces 61 between some adjacent pixel openings 21. Specifically, there are multiple touch traces 61 with orthographic projections on the same second sub-limiting portion 222, and the number of touch traces 61 with orthographic projections on the first sub-limiting portion 221 is less than the number of touch traces 61 with orthographic projections on the second sub-limiting portion 222. That is, at least one touch trace 61 is provided on one side of the first opening 21R and the second opening 21G in the second direction Y, and at least two touch traces 61 are provided on the other side, thereby causing the orthographic projection area of ​​the touch traces 61 on the first sub-limiting portion 221 to be smaller than the orthographic projection area of ​​the touch traces 61 on the second sub-limiting portion 222. In this configuration, in the same direction parallel to the plane of the substrate 10, at least one side of the pixel opening 21 has a first spacing 'a' between it and an adjacent touch trace 61, and the other side of the pixel opening 21 has a second spacing 'b' between it and an adjacent touch trace 61. The first spacing 'a' and the second spacing 'b' are similar, meaning the difference between them is 0-2 micrometers. Preferably, the difference between them is 0, meaning the first spacing 'a' equals the second spacing 'b'. For example, the distances between the two sides of the pixel opening 21 in the first direction X and the adjacent vertical touch traces 61 are equal, and the distances between the two sides of the pixel opening 21 in the second direction Y and the adjacent horizontal touch traces 61 are equal. This ensures that the distances between the light-emitting device 30 located in at least a portion of the pixel opening 21 and the surrounding adjacent touch traces 61 are equal both horizontally and vertically, thereby improving the viewing angle distortion problem of the display panel 1.

[0070] Furthermore, the isolation structure includes a first sub-isolation portion 401 and a second sub-isolation portion 402 located on opposite sides of at least a portion of the pixel opening 21. The first sub-isolation portion 401 and the second sub-isolation portion 402 extend along a first direction X and are arranged along a second direction Y. The orthographic projection of the first sub-isolation portion 401 onto the substrate 10 lies within the orthographic projection range of the first sub-limiting portion 221 onto the substrate 10, and the orthographic projection of the second sub-isolation portion 402 onto the substrate 10 lies within the orthographic projection range of the second sub-limiting portion 222 onto the substrate 10. In the second direction Y, the width of the first sub-isolation portion 401 is smaller than the width of the second sub-isolation portion 402. Furthermore, the orthographic projection area of ​​the touch trace 61 on the first sub-isolation portion 401 is smaller than the orthographic projection area of ​​the touch trace 61 on the second sub-isolation portion 402.

[0071] Specifically, the touch trace 61 includes multiple first traces 611, multiple second traces 612, multiple third traces 613, and multiple fourth traces 614. The first traces 611 and second traces 612 both extend along a first direction X and are arranged along a second direction Y. Two second traces 612 are provided between adjacent first traces 611. The orthographic projection of the first trace 611 onto the pixel limiting layer 20 is at least partially located on the first sub-limiting portion 221, and the orthographic projection of the second trace 612 onto the pixel limiting layer 20 is at least partially located on the second sub-limiting portion 222. The third traces 613 and fourth traces 614 both extend along the second direction Y and are arranged along the first direction X. A fourth trace 614 is provided between adjacent third traces 613. In this design, a first trace 611 is provided between two adjacent pixel units PG in the second direction Y, and a third trace 613 is provided between two adjacent pixel units PG in the first direction X. The first trace 611 and the third trace 613 intersect to form a mesh structure. A fourth trace 614 passes through the pixel unit PG, and the orthographic projection of the fourth trace 614 on the pixel limiting layer 20 is located between the first opening 21R, the second opening 21G, and the third opening 21B. In the same pixel unit PG, the orthographic projections of the two second traces 612 located between two adjacent first traces 611 on the pixel limiting layer 20 are both located between the first opening 21R and the second opening 21G, and the two ends of the second trace 612 in the first direction X are electrically connected to the adjacent third trace 613 and the fourth trace 614 located on both sides of the first opening 21R and the second opening 21G, respectively. In this configuration, the linewidth e of the first trace 611 is equal to the linewidth f of the second trace 612, and the linewidths of the third trace 613 and the fourth trace 614 are equal. Furthermore, the linewidth f of multiple touch traces 61 projected onto the same second sub-limiting portion 222 is the same, meaning the linewidth f of two adjacent second traces 612 is also equal. Further, the linewidths of the first trace 611 and the second trace 612 are equal to the linewidths of the third trace and the fourth trace 614.

[0072] That is, in this embodiment of the invention, the second sub-limiting portion 222 between the first opening 21R and the second opening 21G in the same pixel unit PG has the orthographic projection of two touch traces 61 (i.e., second traces 612), while the number of touch traces 61 (i.e., first traces 611) on the first sub-limiting portion 221 between two adjacent pixel units PG is only one. By adjusting the spacing between the two second traces 612, the distance between the two second traces 612 and the adjacent first opening 21R or second opening 21G in the second direction Y can be adjusted, thereby causing the distance between the first opening 21R and the adjacent second trace 612 in the second direction Y to be equal to the distance between the first opening 21R and the adjacent first opening 21G. The distance of the trace 611 in the second direction Y can also make the distance between the second opening 21G and the adjacent second trace 612 in the second direction Y equal to the distance between the second opening 21G and the adjacent first trace 611 in the second direction Y. Therefore, even if the spacing between the two sides of the first opening 21R and the second opening 21G in the second direction Y and the adjacent pixel opening 21 is not equal (i.e. the width c of the first sub-limiting portion 221 and the width d of the second sub-limiting portion 222 are not equal), it can be ensured that the distance between the light-emitting device 30 located in the first opening 21R and the second opening 21G and the adjacent touch trace 61 in the second direction Y is equal, thereby improving the problem of screen deviation when viewing the display panel 1.

[0073] Furthermore, the distances on both sides of the third opening 21B in the second direction Y are equal to the distances on the adjacent first trace 611 in the second direction Y, thereby making the distances on the upper and lower sides of the light-emitting device 30 in the third opening 21B equal to the distances on the adjacent touch traces 61. In the first direction X, the distances on the first opening 21R and the second opening 21G are equal to the distances on the adjacent third trace 613 and the fourth trace 614, respectively. The distances on both sides of the third opening 21B are also equal to the distances on the adjacent third trace 613 and the fourth trace 614, respectively, thereby making the distances on the left and right sides of the light-emitting device 30 in the first opening 21R, the second opening 21G, and the third opening 21B equal to the distances on the adjacent touch traces 61 in the first direction X. By making the spacing between the pixel opening 21 and the adjacent touch traces 61 equal, the influence of the touch traces 61 on the upper and lower sides and the left and right sides of the light-emitting device 30 on the light is balanced, thereby reducing the light emission differences between different positions of the light-emitting device 30 and improving the color shift problem of the display panel 1.

[0074] Furthermore, in adjacent first light-emitting devices 30G and second light-emitting devices 30G, the distance between the connection end 311 and the adjacent second trace 612 in the second direction Y is less than the distance between the connection end 311 and the adjacent first trace 611 in the second direction Y. Moreover, the orthographic projection of the connection end 311 of the adjacent first light-emitting devices 30G and second light-emitting devices 30G on the substrate 10 is located within the orthographic projection range of the same second sub-limiting portion 222 on the substrate 10. That is, the connection end 311 of the first electrode 31 of the first light-emitting device 30R corresponding to the first opening 21R and the second light-emitting device 30G corresponding to the second opening 21G are respectively located on the same side of the corresponding light-emitting device 30 with the adjacent second trace 612, thereby further improving the viewing angle distortion problem of the display panel 1.

[0075] On the other hand, another embodiment of the present invention also provides a display panel 1, such as... Figure 4 As shown, the display panel 1 has a display area AA and a non-display area NA connected to the display area AA. Multiple light-emitting devices 30 are provided in the display area AA, each of which can independently emit light to display an image in the display area AA. The non-display area NA contains driving devices and multiple signal lines. One end of each signal line is electrically connected to the driving device, and the other end extends into the display area AA and is electrically connected to the light-emitting devices 30 located in the display area AA. The driving device can be a flexible printed circuit (FPC), a driver chip (IC), or other electronic components. The driving device can send display signals to the display area AA through the signal lines according to display requirements. The display area AA can then illuminate the corresponding light-emitting device 30 according to the display signal, thereby controlling the displayed image.

[0076] like Figure 5 and Figure 6 As shown, the display panel 1 also includes a substrate 10, a pixel defining layer 20, an isolation structure 40, and a touch layer 60. The substrate 10 is used to drive the light-emitting devices 30; the pixel defining layer 20 is disposed on one side of the substrate 10 and defines the light-emitting area of ​​the light-emitting device 30; the isolation structure 40 is disposed on the side of the pixel defining layer 20 facing away from the substrate 10 and encloses multiple isolation openings 43, which block the vapor-deposited material and disconnect the vapor-deposited material in adjacent isolation openings 43, thereby isolating different light-emitting devices 30; the touch layer 60 is used to transmit touch signals to realize touch operation.

[0077] The substrate 10 is an array substrate, comprising an array of thin-film transistors 11 and signal traces. Each light-emitting device 30 is electrically connected to at least one thin-film transistor 11 located in the display area AA. The driving device can be bonded to the substrate 10 in the non-display area NA using COF (Chip On Film) or FOP (Flexible Printed Circuit Board On Panel) technology, electrically connecting the driving device to one end of the signal trace. The signal trace extends from the non-display area NA to the display area AA, and its other end is electrically connected to the thin-film transistor 11 located in the display area AA. The driving device transmits display signals to the corresponding thin-film transistor 11 through the signal trace. The thin-film transistor 11 conducts the corresponding light-emitting device 30 according to the display signal, thereby causing the light-emitting device 30 at the corresponding position to emit light, thus forming an image. At the same time, the driving chip can also realize the change of the display image by sending different display signals.

[0078] A pixel defining layer 20 is disposed on the surface of the substrate 10. The pixel defining layer 20 includes a pixel defining portion 22 and a plurality of pixel openings 21 formed by the speed limiting portion. At least a portion of the light-emitting device 30 is disposed in the pixel openings 21. Specifically, the plurality of pixel openings 21 includes a plurality of first openings 21R, a plurality of second openings 21G, and a plurality of third openings 21B. The first openings 21R and the second openings 21G are arranged at intervals along a second direction Y parallel to the plane of the substrate 10. The third openings 21B are also arranged one by one along the second direction Y. A row of third openings 21B is provided between two adjacent rows of first openings 21R and second openings 21G. That is, the third openings 21B have first openings 21R and second openings 21G on both sides of a first direction X parallel to the plane of the substrate 10 and perpendicular to the second direction Y.

[0079] A light-emitting device 30 is disposed on one side of the substrate 10, and at least a portion of the light-emitting device 30 is located in the corresponding pixel opening 21. The light-emitting device 30 includes a first electrode 31, a light-emitting layer 32, and a second electrode 33. The first electrode 31 is disposed between the substrate 10 and the pixel defining layer 20, and at least a portion of the first electrode 31 is exposed in the corresponding pixel opening 20. The first electrode 31 has a connection end 311, which is electrically connected to the source or drain of the corresponding thin-film transistor 11 through a via in the substrate 10. The light-emitting layer 32 is located on the side of the first electrode 31 facing away from the substrate 10, covers the exposed surface of the first electrode 31 in the pixel opening 21, and extends from the surface of the first electrode 31 to the side of the pixel defining portion 22 facing away from the substrate 10. The second electrode 33 is stacked on the side of the light-emitting layer 32 facing away from the substrate 10, and extends from the light-emitting layer 32 facing away from the substrate 10 to the surface of the isolation structure 40 facing the isolation opening 43, thereby facilitating the electrical connection between the second electrode 33 and the isolation structure 40.

[0080] The display panel 1 has multiple pixel units PG arranged in an array. Each pixel unit PG has at least two pixel openings 21, which also have at least two light-emitting devices 30. In this embodiment of the invention, each pixel unit PG includes three pixel openings 21: a first opening 21R, a second opening 21G, and a third opening 21B. That is, each pixel unit PG also includes three light-emitting devices 30: a first light-emitting device 30R at least partially disposed in the first opening 21R, a second light-emitting device 30G at least partially disposed in the second opening 21G, and a third light-emitting device 30B at least partially disposed in the third opening 21B. Specifically, in the same pixel unit PG, the first opening 21R and the second opening 21G are arranged along the second direction Y, and the third opening 21B is located on the same side of the first opening 21R and the second opening 21G in the first direction X, thereby enabling light-emitting devices capable of emitting different colors to be evenly distributed in the display area AA. In this design, the wavelength of light emitted by the first light-emitting device 30R is greater than that of the second light-emitting device 30G, and the wavelength of light emitted by the second light-emitting device 30G is greater than that of the third light-emitting device 30B. For example, the first light-emitting device 30R can emit red light, the second light-emitting device 30G can emit green light, and the third light-emitting device 30B can emit blue light. By uniformly distributing these light-emitting devices 30 that can emit different colors of light, color image display can be achieved. Furthermore, since the light-emitting materials used in the different colored light-emitting devices are different, the luminous efficiency and lifespan of the different colored light-emitting devices 30 are also different. In order to balance the luminous efficiency and lifespan of the different colored light-emitting devices 30, pixel openings 21 of different sizes are provided. That is, the projected area of ​​the first opening 21R on the substrate 10 is smaller than that of the second opening 21G on the substrate 10, and the projected area of ​​the second opening 21G on the substrate 10 is smaller than that of the third opening 21B on the substrate 10, thereby ensuring that the luminous efficiency and lifespan of the different colored light-emitting devices 30 are similar.

[0081] An isolation structure 40 is disposed on the side of the pixel limiting layer 20 facing away from the substrate 10, and the orthographic projection of the isolation structure 40 on the substrate 10 is within the orthographic projection range of the pixel limiting portion 22 on the substrate 10. The isolation structure 40 includes a first isolation portion 41, a second isolation portion 42, and an isolation opening 43. The first isolation portion 41 is disposed on the side of the pixel limiting portion 22 facing away from the substrate 10, and the second isolation portion 42 is stacked on the side of the first isolation portion 41 facing away from the substrate 10. The isolation opening 43 penetrates the first isolation portion 41 and the second isolation portion 42 and communicates with the corresponding pixel opening 21, enabling a portion of the material in the light-emitting device 30 to be deposited in the pixel opening 21. The orthographic projection of the light-emitting layer 32 on the substrate 10 is outside the range of the orthographic projection of the first isolation portion 41 on the substrate 10. A second electrode 33 extends from the surface of the light-emitting layer 32 facing away from the substrate 10 to the sidewall of the first isolation portion 41 facing the isolation opening 43 and is electrically connected to the first isolation portion 41. The second electrode 33 can obtain a power signal through the first isolation portion 41.

[0082] The encapsulation film assembly 50 includes a first encapsulation layer 51, a second encapsulation layer 52, and a third encapsulation layer 53 stacked sequentially. The first encapsulation layer 51 includes multiple sub-encapsulation portions disposed on the side of the light-emitting device 30 facing away from the substrate 10, and each isolation opening 43 has at least one sub-encapsulation portion. Specifically, the sub-encapsulation portions extend from the surface of the second electrode 33 facing away from the substrate 10 to the surface of the isolation structure 40 facing away from the substrate 10. The second encapsulation layer 52 is disposed on the side of the first encapsulation layer 51 facing away from the substrate 10 and fills the gaps between the isolation openings 43 and the sub-encapsulation portions, improving the flatness of the panel surface. The third encapsulation layer 53 is disposed on the side of the second encapsulation layer 52 facing away from the substrate 10. The encapsulation film assembly 50 is used to encapsulate and protect the display device in the display panel 1. It can be prepared by a thin film encapsulation (TIF) process, and its material includes at least one of inorganic and organic materials. Specifically, the materials of the first encapsulation layer 51 and the third encapsulation layer 53 may include inorganic materials and may be prepared by chemical vapor deposition (CVD); the material of the second encapsulation layer 52 may include organic materials and may be prepared by coating process.

[0083] The touch layer 60 is disposed on the side of the encapsulation film assembly 50 facing away from the substrate 10. It includes multiple touch traces 61. The orthographic projection of the touch traces 61 on the substrate 10 is located within the orthographic projection range of the pixel limiting portion 22 and the isolation structure 40 on the substrate 10. That is, the orthographic projection of the touch traces 61 on the substrate 10 is outside the orthographic projection range of the pixel opening 21 on the substrate 10 and there is a gap between them, thereby preventing the touch traces 61 from affecting the light emission efficiency due to blocking the light emission path of the light-emitting device 30. The touch traces 61 include multiple longitudinal touch traces 61 extending along the second direction Y and transverse touch traces 61 extending along the first direction X. Multiple traces with different extension directions intersect and connect to form a mesh-like trace structure, and the mesh in the mesh-like trace structure corresponds to the pixel opening 21.

[0084] To balance the luminous efficiency and lifespan of different color light-emitting devices 30, pixel openings 21 of different sizes are provided, resulting in at least some pixel openings 21 having unequal spacing between their two sides and adjacent pixel openings 21. Specifically, in the second direction Y, the pixel defining portion 22 includes a first sub-defining portion 221 and a second sub-defining portion 222 located on both sides of the first opening 21R and the second opening 21G, respectively. The first sub-defining portion 221 and the second sub-defining portion 222 extend along the first direction X and are arranged along the second direction Y. The second sub-defining portion 222 is located between the first opening 21R and the second opening 21G, the first sub-defining portion 221 is located on the side of the first opening 21R and the second opening 21G away from the second sub-defining portion 222, and the second sub-defining portion 222 is located on both sides of the third opening 21B in the first direction X. Specifically, the first opening 21R has a first side 201 and a second side 202 extending along the first direction X on both sides in the second direction Y. A first sub-limiting portion 221 is provided between the first side 201 and the adjacent second opening 21G, and a second sub-limiting portion 222 is provided between the second side 202 and the adjacent second opening 21G. The second opening 21G has a third side 203 and a fourth side 204 extending along the first direction X on both sides in the second direction Y. A second sub-limiting portion 222 is provided between the third side 203 and the adjacent first opening 21R, and a first sub-limiting portion 221 is provided between the fourth side 204 and the adjacent first opening 21R. That is, a first sub-limiting portion 221 is provided between the first side 201 and the adjacent fourth side 204, and a second sub-limiting portion 222 is provided between the second side 202 and the adjacent third side 203. Furthermore, the adjacent first side 201 and fourth side 204 overlap with the same first sub-limiting portion 221 on the sidewalls of the first opening 21R and the second opening 21G, respectively, and the adjacent second side 202 and third side 203 overlap with the same second sub-limiting portion 222 on the sidewalls of the first opening 21R and the second opening 21G, respectively. In the second direction Y, the width c of the first sub-limiting portion 221 is smaller than the width d of the second sub-limiting portion 222, meaning that the distances between the two sides of the first opening 21R and the adjacent second opening 21G in the second direction Y are not equal, and the distances between the two sides of the second opening 21G and the adjacent first opening 21R in the second direction Y are also not equal. Therefore, in the second direction Y, setting the same line width and the same number of touch traces 61 only between the first opening 21R and the second opening 21G will cause the distance between the first opening 21R and the second opening 21G and the adjacent touch traces 61 to be unequal, which will easily cause viewing angle deviation and affect the display effect of the display panel 1.

[0085] Therefore, in this embodiment of the invention, the line widths of the touch traces 61 located on both sides of the partial pixel opening 21 are different. Specifically, the number of touch traces 61 projected onto the first sub-limiting portion 221 is equal to the number of touch traces 61 projected onto the second sub-limiting portion 222, and the line width e of the touch traces 61 projected onto the first sub-limiting portion 221 is less than the line width f of the touch traces 61 projected onto the second sub-limiting portion 222. That is, a touch trace 61 is provided on both sides of the first opening 21R and the second opening 21G in the second direction Y, and the line widths of the touch traces 61 on both sides are different, thereby causing the projected area of ​​the touch trace 61 on the first sub-limiting portion 221 to be smaller than the projected area of ​​the touch trace 61 on the second sub-limiting portion 222. In this configuration, in the same direction parallel to the plane of the substrate 10, at least one side of the pixel opening 21 has a first spacing 'a' between it and an adjacent touch trace 61, and the other side of the pixel opening 21 has a second spacing 'b' between it and an adjacent touch trace 61. The first spacing 'a' and the second spacing 'b' are similar, meaning the difference between them is 0-2 micrometers. Preferably, the difference between them is 0, meaning the first spacing 'a' equals the second spacing 'b'. For example, the distances between the two sides of the pixel opening 21 in the first direction X and the adjacent vertical touch traces 61 are equal, and the distances between the two sides of the pixel opening 21 in the second direction Y and the adjacent horizontal touch traces 61 are equal. This ensures that the distances between the light-emitting device 30 located in at least a portion of the pixel opening 21 and the surrounding adjacent touch traces 61 are equal both horizontally and vertically, thereby improving the viewing angle distortion problem of the display panel 1.

[0086] Further, the isolation structure includes a first sub-isolation portion 401 and a second sub-isolation portion 402 located on opposite sides of at least a portion of the pixel opening 21. The first sub-isolation portion 401 and the second sub-isolation portion 402 extend along a first direction X and are arranged along a second direction Y. The orthographic projection of the first sub-isolation portion 401 onto the substrate 10 lies within the orthographic projection range of the first sub-limiting portion 221 onto the substrate 10, and the orthographic projection of the second sub-isolation portion 402 onto the substrate 10 lies within the orthographic projection range of the second sub-limiting portion 222 onto the substrate 10. In the second direction Y, the width of the first sub-isolation portion 401 is smaller than the width of the second sub-isolation portion 402. Furthermore, the orthographic projection area of ​​the touch trace 61 on the first sub-isolation portion 401 is smaller than the orthographic projection area of ​​the touch trace 61 on the second sub-isolation portion 402. Specifically, the touch trace 61 includes multiple first traces 611, multiple second traces 612, multiple third traces 613, and multiple fourth traces 614. The first trace 611 and the second trace 612 both extend along the first direction X and are arranged along the second direction Y. A second trace 612 is provided between two adjacent first traces 611. The orthographic projection of the first trace 611 onto the pixel limiting layer 20 is at least partially located on the first sub-limiting portion 221, and the orthographic projection of the second trace 612 onto the pixel limiting layer 20 is at least partially located on the second sub-limiting portion 222. The linewidth e of the first trace 611 is smaller than the linewidth f of the second trace 612. The third trace 613 and the fourth trace 614 both extend along the second direction Y and are arranged along the first direction X. A fourth trace 614 is provided between two adjacent third traces 613. Specifically, a first trace 611 is provided between two adjacent pixel units PG in the second direction Y, and a third trace 613 is provided between two adjacent pixel units PG in the first direction X. The first trace 611 and the third trace 613 intersect to form a mesh structure. The fourth trace 614 passes through the pixel unit PG. The orthographic projection of the fourth trace 614 onto the pixel limiting layer 20 lies between the first opening 21R, the second opening 21G, and the third opening 21B. Within the same pixel unit PG, the orthographic projections of the two second traces 612 located between two adjacent first traces 611 onto the pixel limiting layer 20 are both located between the first opening 21R and the second opening 21G. The two ends of the second trace 612 in the first direction X are electrically connected to the adjacent third trace 613 and the fourth trace 614 located on either side of the first opening 21R and the second opening 21G, respectively. The linewidths of the first trace 611, the third trace 613, and the fourth trace 614 are equal.

[0087] That is, in this embodiment of the invention, the line width f of the touch trace 61 (i.e., the second trace 612) on the second sub-limiting portion 222 between the first opening 21R and the second opening 21G in the same pixel unit PG is greater than the line width e of the touch trace 61 (i.e., the first trace 611) on the first sub-limiting portion 221 between two adjacent pixel units PG. By adjusting the line width f of the second trace 612, the distance between the second trace 612 and the adjacent first opening 21R or second opening 21G in the second direction Y can be adjusted, thereby causing the distance between the first opening 21R and the adjacent second trace 612 in the second direction Y to be equal to the distance between the first opening 21R and the adjacent first trace 611 in the second direction Y. The distance in the second direction Y can also make the distance between the second opening 21G and the adjacent second trace 612 in the second direction Y equal to the distance between the second opening 21G and the adjacent first trace 611 in the second direction Y. Therefore, even if the spacing between the first opening 21R and the second opening 21G and the adjacent pixel opening 21 in the second direction Y is not equal (i.e. the width c of the first sub-limiting portion 221 and the width d of the second sub-limiting portion 222 are not equal), it can be ensured that the distance between the light-emitting device 30 located in the first opening 21R and the second opening 21G and the adjacent touch trace 61 in the second direction Y is equal, thereby improving the problem of screen deviation when viewing the display panel 1.

[0088] Furthermore, the distances on both sides of the third opening 21B in the second direction Y are equal to those on the adjacent first trace 611 in the second direction Y, thereby making the distances between the upper and lower sides of the light-emitting device 30 in the third opening 21B and the adjacent touch traces 61 equal. In the first direction X, the distances between the first opening 21R and the second opening 21G and the adjacent third traces 613 and 614 respectively are equal, and the distances on both sides of the third opening 21B and the adjacent third traces 613 and 614 respectively are also equal, thereby making the distances between the left and right sides of the light-emitting device 30 in the first opening 21R, second opening 21G, and third opening 21B and the adjacent touch traces 61 equal. By making the spacing between the pixel opening 21 and the adjacent touch traces 61 equal, the influence of the touch traces 61 on the upper and lower sides and the left and right sides of the light-emitting device 30 on the light is balanced, thereby reducing the light emission difference between different positions of the light-emitting device 30 and improving the color shift problem of the display panel 1.

[0089] Furthermore, in adjacent first light-emitting devices 30G and second light-emitting devices 30G, the distance between the connection end 311 and the adjacent second trace 612 in the second direction Y is less than the distance between the connection end 311 and the adjacent first trace 611 in the second direction Y. Moreover, the orthographic projection of the connection end 311 of the adjacent first light-emitting devices 30G and second light-emitting devices 30G on the substrate 10 is located within the orthographic projection range of the same second sub-limiting portion 222 on the substrate 10. That is, the connection end 311 of the first electrode 31 of the first light-emitting device 30R corresponding to the first opening 21R and the second light-emitting device 30G corresponding to the second opening 21G are respectively located on the same side of the corresponding light-emitting device 30 with the adjacent second trace 612, thereby further improving the viewing angle distortion problem of the display panel 1.

[0090] On the other hand, this embodiment of the invention also provides a display device, which can be an OLED display device, including any of the display panels 1 described in the above embodiments. The display device can be any display device with display functionality, such as a mobile phone, laptop computer, tablet computer, etc.

[0091] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A display panel, characterized in that, include: substrate; A pixel defining layer is disposed on one side of the substrate, and includes a pixel defining portion and the pixel defining portion enclosing a plurality of pixel openings; An isolation structure is provided on the side of the pixel defining layer opposite to the substrate, and the isolation structure encloses and forms a plurality of isolation openings, the isolation openings being connected to the corresponding pixel openings; A touch layer is disposed on the side of the isolation structure opposite to the substrate. The touch layer includes multiple touch traces, and the orthographic projection of the touch traces on the substrate is located within the orthographic projection range of the pixel limiting portion on the substrate. In the same direction parallel to the plane of the substrate, at least one side of the pixel opening has a first spacing with the adjacent touch trace, and the other side of the pixel opening has a second spacing with the adjacent touch trace, the difference between the first spacing and the second spacing being 0-2 micrometers.

2. The display panel as described in claim 1, characterized in that, The pixel defining portion includes a first sub-defining portion and a second sub-defining portion located on opposite sides of at least a portion of the pixel opening, and the orthographic projection area of ​​the touch trace on the first sub-defining portion is smaller than the orthographic projection area of ​​the touch trace on the second sub-defining portion; Preferably, the first sub-defining portion and the second sub-defining portion extend along a first direction parallel to the plane of the substrate and are arranged along a second direction parallel to the plane of the substrate and perpendicular to the first direction; Preferably, in the second direction, the width of the first sub-defining portion is smaller than the width of the second sub-defining portion; Preferably, the first spacing is equal to the second spacing.

3. The display panel as described in claim 1, characterized in that, The isolation structure includes a first sub-isolation portion and a second sub-isolation portion located on opposite sides of at least a portion of the pixel opening, and the orthogonal projection area of ​​the touch trace on the first sub-isolation portion is smaller than the orthogonal projection area of ​​the touch trace on the second sub-isolation portion; Preferably, the first sub-isolation portion and the second sub-isolation portion extend along a first direction parallel to the plane of the substrate and are arranged along a second direction parallel to the plane of the substrate and perpendicular to the first direction; Preferably, in the second direction, the width of the first sub-isolation portion is smaller than the width of the second sub-isolation portion.

4. The display panel as described in claim 1, characterized in that, The number of touch traces projected onto the first sub-limiting portion is less than the number of touch traces projected onto the second sub-limiting portion; Preferably, there are multiple touch traces whose orthographic projections are located on the same second sub-defining portion, and the line widths of the multiple touch traces whose orthographic projections are located on the same second sub-defining portion are the same; Preferably, the linewidth of the touch trace projected onto the first sub-defining portion is less than or equal to the linewidth of the touch trace projected onto the second sub-defining portion.

5. The display panel as described in claim 1, characterized in that, The number of touch traces orthographically projected onto the first sub-limiting portion is equal to the number of touch traces orthographically projected onto the second sub-limiting portion. The line width of the touch trace projected onto the first sub-limiting portion is smaller than the line width of the touch trace projected onto the second sub-limiting portion.

6. The display panel as described in claim 2, characterized in that, The touch traces include multiple parallel first traces and second traces. The first traces and the second traces extend along a first direction parallel to the plane of the substrate and are arranged along a second direction perpendicular to the first direction. There is at least one second route between two adjacent first routes; Preferably, the orthographic projection of the first trace onto the pixel defining layer is at least partially located on the first sub-defining portion; Preferably, the orthographic projection of the second trace onto the pixel defining layer is at least partially located on the second sub-defining portion; Preferably, the line width of the first trace is less than or equal to the line width of the second trace.

7. The display panel as described in claim 6, characterized in that, There are at least two second routes between two adjacent first routes; Preferably, the orthographic projections of at least two of the second traces onto the pixel defining layer are at least partially located on the second sub-defining portion; Preferably, the line width of the first trace is equal to the line width of the second trace.

8. The display panel as described in claim 6, characterized in that, The touch traces also include multiple parallel and spaced third and fourth traces, which extend along the second direction and are arranged along the first direction; Preferably, the first trace intersects with the third trace and the fourth trace, forming a mesh structure; Preferably, the two ends of the second trace are connected to the adjacent third trace and the fourth trace, respectively.

9. The display panel as described in claim 2, characterized in that, The plurality of pixel openings include a plurality of first openings and a plurality of second openings, wherein the first openings and the second openings are spaced apart along the second direction; Preferably, the first opening has a first side and a second side extending along the first direction on both sides of the second direction, and a first sub-limiting portion is provided between the first side and the adjacent second opening, and a second sub-limiting portion is provided between the second side and the adjacent second opening. Preferably, the second opening has a third side and a fourth side extending along the first direction on both sides of the second direction, the third side is provided with a second sub-limiting portion between it and the adjacent first opening, and the fourth side is provided with a first sub-limiting portion between it and the adjacent first opening. Preferably, the plurality of pixel openings further includes a plurality of third openings, the third openings being arranged sequentially along the second direction; Preferably, the third opening has the first opening and the second opening on both sides in the first direction; preferably, the orthographic projection area of ​​the first opening and the second opening on the substrate is smaller than the orthographic projection area of ​​the third opening on the substrate. Preferably, the projected area of ​​the first opening on the substrate is smaller than the projected area of ​​the second opening on the substrate.

10. The display panel as claimed in claim 1, characterized in that, Also includes: Multiple light-emitting devices, at least a portion of which are located within the corresponding pixel opening; Preferably, the light-emitting device includes: A light-emitting layer, at least a portion of which is located in the corresponding pixel opening; The second electrode is disposed on the side of the light-emitting layer opposite to the substrate and is electrically connected to the isolation structure.

11. The display panel as claimed in claim 6, characterized in that, The light-emitting device further includes: A first electrode is located between the pixel defining layer and the substrate, and at least a portion of the first electrode is exposed in the corresponding pixel opening; Preferably, the first electrode includes at least one connection end, the connection end being located on the side of the first electrode opposite to the light-emitting layer and extending toward the substrate side; Preferably, in the second direction, at least a portion of the connection end is at a distance from an adjacent second trace less than the distance between the connection end and an adjacent first trace.

12. The display panel as claimed in claim 11, characterized in that, The plurality of light-emitting devices include: A first light-emitting device, at least a portion of which is located within the corresponding pixel opening; A second light-emitting device, at least a portion of which is located within the corresponding pixel opening; Preferably, in the first light-emitting device, the distance between the connection end and the adjacent second trace in the second direction is less than the horizontal distance between the connection end and the adjacent first trace in the second direction; Preferably, in the second light-emitting device, the distance between the connection end and the adjacent second trace in the second direction is less than the horizontal distance between the connection end and the adjacent first trace in the second direction; Preferably, the orthographic projections of the connection ends of adjacent first and second light-emitting devices on the substrate are located within the orthographic projection range of the same second sub-defining portion on the substrate.

13. The display panel as claimed in claim 9, characterized in that, The second sub-limiting portion is located between the first opening and the second opening, and the first sub-limiting portion is located on the side of the first opening and the second opening away from the second sub-limiting portion; Preferably, the second sub-defining portion is located on both sides of the third opening in the first direction.

14. The display panel as claimed in claim 12, characterized in that, The plurality of light-emitting devices further includes a third light-emitting device, at least a portion of which is located within the corresponding pixel opening; Preferably, the wavelengths of light emitted by the first light-emitting device and the second light-emitting device are both greater than the wavelength of light emitted by the third light-emitting device; Preferably, the wavelength of light emitted by the first light-emitting device is greater than the wavelength of light emitted by the second light-emitting device.

15. The display panel as claimed in claim 10, characterized in that, The isolation structure includes: A first isolation portion is disposed on one side of the substrate; The second isolation portion is disposed on the side of the first isolation portion away from the substrate; The isolation opening extends through the first isolation portion and the second isolation portion, and at least a portion of the light-emitting device is disposed in the isolation opening and electrically connected to the isolation opening; Preferably, the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection range of the second isolation portion on the substrate; Preferably, the materials of the first isolation portion and the second isolation portion include metallic materials.

16. The display panel as claimed in claim 10, characterized in that, Also includes: An encapsulation film assembly is disposed on the side of the light-emitting device facing away from the substrate, and the touch layer is located on the side of the encapsulation film assembly facing away from the substrate; Preferably, the encapsulation film assembly comprises: A first encapsulation layer is disposed on the side of the light-emitting device away from the substrate and extends to the side of the isolation structure away from the substrate. The second encapsulation layer is disposed on the side of the first encapsulation layer opposite to the substrate; The third encapsulation layer is disposed on the side of the second encapsulation layer opposite to the substrate; Preferably, the material of the encapsulation film assembly includes at least one of inorganic and organic materials.

17. A display device, characterized in that, Includes the display panel as described in any one of claims 1-16.

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