Display panel, display module and electronic equipment

Abstract

The invention provides a display panel, a display module and electronic equipment. Relates to the technical field of electronic equipment. The display panel provided by the invention comprises a driving substrate, a plurality of pixel units and touch wires, each pixel unit comprises at least two sub-pixels, and the at least two sub-pixels comprise a first sub-pixel and a second color sub-pixel; the touch wires are arranged on the sides, away from the driving substrate, of the multiple pixel units, and the touch wires comprise first touch wires located between the first sub-pixels and the second sub-pixels; the display panel further comprises first floating metal wires, the first floating metal wires are arranged between the first touch wires and the first color sub-pixels, and the first floating metal wires are electrically isolated from the first touch wires. According to the display panel, the first floating metal wires are arranged, the light emitting brightness of the squint angle of the first sub-pixels is reduced, the color cast problem can be solved under the large angle of view after the first sub-pixels are mixed into white light, and the performance of the display panel is improved.

Description

Technical Field

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

[0002] Self-emissive display panels are widely used in electronic devices due to their high brightness, low power consumption, long lifespan, and wide viewing angle. However, because of the strong multi-beam interference effect of the microcavities, these devices suffer from severe color distortion at wide viewing angles, which directly affects the consumer's experience with electronic devices.

[0003] Therefore, how to reduce color shift over a wide viewing angle and improve the performance of light-emitting display panels is a technical problem that needs to be solved in this field. Summary of the Invention

[0004] This application provides a display panel, a display module, and an electronic device. The main objective is to reduce color cast at wide viewing angles.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions: In a first aspect, this application provides a display panel that may include organic light-emitting diodes (OLEDs).

[0006] The display panel provided in this application includes: a driving substrate, multiple pixel units, and touch traces. The multiple pixel units are disposed on the driving substrate, and each pixel unit includes at least two sub-pixels, the at least two sub-pixels including a first sub-pixel and a second sub-pixel. The touch traces are disposed on the side of the multiple pixel units away from the driving substrate. The touch traces have a mesh structure and form multiple mesh holes, with each mesh hole corresponding to a sub-pixel. The touch traces include a first touch trace located between the first sub-pixel and the second sub-pixel. The display panel also includes a first floating ground metal trace. A first floating ground metal trace is disposed between the first touch trace and the first sub-pixel, and the first floating ground metal trace is electrically isolated from the first touch trace.

[0007] In the display panel provided in this application, the first floating ground metal trace is electrically isolated from the first touch trace. By setting the first floating ground metal trace between the first touch trace and the first sub-pixel between adjacent first sub-pixels and second sub-pixels, the brightness of the first sub-pixel at the oblique viewing angle can be reduced. For example, if the viewing angle is greater than or equal to 60°, the brightness ratio of the first sub-pixel and the second sub-pixel can be adjusted. After mixing into white light, the color shift problem can be improved at a wide viewing angle, thereby enhancing the performance of the display panel.

[0008] In one possible implementation, the distance between the first touch trace and the second sub-pixel is not equal to the distance between the first floating metal trace and the first sub-pixel.

[0009] The first touch trace can reduce the brightness of the second sub-pixel from the oblique angle, and the first floating metal trace can reduce the brightness of the first sub-pixel from the oblique angle. When the distance between the first touch trace and the second sub-pixel is not equal to the distance between the first floating metal trace and the first sub-pixel, the brightness attenuation of the first sub-pixel and the second sub-pixel is different, which affects the color shift trajectory of the mixed white light and the degree of color shift that can be perceived by the human eye. In one possible implementation, an isolation groove is provided between the first sub-pixel and the second sub-pixel; the isolation groove is located between the first touch trace and the first floating ground metal trace, or the first floating ground metal trace at least partially covers the isolation groove.

[0010] In this example, since the isolation groove is located between the first touch trace and the first floating ground metal trace, or at least partially covers the isolation groove by the first floating ground metal trace, the water ripple effect will not be aggravated; in addition, the color shift problem at large viewing angles can be improved, further enhancing the performance of the display panel.

[0011] In one possible implementation, each sub-pixel includes: an anode layer, a first organic light-emitting layer, a charge-generating layer, a second organic light-emitting layer, and a cathode layer stacked sequentially along a direction away from the driving substrate; an isolation trench is located between the charge-generating layers of the first sub-pixel and the charge-generating layers of the second sub-pixel.

[0012] This can be understood as: the first floating ground metal trace can be set in a double-layer light-emitting device (Tandem).

[0013] In one possible implementation, the distance between the first touch trace and the second sub-pixel is less than the distance between the first touch trace and the first sub-pixel.

[0014] In other words, between two adjacent sub-pixels, the distance between the first touch trace and one sub-pixel is greater than the distance between the first touch trace and the other sub-pixel. This means the first touch trace is offset between the two sub-pixels, making it closer to the first sub-pixel and reducing the light output brightness of the first sub-pixel at a wide viewing angle. Furthermore, there is a floating ground metal trace between the touch trace and the second sub-pixel. This floating ground metal trace reduces the light output brightness of the second sub-pixel at a wide viewing angle. Through the combined effect of the offset setting of the touch trace and the floating ground metal trace, the light output brightness ratio of the first and second sub-pixels can be further optimized, further improving the color cast problem at a wide viewing angle.

[0015] In one possible implementation, a first touch trace located between a first sub-pixel and a second sub-pixel has a distance a1 from the first sub-pixel, and a first floating metal trace has a distance a2 from the second sub-pixel, where a1 and a2 are not equal.

[0016] In this example, since a1 and a2 are not equal, for example, when a1 is greater than a2, the ratio of the brightness of the first sub-pixel and the second sub-pixel can be reduced, or when a1 is less than a2, the ratio of the brightness of the first sub-pixel and the second sub-pixel can be increased.

[0017] In one possible implementation, the linewidth of the first touch trace located between the first sub-pixel and the second sub-pixel is greater than the linewidth of the first floating ground metal trace.

[0018] Since the line width of the first touch trace is greater than that of the first floating ground metal trace, the impedance of the touch trace can be reduced, thereby improving the performance of the display panel.

[0019] In one possible implementation, the linewidth of the first touch trace located between the first sub-pixel and the second sub-pixel is smaller than the linewidth of the first floating ground metal trace.

[0020] From a manufacturing perspective, it is easier to manufacture floating ground metal traces with wider line widths than touch traces.

[0021] In one possible implementation, the linewidth of the first touch trace located between the first sub-pixel and the second sub-pixel is equal to the linewidth of the first floating ground metal trace.

[0022] In one possible implementation, the touch trace further includes a second touch trace, and the first touch trace and the second touch trace are respectively disposed on opposite sides of the second sub-pixel along a first direction, the first direction being parallel to the arrangement direction of the first sub-pixel and the second sub-pixel; the distance between the first touch trace and the second sub-pixel is not equal to the distance between the second touch trace and the second sub-pixel.

[0023] This can be understood as: the offset setting of some touch traces around the second sub-pixel can change the light output brightness of the second sub-pixel at a wide viewing angle, adjust the light output brightness ratio of the first and second sub-pixels, and after mixing into white light, it can improve the color cast problem at a wide viewing angle and improve the performance of the display panel.

[0024] In one possible implementation, the line width of the first touch trace is greater than the line width of the second touch trace.

[0025] This example demonstrates how to offset touch traces by increasing the line width.

[0026] In one possible implementation, the touch trace includes a first electrode line and a second electrode line. The first electrode line is disposed on the side of the plurality of pixel units away from the driving substrate, and the second electrode line is disposed on the side of the first electrode line away from the plurality of pixel units. A first floating ground metal trace is disposed on the same layer as the first electrode line and is disposed between the first electrode line and the first sub-pixel. Alternatively, the first floating ground metal trace is disposed on the same layer as the second electrode line and is disposed between the second electrode line and the first sub-pixel.

[0027] In other words, in some scenarios, the floating ground metal trace can be set on the same layer as the first electrode line; in other scenarios, the floating ground metal trace can be set on the same layer as the second electrode line.

[0028] In one possible implementation, at least two sub-pixels further include: a third sub-pixel; the touch trace includes a third touch trace located between the first sub-pixel and the third sub-pixel; the arrangement direction of the first sub-pixel and the second sub-pixel intersects with the arrangement direction of the first sub-pixel and the third sub-pixel; a second floating ground metal trace is disposed between the third touch trace and the second sub-pixel, and the second floating ground metal trace is electrically isolated from the third touch trace; the first floating ground metal trace and the second floating ground metal trace are disposed on the same layer.

[0029] When there are multiple floating metal traces, these floating metal traces can be arranged in the same layer, which facilitates manufacturing.

[0030] In one possible implementation, the first sub-pixel and the second sub-pixel are sub-pixels of different colors.

[0031] Secondly, this application provides a display panel that may include organic light-emitting diodes (OLEDs).

[0032] The display panel provided in this application includes: a driving substrate, multiple pixel units, and touch traces. The multiple pixel units are disposed on the driving substrate, and each pixel unit includes at least two sub-pixels, the at least two sub-pixels including a first sub-pixel and a second sub-pixel. The touch traces are disposed on the side of the multiple pixel units away from the driving substrate. The touch traces have a mesh structure and form multiple mesh holes. The mesh holes correspond one-to-one with the sub-pixels. The touch traces include a first touch trace.

[0033] Furthermore, there is an isolation groove between the first sub-pixel and the second sub-pixel; the first touch trace is located between the isolation groove and the first sub-pixel, or at least part of the first touch trace covers the isolation groove; the distance between the first touch trace and the second sub-pixel is not equal to the distance between the first touch trace and the first sub-pixel.

[0034] In the display panel provided in this application, since the distance between the first touch trace and the second sub-pixel is not equal to the distance between the first touch trace and the first sub-pixel, that is, the first touch trace is offset, the light output brightness of the first sub-pixel or the second sub-pixel at a wide viewing angle is reduced, the light output brightness ratio of the first sub-pixel and the second sub-pixel is adjusted, and after being mixed into white light, the color distortion problem can be improved at a wide viewing angle, thereby improving the performance of the display panel.

[0035] Furthermore, the first touch trace is located between the isolation groove and the second sub-pixel, or at least partially covers the isolation groove, which can reduce water ripples and further optimize the performance of the display panel.

[0036] In one possible implementation, the distance between the first touch trace and the second sub-pixel is less than the distance between the first touch trace and the first sub-pixel.

[0037] Since the distance between the first touch trace and the second sub-pixel is smaller than the distance between the first touch trace and the first sub-pixel, that is, the first touch trace is offset to the second sub-pixel, the light output brightness of the second sub-pixel is reduced at a wide viewing angle. By adjusting the light output brightness ratio of the first sub-pixel and the second sub-pixel and mixing them into white light, the color distortion problem can be improved at a wide viewing angle, thus enhancing the performance of the display panel.

[0038] In one possible implementation, the touch trace includes a second touch trace, and the first touch trace and the second touch trace are disposed on opposite sides of the second sub-pixel along a first direction, the first direction being parallel to the arrangement direction of the first sub-pixel and the second sub-pixel; the distance between the first touch trace and the second sub-pixel is not equal to the distance between the second touch trace and the second sub-pixel.

[0039] This can be understood as: the offset setting of some touch traces around the second sub-pixel, which can further change the light output brightness of the second sub-pixel under a wide viewing angle, adjust the light output brightness ratio of the first sub-pixel and the second sub-pixel, improve the color cast problem, and enhance the performance of the display panel.

[0040] In one possible implementation, the line width of the first touch trace is greater than the line width of the second touch trace.

[0041] This example demonstrates how to offset touch traces by increasing the line width.

[0042] In one possible implementation, a first floating ground metal trace is provided between the first touch trace and the first sub-pixel, and the first floating ground metal trace is electrically isolated from the first touch trace.

[0043] By setting a first floating metal trace, the light output brightness of the first sub-pixel can be adjusted at a wide viewing angle, thus improving color cast at a wide viewing angle.

[0044] In one possible implementation, the distance between the first touch trace and the second sub-pixel is not equal to the distance between the first floating metal trace and the first sub-pixel.

[0045] Thirdly, this application provides a display module, which includes a display driver integrated circuit and a display panel in any of the above implementations, wherein the display driver integrated circuit is electrically connected to the display panel.

[0046] The display module provided in this application includes a display panel as described in any of the above implementations, thereby improving the color distortion problem of the display module at wide viewing angles and optimizing the performance of the display module.

[0047] Fourthly, this application provides an electronic device, which includes a drive controller and a display module implemented as described above, wherein the drive controller is electrically connected to the display module.

[0048] The electronic device provided in this application, by including a display module in any of the above implementations, can improve the color distortion problem of the display module at a wide viewing angle and optimize the performance of the electronic device. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the structure of an electronic device as exemplified in this application; Figure 2 A schematic diagram illustrating the structure of another electronic device as an example of this application; Figure 3 This is a schematic diagram illustrating the field of view and azimuth angle in an electronic device as exemplified in this application; Figure 4 This is a partial structural schematic diagram of a display panel top view provided in an embodiment of this application; Figure 5 It is along Figure 4 The image shown is a cross-sectional view cut by section AA. Figure 6 This is a partial structural schematic diagram of a top view of another display panel provided in an embodiment of this application; Figure 7 It is along Figure 6 The image shown is a cross-sectional view of BB section; Figure 8 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 9 It is along Figure 6 Another cross-sectional view of the BB section shown; Figure 10 It is along Figure 6 Another cross-sectional view of BB section shown; Figure 11 It is along Figure 6 Another cross-sectional view of BB section shown; Figure 12 It is along Figure 4 Another cross-sectional view of section AA shown; Figure 13 It is along Figure 4 Another cross-sectional view of section AA shown; Figure 14 This is a partial structural schematic diagram of a top view of another display panel provided in an embodiment of this application; Figure 15 A view character offset trajectory diagram of a display panel provided in an embodiment of this application; Figure 16 A view character offset trajectory diagram of another display panel provided in an embodiment of this application; Figure 17 It is along Figure 4 Another cross-sectional view of section AA shown; Figure 18 It is along Figure 4 Another cross-sectional view of section AA shown; Figure 19 It is along Figure 4 Another cross-sectional view of section AA shown; Figure 20 It is along Figure 4 Another cross-sectional view of section AA shown; Figure 21 It is along Figure 4 Another cross-sectional view of section AA shown; Figure 22 This is a partial structural schematic diagram of a top view of another display panel provided in an embodiment of this application; Figure 23 It is along Figure 22 The image shown is a cross-sectional view of a CC section. Figure 24 This is a partial structural schematic diagram of a top view of another display panel provided in an embodiment of this application; Figure 25 It is along Figure 24 The image shows a cross-sectional view of a DD section. Figure 26 It is along Figure 24 Another cross-sectional view of the DD section shown; Figure 27 This is a partial structural schematic diagram of a top view of another display panel provided in an embodiment of this application; Figure 28A view character offset trajectory diagram of a display panel provided in an embodiment of this application; Figure 29 It is along Figure 24 Another cross-sectional view of the DD section shown; Figure 30 A view character offset trajectory diagram of a display panel provided in an embodiment of this application; Figure 31 A view character offset trajectory diagram of a display panel provided in an embodiment of this application; Figure 32 A view character offset trajectory diagram of a display panel provided in an embodiment of this application; Figure 33 This is a partial structural schematic diagram of a top view of another display panel provided in an embodiment of this application.

[0050] Figure label: 100a - First housing; 100b - Second housing; 100c - Third housing; 200 - Display module; 21 - First sub-pixel; 22 - Second sub-pixel; 23 - Third sub-pixel; 3-Touch trace; 31-First touch trace; 32-Second touch trace; 301-First electrode line; 302-Second electrode line; 4-First floating ground metal wiring; 5-Isolation trench; 201-Anode layer; 202-Light-emitting layer; 203-Cathode layer; 204-Hole injection layer and / or hole transport layer; 205-N-type charge generation layer; 206-P-type charge generation layer; 207-Electron injection layer and / or electron transport layer; 2021-First organic light-emitting layer; 2022-Second organic light-emitting layer. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0052] Hereinafter, the terms "second," "first," etc., are used for descriptive convenience only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "second," "first," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0053] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" may be defined relative to the orientation in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and can change accordingly based on the orientation of the components in the accompanying drawings.

[0054] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, the term "coupled connection" can be a direct electrical connection or an indirect electrical connection through an intermediate medium. The term "contact" can be direct contact or indirect contact through an intermediate medium.

[0055] In this embodiment of the application, "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0056] This application provides an electronic device, which may be, for example, a foldable electronic device. The electronic device may be, for example, a consumer electronics product, a home electronics product, an in-vehicle electronics product, or a financial electronics product. Consumer electronics products include mobile phones, tablets, laptops, e-readers, personal computers (PCs), personal digital assistants (PDAs), desktop monitors, smart wearable products (e.g., smartwatches, smart bracelets), virtual reality (VR) electronic devices, augmented reality (AR) electronic devices, drones, etc. Home electronics products include smart door locks, televisions, refrigerators, and small rechargeable household appliances (e.g., soymilk makers, robot vacuum cleaners), etc. In-vehicle electronics products include in-vehicle navigation systems, in-vehicle DVDs, etc. Financial electronics products include ATMs, self-service electronic devices, etc.

[0057] For ease of explanation, this application uses a mobile phone as an example of an electronic device for illustrative purposes.

[0058] Figure 1A structural diagram of a foldable screen phone is shown, and the example foldable screen phone is a three-screen foldable phone. The three-screen foldable screen phone may include a first housing 100a, a second housing 100b, and a third housing 100c, as well as a display module 200. The display module 200 may continuously cover the first housing 100a, the second housing 100b, and the third housing 100c. The foldable screen phone may also include a first hinge mechanism and a second hinge mechanism.

[0059] The first housing 100a and the second housing 100b are disposed on both sides of the first rotating shaft mechanism and are respectively connected to the first rotating shaft mechanism. The first rotating shaft mechanism can move so that the first housing 100a and the second housing 100b are folded or unfolded relative to each other, thereby realizing the flattening and closing of the display module 200 disposed on the first housing 100a and the second housing 100b.

[0060] The second housing 100b and the third housing 100c are disposed on both sides of the second rotating shaft mechanism and are respectively connected to the second rotating shaft mechanism. The second rotating shaft mechanism can move so that the second housing 100b and the third housing 100c are folded or unfolded relative to each other, thereby realizing the flattening and closing of the display module 200 disposed on the second housing 100b and the third housing 100c.

[0061] Figure 2 The diagram shows the structure of a dual-screen foldable phone, which includes a first housing 100a, a second housing 100b, a display module 200, and a hinge mechanism. The display module 200 can be mounted on the first housing 100a and the second housing 100b, which are located on either side of the hinge mechanism and connected to it. The display module 200 can be unfolded and closed by the hinge mechanism.

[0062] In other examples, electronic devices can have a candybar design, such as candybar mobile phones or candybar tablets.

[0063] In the case of a folding device, the folding direction of the electronic device 1 is not limited in the embodiments of this application. The electronic device 1 can be folded inward, outward, inward and outward, horizontal, or in various other ways.

[0064] In some embodiments of this application, the display module 200 includes, for example, a display panel and a display driver integrated circuit. The display driver integrated circuit serves as the control core of the display panel, driving the display panel to work and receiving data from the driver controller.

[0065] The display driver integrated circuit, for example, is coupled to the driver controller, receives signals output by the driver controller, and provides the scanning signals and data signals required for the display panel to emit light. The signals sent by the display driver integrated circuit will be explained in detail below in conjunction with the structure of the pixel circuit.

[0066] For example, the display driver integrated circuit receives data control signals and image data from the driver controller. The display driver integrated circuit converts the image data into data signals and outputs these data signals to multiple data signal lines. The data signals are analog voltages corresponding to the grayscale values ​​of the image data. The display driver integrated circuit is also used to output scan control signals such as clock signals, gate activation signals (STV), and reset signals required for display to the display panel. The display driver integrated circuit includes, for example, a display driver integrated circuit (DDIC).

[0067] The display panel, as a data presentation unit, is used to display and control data sent by the drive controller. Examples of display panels include organic light-emitting diode (OLED) display panels, active-matrix organic light-emitting diode (AMOLED) display panels, mini organic light-emitting diode (Mini-OLED) display panels, micro light-emitting diode (Micro-LED) display panels, micro organic light-emitting diode (Micro-OLED) display panels, quantum dot light-emitting diode (QLED) display panels, and other self-emissive display panels.

[0068] For any of the above-mentioned display panels, the display panel includes an active display area (AA) and a non-display area surrounding the active display area. The active display area is used to display images and includes multiple sub-pixels (SPs). Each sub-pixel contains a pixel circuit that receives data signals provided by the display driver integrated circuit. The non-display area includes a row driver circuit that receives scan control signals provided by the display driver integrated circuit.

[0069] Self-emissive display panels offer a wide viewing angle and high readability at angled viewing angles. However, in some wide-viewing-angle scenarios, color shift issues exist, such as yellowing, greening, or purplish tint. This application provides several implementation methods to improve this color shift phenomenon at wide viewing angles, as detailed below.

[0070] Before introducing the examples in this application, let's first introduce some technical terms in this field.

[0071] like Figure 3 As shown, Figure 3 The definitions of field of view and azimuth angle are shown. The viewing angle, i.e., 0°, can be defined as the angle perpendicular to the screen. Figure 3 In (1), when the viewing angle increases, there is a certain angle between the human eye and the screen. At this time, the light received is emitted from the screen at a certain angle, such as... Figure 3 The viewing angle α is shown. Due to the microcavity interference effect in RGB pixel light-emitting devices and the different spectral characteristics of RGB light-emitting materials, the brightness of RGB monochromatic light changes compared to the viewing angle of 0°, and the changes are inconsistent. This results in color cast phenomena at different viewing angles after mixing into white light, such as yellowing, greening, or purpleing. For example, color cast phenomena can be observed at the viewing angle α.

[0072] Color shift at different viewing angles can be characterized by testing the product's color coordinates at those angles. For example, from a viewing angle of 0° to 75°, a set of brightness and color coordinate data is tested every 5°. When the color coordinate data for all angles are plotted on the CIE 1976 color gamut diagram, a continuous color change curve is formed, which is named the viewing angle color shift trajectory. The color that the viewing angle color shift trajectory passes through corresponds to the color displayed at that angle. The landing point of the color shift trajectory at each angle is composed of the brightness and color coordinates of the RGB monochrome at that angle, and the mixing process follows the principle of color addition. Since the human eye receives brightness and color information simultaneously, the DE00 standard is usually used to accurately describe the human eye's perception of brightness and color at different angles.

[0073] like Figure 3 Besides observing the display screen from different viewing angles to discover differences in brightness and color, these differences can also be observed from different locations, for example... Figure 3 Azimuth angles 1, 2, 3, and 4. This results in differences in visual field deviation at different azimuth angles for the same field of view. This difference can be characterized by visual field deviation symmetry. It can be understood that: at the same field of view, the difference in visual field deviation contrast at different azimuth angles is characterized by color shift symmetry, such as... Figure 3 Difference in color cast at viewing angles (2) and (3) Therefore, accurately controlling the luminous brightness and luminous color at different angles can improve the viewing angle deviation effect of the product at different viewing angles.

[0074] The implementation method of this application is described below.

[0075] like Figure 4 and Figure 5 As shown, Figure 4 This is a partial structural schematic diagram of a display panel top view provided in an embodiment of this application. Figure 5 It is along Figure 4 The image shown is a cross-sectional view cut by section AA.

[0076] In this application example, the display panel includes a driving substrate 1 and a plurality of pixel units disposed on the driving substrate 1, for example, in Figure 4 The example shows a pixel unit, such as Figure 4 The pixel units shown can be arranged in an array on the driving substrate to form multiple repeating pixel units.

[0077] The driving substrate 1 may include, for example, a substrate and a pixel driving circuit disposed on the substrate. The structure of the driving substrate in some related technologies is applicable to the embodiments of this application.

[0078] See Figure 4 A pixel unit comprises at least two sub-pixels, for example, in Figure 4 In the example, there are a first sub-pixel 21, a second sub-pixel 22, and a third sub-pixel 23. The first sub-pixel 21 can be one of a blue sub-pixel, a green sub-pixel, or a red sub-pixel; the second sub-pixel 22 can be another of a blue sub-pixel, a green sub-pixel, or a red sub-pixel; and the third sub-pixel 23 can be yet another of a blue sub-pixel, a green sub-pixel, or a red sub-pixel.

[0079] Example, Figure 4 In the example, a pixel unit includes nine sub-pixels, where the first sub-pixel 21 can be a blue sub-pixel, the second sub-pixel 22 can be a green sub-pixel, and the third sub-pixel 23 can be a red sub-pixel. Figure 4 This is an example of the number of sub-pixels in a pixel unit and the arrangement of them; this application is not limited to this example.

[0080] See you later Figure 4 and Figure 5 The display panel in this example also includes touch traces 3, which are disposed on the side of the plurality of pixel units away from the driving substrate 1, see... Figure 4 The touch trace 3 has a mesh structure, forming multiple mesh holes, with each mesh hole corresponding to a sub-pixel.

[0081] The touch trace 3 has a mesh structure and forms multiple mesh holes. Each mesh hole corresponds to a sub-pixel. This can be understood as follows: the multiple mesh holes of the touch trace 3 are set one-to-one with the multiple sub-pixels. One mesh hole corresponds to one sub-pixel. The orthographic projection of the sub-pixel on the driving substrate 1 is located within the orthographic projection boundary of the mesh hole on the driving substrate 1.

[0082] like Figure 4 and Figure 5 As shown, the display panel also includes a first floating metal trace 4, which can be disposed in the same metal layer as the touch trace 3. The first floating metal trace is electrically isolated from the touch trace, and the first floating metal trace 4 can be disposed between two adjacent sub-pixels.

[0083] The electrical isolation between the first floating ground metal trace and the touch trace can be understood as follows: the first floating ground metal trace and the touch trace are insulated from each other and are not electrically connected. The touch trace can carry current, while the first floating ground metal trace does not carry current. This first floating ground metal trace can be called a floating ground metal network.

[0084] exist Figure 4 and Figure 5 In the example, the touch trace located between the first sub-pixel 21 and the second sub-pixel 22 can be referred to as the first touch trace 31, and a first floating metal trace 4 is provided between the first touch trace 31 and the first sub-pixel 21.

[0085] See Figure 5 The light emitted by the first sub-pixel 21 can be blocked by the first floating metal trace 4, reducing the brightness of the first sub-pixel 21 at an oblique viewing angle and changing the brightness attenuation value of the first sub-pixel 21 at a certain viewing angle. When the brightness of the first sub-pixel 21 decreases, the brightness ratio of the first sub-pixel 21 and the second sub-pixel 22 can change. After the light emitted by these different sub-pixels is mixed into white light, the color cast problem can be improved in wide viewing angle usage scenarios. For example, it can improve the cyan, green or purple color cast.

[0086] In some examples, such as Figure 5 As shown, the distance between the first touch trace 31, located between the first sub-pixel 21 and the second sub-pixel 22, and the second sub-pixel 22 is not equal to the distance between the first floating metal trace 4 and the first sub-pixel 21. For example, in this example, the distance between the first floating metal trace 4 and the first sub-pixel 21 is a1, and the distance between the first touch trace 31 and the second sub-pixel 22 is a2, where a1 is less than a2.

[0087] For example, when the first sub-pixel 21 is a blue sub-pixel and the second sub-pixel 22 is a green sub-pixel, the light output brightness of the blue sub-pixel is reduced due to the obstruction of the first floating ground metal trace 4. The light output brightness ratio of adjacent blue and green sub-pixels is adjusted, which can alleviate the problem of excessive blue color shift. For example, when the first sub-pixel 21 is a red sub-pixel and the second sub-pixel 22 is a green sub-pixel, the light output brightness of the red sub-pixel is reduced due to the obstruction of the first floating ground metal trace 4. The light output brightness ratio of the adjacent red and green sub-pixels is adjusted, which can alleviate the excessive yellowing phenomenon.

[0088] For example, when the first sub-pixel 21 is a green sub-pixel and the second sub-pixel 22 is a red sub-pixel, the light output brightness of the green sub-pixel is reduced due to the obstruction of the first floating ground metal trace 4. The light output brightness ratio of the adjacent green sub-pixels and red sub-pixels is adjusted, which can alleviate the phenomenon of excessive greening.

[0089] exist Figure 5 In one example, the distance a1 between the first floating metal trace 4 and the first sub-pixel 21 is less than the distance a2 between the first touch trace 31 and the second sub-pixel 22; in other examples, the distance a1 between the first floating metal trace 4 and the first sub-pixel 21 can be greater than the distance a2 between the first touch trace 31 and the second sub-pixel 22; and in yet another example, the distance a1 between the first floating metal trace 4 and the first sub-pixel 21 can be equal to the distance a2 between the first touch trace 31 and the second sub-pixel 22.

[0090] Based on the above, in the display panel of this application example, by setting the first floating metal trace 4 and the first touch trace 31, the light emission ratio between two adjacent sub-pixels can be adjusted, which can reduce the color shift phenomenon of bluish, purple or luminous emission under a large viewing angle, optimize the display effect of the display panel, and improve the user experience.

[0091] In some display panels, color distortion can be further optimized by adjusting the ratio of a1 to a2.

[0092] Figure 6 This is a partial structural schematic diagram of another display panel top view provided in an embodiment of this application. Figure 7 It is along Figure 6 Another cross-sectional view of BB section shown. Figure 7 An example of a subpixel implementation structure is provided.

[0093] exist Figure 6 and Figure 7In the example, each of the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 includes: an anode layer (AN) 201, a light-emitting layer 202, and a cathode layer (CA) 203 stacked along the thickness direction of the driving substrate 1. The light-emitting layer 202 is disposed between the anode layer 201 and the cathode layer 203. The anode layer 201 is closer to the driving substrate than the cathode layer 203. It can be understood that the anode layer 201, the light-emitting layer 202, and the cathode layer 203 are stacked sequentially along the direction away from the driving substrate 1.

[0094] In other examples, such as Figure 8 As shown, each of the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 may include: an anode (AN) 201, a hole inject layer (HIL) 204 and / or a hole transport layer (HTL) 204, a first organic light-emitting layer (EL1) 2021, an N-type charge generation layer (N-CGL) 205, a P-type charge generation layer (P-CGL) 206, a second organic light-emitting layer (EL2) 2022, an electron transport layer (ETL) 207 and / or an electron injection layer (EIL) 207, and a cathode layer (CA) 203, and these film structures are stacked sequentially along the direction away from the driving substrate.

[0095] In some structures, the charge generation layers (CGLs) of multiple sub-pixels are connected together, meaning that multiple sub-pixels share the same charge generation layer (CGL). This results in very strong conductivity. In some cases, when a sub-pixel of a certain color is lit, sub-pixels of other colors around it are lit through lateral current, which worsens the low grayscale crosstalk problem.

[0096] In some examples, to address crosstalk, the shared charge generation layer (CGL) can be isolated to prevent the propagation of lateral current, thus improving crosstalk. For example... Figure 9 As shown, there is an isolation trench 5 between the charge generation layer 208 between two adjacent sub-pixels, and there is an isolation trench 5 between the cathode layer 203 between two adjacent sub-pixels, or, in Figure 7 In the example, the cathode layer 203 fractures, forming an isolation groove 5.

[0097] To further improve device performance, such as reducing coupling with the backplane metal lines, the touch traces need to have a cathode layer between them to provide shielding and improve the touch ripple effect. The first touch trace 31 can be staggered from the isolation groove 5, and the first floating ground metal trace 4 can be staggered from the isolation groove 5. This can be understood as: the isolation groove 5 is located between the first touch trace 31 and the first floating ground metal trace 4.

[0098] The first touch trace 31 is offset from the isolation groove 5. This can be understood as: the first touch trace 31 cannot cover the isolation groove, or the orthographic projection of the first touch trace 31 on the driving substrate 1 and the orthographic projection of the isolation groove 5 on the driving substrate 1 cannot overlap. For example, they can be offset by more than or equal to 1μm.

[0099] The first floating ground metal trace 4 and the isolation groove 5 are staggered. This can be understood as: the first floating ground metal trace 4 cannot cover the isolation groove, or the orthographic projection of the first floating ground metal trace 4 on the driving substrate 1 and the orthographic projection of the isolation groove 5 on the driving substrate 1 cannot overlap. For example, they can be staggered by more than or equal to 1μm.

[0100] Figure 10 It is along Figure 6 Another cross-sectional view of the BB section shown.

[0101] In this example, the first touch trace 31 can be offset from the isolation groove 5, and the first floating metal trace 4 can cover at least a portion of the isolation groove 5.

[0102] exist Figure 10 In the example, since the first floating ground metal trace 4 is a dummy trace without current, and the first floating ground metal trace 4 covers at least part of the isolation groove 5, the touch ripple of the device can also be reduced.

[0103] Figure 11 It is along Figure 6 The diagram shows another cross-sectional view of BB section.

[0104] In this example, the first touch trace 31 can cover at least a portion of the isolation groove 5, and the first floating metal trace 4 can cover at least a portion of the isolation groove 5.

[0105] exist Figure 11 In the example, the first touch trace 31 includes a first portion 31A covering the isolation groove 5, and the first floating metal trace 4 includes a second portion 4A covering the isolation groove 5. The first portions 31A are spaced apart, which can be understood as: the first portion 31A and the second portion 4A do not completely cover the isolation groove 5.

[0106] In some examples, the line width of the first part 31A can be smaller than the line width of the second part 4A. This will not significantly affect the reduction in the touch ripple effect.

[0107] Figure 7 , Figure 9 , Figure 10 and Figure 11 In the example, not only can touch ripples be reduced, but also color shift phenomena such as bluish, purple or luminous appearance at wide viewing angles can be reduced, resulting in better performance of the display panel.

[0108] In some display panels, such as Figure 12 As shown, Figure 12 It is along Figure 4 Another cross-sectional view shown is the AA section.

[0109] In this example, the first touch trace 31, located between the first sub-pixel 21 and the second sub-pixel 22, is centrally positioned. Specifically, the first sub-pixel 21 has a first end face near the first touch trace 31, the first touch trace 31 has a second end face near the first sub-pixel 21, and the distance between the first and second end faces is a3. The second sub-pixel 22 has a third end face near the first touch trace 31, and the first touch trace 31 has a fourth end face near the second sub-pixel 22, with the distance between the third and fourth end faces also being a3. A first floating metal trace 4 is positioned between the first touch trace 31 and the first sub-pixel 21.

[0110] In other display panels, such as Figure 13 As shown, Figure 13 It is along Figure 4 Another cross-sectional view shown is the AA section.

[0111] In this example, the first touch trace 31, located between the first sub-pixel 21 and the second sub-pixel 22, is offset. This can be understood as follows: the first sub-pixel 21 has a first end face close to the first touch trace 31, the first touch trace 31 has a second end face close to the first sub-pixel 21, and the distance between the first and second end faces is a4. The second sub-pixel 22 has a third end face close to the first touch trace 31, and the first touch trace 31 has a fourth end face close to the second sub-pixel 22, and the distance between the third and fourth end faces is a5. Since a5 is less than a4, the first touch trace 31 is offset from the second sub-pixel 22. The first floating metal trace 4 is positioned between the first touch trace 31 and the first sub-pixel 21.

[0112] exist Figure 13The example combines two structures: one is setting the first floating metal trace 4, and the other is setting the offset of the first touch trace 31. By setting the first floating metal trace 4, the light output brightness of the first sub-pixel 21 under a wide viewing angle is improved. By setting the offset of the first touch trace 31, the light output brightness of the second sub-pixel 22 under a wide viewing angle is improved. This can further improve the light output ratio of the two different sub-pixels, adjust the color shift problem under a wide viewing angle, and further optimize the color shift phenomenon of bluish, purple or luminous color shift.

[0113] In some display panels, color distortion can be optimized by adjusting the ratio of a4 to a5.

[0114] exist Figure 12 and Figure 13 In the example, there may also be an isolation groove located between the first touch trace 31 and the first floating ground metal trace 4, or the first touch trace 31 covers part of the isolation groove; or the first floating ground metal trace 4 covers part of the isolation groove.

[0115] Figure 14 This is a partial structural schematic diagram of another display panel top view provided in an embodiment of this application.

[0116] In this example, there is a first floating ground metal trace 4 between two adjacent different sub-pixels, and a touch trace offset setting between the two different sub-pixels. For example, the spacing between one sub-pixel and the touch trace is c1, and the spacing between the other sub-pixel and the touch trace is c2, where c1 is less than c2.

[0117] Figure 15 This is an example of this application. Figure 14 Remove the view character offset trajectory map of the first floating ground metal line 4 from the structure. Figure 16 This is an example of this application. Figure 14 View-role trajectory diagram of the structure.

[0118] exist Figure 15 and Figure 16 In the diagram, "base" indicates a view character's offset trajectory without touch trace bias, "TP offset" indicates a view character's offset trajectory with touch trace bias, "TP offset + dummy wrap" indicates a touch trace bias, and "TP offset + dummy wrap" indicates a view character's offset trajectory with floating metal trace.

[0119] like Figure 15 and Figure 16 To address the yellowing issue of dual-layer light-emitting devices at wide viewing angles, and to avoid touch-sensitive ripples, the TP metal line between the R and G pixels can only be slightly shifted towards the R pixel. This reduces the oblique angle of red light emission, but the improvement in color shift trajectory is not significant. For example... Figure 15Adding dummy traces around the R pixel, and shifting the TP metal line between the R and G pixels towards the G pixel, can simultaneously reduce the angled light output of the RG pixel, significantly improving the character's perspective when viewed from a large angle. For example... Figure 16 .

[0120] like Figure 17 As shown, Figure 17 It is along Figure 4 Another cross-sectional view shown is the AA section.

[0121] In this example, the line width b2 of the first touch trace 31 located between the first sub-pixel 21 and the second sub-pixel 22 is greater than the line width b1 of the first floating metal trace 4.

[0122] The line width in this application example can be understood as: the size of the trace in the direction perpendicular to the direction of trace extension.

[0123] exist Figure 17 In the example, since the line width of the first touch trace 31 is greater than the line width of the first floating ground metal trace 4, the impedance of the first touch trace 31 can be reduced, thereby improving the performance of the display panel.

[0124] exist Figure 17 In the example, the first touch trace 31 can be either the offset setting shown above or the center setting shown above.

[0125] exist Figure 17 In the example, there may also be an isolation groove located between the first touch trace 31 and the first floating ground metal trace 4; or, the first touch trace 31 covers part of the isolation groove; or, the first floating ground metal trace 4 covers part of the isolation groove.

[0126] like Figure 18 As shown, Figure 18 It is along Figure 4 Another cross-sectional view shown is the AA section.

[0127] In this example, the line width b2 of the first touch trace 31 located between the first sub-pixel 21 and the second sub-pixel 22 is smaller than the line width b1 of the first floating metal trace 4.

[0128] In some process structures, when the linewidth b1 of the first floating metal trace 4 is large, the flatness of the end face of the first floating metal trace 4 can be improved. When light is projected onto the end face with higher flatness, the probability of scattering will be reduced, thereby improving the light output effect.

[0129] exist Figure 18 In the example, the first touch trace 31 can be either the offset setting shown above or the center setting shown above.

[0130] exist Figure 18 In the example, there may also be an isolation groove located between the first touch trace 31 and the first floating ground metal trace 4; or, the first touch trace 31 covers part of the isolation groove; or, the first floating ground metal trace 4 covers part of the isolation groove.

[0131] like Figure 19 As shown, Figure 19 It is along Figure 4 Another cross-sectional view shown is the AA section.

[0132] In this example, the touch trace 3 includes a first electrode line 301 and a second electrode line 302. The first electrode line 301 is disposed on the side of the plurality of pixel units away from the driving substrate 1, and the second electrode line 302 is disposed on the side of the first electrode line 301 away from the plurality of pixel units.

[0133] The first electrode line 301 and the second electrode line 302 can be arranged relative to each other. This can be understood as follows: the orthographic projection of the first electrode line 301 on the driving substrate basically coincides with the orthographic projection of the second electrode line 302 on the driving substrate.

[0134] See Figure 19 The first floating ground metal trace 4 can be disposed on the same layer as the first electrode line 301, and the first floating ground metal trace 4 is disposed between the first electrode line 301 and the first sub-pixel 21. That is to say, the first floating ground metal trace 4 and the first electrode line 301 are located on the same metal layer.

[0135] In some optional processes, the first floating metal trace 4 can be fabricated during the fabrication of the first electrode line 301.

[0136] like Figure 20 As shown, Figure 20 It is along Figure 4 Another cross-sectional view shown is the AA section.

[0137] In this example, the first floating ground metal trace 4 can be disposed on the same layer as the second electrode line 302, and the first floating ground metal trace 4 is disposed between the second electrode line 302 and the first sub-pixel 21. That is to say, the first floating ground metal trace 4 and the second electrode line 302 are located on the same metal layer.

[0138] In some alternative processes, the first floating ground metal trace 4 can be fabricated while the second electrode line 302 is being prepared.

[0139] like Figure 21 As shown, Figure 21 It is along Figure 4 Another cross-sectional view shown is the AA section.

[0140] In this example, the touch trace 3 includes a second touch trace 32. The first touch trace 31 and the second touch trace 32 are arranged on opposite sides of the second sub-pixel 32 along a first direction, which is parallel to the arrangement direction of the first sub-pixel 21 and the second sub-pixel 22. For example, the first sub-pixel 21 and the second sub-pixel 22 are arranged along the X direction, where the first direction is the X direction.

[0141] The distance between the first touch trace 31 and the second sub-pixel 22 is not equal to the distance between the second touch trace 32 and the second sub-pixel 22. For example, in Figure 21 In this case, the distance a2 between the first touch line 31 and the second sub-pixel 22 is smaller than the distance a3 between the second touch line 32 and the second sub-pixel 22. This allows the brightness of the second sub-pixel 22 under a wide viewing angle to be changed.

[0142] See Figure 21 The distance between the end face of the first touch trace 31 furthest from the second sub-pixel 22 and the second sub-pixel 22 is equal to the distance between the end face of the second touch trace 32 furthest from the second sub-pixel 22 and the second sub-pixel 22. The linewidth of the first touch trace 31 is greater than the linewidth of the second touch trace 32. In other words, by increasing the linewidth of the first touch trace 31, the distance between it and the sub-pixel can be changed, thereby adjusting the light output brightness at a wide viewing angle.

[0143] In some scenarios, such as when the distance between the first and second sub-pixels is greater than or equal to 14μm, the offset of the large view character can be adjusted by using touch trace offset.

[0144] In some other scenarios, such as when the distance between the first and second sub-pixels is less than or equal to 17μm, the touch traces can be widened to adjust the large-view character offset.

[0145] Figure 22 This is a partial structural schematic diagram of another display panel top view provided in an embodiment of this application. Figure 2 It is along Figure 22 The image shown is a cross-sectional view of a CC section.

[0146] The display panel provided in this example includes a first floating metal trace 4 and a second floating metal trace 6. The first floating metal trace 4 is disposed around the periphery of a sub-pixel, and the second floating metal trace 6 is disposed around the periphery of a sub-pixel. For example, the first floating metal trace 4 and the second floating metal trace 6 are disposed around the same sub-pixel, or the first floating metal trace 4 and the second floating metal trace 6 are disposed around different sub-pixels. Figure 22In the example, the first floating metal trace 4 is disposed around the first sub-pixel 21 to adjust the light output brightness of the first sub-pixel 21, and the second floating metal trace 6 is disposed around the second sub-pixel 22 to adjust the light output brightness of the second sub-pixel 21.

[0147] When the display panel includes multiple floating metal traces, these traces can be located on the same layer, or some of them can be located on the same layer while others are located on a different layer. For example, see... Figure 23 As shown, the first floating ground metal trace 4 and the second floating ground metal trace 6 are located on the same layer, and are also on the same layer as the second electrode line 302. Alternatively, the first floating ground metal trace 4 can be on the same layer as the first electrode line 301, and the second floating ground metal trace 6 can be on the same layer as the second electrode line 302.

[0148] Figure 24 This is a partial structural schematic diagram of another display panel top view provided in an embodiment of this application. Figure 25 It is along Figure 24 The image shown is a cross-sectional view of DD section. Figure 26 It is along Figure 24 Another cross-sectional view of the DD section shown.

[0149] like Figure 25 and Figure 26 The display panel includes a driving substrate 1 and multiple pixel units disposed on the driving substrate 1. Each pixel unit includes a first sub-pixel 21, a second sub-pixel 22, and a third sub-pixel 23. It also includes touch traces 3, which are disposed on the side of the multiple pixel units away from the driving substrate 1. The touch traces 3 have a mesh structure with multiple mesh holes, each mesh hole corresponding to a sub-pixel.

[0150] Each of the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 includes: an anode layer (AN) 201, a light-emitting layer 202, and a cathode layer (CA) 203 stacked along the thickness direction of the driving substrate 1, with the light-emitting layer 202 disposed between the anode layer 201 and the cathode layer 203. The cathode layer 203 between two adjacent sub-pixels breaks to form an isolation groove 5.

[0151] Or, in other examples, as described above Figure 8As shown, each of the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 may include: an anode (AN) layer 201, a hole inject layer (HIL) 204 and / or a hole transport layer (HTL) 204, a first organic light-emitting layer (EL1) 2021, an N-type charge generation layer (N-CGL) 205, a P-type charge generation layer (P-CGL) 206, a second organic light-emitting layer (EL2) 2022, an electron transport layer (ETL) 207 and / or an electron injection layer (EIL) 207, and a cathode layer (CA) 203. These film structures are stacked sequentially along the direction away from the driving substrate. The cathode layer 203 between two adjacent sub-pixels is broken to form an isolation trench, and there are also isolation trenches between the charge generation layers.

[0152] The touch trace 3 includes a first touch trace 31, which can be disposed between adjacent first sub-pixels 21 and second sub-pixels 22. The first touch trace 31 is located between the isolation groove 5 and the first sub-pixel 21, or at least part of the first touch trace 31 covers the isolation groove 5.

[0153] In some examples, such as Figure 25 The first touch trace 31 partially covers the isolation groove 5. In other examples, such as... Figure 26 The first touch trace 31 does not cover the isolation groove 5. For example, the first touch trace 31 is offset from the isolation groove 5 by more than or equal to 1 μm.

[0154] Continue to refer to Figure 25 and Figure 26 The first touch trace 31 located between the first sub-pixel 21 and the second sub-pixel 22 is offset, that is, the distance between the first touch trace and the second sub-pixel is not equal to the distance between the first touch trace and the first sub-pixel.

[0155] In some examples, it can be understood that: the light-emitting layer 202 of the first sub-pixel 21 has a first end face close to the first touch trace 31, the first touch trace 31 has a second end face close to the first sub-pixel 21, and the distance between the first end face and the second end face is S1; the light-emitting layer 202 of the second sub-pixel 22 has a third end face close to the first touch trace 31, the first touch trace 31 has a fourth end face close to the second sub-pixel 22, and the distance between the third end face and the fourth end face is S2; S1 and S2 are not equal.

[0156] For example, in Figure 25 and Figure 26 In the first case, S1 is greater than S2, meaning the first touch trace 31 is offset from the second sub-pixel 22. Conversely, if S1 is less than S2, it means the first touch trace 31 is offset from the first sub-pixel 21.

[0157] exist Figure 24 , Figure 25 and Figure 26 In the example, the first touch trace 31 located between the first sub-pixel 21 and the second sub-pixel 22 is offset. This allows the brightness attenuation value of the first sub-pixel 21 or the second sub-pixel 22 at a certain viewing angle to be changed. For example, when the first touch trace 31 is biased towards the first sub-pixel 21, the brightness of the light emitted from the first sub-pixel 21 at an oblique viewing angle is reduced. When the brightness of the light emitted by the first sub-pixel 21 decreases, the brightness ratio of the light emitted by the first sub-pixel 21 and the second sub-pixel 22 can change. After the light emitted by these different sub-pixels is mixed into white light, the color cast problem can be improved in wide viewing angle usage scenarios. For example, it can improve the cyan, green or purple color cast.

[0158] Furthermore, since the first touch trace 31 is located between the isolation groove 5 and the first sub-pixel 21, or at least a portion of the first touch trace 31 covers the isolation groove 5, touch ripples can be reduced. Therefore, Figure 25 and Figure 26 For example, it can not only reduce touch ripples, but also reduce color shift phenomena such as bluish, purple or luminous appearance at large viewing angles, making the display panel perform better.

[0159] Figure 27 This is a partial structural schematic diagram of another display panel top view provided in an embodiment of this application.

[0160] This example shows that the first sub-pixel is blue, the second sub-pixel is green, and the third sub-pixel is red.

[0161] Between adjacent green and blue sub-pixels, the spacing between touch trace 3 and the green sub-pixel is e1, and the spacing between touch trace 3 and the blue sub-pixel is e2. Between adjacent green and red sub-pixels, the spacing between touch trace 3 and the green sub-pixel is e3, and the spacing between touch trace 3 and the red sub-pixel is e4.

[0162] Table 1 below provides examples of various touch trace offsets, and Table 2 shows the impact of various touch trace offsets in Table 1 on the brightness ratio.

[0163]

[0164] Table 1

[0165] Table 2 Referring to the data in Table 2, it can be seen that the touch trace offset has a significant impact on the brightness ratio value at viewing angles greater than 60°, such as 60° and 75°. For example, in Example 1 of Table 2, the brightness ratio at a viewing angle of 45° is 40.2%, but when the viewing angle is 60° and 75°, the brightness ratio drops to 17.8% and 8.8%, respectively. Similarly, in Example 2, the brightness ratio at a viewing angle of 45° is 39.6%, but when the viewing angle is 60° and 75°, the brightness ratio drops to 20.2% and 10.2%, respectively. In Example 3, the brightness ratio at a viewing angle of 45° is 41.9%, but when the viewing angle is 60° and 75°, the brightness ratio drops to 21.4% and 11.5%, respectively.

[0166] Therefore, in this application example, by setting the touch trace offset, the light output brightness under a wide viewing angle can be improved, and the color distortion problem under a wide viewing angle can be improved.

[0167] Taking e1 and e3 from Examples 1 and 2 as examples, the touch traces in Example 1 are closer to the green sub-pixels than those in Example 2. This results in a greater luminance attenuation over a wider viewing angle. For instance, the luminance at a 60° viewing angle in Example 1 is 17.8%, while in Example 2 it is 20.2%, with 17.8% being less than 20.2%. Similarly, the luminance at a 75° viewing angle in Example 1 is 8.8%, while in Example 2 it is 10.2%, with 8.8% being less than 10.2%.

[0168] Taking e1 and e3 from Examples 2 and 3 as examples again, the touch traces in Example 2 are closer to the green sub-pixels than those in Example 3. This results in a greater luminance attenuation over a wider viewing angle. For instance, the luminance at a 60° viewing angle in Example 2 is 20.2%, while in Example 3 it is 21.4%, with 20.2% being less than 21.4%. Furthermore, the luminance at a 75° viewing angle in Example 2 is 10.2%, while in Example 3 it is 11.2% over a 5° viewing angle, with 10.2% being less than 11.5%.

[0169] This can be understood as follows: the closer the touch trace is to the sub-pixel, the greater the proportion of brightness attenuation of the sub-pixel, and the lower the proportion of remaining brightness.

[0170] Combining Examples 1, 2, and 3, we can see that the color shift direction from different viewing angles can be adjusted by changing the distance from the touch trace to the sub-pixel, i.e., by adjusting the offset distance of the touch trace. In other words, the distance from the touch trace to the sub-pixel affects the brightness attenuation of the RGB pixel, and ultimately affects the color shift trajectory of the mixed white light and the degree of color shift perceptible to the human eye.

[0171] Figure 28 These are the view character offset trajectory diagrams of Examples 1, 2, and 3 given in the embodiments of this application. Wherein, 1 indicates the view character offset trajectory of Example 1, 2 indicates the view character offset trajectory of Example 2, and 3 indicates the view character offset trajectory of Example 3.

[0172] Figure 28 It can be seen that the change in the RGB monochrome brightness ratio causes the view of the character to change after mixing white light, thus controlling the color direction of the view of the character's trajectory; for example, since the touch trace in Example 1 is the closest to the green sub-pixel, the mixed white light trajectory moves to the lower right in the color space, adjusting the color cast effect.

[0173] like Figure 29 As shown, Figure 29 It is along Figure 24 Another cross-sectional view of the DD section shown.

[0174] In this example, the touch trace 3 includes a second touch trace 32. The first touch trace 31 and the second touch trace 32 are arranged on opposite sides of the second sub-pixel 32 along a first direction, which is parallel to the arrangement direction of the first sub-pixel 21 and the second sub-pixel 22. For example, the first sub-pixel 21 and the second sub-pixel 22 are arranged along the X direction, where the first direction is the X direction.

[0175] The distance between the first touch trace 31 and the second sub-pixel 22 is not equal to the distance between the second touch trace 32 and the second sub-pixel 22. For example, in Figure 26 In this case, the distance s2 between the first touch trace 31 and the light-emitting layer 202 of the second sub-pixel 22 is less than the distance s3 between the second touch trace 32 and the light-emitting layer 202 of the second sub-pixel 22. This allows the light output brightness of the second sub-pixel 22 at an oblique angle to be changed, for example, the light output brightness at a viewing angle greater than 60°.

[0176] See Figure 29 The distance between the end face of the first touch trace 31 furthest from the second sub-pixel 22 and the light-emitting layer 202 of the second sub-pixel 22 is equal to the distance between the end face of the second touch trace 32 furthest from the second sub-pixel 22 and the light-emitting layer 202 of the second sub-pixel 22. The linewidth of the first touch trace 31 is greater than the linewidth of the second touch trace 32. In other words, the brightness can be adjusted by increasing the linewidth of the first touch trace 31 and changing the distance between it and the sub-pixel.

[0177] Figure 30 The provided diagrams show the view character offset trajectories for both non-widened and widened touch traces. Specifically, -V- indicates the view character offset trajectory with non-widened touch traces, and V- indicates the view character offset trajectory with widened touch traces.

[0178] Depend on Figure 30 It can be seen that by widening the touch traces, the change in the RGB monochrome brightness ratio can cause a change in the trajectory of the character after mixing with white light, thus allowing control over the color direction of the character's trajectory. For example, in Figure 28 In the middle, the second sub-pixel is the green sub-pixel, which is achieved by increasing the width of the first touch trace, such as... Figure 30 It can improve the bluish tint effect when viewed from a wide angle.

[0179] In addition, the asymmetrical setting of the touch trace width around the sub-pixel can also improve the symmetry of the view character.

[0180] For example, by adjusting the line width of the touch traces around a sub-pixel, the distance between the touch trace and the sub-pixel can be unequal in different directions. This achieves unequal distances from the touch trace to the four directions of the same sub-pixel, thereby directionally controlling the brightness ratio in a certain direction at large angles. For instance, adjusting the line width of the touch traces around a green sub-pixel, widening the touch trace in the negative X direction and narrowing it in the positive X direction, results in a smaller distance from the green sub-pixel to the touch trace in the negative X direction and a larger distance in the positive X direction. Consequently, the brightness ratio in the negative X direction is lower, and the brightness ratio in the positive X direction is higher. After mixing with white light, the difference in trajectory between the negative and positive X directions is reduced, improving the symmetry of the viewfinder.

[0181] Figure 31 The diagrams shown are the view character offset trajectories for touch traces that are inward and outward, which can be understood as view character offset trajectories for touch traces offset by different distances. Figure 32 The diagram provided is a view character offset trajectory diagram with optimized touch trace width, which can also be understood as view character offset trajectory diagrams with two different trace widths.

[0182] like Figure 31 and Figure 32 When the touch trace offset and touch trace width are increased, the character bias symmetry is optimized from 1.5 JNCD to 0.5 JNCD.

[0183] In some embodiments, it is possible to Figure 25 or Figure 26 Based on the example, add floating metal routing, such as... Figure 33 As shown, Figure 33 This is a partial structural schematic diagram of a top view of another display panel provided in an embodiment of this application. In this example, a first floating ground metal trace 5 is provided between the first touch trace 31 and the first sub-pixel 21, and the first floating ground metal trace 5 is electrically isolated from the first touch trace 31.

[0184] In some structures, the distance between the first touch trace 31 and the second sub-pixel 22 is not equal to the distance between the first floating ground metal trace 5 and the first sub-pixel 21. For example, the distance between the first touch trace 31 and the second sub-pixel 22 is less than the distance between the first floating ground metal trace 5 and the first sub-pixel 21.

[0185] By setting up floating metal traces, the brightness of the first sub-pixel can be adjusted, which can further adjust the color cast problem from a wide viewing angle and optimize the symmetry of the view of the character.

[0186] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0187] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A display panel, characterized in that, include: Drive substrate; Multiple pixel units are disposed on the driving substrate, and each pixel unit includes at least two sub-pixels, the at least two sub-pixels including a first sub-pixel and a second sub-pixel; The touch traces are disposed on the side of the plurality of pixel units away from the driving substrate. The touch traces have a mesh structure and form a plurality of mesh holes, each mesh hole corresponding to a sub-pixel. The touch traces include a first touch trace located between the first sub-pixel and the second sub-pixel. A first floating ground metal trace is provided between the first touch trace and the first sub-pixel, and the first floating ground metal trace is electrically isolated from the first touch trace.

2. The display panel according to claim 1, characterized in that, The distance between the first touch trace and the second sub-pixel is not equal to the distance between the first floating metal trace and the first sub-pixel.

3. The display panel according to claim 1 or 2, characterized in that, The distance between the first touch trace and the second sub-pixel is less than the distance between the first touch trace and the first sub-pixel.

4. The display panel according to any one of claims 1-3, characterized in that, The linewidth of the first touch trace is greater than the linewidth of the first floating ground metal trace, or the linewidth of the first touch trace is equal to the linewidth of the first floating ground metal trace.

5. The display panel according to any one of claims 1-4, characterized in that, The touch trace also includes a second touch trace. The first touch trace and the second touch trace are respectively disposed on opposite sides of the second sub-pixel along a first direction, and the first direction is parallel to the arrangement direction of the first sub-pixel and the second sub-pixel. The distance between the first touch trace and the second sub-pixel is not equal to the distance between the second touch trace and the second sub-pixel.

6. The display panel according to claim 5, characterized in that, The line width of the first touch trace is greater than the line width of the second touch trace.

7. The display panel according to any one of claims 1-6, characterized in that, The touch traces include a first electrode line and a second electrode line. The first electrode line is disposed on the side of the plurality of pixel units away from the driving substrate, and the second electrode line is disposed on the side of the first electrode line away from the plurality of pixel units. The first floating ground metal trace is disposed on the same layer as the first electrode line, and the first floating ground metal trace is disposed between the first electrode line and the first sub-pixel, or; The first floating ground metal trace is disposed on the same layer as the second electrode line, and the first floating ground metal trace is disposed between the second electrode line and the first sub-pixel.

8. The display panel according to claim 7, characterized in that, The at least two sub-pixels also include: a third sub-pixel; The touch trace also includes a third touch trace located between the first sub-pixel and the third sub-pixel; The arrangement direction of the first sub-pixel and the second sub-pixel intersects with the arrangement direction of the first sub-pixel and the third sub-pixel; A second floating ground metal trace is provided between the third touch trace and the second sub-pixel, and the second floating ground metal trace is electrically isolated from the third touch trace; The first floating ground metal trace and the second floating ground metal trace are arranged on the same layer.

9. The display panel according to any one of claims 1-8, characterized in that, An isolation slot is provided between the first sub-pixel and the second sub-pixel; The isolation groove is located between the first touch trace and the first floating ground metal trace, or at least part of the first floating ground metal trace covers the isolation groove.

10. The display panel according to claim 9, characterized in that, Each of the sub-pixels further includes: an anode layer, a first organic light-emitting layer, a charge-generating layer, a second organic light-emitting layer, and a cathode layer, which are stacked sequentially along a direction away from the driving substrate; The isolation groove is located between the charge generation layer of the first sub-pixel and the charge generation layer of the second sub-pixel.

11. The display panel according to any one of claims 1-10, characterized in that, The first sub-pixel and the second sub-pixel are sub-pixels of different colors.

12. A display panel, characterized in that, include: Drive substrate; Multiple pixel units are disposed on the driving substrate, and each pixel unit includes at least two sub-pixels, the at least two sub-pixels including a first sub-pixel and a second sub-pixel; The touch traces are disposed on the side of the plurality of pixel units away from the driving substrate. The touch traces have a mesh structure and form a plurality of mesh holes, each mesh hole corresponding to a sub-pixel. The touch traces include a first touch trace. An isolation slot is provided between the first sub-pixel and the second sub-pixel; The first touch trace is located between the isolation groove and the second sub-pixel, or the first touch trace at least partially covers the isolation groove; The distance between the first touch trace and the second sub-pixel is not equal to the distance between the first touch trace and the first sub-pixel.

13. The display panel according to claim 12, characterized in that, The distance between the first touch trace and the second sub-pixel is less than the distance between the first touch trace and the first sub-pixel.

14. The display panel according to claim 12 or 13, characterized in that, The touch trace also includes a second touch trace. The first touch trace and the second touch trace are disposed on opposite sides of the second sub-pixel along a first direction, and the first direction is parallel to the arrangement direction of the first sub-pixel and the second sub-pixel. The distance between the first touch trace and the second sub-pixel is not equal to the distance between the second touch trace and the second sub-pixel.

15. The display panel according to claim 14, characterized in that, The line width of the first touch trace is greater than the line width of the second touch trace.

16. The display panel according to any one of claims 12-15, characterized in that, A first floating ground metal trace is provided between the first touch trace and the first sub-pixel, and the first floating ground metal trace is electrically isolated from the first touch trace.

17. The display panel according to claim 16, characterized in that, The distance between the first touch trace and the second sub-pixel is not equal to the distance between the first floating metal trace and the first sub-pixel.

18. A display module, characterized in that, It includes a display driver integrated circuit and a display panel as described in any one of claims 1-17, wherein the display driver integrated circuit is electrically connected to the display panel.

19. An electronic device, characterized in that, It includes a drive controller and a display module as described in claim 18, wherein the drive controller is electrically connected to the display module.

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