WO2025246723A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置

Info

Publication number
WO2025246723A1
WO2025246723A1 PCT/CN2025/090042 CN2025090042W WO2025246723A1 WO 2025246723 A1 WO2025246723 A1 WO 2025246723A1 CN 2025090042 W CN2025090042 W CN 2025090042W WO 2025246723 A1 WO2025246723 A1 WO 2025246723A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
conductive
display panel
conductive layer
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/090042
Other languages
English (en)
French (fr)
Inventor
许传志
张婷婷
张九占
胡思明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Govisionox Optoelectronics Co Ltd
Original Assignee
Kunshan Govisionox Optoelectronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunshan Govisionox Optoelectronics Co Ltd filed Critical Kunshan Govisionox Optoelectronics Co Ltd
Publication of WO2025246723A1 publication Critical patent/WO2025246723A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/123—Connection of the pixel electrodes to the thin film transistors [TFT]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H10K59/1315—Interconnections, e.g. wiring lines or terminals comprising structures specially adapted for lowering the resistance

Definitions

  • This application relates to the field of display technology, such as display panels and display devices.
  • OLED Organic light-emitting diode
  • advantages such as active light emission, wide viewing angle, wide color gamut, high brightness, fast response speed, low power consumption, and flexible structure, and are becoming increasingly popular in the market.
  • This application provides a display panel and a display device to improve display defects and touch defects, thereby enhancing display and touch performance.
  • This application provides a display panel, including:
  • a first conductive layer is located on one side of the substrate, and the first conductive layer includes display signal traces;
  • a second conductive layer is located on one side of the substrate.
  • the second conductive layer includes touch traces, at least a portion of the vertical projection of the touch traces on the substrate overlaps with at least a portion of the vertical projection of the display signal traces on the substrate.
  • a third conductive layer is located between the first conductive layer and the second conductive layer.
  • the third conductive layer includes a shielding structure configured to receive a fixed electrical signal.
  • the shielding structure is disposed between the display signal trace and the touch trace whose vertical projections on the substrate overlap. The vertical projections of the touch trace, the display signal trace, and the shielding structure on the substrate at least partially overlap.
  • This application provides a display device including the display panel described in any of the above claims.
  • the technical solution of this application embodiment provides a shielding structure between touch traces and display signal traces that overlap in vertical projection on the substrate.
  • the shielding structure is connected to a fixed electrical signal, so that the potential on the shielding structure remains unchanged, thereby playing a shielding role. This reduces signal interference between touch traces and display signal traces, thereby improving touch and display defects of the display panel and enhancing the display effect of the display panel.
  • Figure 1 is a cross-sectional structural diagram of a display panel provided in an embodiment of this application.
  • Figure 2 is a wiring diagram of a display panel provided in an embodiment of this application.
  • Figure 3 is a top view of a display panel provided in an embodiment of this application.
  • Figure 4 is a cross-sectional view of a display panel provided in an embodiment of this application.
  • Figure 5 is a top view of an organic planarization layer in a display panel provided in an embodiment of this application;
  • Figure 6 is a top view of another display panel provided in an embodiment of this application.
  • Figure 7 is a top view of an organic planarization layer in a display panel provided in an embodiment of this application.
  • Figure 8 is a top view of another display panel provided in an embodiment of this application.
  • Figure 9 is a cross-sectional view of another display panel provided in an embodiment of this application.
  • Figure 10 is a top view of an organic planarization layer of another display panel provided in an embodiment of this application.
  • Figure 11 is a top view of another display panel provided in an embodiment of this application.
  • Figure 12 is a top view of an organic planarization layer of another display panel provided in an embodiment of this application.
  • Figure 13 is a top view of another display panel provided in an embodiment of this application.
  • Figure 14 is a top view of another display panel provided in an embodiment of this application.
  • Figure 15 is a top view of another display panel provided in an embodiment of this application.
  • Figure 16 is a schematic diagram of the structure of a display device provided in an embodiment of this application.
  • touch traces and display signal traces located on different layers and whose vertical projections on the substrate overlap. Since touch traces and display signal traces, like data traces, transmit signals simultaneously when the display panel is driven, interference can occur between them due to signal coupling, leading to display or touch malfunctions.
  • FIG. 1 is a cross-sectional structural diagram of a display panel provided in an embodiment of this application.
  • the display panel includes:
  • a first conductive layer is located on one side of the substrate 10, and the first conductive layer includes display signal traces 111;
  • the second conductive layer is located on one side of the substrate 10.
  • the second conductive layer includes a touch trace 121, at least a portion of the vertical projection of the touch trace 121 on the substrate 10 overlaps with at least a portion of the vertical projection of the display signal trace 111 on the substrate.
  • the third conductive layer is located between the first and second conductive layers.
  • the third conductive layer includes a shielding structure 131, which is configured to receive a fixed electrical signal.
  • the shielding structure 131 is disposed between the display signal trace 111 and the touch trace 121, whose vertical projections on the substrate 10 overlap. The vertical projections of the touch trace 111, the display signal trace 121, and the shielding structure 131 on the substrate 10 at least partially overlap.
  • the substrate 10 can be a rigid substrate formed of at least one polymer material such as glass or glass fiber reinforced plastic, or a flexible substrate formed of at least one material such as polyimide (PI), polyethylene naphthalate (PEN), or polyethylene terephthalate (PET).
  • the display signal trace 111 can be a data trace providing data voltage, or a trace providing scanning signals or light emission control signals.
  • the first conductive layer can be located on the side of the second conductive layer closer to the substrate 10, that is, the display signal trace 111 is located below the touch trace 121; alternatively, the first conductive layer can be located on the side of the second conductive layer away from the substrate, that is, the touch trace 121 is located below the display signal trace 111.
  • the first conductive layer is exemplarily shown as being located on the side of the second conductive layer closer to the substrate 10.
  • the first conductive layer may include multiple display signal traces 111
  • the second conductive layer may include multiple touch signal traces 121. At least one of the multiple touch traces 112 overlaps with the vertical projection of the display signal traces 111 onto the substrate 10.
  • the third conductive layer includes at least one shielding structure 131, with shielding structures 131 provided between both the overlapping touch traces 112 and the display signal traces 111 on the substrate.
  • a shielding structure 131 is provided between the touch trace 121 and the display signal trace 111, whose vertical projections overlap on the substrate 10, to reduce the interference between the touch trace 121 and the display signal trace 111.
  • the area of the shielding structure 131's vertical projection on the substrate is smaller than the area of the overlapping portion of the vertical projections of the touch trace 121 and the display signal trace 111 on the substrate.
  • the shielding structure 131 is provided corresponding to a portion of the overlapping portion of the touch trace 121 and the display signal trace 111 in the thickness direction of the display panel, thereby reducing the signal interference between the touch trace 121 and the display signal trace 111.
  • the area of the vertical projection of the shielding structure 131 on the substrate is greater than or equal to the area of the overlapping portion of the vertical projection of the touch trace 121 on the substrate and the vertical projection of the display signal trace 111 on the substrate.
  • the shielding structure 131 is provided at least for the portion of the touch trace 121 and the display signal trace 111 that overlap in the thickness direction of the display panel, so that the portion of the touch trace 121 and the display signal trace 111 that has signal interference is completely shielded by the shielding structure 131, thereby minimizing signal interference.
  • the shielding structure 131 is a conductive structure configured to receive a fixed electrical signal, ensuring that the potential on the shielding structure 131 remains constant.
  • the shielding structure 131 effectively prevents interference from the display signal trace 111 to the touch signal on the touch trace 121, thereby guaranteeing touch accuracy.
  • the shielding structure 131 also effectively prevents interference from the touch trace 121 to the display signal trace 111, ensuring that the display signal trace 111 normally drives the display panel for display, thus improving display quality.
  • the technical solution of this application embodiment provides a shielding structure between touch traces and display signal traces that overlap in vertical projection on the substrate.
  • the shielding structure is connected to a fixed electrical signal, so that the potential on the shielding structure remains unchanged, thereby playing a shielding role. This reduces signal interference between touch traces and display signal traces, thereby improving touch and display defects of the display panel and enhancing the display effect of the display panel.
  • Figure 2 is a wiring diagram of a display panel according to an embodiment of this application
  • Figure 3 is a top view of a display panel according to an embodiment of this application.
  • the display panel further includes:
  • the fourth conductive layer is located between the first conductive layer and the third conductive layer, or the fourth conductive layer is disposed in the same layer as the first conductive layer.
  • the fourth conductive layer is located between the first conductive layer and the third conductive layer, or the fourth conductive layer is disposed in the same layer as the first conductive layer.
  • the fourth conductive layer includes at least one first conductive structure 141 and at least one second conductive structure 142, with a gap 1 between adjacent first conductive structures 141 and second conductive structures 142.
  • the first conductive structure 141 is configured to be connected to a first fixed potential
  • the second conductive structure 142 is configured to be connected to a second fixed potential.
  • the portion of the vertical projection of the display signal trace 111, the touch trace 121, and the shielding structure 131 on the substrate 10 overlaps within the vertical projection of the gap 1 on the substrate 10.
  • the first conductive structure 141 is a first power bus configured to transmit a first power supply voltage
  • the first fixed potential is the first power supply voltage
  • the second conductive structure 142 is a second power bus configured to transmit a second power supply voltage
  • the second fixed potential is the second power supply voltage.
  • the first fixed potential is greater than the second fixed potential.
  • the shielding structure 131 can be electrically connected to the first conductive structure 141, and the shielding structure 131 is connected to a constant DC voltage signal, so that the fixed electrical signal is the first fixed potential.
  • the shielding structure 131 can be electrically connected to the second conductive structure 142, and the shielding structure 131 is connected to a constant DC voltage signal, thereby making the fixed electrical signal the second fixed potential.
  • the display panel includes a display area AA and a fan-out area FA.
  • the fan-out area FA is located on one side of the display area, and the fan-out area FA is also provided with a driver chip 2 to provide touch signals to the touch trace 121 and display signals to the display signal trace 111.
  • At least one touch trace 121 and at least one display signal trace 111 are provided within the display area AA.
  • the touch trace 121 and the display signal trace 111 extend to the fan-out area FA to connect with the driver chip 2.
  • a first conductive structure 141 and a second conductive structure 142 are located in the fan-out area FA of the display panel. There is a large gap 1 between the first conductive structure 141 and the second conductive structure 142.
  • a shielding structure 131 is provided in the portion corresponding to the gap 1 between the first conductive structure 141 and the second conductive structure 142 to shield the interference between the touch trace 121 and the display signal trace 111.
  • the fourth conductive layer when the fourth conductive layer is disposed on the same layer as the first conductive layer, the first conductive layer is located within the gap, and the interference between the touch traces located above the gap and the display signal traces located within the gap is shielded by the shielding structure.
  • the fourth conductive layer is located between the first conductive layer and the third conductive layer, and the interference between the touch traces located above the gap and the display signal traces located below the gap is shielded by the shielding structure.
  • the extension direction of the portion of the touch trace 121 corresponding to the gap 1 is the same as the extension direction of the portion of the display signal trace 111 corresponding to the gap 1
  • the extension direction of the shielding structure 131 is the same as the extension direction of the portion of the touch trace 121 corresponding to the gap 1.
  • the length of the shielding structure 131 along the first direction X is greater than or equal to the greater of the lengths of the touch trace 121 and the display signal trace 111 along the first direction X, and/or the length of the shielding structure 131 along the second direction Y is greater than the greater of the lengths of the touch trace 121 and the display signal trace 111 along the second direction Y; wherein, the first direction Y is the extension direction of the portion of the touch trace 121 or the display signal trace 111 corresponding to the gap 1, and the second direction X is a direction perpendicular to the extension direction of the portion of the touch trace 121 or the display signal trace 111 corresponding to the gap 1.
  • the portion of touch trace 121 corresponding to gap 1 is the overlapping portion of the vertical projection of touch trace 121 onto the substrate and the vertical projection of gap 1 onto the substrate.
  • the portion of display signal trace 111 corresponding to gap 1 is the overlapping portion of the vertical projection of display signal trace 111 onto the substrate and the vertical projection of gap 1 onto the substrate.
  • the extension directions of the portions of touch trace 121 and display signal trace 111 corresponding to gap 1 intersect both the row direction and column direction of the display panel, as shown by the direction of the first trace 1211 of touch trace 121 in FIG2.
  • the extension directions of the portions of touch trace 121 and display signal trace 111 corresponding to gap 1 are the column direction of the display panel, as shown by the direction of the second trace 1212 of touch trace 121 in FIG2.
  • the row direction of the display panel is the row direction of the sub-pixel arrangement
  • the column direction is the column direction of the sub-pixel arrangement.
  • the length of the shielding structure 131 along the first direction Y is greater than or equal to the greater of the lengths of the touch trace 121 and the display signal trace 111 along the first direction Y. This ensures that there is always a conductive layer with a fixed electrical signal connected below the touch trace 121. That is, a shielding structure 131 is provided below the touch trace 121 at the gaps, and a first conductive structure 141 or a second conductive structure 142 is provided below the touch trace 121 at the non-gap areas. Thus, the shielding structure 131, the first conductive structure 141, and the second conductive structure 142 achieve signal shielding and reduce signal interference between the touch trace 121 and the display signal trace 111.
  • the length of the shielding structure 131 along the second direction X is greater than or equal to the greater of the lengths of the touch trace 121 and the display signal trace 111 along the second direction X. That is, the width of the shielding structure 131 is greater than the width of the touch trace 121 and the display signal trace 111, so that the shielding structure 131 completely shields the touch trace 121 and the display signal trace 111 in the second direction X, further reducing the interference of signals.
  • the vertical projection of the portion of the touch trace 121 corresponding to the gap 1 on the substrate is located within the vertical projection of the shielding structure 131 on the substrate, and the vertical projection of the portion of the display signal trace 111 corresponding to the gap 1 on the substrate is located within the vertical projection of the shielding structure 131 on the substrate.
  • the shielding structure 131 sufficiently shields the touch trace 121 and the display signal trace 111 in the gap 1 portion, reducing signal interference between the touch trace 121 and the display signal trace 111 in the gap, improving the display effect of the display panel, and avoiding the impact on touch.
  • the display panel includes multiple sub-pixels, which are disposed in the display area.
  • the first direction X is the column direction of the sub-pixel arrangement and the second direction Y is the row direction of the sub-pixel arrangement.
  • the display panel further includes an anode layer, with the third conductive layer disposed on the same layer as the anode layer.
  • the anode layer includes multiple mutually insulated anodes, and the display panel also includes a light-emitting layer and a cathode layer.
  • the anode, light-emitting layer, and cathode layer constitute a light-emitting device.
  • the third conductive layer is fabricated simultaneously with the anode layer. Having the third conductive layer on the same layer as the anode layer facilitates a thinner display panel.
  • the third conductive layer is disposed on the same layer as the anode layer and fabricated using the same process.
  • the anode layer located in the fan-out region FA is used as the third conductive layer, and the anode layer in the fan-out region FA is electrically isolated from the anode layer in the display region AA, avoiding the influence of the electrical signal connected to the anode layer in the fan-out region FA on the signal connected to the anode in the display region.
  • the gap 1 between the first conductive structure 141 and the second conductive structure 142 is covered by an anode layer and connected to a first fixed potential or a second fixed potential, so that when the touch trace 121 passes through the gap 1, the touch trace 121 and the display signal trace 111 are shielded by a shielding layer, and the signals do not interfere with each other.
  • the third conductive layer may be disposed in the same layer as other metal layers besides the first and second conductive layers, and this embodiment does not limit this.
  • Figure 4 is a cross-sectional view of a display panel provided in an embodiment of this application.
  • Figure 4 is a cross-sectional view along AA’ in Figure 3.
  • the display panel further includes an organic planarization layer 15, which is located between the third conductive layer and the fourth conductive layer.
  • the vertical projection of the organic planarization layer 15 onto the substrate covers the vertical projection of the void 1 onto the substrate.
  • a planarization layer needs to be prepared before the anode layer is prepared to ensure that the anode layer is relatively flat during subsequent preparation.
  • the organic planarization layer is prepared using organic materials such as organic adhesives, which offer better planarization results compared to inorganic materials.
  • the shielding structure 131 includes a planar portion 1311, a first side portion 1312, and a first edge portion 1313 that are electrically connected in sequence.
  • the planar portion 1311 is disposed on the surface of the organic planarization layer 15 away from the substrate.
  • the first edge portion 1313 is the side of the shielding structure 131 that is closer to the first preset conductive structure.
  • the first preset conductive structure is one of the first conductive structure 141 or the second conductive structure 142.
  • the first side portion 1312 is disposed on the sidewall of the organic planarization layer 15 that is closer to the first preset conductive structure.
  • At least a portion of the first edge portion 1313 is in contact with the first preset conductive structure.
  • the first preset conductive structure 142 when the first preset conductive structure 142 is a first power bus and the second preset conductive structure is a second power bus, the first preset conductive structure can be the second conductive structure 142, and at least a portion of the first edge portion 1313 contacts the second conductive structure 142, thereby transmitting the second fixed potential transmitted on the second power bus to the shielding structure 131.
  • the first preset conductive structure can be the first conductive structure 141, and at least a portion of the first edge portion 1313 contacts the first conductive structure 141, thereby transmitting the first fixed potential transmitted on the first power bus to the shielding structure 131.
  • the display panel also includes an inorganic layer 20, which is disposed between the substrate and the fourth conductive layer.
  • the organic planarization layer 15 is prepared using organic adhesive. During the formation of the anode layer, the display panel needs to undergo an annealing operation. During annealing, moisture is generated in the organic planarization layer 15. Since moisture cannot be transported between the metal and inorganic layers, the portion of the organic planarization layer 15 covering the anode layer and the portion corresponding to the gap 1 comes into contact with the inorganic layer 20, preventing moisture from escaping from the portion covered by the anode layer.
  • the organic adhesive can be partially removed on the side of the organic planarization layer 15 closest to the first preset conductive structure to achieve the overlap between the shielding structure 131 and the first preset conductive structure.
  • the planarization layer 15 is retained, allowing moisture to escape from the side of the organic planarization layer 15 away from the first preset conductive structure, preventing the anode layer from detaching due to moisture accumulation.
  • the arrows in Figures 3 and 4 indicate the direction of moisture transport.
  • the display panel also includes a pixel defining layer 16, a first inorganic encapsulation layer 17, an organic encapsulation layer 18, and a second inorganic encapsulation layer 19, which are stacked on the side of the third conductive layer away from the substrate.
  • the second conductive layer 12 is located on the side of the second inorganic encapsulation layer 19 away from the substrate.
  • Figure 5 is a top view of an organic planarization layer in a display panel provided in an embodiment of this application. Referring to Figures 3, 4 and 5, optionally, the vertical projection of the first edge portion 1313 on the substrate does not overlap with the vertical projection of the organic planarization layer 15 on the substrate.
  • the shielding structure 131 i.e. the anode layer, located on the organic planarization layer 15 and the first preset conductive structure
  • the first patterned region 151 of the organic planarization layer 15 corresponding to the first edge portion 1313 of the shielding structure is removed, and then the shielding structure 131 overlaps with the first preset conductive structure, such as the second conductive structure 142, at the first patterned region 151.
  • Figure 6 is a top view of another display panel provided in an embodiment of this application
  • Figure 7 is a top view of an organic planarization layer in another display panel provided in an embodiment of this application.
  • Figure 4 can also be a cross-sectional view along AA’ in Figure 6.
  • at least one first patterned region 151 is provided in the portion of the organic planarization layer 15 corresponding to the first edge portion 1313.
  • the vertical projection of the first patterned region 151 on the substrate does not overlap with the vertical projection of the organic planarization layer 15 on the substrate. That is, the first patterned region 151 is not provided with the organic planarization layer 15, and the shielding structure 131 contacts the first preset conductive structure through the first patterned region 151.
  • the vertical projection of the first patterned region 151 onto the substrate is a circle or a rectangle.
  • the first patterned region 151 can be a porous structure, a block structure, or a strip structure; this embodiment is not limited to any particular type.
  • the vertical projection of the portion of the organic planarization layer 15 corresponding to the first edge portion 1313 on the substrate overlaps with the projection of the first edge portion 1313 on the substrate.
  • only a portion of the portion of the organic planarization layer 15 corresponding to the first edge portion 1313 is removed. This allows for a larger area of the organic planarization layer, resulting in a larger area for water vapor to escape from the organic planarization layer 14, and a more secure adhesion of the anode layer to the organic planarization layer.
  • the structure shown in Figure 3 or Figure 6 above can be used to connect the shielding structure 131 to one side of the conductive structure.
  • the shielding structure 131 and the conductive structure can also overlap on both sides.
  • Figure 8 is a top view of another display panel provided in the embodiment of this application
  • Figure 9 is a cross-sectional view of another display panel provided in the embodiment of this application.
  • Figure 9 is a cross-sectional view along AA’ in Figure 8.
  • the shielding structure 131 also includes a second side portion 1314 and a second edge portion 1315.
  • the second edge portion 1315 is the side of the shielding structure 131 that is close to the second preset conductive structure.
  • the second preset conductive structure is the first conductive structure or the other of the second conductive structure.
  • the second side portion is disposed on the side wall of the organic planarization layer 15 that is close to the second preset conductive structure.
  • At least a portion of the second edge portion 1315 is in contact with the second preset conductive structure.
  • the first preset conductive structure is exemplarily shown as the second conductive structure 142
  • the second preset conductive structure is exemplarily shown as the first conductive structure 141.
  • the first conductive structure 141 is a second power bus
  • the first fixed potential is equal to the second fixed potential.
  • the shielding structure 131 is double-sided overlapping through the first side portion 1312, the first edge portion 1313, the second side portion 1314, and the second edge portion 1315, so that the second fixed potential transmitted on the second power bus is transmitted to the shielding structure 131, making the fixed electrical signal either the first fixed potential or the second fixed potential.
  • the first conductive structure 141 is the first power bus
  • the second conductive structure 142 is the first power bus
  • the first fixed potential is equal to the second fixed potential
  • the shielding structure 131 is double-sided overlapping through the first side portion 1312, the first edge portion 1313, the second side portion 1314, and the second edge portion 1315, so that the first fixed potential transmitted on the first power bus is transmitted to the shielding structure 131, making the fixed electrical signal either the first fixed potential or the second fixed potential.
  • the first conductive structure 141 is an initialization signal line
  • the second conductive structure 142 is an initialization signal line
  • the first fixed potential is equal to the second fixed potential
  • the shielding structure 131 is double-sided overlapping through the first side portion 1312, the first edge portion 1313, the second side portion 1314 and the second edge portion 1315, so that the first fixed potential transmitted on the initialization signal line is transmitted to the shielding structure 131, so that the fixed electrical signal is the first fixed potential or the second fixed potential.
  • Figure 10 is a top view of an organic planarization layer of a display panel provided in an embodiment of this application.
  • the vertical projection of the second edge portion 1315 on the substrate does not overlap with the vertical projection of the organic planarization layer 15 on the substrate.
  • the shielding structure 131 i.e., the anode layer
  • the second patterned region 152 corresponding to the second edge portion 1315 of the shielding structure in the organic planarization layer 15 is removed, thereby causing the shielding structure 131 to overlap with the second preset conductive structure at the second patterned region 152.
  • the partially removed portion of the organic planarization layer covers the anode layer, preventing moisture from escaping. Moisture in the organic planarization layer 15 can only be discharged from the portion of the organic planarization layer 15 that has not been removed.
  • the organic planarization layer 15 is removed from the area corresponding to the second edge portion 1315 on the side close to the second conductive structure 142, so that the contact area between the anode layer and the second preset conductive structure is larger, achieving a good electrical connection and ensuring stable access to fixed electrical signals on the shielding structure.
  • Figure 11 is a top view of another display panel provided in an embodiment of this application
  • Figure 12 is a top view of the organic planarization layer of another display panel provided in an embodiment of this application.
  • Figure 9 can also be a cross-sectional view corresponding to AA’ in Figure 11.
  • at least one second patterned region 152 is provided in the portion of the organic planarization layer 15 corresponding to the second edge portion 1315.
  • the vertical projection of the second patterned region 152 on the substrate does not overlap with the vertical projection of the organic planarization layer 15 on the substrate. That is, the second patterned region 152 is not provided with the organic planarization layer 15, and the shielding structure 131 contacts the second preset conductive structure through the second patterned region 152.
  • the vertical projection of the second patterned region 152 onto the substrate is a circle or a rectangle.
  • the shielding structure 131 i.e. the anode layer, located on the organic planarization layer 15 and the second preset conductive structure
  • the second patterned region 152 of the organic planarization layer 15 corresponding to the second edge portion 1315 of the shielding structure 131 is removed, and then the shielding structure 131 overlaps with the second preset conductive structure at the patterned region 152.
  • the shielding structure when the first fixed potential is equal to the second fixed potential, the shielding structure can overlap the conductive structure on both sides.
  • the organic planarization layer 15 includes at least one first patterned region 151 on the side near the first preset conductive structure and at least one second patterned region 152 on the side near the second preset conductive structure, so as to simultaneously take into account the stability of the overlap and the diversity of water vapor discharge paths, ensuring that when the shielding structure 131 stably receives the fixed electrical signal, the water vapor in the organic planarization layer can also be discharged well, avoiding the shielding structure from falling off.
  • the third conductive layer also includes a bridging structure, the shielding structure is electrically connected to the bridging structure, and the bridging structure is connected to a fixed electrical signal;
  • the vertical projection of the shielding structure onto the substrate lies within the vertical projection of the organic planarization layer onto the substrate.
  • the fan-out area FA includes a trace area FA1 with touch traces and a blank area FA2 without touch traces.
  • a fixed electrical signal can also be connected to the shielding structure in the blank area FA2 through a bridging structure. This makes it possible for the organic planarization layer of the trace area FA1 to be partially removed in order to achieve the connection between the shielding structure and the conductive structure, resulting in a larger area of the organic planarization layer in the trace area FA1, which is beneficial for the discharge of moisture during the annealing operation.
  • Figure 13 is a top view of another display panel provided in an embodiment of this application;
  • Figure 14 is a top view of another display panel provided in an embodiment of this application;
  • Figure 15 is a top view of another display panel provided in an embodiment of this application.
  • the shielding structure 131 is a full-surface structure as shown in Figure 13, meaning that no openings are made on the anode layer to improve the shielding effect.
  • the shielding structure 131 is a strip structure, with the extension direction of the shielding structure 131 being the same as the extension direction of the touch traces or display signal traces.
  • the shielding structure 131 is correspondingly arranged with touch traces or display signal traces whose vertical projections on the substrate overlap.
  • the shielding structure 131 is a full-surface structure, including at least one aperture structure 1311.
  • the vertical projection of the aperture structure 1311 on the substrate is located within the vertical projection of the gap region between two adjacent touch traces 121 on the substrate, or within the vertical projection of the gap region between two adjacent display signal traces on the substrate. Removing the upper part of the shielding structure 131 allows moisture in the organic planarization layer 15 located below the shielding structure 131 to be discharged from the perforated structure 1311. Consequently, when the shielding structure 131 is set for a longer distance along the extension direction of the touch trace 121, moisture in the organic planarization layer 15 can be discharged from the perforated structure 1311 when it cannot be transmitted to the side of the organic planarization layer 15.
  • the display panels in the above embodiments are applicable to 4-metal processes or 3-metal processes, and there is no limitation on the latter.
  • FIG16 is a schematic diagram of the structure of a display device provided in this application.
  • the display device 3 includes the display panel in any of the above embodiments.
  • the display device 3 can be a mobile phone as shown in FIG16, or a computer, television, smart wearable display device, etc. This application does not make any special limitation in this regard.

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Abstract

一种显示面板及显示装置。显示面板包括：衬底(10)；第一导电层，位于衬底(10)的一侧，第一导电层包括显示信号走线(111)；第二导电层，位于衬底(10)的一侧，第二导电层包括触控走线(121)，触控走线(121)在衬底(10)上的垂直投影的至少部分和显示信号走线(111)在衬底(10)上的垂直投影的至少部分重叠；第三导电层，第三导电层位于第一导电层和第二导电层之间，第三导电层包括屏蔽结构(131)，屏蔽结构(131)被配置为接入固定电信号，屏蔽结构(131)设置于在衬底(10)上的垂直投影存在重叠的显示信号走线(111)和触控走线(121)之间。

Description

显示面板及显示装置
本申请要求在2024年05月30日提交中国专利局、申请号为202410692300.4的中国专利申请的优先权，以及在2024年06月19日提交中国专利局、申请号为202410796437.4的中国专利申请的优先权，以上申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，例如涉及显示面板及显示装置。
背景技术
有机发光二极管(Organic Light Emitting Diode，OLED)显示器具有主动发光、可视角度大，色域宽、亮度高、响应速度快、低功耗以及结构上可弯曲等优点，越来越受到市场的欢迎。
在相关技术中，为了使得显示面板更轻更薄以适应以后的折叠及卷曲产品，触控技术被开发出来。但是存在触控功能的显示面板极易出现显示不良或触控不良。
发明内容
本申请提供了一种显示面板及显示装置，以改善显示面板的显示不良以及触控不良，提高显示效果和触控效果。
本申请实施例提供了一种显示面板，包括：
衬底；
第一导电层，位于所述衬底的一侧，所述第一导电层包括显示信号走线；
第二导电层，位于所述衬底的一侧，所述第二导电层包括触控走线，所述触控走线在所述衬底上的垂直投影的至少部分和所述显示信号走线在所述衬底上的垂直投影的至少部分重叠；
第三导电层，所述第三导电层位于所述第一导电层和所述第二导电层之间，所述第三导电层包括屏蔽结构，所述屏蔽结构被配置为接入固定电信号，所述屏蔽结构设置于在所述衬底上的垂直投影存在重叠的所述显示信号走线和所述触控走线之间，所述触控走线、所述显示信号走线和所述屏蔽结构在所述衬底上的垂直投影至少部分重叠。
本申请实施例提供了一种显示装置，包括上述任一项所述的显示面板。
本申请实施例的技术方案，通过在衬底上的垂直投影存在重叠的触控走线和显示信号走线之间设置屏蔽结构，屏蔽结构接入固定电信号，使得屏蔽结构上的电位不变进而起到屏蔽作用，从而降低触控走线和显示信号走线之间的信号干扰，进而改善显示面板的触控不良和显示不良，提高显示面板的显示效果。
附图说明
图1为本申请实施例提供的一种显示面板的剖面结构示意图；
图2为本申请实施例提供的一种显示面板的布线示意图；
图3为本申请实施例提供的一种显示面板的俯视图；
图4为本申请实施例提供的一种显示面板的剖面图；
图5为本申请实施例提供的一种显示面板中有机平坦化层的俯视图；
图6为本申请实施例提供的另一种显示面板的俯视图；
图7为本申请实施例提供的另一种显示面板中有机平坦化层的俯视图；
图8为本申请实施例提供的另一种显示面板的俯视图；
图9为本申请实施例提供的另一种显示面板的剖面图；
图10为本申请实施例提供的另一种显示面板的有机平坦化层的俯视图；
图11为本申请实施例提供的另一种显示面板的俯视图；
图12为本申请实施例提供的另一种显示面板的有机平坦化层的俯视图；
图13为本申请实施例提供的另一种显示面板的俯视图；
图14为本申请实施例提供的另一种显示面板的俯视图；
图15为本申请实施例提供的另一种显示面板的俯视图；
图16为本申请实施例提供的一种显示装置的结构示意图。
具体实施方式
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，除了包含本申请实施例示出的一系列步骤或单元的过程、方法、系统、产品或设备还可包括没有清楚地列出的这一系列步骤或单元的其它过程、方法、系统、产品和设备，或对于这些过程、方法、系统、产品或设备固有的其它步骤或单元。
位于不同层且在衬底上的垂直投影存在交叠的触控走线和显示信号走线之间存在信号干扰。由于在对显示面板进行驱动时，触控走线和显示信号走线如数据走线上同时传输信号，触控走线和显示信号走线间会因信号耦合发生干扰，导致显示不良或触控不良。
本申请提出如下解决方案：
图1为本申请实施例提供的一种显示面板的剖面结构示意图，参考图1，显示面板包括：
衬底10；
第一导电层，位于衬底10的一侧，第一导电层包括显示信号走线111；
第二导电层，位于衬底10的一侧，第二导电层包括触控走线121，触控走线121在衬底10上的垂直投影的至少部分和显示信号走线111在衬底上的垂直投影的至少部分重叠；
第三导电层，第三导电层位于第一导电层和第二导电层之间，第三导电层包括屏蔽结构131，屏蔽结构131被配置为接入固定电信号，屏蔽结构131设置于在衬底10上的垂直投影存在重叠的显示信号走线111和触控走线121之间，触控走线111、显示信号走线121和屏蔽结构131在衬底10上的垂直投影至少部分重叠。
衬底10可以为由诸如玻璃、玻璃纤维增强塑料等聚合物材料中的至少一种材料形成的硬质基底或由聚酰亚胺(Polyimide，PI)、聚萘二甲酸乙二醇酯(Polyethylene naphthalate，PEN)或者聚对苯二甲酸乙二醇酯(Polyethylene terephthalate，PET)等中至少一种材料形成的柔性基底。显示信号走线111可以为提供数据电压的数据走线，还可以为提供扫描信号或者发光控制信号的走线。第一导电层可以位于第二导电层靠近衬底10的一侧，也即显示信号走线111位于触控走线121的下方，或者，第一导电层位于第二导电层远离衬底的一侧，也即触控走线121位于显示信号走线111的下方，本实施例中示例性示出第一导电层位于第二导电层靠近衬底10的一侧。第一导电层可以包括多条显示信号走线111，第二导电层可以包括多条触控信号走线121，多条触控走线112中包括至少一条与显示信号走线111在衬底10上的垂直投影存在重叠的触控走线112。第三导电层包括至少一个屏蔽结构131，在衬底上的垂直投影存在重叠的触控走线112和显示信号走线111之间均设置屏蔽结构131。
在布线的过程中，因触控走线121和显示信号走线111位于不同层，且在显示面板的厚度方向上存在至少部分重叠，二者的信号会因耦合产生信号干扰。因此，在衬底10上的垂直投影存在重叠的触控走线121和显示信号走线111之间设置屏蔽结构131，以降低触控走线121和显示信号走线111之间的干扰。在一种可选的实施方式中，屏蔽结构131在衬底上的垂直投影的面积小于触控走线121在衬底上的垂直投影与显示信号走线111在衬底上的垂直投影交叠部分的面积，也即屏蔽结构131对应于触控走线121和显示信号走线111在显示面板厚度方向上重叠部分的一部分设置，进而降低触控走线121和显示信号走线111之间的信号干扰。在另一种可选的实施方式中，屏蔽结构131在衬底上的垂直投影的面积大于或等于触控走线121在衬底上的垂直投影与显示信号走线111在衬底上的垂直投影交叠部分的面积，也即，屏蔽结构131至少对应于触控走线121和显示信号走线111在显示面板厚度方向上重叠的部分设置，使得触控走线121和显示信号走线111存在信号干扰的部分完全被屏蔽结构131屏蔽，最大程度上降低信号干扰。
屏蔽结构131为导电结构，被配置为接入固定电信号，使得屏蔽结构131上的电位保持不变。屏蔽结构131可以有效避免显示信号走线111对触控走线121上的触控信号的干扰，进而保证触控精度。同时，屏蔽结构131还可以有效避免触控走线121对显示信号走线111的干扰，保证显示信号走线111正常驱动显示面板进行显示，改善显示不良。
本申请实施例的技术方案，通过在衬底上的垂直投影存在重叠的触控走线和显示信号走线之间设置屏蔽结构，屏蔽结构接入固定电信号，使得屏蔽结构上的电位不变进而起到屏蔽作用，从而降低触控走线和显示信号走线之间的信号干扰，进而改善显示面板的触控不良和显示不良，提高显示面板的显示效果。
图2为本申请实施例提供的一种显示面板的布线示意图，图3为本申请实施例提供的一种显示面板的俯视图，参考图2和图3，可选的，显示面板还包括：
第四导电层，第一导电层位于第二导电层靠近衬底10的一侧，第四导电层位于第一导电层和第三导电层之间，或者，第四导电层与第一导电层同层设置。在显示信号走线所在的金属层位于触控走线所在的金属层的下方时，第四导电层位于第一导电层和第三导电层之间，或者，第四导电层与第一导电层同层设置。
第四导电层包括至少一个第一导电结构141和至少一个第二导电结构142，相邻的第一导电结构141和第二导电结构142之间存在空隙1，第一导电结构141被配置为接入第一固定电位，第二导电结构142被配置为接入第二固定电位；
显示信号走线111、触控走线121以及屏蔽结构131在衬底10上的垂直投影重叠的部分位于空隙1在衬底10上的垂直投影内。
在一种可选的实施方式中，第一导电结构141为第一电源总线，被配置为传输第一电源电压，第一固定电位为第一电源电压，第二导电结构142为第二电源总线，被配置为传输第二电源电压，第二固定电位为第二电源电压，第一固定电位大于第二固定电位。屏蔽结构131可以与第一导电结构141电连接，屏蔽结构131接入恒定直流电压信号，使得固定电信号为第一固定电位。或者屏蔽结构131可以与第二导电结构142电连接，屏蔽结构131接入恒定直流电压信号，进而使得固定电信号为第二固定电位。显示面板包括显示区AA和扇出区FA，扇出区FA位于显示区的一侧，扇出区FA还设置有驱动芯片2，以向触控走线121提供触控信号、向显示信号走线111提供显示信号。显示区AA内设置至少一条触控走线121和至少一条显示信号走线111，触控走线121和显示信号走线111延伸至扇出区FA以与驱动芯片2连接。第一导电结构141和第二导电结构142位于显示面板的扇出区FA，第一导电结构141和第二导电结构142之间有较大空隙1，在位于显示区的触控走线121需要延伸至扇出区FA时，触控走线121经过第一导电结构141和第二导电结构142之间的空隙1时会耦合下方显示信号线111，进而发生信号干扰。因此，在第三导电层，在对应于第一导电结构141和第二导电结构142的空隙1的部分设置屏蔽结构131以屏蔽触控走线121和显示信号走线111之间的干扰。
在一种可选的实施方式中，在第四导电层与第一导电层同层设置时，第一导电层位于空隙内，通过屏蔽结构对位于空隙上方的触控走线和位于空隙内的显示信号走线之间的干扰进行屏蔽，又或者，第四导电层位于第一导电层和第三导电层之间，通过屏蔽结构对位于空隙上方的触控走线和位于空隙下方的显示信号走线之间的干扰进行屏蔽。
继续参考图2和3，可选的，触控走线121对应于空隙1的部分的延伸方向与显示信号走线111对应于空隙1的部分的延伸方向相同，屏蔽结构131的延伸方向与触控走线121对应于空隙1的部分的延伸方向相同。
屏蔽结构131沿第一方向X上的长度大于或等于触控走线121和显示信号走线111沿第一方向X上的长度的较大者的长度，和/或，屏蔽结构131沿第二方向Y上的长度大于触控走线121和显示信号走线111沿第二方向Y上的长度的较大者的长度；其中，第一方向Y为触控走线121或显示信号走线111对应于空隙1的部分的延伸方向，第二方向X为与触控走线121或显示信号走线111对应于空隙1的部分的延伸方向垂直的方向。
触控走线121对应于空隙1的部分为触控走线121中在衬底上的垂直投影与空隙1在衬底上的垂直投影交叠的部分。显示信号走线111对应于空隙1的部分为显示信号走线111中在衬底上的垂直投影与空隙1在衬底上的垂直投影交叠的部分。在一种可选的实施方式中，触控走线121以及显示信号走线111对应于空隙1的部分的延伸方向与显示面板的行方向以及列方向均相交，如图2中触控走线121的第一走线1211的方向所示。在另一种可选的实施方式中，触控走线121以及显示信号走线111对应于空隙1的部分的延伸方向为显示面板的列方向，如图2中触控走线121的第二走线1212的方向所示。显示面板的行方向为子像素排布的行方向，列方向为子像素排布的列方向。
屏蔽结构131沿第一方向Y上的长度大于或等于触控走线121和显示信号走线111沿第一方向Y上的长度较大者的长度，进而使得在触控走线121的下方始终存在接入固定电信号的导电层，也即，触控走线121下方，对应于空隙处设置有屏蔽结构131，对应于非空隙处，触摸走线121下方设置有第一导电结构141或第二导电结构142，进而通过屏蔽结构131、第一导电结构141和第二导电结构142实现信号屏蔽作用，降低触控走线121和显示信号走线111的信号干扰。屏蔽结构131沿第二方向X上的长度大于或等于触控走线121和显示信号走线111沿第二方向X上的长度较大者的长度，也即，屏蔽结构131的宽度大于触控走线121以及显示信号线111的宽度，使得屏蔽结构131在第二方向X上完全屏蔽触控走线121和显示信号线111，进一步降低信号的干扰作用。
本实施例中通过设置屏蔽结构131沿第一方向Y上的长度大于或等于触控走线121和显示信号走线111沿第一方向Y上的长度中较大者的长度，和/或，屏蔽结构131沿第二方向X上的长度大于触控走线121和显示信号走线111沿第二方向Y上的长度中较大者的长度，使得触控走线121对应于空隙1的部分在衬底上的垂直投影位于屏蔽结构131在衬底上的垂直投影内、显示信号线111对应于空隙1的部分在衬底上的垂直投影位于屏蔽结构131在衬底上的垂直投影内，屏蔽结构131充分将触控走线121和显示信号线111在空隙1部分进行屏蔽，降低在空隙处，触控走线121和显示信号线111之间的信号干扰，提高显示面板的显示效果以及避免对触控的影响。
显示面板包括多个子像素，子像素设置于显示区，本实施例以及下述实施例中以第一方向X为子像素排布的列方向，第二方向Y为子像素排布的行方向为例。
继续参考图2和图3，可选的，显示面板还包括阳极层，第三导电层与阳极层同层设置。阳极层包括多个相互绝缘的阳极，显示面板还包括发光层和阴极层，阳极、发光层和阴极层构成发光器件。在一种可选的实施方式中，制备阳极层时，同步制备第三导电层，第三导电层与阳极层同层后，有利于显示面板的轻薄化。在另一种可选的实施方式中，第三导电层与阳极层同层设置，且基于同一制备工艺制备，也即，阳极层整层制备完成后，将位于扇出区FA中的阳极层作为为第三导电层，且扇出区FA中的阳极层与显示区AA中的阳极层电隔离，避免扇出区FA中阳极层接入的电信号对显示区中阳极接入的信号的影响。
在第一导电结构141和第二导电结构142之间的空隙1采用阳极层覆盖并接入第一固定电位或第二固定电位，使得触控走线121经过空隙1时，触控走线121与显示信号走线111有屏蔽层，信号之间不发生干扰。
在其他可选的实施方式中，第三导电层可与除第一导电层和第二导电层之外的其他金属层同层设置，本实施例对此不做限定。
图4为本申请实施例提供的一种显示面板的剖面图，图4为沿图3中AA’的剖面图，参考图3和图4，可选的，显示面板还包括有机平坦化层15，有机平坦化层15位于第三导电层和第四导电层之间；
有机平坦化层15在衬底上的垂直投影覆盖空隙1在衬底上的垂直投影。
第四导电层制备完成后，在制备阳极层之前，需要制备一层平坦化层，以使得后续制备阳极层时，阳极层较为平整。有机平坦化层采用有机材料如有机胶制备，相较于无机材料，有机材料的平坦化效果更好。
继续参考图3和图4，屏蔽结构131包括依次电连接的平面部1311、第一侧面部1312和第一边缘部1313，平面部1311设置于有机平坦化层15远离衬底的表面，第一边缘部1313为屏蔽结构131中靠近第一预设导电结构的一侧，第一预设导电结构为第一导电结构141或第二导电结构142中的一者，第一侧面部1312设置于有机平坦化层15靠近第一预设导电结构一侧的侧壁上；
第一边缘部1313的至少部分与第一预设导电结构接触。
示例性的，在第一预设导电结构142为第一电源总线，第二预设导电结构为第二电源总线时，第一预设导电结构可以为第二导电结构142，第一边缘部1313的至少部分与第二导电结构接触142，实现将第二电源总线上传输的第二固定电位传输至屏蔽结构131。或者，第一预设导电结构可以为第一导电结构141，第一边缘部1313的至少部分与第一导电结构141接触，实现将第一电源总线上传输的第一固定电位传输至屏蔽结构131。
显示面板还包括无机层20，无机层设置于衬底和第四导电层之间。有机平坦化层15采用有机胶制备，在形成阳极层时需对显示面板进行退火操作，而在退火操作时，有机平坦化层15中会产生水汽，因金属和无机层中水汽无法传输，因此，有机平坦化层15表面覆盖阳极层的部分以及对应于空隙1的部分与无机层20接触，导致水汽无法从被阳极层覆盖的部分排出。本实施例中，在有机平坦化层15靠近第一预设导电结构的一侧可部分去除有机胶实现屏蔽结构131与第一预设导电结构的搭接，在有机平坦化层15远离第一预设导电结构的一侧，平坦化层15保留，使得水汽可从有机平坦化层15远离第一预设导电结构的一侧排出，避免因水汽聚集导致阳极层脱落。图3和图4中箭头方向为水汽传输方向。
显示面板还包括自第三导电层远离衬底的一侧层叠设置的像素限定层16、第一无机封装层17、有机封装层18、第二无机封装层19。如图4所示，本实施例中示例性示出，第二导电层12位于第二无机封装层19远离衬底的一侧。
图5为本申请实施例提供的一种显示面板中有机平坦化层的俯视图，参考图3、图4和图5，可选的，第一边缘部1313在衬底上的垂直投影与有机平坦化层15在衬底上的垂直投影无交叠。
为实现位于有机平坦化层15上的屏蔽结构131也即阳极层与第一预设导电结构电连接，将有机平坦化层15对应于屏蔽结构的第一边缘部1313的第一图案化区域151去除，进而在第一图案化区域151处，屏蔽结构131与第一预设导电结构如第二导电结构142搭接。
将有机平坦化层15靠近第二导电结构142的一侧对应于第一边缘部1313的区域的有机胶全部去除，使得阳极层与第二预设导电结构的接触面积更大，实现良好的电连接，保证屏蔽结构上稳定的接入固定电信号。
图6为本申请实施例提供的另一种显示面板的俯视图，图7为本申请实施例提供的另一种显示面板中有机平坦化层的俯视图，图4还可以为沿图6中AA’的剖面图，参考图4、图6和图7，可选的，有机平坦化层15对应于第一边缘部1313的部分设置至少一个第一图案化区域151，第一图案化区域151在衬底上的垂直投影与有机平坦化层15在衬底上垂直投影无交叠，也即，第一图案化区域151不设置有机平坦化层15，屏蔽结构131通过第一图案化区域151与第一预设导电结构接触；
第一图案化区域151在衬底上的垂直投影为圆形或矩形。
第一图案化区域151可以为孔状结构，还可以为块状结构，又或者为条状结构，本实施例不做限定。有机平坦化层15对应于第一边缘部1313的部分在衬底上的垂直投影与第一边缘部1313在衬底上的投影重叠。有机平坦化层15对应于第一边缘部1313的部分相较于上个实施例中靠近第一预设导电结构的一侧全部去除，本实施例中，有机平坦化层15对应于第一边缘部1313的部分仅部分区域被去除，可以使得有机平坦化层的面积更大，使得有机平坦化层14中的水汽的排出面积更大，使得阳极层贴附有机平坦化层更为牢固。
在第一预设导电结构和第二预设导电结构接入的电位不同，或者相同时，均可以采用上述图3或图6所示的结构进行屏蔽结构131与导电结构的单侧搭接。
在第一导电结构和第二导电结构接入的电位相同，也即第一固定电位等于第二固定电位时，屏蔽结构131与导电结构还可以双侧搭接。图8为本申请实施例提供的另一种显示面板的俯视图，图9为本申请实施例提供的另一种显示面板的剖面图，图9为沿图8中AA’的剖面图，参考图8和图9，可选的，屏蔽结构131还包括第二侧面部1314和第二边缘部1315，第二边缘部1315为屏蔽结构131中靠近第二预设导电结构的一侧，第二预设导电结构为第一导电结构或第二导电结构中的另一者，第二侧面部设置于有机平坦化层15靠近第二预设导电结构一侧的侧壁上；
第二边缘部1315的至少部分与第二预设导电结构接触。
本实施例中示例性示出第一预设导电结构为第二导电结构142，第二预设导电结构为第一导电结构141。第一导电结构141为第二电源总线，第二导电结构141为第二电源总线，第一固定电位等于第二固定电位，通过第一侧面部1312、第一边缘部1313、第二侧面部1314和第二边缘部1315实现屏蔽结构131的双侧搭接，以将第二电源总线上传输的第二固定电位传输至屏蔽结构131上，使得固定电信号为第一固定电位或第二固定电位。在其他实施例中，第一导电结构141为第一电源总线，第二导电结构142为第一电源总线，第一固定电位等于第二固定电位，通过第一侧面部1312、第一边缘部1313、第二侧面部1314和第二边缘部1315实现屏蔽结构131的双侧搭接，以将第一电源总线上传输的第一固定电位传输至屏蔽结构131上，使得固定电信号为第一固定电位或第二固定电位。或者，第一导电结构141为初始化信号线，第二导电结构142为初始化信号线，第一固定电位等于第二固定电位，通过第一侧面部1312、第一边缘部1313、第二侧面部1314和第二边缘部1315实现屏蔽结构131的双侧搭接，以将初始化信号线上传输的第一固定电位传输至屏蔽结构131上，使得固定电信号为第一固定电位或第二固定电位。
图10为本申请实施例提供的另一种显示面板的有机平坦化层的俯视图，参考图8、图9和图10，可选的，第二边缘部1315在衬底上的垂直投影与有机平坦化层15在衬底上的垂直投影无交叠。为实现位于有机平坦化层15上的屏蔽结构131也即阳极层与第二预设导电结构电连接，将有机平坦化层15对应于屏蔽结构的第二边缘部1315的第二图案化区域152去除，进而在第二图案化区域152处，屏蔽结构131与第二预设导电结构搭接。有机平坦化层中被部分去除的部分覆盖阳极层，使得水汽无法排出，有机平坦化层15中的水汽只能从有机平坦化层15中未被去除的部分排出。
将有机平坦化层15靠近第二导电结构142的一侧对应于第二边缘部1315的区域去除，使得阳极层与第二预设导电结构的接触面积更大，实现良好的电连接，保证屏蔽结构上稳定的接入固定电信号。
图11为本申请实施例提供的另一种显示面板的俯视图，图12为本申请实施例提供的另一种显示面板的有机平坦化层的俯视图，图9也可以为对应于图11中AA’的剖面图，参考图9、图11和图12，可选的，有机平坦化层15对应于第二边缘部1315的部分设置至少一个第二图案化区域152，第二图案化区域152在衬底上的垂直投影与有机平坦化层15在衬底上垂直投影无交叠，也即第二图案化区域152不设置有机平坦化层15，屏蔽结构131通过第二图案化区域152与第二预设导电结构接触；
第二图案化区域152在衬底上的垂直投影为圆形或矩形。
为实现位于有机平坦化层15上的屏蔽结构131也即阳极层与第二预设导电结构电连接，将有机平坦化层15对应于屏蔽结构131的第二边缘部1315的第二图案化区域152去除，进而在图案化区域152处，屏蔽结构131与第二预设导电结构搭接。
本实施例中，在第一固定电位等于第二固定电位时，屏蔽结构可双侧搭接导电结构，在一种可选的实施方式中，有机平坦化层15靠近第一预设导电结构的一侧包括至少一个第一图案化区域151、靠近第二预设导电结构的一侧包括至少一个第二图案化区域152，以同时兼顾搭接的稳定性以及水汽排出路径的多样性，保证屏蔽结构131稳定接收固定电信号时，有机平坦化层中的水汽也可以很好排出，避免屏蔽结构脱落。
参考图2，可选的，第三导电层还包括跨接结构，屏蔽结构与跨接结构电连接，跨接结构接入固定电信号；
屏蔽结构在衬底上的垂直投影位于有机平坦化层在衬底上的垂直投影内。
扇出区FA包括设置触控走线的走线区FA1和不设置触控走线的空白区FA2，除上述实施例中所示在走线区FA1实现屏蔽结构与导电结构的搭接，还可在空白区FA2通过跨接结构实现将固定电信号接入至屏蔽结构，进而使得走线区FA1的有机平坦化层无需为实现屏蔽结构与导电结构的搭接而部分去除，使得在走线区FA1有机平坦化层的面积更大，有利于在退火操作时水汽的排出。
图13为本申请实施例提供的另一种显示面板的俯视图，图14为本申请实施例提供的另一种显示面板的俯视图，图15为本申请实施例提供的另一种显示面板的俯视图，可选的，屏蔽结构131为图13所示的一整面结构，屏蔽结构也即阳极层上不做开口处理，提高屏蔽效果。或者，屏蔽结构131为条状结构，屏蔽结构131的延伸方向与触控走线或显示信号走线的延伸方向相同，屏蔽结构131与在衬底上的垂直投影存在重叠的触控走线或者显示信号走线对应设置。又或者，屏蔽结构131为一整面结构，屏蔽结构131包括至少一个孔状结构1311，孔状结构1311在衬底上的垂直投影位于相邻的两个触控走线121的间隙区域在衬底上的垂直投影内，或者位于相邻的两个显示信号走线的间隙区域在衬底上的垂直投影内。屏蔽结构131上部分区域去除，可以使得位于屏蔽结构131下方的有机平坦化层15的水汽从孔状结构1311处排出，进而使得屏蔽结构131沿触控走线121延伸方向上设置的较长时，有机平坦化层15中的水汽在传输不到有机平坦化层15的侧面时，可以从孔状结构1311排出。
上述多个实施例中的显示面板适用于4层金属层也即4metal制程，也适用于3层金属层也即3metal制程，对此不做限定。
本申请实施例还提供了一种显示装置，图16为本申请实施例提供的一种显示装置的结构示意图，参考图16，显示装置3包括上述任一实施例中的显示面板，显示装置3可以为图16所示的手机，也可以为电脑、电视机、智能穿戴显示装置等，本申请实施例对此不作特殊限定。
应该理解，可以使用上面所示的多种形式的流程，重新排序、增加或删除步骤。例如，本申请中记载的多个步骤可以并行地执行也可以顺序地执行也可以不同的次序执行，只要能够实现本申请的技术方案所期望的结果，本文在此不进行限制。

Claims (20)

  1. 一种显示面板，包括：
    衬底；
    第一导电层，位于所述衬底的一侧，所述第一导电层包括显示信号走线；
    第二导电层，位于所述衬底的一侧，所述第二导电层包括触控走线，所述触控走线在所述衬底上的垂直投影的至少部分和所述显示信号走线在所述衬底上的垂直投影的至少部分重叠；
    第三导电层，所述第三导电层位于所述第一导电层和所述第二导电层之间，所述第三导电层包括屏蔽结构，所述屏蔽结构被配置为接入固定电信号，所述屏蔽结构设置于在所述衬底上的垂直投影存在重叠的所述显示信号走线和所述触控走线之间，所述触控走线、所述显示信号走线和所述屏蔽结构在所述衬底上的垂直投影至少部分重叠。
  2. 根据权利要求1所述的显示面板，还包括：
    第四导电层，所述第一导电层位于所述第二导电层靠近所述衬底的一侧，所述第四导电层位于所述第一导电层和所述第三导电层之间，或者，所述第四导电层与所述第一导电层同层设置；
    所述第四导电层包括第一导电结构和第二导电结构，相邻的所述第一导电结构和所述第二导电结构之间存在空隙，所述第一导电结构被配置为接入第一固定电位，所述第二导电结构被配置为接入第二固定电位；
    所述显示信号走线、所述触控走线和所述屏蔽结构在所述衬底上的垂直投影重叠的部分位于所述空隙在所述衬底上的垂直投影内。
  3. 根据权利要求2所述的显示面板，其中，所述第一导电层位于所述第二导电层靠近所述衬底的一侧，所述第四导电层与所述第一导电层同层设置，所述第一导电层位于所述空隙内。
  4. 根据权利要求2所述的显示面板，其中，所述第一导电结构包括第一电源总线，所述第二导电结构包括第二电源总线，所述第一固定电位大于所述第二固定电位，所述固定电信号为所述第一固定电位或所述第二固定电位。
  5. 根据权利要求2所述的显示面板，其中，所述第一导电结构包括第一电源总线，所述第二导电结构包括第一电源总线，所述第一固定电位等于所述第二固定电位，所述固定电信号为所述第一固定电位或所述第二固定电位。
  6. 根据权利要求2所述的显示面板，其中，所述第一导电结构包括第二电源总线，所述第二导电结构包括第二电源总线，所述第一固定电位等于所述第二固定电位，所述固定电信号为所述第一固定电位或所述第二固定电位。
  7. 根据权利要求2所述的显示面板，其中，所述第一导电结构包括初始化信号线，所述第二导电结构包括初始化信号线，所述第一固定电位等于所述第二固定电位，所述固定电信号为所述第一固定电位或所述第二固定电位。
  8. 根据权利要求4-7任一项所述的显示面板，其中，所述第一导电结构和所述第二导电结构位于显示面板的扇出区。
  9. 根据权利要求2所述的显示面板，其中，所述触控走线对应于所述空隙的部分的延伸方向与所述显示信号走线对应于所述空隙的部分的延伸方向相同，所述屏蔽结构的延伸方向与所述触控走线对应于所述空隙的部分的延伸方向相同；
    所述屏蔽结构沿第一方向上的长度大于或等于所述触控走线和所述显示信号走线沿第一方向上的长度的较大者的长度，或，所述屏蔽结构沿第二方向上的长度大于所述触控走线和所述显示信号走线沿第二方向上的长度的较大者的长度，或，所述屏蔽结构沿第一方向上的长度大于或等于所述触控走线和所述显示信号走线沿第一方向上的长度的较大者的长度，以及所述屏蔽结构沿第二方向上的长度大于所述触控走线和所述显示信号走线沿第二方向上的长度的较大者的长度；其中，所述第一方向为所述触控走线或所述显示信号走线对应于所述空隙的部分的延伸方向，所述第二方向为与所述触控走线或所述显示信号走线对应于所述空隙的部分的延伸方向垂直的方向；
    所述显示面板包括多个子像素，所述第一方向为子像素排布的列方向，所述第二方向为子像素排布的行方向。
  10. 根据权利要求2所述的显示面板，还包括阳极层，所述第三导电层与所述阳极层同层设置。
  11. 根据权利要求10所述的显示面板，还包括：
    有机平坦化层，所述有机平坦化层位于所述第三导电层和所述第四导电层之间；
    所述有机平坦化层在所述衬底上的垂直投影覆盖所述空隙在所述衬底上的垂直投影。
  12. 根据权利要求11所述的显示面板，中，
    所述屏蔽结构包括依次电连接的平面部、第一侧面部和第一边缘部，所述平面部设置于所述有机平坦化层远离衬底的表面，所述第一边缘部为所述屏蔽结构中靠近第一预设导电结构的一侧，所述第一预设导电结构为所述第一导电结构或所述第二导电结构中的一者，所述第一侧面部设置于所述有机平坦化层靠近所述第一预设导电结构一侧的侧壁上；
    所述第一边缘部的至少部分与所述第一预设导电结构接触。
  13. 根据权利要求12所述的显示面板，其中，所述第一边缘部在所述衬底上的垂直投影与所述有机平坦化层在所述衬底上的垂直投影无交叠。
  14. 根据权利要求12所述的显示面板，其中，所述有机平坦化层对应于所述第一边缘部的部分设置至少一个第一图案化区域，所述第一图案化区域不设置所述有机平坦化层，所述屏蔽结构通过所述第一图案化区域与所述第一预设导电结构接触；
    所述第一图案化区域在所述衬底上的垂直投影为圆形或矩形。
  15. 根据权利要求13或14所述的显示面板，其中，所述第一固定电位等于所述第二固定电位；
    所述屏蔽结构还包括第二侧面部和第二边缘部，所述第二边缘部为所述屏蔽结构中靠近第二预设导电结构的一侧，所述第二预设导电结构为所述第一导电结构或所述第二导电结构中的另一者，所述第二侧面部设置于所述有机平坦化层靠近所述第二预设导电结构一侧的侧壁上；
    所述第二边缘部的至少部分与所述第二预设导电结构接触。
  16. 根据权利要求15所述的显示面板，其中，所述第二边缘部在所述衬底上的垂直投影与所述有机平坦化层在所述衬底上的垂直投影无交叠。
  17. 根据权利要15所述的显示面板，其中，所述有机平坦化层对应于所述第二边缘部的部分设置至少一个第二图案化区域，所述第二图案化区域不设置所述有机平坦化层，所述屏蔽结构通过所述第二图案化区域与所述第二预设导电结构接触；
    所述第二图案化区域在所述衬底上的垂直投影为圆形或矩形。
  18. 根据权利要求11所述的显示面板，其中，所述第三导电层还包括跨接结构，所述屏蔽结构与所述跨接结构电连接，所述跨接结构接入所述固定电信号；
    所述屏蔽结构在所述衬底上的垂直投影位于所述有机平坦化层在所述衬底上的垂直投影内。
  19. 根据权利要求1所述的显示面板，其中，所述屏蔽结构包括一整面结构；
    或者，所述屏蔽结构包括条状结构，所述屏蔽结构的延伸方向与所述触控走线或所述显示信号走线的延伸方向相同；
    或者，所述屏蔽结构包括一整面结构，所述屏蔽结构包括至少一个孔状结构，所述至少一个孔状结构在所述衬底上的垂直投影位于相邻的两个触控走线的间隙区域在所述衬底上的垂直投影内，或者位于相邻的两个显示信号走线的间隙区域在所述衬底上的垂直投影内。
  20. 一种显示装置，包括权利要求1-19任一项所述的显示面板。
PCT/CN2025/090042 2024-05-30 2025-04-21 显示面板及显示装置 Pending WO2025246723A1 (zh)

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CN108091669A (zh) * 2016-11-21 2018-05-29 乐金显示有限公司 有机发光显示装置
WO2023122880A1 (zh) * 2021-12-27 2023-07-06 京东方科技集团股份有限公司 显示面板和显示装置
WO2024044983A1 (zh) * 2022-08-30 2024-03-07 京东方科技集团股份有限公司 触控显示面板及显示装置
US20240155899A1 (en) * 2021-07-29 2024-05-09 Chengdu Boe Optoelectronics Technology Co., Ltd. Display panel and method for manufacturing the same, and display apparatus
CN118613108A (zh) * 2024-05-30 2024-09-06 昆山国显光电有限公司 显示面板及显示装置

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CN108091669A (zh) * 2016-11-21 2018-05-29 乐金显示有限公司 有机发光显示装置
US20240155899A1 (en) * 2021-07-29 2024-05-09 Chengdu Boe Optoelectronics Technology Co., Ltd. Display panel and method for manufacturing the same, and display apparatus
WO2023122880A1 (zh) * 2021-12-27 2023-07-06 京东方科技集团股份有限公司 显示面板和显示装置
WO2024044983A1 (zh) * 2022-08-30 2024-03-07 京东方科技集团股份有限公司 触控显示面板及显示装置
CN118613108A (zh) * 2024-05-30 2024-09-06 昆山国显光电有限公司 显示面板及显示装置

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