CN114256298A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN114256298A CN114256298A CN202011025782.6A CN202011025782A CN114256298A CN 114256298 A CN114256298 A CN 114256298A CN 202011025782 A CN202011025782 A CN 202011025782A CN 114256298 A CN114256298 A CN 114256298A
- Authority
- CN
- China
- Prior art keywords
- metal
- layer
- auxiliary
- display panel
- display area
- 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
Links
Images
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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display panel and a display device. The display panel includes: the array substrate is provided with a display area and a non-display area; the lapping metal is positioned in the non-display area; the cathode layer is laminated on the array substrate, extends from the display area to the non-display area and is lapped with the lapping metal; the display panel also comprises at least one auxiliary metal wire, and the at least one auxiliary metal wire is electrically connected with at least two different positions of the lapping metal; the auxiliary metal wire is positioned on one side of the lapping metal close to the display area, and at least part of the auxiliary metal wire is positioned in the display area. The embodiment of the invention can reduce the pressure drop on the overlapped metal and improve the display uniformity.
Description
Technical Field
The present invention relates to display technologies, and in particular, to a display panel and a display device.
Background
With the development of display technology, the display panel plays an increasingly greater role, and the corresponding requirements on the display panel are also increasingly higher.
However, the conventional display panel is prone to display non-uniformity during display, and further application of the display panel is severely limited.
Disclosure of Invention
The invention provides a display panel and a display device, which are used for solving the problem of uneven display of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, where the display panel includes: the array substrate is provided with a display area and a non-display area; the lapping metal is positioned in the non-display area; the cathode layer is laminated on the array substrate, extends from the display area to the non-display area and is lapped with the lapping metal; the display panel also comprises at least one auxiliary metal wire, and the at least one auxiliary metal wire is electrically connected with at least two different positions of the lapping metal; the auxiliary metal wire is positioned on one side of the lapping metal close to the display area, and at least part of the auxiliary metal wire is positioned in the display area.
Optionally, the non-display area comprises a binding area; the lap joint metal comprises a first metal section and/or a second metal section, and the first metal section and the second metal section are respectively positioned at two sides of the display area; the first metal section and the second metal section both extend along the direction of the binding area pointing to the display area.
Optionally, the auxiliary metal lines include a first auxiliary metal line and a second auxiliary metal line, the first auxiliary metal line is located in the display area, and the first auxiliary metal line extends along a direction in which the binding area points to the display area; the first auxiliary metal line is electrically connected with at least two different positions of the first metal segment through at least two second auxiliary metal lines, and/or the first auxiliary metal line is electrically connected with at least two different positions of the second metal segment through at least two second auxiliary metal lines.
Optionally, the display device further includes an anode layer stacked on the array substrate, the second auxiliary metal lines and the first auxiliary metal lines are all multiple, the second auxiliary metal lines are electrically connected with the first metal segments, the first auxiliary metal lines and the second metal segments, and the multiple second auxiliary metal lines and the multiple first auxiliary metal lines are connected to form a grid structure; and along the thickness direction of the display panel, the projection of the auxiliary metal wire is not overlapped with the projection of the anode layer.
Optionally, the lap joint metal, the first auxiliary metal wire and the second auxiliary metal wire are disposed on the same layer as the anode layer.
Optionally, the anode layer comprises a plurality of anodes, one for each grid.
Optionally, the lap joint metal further includes a third metal segment, the third metal segment is connected between the first metal segment and the second metal segment, and the third metal segment is located on one side of the display area far away from the binding area.
Optionally, the array substrate further includes a gate layer, a capacitor metal layer, a source drain electrode layer, and a power supply metal layer; at least part of the auxiliary metal wire and the grid layer, the capacitor metal layer, the source drain electrode layer or the power supply metal layer are arranged on the same layer.
Optionally, the array substrate further includes a gate layer, a capacitor metal layer, a source drain electrode layer, and a power supply metal layer; one part of the lap joint metal and the anode layer are arranged on the same layer, and the other part of the lap joint metal and the power supply metal layer are arranged on the same layer.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel according to the first aspect.
The display panel adopted by the invention comprises an array substrate, wherein the array substrate is provided with a display area and a non-display area, and the non-display area comprises a binding area; the lapping metal is positioned in the non-display area; the cathode layer is stacked on the array substrate, extends from the display area to the non-display area and is lapped with the lapping metal; the display panel further comprises at least one auxiliary metal wire, the at least one auxiliary metal wire is electrically connected with at least two different positions of the lapping metal, the auxiliary metal wire is positioned on one side, close to the display area, of the lapping metal, and at least part of the auxiliary metal wire is positioned in the display area. Through setting up the auxiliary metal line, be equivalent to parallelly connected a resistance on the overlap joint metal to make the equivalent resistance of auxiliary metal line and overlap joint metal diminish, corresponding voltage difference of each part also diminishes on the overlap joint metal, also the pressure Drop (IR Drop) on the overlap joint metal reduces, thereby very big reduction the signal difference of each part of cathode layer, improve and show inhomogeneous phenomenon, simultaneously can also reduce the consumption. The frame of the display panel can be made narrower.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view taken along line A1A2 of FIG. 6;
FIG. 8 is a cross-sectional view taken along line A3A4 of FIG. 6;
fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view of another display panel according to an embodiment of the present invention;
FIG. 11 is a cross-sectional view of another display panel according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As mentioned in the background art, the display panel in the prior art is prone to display non-uniformity, and the inventors have found through careful study that the reason for this technical problem is: an existing display panel, such as an OLED (Organic Light-Emitting Diode) display panel, a cathode of the display panel is generally disposed on a whole surface, the cathode extends from a display area to a non-display area, and is overlapped with an overlap metal in the non-display area, and the overlap metal is electrically connected to a bonding pad of the bonding area through a wire routing manner, so as to receive a common signal required by normal operation of the cathode.
Based on the technical problem, the invention provides the following solution:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and referring to fig. 1, the display panel includes: the array substrate is provided with a display area AA and a non-display area NAA; the lapping metal 101, the lapping metal 101 locates in non-display area NAA; the cathode layer is stacked on the array substrate, extends from the display area AA to the non-display area NAA and is lapped with the lapping metal 101; the display panel further comprises at least one auxiliary metal line 102, wherein the auxiliary metal line 102 is electrically connected with at least two different positions of the lapping metal 101; the auxiliary metal line 102 is located on a side of the bonding metal 101 close to the display area AA, and the auxiliary metal line 102 is at least partially located in the display area AA.
Specifically, the display panel may be, for example, an OLED display panel, a portion of the array substrate located in the display area AA includes a plurality of pixel circuits, the pixel circuits provide driving signals for a light-emitting functional layer of the display panel to drive the light-emitting functional layer to emit light for display, the non-display area NAA may be disposed around the display area AA, a plurality of bonding pads 104 are disposed in the bonding area NAA1, the bonding metal 101 may be electrically connected to the bonding pads 104 through, for example, connection lines 103, the connection lines 103 may be disposed on the same layer or different layers with the bonding metal 101, and the bonding pads 104 may be bonded to a driving Chip or a COF (Chip on Film) to provide common signals required for the operation of the light-emitting functional layer to the bonding metal 101. The anode layer may be ITO, the cathode layer may be a magnesium-silver alloy, and the light emitting functional layer may include a hole injection layer, a hole transport layer, an electron blocking layer, a light emitting layer, a hole blocking layer, an electron transport layer, and an electron injection layer, which are sequentially stacked on the anode layer, and holes generated in the anode layer and electrons generated in the cathode layer are aligned in the light emitting layer to generate excitons, which are attenuated due to instability, and thus the light emitting layer emits light to display. The anode layer can comprise a plurality of anodes, each light-emitting functional layer corresponds to one anode, and the cathode layer is arranged on the whole surface and receives a common signal through lapping metal.
When the lap metal 101 is narrow, the resistance of the lap metal is large, in this embodiment, by arranging the auxiliary metal line 102, it is equivalent to connect a resistor in parallel between two positions where the lap metal 101 and the auxiliary metal line 102 are connected, so that the equivalent resistance of the auxiliary metal line 102 and the lap metal 101 becomes small, the voltage difference of each part on the lap metal 101 correspondingly becomes small, that is, the voltage Drop (IR Drop) on the lap metal 101 is reduced, thereby greatly reducing the signal difference of each part of the cathode layer, improving the uneven display phenomenon, and simultaneously reducing the power consumption. In this embodiment, at least a portion of the auxiliary metal line 102 is located in the display area AA, and does not occupy too much space of the non-display area NAA, so that the frame of the display panel is also narrow, and is not required to be electrically connected to the cathode layer through a via hole, and the manufacturing process is simple. It should be noted that, the routing manner of the auxiliary metal lines 102 is not limited in the present embodiment, and as shown in fig. 2, fig. 2 is a schematic structural diagram of another display panel provided in the present embodiment of the invention, and different from the display panel shown in fig. 1, the routing direction of the auxiliary metal lines 102 shown in fig. 2 is not parallel to the first direction X, nor perpendicular to the first direction X, as long as the auxiliary metal lines 102 are electrically connected to at least two different positions of the first metal segments 1011.
According to the technical scheme of the embodiment, the adopted display panel comprises an array substrate, wherein the array substrate is provided with a display area and a non-display area, and the non-display area comprises a binding area; the lapping metal is positioned in the non-display area; the cathode layer is stacked on the array substrate, extends from the display area to the non-display area and is lapped with the lapping metal; the display panel further comprises at least one auxiliary metal wire, the at least one auxiliary metal wire is electrically connected with at least two different positions of the lapping metal, the auxiliary metal wire is positioned on one side, close to the display area, of the lapping metal, and at least part of the auxiliary metal wire is positioned in the display area. Through setting up the auxiliary metal line, be equivalent to parallelly connected a resistance on the overlap joint metal to make the equivalent resistance of auxiliary metal line and overlap joint metal diminish, corresponding voltage difference of each part also diminishes on the overlap joint metal, also the pressure Drop (IR Drop) on the overlap joint metal reduces, thereby very big reduction the signal difference of each part of cathode layer, improve and show inhomogeneous phenomenon, simultaneously can also reduce the consumption. The frame of the display panel can be made narrower.
Alternatively, fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and referring to fig. 3, the non-display area NAA includes a binding area NAA 1; the lap metal 101 includes a first metal segment 1011 and/or a second metal segment 1012, and the first metal segment 1011 and the second metal segment 1012 are respectively located at two sides of the display area AA; the first metal segment 1011 and the second metal segment 1012 both extend along the direction (the first direction X) in which the binding area NAA points to the display area AA.
Specifically, as shown in fig. 3, the non-display area NAA is disposed around the display area AA, and the corresponding overlay metal 101 may be disposed to half surround the display area AA, that is, the overlay metal 101 may include a first metal segment 1011, a second metal segment 1012 and a third metal segment 1013, the third metal segment 1013 is connected between the first metal segment 1011 and the second metal segment 1012, and the third metal segment 1013 is located at a side of the display area AA far from the binding area NAA 1; both the first metal segment 1011 and the second metal segment 1012 can be electrically connected to the bonding pad 104 located in the bonding area NAA1 through the connection line 103, and the bonding pad 104 provides a common signal to both the first metal segment 1011 and the second metal segment 1012, so that the voltage drop on the bonding metal 101 is smaller, in this embodiment, at least two different positions on the first metal section 1011 and the second metal section 1012 can be electrically connected through the auxiliary metal wire, so that the first metal segment 1011 and the second metal segment 1012 are equivalent to connecting a resistor in parallel, therefore, on one hand, the voltage drop on the first metal section 1011 and the second metal section 1012 is further reduced, and on the other hand, the difference of signals (potential values) between the same positions (for example, the same distance from the binding area along the first direction X) of the first metal section 1011 and the second metal section 1012 can be reduced, so that the display uniformity of the display panel is further improved.
It should be noted that, when the overlay metal 101 includes the first metal segment 1011 and the second metal segment 1012, the arrangement manner of the auxiliary metal line is not limited to the structure shown in fig. 3, as shown in fig. 4, fig. 4 is a schematic structural diagram of another display panel provided by the embodiment of the present invention, and the auxiliary metal line 102 may be connected at the same position of the first metal segment 1011 and the second metal segment 1012, so as to reduce the difference of signals between the same position of the first metal segment 1011 and the same position of the second metal segment 1012, thereby further improving the display uniformity of the display panel.
Optionally, with continued reference to fig. 3, the auxiliary metal line 102 includes a first auxiliary metal line 1021 and a second auxiliary metal line 1022, the first auxiliary metal line 1021 is located in the display area AA, and the first auxiliary metal line 1021 extends along a direction (the first direction X) of the bonding area NAA1 pointing to the display area AA; the first auxiliary metal line 1021 is electrically connected to at least two different locations of the first metal segment 1011 through at least two second auxiliary metal lines 1022, and/or the first auxiliary metal line 1021 is electrically connected to at least two different locations of the second metal segment 1012 through at least two second auxiliary metal lines 1022.
Specifically, in the auxiliary metal lines 102 electrically connected to the first metal segment 1011, the first auxiliary metal line 1021 is electrically connected to at least two different positions on the first metal segment 1011 through at least two second auxiliary metal lines 1022; or, in the auxiliary metal lines 102 electrically connected to the second metal segment 1012, the first auxiliary metal line 1021 is electrically connected to at least two different positions on the second metal segment 1012 through at least two second auxiliary metal lines 1022; alternatively, fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention, in fig. 5, a first auxiliary metal line 1021 is electrically connected to a first metal segment 1011 and a second metal segment 1012 through at least two second auxiliary metal lines 1022, that is, the auxiliary metal line connected to the first metal segment 1011 and the auxiliary metal line 1012 connected to the second metal segment 1012 share the first auxiliary metal line 1021. In this embodiment, the first auxiliary metal line is arranged to extend along the first direction X, the second auxiliary metal line may extend along any direction, and may be located in the display area and the non-display area, as long as the first auxiliary metal line and the lap metal are electrically connected together, preferably, the second auxiliary metal line may be arranged to extend along the second direction Y, the first direction X is perpendicular to the second direction Y, the routing is regular, and the routing is convenient; in addition, in the display panel, the pixels are generally arranged in an array, and the row direction of the pixels is the same as the first direction X, and in the embodiment, the first auxiliary metal line 1021 and the second auxiliary metal line 1022 may be routed by using the space between the pixels, so as to avoid the interference to the light emission of the pixels. It should be noted that, although the first auxiliary metal line 1021 extends along the first direction X in the embodiment as an example, the invention is not limited to the first auxiliary metal line 1021 extending along the first direction X, and in other embodiments, the first auxiliary metal line 1021 may extend along other directions, for example, along any direction (for example, the second direction Y) intersecting the first direction X.
It should be noted that fig. 3 illustrates an example in which at least two second auxiliary metal lines 1022 are connected to two ends of the first auxiliary metal line 1021, and in some other embodiments, the second auxiliary metal lines 1022 may be connected to other positions on the first auxiliary metal line 1021.
Optionally, fig. 6 is a schematic structural diagram of another display panel provided in the embodiment of the present invention; referring to fig. 6, the display panel further includes an anode layer stacked on the array substrate, wherein a plurality of second auxiliary metal lines 1022 and a plurality of first auxiliary metal lines 1021 are provided, the second auxiliary metal lines 1022 are electrically connected to the first metal segments 1011, the first auxiliary metal lines 1021 and the second metal segments 1012, and the plurality of second auxiliary metal lines 1022 and the plurality of first auxiliary metal lines 1021 are connected to form a grid structure; and the projection of the auxiliary metal line 102 and the projection of the anode layer do not overlap in the thickness direction of the display panel.
With such an arrangement, the plurality of first auxiliary metal lines and the plurality of second auxiliary metal lines are connected to form a grid structure, and the number of positions connected to the first metal section 1011 and the second metal section 1012 is large, which is equivalent to that a plurality of resistors are connected in parallel between different positions of the first metal section 1011 and the second metal section 1012, on one hand, the voltage drop on the first metal section 1011 and the second metal section 1012 can be further reduced, on the other hand, the grid structure can also provide a plurality of signal paths, thereby preventing the phenomenon that a signal cannot be transmitted due to the defect at a certain position on the first metal section 1011 or the second metal section 1012, and improving the working stability of the display panel. Meanwhile, the projections of the auxiliary metal lines 102 and the anode layer are not overlapped, so that the short circuit between the auxiliary metal lines and the anode layer due to the coupling phenomenon generated between the auxiliary metal lines 102 and the anode layer by parasitic capacitance can be avoided, and the working stability of the display panel is further improved.
Alternatively, fig. 7 is a cross-sectional view taken along a direction A1a2 in fig. 6, and fig. 8 is a cross-sectional view taken along a direction A3a4 in fig. 6, and in combination with fig. 6 to 8, the bonding metal 101, the first auxiliary metal line 1021, and the second auxiliary metal line 1022 are disposed on the same layer as the anode layer.
Specifically, the array substrate may include a substrate 2011, a buffer layer 2012, an active layer 2013, a gate layer 2014, a capacitor metal layer 2015, a source-drain electrode layer 2016, a planarization layer 2017 and a power supply metal layer 2018, which are sequentially stacked, where the capacitor metal layer 2015 is configured to set a capacitor electrode of a pixel circuit in the display panel, the power supply metal layer is configured to set a power supply line of the pixel circuit, the display panel further includes a pixel defining layer 106 disposed on the array substrate, the pixel defining layer includes a plurality of openings, the openings define regions where sub-pixels are located, and the display panel further includes a light emitting functional layer 107 and a cathode layer 108; the array substrate comprises a thin film transistor 2019, and the thin film transistor 2019 can be of a top gate structure or a bottom gate structure. In this embodiment, the lap joint metal 101, the first auxiliary metal line 1021, and the second auxiliary metal line 1022 are disposed on the same layer as the anode layer 105, and the anode layer is closer to the cathode layer, so that the lap joint metal and the cathode layer can be conveniently lapped, and meanwhile, the lap joint metal and the first auxiliary metal line are more conveniently connected.
Alternatively, fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and referring to fig. 9, the anode layer includes a plurality of anodes 1051, and each grid corresponds to one anode 1051.
Specifically, in the present embodiment, the shape of the auxiliary metal line 102 can be set according to the shape of the anode 1051, so that the area of the auxiliary metal line 102 is larger, the corresponding resistance is also smaller, the voltage drop on the first metal segment 1011 and the second metal segment 1012 can be further reduced, and the display uniformity can be further improved.
Optionally, fig. 10 is a cross-sectional view of another display panel provided in the embodiment of the present invention, and referring to fig. 10, the array substrate further includes a gate layer 2014, a capacitor metal layer 2015, a source-drain electrode layer 2016 and a power metal layer 2018; the auxiliary metal line 102 is at least partially disposed in the same layer as at least one of the gate layer 2014, the capacitor metal layer 2015, the source/drain electrode layer 1016, and the power metal layer 2018.
Specifically, fig. 10 only shows that the auxiliary metal line 102 is disposed at least partially on the same layer as the power metal layer 2018, the auxiliary metal line 102 may be electrically connected to the bridging metal 101 in the non-display region through a via, and the like, and the auxiliary metal line 102 is wired in multiple layers, which may improve the diversity of wiring manners in the display panel, so that each metal line may be more easily arranged, and may also be beneficial to increase the thickness of the auxiliary metal line 102, thereby reducing the resistance of the auxiliary metal line 102, further reducing the voltage drop on the first metal segment 1011 and/or the second metal segment 1012, and further improving the display uniformity.
Optionally, fig. 11 is a cross-sectional view of another display panel according to an embodiment of the present invention, and referring to fig. 11, the array substrate includes a gate layer 2014, a capacitor metal layer 2015, a source-drain electrode layer 2016 and a power metal layer 2018; a part of the lap metal 101 is disposed on the same layer as the anode layer 105, and another part of the lap metal 101 is disposed on the same layer as the power supply metal layer 2018.
Specifically, the lap joint metal 101 may be in a double-layer wiring manner, that is, one portion of the lap joint metal 101 is disposed on the same layer as the power supply metal layer, and the other portion of the lap joint metal 101 is disposed on the same layer as the anode layer, so that the thickness of the lap joint metal 101 is increased, the resistance of the lap joint metal 101 is reduced, the voltage drop of the lap joint metal 101 is further reduced, and the display uniformity of the display panel is further improved.
Fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention, referring to fig. 12, the display device includes a display panel according to any embodiment of the present invention, and the display device may be a mobile phone, a tablet, a display, a computer, an MP3, an MP4, a smart watch, or other wearable devices.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A display panel, comprising:
the array substrate is provided with a display area and a non-display area;
the lapping metal is positioned in the non-display area;
the cathode layer is laminated on the array substrate, extends from the display area to the non-display area and is lapped with the lapping metal;
the display panel also comprises at least one auxiliary metal wire, and the at least one auxiliary metal wire is electrically connected with at least two different positions of the lapping metal; the auxiliary metal wire is positioned on one side of the lapping metal close to the display area, and at least part of the auxiliary metal wire is positioned in the display area.
2. The display panel according to claim 1, wherein the non-display region comprises a binding region;
the lap joint metal comprises a first metal section and/or a second metal section, and the first metal section and the second metal section are respectively positioned at two sides of the display area; the first metal section and the second metal section both extend along the direction of the binding area pointing to the display area.
3. The display panel according to claim 2, wherein the auxiliary metal line includes a first auxiliary metal line and a second auxiliary metal line, the first auxiliary metal line being located in the display area, the first auxiliary metal line extending in a direction in which the bonding area points to the display area;
the first auxiliary metal line is electrically connected with at least two different positions of the first metal segment through at least two second auxiliary metal lines, and/or the first auxiliary metal line is electrically connected with at least two different positions of the second metal segment through at least two second auxiliary metal lines.
4. The display panel according to claim 3, further comprising an anode layer stacked on the array substrate,
the second auxiliary metal lines and the first auxiliary metal lines are all multiple, the second auxiliary metal lines are electrically connected with the first metal sections, the first auxiliary metal lines and the second metal sections, and the multiple second auxiliary metal lines are connected with the multiple first auxiliary metal lines to form a grid structure;
and along the thickness direction of the display panel, the projection of the auxiliary metal wire is not overlapped with the projection of the anode layer.
5. The display panel according to claim 4,
the lap joint metal, the first auxiliary metal wire and the second auxiliary metal wire are arranged on the same layer with the anode layer.
6. The display panel of claim 5, wherein the anode layer comprises a plurality of anodes, one for each grid.
7. The display panel of claim 2, wherein the overlay metal further comprises a third metal segment connected between the first metal segment and the second metal segment, and the third metal segment is located on a side of the display region away from the bonding region.
8. The display panel according to claim 1, wherein the array substrate further comprises a gate layer, a capacitor metal layer, a source drain electrode layer and a power supply metal layer;
at least part of the auxiliary metal wire and the grid layer, the capacitor metal layer, the source drain electrode layer or the power supply metal layer are arranged on the same layer.
9. The display panel according to claim 4, wherein the array substrate further comprises a gate layer, a capacitor metal layer, a source drain electrode layer and a power supply metal layer;
one part of the lap joint metal and the anode layer are arranged on the same layer, and the other part of the lap joint metal and the power supply metal layer are arranged on the same layer.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011025782.6A CN114256298A (en) | 2020-09-25 | 2020-09-25 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011025782.6A CN114256298A (en) | 2020-09-25 | 2020-09-25 | Display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114256298A true CN114256298A (en) | 2022-03-29 |
Family
ID=80789308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011025782.6A Pending CN114256298A (en) | 2020-09-25 | 2020-09-25 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114256298A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115762417A (en) * | 2022-11-25 | 2023-03-07 | 武汉天马微电子有限公司 | Display panel and display device |
-
2020
- 2020-09-25 CN CN202011025782.6A patent/CN114256298A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115762417A (en) * | 2022-11-25 | 2023-03-07 | 武汉天马微电子有限公司 | Display panel and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108878444B (en) | Display panel and display device | |
| KR102505585B1 (en) | Organic light emitting display panel and organic light emitting display device | |
| US8432334B2 (en) | Organic light emitting display device | |
| JP4206388B2 (en) | Flat panel display device | |
| TWI648851B (en) | Display device | |
| KR102598831B1 (en) | Stretchable display device | |
| CN112335051A (en) | Light emitting device and display apparatus having the same | |
| JP2018109787A (en) | TFT array substrate | |
| US20180374828A1 (en) | Micro led display panel | |
| US20080136323A1 (en) | Organic electroluminescent display device | |
| KR101696483B1 (en) | Organic light emitting diodde desplay device | |
| CN109950297B (en) | Organic light-emitting display panel and device | |
| CN111640774B (en) | Display substrate and display device | |
| JP2018194571A (en) | Display device | |
| KR102481789B1 (en) | Organic light emitting display device | |
| KR20200115807A (en) | Display device | |
| WO2020062801A1 (en) | Display device and flexible oled panel thereof | |
| JP4684988B2 (en) | Dual panel type organic light emitting display and method for manufacturing the same | |
| CN114256298A (en) | Display panel and display device | |
| CN111403468A (en) | Display panel and display device | |
| CN112114699B (en) | Touch display panel and display device | |
| JP4622346B2 (en) | Self-luminous device and electronic device | |
| JP2017096998A (en) | Display device | |
| JP2008218330A (en) | Organic el display device | |
| KR102383889B1 (en) | Organic light emitting diode display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |