CN110310572B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110310572B CN110310572B CN201910562866.4A CN201910562866A CN110310572B CN 110310572 B CN110310572 B CN 110310572B CN 201910562866 A CN201910562866 A CN 201910562866A CN 110310572 B CN110310572 B CN 110310572B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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Abstract
The invention discloses a display panel and a display device, wherein the display panel further comprises a first power supply signal line and a second power supply signal line, and the first power supply signal line and the second power supply signal line are respectively used for transmitting power supply signals with different electric potentials to pixel units positioned in a display area. The first power signal line and the second power signal line are at least arranged in the first area and the third area, at least one layer of metal structure is arranged between the first power signal line and the second power signal line along the direction perpendicular to the display panel, and the first power signal line and the second power signal line are overlapped with the metal structure. According to the technical scheme, the display uniformity of the display panel is improved, the crosstalk between the first power supply signal line and the second power supply signal line is effectively reduced, and the realization of the narrow frame of the display panel is facilitated.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.
Background
Along with the development of display technology, the size of the display panel is gradually increased, the design difficulty of the display panel is gradually increased, and the requirement of a user on the display uniformity of the display panel is higher and higher.
The display panel is provided with a power signal line for providing a power signal, and with the increase of the size of the display panel, the IR Drop (voltage Drop) problem of the power signal line is more and more serious, so that the uniformity of the power signal transmitted on the power signal line is poor, and the display uniformity of the display panel is affected.
Disclosure of Invention
The invention provides a display panel and a display device, which improve the display uniformity of the display panel, effectively reduce crosstalk between a first power supply signal line and a second power supply signal line and are beneficial to realizing a narrow frame of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, including:
the display device comprises a display area and a non-display area surrounding the display area, wherein the non-display area comprises a first area and a third area which are respectively positioned at two sides of the display area along a first direction, and a second area and a fourth area which are respectively positioned at two sides of the display area along a second direction; wherein the first direction and the second direction are perpendicular to each other;
a first power supply signal line and a second power supply signal line for transmitting power supply signals of different potentials to pixel units located in the display region, respectively;
the first power supply signal line and the second power supply signal line are disposed at least in the first region and the third region, at least one metal structure is disposed between the first power supply signal line and the second power supply signal line in a direction perpendicular to the display panel, and both the first power supply signal line and the second power supply signal line have an overlapping portion with the metal structure.
Further, the first power supply signal line and the second power supply signal line are disposed around the display region.
Further, the display panel further includes:
the first power signal line and the second power signal line are respectively located on two sides of the gate driving circuit along a direction perpendicular to the display panel, and the first power signal line and the second power signal line are located in a region where the gate driving circuit is located along the first direction.
Furthermore, a first dielectric layer is arranged between the first power signal line and a metal layer of the gate driving circuit close to one side of the first power signal line, a second dielectric layer is arranged between the second power signal line and a metal layer of the gate driving circuit close to one side of the second power signal line, and the thickness of the first dielectric layer and the thickness of the second dielectric layer are both greater than the thickness of an insulating layer of the gate driving circuit.
Further, in the second region and the fourth region, a metal structure is provided between the first power supply signal line and the second power supply signal line in a direction perpendicular to the display panel, and vertical projections of the first power supply signal line, the second power supply signal line, and the metal structure overlap.
Further, a line width of the first power supply signal line and a line width of the second power supply signal line are both equal to or greater than 500 μm.
Further, the display panel further includes:
the first auxiliary wiring and the first power signal line are positioned on different layers and are electrically connected with each other through a through hole;
and the second auxiliary wiring and the second power signal line are positioned on different layers and are electrically connected through the through hole.
Further, along a direction perpendicular to the display panel, the first power signal line overlaps with a vertical projection of the first auxiliary trace, and the second power signal line overlaps with a vertical projection of the second auxiliary trace.
Further, the first power signal line and the first auxiliary trace are located on the same side of the at least one metal structure, and the second power signal line and the second auxiliary trace are located on the same side of the at least one metal structure.
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 embodiment of the invention provides a display panel and a display device, the display panel comprises a display area and a non-display area surrounding the display area, the non-display area comprises a first area and a third area which are respectively positioned at two sides of the display area along a first direction, and a second area and a fourth area which are respectively positioned at two sides of the display area along a second direction, the first direction and the second direction are mutually vertical, the display panel also comprises a first power signal line and a second power signal line, the first power signal line and the second power signal line are respectively used for transmitting power signals with different electric potentials to pixel units positioned in the display area, the first power signal line and the second power signal line are at least arranged in the first area and the third area and are arranged along the direction vertical to the display panel, at least one layer of metal structure is arranged between the first power signal line and the second power signal line, and the first power signal line and the second power signal line are respectively overlapped with the metal structure, the display uniformity of the display panel is improved, the crosstalk between the first power supply signal line and the second power supply signal line is effectively reduced, and the realization of the narrow frame of the display panel is facilitated.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along the direction BB' in FIG. 1;
fig. 3 is a schematic top view of another display panel according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view taken along direction DD' in FIG. 3;
fig. 5 is a schematic cross-sectional structure diagram of a first region of a display panel according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional structure view of a second area of a display panel according to an embodiment of the present invention;
fig. 7 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. Throughout this specification, the same or similar reference numbers refer to the same or similar structures, elements, or processes. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The embodiment of the invention provides a display panel, which comprises a display area and a non-display area surrounding the display area, wherein the non-display area comprises a first area and a third area which are respectively positioned at two sides of the display area along a first direction, and a second area and a fourth area which are respectively positioned at two sides of the display area along a second direction, the first direction and the second direction are mutually vertical, the display panel also comprises a first power signal line and a second power signal line, and the first power signal line and the second power signal line are respectively used for transmitting power signals with different potentials to pixel units positioned in the display area. The first power signal line and the second power signal line are at least arranged in the first area and the third area, at least one layer of metal structure is arranged between the first power signal line and the second power signal line along the direction perpendicular to the display panel, and the first power signal line and the second power signal line are overlapped with the metal structure.
Along with the development of display technology, the size of the display panel gradually increases, and along with the increase of the size of the display panel, the design difficulty of the display panel gradually increases, and the requirement of a user on the display uniformity of the display panel is higher and higher. The display panel is provided with a power supply signal line for providing a power supply signal, the length of the power supply signal line is increased along with the increase of the size of the display panel, the line resistance of the power supply signal line is increased, and the increase of the size of the display panel also causes the increase of the number of pixel units in the display panel, so that the current flowing through the power supply signal line is increased, and further the IR Drop of the power supply signal line is serious, namely the near end and far end signal voltage difference relative to a signal input end on the power supply signal line is larger, the uniformity of the power supply signal on the power supply signal line is poorer, and further the display uniformity of the display panel is influenced.
According to the embodiment of the invention, the voltage difference between the near end and the far end of the first power supply signal line and the second power supply signal line relative to the driving chip is reduced, the uniformity of the power supply signals on the first power supply signal line and the second power supply signal line is improved, and the display uniformity of the display panel is further improved. In addition, the crosstalk between the first power supply signal line and the second power supply signal line is effectively reduced, the area of a non-display area occupied by the first power supply signal line and the second power supply signal line is reduced, and the realization of a narrow frame of the display panel is facilitated.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention, and fig. 2 is a schematic cross-sectional view along the direction BB' in fig. 1. In conjunction with fig. 1 and 2, the display panel includes a display area AA and a non-display area NAA surrounding the display area AA, the non-display area NAA includes a first area a1 and a third area A3 respectively located at both sides of the display area AA in a first direction XX 'and a second area a2 and a fourth area a4 respectively located at both sides of the display area AA in a second direction YY', the first direction XX 'and the second direction YY' being perpendicular to each other, where the first direction XX 'is exemplarily set to be a horizontal direction in fig. 1 and the second direction YY' is a vertical direction in fig. 1.
The display panel further includes a first power signal line 1 and a second power signal line 2, the first power signal line 1 and the second power signal line 2 are respectively used for transmitting power signals with different potentials to the pixel units located in the display area AA, for example, the first power signal line 1 can provide a positive power signal to the pixel units, the second power signal line 2 can provide a negative power signal to the pixel units, and the light emitting elements in the pixel units are driven to emit light by using a voltage difference of the power signals transmitted on the first power signal line 1 and the second power signal line 2, and the display panel realizes a display function.
Referring to fig. 1 and 2, the first power signal line 1 and the second power signal line 2 are disposed at least in the first area a1 and the third area A3, fig. 1 exemplarily provides that the first power signal line 1 and the second power signal line 2 are disposed in the first area a1 and the third area A3 and a portion of the fourth area a4, the fourth area a4 of the display panel is provided with a plurality of pads for soldering the driver chip or the flexible circuit board, the driver chip supplies the power signals to the display panel through the pads, that is, the pad 11 electrically connected to the first power signal line 1 and the pad 21 electrically connected to the second power signal line 2 are input terminals of the power signals of the first power signal line 1 and the second power signal line 2, respectively, which may be referred to as proximal ends of the first power signal line 1 and the second power signal line 2, and then along an extending direction of the first power signal line 1 and the second power signal line 2 in the first area a1 or the third area A3, the ends of the first power signal line 1 and the second power signal line 2 away from the proximal end are distal ends of the first power signal line 1 and the second power signal line 2, respectively.
Because the first power signal line 1 and the second power signal line 2 have the wire resistance, voltage drops exist on the first power signal line 1 and the second power signal line 2, and the larger the size of the display panel is, the more serious the voltage drops on the first power signal line 1 and the second power signal line 2 are, that is, the larger the voltage difference between the near end and the far end of the first power signal line 1 and the second power signal line 2 is, the larger the voltage difference between the far end pixel unit and the near end pixel unit which receive the first power signal and the second power signal is, which affects the display uniformity of the display panel.
By providing the first power supply signal line 1 and the second power supply signal line 2 at least in the first area a1 and the third area A3, the first power supply signal line 1 and the second power supply signal line 2 supply the first power supply signal and the second power supply signal, respectively, to the pixel cell powders in the first direction XX', and supply the power supply signals to the respective pixel cells with respect to routing of the power supply signal lines through the display area AA, the line widths of the first power supply signal line 1 and the second power supply signal line 2 located in the non-display area NAA can be effectively increased, illustratively, the line width of the first power supply signal line 1 and the line width of the second power supply signal line 2 can be set to be equal to or greater than 500 μm, thereby reducing the line resistances of the first power supply signal line 1 for transmitting the first power supply signal and the second power supply signal line 2 for transmitting the second power supply signal, reducing the voltage difference between the near end and the far end of the first power supply signal line 1 and the second power supply signal line 2, the display uniformity of the display panel is improved.
In addition, providing the first area a1 and the third area A3 with the first power signal line 1 and the second power signal line 2, relative to providing the first power signal line 1 and the second power signal line 2 only in the first area a1 or the third area A3, is advantageous to improve the uniformity of the power signals on the power signal lines electrically connected to the first power signal line 1 and the second power signal line 2, respectively, in the first direction XX' within the display area AA to further improve the display uniformity of the display panel.
With reference to fig. 1 and fig. 2, along a direction perpendicular to the display panel, at least one metal structure is disposed between the first power signal line 1 and the second power signal line 2, the first power signal line 1 and the second power signal line 2 both have an overlapping portion with the at least one metal structure, the at least one metal structure weakens a coupling effect between the first power signal line 1 and the second power signal line 2, thereby effectively reducing crosstalk between the first power signal line 1 and the second power signal line 2, and the first power signal line 1 and the second power signal line 2 both have an overlapping portion with the at least one metal structure, so that an area of a non-display area NAA occupied by the first power signal line 1 and the second power signal line 2 is reduced, which is beneficial for realizing a narrow frame of the display panel.
It should be noted that fig. 1 and fig. 2 only exemplarily show that the first power signal line 1 is located above the second power signal line 2, and the second power signal line 2 may also be located below the first power signal line 1, which is not limited in the embodiment of the present invention. In addition, fig. 2 only exemplarily shows the film layer arrangement relationship of the first region a1, and the film layer arrangement relationship of the third region A3 is the same as that of the first region a1 and is not separately illustrated.
Fig. 3 is a schematic top view of another display panel according to an embodiment of the present invention. As shown in fig. 3, the first power signal line 1 and the second power signal line 2 may be disposed around the display area AA, that is, the first area, the second area, the third area and the fourth area are all disposed with the first power signal line 1 and the second power signal line 2, such that along the second direction YY', the path of the power signal received by the remote pixel unit in the display area AA is transmitted to the second area a2 via the first area a1 and the third area A3 by the pads 11 and 12 of the fourth area a4, respectively, the first power signal line 1 and the second power signal line 2 in the second area a2 respectively provide the first power signal and the second power signal to the remote pixel unit in the display area AA, respectively, and since the line widths of the first power signal line 1 and the second power signal line 2 in the non-display area NAA can be effectively increased, the power signal is provided to each pixel unit with respect to the power signal by the routing of the display area AA, the voltage difference between the near end and the far end of the first power signal line 1 and the second power signal line 2 is reduced, the display uniformity of the display panel is improved, the first power signal line 1 and the second power signal line 2 in the non-display area NAA around the display panel are enabled to simultaneously provide the first power signal and the second power signal for the pixel units of the display area AA, the uniformity of transmission of the power signals in the display area AA along all directions is further improved, and the display uniformity of the display panel is further improved.
Alternatively, in conjunction with fig. 1 to 3, the display panel further includes gate driving circuits 3 respectively located in the first area a1 and the third area A3, the first power signal line 1 and the second power signal line 2 are respectively located on both sides of the gate driving circuits 3 in a direction perpendicular to the display panel, and the first power signal line 1 and the second power signal line 2 are located in the area 30 where the gate driving circuits 3 are located in the first direction XX'.
Specifically, with reference to fig. 1 to 3, each gate driving circuit 3 includes a plurality of cascaded shift registers, the gate driving circuit 3 is configured to provide gate driving signals to the pixel units through the horizontal gate driving signal lines, the gate driving circuits 3 are respectively disposed in the first area a1 and the third area A3, the same-stage shift registers in the gate driving circuits 3 on two sides synchronously output the gate driving signals to the same gate driving signal line, and compared with the gate driving circuit 3 disposed on one side, the gate driving circuits 3 disposed on one side are beneficial to improving uniformity of the gate driving signals transmitted on the gate driving signal lines, and further improving display uniformity of the display panel.
The gate driving circuit 3 may form a plurality of thin film transistor and capacitor structures using a plurality of metal layers and a plurality of insulating layers, to realize the gate driving function, the first power supply signal line 1 and the second power supply signal line 2 are disposed along a direction perpendicular to the display panel, respectively on both sides of the gate driving circuit 3, i.e., one of the first power supply signal line 1 and the second power supply signal line 2 is located above the uppermost metal layer of the gate driver circuit 3 and the other is located below the lowermost metal layer of the gate driver circuit 3, the metal structure in the gate driver circuit 3 may serve as the above-mentioned shield metal structure, that is, at least one metal structure disposed between the first power signal line 1 and the second power signal line 2 may be a metal structure in the gate driving circuit 3, so as to effectively reduce crosstalk between the first power signal line 1 and the second power signal line 2.
In addition, the first power signal line 1 and the second power signal line 2 are arranged along the direction perpendicular to the display panel along the first direction XX 'in the area 30 where the gate driving circuit 3 is located, and when the gate driving circuit 3 is arranged in the display panel, the arrangement of the first power signal line 1 and the second power signal line 2 does not affect the original widths of the first area a1 and the third area A3 along the first direction XX', which is beneficial to realizing a narrow frame of the display panel.
It should be noted that fig. 1 and fig. 3 schematically illustrate the first power signal line 1 and the second power signal line 2 for clarity, and the line widths of the first power signal line 1 and the second power signal line 2 are different from each other, and do not represent a limitation on the line width relationship between the first power signal line 1 and the second power signal line 2.
Alternatively, referring to fig. 1 to 3, a first dielectric layer 4 may be disposed between the first power signal line 1 and a metal layer of the gate driving circuit 3 adjacent to the first power signal line 1, a second dielectric layer 5 may be disposed between the second power signal line 2 and a metal layer of the gate driving circuit 3 adjacent to the second power signal line 2, and the thickness of the first dielectric layer 4 and the thickness of the second dielectric layer 5 are both greater than the thickness of an insulating layer of the gate driving circuit 3.
In particular, with reference to fig. 1 to 3, the gate driving circuit 3 includes a plurality of metal layers, and each metal layer includes a patterned metal structure, along a direction perpendicular to the display panel, between the first power signal line 1 and the second power signal line 2, at a position where the gate driver circuit 3 is not provided with a metal structure, the first power signal line 1 and the second power signal line 2 form a coupling capacitance, the thickness of the first dielectric layer 4 and the thickness of the second dielectric layer 5 are set to be larger than an insulating layer in the gate driver circuit 3, the thickness of the insulating layer between any two metal layers in the gate driving circuit 3 may be, for example, the thickness of the first dielectric layer 4 and the thickness of the second dielectric layer 5 may be set to be much greater than the thickness of one insulating layer in the gate driving circuit 3, which is beneficial to increase the thicknesses of the first dielectric layer 4 and the second dielectric layer 5, and further reduce crosstalk between the first power signal line 1 and the second power signal line 2.
Fig. 4 is a schematic cross-sectional view taken along direction DD' in fig. 2. In conjunction with fig. 2 and 4, in the second area a2 and the fourth area a4, a metal structure 30 is disposed between the first power signal line 1 and the second power signal line 2 in a direction perpendicular to the display panel, and vertical projections of the first power signal line 1, the second power signal line 2, and the metal structure 30 overlap.
Specifically, in conjunction with fig. 2 and 4, in the second region a2 and the fourth region a4, an insulating layer 40 is disposed between the metal structure 30 and the first power signal line 1, an insulating layer 50 is disposed between the metal structure 30 and the second power signal line 2, the metal structure 30 between the first power signal line 1 and the second power signal line 2 weakens the coupling effect between the first power signal line 1 and the second power signal line 2, the crosstalk between the first power signal line 1 and the second power signal line 2 of the second region a2 and the fourth region a4 is effectively reduced, and the vertical projections of the first power signal line 1, the second power signal line 2, and the metal structure 30 are disposed to overlap, so that the first power signal line 1, the second power signal line 2, and the metal structure 30 therebetween are disposed in the second region a2 and the fourth region a4 with a minimum layout area, the realization of the narrow frame of the display panel is facilitated.
For example, the metal structure 30 in the second area a2 and the fourth area a4 may be a single-layer metal structure or a multi-layer metal structure, and the metal structure 30 may be fabricated in the same layer as the metal layer in the gate driving circuit 3 or the metal layer in the pixel driving circuit in the display area AA, so as to simplify the manufacturing process of the display panel. It should be noted that fig. 2 only exemplarily shows the film layer arrangement relationship of the second region a2, and the film layer arrangement relationship of the fourth region a4 is similar to the film layer arrangement relationship of the second region a2 and is not separately illustrated.
Fig. 5 is a schematic cross-sectional structure view of a first region of a display panel according to an embodiment of the invention. With reference to fig. 1 to 5, the display panel may further include a first auxiliary trace 6 and a second auxiliary trace 7, the first auxiliary trace 6 and the first power signal line 1 are located at different layers, and the first power signal line 1 is electrically connected to the first auxiliary trace 6 through a via a1, the second auxiliary trace 7 and the second power signal line 2 are located at different layers, and the second power signal line 2 is electrically connected to the second auxiliary trace 7 through a via a 2. In addition, fig. 5 only exemplarily shows the film layer arrangement relationship of the first auxiliary trace 6 and the second auxiliary trace 7 in the first area a1, and the film layer arrangement relationship of the first auxiliary trace 6 and the second auxiliary trace 7 in the third area A3 is the same as the film layer arrangement relationship of the first auxiliary trace 6 and the second auxiliary trace 7 in the first area a1, and is not separately illustrated.
Fig. 6 is a schematic cross-sectional structure diagram of a second area of a display panel according to an embodiment of the invention, when the second area a2 and the fourth area a4 are provided with the first power signal line 1 and the second power signal line 2, as shown in fig. 6, the second area a2 and the fourth area a4 are also provided with the first auxiliary trace 6 and the second auxiliary trace 7, and similarly, in the second area a2 and the fourth area a4, the first auxiliary trace 6 and the first power signal line 1 are located at different layers and the first power signal line 1 is electrically connected to the first auxiliary trace 6 through a via a1, and the second auxiliary trace 7 and the second power signal line 2 are located at different layers and the second power signal line 2 is electrically connected to the second auxiliary trace through a 357 through a via a 2. In addition, fig. 6 only exemplarily shows the film layer arrangement relationship of the first auxiliary trace 6 and the second auxiliary trace 7 of the second area a2, and the film layer arrangement relationship of the first auxiliary trace 6 and the second auxiliary trace 7 of the fourth area a4 is the same as the film layer arrangement relationship of the first auxiliary trace 6 and the second auxiliary trace 7 of the second area a2, and is not separately illustrated.
Specifically, with reference to fig. 5 and fig. 6, an insulating layer 60 may be disposed between the first auxiliary trace 6 and the first power signal line 1, the first power signal line 1 is electrically connected to the first auxiliary trace 6 through a via a1 penetrating through the insulating layer 60, similarly, an insulating layer 70 may also be disposed between the second auxiliary trace 7 and the second power signal line 2, and the second power signal line 2 is electrically connected to the second auxiliary trace 7 through a via a2 penetrating through the insulating layer 70, so that the first auxiliary trace 6 is disposed to increase the line width of the trace for transmitting the first power signal, which is beneficial to reducing the line resistance of the trace for transmitting the first power signal, and similarly, the second auxiliary trace 7 is disposed to be beneficial to reducing the line resistance of the trace for transmitting the second power signal, which is beneficial to reducing the voltage drop between the proximal end and the distal end of the first power signal line 1 and the second power signal line 2, the uniformity of signal transmission on the first power signal line 1 and the second power signal line 2 is further improved, and the display uniformity of the display panel is improved.
It should be noted that the number and the positions of the electrical contacts of the first power signal line 1 and the first auxiliary trace 6, and the number and the positions of the electrical contacts of the second power signal line 2 and the second auxiliary trace 7 are not particularly limited in the embodiments of the present invention.
Alternatively, in combination with fig. 5 and 6, the first power signal line 1 overlaps with the vertical projection of the first auxiliary trace 6, and the second power signal line 2 overlaps with the vertical projection of the second auxiliary trace 7 along the direction perpendicular to the display panel. Specifically, when the first power signal line 1 and the second power signal line 2 are only disposed in the first area a1 and the third area A3 as shown in fig. 1, the first auxiliary trace 6 and the second auxiliary trace 7 are also disposed only in the first area a1 and the third area A3, and in the first area a1 and the third area A3, along a direction perpendicular to the display panel, a vertical projection of the first power signal line 1 overlaps a vertical projection of the first auxiliary trace 6, and a vertical projection of the second power signal line 2 overlaps a vertical projection of the second auxiliary trace 7. When the first power signal line 1 and the second power signal line 2 are disposed around the display area AA as shown in fig. 3, the first auxiliary trace 6 and the second auxiliary trace 7 are also disposed around the display area AA, and along a direction perpendicular to the display panel, a vertical projection of the first power signal line 1 and the first auxiliary trace 6 are overlapped, and a vertical projection of the second power signal line 2 and the second auxiliary trace 7 are overlapped.
The vertical projection of the first power signal line 1 and the first auxiliary line 6 are overlapped, and the vertical projection of the second power signal line 2 and the second auxiliary line 7 are overlapped, so that the first power signal line 1, the first auxiliary line 6, the second power signal line 2 and the second auxiliary line 7 occupy the non-display area NAA with the minimum area, and the realization of the narrow frame of the display panel is facilitated.
Alternatively, in conjunction with fig. 1 to 6, it may be arranged that the first power signal line 1 and the first auxiliary trace 6 are located on the same side of the at least one metal structure located between the first power signal line 1 and the second power signal line 2, the second power signal line 2 and the second auxiliary trace 7 are located on the same side of the at least one metal structure located between the first power signal line 1 and the second power signal line 2, that is, for the first region a1 and the third region 3, the first power signal line 1 and the first auxiliary trace 6 are located on the same side of the gate driving circuit 3, the second power signal line 2 and the second auxiliary trace 7 are located on the same side of the gate driving circuit 3, for the second region a2 and the fourth region a4, the first power signal line 1 and the first auxiliary trace 6 are located on the same side of the metal structure 30, the second power signal line 2 and the second auxiliary trace 7 are located on the same side of the metal structure 30, thus, the crosstalk between the trace for transmitting the first power signal and the trace for transmitting the second power signal is reduced to the maximum extent while the electrical connection relationship between the first power signal line 1 and the first auxiliary trace 6, and the electrical connection relationship between the second power signal line 2 and the second auxiliary trace 7 are facilitated.
It should be noted that the drawings of the embodiments of the present invention only show the sizes of the elements by way of example, and do not represent the actual sizes of the elements in the display panel.
The embodiment of the invention also provides a display device, and fig. 7 is a schematic structural diagram of the display device provided by the embodiment of the invention. As shown in fig. 7, the display device 20 includes the display panel 19 according to the above embodiment, and therefore the display device 20 according to the embodiment of the present invention also has the beneficial effects described in the above embodiment, which are not described herein again. The display device 20 may be a mobile phone, or may be an electronic device such as a computer or a wearable device, and the embodiment of the present invention does not limit the specific form of the display device.
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 illustrated 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 display device comprises a display area and a non-display area surrounding the display area, wherein the non-display area comprises a first area and a third area which are respectively positioned at two sides of the display area along a first direction, and a second area and a fourth area which are respectively positioned at two sides of the display area along a second direction; wherein the first direction and the second direction are perpendicular to each other;
a first power supply signal line and a second power supply signal line for transmitting power supply signals of different potentials to pixel units located in the display region, respectively;
the first power supply signal line and the second power supply signal line are arranged at least in the first area and the third area, at least one metal structure is arranged between the first power supply signal line and the second power supply signal line along the direction perpendicular to the display panel, and the first power supply signal line and the second power supply signal line are overlapped with the metal structure;
the first power supply signal line and the second power supply signal line each pass through the first region, the second region, and the third region in this order.
2. The display panel according to claim 1, wherein the first power supply signal line and the second power supply signal line are provided around the display region.
3. The display panel according to claim 1 or 2, characterized by further comprising: the first power signal line and the second power signal line are respectively located on two sides of the gate driving circuit along a direction perpendicular to the display panel, and the first power signal line and the second power signal line are located in a region where the gate driving circuit covers the non-display area along the first direction.
4. The display panel according to claim 3, wherein a first dielectric layer is provided between the first power source signal line and a metal layer of the gate driver circuit adjacent to the first power source signal line, wherein a second dielectric layer is provided between the second power source signal line and a metal layer of the gate driver circuit adjacent to the second power source signal line, and wherein a thickness of the first dielectric layer and a thickness of the second dielectric layer are both larger than a thickness of an insulating layer of the gate driver circuit.
5. The display panel according to claim 2, wherein a metal structure is provided between the first power supply signal line and the second power supply signal line in a direction perpendicular to the display panel in the second region and the fourth region, and vertical projections of the first power supply signal line, the second power supply signal line, and the metal structure overlap.
6. The display panel according to claim 1 or 2, wherein a line width of the first power supply signal line and a line width of the second power supply signal line are each equal to or greater than 500 μm.
7. The display panel according to claim 1 or 2, characterized by further comprising: the first auxiliary wiring and the first power signal line are positioned on different layers and are electrically connected with each other through a through hole; and the second auxiliary wiring and the second power signal line are positioned on different layers and are electrically connected through the through hole.
8. The display panel according to claim 7, wherein the first power signal line overlaps with a vertical projection of the first auxiliary trace and the second power signal line overlaps with a vertical projection of the second auxiliary trace along a direction perpendicular to the display panel.
9. The display panel according to claim 7, wherein the first power signal line and the first auxiliary trace are located on a same side of the at least one metal structure, and the second power signal line and the second auxiliary trace are located on a same side of the at least one metal structure.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN110310572B true CN110310572B (en) | 2022-01-28 |
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| EP4002337A4 (en) | 2020-05-22 | 2022-10-19 | BOE Technology Group Co., Ltd. | Display substrate, display panel, and display device |
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| JP3922374B2 (en) * | 2002-09-25 | 2007-05-30 | セイコーエプソン株式会社 | Electro-optical device, matrix substrate, and electronic apparatus |
| JP6476449B2 (en) * | 2014-12-16 | 2019-03-06 | 株式会社Ｊｏｌｅｄ | Display panel and method of manufacturing display panel |
| US9799602B2 (en) * | 2015-12-30 | 2017-10-24 | Taiwan Semiconductor Manufacturing Co., Ltd. | Integrated circuit having a staggered fishbone power network |
| CN105977260B (en) * | 2016-05-20 | 2019-02-12 | 京东方科技集团股份有限公司 | Power line structure, array substrate and display panel |
| US10217802B2 (en) * | 2016-05-31 | 2019-02-26 | Lg Display Co., Ltd. | Organic light-emitting display device with high resolution and high definition |
| CN107331338B (en) * | 2017-08-28 | 2021-08-17 | 京东方科技集团股份有限公司 | Array substrate, display device and detection method thereof |
| CN108878444B (en) * | 2018-06-07 | 2021-11-19 | 武汉天马微电子有限公司 | Display panel and display device |
| CN109389907B (en) * | 2018-12-11 | 2022-06-07 | 厦门天马微电子有限公司 | Display panel and display device |
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