CN118215350A

CN118215350A - Display panel and display device

Info

Publication number: CN118215350A
Application number: CN202410251180.4A
Authority: CN
Inventors: 许传志; 秦旭; 王欢; 张九占; 徐思维
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2024-03-05
Filing date: 2024-03-05
Publication date: 2024-06-18

Abstract

The application relates to the technical field of display, and discloses a display panel and a display device, wherein the display panel comprises: a first circuit layer and a connection metal layer. The first circuit layer includes a first signal line, a second signal line, and a third signal line, wherein the second signal line is disposed between the first signal line and the third signal line. The connection metal layer is arranged on the first side of the first circuit layer, the first signal wire is connected with the third signal wire through the connection metal layer, and the projection of the connection metal layer on the first circuit layer covers the first signal wire, the third signal wire and the area between the first signal wire and the third signal wire. The problem of electric signal transmission among the non-adjacent signal wires when the first signal wire, the second signal wire and the third signal wire are on the same plane can be solved by connecting the metal layers. Meanwhile, voltage consistency between the first signal line and the third signal line can be further enhanced by connecting the metal layers to transmit voltage.

Description

Display panel and display device

Technical Field

The application belongs to the technical field of display, and particularly relates to a display panel and a display device.

Background

With the development of technology, as one of important man-machine interaction devices contacting with people, the demands of people on the display are also increasing.

Disclosure of Invention

The application aims to provide a display panel and a display device, which aim to solve the problem of inconsistent brightness of pixel units caused by the limitation of circuit layout of a circuit board in the traditional display equipment.

A first aspect of an embodiment of the present application provides a display panel, including: a first circuit layer including a first signal line, a second signal line, and a third signal line; wherein the second signal line is disposed between the first signal line and the third signal line; and the connecting metal layer is arranged on the first side of the first circuit layer, the first signal wire is connected with the third signal wire through the connecting metal layer, and the projection of the connecting metal layer on the first circuit layer covers the first signal wire, the third signal wire and the area between the first signal wire and the third signal wire, wherein the connecting metal layer and the anode layer are arranged on the same layer.

In one embodiment, the first circuit layer further includes a fourth signal line, and the display panel further includes a second circuit layer; the second circuit layer is arranged on a second side of the first circuit layer, the second signal line is connected with the fourth signal line through the second circuit layer, and the second side and the first side are opposite sides.

In one embodiment, the display panel includes a display module, the first signal line and the second signal line are both used for being connected with a power module, the power module is used for outputting a driving voltage and an initializing voltage, the third signal line and the fourth signal line are both used for being connected with the display module, the first signal line and the third signal line are used for transmitting one of the driving voltage and the initializing voltage, and the second signal line and the fourth signal line are used for transmitting the other of the driving voltage and the initializing voltage.

In one embodiment, the connection metal layer includes a first connection portion, a second connection portion, and a third connection portion; the projection of the first connecting part on the first circuit layer covers the first signal line, the third signal line and the area between the first signal line and the third signal line, the second connecting part is arranged between the first signal line and the first connecting part, and the third connecting part is arranged between the third signal line and the first connecting part; the length of the contact portion of the first signal line and the second connection portion and the contact portion of the second connection portion and the first connection portion in the extending direction of the first signal line is greater than one half of the length of the first signal line; the length of the contact portion of the third signal line and the third connection portion and the contact portion of the third connection portion and the first connection portion in the extending direction of the third signal line is greater than one half of the length of the third signal line.

In one embodiment, the second circuit layer includes a plurality of fifth signal lines, and each of the fifth signal lines and the second signal lines and each of the fifth signal lines and the fourth signal lines are connected through vias; the projection of each fifth signal line on the first circuit layer is perpendicular to the second signal line and the first signal line, and the distance between every two adjacent fifth signal lines is equal.

In one embodiment, the fourth signal line is disposed on a side of the third signal line away from the second signal line.

In one embodiment, the power module is disposed on a side of the first signal line away from the second signal line, and the display module is disposed on a side of the fourth signal line away from the third signal line.

In one embodiment, the display module includes a plurality of pixel units, the first circuit layer further includes a plurality of sixth signal lines, the second circuit layer further includes a plurality of seventh signal lines, one end of each of the sixth signal lines is connected to a corresponding pixel unit, the other end of each of the sixth signal lines is connected to a corresponding fourth signal line, one end of each of the seventh signal lines is connected to a corresponding pixel unit, and the other end of each of the seventh signal lines is connected to a corresponding third signal line through a via hole.

In one embodiment, the fourth signal line is disposed between the third signal line and the second signal line.

In one embodiment, the power module is disposed on a side of the first signal line away from the second signal line, and the display module is disposed on a side of the third signal line away from the fourth signal line.

In one embodiment, the display module includes a plurality of pixel units, the first circuit layer further includes a plurality of sixth signal lines, the second circuit layer further includes a plurality of seventh signal lines, one end of each of the sixth signal lines is connected to a corresponding pixel unit, the other end of each of the sixth signal lines is connected to a corresponding third signal line, one end of each of the seventh signal lines is connected to a corresponding pixel unit, and the other end of each of the seventh signal lines is connected to a fourth signal line through a via hole.

A second aspect of the embodiments of the present application provides a display device, including a display panel as described above.

Compared with the prior art, the embodiment of the invention has the beneficial effects that: the problem of electric signal transmission among the non-adjacent signal wires when the first signal wire, the second signal wire and the third signal wire are on the same plane can be solved by connecting the metal layers. Meanwhile, voltage consistency between the first signal line and the third signal line can be further enhanced by connecting the metal layers to transmit voltage.

Drawings

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the application;

FIG. 2 is a schematic diagram of another structure of a display panel according to an embodiment of the application;

FIG. 3 is a schematic top view and a schematic cross-section of a metal connection layer according to an embodiment of the present application;

FIG. 4 is a top view and two schematic cross-sectional views of the display panel shown in FIG. 2;

FIG. 5 is a schematic diagram of a display panel according to an embodiment of the application;

FIG. 6 is a top view and two schematic cross-sectional views of the display panel shown in FIG. 5;

FIG. 7 is a top view of a display panel according to an embodiment of the application;

FIG. 8 is a top view of a display panel according to an embodiment of the application;

Fig. 9 is a schematic structural diagram of a display device according to an embodiment of the application.

The above figures illustrate: 10. a display panel; 20. a display device; 100. a first circuit layer; 110. a first signal line; 120. a second signal line; 130. a third signal line; 140. a fourth signal line; 200. connecting the metal layers; 210. a first connection portion; 220. a second connecting portion; 230. a third connecting portion; 300. a second circuit layer; 310. a fifth signal line; 320. a via hole; 400. a display module; 410. a sixth signal line; 420. a seventh signal line; 500. a power module; 510. a power signal line; 600. a demultiplexer.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

For the coupled pixel capacitor light-emitting pixel, the pixel needs to be lightened by an initialization voltage for controlling the light-emitting brightness in addition to a driving voltage, and the value of the driving current of the coupled pixel capacitor light-emitting pixel is determined by the received control signal and the initialization voltage, so that the value of the initialization voltage greatly influences the driving current and further influences the brightness of the pixel.

The circuit board is limited by the circuit layout of a conventional circuit board, under the condition that the number of layers of circuit layers for transmitting electric signals is limited, after receiving driving voltage and initializing voltage, the circuit board needs to bypass other devices arranged on the circuit board under the condition that the driving voltage and initializing voltage are not interfered with each other, so that the voltage values of different points on one transmission line are easy to be different, and finally, the initializing voltage values transmitted to each pixel have a certain difference, and each pixel cannot take the same initializing voltage as a reference to adjust brightness, so that the uniformity of the whole light emission is affected.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application, and for convenience of explanation, only the portions related to the present embodiment are shown, which are described in detail below:

The display panel 10 includes: a first circuit layer 100 and a connection metal layer 200.

The first circuit layer 100 includes a first signal line 110, a second signal line 120, and a third signal line 130, wherein the second signal line 120 is disposed between the first signal line 110 and the third signal line 130.

The connection metal layer 200 is disposed on the first side of the first circuit layer 100, the first signal line 110 is connected to the third signal line 130 through the connection metal layer 200, and the projection of the connection metal layer 200 on the first circuit layer 100 covers the first signal line 110, the third signal line 130, and the area between the first signal line 110 and the third signal line 130, wherein the connection metal layer 200 and the anode layer are disposed in the same layer.

The present embodiment can solve the problem of electric signal transmission between non-adjacent signal lines when the first signal line 110, the second signal line 120 and the third signal line 130 are on the same plane by connecting the metal layer 200, and the operation of the second signal line 120 is not affected when the first signal line 110 and the third signal line 130 mutually transmit electric signals. The first signal line 110 transmits an electric signal to the third signal line 130 through the connection metal layer 200 of a large area, and thus the uniformity of voltages on the third signal line 130 can be improved, as compared with the transmission of an electric signal through a line. The voltage uniformity between the first signal line 110 and the third signal line 130 can be further enhanced by transmitting the voltage through the connection metal layer 200.

When the first signal line 110 and the third signal line 130 are used for transmitting the voltages for controlling the brightness of the plurality of pixels, the brightness uniformity of each pixel can be improved, and finally the display effect can be improved.

As shown in fig. 2, in an embodiment, the first circuit layer 100 further includes a fourth signal line 140, and the display panel 10 further includes a second circuit layer 300. The position of the fourth signal line 140 in the first circuit layer 100 can be specifically set according to actual requirements.

The second circuit layer 300 is disposed at a second side of the first circuit layer 100, and the second signal line 120 is connected to the fourth signal line 140 through the second circuit layer 300. The second side and the first side may be any two opposite sides, and the present embodiment is not limited thereto, and in the following embodiments, the second side refers to a lower side, and the first side refers to an upper side, for convenience of description.

The transmission of the electrical signal between the second signal line 120 and the fourth signal line 140 may be achieved through the second circuit layer 300.

In an embodiment, the display panel 10 further includes a display module, the first signal line 110 and the second signal line 120 are each used for being connected to a power module, the power module is used for outputting a driving voltage and an initializing voltage, the third signal line 130 and the fourth signal line 140 are each used for being connected to the display module, the first signal line 110 and the third signal line 130 are used for transmitting one of the driving voltage and the initializing voltage, and the second signal line 120 and the fourth signal line 140 are used for transmitting the other of the driving voltage and the initializing voltage.

The power module may be an internal power circuit of the display panel 10 or an external power circuit. The power supply module is used for providing a driving voltage and an initializing voltage to lighten the display module, and the initializing voltage is used for controlling the brightness of the display module in cooperation with the corresponding control signal. The display module may be a liquid crystal display module or an Organic Light-Emitting Diode (OLED) display module.

Illustratively, in some embodiments, the first and third signal lines 110 and 130 are used to transmit an initialization voltage, and the second and fourth signal lines 120 and 140 are used to transmit a driving voltage.

It can be understood that, when the initialization voltage is used as one of the important signals for controlling the brightness of the display module, and different pixels of the display module obtain the initialization voltages from different positions on the third signal line 130, the connection metal layer 200 can keep the initialization voltages at different positions on the third signal line 130 consistent, so as to improve the overall light emitting uniformity of the display module.

It is understood that the materials of the second signal line 120, the first signal line 110, the fourth signal line 140, and the third signal line 130 are low-resistance conductive materials, for example, including one or more of Cu (copper), al (aluminum), tin (Tin), titanium aluminum titanium alloy. The first circuit layer 100 and the second circuit layer 300 further include an insulating layer for supporting and isolating each signal line, and the signal lines of different layers may be connected by a conductive medium (for example, connected by a via 320) in a vertical direction, and may be specifically configured according to actual needs, which is not described in detail herein.

In one embodiment, as shown in fig. 3, fig. 3 shows a top view of the connection metal layer 200 and a schematic cross-sectional view along A-A, and the connection metal layer 200 includes a first connection portion 210, a second connection portion 220, and a third connection portion 230. The projection of the first connection portion 210 on the first circuit layer 100 covers the first signal line 110, the third signal line 130, and the area between the first signal line 110 and the third signal line 130, the second connection portion 220 is disposed between the first signal line 110 and the first connection portion 210, and the third connection portion 230 is disposed between the third signal line 130 and the first connection portion 210.

The first connection portion 210 may be a plate-shaped structure to uniformly transmit the electrical signal, the second connection portion 220 and the third connection portion 230 may be strip-shaped structures with rectangular cross sections, and specific shapes of the first connection portion 210, the second connection portion 220 and the third connection portion 230 may be set according to actual requirements. The materials of the first, second and third connection parts 210, 220 and 230 are conductive metal materials of low resistance, for example, including one or more of Cu (copper), al (aluminum) and Tin (Tin).

In the case that the number of circuit layers of the display panel 10 is limited, additional conductive lines may be added by connecting the metal layers 200, and at the same time, the large-area first connection portion 210 has a small impedance, so that the loss of the electrical signal transmitted from the first signal line 110 to the third signal line 130 is minimized, and the voltages transmitted to the portions of the third signal line 130 can be kept uniform, so that the obtained voltages are the same regardless of which portion of the third signal line 130 is connected to each pixel of the display module, and thus the light emitting uniformity of the display module is ensured. The second connection portion 220 and the third connection portion 230 are used for supporting the first connection portion 210, so as to avoid the electric signal on the first connection portion 210 from affecting other circuits on the display panel 10.

In an embodiment, the length of the contact portion between the first signal line 110 and the second connection portion 220 and the contact portion between the second connection portion 220 and the first connection portion 210 in the extending direction of the first signal line 110 is greater than one half of the length of the first signal line 110. The length of the contact portion of the third signal line 130 with the third connection portion 230 and the contact portion of the third connection portion 230 with the first connection portion 210 in the extending direction of the third signal line 130 is greater than one half of the length of the third signal line 130.

It is understood that the longer the contact portion in the extending direction of the corresponding signal line, the more uniformly the electric signal can be transmitted to the third signal line 130, and the smaller the difference between the voltages of the respective portions of the third signal line 130.

In some embodiments, the length of the contact portion of the first signal line 110 and the second connection portion 220 and the contact portion of the second connection portion 220 and the first connection portion 210 in the extending direction of the first signal line 110 is equal to or approximately equal to the length of the first signal line 110. The length of the contact portion of the third signal line 130 with the third connection portion 230 and the contact portion of the third connection portion 230 with the first connection portion 210 in the extending direction of the third signal line 130 is equal to or approximately equal to the length of the third signal line 130. When the length of the contact portion is equal to the length of the corresponding signal line, the uniformity of the voltages of the respective portions on the third signal line 130 is the highest, and the difference between the voltages of the respective portions on the third signal line 130 is the smallest.

In an embodiment, as shown in fig. 4, fig. 4 shows a top view of the display panel 10, a schematic cross-sectional view along a section line B-B, and a schematic cross-sectional view along a section line C-C (the insulating layer connecting the metal layer 200 and the display panel 10 is not shown in the drawings), the second circuit layer 300 includes a plurality of fifth signal lines 310, and each of the fifth signal lines 310 and the second signal lines 120 and each of the fifth signal lines 310 and the fourth signal lines 140 are connected by vias 320. The voltage value on the entire fourth signal line 140 and the voltage value on the second signal line 120 can be kept uniform by the plurality of fifth signal lines 310 to enhance the uniformity of voltages supplied to the respective pixels of the display module 400.

In an embodiment, as shown in fig. 4, the projections of each fifth signal line 310 on the first circuit layer 100 are perpendicular to the second signal line 120 and the fourth signal line 140, and the intervals between the adjacent fifth signal lines 310 are equal. I.e., the respective fifth signal lines 310 are uniformly distributed along the extending directions of the second signal lines 120 and the fourth signal lines 140.

When the fifth signal lines 310 are perpendicular to the second signal line 120 and the fourth signal line 140, the length of each fifth signal line 310 is the shortest, the resulting impedance is the smallest, and the resulting loss when an electrical signal passes through the fifth signal line 310 is the smallest.

In one embodiment, as shown in fig. 4, the first signal line 110, the second signal line 120, the third signal line 130, and the fourth signal line 140 are parallel to each other.

When the respective signal lines are parallel to each other, the lengths of the respective fifth signal lines 310 between the second signal line 120 and the fourth signal line 140 may be maintained to be uniform, the second signal line 120 may more uniformly transmit an electrical signal to the fourth signal line 140, and the first signal line 110 may also more uniformly transmit an electrical signal to the third signal line 130 by connecting the metal layers 200.

In an embodiment, the display module 400 includes a plurality of pixel units, each of which is connected to the third signal line 130 and the fourth signal line 140, respectively, for receiving a driving voltage and an initializing voltage. The pixel unit can be a coupled pixel capacitor luminous pixel, and the pixel unit can control luminous brightness according to the received control signal and the initialization voltage. It will be appreciated that each pixel cell may be grouped into a matrix of pixels according to actual circumstances to display a corresponding image under control of the control signals.

It should be noted that the display panel 10 is provided with a display area and a fan-out area, the display module 400 is disposed in the display area, and the first signal line 110, the second signal line 120, the third signal line 130, the fourth signal line 140, the fifth signal line 310 and the connection metal layer 200 are all disposed in the fan-out area. It is understood that, to facilitate transmission of electrical signals and wiring design of the display panel 10, the fourth signal line 140 and the third signal line 130 are closer to the display module 400 than the second signal line 120 and the first signal line 110.

In some embodiments, the first signal line 110, the second signal line 120, the third signal line 130, the fourth signal line 140, the fifth signal line 310, and the connection metal layer 200 may be disposed at a lower bezel of the display panel 10.

The pixel units may be connected to the fourth signal line 140 and the third signal line 130 through corresponding signal lines, respectively, and different pixel units may be connected to different positions on the fourth signal line 140 and the third signal line 130, and since voltages on the fourth signal line 140 and the third signal line 130 have higher consistency, the driving voltage and the initializing voltage received by each pixel unit are substantially consistent.

In one embodiment, as shown in fig. 4, the fourth signal line 140 is disposed on a side of the third signal line 130 away from the second signal line 120.

In some embodiments, the power module 500 is disposed on a side of the first signal line 110 away from the second signal line 120, and the display module 400 is disposed on a side of the fourth signal line 140 away from the third signal line 130.

In the present embodiment, the first signal line 110, the second signal line 120, the third signal line 130, and the fourth signal line 140 are arranged in the order of the first signal line 110, the second signal line 120, the third signal line 130, and the fourth signal line 140. It is understood that the arrangement order of the first signal line 110, the second signal line 120, the third signal line 130 and the fourth signal line 140 may be specifically set according to actual requirements.

In an embodiment, as shown in fig. 4, the display module 400 includes a plurality of pixel units, the first circuit layer 100 further includes a plurality of sixth signal lines 410, the second circuit layer 300 further includes a plurality of seventh signal lines 420, one ends of the sixth signal lines 410 are connected to corresponding pixel units, the other ends of the sixth signal lines 410 are connected to the fourth signal lines 140, one ends of the seventh signal lines 420 are connected to corresponding pixel units, and the other ends of the seventh signal lines 420 are connected to the third signal lines 130 through the vias 320.

It will be appreciated that one sixth signal line 410 may transmit an electrical signal on the fourth signal line 140 to one pixel cell, and one seventh signal line 420 may transmit an electrical signal on the third signal line 130 to one pixel cell. The number of the sixth signal line 410 and the seventh signal line 420 may be set according to actual needs. The sixth signal line 410 and the seventh signal line 420 disposed at different circuit layers can transmit electric signals to the pixel unit while avoiding mutual interference between different electric signals.

In an embodiment, unlike the above-described embodiment, as shown in fig. 5 and 6, the fourth signal line 140 is disposed between the third signal line 130 and the second signal line 120.

In some embodiments, the power module 500 is disposed on a side of the first signal line 110 away from the second signal line 120, and the display module 400 is disposed on a side of the third signal line 130 away from the fourth signal line 140.

In the present embodiment, the first signal line 110, the second signal line 120, the third signal line 130, and the fourth signal line 140 are arranged in the order of the first signal line 110, the second signal line 120, the fourth signal line 140, and the third signal line 130.

In an embodiment, as shown in fig. 5 and 6, the display module 400 includes a plurality of pixel units, the first circuit layer 100 further includes a plurality of sixth signal lines 410, the second circuit layer 300 further includes a plurality of seventh signal lines 420, one ends of the sixth signal lines 410 are connected to corresponding pixel units, the other ends of the sixth signal lines 410 are connected to the third signal lines 130, one ends of the seventh signal lines 420 are connected to corresponding pixel units, and the other ends of the seventh signal lines 420 are connected to the fourth signal lines 140 through the vias 320. In some embodiments, the other end of the seventh signal line 420 may also be connected to the fourth signal line 140 by sharing the same via 320 with the fifth signal line 310.

It can be understood that, since the fourth signal line 140 is disposed between the third signal line 130 and the second signal line 120 in the present embodiment, the fourth signal line 140 cannot be directly connected to the display module 400 through the first circuit layer 100, and can only be connected to the display module 400 by bypassing the third signal line 130 through the seventh signal line 420 of the second circuit layer 300, thereby transmitting an electrical signal to the pixel unit.

In an embodiment, the fourth signal line 140 and the third signal line 130 are parallel to one of the edges of the display module 400 or parallel to one of the rows of the pixel matrix in the display module 400, so that when different pixel units of the display module 400 are connected to different positions on the fourth signal line 140 and the third signal line 130, the lengths of the conductive paths between the signal lines and the different pixel units can be kept as uniform as possible, and the light emitting uniformity of the display module 400 is improved.

In an embodiment, as shown in fig. 7, fig. 7 shows a top view of a display panel 10 (the metal layer 200 and the insulating layer of the display panel 10 are not shown in the drawings), the second signal line 120 and the first signal line 110 may be connected to the power module 500 through corresponding power signal lines 510, and the power signal lines 510 may be perpendicular to the second signal line 120 or the first signal line 110 to form an L-shaped line or a T-shaped line. The power signal line 510 may be disposed on the first circuit layer 100 or the second circuit layer 300, and may be specifically disposed according to actual requirements.

In one embodiment, as shown in fig. 7, the display panel 10 includes a plurality of second signal lines 120 and a plurality of first signal lines 110. By providing the plurality of second signal lines 120 and the plurality of first signal lines 110, it is possible to avoid the problem that the second signal lines 120 or the first signal lines 110 are too long, resulting in uneven voltages on the second signal lines 120 or the first signal lines 110.

In an embodiment, as shown in fig. 8, fig. 8 shows a top view of a display panel 10 (the metal layer 200 and the insulating layer of the display panel 10 are not shown in the drawings), the display panel 10 further includes a plurality of demultiplexers 600 (Demux), and each demultiplexer 600 is disposed between two adjacent fifth signal lines 310. Specifically, each of the demultiplexers 600 is disposed at the second circuit layer 300, and the demultiplexers 600 are used to transmit control signals to the corresponding pixel units.

It will be appreciated that the transmission of electrical signals between the signal lines may be accomplished by bypassing the demultiplexer 600 disposed on the second circuit layer 300 through the fifth signal line 310 and the connection metal layer 200. Meanwhile, other electronic devices may be disposed between adjacent two fifth signal lines 310.

In some embodiments, at least one demultiplexer 600 is disposed between two adjacent fifth signal lines 310.

In an embodiment, the display panel 10 further includes a substrate disposed on a side of the second circuit layer 300 away from the first circuit layer 100. The substrate base plate serves to support the first circuit layer 100, the second circuit layer 300, and the connection metal layer 200.

Fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present application, and for convenience of explanation, only the portions related to the present embodiment are shown, and the details are as follows:

The display device 20 may be a computer, a television, a tablet, a mobile phone, a mobile terminal, a wearable device, etc., and the display device 20 includes the display panel 10 according to any one of the above embodiments.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. A display panel, comprising:

a first circuit layer including a first signal line, a second signal line, and a third signal line; wherein the second signal line is disposed between the first signal line and the third signal line; and

The connection metal layer is arranged on the first side of the first circuit layer, the first signal line is connected with the third signal line through the connection metal layer, the projection of the connection metal layer on the first circuit layer covers the first signal line, the third signal line and the area between the first signal line and the third signal line, and the connection metal layer and the anode layer are arranged on the same layer.

2. The display panel of claim 1, wherein the first circuit layer further comprises a fourth signal line, the display panel further comprising a second circuit layer;

the second circuit layer is arranged on a second side of the first circuit layer, the second signal line is connected with the fourth signal line through the second circuit layer, and the second side and the first side are opposite sides.

3. The display panel according to claim 2, further comprising a display module, wherein the first signal line and the second signal line are each for connection to a power supply module for outputting a driving voltage and an initializing voltage, wherein the third signal line and the fourth signal line are each for connection to the display module, wherein the first signal line and the third signal line are each for transmitting one of the driving voltage and the initializing voltage, and wherein the second signal line and the fourth signal line are each for transmitting the other of the driving voltage and the initializing voltage.

4. The display panel of any one of claims 1 to 3, wherein the connection metal layer includes a first connection portion, a second connection portion, and a third connection portion;

The projection of the first connecting part on the first circuit layer covers the first signal line, the third signal line and the area between the first signal line and the third signal line, the second connecting part is arranged between the first signal line and the first connecting part, and the third connecting part is arranged between the third signal line and the first connecting part;

The length of the contact portion of the first signal line and the second connection portion and the contact portion of the second connection portion and the first connection portion in the extending direction of the first signal line is greater than one half of the length of the first signal line;

The length of the contact portion of the third signal line and the third connection portion and the contact portion of the third connection portion and the first connection portion in the extending direction of the third signal line is greater than one half of the length of the third signal line.

5. A display panel according to claim 2 or 3, wherein the second circuit layer includes a plurality of fifth signal lines, each of the fifth signal lines and the second signal lines and each of the fifth signal lines and the fourth signal lines being connected by vias;

the projection of each fifth signal line on the first circuit layer is perpendicular to the second signal line and the fourth signal line, and the distance between every two adjacent fifth signal lines is equal.

6. The display panel according to claim 3, wherein the fourth signal line is provided on a side of the third signal line away from the second signal line;

Preferably, the power module is disposed on a side of the first signal line away from the second signal line, and the display module is disposed on a side of the fourth signal line away from the third signal line.

7. The display panel according to claim 6, wherein the display module includes a plurality of pixel units, the first circuit layer further includes a plurality of sixth signal lines, the second circuit layer further includes a plurality of seventh signal lines, one ends of the sixth signal lines are connected to the corresponding pixel units, the other ends of the sixth signal lines are connected to the fourth signal lines, one ends of the seventh signal lines are connected to the corresponding pixel units, and the other ends of the seventh signal lines are connected to the third signal lines through vias.

8. The display panel according to claim 3, wherein the fourth signal line is provided between the third signal line and the second signal line;

Preferably, the power module is disposed on a side of the first signal line away from the second signal line, and the display module is disposed on a side of the third signal line away from the fourth signal line.

9. The display panel according to claim 8, wherein the display module includes a plurality of pixel units, the first circuit layer further includes a plurality of sixth signal lines, the second circuit layer further includes a plurality of seventh signal lines, one ends of the sixth signal lines are connected to the corresponding pixel units, the other ends of the sixth signal lines are connected to the third signal lines, one ends of the seventh signal lines are connected to the corresponding pixel units, and the other ends of the seventh signal lines are connected to the fourth signal lines through vias.

10. A display device comprising the display panel according to any one of claims 1 to 9.