CN-121982972-A - Display panel and display device

CN121982972ACN 121982972 ACN121982972 ACN 121982972ACN-121982972-A

Abstract

The application provides a display panel and a display device, wherein the display panel comprises a display area and a non-display area surrounding the display area, and the non-display area comprises a fan-out area; the fan-out area comprises a plurality of fan-out data lines, the plurality of fan-out data lines comprise first fan-out data lines and second fan-out data lines which are arranged on different metal layers, and the pitch of the first fan-out data lines is different from that of the second fan-out data lines. The scheme of the application can effectively improve the screen occupation ratio of the display panel.

Inventors

LIU BINGPING
LAN XUEXIN
YANG XIANYAN
SU SHAOWEI

Assignees

厦门天马光电子有限公司

Dates

Publication Date: 20260505
Application Date: 20260206

Claims (14)

1. A display panel, wherein the display panel comprises a display area and a non-display area surrounding the display area, the non-display area comprising a fan-out area; the fan-out area comprises a plurality of fan-out data lines, the fan-out data lines comprise first fan-out data lines and second fan-out data lines which are arranged on different metal layers, and the pitch of the first fan-out data lines is different from that of the second fan-out data lines.
2. The display panel according to claim 1, further comprising a substrate and a plurality of metal layers on one side of the substrate, each adjacent metal layer of the plurality of metal layers being spaced apart from each other by an insulating layer; The multi-layer metal layer comprises a first metal layer and a second metal layer, and the second metal layer is positioned on one side of the first metal layer away from the substrate; The display area comprises a grid line and a data line, wherein the grid line is positioned on the first metal layer, and the data line is positioned on the second metal layer; the first fan-out data line is positioned on the first metal layer, and the second fan-out data line is positioned on the second metal layer; the pitch of the first fan-out data lines is greater than the pitch of the second fan-out data lines.
3. The display panel of claim 1, wherein a linewidth of the first fan-out data line is different from a linewidth of the second fan-out data line.
4. A display panel according to claim 3, further comprising a substrate and a plurality of metal layers on one side of the substrate, adjacent ones of the plurality of metal layers being spaced apart from each other by an insulating layer; The multi-layer metal layer comprises a first metal layer and a second metal layer, and the second metal layer is positioned on one side of the first metal layer away from the substrate; The display area comprises a grid line and a data line, wherein the grid line is positioned on the first metal layer, and the data line is positioned on the second metal layer; the first fan-out data line is positioned on the first metal layer, and the second fan-out data line is positioned on the second metal layer; the line width of the first fan-out data line is larger than that of the second fan-out data line.
5. The display panel of claim 1, wherein the first fan-out data line and the second fan-out data line are each plural, and at least a portion of the second fan-out data line overlaps and does not completely overlap with the first fan-out data line in a direction perpendicular to the display panel.
6. The display panel of claim 1, further comprising a pixel array and a plurality of data lines in the display area, wherein the pixel array comprises a plurality of pixel units, the pixel units comprise a plurality of sub-pixels, and the data lines are arranged corresponding to the sub-pixel columns and connected with the fan-out data lines; The plurality of data lines corresponding to the pixel units comprise a first data line, a second data line and a third data line, and the second data line is positioned between the first data line and the third data line along the arrangement direction of the data lines; For the same pixel unit, the second data line is connected with one of the first fan-out data line and the second fan-out data line, and at least one of the first data line and the third data line is connected with the other of the first fan-out data line and the second fan-out data line.
7. The display panel according to claim 6, wherein the pixel array includes a first pixel unit, a second pixel unit, and a third pixel unit along an arrangement direction of the data lines, the second pixel unit being located between the first pixel unit and the third pixel unit; the second data line of the second pixel unit is connected with one of the first fan-out data line and the second fan-out data line, and the second data line of at least one of the first pixel unit and the third pixel unit is connected with the other of the first fan-out data line and the second fan-out data line.
8. The display panel of claim 6, wherein one of the pixel units corresponds to one of the fan-out data line groups, the fan-out data line groups are the fan-out data lines connected to the data line corresponding to one of the pixel units, and at least one of the fan-out data line groups corresponding to one of the pixel units and at least two of the pixel units adjacent to the pixel unit in the arrangement direction of the data lines has a different arrangement rule of a metal layer where the fan-out data line is located.
9. The display panel of claim 6, wherein one of the pixel units corresponds to one of a set of fan-out data lines, the set of fan-out data lines being the fan-out data lines connected to the data line corresponding to one of the pixel units; The fan-out data line groups are used as a period, the arrangement rules of the metal layers where the fan-out data lines of at least two fan-out data line groups are located are different in the same period, and the arrangement rules of the metal layers where the fan-out data lines of adjacent periods are located are the same.
10. The display panel of claim 9, further comprising a touch electrode and a touch signal line connected to the touch electrode, wherein the touch electrode is located in the display area, and the touch signal line extends from the display area to the fan-out area; the first fan-out data line and the data line connected with the first fan-out data line are positioned on different metal layers; The period includes at least two of the following: Along the arrangement direction of the data lines, a data line connected with the second fan-out data line is arranged between two data lines respectively connected with two adjacent first fan-out data lines, Along the arrangement direction of the data lines, two data lines respectively connected with two adjacent first fan-out data lines comprise a data line connected with the second fan-out data line and a touch signal line, and, And two data lines which are respectively connected with the two second fan-out data lines and one touch signal line are arranged between the two data lines which are respectively connected with the two adjacent first fan-out data lines along the arrangement direction of the data lines.
11. The display panel of claim 9, wherein the first fan-out data line is located in a different metal layer than the data line to which it is connected; in the same period, the number of the first fan-out data lines is smaller than the number of the second fan-out data lines.
12. The display panel according to any one of claims 1 to 11, further comprising a touch electrode and a touch signal line connected to the touch electrode, wherein the touch electrode is located in the display area, the touch signal line comprises a first portion and a second portion connected to each other, the first portion is located in the display area and connected to the touch electrode through a contact hole, and the second portion is located in the fan-out area; The second part of the touch signal line and the first fan-out data line are located on the same metal layer, and/or the second part of the touch signal line and the second fan-out data line are located on the same metal layer.
13. The display panel of claim 12, wherein at least one of the fan-out data lines is between second portions of adjacent ones of the touch signal lines.
14. A display device comprising the display panel according to any one of claims 1 to 13.

Description

Display panel and display device Technical Field The application relates to the field of display, in particular to a display panel and a display device. Background Large size displays have the advantage of more visual experience and commercial application than small size displays. For example, in visual experience, the method can promote the sense of immersion of users, display more content details and multitask processing, has better readability, and in commercial application, the advertising effect is more outstanding and the information display is more efficient. Accordingly, users are increasingly demanding large-screen display panels. Under the condition that the size of the panel display Screen is limited, the effective display area of the Screen can be improved by improving the Screen-to-Body Ratio (Screen-to-Body Ratio), and the visual experience of a user is improved. The screen ratio refers to the proportion of the effective display area of the screen to the total area of the front panel of the device, and for the display panel with the same size, the narrower the frame is, the higher the screen ratio is. In the existing display panel, the fan-out wiring occupies a larger area of a non-display area, and the narrow frame design of the display panel is not easy to realize. Disclosure of Invention The embodiment of the application provides a display panel and a display device, which are used for solving the problem that the area occupied by fanout wires in a non-display area is relatively large, improving the screen occupation ratio of the display panel and realizing the design of a narrow frame of the display panel. In one aspect, an embodiment of the present application provides a display panel, where the display panel includes a display area and a non-display area surrounding the display area, and the non-display area includes a fan-out area; the fan-out area comprises a plurality of fan-out data lines, the fan-out data lines comprise first fan-out data lines and second fan-out data lines which are arranged on different metal layers, and the pitch of the first fan-out data lines is different from that of the second fan-out data lines. On the other hand, the embodiment of the application also provides a display device which comprises the display panel. According to the display panel and the display device provided by the embodiment of the application, through the novel wiring design, the plurality of fan-out data lines of the fan-out area are arranged on different metal layers, the pitch capability of the different metal layers is fully utilized, the wiring pressure of the data line layers is reduced, the wiring quantity of the fan-out area is effectively improved, the fan-out area occupation ratio can be further compressed under the same panel size, and the screen occupation ratio of the display panel is further improved. Drawings In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art. Fig. 1 is a schematic plan view of a display panel according to an embodiment of the present application; FIG. 2 is an enlarged schematic view of the area S1 in FIG. 1; FIG. 3 is a schematic cross-sectional view taken along the direction A-A' in FIG. 2; FIG. 4 is a schematic view of a sectional structure along the direction B-B' in FIG. 1; Fig. 5 is a schematic plan view of another display panel according to an embodiment of the present application; FIG. 6 is an enlarged schematic view of the area S2 in FIG. 5; FIG. 7 is a schematic diagram illustrating a connection between data lines corresponding to different sub-pixels in a pixel unit and fan-out data lines according to an embodiment of the present application; FIG. 8 is another connection schematic diagram of the data lines and the fan-out data lines corresponding to different sub-pixels in the pixel unit according to the embodiment of the present application; fig. 9 is a schematic plan view of another display panel according to an embodiment of the present application; FIG. 10 is an enlarged schematic view of the area S3 in FIG. 9; FIG. 11 is a schematic diagram showing a connection structure between different pixel units and fan-out data lines in a fan-out data line group according to an embodiment of the present application; FIG. 12 is a schematic diagram showing another connection structure of different pixel units and fan-out data lines in the fan-out data line group according to an embodiment of the present application FIG. 13 is a schematic diagram showing several distribution structures of fan-out data lines and touch