Display panel

Abstract

According to the display panel, at least one part of a first constant-voltage signal line is arranged in a first display sub-area, a plurality of first redundant connecting lines are arranged in the first display sub-area, one end of each first redundant connecting line is electrically connected with the first constant-voltage signal line located in the first display sub-area, and the other end of each first redundant connecting line is exposed; according to the display panel, the actual width of the first constant-voltage signal line originally located in the lower frame area is reduced, but the equivalent width of the first constant-voltage signal line is not reduced, and compared with a conventional scheme that the first constant-voltage signal line is arranged in the lower frame area, the width of the lower frame area of the display panel is increased; according to the display panel, the width of the second constant-voltage signal line located in the lower frame area is increased, so that the electric quantity density borne by the second constant-voltage signal line is increased, and when the display panel displays in the highlight mode, the situation that the display panel displays abnormally due to the fact that heat of the lower frame area of the display panel is too high can be avoided.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to a display panel. Background Art

[0002] With the development of OLED (Organic Light-Emitting Diode) display panel technology, the lower border of the OLED display panel has become increasingly narrow, and the width of the power line located in the lower border area of the OLED display panel has also become smaller and smaller. When the OLED display panel displays in a high-brightness mode, a large amount of heat is easily generated in the lower border area of the OLED display panel, resulting in abnormal display of the OLED display panel. Summary of the Invention

[0003] Embodiments of this application provide a display panel to improve the problem of abnormal display of the display panel.

[0004] Embodiments of this application provide a display panel, including a display area and a lower border area located on one side of the display area. The display area includes a first display sub-area and a second display sub-area. The first display sub-area is located between the lower border area and the second display sub-area. The display panel further includes:

[0005] Multiple data signal lines, the multiple data signal lines are arranged at intervals in a first direction, the data signal lines extend along a second direction, and the first direction intersects with the second direction;

[0006] A first constant voltage signal line, at least a part of the first constant voltage signal line is located in the first display sub-area, and the first constant voltage signal line located in the first display sub-area extends along the first direction;

[0007] A second constant voltage signal line, a part of the second constant voltage signal line is located in the lower border area, and the second constant voltage signal line located in the second display sub-area extends along the first direction;

[0008] Multiple first redundant connection lines, the multiple first redundant connection lines are located in the first display sub-area, the multiple first redundant connection lines are spaced at intervals in the second direction, the first redundant connection lines extend along the first direction, and one end of the first redundant connection line is electrically connected to the first constant voltage signal line located in the first display sub-area, and the other end of the first redundant connection line is bare;

[0009] Wherein, the voltage input to the first constant voltage signal line is greater than the voltage input to the second constant voltage signal line.

[0010] Further, the display panel further includes a source driver, a plurality of first data connection lines, and a plurality of second data connection lines. The source driver is located in the lower border area. A part of the first data connection lines is located in the first display sub-region, and the second data connection lines extend to the second display sub-region. One end of the first data connection lines is electrically connected to the source driver, and the other end of the first data connection lines passes through the first display sub-region and is electrically connected to one end of the second data connection lines. The other end of the second data connection lines is electrically connected to the data signal line;

[0011] Wherein, the first data connection lines extend along the second direction, and the second data connection lines extend along the first direction.

[0012] Further, the length of the first data connection lines located in the lower border area is greater than the length of the first data connection lines located in the first display sub-region, and the width of the second constant voltage signal lines located in the lower border area is greater than the width of the first constant voltage signal lines located in the first display sub-region.

[0013] Further, the display panel further includes a side border area. A part of the second constant voltage signal lines is located in the side border area. Wherein, the width of the second constant voltage signal lines located in the lower border area is greater than the width of the second constant voltage signal lines located in the side border area.

[0014] Further, the display panel further includes a plurality of second redundant connection lines and a plurality of third redundant connection lines. The plurality of second redundant connection lines are spaced at intervals in the second direction, and the second redundant connection lines extend along the first direction. The plurality of third redundant connection lines are spaced at intervals in the first direction, and the third redundant connection lines extend along the second direction.

[0015] Further, one end of the second redundant connection lines is electrically connected to the second constant voltage signal lines, and the other end of the second redundant connection lines is exposed. One end of the third redundant connection lines is electrically connected to the second constant voltage signal lines, and the other end of the third redundant connection lines is exposed.

[0016] Further, the length of the second data connection lines on the side far from the lower border area is greater than the length of the second data connection lines on the side close to the lower border area.

[0017] Further, the length of the first data connection lines on the side close to the middle area of the display area is greater than the length of the first data connection lines on the side far from the middle area of the display area.

[0018] Further, in the top view of the display panel, the first constant voltage signal line is located within the first display sub-region.

[0019] Further, in the top view of the display panel, a part of the first constant voltage signal line is located within the first display sub-region, and another part of the first constant voltage signal line is located within the lower border region.

[0020] Advantages of the present application:

[0021] The present application provides a display panel. By disposing at least a part of the first constant voltage signal line within the first display sub-region, a plurality of the first redundant connection lines are disposed within the first display sub-region, and one end of the first redundant connection line is electrically connected to the first constant voltage signal line located within the first display sub-region, and the other end of the first redundant connection line is exposed, and the voltage input to the first constant voltage signal line is greater than the voltage input to the second constant voltage signal line. That is, the first constant voltage signal line 200 originally located in the lower border region BB is disposed within the first display sub-region AA1 of the display region AA, so that the actual width of the first constant voltage signal line originally located in the lower border region is reduced, but the equivalent width of the first constant voltage signal line does not decrease. Compared with the conventional solution of disposing the first constant voltage signal line in the lower border region, the width of the lower border region of the display panel is increased, which is beneficial to increasing the width of the second constant voltage signal line located within the lower border region, thereby facilitating an increase in the power density carried by the second constant voltage signal line. When the display panel is displayed in the high-brightness mode, it is possible to avoid abnormal display of the display panel caused by excessive heat in the lower border region of the display panel. Description of the Drawings

[0022] Figure 1 is a schematic diagram of the display panel of the present application;

[0023] Figure 2 is Figure 1 a cross-sectional view of the display panel shown at position D;

[0024] Figure 3 is a schematic diagram of the connection of the first data connection line and the second data connection line of the display panel of the present application through a via hole.

[0025] Description of the Reference Numerals:

[0026] 100 - data signal line; 200 - first constant voltage signal line; 300 - second constant voltage signal line; 400 - first redundant connection line; 500 - source driver; 600 - first data connection line; 700 - second data connection line; 800 - second redundant connection line; 900 - third redundant connection line; 1000 - scan line.

[0027] 101 - Substrate; 102 - First insulating layer, 103 - First metal layer, 104 - Second insulating layer, 105 - Second metal layer; 106 - Via hole. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. The technical solutions described below are only used to explain and illustrate the idea of the present application, and should not be regarded as a limitation on the protection scope of the present application.

[0029] In addition, terms such as "first", "second" and similar words do not denote any order, quantity or importance, but are only used to distinguish different technical features. The term "a plurality of" and similar words mean two or more, unless otherwise clearly defined.

[0030] An embodiment of the present application provides a display panel, referring to Figure 1 , including a display area AA and a lower border area BB located on one side of the display area AA. The display area AA includes a first display sub - area AA1 and a second display sub - area AA2. The first display sub - area AA1 is located between the lower border area BB and the second display sub - area AA2. The display panel further includes a plurality of data signal lines 100, a first constant - voltage signal line 200, a second constant - voltage signal line 300, and a plurality of first redundant connection lines 400.

[0031] Specifically, the plurality of data signal lines 100 are arranged at intervals in a first direction X, the data signal lines 100 extend along a second direction Y, and the first direction X intersects with the second direction Y; at least a part of the first constant - voltage signal line 200 is located in the first display sub - area AA1, and the first constant - voltage signal line 200 located in the first display sub - area AA1 extends along the first direction X; a part of the second constant - voltage signal line 300 is located in the lower border area BB, and the second constant - voltage signal line 300 located in the second display sub - area AA2 extends along the first direction X; the plurality of first redundant connection lines 400 are located in the first display sub - area AA1, the plurality of first redundant connection lines 400 are spaced at intervals in the second direction Y, the first redundant connection lines 400 extend along the first direction X, and one end of the first redundant connection line 400 is electrically connected to the first constant - voltage signal line 200 located in the first display sub - area AA1, and the other end of the first redundant connection line 400 is exposed; wherein, the voltage input to the first constant - voltage signal line 200 is greater than the voltage input to the second constant - voltage signal line 300.

[0032] With the development of OLED display panel technology, the lower border of the OLED display panel is getting narrower and narrower, and the width of the power line located in the lower border area BB of the OLED display panel is also getting smaller and smaller. When the OLED display panel is displayed in the high-brightness mode, a large amount of heat is easily generated in the lower border area BB of the OLED display panel, resulting in abnormal display of the OLED display panel. Therefore, in the technical solution of this application, at least a part of the first constant voltage signal line 200 is arranged in the first display sub-region AA1, a plurality of the first redundant connection lines 400 are arranged in the first display sub-region AA1, and one end of the first redundant connection line 400 is electrically connected to the first constant voltage signal line 200 located in the first display sub-region AA1, and the other end of the first redundant connection line 400 is exposed, and the voltage input to the first constant voltage signal line 200 is greater than the voltage input to the second constant voltage signal line 300, that is, the first constant voltage signal line 200 originally located in the lower border area BB is arranged in the first display sub-region AA1 of the display area AA, so that the actual width of the first constant voltage signal line 200 originally located in the lower border area BB is reduced, but the equivalent width of the first constant voltage signal line 200 does not change. Compared with the conventional solution of arranging the first constant voltage signal line 200 in the lower border area BB, the width of the lower border area BB of the display panel is increased, which is beneficial to increasing the width of the second constant voltage signal line 300 located in the lower border area BB, thereby facilitating increasing the power density carried by the second constant voltage signal line 300. When the display panel is displayed in the high-brightness mode, it is possible to avoid abnormal display of the display panel caused by excessive heat in the lower border area BB of the display panel.

[0033] In this embodiment, referring to Figure 1 , the display panel further includes a plurality of scan lines 1000, the plurality of scan lines 1000 are spaced in the second direction Y, and the scan lines 1000 extend in the first direction X.

[0034] In this embodiment, the first direction X is the row direction of the display panel, and the second direction Y is the column direction of the display panel.

[0035] In this embodiment, referring to Figure 1, the display panel further includes a source driver 500, a plurality of first data connection lines 600, and a plurality of second data connection lines 700. The source driver 500 is located in the lower border area BB. A part of the first data connection lines 600 is located in the first display sub-region AA1. The second data connection lines 700 extend to the second display sub-region AA2. One end of the first data connection lines 600 is electrically connected to the source driver 500. The other end of the first data connection lines 600 passes through the first display sub-region AA1 and is electrically connected to one end of the second data connection lines 700. The other end of the second data connection lines 700 is electrically connected to the data signal line 100. Among them, the first data connection lines 600 extend along the second direction Y, and the second data connection lines 700 extend along the first direction X. By providing that the display panel further includes a source driver 500, a plurality of first data connection lines 600, and a plurality of second data connection lines 700, the source driver 500 is located in the lower border area BB, a part of the first data connection lines 600 is located in the first display sub-region AA1, the second data connection lines 700 extend to the second display sub-region AA2, one end of the first data connection lines 600 is electrically connected to the source driver 500, the other end of the first data connection lines 600 passes through the first display sub-region AA1 and is electrically connected to one end of the second data connection lines 700, the other end of the second data connection lines 700 is electrically connected to the data signal line 100, and among them, the first data connection lines 600 extend along the second direction Y, and the second data connection lines 700 extend along the first direction X, it is ensured that the data signal output by the source driver 500 can be transmitted to the data signal line 100 in the display area AA through the first data connection lines 600 and the second data connection lines 700.

[0036] In this embodiment, referring to Figure 3 , the first data connection lines 600 and the second data connection lines 700 are located in different layers. Among them, the second data connection lines 700 are electrically connected to the first data connection lines 600 through vias 106 penetrating between the film layer where the second data connection lines 700 are located and the film layer where the first data connection lines 600 are located.

[0037] In this embodiment, the length of the first data connection line 600 located within the lower border area BB is greater than the length of the first data connection line 600 located within the first display sub-area AA1, and the width of the second constant voltage signal line 300 located within the lower border area BB is greater than the width of the first constant voltage signal line 200 located within the first display sub-area AA1. By setting the length of the first data connection line 600 located within the lower border area BB to be greater than the length of the first data connection line 600 located within the first display sub-area AA1, and the width of the second constant voltage signal line 300 located within the lower border area BB to be greater than the width of the first constant voltage signal line 200 located within the first display sub-area AA1, compared with the conventional solution of setting the width of the second constant voltage signal line 300 to be the same as the width of the first constant voltage signal line 200, the width of the second constant voltage signal line 300 located within the lower border area BB is increased, thereby increasing the power density carried by the second constant voltage signal line 300. When the display panel is displayed in the high-brightness mode, it is possible to avoid abnormal display of the display panel caused by excessive heat in the lower border area BB of the display panel.

[0038] In this embodiment, referring to Figure 1 , the display panel further includes a side border area CC, and a part of the second constant voltage signal line 300 is located within the side border area CC. Among them, the width of the second constant voltage signal line 300 located within the lower border area BB is greater than the width of the second constant voltage signal line 300 located within the side border area CC. By setting that the display panel further includes a side border area CC, and a part of the second constant voltage signal line 300 is located within the side border area CC, and the width of the second constant voltage signal line 300 located within the lower border area BB is greater than the width of the second constant voltage signal line 300 located within the side border area CC, compared with the conventional solution of setting the widths of the second constant voltage signal lines 300 in the side border area and the lower border area BB to be the same, the width of the second constant voltage signal line 300 located within the lower border area BB is increased, thereby increasing the power density carried by the second constant voltage signal line 300. When the display panel is displayed in the high-brightness mode, it is possible to avoid abnormal display of the display panel caused by excessive heat in the lower border area BB of the display panel.

[0039] In this embodiment, referring to Figure 1, the display panel further includes a plurality of second redundant connection lines 800 and a plurality of third redundant connection lines 900. The plurality of second redundant connection lines 800 are spaced apart in the second direction Y, and the second redundant connection lines 800 extend along the first direction X. The plurality of third redundant connection lines 900 are spaced apart in the first direction X, and the third redundant connection lines 900 extend along the second direction Y. By providing that the display panel further includes a plurality of second redundant connection lines 800 and a plurality of third redundant connection lines 900, the plurality of second redundant connection lines 800 are spaced apart in the second direction Y, the second redundant connection lines 800 extend along the first direction X, the plurality of third redundant connection lines 900 are spaced apart in the first direction X, and the third redundant connection lines 900 extend along the second direction Y, the wiring density of different regions of the display area AA can be made close to or consistent, thereby improving the flatness of different regions of the display area AA of the display panel.

[0040] In this embodiment, referring to Figure 1 , one end of the second redundant connection line 800 is electrically connected to the second constant voltage signal line 300, and the other end of the second redundant connection line 800 is exposed. One end of the third redundant connection line 900 is electrically connected to the second constant voltage signal line 300, and the other end of the third redundant connection line 900 is exposed. By providing that one end of the second redundant connection line 800 is electrically connected to the second constant voltage signal line 300, the other end of the second redundant connection line 800 is exposed, one end of the third redundant connection line 900 is electrically connected to the second constant voltage signal line 300, and the other end of the third redundant connection line 900 is exposed, the impedance of the second constant voltage signal line 300 can be reduced, thereby reducing the voltage drop of the second constant voltage signal line 300 and improving the stability of signal transmission.

[0041] In this embodiment, referring to Figure 1 , the length of the second data connection line 700 on the side away from the lower border area BB is greater than the length of the second data connection line 700 on the side close to the lower border area BB.

[0042] In this embodiment, referring to Figure 1 , the length of the first data connection line 600 on the side close to the middle area of the display area AA is greater than the length of the first data connection line 600 on the side away from the middle area of the display area AA.

[0043] In this embodiment, in the top view of the display panel, the first constant voltage signal line 200 is located within the first display sub-area AA1.

[0044] In this embodiment, in a top view of the display panel, a part of the first constant voltage signal line 200 is located within the first display sub-region AA1, and another part of the first constant voltage signal line 200 is located within the lower border region BB.

[0045] In this embodiment, referring to Figure 2 , Figure 3 , the display panel includes a substrate 101, a first insulating layer 102 disposed on the substrate 101, a first metal layer 103 disposed on the first insulating layer 102, a second insulating layer 104 disposed on the first insulating layer 102, and the second insulating layer 104 covers the first metal layer 103 and a second metal layer 105 disposed on the second insulating layer 104.

[0046] In this embodiment, referring to Figure 2 , Figure 3 , the first constant voltage signal line 200, the second constant voltage signal line 300, and the first data connection line 600 are all located on the first metal layer 103.

[0047] In this embodiment, referring to Figure 2 , Figure 3 , the second data connection line 700 is located on the second metal layer 105.

[0048] The above has described in detail the specific embodiments of the present application. The above-described embodiments disclosed in the present application are only the preferred embodiments of the present application. For those of ordinary skill in the art, many variations and improvements can be made without departing from the concept of the present application. These variations and improvements all fall within the protection scope defined by the claims of the present application.

Claims

1. A display panel, characterized in that: The display panel includes a display area and a lower frame area located at one side of the display area, the display area includes a first display sub-area and a second display sub-area, the first display sub-area is located between the lower frame area and the second display sub-area, and the display panel also includes: A plurality of data signal lines, wherein the plurality of data signal lines are arranged at intervals in a first direction, and the data signal lines extend along a second direction, and the first direction intersects with the second direction; a first constant voltage signal line, at least a portion of which is located in the first display sub-area, and the first constant voltage signal line located in the first display sub-area extends along the first direction; a second constant voltage signal line, a portion of which is located in the lower frame area, and the second constant voltage signal line located in the second display sub-area extends along the first direction; a plurality of first redundant connection lines, the plurality of first redundant connection lines are located in the first display sub-area, the plurality of first redundant connection lines are spaced apart in the second direction, the first redundant connection lines extend along the first direction, one end of the first redundant connection line is electrically connected to the first constant voltage signal line located in the first display sub-area, and the other end of the first redundant connection line is exposed; The voltage input to the first constant voltage signal line is greater than the voltage input to the second constant voltage signal line.

2. The display panel according to claim 1, characterized in that: The display panel further includes a source driver, a plurality of first data connection lines, and a plurality of second data connection lines, wherein the source driver is located in the lower frame area, a portion of the first data connection lines is located in the first display sub-area, the second data connection lines extend to the second display sub-area, one end of the first data connection lines is electrically connected to the source driver, the other end of the first data connection lines passes through the first display sub-area and is electrically connected to one end of the second data connection lines, and the other end of the second data connection lines is electrically connected to the data signal line; The first data connection line extends along the second direction, and the second data connection line extends along the first direction.

3. The display panel according to claim 2, characterized in that: The length of the first data connection line in the lower frame area is greater than that of the first data connection line in the first display sub-area, and the width of the second constant voltage signal line in the lower frame area is greater than that of the first constant voltage signal line in the first display sub-area.

4. The display panel according to claim 1, characterized in that: The display panel also includes a side frame area, and a portion of the second constant voltage signal line is located in the side frame area, wherein the width of the second constant voltage signal line located in the lower frame area is greater than the width of the second constant voltage signal line located in the side frame area.

5. The display panel according to claim 1, characterized in that: The display panel also includes a plurality of second redundant connection lines and a plurality of third redundant connection lines, wherein the plurality of second redundant connection lines are spaced apart in the second direction and extend along the first direction, and the plurality of third redundant connection lines are spaced apart in the first direction and extend along the second direction.

6. The display panel according to claim 5, characterized in that: One end of the second redundant connection line is electrically connected to the second constant voltage signal line, and the other end of the second redundant connection line is exposed. One end of the third redundant connection line is electrically connected to the second constant voltage signal line, and the other end of the third redundant connection line is exposed.

7. The display panel according to claim 2, characterized in that: The length of the first data connection line on a side close to the middle area of ​​the display area is greater than the length of the first data connection line on a side away from the middle area of ​​the display area.

8. The display panel according to claim 2, characterized in that: The length of the second data connection line at a side away from the lower frame area is greater than the length of the second data connection line at a side close to the lower frame area.

9. The display panel according to claim 1, characterized in that: In a top view of the display panel, the first constant voltage signal line is located in the first display sub-area.

10. The display panel according to claim 1, characterized in that: In a top view of the display panel, a portion of the first constant voltage signal line is located in the first display sub-area, and another portion of the first constant voltage signal line is located in the lower frame area.

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