Display panel and display device

Abstract

The present invention discloses a display panel and a display device, which relate to the field of display technology. The display panel includes a display area and a non-display area, wherein a source line is located in the non-display area, and a first signal line group is located on one side of the source line along a first direction. The first signal line group includes a first signal line and a second signal line, and the first signal line and the second signal line transmit pulse signals of opposite polarities. The first signal line includes a coupled first line segment and a second line segment, and the second signal line includes a coupled third line segment and a fourth line segment. Along the first direction, the distance between the first line segment and the source line is less than or equal to the distance between the third line segment and the source line; along the first direction, the distance between the second line segment and the source line is greater than or equal to the distance between the fourth line segment and the source line. In this way, the first signal line and the second signal line, which transmit opposite pulse signals, have similar coupling effects on the source line, thereby reducing the coupling effect of the first signal line group on the source line and improving the display effect of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] In an existing display panel, the display panel may include a display area and a non-display area. The display area is provided with data lines that can control pixel units to display images, and the non-display area is provided with a driver chip and a source line (also called a fan-out lead) electrically connected to it. Each source line can provide display signals for the above-mentioned data line.

[0003] In addition to fan-out leads, other signal lines are also provided in the non-display area of ​​the display panel. The pulse signals transmitted by the other signal lines may be coupled to the source lines, affecting the display effect of the display panel. Summary of the Invention

[0004] An embodiment of the present invention provides a display panel to reduce the coupling effect of a first signal line group on a source line, thereby improving the display effect of the display panel.

[0005] In a first aspect, an embodiment of the present invention provides a display panel, which includes a display area and a non-display area, wherein the non-display area is located outside the display area;

[0006] substrate;

[0007] a source line, located in the non-display area;

[0008] a signal line group located in the non-display area and on the same side of the substrate as the source line, comprising a first signal line group located on one side of the source line along a first direction parallel to the plane of the substrate; the first signal line group comprising a first signal line and a second signal line, the first signal line and the second signal line transmitting pulse signals of opposite polarities;

[0009] The first signal line includes a first line segment and a second line segment coupled to each other, and the second signal line includes a third line segment and a fourth line segment coupled to each other;

[0010] Along the first direction, the distance between the first line segment and the source line is less than or equal to the distance between the third line segment and the source line;

[0011] Along the first direction, a distance between the second line segment and the source line is greater than or equal to a distance between the fourth line segment and the source line.

[0012] In a second aspect, an embodiment of the present invention further provides a display device, comprising the display panel described in the first aspect.

[0013] An embodiment of the present invention provides a display panel, which reduces the overall coupling effect of the first signal line group on the source line by adjusting the positions of the first line segment and the second line segment in the first signal line, and adjusting the positions of the third line segment and the fourth line segment in the second signal line, so that the first signal line and the second signal line that transmit pulse signals of opposite polarities have similar coupling effects on the source line, thereby improving the white vertical line phenomenon of the display panel and enhancing the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of a top view of a display panel provided by an embodiment of the present invention;

[0015] Figure 2 yes Figure 1 An enlarged schematic diagram of the middle S11 region;

[0016] Figure 3 It is along Figure 2 Schematic diagram of the cross-sectional structure of AA';

[0017] Figure 4 is a schematic top view of another display panel provided by an embodiment of the present invention;

[0018] Figure 5 It is along Figure 4 Schematic diagram of the cross-sectional structure of BB';

[0019] Figure 6 is a schematic top view of another display panel provided by an embodiment of the present invention;

[0020] Figure 7 It is along Figure 6 Schematic diagram of the cross-sectional structure of CC';

[0021] Figure 8 yes Figure 1 A schematic diagram of the circuit connection relationship of a source line in the S12 region;

[0022] Figure 9 1 is a schematic diagram of another circuit connection relationship of a source line provided by an embodiment of the present invention;

[0023] Figure 10 is a schematic top view of another display panel provided by an embodiment of the present invention;

[0024] Figure 11 is a schematic top view of another display panel provided by an embodiment of the present invention;

[0025] Figure 12 is a schematic top view of another display panel provided by an embodiment of the present invention;

[0026] Figure 131 is a schematic diagram of another circuit connection relationship of a source line provided by an embodiment of the present invention;

[0027] Figure 14 is a schematic top view of another display panel provided by an embodiment of the present invention;

[0028] Figure 15 yes Figure 14 An enlarged schematic diagram of the S13 region;

[0029] Figure 16 is a schematic top view of another display panel provided by an embodiment of the present invention;

[0030] Figure 17 It is along Figure 16 Schematic diagram of the cross-sectional structure of DD';

[0031] Figure 18 is a schematic top view of another display panel provided by an embodiment of the present invention;

[0032] Figure 19 It is along Figure 18 Schematic diagram of the cross-sectional structure of EE';

[0033] Figure 20 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be fully described below in conjunction with the accompanying drawings of the embodiments of the present invention through specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] Research has found that when a source line is close to a signal line transmitting a positive pulse signal, its potential is pulled up; when a source line is close to a signal line transmitting a negative pulse signal, its potential is pulled down. Consequently, when the display panel displays an image, the voltage on the source line changes relative to the preset voltage due to coupling, resulting in white vertical lines appearing in the center or at the edges of the display area, affecting the display quality.

[0036] Figure 1 is a schematic diagram of a top view of a display panel provided by an embodiment of the present invention. Figure 2 yes Figure 1 An enlarged schematic diagram of the S11 region in the Figure 1 and Figure 2The display panel provided by an embodiment of the present invention includes a display area AA and a non-display area BB, with the non-display area BB being located outside the display area AA. The display panel also includes a substrate 10, source lines 20, and a signal line group 30. The source lines 20 are located in the non-display area BB, and the signal line group 30 is located in the non-display area BB. The signal line group 30 and the source lines 20 are located on the same side of the substrate 10. The signal line group 30 includes a first signal line group 310, which is located on one side of the source lines 20 along a first direction X. The first direction X is parallel to the plane of the substrate 10. The first signal line group 310 includes a first signal line 311 and a second signal line 312. The first signal line 311 and the second signal line 312 transmit pulse signals of opposite polarity. The first signal line 311 transmits a positive pulse signal, and the second signal line 312 transmits a negative pulse signal; alternatively, the first signal line 311 transmits a negative pulse signal, and the second signal line 312 transmits a positive pulse signal.

[0037] The first signal line 311 includes a coupled first line segment 311a and a coupled second line segment 311b. The second signal line 312 includes a coupled third line segment 312a and a coupled fourth line segment 312b. Along the first direction X, the distance between the first line segment 311a and the source line 20 is less than or equal to the distance between the third line segment 312a and the source line 20. Along the first direction X, the distance between the second line segment 311b and the source line 20 is greater than or equal to the distance between the fourth line segment 312b and the source line 20. The distance between a line segment (including the first line segment 311a, the second line segment 311b, the third line segment 312a, and the fourth line segment 312b) and the source line 20 refers to the distance between the line segment and the source line 20 closest to it. In other words, it refers to the distance between the line segment and the outermost source line 20. The two coupled elements may be directly or indirectly electrically connected.

[0038] For example, the first signal line 311 transmits a positive pulse signal, and the second signal line 312 transmits a negative pulse signal. The first signal line 311 transmits a positive pulse signal, and the first and second segments 311a and 311b transmit positive pulse signals. The positive pulse signals transmitted by the first and second segments 311a and 311b couple to the source line 20, raising the potential on the source line 20. The second signal line 312 transmits a negative pulse signal, and the third and fourth segments 312a and 312b transmit negative pulse signals. The negative pulse signals transmitted by the third and fourth segments 312a and 312b couple to the source line 20, lowering the potential on the source line 20. Along the first direction X, the distance between the first segment 311a and the source line 20 is less than or equal to the distance between the third segment 312a and the source line 20. The coupling effect of the first line segment 311a on the source line 20 is greater than or equal to the coupling effect of the third line segment 312a on the source line 20. The coupling effect of the first line segment 311a and the third line segment 312a on the source line 20 tends to increase the potential on the source line 20.

[0039] Along the first direction X, the distance between the second line segment 311b and the source line 20 is greater than or equal to the distance between the fourth line segment 312b and the source line 20. The coupling effect of the fourth line segment 312b on the source line 20 is greater than or equal to the coupling effect of the second line segment 311b on the source line 20. The combined coupling effect of the second and fourth line segments 311b, 312b on the source line 20 tends to lower the potential on the source line 20. Thus, the combined coupling effect of the first, second, third, and fourth line segments 311a, 311b, 312a, and 312b on the source line 20 simultaneously "raises" and "lowers" the potential on the source line 20. These two effects offset each other, reducing the coupling effect of the first signal line group 310 on the source line 20.

[0040] An embodiment of the present invention provides a display panel. By adjusting the positions of the first line segment 311a and the second line segment 311b in the first signal line 311, and adjusting the positions of the third line segment 312a and the fourth line segment 312b in the second signal line 312, the first signal line 311 and the second signal line 312, which transmit pulse signals of opposite polarities, have similar coupling effects on the source line 20. This reduces the overall coupling effect of the first signal line group 310 on the source line 20, improves the white vertical line phenomenon of the display panel, and enhances the display effect of the display panel.

[0041] For example, refer to Figure 1 and Figure 2The display panel includes a source line group 200, which is located in the non-display area BB. The area where the source line group 200 is located is called a fan-out area. The source line group 200 includes multiple source lines 20. In one embodiment, the display panel includes two source line groups 200, namely a first source line group 210 and a second source line group 220. A first signal line group 310 is disposed adjacent to the first source line group 210, and the extension direction of the first signal line group 310 is substantially consistent with the extension direction of the source lines 20 adjacent to the first signal line group 310 in the first source line group 210. Preferably, in other embodiments, the extension direction of the first signal line group 310 is consistent with the extension direction of the source lines 20 adjacent to the first signal line group 310 in the first source line group 210, and the first signal line group 310 is disposed along an edge of the first source line group 210. The first signal line group 310 is located on one side of the first source line group 210 along the first direction X. In addition, in other embodiments, the display panel may further include one source line group 200 , or at least three source line groups 200 .

[0042] For example, refer to Figure 1 and Figure 2 Along the first direction X, the source line 20, the first line segment 311a, and the third line segment 312a overlap, and the source line 20, the first line segment 311a, and the third line segment 312a are arranged in sequence. Along the first direction X, the first line segment 311a is located between the source line 20 and the third line segment 312a. Along the first direction X, the source line 20, the fourth line segment 312b, and the second line segment 311b overlap, and the source line 20, the fourth line segment 312b, and the second line segment 311b are arranged in sequence. Along the first direction X, the fourth line segment 312b is located between the source line 20 and the second line segment 311b.

[0043] For example, refer to Figure 1 and Figure 2 The first line segment 311a and the fourth line segment 312b are arranged in a direction perpendicular to the first direction X. The third line segment 312a and the second line segment 311b are arranged in a direction perpendicular to the first direction X. In one embodiment, the direction perpendicular to the first direction X is the extension direction of the source line 20 closest to the first signal line group 310. Along the extension direction of the source line 20 closest to the first signal line group 310, there are two line segments that transmit opposite pulse signals. The coupling effects of the two line segments transmitting opposite pulse signals on the source line 20 offset each other, reducing the coupling effect on the source line 20. In this embodiment of the present invention, the positive (pulling up) and negative (pulling down) coupling effects on the source line 20 are balanced along the direction perpendicular to the first direction X. In other embodiments, the extension direction of the source line 20 closest to the first signal line group 310 is not perpendicular to the first direction X and forms an angle greater than 0 degrees and less than 90 degrees.

[0044] As an embodiment, the first line segment 311a and the fourth line segment 312b are collinear, that is, the first line segment 311a and the fourth line segment 312b are located on the same straight line. In other embodiments, the first line segment 311a and the fourth line segment 312b may not be collinear.

[0045] Exemplarily, the first line segment 311a and the fourth line segment 312b are collinearly arranged. The source line 20 closest to the first signal line group 310 is parallel to the first line segment 311a. The source line 20 closest to the first signal line group 310 extends in a direction perpendicular to the first direction X. Along the first direction X, the distance between the first line segment 311a and the source line 20 is equal to the distance between the fourth line segment 312b and the source line 20. For example, the first signal line 311 transmits a positive pulse signal and the second signal line 312 transmits a negative pulse signal. The first line segment 311a transmits a positive pulse signal, raising the potential on the source line 20. The fourth line segment 312b transmits a negative pulse signal, lowering the potential on the source line 20. The first line segment 311 a and the fourth line segment 312 b are at the same distance from the source line 20 . The coupling effects of the first line segment 311 a and the fourth line segment 312 b on the source line 20 offset each other, thereby reducing the coupling effect on the source line 20 .

[0046] It is understood that due to process fluctuations or for special routing purposes, the first line segment 311a and the fourth line segment 312b may be arranged to be non-collinear. For example, the first line segment 311a or the fourth line segment 312b may be positioned slightly away from or closer to the source line 20. The routing direction of the first line segment 311a or the fourth line segment 312b may slightly change. The first line segment 311a and the fourth line segment 312b are located in the same first position region S21, which extends perpendicular to the first direction X. As a result, the distance between the first line segment 311a and the source line 20 is smaller than the distance between the fourth line segment 312b and the source line 20. The coupling effects of the first line segment 311a and the fourth line segment 312b on the source line 20 offset each other, reducing the coupling effects on the source line 20.

[0047] Similarly, in one embodiment, the third line segment 312a and the second line segment 311b are collinearly arranged, that is, they are located on the same straight line. Due to process fluctuations or for special routing purposes, the third line segment 312a and the second line segment 311b may also be arranged to be non-collinear. The third line segment 312a and the second line segment 311b are located in the same second position region S22, which extends in a direction perpendicular to the first direction X.

[0048] Figure 3 It is along Figure 2Schematic diagram of the cross-section structure of AA', refer to Figure 2 and Figure 3 The first signal line 311 further includes a first connecting line segment 311c, which connects the first line segment 311a and the second line segment 311b. One end of the first connecting line segment 311c is connected to the first line segment 311a, and the other end of the first connecting line segment 311c is connected to the second line segment 311b. The first line segment 311a and the second line segment 311b are electrically connected via the first connecting line segment 311c. The second signal line 312 further includes a second connecting line segment 312c, which connects the third line segment 312a and the fourth line segment 312b. One end of the third line segment 312a is connected to the second connecting line segment 312c, and the other end of the third line segment 312a is connected to the fourth line segment 312b. The third line segment 312a and the fourth line segment 312b are electrically connected via the second connecting line segment 312c. The second connecting line segment 312c and the first connecting line segment 311c overlap in different layers perpendicular to the plane of the substrate 10. In the embodiment of the present invention, the first signal line 311 and the second signal line 312 are intertwined, and the second connecting line segment 312c and / or the first connecting line segment 311c are configured as bridges at the intersection of the first signal line 311 and the second signal line 312. This prevents unwanted electrical connection between the second connecting line segment 312c and the first connecting line segment 311c, thus preventing a short circuit between the second connecting line segment 312c and the first connecting line segment 311c.

[0049] Optionally, refer to Figure 2 and Figure 3 The first line segment 311a, the second line segment 311b, the third line segment 312a, the fourth line segment 312b, and the first connecting line segment 311c are formed on the same layer. Thus, the first line segment 311a, the second line segment 311b, the third line segment 312a, the fourth line segment 312b, and the first connecting line segment 311c can be formed using the same material and in the same process, thus saving process steps.

[0050] For example, refer to Figure 2 and Figure 3 The first line segment 311a, the second line segment 311b, and the first connecting line segment 311c are electrically connected in the same layer. The third line segment 312a and the fourth line segment 312b are electrically connected via a second connecting line segment 312c provided in a different layer. One end of the second connecting line segment 312c is electrically connected to the third line segment 312a via a connecting via, and the other end of the second connecting line segment 312c is electrically connected to the fourth line segment 312b via a connecting via. The second connecting line segment 312c is located perpendicular to the plane of the substrate 10, between the first connecting line segment 311c and the substrate 10. In other embodiments, the second connecting line segment 312c may also be located on the side of the first connecting line segment 311c away from the substrate 10.

[0051] For example, refer to Figure 2 and Figure 3 The first line segment 311a, the second line segment 311b, the third line segment 312a, the fourth line segment 312b, the first connecting line segment 311c, and the source line 20 are formed on the same layer. Therefore, the first line segment 311a, the second line segment 311b, the third line segment 312a, the fourth line segment 312b, the first connecting line segment 311c, and the source line 20 can be formed using the same material and in the same process, saving process steps.

[0052] Optionally, refer to Figure 2 and Figure 3 The length of a first line segment 311a is equal to the length of a fourth line segment 312b. The first line segment 311a and the fourth line segment 312b transmit pulse signals of opposite polarity. The first line segment 311a and the fourth line segment 312b are located at the same or approximately the same distance from the source line 20. Furthermore, the length of the source line 20 affected by the coupling effect of the first line segment 311a is equal to the length of the source line 20 affected by the coupling effect of the fourth line segment 312b. The coupling effects of the first line segment 311a and the fourth line segment 312b on the source line 20 offset each other, reducing the coupling effect on the source line 20.

[0053] The length of a second line segment 311b is equal to the length of a third line segment 312a. The second line segment 311b and the third line segment 312a transmit pulse signals of opposite polarity. The second line segment 311b and the third line segment 312a are located at the same or approximately the same distance from the source line 20. Furthermore, the length of the source line 20 affected by the coupling effect of the second line segment 311b is equal to the length of the source line 20 affected by the coupling effect of the third line segment 312a. The coupling effects of the second line segment 311b and the third line segment 312a on the source line 20 offset each other, reducing the coupling effect on the source line 20.

[0054] Optionally, refer to Figure 2 and Figure 3 The first signal line 311 includes a first line segment 311 a and a second line segment 311 b , and the second signal line 312 includes a third line segment 312 a and a fourth line segment 312 b .

[0055] For example, refer to Figure 2 and Figure 3The first signal line 311 is composed of a first line segment 311a, a second line segment 311b, and a first connecting line segment 311c. The second signal line 312 is composed of a third line segment 312a, a fourth line segment 312b, and a second connecting line segment 312c. The first signal line 311 includes a first connecting line segment 311c, and the second signal line 312 includes a second connecting line segment 312c. This reduces the number of second connecting line segments 312c serving as bridges, reduces the risk of short circuits between the second connecting line segment 312c and the third line segment 312a, and reduces the risk of short circuits between the second connecting line segment 312c and the fourth line segment 312b, thereby reducing the risk of disconnection of the second signal line 312.

[0056] For example, refer to Figure 2 and Figure 3 , the length of a first line segment 311a is equal to the length of a fourth line segment 312b. The first signal line 311 includes a first line segment 311a and a second line segment 311b, and the second signal line 312 includes a third line segment 312a and a fourth line segment 312b. The first half of the first position area S21 is the first line segment 311a, and the second half of the first position area S21 is the fourth line segment 312b. Correspondingly, the first half of the source line 20 is affected by the coupling of the first line segment 311a, and the second half of the source line 20 is affected by the coupling of the fourth line segment 312b. The coupling effects of the first line segment 311a and the fourth line segment 312b on the source line 20 offset each other, reducing the coupling effect on the source line 20.

[0057] The length of a second line segment 311b is equal to the length of a third line segment 312a. The first signal line 311 includes a first line segment 311a and a second line segment 311b, and the second signal line 312 includes a third line segment 312a and a fourth line segment 312b. The first half of the second position area S22 is the third line segment 312a, and the second half of the second position area S22 is the second line segment 311b. Correspondingly, the first half of the source line 20 is affected by the coupling of the third line segment 312a, and the second half of the source line 20 is affected by the coupling of the second line segment 311b. The coupling effects of the second line segment 311b and the third line segment 312a on the source line 20 offset each other, reducing the coupling effect on the source line 20.

[0058] Figure 4 is a schematic top view of another display panel provided by an embodiment of the present invention. Figure 5 It is along Figure 4 Schematic diagram of the cross-section structure of BB', refer to Figure 4 and Figure 5The first signal line 311 includes multiple first line segments 311a and multiple second line segments 311b, with the first line segments 311a and the second line segments 311b arranged alternately. Within the same first signal line 311, a second line segment 311b exists between two adjacent first line segments 311a, and a first line segment 311a exists between two adjacent second line segments 311b. The second signal line 312 includes multiple third line segments 312a and multiple fourth line segments 312b, with the third line segments 312a and the fourth line segments 312b arranged alternately. Within the same second signal line 312, a fourth line segment 312b exists between two adjacent third line segments 312a, and a third line segment 312a exists between two adjacent fourth line segments 312b.

[0059] In the first position region S21, along a direction perpendicular to the first direction X, the first line segment 311a and the fourth line segment 312b are arranged alternately. That is, the first line segment 311a, the fourth line segment 312b, the first line segment 311a, the fourth line segment 312b, and so on. Along the direction perpendicular to the first direction X, the coupling effects on each line segment on the source line 20 are respectively: pull-up voltage, pull-down voltage, pull-up voltage, pull-down voltage, and so on. This reduces the distance between coupled pairs on the source line 20 that offset each other's coupling effects. This improves the effect of offsetting positive and negative coupling effects along the direction perpendicular to the first direction X. In the second position region S22, along the direction perpendicular to the first direction X, the third line segment 312a and the second line segment 311b are arranged alternately. That is, the third line segment 312a, the second line segment 311b, the third line segment 312a, the second line segment 311b, and so on. Along a direction perpendicular to the first direction X, the coupling effects on each line segment of the source line 20 are respectively: pull-up voltage, pull-down voltage, pull-up voltage, pull-down voltage, etc. This reduces the distance between coupled pairs on the source line 20 that offset each other's coupling effects. This improves the effect of offsetting positive and negative coupling effects along the direction perpendicular to the first direction X.

[0060] For example, refer to Figure 4 and Figure 5 The first line segment 311a is electrically connected to the second line segment 311b via the first connecting line segment 311c, and the third line segment 312a is electrically connected to the fourth line segment 312b via the second connecting line segment 312c.

[0061] Figure 6 is a schematic top view of another display panel provided by an embodiment of the present invention. Figure 7 It is along Figure 6 Schematic diagram of the cross-section structure of CC', refer to Figure 6 and Figure 7The first signal line 311 also includes a third connecting line segment 311d. The first line segment 311a and the second line segment 311b are connected via the first connecting line segment 311c. Alternatively, the first line segment 311a and the second line segment 311b are connected via the third connecting line segment 311d. The second signal line 312 also includes a fourth connecting line segment 312d. The third line segment 312a and the fourth line segment 312b are connected via the second connecting line segment 312c. Alternatively, the third line segment 312a and the fourth line segment 312b are connected via the fourth connecting line segment 312d. The first connecting line segment 311c and the fourth connecting line segment 312d are on the same layer. The third connecting line segment 311d and the second connecting line segment 312c are on the same layer. In a direction perpendicular to the plane of the substrate 10, the third connecting line segment 311d and the fourth connecting line segment 312d overlap on different layers. In this embodiment of the present invention, in the first signal line 311, the third connecting line segment 311d serves as a bridge. In the second signal line 312, the second connecting line segment 312c serves as a bridge. The third connecting line segment 311d is on the same layer as the second connecting line segment 312c, reducing the resistance difference between the third connecting line segment 311d and the second connecting line segment 312c, and thus reducing the resistance difference between the first signal line 311 and the second signal line 312. This reduces the strength difference of the pulse signals transmitted by the first signal line 311 and the second signal line 312, and improves the effect of offsetting the positive and negative coupling effects of the first signal line 311 and the second signal line 312 on the source line 20.

[0062] For example, refer to Figure 6 and Figure 7In the same first signal line 311, the first connecting line segment 311c and the third connecting line segment 311d are arranged alternately. That is, the first line segment 311a, the first connecting line segment 311c, the second line segment 311b, the third connecting line segment 311d, the first line segment 311a, the first connecting line segment 311c, the second line segment 311b, the third connecting line segment 311d, .... The first line segment 311a and the second line segment 311b are alternately connected by the first connecting line segment 311c or the third connecting line segment 311d. In the same second signal line 312, the second connecting line segment 312c and the fourth connecting line segment 312d are arranged alternately. That is, the third line segment 312a, the second connecting line segment 312c, the fourth line segment 312b, the fourth connecting line segment 312d, the third line segment 312a, the second connecting line segment 312c, the fourth line segment 312b, the fourth connecting line segment 312d, .... The third line segment 312a and the fourth line segment 312b are alternately connected by the second connecting line segment 312c or the fourth connecting line segment 312d. In the embodiment of the present invention, the number of the third connecting line segments 311d and the second connecting line segments 312c is the same or similar, which reduces the difference in the number of the third connecting line segments 311d and the second connecting line segments 312c, reduces the difference in the number of bridges in the first signal line 311 and the second signal line 312, reduces the difference in resistance between the first signal line 311 and the second signal line 312, and thus reduces the difference in the strength of the pulse signals transmitted by the first signal line 311 and the second signal line 312.

[0063] Figure 8 yes Figure 1 A schematic diagram of the circuit connection relationship of a source line in the S12 area, reference Figure 1 and Figure 8 The display panel further includes a data line 50. At least a portion of the data line 50 is located in the display area AA. The data line 50 can extend from the display area AA to the non-display area BB. The data line 50 is coupled to the source line 20. The source line 20 provides a data signal to the data line 50.

[0064] Optionally, refer to Figure 1 and Figure 8 The display panel further includes a multiplexer circuit 60, which is located in the non-display area BB. The multiplexer circuit 60 includes a switch transistor 610, wherein a first electrode of the switch transistor 610 is coupled to the data line 50, a second electrode of the switch transistor 610 is coupled to the source line 20, and a gate of the switch transistor 610 is coupled to the first signal line 311 or the second signal line 312.

[0065] For example, refer to Figure 1 The multiplexer circuit 60 is located outside the source line group 200. In one embodiment, the multiplexer circuit 60 is located between the source line group 200 and the display area AA.

[0066] For example, refer to Figure 1 and Figure 8 The display panel also includes multiple data lines 50, and the multiplexing circuit 60 includes multiple switching transistors 610. Each data line 50 is coupled to the first electrode of a switching transistor 610, and the second electrodes of at least two switching transistors 610 are coupled to the same source line 20. Thus, by controlling the on / off state of the switching transistors 610, one of the at least two data lines 50 is electrically connected to the source line 20, while the remaining data lines 50 are not electrically connected to the source line 20. This enables the same source line 20 to provide data signals to at least two data lines 50 in a time-sharing manner.

[0067] Optionally, continue to refer to Figure 1 and Figure 8 The switch transistor 610 includes a first sub-switch transistor 611 and a second sub-switch transistor 612. The first electrode of the first sub-switch transistor 611 is electrically connected to the first electrode of the second sub-switch transistor 612. The second electrode of the first sub-switch transistor 611 is electrically connected to the second electrode of the second sub-switch transistor 612. The gate of the first sub-switch transistor 611 is coupled to the first signal line 311, and the gate of the second sub-switch transistor 612 is coupled to the second signal line 312. In this embodiment of the present invention, one of the first sub-switch transistor 611 and the second sub-switch transistor 612 is an NMOS transistor, and the other is a PMOS transistor. The switch transistor 610 is a CMOS transistor. The first signal line 311 and the second signal line 312 transmit pulse signals of opposite polarity. The first sub-switch transistor 611 and the second sub-switch transistor 612 are turned on or off simultaneously. Thus, by configuring the switch transistor 610 as a CMOS transistor and by controlling the first and second sub-switch transistors 611 and 612 in opposite ways, the switch transistor 610 can have the characteristics of low power consumption, high speed, and high reliability.

[0068] Figure 9 This is a schematic diagram of another circuit connection relationship of a source line provided by an embodiment of the present invention, referring to Figure 9 The gate of the switch transistor 610 is coupled to the first signal line 311 , and the gate of the switch transistor 610 is electrically insulated from the second signal line 312 .

[0069] For example, refer to Figure 9The switching transistor 610 can be an NMOS transistor. The first signal line 311 can transmit a positive polarity pulse signal, and the gate of the switching transistor 610 is coupled to the first signal line 311, and the first signal line 311 is used to control the on and off of the switching transistor 610. The second signal line 312 can transmit a negative polarity pulse signal. Since the NMOS transistor is turned on at a high level, it is not necessary to electrically connect the second signal line 312 to the switching transistor 610. However, it is necessary to set the coupling effect of the first signal line 311 on the source line 20 and the coupling effect of the second signal line 312 on the source line 20 to offset each other. In this embodiment, the second signal line 312 is set in the display panel, and the second signal line 312 is electrically insulated from the gate of the switching transistor 610, that is, the second signal line 312 is set to float.

[0070] Figure 10 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention, with reference to Figure 10 The first signal line group 310 further includes a third signal line 313 and a fourth signal line 314. The third signal line 313 and the fourth signal line 314 transmit pulse signals of opposite polarities. The third signal line 313 and the first signal line 311 transmit pulse signals of the same polarity, and the fourth signal line 314 and the second signal line 312 transmit pulse signals of the same polarity.

[0071] The third signal line 313 includes a coupled fifth line segment 313a and a coupled sixth line segment 313b. The fourth signal line 314 includes a coupled seventh line segment 314a and an eighth line segment 314b. Along the first direction X, the source line 20, the first line segment 311a, the fifth line segment 313a, and the third line segment 312a overlap. Along the first direction X, the fifth line segment 313a is located between the first line segment 311a and the third line segment 312a. Along the first direction X, the source line 20, the first line segment 311a, the third line segment 312a, and the seventh line segment 314a overlap. Along the first direction X, the seventh line segment 314a is located on the side of the third line segment 312a away from the first line segment 311a. The source line 20, the first line segment 311a, the fifth line segment 313a, the third line segment 312a, and the seventh line segment 314a are arranged along the first direction X. Thus, along the first direction X, the distance between the fifth line segment 313 a and the source line 20 is smaller than the distance between the seventh line segment 314 a and the source line 20 .

[0072] Along the first direction X, the source line 20, the fourth line segment 312b, the second line segment 311b, and the eighth line segment 314b overlap. Along the first direction X, the eighth line segment 314b is located between the fourth line segment 312b and the second line segment 311b. Along the first direction X, the source line 20, the fourth line segment 312b, the second line segment 311b, and the sixth line segment 313b overlap. The sixth line segment 313b is located on the side of the second line segment 311b away from the fourth line segment 312b. The source line 20, the fourth line segment 312b, the eighth line segment 314b, the second line segment 311b, and the sixth line segment 313b are arranged along the first direction X. As a result, the distance between the sixth line segment 313b and the source line 20 is greater than the distance between the eighth line segment 314b and the source line 20.

[0073] As an embodiment, the fifth line segment 313a and the eighth line segment 314b are collinearly arranged. In other embodiments, the fifth line segment 313a and the eighth line segment 314b may not be collinear.

[0074] Exemplarily, the fifth line segment 313a and the eighth line segment 314b are collinearly arranged. The source line 20 closest to the first signal line group 310 is parallel to the fifth line segment 313a. The source line 20 closest to the first signal line group 310 extends in a direction perpendicular to the first direction X. Along the first direction X, the distance between the fifth line segment 313a and the source line 20 is equal to the distance between the eighth line segment 314b and the source line 20. The fifth line segment 313a and the eighth line segment 314b are located at the same distance from the source line 20. The coupling effects of the fifth line segment 313a and the eighth line segment 314b on the source line 20 offset each other, reducing the coupling effect on the source line 20. It is understood that due to process fluctuations or for special routing purposes, the fifth line segment 313a and the eighth line segment 314b may be arranged to be non-collinear.

[0075] As an embodiment, the seventh line segment 314a and the sixth line segment 313b are arranged on a collinear basis. In other embodiments, the seventh line segment 314a and the sixth line segment 313b may not be collinear.

[0076] Exemplarily, the seventh line segment 314a and the sixth line segment 313b are collinearly arranged. The source line 20 closest to the first signal line group 310 is parallel to the seventh line segment 314a. The source line 20 closest to the first signal line group 310 extends in a direction perpendicular to the first direction X. Along the first direction X, the distance between the seventh line segment 314a and the source line 20 is equal to the distance between the sixth line segment 313b and the source line 20. The seventh line segment 314a and the sixth line segment 313b are located at the same distance from the source line 20. The coupling effects of the seventh line segment 314a and the sixth line segment 313b on the source line 20 offset each other, reducing the coupling effect on the source line 20. It is understood that due to process fluctuations or for special routing purposes, the seventh line segment 314a and the sixth line segment 313b may be arranged to be non-collinear.

[0077] In the embodiment of the present invention, the first signal line 311 and the second signal line 312 that transmit pulse signals of opposite polarity have similar coupling effects on the source line 20, and the third signal line 313 and the fourth signal line 314 that transmit pulse signals of opposite polarity have similar coupling effects on the source line 20, thereby reducing the overall coupling effect of the first signal line group 310 on the source line 20, improving the white vertical line phenomenon of the display panel, and enhancing the display effect of the display panel.

[0078] For example, refer to Figure 10 The first line segment 311a, the second line segment 311b, the third line segment 312a, the fourth line segment 312b, the fifth line segment 313a, the sixth line segment 313b, the seventh line segment 314a and the eighth line segment 314b are arranged in the same layer, so that the first line segment 311a, the second line segment 311b, the third line segment 312a, the fourth line segment 312b, the fifth line segment 313a, the sixth line segment 313b, the seventh line segment 314a and the eighth line segment 314b can be formed at the same time using the same material and in the same process, thereby simplifying the process.

[0079] For example, refer to Figure 10 The third signal line 313 further includes a fifth connecting line segment 313c, which connects the fifth line segment 313a and the sixth line segment 313b. The fourth signal line 314 further includes a sixth connecting line segment 314c, which connects the seventh line segment 314a and the eighth line segment 314b. The fifth connecting line segment 313c is on the same layer as the fifth line segment 313a. The sixth connecting line segment 314c is on the same layer as the second connecting line segment 312c. The sixth connecting line segment 314c overlaps with the first connecting line segment 311c on a different layer. The sixth connecting line segment 314c overlaps with the fifth connecting line segment 313c on a different layer. The fifth connecting line segment 313c overlaps with the second connecting line segment 312c on a different layer.

[0080] Figure 11is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention, Figure 10 The difference lies in the winding method of the first signal line 311, the second signal line 312, the third signal line 313 and the fourth signal line 314. Figure 11 Along the first direction X, the seventh line segment 314a is located on the side of the third line segment 312a away from the first line segment 311a. Along the first direction X, the fifth line segment 313a is located between the third line segment 312a and the seventh line segment 314a. Along the first direction X, the sixth line segment 313b is located on the side of the second line segment 311b away from the fourth line segment 312b. Along the first direction X, the eighth line segment 314b is located between the second line segment 311b and the sixth line segment 313b. In this embodiment of the present invention, the first signal line 311 and the second signal line 312 form a double winding line, and the third signal line 313 and the fourth signal line 314 form a double winding line. The positional relationship between the line segments of the third signal line 313 and the fourth signal line 314 is similar to the positional relationship between the line segments of the first signal line 311 and the second signal line 312, and will not be further described here.

[0081] Figure 12 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention, Figure 11 The difference is that the winding method of the third signal line 313 and the fourth signal line 314 is as follows: Figure 12Along the first direction X, the seventh line segment 314a is located on the side of the third line segment 312a away from the first line segment 311a. Along the first direction X, the fifth line segment 313a is located on the side of the seventh line segment 314a away from the third line segment 312a. Along the first direction X, the sixth line segment 313b is located on the side of the second line segment 311b away from the fourth line segment 312b. Along the first direction X, the eighth line segment 314b is located on the side of the sixth line segment 313b away from the second line segment 311b. In this embodiment of the present invention, the first line segment 311a and the fifth line segment 313a transmit pulse signals of the same polarity, the third line segment 312a and the seventh line segment 314a transmit pulse signals of the same polarity, and the first line segment 311a and the third line segment 312a transmit pulse signals of opposite polarity. The first line segment 311a, the third line segment 312a, the seventh line segment 314a, and the fifth line segment 313a are arranged along the first direction X and in a direction away from the source line 20. Taking the example of the first signal line 311 and the third signal line 313 transmitting positive polarity pulse signals, and the second signal line 312 and the fourth signal line 314 transmitting negative polarity pulse signals, the first line segment 311a and the third line segment 312a jointly exert a coupling effect on the source line 20 that tends to raise the potential on the source line 20. The seventh line segment 314a and the fifth line segment 313a jointly exert a coupling effect on the source line 20 that tends to lower the potential on the source line 20. Thus, the first line segment 311a, the third line segment 312a, the fifth line segment 313a, and the seventh line segment 314a jointly exert a coupling effect on the source line 20 that simultaneously "raises the potential on the source line 20" and "lowers the potential on the source line 20." These two effects offset each other, thereby reducing the coupling effect on the source line 20 caused by the first signal line group 310. It should be noted that, because the first line segment 311a, the third line segment 312a, the fifth line segment 313a, and the seventh line segment 314a overlap with the source line 20 along the first direction X, the first line segment 311a, the third line segment 312a, the fifth line segment 313a, and the seventh line segment 314a exert a coupling effect on the same segment (e.g., the first half) of the source line 20. Therefore, in this embodiment of the present invention, the coupling effects of the positive (pulling up) and negative (pulling down) signals in the source line 20 are balanced not only along a direction perpendicular to the first direction X but also along the first direction X.

[0082] Figure 13 This is a schematic diagram of another circuit connection relationship of a source line provided by an embodiment of the present invention, referring to Figure 13, the first signal line group 310 includes a first signal line 311, a second signal line 312, a third signal line 313, and a fourth signal line 314. The first signal line group 310 may also include a seventh signal line 317 and an eighth signal line 318. The first signal line 311, the third signal line 313, and the seventh signal line 317 transmit pulse signals of the same polarity. The second signal line 312, the fourth signal line 314, and the eighth signal line 318 transmit pulse signals of the same polarity. The seventh signal line 317 and the eighth signal line 318 transmit pulse signals of opposite polarities. In an embodiment of the present invention, the first signal line group 310 may include 6 signal lines. In other embodiments, the first signal line group 310 may include other numbers of signal lines.

[0083] For example, refer to Figure 13 Display area AA includes a plurality of pixels 110. Pixel 110 includes a red light-emitting sub-pixel 1101, a green light-emitting sub-pixel 1102, and a blue light-emitting sub-pixel 1103. Data lines 50 include a first data line 510, a second data line 520, and a third data line 530. First data line 510 connects red light-emitting sub-pixel 1101 and a first electrode of a switching transistor 610, second data line 520 connects green light-emitting sub-pixel 1102 and a first electrode of the switching transistor 610, and third data line 530 connects blue light-emitting sub-pixel 1103 and a first electrode of the switching transistor 610. The second electrode of the switching transistor 610 is coupled to the source line 20. When the switch transistor 610 is turned on, the data signal on the source line 20 is transmitted to the red light-emitting sub-pixel 1101 via the first data line 510, the data signal on the source line 20 is transmitted to the green light-emitting sub-pixel 1102 via the second data line 520, and the data signal on the source line 20 is transmitted to the blue light-emitting sub-pixel 1103 via the third data line 530. It should be noted that the embodiments of the present invention are applicable to both liquid crystal display panels and organic light-emitting display panels.

[0084] Figure 14 is a schematic top view of another display panel provided by an embodiment of the present invention. Figure 15 yes Figure 14 An enlarged schematic diagram of the S13 region in the Figure 14 and Figure 15The plurality of data lines 50 are arranged along a second direction Y, and the first direction X intersects the second direction Y. The display panel further includes a first source line group 210 and a second source line group 220. The first source line group 210 and the second source line group 220 are located on the same side of the display area AA. The first source line group 210 and the second source line group 220 are located on the side of the multiplexing circuit 60 away from the display area AA. The first source line group 210 and the second source line group 220 are arranged along the second direction Y. The first source line group 210 and the second source line group 220 each include a plurality of source lines 20. Along the second direction Y, the first signal line group 310 is located between the first source line group 210 and the second source line group 220. In this embodiment of the present invention, the source lines 20 in the first source line group 210 that are affected by coupling are located in the middle region of the display panel along the second direction Y. Due to the coupling effect on the source lines 20, the voltage on the source lines 20 located in the middle region of the display panel along the second direction Y changes relative to the preset voltage. The voltage on the data line 50 located in the middle region of the display area AA along the second direction Y changes relative to the preset voltage. Since the first signal line group 310 employs the configuration of the aforementioned embodiment of the present invention, the coupling effect of the first signal line group 310 on the source line 20 is reduced, the white vertical line phenomenon in the middle region of the display panel is improved, and the display quality of the display panel is enhanced.

[0085] For example, refer to Figure 14 and Figure 15 The signal line group 30 may further include a second signal line group 320. The second signal line group 320 is located on one side of the second source line group 220 along the third direction M. The third direction M is parallel to the plane of the substrate 10 and intersects the first direction X and the second direction Y. The second signal line group 320 is disposed adjacent to the second source line group 220. The extension direction of the second signal line group 320 is substantially consistent with the extension direction of the source lines 20 in the second source line group 220 adjacent to the second signal line group 320. Preferably, in other embodiments, the extension direction of the second signal line group 320 is consistent with the extension direction of the source lines 20 in the second source line group 220 adjacent to the second signal line group 320, and the second signal line group 320 is disposed along the edge of the second source line group 220. The second signal line group 320 includes a fifth signal line 325 and a sixth signal line 326. The fifth signal line 325 and the sixth signal line 326 transmit pulse signals of opposite polarities. The fifth signal line 325 and the sixth signal line 326 form a double winding. The positional relationship of the segments in the fifth signal line 325 and the sixth signal line 326 is similar to the positional relationship of the segments in the first signal line 311 and the second signal line 312, and will not be further described here. This embodiment of the present invention does not limit the number of signal lines in the second signal line group 320.

[0086] For example, refer to Figure 14 and Figure 15 The plurality of signal line groups 30 may further include a third signal line group 330. Along the second direction Y, the third signal line group 330 is located on a side of the first source line group 210 away from the first signal line group 310. The third signal line group 330 is disposed adjacent to the first source line group 210, and the extension direction of the third signal line group 330 is substantially consistent with the extension direction of the source lines 20 in the first source line group 210 adjacent to the third signal line group 330. Preferably, in other embodiments, the extension direction of the third signal line group 330 is consistent with the extension direction of the source lines 20 in the first source line group 210 adjacent to the third signal line group 330, and the third signal line group 330 is disposed along an edge of the first source line group 210.

[0087] For example, refer to Figure 14 and Figure 15 The plurality of signal line groups 30 may further include a fourth signal line group 340. Along the second direction Y, the fourth signal line group 340 is located on a side of the second source line group 220 away from the second signal line group 320. The fourth signal line group 340 is disposed adjacent to the second source line group 220, and the extension direction of the fourth signal line group 340 is substantially consistent with the extension direction of the source lines 20 in the second source line group 220 adjacent to the fourth signal line group 340. Preferably, in other embodiments, the extension direction of the fourth signal line group 340 is consistent with the extension direction of the source lines 20 in the second source line group 220 adjacent to the fourth signal line group 340, and the fourth signal line group 340 is disposed along an edge of the second source line group 220.

[0088] It is understandable that the configuration of each signal line in the first signal line group 310 in each embodiment of the present invention can be similarly applied to other signal line groups 30 .

[0089] Optionally, refer to Figure 14 and Figure 15The non-display area BB includes a first bonding area 710 and a second bonding area 720. The first bonding area 710 is located on a side of the first source line group 210 away from the display area AA. The bonding pads 700 of the first bonding area 710 are electrically connected to the source lines 20 in the first source line group 210. The second bonding area 720 is located on a side of the second source line group 220 away from the display area AA. The bonding pads 700 of the second bonding area 720 are electrically connected to the source lines 20 in the second source line group 220. The first bonding area 710 and the second bonding area 720 are arranged along the second direction Y. In the first signal line group 310, the first signal line 311 and the second signal line 312 are respectively electrically connected to different bonding pads 700 in the first bonding area 710. The first signal line 311 is electrically connected to one bonding pad 700 in the first bonding area 710, and the first signal line 311 is electrically connected to another bonding pad 700 in the first bonding area 710. In the second signal line group 320, the fifth signal line 325 and the sixth signal line 326 are respectively electrically connected to different bonding pads 700 in the second bonding area 720. The fifth signal line 325 is electrically connected to one bonding pad 700 in the second bonding area 720, and the sixth signal line 326 is electrically connected to another bonding pad 700 in the second bonding area 720. In this embodiment of the present invention, data signals are provided to a portion of the data lines 50 in the display area AA via the bonding pads 700 in the first bonding area 710 and the source lines 20 in the first source line group 210. Data signals are provided to another portion of the data lines 50 in the display area AA via the bonding pads 700 in the second bonding area 720 and the source lines 20 in the second source line group 220.

[0090] Optionally, continue to refer to Figure 14 , multiple data lines 50 are arranged along the second direction Y and extend along the fourth direction N. Any two of the first direction X, the second direction Y, and the fourth direction N intersect. The length of the display area AA along the second direction Y is greater than the length of the display area AA along the fourth direction N. In other words, the horizontal length of the display area AA is greater than the vertical length of the display area AA, and the display panel is configured for landscape display. Therefore, at least two source line groups 200 are provided in the display panel, and a first signal line group 310 can be provided in the area between the two source line groups 200, thereby improving the white vertical line phenomenon in the middle area of ​​the display panel and enhancing the display effect of the display panel. It can be understood that the white vertical line phenomenon in the middle area has a greater impact on the display effect than the white vertical line phenomenon in the edge area, and therefore needs to be improved more urgently.

[0091] Figure 16 is a schematic top view of another display panel provided by an embodiment of the present invention. Figure 17 It is along Figure 16 DD' cross-sectional structure diagram, refer to Figure 16 and Figure 17In a direction perpendicular to the plane of substrate 10, first line segment 311a and third line segment 312a overlap in different layers. The first and third line segments 311a, 312a are located at the same or a similar distance from source line 20. The first and third line segments 311a, 312a transmit pulse signals of opposite polarity. The coupling effects of the first and third line segments 311a, 312a on source line 20 offset each other, reducing the coupling effect on source line 20. The second line segment 311b and fourth line segment 312b overlap in different layers. The second and fourth line segments 311b, 312b transmit pulse signals of opposite polarity. The coupling effects of the second and fourth line segments 311b, 312b on source line 20 offset each other, reducing the coupling effect on source line 20.

[0092] For example, refer to Figure 16 and Figure 17 The first line segment 311a and the second line segment 311b are on different layers and are electrically connected via a connecting via. The third line segment 312a and the fourth line segment 312b are on different layers and are electrically connected via a connecting via.

[0093] On the one hand, the first line segment 311a and the fourth line segment 312b are on the same layer, and the third line segment 312a and the second line segment 311b are on the same layer, thereby reducing the resistance difference between the first line segment 311a and the fourth line segment 312b, and reducing the resistance difference between the third line segment 312a and the second line segment 311b, reducing the intensity difference of the pulse signal transmitted by the first signal line 311 and the second signal line 312, and improving the effect of offsetting the positive and negative coupling effects of the first signal line 311 and the second signal line 312 on the source line 20.

[0094] On the other hand, different film layers have different coupling effects on source line 20. The third line segment 312a, which is on the same layer as source line 20, has a greater coupling effect on source line 20 than the first line segment 311a, which is on a different layer from source line 20. The second line segment 311b, which is on the same layer as source line 20, has a greater coupling effect on source line 20 than the fourth line segment 312b, which is on a different layer from source line 20. For example, in the case where the first signal line 311 transmits a positive pulse signal and the second signal line 312 transmits a negative pulse signal, the combined coupling effect of the first and third line segments 311a, 312a on source line 20 tends to lower the potential on source line 20. The combined coupling effect of the second and fourth line segments 311b, 312b on source line 20 tends to raise the potential on source line 20. Therefore, the first line segment 311a, the second line segment 311b, the third line segment 312a and the fourth line segment 312b jointly have a coupling effect on the source line 20, and at the same time have the effects of "pulling up the potential on the source line 20" and "pulling down the potential on the source line 20". After the two offset each other, the coupling effect of the first signal line group 310 on the source line 20 is reduced.

[0095] For example, refer to Figure 16 and Figure 17 The first signal line 311 includes a first line segment 311a and a second line segment 311b. In other embodiments, the first signal line 311 may include multiple first line segments 311a and multiple second line segments 311b. The second signal line 312 includes a third line segment 312a and a fourth line segment 312b. In other embodiments, the second signal line 312 includes multiple third line segments 312a and multiple fourth line segments 312b.

[0096] For example, refer to Figure 16 and Figure 17 , the length of a first line segment 311a is equal to the length of a fourth line segment 312b, and the length of a second line segment 311b is equal to the length of a third line segment 312a.

[0097] In one embodiment, the first line segment 311a and the fourth line segment 312b are collinearly arranged. The source line 20 closest to the first signal line group 310 is parallel to the first line segment 311a. The source line 20 closest to the first signal line group 310 extends in a direction perpendicular to the first direction X. The first line segment 311a and the fourth line segment 312b are located at the same distance from the source line 20. The coupling effects of the first line segment 311a and the fourth line segment 312b on the source line 20 offset each other, reducing the coupling effects on the source line 20. The third line segment 312a and the second line segment 311b are collinearly arranged. The source line 20 closest to the first signal line group 310 is parallel to the third line segment 312a. The third line segment 312a and the second line segment 311b are located at the same distance from the source line 20. The coupling effects of the third line segment 312a and the second line segment 311b on the source line 20 offset each other, reducing the coupling effects on the source line 20. In this embodiment of the present invention, the positive (pulling up) and negative (pulling down) coupling effects on the source line 20 are balanced not only along a direction perpendicular to the first direction X, but also along the first direction X.

[0098] In other embodiments, the third line segment 312a and the second line segment 311b may not be collinear.

[0099] Figure 18 is a schematic top view of another display panel provided by an embodiment of the present invention. Figure 19 It is along Figure 18 EE' cross-sectional structure diagram, refer to Figure 18 and Figure 19 The first line segment 311a, the third line segment 312a, the fourth line segment 312b, and the second line segment 311b are sequentially arranged along the first direction X and in a direction away from the source line 20. Along the first direction X, the third line segment 312a is located between the first line segment 311a and the second line segment 311b. The fourth line segment 312b is located between the first line segment 311a and the second line segment 311b.

[0100] Taking the example of a first signal line 311 transmitting a positive pulse signal and a second signal line 312 transmitting a negative pulse signal, the first line segment 311a and the third line segment 312a jointly exert a coupling effect on the source line 20 that tends to raise the potential on the source line 20. The fourth line segment 312b and the second line segment 311b jointly exert a coupling effect on the source line 20 that tends to lower the potential on the source line 20. Thus, the first line segment 311a, the second line segment 311b, the third line segment 312a, and the fourth line segment 312b jointly exert a coupling effect on the source line 20 that simultaneously "raises the potential on the source line 20" and "lowers the potential on the source line 20." These two effects offset each other, thereby reducing the coupling effect on the source line 20 caused by the first signal line group 310.

[0101] Optionally, refer to Figure 18 and Figure 19 The first signal line 311 further includes a first connecting line segment 311c, which connects the first line segment 311a and the second line segment 311b. In a direction perpendicular to the plane of the substrate 10, the first connecting line segment 311c overlaps with the third line segment 312a, and the first connecting line segment 311c overlaps with the fourth line segment 312b. The first connecting line segment 311c forms an overlapping capacitor with the third line segment 312a, and the first connecting line segment 311c forms an overlapping capacitor with the fourth line segment 312b, thereby reducing the coupling effect between the first signal line 311 and the second signal line 312 on the source line 20.

[0102] For example, refer to Figure 18 and Figure 19 A first line segment 311a is electrically connected to a second line segment 311b via multiple first connecting line segments 311c. In a direction perpendicular to the plane of the substrate 10, multiple first connecting line segments 311c overlap with the same third line segment 312a in different layers, and multiple first connecting line segments 311c overlap with the same fourth line segment 312b in different layers. In this embodiment of the present invention, by providing multiple first connecting line segments 311c, the multiple first connecting line segments 311c and the third line segment 312a form multiple overlapping capacitors. The multiple first connecting line segments 311c and the fourth line segment 312b form multiple overlapping capacitors, thereby increasing the capacitance value and reducing the coupling effect of the first signal line 311 and the second signal line 312 on the source line 20.

[0103] For example, refer to Figure 18 and Figure 19 The first line segment 311a, the second line segment 311b, the third line segment 312a, and the fourth line segment 312b are arranged on the same layer. The third line segment 312a and the fourth line segment 312b are electrically connected on the same layer. The first connecting line segment 311c is on a different layer from the first line segment 311a and is electrically connected to the first line segment 311a via a connecting via. The first connecting line segment 311c is on a different layer from the second line segment 311b and is electrically connected to the second line segment 311b via a connecting via.

[0104] Optionally, refer to Figure 18, along the first direction X, the distance between the first line segment 311a and the source line 20 is L11, the distance between the second line segment 311b and the source line 20 is L12, the distance between the third line segment 312a and the source line 20 is L13, and the distance between the fourth line segment 312b and the source line 20 is L14. Along the first direction X, the line width of the first line segment 311a is D11, the line width of the second line segment 311b is D12, the line width of the third line segment 312a is D13, and the line width of the fourth line segment 312b is D14. Let K1 = L11 × D11 + L12 × D12, and K2 = L13 × D13 + L14 × D14, satisfying: Greater than 0.7 and less than 1.3. In the embodiment of the present invention, the sum of the coupling effect of the first line segment 311a on the source line 20 and the coupling effect of the second line segment 311b on the source line 20 is approximately equal to the sum of the coupling effect of the third line segment 312a on the source line 20 and the coupling effect of the fourth line segment 312b on the source line 20. If the value is less than 0.7, the sum of the coupling effects of the first line segment 311a and the second line segment 311b on the source line 20 will be much smaller than the sum of the coupling effects of the third line segment 312a and the fourth line segment 312b on the source line 20. As a result, after the coupling effects are offset, the coupling effect of the second signal line 312 on the source line 20 is greater. If the coupling effect is greater than 1.3, the sum of the coupling effect of the first line segment 311a on the source line 20 and the coupling effect of the second line segment 311b on the source line 20 will be much greater than the sum of the coupling effect of the third line segment 312a on the source line 20 and the coupling effect of the fourth line segment 312b on the source line 20. As a result, after the coupling effects are offset, the coupling effect of the first signal line 311 on the source line 20 is greater, and thus by setting When the value is greater than 0.7 and less than 1.3, the coupling effect of the first signal line 311 on the source line 20 can be similar to the coupling effect of the second signal line 312 on the source line 20 , thereby reducing the coupling effect of the first signal line 311 and the second signal line 312 on the source line 20 .

[0105] As an embodiment, D11 = D12 = D13 = D14, which reduces the difficulty of manufacturing the first signal line 311 and the second signal line 312. K1 can also be set to K2 to further reduce the coupling effect of the first signal line 311 and the second signal line 312 on the source line 20.

[0106] It should be noted that the above relationship Greater than 0.7 and less than 1.3, applicable to all the above embodiments of the present invention, for example, also applicable to Figure 2 and Figure 16 The embodiment shown.

[0107] An embodiment of the present invention further provides a display device. Figure 20 Schematic diagram of a display device according to an embodiment of the present invention. Figure 20 The display device includes a display panel according to any embodiment of the present invention. Therefore, the display device provided by the embodiment of the present invention has the corresponding beneficial effects of the aforementioned display panel, which will not be described in detail here. For example, the display device can be an electronic device such as a mobile phone, a computer, a smart wearable device (e.g., a smart watch), and an in-vehicle display device, which is not limited in the embodiment of the present invention.

[0108] For example, refer to Figure 14 and Figure 20 The display device further includes at least one driver chip 40, which is electrically connected to the bonding pad 700. The driver chip 40 provides data signals to the display source lines 20 and provides electrical signals to the signal lines (including the first signal line 311 and the second signal line 312) of the signal line group 30. The electrical signals may be, for example, clock control signals.

[0109] For example, refer to Figure 14 and Figure 20 The display device further includes two driver chips 40, namely a first driver chip 41 and a second driver chip 42. The first driver chip 41 is electrically bonded to the bonding pad 700 in the first bonding area 710, and the second driver chip 42 is electrically bonded to the bonding pad 700 in the second bonding area 720.

[0110] For example, refer to Figure 14 and Figure 20 The first driver chip 41 is located in the first binding area 710, and the second driver chip 42 is located in the second binding area 720. The driver chip 40 is directly bonded to the bonding pad 700 of the display panel. In other embodiments, the driver chip 40 may also be located on a flexible circuit board, which is bonded to the bonding pad 700 of the display panel. The driver chip 40 is electrically connected to the bonding pad 700 via the flexible circuit board.

[0111] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: comprising a display area and a non-display area, wherein the non-display area is located outside the display area; substrate; a source line, located in the non-display area; a signal line group located in the non-display area and on the same side of the substrate as the source line, comprising a first signal line group located on one side of the source line along a first direction parallel to the plane of the substrate; the first signal line group comprising a first signal line and a second signal line, the first signal line and the second signal line transmitting pulse signals of opposite polarities; The first signal line includes a first line segment and a second line segment coupled to each other, and the second signal line includes a third line segment and a fourth line segment coupled to each other; Along the first direction, the distance between the first line segment and the source line is less than or equal to the distance between the third line segment and the source line; Along the first direction, a distance between the second line segment and the source line is greater than or equal to a distance between the fourth line segment and the source line.

2. The display panel according to claim 1, wherein: The first signal line further includes a first connecting line segment, the first connecting line segment connecting the first line segment and the second line segment; The second signal line further includes a second connecting line segment, which connects the third line segment and the fourth line segment and is perpendicular to the plane of the substrate. The second connecting line segment and the first connecting line segment overlap in different layers.

3. The display panel according to claim 2, wherein: The first line segment, the second line segment, the third line segment, the fourth line segment and the first connecting line segment are in the same layer.

4. The display panel according to claim 2, wherein: The length of one of the first line segments is equal to the length of one of the fourth line segments, and the length of one of the second line segments is equal to the length of one of the third line segments.

5. The display panel according to claim 2, wherein: The first signal line includes a first line segment and a second line segment, and the second signal line includes a third line segment and a fourth line segment.

6. The display panel according to claim 2, wherein: The first signal line includes a plurality of first line segments and a plurality of second line segments, and the first line segments and the second line segments are alternately arranged; The second signal line includes a plurality of third line segments and a plurality of fourth line segments, and the third line segments and the fourth line segments are alternately arranged.

7. The display panel according to claim 6, wherein: The first signal line further includes a third connecting line segment, and the first line segment is connected to the second line segment via the first connecting line segment or the third connecting line segment; The second signal line further includes a fourth connecting line segment, and the third line segment is connected to the fourth line segment via the second connecting line segment or the fourth connecting line segment; The first connecting line segment and the fourth connecting line segment are in the same layer, the third connecting line segment and the second connecting line segment are in the same layer, and perpendicular to the direction of the plane where the substrate is located, the third connecting line segment and the fourth connecting line segment overlap in different layers.

8. The display panel according to claim 1, wherein: Also includes: The data line is at least partially located in the display area and coupled to the source line.

9. The display panel according to claim 8, wherein: Also includes: a multi-way selection circuit, located in the non-display area, comprising a switching transistor; A first electrode of the switch transistor is coupled to the data line, a second electrode of the switch transistor is coupled to the source line, and a gate of the switch transistor is coupled to the first signal line or the second signal line.

10. The display panel according to claim 9, wherein: A gate of the switch transistor is coupled to the first signal line and electrically insulated from the second signal line.

11. The display panel according to claim 9, wherein The switch transistor includes a first sub-switch transistor and a second sub-switch transistor, wherein a first electrode of the first sub-switch transistor is electrically connected to a first electrode of the second sub-switch transistor, and a second electrode of the first sub-switch transistor is electrically connected to a second electrode of the second sub-switch transistor; A gate of the first sub-switch transistor is coupled to the first signal line, and a gate of the second sub-switch transistor is coupled to the second signal line.

12. The display panel according to claim 1, wherein The first signal line group further includes a third signal line and a fourth signal line; the third signal line and the fourth signal line transmit pulse signals of opposite polarities, and the third signal line and the first signal line transmit pulse signals of the same polarity; The third signal line includes a fifth line segment and a sixth line segment coupled to each other, and the fourth signal line includes a seventh line segment and an eighth line segment coupled to each other; Along the first direction, the fifth line segment is located between the first line segment and the third line segment, and the seventh line segment is located on a side of the third line segment away from the first line segment; Along the first direction, the eighth line segment is located between the fourth line segment and the second line segment, and the sixth line segment is located on a side of the second line segment away from the fourth line segment.

13. The display panel according to claim 1, wherein: The first signal line group further includes a third signal line and a fourth signal line; the third signal line and the fourth signal line transmit pulse signals of opposite polarities, and the third signal line and the first signal line transmit pulse signals of the same polarity; The third signal line includes a fifth line segment and a sixth line segment coupled to each other, and the fourth signal line includes a seventh line segment and an eighth line segment coupled to each other; Along the first direction, the seventh line segment is located on a side of the third line segment away from the first line segment, and the fifth line segment is located on a side of the seventh line segment away from the third line segment; Along the first direction, the sixth line segment is located on a side of the second line segment away from the fourth line segment, and the eighth line segment is located on a side of the sixth line segment away from the second line segment.

14. The display panel according to claim 8, wherein The plurality of data lines are arranged along a second direction, and the first direction intersects the second direction; The display panel further includes: a first source line group and a second source line group, which are located on the same side of the display area and arranged along the second direction, and each includes a plurality of the source lines; Along the second direction, the first signal line group is located between the first source line group and the second source line group.

15. The display panel according to claim 14, wherein: The non-display area includes a first binding area and a second binding area; The first binding region is located on a side of the first source line group away from the display region, and the binding pads of the first binding region are electrically connected to the source lines in the first source line group; the second binding region is located on a side of the second source line group away from the display region, and the binding pads of the second binding region are electrically connected to the source lines in the second source line group; In the first signal line group, the first signal line and the second signal line are electrically connected to different bonding pads in the first bonding area respectively; The signal line group further includes a second signal line group, the second signal line group being located on one side of the second source line group along a third direction, the third direction being parallel to the plane of the substrate and intersecting the first direction and the second direction; the second signal line group includes a fifth signal line and a sixth signal line, the fifth signal line and the sixth signal line transmitting pulse signals of opposite polarities; In the second signal line group, the fifth signal line and the sixth signal line are electrically connected to different bonding pads in the second bonding area, respectively.

16. The display panel according to claim 8, wherein The plurality of data lines are arranged along the second direction and extend along a fourth direction, and any two of the first direction, the second direction and the fourth direction intersect; A length of the display area along the second direction is greater than a length of the display area along the fourth direction.

17. The display panel according to claim 1, wherein: In a direction perpendicular to the plane where the substrate is located, the first line segment and the third line segment overlap in different layers, and the second line segment and the fourth line segment overlap in different layers.

18. The display panel according to claim 17, wherein: The first line segment is electrically connected to the second line segment in different layers, and is in the same layer as the fourth line segment; The third line segment is electrically connected to the fourth line segment in different layers, and is in the same layer as the second line segment.

19. The display panel according to claim 1, wherein The first line segment, the third line segment, the fourth line segment, and the second line segment are sequentially arranged along the first direction and in a direction away from the source line.

20. The display panel according to claim 19, wherein The first signal line further includes a first connecting line segment, the first connecting line segment connecting the first line segment and the second line segment; In a direction perpendicular to the plane where the substrate is located, the first connecting line segment overlaps with the third line segment in a different layer, and overlaps with the fourth line segment in a different layer.

21. The display panel according to claim 1, wherein Along the first direction, the distance between the first line segment and the source line is L11, the distance between the second line segment and the source line is L12, the distance between the third line segment and the source line is L13, and the distance between the fourth line segment and the source line is L14; The line width of the first line segment is D11, the line width of the second line segment is D12, the line width of the third line segment is D13, and the line width of the fourth line segment is D14; Let K1 = L11 × D11 + L12 × D12, K2 = L13 × D13 + L14 × D14, which satisfies: Greater than 0.7 and less than 1.

3.

22. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 21.

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