Display panel and display device

Abstract

A display panel comprises: a base substrate (10); a plurality of touch electrodes (11), at least partly located on the base substrate (10) in a display area (A); a plurality of touch leads (12), located on the base substrate (10); one end of the touch lead (12) is coupled to the touch electrode (11), and the other end is located in a peripheral area (C), the plurality of touch leads (12) in the display panel are divided into a plurality of touch lead groups (12M), each touch lead group (12M) comprises a plurality of touch leads (12); a plurality of data leads (13), located on the base substrate (10) in the peripheral area (C), A plurality of data leads (13) in a display panel are divided into a plurality of data lead groups (13M), each data lead group (13M) comprising a plurality of data leads (13); a touch lead group (12M) and a data lead group (13M) are alternately distributed; at least one shielding line (14) is located on a substrate (10) in a peripheral area (C); the orthographic projection of the shielding line (14) on the substrate (10) is located between the orthographic projection of the touch lead (12) on the substrate (10) and the orthographic projection of the data lead (13) on the substrate (10), thereby alleviating mutual interference between touch signals and data signals. A display device is also provided.

Description

Technical Field

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

[0002] Organic Light-Emitting Diode (OLED) has the advantages of self-luminescence, fast response, wide viewing angle, high brightness, bright colors, and thinness. When OLED displays use touch display driver integration (TDDI) chips, the touch leads and data leads are introduced into the TDDI chip at the same time. Since there are many touch leads in OLED displays, the coupling capacitance between the touch leads and the data leads will cause the touch signal and the data signal to interfere with each other. Summary of the invention

[0003] The display panel provided by the present disclosure includes: a display area and a peripheral area located on at least one side of the display area;

[0004] The display panel further includes:

[0005] substrate substrate;

[0006] a plurality of touch electrodes, at least partially located on the base substrate in the display area;

[0007] A plurality of touch leads are located on the substrate; one end of the touch lead is coupled to the touch electrode, and the other end is located in the peripheral area; the plurality of touch leads in the display panel are divided into a plurality of touch lead groups; the touch lead group includes a plurality of touch leads;

[0008] A plurality of data leads are located on the substrate in the peripheral area; the plurality of data leads in the display panel are divided into a plurality of data lead groups; the data lead group includes a plurality of data leads; at least part of the touch lead group and the data lead group are alternately distributed;

[0009] At least one shielding line is located on the base substrate in the peripheral area; the orthographic projection of the shielding line on the base substrate is located between the orthographic projection of the touch lead on the base substrate and the orthographic projection of the data lead on the base substrate.

[0010] Optionally, in an embodiment of the present disclosure, the peripheral area includes: a first fan-out area, a second fan-out area located on a side of the first fan-out area away from the display area, and a bending area located between the first fan-out area and the second fan-out area;

[0011] The shielding line is located in at least one of the first fan-out area, the bending area, and the second fan-out area.

[0012] Optionally, in the embodiment of the present disclosure, it further includes: a plurality of first electrodes, a second electrode located on a side of the first electrode away from the base substrate, and a light-emitting layer located between the first electrode and the second electrode;

[0013] The orthographic projection of the shielding line on the base substrate has an overlapping area with the orthographic projection of the second electrode on the base substrate, and does not overlap with the orthographic projection of the touch electrode on the base substrate.

[0014] Optionally, in the embodiment of the present disclosure, it further includes: an encapsulation layer located on a side of the second electrode away from the substrate;

[0015] The shielding wire comprises: a first sub-shielding wire and a second sub-shielding wire;

[0016] The first sub-shielding line is located at a side of the packaging layer away from the substrate;

[0017] The second sub-shielding line is located on a side of the first electrode close to the base substrate;

[0018] The orthographic projection of the first end of the first sub-shielding line on the base substrate is located within the range of the orthographic projection of the second electrode on the base substrate, and the second end of the first sub-shielding line is located in the first fan-out area; the second sub-shielding line is located in the first fan-out area, the bending area and the second fan-out area;

[0019] The second end of the first sub-shielding line is coupled to the second sub-shielding line through a first via hole, and the first via hole penetrates the insulating layer between the first sub-shielding line and the second sub-shielding line.

[0020] Optionally, in an embodiment of the present disclosure, the touch lead includes: a first lead portion and a second lead portion;

[0021] The first lead portion is located at a side of the packaging layer away from the substrate;

[0022] The second lead portion is located on a side of the first electrode close to the base substrate;

[0023] The first end of the first lead portion is coupled to the touch electrode, and the second end is located in the first fan-out area; the second lead portion is located in the first fan-out area, the bending area, and the second fan-out area;

[0024] The second end of the first lead portion is coupled to the second lead portion through a first through hole, and the first through hole penetrates the insulating layer between the first lead portion and the second lead portion;

[0025] The second sub-shielding line and the second lead portion are located in the same film layer.

[0026] Optionally, in the embodiment of the present disclosure, the first sub-shielding line includes: a first wire, and a second wire located on a side of the first wire close to the substrate; the first wire and the second wire are coupled through a second through hole, and the second through hole penetrates the insulating layer between the first wire and the second wire;

[0027] The first lead portion includes: a first lead, and a second lead located on a side of the first lead close to the substrate; the first lead and the second lead are coupled through a third through hole, and the third through hole penetrates the insulating layer between the first lead and the second lead;

[0028] The first conductive line and the first lead are located in the same film layer, and the second conductive line and the second lead are located in the same film layer.

[0029] Optionally, in the embodiment of the present disclosure, the shielding line further comprises: a third sub-shielding line located in the second fan-out area;

[0030] The third sub-shielding line is located on a side of the second sub-shielding line close to the base substrate;

[0031] The second sub-shielding line is coupled to the third sub-shielding line through a second via hole, the second via hole penetrates the insulating layer between the second sub-shielding line and the third sub-shielding line, and the second via hole is located in the second fan-out area.

[0032] Optionally, in the embodiment of the present disclosure, the shielding line further comprises: a fourth sub-shielding line located in the second fan-out area;

[0033] The fourth sub-shielding line is located on a side of the third sub-shielding line close to the substrate;

[0034] The third sub-shielding line is coupled to the fourth sub-shielding line through a third via hole; the third via hole penetrates the insulating layer between the third sub-shielding line and the fourth sub-shielding line.

[0035] Optionally, in the embodiment of the present disclosure, in the peripheral area, the plurality of data leads in the display panel are divided into: a plurality of first data leads located in a first metal layer, and a plurality of second data leads located in a second metal layer; the second metal layer is located on a side of the first metal layer close to the base substrate;

[0036] The orthographic projections of the first data leads on the base substrate are alternately distributed with the orthographic projections of the second data leads on the base substrate.

[0037] Optionally, in the embodiment of the present disclosure, the fourth sub-shielding line is provided at the same layer as at least one of the first data lead line and the second data lead line.

[0038] Optionally, in the embodiment of the present disclosure, the shielding line is located in a gap between the touch lead group and the data lead group.

[0039] Optionally, in an embodiment of the present disclosure, the display panel includes a plurality of the shielding lines; the plurality of the shielding lines in the display panel include: a plurality of grounding lines;

[0040] At least one grounding line is disposed in a gap between adjacent touch lead sets and data lead sets.

[0041] Optionally, in the embodiment of the present disclosure, the plurality of shielding lines in the display panel further include: a plurality of suspended touch leads;

[0042] At least one suspended touch lead is disposed in a gap between the adjacent touch lead groups and the data lead groups, and the suspended touch lead is located between the ground line and the touch lead group.

[0043] Optionally, in the embodiment of the present disclosure, it further includes: a touch shielding line located on the base substrate;

[0044] The peripheral area includes: a first peripheral area and a second peripheral area that are arranged opposite to each other, and a third peripheral area and a fourth peripheral area that are arranged opposite to each other; the shielding line is located in the first peripheral area;

[0045] The first end and the second end of the touch shielding line are located in the first peripheral area, the touch shielding line passes through the second peripheral area, the third peripheral area and the fourth peripheral area, and the touch shielding line surrounds each of the touch electrodes in the display panel.

[0046] Optionally, in an embodiment of the present disclosure, the touch shielding line in the display panel includes: a first touch shielding line and a second touch shielding line;

[0047] The second touch shielding line is located on a side of the first touch shielding line close to the touch electrode.

[0048] Optionally, in the embodiment of the present disclosure, the first touch shielding line includes: a first sub-touch shielding line, and at least two second sub-touch shielding lines;

[0049] The first sub-touch shielding line is located in the second peripheral area, the third peripheral area, and the fourth peripheral area; the second sub-touch shielding line is coupled to the first sub-touch shielding line, and the second sub-touch shielding line is located in the first peripheral area.

[0050] Optionally, in an embodiment of the present disclosure, in the second peripheral region, the third peripheral region, and the fourth peripheral region, a line width of the first touch shielding line is greater than a line width of the second touch shielding line.

[0051] Correspondingly, an embodiment of the present disclosure further provides a display device, which includes: any one of the above-mentioned display panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A schematic diagram of a planar structure of a display panel provided in an embodiment of the present disclosure;

[0053] Figure 2 for Figure 1 An enlarged schematic diagram of the middle peripheral area C;

[0054] Figure 3 for Figure 2 The enlarged schematic diagram of the dotted box Q1;

[0055] Figure 4 for Figure 3 The enlarged schematic diagram of the dotted box Q2;

[0056] Figure 5 Another schematic diagram of the planar structure of the display panel provided by the embodiment of the present disclosure;

[0057] Figure 6 A schematic cross-sectional view of a display panel within a display area provided by an embodiment of the present disclosure;

[0058] Figure 7 for Figure 4 The cross section at the dotted line L1 is shown;

[0059] Figure 8 for Figure 4 A schematic cross-sectional view at the dotted line L2;

[0060] Fig. 9 for Figure 4 A schematic cross-sectional view at the dotted line L3;

[0061] Fig.10 for Figure 4 Another schematic cross-sectional view at the dotted line L3;

[0062] Fig.11 for Figure 4 Another schematic cross-sectional view at the dotted line L3;

[0063] Fig.12 for Figure 4 Another schematic cross-sectional view at the dotted line L3;

[0064] Fig.13 for Figure 3 The enlarged schematic diagram of the dotted box Q3;

[0065] Fig.14 for Figure 3 A schematic cross-sectional view at the dashed box Q4;

[0066] Fig.15 Another schematic diagram of the planar structure of the display panel provided in the embodiment of the present disclosure. DETAILED DESCRIPTION

[0067] To address the problem of mutual interference between touch signals and data signals in an OLED display, embodiments of the present disclosure provide a display panel and a display device.

[0068] The following is a detailed description of the specific implementation of the display panel and display device provided by the embodiment of the present disclosure in conjunction with the accompanying drawings. The thickness and shape of each film layer in the accompanying drawings do not reflect the actual proportion, and the purpose is only to illustrate the content of the present disclosure.

[0069] Figure 1 A schematic diagram of a planar structure of a display panel provided in an embodiment of the present disclosure is shown in FIG. Figure 1 As shown, the display panel provided by the embodiment of the present disclosure may include: a display area A, and a peripheral area C located on at least one side of the display area A. Figure 2 for Figure 1 A magnified schematic diagram of the middle peripheral area C. Figure 3 for Figure 2 The enlarged schematic diagram of the dotted box Q1 in the middle, combined with Figures 1 to 3 As shown, the peripheral area C may include: a first fan-out area F1, a second fan-out area F2 located on a side of the first fan-out area F1 away from the display area A, and a bending area B located between the first fan-out area F1 and the second fan-out area F2.

[0070] Figure 4 for Figure 3 The enlarged schematic diagram of the dotted box Q2, Figure 5 Another schematic diagram of the planar structure of the display panel provided in the embodiment of the present disclosure, combined with Figures 3 to 5 The display panel provided in the embodiment of the present disclosure may further include:

[0071] Base substrate 10;

[0072] The plurality of touch electrodes 11 are at least partially located on the base substrate 10 in the display area A. In a specific implementation, most of the touch electrodes 11 in the display panel are located inside the display area A. In order to ensure the touch effect at the edge of the display area A, some touch electrodes 11 may exceed the edge of the display area A at the edge. Of course, in some display panels with lower requirements for the touch effect, all the touch electrodes 11 may also be located inside the display area A, which is not limited here.

[0073] A plurality of touch leads 12 are disposed on the base substrate 10; one end of the touch lead 12 is coupled to the touch electrode 11, and the other end is disposed in the peripheral area C; the plurality of touch leads 12 in the display panel are divided into a plurality of touch lead groups 12M, and the touch lead group 12M includes a plurality of touch leads 12;

[0074] A plurality of data leads 13 are located on the base substrate 10 in the peripheral area C; the plurality of data leads 13 in the display panel are divided into a plurality of data lead groups 13M; the data lead group 13M includes a plurality of data leads 13; at least part of the touch lead group 12M in the display panel is alternately distributed with the data lead group 13M;

[0075] At least one shielding line 14 is located on the base substrate 10 in the peripheral area C; the orthographic projection of the shielding line 14 on the base substrate 10 is located between the orthographic projection of the touch lead 12 on the base substrate 10 and the orthographic projection of the data lead 13 on the base substrate 10 .

[0076] In the display panel provided by the embodiment of the present disclosure, by setting at least one shielding line, and the orthographic projection of the shielding line on the substrate is located between the orthographic projection of the touch lead on the substrate and the orthographic projection of the data lead on the substrate, the electric field generated by the touch lead can be shielded to avoid the formation of coupling capacitance between the touch lead and the data lead, thereby alleviating the mutual interference between the touch signal and the data signal, and further improving the display effect and touch effect of the display panel.

[0077] In practical applications, the shielding wire can be arranged in the same film layer as the touch lead, or the shielding wire can be arranged in the same film layer as the data lead, or the shielding wire is arranged in the film layer between the touch lead and the data lead. Since the electric field generated by the touch lead is radial, by arranging the shielding wire in this way, the electric field generated by the touch lead can be effectively shielded, and the mutual interference between the touch signal and the data signal can be alleviated.

[0078] Figure 5 In the figure, the touch control electrode 11 is taken as a self-capacitance electrode for illustration. In a specific implementation, the touch control electrode 11 may also be a mutual capacitance electrode, which is not limited here. Figure 5As shown, at least part of the touch electrodes 11 in the display panel are distributed in the display area A, and touch leads 12 are provided to transmit touch signals.

[0079] like Figure 2 and Figure 3 As shown, one end of the touch lead is coupled to the touch electrode in the display area, and the other end is coupled to the integrated driver chip IC after passing through the first fan-out area F1, the bending area B, and the second fan-out area F2. The integrated driver chip IC can be a touch display driver integration (TDDI) chip. Figure 2 The coupling of the touch lead and the integrated driver chip IC is taken as an example for illustration. In a specific implementation, the touch lead can also be coupled to the driver chip through a flexible circuit board. The connection method of the touch lead is not limited here.

[0080] Continue to refer to Figure 2 and Figure 3 The display panel is provided with a plurality of sub-pixels arranged in an array in the display area A, and a plurality of data lines are provided in the display area A, and the data lines are usually coupled to a column of sub-pixels. The extension direction of the data lines is consistent with that of the touch leads. The data lines are coupled to the data leads, and the data leads are coupled to the integrated driver chip IC after passing through the first fan-out area F1, the bending area B, and the second fan-out area F2. In the first fan-out area F1, the bending area B, and the second fan-out area F2, the touch leads and the data leads are distributed in groups, that is, the plurality of touch leads in the display panel are divided into a plurality of touch lead groups 12M, and the plurality of data leads are divided into a plurality of data lead groups 13M, so that it is convenient to lead out the touch signals and the data signals.

[0081] In some areas of the peripheral area C close to the display area A, due to the limitation of the wiring space, some touch lead groups 12M and data lead groups 13M may overlap in the direction perpendicular to the base substrate 10. Therefore, in the embodiment of the present disclosure, at least some of the touch lead groups 12M and data lead groups 13M in the display panel are alternately distributed. Of course, if the wiring space is large enough, each touch lead group 12M and each data lead group 13M in the display panel can be alternately distributed, which is not limited here.

[0082] In addition, the shielding line may be arranged to be located in at least one of the first fan-out region, the bending region, and the second fan-out region. Figure 2 and Figure 3Since the size of the integrated driver chip IC is relatively small, in order to couple multiple touch leads and multiple data leads to the position of the integrated driver chip IC, the first fan-out area F1 and the second fan-out area F2 are both set to be fan-shaped with a larger width on the side close to the display area A and a smaller width on the side away from the display area A. In addition, at least in the second fan-out area F2, a slant line segment inclined toward the integrated driver chip IC is set in the touch lead and the data lead. In the first fan-out area F1, the bending area B and the second fan-out area F2, the distance between the adjacent touch leads and the data leads is relatively close. Therefore, a shielding line is set in at least one of the first fan-out area F1, the bending area B and the second fan-out area F2, which can effectively shield the coupling capacitance formed between the touch lead and the data lead, and greatly reduce the mutual interference between the touch signal and the data signal.

[0083] like Figure 2 As shown, in order to provide power signals to the sub-pixels in the display area A, the display panel may further include: a high-level power voltage signal line VDD and a low-level power voltage signal line VSS located in the non-display area. In addition, the high-level power voltage signal line VDD and the low-level power voltage signal line VSS are coupled to the flexible circuit board FPC.

[0084] Combination Figure 2 and Figure 3 In the above-mentioned display panel provided by the embodiment of the present disclosure, by setting the first fan-out area F1, the bending area B and the second fan-out area F2, after the display panel is manufactured, the display panel can be bent at the position of the bending area B, so as to bend the second fan-out area F2 of the display panel to the side of the display panel away from the display surface, so that the signal lines such as the touch leads and the data leads in the second fan-out area F2 are coupled to the integrated driver chip IC on the side of the display area away from the display surface, thereby greatly reducing the frame area of ​​the display panel.

[0085] In practical applications, in the above display panel provided by the embodiment of the present disclosure, Figure 4 As shown, the shielding line 14 is located in the first fan-out area F1, the bending area B and the second fan-out area F2;

[0086] The shape of the shielding line 14 may be consistent with the shape of the data lead line 13 located in the first fan-out region F1 , the bending region B, and the second fan-out region F2 .

[0087] Since the distance between the adjacent touch leads 12 and the data leads 13 in the first fan-out region F1, the bending region B and the second fan-out region F2 is relatively close, the shielding line 14 is arranged in the first fan-out region F1, the bending region B and the second fan-out region F2, so that the coupling capacitance formed between the touch leads 12 and the data leads 13 can be more effectively shielded, and the mutual interference between the touch signal and the data signal can be greatly reduced. In addition, the shape of the shielding line 14 is arranged to be consistent with the shape of the data leads 13 located in the first fan-out region F1, the bending region B and the second fan-out region F2, so that the wiring space between the touch leads 12 and the data leads 13 can be fully utilized, so that the length of the shielding line 14 is longer, and the shielding line 14 has a better shielding effect.

[0088] Figure 6 A schematic cross-sectional view of a display panel in a display area provided by an embodiment of the present disclosure, such as Figure 6 As shown, the display panel in the embodiment of the present disclosure may further include: a plurality of first electrodes 151, a second electrode 152 located on the side of the first electrode 151 away from the base substrate 10, and a light-emitting layer 153 located between the first electrode 151 and the second electrode 152; wherein the second electrode 152 may be provided on the entire surface. A pixel defining layer 17 may also be provided between the film layer where the first electrode 151 is located and the light-emitting layer 153, and the pixel defining layer 17 is used to define the area of ​​each sub-pixel, that is, the position where the opening of the pixel defining layer 17 in the figure is located corresponds to a sub-pixel.

[0089] In addition, in order to drive each sub-pixel to emit light, the display panel may further include: thin film transistors TFT and capacitor structures and other components, wherein the thin film transistor TFT may include: an active layer Ac, an input terminal S, an output terminal D, and a gate Ga1, the output terminal D of the thin film transistor TFT is coupled to the first electrode 151 through a conductive connection portion LB, and the gate Ga1 and the third electrode Ga2 form a capacitor structure. In order to insulate the conductive components of different film layers from each other, the display panel may further include: a first gate insulating layer GI1 located between the active layer Ac and the gate Ga1, a second gate insulating layer GI2 located between the gate Ga1 and the third electrode Ga2, an interlayer insulating layer ILD located between the third electrode Ga2 and the input terminal S, a first flat layer PLN1 located between the input terminal S and the conductive connection portion LB, and a second flat layer PLN2 located between the conductive connection portion LB and the first electrode 111.

[0090] Combination Figures 4 to 6 In the embodiment of the present disclosure, the orthographic projection of the shielding line 14 on the base substrate 10 has an overlapping area with the orthographic projection of the second electrode 152 on the base substrate 10. Figure 4It can be seen that in the area covered by the second electrode 152 near the edge of the first fan-out area F1, there is still a certain space between the touch lead 12 and the data lead 13. Therefore, extending the shielding line 14 to the area covered by the second electrode 152 can further increase the shielding effect of the shielding line 14. Figure 5 As shown, the orthographic projection of the shielding wire 14 on the base substrate 10 does not overlap with the orthographic projection of the touch electrode 11 on the base substrate 10 , thereby preventing the shielding wire 14 and the touch electrode 11 from being short-circuited and affecting the touch effect of the touch electrode 11 .

[0091] In a specific implementation, in the above display panel provided by the embodiment of the present disclosure, if Figure 6 As shown, it may also include: an encapsulation layer 16 located on the side of the second electrode 152 away from the base substrate 10, a touch electrode layer TP located on the side of the encapsulation layer 16 away from the base substrate 10, and a touch barrier layer 18 located between the encapsulation layer 16 and the touch electrode layer TP. The encapsulation layer 16 may include: an organic film layer 162 and an inorganic film layer 161 stacked, wherein the inorganic film layer 161 may play a role in blocking water vapor and oxygen, and the organic film layer 162 may be located between two adjacent inorganic film layers 161, and may play a role in releasing stress and flattening. The touch electrode in the disclosed embodiment is located in the touch electrode layer TP.

[0092] Figure 7 for Figure 4 The cross-sectional diagram at the dotted line L1, combined with Figure 4 , Figure 6 and Figure 7 , the shielding line 14 may include: a first sub-shielding line 141 and a second sub-shielding line 142;

[0093] The first sub-shielding line 141 is located on a side of the packaging layer 16 away from the base substrate 10;

[0094] The second sub-shielding line 142 is located on a side of the first electrode 151 close to the base substrate 10;

[0095] The orthographic projection of the first end of the first sub-shielding line 141 on the base substrate 10 is located within the range of the orthographic projection of the second electrode 152 on the base substrate, and the second end of the first sub-shielding line 141 is located in the first fan-out area F1; the second sub-shielding line 142 is located in the first fan-out area F1, the bending area B and the second fan-out area F2;

[0096] The second end of the first sub-shielding line 141 is coupled to the second sub-shielding line 142 through a first via U1 , and the first via U1 penetrates the insulating layer between the first sub-shielding line 141 and the second sub-shielding line 142 .

[0097] Since the second electrode 152 is generally arranged on the entire surface, in order to prevent the touch signal from being shielded by the second electrode 152, the touch electrode layer TP is arranged on the side of the packaging layer 16 away from the base substrate 10. Therefore, in order to effectively alleviate the mutual interference between the touch lead 12 and the data lead 13, the first sub-shielding line 141 is arranged on the side of the packaging layer 16 away from the base substrate 10. Furthermore, in order to prevent the shielding line 14 from breaking in the bending area B when the display panel is bent in the bending area B, in the embodiment of the present disclosure, the shielding line 14 is set to a first sub-shielding line 141 and a second sub-shielding line 142, and the second sub-shielding line 142 is located on the side of the first electrode 151 close to the base substrate 10, and the second end of the first sub-shielding line 141 is coupled to the second sub-shielding line 142 through a first via U1 located in the first fan-out area F1, so that the first sub-shielding line 141 is switched to the second sub-shielding line 142 in the first fan-out area F1, so that the shielding line 14 is subjected to less stress when it is bent in the bending area B, and therefore, the shielding line 14 is not easily broken in the bending area B.

[0098] In specific implementation, in the above display panel provided by the embodiment of the present disclosure, combined with Figure 4 , Figure 6 and Figure 7 , the touch lead 12 may include: a first lead portion 12a and a second lead portion 12b;

[0099] The first lead portion 12 a is located at a side of the packaging layer 16 away from the base substrate 10 , that is, the first lead portion 12 a is located in the touch electrode layer TP. In addition, a touch electrode is further disposed in the touch electrode layer TP.

[0100] The second lead portion 12 b is located on a side of the first electrode 151 close to the base substrate 10 ;

[0101] The first end of the first lead portion 12a is coupled to the touch electrode, and the second end is located in the first fan-out area F1; the second lead portion 12b is located in the first fan-out area F1, the bending area B, and the second fan-out area F2;

[0102] The second end of the first lead portion 12a is coupled to the second lead portion 12b via a first through hole V1, and the first through hole V1 penetrates the insulating layer between the first lead portion 12a and the second lead portion 12b;

[0103] The second sub-shielding line 142 and the second lead portion 12 b are located in the same film layer.

[0104] The display area of ​​the display panel is usually provided with a second electrode 152 disposed on the entire surface. In order to prevent the touch signal from being shielded by the second electrode 152, the touch electrode layer TP is disposed on the side of the packaging layer 16 away from the base substrate 10. In order to prevent the touch lead 12 from breaking at the bending area B when the display panel is bent at the bending area B, in the embodiment of the present disclosure, the touch lead 12 is configured to include a first lead portion 12a and a second lead portion 12b. One end of the first lead portion 12a is coupled to the touch electrode in the touch electrode layer TP, and the other end extends to the first fan-out area F1 and is coupled to the second lead portion 12b through the first through hole V1, so that the touch lead 12 is switched to the second lead portion 12b in the first fan-out area F1, so that the stress on the touch lead 12 when it is bent in the bending area B is small, and thus the touch lead 12 is not easily broken at the bending area B.

[0105] In addition, the second sub-shielding line 142 and the second lead portion 12b are located in the same film layer. During the manufacturing process, the second sub-shielding line 142 and the second lead portion 12b can be manufactured using the same patterning process, which can save manufacturing costs. Moreover, the second lead portion 12b can be located in the same film layer as the conductive connection portion LB in the display area. Therefore, the conductive connection portion LB, the second sub-shielding line 142 and the second lead portion 12b can be manufactured using the same patterning process, further reducing manufacturing costs.

[0106] Figure 8 for Figure 4 The cross-sectional diagram at the dotted line L2 is as follows: Figure 8 As shown, the first sub-shielding line 141 includes: a first wire 1411, and a second wire 1412 located on a side of the first wire 1411 close to the base substrate 10; the first wire 1411 and the second wire 1412 are coupled through a second through hole V2, and the second through hole V2 penetrates the insulating layer 19 between the first wire 1411 and the second wire 1412;

[0107] The first lead portion 12a includes: a first lead 12a1, and a second lead 12a2 located on a side of the first lead 12a1 close to the base substrate 10; the first lead 12a1 and the second lead 12a2 are coupled via a third through hole V3, and the third through hole V3 penetrates the insulating layer 19 between the first lead 12a1 and the second lead 12a2;

[0108] The first conductive line 1411 and the first lead 12a1 are located in the same film layer, and the second conductive line and the second lead are located in the same film layer.

[0109] In a specific implementation, the touch electrode in the touch electrode layer may also include: a first sub-touch electrode and a second sub-touch electrode that are stacked, and the first sub-touch electrode and the second sub-touch electrode are coupled to each other through a through hole. During the manufacturing process, the first sub-touch electrode, the first wire, and the first lead can be manufactured using the same composition process, and the second sub-touch electrode, the second wire, and the second lead can be manufactured using the same composition process to reduce manufacturing costs.

[0110] Optionally, in the above display panel provided by the embodiment of the present disclosure, Fig. 9 for Figure 4 A schematic cross-sectional view at the dotted line L3 is shown in FIG. Figure 4 and Fig. 9 As shown, the shielding line 14 may further include: a third sub-shielding line 143 located in the second fan-out region F2;

[0111] The third sub-shielding line 143 is located on a side of the second sub-shielding line 142 close to the base substrate 10;

[0112] The second sub-shielding line 142 is coupled to the third sub-shielding line 143 through a second via U2 ; the second via U2 penetrates the insulating layer between the second sub-shielding line 142 and the third sub-shielding line 143 ; the second via U2 is located in the second fan-out region F2 .

[0113] Since the electric field generated by the touch lead is radial, the double-layer routing arranged in a sampling layer is used as the shielding line 14, and the second sub-shielding line 142 and the third sub-shielding line 143 play a shielding role at the same time, which can increase the shielding performance of the shielding line 14, so that the shielding line 14 can shield a larger range, and further reduce the mutual interference between the touch signal and the data signal. In addition, the second sub-shielding line 142 and the third sub-shielding line 143 are coupled through the second via U2, which can achieve a better shielding effect compared to two discrete sub-shielding lines. In addition, setting the second via U2 in an area outside the bending area B can prevent the display panel from breaking when bending in the bending area B.

[0114] Fig.10 for Figure 4 Another cross-sectional schematic diagram at the dotted line L3, as shown in FIG. Figure 4 and Fig.10 As shown, in the above display panel provided by the embodiment of the present disclosure, the shielding line 14 may further include: a fourth sub-shielding line 144 located in the second fan-out region F2;

[0115] The fourth sub-shielding line 144 is located on a side of the third sub-shielding line 143 close to the base substrate 10;

[0116] The third sub-shielding line 143 and the fourth sub-shielding line 144 are coupled through a third via U3 ; the third via U3 penetrates the insulating layer between the third sub-shielding line 143 and the fourth sub-shielding line 144 .

[0117] Since the electric field generated by the touch lead is radial, a fourth sub-shielding line 144 is arranged on the side of the third sub-shielding line 143 close to the base substrate 10, and the fourth sub-shielding line 144 is coupled to the third sub-shielding line 143 through the third via U3, so that the second sub-shielding line 142, the third sub-shielding line 143 and the fourth sub-shielding line 144 can play a shielding role at the same time, further increasing the shielding performance of the shielding line 14, thereby further reducing the mutual interference between the control signal and the data signal.

[0118] It should be noted that in the drawings of the embodiments of the present disclosure, the second sub-shielding line 142 is coupled to the third sub-shielding line 143 through a second via U2 as an example for illustration. In specific implementation, in order to enhance the conduction performance between the second sub-shielding line 142 and the third sub-shielding line 143, the second sub-shielding line 142 may also be coupled to the third sub-shielding line 143 through more second vias U2. Similarly, the third sub-shielding line 143 may also be coupled to the fourth sub-shielding line 144 through more third vias U3.

[0119] Optionally, in the above display panel provided by the embodiment of the present disclosure, Fig.10 As shown, in the peripheral area, the multiple data leads in the display panel can be divided into: multiple first data leads 13a located in the first metal layer, and multiple second data leads 13b located in the second metal layer; the second metal layer is located on the side of the first metal layer close to the base substrate;

[0120] The orthographic projections of the first data lead lines 13 a on the base substrate 10 and the orthographic projections of the second data lead lines 13 b on the base substrate 10 are alternately distributed.

[0121] In the disclosed embodiment, the plurality of data leads in the peripheral area are divided into a plurality of first data leads 13a and a plurality of second data leads 13b, and the first data leads 13a and the second data leads 13b are located in different metal layers, and the first data leads 13a and the second data leads 13b are alternately distributed. In this way, adjacent data leads are located in different metal layers, which can prevent adjacent data leads from interfering with each other, improve the display effect of the display panel, and reduce the overall width of the wiring, which is conducive to the narrow frame design. Figure 6 and Fig.10The first metal layer may be the film layer where the third electrode Ga2 is located, that is, the first data lead 13a and the third electrode Ga2 may be located in the same film layer, and the second metal layer may be the film layer where the gate Ga1 is located, that is, the second data lead 13b and the gate Ga1 may be located in the same film layer. During the manufacturing process, the first data lead 13a and the third electrode Ga2 may be manufactured using the same patterning process, and the second data lead 13b and the gate Ga1 may be manufactured using the same patterning process, thereby saving manufacturing costs.

[0122] In addition, the data lead is coupled to the data line in the display area, and the data line in the display area can be located in the same film layer as the input terminal S of the thin film transistor TFT. During the manufacturing process, the input terminal S, output terminal D and data line of the thin film transistor TFT can be manufactured using the same composition process, saving manufacturing costs.

[0123] In a specific implementation, in the above display panel provided by the embodiment of the present disclosure, if Fig.10 As shown, the fourth sub-shielding line 144 can be arranged at the same layer as the first data lead line 13a; or,

[0124] Fig.11 for Figure 4 Another cross-sectional schematic diagram at the dotted line L3, as shown in FIG. Fig.11 As shown, the fourth sub-shielding line 144 can be arranged at the same layer as the second data lead line 13b; or,

[0125] Fig.12 for Figure 4 Another cross-sectional schematic diagram at the dotted line L3, as shown in FIG. Fig.12 As shown, the fourth sub-shielding line 144 is arranged on the same layer as the first data lead 13a; and, the fourth sub-shielding line 144 is arranged on the same layer as the second data lead 13b, that is, a part of the fourth sub-shielding lines 144 among the plurality of fourth sub-shielding lines 144 is arranged on the same layer as the first data lead 13a, and another part of the fourth sub-shielding lines 144 is arranged on the same layer as the second data lead 13b;

[0126] In summary, by adopting the above three methods to set the fourth sub-shielding line 144, the fourth sub-shielding line 144 and the first data lead line 13a or the second data lead line 13b can be manufactured by the same patterning process, which can save manufacturing costs.

[0127] Fig.13 for Figure 3 The enlarged schematic diagram of the dotted box Q3 is as follows: Figure 3 and Fig.13 As shown, the display panel provided in the embodiment of the present disclosure may further include: a test signal line 20 disposed in the same layer as the third sub-shielding line 143 and located in the second fan-out region F2;

[0128] The extending direction of the test signal line 20 and the extending direction of the third sub-shielding line 143 intersect each other;

[0129] The orthographic projection of the third sub-shielding line 143 on the substrate does not overlap with the orthographic projection of the test signal line 20 on the substrate.

[0130] In this way, the third sub-shielding line 143 can be prevented from crossing the test signal line 20 , thereby preventing the test effect of the test signal line 20 from being affected.

[0131] Fig.14 for Figure 3 The cross-sectional diagram at the dotted box Q4 is shown in Figure 3 and Fig.14 As shown, in the above display panel provided by the embodiment of the present disclosure, the shielding line 14 is located in the gap between the touch lead group 12M and the data lead group 13M.

[0132] Multiple touch leads and multiple data leads in the display panel are distributed in groups. Therefore, setting the shielding line 14 in the gap between the touch lead group 12M and the data lead group 13M can effectively shield the coupling capacitance between the touch leads and the data leads, thereby reducing the mutual interference between the touch signal and the data signal.

[0133] Optionally, in the above display panel provided by the embodiment of the present disclosure, continue to refer to Fig.14 The display panel includes a plurality of shielding wires, and the plurality of shielding wires in the display panel may include: a plurality of grounding wires 14b, and at least one grounding wire 14b is provided in the gap between the adjacent touch lead group 12M and the data lead group 13M. During the driving process, a fixed potential signal, such as a grounding signal, may be applied to the grounding wire 14b to achieve a better shielding effect of the suspended touch lead 14a and the grounding wire 14b.

[0134] In addition, the plurality of shielding lines in the display panel may further include: a plurality of suspended touch leads 14a, at least one suspended touch lead 14a is provided in the gap between the adjacent touch lead group 12M and the data lead group 13M, and the suspended touch lead 14a is located between the ground line 14b and the touch lead group 12M. In the actual driving process, a touch signal may be applied to the suspended touch lead 14a, for example, the touch signal applied to the suspended touch lead 14a may be the same as the signal in the touch lead 12, and thus, the suspended touch lead 14a is provided on both sides of the touch lead group 12M, so that the touch signal may be applied to each touch lead 12 in the touch lead group 12M and the suspended touch lead 14a at the same time.

[0135] In the embodiment of the present disclosure, Fig.14In the figure, an example is given in which a suspended touch lead 14a and three grounding wires 14b are set in the gap between the adjacent touch lead group 12M and the data lead group 13M. The number of suspended touch leads 14a and grounding wires 14b is not limited here. In specific implementation, the number of suspended touch leads 14a and grounding wires 14b can be reasonably set according to the size of the gap between the adjacent touch lead group 12M and the data lead group 13M.

[0136] Fig.15 Another schematic diagram of the planar structure of the display panel provided in the embodiment of the present disclosure is shown in FIG. Fig.15 As shown, the display panel provided in the embodiment of the present disclosure may further include: a touch shielding line (such as Fig.15 211 or 212 in FIG. 1 );

[0137] The peripheral area includes: a first peripheral area C1, a second peripheral area C2, and a third peripheral area C3 and a fourth peripheral area C4 that are arranged opposite to each other; the shielding line 14 is located in the first peripheral area C1;

[0138] The first end 211a (or 212a) and the second end 211b (or 212b) of the touch shielding line 211 (or 212) are located in the first peripheral area C1, the touch shielding line 211 (or 212) passes through the second peripheral area C2, the third peripheral area C3 and the fourth peripheral area C4, and the touch shielding line 211 (or 212) surrounds each of the touch electrodes 11 in the display panel.

[0139] In this way, by providing the touch shielding line 211 (or 212) surrounding each touch electrode 11 in the display panel, the influence of external interference on the touch electrode 11 can be shielded, thereby improving the touch effect of the display panel.

[0140] In the specific implementation, in the above display panel provided by the embodiment of the present disclosure, continue to refer to Fig.15 The touch shielding line in the display panel includes: a first touch shielding line 211 and a second touch shielding line 212; the second touch shielding line 212 is located on a side of the first touch shielding line 211 close to the touch electrode 11. In the embodiment of the present disclosure, by providing two touch shielding lines, namely the first touch shielding line 211 and the second touch shielding line 212, in practical applications, different signals can be applied to the first touch shielding line 211 and the second touch shielding line 212, thereby improving the shielding effect and further shielding the influence of external interference on the touch electrode 11.

[0141] Optionally, in the above display panel provided by the embodiment of the present disclosure, Fig.15As shown, the first touch shielding line 211 may include: a first sub-touch shielding line 2111 and at least two second sub-touch shielding lines 2112;

[0142] The first sub-touch shielding line 2111 is located in the second peripheral area C2 , the third peripheral area C3 and the fourth peripheral area C4 ; the second sub-touch shielding line 2112 is coupled to the first sub-touch shielding line 2111 and is located in the first peripheral area C1 .

[0143] That is, the first touch shield line 211 is a signal line (i.e., the first sub-touch shield line 2111) in the second peripheral area C2, the third peripheral area C3, and the fourth peripheral area C4. The first touch shield line 211 is divided into at least two signal lines (i.e., the second sub-touch shield line 2112) after extending to the first peripheral area C1. Fig.15 In the figure, the first touch shielding line 211 including three second sub-touch shielding lines 2112 is taken as an example for illustration, and in specific implementation, it can be set according to actual needs.

[0144] In this way, the first touch shielding line 211 has at least two first ends 211a and at least two second ends 211b, so that it is convenient to couple with the pins of other components. During the driving process, a fixed signal, such as a ground signal, can be applied to the first touch shielding line 211, and a touch signal can be applied to the second touch shielding line 212, so as to achieve a better shielding effect.

[0145] In practical applications, in the above display panel provided by the embodiment of the present disclosure, Fig.15 As shown, in the second peripheral area C2, the third peripheral area C3 and the fourth peripheral area C4, the line width of the first touch shielding line 211 is greater than the line width of the second touch shielding line 212. In other words, the line width of the touch shielding line farther from the touch electrode 11 is larger, and this arrangement can make the shielding effect of the touch shielding line against external interference better, so as to make the touch effect of the display panel better.

[0146] Based on the same inventive concept, the embodiment of the present disclosure also provides a display device, including any of the above display panels, and the display device can be applied to any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc. Since the principle of solving the problem of the display device is similar to that of the above display panel, the implementation of the display device can refer to the implementation of the above display panel, and the repeated parts will not be repeated.

[0147] A display device provided by an embodiment of the present disclosure may further include: an integrated driving chip;

[0148] Each touch lead, each data lead and each shielding line in the display panel are coupled to the integrated driving chip;

[0149] The display panel is bent at the bending area, and the second fan-out area and the integrated driving chip of the display panel are located on a side of the display panel away from the display surface.

[0150] In a specific implementation, after the display panel is manufactured, the display panel can be bent at the position of the bending area to bend the second fan-out area of ​​the display panel to the side of the display panel away from the display surface, so that the signal lines such as the touch leads and data leads in the second fan-out area are coupled to the integrated driver chip on the side of the display area away from the display surface, thereby greatly reducing the border area of ​​the display panel.

[0151] The display panel and display device provided by the embodiments of the present disclosure can shield the electric field generated by the touch lead and avoid the formation of coupling capacitance between the touch lead and the data lead by setting at least one shielding line, and the orthographic projection of the shielding line on the substrate is located between the orthographic projection of the touch lead on the substrate and the orthographic projection of the data lead on the substrate. This can alleviate the mutual interference between the touch signal and the data signal, thereby improving the display effect and touch effect of the display panel.

[0152] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present disclosure.

[0153] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present disclosure without departing from the spirit and scope of the embodiments of the present disclosure. Thus, if these modifications and variations of the embodiments of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

Claims

1. A display panel, wherein: include: A display area and a peripheral area located on at least one side of the display area; The display panel further includes: substrate substrate; a plurality of touch electrodes, at least partially located on the base substrate in the display area; A plurality of touch leads are located on the substrate; one end of the touch lead is coupled to the touch electrode, and the other end is located in the peripheral area; the plurality of touch leads in the display panel are divided into a plurality of touch lead groups; the touch lead group includes a plurality of touch leads; A plurality of data leads are located on the substrate in the peripheral area; the plurality of data leads in the display panel are divided into a plurality of data lead groups; the data lead group includes a plurality of data leads; at least part of the touch lead group and the data lead group are alternately distributed; At least one shielding line is located on the base substrate in the peripheral area; the orthographic projection of the shielding line on the base substrate is located between the orthographic projection of the touch lead on the base substrate and the orthographic projection of the data lead on the base substrate; The peripheral area includes: a first fan-out area, a second fan-out area located on a side of the first fan-out area away from the display area, and a bending area located between the first fan-out area and the second fan-out area; The shielding line is located in at least one of the first fan-out area, the bending area, and the second fan-out area; The display panel further comprises: a plurality of first electrodes, a second electrode located on a side of the first electrode away from the base substrate, and a light emitting layer located between the first electrode and the second electrode; The orthographic projection of the shielding line on the base substrate has an overlapping area with the orthographic projection of the second electrode on the base substrate, and does not overlap with the orthographic projection of the touch electrode on the base substrate.

2. The display panel according to claim 1, wherein: It also includes: a packaging layer located on a side of the second electrode away from the substrate; The shielding wire comprises: a first sub-shielding wire and a second sub-shielding wire; The first sub-shielding line is located at a side of the packaging layer away from the substrate; The second sub-shielding line is located on a side of the first electrode close to the base substrate; The orthographic projection of the first end of the first sub-shielding line on the base substrate is located within the range of the orthographic projection of the second electrode on the base substrate, and the second end of the first sub-shielding line is located in the first fan-out area; the second sub-shielding line is located in the first fan-out area, the bending area and the second fan-out area; The second end of the first sub-shielding line is coupled to the second sub-shielding line through a first via hole, and the first via hole penetrates the insulating layer between the first sub-shielding line and the second sub-shielding line.

3. The display panel according to claim 2, wherein: The touch lead comprises: a first lead portion and a second lead portion; The first lead portion is located at a side of the packaging layer away from the substrate; The second lead portion is located on a side of the first electrode close to the base substrate; The first end of the first lead portion is coupled to the touch electrode, and the second end is located in the first fan-out area; the second lead portion is located in the first fan-out area, the bending area, and the second fan-out area; The second end of the first lead portion is coupled to the second lead portion through a first through hole, and the first through hole penetrates the insulating layer between the first lead portion and the second lead portion; The second sub-shielding line and the second lead portion are located in the same film layer.

4. The display panel according to claim 3, wherein: The first sub-shielding line includes: a first wire, and a second wire located on a side of the first wire close to the substrate; the first wire and the second wire are coupled through a second through hole, and the second through hole penetrates the insulating layer between the first wire and the second wire; The first lead portion includes: a first lead, and a second lead located on a side of the first lead close to the substrate; the first lead and the second lead are coupled through a third through hole, and the third through hole penetrates the insulating layer between the first lead and the second lead; The first conductive line and the first lead are located in the same film layer, and the second conductive line and the second lead are located in the same film layer.

5. The display panel according to claim 2, wherein: The shielding line further comprises: a third sub-shielding line located in the second fan-out area; The third sub-shielding line is located on a side of the second sub-shielding line close to the base substrate; The second sub-shielding line is coupled to the third sub-shielding line through a second via hole, the second via hole penetrates the insulating layer between the second sub-shielding line and the third sub-shielding line, and the second via hole is located in the second fan-out area.

6. The display panel according to claim 5, wherein: The shielding line further comprises: a fourth sub-shielding line located in the second fan-out area; The fourth sub-shielding line is located on a side of the third sub-shielding line close to the substrate; The third sub-shielding line is coupled to the fourth sub-shielding line through a third via hole; the third via hole penetrates the insulating layer between the third sub-shielding line and the fourth sub-shielding line.

7. The display panel according to claim 6, wherein: In the peripheral area, the plurality of data leads in the display panel are divided into: a plurality of first data leads located in a first metal layer, and a plurality of second data leads located in a second metal layer; the second metal layer is located on a side of the first metal layer close to the base substrate; The orthographic projections of the first data leads on the base substrate are alternately distributed with the orthographic projections of the second data leads on the base substrate.

8. The display panel according to claim 7, wherein: The fourth sub-shielding line is disposed in the same layer as at least one of the first data lead line and the second data lead line.

9. The display panel according to any one of claims 1 to 8, wherein: The shielding line is located in a gap between the touch lead set and the data lead set.

10. The display panel according to claim 9, wherein: The display panel includes a plurality of the shielding lines; the plurality of the shielding lines in the display panel include: a plurality of grounding lines; At least one grounding line is disposed in a gap between adjacent touch lead sets and data lead sets.

11. The display panel according to claim 10, wherein: The plurality of shielding lines in the display panel further include: a plurality of suspended touch leads; At least one suspended touch lead is disposed in a gap between the adjacent touch lead groups and the data lead groups, and the suspended touch lead is located between the ground line and the touch lead group.

12. The display panel according to any one of claims 1 to 8, wherein: Also included: a touch shielding line located on the base substrate; The peripheral area includes: a first peripheral area and a second peripheral area that are arranged opposite to each other, and a third peripheral area and a fourth peripheral area that are arranged opposite to each other; the shielding line is located in the first peripheral area; The first end and the second end of the touch shielding line are located in the first peripheral area, the touch shielding line passes through the second peripheral area, the third peripheral area and the fourth peripheral area, and the touch shielding line surrounds each of the touch electrodes in the display panel.

13. The display panel according to claim 12, wherein: The touch shielding line in the display panel includes: a first touch shielding line and a second touch shielding line; The second touch shielding line is located on a side of the first touch shielding line close to the touch electrode.

14. The display panel according to claim 13, wherein: The first touch shielding line includes: a first sub-touch shielding line, and at least two second sub-touch shielding lines; The first sub-touch shielding line is located in the second peripheral area, the third peripheral area, and the fourth peripheral area; the second sub-touch shielding line is coupled to the first sub-touch shielding line, and the second sub-touch shielding line is located in the first peripheral area.

15. The display panel according to claim 13, wherein: In the second peripheral region, the third peripheral region, and the fourth peripheral region, the line width of the first touch shielding line is greater than the line width of the second touch shielding line.

16. A display device, wherein: include: A display panel as claimed in any one of claims 1 to 15.

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