Display panel and display device

Abstract

The display panel comprises a first insulating layer, a touch barrier layer and a first touch insulating layer, the first insulating layer is provided with a first opening for exposing a first wiring section, a third opening can be formed in the first touch insulating layer, and the patterned first touch insulating layer serves as a mask plate to etch the touch barrier layer. A second opening is formed in the touch barrier layer, and a second wiring section located on the first touch electrode layer sequentially penetrates through the third opening, the second opening and the first opening and is connected with the first wiring section. In the embodiment of the invention, only a mask pattern corresponding to the third opening needs to be added on a mask plate corresponding to the first touch insulating layer, and a mask plate does not need to be independently arranged for patterning treatment of the touch barrier layer, so that a mask process can be saved while breakage of the touch wire is avoided. The invention further provides a display device comprising 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 display devices, using a color filter layer instead of a polarizer to reduce reflection makes the display panel thinner and increases light transmittance, thereby reducing power consumption. It should be noted that the information disclosed in the above background technology section is only intended to enhance understanding of the background of the present invention and may include information that does not constitute prior art known to persons of ordinary skill in the art. Summary of the Invention

[0003] The present invention aims to overcome the problems of touch lines in the bending region being easily broken due to tensile stress and requiring many mask processes when forming second via holes in the bending region, and to provide a display panel and a display device.

[0004] According to one aspect of the present invention, a display panel is provided, which has a display area and a non-display area located outside the display area, the non-display area including a transition area and a bending area, the bending area being located on a side of the transition area away from the display area, the display panel including a driving backplane, a touch barrier layer, a first touch insulating layer and a first touch electrode layer, the driving backplane including a base substrate, a first trace segment and a first insulating layer, the first trace segment being provided on one side of the base substrate, the first trace segment being located in the bending area and partially located in the transition area, the first insulating layer being provided on a side of the first trace segment away from the base substrate, the first insulating layer being provided with a first opening, the first trace segment being exposed in the first opening; the touch barrier layer The barrier layer is arranged on a side of the first insulating layer away from the base substrate, and a second opening is provided on the touch barrier layer; the first touch insulating layer is arranged on a side of the touch barrier layer away from the base substrate, and a third opening is provided on the first touch insulating layer, and the orthographic projections of the third opening, the second opening, and the first opening on the base substrate overlap; the first touch electrode layer is arranged on a side of the first touch insulating layer away from the base substrate, and the first touch electrode layer includes a second routing segment, the second routing segment is located in the transition area, the orthographic projection of the second routing segment on the base substrate overlaps the orthographic projection of the first routing segment on the base substrate, and the second routing segment passes through the third opening, the second opening, and the first opening in sequence and is connected to the first routing segment.

[0005] In one embodiment of the present invention, the first insulating layer includes a first sub-insulating layer and a second sub-insulating layer stacked in sequence in a direction away from the base substrate, the first opening includes a first sub-opening and a second sub-opening, the first sub-opening is provided in the first sub-insulating layer, the second sub-opening is provided in the second sub-insulating layer, the first routing segment is provided on a side of the first sub-insulating layer close to the base substrate, the first routing segment is exposed at the first sub-opening, a transition portion is provided between the second sub-insulating layer and the first sub-insulating layer, the transition portion is exposed at the second sub-opening, the second routing segment passes through the third opening, the second opening and the second sub-opening to be connected to the transition portion, and the transition portion passes through the first sub-opening to be connected to the first routing segment.

[0006] In one embodiment of the present invention, in the display area, the driving backplane includes a first planarization layer, a first source-drain metal layer, a second planarization layer, a second source-drain metal layer, a third planarization layer and a third source-drain metal layer, which are arranged in sequence along a direction away from the base substrate. The transition portion is arranged in the same layer and material as the third source-drain metal layer, the first routing segment is arranged in the same layer and material as the second source-drain metal layer, the second sub-insulating layer is arranged in the same layer and material as the third planarization layer, and the first sub-insulating layer is arranged in the same layer and material as the second planarization layer.

[0007] In one embodiment of the present invention, the display panel also includes an encapsulation layer, which is arranged between the driving backplane and the touch barrier layer. The encapsulation layer extends from the display area to the transfer area. The encapsulation layer is provided with a fourth opening. The orthographic projection of the fourth opening on the base substrate overlaps with the orthographic projections of the first opening, the second opening, the third opening, and the fourth opening on the base substrate. The second routing segment passes through the fourth opening.

[0008] In one embodiment of the present invention, the display panel further includes an encapsulation layer, which is disposed between the driving backplane and the touch barrier layer. The encapsulation layer extends from the display area to a side of the transition area away from the bending area, and the orthographic projection of the encapsulation layer on the base substrate is spaced apart from the edge of the first opening.

[0009] In one embodiment of the present invention, the display panel also includes a second touch electrode layer, which is arranged between the first touch insulating layer and the touch blocking layer. A fifth opening is provided on the second touch electrode layer, and the second routing segment passes through the fifth opening. The edge of the second touch electrode layer is spaced apart from the edge of the fifth opening.

[0010] In one embodiment of the present invention, the display panel also includes a second touch electrode layer and a second touch insulation layer, the second touch insulation layer is arranged on a side of the first touch electrode layer away from the base substrate, the second touch electrode layer is arranged on a side of the second touch insulation layer away from the base substrate, the second touch insulation layer is provided with a sixth opening, the orthographic projection of the sixth opening on the base substrate overlaps with the orthographic projection of the third opening on the base substrate, the second touch electrode layer includes a third routing segment, and the third routing segment passes through the sixth opening and is connected to the second routing segment.

[0011] In one embodiment of the present invention, the material of the first touch insulating layer is silicon-doped polyimide.

[0012] In one embodiment of the present invention, the display panel further includes a filter layer, which is arranged on a side of the first touch insulation layer close to the base substrate, the filter layer includes a plurality of filter units of different colors, the first touch electrode layer includes a plurality of first touch units, the second touch electrode layer includes a plurality of second touch units, the orthographic projections of the first touch units and the second touch units on the base substrate overlap with the orthographic projections of two adjacent filter units on the base substrate, and the colors of the first touch units and the second touch units are black.

[0013] In one embodiment of the present invention, the display panel further includes a filter layer and a light-shielding layer. The filter layer is provided on a side of the first touch insulating layer close to the base substrate. A light-shielding layer is provided on a side of the first touch electrode layer and the second touch electrode layer that is farther from the base substrate. The filter layer includes a plurality of filter units of different colors. A color-resistance opening is provided on the light-shielding layer. The orthographic projections of the filter units on the base substrate overlap with the orthographic projections of the color-resistance openings on the base substrate.

[0014] In one embodiment of the present invention, the filter layer is disposed between the encapsulation layer and the touch barrier layer.

[0015] In one embodiment of the present invention, the display panel further includes a second touch insulating layer disposed between the second touch electrode layer and the touch barrier layer, and the filter layer is disposed between the second touch insulating layer and the touch barrier layer.

[0016] In one embodiment of the present invention, the filter layer is disposed between the first touch insulating layer and the second touch electrode layer.

[0017] In one embodiment of the present invention, the first touch insulating layer is a filter layer, which includes a plurality of filter units of different colors, and the thickness of the filter units of different colors is equal. The display panel also includes a light-shielding layer, which is arranged on a side of the first touch electrode layer away from the base substrate. A color-resistance opening is provided on the light-shielding layer, and the orthographic projection of the filter unit on the base substrate overlaps with the orthographic projection of the color-resistance opening on the base substrate.

[0018] In one embodiment of the present invention, the display panel further includes a touch protection layer, and the touch protection layer is disposed on a side of the light shielding layer away from the base substrate.

[0019] In one embodiment of the present invention, the display panel further includes a covering layer, and the covering layer is disposed between the light shielding layer and the touch protection layer.

[0020] According to another aspect of the present application, a display device is provided, comprising the display panel provided by any one aspect of the present invention.

[0021] The display panel of the present invention includes a first insulating layer, a touch barrier layer, and a first touch insulating layer. The first insulating layer is provided with a first opening exposing a first trace segment. A third opening can be provided in the first touch insulating layer. The touch barrier layer is etched using the patterned first touch insulating layer as a mask, forming a second opening in the touch barrier layer. The second trace segment located in the first touch electrode layer passes through the third opening, the second opening, and the first opening in sequence to connect with the first trace segment. Simply adding a mask pattern corresponding to the third opening to the mask corresponding to the first touch insulating layer eliminates the need for a separate mask for patterning the touch barrier layer. This prevents breakage of the touch traces and saves a masking process.

[0022] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are incorporated into and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and it is clear that those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0024] Figure 1 It is a cross-sectional schematic diagram of the display area of ​​the display panel according to an embodiment of the present invention when the color filter layer is disposed on the side of the touch control layer away from the base substrate.

[0025] Figure 2 FIG. 1 is a plan view of a display panel according to an embodiment of the present invention when the entire touch line is located in the first touch electrode layer or the second touch electrode layer.

[0026] Figure 3 FIG. 1 is a cross-sectional schematic diagram of a display area of ​​a display panel according to an embodiment of the present invention when the colors of the first touch unit and the second touch unit are black and a color-resistance opening is formed between two adjacent first touch units and second touch units.

[0027] Figure 4 A schematic cross-sectional view of the layer group of the encapsulation layer in the display area of ​​an embodiment of the present invention on the side away from the base substrate when the first touch unit and the second touch unit are black and a color-resist opening is formed between two adjacent first touch units and second touch units.

[0028] Figure 53 is a plan view of a display panel according to an embodiment of the present invention when the second routing segment is located in the first touch electrode layer and the first routing segment is located on a side of the second routing segment close to the base substrate.

[0029] Figure 6 for Figure 5 Enlarged schematic diagram of area A in the middle.

[0030] Figure 7 A schematic cross-sectional view of the transition area of ​​the display panel according to an embodiment of the present invention is shown, where the second routing segment extends along the touch barrier layer on the side wall of the second sub-opening until it overlaps the portion of the transition portion located at the bottom of the second sub-opening, and the transition portion passes through the first sub-opening and connects with the first routing segment.

[0031] Figure 8 It is a cross-sectional schematic diagram of the transition area of ​​the display panel involved in an embodiment of the present invention when the first touch trace extends along the sidewalls of the third opening, the sidewalls of the second opening, and the sidewalls of the first opening and overlaps the portion of the transition portion located at the bottom of the first opening.

[0032] Figure 9 It is a cross-sectional schematic diagram of a display panel according to an embodiment of the present invention when the orthographic projection of the encapsulation layer on the base substrate is spaced apart from the edge of the first opening.

[0033] Figure 10 The figure is a cross-sectional schematic diagram of a display panel according to an embodiment of the present invention, in which the encapsulation layer extends from the display area to the transfer area and a fourth opening is provided in the encapsulation layer in the transfer area.

[0034] Figure 11 The figure is a cross-sectional schematic diagram of the transition area of ​​the display panel according to an embodiment of the present invention, in which the encapsulation layer extends from the display area to the transition area and a fourth opening is provided in the encapsulation layer in the transition area.

[0035] Figure 12 It is a cross-sectional schematic diagram of the transition area of ​​the display panel according to an embodiment of the present invention when the third routing segment passes through the sixth opening and is connected to the second routing segment.

[0036] Figure 13 It is a cross-sectional schematic diagram of the display area of ​​the display panel according to an embodiment of the present invention when the light shielding layer is disposed between the touch barrier layer and the first touch insulating layer.

[0037] Figure 14 It is a cross-sectional schematic diagram of a display area of ​​a display panel according to an embodiment of the present invention when the filter layer is disposed between the encapsulation layer and the touch barrier layer.

[0038] Figure 15 The filter layer is disposed between the first touch insulating layer and the second touch electrode layer, and is a cross-sectional schematic diagram of the display area of ​​the display panel according to an embodiment of the present invention.

[0039] Figure 16 FIG. 1 is a cross-sectional schematic diagram of a display area of ​​a display panel according to an embodiment of the present invention when the first touch insulating layer is a filter layer and the filter layer is disposed between the second touch electrode layer and the second touch electrode layer.

[0040] Figure 17 A schematic cross-sectional view of the transition region of the display panel according to an embodiment of the present invention is provided when a fifth opening is formed on the second touch electrode layer and the second routing segment sequentially passes through the third opening, the fifth opening, the second opening, the fourth opening and the first opening to connect with the first routing segment.

[0041] In the figure: 10 - driving backplane, 11 - substrate, 12 - buffer layer;

[0042] 13 - driving circuit layer, 131 - active layer, 1321 - first gate insulating layer, 1322 - second gate insulating layer, 1331 - first gate, 1332 - second gate, 134 - interlayer dielectric layer, 135 - first source, 136 - drain, 137 - protective layer, 138 - second source, 139 - third source;

[0043] 14-planarization layer group, 141-first planarization layer, 142-second planarization layer, 143-third planarization layer;

[0044] 15 - pixel defining layer, 151 - pixel opening, 1511 - first pixel opening, 1512 - second pixel opening, 1513 - third pixel opening, 152 - fourth light-transmitting opening;

[0045] 16 - light-emitting layer, 161 - pixel electrode, 162 - light-emitting unit, 1621 - red light-emitting unit, 1622 - green light-emitting unit, 1623 - blue light-emitting unit, 163 - common electrode;

[0046] 17-encapsulation layer, 171-first inorganic encapsulation layer, 172-organic encapsulation layer, 173-second inorganic encapsulation layer;

[0047] 18 - touch control layer, 181 - first touch electrode layer, 1811 - first touch unit, 182 - first touch insulation layer, 183 - second touch electrode layer, 1831 - second touch unit, 184 - second touch insulation layer, 185 - touch barrier layer;

[0048] 19-color filter layer, 191-light-shielding layer, 1911-color-resistance opening, 1912-light-shielding portion, 192-filter layer, 1921-first filter unit, 1922-second filter unit, 1923-third filter unit;

[0049] 20-touch protection layer; 21-covering layer;

[0050] 23 - first insulating layer, 231 - first sub-insulating layer, 232 - second sub-insulating layer, 24 - first via, 25 - second via, 251 - first opening, 2511 - first sub-opening, 2512 - second sub-opening, 252 - second opening, 253 - third opening, 254 - fourth opening, 255 - fifth opening, 26 - sixth opening, 27 - touch trace, 271 - first trace segment, 272 - second trace segment, 273 - third trace segment, 28 - adapter, 29 - binding pin;

[0051] 100-display area, 200-non-display area, 2001-transfer area, 2002-bending area. DETAILED DESCRIPTION

[0052] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent identical or similar structures, and thus their detailed description will be omitted. Furthermore, the figures are merely schematic illustrations of the present invention and are not necessarily drawn to scale.

[0053] While relative terms such as "upper" and "lower" are used in this specification to describe the relationship of one illustrated component to another, these terms are used for convenience only, such as in accordance with the orientation of the illustrations in the accompanying drawings. It should be understood that if the illustrated device were flipped upside down, the component described as "upper" would become the component "lower." When a structure is referred to as "on" another structure, this may mean that the structure is integrally formed with the other structure, that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through the other structure.

[0054] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used only as labels and are not intended to limit the quantity of their objects.

[0055] In order to improve the reliability of the display panel when being bent, organic materials can be used instead of inorganic materials as the touch insulating layer of the touch control layer 18. Figure 1As shown, the touch control layer 18 includes a touch barrier layer 185, which is used to protect the driving backplane 10 and planarize the surface before depositing the first touch electrode layer 181. A first touch electrode layer 181 is formed on one side of the touch barrier layer 185. A layer of organic compound (OC) is deposited on the side of the first touch electrode layer 181 away from the touch barrier layer 185 as a first touch insulating layer 182. A second touch electrode layer 183 is deposited on the side of the first touch insulating layer 182 away from the touch barrier layer 185. A layer of organic compound is deposited on the side of the second touch electrode layer 183 away from the touch barrier layer 185 as a second touch insulating layer 184.

[0056] The first touch insulation layer 182 insulates the first touch electrode layer 181 from the second touch electrode layer 183 and serves as a capacitive dielectric layer for the touch control layer 18. The second touch insulation layer 184 forms a flat substrate for coating the color filter layer 19, forming the color filter layer 19 on the side of the second touch insulation layer 184 away from the touch barrier layer 185. Optionally, first vias 24 may be provided in the first touch insulation layer 182 to bridge the first touch electrode layer 181 and the second touch electrode layer 183. The process for the touch control layer 18 is now complete, typically requiring five masking steps.

[0057] like Figure 2 As shown, the non-display area 200 outside the display area 100 includes a bending area 2002. The display panel also includes a touch trace 27. The touch trace 27 can be provided in the same layer and material as the first touch electrode layer 181 or the second touch electrode layer 183, and the touch trace 27 can be connected to the second touch electrode layer 183. It is understood that the touch trace 27 is provided near the outside of the display panel, typically extending from the display area 100 to the bending area 2002. The side of the bending area 2002 away from the display area 100 is provided with a binding pin 29, which connects the touch trace 27 to the binding pin 29. The binding pin 29 is then bent along the bending area 2002 to the back of the display panel and connected to the flexible circuit board. During bending and binding, the touch trace 27 in the bending area 2002 is prone to breakage due to tensile stress, resulting in malfunction of the display panel's touch function.

[0058] In the display device, the color filter layer 19 is used instead of the polarizer to reduce reflection, so that the display panel becomes thinner and the light transmittance is increased, thereby reducing power consumption. Figure 1As shown, on the side of the second touch insulating layer 184 away from the touch barrier layer 185, a light shielding layer 191 (black matrix, BM) and a light filter layer 192 (color filter) are coated and developed to form a color filter layer 19. Finally, a cover layer 21 is required to protect and flatten the surface of the color filter layer 19. This completes the process of the color filter layer 19, which generally requires five masking layers. Luminance attenuation is generally measured by the ratio of luminance at different angles to luminance in the normal direction. In this structure, the color filter layer 19 is far from the light-emitting layer 16, which can easily result in the light output angle of the light-emitting device being significantly restricted by the light shielding layer 191. This results in a larger luminance attenuation with increasing angle. Larger luminance attenuation means poorer visibility at wide angles.

[0059] Based on this, an embodiment of the present invention provides a display panel. Figures 3 to 16 As shown, the display panel has a display area 100 and a non-display area 200 located outside the display area 100, the non-display area 200 includes a transition area 2001 and a bending area 2002, the bending area 2002 is located on the side of the transition area 2001 away from the display area 100, the display panel includes a driving backplane 10, a touch barrier layer 185, a first touch insulating layer 182 and a first touch electrode layer 181, the driving backplane 10 includes a base substrate 11, a first trace segment 271 and a first insulating layer 23, the first trace segment 271 is provided on one side of the base substrate 11, the first trace segment 271 is located in the bending area 2002 and is partially located in the transition area 2001, the first insulating layer 23 is provided on the side of the first trace segment 271 away from the base substrate 11, the first insulating layer 23 is provided with a first opening 251, and the first trace segment 271 is exposed in the first opening 251; the touch barrier layer 185 is provided on the first On a side of the first insulating layer 23 away from the base substrate 11, a second opening 252 is defined in the touch barrier layer 185. A first touch insulating layer 182 is defined on a side of the touch barrier layer 185 away from the base substrate 11. A third opening 253 is defined in the first touch insulating layer 182. The orthographic projections of the third opening 253, the second opening 252, and the first opening 251 on the base substrate 11 overlap. A first touch electrode layer 181 is defined on a side of the first touch insulating layer 182 away from the base substrate 11. The first touch electrode layer 181 includes a second trace segment 272 located in the transition region 2001. The orthographic projection of the second trace segment 272 on the base substrate 11 overlaps with the orthographic projection of the first trace segment 271 on the base substrate 11. The second trace segment 272 passes through the third opening 253, the second opening 252, and the first opening 251 in sequence to connect to the first trace segment 271.

[0060] The display panel includes a first insulating layer 23, a touch barrier layer 185, and a first touch insulating layer 182. The first insulating layer 23 has a first opening 251 that exposes a first trace segment 271. A third opening 253 can be provided in the first touch insulating layer 182. The touch barrier layer 185 is etched using the patterned first touch insulating layer 182 as a mask to form a second opening 252 in the touch barrier layer 185. The second trace segment 272 located in the first touch electrode layer 181 passes through the third opening 253, the second opening 252, and the first opening 251 in sequence, and connects to the first trace segment 271. Simply adding a mask pattern corresponding to the third opening 253 to the mask corresponding to the first touch insulating layer 182 eliminates the need for a separate mask for patterning the touch barrier layer 185. This prevents breakage of the touch trace 27 and saves a masking process.

[0061] The display module according to the embodiment of the present invention will be described in detail below with reference to specific embodiments.

[0062] like Figure 3 As shown, the display panel may generally include a base substrate 11 and a driving circuit layer 13 , wherein the driving circuit layer 13 is arranged on one side of the base substrate 11 . The display panel may further include a buffer layer 12 , which is arranged between the base substrate 11 and the driving circuit layer 13 .

[0063] The base substrate 11 may be an inorganic material or an organic material. For example, in one embodiment of the present invention, the base substrate 11 may be made of a glass material such as soda-lime glass, quartz glass, or sapphire glass, or may be made of a metal material such as stainless steel, aluminum, or nickel.

[0064] In another embodiment of the present invention, the base substrate 11 may be a flexible base substrate 11. For example, the base substrate 11 may be made of polyimide (PI). The base substrate 11 may also be a composite of multiple layers. For example, in one embodiment of the present invention, the base substrate 11 may include a bottom film layer, a pressure-sensitive adhesive layer, a first polyimide layer, and a second polyimide layer stacked in sequence.

[0065] The driving circuit layer 13 is provided with a driving circuit for driving the light-emitting unit 162. The driving circuit is located in the display area 100. Any driving circuit may include a transistor, which may be a thin film transistor. The thin film transistor may be selected from a top-gate thin film transistor, a bottom-gate thin film transistor, or a dual-gate thin film transistor. Taking a top-gate thin film transistor as an example, the driving circuit layer 13 may include a first active layer 131, a first gate insulating layer 1321, a first gate layer, a second gate insulating layer 1322, a second gate layer, and a first source and drain metal layer, which are sequentially arranged in a direction away from the base substrate 11.

[0066] The first active layer 131 is disposed on one side of the base substrate 11. The material of the first active layer 131 can be amorphous silicon semiconductor material, low-temperature polysilicon semiconductor material, metal oxide semiconductor material, organic semiconductor material, or other types of semiconductor materials. Therefore, the thin film transistor can be an N-type thin film transistor or a P-type thin film transistor. The first active layer 131 can include a channel region and two doped regions of different doping types located on either side of the channel region.

[0067] The first gate insulating layer 1321 is arranged on a side of the active layer 131 away from the substrate 11. The first gate insulating layer 1321 may cover the active layer 131 and the substrate 11. The first gate 1331 layer may include a first gate 1331. The first gate 1331 is arranged on a side of the first gate insulating layer 1321 away from the substrate 11 and is opposite to the active layer 131. That is, the projection of the first gate 1331 on the substrate 11 is located within the projection range of the active layer 131 on the substrate 11. For example, the projection of the first gate 1331 on the substrate 11 coincides with the projection of the channel region of the active layer 131 on the substrate 11. The second gate insulating layer 1322 is disposed on a side of the first gate 1331 away from the substrate 11. The second gate insulating layer 1322 may cover the first gate 1331 and the first gate insulating layer 1321. The second gate 1332 layer may include a second gate 1332. The second gate 1332 is disposed on a side of the second gate insulating layer 1322 away from the substrate 11 and directly opposite the active layer 131. The first gate insulating layer 1321 and the second gate insulating layer 1322 are both made of insulating materials such as silicon oxide.

[0068] The thin film transistor may further include an interlayer dielectric layer 134, which is disposed on a side of the second gate electrode 1332 away from the base substrate 11. The interlayer dielectric layer 134 may cover the second gate electrode 1332 and the second gate insulating layer 1322. A first source-drain metal layer is disposed on a surface of the interlayer dielectric layer 134 away from the base substrate 11. The first source-drain metal layer may include a first source electrode 135 and a drain electrode 136. The first source electrode 135 and the drain electrode 136 are connected to the first active layer 131. For example, the first source electrode 135 and the drain electrode 136 are respectively connected to the two doped regions of the corresponding first active layer 131 through vias. A protective layer 137 may also be disposed on a side of the first source electrode 135 away from the base substrate 11, and the protective layer 137 covers the first source electrode 135 and the drain electrode 136. The driving circuit layer 13 may further include a planarization layer group 14 . The planarization layer group 14 includes a first planarization layer 141 . The first planarization layer 141 is disposed on a side of the protection layer 137 away from the base substrate 11 . The first planarization layer 141 covers the protection layer 137 .

[0069] The driving circuit layer 13 may further include a second source-drain metal layer, which is arranged on the side of the first planarization layer 141 away from the base substrate 11. The second source-drain metal layer may include a second source electrode 138, which is connected to the first source electrode 135. The planarization layer group 14 may further include a second planarization layer 142, which is arranged on the side of the second source electrode 138 away from the base substrate 11. The second planarization layer 142 covers the second source electrode 138 and the first planarization layer 141.

[0070] The driving circuit layer 13 may further include a third source-drain metal layer, which is disposed on a side of the second planarization layer 142 away from the base substrate 11. The third source-drain metal layer may include a third source electrode 139, which is connected to the second source electrode 138. The planarization layer group 14 may further include a third planarization layer 143, which is disposed on a side of the third source electrode 139 away from the base substrate 11. The third planarization layer 143 covers the third source electrode 139 and the second planarization layer 142. In some embodiments, at least one of the second source electrode 138 and the third source electrode 139 may be omitted.

[0071] The display panel may further include a pixel defining layer 15 and a light-emitting layer 16. The pixel defining layer 15 is disposed on the side of the first planarizing layer 141 or the second planarizing layer 142 away from the array substrate. The pixel defining layer 15 includes a plurality of pixel defining portions, with pixel openings 151 formed between adjacent pixel defining portions. The light-emitting layer 16 may include a plurality of light-emitting devices, each disposed within a different pixel opening 151. Each light-emitting device may include a pixel electrode 161, a light-emitting unit 162, and a common electrode 163. The pixel electrode 161 is located on the surface of the first planarizing layer 141 or the second planarizing layer 142 away from the base substrate 11. The light-emitting unit 162 is disposed on the surface of the pixel electrode 161 away from the base substrate 11. The common electrode 163 is disposed on the surface of the light-emitting unit 162 away from the base substrate 11. The pixel electrode 161 and the common electrode 163 can be used to drive the light-emitting unit 162 to emit light, thereby displaying an image.

[0072] The pixel electrode 161 is connected to the first source electrode 135, the second source electrode 138, or the third source electrode 139. A pixel defining layer 15 is provided on the side of the pixel electrode 161 away from the substrate 11. When the thin film transistor includes only the first source electrode 135, the pixel electrode 161 is connected to the first source electrode 135, and the pixel defining layer 15 covers the pixel electrode 161 and the first planarization layer 141. When the thin film transistor also includes the second source electrode 138, the pixel electrode 161 is connected to the second source electrode 138, and the pixel defining layer 15 covers the pixel electrode 161 and the second planarization layer 142.

[0073] The common electrode 163 can serve as a cathode, and the pixel electrode 161 can serve as an anode. The light-emitting unit 162 can be driven to emit light by applying a signal to the pixel electrode 161. The specific light-emitting principle will not be described in detail here. The light-emitting unit 162 may include an electro-induced organic light-emitting material and may be formed by a process such as evaporation. For example, the light-emitting unit 162 may include a hole injection layer, a hole transport layer, a light generating layer, an electron transport layer, and an electron injection layer sequentially stacked on the pixel electrode 161. It should be noted that the light-emitting unit 162 may include a red light-emitting unit 1621, a green light-emitting unit 1622, and a blue light-emitting unit 1623, depending on the color of the light emitted.

[0074] In addition, the display panel of the present invention may further include an encapsulation layer 17. Encapsulation layer 17 is disposed on the side of light-emitting layer 16 away from substrate 11, thereby encapsulating light-emitting layer 16 and preventing corrosion by water and oxygen. Encapsulation layer 17 may have a single-layer or multi-layer structure, and the material of encapsulation layer 17 may include organic or inorganic materials, without particular limitation herein.

[0075] In this embodiment, the encapsulation layer 17 may include a first inorganic encapsulation layer 171, an organic encapsulation layer 172 and a second inorganic encapsulation layer 173. The first inorganic encapsulation layer 171 is arranged on the side of the light-emitting layer 16 away from the base substrate 11, the organic encapsulation layer 172 is arranged on the side of the first inorganic encapsulation layer 171 away from the base substrate 11, and the second inorganic encapsulation layer 173 is arranged on the side of the organic encapsulation layer 172 away from the base substrate 11.

[0076] The display panel also includes a touch control layer 18, which can be a mutual capacitance touch control. The touch control layer 18 can include a touch barrier layer 185, a first touch insulating layer 182, a first touch electrode layer 181, a second touch insulating layer 184, a second touch electrode layer 183, a cover layer 21 and a touch protection layer 20. The first touch insulating layer 182 is provided on a side of the second inorganic encapsulation layer 173 away from the base substrate 11, and the first touch electrode layer 181 is provided on the first touch insulating layer 182. The second touch insulating layer 184 is disposed on the side of the first touch electrode layer 181 away from the base substrate 11, the second touch electrode layer 183 is disposed on the side of the second touch insulating layer 184 away from the base substrate 11, the touch barrier layer 185 is disposed on the side of the first touch insulating layer 182 closer to the base substrate 11, the cover layer 21 is disposed on the side of the second touch electrode layer 183 away from the base substrate 11, and the touch protection layer 20 is disposed on the side of the cover layer 21 away from the base substrate 11. The first touch insulating layer 182, the second touch insulating layer 184, and the cover layer 21 are all made of organic materials. Specifically, the material of the first touch insulating layer 182 can be silicon-doped polyimide. The material of the second touch insulating layer 184 and the cover layer 21 can be polyimide.

[0077] The first touch electrode layer 181 can be a metal mesh layer (MM), and the second touch electrode layer 183 can be a bridge metal layer (BM). Alternatively, the first touch electrode layer 181 can be a bridge metal layer, and the second touch electrode layer 183 can be a metal mesh layer. First vias 24 are provided in the first touch insulating layer 182, connecting the first touch electrode layer 181 to the second touch electrode layer 183 through the first vias 24.

[0078] like Figure 3 and Figure 4As shown, the display panel further includes a filter layer 192, which is disposed between the first touch insulating layer 182 and the touch blocking layer 185. The filter layer 192 includes a plurality of filter units of different colors. The first touch electrode layer 181 includes a plurality of first touch units 1811, and the second touch electrode layer 183 includes a plurality of second touch units 1831. For example, the orthographic projections of the first touch units 1811 and the second touch units 1831 on the base substrate 11 overlap with the orthographic projections of two adjacent filter units on the base substrate 11. For example, a color resist opening 1911 is formed between two adjacent first touch units 1811 and between two adjacent second touch units 1831. For example, the colors of the first touch units 1811 and the second touch units 1831 are black. In some embodiments, the first touch units and the second touch units may be ferrous metals. The first touch electrode layer 181 and the second touch electrode layer 183 are used to block the reflected light. In this case, the first touch electrode layer 181 and the second touch electrode layer 183 can replace the light shielding layer 191 .

[0079] Positioning the filter layer 192 between the touch barrier layer 185 and the first touch insulating layer 182 reduces the distance between the filter layer 192 and the light-emitting layer 16, thereby reducing the restriction on the light emission angle of the light-emitting device, thereby reducing the brightness loss caused by increasing the angle, and better ensuring wide-angle visibility. In other embodiments, the filter layer 192 can also be located between any two other film layers of the touch control layer 18. When the first touch electrode layer 181 and the second touch electrode layer 183 replace the light shielding layer 191, there is no need to provide a separate light shielding layer 191, saving the manufacturing process of the light shielding layer 191 and reducing the thickness of the display panel.

[0080] like Figure 5 and Figure 6 As shown, to prevent the touch traces 27 at the outermost layer of the bending region 2002 from fracturing due to tensile stress during bending and binding, thereby causing malfunction of the touch function of the display panel, the first touch electrode layer 181 can be located farther from the base substrate than the second touch electrode layer 181. The first touch electrode layer 181 can include touch drive electrodes extending in one direction and touch sensing electrodes extending in a second direction. The touch drive electrodes and the touch sensing electrodes intersect with each other. The touch drive electrodes are connected to touch drive leads for inputting drive signals, and the touch sensing electrodes are connected to touch sensing leads for receiving sensing signals. The touch drive leads and touch sensing leads are the touch traces 27 at the outermost layer of the bending region 2002 mentioned above. In other embodiments, the first touch electrode layer 181 can also be located closer to the base substrate than the second touch electrode layer 181. In this case, the touch traces 27 at the outermost layer of the bending region 2002 can still be located on the first touch electrode layer 181.

[0081] A transition area 2001 is provided between the display area 100 and the bending area 2002, dividing the touch trace 27 into a first trace segment 271 and a second trace segment 272. The second trace segment 272 is located on the first touch electrode layer 181 or the second touch electrode layer 183. The first trace segment 271 is located on a side of the second trace segment 272 close to the base substrate 11. The first trace segment 271 is located in the bending area 2002 and partially located in the transition area 2001. The second trace segment 272 is located in the transition area 2001. The second trace segment 272 is connected to the first trace segment 271 through a jumper in the transition area 2001 and a second via 25. When bending, the first trace segment 271 is subjected to tensile stress. Typically, the touch barrier layer 185 extends to the transition region 2001. Therefore, a masking process is typically required to remove the portion of the touch barrier layer 185 in the second via 25 to ensure connection between the second trace segment 272 and the first trace segment 271. When the encapsulation layer 17 extends to the transition region 2001, the portion of the encapsulation layer 17 in the second via 25 can also be removed simultaneously with the removal of the touch barrier layer 185 in the second via 25 through the masking process.

[0082] like Figure 7 As shown, the driving circuit layer 13 includes a first insulating layer 23, a transition portion 28 and a first routing segment 271 in the non-display area 200. The first insulating layer 23 includes a first sub-insulating layer 231 and a second sub-insulating layer 232 stacked in sequence along a direction away from the base substrate 11. The first insulating layer 23 is provided with a first opening 251. The first opening 251 includes a first sub-opening 2511 and a second sub-opening 2512. The first sub-opening 2511 is provided in the first sub-insulating layer 231, and the second sub-opening 2512 is provided in the second sub-insulating layer 232. The first routing segment 271 is provided on a side of the first sub-insulating layer 231 close to the base substrate 11, and the first routing segment 271 is exposed at the first sub-opening 2511. The transition portion 28 is provided between the second sub-insulating layer 232 and the first sub-insulating layer 231, and the transition portion 28 is exposed at the second sub-opening 2512.

[0083] A touch barrier layer 185 is formed on the side of the first insulating layer 23 away from the base substrate 11. The touch barrier layer 185 extends along the side of the second sub-opening 2512 to the side of the adapter 28 away from the base substrate 11. The portion of the touch barrier layer 185 located at the bottom of the second sub-opening 2512 is removed using a mask. That is, the touch barrier layer 185 extends along the sidewall of the second sub-opening 2512 to overlap the side of the adapter 28 away from the base substrate 11, exposing a portion of the touch barrier layer 185. The first touch electrode layer 181 or the second touch electrode layer 183 includes a second routing segment 272. The second routing segment 272 is arranged on the side of the touch barrier layer 185 away from the base substrate 11. The second routing segment 272 extends along the touch barrier layer 185 on the sidewall of the second sub-opening 2512 until it overlaps with the portion of the routing segment 28 located at the bottom of the second sub-opening 2512. The routing segment 272 passes through the first sub-opening 2511 and is connected to the first routing segment 271.

[0084] The first trace segment 271 is closer to the substrate 11 than the second trace segment 272. This reduces the tensile stress on the touch trace 27 in the bend region 2002 and prevents the touch trace 27 from breaking in the bend region 2002. In this embodiment, the first trace segment 271 can be located in the second source / drain metal layer, and the transition portion 28 can be located in the third source / drain metal layer. In this case, the first opening 251 is the second via mentioned above. The first opening includes a first sub-opening 2511 provided in the first sub-insulating layer 231, a second sub-opening 2512 provided in the second sub-insulating layer 232, and a portion of the touch-blocking layer 185 removed within the second sub-opening 2512. In other embodiments, the first trace segment 271 can be provided in the same layer as the third source / drain metal layer, with the first trace segment 271 exposed at the bottom of the second sub-opening 2512. The second trace segment 272 can be passed through the second sub-opening 2512 to directly connect to the first trace segment 271. The second via hole includes only the first sub-opening 2511 . The first opening 251 includes a second sub-opening 2512 provided in the second sub-insulating layer 232 and a portion of the touch barrier layer 185 removed in the second sub-opening 2512 .

[0085] like Figure 8As shown, to reduce masking processes and lower the production cost of the display panel, the first touch insulation layer 182 is extended to the transition region 2001. A third opening 253 is formed in the first touch insulation layer 182. The orthographic projection of the third opening 253 on the base substrate 11 overlaps the orthographic projection of the first opening 251 on the base substrate 11. Using the first touch insulation layer 182 as a mask and the third opening 253 as a mask pattern, a second opening 252 is formed in the touch barrier layer 185. A second trace segment 272 is provided on the first touch electrode layer 181. The first touch trace 27 extends along the sidewalls of the third opening 253, the sidewalls of the second opening 252, and the sidewalls of the first opening 251 until it overlaps the portion of the transition portion 28 at the bottom of the first opening 251. This eliminates the need for a separate mask for patterning the touch barrier layer 185, preventing breakage of the touch trace 27 while saving a masking process. At this time, the first opening 251 , the second opening 252 and the third opening 253 constitute the above-mentioned second via hole 25 .

[0086] like Figure 9 and Figure 10 As shown, in the display area 100, the driving circuit layer 13 includes a first planarization layer 141, a first source-drain metal layer, a second planarization layer 142, a second source-drain metal layer, a third planarization layer 143 and a third source-drain metal layer, which are arranged in sequence along a direction away from the base substrate 11. The transition portion 28 is arranged in the same layer and material as the third source-drain metal layer, the first routing segment 271 is arranged in the same layer and material as the second source-drain metal layer, the second sub-insulating layer 232 is arranged in the same layer and material as the third planarization layer 143, and the first sub-insulating layer 231 is arranged in the same layer and material as the second planarization layer 142.

[0087] like Figure 9 As shown, the first touch insulating layer 182 is arranged on the side of the second inorganic encapsulation layer 173 away from the base substrate 11, the first touch electrode layer 181 is arranged on the side of the first touch insulating layer 182 away from the base substrate 11, the second touch electrode layer 183 is arranged between the first touch insulating layer 182 and the touch barrier layer 185, and the second touch insulating layer 184 is arranged on the side of the second touch electrode layer 183 close to the base substrate, that is, the second touch insulating layer 184 is arranged between the second touch electrode layer 183 and the touch barrier layer 185.

[0088] like Figure 9As shown, the display panel may further include an encapsulation layer 17, which is disposed between the driver backplane 10 and the touch barrier layer 185. For display panels with wider bezels, the encapsulation layer 17 extends from the display area 100 to the side of the transition area 2001 away from the bending area 2002. The orthographic projection of the encapsulation layer 17 on the base substrate 11 is spaced from the edge of the first opening 251. The second trace segment 272 sequentially passes through the third opening 253, the second opening 252, and the first opening 251 to connect to the first trace segment 271.

[0089] like Figure 10 As shown, the first touch insulating layer 182 can be arranged on the side of the second inorganic encapsulation layer 173 away from the base substrate 11, the first touch electrode layer 181 can be arranged on the side of the first touch insulating layer 182 away from the base substrate 11, the second touch insulating layer 184 can be arranged on the side of the first touch electrode layer 181 away from the base substrate 11, the second touch electrode layer 183 can be arranged on the side of the second touch insulating layer 184 away from the base substrate 11, and the touch blocking layer 185 is arranged on the side of the first touch insulating layer 182 close to the base substrate 11.

[0090] like Figure 10 and Figure 11 As shown, for a display panel with a narrow frame, the encapsulation layer 17 extends from the display area 100 to the transition area 2001. A thin layer of encapsulation layer 17 casts a shadow in the transition area 2001. A fourth opening 254 is provided in the encapsulation layer 17 in the transition area 2001. The orthographic projection of the fourth opening 254 on the base substrate 11 overlaps with the orthographic projections of the first opening 251, the second opening 252, the third opening 253, and the fourth opening 254 on the base substrate 11. The second trace segment 272 passes through the third opening 253, the second opening 252, the fourth opening 254, and the first opening 251 in sequence and connects to the first trace segment 271. At this point, the first opening 251, the second opening 252, the third opening 253, and the fourth opening 254 constitute the second via 25 mentioned above.

[0091] Of course, in Figure 9 In the embodiment, the encapsulation layer 17 can be extended from the display area 100 to the transfer area 2001, and a fourth opening is provided in the encapsulation layer 17 in the transfer area 2001. The second wiring segment 272 is provided to sequentially pass through the third opening 253, the second opening 252, the fourth opening and the first opening 251 to connect with the first wiring segment 271. Figure 10 In the embodiment, the orthographic projection of the encapsulation layer 17 on the base substrate 11 may be spaced apart from the edge of the first opening 251. The second routing segment 272 sequentially passes through the third opening 253, the second opening 252 and the first opening 251 and is connected to the first routing segment 271.

[0092] The first touch insulating layer 182 is made of silicon-doped polyimide. This avoids the poor etching resistance of the existing polyimide material for the first touch insulating layer 182, which makes the first touch insulating layer 182 easily lost during etching, resulting in poor surface morphology of the first touch insulating layer 182 itself, poor flatness during the subsequent deposition of the first touch electrode layer 181, and significant residual developer in the surface microstructure, which may oxidize the subsequently formed first touch electrode layer 181, resulting in the inability to completely etch the area of ​​the first touch electrode layer 181 to be etched away, resulting in residue between two adjacent second trace segments 272, and thus causing a short circuit between the touch traces 27.

[0093] like Figure 12 As shown, in order to reduce the resistance of the touch trace 27, the second touch insulation layer 184 is also extended to the transition area 2001. A sixth opening 26 can be provided in the portion of the second touch insulation layer 184 in the transition area 2001, and a third trace segment 273 is provided in the second touch electrode layer 183. The orthographic projection of the sixth opening 26 on the base substrate 11 overlaps with the orthographic projection of the third opening 253 on the base substrate 11, and the orthographic projection of the third trace segment 273 on the base substrate 11 overlaps with the orthographic projection of the second trace segment 272 on the base substrate 11. The third trace segment 273 passes through the sixth opening 26 and is connected to the second trace segment 272. In this way, the cross-sectional area of ​​the touch trace 27 can be increased and the resistance of the touch trace 27 can be reduced.

[0094] like Figure 13 As shown, Figure 4 The difference is that the colors of the first touch unit 1811 and the second touch unit 1831 are not limited. The display panel may also include a light shielding layer 191, which is disposed on the side of the second touch electrode layer 183 away from the base substrate 11. The light shielding layer 191 may be a black matrix, and color-resistance openings 1911 are provided on the light shielding layer 191. The orthographic projection of the filter unit on the base substrate 11 overlaps with the orthographic projection of the color-resistance openings 1911 on the base substrate 11, making the light shielding layer 191 more effective in blocking reflected light. A light shielding portion 1912 is formed between two adjacent color-resistance openings 1911. The orthographic projection of the light shielding portion 1912 on the base substrate 11 covers the orthographic projections of the first touch unit 1811 and the second touch unit 1831 on the base substrate 11.

[0095] like Figure 14As shown, the first touch insulating layer 182 is provided on the side of the touch barrier layer 185 away from the base substrate 11, the first touch electrode layer 181 is provided on the side of the first touch insulating layer 182 away from the base substrate 11, the second touch electrode layer 183 is provided on the side of the first touch insulating layer 182 close to the base substrate 11, the filter layer 192 is provided between the encapsulation layer 17 and the touch barrier layer 185, and the light shielding layer 191 is provided on the side of the first touch electrode layer 181 away from the base substrate 11. The first touch insulating layer 182 extends from between the first touch electrode layer 181 and the second touch electrode layer 183 to the transition area 2001. Figure 13 The distance between the filter layer 192 and the light-emitting layer 16 is smaller, which can better improve the color shift and optical attenuation problems. In addition, the display panel omits the second touch insulating layer 184, which can reduce the thickness of the display panel.

[0096] When the filter layer 192 is disposed between the encapsulation layer 17 and the touch barrier layer 185, the first touch insulation layer 182 is used as a mask. When the encapsulation layer 17 extends to the transfer region 2001, the third opening 253 is used as a mask pattern to form a second opening 252 in the touch barrier layer 185 and a fourth opening 254 in the encapsulation layer 17. This eliminates the need for separate masks for patterning the touch barrier layer 185 and the encapsulation layer 17, thereby preventing breakage of the touch traces 27 and saving two masking steps.

[0097] like Figure 15 As shown, the second touch electrode layer 183 is disposed on the side of the touch barrier layer 185 away from the base substrate. The first touch insulating layer 182 is disposed on the side of the second touch electrode layer 183 away from the base substrate. The filter layer 192 is disposed between the first touch insulating layer 182 and the second touch electrode layer 183. The first touch electrode layer 181 is disposed on the side of the first touch insulating layer 182 away from the base substrate. The light shielding layer 191 is disposed on the side of the first touch electrode layer 181 away from the base substrate. Finally, a touch protection layer 20 is disposed on the side of the light shielding layer 191 away from the base substrate.

[0098] The advantage of this arrangement is that when the thicknesses of the first filter unit 1921, the second filter unit 1922, and the third filter unit 1923 are different, the first touch insulating layer 182 can achieve insulation between the first touch electrode layer 181 and the second touch electrode layer 183 while performing a planarization process on the filter layer 192, thereby preventing the filter layer 192 from affecting the morphology of the second touch electrode layer 183. Figure 14 The thickness of the display panel can be further reduced.

[0099] The second touch insulating layer 184 is removed, and the light shielding layer 191 is patterned, requiring approximately seven to eight masking steps. In this embodiment, after the touch barrier layer 185 is deposited, a masking step is required to remove the encapsulation layer 17 and the touch barrier layer 185 within the second via 25. The pattern formed after curing the first touch insulating layer 182 with the third opening is used as a mask. After the first touch insulating layer 182 is cured, an etching step is performed to remove the encapsulation layer 17 and the touch barrier layer 185 within the second via 25, eliminating the need for separate masking steps for the encapsulation layer 17 and the touch barrier layer 185.

[0100] like Figure 16 As shown, the first touch insulating layer 182 is a filter layer 192, that is, the filter layer 192 is provided between the first touch electrode layer 181 and the second touch electrode layer 183. The filter layer 192 includes a plurality of filter units of different colors, and the thickness of the filter units of different colors is equal. The display panel also includes a light shielding layer 191, which is provided on the side of the first touch electrode layer 181 away from the base substrate 11. The light shielding layer 191 is provided with a color resist opening 1911. The orthographic projection of the filter unit on the base substrate 11 overlaps with the orthographic projection of the color resist opening 1911 on the base substrate 11. Figure 15 The original first touch insulating layer 182 is omitted and replaced by the filter layer 192, which can reduce the thickness of the display panel.

[0101] The uniform thickness of the filter layer 192 ensures the flatness of the second touch electrode deposition. If a bridge is required between the second touch electrode layer 183 and the first touch electrode layer 181, a first via 24 can be formed on a filter unit, at the intersection of two or three filter units of different colors. The transition region 2001 and the bending region 2002 are typically located on the bottom frame of the display panel. If a bridge is required on the touch traces 27 on the top frame and left and right frames of the display panel to reduce touch resistance requirements, a third via can be formed in the same manner.

[0102] It should be noted that a touch protection layer 20 can be set on the side of the light shielding layer 191 away from the base substrate 11, or a covering layer 21 can be set between the light shielding layer 191 and the touch protection layer 20. The covering layer 21 can be used to flatten and protect the light shielding layer 191.

[0103] when Figures 14 to 16When the second touch electrode layer 183 extends to the transition area 2001, in order to avoid blocking the connection between the second trace segment 272 and the transition portion 28, the second touch electrode layer 183 needs to be etched in advance to form a fifth opening 255 on the second touch electrode layer 183. When the first touch insulation layer 182 is used as a mask, the touch barrier layer 185 is exposed within the third opening 253. The second trace segment 272 passes through the third opening 253, the fifth opening 255, the second opening 252, the fourth opening 254, and the first opening 251 in sequence to connect to the first trace segment 271. The edge of the second touch electrode layer 183 is spaced apart from the edge of the fifth opening 255, as shown in FIG. Figure 17 At this time, the first opening 251 , the second opening 252 , the third opening 253 , the fourth opening 254 and the fifth opening 255 constitute the second via hole 25 mentioned above.

[0104] The embodiment of the present invention further provides a display device, which may include the display panel of any one of the above embodiments of the present invention. The specific structure and beneficial effects of the display panel have been described in detail above, so they will not be repeated here.

[0105] It should be noted that, in addition to the display panel, the display device also includes other necessary components and components, such as a housing, a circuit board, a power cord, etc. Those skilled in the art can make corresponding supplements based on the specific usage requirements of the display device, which will not be repeated here.

[0106] The display device can also be an emerging wearable device, such as a virtual reality device and an augmented reality device, or a traditional electronic device, such as a mobile phone, a computer, a television, and a camcorder. These are not listed here one by one.

[0107] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the disclosure of the invention herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the appended claims.

Claims

1. A display panel comprising a display area and a non-display area located outside the display area, wherein the non-display area includes a transition area and a bending area, wherein the bending area is located on a side of the transition area away from the display area, wherein: The display panel includes: A driving backplane, comprising a base substrate, a first routing segment, and a first insulating layer, wherein the first routing segment is provided on one side of the base substrate, the first routing segment is located in the bending region and partially located in the transition region, the first insulating layer is provided on a side of the first routing segment away from the base substrate, the first insulating layer has a first opening, and the first routing segment is exposed in the first opening; The touch control layer includes a touch barrier layer, a first touch insulating layer, and a first touch electrode layer. The touch barrier layer is arranged on a side of the first insulating layer away from the base substrate, and a second opening is provided on the touch barrier layer. The first touch insulating layer is arranged on a side of the touch barrier layer away from the base substrate, and the first touch insulating layer extends to the transition region. The first touch insulating layer is provided with a third opening, and the orthographic projections of the third opening, the second opening, and the first opening on the base substrate overlap. The first touch electrode layer is arranged on a side of the first touch insulating layer away from the base substrate, and the first touch electrode layer includes a second routing segment. The second routing segment is located in the transition region, and the orthographic projection of the second routing segment on the base substrate overlaps with the orthographic projection of the first routing segment on the base substrate. The second routing segment passes through the third opening, the second opening, and the first opening in sequence to connect with the first routing segment.

2. The display panel according to claim 1, wherein: The first insulating layer includes a first sub-insulating layer and a second sub-insulating layer stacked in sequence in a direction away from the base substrate. The first opening includes a first sub-opening and a second sub-opening. The first sub-opening is provided in the first sub-insulating layer, and the second sub-opening is provided in the second sub-insulating layer. The first routing segment is provided on a side of the first sub-insulating layer close to the base substrate. The first routing segment is exposed at the first sub-opening. A transition portion is provided between the second sub-insulating layer and the first sub-insulating layer. The transition portion is exposed at the second sub-opening. The second routing segment passes through the third opening, the second opening and the second sub-opening to be connected to the transition portion. The transition portion passes through the first sub-opening to be connected to the first routing segment.

3. The display panel according to claim 2, wherein: In the display area, the driving backplane includes a first planarization layer, a first source-drain metal layer, a second planarization layer, a second source-drain metal layer, a third planarization layer and a third source-drain metal layer, which are arranged in sequence along a direction away from the base substrate. The transfer portion is arranged in the same layer and material as the third source-drain metal layer, the first routing segment is arranged in the same layer and material as the second source-drain metal layer, the second sub-insulating layer is arranged in the same layer and material as the third planarization layer, and the first sub-insulating layer is arranged in the same layer and material as the second planarization layer.

4. The display panel according to claim 1, wherein: The display panel also includes an encapsulation layer, which is arranged between the driving backplane and the touch barrier layer. The encapsulation layer extends from the display area to the transfer area. The encapsulation layer is provided with a fourth opening. The orthographic projection of the fourth opening on the base substrate overlaps with the orthographic projections of the first opening, the second opening, the third opening, and the fourth opening on the base substrate. The second routing segment passes through the fourth opening.

5. The display panel according to claim 1, wherein: The display panel also includes an encapsulation layer, which is arranged between the driving backplane and the touch barrier layer. The encapsulation layer extends from the display area to the side of the transition area away from the bending area. The orthographic projection of the encapsulation layer on the base substrate is spaced apart from the edge of the first opening.

6. The display panel according to claim 4 or 5, characterized in that: The display panel also includes a second touch electrode layer, which is arranged between the first touch insulation layer and the touch barrier layer. A fifth opening is provided on the second touch electrode layer, and the second wiring segment passes through the fifth opening. The edge of the second touch electrode layer is spaced apart from the edge of the fifth opening.

7. The display panel according to claim 4 or 5, characterized in that: The display panel also includes a second touch electrode layer and a second touch insulation layer, the second touch insulation layer is arranged on a side of the first touch electrode layer away from the base substrate, the second touch electrode layer is arranged on a side of the second touch insulation layer away from the base substrate, the second touch insulation layer is provided with a sixth opening, the orthographic projection of the sixth opening on the base substrate overlaps with the orthographic projection of the third opening on the base substrate, the second touch electrode layer includes a third routing segment, and the third routing segment passes through the sixth opening and is connected to the second routing segment.

8. The display panel according to claim 1, wherein: The material of the first touch insulating layer is silicon-doped polyimide.

9. The display panel according to claim 6, wherein: The display panel also includes a filter layer, which is arranged on a side of the first touch insulation layer close to the base substrate. The filter layer includes multiple filter units of different colors. The first touch electrode layer includes multiple first touch units. The second touch electrode layer includes multiple second touch units. The orthographic projections of the first touch units and the second touch units on the base substrate overlap with the orthographic projections of two adjacent filter units on the base substrate. The colors of the first touch units and the second touch units are black.

10. The display panel according to claim 6, wherein: The display panel also includes a filter layer and a light-shielding layer. The filter layer is arranged on a side of the first touch insulation layer close to the base substrate. The light-shielding layer is provided on a side of the first touch electrode layer and the second touch electrode layer that is farther away from the base substrate. The filter layer includes a plurality of filter units of different colors. A color-resistance opening is provided on the light-shielding layer. The orthographic projection of the filter unit on the base substrate overlaps with the orthographic projection of the color-resistance opening on the base substrate.

11. The display panel according to claim 10, wherein: The filter layer is arranged between the packaging layer and the touch barrier layer.

12. The display panel according to claim 10, wherein: The display panel further includes a second touch insulating layer, which is disposed between the second touch electrode layer and the touch barrier layer. The filter layer is disposed between the second touch insulating layer and the touch barrier layer.

13. The display panel according to claim 10, wherein: The filter layer is disposed between the first touch insulating layer and the second touch electrode layer.

14. The display panel according to claim 10, wherein: The first touch insulating layer is a filter layer, which includes a plurality of filter units of different colors, and the thickness of the filter units of different colors is equal. The display panel also includes a light-shielding layer, which is arranged on the side of the first touch electrode layer away from the base substrate. A color-resistance opening is provided on the light-shielding layer, and the orthographic projection of the filter unit on the base substrate overlaps with the orthographic projection of the color-resistance opening on the base substrate.

15. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 14.

Images