Display panel and display device

Description

1 / 25 DISPLAY PANEL AND DISPLAY DEVICE TECHNICAL FIELD

[001] The present invention relates to the field of design and manufacture technology for display panels and, more particularly, to a display panel and a display device. FUNDAMENTALS

[002] With the continuous development of display panel manufacturing technology, people have placed higher demands on the performance of display panels and devices.

[003] In the manufacturing process of display panels, it is necessary to form several functional layers, which correspond to different manufacturing processes, such as photomasking and etching processes. Encapsulation of the functional layers is carried out after the formation of the functional layers, for example, forming an encapsulation layer to effectively prevent the entry of external water vapor into the display panel and prevent the display panel from being damaged. Several metallic wires, such as touch-sensitive metallic wires, are required in the display panel. The touch-sensitive metallic wires are normally arranged in the encapsulation layer. In the state of the art, the encapsulation layer typically has a large angle of inclination at the position between the display area and the bonding area. The large angle of inclination causes the encapsulation layer to have a sharp transition in this area.When performing the etching process to form metallic wires on the steep encapsulation layer, the large amount of etching will increase the surface roughness of the layers and cause metallic residues to remain in the position corresponding to the angle of inclination, and the leveling of the formed layer will be poor, which leads to short-circuit problems between different metallic wires, causing the display panel to malfunction. Petition 870250108836, dated 11 / 27 / 2025, page 9 / 58 2 / 25 may not function normally, reducing the reliability and overall performance of the display panel.

[004] Therefore, solutions are needed for the problems of the state of the art. SUMMARY OF THE INVENTION

[005] In summary, in the state of the art, during the manufacturing process of a display panel, there is a sharp angle of inclination in the encapsulation layer of the display panel. When forming and etching the metal wires at the angle of inclination, there will be metallic residues, which leads to internal short circuits in the display panel, thus reducing the reliability and overall performance of the display panel.

[006] To solve the above problems, the embodiments of the present patent application provide a display panel and a display device to effectively improve the problems of deficient recording effects, such as sharp tilt angle of the encapsulation layer, metallic residues and poor leveling of the layer on the display panel in the state of the art.

[007] To solve the above technical problems, the present patent application provides a display panel comprising a display area and a non-display area disposed on one side of the display area, wherein the display panel comprises: a substrate; an inorganic insulating layer disposed on a substrate surface, the inorganic insulating layer comprising a first groove disposed in the non-exposed area; an organic insulating layer disposed over a surface of the inorganic insulating layer away from the substrate, the organic insulating layer comprising a barrier disposed between the first groove and the display area, an organic insulating portion disposed on one side of the barrier away from the display area, a second groove disposed between the barrier and the Petition 870250108836, dated 11 / 27 / 2025, page 10 / 58 3 / 25 organic insulating portion, and a first wiring hole disposed in the organic insulating portion and located on one side of the first slot near the display area; a light-emitting layer placed on a surface of the organic insulating layer, away from the substrate and corresponding to the display area; an encapsulation layer placed on a surface of the light-emitting layer away from the substrate, the encapsulation layer being placed in the display area and extending to the non-display area, the encapsulation layer covering a portion of the organic insulating portion and not extending to the first wiring hole;and a touch-sensitive layer disposed on a surface of the encapsulation layer away from the substrate, the touch-sensitive layer comprising a first insulating sublayer and a first metallic sublayer, the first insulating sublayer covering a portion of the encapsulation layer and a portion of the organic insulating portion, the first insulating sublayer comprising a second wiring hole corresponding to the first wiring hole, the first metallic sublayer comprising a plurality of touch-sensitive wires, the touch-sensitive wires being disposed on a surface of the first insulating sublayer away from the substrate and extending to the second wiring hole; wherein the touch-sensitive layer further comprises a second insulating sublayer, the second insulating sublayer being disposed on a surface of the encapsulation layer away from the substrate, the second insulating sublayer being disposed in the display area and extending into the non-display area, and the outer limit of the second insulating sublayer in the non-display area not exceeding the limit of the encapsulation layer. Petition 870250108836, dated 11 / 27 / 2025, page 11 / 58 4 / 25

[008] According to an embodiment of the present patent application, the encapsulation layer comprises a first lateral surface close to the first wiring hole; wherein the first insulating sublayer comprises a stepped slope corresponding to the first lateral surface; where a first angle is formed between the first lateral surface and the substrate; where a second angle is formed between the stepped slope and the substrate; where the first angle and the second angle are both less than 90 degrees, and the first angle is greater than the second angle.

[009] According to an embodiment of the present patent application, the thickness of the first insulating sublayer located on the stepped slope near the display area is greater than the thickness of the first insulating sublayer located on the stepped slope away from the display area.

[010] According to one embodiment of the present patent application, the second insulating sublayer comprises an inorganic insulating material and the first insulating sublayer comprises an organic insulating material.

[011] According to an embodiment of the present patent application, the touch-sensitive layer further comprises: a second metallic sublayer disposed over a surface of the second insulating sublayer set away from the substrate, the second metallic sublayer comprising a plurality of touch-sensitive conductors; wherein the first insulating sublayer covers at least part of the touch-sensitive conductors, the first insulating sublayer comprising a third wiring hole disposed between the stepped slope and the display area, one end of the touch-sensitive conductor extending to the display area and the other end extending to the third hole. Petition 870250108836, dated 11 / 27 / 2025, p. 12 / 58 5 / 25 wiring, at least part of the touch-sensitive wires are electrically connected to the corresponding touch-sensitive conductors through the third wiring holes.

[012] According to one embodiment of this patent application, the touch-sensitive layer further comprises: a third insulating sublayer disposed between the second metallic sublayer and the first metallic sublayer, the third insulating sublayer comprising an inorganic insulating material, the first insulating sublayer comprising an organic insulating material, the first insulating sublayer being disposed only in the non-display area and not overlapping the third insulating sublayer; wherein the first metallic sublayer comprises a plurality of touch-sensitive electrodes arranged in the display area; wherein the third insulating sublayer comprises a plurality of fourth wiring holes, and part of the touch-sensitive electrodes are electrically connected to the corresponding touch-sensitive conductors through the fourth wiring holes.

[013] According to an embodiment of the present patent application, the first insulating sublayer additionally covers the display area and is disposed between the second metallic sublayer and the first metallic sublayer, the first insulating sublayer additionally comprises a fifth wiring hole disposed in the third wiring hole near the display area; wherein the first metallic sublayer comprises a plurality of touch-sensitive electrodes arranged in the display area, and some of the touch-sensitive electrodes are electrically connected to the corresponding touch-sensitive conductors through the fifth wiring holes. Petition 870250108836, dated 11 / 27 / 2025, p. 13 / 58 6 / 25

[014] According to one embodiment of the present patent application, the first angle varies between 75° and 90°, and the second angle varies between 30° and 60°.

[015] According to one embodiment of the present patent application, on the surface of the organic insulating portion away from the substrate, the surface roughness of the area not covered by the encapsulation layer is greater than the surface roughness of the area covered by the encapsulation layer.

[016] The present patent application also provides a display panel comprising a display area and a non-display area disposed on one side of the display area, wherein the display panel comprises: a substrate; an inorganic insulating layer disposed on a substrate surface, the inorganic insulating layer comprising a first groove disposed in the non-exposed area; an organic insulating layer disposed over a surface of the inorganic insulating layer away from the substrate, the organic insulating layer comprising a barrier disposed between the first slot and the display area, an organic insulating portion disposed on one side of the barrier away from the display area, a second slot disposed between the barrier and the organic insulating portion, and a first wiring hole disposed in the organic insulating portion and located on one side of the first slot near the display area; a light-emitting layer placed on a surface of the organic insulating layer, away from the substrate and corresponding to the display area; an encapsulation layer placed on a surface of the light-emitting layer away from the substrate, the encapsulation layer being placed in the display area and extending to the non-display area, the encapsulation layer Petition 870250108836, dated 11 / 27 / 2025, p. 14 / 58 7 / 25 covering a portion of the organic insulating portion and not extending to the first wiring hole; and a touch-sensitive layer disposed on a surface of the encapsulation layer away from the substrate, the touch-sensitive layer comprising a first insulating sublayer and a first metallic sublayer, the first insulating sublayer covering a portion of the encapsulation layer and a portion of the organic insulating portion, the first insulating sublayer comprising a second wiring hole corresponding to the first wiring hole, the first metallic sublayer comprising a plurality of touch-sensitive wires, the touch-sensitive wires being disposed on a surface of the first insulating sublayer away from the substrate and extending to the second wiring hole.

[017] According to an embodiment of the present patent application, the encapsulation layer comprises a first lateral surface close to the first wiring hole; wherein the first insulating sublayer comprises a stepped slope corresponding to the first lateral surface; where a first angle is formed between the first lateral surface and the substrate; where a second angle is formed between the stepped slope and the substrate; where the first angle and the second angle are both less than 90 degrees, and the first angle is greater than the second angle.

[018] According to an embodiment of the present patent application, the thickness of the first insulating sublayer located on the stepped slope near the display area is greater than the thickness of the first insulating sublayer located on the stepped slope away from the display area.

[019] According to an embodiment of the present patent application, the touch-sensitive layer further comprises: Petition 870250108836, dated 11 / 27 / 2025, page 15 / 58 8 / 25 a second insulating sublayer disposed over a surface of the encapsulation layer away from the substrate, the second insulating sublayer being disposed in the display area and extending into the non-display area, the outer limit of the second insulating sublayer in the non-display area not exceeding the limit of the encapsulation layer; wherein the first insulating sublayer covers a portion of the second insulating sublayer and a portion of the organic insulating portion.

[020] According to one embodiment of the present patent application, the second insulating sublayer comprises an inorganic insulating material and the first insulating sublayer comprises an organic insulating material.

[021] According to one embodiment of this patent application, the touch-sensitive layer further comprises: a second metallic sublayer disposed over a surface of the second insulating sublayer set away from the substrate, the second metallic sublayer comprising a plurality of touch-sensitive conductors; wherein the first insulating sublayer covers at least part of the touch-sensitive conductors, the first insulating sublayer comprises a third wiring hole disposed between the stepped slope and the display area, one end of the touch-sensitive conductor extends to the display area and the other end extends to the third wiring hole, at least part of the touch-sensitive wires are electrically connected to the corresponding touch-sensitive conductors through the third wiring holes.

[022] According to one embodiment of this patent application, the touch-sensitive layer further comprises: a third insulating sublayer disposed between the second metallic sublayer and the first metallic sublayer, the third insulating sublayer comprising an inorganic insulating material, the first insulating sublayer comprising a Petition 870250108836, dated 11 / 27 / 2025, p. 16 / 58 9 / 25 organic insulating material, the first insulating sublayer is placed only in the non-display area and does not overlap the third insulating sublayer; wherein the first metallic sublayer comprises a plurality of touch-sensitive electrodes arranged in the display area; wherein the third insulating sublayer comprises a plurality of fourth wiring holes, and some of the touch-sensitive electrodes are electrically connected to the corresponding touch-sensitive conductors through the fourth wiring holes.

[023] According to an embodiment of the present patent application, the first insulating sublayer also covers the display area and is disposed between the second metallic sublayer and the first metallic sublayer, the first insulating sublayer further comprises a fifth wiring hole disposed in the third wiring hole and close to the display area; wherein the first metallic sublayer comprises a plurality of touch-sensitive electrodes arranged in the display area, and some of the touch-sensitive electrodes are electrically connected to the corresponding touch-sensitive conductors through the fifth wiring holes.

[024] According to one embodiment of the present patent application, the first angle varies between 75° and 90°, and the second angle varies between 30° and 60°.

[025] According to an embodiment of the present patent application, on the surface of the organic insulating portion away from the substrate, the surface roughness of the area not covered by the encapsulation layer is greater than the surface roughness of the area covered by the encapsulation layer.

[026] The present patent application also provides a display device comprising a display panel provided in the embodiments of the present patent application. Petition 870250108836, dated 11 / 27 / 2025, page 17 / 58 10 / 25 ADVANTAGEOUS EFFECTS

[027] In summary, compared with the state of the art, embodiments of the present invention provide a display panel and a display device, the display panel includes a display area and a non-display area, a substrate, an inorganic insulating layer, an organic insulating layer, a light-emitting layer, an encapsulation layer and a touch-sensitive layer, the touch-sensitive layer includes a first insulating sublayer and a first metallic sublayer, the first metallic sublayer includes a plurality of touch-sensitive wires and the first insulating sublayer includes a second wiring hole corresponding to the first wiring hole, and the touch-sensitive wires are arranged on a surface of the first insulating sublayer away from the substrate and extend to the second wiring hole.In the embodiments of the present patent application, after the encapsulation layer is etched, through the formation of the first insulating sublayer, the problems of high surface roughness of the layers after etching and poor leveling and metallic residues are improved, thus improving the overall performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[028] FIG. 1 is a schematic plan view illustrating the structure of a display panel provided in the prior art.

[029] FIG. 2 is a schematic view illustrating the layered structure of a display panel provided in embodiments of the present patent application.

[030] FIG. 3 is a schematic view illustrating the layered structure of a partial area of ​​the display panel provided in the embodiments of the present patent application.

[031] FIGS. 4 to 6 are schematic views illustrating the manufacturing process of the display panel provided in the embodiments of the present patent application. Petition 870250108836, dated 11 / 27 / 2025, page 18 / 58 11 / 25 DETAILED DESCRIPTION OF THE MODALITIES

[032] The following embodiment description refers to the attached drawings, which illustrate specific embodiments that can be implemented in the present patent application.

[033] With the continuous development of panel and display device manufacturing technology, higher requirements have been placed on the performance and display effect of display devices.

[034] Compared to the traditional display panel, as shown in FIG. 1, FIG. 1 is a schematic plan view illustrating the structure of a display panel provided in the prior art. Functional layers of the display panel 100 need to be encapsulated after the formation of the functional layers of the display panel 100. The display panel 100 includes a display area 140 and a non-display area 141. In embodiments of the present patent application, a wiring area 39 and a bending area 40 are provided in the non-display area 141, wherein a plurality of first wiring holes K1 are provided in the wiring area 39, and the wiring area 39 is provided on a side near the display area 140, and the bending area 40 is provided on a side near the edge of the display panel 100. The display panel 100 is also provided with an encapsulation layer 20.Specifically, encapsulation layer 20 is provided in the display area 140 and extends into the non-display area 141; for example, encapsulation layer 20 extends into the bending area 40 in the non-display area 141. Encapsulation layer 20 includes an inner boundary 143 and an outer boundary 142. An encapsulation area with a given width is formed between the inner boundary 143 of encapsulation layer 20 and the outer boundary 142 of encapsulation layer 20 to effectively encapsulate the display panel 100. Petition 870250108836, dated 11 / 27 / 2025, page 19 / 58 12 / 25

[035] A plurality of wiring holes 301 is provided in the connection area of ​​the display panel 100, and a metallic layer disposed in the encapsulation layer 20 is electrically connected to the matrix substrate 119 through the wiring holes 301. However, in the prior art, when etching the encapsulation layer 20, due to the large tilt angle of the encapsulation layer 20 at the inner limit 143 and the outer limit 142, the amount of etching of the encapsulation layer 20 in these parts is large, resulting in metal residue and leading to a large surface roughness and poor layer leveling after etching. If a touch-sensitive metallic layer is formed in the encapsulation layer 20, short circuits are likely to occur between the touch-sensitive metallic layer and other metals, which reduces the reliability and overall performance of the display panel 100.

[036] The embodiments of the present patent application provide a display panel and a display device to effectively improve the problem of unsatisfactory recording effect in the recording area due to the large tilt angle after recording the encapsulation layer 20 of the display panel 100 and the poor leveling of the recorded layer during the recording process of the encapsulation layer 20 of the display panel 100.

[037] As shown in FIG. 2, FIG. 2 is a schematic view illustrating the layered structure of a display panel 100 provided in the embodiments of the present patent application. The layered structure described in the embodiments below is a layered structure located in the encapsulation area. The display panel 100 includes a substrate and a plurality of functional layers arranged on the substrate. Specifically, the display panel 100 includes a substrate and functional layers arranged on the substrate. Petition 870250108836, dated 11 / 27 / 2025, page 20 / 58 13 / 25

[038] Specifically, in the following embodiments, the substrate is described as an example of a conventional matrix substrate.

[039] FIG. 2 is a schematic view illustrating the layer structure of a partial area of ​​the display panel 100. Specifically, FIG. 2 schematically shows a portion of the display area 140, a wiring area 39, and a portion of the bending area 40 of the display panel 100. The display panel 100 includes a substrate 119, an inorganic insulating layer 200, an organic insulating layer 17, a first signal wiring layer 404, a barrier 63, a second signal wiring layer 104, a light-emitting layer 174, a pixel definition layer 175, and an encapsulation layer 20.

[040] Specifically, the inorganic insulating layer 200 is disposed over the matrix substrate 119, the first signal wiring layer 404 is disposed over the organic insulating layer 200. In embodiments of the present patent application, the organic insulating layer 17 is illustrated by taking as examples the first leveling layer 171 and the second layer of

[041] Specifically, the first leveling layer 171 is laid over the inorganic insulating layer 200 and covers the first signal wiring layer 404. The second signal wiring layer 405 is laid over the first leveling layer 171, the second leveling layer 105 is laid over the first leveling layer 171 and covers the second signal wiring layer 104.

[042] In the embodiments of the present patent application, the inorganic insulating layer 200, the first leveling layer 171 and the second leveling layer 105 are all arranged in the display area 140 and extend into the non-display area 141. In the non-display area 141, the inorganic insulating layer 200 further includes a first groove. The structure of the first groove is not shown in FIG. 2. The first groove is arranged in the area of Petition 870250108836, dated 11 / 27 / 2025, page 21 / 58 14 / 25 bending 40 corresponding to the non-display area 141, for example, the first groove is arranged on one side of the bending area 40 away from the display area 140. By providing the first groove in the bending area 40, the first groove can remove some material from part of the inorganic insulating layer 200, thus reducing the bending stress required when the display panel 100 is bent and improving the bending performance of the display panel 100, and enabling cross-linking of different signal wires through the first groove.

[043] The first signal wiring layer 404 can be formed in the same layer as the source / drain metal layer in the display area 140 of the matrix substrate 119 when forming the first signal wiring layer 404 in the non-display area 141. For example, when forming the first source / drain metal layer of the matrix substrate 119, the first source / drain metal layer corresponds to the non-display area 141 and is the first signal wiring layer 404; when forming the second source / drain metal layer of the matrix substrate 119, the second source / drain metal layer corresponds to the non-display area 141 and is the second signal wiring layer 104. Thus, the transmissions of the control signals are carried out through the first signal wiring layer 404 and the second signal wiring layer 104, and the normal operation of the display panel 100 is ensured.

[044] In the embodiments of the present patent application, in the undisclosed area 141, the second signal wiring layer 104 is arranged in the wiring area 39 to perform signal transmission. The second signal wiring layer 104 is electrically connected to the first signal wiring layer 404, for example, the first signal wiring layer 404 and the second signal wiring layer 104, which belong to two different signal wiring layers, are electrically connected through the through-hole structure. Petition 870250108836, dated 11 / 27 / 2025, page 22 / 58 15 / 25

[045] With reference to FIG. 2, the second leveling layer 105 includes a barrier 63 disposed between the first groove and the display area 140, and an organic insulating portion 1721 disposed on one side of the barrier 63 away from the display area 140.

[046] Furthermore, a second groove 65 and a first wiring hole K1 are arranged between the barrier 63 and the organic insulating portion 1721, the first wiring hole K1 being arranged on one side of the organic insulating portion 1721 away from the second groove 65. In embodiments of the present patent application, the first wiring hole K1 is arranged in the wiring area 39 and penetrates the second leveling layer 105 to perform the electrical connection between different signal wires.

[047] In embodiments of the present patent application, the light-emitting layer 174 is disposed in the display area 140 and on a surface of the second leveling layer 105 set away from the substrate 119. A pixel definition layer 175 corresponding to the light-emitting layer 174 is also provided. In embodiments of the present patent application, in the area of ​​the second groove 65, the pixel definition layer 175 overlaps the second leveling layer 105 to form the barrier 63 in embodiments of the present patent application.

[048] Furthermore, the encapsulation layer 20 is arranged on a surface of the light-emitting layer 174 away from the substrate 119. The encapsulation layer 20 is arranged in the display area 140 and extends into the non-display area 141. As the barrier 63 is formed in the non-display area 141 by an etching process, the protruding barrier 63 can further increase the contact area between the encapsulation layer 20 and other layers, thus improving the encapsulation effect. In the embodiments of the present patent application, the area corresponding to the barrier 63 is the effective encapsulation area 38 of the panel. Petition 870250108836, dated 11 / 27 / 2025, page 23 / 58 16 / 25 display 100, which is configured to ensure the sealing effect of the display panel 100.

[049] In the embodiments of the present patent application, the encapsulation layer 20 covers at least part of the organic insulating portion 1721 of the second leveling layer 105, and the encapsulation layer 20 does not extend to the first wiring hole K1. The encapsulation layer 20 covers the second groove 65 and comes into direct contact with and seals the surface of the inorganic insulating layer 200 away from the substrate 119 in this area. The thickness of the encapsulation layer 20 in the second groove 65 is greater than the thickness of the encapsulation layer 20 corresponding to the organic insulating portion 1721.

[050] Furthermore, the touch-sensitive layer of the display panel 100 is disposed on a surface of the encapsulation layer 20 detached from the substrate 119 to perform the touch-sensitive function of the display panel 100. In embodiments of the present patent application, the touch-sensitive layer 16 includes a first insulating sublayer 106, a second insulating sublayer 203, a first metallic sublayer 19 and a second metallic sublayer 201. The first metallic sublayer 19 includes a plurality of touch-sensitive wires 107.

[051] The second insulating sublayer 203 is placed on a surface of the encapsulation layer 20 distant from the substrate 119, the second metallic sublayer 201 is placed on the second insulating sublayer 203, the first insulating sublayer 106 is placed on the second insulating sublayer 203 and covers the second metallic sublayer 201. The touch-sensitive wires 107 are placed on the first insulating sublayer 106.

[052] In the embodiments of this patent application, the first insulating sublayer 106 also includes a second wiring hole K2 corresponding to the first wiring hole K1. For example, the second wiring hole K2 is arranged above Petition 870250108836, dated 11 / 27 / 2025, p. 24 / 58 17 / 25 from the first wiring hole K1 and connects to the first wiring hole K1. The touch-sensitive wires 107 extend to the second wiring hole K2 and are electrically connected to the second signal wiring layer 104 through the first wiring hole K1 and the second wiring hole K2 to perform the touch-sensitive signal transmission.

[053] In the embodiments of the present patent application, the first insulating sublayer 106 covers a portion of the encapsulation layer 20 and a portion of the organic insulating portion 1721. Due to the large amount of etching for the encapsulation layer 20 during the etching process, on the surface of the organic insulating portion 1721 away from the substrate 119, the surface roughness of the area not covered by the encapsulation layer 20 is greater than the surface roughness of the area covered by the encapsulation layer 20.

[054] Specifically, the surface roughness of the area of ​​the organic insulating portion 1721 not covered by the encapsulation layer 20 is 5-11.5, while the surface roughness of the area of ​​the organic insulating portion 1721 covered by the encapsulation layer 20 is 1.5-3.5. Optionally, the surface roughness of the area of ​​the organic insulating portion 1721 not covered by the encapsulation layer 20 is 6, 8, or 10. The surface roughness of this area is large and the flatness is poor, which is not conducive to the deposition of other layers. In addition, there may be residual metal due to over-etching. The surface roughness of the area of ​​the organic insulating portion 1721 covered by the encapsulation layer 20 is 1.6 or 2. Since the surface of this area is not etched, the surface roughness of this area is small and the flatness is good.

[055] Therefore, in the embodiments of this patent application, by providing the first insulating sublayer 106, the organic insulating layer in the area not covered by the layer of Petition 870250108836, dated 11 / 27 / 2025, p. 25 / 58 18 / 25 encapsulation 20 can be covered again by the first insulating sublayer 106. Thus, coverage of layers with greater roughness is achieved and the leveling of subsequent layers is guaranteed.

[056] With reference to FIG. 2 in the embodiments of the present patent application, the encapsulation layer 20 includes a first lateral surface 188 on the edge away from the display area 140, such as near the first wiring hole K1. In the embodiments of the present patent application, the encapsulation layer 20 is provided with an organic-inorganic laminated structure. When the aforementioned encapsulation layer 20, endowed with an organic-inorganic laminated structure, is etched, a first leveled lateral surface 188 is formed on the edge of the encapsulation layer 20 by the etching process. This is not repeated here.

[057] Furthermore, in the embodiments of the present patent application, the first insulating sublayer 106 includes a stepped slope 191 corresponding to the first lateral surface 188.

[058] A first angle α1 is formed between the first lateral surface 188 and the substrate 119 when forming the first lateral surface 188 and the first insulating sublayer 106. That is, the first angle α1 is an acute angle formed between the plane corresponding to the first lateral surface 188 and the plane corresponding to the surface of the substrate 119. Similarly, a second angle α2 is formed between the stepped slope 191 and the substrate 119.

[059] The first angle α1 and the second angle α2 are both acute angles formed between the corresponding planes, that is, the first angle α1 and the second angle α2 are both less than 90°. And the first angle α1 is greater than the second angle α2.

[060] Specifically, the first angle α1 varies between 75° and 90°, and the second angle α2 varies between 30° and 60°. Petition 870250108836, dated 11 / 27 / 2025, page 26 / 58 19 / 25 Optionally, the first angle α1 is 80°, while the second angle α2 is 50°. Furthermore, in order to reduce the discontinuity of the stepped slope 191, a difference between the first angle α1 and the second angle α2 of less than or equal to 30° is provided when forming the first angle α1 and the second angle α2, thus preventing the stepped slope 191 from being too steep due to the second angle α2 being too large, just as the first angle α1 being too large is not conducive to forming other layers.

[061] Furthermore, the thickness of the first insulating sublayer 106 located on the stepped slope 191 on a side near the display area 140 is greater than the thickness of the first insulating sublayer 106 located on the stepped slope 191 on a side away from the display area 140.

[062] Furthermore, the second insulating sublayer 203 is located in the display area 140 and extends into the non-display area 141. For example, the outer limit of the second insulating sublayer 203 in the non-display area does not exceed the limit of the encapsulation layer 20.

[063] In one embodiment of the present patent application, the outer limit of the second insulating sublayer 203 is flush with the limit of the encapsulation layer 20 away from the display area 140, in which case the second insulating sublayer 203 forms the same first lateral surface 188 with the encapsulation layer 20.

[064] Furthermore, the first insulating sublayer 106 covers a portion of the second insulating sublayer 203 and a portion of the organic insulating portion 1721.

[065] In the embodiments of this patent application, the first insulating sublayer 106 and the second insulating sublayer 203 are made of organic or inorganic materials. Optionally, the first insulating sublayer 106 is made of organic insulating layer material and the second sublayer Petition 870250108836, dated 11 / 27 / 2025, p. 27 / 58 20 / 25 insulation 203 is made of inorganic insulating material. By making the first insulating sublayer 106 with organic insulating material, better leveling of the first insulating sublayer 106 is obtained and the leveling of its upper surface is ensured.

[066] With reference to FIG. 2, in embodiments of this patent application, the first insulating sublayer 106 also includes a third wiring hole K3. The third wiring hole K3 is disposed in a position between the stepped slope 191 and the display area 140. The second metallic sublayer 201 includes a plurality of touch-sensitive conductors. The first insulating sublayer 106 covers at least part of the touch-sensitive conductors. In embodiments of this patent application, one end of the touch-sensitive conductor extends into the display area 140 and the other end extends into the third wiring hole K3. Optionally, at least part of the touch-sensitive wires are electrically connected to the corresponding touch-sensitive conductors via the third wiring holes K3.In the embodiments of this patent application, by providing the third wiring hole K3, it is possible to connect the touch-sensitive wires in different layers and effectively reduce the layout area of ​​the touch-sensitive wires to obtain a narrow bezel display panel 100.

[067] In one embodiment of the present patent application, the first insulating sublayer 106 is provided only in the non-display area 141. The touch-sensitive layer further includes a third insulating sublayer disposed between the second metallic sublayer 201 and the first metallic sublayer 19. The third insulating sublayer is made of inorganic insulating material, while the first insulating sublayer 106 is made of organic insulating material. The first insulating sublayer 106 is disposed Petition 870250108836, dated 11 / 27 / 2025, p. 28 / 58 21 / 25 only in the non-display area 141 and does not overlap the third insulating sublayer.

[068] The third insulating sublayer further includes a plurality of fourth wiring holes (the fourth wiring holes are not shown in the drawings), for example, a plurality of fourth wiring holes are correspondingly arranged on one side of the third wiring hole K3 near the display area 140. The first metallic sublayer 19 further includes a plurality of touch-sensitive electrodes arranged in the display area 140. The third insulating sublayer and the corresponding touch-sensitive electrodes are not shown in FIG. 2. Some touch-sensitive electrodes are electrically connected to the touch-sensitive conductors below through the fourth wiring holes and then electrically connected to the corresponding touch-sensitive conductors above. Thus, the connection of the touch-sensitive signals in different layers through different wiring holes is achieved and the overall performance of the display panel 100 is guaranteed.

[069] In another embodiment of the present patent application, the first insulating sublayer 106 covers a portion of the display area 140 and is disposed between the second metallic sublayer 201 and the first metallic sublayer 19. The first insulating sublayer 106 includes a fifth wiring hole (the fifth wiring hole is not shown in the drawings) disposed on the side of the third wiring hole K3 near the display area 140. The first metallic sublayer 19 includes a plurality of touch-sensitive electrodes disposed in the display area 140. With reference to the above embodiments, some touch-sensitive electrodes are electrically connected to the corresponding touch-sensitive conductors through the fifth wiring holes. Thus, the connection of the touch-sensitive signals in different layers through different wiring holes is achieved and the overall performance of the display panel 100 is guaranteed. Petition 870250108836, dated 11 / 27 / 2025, p. 29 / 58 22 / 25

[070] As shown in FIG. 3, FIG. 3 is a schematic view illustrating the layer structure of a partial area of ​​the display panel 100 provided in embodiments of the present patent application. Specifically, the touch-sensitive layer further includes a transition platform 192. The transition platform 192 is connected to the stepped tilt 191 and is disposed on a side away from the display area 140. The transition platform 192 is a horizontal plane and the transition platform 192 is parallel to the upper surface of the substrate 119.

[071] In combination with the structure of FIG. 2, in the embodiments of the present patent application, the orthogonal projection of the first lateral surface 188 on the substrate 119 overlaps the orthogonal projection of the stepped slope 191 on the substrate 119. Specifically, the projection of the first lateral surface 188 lies within the orthogonal projection of the stepped slope 191. And the length of the stepped slope 191 is greater than the length of the first lateral surface 188. Thus, the slope of the stepped slope 191 is guaranteed and its recording effect is ensured.

[072] As shown in FIGS. 4-6, FIGS. 4 to 6 are schematic views illustrating the manufacturing process of the display panel 100 provided in the embodiments of the present patent application. The illustrated structure is a layered structure in a partial area of ​​the display panel 100. FIGS. 4 to 6 illustrate the manufacturing process of a second leveling layer 105, an encapsulation layer 20 and layers upon the same as an example. Other layers not shown may be formed according to a conventional manufacturing process, which will not be repeated here.

[073] With reference to FIG. 4, deposit each layer sequentially. Specifically, form a matrix substrate 119 according to matrix substrate manufacturing processes. Petition 870250108836, dated 11 / 27 / 2025, page 30 / 58 23 / 25 conventional. Next, deposit an inorganic insulating layer 200 over the substrate 119, then deposit a second signal wiring layer 104 and a first leveling layer 105 over the inorganic insulating layer 200, and standardize and record the first leveling layer 105. The first leveling layer 105 covers the second signal wiring layer 104.

[074] In addition, deposit an encapsulation layer 20 over the inorganic insulating layer 200. Record the encapsulation layer 20 after the deposition of the above layers is complete and form a first side surface 188 of the encapsulation layer 20 on a side away from the display area 140 and form a first wiring hole K1 in a position corresponding to the wiring area 39.

[075] With reference to FIG. 5, after etching the encapsulation layer 20, deposit a touch-sensitive layer 16 over the encapsulation layer 20. Specifically, form a second insulating sublayer 203 over the encapsulation layer 20. The second insulating sublayer 203 is laid in the display area 140 and extends into the non-display area 141. Then, form a second metallic sublayer 201 over the second insulating sublayer 203. Form a first insulating sublayer 106 over the second insulating sublayer 203 after the deposition of the second metallic sublayer 201 is completed, the first insulating sublayer 106 covering the second metallic sublayer 201. And perform a dry etching to the first insulating sublayer 106 to form a second wiring hole K2 and a third wiring hole K3.

[076] In the embodiments of the present patent application, the first insulating sublayer 106 includes a stepped slope 191. The acute angle formed between the stepped slope 191 and the horizontal plane of the substrate 119 is the second angle α2. The second angle α2 varies between 30° and 60°. Thus, it becomes Petition 870250108836, dated 11 / 27 / 2025, page 31 / 58 24 / 25 The slope of the stepped slope 191 is smaller, facilitating the deposition of other layers on top of it and ensuring the performance of the layers.

[077] With reference to FIG. 6, form the touch-sensitive wires 107 on the first insulating sublayer 106 after the first insulating sublayer 106 is formed. The touch-sensitive wires 107 are deposited on the first insulating sublayer 106 and extend to the second wiring hole K2. The touch-sensitive wires 107 are electrically connected to the second signal wiring layer 104 below through the second wiring hole K2 and the first wiring hole K1 to perform the touch-sensitive signal transmission.

[078] After forming the touch-sensitive layer, deposit an insulating protective layer 108 over the touch-sensitive layer. The insulating protective layer 108 completely covers the touch-sensitive wires 107 of the touch-sensitive layer for protection. Finally, a touch-sensitive display panel is formed as provided in the embodiments of the present patent application.

[079] In the embodiments of the present patent application, the first insulating sublayer 106 is configured to improve the height of the relief formed after the completion of the engraving of the encapsulation layer 20 and to further reduce its engraving angle by means of the staggered inclination, thus ensuring that the touch-sensitive wires 107 pass smoothly over the first insulating sublayer 106, guaranteeing the engraving effects of each layer and avoiding problems such as fracture of the touch-sensitive layer.

[080] In addition, the embodiments of the present patent application further provide a display device. The display device includes a display panel 100 provided in the embodiments of the present patent application. The encapsulation layer 20 and other layers in the display panel 100 are formed according to the structure provided in the embodiments of Petition 870250108836, dated 11 / 27 / 2025, page 32 / 58 25 / 25 present patent application. By forming different insulating layers to reduce the angle of inclination of the engraving and effectively improve the engraving effect during the manufacturing process of the display panel 100, it is possible to avoid problems such as large roughness and poor leveling of the layer surface during the engraving process, thus effectively improving the engraving effect and the overall performance of the display panel 100.

[081] In the embodiments of the present patent application, the flexible display device may be any product or component with a display function or touch-sensitive operation function, such as a foldable mobile phone, computer, electronic paper, display, etc. The specific type is not specifically limited.

[082] In summary, a display panel 100 and a display device provided in the embodiments of the present invention are described in detail above. Specific examples are used to explain the principles and embodiments of this patent application. The embodiments above are used only to help understand the technical solutions and central ideas of this patent application. Although the present invention discloses preferred embodiments as above, the preferred embodiments above are not intended to limit the present patent application. Changes and modifications made by those skilled in the art shall be covered by the scope of protection of this patent application as defined by the claims. Petition 870250108836, dated 11 / 27 / 2025, p. 33 / 58

Claims

1 / 6 CLAIMS 1. Display panel comprising a display area and a non-display area disposed on one side of the display area, characterized in that the display panel comprises: a substrate; an inorganic insulating layer disposed on a surface of the substrate, the inorganic insulating layer comprising a first groove disposed in the non-display area; an organic insulating layer disposed on a surface of the inorganic insulating layer away from the substrate, the organic insulating layer comprising a barrier disposed between the first groove and the display area, an organic insulating portion disposed on one side of the barrier away from the display area, a second groove disposed between the barrier and the organic insulating portion, and a first wiring hole disposed in the organic insulating portion and located on one side of the first groove near the display area;a light-emitting layer arranged on a surface of the organic insulating layer away from the substrate and corresponding to the display area; an encapsulation layer arranged on a surface of the light-emitting layer away from the substrate, the encapsulation layer being arranged in the display area and extending to the non-display area, the encapsulation layer covering a portion of the organic insulating layer and not extending to the first wiring hole;and a touch-sensitive layer disposed on a surface of the encapsulation layer away from the substrate, the touch-sensitive layer comprising a first insulating sublayer and a first metallic sublayer, the first insulating sublayer covering a portion of the encapsulation layer and a portion of the organic insulating portion, the first insulating sublayer comprising a second wiring hole corresponding to the first wiring hole, the first metallic sublayer comprising a plurality of touch-sensitive wires, the touch-sensitive wires being disposed on a surface of the first insulating sublayer away from the substrate and extending to the second wiring hole.

2. Display panel, according to claim 1, characterized in that the encapsulation layer comprises a first lateral surface close to the first wiring hole; wherein the first insulating sublayer comprises a stepped slope corresponding to the first lateral surface; wherein a first angle is formed between the first lateral surface and the substrate; wherein a second angle is formed between the stepped slope and the substrate; wherein the first angle and the second angle are both less than 90 degrees, and the first angle is greater than the second angle.

3. Display panel, according to claim 2, characterized in that the thickness of the first insulating sublayer located on the stepped slope near the display area is greater than the thickness of the first insulating sublayer located on the stepped slope away from the display area.

4. Display panel, according to claim 2, characterized in that the touch-sensitive layer further comprises: a second insulating sublayer disposed over a surface of the encapsulation layer away from the substrate, the second insulating sublayer being disposed in the display area and extending to the non-display area, the outer limit of the second insulating sublayer in the non-display area not exceeding the limit of the encapsulation layer; wherein the first insulating sublayer covers a portion of the second insulating sublayer and a portion of the organic insulating portion.

5. Display panel, according to claim 4, characterized in that the second insulating sublayer comprises an inorganic insulating material and the first insulating sublayer comprises an organic insulating material.

6. Display panel, according to claim 4, characterized in that the touch-sensitive layer further comprises: a second metallic sublayer disposed over a surface of the second insulating sublayer away from the substrate, the second metallic sublayer comprising a plurality of touch-sensitive conductors; wherein the first insulating sublayer covers at least part of the touch-sensitive conductors, the first insulating sublayer comprises a third wiring hole disposed between the stepped slope and the display area, one end of the touch-sensitive conductor extends to the display area and the other end extends to the third wiring hole, at least part of the touch-sensitive wires are electrically connected to the corresponding touch-sensitive conductors through the third wiring holes.

7. Display panel, according to claim 6, characterized in that the touch-sensitive layer further comprises: a third insulating sublayer disposed between the second metallic sublayer and the first metallic sublayer, the third insulating sublayer comprising an inorganic insulating material, the first insulating sublayer comprising an organic insulating material, the first insulating sublayer being disposed only in the non-display area and not overlapping the third insulating sublayer; wherein the first metallic sublayer comprises a plurality of touch-sensitive electrodes disposed in the display area; wherein the third insulating sublayer comprises a plurality of fourth wiring holes, and part of the touch-sensitive electrodes are electrically connected to the corresponding touch-sensitive conductors through the fourth wiring holes.

8. Display panel, according to claim 6, characterized in that the first insulating sublayer additionally covers the display area and is disposed between the second metallic sublayer and the first metallic sublayer, the first insulating sublayer further comprising a fifth wiring hole disposed in the third wiring hole and close to the display area; wherein the first metallic sublayer comprises a plurality of touch-sensitive electrodes disposed in the display area, and some of the touch-sensitive electrodes are electrically connected to the corresponding touch-sensitive conductors through the fifth wiring holes.

9. Display panel, according to claim 1, characterized in that on the surface of the organic insulating portion away from the substrate, the surface roughness of the area not covered by the encapsulation layer is greater than the surface roughness of the area covered by the encapsulation layer.

10. Display device comprising a display panel, characterized in that the display panel comprises a display area and a non-display area disposed on one side of the display area, the display panel comprising: Petition 870250087456, dated 09 / 26 / 2025, page 26 / 38 5 / 6 a substrate; an inorganic insulating layer disposed on a surface of the substrate, the inorganic insulating layer comprising a first groove disposed in the non-display area;an organic insulating layer disposed over a surface of the inorganic insulating layer away from the substrate, the organic insulating layer comprising a barrier disposed between the first groove and the display area, an organic insulating portion disposed over one side of the barrier away from the display area, a second groove disposed between the barrier and the organic insulating portion, and a first wiring hole disposed in the organic insulating portion and located over one side of the first groove near the display area; a light-emitting layer disposed over a surface of the organic insulating layer away from the substrate and corresponding to the display area;an encapsulation layer placed on a surface of the light-emitting layer away from the substrate, the encapsulation layer being placed in the display area and extending to the non-display area, the encapsulation layer covering part of the organic insulating portion and not extending to the first wiring hole;and a touch-sensitive layer disposed on a surface of the encapsulation layer away from the substrate, the touch-sensitive layer comprising a first insulating sublayer and a first metallic sublayer, the first insulating sublayer covering a part of the encapsulation layer and a part of the organic insulating portion, the first insulating sublayer comprising a second wiring hole corresponding to the first wiring hole, the first metallic sublayer comprising a plurality of touch-sensitive wires, the touch-sensitive wires being disposed on a surface of the first insulating sublayer away from the substrate and extending to the second wiring hole.

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