Display panel and display device

Abstract

The invention provides a display panel and a display device, the display panel is provided with a display area and a non-display area surrounding the display area, and the display panel comprises a substrate; the pixel definition layer is located on one side of the substrate, the pixel definition layer comprises a climbing area, and the climbing area is located in the non-display area; the touch layer is located on the side, away from the substrate, of the pixel definition layer, the touch layer comprises a plurality of touch wires, the touch wires are located in the non-display area, a gap exists between every two adjacent touch wires, and the projections, located on the plane where the substrate is located, of the touch wires and the climbing area are not overlapped. The touch performance of the display panel can be improved.

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] The display panel includes a display area and a non-display area arranged around the display area. The display area is used to display images, and the touch function can be realized in the display area. The non-display area does not display images and is used to set the drive circuit wiring of the display panel, including multiple touch lines.

[0003] When the pixel definition layer of the display panel is prepared, residues will be left in the non-display area to form a climbing area. Some touch lines overlap with the climbing area of ​​the pixel definition layer, which causes the metal of the touch layer to easily form etching residues in the climbing area when the touch lines are prepared, thereby affecting the touch performance of the display panel. Summary of the invention

[0004] In view of this, the present invention provides a display panel and a display device to at least solve the problem of poor touch performance caused by metal etching residues in the touch layer of the existing display panel.

[0005] In one aspect, an embodiment of the present invention provides a display panel, which has a display area and a non-display area surrounding the display area, and the display panel includes: a substrate; a pixel definition layer, the pixel definition layer is located on one side of the substrate, the pixel definition layer includes a climbing area, and the climbing area is located in the non-display area; a touch layer, the touch layer is located on the side of the pixel definition layer away from the substrate, the touch layer includes a plurality of touch lines, the touch lines are located in the non-display area, there is a gap between two adjacent touch lines, and the projection of the touch lines and the climbing area on the plane where the substrate is located does not overlap.

[0006] On the other hand, an embodiment of the present invention further provides a display panel, which has a display area and a non-display area, and the display panel includes: a substrate; a pixel definition layer, the pixel definition layer is located on one side of the substrate, the pixel definition layer includes a climbing area, and the climbing area is located in the non-display area; a touch layer, the touch layer is located on the side of the pixel definition layer away from the substrate, the touch layer includes a plurality of touch lines, the touch lines are located in the non-display area, and there is a gap between two adjacent touch lines, and the width of the gap is 6 to 20 μm.

[0007] In yet another aspect, an embodiment of the present invention further provides a display device, comprising any one of the above display panels.

[0008] The display panel and the display device of the present invention can avoid the area with uneven thickness of the photoresist layer in the design area of ​​the touch line by making the projection of the touch line and the climbing area on the plane where the substrate is located not overlapped, so that the thickness of the photoresist layer overlapping with the design area of ​​the touch line can be uniform, and further, under the same light intensity, after exposure and development, no photoresist residues in the design area of ​​the touch line can be left, thereby avoiding the metal of the touch layer from being etched and remaining in the design area of ​​the touch line, so that the metal between the touch lines is completely etched and insulated from each other, thereby improving the touch performance of the display panel; or, by making the gap width between two adjacent touch lines 6 to 20 μm, that is, widening the gap width between two adjacent touch lines compared with the prior art, thereby increasing the light intensity of exposure, avoiding the photoresist residues in the design area of ​​the touch line, thereby avoiding the metal of the touch layer from being etched and remaining in the design area of ​​the touch line, so that the metal between the touch lines is completely etched and insulated from each other, thereby improving the touch performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0010] Figure 1 is a schematic diagram of a display panel preparation process in the related art;

[0011] Figure 2 is a schematic diagram of the structure of a display panel in the thickness direction provided by an embodiment of the present invention;

[0012] Figure 3 is a schematic diagram of a top view structure of a display panel provided by an embodiment of the present invention;

[0013] Figure 4 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention;

[0014] Figure 5 is a schematic diagram of the structure of another display panel in the thickness direction provided by an embodiment of the present invention;

[0015] Figure 6 is a schematic diagram of another structure of a display panel in thickness direction provided by an embodiment of the present invention;

[0016] Figure 7 is a schematic diagram of another structure of a display panel in thickness direction provided by an embodiment of the present invention;

[0017] Figure 8 is a schematic diagram of another structure of a display panel in thickness direction provided by an embodiment of the present invention;

[0018] Fig. 9is a schematic diagram of another structure of a display panel in thickness direction provided by an embodiment of the present invention;

[0019] Fig.10 It is a structural schematic diagram of a display device provided by an embodiment of the present invention.

[0020] Reference numerals:

[0021] AA, display area;

[0022] NA, non-display area;

[0023] 10. Substrate;

[0024] 20. Climbing area;

[0025] 30. Touch layer;

[0026] 31. Touch control wiring;

[0027] 32. Touch drive wiring;

[0028] 33. Touch sensor wiring;

[0029] 34. Touch control backup wiring;

[0030] 35. Virtual routing;

[0031] 36. Test wiring;

[0032] 40. Isolation column;

[0033] 50. Support column;

[0034] 60. Planarization layer;

[0035] 70. Photoresist layer;

[0036] 200. Display device;

[0037] X, first direction;

[0038] Y, second direction. DETAILED DESCRIPTION

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0040] The words "first", "second" and the like used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. In addition, in the description of the present invention, the orientation or position relationship indicated by the terms "upper" and "lower" are based on the orientation or position relationship shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and features in different embodiments may be combined with each other.

[0042] In the related art, the display panel includes a display area and a non-display area arranged around the display area. The display area is used to display images, and the touch function can be realized in the display area. The non-display area does not display images and is used to set the drive circuit wiring of the display panel, including multiple touch lines.

[0043] When the pixel definition layer of the existing display panel is prepared, residues will be left in the non-display area to form a climbing area. The design of overlapping the above climbing area of ​​the pixel definition layer with some touch lines will cause the metal of the touch layer to easily form etching residues in the above climbing area when the touch lines are prepared, thereby affecting the touch performance of the display panel.

[0044] like Figure 1 As shown, Figure 1 It is a schematic diagram of a display panel preparation process in the related art, which specifically shows the photoresist coating and exposure and development process of the non-display area of ​​the display panel. The first step is to apply photoresist. At this time, the non-display area of ​​the display panel includes: a substrate 10, a climbing area 20, a planarization layer 60, a touch layer 30 and a photoresist layer 70 in sequence along the thickness direction of the display panel. The photoresist layer 70 is coated on the side of the touch layer 30 away from the substrate 10. The second step is to shrink the planarization layer 60. Specifically, the planarization layer 60 is retracted to the display area, and the non-display area no longer includes the planarization layer 60. The third step is exposure and development. This step is a step for preparing the wiring of the touch layer 30 by etching. The metal of the touch layer 30 at the exposure and development location will be etched away later to form wiring. The fourth step is to etch the wiring of the touch layer 30. This step can usually be done by dry etching.

[0045] However, when applying photoresist to form the photoresist layer 70, due to the effect of gravity, the photoresist accumulates at the bottom of the climbing area 20, which causes the photoresist layer 70 at the bottom of the climbing area 20 to be thicker than the climbing area 20 and the flat area. Under the same light intensity, after exposure and development, photoresist residues are likely to remain in the thicker areas of the photoresist layer 70. The closer to the bottom of the climbing area 20, the thicker the residual photoresist, and the greater the risk of subsequent metal etching residues in the touch layer 30. In addition, due to the overlapping design of some touch lines 31 and the above-mentioned climbing area 20 of the pixel definition layer, when preparing the touch lines 31, the metal of the touch layer 30 is likely to form etching residues in the above-mentioned climbing area, resulting in metal connections and conduction between adjacent touch lines 31, thereby affecting the touch performance of the display panel.

[0046] The inventor of this case has provided a solution to the problems existing in the prior art through careful and in-depth research. The present invention provides a display panel and a display device, wherein the display panel has a display area and a non-display area surrounding the display area, and the display panel comprises: a substrate; a pixel definition layer, the pixel definition layer is located on one side of the substrate, the pixel definition layer comprises a climbing area, and the climbing area is located in the non-display area; a touch layer, the touch layer is located on the side of the pixel definition layer away from the substrate, the touch layer comprises a plurality of touch lines, the touch lines are located in the non-display area, there is a gap between two adjacent touch lines, and the projection of the touch lines and the climbing area on the plane where the substrate is located does not overlap. Alternatively, the display panel has a display area and a non-display area, and the display panel includes: a substrate; a pixel definition layer, the pixel definition layer is located on one side of the substrate, the pixel definition layer includes a climbing area, and the climbing area is located in the non-display area; a touch layer, the touch layer is located on the side of the pixel definition layer away from the substrate, the touch layer includes multiple touch lines, the touch lines are located in the non-display area, there is a gap between two adjacent touch lines, and the width of the gap is 6 to 20 μm. The display panel and the display device of the present invention can avoid the area with uneven thickness of the photoresist layer in the design area of ​​the touch line by making the projection of the touch line and the climbing area on the plane where the substrate is located not overlapped, so that the thickness of the photoresist layer overlapping with the design area of ​​the touch line can be uniform, and further, under the same light intensity, after exposure and development, no photoresist residues in the design area of ​​the touch line can be left, thereby avoiding the metal of the touch layer from being etched and remaining in the design area of ​​the touch line, so that the metal between the touch lines is completely etched and insulated from each other, thereby improving the touch performance of the display panel; or, by making the gap width between two adjacent touch lines 6 to 20 μm, that is, widening the gap width between two adjacent touch lines compared with the prior art, thereby increasing the light intensity of exposure, avoiding the photoresist residues in the design area of ​​the touch line, thereby avoiding the metal of the touch layer from being etched and remaining in the design area of ​​the touch line, so that the metal between the touch lines is completely etched and insulated from each other, thereby improving the touch performance of the display panel.

[0047] The above is the core idea of ​​the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0048] On one hand, Figure 2 As shown, an embodiment of the present invention provides a display panel having a display area AA and a non-display area NA surrounding the display area AA. The display panel includes: a substrate 10 , a pixel definition layer and a touch layer 30 .

[0049] Specifically, the pixel definition layer is located on one side of the substrate 10. The pixel definition layer includes a climbing area 20, and the climbing area 20 is located in the non-display area NA. Specifically, the pixel definition layer includes a plurality of array-arranged pixel definition holes in the display area AA for accommodating the light-emitting material. Since the pixel definition layer has no function in the non-display area NA, the portion of the pixel definition layer in the non-display area NA will be removed, but a residue will be left at the edge of the non-display area NA to form the climbing area 20.

[0050] Specifically, the touch layer 30 is located on the side of the pixel definition layer away from the substrate 10. The touch layer 30 is used to form a touch unit and a touch line 31 to realize the touch function of the display panel. The touch layer 30 includes a plurality of touch lines 31, and the touch lines 31 are located in the non-display area NA, and there is a gap between two adjacent touch lines 31. That is, the touch lines 31 are insulated to avoid mutual influence between the touch lines 31, thereby affecting the touch performance of the display panel. In addition, the touch layer 30 can be made of titanium aluminum titanium metal material, which is not limited in this application.

[0051] Specifically, the projections of the touch line 31 and the climbing area 20 on the plane where the substrate 10 is located do not overlap. That is, the touch line 31 and the climbing area 20 do not overlap in the thickness direction of the display panel. The above-mentioned setting can make the design area of ​​the touch line 31 avoid the area with uneven thickness of the photoresist layer 70 when the display panel is subsequently coated with photoresist to prepare the photoresist layer 70, so that the thickness of the photoresist layer 70 overlapping with the design area of ​​the touch line 31 is uniform, and further, under the same light intensity, after exposure and development, there is no photoresist residue in the design area of ​​the touch line 31, thereby avoiding the etching residue of the metal of the touch layer 30 in the design area of ​​the touch line 31, so that the metal between the touch lines 31 is completely etched and insulated from each other, thereby improving the touch performance of the display panel.

[0052] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in some embodiments, the climbing area 20 is located at the edges of the non-display area NA away from the display area AA, and the height of the pixel definition layer in the climbing area 20 gradually decreases along the direction close to the display area AA. The climbing area 20 is the residue of the pixel definition layer after cleaning the non-display area NA. Due to the limitation of the cleaning process, the pixel definition layer material at the edge of the non-display area NA is difficult to be cleaned, so the residue forms the climbing area 20.

[0053] The touch line 31 is located around the display area AA, and the projection of the touch line 31 based on the substrate 10 is located inside the projection of the climbing area 20 based on the substrate 10. Since the climbing area 20 is located around the edges of the display area AA, the climbing area 20 forms a ring when viewed from above. Since the touch line 31 is closer to the display area AA than the climbing area 20, when viewed in a direction perpendicular to the plane where the display panel is located, the projection of the touch line 31 based on the substrate 10 is located inside the projection of the climbing area 20 based on the substrate 10. In addition, depending on the shape of the display panel, the touch line 31 may exist around the display area AA of the display panel. Figure 3 and Figure 4 Only a rectangle is taken as an example, but this application is not limited to this.

[0054] In the direction parallel to the plane where the substrate 10 is located, the distance between the touch line 31 and the climbing area 20 is 0-20 μm. Specifically, since the touch line 31 includes a touch drive line 32 and a touch sensing line 33, that is, Figure 2 and Figure 5 The value of the first distance D1 in is 0 to 20 μm. It is understandable that the distance between the touch line 31 and the climbing area 20 can be any value of 0 μm, 3 μm, 5 μm, 8 μm, 10 μm, 12 μm, 15 μm, 18 μm or 20 μm, and this application does not impose any restrictions on this. The above setting can avoid the non-display area NA from being too wide while avoiding the area with uneven thickness of the photoresist layer 70 in the design area of ​​the touch line 31, thereby affecting the narrow frame trend of the display panel.

[0055] Furthermore, the distance between the touch line 31 and the climbing area 20 can be 0.8 to 20 μm. When the distance between the touch line 31 and the climbing area 20 is too small, due to fluctuations in the manufacturing process, the two may still overlap in the direction parallel to the plane where the substrate 10 is located, affecting the touch performance of the display panel. The setting of the distance between the two being greater than 0.8 μm can avoid the above-mentioned process fluctuations and further improve the touch performance of the display panel.

[0056] Continue to refer Figure 4 and Figure 5In some embodiments, the touch layer 30 further includes: a plurality of touch driving units arranged along a first direction X and a plurality of touch sensing units arranged along a second direction Y, which are insulated from each other. The first direction X and the second direction Y intersect. Specifically, the first direction X and the second direction Y may be perpendicular. The touch driving unit and the touch sensing unit are located in the display area AA to realize the touch function of the display panel in the display area AA.

[0057] The touch lines 31 include: a plurality of touch drive lines 32 and a plurality of touch sensing lines 33, each of which is electrically connected to a touch drive unit, and each of which is electrically connected to a touch sensing unit. The touch drive lines 32 and the touch sensing lines 33 extend from the display area AA to the external device in the non-display area NA. The touch drive unit and the touch sensing unit are used to sense the capacitance change, generate a touch signal and transmit it to the external device through the touch drive lines 32 and the touch sensing lines 33, and are used to receive the touch signal sent by the external device through the touch drive lines 32 and the touch sensing lines 33.

[0058] Specifically, the width of the gap between two adjacent touch driving wires 32 and / or touch sensing wires 33 is 6-20 μm. Figure 5 The value of the second distance D2 is 6 to 20 μm. It is understandable that the value of the second distance D2 can be any one of 6 μm, 8 μm, 10 μm, 12 μm, 14 μm, 16 μm, 18 μm or 20 μm, and the present application does not impose any restrictions on this. Compared with the 3 μm width of the gap between two adjacent touch drive lines 32 and / or touch sensing lines 33 in the prior art, the above setting increases the gap width between two adjacent touch drive lines 32 and / or touch sensing lines 33, thereby increasing the exposure light intensity, avoiding photoresist residues in the design area of ​​the touch line 31, thereby avoiding etching residues of the metal of the touch layer 30 in the design area of ​​the touch line 31, so that the metal between the touch lines 31 is completely etched and insulated from each other, further improving the touch performance of the display panel.

[0059] Continue to refer Figure 5In some embodiments, the touch layer 30 further includes: a touch standby line 34, a virtual line 35, and a test line 36 located in the non-display area NA. Among them, at least one of the touch standby line 34, the virtual line 35, and the test line 36 overlaps with the projection of the climbing area 20 on the plane where the substrate 10 is located. It should be noted that when the touch line 31 does not overlap with the climbing area 20, other lines can be set to overlap with the climbing area 20 to reduce the width of the non-display area NA of the display panel and achieve a narrow frame. Specifically, the above-mentioned lines are different from the touch lines 31, and will not cause preparation problems due to overlapping with the climbing area 20, thereby affecting the performance of the display panel. Optionally, the touch standby line 34, the virtual line 35, and the test line 36 all overlap with the projection of the climbing area 20 on the plane where the substrate 10 is located to further reduce the width of the non-display area NA.

[0060] The display panel of the present invention makes the projections of the touch line 31 and the climbing area 20 on the plane where the substrate 10 is located not overlapped, so that the design area of ​​the touch line 31 can avoid the area where the thickness of the photoresist layer 70 is uneven, and the thickness of the photoresist layer 70 overlapping with the design area of ​​the touch line 31 is uniform. Further, under the same light intensity, after exposure and development, there is no photoresist residue in the design area of ​​the touch line 31, thereby avoiding the etching residue of the metal of the touch layer 30 in the design area of ​​the touch line 31, so that the metal between the touch lines 31 is completely etched and insulated from each other, thereby improving the touch performance of the display panel.

[0061] On the other hand, Figure 6 As shown, an embodiment of the present invention further provides a display panel, which has a display area AA and a non-display area NA surrounding the display area AA. The display panel includes: a substrate 10 , a pixel definition layer and a touch layer 30 .

[0062] Specifically, the pixel definition layer is located on one side of the substrate 10. The pixel definition layer includes a climbing area 20, and the climbing area 20 is located in the non-display area NA. Specifically, the pixel definition layer includes a plurality of array-arranged pixel definition holes in the display area AA for accommodating the light-emitting material. Since the pixel definition layer has no function in the non-display area NA, the portion of the pixel definition layer in the non-display area NA will be removed, but a residue will be left at the edge of the non-display area NA to form the climbing area 20.

[0063] Specifically, the touch layer 30 is located on the side of the pixel definition layer away from the substrate 10. The touch layer 30 is used to form a touch unit and a touch line 31 to realize the touch function of the display panel. The touch layer 30 includes a plurality of touch lines 31, and the touch lines 31 are located in the non-display area NA, and there is a gap between two adjacent touch lines 31. That is, the touch lines 31 are insulated to avoid mutual influence between the touch lines 31, thereby affecting the touch performance of the display panel. In addition, the touch layer 30 can be made of titanium aluminum titanium metal material, which is not limited in this application.

[0064] Specifically, there is a gap between two adjacent touch lines 31, and the width of the gap is 6-20 μm. Figure 6 The value of the third distance D3 is 6 to 20 μm. It is understandable that the value of the third distance D3 can be any one of 6 μm, 8 μm, 10 μm, 12 μm, 14 μm, 16 μm, 18 μm or 20 μm, and the present application does not impose any restrictions on this. It should be noted that compared with the 3 μm width of the gap between two adjacent touch drive lines 32 and / or touch sensing lines 33 in the prior art, the above setting increases the gap width between two adjacent touch drive lines 32 and / or touch sensing lines 33, thereby increasing the exposure light intensity, avoiding photoresist residues in the design area of ​​the touch line 31, thereby avoiding etching residues of the metal of the touch layer 30 in the design area of ​​the touch line 31, so that the metal between the touch lines 31 is completely etched and insulated from each other, further improving the touch performance of the display panel.

[0065] like Figure 4 and Figure 7 As shown, in some embodiments, the touch layer 30 further includes: a plurality of touch driving units arranged along a first direction X and a plurality of touch sensing units arranged along a second direction Y, which are insulated from each other. The first direction X and the second direction Y intersect. Specifically, the first direction X and the second direction Y may be perpendicular. The touch driving unit and the touch sensing unit are located in the display area AA to realize the touch function of the display panel in the display area AA.

[0066] The touch lines 31 include: a plurality of touch drive lines 32 and a plurality of touch sensing lines 33, each of which is electrically connected to a touch drive unit, and each of which is electrically connected to a touch sensing unit. The touch drive lines 32 and the touch sensing lines 33 extend from the display area AA to the external device in the non-display area NA. The touch drive unit and the touch sensing unit are used to sense the capacitance change, generate a touch signal and transmit it to the external device through the touch drive lines 32 and the touch sensing lines 33, and are used to receive the touch signal sent by the external device through the touch drive lines 32 and the touch sensing lines 33.

[0067] Specifically, the width of the gap between two adjacent touch driving wires 32 and / or touch sensing wires 33 is 6-20 μm. Figure 7 The value of the third distance D3 is 6-20 μm. Since the touch driving wire 32 and the touch sensing wire 33 are made by metal etching of the touch layer 30 and also need to be insulated from each other, the above arrangement can avoid signal interference between the touch driving wire 32 and the touch sensing wire 33 .

[0068] In some embodiments, the projections of the touch line 31 and the climbing area 20 on the plane where the substrate 10 is located do not overlap. The above setting makes the projections of the touch line 31 and the climbing area 20 on the plane where the substrate 10 is located not overlap, so that the design area of ​​the touch line 31 can avoid the area where the thickness of the photoresist layer 70 is uneven, so that the thickness of the photoresist layer 70 overlapping with the design area of ​​the touch line 31 is uniform, and then under the same light intensity, after exposure and development, there is no photoresist residue in the design area of ​​the touch line 31, thereby avoiding the etching residue of the metal of the touch layer 30 in the design area of ​​the touch line 31, so that the metal between the touch lines 31 is completely etched and insulated from each other, thereby improving the touch performance of the display panel.

[0069] Continue to refer Figure 3 and Figure 7 In some embodiments, the climbing area 20 is located at the edges of the non-display area NA away from the display area AA, and the height of the pixel definition layer in the climbing area 20 gradually decreases along the direction close to the display area AA. The climbing area 20 is the residue of the pixel definition layer after cleaning the non-display area NA. Due to the limitation of the cleaning process, the pixel definition layer material at the edge of the non-display area NA is difficult to be cleaned, so the residue forms the climbing area 20.

[0070] The touch line 31 is located around the display area AA, and the projection of the touch line 31 based on the substrate 10 is located inside the projection of the climbing area 20 based on the substrate 10. Since the climbing area 20 is located around the edges of the display area AA, the climbing area 20 forms a ring when viewed from above. Since the touch line 31 is closer to the display area AA than the climbing area 20, when viewed in a direction perpendicular to the plane where the display panel is located, the projection of the touch line 31 based on the substrate 10 is located inside the projection of the climbing area 20 based on the substrate 10. In addition, depending on the shape of the display panel, the touch line 31 may exist around the display area AA of the display panel. Figure 3 Only a rectangle is taken as an example, but this application is not limited to this.

[0071] In the direction parallel to the plane where the substrate 10 is located, the distance between the touch line 31 and the climbing area 20 is 0-20 μm. Specifically, since the touch line 31 includes a touch drive line 32 and a touch sensing line 33, that is, Figure 7 The value of the fourth distance D4 is 0 to 20 μm. It is understandable that the value of the fourth distance D4 can be any value of 0 μm, 3 μm, 5 μm, 8 μm, 10 μm, 12 μm, 15 μm, 18 μm or 20 μm, and the present application does not limit this. The above setting can avoid the non-display area NA from being too wide while avoiding the area with uneven thickness of the photoresist layer 70 in the design area of ​​the touch line 31, thereby affecting the narrow frame trend of the display panel.

[0072] Furthermore, the value of the fourth distance D4 can be 0.8 to 20 μm. When the distance between the touch trace 31 and the climbing area 20 is too small, due to fluctuations in the manufacturing process, the two may still overlap in the direction parallel to the plane where the substrate 10 is located, affecting the touch performance of the display panel. The setting of the distance between the two being greater than 0.8 μm can avoid the above-mentioned process fluctuations and further improve the touch performance of the display panel.

[0073] Continue to refer Figure 7 In some embodiments, the touch layer 30 further includes: a touch standby line 34, a virtual line 35, and a test line 36 located in the non-display area NA. Among them, at least one of the touch standby line 34, the virtual line 35, and the test line 36 overlaps with the projection of the climbing area 20 on the plane where the substrate 10 is located. It should be noted that when the touch line 31 does not overlap with the climbing area 20, other lines can be set to overlap with the climbing area 20 to reduce the width of the non-display area NA of the display panel and achieve a narrow frame. Specifically, the above-mentioned lines are different from the touch lines 31, and will not cause preparation problems due to overlapping with the climbing area 20, thereby affecting the performance of the display panel. Optionally, the touch standby line 34, the virtual line 35, and the test line 36 all overlap with the projection of the climbing area 20 on the plane where the substrate 10 is located to further reduce the width of the non-display area NA.

[0074] like Figure 8 and Fig. 9 As shown, in some embodiments, the display panel further includes: isolation columns 40 and a supporting layer.

[0075] Specifically, the isolation column 40 and the pixel definition layer are located on the same side of the substrate 10, and the isolation column 40 is located at the edge of the non-display area NA away from the display area AA and surrounds the climbing area 20. The isolation column 40 is used to prevent the film material of the display panel from being separated from the display panel during the preparation process of the display panel, and to protect the film structure inside the display panel.

[0076] Specifically, the support layer is located between the isolation column 40 and the touch layer 30, and the support layer includes a plurality of support columns 50, and the projection of some support columns 50 based on the substrate 10 is included in the projection of the isolation column 40 based on the substrate 10. The support column 50 is used to support the cover plate during the process of preparing the cover plate of the display panel to prevent the cover plate from crushing the internal film structure.

[0077] The projection of the touch line 31 and the support column 50 based on the substrate 10 does not overlap. If the touch line 31 overlaps the support column 50, it will cause the same problem as the overlap of the touch line 31 and the climbing area 20. Therefore, the above setting can avoid the metal of the touch layer 30 from being etched and left in the design area of ​​the touch line 31, so that the metal between the touch lines 31 is completely etched and insulated from each other, thereby improving the touch performance of the display panel.

[0078] In some embodiments, in some embodiments, the distance between the touch line 31 and the support column 50 is at least 0.8 μm in the direction parallel to the plane where the substrate 10 is located. When the distance between the touch line 31 and the support column 50 is too small, due to fluctuations in the manufacturing process, the two may still overlap in the direction parallel to the plane where the substrate 10 is located, affecting the touch performance of the display panel. The setting of the distance between the two being greater than 0.8 μm can avoid the above-mentioned process fluctuations and further improve the touch performance of the display panel.

[0079] In some embodiments, the display panel further includes: a planarization layer 60 ( Fig.10 (not shown in the figure). Specifically, the planarization layer 60 is located between the pixel definition layer and the touch layer 30 and is located in the display area AA. The planarization layer 60 can be prepared by an inkjet printing (IJP) process, and the material of the planarization layer 60 can be liquid. The isolation column 40 can prevent the liquid planarization layer 60 material from flowing out of the display panel during the inkjet printing process.

[0080] The display panel of the present invention increases the exposure light intensity by making the gap width between two adjacent touch lines 31 be 6 to 20 μm, that is, widening the gap width between two adjacent touch lines 31 compared with the prior art, thereby avoiding photoresist residue in the design area of ​​the touch line 31, thereby avoiding etching residue of the metal of the touch layer 30 in the design area of ​​the touch line 31, so that the metal between the touch lines 31 is completely etched and insulated from each other, thereby improving the touch performance of the display panel.

[0081] On the other hand, Fig.10As shown, an embodiment of the present invention further provides a display device 200, including the aforementioned display panel. The display device 200 can be: a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or any other product or component with a display function. The specific implementation and technical effects of the display device 200 of the present application can refer to the specific embodiments of the display panel above, and the repeated parts will not be repeated.

[0082] In summary, the display panel and the display device of the present invention can avoid the area with uneven thickness of the photoresist layer in the touch line design area by making the projection of the touch line and the climbing area on the plane of the substrate not overlap, so that the thickness of the photoresist layer overlapping with the touch line design area is uniform, and thus under the same light intensity, after exposure and development, there is no photoresist residue in the touch line design area, thereby avoiding the metal of the touch layer from being etched in the touch line design area. The metal between the touch lines is completely etched and insulated from each other, thereby improving the touch performance of the display panel; or, by making the gap width between two adjacent touch lines 6 to 20 μm, that is, widening the gap width between two adjacent touch lines compared with the prior art, thereby increasing the exposure light intensity, avoiding the photoresist residue in the touch line design area, thereby avoiding the metal of the touch layer from being etched in the touch line design area. The metal between the touch lines is completely etched and insulated from each other, thereby improving the touch performance of the display panel.

[0083] The above contents are further detailed descriptions of the present invention in combination with specific optional implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the scope of protection of the present invention.

Claims

1. A display panel, comprising a display area and a non-display area surrounding the display area, characterized in that: include: substrate; A pixel definition layer, the pixel definition layer is located on one side of the substrate, the pixel definition layer includes a climbing area, and the climbing area is located in the non-display area; A touch layer, wherein the touch layer is located on a side of the pixel definition layer away from the substrate, the touch layer comprises a plurality of touch traces, the touch traces are located in the non-display area, there is a gap between two adjacent touch traces, and the touch traces do not overlap with a projection of the climbing area on the plane where the substrate is located.

2. The display panel according to claim 1, characterized in that: The climbing area is located at the edges of the non-display area away from the display area, and the height of the pixel definition layer in the climbing area gradually decreases along the direction approaching the display area; The touch wiring is located around the display area, and the projection of the touch wiring based on the substrate is located inside the projection of the climbing area based on the substrate; Along a direction parallel to the plane where the substrate is located, the distance between the touch control trace and the climbing area is 0 to 20 μm.

3. The display panel according to claim 1, characterized in that: The touch layer further includes: a plurality of touch driving units arranged along a first direction and a plurality of touch sensing units arranged along a second direction and insulated from each other, the first direction and the second direction intersect, and the touch driving units and the touch sensing units are located in the display area; The touch control wiring includes: a plurality of touch control driving wirings and a plurality of touch control sensing wirings, each of the touch control driving wirings is electrically connected to one of the touch control driving units, and each of the touch control sensing wirings is electrically connected to one of the touch control sensing units; The width of the gap between two adjacent touch driving wires and / or touch sensing wires is 6-20 μm.

4. The display panel according to claim 1, characterized in that: The touch layer further includes: a touch backup routing, a virtual routing and a test routing located in the non-display area, wherein at least one of the touch backup routing, the virtual routing and the test routing overlaps with a projection of the climbing area on the plane where the substrate is located.

5. A display panel, the display panel having a display area and a non-display area, characterized in that: include: substrate; A pixel definition layer, the pixel definition layer is located on one side of the substrate, the pixel definition layer includes a climbing area, and the climbing area is located in the non-display area; A touch layer is located on a side of the pixel definition layer away from the substrate, the touch layer comprises a plurality of touch lines, the touch lines are located in the non-display area, a gap exists between two adjacent touch lines, and the width of the gap is 6 to 20 μm.

6. The display panel according to claim 5, characterized in that: The touch layer further includes: a plurality of touch driving units arranged along a first direction and a plurality of touch sensing units arranged along a second direction and insulated from each other, the first direction and the second direction intersect, and the touch driving units and the touch sensing units are located in the display area; The touch control wiring includes: a plurality of touch control driving wirings and a plurality of touch control sensing wirings, each of the touch control driving wirings is electrically connected to one of the touch control driving units, and each of the touch control sensing wirings is electrically connected to one of the touch control sensing units; The width of the gap between two adjacent touch driving wires or touch sensing wires is 6-20 μm.

7. The display panel according to claim 5, characterized in that: The touch control trace and the projection of the climbing area on the plane where the substrate is located do not overlap.

8. The display panel according to claim 7, characterized in that: The climbing area is located at the edges of the non-display area away from the display area, and the height of the pixel definition layer in the climbing area gradually decreases along the direction approaching the display area; The touch wiring is located around the display area, and the projection of the touch wiring based on the substrate is located inside the projection of the climbing area based on the substrate; Along a direction parallel to the plane where the substrate is located, the distance between the touch control trace and the climbing area is 0 to 20 μm.

9. The display panel according to claim 5, characterized in that: The touch layer further includes: a touch backup routing line, a virtual routing line and a test routing line located in the non-display area, and at least one of the touch backup routing line, the virtual routing line and the test routing line overlaps with a projection of the climbing area based on the substrate.

10. The display panel according to claim 5 or 9, characterized in that: Also includes: An isolation column, wherein the isolation column and the pixel definition layer are located on the same side of the substrate, and the isolation column is located at an edge of the non-display area away from the display area and surrounds the climbing area; A supporting layer, the supporting layer being located between the isolation column and the touch layer, the supporting layer comprising a plurality of supporting columns, and projections of some of the supporting columns based on the substrate are included in projections of the isolation column based on the substrate; Wherein, the touch control wiring and the support column do not overlap based on the projection of the substrate.

11. The display panel according to claim 10, characterized in that: Along a direction parallel to the plane where the substrate is located, the distance between the touch wiring and the support column is at least 0.8 μm.

12. The display panel according to claim 10, characterized in that: Also includes: A planarization layer is located between the pixel definition layer and the touch control layer and is located in the display area.

13. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 4, or comprises the display panel according to any one of claims 5 to 12.

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