Display panel and display device

Abstract

The invention provides a display panel and a display device. The problem that in the prior art, the touch sensitivity of a touch display screen is low is solved. The display panel comprises: a substrate; the shielding layer is located on the substrate, and the shielding layer comprises at least one through hole; the orthographic projection of the shielding part on the substrate covers the orthographic projection of the through hole on the substrate; and at least one touch wire, wherein at least part of the touch wire is located at one side, far away from the shielding layer, of the shielding part.

Description

Technical Field

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

[0002] With the continuous development of the smart terminal industry, touch display technology has developed rapidly. However, the touch sensitivity of the touch display in the related technology needs to be improved. Summary of the invention

[0003] In view of this, embodiments of the present application provide a display panel and a display device, which solve the problem of low touch sensitivity of touch display screens in the prior art.

[0004] In a first aspect, the present application provides a display panel, comprising: a substrate; a shielding layer located on the substrate, the shielding layer comprising at least one through hole; at least one shielding portion, the orthographic projection of the shielding portion on the substrate covering the orthographic projection of the through hole on the substrate; and at least one touch line, at least part of the touch line being located on the side of the shielding portion away from the shielding layer. According to the display panel provided in this embodiment, by providing a shielding portion covering the through hole above the through hole of the shielding layer, signal interference between the touch lines on both sides of the through hole and the array lines in the substrate is avoided, thereby improving the touch sensitivity.

[0005] In combination with the first aspect, in some possible implementations, the touch routing includes an electrically connected main touch routing and at least one auxiliary touch routing, the main touch routing is located on the side of the shielding part away from the shielding layer, and the auxiliary touch routing is on the same layer as the shielding part; and / or the display panel also includes a touch electrode layer, the touch electrode layer includes a first conductive layer and a second conductive layer, the first conductive layer is on the same layer as the shielding part, and at least part of the touch routing is on the same layer as the second conductive layer; optionally, the second conductive layer is on the same layer as the main touch routing; the first conductive layer is on the same layer as the auxiliary touch routing; optionally, the display panel has a display area and a frame area, at least part of the touch electrode layer is located in the display area, the touch routing is located in the frame area, and the shielding layer is located in the frame area; optionally, the main touch routing is electrically connected to the auxiliary touch routing through a via; the shielding layer includes a metal layer, and the first conductive layer and the second conductive layer are metal layers. By designing the touch line to be an electrically connected main touch line and an auxiliary touch line, and placing the auxiliary touch line and the shielding part on the same layer, the impedance of the touch line is reduced without adding an additional metal layer, thereby further improving the touch sensitivity.

[0006] In combination with the first aspect, in some possible implementations, at least one through hole includes a plurality of through holes, and the plurality of through holes are arranged in an array; optionally, at least one shielding portion includes a plurality of shielding portions, and the orthographic projection of each shielding portion on the substrate covers the orthographic projection of a row of through holes on the substrate. According to the display panel provided by this embodiment, a plurality of through holes are arranged in an array, and a shielding portion covers a row of through holes, which facilitates the wiring of the shielding portion. Optionally, a row of through holes includes at least two through holes, and the row direction is parallel to the extension direction of the shielding portion.

[0007] In combination with the first aspect, in some possible implementations, at least one shielding portion includes multiple shielding portions, and the auxiliary touch line is located between adjacent shielding portions; optionally, multiple auxiliary touch lines are arranged between adjacent shielding portions, and the multiple auxiliary touch lines between adjacent shielding portions are arranged sequentially along the extension direction of the shielding portion; optionally, the display panel has a display area and a frame area, and the shielding portion extends in a direction from the display area to the frame area. According to the display panel provided in this embodiment, when the shielding portion extends in a direction from the display area to the frame area, the auxiliary touch line is arranged between adjacent shielding portions, so that the auxiliary touch line does not need to occupy additional width of the frame area, which is conducive to achieving a narrow frame.

[0008] In combination with the first aspect, in some possible implementations, at least one touch line includes multiple touch lines, and the auxiliary touch lines of the multiple touch lines are arranged in an array; optionally, the touch line includes a column of auxiliary touch lines, and the main touch line is electrically connected to the column of auxiliary touch lines, and the column direction is parallel to the extension direction of the main touch line; optionally, the orthographic projection of the auxiliary touch line on the substrate and the orthographic projection of the main touch line electrically connected to the auxiliary touch line on the substrate at least partially overlap; optionally, the extension direction of the main touch line intersects with the extension direction of the shielding portion. According to the display panel provided in this embodiment, the orthographic projections of the auxiliary touch line and the main touch line on the substrate overlap, which facilitates the provision of conductive vias to achieve electrical connection between the auxiliary touch line and the main touch line.

[0009] In combination with the first aspect, in some possible implementations, the display panel further includes a connection portion electrically connected to the shielding portion; optionally, the shielding portion is connected to a DC voltage or grounded; optionally, the connection portion and the shielding portion are in the same layer; optionally, the connection portion is electrically connected to multiple shielding portions; optionally, the extension direction of the connection portion intersects with the extension direction of the shielding portion; the connection portion is electrically connected to multiple shielding portions arranged along the extension direction of the connection portion; optionally, the display panel has a display area and a frame area, and in the frame area, the connection portion is located on a side of the shielding portion away from the display area. According to the display panel provided in this embodiment, the shielding portion is connected to a DC voltage or grounded, and the shielding effect is better.

[0010] In combination with the first aspect, in some possible implementations, it further includes a driving circuit layer, which is located between the substrate and the shielding layer, and the shielding portion is located on the side of the shielding layer away from the substrate; optionally, the driving circuit layer includes at least one signal line, which is located between the substrate and the shielding layer, and the orthographic projection of at least part of the signal line on the substrate overlaps with the orthographic projection of the through hole on the substrate; optionally, the driving circuit layer includes a scanning driving circuit, which is electrically connected to the signal line; optionally, the signal line is used to transmit a clock signal or a start signal. According to the display panel provided in this embodiment, the shielding portion is used to shield the electrostatic signal interference between the touch line and the signal line in the substrate; preferably, the touch line includes a main touch line, which is located on the side of the shielding portion away from the shielding layer, and the extension direction of the signal line and the main touch line is the same; optionally, the orthographic projection of the signal line on the substrate is located within the orthographic projection range of the main touch line on the substrate; optionally, at least one signal line includes multiple signal lines, and the display panel has a display area and a frame area, and the multiple signal lines are arranged sequentially in the direction from the display area to the frame area.

[0011] In combination with the first aspect, in some possible implementations, the display panel further includes an organic layer located between the driving circuit layer and the shielding layer; and / or the display panel further includes an encapsulation structure layer located between the shielding layer and the shielding portion; optionally, a portion of the organic layer is exposed to the through hole; optionally, the organic layer includes a planarization layer. According to the display panel provided in this embodiment, by setting a portion of the organic layer to be exposed to the through hole, water oxygen in the organic layer can be better released.

[0012] In combination with the first aspect, in some possible implementations, the display panel has a display area, and the display panel also includes a sub-pixel located on the substrate and in the display area; the sub-pixel includes a first electrode, and the first electrode and the shielding layer are in the same layer; optionally, the sub-pixel also includes a second electrode, which is located on the side of the first electrode away from the substrate, and the second electrode is electrically connected to the shielding layer.

[0013] A second aspect of the present application provides a display device, comprising a display panel provided by any of the above embodiments.

[0014] According to the display panel and display device provided by the embodiments of the present application, a shielding portion covering the through hole is provided above the through hole of the shielding layer to avoid signal interference between the touch lines on both sides of the through hole and the array lines in the substrate, thereby improving the touch sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the top structure of a display panel provided in one embodiment of the present application.

[0016] Figure 2 The first embodiment of the present application provides Figure 1 A first enlarged view of a local area Q of the display panel is shown.

[0017] Figure 3 The first embodiment of the present application provides Figure 1 A second enlarged view of a local area Q of the display panel is shown.

[0018] Figure 4 The first embodiment of the present application provides Figure 1 A third enlarged view of a partial area of ​​the display panel is shown.

[0019] Figure 5 The first embodiment of the present application provides Figure 1 The display panel shown is along Figure 4 Schematic diagram of the cross-sectional structure of line A1A2.

[0020] Figure 6 The first embodiment of the present application provides Figure 1 The display panel shown is along Figure 4 Schematic diagram of the cross-sectional structure of line A3A4.

[0021] Figure 7 An embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the display panel along line A5A6 is shown.

[0022] Figure 8 The second embodiment of the present application provides Figure 1 A fourth enlarged view of a local area Q of the display panel is shown.

[0023] Fig. 9 The second embodiment of the present application provides Figure 1 A fifth enlarged view of a local area Q of the display panel is shown.

[0024] Fig.10 A schematic diagram of the structure of a display device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0025] As mentioned in the background art, the touch sensitivity of the touch display screen in the related art is low. One of the reasons for this problem is that the signals in the touch wiring and the array wiring interfere with each other.

[0026] In order to solve the problem of low touch sensitivity of a touch display screen, the present application provides a display panel and a display device. At the through holes of the shielding layer, that is, the location where there is signal interference between the touch wiring and the array wiring in the substrate, a shielding part is arranged to cover the through holes, so as to avoid signal interference between the touch wiring on both sides of the through holes and the array wiring in the substrate, thereby improving the touch sensitivity.

[0027] The words "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present application.

[0028] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is understood that when a structure is referred to as being "on or under" another structure, the structure may be directly on or under the other structure, or there may be intermediate structures. The same reference numerals always indicate the same structure. The structures mentioned herein include any of a film layer, an element, a device, a component, and an assembly.

[0029] When a structure is referred to as being “connected” to another structure, the structure may be directly connected to the other structure or indirectly connected to the other structure with one or more intervening structures interposed therebetween.

[0030] Figure 1 A schematic diagram of the top structure of a display panel provided in one embodiment of the present application. Figure 2 The first embodiment of the present application provides Figure 1 A first enlarged view of a local area Q of the display panel is shown. Figure 3 The first embodiment of the present application provides Figure 1 A second enlarged view of a local area Q of the display panel is shown. Figure 4 The first embodiment of the present application provides Figure 1 A third enlarged view of a partial area of ​​the display panel is shown. Figure 5 The first embodiment of the present application provides Figure 1 The display panel shown is along Figure 4 Schematic diagram of the cross-sectional structure of line A1A2. Figure 6 The first embodiment of the present application provides Figure 1 The display panel shown is along Figure 4 Schematic diagram of the cross-sectional structure of line A3A4. Figure 2 , Figure 3 and Figure 4 Partial film layer stacking structures of local area Q are shown respectively. Figure 5 and Figure 6 Shows Figure 1 The stacked structure of the display panel is shown.

[0031] like Figure 1 As shown, the display panel has a display area AA and a frame area NA. Figure 2 , Figure 3 and Figure 4 The partial area Q shown shows the top view structure of a portion of the border area NA. The border area NA can be arranged around the display area AA.

[0032] Combination Figure 1-Figure 6 As shown, the display panel includes a substrate 11, a shielding layer 12, at least one shielding portion 13 and at least one touch line 14. The shielding layer 12 is located on the substrate 11, and the shielding layer 12 includes at least one through hole H. The orthographic projection of the shielding portion 13 on the substrate 11 covers the orthographic projection of the through hole H on the substrate 11. At least part of the touch line 14 is located on a side of the shielding portion 13 away from the shielding layer 12.

[0033] The substrate 11 may be a base substrate or an array substrate. The array substrate includes a base substrate, and a pixel circuit and various array signal lines arranged on the base substrate. In some embodiments, the substrate 11 may be a rigid substrate, for example, including a glass-based substrate. In some embodiments, the substrate 11 may include an organic resin material such as epoxy resin, triazine, silicone resin or polyimide. For example, the substrate 11 may be a FR4 type printed circuit board (PCB), or may be a flexible PCB that is easily deformed. In some embodiments, the substrate 11 may include a ceramic material such as silicon nitride, aluminum nitride or aluminum oxide, or may include a metal or a metal compound. For example, the substrate 11 may be a metal core printed circuit board (MCPCB) or a metal-base copper-clad laminate (MCCL).

[0034] In some embodiments, the substrate 11 may be a flexible substrate, for example, including an organic material such as polyimide.

[0035] The display panel may include a pixel circuit. The pixel circuit is located in the display area AA. The pixel circuit may be a 7TC pixel circuit, an 8T1C pixel circuit, etc.

[0036] The array signal line is electrically connected to the pixel circuit and is used to provide various electrical signals to the pixel circuit. The array signal line includes a variety of signal lines located in the display area AA and a variety of signal lines located in the frame area NA. Exemplarily, the various signal lines located in the display area AA include at least one of a scan signal line, a data signal line, a power signal line, a reference voltage signal line, and a light-emitting control signal line. The various signal lines located in the frame area NA include signal lines 171 such as a clock signal line.

[0037] A through hole H is provided on the shielding layer 12 to meet the process requirements. For example, it can be used to release water vapor in the organic layer below the shielding layer 12. In this case, signal interference will occur between the array signal lines located at the projection position of the through hole H in the substrate 11, such as the signal line 171 located in the border area NA and the touch line 14. Based on this, a shielding portion 13 covering the through hole H is provided on the side of the shielding layer 12 facing away from the substrate 11, and the orthographic projection of the shielding portion 13 on the substrate 11 covers the orthographic projection of the through hole H on the substrate 11. In this way, the shielding portion 13 can be used to shield the signal interference between the touch lines 14 on both sides of the through hole H and the array signal lines in the substrate 11, thereby improving the touch sensitivity.

[0038] In one embodiment, in combination Figure 4 and Figure 6 As shown, the touch trace 14 includes an electrically connected main touch trace 141 and at least one auxiliary touch trace 142. The main touch trace 141 is located on the side of the shielding portion 13 away from the substrate 11, and the auxiliary touch trace 142 is on the same layer as the shielding portion 13. Exemplarily, the main touch trace 141 is electrically connected to the auxiliary touch trace 142 through a via 140.

[0039] The touch line 14 connects the touch chip and the touch electrode of the display area, and is used to transmit the touch signal collected by the touch electrode to the touch chip. By setting the touch line 14 as an electrically connected main touch line 141 and an auxiliary touch line 142, and the auxiliary touch line 142 and the shielding part 13 are in the same layer, the impedance of the touch line 14 is reduced without adding an additional metal layer, thereby further improving the touch sensitivity.

[0040] In one embodiment, Figure 3 and Figure 4 As shown, at least one through hole H includes a plurality of through holes H, and the plurality of through holes H are arranged in an array. The shape of the through hole H can be a circle, a regular polygon, etc. Exemplarily, the opening area and shape of the plurality of through holes are the same. In this way, on the one hand, the water vapor release effect is better; on the other hand, it is convenient to wire the shielding part 13, that is, the shielding part 13 can be arranged according to the rows or columns of the through holes, and the shielding part 13 is a straight line without turning or avoiding; on the other hand, the shielding part 13 is evenly distributed, the shielding effect is good, and the display uniformity is little affected.

[0041] In one embodiment, Figure 3 and Figure 4 As shown, the display panel includes a plurality of shielding parts 13, and the orthographic projection of each shielding part 13 on the substrate 11 covers the orthographic projection of a row of through holes H on the substrate 11. In this arrangement, one shielding part 13 corresponds to a row of through holes H, which simplifies wiring and is easy to implement.

[0042] In one embodiment, Figure 3 and Figure 4 As shown, a row of through holes H includes at least two through holes H, and the row direction is parallel to the extension direction of the shielding portion 13 .

[0043] In one embodiment, Figure 3 and Figure 4 As shown, the shielding portion 13 extends from the display area AA to the frame area NA. The auxiliary touch wiring 142 is located between adjacent shielding portions 13.

[0044] For ease of description, the direction from the display area AA to the frame area NA is denoted as the first direction x, and the direction perpendicular to the first direction x is denoted as the second direction y. Exemplarily, the shielding portion 13 extends along the first direction x, and the auxiliary touch trace 142 is located between adjacent shielding portions 13. In this way, the space between adjacent shielding portions 13 can be fully utilized without occupying the width of the frame area NA, which is conducive to the realization of a narrow frame.

[0045] In one embodiment, Figure 3 and Figure 4 As shown, a plurality of auxiliary touch lines 142 are arranged between adjacent shielding parts 13, and the plurality of auxiliary touch lines 142 between adjacent shielding parts 13 are arranged sequentially along the extension direction of the shielding parts 13. Exemplarily, the shielding parts 13 extend along the first direction x, the auxiliary touch lines 142 extend along the second direction y, and the plurality of auxiliary touch lines 142 between adjacent shielding parts 13 are arranged along the first direction x. For example, the shielding part 13 extends in a direction from the display area AA to the frame area NA.

[0046] In one embodiment, Figure 3 and Figure 4As shown, at least one touch line includes multiple touch lines, and the auxiliary touch lines 142 of the multiple touch lines 14 are arranged in an array. Exemplarily, the touch line 14 includes a column of auxiliary touch lines 142, and the main touch line 141 is electrically connected to a column of auxiliary touch lines 142, and the column direction y is parallel to the extension direction of the main touch line 141. The advantage of this is that the touch line 14, including the auxiliary touch line 142 and the main touch line 141, is more regular, so that the impedance distribution is regular. Exemplarily, the main touch line 141 extends along the second direction y. The main touch line 141 is electrically connected to a column of auxiliary touch lines 142 linearly arranged in the second direction y.

[0047] In one embodiment, Figure 4 As shown, the orthographic projection of the auxiliary touch trace 142 on the substrate 11 and the orthographic projection of the main touch trace 141 electrically connected to the auxiliary touch trace 142 on the substrate 11 at least partially overlap. Exemplarily, the orthographic projection of the auxiliary touch trace 142 on the substrate 11 is located within the orthographic projection range of the main touch trace 141 electrically connected to the auxiliary touch trace 142 on the substrate 11. In this way, a conductive via 140 can be provided at the overlapping position to electrically connect the auxiliary touch trace 142 and the main touch trace 141, which is easy to implement.

[0048] In one embodiment, Figure 3 and Figure 4 As shown, the extension direction of the main body touch wiring 141 intersects with the extension direction of the shielding portion 13 .

[0049] Exemplarily, the conductive vias 140 corresponding to each main touch trace 141 are arranged at equal intervals in the second direction y, or the conductive vias 140 corresponding to each auxiliary touch trace 142 are arranged at equal intervals in the second direction y.

[0050] In one embodiment, Figure 3 and Figure 4 As shown, the display panel also includes a connecting portion 16, and the connecting portion 16 is electrically connected to the shielding portion 13. The connecting portion 16 and the shielding portion 13 may be in the same layer or in different layers. Exemplarily, the connecting portion 16 and the shielding portion 13 are in the same layer, and the connecting portion 16 extends along the second direction y. The connecting portion 16 is located on the side of the shielding portion 13 away from the display area AA. One end of each shielding portion 13 away from the display area AA is connected to the connecting portion 16. Exemplarily, the connecting portion 16 and the shielding portion 13 are integrally formed. For example, the connecting portion 16 is electrically connected to multiple shielding portions 13.

[0051] Exemplarily, the shielding part 13 is connected to a DC voltage or grounded. Thus, by setting the shielding part 13 to be connected to a DC voltage or grounded, the shielding effect of the shielding part 13 can be improved.

[0052] In one embodiment, Figure 3 and Figure 4 As shown, the extension direction of the connection portion 16 intersects with the extension direction of the shielding portion 13. For example, the extension direction of the connection portion 16 is perpendicular to the extension direction of the shielding portion 13. Exemplarily, the connection portion 16 is electrically connected to a plurality of shielding portions 13 arranged along the extension direction of the connection portion 16. Exemplarily, in the frame area NA, the connection portion 16 is located on the side of the shielding portion 13 away from the display area AA. The frame area NA may be a non-display area.

[0053] In one embodiment, in combination Figure 5 and Figure 6 As shown, the display panel further includes a driving circuit layer 17 located between the substrate 11 and the shielding layer 12 , and the shielding portion 13 is located on a side of the shielding layer 12 away from the substrate 11 .

[0054] Exemplarily, the driving circuit layer 17 includes at least one signal trace 171, and the signal trace 171 is located between the substrate 11 and the shielding layer 12. The orthographic projection of at least part of the signal trace 171 on the substrate 11 overlaps with the orthographic projection of the through hole H on the substrate 11.

[0055] For example, combined with Figure 4 , Figure 5 and Figure 6 As shown, the signal line 171 and the main body touch line 141 both extend along the second direction y, and the plurality of signal lines 171 are arranged along the first direction x. The plurality of signal lines 171 include a first signal line 1711 and a second signal line 1712. The orthographic projection of the first signal line 1711 on the substrate 11 overlaps with the orthographic projection of the through hole H on the substrate 11. The orthographic projection of the second signal line 1712 on the substrate 11 does not overlap with the orthographic projection of the through hole H on the substrate 11.

[0056] In one embodiment, in combination Figure 4 , Figure 5 and Figure 6 As shown, the drive circuit layer 17 includes a scan drive circuit 172, and the scan drive circuit 172 is electrically connected to the signal line 171. Exemplarily, the signal line 171 is used to transmit a clock signal or a start signal. The scan drive circuit 172 may include a plurality of cascaded shift registers. The input end of the first stage shift register is connected to the start signal. In two adjacent stages of shift registers, the output end of the previous stage shift register is electrically connected to the input end of the next stage shift register.

[0057] In one embodiment, in combination Figure 4 , Figure 5 and Figure 6 As shown, the main body touch control trace 141 is located on a side of the shielding portion 13 away from the shielding layer 12 , for example, the signal trace 171 and the main body touch control trace 141 extend in the same direction.

[0058] In one embodiment, Figure 4 As shown, the orthographic projection of the signal wiring 171 on the substrate 11 is located within the orthographic projection range of the main body touch wiring 141 on the substrate 11 .

[0059] In one embodiment, Figure 4 As shown, at least one signal wiring 171 includes a plurality of signal wirings 171 , and in a direction from the display area to the frame area, for example, in a first direction x, the plurality of signal wirings 171 are sequentially arranged.

[0060] Exemplarily, every two first signal lines 1711 constitute a first scan drive signal line group, and every two second signal lines 1712 constitute a second signal line group. In the first direction x, the first signal line group and the second signal line group are arranged alternately, that is, the arrangement of the plurality of signal lines 171 in the first direction x is the first first signal line 1711, the second first signal line 1711, the first second signal line 1712, the second second signal line 1712, the third first signal line 1711, the fourth first signal line 1711, the third second signal line 1712, the fourth second signal line 1712....., and so on.

[0061] In one embodiment, in combination Figure 5 and Figure 6 As shown, the display panel further includes an organic layer 18, which is located between the driving circuit layer 17 and the shielding layer 12. Exemplarily, part of the organic layer 18 is exposed to the through hole H. In this way, the through hole H is in contact with the organic layer 18 to better release the water vapor in the organic layer 18. The number of the organic layer 18 can be one or more, which can be reasonably set according to actual needs. For example, Figure 5 and Figure 6 In the display panel shown, the number of organic layers 18 between the driving circuit layer 17 and the shielding layer 12 is 3. Exemplarily, the organic layer 18 includes a planarization layer. The organic layer 18 may include an organic insulating layer.

[0062] In one embodiment, Figure 2 As shown, the display panel further includes a dam 40, which is located on the substrate 11 and on the side of the shielding layer 12 away from the display area AA. The dam 40 surrounds the display area AA. The number of the dams 40 can be reasonably set according to actual needs.

[0063] Figure 7 An embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the display panel along the A5A6 line is shown. Figure 1 , Figure 2 and Figure 7As shown, in this embodiment, the display panel has a display area. The display panel may also include a sub-pixel 19, which is located on the substrate 11 and in the display area AA. The sub-pixel 19 includes a first electrode 191, and the first electrode 191 and the shielding layer 12 are in the same layer. The sub-pixel 19 can be an organic light-emitting diode (OLED), a micro light-emitting diode (Micro LED), a quantum dot light-emitting diode (QLED), etc. The sub-pixel 19 can be a light-emitting device of various colors, such as a red light-emitting device, a green light-emitting device, a blue light-emitting device, etc.

[0064] The sub-pixel 19 also includes a second electrode 192, which is located on the side of the first electrode 191 away from the substrate 11, and the second electrode 192 is electrically connected to the shielding layer 12. Exemplarily, the first electrode 191 is an anode and the second electrode 192 is a cathode. In this case, the shielding layer 12 is on the same layer as the anode of the sub-pixel 19 and is electrically connected to the cathode, that is, the shielding layer 12 used to transmit the low-voltage power signal is on the same layer as the anode. Accordingly, the shielding layer 12 is multiplexed as the low-voltage power signal routing Elvss.

[0065] The sub-pixel 19 further includes a light-emitting layer 193, which is located between the first electrode 191 and the second electrode 192. Exemplarily, the sub-pixel 19 may further include at least one of a hole injection layer, a hole transport layer, and an electron blocking layer located between the anode and the light-emitting layer 193, and at least one of an electron injection layer, an electron transport layer, and a hole blocking layer located between the cathode and the light-emitting layer 193.

[0066] In one embodiment, Figure 7 As shown, the display panel also includes a touch electrode layer 20, and the touch electrode layer 20 includes a first conductive layer 21 and a second conductive layer 22. The first conductive layer 21 is in the same layer as the shielding portion 13, and at least a portion of the touch trace 14 is in the same layer as the second conductive layer 22. For example, the second conductive layer 22 is in the same layer as the main touch trace 141. The first conductive layer 21 is in the same layer as the auxiliary touch trace 142. Exemplarily, at least a portion of the touch electrode layer 20 is located in the display area AA, the touch trace 14 is located in the frame area NA, and the shielding layer 12 is located in the frame area NA. Exemplarily, the shielding layer 12 includes a metal layer, and the first conductive layer 21 and the second conductive layer 22 are metal layers. An insulating layer may be provided between the first conductive layer 21 and the second conductive layer 22.

[0067] In one embodiment, Figure 7As shown, the display panel may further include an encapsulation structure layer 30, which is located between the shielding layer 12 and the shielding portion 13. Exemplarily, the encapsulation structure layer 30 includes a first encapsulation layer 31, a second encapsulation layer 32, and a third encapsulation layer 33 which are stacked in sequence in a direction gradually away from the substrate 11. Among them, the first encapsulation layer 31 is only located in the display area AA. For example, the first encapsulation layer 31 includes a plurality of encapsulation parts, such as a one-to-one correspondence between the encapsulation parts and the sub-pixels 19. The second encapsulation layer 32 extends from the display area AA to the frame area NA. The first encapsulation layer 31 and the third encapsulation layer 33 may be inorganic encapsulation layers, and the second encapsulation layer 32 may be an organic encapsulation layer.

[0068] The display panel also includes a touch barrier layer TP_bf, a touch insulating layer TP_in, and a touch protection layer TP_oc. In the direction gradually away from the substrate 11, the packaging structure layer, the touch barrier layer TP_bf, the shielding part 13 (the shielding part 13 and the auxiliary touch wiring 142 can be arranged in the same layer), the touch insulating layer TP_in, the main touch wiring 141, and the touch protection layer TP_oc are stacked in sequence. Multiple structures arranged in the same layer can be obtained by patterning the same film layer to simplify the process.

[0069] Figure 8 The second embodiment of the present application provides Figure 1 A fourth enlarged view of a local area Q of the display panel is shown. Fig. 9 The second embodiment of the present application provides Figure 1 A fifth enlarged view of a partial area Q of the display panel is shown. Figure 8 and Fig. 9 As shown, the difference between the display panel provided in this embodiment and the display panel provided in the first embodiment is that in this embodiment, the touch line 14 does not include the auxiliary touch line 142, but only includes the main touch line 141. Accordingly, according to the display panel provided in this embodiment, at the through hole of the power line, that is, the position where the touch line and the array line in the substrate have signal interference, a shielding line is arranged to cover the through hole, so as to avoid signal interference between the touch lines on both sides of the through hole and the array lines in the substrate, thereby improving the touch sensitivity.

[0070] The present application also provides a display device. Fig.10 This is a schematic diagram of the structure of a display device provided in one embodiment of the present application. Fig.10 As shown, the display device 900 includes the display panel provided by any embodiment of the present application.

[0071] The display device 900 is a product with an image display function. For example, the display device 900 can be used to display static images, such as pictures or photos. The display device 900 can also be used to display dynamic images, such as videos.

[0072] The display device 900 may be a laptop computer, a mobile phone, a handheld or portable computer, a camera, a camcorder, a vehicle-mounted smart central control screen, a calculator, a smart watch, a GPS navigator, an electronic photo, an electronic billboard or sign, a projector, etc.

[0073] In addition, the display device 900 may also have functions such as taking pictures, recording videos, fingerprint recognition, and face recognition. Accordingly, the display device 900 also includes at least one functional module for implementing the above functions, such as an under-screen camera, an under-screen fingerprint recognition sensor, and the like.

[0074] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0075] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; A shielding layer, located on the substrate, wherein the shielding layer comprises at least one through hole; at least one shielding portion, the orthographic projection of the shielding portion on the substrate covering the orthographic projection of the through hole on the substrate; and At least one touch control wiring, at least a portion of which is located on a side of the shielding portion away from the shielding layer.

2. The display panel according to claim 1, characterized in that: The touch wiring comprises an electrically connected main touch wiring and at least one auxiliary touch wiring, the main touch wiring is located on a side of the shielding portion away from the shielding layer, and the auxiliary touch wiring is in the same layer as the shielding portion; And / or, the display panel further includes a touch electrode layer, the touch electrode layer includes a first conductive layer and a second conductive layer, the first conductive layer is in the same layer as the shielding portion, and at least a portion of the touch wiring is in the same layer as the second conductive layer; Preferably, the second conductive layer is in the same layer as the main body touch wiring; The first conductive layer is in the same layer as the auxiliary touch wiring; Preferably, the display panel has a display area and a frame area, at least a portion of the touch electrode layer is located in the display area, the touch wiring is located in the frame area, and the shielding layer is located in the frame area; Preferably, the main touch control wiring is electrically connected to the auxiliary touch control wiring through a via hole; Preferably, the shielding layer comprises a metal layer, and the first conductive layer and the second conductive layer are metal layers.

3. The display panel according to claim 1, characterized in that: The at least one through hole comprises a plurality of through holes, and the plurality of through holes are arranged in an array; Preferably, the at least one shielding portion comprises a plurality of shielding portions, and the orthographic projection of each shielding portion on the substrate covers the orthographic projection of a row of through holes on the substrate; Preferably, a row of the through holes includes at least two through holes, and a row direction is parallel to an extension direction of the shielding portion.

4. The display panel according to claim 2, characterized in that: The at least one shielding portion includes a plurality of shielding portions, and the auxiliary touch wiring is located between adjacent shielding portions; Preferably, a plurality of auxiliary touch lines are arranged between adjacent shielding parts, and the plurality of auxiliary touch lines between adjacent shielding parts are sequentially arranged along the extension direction of the shielding parts; Preferably, the display panel has a display area and a frame area; the shielding portion extends in a direction from the display area to the frame area.

5. The display panel according to claim 2, characterized in that: At least one of the touch lines includes a plurality of touch lines, and the auxiliary touch lines of the plurality of touch lines are arranged in an array; Preferably, the touch wiring includes a column of the auxiliary touch wiring, the main touch wiring is electrically connected to the column of the auxiliary touch wiring, and the column direction is parallel to the extension direction of the main touch wiring; Preferably, an orthographic projection of the auxiliary touch line on the substrate and an orthographic projection of the main touch line electrically connected to the auxiliary touch line on the substrate at least partially overlap; Preferably, an extension direction of the main body touch wiring intersects with an extension direction of the shielding portion.

6. The display panel according to claim 1, characterized in that: Also includes a connecting portion electrically connected to the shielding portion; Preferably, the shielding portion is connected to a DC voltage or is grounded; Preferably, the connecting portion and the shielding portion are in the same layer; Preferably, the connecting portion is electrically connected to a plurality of the shielding portions; Preferably, the extending direction of the connecting portion intersects with the extending direction of the shielding portion; the connecting portion is electrically connected to a plurality of shielding portions arranged along the extending direction of the connecting portion; Preferably, the display panel has a display area and a frame area, and in the frame area, the connecting portion is located at a side of the shielding portion away from the display area.

7. The display panel according to claim 1, characterized in that: It also includes a driving circuit layer, which is located between the substrate and the shielding layer, and the shielding portion is located on a side of the shielding layer away from the substrate; Preferably, the driving circuit layer includes at least one signal trace, which is located between the substrate and the shielding layer, and at least a portion of the orthographic projection of the signal trace on the substrate overlaps with the orthographic projection of the through hole on the substrate; Preferably, the driving circuit layer includes a scanning driving circuit electrically connected to the signal wiring; Preferably, the signal routing is used to transmit a clock signal or a start signal; Preferably, the touch control wiring includes a main body touch control wiring, which is located on a side of the shielding portion away from the shielding layer, and the signal wiring and the main body touch control wiring have the same extension direction; Preferably, the orthographic projection of the signal wiring on the substrate is located within the orthographic projection range of the main body touch wiring on the substrate; Preferably, the at least one signal routing line includes a plurality of signal routing lines, the display panel has a display area and a frame area, and the plurality of signal routing lines are sequentially arranged in a direction from the display area to the frame area.

8. The display panel according to claim 7, characterized in that: The display panel further comprises an organic layer located between the driving circuit layer and the shielding layer; And / or, the display panel further includes a packaging structure layer located between the shielding layer and the shielding portion; Preferably, part of the organic layer is exposed to the through hole; Preferably, the organic layer includes a planarization layer.

9. The display panel according to claim 1, characterized in that: The display panel has a display area, and the display panel further includes a sub-pixel located on the substrate and located in the display area; the sub-pixel includes a first electrode, and the first electrode and the shielding layer are in the same layer; Preferably, the sub-pixel further includes a second electrode located on a side of the first electrode away from the substrate, and the second electrode is electrically connected to the shielding layer.

10. A display device, characterized in that: A display panel comprising any one of claims 1-9.

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