CN115715122A - Display panel and display device - Google Patents

Abstract

The present application provides a display panel and a display device. The display panel includes a substrate, a display layer and a touch function layer. The substrate has a pixel area and a non-pixel area. The display layer is located on one side of the substrate. The display layer has sub-pixels in the pixel area. The touch function layer is located on the side of the display layer away from the substrate. The touch function layer includes touch electrodes. The touch electrodes include a plurality of touch electrode traces forming a plurality of metal lattice structures. At least one of the plurality of metal lattices The orthographic projection of the metal grid on the display layer surrounds at least two sub-pixels. In this way, compared with the prior art, the orthographic projection of the metal grid on the display layer surrounds one sub-pixel. In this application, the sub-pixels surrounded by the orthographic projection of the metal grid on the display layer The number of pixels increases, the number of metal grids in the touch electrode decreases, the density of the touch electrode wiring decreases, and the interference received by the touch function layer will also become smaller, thereby avoiding the SNR of the display panel exceeding the specification and improving the display panel. the quality of.

Description

Display panel and display device

technical field

The present application relates to the display field, in particular to a display panel and a display device.

Background technique

Organic light-emitting diode (Organic Light-Emitting Diode, OLED) devices have been applied in display fields such as mobile phones and tablets. With the improvement of the integration level of display panels, TPOT (Touch Panel on TFE ) process has been widely used.

With the development of display technology, the resolution of the display panel is gradually increasing. The improvement of resolution means that the spacing between pixels becomes smaller. Correspondingly, the spacing between thin-film transistors (TFT) located below the pixels The TFT circuit is also smaller, the TFT circuit traces are denser, and the electric field changes more frequently, which easily causes interference to the touch function layer above the pixel, and even causes the signal-to-noise ratio (SNR) of the display panel to exceed the specification. , reducing the quality of the display panel.

Contents of the invention

In view of this, the purpose of the present application is to provide a display panel and a display device, which can reduce interference to the touch function layer and improve the quality of the display panel. The specific plan is as follows:

In a first aspect, the present application provides a display panel, including:

a substrate having a pixel area and a non-pixel area;

a display layer located on one side of the substrate, the display layer having sub-pixels in the pixel region;

The touch function layer is located on the side of the display layer away from the substrate, the touch function layer includes touch electrodes, and the touch electrodes include a plurality of touch electrode lines forming a plurality of metal lattice structures, The orthographic projection of at least one metal grid in the plurality of metal grids on the display layer surrounds at least two sub-pixels.

In a second aspect, the embodiment of the present application further provides a display device, including the aforementioned display panel.

Embodiments of the present application provide a display panel and a display device. The display panel includes a substrate, a display layer, and a touch function layer. The substrate has a pixel area and a non-pixel area. The display layer is located on one side of the substrate. The display layer has a The sub-pixel, the touch function layer, is located on the side of the display layer away from the substrate. The touch function layer includes touch electrodes, and the touch electrodes include a plurality of touch electrode lines forming a plurality of metal lattice structures. The orthographic projection of at least one metal grid on the display layer surrounds at least two sub-pixels. In this way, compared with the prior art that the orthographic projection of the metal grid on the display layer surrounds one sub-pixel, the orthographic projection of the metal grid on the display layer in this application The number of surrounded sub-pixels increases, the number of metal grids in the touch electrodes decreases, the density of touch electrode traces decreases, and the interference received by the touch function layer will also become smaller, thereby avoiding the SNR of the display panel exceeding the specification. Improve the quality of the display panel.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some embodiments of the present application, those skilled in the art can also obtain other drawings based on these drawings without creative effort.

FIG. 1 shows a schematic structural diagram of a display panel provided by an embodiment of the present application;

Fig. 2 shows a top view of a display panel provided by an embodiment of the present application;

FIG. 3 shows a top view of another display panel provided for the embodiment of the present application;

Fig. 4 shows a top view of another display panel provided for the embodiment of the present application;

Fig. 5 shows a top view of another display panel provided for the embodiment of the present application;

FIG. 6 shows a top view of another display panel provided for the embodiment of the present application;

FIG. 7 shows a top view of another display panel provided for the embodiment of the present application;

Fig. 8 shows a schematic layout diagram of a touch electrode provided by the embodiment of the present application;

FIG. 9 shows a cross-sectional view of the display panel in the AA direction;

Fig. 10 shows a sectional view of the display panel in the direction of BB;

Fig. 11 shows a top view of another display panel provided for the embodiment of the present application;

FIG. 12 shows a schematic structural diagram of a display device provided by an embodiment of the present application.

Detailed ways

In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings.

In the following description, a lot of specific details are set forth in order to fully understand the application, but the application can also be implemented in other ways different from those described here, and those skilled in the art can do it without violating the content of the application. By analogy, the present application is therefore not limited by the specific embodiments disclosed below.

Secondly, the present application is described in detail in combination with schematic diagrams. When describing the embodiments of the present application in detail, for the convenience of explanation, the cross-sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not be limited here. The protection scope of this application. In addition, the three-dimensional space dimensions of length, width and depth should be included in actual production.

For example, in WQHD technology, the resolution of the display panel is 3440×1440. Compared with the FHD resolution of 1920×1080, the spacing between pixels is significantly smaller. Correspondingly, the spacing between TFTs is also smaller. TFT The circuit traces are denser and the electric field changes more frequently. The touch electrodes in the touch function layer above the thin film encapsulation layer include multiple touch electrode traces. The density of touch electrode traces is relatively high, which causes the touch function layer to In addition, the increase in resolution leads to denser openings in the pixel definition layer for arranging pixels, and the light interference on the touch function layer becomes larger, which may lead to the SNR violation of the display panel.

Based on the above technical problems, embodiments of the present application provide a display panel and a display device. The display panel includes a substrate, a display layer and a touch function layer. The substrate has a pixel area and a non-pixel area. The display layer is located on one side of the substrate. The layer has sub-pixels in the pixel area, the touch function layer is located on the side of the display layer away from the substrate, the touch function layer includes touch electrodes, and the touch electrodes include a plurality of touch electrode lines forming a plurality of metal lattice structures, The orthographic projection of at least one of the metal grids on the display layer surrounds at least two sub-pixels. In this way, compared with the prior art that the orthographic projection of the metal grid on the display layer surrounds one sub-pixel, the metal grid in this application The number of sub-pixels surrounded by the orthographic projection of the display layer increases, the number of metal grids in the touch electrode decreases, the density of the touch electrode traces decreases, and the interference received by the touch function layer will also become smaller, thereby avoiding the display panel. The SNR is exceeded, improving the quality of the display panel.

For ease of understanding, a display panel and a display device provided in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , it is a schematic structural diagram of a display panel provided by an embodiment of the present application. The display panel includes a substrate 101, a display layer 102 and a touch function layer 103. The substrate has a pixel area and a non-pixel area. The display layer 102 is located on On one side of the substrate 101, the display layer 102 has a sub-pixel 104 in the pixel area, and the sub-pixel can be a red (Red, R) sub-pixel, a green (Green, G) sub-pixel or a blue (Blue, B) sub-pixel, and the sub-pixel It may include a pixel definition layer 1021 and a light-emitting layer 1022 located in the pixel area, and different materials of the light-emitting layer may be used to emit light of different colors, so that the sub-pixels to which the light-emitting layer belongs are sub-pixels of different colors.

The touch function layer 103 is located on the side of the display layer 102 away from the substrate 101. The touch function layer 103 can form capacitance with the touch body (such as a finger) to realize the touch function. The touch function layer 103 can include a plurality of touch electrodes 105 , when the touch structure adopts the self-capacitive touch principle, the touch electrode can be used as a sensor.

There may be a flat layer 108 between the display layer 102 and the touch function layer 103, the flat layer 108 has a flattening effect, and the material of the flat layer may be acrylic, polyimide (PI) or benzocyclobutene (BCB) and other organic materials.

Referring to FIG. 2 , it is a top view of a display panel provided by an embodiment of the present application. The sub-pixels include three sub-pixels of R, G, and B, and a plurality of sub-pixels are arranged in an array. The touch electrodes include a plurality of metal grids 107 structures. The plurality of touch electrode wires 106, the orthographic projection of at least one metal grid in the plurality of metal grids on the display layer surrounds at least two sub-pixels. For example, the metal grid 107 surrounds two sub-pixels, which are respectively an R sub-pixel and a G sub-pixel, and the metal grid may also surround a B sub-pixel and a G sub-pixel.

In this way, compared with the orthographic projection of the metal grid on the display layer in the prior art enclosing one sub-pixel, the number of sub-pixels surrounded by the orthographic projection of the metal grid on the display layer in the present application increases, and the number of metal grids in the touch electrode decreases. , the density of the touch electrode wiring is reduced, and the interference received by the touch function layer will also be reduced, so as to avoid the SNR of the display panel from exceeding the standard and improve the quality of the display panel.

In the embodiment of the present application, the sub-pixels may be distributed in an array along the first direction and the second direction, the second direction forms an angle with the first direction, for example, the second direction may be perpendicular to the first direction, and the sub-pixels in the display panel Arrangement As shown in FIG. 2 , the first direction may be the direction from the lower left corner to the upper right corner of the display panel, and the second direction may be the direction from the upper left corner to the lower right corner of the display panel. The multiple touch electrode traces include multiple first touch electrode traces 1061 along the first direction, and multiple second touch electrode traces 1062 along the second direction. Referring to FIG. 2, it includes a plurality of first touch electrode lines 1061 and a plurality of second touch electrode lines 1062. The metal grid 1071 is composed of two first touch electrode lines 1061 and two second touch electrode lines. The electrode traces 1062 constitute.

In this embodiment of the application, the shape of the metal lattice formed by multiple touch electrode traces can be a rectangle, a cross, or a rectangle with rounded corners, which can be set according to actual needs, and no specific limitation is made here. . Specifically, the center of the sub-pixel surrounded by the orthographic projection of at least one of the metal grids on the display layer may be located on the target line. For example, if the orthographic projection of the metal grid on the display layer surrounds three sub-pixels, then the three sub-pixels The centers of the pixels can be located on a straight line. In this way, the shape of the metal lattice surrounding the three sub-pixels is rectangular, which is convenient for manufacturing and further reduces interference to the touch function layer.

Specifically, the extending direction of the target straight line may be along the first direction, then the extending direction of the metal lattice is the first direction, further, each of the plurality of metal lattices is in the center of the sub-pixel surrounded by the orthographic projection of the display layer The wiring may be parallel to the first direction, so as to facilitate the process operation. Referring to FIG. 2 , the extending direction of all metal grids is along the first direction, and at this time, the length of the first touch electrode trace 1061 along the first direction is longer than that of the second touch electrode trace 1062 along the second direction. length.

Specifically, the extension direction of the target line can also be along the second direction, which can be selected according to the circuit layout. Referring to FIG. 3 , it is a top view of another display panel provided by the embodiment of the present application. In the second direction, the length of the second touch electrode wiring 1062 is greater than the length of the first touch electrode wiring 1061 .

In the embodiment of the present application, the shape of the metal grid can be an irregular shape, such as a cross shape or an L shape, so as to increase the diversity of metal electrode wiring layouts and reduce interference to the touch function layer. Specifically, the orthographic projection of at least one metal grid in the plurality of metal grids on the display layer can surround at least three sub-pixels, the at least three sub-pixels include a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel The line connecting the center of the second sub-pixel and the center of the second sub-pixel may be in the first direction, and the line connecting the center of the second sub-pixel and the center of the third sub-pixel may be in the second direction.

Referring to FIG. 4 , which is a top view of another display panel provided by the embodiment of the present application, the metal grid 1072 surrounds three sub-pixels, which are respectively G sub-pixel, R sub-pixel and G sub-pixel, which are denoted as the first sub-pixel 1041 , the second sub-pixel 1042 and the third sub-pixel 1043, the connecting line between the center of the first sub-pixel 1041 and the center of the second sub-pixel 1042 is along the first direction, the center of the second sub-pixel 1042 and the center of the third sub-pixel 1043 The connecting line in the center is along the second direction, and the metal grid 1072 is L-shaped. Further, it can be set that all metal grids are L-shaped. In addition, the shape of the metal grid can also be a square shape, for example, the metal grid includes four adjacent R sub-pixels, G sub-pixels, B sub-pixels and G sub-pixels.

The metal grid 1073 surrounds five sub-pixels, which are the first sub-pixel 1041, the second sub-pixel 1042, the third sub-pixel 1043, the fourth sub-pixel 1044 and the fifth sub-pixel 1045, the center of the first sub-pixel 1041, the second sub-pixel The line connecting the center of the pixel 1042 and the center of the fourth sub-pixel 1044 is along the first direction, and the line connecting the center of the second sub-pixel 1042, the center of the third sub-pixel 1043, and the center of the fifth sub-pixel 1045 is along the second direction At this time, the shape of the metal grid 1073 is a cross shape, of course, all the metal grids can be set to be a cross shape.

Specifically, there are multiple metal grids in one touch electrode, and the number and types of sub-pixels surrounded by the orthographic projection of the multiple metal grids on the display layer can be the same or different. For example, some metal grids can be set on the display layer. The number of sub-pixels surrounded by the orthographic projection is 3, the number of sub-pixels surrounded by the orthographic projection of some metal grids on the display layer is 5, and the type of sub-pixels surrounded by the orthographic projection of some metal grids on the display layer is R sub-pixels and G sub-pixels, the types of sub-pixels surrounded by the orthographic projection of a part of the metal lattice on the display layer are G sub-pixels and B sub-pixels.

In the embodiment of the present application, the number of sub-pixels surrounded by a plurality of metal grids can be the same or different, so that the number of sub-pixels surrounded by metal grids can be freely set according to the actual needs of a specific area, further reducing the impact on the touch function layer. interference. Specifically, the plurality of metal grids may include a first metal grid and a second metal grid, and the number of sub-pixels surrounded by the orthographic projection of the first metal grid on the display layer may be greater than or equal to the orthographic projection of the second metal grid on the display layer The number of subpixels to enclose. 4, the number of sub-pixels surrounded by the first metal grid 1073 is 5, the number of sub-pixels surrounded by the second metal grid 1072 is 3, and the number of sub-pixels surrounded by the first metal grid 1073 is larger than that of the second metal grid 1073. The number of sub-pixels surrounded by the metal grid 1072 .

In the embodiment of the present application, the orthographic projection of at least one of the multiple metal grids on the display layer may surround a sub-pixel, such as a sub-pixel located at an edge position, so that the multiple touch electrodes among the touch electrodes Among the plurality of metal grids formed by wires, some of the metal grids can surround at least two sub-pixels in the orthographic projection of the display layer, and some of the metal grids can surround one sub-pixel in the orthographic projection of the display layer, so that each sub-pixel is covered by the metal grid as much as possible. Surrounding, to further reduce the interference to the touch function layer.

In the embodiment of the present application, the number of sub-pixels surrounded by at least one metal grid in the orthographic projection of the display layer is not specifically limited, and may be less than or equal to 5, such as 2 or 3, so The density of touch electrode wiring can be reduced to an appropriate size, for example, close to the density of touch electrode wiring corresponding to FHD resolution, so that the touch function layer is less disturbed and process waste is avoided.

In the embodiment of the present application, the touch function layer may also include dummy wires. The dummy wires are grounded or not connected to other electrical signals, and will not play a role in touch control. The dummy wires and the touch electrode wires constitute a touch sensor. The entire layer structure of the functional layer can improve the display uniformity of the display panel.

Specifically, the touch function layer includes at least one dummy wire located in the target metal grid among the plurality of metal grids, there is a gap between the at least one dummy wire and the target metal grid, and the at least one dummy wire is on the positive side of the display layer. The projection is located between at least two sub-pixels surrounded by the orthographic projection of the target metal grid on the display layer, that is, the dummy wiring is located in the non-pixel area of the display panel.

Referring to FIG. 5 , which is a top view of another display panel provided by the embodiment of the present application, the metal lattice 1071 surrounds the R sub-pixel and the G sub-pixel, and there is a dummy line 109 between the two sub-pixels, and the dummy line is connected to the The metal grids are not connected, and the metal grids surrounding two sub-pixels shown in FIG. 5 have a dummy wiring, which can improve the display uniformity of the display panel.

In the embodiment of the present application, the plurality of metal grids may include a third metal grid and a fourth metal grid, and the number of dummy wires in the third metal grid may be equal to the number of dummy wires in the fourth metal grid. Different, can also be the same. Referring to FIG. 6 , which is a top view of another display panel provided by the embodiment of the present application, the metal grid 1072 surrounds two G sub-pixels and one R sub-pixel, and there are dummy lines between two adjacent sub-pixels. Adjacent sub-pixels can be separated. There are two dummy lines in the metal grid 1072. The metal grid 1073 surrounds two R sub-pixels, two B sub-pixels and one G sub-pixel. Between two adjacent sub-pixels Both have dummy traces, the metal grid 1073 has four dummy traces, the shape of the metal grid 1074 is similar to that of the metal grid 1072, and also surrounds three sub-pixels, wherein there are dummy traces between the B sub-pixel and the G sub-pixel, There is no dummy wire between the G sub-pixel and the R sub-pixel, and there is a dummy wire in the metal lattice 1074 .

In the embodiment of the present application, the plurality of metal grids may include a fifth metal grid, and the light emitting colors of at least two sub-pixels surrounded by the orthographic projection of the fifth metal grid on the display layer may be the same or different. As shown in the figure, the metal The three sub-pixels surrounded by the grid 1072 are G sub-pixel, R sub-pixel and G sub-pixel respectively, and the light emitting colors of the sub-pixels are partly the same. Of course, the layout of the sub-pixels can be set according to actual needs. Referring to FIG. 7, it is a top view of another display panel provided by the embodiment of the present application. The pixels are arranged in sequence, so the four sub-pixels surrounded by the orthographic projection of the metal grid 1075 on the display layer emit the same color of light, which is green.

In the embodiment of the present application, a touch structure based on a mutual capacitive touch principle may also be used. The mutual capacitive touch structure includes a group of touch electrodes arranged crosswise, and the region where the electrodes intersect forms a capacitor, that is, the two touch electrodes form two poles of the capacitor respectively. When a finger touches the capacitive screen, it affects the coupling between the two electrodes near the touch point, thereby changing the capacitance between the two touch electrodes. When detecting the mutual capacitance, one of the electrodes in one direction sends an excitation signal in sequence, and all the electrodes in the other direction receive the signal at the same time, so that the capacitance value of the intersection point of all horizontal and vertical electrodes can be obtained, that is, the capacitance of the two-dimensional plane of the entire touch screen , according to the two-dimensional capacitance change data of the touch screen, the coordinates of each touch point can be calculated. Referring to FIG. 8 , it is a schematic layout diagram of a touch electrode provided by the embodiment of the present application. The touch electrode includes a first touch electrode 1051 and a second touch electrode 1052 . Multiple second touch electrodes along the x direction The electrodes 1052 are electrically connected, and the plurality of first touch electrodes 1051 along the y direction are electrically connected.

Specifically, the touch function layer may include a first conductive layer, an insulating layer and a second conductive layer stacked in sequence along the display direction of the display panel, wherein the second conductive layer is used to form a plurality of touch electrodes, and the first conductive layer Used to form connection lines between multiple touch electrodes.

Referring to FIG. 9, it is a cross-sectional view of the display panel in the AA direction, and FIG. 10 is a cross-sectional view of the display panel in the BB direction. The touch function layer includes a first conductive layer 1031, an insulating layer 1032 and a second The conductive layer 1033, the second conductive layer 1033 is used to form the first touch electrode 1051 and the second touch electrode 1052, the first conductive layer 1031 is used to form the first touch electrode 1051 or the second touch electrode 1052 The connection line, the first conductive layer 1031 shown in FIG. 9 is used to form the connection line between the two first touch electrodes 1051 .

During specific implementation, the second conductive layer can form a grid-like structure of the entire layer, and then divide the first touch electrode and the second touch electrode according to the shape of the touch electrode. For the first touch electrode and the second touch electrode, In the intersecting area of the electrodes, in order to avoid a short circuit between the two touch electrodes, FIG. 9 shows, for example, that the first conductive layer is used to form a bridge structure to realize the electrical connection of the first touch electrodes.

In the embodiment of the present application, referring to FIG. 11 , which is a top view of another display panel provided in the embodiment of the present application, the display panel may further include an encapsulation layer 125, a shielding layer 126 and a protective layer 127. The encapsulation layer 125 is located between the control function layer 103 and the display layer 102 to seal the display layer 102, wherein in order to realize the planarization of the display layer, a planarization layer 108 may be disposed above the display layer. The encapsulation layer 125 may be a thin-film encapsulation layer, located on the planarization layer 108, and used to prevent sub-pixels from being corroded by moisture and oxygen, and reduce the quality of the display panel. The shielding layer 126 is located on a side of the encapsulation layer away from the substrate, and may be an inorganic material.

The display panel further includes a touch function layer 103 located on the encapsulation layer 125 , and the touch function layer 103 includes a plurality of touch electrodes 105 for realizing a touch function. During specific implementation, self-capacitance or mutual-capacitance can be adopted. The touch function layer can be provided with a single-layer touch electrode or a double-layer touch electrode. It can also be provided with a metal mesh touch electrode. The electrodes include a plurality of metal electrode traces extending along two intersecting directions, and the metal electrode traces extending in different directions intersect to form a network, which can be selected according to actual conditions during specific implementation.

The protection layer 127 is located on the side of the touch function layer 103 away from the substrate 101, and is the outermost film layer of the display panel, which can be a protective cover or a protective film. The film layers inside the adjacent display panels are bonded together, and the surface of the protective layer 127 is the touch operation surface of the display panel.

In the embodiment of the present application, the substrate may be rigid or flexible, and the substrate may include multiple groups of polyimide (PI) layers and isolation layers stacked in sequence, and the material of the isolation layer may be polysilicon. The display panel can also include a pixel circuit layer 110, located between the substrate 101 and the display layer 102, the pixel circuit layer 110 includes a gate dielectric layer 113 and an interlayer insulating layer 116, the pixel circuit layer 110 includes a plurality of thin film transistors, and the thin film transistors can be Low Temperature Polycrystalline Oxide (Low TemperaturePolycrystalline Oxide, LTPO) thin film transistor. The thin film transistor includes a gate 111 and an active layer 112, with a gate dielectric layer 113 between the gate 111 and the active layer 112, and part of the active layer at the projection position of the gate 111 on the active layer 112 serves as a channel region, Both sides of the channel region are source and drain regions, and the source and drain regions may include a source region on one side of the channel region and a drain region on the other side of the channel region, and the source region may be connected to the source electrode 114 through a source line , the drain region is connected to the drain electrode 115 through a drain line, and an interlayer insulating layer 116 may be disposed on the gate 111, which may be an inorganic material or an organic material. The pixel circuit layer can also include a passivation layer 117, the passivation layer 117 is located on the source electrode 114 and the drain electrode 115 of the thin film transistor, the passivation layer 117 can be formed by inorganic materials such as silicon oxide or silicon nitride, and can also be made of organic material formed. The display panel may further include a planarization layer 118 on the passivation layer, which has a planarization effect.

The display layer 102 may include a first electrode layer 119, a pixel definition layer 1021, a light emitting layer 1022, an organic common layer 122 and a second electrode layer 123 stacked in sequence, the first electrode layer 119 may be used to form an anode, and the second electrode layer 123 It can be used to form a common cathode. The pixel definition layer 1021 is located above the first electrode layer 119 to define pixel areas and non-pixel areas. The organic common layer 122 includes an electron transport layer 1221 and a hole transport layer 1222. The light emitting layer 1022 is located on Between the electron transport layer 1221 and the hole transport layer 1222, and located in the pixel area, different materials for the light-emitting layer can be used to emit light of different colors, so that the colors of the sub-pixels to which the light-emitting layer belongs are different, and multiple sub-pixels can share The same film layers as hole transport layer 1222 and electron transport layer 1221.

An embodiment of the present application provides a display panel. The display panel includes a substrate, a display layer and a touch function layer. The substrate has a pixel area and a non-pixel area. The display layer is located on one side of the substrate. The display layer has sub-pixels in the pixel area. The touch function layer is located on the side of the display layer away from the substrate. The touch function layer includes touch electrodes. The touch electrodes include a plurality of touch electrode traces forming a plurality of metal lattice structures. At least one of the plurality of metal lattices The orthographic projection of the metal grid on the display layer surrounds at least two sub-pixels. In this way, compared with the prior art, the orthographic projection of the metal grid on the display layer surrounds one sub-pixel. In this application, the sub-pixels surrounded by the orthographic projection of the metal grid on the display layer The number of pixels increases, the number of metal grids in the touch electrodes decreases, the density of the touch electrode wiring decreases, and the interference received by the touch function layer will also become smaller, thereby avoiding the SNR of the display panel from exceeding the standard and improving the display panel. the quality of.

Based on the display panel provided by the above embodiments, as shown in FIG. 12 , the embodiment of the present application also provides a display device, the display device includes the above-mentioned display panel, and the display device has a display area AA and a non-display area NA, the non-display area surrounds the display area, the display area AA includes a pixel area and a non-pixel area, the pixel area is used to set OLED, and the non-display area NA is used to set wiring, the display device adopts the aforementioned display panel, which can reduce the display Interference with the touch function layer in the panel.

Each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments.

The above descriptions are only the preferred embodiments of the present application. Although the present application has been disclosed as above with preferred embodiments, it is not intended to limit the present application. Any person familiar with the art, without departing from the scope of the technical solution of the application, can use the methods and technical content disclosed above to make many possible changes and modifications to the technical solution of the application, or to modify the equivalent of equivalent changes Example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application that do not deviate from the content of the technical solution of the present application still fall within the protection scope of the technical solution of the present application.

Claims (15)

1. A display panel, comprising:

a substrate having a pixel region and a non-pixel region;

the display layer is positioned on one side of the substrate and is provided with sub-pixels in the pixel area;

the touch control functional layer is positioned on one side, far away from the substrate, of the display layer and comprises a touch control electrode, the touch control electrode comprises a plurality of touch control electrode routing lines forming a plurality of metal lattice structures, and the orthographic projection of at least one metal lattice in the plurality of metal lattices on the display layer surrounds at least two sub-pixels.

2. The display panel of claim 1, wherein the sub-pixels are arranged in an array along a first direction and a second direction forming an angle with the first direction, and the plurality of touch electrode traces comprise a plurality of first touch electrode traces along the first direction and a plurality of second touch electrode traces along the second direction.

3. The display panel according to claim 2, wherein at least one of the plurality of metal lattices is located on a target straight line having an extending direction along the first direction at a center of a sub-pixel surrounded by an orthogonal projection of the display layer.

4. The display panel according to claim 2, wherein an orthogonal projection of at least one of the plurality of metal lattices on the display layer encloses at least three sub-pixels, the at least three sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel, a line connecting a center of the first sub-pixel and a center of the second sub-pixel is in the first direction, and a line connecting a center of the second sub-pixel and a center of the third sub-pixel is in the second direction.

5. The display panel according to claim 3, wherein a line connecting centers of the sub-pixels surrounded by the orthographic projection of each of the plurality of metal lattices on the display layer is parallel to the first direction.

6. The display panel according to any one of claims 1 to 4, wherein the plurality of metal lattices include a first metal lattice and a second metal lattice, and the number of sub-pixels surrounded by an orthogonal projection of the first metal lattice on the display layer is greater than or equal to the number of sub-pixels surrounded by an orthogonal projection of the second metal lattice on the display layer.

7. The display panel according to any one of claims 1 to 4, wherein an orthogonal projection of at least one of the plurality of metal lattices on the display layer encloses one sub-pixel.

8. The display panel according to any one of claims 1 to 4, wherein the number of sub-pixels surrounded by a forward projection of at least one of the plurality of metal lattices in the display layer is less than or equal to 5.

9. The display panel according to any one of claims 1 to 4, wherein the touch functional layer further comprises:

the display device comprises a plurality of metal lattices, at least one nominal wire in a target metal lattice in the plurality of metal lattices, a gap is formed between the at least one nominal wire and the target metal lattice, the orthographic projection of the at least one nominal wire on the display layer is located between at least two sub-pixels surrounded by the orthographic projection of the target metal lattice on the display layer.

10. The display panel according to claim 9, wherein the plurality of metal cells includes a third metal cell and a fourth metal cell, and a number of the dummy traces in the third metal cell is different from a number of the dummy traces in the fourth metal cell.

11. The display panel according to any one of claims 1 to 4, wherein the plurality of metal lattices includes a fifth metal lattice, and the light emission colors of at least two sub-pixels surrounded by the orthographic projection of the display layer of the fifth metal lattice are different.

12. The display panel according to any one of claims 1 to 4, wherein the touch functional layer comprises:

the display panel comprises a first conducting layer, an insulating layer and a second conducting layer which are sequentially stacked along the display direction of the display panel, wherein the second conducting layer is used for forming the touch electrodes, and the first conducting layer is used for forming connecting lines among the touch electrodes.

13. The display panel according to claim 12, wherein the display panel further comprises:

the packaging layer is positioned between the touch functional layer and the display layer;

the shielding layer is positioned on one side of the packaging layer far away from the substrate;

and the protective layer is positioned on one side of the touch functional layer, which is far away from the substrate.

14. The display panel of claim 13, wherein the display panel further comprises a pixel circuit layer between the substrate and the display layer, wherein the pixel circuit layer comprises a plurality of thin film transistors, and wherein the thin film transistors comprise low temperature poly-oxide thin film transistors.

15. A display device characterized by comprising the display panel according to any one of claims 1 to 14.

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