CN113238402A

CN113238402A - Display panel and display device

Info

Publication number: CN113238402A
Application number: CN202110507470.7A
Authority: CN
Inventors: 林洁; 朱绎桦; 刘冰萍; 陈国照
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-08-10
Anticipated expiration: 2041-05-10
Also published as: CN113238402B

Abstract

The invention discloses a display panel and a display device, and relates to the technical field of display, wherein the display panel comprises a plurality of sub-pixels which are arranged along a first direction and a second direction, each sub-pixel comprises a first color sub-pixel, a second color sub-pixel, a third color sub-pixel and a fourth color sub-pixel which are arranged along the first direction, and the light transmittance of the fourth color sub-pixel is greater than that of the other color sub-pixels; along the first direction, a pixel interval is arranged between any two adjacent sub-pixels, and the pixel interval adjacent to the fourth color sub-pixel is a first interval; the touch control device comprises a plurality of touch control electrodes and touch control signal lines connected with the touch control electrodes; the touch electrode and the touch signal line are located on different film layers and are electrically connected through at least one through hole, and the orthographic projection of the through hole on the light-emitting surface of the display panel is located in the orthographic projection range of the pixel interval on the light-emitting surface and is not overlapped with the orthographic projection of the first interval on the light-emitting surface. This is advantageous for the product open ratio.

Description

Display panel and display device

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.

Background

From the CRT (Cathode Ray Tube) era to the liquid crystal era and now to the OLED (Organic Light-Emitting Diode) era, the display industry has been developing over decades. The display industry is closely related to our life, and display technologies cannot be separated from traditional mobile phones, flat panels, televisions and PCs to current intelligent wearable devices and VR and other electronic devices.

With the development of display technologies, users have higher and higher requirements for the aperture ratio of the display device, and how to increase the aperture ratio of the display product with touch function is one of the technical problems to be solved urgently at the present stage.

Disclosure of Invention

In view of this, the invention provides a display panel and a display device, which have a touch function and are beneficial to improving the aperture opening ratio.

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

a plurality of sub-pixels arranged in a first direction and a second direction, the sub-pixels including a first color sub-pixel, a second color sub-pixel, a third color sub-pixel, and a fourth color sub-pixel arranged in the first direction, wherein a light transmittance of the fourth color sub-pixel is greater than light transmittances of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel, and the first direction and the second direction intersect; along the first direction, a pixel interval is arranged between any two adjacent sub-pixels, and the pixel interval adjacent to the fourth color sub-pixel is a first interval;

the touch control signal lines extend along the second direction and are arranged along the first direction; the touch electrode and the touch signal line are located on different film layers and are electrically connected through at least one through hole, and the orthographic projection of the through hole on the light emitting surface of the display panel is located in the orthographic projection range of the pixel interval on the light emitting surface and is not overlapped with the orthographic projection of the first interval on the light emitting surface.

In a second aspect, the present application provides a display device including the display panel provided by the present application.

Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:

in the display panel and the display device provided by the invention, the display area comprises the opening area and the non-opening area, and the larger the area ratio of the opening area in the whole product is, the higher the product opening rate is. And a pixel interval is arranged between any two adjacent sub-pixels in the display area along the first direction and is positioned in the non-opening area, wherein the pixel interval adjacent to the sub-pixel of the fourth color is a first interval. Because the light transmittance of the fourth color sub-pixel is greater than that of the other color sub-pixels, the overall display brightness of the product is improved when the fourth color sub-pixel is introduced into the display panel. The display panel and the display device are also provided with the touch electrode and the touch signal line, so that the display panel and the display device have a touch function, wherein the touch electrode and the touch signal line are arranged on different film layers and are electrically connected through at least one through hole. Particularly, the via holes are arranged in the pixel intervals, and the via holes are not arranged in the first interval, that is, the via holes are not arranged in the pixel intervals at two sides of the fourth color sub-pixel along the first direction, so that the risk of unreliable electrical connection caused by insufficient space of the first interval when the via holes are arranged in the first interval is effectively avoided, and the problem of reduced aperture ratio caused by arranging the via holes in a manner of increasing the first interval is also avoided, therefore, the arrangement manner of the via holes is not only beneficial to improving the aperture ratio of a product, but also beneficial to improving the accuracy of signal transmission between the touch control electrode and the touch control signal line.

Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a top view of a display panel according to an embodiment of the invention;

fig. 2 is a schematic diagram illustrating a pixel arrangement in a display panel according to an embodiment of the invention;

FIG. 3 is a schematic diagram of an actual pixel layout corresponding to FIG. 2;

fig. 4 is a schematic diagram illustrating a relative position relationship between a touch electrode, a touch signal line and a sub-pixel in a display panel according to an embodiment of the invention;

fig. 5 is a schematic diagram illustrating a relative position relationship between a touch electrode, a touch signal line and a via hole in a display panel according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating another relative position relationship among touch electrodes, touch signal lines, and via holes in a display panel according to an embodiment of the present invention;

FIG. 7 shows a cross-sectional view AA' of FIG. 6;

FIG. 8 is a schematic diagram illustrating a relative position relationship between a via group and a pixel spacing in a display panel according to an embodiment of the present invention;

FIG. 9 is an enlarged view of the same set of via holes in a pixel interval;

fig. 10 is a schematic diagram illustrating a relative position relationship between a touch electrode and a touch signal line in a display panel according to an embodiment of the invention;

FIG. 11 is a schematic diagram illustrating another relative position relationship between a via group and a pixel interval in a display panel according to an embodiment of the invention;

fig. 12 is a schematic diagram illustrating signal lines disposed in adjacent sub-pixel columns in the display panel according to the embodiment of the invention;

FIG. 13 is a schematic diagram illustrating a relative position relationship between a pixel spacing and a via hole in a display panel according to an embodiment of the invention;

fig. 14 is a schematic layout diagram of a sub-pixel in a display panel according to an embodiment of the present invention, where the sub-pixel includes four colors, red, green, blue, and white;

fig. 15 is a schematic structural diagram of a display device according to an embodiment of the invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Fig. 1 is a top view of a display panel according to an embodiment of the present invention, fig. 2 is a schematic diagram of a pixel arrangement in the display panel according to the embodiment of the present invention, fig. 3 is a schematic diagram of an actual pixel arrangement corresponding to fig. 2, fig. 3 shows an actual arrangement of sub-pixels according to an arrangement of pixel electrodes, referring to fig. 1 to 3, a display panel 100 according to the present invention includes:

a plurality of sub-pixels P arranged in a first direction and a second direction, the sub-pixels P including a first color sub-pixel P1, a second color sub-pixel P2, a third color sub-pixel P3, and a fourth color sub-pixel P4 arranged in the first direction, wherein a light transmittance of the fourth color sub-pixel P4 is greater than light transmittances of the first color sub-pixel P1, the second color sub-pixel P2, and the third color sub-pixel P3, and the first direction and the second direction intersect; in the first direction, a pixel interval is arranged between any two adjacent sub-pixels P, and the pixel interval adjacent to the fourth color sub-pixel P4 is a first interval G1;

referring to fig. 4, a plurality of touch electrodes 20 and touch signal lines 30 connected to the touch electrodes 20, the touch signal lines 30 extending along a second direction and being arranged along a first direction, fig. 4 is a schematic diagram illustrating a relative position relationship among the touch electrodes 20, the touch signal lines 30 and the sub-pixels P in the display panel 100 according to the embodiment of the present invention, the touch electrodes 20 and the touch signal lines 30 are located on different layers, and the touch electrodes 20 and the touch signal lines 30 are electrically connected through at least one via hole K, an orthogonal projection of the via hole K on a light-emitting surface of the display panel 100 is located in an orthogonal projection range of the pixel interval on the light-emitting surface, and is not overlapped with an orthogonal projection of the first interval G1 on the light-emitting surface. It should be noted that the via in the present invention refers to a hole filled with a conductive material, the touch electrode 20 is electrically connected to the touch signal line 30 through at least one via K, and the electrical connection path formed by the touch electrode 20 and the touch signal line 30 includes the via K, fig. 4 shows a case where the touch electrode 20 and the touch signal line 30 are electrically connected only through the via K, of course, in some other embodiments of the present invention, besides the via K, the electrical connection path formed by the touch electrode 20 and the touch signal line 30 may also include other electrical connection mediums, which will be described in the following embodiments of the present invention.

It should be understood that fig. 4 only shows a corresponding relationship between a part of the touch electrodes 20 and the sub-pixels P, and does not represent the number of the touch electrodes 20 actually included in the display panel 100, in addition, fig. 4 shows a case that one touch electrode 20 corresponds to 4 rows and 8 columns of the sub-pixels P, in other embodiments of the present invention, the number of the sub-pixels P corresponding to one touch electrode 20 may be represented as another, and fig. 4 is only a schematic illustration. It should be noted that fig. 4 only shows the corresponding relationship between one touch electrode 20 and the sub-pixel P in the display panel 100, in fact, the display panel 100 may include a plurality of touch electrodes 20, and the arrangement of the touch electrodes 20 can be seen in fig. 5, where fig. 5 shows a schematic diagram of a relative position relationship between the touch electrode 20, the touch signal line 30 and the via hole K in the display panel 100 according to the embodiment of the present invention, although fig. 5 does not show the sub-pixel P, the corresponding relationship between each touch electrode 20 and the sub-pixel P can be seen in fig. 4.

It should be further noted that fig. 1 only illustrates the display panel 100 of the present invention by taking the display panel 100 of a rectangular structure as an example, and does not limit the actual shape of the display panel 100, and in some other embodiments of the present invention, the display panel 100 may also be embodied in other shapes, such as a rounded rectangle, a circle, an ellipse, or other structures including an arc-shaped edge, which is not specifically limited by the present invention. Fig. 2 and 3 illustrate only a part of the sub-pixels P in the display panel 100, and do not represent the actual shape and number of the sub-pixels P included in the display panel 100, nor the actual size of the sub-pixels P. Fig. 2 and 3 only show one arrangement of the sub-pixels P in the display panel 100, and in some other embodiments of the present invention, the arrangement of the sub-pixels P may be embodied otherwise.

Specifically, referring to fig. 1 to fig. 3, in the sub-pixel P included in the display panel 100 of the present invention, a fourth color sub-pixel P4 is added on the basis of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3, and the light transmittance of the fourth color sub-pixel P4 is greater than that of the other color sub-pixels P, for example, the fourth color sub-pixel P4 may be embodied as a white sub-pixel or another color sub-pixel or a transparent sub-pixel with higher light transmittance, and so on. When the fourth color sub-pixel P4 with high light transmittance is introduced into the display panel 100, the light transmittance of the entire display panel 100 is greatly improved. When the display panel 100 of the present invention is applied to a liquid crystal display device, it is beneficial to reduce the luminance cost of the backlight module, and when displaying the same luminance image, the power consumption is greatly reduced compared with the panel without the fourth color sub-pixel P4. In addition, on the basis of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3, the display panel 100 can also display richer colors by introducing the fourth color sub-pixel P4. Therefore, when the fourth color sub-pixel P4 with high light transmittance is introduced into the display panel 100, the display panel 100 has advantages of high brightness, high color gamut, low power consumption, and the like.

In the display panel 100 provided by the present invention, the display area AA includes an open area and a non-open area, and the larger the area ratio of the open area in the whole product is, the higher the product aperture ratio will be. With continued reference to fig. 1 to 3, the sub-pixels P of each color are located in a display area AA, a pixel interval G is disposed between any two adjacent sub-pixels P along the first direction in the display area AA, and the pixel interval G is located in a non-opening area in the display area, wherein the pixel interval G adjacent to the sub-pixel P4 of the fourth color is a first interval G1.

Referring to fig. 4 and 5, the display panel 100 provided by the present invention is further provided with a touch electrode 20 and a touch signal line 30, so that the display panel 100 and the display device 200 have a touch function, wherein the touch electrode 20 and the touch signal line 30 are located on different film layers, and are electrically connected through at least one via hole K. In particular, referring to fig. 2 and fig. 3 together, the present invention arranges the via K in the pixel interval, and does not arrange the via K in the first interval G1, that is, the via holes K are not provided in the pixel intervals at the two sides of the fourth color sub-pixel P4 along the first direction, so that the risk that the electrical connection is not reliable due to insufficient space of the first interval G1 when the via holes K are provided in the first interval G1 (for example, when the cross-bridge connection is adopted between the touch signal line 30 and the touch electrode 20, the problem that short circuit is caused due to insufficient space, or the risk that poor contact is caused due to process fluctuation) is effectively avoided, meanwhile, the problem of reduced aperture ratio caused by the arrangement of the via holes K in such a manner as to increase the first interval G1 is also avoided, and therefore, the arrangement of the via holes K is not only beneficial to improving the aperture ratio of the product, meanwhile, the accuracy of signal transmission between the touch electrode 20 and the touch signal line 30 is improved.

In an alternative embodiment of the present invention, fig. 6 is a schematic diagram illustrating another relative position relationship among the touch electrode 20, the touch signal line 30 and the via hole K in the display panel 100 according to the embodiment of the present invention, fig. 7 is an AA' cross-sectional view of fig. 6, please refer to fig. 1, fig. 6 and fig. 7, the display panel 100 further includes a substrate 10 and a plurality of bridges 40, along a direction perpendicular to a plane of the substrate 10, the touch signal line 30 is located between the touch electrode 20 and the substrate 10, and the bridges 40 are located on a side of the touch electrode 20 away from the substrate 10; it should be noted that, in order to clearly reflect the planar correspondence between the bridge and the via hole, the bridge in fig. 6 is not filled in the present application.

The via hole K forms a plurality of via hole groups K0, each via hole group K0 comprises a first via hole K1 and a second via hole K2, and the first via hole K1 and the second via hole K2 in the same via hole group K0 are positioned in the same pixel interval; the same touch signal line 30 is electrically connected to the bridge 40 through a first via hole K1 in the same via hole group K0, and the touch electrode 20 corresponding to the touch signal line 30 is electrically connected to the bridge 40 through a second via hole K2 in the same via hole group K0.

Specifically, fig. 6 and 7 show a scheme of electrically connecting the touch signal line 30 and the touch electrode 20 through the via group K0. Referring to fig. 7, the display panel 100 includes a substrate 10, a touch trace layer C1, a touch electrode layer C2 and a bridge 40, wherein the touch signal line 30 is located on the touch trace layer C1, and the touch electrode 20 is located on the touch electrode layer C2, the touch trace layer C1 is located between the substrate 10 and the touch electrode layer C2, and the bridge 40 is located on a side of the touch electrode layer C2 away from the substrate 10.

It should be noted that fig. 7 only shows a scheme of forming an electrical connection between the touch signal line 30 and the touch electrode 20 through the bridge 40, in some other embodiments of the present invention, a hole may be formed in the insulating layer between the touch electrode 20 and the touch signal line 30, and the touch electrode 20 and the touch signal line 30 are directly connected by the hole, which is not limited in this embodiment of the present invention. The scheme of forming the electrical connection between the touch signal line 30 and the touch electrode 20 through the bridge 40 will be further described below.

Fig. 8 is a schematic diagram illustrating a relative position relationship between a via group K0 and a pixel interval in a display panel 100 according to an embodiment of the present invention, please refer to fig. 6 to 8, each via group K0 includes two via holes, the two via holes are a first via hole K1 and a second via hole K2, the two via holes in the same via group K0 are located in the same pixel interval, the same via group K0 corresponds to the same touch signal line 30, specifically, the same touch signal line 30 is connected to a bridge 40 through the first via hole K1 in the same via group K0, and a touch electrode 20 corresponding to the touch signal line 30 is electrically connected to the same bridge 40 through the second via hole K2 in the same via group K0, so that the touch signal line 30 and the touch electrode 20 are electrically connected. In the invention, the bridge 40 is electrically connected to the touch signal line 30 and the touch electrode 20 through the first via hole K1 and the second via hole K2 in the same via hole group K0, which is beneficial to reducing the impedance of the touch signal line 30, and further reducing the voltage drop generated in the transmission process of the touch signal.

Optionally, with continued reference to fig. 7, the touch electrode layer C2 in the present invention may be used to multiplex a common electrode layer on the display panel 100, so that it is not necessary to introduce a separate film layer into the display panel 100 to dispose the touch electrode 20, which is beneficial to simplify the film layer structure of the display panel 100. In addition, the bridge 40 of the present invention can be located on the pixel electrode layer of the display panel 100, and thus, it is not necessary to introduce a separate film layer into the display panel 100 to dispose the bridge 40, which is beneficial to simplifying the film layer structure of the display panel 100 while achieving the connection between the touch signal line 30 and the bridge 40 of the touch electrode 20.

Optionally, with reference to fig. 7, a thin film transistor array layer (a detailed film layer structure is not shown in the figure) may be further included between the touch routing layer C1 and the substrate 10, that is, the touch routing layer C1 of the touch signal line 30 is a routing layer added on a side of the thin film transistor array layer away from the substrate 10, so as to avoid interference between signals transmitted by the touch routing layer and signals transmitted by the thin film transistor array layer.

In an alternative embodiment of the present invention, with continued reference to fig. 6, the same touch signal line 30 is electrically connected to the same touch electrode 20 through a plurality of via sets K0. Optionally, fig. 6 shows that the same touch signal line 30 is electrically connected to the same touch electrode 20 through three via groups, and fig. 6 is only an illustration, and in some other embodiments of the present invention, the same touch signal line 30 may also be electrically connected to the same touch electrode 20 through more than three via groups, which is not limited in the present invention.

In the present invention, with reference to fig. 6, the via group K0 is used as a medium for electrical connection between the touch signal line 30 and the touch electrode 20, and when the same touch signal line 30 is electrically connected to the same touch electrode 20 through the via groups K0, the number of the electrical connection media between the touch signal line 30 and the touch electrode 20 is increased, which is beneficial to improving the reliability of the electrical connection between the touch signal line 30 and the touch electrode 20 in the display panel. In addition, because the first via hole K1 and the second via hole K2 in the via hole group K0 are both connected to the bridge, when the same touch signal line 30 is connected to a plurality of via hole groups K0, the same touch signal line 30 is connected to the bridge through a plurality of first via holes K1, which is equivalent to connecting resistors in parallel to the touch signal line 30, thereby being beneficial to further reducing the impedance of the touch signal line 30, being beneficial to reducing the voltage drop of the touch signal line 30 in the signal transmission process, and improving the transmission rate of the touch signal, and further being beneficial to improving the touch sensitivity of the display panel.

In an alternative embodiment of the present invention, please refer to fig. 8, the sub-pixels P form a plurality of sub-pixel rows H, and the sub-pixels P in the sub-pixel rows H are arranged along a first direction; in the extending direction of the touch signal line 30, at least one subpixel row H is arranged between any two adjacent via groups K0 in the plurality of via groups K0 corresponding to the same touch signal line 30.

Referring to fig. 8, when the same touch signal line 30 corresponds to a plurality of via groups K0, two adjacent via groups K0 corresponding to the same touch signal line 30 are separated by at least one subpixel row H, and optionally, two adjacent via groups K0 are separated by one subpixel row H, so that on one hand, the reliability of the electrical connection between the touch signal line 30 and the touch electrode 20 can be ensured, and the voltage drop of the touch signal line 30 during signal transmission can be reduced, on the other hand, the arrangement uniformity of the via groups K0 corresponding to the same touch signal line 30 on the display panel 100 can be improved, and the difficulty in manufacturing the via groups K0 can be reduced.

In an alternative embodiment of the present invention, fig. 9 is an enlarged schematic view of the same via group K0 in a pixel interval, and in the same via group K0, the arrangement direction of the first via hole K1 and the second via hole K2 intersects with the first direction.

With continued reference to fig. 9, in the same pixel interval, the arrangement direction of the first via hole K1 and the second via hole K2 corresponding to the same via group K0 is not the first direction, but the first via hole K1 and the second via hole K2 are arranged in a staggered manner along the second direction, that is, the straight line connecting the center of the first via hole K1 and the center of the second via hole K2 intersects the first direction, which is advantageous for reducing the space occupied by the first via hole K1 and the second via hole K2 in the same via group K0 along the first direction in the pixel interval, so that one via group K0 can be arranged in the pixel interval without increasing the width of the pixel interval, without increasing the area of the non-open area in the display panel, thereby being advantageous for ensuring the open ratio of the display panel. Alternatively, when the pixel interval at which the via group K0 is provided is sufficient in the size in the second direction, the first and second vias K1 and K2 in the same pixel group may be arranged in the second direction to reduce the difficulty in manufacturing the first and second vias K1 and K2.

In an alternative embodiment of the invention, fig. 10 is a schematic diagram illustrating a relative position relationship between the touch electrode 20 and the touch signal lines 30 in the display panel 100 according to the embodiment of the invention, where the same touch electrode 20 is electrically connected to at least two touch signal lines 30.

It should be noted that, in order to clearly show the relative position relationship between the pixel electrode and the touch signal line 30, the sub-pixel P in the display panel 100 is not shown in fig. 10. With reference to fig. 10, when the same touch electrode 20 is electrically connected to at least two touch signal lines 30 (fig. 10 only shows that the same touch electrode 20 is electrically connected to two touch signal lines 30, in some other embodiments of the present invention, the same touch electrode 20 may also be electrically connected to more than two touch signal lines 30), the touch signals transmitted by the at least two touch signal lines 30 corresponding to the same touch electrode 20 are the same, that is, the touch signal lines 30 may transmit touch signals simultaneously, and even if one of the touch signal lines 30 fails, the other touch signal lines 30 can normally transmit touch signals, thereby improving the reliability of signal transmission of the touch signal lines 30.

Optionally, when the same touch electrode 20 is electrically connected to at least two touch signal lines 30, the number of the via groups K0 connected to each touch signal line 30 corresponding to the same touch electrode 20 may be set to be the same or approximately the same, so that the impedances of the touch signal lines 30 corresponding to the same touch electrode 20 are the same or approximately the same, and the transmission speeds of the signals in the touch signal lines 30 tend to be the same, thereby facilitating the improvement of the touch reliability and accuracy of the display panel.

In an alternative embodiment of the present invention, fig. 11 is a schematic diagram illustrating another relative position relationship between a via group and a pixel interval in a display panel provided in an embodiment of the present invention, in which sub-pixels P form a plurality of sub-pixel columns L, and the sub-pixels P in the sub-pixel columns L are arranged along a second direction; at least two adjacent touch signal lines 30 corresponding to the same touch electrode 20 are spaced by at least two pixel rows L between the orthographic projections of the light emitting surfaces.

In general, the touch signal lines 30 are disposed between adjacent sub-pixel columns L, fig. 12 is a schematic diagram illustrating disposing signal lines in the adjacent sub-pixel columns L in the display panel provided in the embodiment of the invention, fig. 12 illustrates the dummy signal lines X not connected to the touch electrodes 20 in addition to the touch signal lines 30 electrically connected to the touch electrodes 20, and the extension directions of the dummy signal lines X and the touch signal lines 30 are the same. In the actual process of manufacturing the touch signal lines 30, a plurality of signal lines arranged along the first direction and extending along the second direction are formed on the touch wiring layer, wherein, of the signal lines, the signal line electrically connected to the touch electrode 20 is the touch signal line 30, and the signal line not electrically connected to the touch electrode 20 is the aforementioned dummy signal line X. In this embodiment, the dummy signal lines X are reserved, which is beneficial to improving the overall arrangement uniformity of the signal lines in the touch wiring layer C1 (see fig. 7).

In the present embodiment, among the signal traces of the touch trace layer, the trace at the position where the via group K0 is disposed corresponds to the touch signal line 30, in the present embodiment, at least two pixel rows L are spaced between the orthographic projections of the light emitting surface of at least two adjacent touch signal lines 30 corresponding to the same touch electrode 20, so that the via group K0 corresponding to the touch signal line 30 is disposed to avoid the first interval G1 corresponding to the fourth color sub-pixel P4, thereby being beneficial to improving the overall aperture ratio of the display panel 100.

In an alternative embodiment of the present invention, referring to fig. 2, along the first direction, the width of the pixel aperture corresponding to the fourth color sub-pixel P4 is smaller than the width of the pixel aperture corresponding to any one of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3.

Specifically, the fourth color sub-pixel P4 is introduced on the basis of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3, so as to improve the display brightness of the display panel 100 and reduce the panel power consumption. If the width of the pixel opening corresponding to the fourth color sub-pixel P4 is set to be greater than the widths of the pixel openings of the other color sub-pixels P, the aperture ratio of the fourth color sub-pixel P4 will be greater, which may affect the normal color display effect of the display panel 100, therefore, the width of the pixel opening corresponding to the fourth color sub-pixel P4 is set to be less than the widths of the pixel openings of the other color sub-pixels, which is not only beneficial to improving the overall display brightness of the display panel and reducing the panel power consumption, but also does not affect the normal display effect of the display panel.

In an alternative embodiment of the present invention, with reference to fig. 2 and fig. 3, the pixel interval along the first direction, which is not adjacent to the fourth color sub-pixel P4, is the second interval G2, and the width of the second interval G2 is greater than the width of the first interval G1.

Specifically, when the fourth color sub-pixel P4 is introduced into the display panel 100, the width of the first interval G1 on both sides of the fourth color sub-pixel P4 in the first direction is set to be smaller than the width of the second interval G2 which is not adjacent to the fourth color sub-pixel P4, so that the occupation ratio of the fourth color sub-pixel P4 and the corresponding first interval G1 in the display panel when the fourth color sub-pixel P4 is introduced can be reduced, and the influence on the aperture of the other sub-pixels P can be avoided. In addition, in the invention, the via hole K is arranged in the second interval G2 with a larger width, and the second interval G2 has enough space for arranging the via hole, so that the width of the second interval G2 does not need to be further increased, thereby being beneficial to improving the whole aperture opening ratio of the display panel and further being beneficial to improving the use experience effect of a user.

In an alternative embodiment of the invention, fig. 13 is a schematic diagram illustrating a relative position relationship between a pixel interval and a via hole in the display panel 100 according to the embodiment of the invention, please refer to fig. 2 and 13, a pixel interval that is not adjacent to the fourth color sub-pixel P4 along the first direction is a second interval G2, and the second interval G2 includes a first sub-interval G21 and a second sub-interval G22; in the first direction, the first sub-interval G21 is located between the first color sub-pixel P1 and the second color sub-pixel P2, and the second sub-interval G22 is located between the second color sub-pixel P2 and the third color sub-pixel P3; the orthographic projections of the via holes (corresponding to the first via hole K1 and the second via hole K2 in fig. 13, or corresponding to the via hole K in fig. 3) on the light-emitting surface are all located within the orthographic projection range of the first sub-interval G21 on the light-emitting surface, or the orthographic projections of the via holes on the light-emitting surface are all located within the orthographic projection range of the second sub-interval G22 on the light-emitting surface.

Specifically, referring to fig. 2, 12 and 13, in order to clearly show the position relationship between the vias K and the pixel spacing, in the embodiment shown in fig. 12, the vias are all located in the second sub-spacing G22, i.e. all located in the pixel spacing between the second color sub-pixel P2 and the third color sub-pixel P3; in the embodiment shown in fig. 13, the vias are all located in the first sub-interval G21, i.e. in the pixel interval between the first color sub-pixel P1 and the second color sub-pixel P2. By the mode of fixedly arranging the via holes in the first sub-interval G21 or the second sub-interval G22, the arrangement positions of the via holes follow a fixed rule, the arrangement process of the via holes is simplified, and the overall production efficiency of the display panel is improved; in addition, the via hole is fixedly disposed in the first sub-interval G21 or the second sub-interval G22, so that the phenomenon that the via hole is disposed in the first interval G1 corresponding to the fourth color sub-pixel P4 is avoided, and thus the aperture ratio of the display panel 100 is also improved.

In an alternative embodiment of the present invention, please refer to fig. 12 and 13, the first color sub-pixel P1, the second color sub-pixel P2, the third color sub-pixel P3 and the fourth color sub-pixel P4 are a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B and a white sub-pixel W, respectively.

Specifically, the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 are respectively selected as a red sub-pixel R, a green sub-pixel G and a blue sub-pixel B, the three colors of red, green and blue are used as three primary colors, the color range of the three primary colors is the widest, and the color-changing display panel realizes the colorful display function of the display panel when being applied to the display panel. In addition, the fourth color sub-pixel P4 is selected as the white sub-pixel W, the light transmittance of the white sub-pixel W is much greater than the light transmittance of the red, green and blue sub-pixels, and the light transmittance of the entire display panel is greatly improved when the white sub-pixel W is used as the fourth color sub-pixel P4. When the liquid crystal display panel is applied to a liquid crystal display device, the brightness cost of the backlight module is favorably reduced, and when a picture with the same brightness is displayed, the power consumption is greatly reduced compared with a panel without the white sub-pixels.

In an alternative embodiment of the present invention, please refer to fig. 14, fig. 14 is a schematic layout diagram of a display panel 100 according to an embodiment of the present invention, in which sub-pixels include four colors of red, green, blue and white, the sub-pixels form a plurality of sub-pixel rows H, and the sub-pixels in the sub-pixel rows H are arranged along a first direction; in any two sub-pixel rows H adjacent in the second direction, any two sub-pixels adjacent in the second direction are different in color.

Specifically, taking fig. 14 as an example, in two subpixel rows H arbitrarily adjacent in the second direction, two subpixels arbitrarily adjacent up and down are different in color. Assuming that the subpixel row H includes a first subpixel row H1 and a second subpixel row H2 alternately arranged along a first direction, the arrangement of the subpixels in the first subpixel row H1 is rgbwrggbw … …, and the arrangement of the subpixels in the second subpixel row H2 is bwrgbwrgwgg … …, such arrangement enables the fourth color subpixels P4 to be distributed in different areas of the display panel, thereby avoiding the problem that the display panel has a local bright line due to the fourth color subpixel P4 appearing in the same subpixel row, and thus effectively improving the display luminance of the display panel, and simultaneously being beneficial to improving the overall luminance uniformity of the display panel and improving the display effect.

It should be noted that, the embodiment shown in fig. 14 only shows one arrangement manner of the sub-pixels in the first sub-pixel row H1 and the second sub-pixel row H2, and when the arrangement manner of the sub-pixels in the first sub-pixel row H1 is rgbwgbw … …, the arrangement manner of the sub-pixels in the second sub-pixel row H2 may also be embodied as other, for example, GBWRGBWR … …, or wrgbgb wrgb … …, and the like, which is not specifically limited in this embodiment of the invention.

In addition, fig. 14 only shows that the first subpixel row H1 and the second subpixel row H2 are alternately arranged in the display panel, and in some other embodiments of the present invention, the display panel may further include a third subpixel row in addition to the first subpixel row H1 and the second subpixel row H2, for example, the arrangement of the subpixels in the first subpixel row H1 is rgbwrgbwrgbw … …, the arrangement of the subpixels in the second subpixel row H2 is bwrgbw … …, the arrangement of the subpixels in the third subpixel row H is bwrgbw … …, and so on. Of course, the display panel may further include a fourth sub-pixel row, and when the pixel arrangement manner of the first sub-pixel row H1, the second sub-pixel row H2, and the third sub-pixel row is the foregoing arrangement manner, the arrangement manner of the sub-pixels in the fourth sub-pixel row is WRGBWRGB … …. It should be noted that, when the display panel includes three different sub-pixel rows H, the sub-pixel rows H may be arranged in a manner that the first sub-pixel row H1, the second sub-pixel row H2, the third sub-pixel row and the fourth sub-pixel row are sequentially arranged, and the arrangement order of the first sub-pixel row H1, the second sub-pixel row H2 and the third sub-pixel row may also be interchanged, which is not specifically limited in the present invention. When the display panel includes four different sub-pixel rows, the sub-pixel rows may be arranged in a manner that the first sub-pixel row, the second sub-pixel row, the third sub-pixel row, and the fourth sub-pixel row are sequentially arranged, and the arrangement order of the first sub-pixel row, the second sub-pixel row, the third sub-pixel row, and the fourth sub-pixel row may also be interchanged, which is not specifically limited in the present invention.

Based on the same inventive concept, the present invention further provides a display device 200, and fig. 15 is a schematic structural diagram of the display device 200 according to the embodiment of the present invention, where the display device 200 includes the display panel 100 according to any of the above embodiments of the present invention. Referring to fig. 3 and 4, in the present invention, the via holes K corresponding to the touch electrodes 20 and the touch signal lines 30 are disposed in the pixel intervals, and the via holes K are not disposed in the first interval G1, that is, the via holes K are not disposed in the pixel intervals on the two sides of the fourth color sub-pixel P4 along the first direction, so that a short circuit risk possibly caused by insufficient space of the first interval G1 when the via holes K are disposed in the first interval G1 is effectively avoided, and a problem of a decrease in aperture ratio caused by disposing the via holes K in a manner of increasing the first interval G1 is also avoided, so that the manner of disposing the via holes K is not only beneficial to increasing the aperture ratio of the display device 200, but also beneficial to increasing the accuracy of signal transmission between the touch electrodes 20 and the touch signal lines 30.

It should be noted that, for the embodiments of the display device 200 provided in the embodiments of the present application, reference may be made to the embodiments of the display panel described above, and repeated descriptions are omitted. The apparatus provided herein may be embodied as: any product or component with practical functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.

In summary, the display panel and the display device provided by the invention at least achieve the following beneficial effects:

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display panel, comprising:

2. The display panel according to claim 1, further comprising a substrate base plate and a plurality of bridge bridges, wherein the touch signal line is located between the touch electrode and the substrate base plate in a direction perpendicular to a plane of the substrate base plate, and the bridge bridges are located on a side of the touch electrode away from the substrate base plate;

the through holes form a plurality of through hole groups, each through hole group respectively comprises a first through hole and a second through hole, and the first through hole and the second through hole in the same through hole group are positioned in the same pixel interval; the same touch signal line is electrically connected with the bridge through the first via hole in the same via hole group, and the touch electrode corresponding to the touch signal line is electrically connected with the same bridge through the second via hole in the same via hole group.

3. The display panel according to claim 2, wherein the same touch signal line is electrically connected to the same touch electrode through a plurality of via groups.

4. The display panel of claim 3, wherein the sub-pixels form a plurality of sub-pixel rows, the sub-pixels in the sub-pixel rows being arranged along the first direction;

and at least one sub-pixel row is arranged between any two adjacent through hole groups in the plurality of through hole groups corresponding to the same touch signal line along the extending direction of the touch signal line.

5. The display panel according to claim 2, wherein the arrangement direction of the first via hole and the second via hole in the same via hole group intersects with the first direction.

6. The display panel according to claim 2, wherein the same touch electrode is electrically connected to at least two touch signal lines.

7. The display panel of claim 6, wherein the sub-pixels form a plurality of sub-pixel columns, the sub-pixels in the sub-pixel columns being arranged along the second direction; at least two adjacent touch signal lines corresponding to the same touch electrode are spaced by at least two pixel columns between the orthographic projections of the light-emitting surface.

8. The display panel according to claim 1, wherein along the first direction, the fourth color sub-pixel corresponds to a pixel opening having a width smaller than a width of a pixel opening corresponding to any one of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel.

9. The display panel according to claim 1, wherein the pixel interval not adjacent to the fourth color sub-pixel along the first direction is a second interval, and a width of the second interval is greater than a width of the first interval.

10. The display panel of claim 1, wherein the pixel spacing along the first direction that is not adjacent to the fourth color sub-pixel is a second spacing comprising a first sub-spacing and a second sub-spacing; along the first direction, the first sub-interval is located between the first color sub-pixel and the second color sub-pixel, and the second sub-interval is located between the second color sub-pixel and the third color sub-pixel;

the orthographic projections of the via holes on the light-emitting surface are all located within the orthographic projection range of the first sub-interval on the light-emitting surface, or the orthographic projections of the via holes on the light-emitting surface are all located within the orthographic projection range of the second sub-interval on the light-emitting surface.

11. The display panel according to claim 1, wherein the first, second, third and fourth color sub-pixels are red, green, blue and white sub-pixels, respectively.

12. The display panel according to claim 1, wherein the sub-pixels form a plurality of sub-pixel rows, and the sub-pixels in the sub-pixel rows are arranged along the first direction;

in any two adjacent sub-pixel rows along the second direction, any two adjacent sub-pixels along the second direction have different colors.

13. A display device, comprising: comprising a display panel as claimed in any one of claims 1 to 12.