CN116107111A - Display panel and display device - Google Patents

Abstract

The invention discloses a display panel and a display device, wherein the display panel comprises an array substrate, a color film substrate arranged opposite to the array substrate and a liquid crystal layer arranged between the array substrate and the color film substrate, the array substrate is positioned at one side of the display panel close to the external environment, a pixel electrode is arranged on the array substrate, a common electrode matched with the pixel electrode is arranged on the color film substrate, and the alignment direction of one side of the liquid crystal layer close to the array substrate is mutually perpendicular to the alignment direction of one side of the liquid crystal layer close to the color film substrate; the array substrate is also provided with a touch electrode and a touch signal wire, the touch electrode and the touch signal wire are both positioned on one side of the pixel electrode far away from the liquid crystal layer, and the touch electrode is electrically connected with the touch signal wire; the color film substrate is also provided with a reflection layer which is arranged on the whole surface, and the reflection layer is positioned on one side of the common electrode, which is far away from the liquid crystal layer. Therefore, the NT type display panel In the In-cell touch mode is realized, and meanwhile, the display can be performed by utilizing ambient light, so that the display power consumption is reduced.

Description

Display panel and display device

technical field

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

Background technique

With the continuous advancement of intelligent interaction technology, touch display panels have gradually spread in people's lives. The touch operation mode has greatly improved the convenience for people to operate electronic devices, and has also brought people a new way of interacting with electronic devices. A whole new way.

The TN type display device is a kind of display panel that appeared earlier, its technology is relatively mature, the yield rate of the product is high, and the failure rate is low. As shown in FIGS. 1 and 2 , the TN display device includes an array substrate 11 , a color filter substrate 12 opposite to the array substrate 11 , and a liquid crystal layer 13 located between the array substrate 11 and the color filter substrate 12 . A pixel electrode 111 is provided, and a common electrode 121 is provided on the color filter substrate 12. By controlling the voltage on the pixel electrode 111, the pixel electrode 111 and the common electrode 121 are controlled to form a vertical electric field (E1) to realize gray scale control. Since a vertical electric field is formed between the pixel electrode 111 and the common electrode 121, the In-cell touch mode cannot be realized, that is, the touch electrode cannot be arranged on the array substrate 11. If the touch electrode is arranged on the array substrate 11, then It will interfere with the pixel electrode 111 and the common electrode 121, or the touch function cannot be realized, or the display quality is poor. Therefore, in a TN display device, the touch electrodes are usually arranged on the side of the color filter substrate 12 away from the liquid crystal layer 13 . The touch electrodes generally include the touch sensing electrodes 141 and the touch receiving electrodes 142 , and an insulating layer is required to separate them. Therefore, the manufacturing process of the existing TN type display device is relatively complicated and thick.

The reflective display device is a new type of display device that has just appeared recently. This kind of display device does not need to be equipped with a backlight module, and directly uses ambient light as a light source to realize the display of the picture, which greatly reduces the power consumption of the display panel. However, the existing TN-type display devices usually need to be used with a backlight module, and the power consumption of the display is relatively high.

Contents of the invention

In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a display panel and a display device to solve the problem that the TN type display device in the prior art cannot realize the In-cell touch mode and the display power consumption is relatively high. The problem.

The object of the present invention is achieved through the following technical solutions:

The present invention provides a display panel, comprising an array substrate, a color filter substrate disposed opposite to the array substrate, and a liquid crystal layer arranged between the array substrate and the color filter substrate, the array substrate is located on the display On the side of the panel close to the external environment, the array substrate is defined by a plurality of scanning lines and a plurality of data lines insulated from each other to form a plurality of pixel units, and each of the pixel units is provided with a thin film transistor and a pixel electrode. The pixel electrode is electrically connected to the data line adjacent to the thin film transistor through the thin film transistor, the color filter substrate is provided with a common electrode matched with the pixel electrode, and the liquid crystal layer is close to the array The alignment direction on one side of the substrate is perpendicular to the alignment direction on the side close to the color filter substrate;

The side of the array substrate facing the liquid crystal layer is also provided with touch electrodes and touch signal lines, and the touch electrodes and the touch signal lines are located on the side of the pixel electrodes away from the liquid crystal layer. , the touch electrode is electrically connected to the touch signal line;

The color filter substrate is further provided with a reflective layer disposed on the entire surface, and the reflective layer is located on a side of the common electrode away from the liquid crystal layer.

Further, the touch signal lines and the scan lines are located in different layers and are insulated from each other, and the extension direction of the touch signal lines is parallel to the extension direction of the scan lines or the data lines.

Further, the touch signal lines and the scan lines are located on the same layer and are insulated from each other, and the extension direction of the touch signal lines and the extension direction of the scan lines are parallel to each other.

Further, the touch signal line is located between two adjacent rows or two adjacent columns of the pixel units.

Further, the array substrate is also provided with a single-sided reflective grid close to the liquid crystal layer, the single-sided reflective grid is located at the periphery of the pixel unit, and the reflective surface of the single-sided reflective grid faces the side of the liquid crystal layer.

Further, the scanning lines, the data lines and the touch signal lines are all made of single-sided reflective metal, and the reflective surfaces of the scanning lines, the data lines and the touch signal lines all face the One side of the liquid crystal layer.

Further, a color-resist layer is further provided on the color filter substrate, and the color-resist layer is located on the surface of the reflective layer facing the liquid crystal layer.

Further, the color filter substrate is also provided with a raised structure layer, the raised structure layer is provided with a plurality of first raised structures, and the reflective layer is located on the raised structure layer facing the liquid crystal layer. The surface of the reflective layer forms a second raised structure at a position corresponding to the first raised structure.

Further, the liquid crystal layer includes liquid crystal molecules and dye molecules, and the liquid crystal molecules and the dye molecules are mixed with each other.

The present application also provides a display device, including the above-mentioned display panel.

The beneficial effect of the present invention is that: by setting the array substrate on the side of the display panel close to the external environment, the touch electrodes and the touch signal lines are set on the side of the array substrate facing the liquid crystal layer, and the touch electrodes and the touch signal lines are set On the side of the pixel electrode away from the liquid crystal layer, thereby realizing the NT-type display panel of the In-cell touch mode, and the touch electrode and the touch signal line will not shield the vertical electric field formed between the pixel electrode and the common electrode. It can shield the influence of the external electric field on the vertical electric field formed between the pixel electrode and the common electrode; at the same time, the reflective layer is set on the side of the common electrode away from the liquid crystal layer, thereby realizing a reflective NT display panel, which can be displayed by using ambient light , no backlight is required, display power consumption is reduced, and the reflective layer will not shield the vertical electric field formed between the pixel electrode and the common electrode, but can shield the influence of the external electric field on the vertical electric field formed between the pixel electrode and the common electrode.

Description of drawings

FIG. 1 is a schematic structural diagram of a TN display panel in a bright state in the prior art;

FIG. 2 is a schematic structural diagram of a TN display panel in a dark state in the prior art;

FIG. 3 is a schematic structural diagram of a display panel in a dark state in Embodiment 1 of the present invention;

Fig. 4 is one of the schematic diagrams of the planar structure of touch electrodes and touch signal lines in Embodiment 1 of the present invention

5 is the second schematic diagram of the planar structure of the touch electrodes and touch signal lines in the first embodiment of the present invention;

6 is a schematic plan view of the array substrate in Embodiment 1 of the present invention;

Fig. 7 is a schematic plan view of a single-sided reflective grid in Embodiment 1 of the present invention;

8 is a schematic structural view of the display panel in the bright state in Embodiment 1 of the present invention;

9 is a schematic diagram of the reflection effect between the reflective layer and the color resist layer at the first distance in the comparative example of the present invention;

10 is a schematic diagram of the reflection effect between the reflective layer and the color resist layer at the second distance in the comparative example of the present invention;

Figure 11 is a schematic diagram of the reflection effect when there is no single-sided reflective grid in the comparative example of the present invention;

Fig. 12 is a schematic diagram of the reflection effect of the single-sided reflective grid in Embodiment 1 of the present invention;

13 is a schematic structural diagram of the display panel in the dark state in Embodiment 2 of the present invention;

14 is a schematic plan view of the touch electrodes and touch signal lines in Embodiment 2 of the present invention;

15 is a schematic structural view of the display panel in the bright state in Embodiment 2 of the present invention;

16 is a schematic structural diagram of the display panel in the dark state in Embodiment 3 of the present invention;

FIG. 17 is a schematic structural diagram of a display panel in a bright state in Embodiment 3 of the present invention.

Detailed ways

In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, in conjunction with the drawings and preferred embodiments, the specific implementation methods, structures, features and features of the display panel and display device proposed according to the present invention will be described below. Efficacy, detailed as follows:

[Example 1]

FIG. 3 is a schematic structural diagram of a display panel in a dark state in Embodiment 1 of the present invention. FIG. 4 is one of the planar structural diagrams of touch electrodes and touch signal lines in Embodiment 1 of the present invention. FIG. 5 is the second schematic diagram of the planar structure of the touch electrodes and the touch signal lines in the first embodiment of the present invention. FIG. 6 is a schematic plan view of the array substrate in Embodiment 1 of the present invention. Fig. 7 is a schematic plan view of the single-sided reflective grid in Embodiment 1 of the present invention. FIG. 8 is a schematic structural diagram of a display panel in a bright state in Embodiment 1 of the present invention.

As shown in FIGS. 3 to 8 , a display panel provided by Embodiment 1 of the present invention includes an array substrate 21 , a color filter substrate 22 disposed opposite to the array substrate 21 , and a color filter substrate 22 disposed between the array substrate 21 and the color filter substrate 22 . The liquid crystal layer 23. Wherein, the array substrate 21 is located on the side of the display panel close to the external environment, that is, the array substrate 21 is located on the side of the display panel close to the user; the color filter substrate 22 is located on the side of the display panel away from the external environment, that is, the color filter substrate 22 is located on the display panel. The side of the panel facing away from the user.

The liquid crystal molecules in the liquid crystal layer 23 are positive liquid crystal molecules (liquid crystal molecules with positive dielectric anisotropy). As shown in FIG. That is, the positive liquid crystal molecules in the liquid crystal layer 23 are parallel to the color filter substrate 22 and the array substrate 21 . The alignment direction of the liquid crystal layer 23 on the side close to the array substrate 21 and the alignment direction on the side close to the color filter substrate 22 are perpendicular to each other, that is, the alignment direction of the alignment layer on the side of the color filter substrate 22 and the alignment direction of the alignment layer on the side of the array substrate 21 are perpendicular to each other, and the liquid crystal molecules in the liquid crystal layer 23 are twisted from the side of the array substrate 21 to the side of the color filter substrate 22 to realize a TN display mode.

As shown in FIG. 3 and FIG. 6 , on the side of the array substrate 21 facing the liquid crystal layer 23, a plurality of scanning lines 1 and a plurality of data lines 2 are mutually insulated and intersected to define a plurality of pixel units P, and each pixel unit P A thin film transistor 3 and a pixel electrode 213 are provided, and the pixel electrode 213 is electrically connected to the data line 2 adjacent to the thin film transistor 3 through the thin film transistor 3 . Wherein, the thin film transistor 3 includes a gate 31, an active layer 32, a source 33 and a drain 34, the gate 31 is located on the same layer as the scan line 1 and is electrically connected, and the gate 31 and the active layer 32 are insulated by the gate The layers are separated, the source electrode 33 is located on the same layer as the data line 2 and is electrically connected, and the drain electrode 34 is electrically connected to the pixel electrode 213 through a contact hole.

As shown in FIGS. 3 to 5 , the side of the array substrate 21 facing the liquid crystal layer 23 is also provided with a touch electrode 212 and a touch signal line 211 . layer 23, so that the touch electrode 212 and the touch signal line 211 will not shield the vertical electric field formed between the pixel electrode 213 and the common electrode 224, but can shield the external electric field between the pixel electrode 213 and the common electrode 224. The effect of the vertical electric field formed. One end of the touch signal line 211 is electrically connected to the touch electrode 212, and the other end of the touch signal line 211 is electrically connected to the touch chip. Apply a touch signal. Wherein, the touch electrodes 212 and the touch signal lines 211 are located in different layers, and are electrically connected through contact holes. Preferably, the touch signal line 211 is arranged on the surface of the array substrate 21 facing the liquid crystal layer 23 and is in direct contact with the surface of the array substrate 21, so as to prevent the touch signal on the touch signal line 211 from interacting with the touch signal on the thin film transistor 3 or the pixel electrode 213. Electrical signal interference. Moreover, the touch electrodes 212 and the touch signal lines 211 are arranged on the array substrate 21 , and a FPC (flexible circuit board) can be used with the gate driving circuit or the source driving circuit on the array substrate 21 , which saves FPC materials.

Further, the touch electrode 212 corresponds to a plurality of pixel units P, that is, the projection of the touch electrode 212 on the array substrate 21 covers a plurality of pixel units P, as shown in FIG. 5 , each touch electrode 212 is connected to 3* 6 pixel units P correspond to each other.

In this embodiment, the touch signal lines 211 and the scan lines 1 are located in different layers and are insulated from each other, and the extending direction of the touch signal lines 211 and the extending direction of the data lines 2 are parallel to each other. Preferably, the touch signal line 211 is located between two adjacent columns of pixel units P, and is aligned with the data line 2 in the projection direction of the array substrate 21, so as to reduce or prevent the touch signal line 211 from blocking light, so as to The penetration of light is affected. As shown in FIG. 6, the present embodiment adopts the array substrate 21 with a double gate structure, which can reduce the number of data lines 2. Therefore, part of the touch signal lines 211 and the data lines 2 are aligned with each other in the projection direction of the array substrate 21; In a conventional array substrate 21 with a single gate structure, each touch signal line 211 and one data line 2 are aligned with each other in the projection direction of the array substrate 21 . Certainly, in other embodiments, the extending direction of the touch signal line 211 may also be parallel to the extending direction of the scanning line 1 , and the touch signal line 211 is located between two adjacent rows of pixel units P.

As shown in FIG. 3 , the color filter substrate 22 is provided with a reflective layer 222 arranged on the entire surface and a common electrode 224 matched with the pixel electrode 213. The reflective layer 222 is located on the side of the common electrode 224 away from the liquid crystal layer 23, so that the reflective layer 222 will not shield the vertical electric field formed between the pixel electrode 213 and the common electrode 224 , but can shield the influence of the external electric field on the vertical electric field formed between the pixel electrode 213 and the common electrode 224 . By disposing the reflective layer 222 on the entire surface of the color filter substrate 22, the display panel can use ambient light to display without the need for a backlight source, reducing display power consumption.

Further, the color filter substrate 22 is also provided with a color-resist layer 223, the color-resist layer 223 is located on the surface of the reflective layer 222 facing the liquid crystal layer 23 and is in direct contact with the surface of the reflective layer 222, and the common electrode 224 is located on the color-resist layer 223 facing the liquid crystal layer 23 and in direct contact with the surface of the color resist layer 223 . Wherein, the color resistance layer 223 includes three color resistances of red (R), green (G) and blue (B), respectively corresponding to the pixel units P of three colors of red (R), green (G), and blue (B). Figure 9 is a schematic diagram of the reflection effect between the reflective layer and the color-resist layer at the first distance in the comparative example of the present invention, and Figure 10 is a reflection effect at the second distance between the reflective layer and the color-resist layer in the comparative example of the present invention Schematic diagram, as shown in Figure 9 and Figure 10, when the color resist layer 223 and the reflective layer 222 have a gap, wherein the first gap H1 is smaller than the second gap H2, it can be seen from the figure that the larger the gap is, the greater the optical path of the reflected light increase, for example, the green light transmitted through the green pixel unit will be reflected to the blue pixel unit or the red pixel unit, thereby being absorbed by the blue color resistance or the red color resistance, reducing the utilization rate of ambient light. Therefore, the smaller the gap between the color-resist layer 223 and the reflective layer 222, the higher the utilization rate of ambient light. Therefore, in this embodiment, the color-resist layer 223 is arranged on the surface of the reflective layer 222 facing the liquid crystal layer 23 and is compatible with the reflective layer 223. The surface of the layer 222 is in direct contact, which can maximize the utilization rate of ambient light.

Further, the color filter substrate 22 is also provided with a raised structure layer 225, and a plurality of first raised structures are arranged on the raised structure layer 225, and the reflection layer 222 is located on the surface of the raised structure layer 225 facing the liquid crystal layer 23, reflecting The positions on the layer 222 corresponding to the first protrusion structures form the second protrusion structures. The reflective layer 222 is provided with an uneven structure by setting the convex structure layer 225, so that the reflective layer 222 can achieve diffuse reflection, thereby improving the softness of reflected light, reducing irritation to eyes, and improving display effect.

In this embodiment, a grid-shaped black matrix 221 is also provided on the color filter substrate 22, and the black matrix 221 is located on the side of the reflective layer 222 away from the liquid crystal layer 23. , play a counterpoint role. Wherein, the raised structure layer 225 covers the black matrix 221 and can planarize the black matrix 221 .

In this embodiment, as shown in FIG. 3 and FIG. 7, the array substrate 21 is also provided with a single-sided reflective grid 214 close to the liquid crystal layer 23. The single-sided reflective grid 214 is located at the periphery of the pixel unit P. The single-sided reflective grid The reflective surface of 214 faces one side of the liquid crystal layer 23, and the single-sided reflective grid 214 can improve the utilization rate of reflected light. Figure 11 is a schematic diagram of the reflection effect when there is no single-sided reflective grid in the comparative example of the present invention. layer and is absorbed by the scanning line 1, the data line 2 or the touch signal line 211; FIG. 12 is a schematic diagram of the reflection effect of the single-sided reflective grid in Embodiment 1 of the present invention. As shown in FIG. 12, this embodiment sets a single-sided reflective grid After the grid 214, this part of the reflected light will be reflected again by the single-sided reflective grid 214 and directed to the reflective layer 222 for reuse, thereby improving the utilization rate of the reflected light.

Further, the scanning lines 1, the data lines 2 and the touch signal lines 211 are all made of single-sided reflective metal, and the reflective surfaces of the scanning lines 1, the data lines 2 and the touch signal lines 211 are all facing one side of the liquid crystal layer 23, Thus, the utilization rate of reflected light is further improved. Among them, the scanning line 1, the data line 2, the touch signal line 211 and the single-sided reflective grid 214 are all made of three-layer metal of molybdenum oxide (MoOx), aluminum (Al) and molybdenum (Mo). Aluminum is located on the side closest to the liquid crystal layer 23 among the three-layer metals.

Wherein, the color filter substrate 22 and the array substrate 21 can be made of materials such as glass, acrylic and polycarbonate. The material of the common electrode 224 , the pixel electrode 213 and the touch electrode 212 can be transparent metal such as indium tin oxide (ITO) or indium zinc oxide (IZO).

In this embodiment, as shown in FIG. 3 , the liquid crystal layer 23 includes liquid crystal molecules 231 and dye molecules 232 , and the liquid crystal molecules 231 and the dye molecules 232 are mixed with each other. Wherein, the light-absorbing ability of the long axis of the dye molecule 232 is greater than that of the short axis, that is, the light-absorbing ability of the long axis of the dye molecule 232 is strong, and the light-absorbing ability of the short axis is weak. By mixing dye molecules 232 in the liquid crystal layer 23 and aligning them in a twisted state, the display panel is initially in a dark state, and reflective display can be realized without polarizers and 1/4 wave plates. Certainly, in other embodiments, the dye molecules 232 may not be arranged in the liquid crystal layer 23 , but a polarizer and a quarter wave plate are arranged on the side of the array substrate 21 away from the liquid crystal layer 23 .

The present application also provides a display device, including the above-mentioned display panel.

[Example 2]

FIG. 13 is a schematic structural diagram of a display panel in a dark state in Embodiment 2 of the present invention. FIG. 14 is a schematic plan view of the touch electrodes and touch signal lines in Embodiment 2 of the present invention. FIG. 15 is a schematic structural diagram of the display panel in the bright state in Embodiment 2 of the present invention. As shown in Fig. 13 to Fig. 15, the display panel and display device provided by Embodiment 2 of the present invention are basically the same as the display panel and display device in Embodiment 1 (Fig. 3 to Fig. 8), the difference is that in this embodiment In an example, the touch signal line 211 and the scan line 1 are located on the same layer and are insulated and spaced apart from each other. The touch signal line 211 and the scan line 1 are etched from the same metal film, thereby saving photomasks and simplifying the structure and manufacturing process of the display panel. The process can also reduce the thickness of the display panel.

Further, the extending direction of the touch signal line 211 is parallel to the extending direction of the scanning line 1 , and the touch signal line 211 is located between two adjacent rows of pixel units P. Since the touch signal lines 211 and the scan lines 1 are located on the same layer, the extending direction of the touch signal lines 211 cannot be parallel to the extending direction of the data lines 2 , otherwise the touch signal lines 211 and the scan lines 1 will be short-circuited.

Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

[Embodiment three]

FIG. 16 is a schematic structural diagram of a display panel in a dark state in Embodiment 3 of the present invention. FIG. 17 is a schematic structural diagram of a display panel in a bright state in Embodiment 3 of the present invention. As shown in Fig. 16 and Fig. 17, the display panel and display device provided by Embodiment 3 of the present invention are the same as the display panel and display device in Embodiment 1 (Fig. 3 to Fig. 8) or Embodiment 2 (Fig. 13 to Fig. 15) Basically the same, the difference is that in this embodiment, the color filter substrate 22 does not need to be provided with a black matrix 221, because the red light passing through the red pixel unit cannot pass through other pixel units after being reflected, and will be detected by other pixel units. The blue color resistance or green color resistance of the pixel unit absorbs, therefore, the black matrix 221 can be arranged differently on the color filter substrate 22, thereby simplifying the structure of the color filter substrate 22, saving the mask and process technology, and reducing the thickness of the display panel.

Those skilled in the art should understand that the rest of the structure and working principle of this embodiment are the same as those of Embodiment 1 or Embodiment 2, and will not be repeated here.

In this paper, the orientation words such as up, down, left, right, front, and back involved are defined by the positions of the structures in the drawings and the positions between the structures, just to express the technical solution. Clear and convenient. It should be understood that the use of the location words should not limit the scope of protection claimed in this application. It should also be understood that the terms "first" and "second" used herein are only used to distinguish names, and are not used to limit the number and order.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, may use the technical content disclosed above to make some changes or modifications, which are equivalent embodiments with equivalent changes, but if they do not depart from the technical solution of the present invention, according to Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence still fall within the scope of protection of the technical solutions of the present invention.

Claims (10)

1. A display panel, characterized in that it comprises an array substrate (21), a color filter substrate (22) arranged opposite to the array substrate (21), and a color filter substrate (22) arranged between the array substrate (21) and the color filter The liquid crystal layer (23) between the substrates (22), the array substrate (21) is located on the side of the display panel close to the external environment, and the array substrate (21) is composed of a plurality of scanning lines (1) and a plurality of The data lines (2) are mutually insulated and intersect to define a plurality of pixel units (P), and each of the pixel units (P) is provided with a thin film transistor (3) and a pixel electrode (213), and the pixel electrode (213) The thin film transistor (3) is electrically connected to the data line (2) adjacent to the thin film transistor (3), and the color filter substrate (22) is provided with a common electrode (224), the alignment direction of the liquid crystal layer (23) on the side close to the array substrate (21) and the alignment direction on the side close to the color filter substrate (22) are perpendicular to each other; The side of the array substrate (21) facing the liquid crystal layer (23) is also provided with a touch electrode (212) and a touch signal line (211), and the touch electrode (212) and the touch signal line The lines (211) are located on the side of the pixel electrode (213) away from the liquid crystal layer (23), and the touch electrode (212) is electrically connected to the touch signal line (211); The color filter substrate (22) is further provided with a reflective layer (222) arranged on the entire surface, and the reflective layer (222) is located on the side of the common electrode (224) away from the liquid crystal layer (23). 2. The display panel according to claim 1, wherein the touch signal line (211) and the scan line (1) are located in different layers and are insulated and spaced apart from each other, and the touch signal line (211) ) is parallel to the extending direction of the scanning line (1) or the data line (2). 3. The display panel according to claim 1, characterized in that, the touch signal lines (211) and the scan lines (1) are located on the same layer and are insulated from each other, and the touch signal lines (211 ) and the extending direction of the scanning line (1) are parallel to each other. 4. The display panel according to claim 1, characterized in that, the touch signal line (211) is located between two adjacent rows or two adjacent columns of the pixel units (P). 5. The display panel according to claim 1, characterized in that, the array substrate (21) is also provided with a single-sided reflective grid (214) close to the liquid crystal layer (23), and the single-sided reflective grid The grid (214) is located on the periphery of the pixel unit (P), and the reflective surface of the single-sided reflective grid (214) faces one side of the liquid crystal layer (23). 6. The display panel according to claim 1, characterized in that, the scanning lines (1), the data lines (2) and the touch signal lines (211) are all made of single-sided reflective metal, The reflective surfaces of the scanning lines (1), the data lines (2) and the touch signal lines (211) all face one side of the liquid crystal layer (23). 7. The display panel according to claim 1, characterized in that a color-resist layer (223) is further provided on the color filter substrate (22), and the color-resist layer (223) is located on the reflective layer (222) towards the surface of the liquid crystal layer (23). 8. The display panel according to claim 1, characterized in that, the color filter substrate (22) is further provided with a raised structure layer (225), and the raised structure layer (225) is provided with a plurality of The first raised structure, the reflecting layer (222) is located on the surface of the raised structure layer (225) facing the liquid crystal layer (23), and the reflecting layer (222) corresponds to the first raised structure The position forms the second raised structure. 9. The display panel according to any one of claims 1-8, characterized in that, the liquid crystal layer (23) comprises liquid crystal molecules (231) and dye molecules (232), and the liquid crystal molecules (231) and the The dye molecules (232) are mixed with each other. 10. A display device, comprising the display panel according to any one of claims 1-9.

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