CN114220936B - Display panel and display device - Google Patents

Abstract

The embodiment of the invention discloses a display panel and a display device. The display panel includes: a substrate; a plurality of light-emitting structures, the light-emitting structures are arranged on the substrate, and each light-emitting structure includes a first electrode layer, a light-emitting layer and a second electrode layer that are stacked in sequence; wherein the first electrode layer is arranged on On the side of the light-emitting layer close to the substrate, both the first electrode layer and the second electrode layer include a light-transmitting area and a light-impermeable area. The light-transmitting area of the first electrode layer is in the vertical projection of the light-emitting layer and the light-transmitting area of the second electrode layer. The vertical projections of the light areas on the light-emitting layer do not overlap, so that the light emitted by the light-emitting layer can pass through both the light-transmitting area of the first electrode layer and the light-transmitting area of the second electrode layer, so that both sides of the display panel can display picture. The technical solution provided by the embodiment of the present invention can realize double-sided display and has a simple process.

Description

A display panel and display device

Technical field

Embodiments of the present invention relate to the field of display technology, and in particular, to a display panel and a display device.

Background technique

With the development of display technology, people have higher and higher requirements for the performance of display panels. In particular, the display performance of display panels has always been one of the goals that consumers and panel manufacturers are constantly pursuing. At present, how to display double-sided display has become an urgent goal for manufacturers.

Contents of the invention

Embodiments of the present invention provide a display panel and a display device to achieve double-sided display with simple process.

In order to achieve the above technical objectives, a first aspect of embodiments of the present invention provides a display panel, including:

substrate;

A plurality of light-emitting structures, the light-emitting structures are arranged on the substrate, and each light-emitting structure includes a first electrode layer, a light-emitting layer and a second electrode layer that are stacked in sequence;

Wherein, the first electrode layer is disposed on the side of the light-emitting layer close to the substrate. Both the first electrode layer and the second electrode layer include a light-transmitting area and a light-impermeable area. The light-transmitting area of the first electrode layer is vertical to the light-emitting layer. The projection does not overlap with the vertical projection of the light-transmitting area of the second electrode layer on the light-emitting layer, so that the light emitted by the light-emitting layer can pass through both the light-transmitting area of the first electrode layer and the light-transmitting area of the second electrode layer. Display images on both sides of the display panel.

In an optional embodiment, the light-transmitting area is formed with a plurality of patterned light-transmitting structures;

The light-transmitting structure of the first electrode layer includes a hole structure opened on the first electrode layer, and/or the light-transmitting structure of the second electrode layer includes a hole opened on the second electrode layer. structure; or

The light-transmitting structure of the first electrode layer includes grooves provided on the first electrode layer, and/or the light-transmitting structure of the second electrode layer includes grooves provided on the second electrode layer. Groove, the groove is filled with light-transmitting material.

In an optional embodiment, the light-transmitting material includes light-transmitting conductive material.

In an optional embodiment, the groove penetrates the first electrode layer and/or the second electrode layer.

In an optional embodiment, the size of the light-transmitting area of the first electrode layer is the same as the size of the light-transmitting area of the second electrode layer.

In an optional embodiment, the density of the light-transmitting structure of the first electrode layer is the same as the density of the light-transmitting structure of the second electrode layer.

In an optional embodiment, the arrangement of the light-transmitting structures of the first electrode layer is the same as the arrangement of the light-transmitting structures of the second electrode layer; wherein the arrangement of the light-transmitting structures is a row-column arrangement or a staggered arrangement. Either cloth or ring arrangement.

In an optional embodiment, the pore diameter of the pore structure is 0.1-10um; the distribution density of the pore structure is 1-100 per ^100um2 .

In an optional embodiment, the shape of the light-transmitting structure includes at least one of a circle, a square, an ellipse, and a rhombus.

In an optional embodiment, the material used in the light-transmitting area includes a light-transmitting conductive material; and the material used in the opaque area includes an opaque metal material.

In an optional embodiment, the display panel further includes:

a pixel circuit layer, which is disposed between the substrate and the light-emitting structure;

The pixel circuit layer includes an opaque structure, and the vertical projection of the opaque structure on the substrate does not overlap with the vertical projection of the light-transmitting area of the first electrode layer on the substrate.

In an optional embodiment, the display panel further includes:

a first polarizer and a second polarizer;

The first polarizer is disposed on a side of the light-emitting structure away from the substrate, and the second polarizer is disposed on a side of the substrate away from the light-emitting structure.

In an optional embodiment, the display panel further includes:

a first light extraction layer and a second light extraction layer;

The first light extraction layer is arranged between the light emitting structure and the first polarizer, and the second light extraction layer is arranged between the substrate and the light emitting structure.

In an optional embodiment, the display panel further includes:

a first cover plate, a second cover plate, a first touch layer and a second touch layer;

The first cover is disposed on the side of the first polarizer away from the light-emitting structure, and the first touch layer is disposed between the light-emitting structure and the first cover;

The second cover is disposed on a side of the second polarizer away from the substrate, and the second touch layer is disposed between the light-emitting structure and the second cover.

A second aspect of the embodiments of the present invention further provides a display device, including the display panel as described in any embodiment of the first aspect of the present invention.

In the embodiment of the present invention, the first electrode layer and the second electrode layer are respectively provided with a light-transmitting area and a light-impermeable area. The vertical projection of the light-transmitting area of the first electrode layer on the light-emitting layer is exactly the same as the light-emitting area of the second electrode layer. The vertical projections of the layers do not overlap, so that the light is reflected from the opaque area of the second electrode layer and then transmitted through the light-transmitting area of the first electrode layer. It also allows the light to be reflected from the opaque area of the first electrode layer. After reflection, it is transmitted through the light-transmitting area of the second electrode layer, so that the light emitted by the light-emitting layer can pass through both the light-transmitting area of the first electrode layer and the light-transmitting area of the second electrode layer, making the display panel The screen is displayed on both sides of the screen, thereby achieving double-sided display. Moreover, by setting a light-transmitting area on the first electrode layer and a light-transmitting area on the second electrode layer, double-sided display can be achieved without other structural settings and the process is simple.

Description of drawings

Figure 1 is a schematic structural diagram of a display panel provided by an embodiment of the present invention;

Figure 2 is a schematic diagram of a light-transmitting area provided by an embodiment of the present invention;

Figure 3 is a schematic diagram of another light-transmitting area provided by an embodiment of the present invention;

Figure 4 is a schematic diagram of another light-transmitting area provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another display panel provided by an embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. It can be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for convenience of description, only some but not all structures related to the present invention are shown in the drawings.

An embodiment of the present invention provides a display panel. FIG. 1 is a schematic structural diagram of a display panel provided by an embodiment of the present invention. Referring to FIG. 1 , the display panel includes: a substrate 10 and a plurality of light-emitting structures 20 ; the light-emitting structures 20 are provided on the substrate 10 , and each light-emitting structure 20 includes a first electrode layer 21 , a light-emitting layer 22 and a second electrode that are stacked in sequence. Layer 23; wherein, the first electrode layer 21 is disposed on the side of the light-emitting layer 22 close to the substrate 10. Both the first electrode layer 21 and the second electrode layer 23 include a light-transmitting area and an opaque area. The first electrode layer 21 The vertical projection of the light-transmitting area 210 on the light-emitting layer 22 does not overlap with the vertical projection of the light-transmitting area 230 of the second electrode layer 23 on the light-emitting layer 22, so that the light emitted by the light-emitting layer 22 passes through the transparent area of the first electrode layer 21. Both the light area 210 and the light-transmitting area 230 of the second electrode layer 23 can transmit, so that images can be displayed on both sides of the display panel.

For example, the first electrode layer 21 is an anode layer, and the second electrode layer 23 is a cathode layer. The size of the area occupied by the light-transmitting region 210 of the first electrode layer 21 in the first electrode layer 21 is the same as or different from the size of the area occupied by the light-transmitting region 230 of the second electrode layer 23 in the second electrode layer 23 . For example, the light-transmitting area 210 of the first electrode layer 21 is one-third of the area of the first electrode layer 21 , and the light-transmitting area 230 of the second electrode layer 23 is one-third of the area of the second electrode layer 23 . Alternatively, the light-transmitting area 210 of the first electrode layer 21 is one-half of the area of the first electrode layer 21 , and the light-transmitting area 230 of the second electrode layer 23 is one-third of the area of the second electrode layer 23 . Moreover, the vertical projection of the light-transmitting area 210 of the first electrode layer 21 on the light-emitting layer 22 does not overlap with the vertical projection of the light-transmitting area 230 of the second electrode layer 23 on the light-emitting layer 22. The light-transmitting area of the first electrode layer 21 does not overlap. The vertical projection of the area 210 on the light-emitting layer 22 overlaps with the vertical projection of the opaque area 240 of the second electrode layer 23 on the light-emitting layer 22 . With this arrangement, light can be transmitted through the light-transmitting area 210 of the first electrode layer 21, and the light-impermeable area 240 of the second electrode layer 23 can reflect light to increase the brightness of the light-emitting area of the first electrode layer 21, and can also The light is transmitted through the light-transmitting area 230 of the second electrode layer 23, and the light-impermeable area 220 of the first electrode layer 21 reflects the light to increase the brightness of the light-emitting area of the first electrode layer 21, so that the light-emitting layer emits light. Light can pass through both the light-transmitting area of the first electrode layer and the light-transmitting area of the second electrode layer, so that images can be displayed on both sides of the display panel, thereby achieving double-sided display. In addition, by providing a light-transmitting area on the first electrode layer 21 and a light-transmitting area on the second electrode layer 23, double-sided display can be achieved without other structural settings and the process is simple.

In this embodiment, a light-transmitting area and a light-impermeable area are provided on the first electrode layer and the second electrode layer. The vertical projection of the light-transmitting area of the first electrode layer on the light-emitting layer is exactly the same as the light-emitting area of the second electrode layer. The vertical projections of the layers do not overlap, so that light can be transmitted through the light-transmitting area of the first electrode layer and the light-transmitting area of the second electrode layer respectively, and the opaque area of the first electrode layer and the opaque area of the second electrode layer The light-transmitting area functions as a reflective electrode to improve the display brightness of the light-transmitting area. Therefore, the light emitted by the light-emitting layer can pass through both the light-transmitting area of the first electrode layer and the light-transmitting area of the second electrode layer, so that images can be displayed on both sides of the display panel, thereby achieving double-sided display. Moreover, by setting a light-transmitting area on the first electrode layer and a light-transmitting area on the second electrode layer, double-sided display can be achieved without other structural settings and the process is simple.

In an optional embodiment, as shown in FIG. 1 , the size of the light-transmitting area 210 of the first electrode layer 21 is the same as the size of the light-transmitting area 230 of the second electrode layer 23 . For example, the size of the light-transmitting area 210 of the first electrode layer 21 is one-third of the area of the first electrode layer, and the size of the light-transmitting area 230 of the second electrode layer 23 is one-third of the area of the second electrode layer 23 . a region. This arrangement ensures that the light transmittance of the light-transmitting area 210 of the first electrode layer 21 is similar to the light transmittance of the light-transmitting area 230 of the second electrode layer 23, thereby making the display effect of the double-sided display similar.

In an optional embodiment, as shown in FIG. 1 , the light-transmitting area 210 of the first electrode layer 21 is half of the first electrode layer 21 , and the light-transmitting area 230 of the second electrode layer 23 is half of the second electrode layer 23 . half area. For example, in the extending direction of the first electrode layer 21 , the first electrode layer 21 is divided into a left half area and a right half area. The light-transmitting area 210 of the first electrode layer 21 may be the right half area of the first electrode layer 21 . Half area, similarly, in the extension direction of the second electrode layer 23, the second electrode layer 23 is divided into a left half area and a right half area. The light-transmitting area 230 of the second electrode layer 23 can be the second electrode layer The left half of 23. With this arrangement, the first electrode layer 21 and the second electrode layer 23 can have the same light transmission area, so as to achieve the same or similar display effect of the double-sided display.

In addition, the light-transmitting area may include multiple sub-light-transmitting areas, and the multiple sub-light-transmitting areas may be arranged at intervals. For example, the total area of all sub-light-transmitting areas is half of the area of the layer in which they are located, so that the first electrode layer 21 and the second electrode layer 23 have the same light-transmitting area to achieve the same display effect of double-sided display.

Figure 2 is a schematic diagram of a light-transmitting area provided by an embodiment of the present invention. Referring to Figures 1 and 2, in an embodiment of the present invention, a plurality of patterned light-transmitting structures are formed in the light-transmitting area; The light-transmitting structure 211 of the first electrode layer 21 includes a hole structure opened on the first electrode layer 21, and/or the light-transmitting structure 231 of the second electrode layer 23 includes a hole structure opened on the second electrode layer 23; Or the light-transmitting structure 211 of the first electrode layer 21 includes grooves provided on the first electrode layer 21 , and/or the light-transmitting structure 231 of the second electrode layer 23 includes grooves provided on the second electrode layer 23 , the groove is filled with light-transmitting material.

The light-transmitting structure includes a hole structure. The hole structure of the first electrode layer 21 and the hole structure of the second electrode layer 23 may have the same or different sizes. The hole structure of the first electrode layer 21 may be formed when the first electrode layer 21 is made. , the hole structure of the second electrode layer 23 can be formed when the second electrode layer 23 is made, and both the hole structure of the first electrode layer 21 and the hole structure of the second electrode layer 23 can transmit light. The materials used in other areas of the light-transmitting area except the hole structure are the same as those used in the opaque area. The hole structure is used as the light-transmitting structure, the process is simple, and the preparation efficiency of the display panel can be improved.

Alternatively, the light-transmitting structure includes grooves. The grooves of the first electrode layer 21 and the grooves of the second electrode layer 23 may have the same or different sizes. The grooves of the first electrode layer 21 may be formed when the first electrode layer 21 is made. , The groove of the second electrode layer 23 can be formed when the second electrode layer 23 is made. The groove is filled with a light-transmitting material, so that light can be transmitted through the light-transmitting material to ensure that the groove is light-transmitting.

Optionally, the light-transmissive material includes a light-transmissive conductive material. Specifically, the light-transmitting material filled in the groove can be a light-transmitting conductive material, which allows the anode and the cathode to have a larger facing area while transmitting light, thereby increasing the amount of carrier injection.

Optionally, the groove penetrates the first electrode layer 21 and/or the second electrode layer 23 . With this arrangement, the grooves penetrating the first electrode layer 21 and/or the second electrode layer 23 can all be made of light-transmitting material, so that the light-transmitting structure can transmit light better.

Optionally, continuing to refer to FIG. 2 , the area of the light-transmitting structure 211 of the first electrode layer 21 is the same as the area of the light-transmitting structure 231 of the second electrode layer 23 ; the density of the light-transmitting structure 211 of the first electrode layer 21 is The density is the same as the light-transmitting structure 231 of the second electrode layer 23 .

Specifically, the areas of the respective light-transmitting structures 211 of the first electrode layer 21 may be the same or different, and the areas of the respective light-transmitting structures 231 of the second electrode layer 23 may be the same or different. The number of the light-transmitting structures 211 of the first electrode layer 21 in the light-transmitting area 210 of the first electrode layer 21 per unit area is the same as the number of the light-transmitting structures 231 of the second electrode layer 23 in the light-transmitting area 230 of the second electrode layer 23 . The number of unit areas is the same, and the area of the light-transmitting structure 211 of the first electrode layer 21 is the same as the area of the light-transmitting structure 231 of the second electrode layer 23 . This arrangement can ensure that the light-transmitting structure 211 of the first electrode layer 21 and the light-transmitting structure 231 of the second electrode layer 23 have the same light transmittance, so that the display effect of the double-sided display is the same.

In addition, the density of the light-transmitting structure 211 of the first electrode layer 21 and the density of the light-transmitting structure 231 of the second electrode layer 23 may also be different. The area of the light-transmitting structure 211 of the first electrode layer 21 is different from that of the second electrode layer 23 . The areas of the light-transmitting structures 231 can also be different, so that the double-sided display has different display effects.

Optionally, continuing to refer to Figure 2, the pore diameter of the pore structure is 0.1-10um; the distribution density of the pore structure is ^1-100 per 100um2.

Specifically, if the diameter of the hole structure is too small, it will affect the light transmittance. If the diameter of the hole structure is too large, the corresponding area of the electrode formed by the first electrode layer 21 and the second electrode layer 23 will be reduced, affecting the amount of carrier injection. Thereby affecting the display effect. Therefore, setting an aperture of appropriate size, with the aperture of each hole structure being 0.1-10um, can prevent the hole structure from being too small and affecting the light transmittance, and the hole structure being too large from affecting the double-sided display effect.

Specifically, continuing to refer to FIG. 2 , the hole structure of the first electrode layer 21 may be evenly distributed in the light-transmitting area 210 of the first electrode layer 21 , or may be unevenly distributed. If the density of the hole structure is too small, the number of holes per unit area will be too small, which also affects the light transmittance. If the density of the hole structure is too high, the gap between adjacent hole structures may be smaller, making it easier to prepare. The problem occurs that the material in the gap between two adjacent hole structures is also patterned, making the preparation process more difficult. The distribution density of the hole structure of the first electrode layer 21 in the light-transmitting area 210 of the first electrode layer 21 is 1-100 per ^100um2 , so that the light-transmitting area 210 of the first electrode layer 21 has enough hole structures. , to ensure the light transmittance of the light-transmitting area 210 of the first electrode layer 21, and at the same time, the density of the hole structure of the light-transmitting area 210 of the first electrode layer 21 will not be too large, and it is not easy for two adjacent hole structures to occur during preparation. The material at the gap is also a matter of patterning, making preparation simple. The hole structure of the second electrode layer 23 may be uniformly distributed in the light-transmitting area 230 of the second electrode layer 23 , or may be unevenly distributed. The distribution of the hole structure of the second electrode layer 23 in the light-transmitting area 230 of the second electrode layer 23 The density is 1-100 per ^100um2 , so that the light-transmitting area 230 of the second electrode layer 23 has enough hole structure to ensure the light transmittance of the light-transmitting area 230 of the second electrode layer 23. At the same time, the second electrode The density of the hole structure in the light-transmitting area 230 of the layer 23 will not be too large, and the problem of patterning of the material in the gap between two adjacent hole structures will not easily occur during preparation, and the preparation is simple.

Optionally, continuing to refer to FIG. 2 , the shape of the light-transmitting structure includes at least one of a circle, a square, an ellipse, and a rhombus. The shape of the light-transmitting structure may be one or more. The shapes of the light-transmitting structure 211 of the first electrode layer 21 and the shape of the light-transmitting structure 231 of the second electrode layer 23 include circles, squares, and ellipses. shape, and at least one of rhombus shape. The above-mentioned shape and structure are simple and easy to prepare, which can further improve the preparation efficiency of the display panel. In addition, the shape of the light-transmitting structure can also be other regular or irregular shapes. FIG. 2 illustrates that the shape of the light-transmitting structure is circular. The shape of the light-transmitting structure shown in FIG. 2 is only a schematic illustration and is not limited here.

Optionally, continuing to refer to FIG. 2 , the arrangement of the light-transmitting structures 211 of the first electrode layer 21 is the same as the arrangement of the light-transmitting structures 231 of the second electrode layer 23 ; wherein, the arrangement of the light-transmitting structures is: Any of row and column arrangement, staggered arrangement and circular arrangement.

Specifically, the light-transmitting structure 211 of the first electrode layer 21 and the light-transmitting structure 231 of the second electrode layer 23 adopt the same arrangement, so that the light-emitting arrangement of the double-sided display is the same, so that the display effect of the double-sided display is similar. . FIG. 3 is a schematic diagram of another light-transmitting area provided by an embodiment of the present invention, and FIG. 4 is a schematic diagram of another light-transmitting area provided by an embodiment of the present invention. Illustratively, with reference to FIGS. 2, 3 and 4, FIG. 2 illustrates that the light-transmitting structures in the light-transmitting area are arranged in rows and columns. For example, the light-transmitting structures 211 of the first electrode layer 21 are arranged in rows and columns. The light-transmitting areas 210 of an electrode layer 21 are arranged in rows and columns. Figure 3 illustrates that the arrangement of the light-transmitting structures is a staggered arrangement, such as a staggered arrangement of holes in adjacent rows or adjacent columns. Figure 4 shows that the light-transmitting structures are arranged in a ring shape. All the light-transmitting structures are arranged to form multiple rings with the same center and different sizes, and each ring has multiple light-transmitting structures. The above various arrangements described in this embodiment are simple to implement and easy to form. In addition, the arrangement of the light-transmitting structures can also be other regular or irregular arrangements, which are not limited here.

Optionally, as shown in FIG. 1 , the material used in the light-transmitting area includes a light-transmitting conductive material; the material used in the opaque area includes an opaque metal material. Specifically, the materials used in the light-transmitting area 210 of the first electrode layer 21 and the light-transmitting area 230 of the second electrode layer 23 include light-transmitting conductive materials, such as ITO, and each position of the light-transmitting area can be light-transmissive, so that it can Improve the light transmittance of the light-transmitting area. The materials used in the light-impermeable area 220 of the first electrode layer 21 and the light-impermeable area 240 of the second electrode layer 23 include opaque metal materials, and may also include alloy materials. For example, the opaque metal material includes at least one of silver, aluminum, copper, or magnesium. For example, the material used in the opaque area is any one of silver, aluminum, copper or magnesium, or an alloy material formed of at least two metals of silver, aluminum, copper or magnesium. The process of using metal materials to prepare the first electrode layer 21 and the second electrode layer 23 is mature, and the preparation process is more reliable. It should be noted that the electrode layer formed of the light-transmitting conductive material in the light-transmitting area and the opaque layer in the opaque area The electrode layers formed of metal materials are electrically connected to each other, and together form the first electrode layer or the second electrode layer.

In another implementation, the light-transmitting conductive material layer is arranged in the light-transmitting area and the light-impermeable area, and the light-impermeable metal material layer is arranged in the light-impermeable area, that is, the light-transmitting conductive material layer in the light-impermeable area and the light-impermeable area are The opaque metal material layers in the light-transmitting area are stacked to ensure the conductive properties of the first electrode layer and the second electrode layer, thereby ensuring the display effect of the double-sided display.

FIG. 5 is a schematic structural diagram of another display panel provided by an embodiment of the present invention. Referring to Figure 5, the display panel also includes a pixel circuit layer 30. The pixel circuit layer 30 is disposed between the substrate 10 and the light-emitting structure 20. The pixel circuit is used to drive the light-emitting structure to emit light; the pixel circuit layer 30 includes an opaque structure. The vertical projection of the opaque structure on the substrate 10 does not overlap with the vertical projection of the light-transmitting area of the first electrode layer 21 on the substrate 10 . By way of example, the opaque structure of the pixel circuit layer 30 includes metal traces such as data lines and scan lines, and metal structures such as capacitor plates, gate electrodes, source electrodes, and drain electrodes of the driving transistors. The vertical projection of the opaque structure on the substrate 10 does not overlap with the vertical projection of the light-transmitting area of the first electrode layer 21 on the substrate 10 , which can prevent the opaque structure from affecting the light emission of the light-emitting structure 20 toward the substrate side. Occlusion affects the display effect.

Optionally, continuing to refer to FIG. 5 , the display panel further includes a first polarizer 41 and a second polarizer 42 ; the first polarizer is disposed on the side of the light-emitting structure 20 away from the substrate 10 , and the second polarizer 42 is disposed on the side of the light-emitting structure 20 away from the substrate 10 . on the side of the substrate 10 away from the light-emitting structure 20 . For example, the materials used in the first polarizer 41 and the second polarizer 42 include electro-optical materials, and the electro-optical materials may be organic electro-optical materials or inorganic electro-optical materials. An encapsulation layer can be provided on the side of the light-emitting structure 20 away from the substrate 10. The first polarizer 41 can be attached to the encapsulation layer, and the second polarizer 42 can be attached to the substrate 10 to ensure both sides of the display panel. display effect.

Optionally, continuing to refer to FIG. 5 , the display panel further includes a first light extraction layer 51 and a second light extraction layer 52 ; the first light extraction layer 51 is disposed between the light-emitting structure 20 and the first polarizer 41 . The two light extraction layers 52 are disposed between the substrate 10 and the light emitting structure 20 . Exemplarily, the first light extraction layer 51 is disposed between the light emitting structure 20 and the packaging layer. The first light extraction layer 51 and the second light extraction layer 52 are used to improve the light extraction rate. The first light extraction layer 51 and the second light extraction layer 51 are used to improve the light extraction rate. The light extraction layer 52 may be formed by a deposition process.

Optionally, continuing to refer to FIG. 5 , the display panel further includes a first cover 61 , a second cover 62 , a first touch layer 71 and a second touch layer 72 ; the first cover 61 is disposed on the first The first touch layer 71 is disposed on the side of the polarizer 41 away from the light-emitting structure 20 and the first cover 61 ; the second cover 62 is disposed on the side of the second polarizer 42 away from the substrate 10 , the second touch layer 72 is disposed between the light-emitting structure 20 and the second cover 62 . Specifically, the first touch layer 71 may be disposed between the encapsulation layer and the first polarizer 41 , or may be disposed between the first polarizer 41 and the first cover 61 . The second touch layer 72 may be disposed between the light-emitting structure 20 and the substrate 10 , or between the substrate 10 and the second polarizer 42 , or between the second polarizer 42 and the second cover 62 between. The first cover 61 and the second cover 62 may be made of glass, the first cover 61 may be bonded to the first polarizer 41 , and the second cover 62 may be bonded to the second polarizer 42 .

In addition, as shown in FIG. 5 , the light-transmitting area of the first electrode layer 21 may be half of the first electrode layer 21 . The half area refers to half of the overlapping area between the vertical projection of the first electrode layer 21 on the substrate 10 and the vertical projection of the light-emitting layer 22 on the substrate 10 . Similarly, the light-transmitting area of the second electrode layer 23 may be half of the area of the second electrode layer 23 . The half area refers to half of the overlapping area between the vertical projection of the second electrode layer 23 on the substrate 10 and the vertical projection of the light-emitting layer 22 on the substrate 10 .

Embodiments of the present invention also provide a display device, which includes the display panel described in any embodiment of the present invention. Therefore, it has the corresponding structure and beneficial effects of the display panel, which will not be described again here.

The display device may be a mobile or fixed terminal such as a mobile phone, a television, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a personal digital assistant (PDA), a virtual reality device, etc. .

Note that the above are only the preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments, combinations and substitutions can be made to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, it can also include more other equivalent embodiments, and the present invention The scope is determined by the scope of the appended claims.

Claims (9)

1. A display panel, characterized in that it includes: substrate; A plurality of light-emitting structures, the light-emitting structures are provided on the substrate, each of the light-emitting structures includes a first electrode layer, a light-emitting layer and a second electrode layer that are stacked in sequence; Wherein, the first electrode layer is disposed on a side of the light-emitting layer close to the substrate, both the first electrode layer and the second electrode layer include a light-transmitting area and an opaque area, and the third electrode layer The vertical projection of the light-transmitting area of one electrode layer on the light-emitting layer does not overlap with the vertical projection of the light-transmitting area of the second electrode layer on the light-emitting layer, so that the light emitted by the light-emitting layer passes through the The light-transmitting area of the first electrode layer and the light-transmitting area of the second electrode layer can both transmit, so that images can be displayed on both sides of the display panel; Wherein, the light-transmitting area is formed with a plurality of patterned light-transmitting structures; The light-transmitting structure of the first electrode layer includes a hole structure opened on the first electrode layer, and/or the light-transmitting structure of the second electrode layer includes a hole opened on the second electrode layer. structure; or The light-transmitting structure of the first electrode layer includes grooves provided on the first electrode layer, and/or the light-transmitting structure of the second electrode layer includes grooves provided on the second electrode layer. Groove, the groove is filled with light-transmitting material; The light-transmitting material includes light-transmitting conductive material; The groove penetrates the first electrode layer and/or the second electrode layer; Wherein, the arrangement of the light-transmitting structures is annular arrangement. 2. The display panel according to claim 1, characterized in that, The size of the light-transmitting area of the first electrode layer is the same as the size of the light-transmitting area of the second electrode layer; The density of the light-transmitting structure of the first electrode layer is the same as the density of the light-transmitting structure of the second electrode layer; The arrangement of the light-transmitting structures of the first electrode layer is the same as the arrangement of the light-transmitting structures of the second electrode layer; wherein the arrangement of the light-transmitting structures also includes a row-column arrangement, Any kind of misaligned arrangement. 3. The display panel according to claim 1, wherein the pore diameter of the hole structure is 0.1-10um; the distribution density of the hole structure is ^1-100 per 100um; The shape of the light-transmitting structure includes at least one of a circle, a square, an ellipse, and a rhombus. 4. The display panel according to claim 1, characterized in that, The materials used in the light-transmitting area include light-transmitting conductive materials; The material used in the opaque area includes opaque metal materials. 5. The display panel according to claim 1, further comprising: A pixel circuit layer, the pixel circuit layer is disposed between the substrate and the light-emitting structure; The pixel circuit layer includes an opaque structure, and a vertical projection of the opaque structure on the substrate does not overlap with a vertical projection of the light-transmitting area of the first electrode layer on the substrate. 6. The display panel according to claim 1, further comprising: a first polarizer and a second polarizer; The first polarizer is disposed on a side of the light-emitting structure away from the substrate, and the second polarizer is disposed on a side of the substrate away from the light-emitting structure. 7. The display panel according to claim 6, further comprising: a first light extraction layer and a second light extraction layer; The first light extraction layer is provided between the light emitting structure and the first polarizer, and the second light extraction layer is provided between the substrate and the light emitting structure. 8. The display panel according to claim 6, further comprising: a first cover plate, a second cover plate, a first touch layer and a second touch layer; The first cover is disposed on a side of the first polarizer away from the light-emitting structure, and the first touch layer is disposed between the light-emitting structure and the first cover; The second cover is disposed on a side of the second polarizer away from the substrate, and the second touch layer is disposed between the light-emitting structure and the second cover. 9. A display device, characterized by comprising: the display panel according to any one of claims 1-8.