Display panel and display apparatus

Abstract

The present application relates to the technical field of display, and discloses a display panel and a display apparatus. The display panel comprises a drive backplane, a light-emitting device, an encapsulation layer, a touch layer, a first dimming layer, and a second dimming layer. The touch layer has multiple first openings, the first dimming layer covers inner walls of the first openings and has multiple second openings, at least a portion of the second dimming layer is located in the second openings, and the refractive index of the second dimming layer is greater than the refractive index of the first dimming layer; thus, light emitted to a contact surface between the portion of the second dimming layer located in the second openings and the first dimming layer is prone to total reflection. The first openings run completely through the touch layer, which further increases the area for total reflection of light. Totally reflected light is emitted from the surface of the second dimming layer away from the drive backplane, which further improves the light-emitting efficiency of the display panel, improves display brightness without increasing current, reduces power consumption, and prolongs the service life of the display panel.

Description

Display panel and display device Technical Field

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

[0002] Display panels that use organic light-emitting diodes (OLEDs) to achieve display functions are called OLED display panels. Due to their high color gamut, thinness, and flexibility, they have become the mainstream display structure.

[0003] However, current OLED displays have relatively low luminous efficiency. To increase brightness, the current must be increased, resulting in high power consumption and short lifespan for the display devices. Summary of the Invention

[0004] This application provides a display panel and a display device. It can solve the problem of low display efficiency in existing display products. The technical solution is as follows:

[0005] On one hand, a display panel is provided, the display panel comprising:

[0006] The driving backplane, pixel definition layer, light-emitting layer, encapsulation layer, touch layer, first dimming layer and second dimming layer;

[0007] The pixel definition layer is located on one side of the driving backplate, and the pixel definition layer has multiple pixel openings;

[0008] The light-emitting layer is located on the side of the pixel definition layer opposite to the driving backplate, and at least a portion of the light-emitting layer is located within the plurality of pixel openings;

[0009] The encapsulation layer is located on the side of the light-emitting layer that is away from the driving backplate;

[0010] The touch layer is located on the side of the encapsulation layer opposite to the driving backplate. The touch layer has a plurality of first openings, which correspond to a plurality of pixel openings. The orthographic projection of the pixel opening on the driving backplate is located within the orthographic projection of the corresponding first opening on the driving backplate.

[0011] The first dimming layer at least covers the inner wall of the first opening, and the first dimming layer has a plurality of second openings, the plurality of second openings corresponding to a plurality of pixel openings, and the orthographic projection of the pixel opening on the driving back plate is located within the orthographic projection of the corresponding second opening on the driving back plate;

[0012] At least a portion of the second dimming layer is located within the second opening and is in contact with the inner wall of the second opening;

[0013] The refractive index of the second dimming layer is greater than that of the first dimming layer.

[0014] Optionally, the portion of the first dimming layer distributed within the first opening faces the drive backplate and contacts the side of the encapsulation layer opposite to the drive backplate; and the portion of the second dimming layer distributed within the second opening contacts the side of the encapsulation layer opposite to the drive backplate.

[0015] Optionally, the distance between the side of the second dimming layer facing away from the driving backplate and the side of the encapsulation layer facing away from the driving backplate is greater than or equal to the distance between the side of the first dimming layer facing away from the driving backplate and the side of the encapsulation layer facing away from the driving backplate.

[0016] Optionally, the first dimming layer further covers the side of the touch layer opposite to the driving backplate, and the second dimming layer further covers the side of the first dimming layer opposite to the driving backplate.

[0017] Optionally, the display panel further includes: a light-absorbing layer having a plurality of third openings, the plurality of third openings corresponding to a plurality of pixel openings, and the orthographic projection of the pixel openings on the driving back panel being located within the orthographic projection of the corresponding third openings on the driving back panel;

[0018] The light-absorbing layer is located between the first dimming layer and the second dimming layer, or the light-absorbing layer is located on the side of the second dimming layer away from the drive backplate.

[0019] Optionally, when the light-absorbing layer is located between the first dimming layer and the second dimming layer, the orthographic projection of the light-absorbing layer on the drive back plate does not coincide with the orthographic projection of the first opening on the drive back plate.

[0020] Optionally, the second dimming layer includes: a first part and a second part connected to each other, the first part covering the side of the first dimming layer away from the drive back plate, and the second part located in the second opening and in contact with the inner wall of the second opening;

[0021] Wherein, the distance between the side of the second part away from the drive backplate and the side of the encapsulation layer away from the drive backplate is less than or equal to the distance between the side of the first part away from the drive backplate and the side of the encapsulation layer away from the drive backplate.

[0022] Optionally, the display panel further includes: a plurality of color filters, all of which are located on the side of the second dimming layer opposite to the driving backplate;

[0023] The plurality of color filter blocks correspond one-to-one with the plurality of pixel openings, and the orthographic projection of the pixel opening on the driving back plate is located within the orthographic projection of the corresponding color filter block on the driving back plate.

[0024] Optionally, when the light-absorbing layer is located between the first dimming layer and the second dimming layer, the second dimming layer has a plurality of grooves on the side away from the driving back plate. The plurality of grooves correspond one-to-one with the plurality of color filters. A portion of the color filters is located inside the corresponding groove, and another portion of the color filters is located outside the corresponding groove.

[0025] Optionally, the angle between the inner wall of the groove and the bottom surface of the groove is an obtuse angle.

[0026] Optionally, the display panel further includes: an auxiliary light-absorbing layer, the auxiliary light-absorbing layer being located on the side of the color filter block facing away from the driving back plate;

[0027] The orthographic projection of the auxiliary light-absorbing layer on the drive back plate overlaps with the orthographic projection of the portion of the color filter block located outside the groove on the drive back plate.

[0028] Optionally, the second dimming layer has a filtering property, and the second dimming layer includes: a plurality of color filter blocks, the plurality of color filter blocks corresponding one-to-one with the plurality of second openings, at least a portion of the color filter blocks being located in the corresponding second opening and in contact with the inner wall of the second opening.

[0029] Optionally, a portion of the color filter block is located inside the corresponding second opening, and another portion is located outside the corresponding second opening;

[0030] Among them, for two adjacent color filter blocks of different colors, in the area between the two color filter blocks, the portion of one color filter block located outside the second opening is stacked with the portion of the other color filter block located outside the second opening;

[0031] Alternatively, the display panel may further include a light-absorbing layer located on the side of the plurality of color filters facing away from the driving backplate, and the light-absorbing layer covering the portion of the color filters located outside the second opening.

[0032] Optionally, the display panel further includes a cover layer located on the side of the plurality of color filters facing away from the drive backplate.

[0033] Optionally, the touch layer includes: a touch buffer layer, a first metal touch layer, a touch insulating layer, and a second metal touch layer stacked in a direction away from the driving backplate, wherein the first opening sequentially penetrates the second metal touch layer, the touch insulating layer, the first metal touch layer, and the touch buffer layer.

[0034] Optionally, the angle between the portion of the first dimming layer distributed within the first opening and the side facing the drive backplate and the inner wall of the second opening is an acute angle.

[0035] On the other hand, another display panel is provided, the display panel comprising:

[0036] Driver backplane, pixel definition layer, emissive layer and encapsulation layer;

[0037] The pixel definition layer is located on one side of the driving backplate, and the pixel definition layer has multiple pixel openings;

[0038] The light-emitting layer is located on the side of the pixel definition layer opposite to the driving backplate, and at least a portion of the light-emitting layer is located within the plurality of pixel openings;

[0039] The encapsulation layer is located on the side of the light-emitting layer away from the driving backplate. The encapsulation layer includes a first inorganic encapsulation layer and a second inorganic encapsulation layer stacked together, and a third dimming layer and a fourth dimming layer located between the first inorganic encapsulation layer and the second inorganic encapsulation layer.

[0040] The third dimming layer has a plurality of fourth openings, which correspond to a plurality of pixel openings. The orthographic projection of the pixel opening on the driving back plate is located within the orthographic projection of the corresponding fourth opening on the driving back plate.

[0041] At least a portion of the fourth dimming layer is located within the fourth opening and is in contact with the inner wall of the fourth opening. The refractive index of the fourth dimming layer is greater than that of the third dimming layer.

[0042] Optionally, the third dimming layer is in contact with the side of the first inorganic encapsulation layer facing away from the driving backplate on the side facing away from the driving backplate; and the portion of the fourth dimming layer distributed within the fourth opening is in contact with the side of the first inorganic encapsulation layer facing away from the driving backplate.

[0043] On the other hand, another type of display panel is provided, which includes: a driving backplane, a pixel definition layer, a light-emitting layer, an encapsulation layer, a touch layer, and a fifth dimming layer;

[0044] The pixel definition layer is located on one side of the driving backplate, and the pixel definition layer has multiple pixel openings;

[0045] The light-emitting layer is located on the side of the pixel definition layer opposite to the driving backplate, and at least a portion of the light-emitting layer is located within the plurality of pixel openings;

[0046] The encapsulation layer is located on the side of the light-emitting layer that is away from the driving backplate;

[0047] The touch layer is located on the side of the encapsulation layer away from the driving backplate. The touch layer includes a first metal touch layer, a touch insulating layer and a second metal touch layer stacked in a direction away from the driving backplate. The touch insulating layer has a plurality of fifth openings, which correspond to a plurality of pixel openings. The orthographic projection of the pixel opening on the driving backplate is located within the orthographic projection of the corresponding fifth opening on the driving backplate.

[0048] At least a portion of the fifth dimming layer is located within the fifth opening and is in contact with the inner wall of the fifth opening;

[0049] The refractive index of the fifth dimming layer is greater than that of the touch insulating layer.

[0050] In another aspect, a display device is provided, the display device comprising: any of the above-mentioned display panels.

[0051] The beneficial effects of the technical solutions provided in this application include at least the following:

[0052] Because the touch layer has multiple first openings, the first dimming layer at least covers the inner wall of the first openings and has multiple second openings, and the second dimming layer is at least partially located within the second openings, light emitted from the light-emitting layer passes through the encapsulation layer and enters the second dimming layer. Since the refractive index of the second dimming layer is greater than that of the first dimming layer, light rays striking the contact surface between the portion of the second dimming layer located within the second opening and the first dimming layer are highly susceptible to total internal reflection. That is, light rays striking the inner wall of the second opening are highly susceptible to total internal reflection, thereby altering the light transmission path. This allows the reflected light to exit from the side of the second dimming layer away from the driving backplate, and the angle between the reflected light and the normal to the driving backplate is smaller, thus improving the light extraction efficiency of the display panel at narrow viewing angles. In this way, the brightness of the display panel at the forward viewing angle can be increased without increasing the current, thereby reducing power consumption and extending the lifespan of the display panel. Furthermore, since the first opening in the touch layer of this application can penetrate the entire touch layer, the depth of the first opening is relatively deep. This results in a larger contact area between the portion of the second dimming layer located inside the second opening and the first dimming layer, thereby increasing the area for total internal reflection. Therefore, it is possible to further improve the light emission efficiency of the display panel at narrow viewing angles, increase the brightness of the display panel at the normal viewing angle, and reduce power consumption. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 is a top view of a partial structure of a display panel provided in an embodiment of this application;

[0055] Figure 2 is a schematic diagram of the film layer structure of a display panel at AA' in Figure 1, according to an embodiment of this application.

[0056] Figure 3 is a schematic diagram of the film structure of another display panel provided in an embodiment of this application at AA' in Figure 1;

[0057] Figure 4 is a top view of a partial structure of another display panel provided in an embodiment of this application;

[0058] Figure 5 is a schematic diagram of the film layer structure at BB' in Figure 4 of another display panel provided in the embodiment of this application;

[0059] Figure 6 is a schematic diagram of the film layer structure at BB' in Figure 4 of another display panel provided in the embodiment of this application;

[0060] Figure 7 is a schematic diagram of the film layer structure at BB' in Figure 4 for another display panel provided in an embodiment of this application;

[0061] Figure 8 is a schematic diagram of the film layer structure of a display panel at AA' in Figure 1, according to another embodiment of this application;

[0062] Figure 9 is a schematic diagram of the film layer structure at BB' in Figure 4 of another display panel provided in another embodiment of this application;

[0063] Figure 10 is a schematic diagram of the film layer structure at BB' in Figure 4 of another display panel provided in another embodiment of this application;

[0064] Figure 11 is a top view of a partial structure of a display panel according to another embodiment of this application;

[0065] Figure 12 is a schematic diagram of the film layer structure of a display panel at CC' in Figure 11, according to another embodiment of this application.

[0066] Figure 13 is a top view of a partial structure of a display panel according to another embodiment of this application;

[0067] Figure 14 is a schematic diagram of the film layer structure of a display panel at DD' in Figure 13, according to another embodiment of this application;

[0068] Figure 15 is a schematic diagram of the film structure at DD' in Figure 13 of another display panel provided in a further embodiment of this application;

[0069] Figure 16 is a schematic diagram of the film structure at DD' in Figure 13 of another display panel provided in a further embodiment of this application;

[0070] Figure 17 is a top view of a portion of the structure in a display panel provided in an embodiment of this application. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0072] Please refer to Figures 1 and 2. Figure 1 is a top view of a partial structure of a display panel according to an embodiment of this application, and Figure 2 is a schematic diagram of the film layer structure of a display panel at AA' in Figure 1 according to an embodiment of this application. The display panel 000 may include a driving backplane 100, a pixel definition layer 1000, a light-emitting layer 202, an encapsulation layer 300, a touch layer 400, a first dimming layer 500, and a second dimming layer 600.

[0073] The pixel definition layer 1000 is located on one side of the driving backplane 100, and the pixel definition layer 1000 has multiple pixel openings K.

[0074] The light-emitting layer 202 is located on the side of the pixel definition layer 1000 opposite to the driving backplane 100, and at least a portion of the light-emitting layer 202 is located within a plurality of pixel openings K. In one possible implementation, a portion of the light-emitting layer 202 may be located within a plurality of pixel openings K, and another portion may be located on the side of the pixel definition layer 1000 opposite to the driving backplane.

[0075] In this application, the display panel 000 may further include a first electrode layer 201 and a second electrode layer 203 located on both sides of the light-emitting layer 202. Here, the first electrode layer 201, the light-emitting layer 202, and the second electrode layer 203 may be used to form a plurality of light-emitting devices 200.

[0076] For example, the first electrode layer 201 can be located on the side of the pixel definition layer 1000 facing the driving backplate 100, and the light-emitting layer 202 and the second electrode layer 203 can both be located on the side of the pixel definition layer 1000 away from the driving backplate 100. Furthermore, the first electrode layer 201 can include multiple first electrodes corresponding one-to-one with the multiple pixel openings K, and the orthographic projection of each first electrode on the driving backplate 100 can lie within the orthographic projection of the corresponding pixel opening K on the driving backplate 100. Therefore, the portion of the light-emitting layer 202 distributed within each pixel opening K can contact the corresponding first electrode. In this case, for any pixel opening K, the first electrode corresponding to this pixel opening K (often also referred to as the anode), and the portions of the light-emitting layer 202 and the second electrode layer 203 distributed within this pixel opening K (often also referred to as the cathode) can constitute a light-emitting device 200.

[0077] The encapsulation layer 300 is located on the side of the light-emitting layer 202 facing away from the driving backplate 100. Alternatively, the encapsulation layer 300 may be located on the side of the second electrode layer 203 facing away from the driving backplate 100. The encapsulation layer 300 may include: a first inorganic encapsulation layer 301 and a second inorganic encapsulation layer 303, and an organic encapsulation layer 302 located between the first inorganic encapsulation layer 301 and the second inorganic encapsulation layer 303. The encapsulation layer 300 can be used to encapsulate each light-emitting device 200, preventing water and oxygen from the external environment from corroding the interior of the light-emitting device 200 and causing damage.

[0078] The touch layer 400 is located on the side of the encapsulation layer 300 opposite to the driving backplane 100. The touch layer 400 has a plurality of first openings 400a, which correspond to a plurality of pixel openings K in the pixel definition layer 1000. The orthographic projection of the pixel opening K on the driving backplane 100 lies within the orthographic projection of the corresponding first opening 400a on the driving backplane 100. In one possible case, the plurality of first openings 400a in the touch layer 400 and the plurality of pixel openings K in the pixel definition layer 1000 are in one-to-one correspondence, as shown in Figure 1. The orthographic projection of the light-emitting device 200 in each pixel opening K on the driving backplane 100 can lie within the orthographic projection of the corresponding first opening 400a in the touch layer 400 on the driving backplane 100. In this way, the light emitted by each light-emitting device 200 will not be blocked by the touch layer 400, but can be emitted out through their respective first openings 400a. Thus, while ensuring that the display panel 000 can emit light normally, the touch function can be achieved by setting the touch layer 400 on the side of the encapsulation layer 300 away from the driving backplate 100.

[0079] The first dimming layer 500 at least covers the inner wall of the first opening 400a, and the first dimming layer 500 has a plurality of second openings 500a, as shown in FIG1. ​​The orthographic projection of the second opening 500a on the driving backplate 100 lies within the orthographic projection of the corresponding first opening 400a on the driving backplate 100. The plurality of second openings 500a correspond to a plurality of pixel openings K, and the orthographic projection of the pixel opening K on the driving backplate 100 lies within the orthographic projection of the corresponding second opening 500a on the driving backplate 100. In one possible case, the plurality of second openings 500a in the first dimming layer 500 corresponds one-to-one with the plurality of pixel openings K in the pixel definition layer 1000, as shown in FIG1. ​​The orthographic projection of the light-emitting device 200 in each pixel opening K on the driving backplate 100 may lie within the orthographic projection of the corresponding second opening 500a in the first dimming layer 500 on the driving backplate 100.

[0080] At least a portion of the second dimming layer 600 is located within the second opening 500a and is in contact with the inner wall of the second opening 500a.

[0081] The refractive index of the second dimming layer 600 is greater than that of the first dimming layer 500. For example, the difference between the refractive index of the second dimming layer 600 and the refractive index of the first dimming layer 500 is greater than 0.15.

[0082] In this embodiment, the portion of the first dimming layer 500 distributed within the first opening 400a faces the drive backplate 100, and the angle between this portion and the inner wall of the second opening 500a is an acute angle X. That is, the contact surface between the portion of the second dimming layer 600 located within the second opening 500a and the first dimming layer 500 is an inclined surface, and the angle between this inclined surface and the surface containing the openings of the second opening 500a facing the drive backplate 100 is an obtuse angle Y.

[0083] In this scenario, after the light emitted by the light-emitting device 200 passes through the encapsulation layer 300 and enters the second dimming layer 600, due to the higher refractive index of the second dimming layer 600 compared to the first dimming layer 500, the light rays striking the contact surface between the portion of the second dimming layer 600 located within the second opening 500a and the first dimming layer 500 are highly susceptible to total internal reflection. That is, the light rays striking the inner wall of the second opening 500a are highly susceptible to total internal reflection, thereby altering the light transmission path. This allows the reflected light rays to exit from the side of the second dimming layer 600 away from the driving backplate 100, and the angle between the reflected light rays and the normal to the driving backplate 100 is smaller. This improves the light extraction efficiency of the display panel 000 at narrow viewing angles, thus increasing the brightness of the display panel 000 at the forward viewing angle without increasing the current, thereby reducing power consumption and extending the lifespan of the display panel 000.

[0084] Furthermore, since the first opening 400a of the touch layer 400 in this application can penetrate the entire touch layer 400, the depth of the first opening 400a is relatively deep. Consequently, the contact area between the portion of the second dimming layer 600 located inside the second opening 500a and the first dimming layer 500 is larger, thereby increasing the area where total internal reflection occurs. Therefore, the light emission efficiency of the display panel 000 at narrow viewing angles can be further improved, and the brightness of the display panel 000 at the orthogonal viewing angle can be increased.

[0085] In summary, the display panel provided in this application includes: a driving backplane, a pixel definition layer, a light-emitting layer, an encapsulation layer, a touch layer, a first dimming layer, and a second dimming layer. Light emitted from the light-emitting layer passes through the encapsulation layer and enters the second dimming layer. Because the refractive index of the second dimming layer is greater than that of the first dimming layer, light rays incident on the contact surface between the portion of the second dimming layer located inside the second opening and the first dimming layer are prone to total internal reflection. That is, light rays incident on the inner wall of the second opening are prone to total internal reflection, thereby changing the light transmission path. This allows the reflected light to exit from the side of the second dimming layer away from the driving backplane, and the angle between the reflected light and the normal to the driving backplane is smaller, thus improving the light extraction efficiency of the display panel at small viewing angles. In this way, the brightness of the display panel at the forward viewing angle can be increased without increasing the current, thereby reducing power consumption and extending the lifespan of the display panel. Furthermore, since the first opening in the touch layer of this application can penetrate the entire touch layer, the depth of the first opening is relatively deep. This results in a larger contact area between the portion of the second dimming layer located inside the second opening and the first dimming layer, thereby increasing the area for total internal reflection. Therefore, it is possible to further improve the light emission efficiency of the display panel at narrow viewing angles, increase the brightness of the display panel at the normal viewing angle, and reduce power consumption.

[0086] In this embodiment of the application, as shown in FIG2, the touch layer 400 may include: a touch buffer layer 401, a first metal touch layer 402, a touch insulating layer 403, and a second metal touch layer 404 stacked along a direction away from the driving backplate 100. A first opening 400a sequentially penetrates the second metal touch layer 404, the touch insulating layer 403, the first metal touch layer 402, and the touch buffer layer 401.

[0087] Here, the touch buffer layer 401 can contact the side of the encapsulation layer 300 away from the driving backplate 100. By setting the touch buffer layer 401, it can be ensured that the first metal touch layer 402 and the second metal touch layer 404 can be formed better in the future.

[0088] One of the first metal touch layer 402 and the second metal touch layer 404 may include: a plurality of first touch electrodes and a plurality of second touch electrodes disposed in the same layer, and a connecting electrode for connecting two adjacent first touch electrodes; the other of the first metal touch layer 402 and the second metal touch layer 404 may include: a bridging electrode for connecting two adjacent first touch electrodes.

[0089] It should be noted that the bridging electrode and the connecting electrode can be arranged alternately, and they can be insulated from each other by the touch insulating layer 403. One of the first touch electrode and the second touch electrode can be a touch driving electrode, and the other can be a touch sensing electrode. The cooperation between the touch driving electrode and the touch sensing electrode enables the display panel to have touch functionality.

[0090] It should also be noted that both the touch driving electrode and the touch sensing electrode are mesh-shaped electrodes with multiple mesh holes, and the mesh holes in the touch driving electrode and the touch sensing electrode are part of the first opening 400a.

[0091] Therefore, the portion of the first dimming layer 500 distributed within the first opening 400a, facing the driving backplate 100, can contact the side of the encapsulation layer 300 opposite to the driving backplate 100. Similarly, the portion of the second dimming layer 600 distributed within the second opening 500a can contact the side of the encapsulation layer 300 opposite to the driving backplate 100. That is, the first opening 400a can penetrate all the film layers in the touch layer 400, allowing the portion of the first dimming layer 500 distributed within the first opening 400a to directly contact the encapsulation layer 300. Likewise, the second opening 500a can also penetrate the portion of the first dimming layer 500 distributed within the first opening 400a, allowing the portion of the second dimming layer 600 distributed within the second opening 500a to directly contact the encapsulation layer 300.

[0092] In this case, it can be ensured that in the direction perpendicular to the drive backplate 100, the width of the contact surface between the portion of the second dimming layer 600 located inside the second opening 500a and the first dimming layer 500 is equal to the depth of the first via 400a, thereby ensuring that the area of ​​the contact surface between the portion of the second dimming layer 600 located inside the second opening 500a and the first dimming layer 500 is large.

[0093] It should be noted that the embodiments in this application are illustrated by taking the example of the first opening 400a sequentially penetrating the second metal touch layer 404, the touch insulating layer 403, the first metal touch layer 402, and the touch buffer layer 401. In other possible implementations, as shown in Figure 3, the first opening 400a may also penetrate only the second metal touch layer 404, the touch insulating layer 403, and the first metal touch layer 402, without penetrating the touch buffer layer 401. In this case, the depth of the first opening 400a can be made deeper, thereby increasing the contact area between the portion of the second dimming layer 600 located inside the second opening 500a and the first dimming layer 500, thus increasing the area where total internal reflection occurs. Therefore, the light emission efficiency of the display panel 000 at small viewing angles can be further improved, and the brightness of the display panel 000 at the forward viewing angle can be increased.

[0094] In this embodiment, the distance between the side of the second dimming layer 600 away from the driving backplate 100 and the side of the encapsulation layer 300 away from the driving backplate 100 is greater than or equal to the distance between the side of the first dimming layer 500 away from the driving backplate 100 and the side of the encapsulation layer 300 away from the driving backplate 100.

[0095] That is, when the distance between the side of the second dimming layer 600 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100 is equal to the distance between the side of the first dimming layer 500 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100, the second dimming layer 600 can be entirely distributed within the multiple second openings 500a, without any distribution on the side of the first dimming layer 500 facing away from the driving backplate 100. Furthermore, the side of the first dimming layer 500 facing away from the driving backplate is flush with the side of the second dimming layer 600 facing away from the driving backplate 100, to ensure that the contact area between the portion of the second dimming layer 600 located within the second opening 500a and the first dimming layer 500 does not decrease.

[0096] When the distance between the side of the second dimming layer 600 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100 is greater than the distance between the side of the first dimming layer 500 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100, a portion of the second dimming layer 600 may be distributed within a plurality of second openings 500a, and another portion of the second dimming layer 600 may be distributed on the side of the first dimming layer 500 facing away from the driving backplate 100.

[0097] Optionally, referring to Figure 2, the first dimming layer 500 can also cover the side of the touch layer 400 facing away from the driving backplate 100, and the second dimming layer 600 can also cover the side of the first dimming layer 500 facing away from the driving backplate 100. That is, the first dimming layer 500 can be located not only within each of the first openings 400a, but also on the side of the touch layer 400 facing away from the driving backplate; the second dimming layer 600 can be located not only within each of the second openings 500a, but also on the side of the first dimming layer 500 facing away from the driving backplate 100. It should be noted that, in this case, referring to Figure 1, the first dimming layer 500 in the top view is not limited to the first openings 400a in the touch layer 400, but can be located on the side of the touch layer 400 facing away from the driving backplate. That is, in the top view, the first dimming layer 500 is located uninterruptedly between two adjacent second openings 500a.

[0098] In this scenario, during the fabrication of the first dimming layer 500, simply ensuring that the first dimming layer 500 completely covers the touch layer 400 is sufficient to guarantee that the first dimming layer 500 completely covers the sidewalls of each first opening 400a. Similarly, during the fabrication of the second dimming layer 600, simply ensuring that the second dimming layer 600 completely covers the first dimming layer 500 is sufficient to guarantee that the second dimming layer 600 completely covers the sidewalls of each second opening 500a. This eliminates the need for precise control over the thickness of the first dimming layer 500 and the second dimming layer 600, ensuring that, in the direction perpendicular to the drive backplate 100, the width of the contact surface between the portion of the second dimming layer 600 located within the second opening 500a and the first dimming layer 500 is equal to the depth of the first opening 400a. This effectively simplifies the fabrication of the first dimming layer 500 and the second dimming layer 600 in the display panel 000. Furthermore, in this case, the first dimming layer 500 and the second dimming layer 600 can also work together as a protective layer for protecting the touch layer 400.

[0099] Optionally, please refer to Figures 4 and 5. Figure 4 is a top view of a partial structure of a display panel provided in an embodiment of this application, and Figure 5 is a schematic diagram of the film layer structure at BB' in Figure 4 for another display panel provided in an embodiment of this application. The display panel 000 may further include: a light-absorbing layer 700, which has a plurality of third openings 700a. The plurality of third openings 700a correspond to a plurality of pixel openings K in the pixel definition layer 1000, and the orthographic projection of the pixel opening K on the driving backplate 100 is located within the orthographic projection of the corresponding third opening 700a on the driving backplate 100. In one possible case, as shown in Figure 4, the plurality of third openings 700a in the light-absorbing layer 700 correspond one-to-one with the plurality of pixel openings K in the pixel definition layer 1000. The orthographic projection of the light-emitting device 200 in each pixel opening K on the driving backplate 100 may be located within the orthographic projection of the corresponding third opening 700a in the light-absorbing layer 700 on the driving backplate 100.

[0100] Preferably, as shown in Figure 4, the plurality of third openings 700a correspond to the plurality of second openings 500a in the first dimming layer 500. The orthographic projection of the second opening 500a on the driving backplate 100 lies within the orthographic projection of the corresponding third opening 700a on the driving backplate 100. That is, there is no portion of the light-absorbing layer 700 distributed within the second openings 500a. In this case, the light emitted from the light-emitting device 200 that strikes the sidewall of the second opening 500a will not be absorbed by the light-absorbing layer 700, so that the light striking the sidewall of the second opening 500a will be totally reflected as much as possible, thereby ensuring that the display panel 000 has high light emission efficiency at small viewing angles.

[0101] In this application, the light-absorbing layer 700 can be distributed in various ways. The embodiments of this application illustrate the following two possible implementation methods as examples:

[0102] In one possible implementation, as shown in Figure 5, the light-absorbing layer 700 can be located between the first dimming layer 500 and the second dimming layer 600. In this case, the distance between the light-absorbing layer 700 and the light-emitting device 200 is small, which ensures that the probability of the light emitted by the light-emitting device 200 with a wide viewing angle being directly absorbed by the light-absorbing layer 700 is small. This effectively increases the emissivity of the light emitted by the light-emitting device 200 with a wide viewing angle, which is beneficial for increasing the display viewing angle of the display panel 000.

[0103] A second possible implementation is shown in Figure 6, which is a schematic diagram of the film structure of another display panel provided in this application embodiment at BB' in Figure 4. The light-absorbing layer 700 can be located on the side of the second dimming layer 600 away from the driving backplate 100. In this case, the light-absorbing layer 700 can also absorb part of the ambient light incident on the display panel 000, which helps to reduce the reflectivity of the display panel 000 to ambient light and improve the display effect of the display panel 000.

[0104] Optionally, as shown in Figures 5 and 6, the display panel 000 may further include: a plurality of color filters 800, all located on the side of the second dimming layer 600 facing away from the driving backplate 100. Each of the plurality of color filters 800 corresponds one-to-one with a plurality of pixel openings K, and the orthographic projection of each pixel opening K onto the driving backplate 100 may lie within the orthographic projection of the corresponding color filter 800 onto the driving backplate 100.

[0105] In this application, the distribution of the color filter blocks 800 can be implemented in various ways. This application embodiment illustrates the following two optional implementation methods as examples:

[0106] In the first optional implementation, as shown in Figure 5, when the light-absorbing layer 700 is located between the first dimming layer 500 and the second dimming layer 600, each color filter block 800 is located on the side of the second dimming layer 600 away from the driving back plate 100, and each color filter block 800 facing the driving back plate 100 can contact the side of the second dimming layer 600 away from the driving back plate 100.

[0107] In this application, the second dimming layer 600 in the display panel 000 may include: a first portion 601 and a second portion 602 connected to each other. The first portion 601 covers the side of the first dimming layer 500 facing away from the driving backplate 100, and the second portion 602 is located within a second opening 500a and contacts the inner wall of the second opening 500a. For example, there may be multiple second portions 602 in the second dimming layer 600, and each of the multiple second portions 602 may correspond one-to-one with a multiple second openings 500a. Each second portion 602 may be located within a corresponding second opening 500a and contact the inner wall of the corresponding second opening 500a.

[0108] The distance H1 between the side of the second portion 602 of the second dimming layer 600 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100 can be less than or equal to the distance H2 between the side of the first portion 601 of the second dimming layer 600 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100.

[0109] In one possible scenario, as shown in Figure 5, when the distance H1 between the side of the second portion 602 in the second dimming layer 600 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100 is equal to the distance H2 between the side of the first portion 601 in the second dimming layer 600 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100, the second dimming layer 600 has a relatively thick overall thickness and high flatness, making the side of the second dimming layer 600 facing away from the driving backplate 100 a flat plane.

[0110] In another possible scenario, please refer to Figure 7, which is a schematic diagram of the film layer structure at BB' in Figure 4 for another display panel provided in an embodiment of this application. When the distance H1 between the side of the second portion 602 of the second dimming layer 600 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100 is less than the distance H2 between the side of the first portion 601 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100, the overall thickness of the second dimming layer 600 is relatively thin, and the transmission path of the light emitted by the light-emitting device 200 through the second dimming layer 600 is relatively short, which is beneficial for improving display brightness.

[0111] Furthermore, when the distance H1 between the side of the second portion 602 of the second dimming layer 600 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100 is less than the distance H2 between the side of the first portion 601 facing away from the driving backplate 100 and the side of the encapsulation layer 300 facing away from the driving backplate 100, multiple grooves 600a will be formed on the side of the second dimming layer 600 facing away from the driving backplate 100. Here, the multiple grooves 600a correspond one-to-one with multiple color filters 800, with a portion of each color filter 800 located within the corresponding groove 600a and another portion located outside the corresponding groove 600a. This can help increase the connection area between the color filters 800 and the second dimming layer 600, ensuring the strong connection between the second dimming layer 600 and the color filters 800, thereby reducing the probability of film separation between the color filters 800 and the second dimming layer 600.

[0112] For example, the angle between the inner wall of the groove 600a and the bottom surface of the groove 600a is an obtuse angle Z1, so that the inner wall of the groove 600a can be an inclined surface. In this way, the connection area between the color filter block 800 and the second dimming layer 600 can be further increased.

[0113] It should be noted that when a portion of the color filter 800 is located within the corresponding recess 600a and another portion is located outside the corresponding recess 600a, the thickness of the portion of the color filter 800 located within the recess 600a differs from the thickness of the portion located outside the recess 600a. Because color filters 800 of different thicknesses absorb ambient light to varying degrees, the display panel 000 is highly susceptible to dark-state chromatic dispersion problems.

[0114] Therefore, as shown in Figure 7, the display panel 000 may further include an auxiliary light-absorbing layer 701, which is located on the side of the color filter block 800 facing away from the driving backplate 100. The orthographic projection of the auxiliary light-absorbing layer 701 onto the driving backplate 100 overlaps with the orthographic projection of the portion of the color filter block 800 located outside the groove 600a onto the driving backplate 100. That is, the auxiliary light-absorbing layer 701 can partially or completely cover the portion of the color filter block 800 located outside the groove 600a. On the one hand, the auxiliary light-absorbing layer 701 can absorb ambient light, reducing the reflectivity of the display panel 000 and improving its display effect; on the other hand, by covering the portion of the color filter block 800 located outside the groove 600a, it can increase the absorption of ambient light by that portion, thus reducing the probability of dark-state dispersion problems in the display panel 000.

[0115] The second optional implementation, as shown in Figure 6, involves the color filter 800 located on the side of the light-absorbing layer 700 away from the driving backplate 100, where the light-absorbing layer 700 is located on the same side. In this case, multiple color filters 800 correspond one-to-one with multiple third openings 700a in the light-absorbing layer 700. A portion of each color filter 800 is located within its corresponding third opening 700a, while another portion is located outside its corresponding third opening 700a. Here, the angle between the inner wall and the bottom surface of the third opening 700a is an obtuse angle Z2, which helps to increase the connection area between the color filter 800 and the light-absorbing layer 700 and the second dimming layer 600, ensuring that the color filter 800 is less prone to film separation.

[0116] It should be noted that the above embodiments are illustrative examples assuming the second dimming layer 600 is a completely transparent film layer, allowing light of any color to pass through it. In other possible implementations, the second dimming layer 600 may also have filtering properties. That is, the second dimming layer 600 is not completely transparent; only light of a specific color can pass through it. Therefore, the second dimming layer 600 and the color filter block 800 in the display panel can be reused as the same film layer.

[0117] For example, please refer to Figure 8, which is a schematic diagram of the film structure of a display panel at AA' in Figure 1 according to another embodiment of this application. The second dimming layer 600 may include a plurality of color filters 800. Each of the plurality of color filters 800 corresponds one-to-one with a plurality of second openings 500a. At least a portion of the color filters 800 is located within the corresponding second opening 500a and is in contact with the inner wall of the second opening 500a. The refractive index of the color filters 800 is greater than the refractive index of the first dimming layer 500. For example, the difference between the refractive index of the color filters 800 and the refractive index of the first dimming layer 500 is greater than 0.15.

[0118] In this scenario, after the light emitted by the light-emitting device 200 passes through the encapsulation layer 300 and enters the color filter block 800, the light rays striking the contact surface between the portion of the color filter block 800 located inside the second opening 500a and the first dimming layer 500 are highly susceptible to total internal reflection due to the higher refractive index of the color filter block 800 compared to the first dimming layer 500. That is, the light rays striking the inner wall of the second opening 500a are highly susceptible to total internal reflection, thereby altering the light transmission path. This allows the reflected light rays to exit from the side of the color filter block 800 away from the driving backplate 100, and the angle between the reflected light rays and the normal to the driving backplate 100 is smaller. This improves the light extraction efficiency of the display panel 000 at narrow viewing angles, thus increasing the brightness of the display panel 000 at the forward viewing angle without increasing the current, thereby reducing power consumption and extending the lifespan of the display panel 000.

[0119] Furthermore, since the second dimming layer 600 in this application has light-filtering properties, it can serve as a light-filtering layer in the display panel 000. Therefore, it is unnecessary to integrate a separate light-filtering layer into the display panel 000, thus reducing the thickness of the display panel 000.

[0120] In this embodiment of the application, as shown in FIG8, a portion of each color filter block 800 is located within the corresponding second opening 500a, and another portion is located outside the corresponding second opening 500a. That is, the portion of the color filter block 800 located within the second opening 500a can directly contact the side of the encapsulation layer 300 away from the driving backplate 100, and the portion of the color filter block 800 located outside the second opening 500a can be distributed on the side of the first dimming layer 500 away from the driving backplate 100. This ensures that, in the direction perpendicular to the drive backplate 100, the width of the contact surface between the portion of the color filter block 800 located inside the second opening 500a and the first dimming layer 500 is equal to the depth of the second opening 500a. Consequently, it ensures that the contact surface area between the portion of the color filter block 800 located inside the second opening 500a and the first dimming layer 500 is large. That is, the contact surface area where light is easily subjected to total internal reflection is large, which can improve the light emission efficiency of the display panel 000 at small viewing angles. In this way, the brightness of the display panel 000 at the forward viewing angle can be increased without increasing the current, thereby reducing power consumption and increasing the service life of the display panel 000.

[0121] In one possible scenario, as shown in Figure 8, for two adjacent color filters 800 of different colors, in the area between the two color filters 800, the portion of one color filter 800 located outside the second opening 500a is stacked with the portion of the other color filter 800 located outside the second opening 500a. Here, light rays with a wide viewing angle emitted from a certain color filter 800 can be absorbed by the portions of the adjacent color filters 800 located outside the second opening 500a, thereby effectively preventing color bleeding on the display panel 000.

[0122] In another possible scenario, please refer to Figure 9, which is a schematic diagram of the film layer structure at BB' in Figure 4 for another display panel provided in another embodiment of this application. The display panel 000 may further include a light-absorbing layer 700, which is located on the side of the plurality of color filters 800 facing away from the driving back plate 100, and the light-absorbing layer 700 covers the portion of the color filters 800 located outside the second opening 500a. Here, light with a wide viewing angle emitted from a certain color filter 800 can be absorbed by the light-absorbing layer 700 distributed between two adjacent color filters 800, thereby effectively avoiding the defective phenomenon of color bleeding in the display panel 000. In addition, the light-absorbing layer 700 can also absorb ambient light, reduce the reflectivity of the display panel 000 to ambient light, and improve the display effect of the display panel 000.

[0123] It should be noted that the above embodiments are all illustrative examples of touch layer 400 consisting only of a touch buffer layer 401, a first metal touch layer 402, a touch insulating layer 403, and a second metal touch layer 404 stacked together. For other possible implementations, please refer to Figure 10, which is a schematic diagram of the film structure at BB' in Figure 4 of another display panel provided by another embodiment of this application. Touch layer 400 may further include: a touch protective layer 405 located on the side of the second metal touch layer 404 facing away from the driving backplate 100, with a first opening 400a that sequentially penetrates the touch protective layer 405, the second metal touch layer 404, the touch insulating layer 403, the first metal touch layer 402, and the touch buffer layer 401. In this case, the thickness of the first dimming layer 500 and the second dimming layer 600 can be further increased, thereby increasing the contact surface between the portion of the second dimming layer 600 located inside the second opening 500a and the first dimming layer 500. That is, the area where total internal reflection occurs is increased, thus further improving the light emission efficiency of the display panel 000 at small viewing angles and increasing the brightness of the display panel 000 at the forward viewing angle.

[0124] Optionally, as shown in Figures 5 to 10, the display panel 000 may further include: a cover layer 900, which is located on the side of the plurality of color filters 800 away from the driving back plate 100, covers the plurality of color filters 800 and the gaps between the plurality of color filters 800, protects the color filters 800, and ensures the flatness of the light-emitting side of the display panel 000.

[0125] In summary, the display panel provided in this application includes: a driving backplane, a pixel definition layer, a light-emitting layer, an encapsulation layer, a touch layer, a first dimming layer, and a second dimming layer. Light emitted from the light-emitting layer passes through the encapsulation layer and enters the second dimming layer. Because the refractive index of the second dimming layer is greater than that of the first dimming layer, light rays incident on the contact surface between the portion of the second dimming layer located inside the second opening and the first dimming layer are prone to total internal reflection. That is, light rays incident on the inner wall of the second opening are prone to total internal reflection, thereby changing the light transmission path. This allows the reflected light to exit from the side of the second dimming layer away from the driving backplane, and the angle between the reflected light and the normal to the driving backplane is smaller, thus improving the light extraction efficiency of the display panel at small viewing angles. In this way, the brightness of the display panel at the forward viewing angle can be increased without increasing the current, thereby reducing power consumption and extending the lifespan of the display panel. Furthermore, since the first opening in the touch layer of this application can penetrate the entire touch layer, the depth of the first opening is relatively deep. This results in a larger contact area between the portion of the second dimming layer located inside the second opening and the first dimming layer, thereby increasing the area for total internal reflection. Therefore, it is possible to further improve the light emission efficiency of the display panel at narrow viewing angles, increase the brightness of the display panel at the normal viewing angle, and reduce power consumption.

[0126] This application also provides another display panel structure that can reduce the power consumption of the display panel. Please refer to Figures 11 and 12. Figure 11 is a top view of a partial structure of a display panel according to another embodiment of this application, and Figure 12 is a schematic diagram of the film layer structure of a display panel at CC' in Figure 11 according to another embodiment of this application. The display panel 000 may include: a driving backplane 100, a pixel definition layer 1000, a light-emitting layer 202, and an encapsulation layer 300.

[0127] The pixel definition layer 1000 is located on one side of the driving backplane 100, and the pixel definition layer 1000 has multiple pixel openings K.

[0128] The light-emitting layer 202 is located on the side of the pixel definition layer 1000 opposite to the driving backplane 100, and at least a portion of the light-emitting layer 202 is located within a plurality of pixel openings K. In one possible implementation, a portion of the light-emitting layer 202 may be located within a plurality of pixel openings K, and another portion may be located on the side of the pixel definition layer 1000 opposite to the driving backplane.

[0129] In this application, the display panel 000 may further include a first electrode layer 201 and a second electrode layer 203 located on both sides of the light-emitting layer 202. Here, the first electrode layer 201, the light-emitting layer 202, and the second electrode layer 203 may be used to form a plurality of light-emitting devices 200.

[0130] For example, the first electrode layer 201 can be located on the side of the pixel definition layer 1000 facing the driving backplate 100, and the light-emitting layer 202 and the second electrode layer 203 can both be located on the side of the pixel definition layer 1000 away from the driving backplate 100. Furthermore, the first electrode layer 201 can include multiple first electrodes corresponding one-to-one with the multiple pixel openings K, and the orthographic projection of each first electrode on the driving backplate 100 can lie within the orthographic projection of the corresponding pixel opening K on the driving backplate 100. Therefore, the portion of the light-emitting layer 202 distributed within each pixel opening K can contact the corresponding first electrode. In this case, for any pixel opening K, the first electrode corresponding to this pixel opening K (often also referred to as the anode), and the portions of the light-emitting layer 202 and the second electrode layer 203 distributed within this pixel opening K (often also referred to as the cathode) can constitute a light-emitting device 200.

[0131] The encapsulation layer 300 is located on the side of the plurality of light-emitting devices 200 facing away from the driving backplate 100. The encapsulation layer 300 may include a first inorganic encapsulation layer 301 and a second inorganic encapsulation layer 303 stacked together, and a third dimming layer 304 and a fourth dimming layer 305 located between the first inorganic encapsulation layer 301 and the second inorganic encapsulation layer 303. The encapsulation layer 300 can be used to encapsulate each light-emitting device 200, so that water and oxygen in the external environment are not easily corroded into the interior of the light-emitting device 200 and damaged.

[0132] The third dimming layer 304 has multiple fourth openings 304a, which correspond to multiple pixel openings K. The orthographic projection of a pixel opening K onto the driving backplane 100 lies within the orthographic projection of the corresponding fourth opening 304a onto the driving backplane 100. In one possible scenario, the multiple fourth openings 304a in the third dimming layer 304 correspond one-to-one with the multiple pixel openings K in the pixel definition layer 1000, as shown in Figure 1. The orthographic projection of the light-emitting device 200 in each pixel opening K onto the driving backplane 100 can lie within the orthographic projection of the corresponding multiple fourth openings 304a in the third dimming layer 304 onto the driving backplane 100. The side of the third dimming layer 304 facing the driving backplane 100 contacts the side of the first inorganic encapsulation layer 301 facing away from the driving backplane 100.

[0133] At least a portion of the fourth dimming layer 305 is located within the fourth opening 304a and in contact with the inner wall of the fourth opening 304a. The refractive index of the fourth dimming layer 305 is greater than that of the third dimming layer. For example, the difference between the refractive index of the fourth dimming layer 305 and the refractive index of the third dimming layer 304 is greater than 0.15. The portion of the fourth dimming layer 305 distributed within the fourth opening 304a also contacts the side of the first inorganic encapsulation layer 301 opposite to the drive backplate 100.

[0134] In this embodiment, the contact surface between the portion of the fourth dimming layer 305 located inside the fourth opening 304a and the third dimming layer 304 is an inclined surface, and the angle between the inclined surface and the surface where the openings of the fourth opening 304a are distributed on the side facing the drive back plate 100 is an obtuse angle W1.

[0135] In this scenario, after the light emitted by the light-emitting device 200 passes through the first inorganic encapsulation layer 301 and enters the fourth dimming layer 305, the light rays striking the contact surface between the portion of the fourth dimming layer 305 located inside the fourth opening 304a and the third dimming layer 304 are prone to total internal reflection due to the higher refractive index of the fourth dimming layer 305 compared to the third dimming layer 304. That is, the light rays striking the inner wall of the fourth opening 304a are highly likely to undergo total internal reflection, thereby altering the light transmission path. This allows the reflected light rays to exit from the side of the fourth dimming layer 305 away from the driving backplate 100, and the angle between the reflected light rays and the normal to the driving backplate 100 is smaller. This improves the light extraction efficiency of the display panel 000 at small viewing angles, thus increasing the brightness of the display panel 000 at the forward viewing angle without increasing the current, thereby reducing power consumption and extending the lifespan of the display panel 000.

[0136] It should be noted that the fourth dimming layer 305 can be the organic encapsulation layer 302 of the encapsulation layer 300, and the refractive index of the organic encapsulation layer 302 is greater than the refractive index of the third dimming layer 304.

[0137] Please continue to refer to Figure 12. The display panel 000 may also include: a touch layer 400, a light-absorbing layer 700, multiple color filter blocks 800, and a cover layer 900.

[0138] The touch layer 400 is located on the side of the encapsulation layer 300 away from the driving backplane 100. The touch layer 400 may include: a touch buffer layer 401, a first metal touch layer 402, a touch insulating layer 403, a second metal touch layer 404, and a touch protective layer 405 stacked in a direction away from the driving backplane 100.

[0139] The light-absorbing layer 700 is located on the side of the touch layer 400 opposite to the driving backplate 100, and the light-absorbing layer 700 has a plurality of third openings 700a. The plurality of third openings 700a correspond to a plurality of pixel openings K in the pixel definition layer 1000, and the orthographic projection of the pixel opening K on the driving backplate 100 lies within the orthographic projection of the corresponding third opening 700a on the driving backplate 100. In one possible case, the plurality of third openings 700a in the light-absorbing layer 700 and the plurality of pixel openings K in the pixel definition layer 1000 are in one-to-one correspondence, as shown in Figure 11. The orthographic projection of the light-emitting device 200 in each pixel opening K on the driving backplate 100 can lie within the orthographic projection of the corresponding third opening 700a in the light-absorbing layer 700 on the driving backplate 100.

[0140] Preferably, as shown in Figure 11, the plurality of third openings 700a correspond to the plurality of fourth openings 304a in the third dimming layer 304. The orthographic projection of the fourth opening 304a on the driving backplate 100 lies within the orthographic projection of the corresponding third opening 700a on the driving backplate 100. That is, there is no portion of the light-absorbing layer 700 distributed within the fourth opening 304a. In this case, the light at a small viewing angle after total internal reflection through the sidewall of the fourth opening 304a will not be absorbed by the light-absorbing layer 700, so that the light at a small viewing angle after total internal reflection through the sidewall of the fourth opening 304a is emitted from the third opening 700a as much as possible, thereby ensuring that the light emission efficiency of the display panel 000 is high in the small viewing angle position.

[0141] Please continue to refer to Figure 12. Multiple color filter blocks 800 are located on the side of the touch layer 400 away from the driving backplate 100. Multiple color filter blocks 800 correspond one-to-one with multiple third openings 700a. At least a portion of each color filter block 800 is located in the corresponding third opening 700a.

[0142] The cover layer 900 is located on the side of the multiple color filters 800 away from the drive backplate 100, protecting the color filters 800 and ensuring the flatness of the light-emitting side of the display panel 000.

[0143] In summary, the display panel provided in this application includes: a driving backplane, a pixel definition layer, an emissive layer, and an encapsulation layer. Light emitted from the emissive layer passes through the first inorganic encapsulation layer and enters the fourth dimming layer. Because the refractive index of the fourth dimming layer is greater than that of the third dimming layer, light rays incident on the contact surface between the portion of the fourth dimming layer located inside the fourth opening and the third dimming layer are prone to total internal reflection. That is, light rays incident on the inner wall of the fourth opening are highly likely to undergo total internal reflection, thereby changing the light transmission path. This allows the reflected light to exit from the side of the fourth dimming layer away from the driving backplane, and the angle between the reflected light and the normal to the driving backplane is smaller. This improves the light extraction efficiency of the display panel at small viewing angles, thus increasing the brightness of the display panel at the front viewing angle without increasing current, thereby reducing power consumption and extending the lifespan of the display panel.

[0144] This application also provides another display panel structure, which can similarly reduce the power consumption of the display panel. Please refer to Figures 13 and 14. Figure 13 is a top view of a partial structure of a display panel according to another embodiment of this application, and Figure 14 is a schematic diagram of the film layer structure of a display panel at DD' in Figure 13 according to another embodiment of this application. The display panel 000 may include: a driving backplane 100, a pixel definition layer 1000, a light-emitting layer 202, an encapsulation layer 300, a touch layer 400, and a fifth dimming layer 1100.

[0145] The pixel definition layer 1000 is located on one side of the driving backplane 100, and the pixel definition layer 1000 has multiple pixel openings K.

[0146] The light-emitting layer 202 is located on the side of the pixel definition layer 1000 opposite to the driving backplane 100, and at least a portion of the light-emitting layer 202 is located within a plurality of pixel openings K. In one possible implementation, a portion of the light-emitting layer 202 may be located within a plurality of pixel openings K, and another portion may be located on the side of the pixel definition layer 1000 opposite to the driving backplane.

[0147] In this application, the display panel 000 may further include a first electrode layer 201 and a second electrode layer 203 located on both sides of the light-emitting layer 202. Here, the first electrode layer 201, the light-emitting layer 202, and the second electrode layer 203 may be used to form a plurality of light-emitting devices 200.

[0148] For example, the first electrode layer 201 can be located on the side of the pixel definition layer 1000 facing the driving backplate 100, and the light-emitting layer 202 and the second electrode layer 203 can both be located on the side of the pixel definition layer 1000 away from the driving backplate 100. Furthermore, the first electrode layer 201 can include multiple first electrodes corresponding one-to-one with the multiple pixel openings K, and the orthographic projection of each first electrode on the driving backplate 100 can lie within the orthographic projection of the corresponding pixel opening K on the driving backplate 100. Therefore, the portion of the light-emitting layer 202 distributed within each pixel opening K can contact the corresponding first electrode. In this case, for any pixel opening K, the first electrode corresponding to this pixel opening K (often also referred to as the anode), and the portions of the light-emitting layer 202 and the second electrode layer 203 distributed within this pixel opening K (often also referred to as the cathode) can constitute a light-emitting device 200.

[0149] The encapsulation layer 300 is located on the side of the plurality of light-emitting devices 200 facing away from the driving backplate 100. The encapsulation layer 300 may include a first inorganic encapsulation layer 301 and a second inorganic encapsulation layer 303 stacked together, and an organic encapsulation layer 302 located between the first inorganic encapsulation layer 301 and the second inorganic encapsulation layer 303. The encapsulation layer 300 can be used to encapsulate each light-emitting device 200, so that water and oxygen in the external environment are not easily corroded into the interior of the light-emitting device 200 and damaged.

[0150] The touch layer 400 is located on the side of the encapsulation layer 300 away from the driving backplate 100. The touch layer 400 includes a first metal touch layer 402, a touch insulating layer 403 and a second metal touch layer 404 stacked in a direction away from the driving backplate 100.

[0151] The touch insulating layer 403 has multiple fifth openings 403a, which correspond to multiple pixel openings K. The orthographic projection of a pixel opening K on the driving backplane 100 lies within the orthographic projection of the corresponding fifth opening 403a on the driving backplane 100. In one possible scenario, the multiple fifth openings 403a in the touch insulating layer 403 correspond one-to-one with the multiple pixel openings K in the pixel definition layer 1000, as shown in Figure 13. The orthographic projection of the light-emitting device 200 in each pixel opening K on the driving backplane 100 can lie within the orthographic projection of the corresponding multiple fifth openings 403a in the touch insulating layer 403 on the driving backplane 100. The side of the touch insulating layer 403 facing the driving backplane 100 contacts the side of the encapsulation layer 300 opposite to the driving backplane 100.

[0152] It should be noted that the orthographic projections of the first metal touch layer 402 and the second metal touch layer 404 onto the driving backplate 100 are both located within the orthographic projection of the touch insulating layer 403 onto the driving backplate 100. Therefore, neither the first metal touch layer 402 nor the second metal touch layer 404 contains any portion that would extend into the fifth opening 403a.

[0153] At least a portion of the fifth dimming layer 1100 is located within the fifth opening 403a and contacts the inner wall of the fifth opening 403a. The refractive index of the fifth dimming layer 1100 is greater than the refractive index of the touch insulating layer 403. For example, the difference between the refractive index of the fifth dimming layer 1100 and the refractive index of the touch insulating layer 403 is greater than 0.15. The touch insulating layer 403 may be made of a low-refractive-index organic material. The fifth dimming layer 1100 may be made of a high-refractive-index organic material. The portion of the fifth dimming layer 1100 distributed within the fifth opening 403a also contacts the side of the encapsulation layer 300 opposite to the drive backplate 100.

[0154] In this embodiment, the contact surface between the portion of the fifth dimming layer 1100 located inside the fifth opening 403a and the touch insulating layer 403 is an inclined surface, and the angle between the inclined surface and the surface where the openings of the fifth opening 403a are distributed on the side facing the drive back plate 100 is an obtuse angle W2.

[0155] In this scenario, after the light emitted by the light-emitting device 200 passes through the encapsulation layer 300 and enters the fifth dimming layer 1100, the light rays striking the contact surface between the portion of the fifth dimming layer 1100 located inside the fifth opening 403a and the touch insulating layer 403 are highly susceptible to total internal reflection due to the higher refractive index of the fifth dimming layer 1100 compared to the touch insulating layer 403. That is, the light rays striking the inner wall of the fifth opening 403a are highly susceptible to total internal reflection, thereby altering the light transmission path. This allows the reflected light rays to exit from the side of the fifth dimming layer 1100 away from the driving backplate 100, and the angle between the reflected light rays and the normal to the driving backplate 100 is smaller. This improves the light extraction efficiency of the display panel 000 at narrow viewing angles, thus increasing the brightness of the display panel 000 at the front viewing angle without increasing the current, thereby reducing power consumption and extending the lifespan of the display panel 000.

[0156] It should be noted that, as shown in Figure 15, since the second metal touch layer 404 is located on the side of the touch insulating layer 403 away from the driving backplate 100, when etching the second metal touch layer 404, the part of the touch insulating layer 403 not covered by the second metal touch layer 404 will be over-etched. As a result, the distance between the part of the touch insulating layer 403 not covered by the second metal touch layer 404 away from the driving backplate 100 and the part of the encapsulation layer 300 away from the driving backplate 100 can be smaller than the distance between the part of the touch insulating layer 403 covered by the second metal touch layer 404 away from the driving backplate 100 and the part of the encapsulation layer 300 away from the driving backplate 100.

[0157] It should also be noted that the fifth dimming layer 1100 may further include a portion located on the side of the second metal touch layer 404 facing away from the driving back plate 100, for protecting the second metal touch layer 404 and ensuring the flatness of the touch layer 400 on the side facing away from the driving back plate 100. Similarly, in the embodiments shown in Figures 1 to 10 above, that is, when the second dimming layer 600 is located on the side of the touch layer 400 facing away from the driving back plate 100, the fifth dimming layer 1100 may also serve as a protective layer for protecting the touch layer 400, located between the touch layer 400 and the first dimming layer 500.

[0158] In the touch layer 400, one of the first metal touch layer 402 and the second metal touch layer 404 may include: a plurality of first touch electrodes and a plurality of second touch electrodes disposed on the same layer, and a connecting electrode for connecting two adjacent first touch electrodes; the other of the first metal touch layer 402 and the second metal touch layer 404 may include: a bridging electrode for connecting two adjacent first touch electrodes.

[0159] It should be noted that the bridging electrode and the connecting electrode can be arranged alternately, and they can be insulated from each other by the touch insulating layer 403. One of the first touch electrode and the second touch electrode can be a touch driving electrode, and the other can be a touch sensing electrode. The cooperation between the touch driving electrode and the touch sensing electrode enables the display panel to have touch functionality.

[0160] It should also be noted that both the touch driving electrode and the touch sensing electrode are mesh electrodes with multiple mesh holes. The orthographic projection of these mesh holes on the driving back plate 100 can cover the orthographic projection of the corresponding fifth opening 403a on the driving back plate 100, so as to ensure that the orthographic projections of the touch driving electrode and the touch sensing electrode on the driving back plate 100 are both located within the orthographic projection of the touch insulating layer 403 on the driving back plate 100.

[0161] Please refer to Figure 16, which is a schematic diagram of the film layer structure at DD' in Figure 13 of another display panel provided in another embodiment of this application. The touch layer 400 may further include a touch buffer layer 401, which may contact the side of the encapsulation layer 300 away from the driving backplate 100. By setting the touch buffer layer 401, it can be ensured that the first metal touch layer 402 and the second metal touch layer 404 can be better formed subsequently.

[0162] The display panel 000 may also include: a light-absorbing layer 700, multiple color filters 800, and a cover layer 900.

[0163] The light-absorbing layer 700 is located on the side of the fifth dimming layer 1100 opposite to the driving backplate 100, and the light-absorbing layer 700 has a plurality of third openings 700a. The plurality of third openings 700a correspond to a plurality of pixel openings K in the pixel definition layer 1000, and the orthographic projection of the pixel opening K on the driving backplate 100 lies within the orthographic projection of the corresponding third opening 700a on the driving backplate 100. In one possible case, the plurality of third openings 700a in the light-absorbing layer 700 and the plurality of pixel openings K in the pixel definition layer 1000 are in one-to-one correspondence, as shown in Figure 13. The orthographic projection of the light-emitting device 200 in each pixel opening K on the driving backplate 100 can lie within the orthographic projection of the corresponding third opening 700a in the light-absorbing layer 700 on the driving backplate 100.

[0164] Preferably, as shown in Figure 13, the plurality of third openings 700a correspond to the plurality of fifth openings 403a in the touch insulating layer 403. The orthographic projection of the fifth opening 403a on the driving backplate 100 is located within the orthographic projection of the corresponding third opening 700a on the driving backplate 100. That is, there is no portion of the light-absorbing layer 700 distributed within the fifth opening 403a. In this case, the light at a small viewing angle after total internal reflection through the sidewall of the fifth opening 403a will not be absorbed by the light-absorbing layer 700, so that the light at a small viewing angle after total internal reflection through the sidewall of the fifth opening 403a is emitted from the third opening 700a as much as possible, thereby ensuring that the light emission efficiency of the display panel 000 is high in the small viewing angle position.

[0165] Multiple color filter blocks 800 are located on the side of the fifth dimming layer 1100 away from the drive back plate 100. Each of the multiple color filter blocks 800 corresponds to a multiple third opening 700a, and at least a portion of each color filter block 800 is located in the corresponding third opening 700a.

[0166] The cover layer 900 is located on the side of the multiple color filters 800 away from the drive backplate 100, protecting the color filters 800 and ensuring the flatness of the light-emitting side of the display panel 000.

[0167] In summary, the display panel provided in this application includes: a driving backplane, a pixel definition layer, a light-emitting layer, an encapsulation layer, a touch layer, and a fifth dimming layer. Light emitted from the light-emitting layer passes through the encapsulation layer and enters the fifth dimming layer. Because the refractive index of the fifth dimming layer is greater than that of the touch insulating layer, light rays striking the contact surface between the portion of the fifth dimming layer located inside the fifth opening and the touch insulating layer are prone to total internal reflection. That is, light rays striking the inner wall of the fifth opening are highly likely to undergo total internal reflection, thereby changing the light transmission path. This allows the reflected light to exit from the side of the fifth dimming layer away from the driving backplane, and the angle between the reflected light and the normal to the driving backplane is smaller. This improves the light extraction efficiency of the display panel at small viewing angles, thus increasing the brightness of the display panel at the front viewing angle without increasing current, thereby reducing power consumption and extending the lifespan of the display panel.

[0168] It should be noted that the arrangement of the light-emitting devices 200 in this application can have various configurations. One exemplary embodiment is shown in Figure 17, which is a top view of a portion of the structure of a display panel provided in this application. The multiple light-emitting devices 200 include multiple first-type light-emitting devices 200a and multiple second-type light-emitting devices 200b. Both the first-type light-emitting devices 200a and the second-type light-emitting devices 200b are arranged in multiple columns along a first direction X1 and multiple rows along a second direction X2. Light-emitting devices 200 in adjacent rows can be staggered, and light-emitting devices 200 in adjacent columns can also be staggered. For example, the first-type light-emitting device 200a can be a green light-emitting device, and the second-type light-emitting device 200b can include alternating red light-emitting devices 200b1 and blue light-emitting devices 200b2.

[0169] The light-emitting device 200 can also have various shapes. For an exemplary embodiment, please refer to Figure 17. The shape of the light-emitting device 200 is circular. In other possible implementations, the shape of the light-emitting device 200 can also be rectangular or rhomboid.

[0170] It should also be noted that the top view of the partial structure of each display panel 000 in the above embodiments can be an enlarged view of the display panel 000 in region P shown in Figure 17.

[0171] This application also provides a display device, which includes: a power supply component and a display panel 000 electrically connected to the power supply component. The display panel 000 may include any of the display panels 000 given above. The display device may be any product or component with display function, such as a mobile phone, tablet computer, television, advertising machine, display screen, digital photo frame, etc.

[0172] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0173] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0174] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display panel, characterized in that, include: The driving backplane, pixel definition layer, light-emitting layer, encapsulation layer, touch layer, first dimming layer and second dimming layer; The pixel definition layer is located on one side of the driving backplate, and the pixel definition layer has multiple pixel openings; The light-emitting layer is located on the side of the pixel definition layer opposite to the driving backplate, and at least a portion of the light-emitting layer is located within the plurality of pixel openings; The encapsulation layer is located on the side of the light-emitting layer that is away from the driving backplate; The touch layer is located on the side of the encapsulation layer opposite to the driving backplate. The touch layer has a plurality of first openings, which correspond to a plurality of pixel openings. The orthographic projection of the pixel opening on the driving backplate is located within the orthographic projection of the corresponding first opening on the driving backplate. The first dimming layer at least covers the inner wall of the first opening, and the first dimming layer has a plurality of second openings, the plurality of second openings corresponding to a plurality of pixel openings, and the orthographic projection of the pixel opening on the driving back plate is located within the orthographic projection of the corresponding second opening on the driving back plate; At least a portion of the second dimming layer is located within the second opening and is in contact with the inner wall of the second opening; The refractive index of the second dimming layer is greater than that of the first dimming layer.

2. The display panel according to claim 1, characterized in that, The portion of the first dimming layer distributed within the first opening faces the drive backplate and contacts the side of the encapsulation layer opposite to the drive backplate. Furthermore, the portion of the second dimming layer distributed within the second opening contacts the side of the encapsulation layer opposite to the drive backplate.

3. The display panel according to claim 2, characterized in that, The distance between the side of the second dimming layer facing away from the driving backplate and the side of the encapsulation layer facing away from the driving backplate is greater than or equal to the distance between the side of the first dimming layer facing away from the driving backplate and the side of the encapsulation layer facing away from the driving backplate.

4. The display panel according to claim 3, characterized in that, The first dimming layer also covers the side of the touch layer opposite to the driving backplate, and the second dimming layer also covers the side of the first dimming layer opposite to the driving backplate.

5. The display panel according to claim 4, characterized in that, The display panel further includes: a light-absorbing layer, the light-absorbing layer having a plurality of third openings, the plurality of third openings corresponding to a plurality of pixel openings, and the orthographic projection of the pixel openings on the driving back panel being located within the orthographic projection of the corresponding third openings on the driving back panel; The light-absorbing layer is located between the first dimming layer and the second dimming layer, or the light-absorbing layer is located on the side of the second dimming layer away from the drive backplate.

6. The display panel according to claim 5, characterized in that, in, When the light-absorbing layer is located between the first dimming layer and the second dimming layer, the orthographic projection of the light-absorbing layer on the drive back plate does not coincide with the orthographic projection of the first opening on the drive back plate.

7. The display panel according to claim 5, characterized in that, The second dimming layer includes: a first part and a second part connected to each other, the first part covering the side of the first dimming layer away from the drive back plate, and the second part located in the second opening and in contact with the inner wall of the second opening; Wherein, the distance between the side of the second part away from the drive backplate and the side of the encapsulation layer away from the drive backplate is less than or equal to the distance between the side of the first part away from the drive backplate and the side of the encapsulation layer away from the drive backplate.

8. The display panel according to claim 5, characterized in that, The display panel further includes: a plurality of color filter blocks, all of which are located on the side of the second dimming layer away from the driving back plate; The plurality of color filter blocks correspond one-to-one with the plurality of pixel openings, and the orthographic projection of the pixel opening on the driving back plate is located within the orthographic projection of the corresponding color filter block on the driving back plate.

9. The display panel according to claim 8, characterized in that, When the light-absorbing layer is located between the first dimming layer and the second dimming layer, the second dimming layer has a plurality of grooves on the side away from the driving back plate. The plurality of grooves correspond one-to-one with the plurality of color filters. A portion of the color filters is located inside the corresponding groove, and another portion of the color filters is located outside the corresponding groove.

10. The display panel according to claim 9, characterized in that, The angle between the inner wall of the groove and the bottom surface of the groove is an obtuse angle.

11. The display panel according to claim 9, characterized in that, The display panel further includes an auxiliary light-absorbing layer, which is located on the side of the color filter block facing away from the driving back plate; The orthographic projection of the auxiliary light-absorbing layer on the drive back plate overlaps with the orthographic projection of the portion of the color filter block located outside the groove on the drive back plate.

12. The display panel according to claim 1, characterized in that, The second dimming layer has a light filtering property and includes a plurality of color filter blocks, wherein the plurality of color filter blocks correspond one-to-one with the plurality of second openings, and at least a portion of the color filter blocks are located in the corresponding second openings and are in contact with the inner wall of the second openings.

13. The display panel according to claim 12, characterized in that, A portion of the color filter block is located inside the corresponding second opening, and another portion is located outside the corresponding second opening; Among them, for two adjacent color filter blocks of different colors, in the area between the two color filter blocks, the portion of one color filter block located outside the second opening is stacked with the portion of the other color filter block located outside the second opening; Alternatively, the display panel may further include a light-absorbing layer located on the side of the plurality of color filters facing away from the driving backplate, and the light-absorbing layer covering the portion of the color filters located outside the second opening.

14. The display panel according to any one of claims 8 to 13, characterized in that, The display panel further includes a cover layer located on the side of the plurality of color filter blocks opposite to the drive backplate.

15. The display panel according to any one of claims 1 to 13, characterized in that, The touch layer includes: a touch buffer layer, a first metal touch layer, a touch insulating layer and a second metal touch layer stacked in a direction away from the drive backplate, wherein the first opening sequentially penetrates the second metal touch layer, the touch insulating layer, the first metal touch layer and the touch buffer layer.

16. The display panel according to any one of claims 1 to 13, characterized in that, The angle between the portion of the first dimming layer distributed within the first opening and the side facing the drive backplate and the inner wall of the second opening is an acute angle.

17. A display panel, characterized in that, include: Driver backplane, pixel definition layer, emissive layer and encapsulation layer; The pixel definition layer is located on one side of the driving backplate, and the pixel definition layer has multiple pixel openings; The light-emitting layer is located on the side of the pixel definition layer opposite to the driving backplate, and at least a portion of the light-emitting layer is located within the plurality of pixel openings; The encapsulation layer is located on the side of the light-emitting layer away from the driving backplate. The encapsulation layer includes a first inorganic encapsulation layer and a second inorganic encapsulation layer stacked together, and a third dimming layer and a fourth dimming layer located between the first inorganic encapsulation layer and the second inorganic encapsulation layer. The third dimming layer has a plurality of fourth openings, which correspond to a plurality of pixel openings. The orthographic projection of the pixel opening on the driving back plate is located within the orthographic projection of the corresponding fourth opening on the driving back plate. At least a portion of the fourth dimming layer is located within the fourth opening and is in contact with the inner wall of the fourth opening. The refractive index of the fourth dimming layer is greater than that of the third dimming layer.

18. The display panel according to claim 17, characterized in that, The third dimming layer is in contact with the side of the first inorganic encapsulation layer facing away from the drive backplate on the side ...

19. A display panel, characterized in that, include: The driving backplane, pixel definition layer, light emission layer, encapsulation layer, touch layer, and fifth dimming layer; The pixel definition layer is located on one side of the driving backplate, and the pixel definition layer has multiple pixel openings; The light-emitting layer is located on the side of the pixel definition layer opposite to the driving backplate, and at least a portion of the light-emitting layer is located within the plurality of pixel openings; The encapsulation layer is located on the side of the light-emitting layer that is away from the driving backplate; The touch layer is located on the side of the encapsulation layer away from the driving backplate. The touch layer includes a first metal touch layer, a touch insulating layer and a second metal touch layer stacked in a direction away from the driving backplate. The touch insulating layer has a plurality of fifth openings, which correspond to a plurality of pixel openings. The orthographic projection of the pixel opening on the driving backplate is located within the orthographic projection of the corresponding fifth opening on the driving backplate. At least a portion of the fifth dimming layer is located within the fifth opening and is in contact with the inner wall of the fifth opening; The refractive index of the fifth dimming layer is greater than that of the touch insulating layer.

20. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 19.

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