Display panel and display apparatus

Abstract

The present disclosure relates to the technical field of display and provides a display panel and a display apparatus. The display panel comprises a driving backplane, light-emitting devices, an encapsulation layer, a first functional layer, and a second functional layer. The first functional layer comprises a plurality of first light-regulating units in one-to-one correspondence with the plurality of light-emitting devices. After light emitted by each light-emitting device passes through the encapsulation layer and enters a first light-regulating unit, because the second functional layer is in contact with a side surface of the first light-regulating unit and the refractive index of the first light-regulating unit is greater than the refractive index of the second functional layer, when the included angle between the side surface of the first light-regulating unit and the surface of the first light-regulating unit facing the driving backplane is less than or equal to 90°, the incident angle of the light emitted to the side surface of the first light-regulating unit is small, the light is refracted into the second functional layer, and the refractive angle is greater than the incident angle, so that the included angle between the refracted light and the normal of the driving backplane is small when the refracted light is emitted. In this way, the brightness of the display panel from a front viewing angle can be increased without increasing a current.

Description

Display panel and display device

[0001] This application claims priority to Chinese Patent Application No. 202411720437.2, filed on November 27, 2024, entitled “Display Panel and Display Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0003] Organic light-emitting diode (OLED) display panels are hailed as the next generation of display devices due to their advantages such as self-illumination, high efficiency, vibrant colors, thinness, energy saving, and rollability, and have attracted increasing attention in recent years.

[0004] However, current OLED displays have relatively low light emission 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

[0005] This application provides a display panel and a display device. It can solve the problem of low light extraction efficiency in existing OLED display panels. The technical solution is as follows:

[0006] On the one hand, a display panel is provided, including: a driving backplane, a light-emitting device, an encapsulation layer, a first functional layer, and a second functional layer;

[0007] The number of light-emitting devices is multiple, and all of the multiple light-emitting devices are distributed on the same side of the driving back plate;

[0008] The encapsulation layer is located on the side of the plurality of light-emitting devices that is away from the driving backplate;

[0009] The first functional layer is located on the side of the encapsulation layer away from the driving backplane, and the first functional layer includes a plurality of first dimming units corresponding one-to-one with the plurality of light-emitting devices, and the orthographic projection of the light-emitting device on the driving backplane is located within the orthographic projection of the corresponding first dimming unit on the driving backplane.

[0010] The second functional layer is located on the side of the first functional layer away from the driving backplate. The second functional layer is in contact with the side of each of the first dimming units, and the refractive index of the first dimming unit is greater than the refractive index of the second functional layer.

[0011] Wherein, the angle between the side of the first dimming unit and the side of the first dimming unit facing the drive back plate is less than or equal to 90°.

[0012] Optionally, the first functional layer is made of a transparent material, and the second functional layer is made of a light-filtering material;

[0013] The second functional layer includes multiple color filters, each of which corresponds to one of the first dimming units. The color filters cover the side of the corresponding first dimming unit and the side of the corresponding first dimming unit that faces away from the drive backplate.

[0014] Optionally, the display panel further includes a third functional layer, which is located on the side of the first functional layer facing the driving backplate, and the refractive index of the third functional layer is less than that of the first functional layer.

[0015] Optionally, the third functional layer has a plurality of first openings, each of which corresponds to a plurality of first dimming units and a plurality of light-emitting devices.

[0016] At least a portion of the first dimming unit is located within the corresponding first opening and is in contact with the inner wall of the corresponding first opening;

[0017] The orthographic projection of the light-emitting device on the driving back plate is located within the orthographic projection of the corresponding first opening on the driving back plate.

[0018] Optionally, a portion of the first dimming unit is located inside the corresponding first opening, and another portion is located outside the first opening;

[0019] In this unit, the side of the portion of the first dimming unit located outside the first opening is in contact with the second functional layer.

[0020] Optionally, the third functional layer is a film layer structure that is integrally formed, and the side of the third functional layer facing away from the driving back plate is in contact with the side of the first dimming unit facing the driving back plate.

[0021] Optionally, the second functional layer further includes: an auxiliary color group structure located between two adjacent color filter blocks, wherein the orthographic projection of the auxiliary color group structure on the drive back panel does not coincide with the orthographic projection of the first dimming unit on the drive back panel;

[0022] The auxiliary color group structure includes at least two auxiliary color resists of different colors stacked together, and the color of the auxiliary color resists is the same as the color of a portion of the color filter blocks.

[0023] Optionally, the display panel further includes a cover layer located on the side of the second functional layer opposite to the driving backplate.

[0024] Optionally, the first functional layer is made of a light-filtering material, and the first dimming unit in the first functional layer is a color filter block; the second functional layer is made of a transparent material; the second functional layer covers the side of the first dimming unit and the side of the first dimming unit facing away from the drive backplate.

[0025] Optionally, the display panel further includes a connection functional layer located on the side of the first functional layer facing the driving backplate.

[0026] Optionally, the connection function layer includes a plurality of second dimming units that correspond one-to-one with the plurality of first dimming units, wherein the orthographic projection of the first dimming unit on the drive back panel is located within the orthographic projection of the corresponding second dimming unit on the drive back panel.

[0027] The side of the second dimming unit is in contact with the second functional layer, and the refractive index of the second dimming unit is greater than the refractive index of the second functional layer; the angle between the side of the second dimming unit and the side of the second dimming unit facing the drive back plate is less than or equal to 90°.

[0028] Optionally, the connecting functional layer is a film structure that is integrally formed, and the refractive index of the connecting functional layer is less than the refractive index of the first dimming unit.

[0029] Optionally, the second functional layer is a film layer structure that is integrally formed, and the second functional layer is reused with the cover layer in the display panel.

[0030] Optionally, the display panel further includes: a touch layer and a light-absorbing layer;

[0031] The touch layer is located between the encapsulation layer and the first functional layer; the light-absorbing layer is located on the side of the touch layer opposite to the driving backplate.

[0032] On the other hand, a display device is provided, comprising:

[0033] The display panel and the driver chip are provided, wherein the display panel is the display panel according to any one of claims 1 to 14, and the driver chip is used to apply a driving signal to the display panel.

[0034] The beneficial effects of the technical solutions provided in this application include at least the following:

[0035] A display panel includes: a driving backplane, light-emitting devices, an encapsulation layer, a first functional layer, and a second functional layer. The first functional layer includes a plurality of first dimming units, each corresponding to one of the light-emitting devices. The side of each first dimming unit contacts the second functional layer, and the angle between the side of the first dimming unit and the side facing the driving backplane is less than or equal to 90°. When light emitted from the light-emitting devices passes through the encapsulation layer and enters the corresponding first dimming unit, the second functional layer can contact the side of the first dimming unit, and the refractive index of the first dimming unit is greater than that of the second functional layer. Therefore, when the angle between the side of the first dimming unit and the side facing the driving backplane is less than or equal to 90°, the incident angle of the light rays entering the first dimming unit that strike the side of the first dimming unit is smaller. This causes the light rays to refract into the second functional layer, and the angle of refraction of the light rays refracted into the second functional layer is greater than the incident angle of the light rays striking the side of the first dimming unit. In other words, the light emitted from the side of the first dimming unit is refracted at an angle greater than the angle of incidence, thus altering the light's transmission path. This allows the refracted light to exit from the side away from the second functional layer, and the angle between the refracted light and the normal to the driving backplate is smaller. This improves the light extraction efficiency of the display panel at narrow viewing angles, thereby increasing the brightness of the display panel at the front viewing angle without increasing current. This reduces the power consumption of the display panel and extends its lifespan. Attached Figure Description

[0036] 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.

[0037] Figure 1 is a top view of a display panel provided in an embodiment of this application;

[0038] Figure 2 is a schematic diagram of the film structure of a display panel at A-A' in Figure 1, according to an embodiment of this application.

[0039] Figure 3 is a light emission effect diagram of a light-emitting device in a display panel provided in an embodiment of this application;

[0040] Figure 4 is a schematic diagram of the film layer structure of another display panel provided in an embodiment of this application;

[0041] Figure 5 is a schematic diagram of the film layer structure of another display panel provided in an embodiment of this application;

[0042] Figure 6 is a light emission effect diagram of a certain light-emitting device in another display panel provided in an embodiment of this application;

[0043] Figure 7 is a schematic diagram of the film layer structure of another display panel provided in an embodiment of this application;

[0044] Figure 8 is a schematic diagram of the film layer structure of a display panel according to another embodiment of this application;

[0045] Figure 9 is a schematic diagram of the film layer structure of another display panel provided in another embodiment of this application;

[0046] Figure 10 is a schematic diagram of the film layer structure of another display panel provided in another embodiment of this application;

[0047] Figure 11 is a schematic diagram of the film layer structure of another display panel provided in another embodiment of this application;

[0048] Figure 12 is a top view of a light-emitting device in a display panel according to an embodiment of this application;

[0049] Figure 13 is a schematic diagram of the film layer structure of a display panel according to another embodiment of this application;

[0050] Figure 14 is a schematic diagram of the film layer structure of another display panel provided in another embodiment of this application;

[0051] Figure 15 is a schematic diagram of the film layer structure of another display panel provided in another embodiment of this application;

[0052] Figure 16 is a schematic diagram of the film layer structure of another display panel provided in another embodiment of this application;

[0053] Figure 17 is a light emission effect diagram of a certain light-emitting device in another display panel provided in the embodiment of this application;

[0054] Figure 18 is a top view of a light-emitting device in another display panel provided in an embodiment of this application. Detailed Implementation

[0055] 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.

[0056] Please refer to Figures 1 and 2. Figure 1 is a top view of a display panel provided in an embodiment of this application, and Figure 2 is a schematic diagram of the film layer structure of a display panel provided in an embodiment of this application at point A-A' in Figure 1. The display panel 000 may include: a driving backplate 100, a light-emitting device 200, an encapsulation layer 300, a first functional layer 400, and a second functional layer 500.

[0057] The display panel 000 contains multiple light-emitting devices 200, all of which are distributed on the same side of the driving backplate 100. These multiple light-emitting devices 200 can be electrically connected to the driving backplate 100, which can drive them to emit light, enabling the display panel 000 to display a corresponding image.

[0058] The encapsulation layer 300 in the display panel 000 is located on the side of the multiple light-emitting devices 200 away from the driving backplate 100. 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.

[0059] The first functional layer 400 in the display panel 000 is located on the side of the encapsulation layer 300 away from the driving backplate 100, and the first functional layer 400 includes a plurality of first dimming units 410 corresponding one-to-one with a plurality of light-emitting devices 200. Here, the orthographic projection of the light-emitting device 200 on the driving backplate 100 is located within the orthographic projection of the corresponding first dimming unit 410 on the driving backplate 100.

[0060] The second functional layer 500 in the display panel 000 is located on the side of the first functional layer 400 away from the driving back plate 100. The second functional layer 500 is in contact with the side of each first dimming unit 410, and the refractive index of the first dimming unit 410 is greater than the refractive index of the second functional layer 500.

[0061] In this embodiment, the angle between the side of the first dimming unit 410 and the side of the first dimming unit 410 facing the drive backplate 100 is less than or equal to 90°. For example, the angle between the side of the first dimming unit 410 and the side of the first dimming unit 410 facing the drive backplate 100 can be in the range of 65° to 85°.

[0062] In this case, please refer to Figure 3, which is a light emission effect diagram of a certain light-emitting device in a display panel provided in an embodiment of this application. The light emitted by this light-emitting device 200 passes through the encapsulation layer 300 and enters the corresponding first dimming unit 410. Since the second functional layer 500 can contact the side of the first dimming unit 410, and the refractive index of the first dimming unit 410 is greater than that of the second functional layer 500, when the angle between the side of the first dimming unit 410 and the side of the first dimming unit 410 facing the driving backplate 100 is less than or equal to 90°, the incident angle of the light rays entering the first dimming unit 410 that strike the side of the first dimming unit 410 is small. This causes the light rays to be refracted into the second functional layer 500, and the refraction angle of the light rays refracted into the second functional layer 500 is greater than the incident angle of the light rays striking the side of the first dimming unit 410. In other words, the light emitted from the side of the first dimming unit 410 is refracted at an angle greater than the angle of incidence, thus altering the light transmission path. This allows the refracted light to exit from the side away from the second functional layer 500, and the angle between the refracted light 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, thereby increasing the brightness of the display panel 000 at the forward viewing angle without increasing current. This reduces the power consumption of the display panel 000 and extends its lifespan.

[0063] In summary, the display panel provided in this application includes: a driving backplane, light-emitting devices, an encapsulation layer, a first functional layer, and a second functional layer. The first functional layer includes multiple first dimming units, each corresponding to one of the light-emitting devices. The side of each first dimming unit contacts the second functional layer, and the angle between the side of the first dimming unit and the side facing the driving backplane is less than or equal to 90°. When light emitted from the light-emitting devices passes through the encapsulation layer and enters the corresponding first dimming unit, the second functional layer can contact the side of the first dimming unit, and the refractive index of the first dimming unit is greater than that of the second functional layer. Therefore, when the angle between the side of the first dimming unit and the side facing the driving backplane is less than or equal to 90°, the incident angle of the light rays entering the first dimming unit that strike the side of the first dimming unit is smaller. This causes the light rays to refract into the second functional layer, and the angle of refraction of the light rays refracted into the second functional layer is greater than the incident angle of the light rays striking the side of the first dimming unit. In other words, the light emitted from the side of the first dimming unit is refracted at an angle greater than the angle of incidence, thus altering the light's transmission path. This allows the refracted light to exit from the side away from the second functional layer, and the angle between the refracted light and the normal to the driving backplate is smaller. This improves the light extraction efficiency of the display panel at narrow viewing angles, thereby increasing the brightness of the display panel at the front viewing angle without increasing current. This reduces the power consumption of the display panel and extends its lifespan.

[0064] In this embodiment of the application, the light-emitting device 200 in the display panel 000 includes a first electrode 210, a light-emitting layer 220, and a second electrode 230 stacked along a direction away from the driving backplate 100. Here, the light-emitting layer 220 may include a hole injection layer, a hole transport layer, a light-emitting material layer, an electron transport layer, and an electron injection layer stacked together.

[0065] The first electrode 210 is electrically connected to the driving backplane. When a voltage is applied to the first electrode, an electric field is formed between the first electrode 210 and the second electrode 230. Thus, the hole injection layer can inject holes into the hole transport layer, which then transports them to the light-emitting material layer. Similarly, the electron injection layer can inject electrons into the electron transport layer, which then transports them to the light-emitting material layer. Holes and electrons combine to form high-energy excitons within the light-emitting material layer. These high-energy excitons are unstable and easily transition to low-energy excitons, releasing energy and generating photons to emit light within a certain wavelength range.

[0066] It should be noted that the display panel 000 also includes a pixel definition layer 1100, and the light-emitting device 200 and the pixel definition layer 1100 are located on the same side of the driving back panel 000. The pixel definition layer 1100 in the display panel 000 has multiple pixel openings K, and each pixel opening K corresponds one-to-one with a multiple light-emitting device 200, with at least a portion of the light-emitting device 200 located in the corresponding pixel opening K.

[0067] The pixel definition layer 1100 may have light-absorbing properties. For example, the pixel definition layer 1100 may be made of a black light-absorbing material, so that the pixel definition layer 1100 can absorb ambient light incident on the display panel 000, thereby reducing the reflectivity of the display panel 000 to ambient light.

[0068] In this embodiment of the application, the display panel 000 may further include a touch layer 600 located between the encapsulation layer 300 and the first functional layer 400. The touch layer 600 in the display panel 000 may include a first metal touch layer 610, a second metal touch layer 620, and a touch insulating layer 630 located between the first metal touch layer 610 and the second metal touch layer 620.

[0069] Here, one of the first metal touch layer 610 and the second metal touch layer 620 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 610 and the second metal touch layer 620 may include: a bridging electrode for connecting two adjacent first touch electrodes.

[0070] 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 630. 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.

[0071] It should also be noted that both the touch driving electrode and the touch sensing electrode are mesh-shaped electrodes with multiple mesh holes. That is, the first touch layer 610 has multiple first mesh holes, each corresponding to one of the multiple light-emitting devices 200, and the orthographic projection of the light-emitting device 200 on the driving backplate 100 lies within the orthographic projection of the corresponding first mesh hole on the driving backplate 100; the second touch layer 620 has multiple second mesh holes, each corresponding to one of the multiple light-emitting devices 200, and the orthographic projection of the light-emitting device 200 on the driving backplate 100 lies within the orthographic projection of the corresponding second mesh hole on the driving backplate 100. Furthermore, to ensure that the touch layer 600 does not block the light emitted by the light-emitting device 200, the touch insulating layer 630 can be made of a light-transmitting material. In this way, the light emitted from the light-emitting device 200 can pass through the corresponding first mesh hole, the touch insulating layer 630, and the corresponding second mesh hole before exiting, ensuring that the light emitted from the light-emitting device 200 is not blocked by the touch layer 600.

[0072] In this embodiment, the first functional layer 400 in the display panel 000 can be made of various materials, and the second functional layer 500 in the display panel 000 can also be made of various materials. Regarding the first functional layer 400 and the second functional layer 500 made of different materials, this embodiment will illustrate the following two optional implementation methods as examples.

[0073] In the first optional implementation, please refer to Figure 4, which is a schematic diagram of another film layer structure of a display panel provided in an embodiment of this application. The first functional layer 400 in the display panel 000 is made of a transparent material, and the second functional layer 500 in the display panel 000 is made of a light-filtering material. That is, the first functional layer 400 is light-transmitting, and light of any color can pass through the first functional layer 400; the second functional layer 500 is light-filtering, and the second functional layer 500 is not completely transparent, only light of a specific color can pass through the second functional layer 500.

[0074] In this configuration, the second functional layer 500 in the display panel 000 may include a plurality of color filters 510. These color filters 510 may include a red filter, a green filter, and a blue filter. Correspondingly, only red light can pass through the red filter, only green light can pass through the green filter, and only blue light can pass through the blue filter.

[0075] The multiple color filters 510 in the second functional layer 500 can correspond one-to-one with the multiple first dimming units 410, and the color filters 510 cover the side of the corresponding first dimming unit 410 and the side of the corresponding first dimming unit 410 facing away from the driving backplate 100. In this way, after refraction, only light of a specific color can pass through the corresponding color filter 510 when light emitted from the side of the first dimming unit 410 in the first functional layer 400 is emitted from the first dimming unit 410, thereby improving the light emission efficiency of the specific color at a small viewing angle.

[0076] In this embodiment of the application, when the first functional layer 400 is made of a transparent material and the second functional layer 500 is made of a filter material, the refractive index of the first functional layer 400 can be in the range of 1.7 to 1.8, and the refractive index of the second functional layer 500 can be in the range of 1.5 to 1.6, so as to ensure that the refractive index of the first dimming unit 410 in the first functional layer 400 can be greater than the refractive index of the corresponding color filter block 510 in the second functional layer 500.

[0077] It should be noted that, as shown in Figure 4, when the first functional layer 400 is made of a transparent material, a transparent organic material with good adhesion can usually be used to manufacture the first functional layer 400. In this case, since the first functional layer 400 is disposed on the side of each color filter block 510 in the second functional layer 500 facing the driving back plate 100, and the first functional layer 400 can be located on the side of the touch insulating layer 630 in the touch layer 600 facing away from the driving back plate 100, the side of each first dimming unit 410 in the first functional layer 400 facing the driving back plate 100 can contact the touch insulating layer 630; while the side of each first dimming unit 410 in the first functional layer 400 facing away from the driving back plate 100 can contact the corresponding color filter block 510 in the second functional layer 500. Furthermore, since the first functional layer 400 is made of a transparent organic material with good adhesion, each of the first dimming units 410 in the first functional layer 400 has good adhesion, which makes the color filter block 510 more firmly connected to the touch insulating layer 630 through the first dimming unit 410. This ensures that the probability of the color filter block 510 peeling off from the touch insulating layer 630 is low, effectively improving the reliability of the display panel 000.

[0078] It should also be noted that, to ensure that the color filter 510 in the second functional layer 500 does not come into contact with the touch insulating layer 630 in the touch layer 600, as shown in Figure 5, the display panel 000 may also include a third functional layer 700. This third functional layer 700 may be located on the side of the first functional layer 400 facing the driving backplate 100. Alternatively, the third functional layer 700 may be located on the side of the touch insulating layer 630 away from the driving backplate 100. This ensures that the portion of the color filter 510 protruding from the first dimming unit 410 and the touch insulating layer 630 are blocked by the third functional layer 700, thereby ensuring that there is no area of ​​direct contact between the color filter 510 and the touch insulating layer 630.

[0079] For example, the third functional layer 700 can be made of a transparent material to ensure that the light emitted by the light-emitting device 200 is not blocked by the third functional layer 700. Here, the third functional layer 700 can also be made of a transparent organic material with good adhesion to further reduce the probability of the color filter block 510 peeling off from the touch insulating layer 630.

[0080] The refractive index of the third functional layer 700 is less than that of the first functional layer 400. For example, the refractive index of the third functional layer 700 can be in the range of 1.45 to 1.5.

[0081] In this application embodiment, the third functional layer 700 in the display panel 000 has multiple possible design methods. This application will illustrate the following two possible design methods as examples:

[0082] For a first possible design, please refer to Figures 5, 7, and 8. Figure 5 is a schematic diagram of the film layer structure of another display panel provided in an embodiment of this application; Figure 7 is a schematic diagram of the film layer structure of yet another display panel provided in an embodiment of this application; and Figure 8 is a schematic diagram of the film layer structure of a display panel provided in another embodiment of this application. The third functional layer 700 in the display panel 000 has a plurality of first openings 700a. Each of the plurality of first openings 700a in the third functional layer 700 corresponds one-to-one with a plurality of first dimming units 410 in the first functional layer 400, and also corresponds one-to-one with a plurality of light-emitting devices 200 in the display panel 000. The orthographic projection of the light-emitting device 200 on the driving backplate 100 lies within the orthographic projection of the corresponding first opening 700a on the driving backplate 100. At least a portion of the first dimming unit 410 lies within the corresponding first opening 700a and is in contact with the inner wall of the corresponding first opening 700a.

[0083] In this application, the third functional layer 700 in the display panel 000 has a slope S on the side near the first opening 700a, and the angle between the slope S and the side of the third functional layer 700 facing the driving back plate 100 is less than 90°. That is, the angle between the portion of the first functional layer 400 distributed within the first opening 700a facing the driving back plate 100 and the inner wall of the first opening 700a is greater than 90°. For example, the angle between the slope S and the side of the third functional layer 700 facing the driving back plate 100 can be in the range of 45° to 85°.

[0084] In this case, please refer to Figure 6, which is a light emission effect diagram of a certain light-emitting device in another display panel provided in this application embodiment. After the light emitted by this light-emitting device 200 passes through the encapsulation layer 300 and enters the corresponding first dimming unit 410, since the first dimming unit 410 can contact the inner wall of the first opening 700a of the third functional layer 700, and the refractive index of the first dimming unit 410 is greater than the refractive index of the third functional layer 700, when the angle between the part of the first functional layer 400 distributed in the first opening 700a facing the driving back plate 100 and the inner wall of the first opening 700a is greater than 90°, the incident angle of the light entering the first dimming unit 410 that strikes the inner wall of the first opening 700a is large. This light is very prone to total internal reflection. The light that undergoes total internal reflection will not enter the third functional layer 700 but will be total internally reflected again into the first dimming unit 410. In other words, light rays incident on the inner wall of the first opening 700a are highly susceptible to total reflection, thereby altering the light transmission path. This allows the totally reflected light rays to exit from the side of the first dimming unit 410 away from the driving backplate 100, and the angle between the totally reflected light rays and the normal to the driving backplate 100 is relatively small. This further improves the light emission efficiency of the display panel 000 at narrow viewing angles.

[0085] It should be noted that the distance between the side of the first dimming unit 410 in the first functional layer 400 facing away from the driving back plate 100 and the driving back plate 100 is greater than the distance between the side of the third functional layer 700 facing away from the driving back plate 100 and the driving back plate 100. That is, the thickness of the first dimming unit 410 is greater than the thickness of the third functional layer 700. Thus, a portion of the first dimming unit 410 can be located within the corresponding first opening 700a, and another portion of the first dimming unit 410 can be located outside the first opening 700a. For example, the thickness of the first dimming unit 410 in the first functional layer 400 can range from 2 micrometers to 4 micrometers, the thickness of the color filter block 510 in the second functional layer 500 can range from 2 micrometers to 4 micrometers, and the thickness of the third functional layer 700 in the display panel 000 can range from 1 micrometer to 1.5 micrometers.

[0086] Thus, the side of the portion of the first dimming unit 410 located outside the first opening 700a can contact the second functional layer 500, so that the light emitted from the side of the portion of the first dimming unit 410 located outside the first opening 700a can be refracted and the angle of refraction of the light is greater than the angle of incidence, thereby changing the transmission path of the light.

[0087] Furthermore, the thicker the first dimming unit 410, the larger the area of ​​the side of the portion of the first dimming unit 410 located outside the first opening 700a that contacts the second functional layer 500, thereby increasing the area where light is refracted. 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.

[0088] For a second possible design, please refer to Figures 9, 10, and 11. Figure 9 is a schematic diagram of the film layer structure of another display panel provided in another embodiment of this application. Figure 10 is a schematic diagram of the film layer structure of yet another display panel provided in another embodiment of this application. Figure 11 is a schematic diagram of the film layer structure of yet another display panel provided in another embodiment of this application. The third functional layer 700 in the display panel 000 is a film layer structure that is integrally formed, and the side of the third functional layer 700 facing away from the driving back plate 100 is in contact with the side of the first dimming unit 410 in the first functional layer 400 facing the driving back plate 100.

[0089] It should be noted that since the third functional layer 700 is a film structure that is integrally formed, if the third functional layer 700 is made of a material with a high refractive index, the stress in the third functional layer 700 will be large, which may easily cause problems such as warping. Therefore, the refractive index of the third functional layer 700 is less than the refractive index of the first dimming unit 410 in the first functional layer 400.

[0090] In this embodiment of the application, when the display panel 000 includes a third functional layer 700, the color filter block 510 in the second functional layer 500 has several possible configurations. The following describes two possible configurations as examples:

[0091] In the first possible scenario, the orthographic projection of any color filter block 510 in the second functional layer 500 onto the driving backplate 100 does not coincide with the orthographic projection of another color filter block 510 onto the driving backplate 100. In this case, as shown in Figures 5 to 11, the display panel 000 may further include a light-absorbing layer 800 located on the side of the touch layer 600 opposite to the driving backplate 100. For example, the light-absorbing layer 800 may be made of a light-absorbing material; for instance, the display layer 800 may be a black matrix layer. The light-absorbing layer 800 in the display panel 000 has a plurality of second openings 800a, and the plurality of second openings 800a correspond one-to-one with a plurality of light-emitting devices 200 in the display panel 000. The orthographic projection of the light-emitting device 200 in the display panel 000 onto the driving backplate 100 lies within the orthographic projection of the corresponding second opening 800a onto the driving backplate 100. In this way, the light-absorbing layer 800 can be guaranteed not to block the main light emitted by the light-emitting device 200, thereby improving the light-emitting efficiency of the light-emitting device 200.

[0092] Here, by setting the light-absorbing layer 800, the defective phenomenon of color bleeding in the display panel 000 can be effectively avoided. Furthermore, the light-absorbing layer 800 can also absorb ambient light, reducing the reflectivity of the display panel 000 to ambient light and improving the display effect. In addition, the thicker the light-absorbing layer 800, the better its effect in preventing color bleeding and reducing ambient light reflectivity. For example, the thickness of the light-absorbing layer 800 can range from 1 micrometer to 2 micrometers.

[0093] In this embodiment, the light-absorbing layer 800 can be positioned in several ways. For example, as shown in Figures 5 and 9, the light-absorbing layer 800 in the display panel 000 can be located on the side of the third functional layer 700 facing away from the driving backplate 100 and on the side of the second functional layer 500 facing the driving backplate 100; that is, the light-absorbing layer 800 can be located between the third functional layer 700 and the second functional layer 500. In another case, as shown in Figures 7 and 10, the light-absorbing layer 800 in the display panel 000 can be located on the side of the second functional layer 500 facing away from the driving backplate 000 and on the side of the cover layer 900 facing the driving backplate 100; that is, the light-absorbing layer 800 can be located between the second functional layer 500 and the cover layer 900. In another case, as shown in Figures 8 and 11, the light-absorbing layer 800 in the display panel 000 can be located on the side of the third functional layer 700 facing the driving back panel 000, that is, the light-absorbing layer 800 can be located between the touch layer 600 and the third functional layer 700.

[0094] In this embodiment of the application, please refer to FIG12, which is a top view of a light-emitting device in a display panel provided in this embodiment of the application. When the third functional layer 700 in the display panel 000 has multiple first openings 700a, the orthographic projection of the pixel opening K in the pixel definition layer 1100 onto the driving backplate 100 lies within the orthographic projection of the corresponding first opening 700a onto the driving backplate 100. Furthermore, in a direction parallel to the driving backplate 100, the distance D1 between the outer boundary of the pixel opening K and the outer boundary of the corresponding first opening 700a can range from 0 micrometers to 1 micrometer. Thus, the light emission rate of the light-emitting device 200 at its frontal viewing angle can be controlled by adjusting the distance D1 between the pixel opening K and the corresponding first opening 700a.

[0095] The orthographic projection of the pixel opening K in the pixel definition layer 1100 onto the driving backplate 100 lies within the orthographic projection of the corresponding first dimming unit 410 onto the driving backplate 100. Furthermore, in a direction parallel to the driving backplate 100, the distance D2 between the outer boundary of the pixel opening K and the outer boundary of the corresponding first dimming unit 410 can range from 0.5 micrometers to 3 micrometers. This ensures that the first dimming unit 410 can contact the inclined surface S covering the corresponding third functional layer 700 on the side near the first opening 700a, thereby generating total internal reflection and improving the light emission rate of the display panel 000 at the front viewing angle.

[0096] The orthographic projection of the pixel opening K in the pixel definition layer 1100 onto the driving backplane 100 lies within the orthographic projection of the corresponding second opening 800a onto the driving backplane 100. Furthermore, in a direction parallel to the driving backplane 100, the distance D3 between the outer boundary of the pixel opening K and the outer boundary of the corresponding second opening 800a can range from 2 micrometers to 6 micrometers. Thus, the light emission rate of the light-emitting device 200 over a wide viewing angle can be controlled by adjusting the distance D3 between the outer boundary of the pixel opening K and the corresponding second opening 800a.

[0097] In the second possible scenario, please refer to Figures 13 and 14. Figure 13 is a schematic diagram of the film layer 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 another display panel according to another embodiment of this application. The orthographic projection of any color filter block 510 in the second functional layer 500 onto the driving backplate 100 overlaps with the orthographic projection of another color filter block 510 onto the driving backplate 100. In this case, the second functional layer 500 in the display panel 000 may further include: an auxiliary color group structure X located between two adjacent color filters 510, the orthographic projection of the auxiliary color group structure X onto the driving backplate 100 not coinciding with the orthographic projection of the first dimming unit 410 onto the driving backplate. The auxiliary color group structure X includes at least two auxiliary color resist parts X1 of different colors stacked together, the color of the auxiliary color resist part X1 being the same as the color of a portion of the color filter block 510.

[0098] In one possible implementation, as shown in Figure 14, the auxiliary color group structure X may include three auxiliary color resist units X1 of different colors stacked together. The plurality of color filters 510 may include: a plurality of red color filters 510a, a plurality of green color filters 510b, and a plurality of blue color filters 510c. The three auxiliary color resist units X1 in the auxiliary color group structure X, stacked along the direction away from the driving backplate 100, are red, green, and blue, respectively. In this way, light with a wide viewing angle emitted from a certain color filter 510 can be absorbed by the auxiliary color group structure X distributed between adjacent color filters 510, thereby effectively preventing color bleeding on the display panel 000.

[0099] It should be noted that the red color filter 510a and the red auxiliary color resist portion X1 in the auxiliary color group structure X can be formed in a single patterning process; the green color filter 510b and the green auxiliary color resist portion X1 in the auxiliary color group structure X can be formed in a single patterning process; and the blue color filter 510c and the blue auxiliary color resist portion X1 in the auxiliary color group structure X can be formed in a single patterning process, which simplifies the manufacturing process of the display panel 000. The single patterning process can include: photoresist coating, exposure, development, etching, and photoresist stripping.

[0100] In another possible implementation, the auxiliary color group structure X may include two auxiliary color resist units X1 of different colors stacked together. The plurality of color filters 510 may include: a plurality of red color filters 510a, a plurality of green color filters 510b, and a plurality of blue color filters 510c. The colors of the two auxiliary color resist units X1 stacked in the auxiliary color group structure X along the direction away from the driving backplate 100 can be any two of red, green, and blue. In this way, light with a wide viewing angle emitted from a certain color filter 510 can be absorbed by the auxiliary color group structure X distributed between adjacent color filters 510, thereby effectively preventing color bleeding on the display panel 000.

[0101] In this embodiment of the application, referring to Figures 2 to 11, 13, and 14, when the first functional layer 400 in the display panel 000 is made of a transparent material and the second functional layer 500 in the display panel 000 is made of a light-filtering material, the display panel further includes a cover layer 900 located on the side of the second functional layer 500 facing away from the driving backplate 100. The cover layer 900 is used to cover multiple color filters 510, thereby protecting the color filters 510 and ensuring the flatness of the light-emitting side of the display panel 000.

[0102] It should be noted that, since the cover layer 900 is a single-layer film structure, if it were made of a high-refractive-index material, the stress within it would be high, potentially causing warping or other problems. Therefore, the refractive index of the cover layer 900 is lower than that of the first dimming unit 410 in the first functional layer 400. Furthermore, to better protect the color filter block 510, the cover layer 900 is relatively thick. For example, the refractive index of the first functional layer 400 ranges from 1.7 to 1.8, the refractive index of the cover layer 900 ranges from 1.45 to 1.5, and the thickness of the cover layer 900 ranges from 2 micrometers to 6 micrometers.

[0103] A second optional implementation is described in Figures 15 and 16. Figure 15 is a schematic diagram of the film structure of another display panel according to another embodiment of this application, and Figure 16 is a schematic diagram of the film structure of yet another display panel according to yet another embodiment of this application. The first functional layer 400 in the display panel 000 is made of a light-filtering material, and the first dimming unit 410 in the first functional layer 400 is a color filter block. The second functional layer 500 in the display panel 000 is made of a transparent material. The second functional layer 500 in the display panel 000 covers the side of the first dimming unit 410 and the side of the first dimming unit 410 facing away from the driving backplate 100. The refractive index of the first functional layer 400 ranges from 1.6 to 1.7, and the refractive index of the second functional layer 500 ranges from 1.45 to 1.5.

[0104] In this configuration, the display panel 000 also includes a connection function layer 1000. The connection function layer 1000 in the display panel 000 is located on the side of the first function layer 400 in the display panel 000 facing the drive backplate 100.

[0105] It should be noted that when the first functional layer 400 is made of a filter material, a transparent organic material with good adhesion can usually be used to manufacture the connecting functional layer 1000. In this case, since the connecting functional layer 1000 is provided on the side of the first dimming unit 410 in the first functional layer 400 facing the driving back plate 100, and the connecting functional layer 1000 can be located on the side of the touch insulating layer 630 in the touch layer 600 facing away from the driving back plate 100, the side of the connecting functional layer 1000 facing away from the driving back plate 100 can contact the first dimming unit 410, and the side of the connecting functional layer 1000 facing the driving back plate 100 can contact the touch insulating layer 630. Furthermore, since the connecting functional layer 1000 is made of a transparent organic material with good adhesion, the first dimming unit 410 in the first functional layer 400 is firmly connected to the touch insulating layer 630 through the connecting functional layer 1000. This ensures that the probability of the first dimming unit 410 peeling off from the touch insulating layer 630 is low, effectively improving the reliability of the display panel 000.

[0106] It should be noted that the connecting functional layer 1000 is made of a light-transmitting material to ensure that the light emitted by the light-emitting device 200 is not blocked by the connecting functional layer 1000.

[0107] It should also be noted that the connection function layer 1000 in the display panel 000 has several optional design methods. This application will use the following two optional design methods as examples for illustration:

[0108] In the first optional design, as shown in Figure 15, the connecting functional layer 1000 in the display panel 000 is a single-layer film structure. Here, if the connecting functional layer 1000 is made of a high-refractive-index material, the stress in the connecting functional layer 1000 will be greater, easily causing problems such as warping. Therefore, the refractive index of the connecting functional layer 1000 is less than the refractive index of the first dimming unit 410. For example, the refractive index of the first functional layer 400 ranges from 1.6 to 1.7, and the refractive index of the connecting functional layer 1000 ranges from 1.45 to 1.5.

[0109] In this application, the display panel 000 may further include a light-absorbing layer 800, and the light-absorbing layer 800 may be located on the side of the connecting functional layer 1000 away from the driving backplate 100, or the light-absorbing layer 800 may be located on the side of the connecting functional layer 1000 facing the driving backplate 100. This application does not limit the scope of the embodiments.

[0110] The second optional design, as shown in Figure 16, includes a connection functional layer 1000 in the display panel 000 comprising a plurality of second dimming units 1010 corresponding one-to-one with the plurality of first dimming units 410, wherein the orthographic projection of the first dimming unit 410 on the driving back plate 100 lies within the orthographic projection of the corresponding second dimming unit 1010 on the driving back plate 100. This ensures that the side of the second dimming unit 1010 is in contact with the second functional layer 500.

[0111] The refractive index of the second dimming unit 1010 is greater than that of the second functional layer 500, and the angle between the side of the second dimming unit 1010 and the side of the second dimming unit 1010 facing the driving backplate 100 is less than or equal to 90°. For example, the refractive index of the second dimming unit 1010 ranges from 1.7 to 1.8, the refractive index of the second functional layer 500 ranges from 1.45 to 1.5, and the angle between the side of the second dimming unit 1010 and the side of the second dimming unit 1010 facing the driving backplate 100 ranges from 65° to 85°.

[0112] In this case, please refer to Figure 17, which is a light emission effect diagram of a certain light-emitting device in a display panel provided in another embodiment of this application. The light emitted by this light-emitting device 200 passes through the encapsulation layer 300 and enters the corresponding second dimming unit 1010. Since the second functional layer 500 can contact the side of the second dimming unit 1010, and the refractive index of the second dimming unit 1010 is greater than that of the second functional layer 500, when the angle between the side of the second dimming unit 1010 and the side of the second dimming unit 1010 facing the driving backplate 100 is less than or equal to 90°, the incident angle of the light rays entering the second dimming unit 1010 that strike the side of the second dimming unit 1010 is smaller. This light refracts into the second functional layer 500, and the refraction angle of the light rays refracted into the second functional layer 500 is greater than the incident angle of the light rays striking the side of the second dimming unit 1010. In other words, the light emitted from the side of the second dimming unit 1010 is refracted at an angle greater than the angle of incidence, thus altering the light transmission path. This allows the refracted light to exit from the side away from the second functional layer 500, and the angle between the refracted light and the normal to the driving backplate 100 is smaller. This further improves the light emission efficiency of the display panel 000 at narrow viewing angles.

[0113] It should be noted that the thicker the first dimming unit 410, the larger the area of ​​its side in contact with the second functional layer 500, thus increasing the area where light is refracted. Similarly, the thicker the second dimming unit 1010, the larger the area of ​​its side in contact with the second functional layer 500, thus increasing the area where light is refracted. 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 its forward viewing angle can be increased. For example, the thickness of the first dimming unit 410 ranges from 2 micrometers to 4 micrometers, and the thickness of the second dimming unit 1010 ranges from 1 micrometer to 1.5 micrometers.

[0114] In this embodiment, the display panel 000 may further include a light-absorbing layer 800, and the light-absorbing layer 800 is located on the side of the touch layer 600 away from the driving backplate 100.

[0115] In this application, please refer to FIG18, which is a top view of a light-emitting device in another display panel provided in an embodiment of this application. When the connection function layer 1000 in the display panel 000 has multiple second dimming units 1010, the orthographic projection of the pixel opening K in the pixel definition layer 1100 onto the driving backplate 100 lies within the orthographic projection of the corresponding first dimming unit 410 onto the driving backplate 100. Furthermore, in a direction parallel to the driving backplate 100, the distance d1 between the outer boundary of the pixel opening K and the outer boundary of the corresponding first dimming unit 410 can range from 1 micrometer to 3 micrometers. This allows light emitted from the side of the first dimming unit 410 at wide viewing angles to be refracted, improving the light emission efficiency of the display panel 000 at narrow viewing angles.

[0116] The orthographic projection of the pixel opening K in the pixel definition layer 1100 onto the driving backplate 100 lies within the orthographic projection of the corresponding second dimming unit 1010 onto the driving backplate 100. Furthermore, in a direction parallel to the driving backplate 100, the distance d2 between the outer boundary of the pixel opening K and the outer boundary of the corresponding second dimming unit 1010 can range from 2 micrometers to 4 micrometers. This allows light emitted from the side of the second dimming unit 1010 at wide viewing angles to be refracted, improving the light emission efficiency of the display panel 000 at narrow viewing angles.

[0117] The orthographic projection of the pixel opening K in the pixel definition layer 1100 onto the driving backplane 100 lies within the orthographic projection of the corresponding second opening 800a onto the driving backplane 100. Furthermore, in a direction parallel to the driving backplane 100, the distance d3 between the outer boundary of the pixel opening K and the outer boundary of the corresponding second opening 800a can range from 3 micrometers to 6 micrometers. Thus, the light emission rate of the light-emitting device 200 over a wide viewing angle can be controlled by adjusting the distance d3 between the outer boundary of the pixel opening K and the corresponding second opening 800a.

[0118] In this embodiment, when the first functional layer 400 in the display panel 000 is made of a light-filtering material and the first dimming unit 410 in the first functional layer 400 is a color filter block, the second functional layer 500 is a film structure integrally formed, and the second functional layer 500 is reused with the cover layer in the display panel 000. Thus, the second functional layer 500 covers the multiple first dimming units 410 and the gaps between them, protecting the first dimming units 410 and ensuring the flatness of the light-emitting side of the display panel 000.

[0119] It should be noted that when the second functional layer 500 reuses the cover layer in the display panel 000, since the cover layer is a single-layer film structure, if it is made of a high-refractive-index material, the stress in the cover layer will be relatively large, which can easily cause warping and other problems. Therefore, the refractive index of the second functional layer 500 is less than that of the first dimming unit 410 in the first functional layer 400, and less than that of the second dimming unit 1010 in the connecting functional layer 1000. Furthermore, to better protect the color filter block 510, the cover layer 900 is relatively thick. For example, the refractive index of the first functional layer 400 ranges from 1.6 to 1.7, the refractive index of the second functional layer 500 ranges from 1.45 to 1.5, the refractive index of the connecting functional layer 1000 ranges from 1.7 to 1.8, and the thickness of the second functional layer 500 ranges from 2 micrometers to 6 micrometers.

[0120] In summary, the display panel provided in this application includes: a driving backplane, light-emitting devices, an encapsulation layer, a first functional layer, and a second functional layer. The first functional layer includes multiple first dimming units, each corresponding to one of the light-emitting devices. The side of each first dimming unit contacts the second functional layer, and the angle between the side of the first dimming unit and the side facing the driving backplane is less than or equal to 90°. When light emitted from the light-emitting devices passes through the encapsulation layer and enters the corresponding first dimming unit, the second functional layer can contact the side of the first dimming unit, and the refractive index of the first dimming unit is greater than that of the second functional layer. Therefore, when the angle between the side of the first dimming unit and the side facing the driving backplane is less than or equal to 90°, the incident angle of the light rays entering the first dimming unit that strike the side of the first dimming unit is smaller. This causes the light rays to refract into the second functional layer, and the angle of refraction of the light rays refracted into the second functional layer is greater than the incident angle of the light rays striking the side of the first dimming unit. In other words, the light emitted from the side of the first dimming unit is refracted at an angle greater than the angle of incidence, thus altering the light's transmission path. This allows the refracted light to exit from the side away from the second functional layer, and the angle between the refracted light and the normal to the driving backplate is smaller. This improves the light extraction efficiency of the display panel at narrow viewing angles, thereby increasing the brightness of the display panel at the front viewing angle without increasing current. This reduces the power consumption of the display panel and extends its lifespan.

[0121] This application also provides a display device, which includes a display panel 000 and a driver chip. The display panel 000 is any of the display panels given above, and the driver chip is used to apply a driving signal to the display panel 000. This display device can be any product or component with display functionality, such as a mobile phone, tablet computer, television, advertising machine, display screen, digital photo frame, etc.

[0122] 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.

[0123] 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.

[0124] 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: Driver backplane, light-emitting device, encapsulation layer, first functional layer and second functional layer; The number of light-emitting devices is multiple, and all of the multiple light-emitting devices are distributed on the same side of the driving back plate; The encapsulation layer is located on the side of the plurality of light-emitting devices that is away from the driving backplate; The first functional layer is located on the side of the encapsulation layer away from the driving backplane, and the first functional layer includes a plurality of first dimming units corresponding one-to-one with the plurality of light-emitting devices, and the orthographic projection of the light-emitting device on the driving backplane is located within the orthographic projection of the corresponding first dimming unit on the driving backplane. The second functional layer is located on the side of the first functional layer away from the driving backplate. The second functional layer is in contact with the side of each of the first dimming units, and the refractive index of the first dimming unit is greater than the refractive index of the second functional layer. Wherein, the angle between the side of the first dimming unit and the side of the first dimming unit facing the drive back plate is less than or equal to 90°.

2. The display panel according to claim 1, characterized in that, The first functional layer is made of a transparent material, and the second functional layer is made of a light-filtering material; The second functional layer includes multiple color filters, each of which corresponds to one of the first dimming units. The color filters cover the side of the corresponding first dimming unit and the side of the corresponding first dimming unit that faces away from the drive backplate.

3. The display panel according to claim 2, characterized in that, The display panel further includes a third functional layer, which is located on the side of the first functional layer facing the driving backplate, and the refractive index of the third functional layer is less than that of the first functional layer.

4. The display panel according to claim 3, characterized in that, The third functional layer has a plurality of first openings, each of which corresponds to a plurality of first dimming units and a plurality of light-emitting devices. At least a portion of the first dimming unit is located within the corresponding first opening and is in contact with the inner wall of the corresponding first opening; The orthographic projection of the light-emitting device on the driving back plate is located within the orthographic projection of the corresponding first opening on the driving back plate.

5. The display panel according to claim 4, characterized in that, A portion of the first dimming unit is located inside the corresponding first opening, and another portion is located outside the first opening; In this unit, the side of the portion of the first dimming unit located outside the first opening is in contact with the second functional layer.

6. The display panel according to claim 3, characterized in that, The third functional layer is a film layer structure that is integrally formed. The side of the third functional layer that is away from the driving back plate is in contact with the side of the first dimming unit that is facing the driving back plate.

7. The display panel according to any one of claims 2-6, characterized in that, The second functional layer further includes: an auxiliary color group structure located between two adjacent color filter blocks, wherein the orthographic projection of the auxiliary color group structure on the drive back panel does not coincide with the orthographic projection of the first dimming unit on the drive back panel; The auxiliary color group structure includes at least two auxiliary color resists of different colors stacked together, and the color of the auxiliary color resists is the same as the color of a portion of the color filter blocks.

8. The display panel according to any one of claims 2-6, characterized in that, The display panel further includes a cover layer located on the side of the second functional layer opposite to the driving backplate.

9. The display panel according to claim 1, characterized in that, The first functional layer is made of a light-filtering material, and the first dimming unit in the first functional layer is a color filter block; the second functional layer is made of a transparent material; the second functional layer covers the side of the first dimming unit and the side of the first dimming unit facing away from the drive back plate.

10. The display panel according to claim 9, characterized in that, The display panel further includes a connection function layer, which is located on the side of the first function layer facing the drive backplate.

11. The display panel according to claim 10, characterized in that, The connection function layer includes a plurality of second dimming units that correspond one-to-one with the plurality of first dimming units, wherein the orthographic projection of the first dimming unit on the drive back panel is located within the orthographic projection of the corresponding second dimming unit on the drive back panel. The side of the second dimming unit is in contact with the second functional layer, and the refractive index of the second dimming unit is greater than the refractive index of the second functional layer; the angle between the side of the second dimming unit and the side of the second dimming unit facing the drive back plate is less than or equal to 90°.

12. The display panel of claim 10, wherein, The connecting functional layer is a film structure that is integrally formed, and the refractive index of the connecting functional layer is less than the refractive index of the first dimming unit.

13. The display panel of any of claims 9-12, wherein, The second functional layer is a film layer structure that is integrally formed, and the second functional layer is reused with the cover layer in the display panel.

14. The display panel according to any one of claims 1-6 and 9-12, characterized in that, The display panel also includes: a touch layer and a light-absorbing layer; The touch layer is located between the encapsulation layer and the first functional layer; the light-absorbing layer is located on the side of the touch layer opposite to the driving backplate.

15. A display device, characterized in that, include: The display panel and the driver chip are provided, wherein the display panel is the display panel according to any one of claims 1 to 14, and the driver chip is used to apply a driving signal to the display panel.

Images