Display panel and display device

Abstract

The invention provides a display panel and a display device. The display panel includes: a substrate; an organic electroluminescent unit; the color filter film comprises a plurality of first color filters, a plurality of second color filters and a plurality of third color filters, and the edges of the first color filters are provided with protruding parts; the plurality of lenses and the plurality of optical filters are arranged in one-to-one correspondence, and the orthographic projection of the lenses on the substrate is located in the orthographic projection of the optical filters on the substrate; the filling layer is arranged in a gap between the lenses, the filling layer comprises a first area filling layer and a second area filling layer, the first area filling layer is in contact with the lens corresponding to the first color filter, the orthographic projection of the first area filling layer on the substrate is overlapped with the orthographic projection of the protruding part on the substrate, and the second area filling layer is in contact with the second area filling layer. The refractive index of the first filling layer is larger than or equal to that of the second filling layer. The problem that the area corresponding to the protruding part is greenish can be solved, and the visual effect of the product is improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Micro-OLED is a new type of OLED visual effect device with a silicon substrate as the substrate. Silicon-based OLED has the characteristics of small size and high resolution. It is made using the mature integrated circuit CMOS (metal oxide semiconductor) process to achieve active addressing of pixels. It is widely used in the fields of near-eye visual effects, virtual reality, and augmented reality, especially in AR / VR head-mounted visual effects devices. In the OLED visual effect device used in the near-eye visual effect device, the fixed position of the visual effect panel is very important for the user and determines the user's experience. On the one hand, the current silicon-based OLED visual effect device is used in AR / VR devices, and users need to appear in different environments, which is crucial for the reliability and life requirements of OLED devices. On the other hand, in the production process of silicon-based OLED visual effect devices, in order to improve the visual effect, there should be no obvious color difference on the surface of the display module, resulting in a poor visual effect quality experience. However, the current silicon-based OLED visual effect device still has the phenomenon of light mixing of different pixels, which affects the visual effect of the device. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one object of the present invention is to provide a display panel that can effectively improve the phenomenon of light mixing between different pixels and improve the competitive advantage and yield of the display device.

[0004] In one aspect of the present invention, the present invention provides a display panel. According to an embodiment of the present invention, the display panel includes: a substrate; an organic electroluminescent unit, the organic electroluminescent unit is arranged on one side of the substrate; a color filter film, the color filter film is arranged on the side of the organic electroluminescent unit away from the substrate, the color filter film includes a plurality of filters, the filters include a first color filter, a second color filter and a third color filter, wherein the edge of the first color filter has a protrusion; a plurality of lenses arranged at intervals, the lenses are arranged on the side of the color filter film away from the substrate, and the plurality of lenses are aligned one by one with the plurality of filters. Correspondingly, the orthographic projection of the lens on the substrate is located within the orthographic projection of the filter on the substrate; the filling layer is arranged in the gap between the lenses, the filling layer includes a first zone filling layer and a second zone filling layer, the first zone filling layer is arranged in contact with the lens arranged corresponding to the first color filter, the orthographic projection of the first zone filling layer on the substrate is located within the orthographic projection of the first color filter on the substrate, and overlaps with the orthographic projection of the protrusion on the substrate, and the refractive index of the first zone filling layer is greater than or equal to the refractive index of the second zone filling layer. Thus, the refractive index of the first zone filling layer arranged in the lens gap corresponding to the protrusion of the first color filter is close to the refractive index of the lens, so that the light incident on the first zone filling layer after passing through the lens will not be amplified, and the light can basically be incident on the first zone filling layer vertically from the lens, and then the stray light of the first color light will not appear at the corresponding position of the protrusion, so that the problem of green bias in this area can be improved, and then the visual effect can be improved, and the competitive advantage and product yield of the product can be improved.

[0005] According to an embodiment of the present invention, the difference between the refractive index of the filling layer in the first region and the refractive index of the lens is less than or equal to 0.1.

[0006] According to an embodiment of the present invention, the refractive index of the filling layer in the first region is 1.5 to 1.6, and the refractive index of the filling layer in the second region is 1.3 to 1.6.

[0007] According to an embodiment of the present invention, the first color filter is a green filter, the second color filter is a red filter, and the third color filter is a blue filter.

[0008] According to an embodiment of the present invention, an orthographic projection of the protrusion on the substrate has no overlapping area with an orthographic projection of the lens on the substrate.

[0009] According to an embodiment of the present invention, the protruding portion covers a portion of an edge surface of the second color filter disposed adjacent thereto and a portion of an edge surface of the third color filter disposed adjacent thereto.

[0010] According to an embodiment of the present invention, the area where the protrusion covers the second color filter arranged adjacent to it and the area where the protrusion covers the third color filter arranged adjacent to it are defined as the overlapping portion, the orthographic projection of the filling layer in the first area on the substrate overlaps with the orthographic projection of the overlapping portion on the substrate, and the orthographic projection of the filling layer in the second area on the substrate does not overlap with the orthographic projection of the overlapping portion on the substrate.

[0011] According to an embodiment of the present invention, an edge line of an orthographic projection of the first region filling layer on the substrate close to the second region filling layer is aligned with an edge line of an orthographic projection of the protrusion on the substrate.

[0012] According to an embodiment of the present invention, an edge line of an orthographic projection of the protrusion on the substrate is aligned with a center line of a gap between the lenses.

[0013] According to an embodiment of the present invention, the center line of the lens coincides with the center line of the filter arranged corresponding to the lens.

[0014] According to an embodiment of the present invention, the height of the filling layer in the first region is greater than or equal to the height of the filling layer in the second region, and is less than the arch height of the lens.

[0015] According to an embodiment of the present invention, in a gap between adjacent lenses, a width of the filling layer in the first region is greater than or equal to a width of the filling layer in the second region.

[0016] According to an embodiment of the present invention, the height of the filling layer in the first region is 0.1 to 0.2 times the height of the lens arch.

[0017] According to an embodiment of the present invention, the arch height of the lens is 1.4-2 microns.

[0018] According to an embodiment of the present invention, the material of the filling layer is at least one of silicon nitride, silicon oxynitride and silicon oxide.

[0019] According to an embodiment of the present invention, the display panel further includes: a first encapsulation layer, which is arranged on a side of the organic electroluminescent unit away from the substrate; a first flat layer, which is arranged between the first encapsulation layer and the color filter film; a second flat layer, which is arranged between the color filter film and the lens; and a second encapsulation layer, which is arranged on a side of the lens away from the substrate and covers the filling layer.

[0020] In another aspect of the present invention, the present invention provides a display device. According to an embodiment of the present invention, the display device includes the display panel described above. As a result, the display device has a better visual effect, good competitive advantage and yield. Those skilled in the art can understand that the display device has all the features and advantages of the display panel described above, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a schematic structural diagram of a display panel in one embodiment of the present invention;

[0023] Figure 2 is a schematic structural diagram of a display panel in another embodiment of the present invention;

[0024] Figure 3 is a schematic structural diagram of a display panel in another embodiment of the present invention;

[0025] Figure 4 It is a schematic structural diagram of a display panel in another embodiment of the present invention. DETAILED DESCRIPTION

[0026] The scheme of the present invention will be explained below in conjunction with embodiments. It will be appreciated by those skilled in the art that the following embodiments are only used to illustrate the present invention and should not be considered as limiting the scope of the present invention. Where specific techniques or conditions are not indicated in the embodiments, the techniques or conditions described in the literature in this area or the product specifications are followed.

[0027] The present invention is described below with reference to specific embodiments. It should be noted that these embodiments are merely illustrative and do not limit the present invention in any way.

[0028] In one aspect of the present invention, the present invention provides a display panel. The display panel includes a display area and a frame area arranged around the display area. According to an embodiment of the present invention, referring to Figure 1The display panel corresponding to the display area includes: a substrate 10; an organic electroluminescent unit 20, which is arranged on one side of the substrate 10; a color filter film 30, which is arranged on the side of the organic electroluminescent unit 20 away from the substrate 10, and the color filter film 30 includes a plurality of filters, the filters include a first color filter 31, a second color filter 32 and a third color filter 33, wherein the edge of the first color filter 31 has a protrusion 310; a plurality of lenses 40 are arranged at intervals, and the lenses 40 are arranged on the side of the color filter film 30 away from the substrate 10, and the plurality of lenses 40 are A plurality of filters are arranged in one-to-one correspondence, and the orthographic projection of the lens 40 on the substrate 10 is located within the orthographic projection of the filter on the substrate; a filling layer 50, the filling layer 50 is arranged in the gap between the lenses 40, the filling layer 50 includes a first-area filling layer 51 and a second-area filling layer 52, the first-area filling layer 51 is arranged in contact with the lens 40 arranged corresponding to the first color filter 31, the orthographic projection of the first-area filling layer 51 on the substrate 10 is located within the orthographic projection of the first color filter 31 on the substrate, and overlaps with the orthographic projection of the protrusion 310 on the substrate 10, and the refractive index of the first-area filling layer is greater than or equal to that of the second-area filling layer. Therefore, by increasing the refractive index of the filling layer in the first zone and reducing the difference between the refractive index of the filling layer in the first zone and the lens, the light incident on the filling layer in the first zone after passing through the lens will not be amplified due to a large refraction, and the light can even be basically incident on the filling layer in the first zone almost vertically from the lens, thereby reducing or eliminating the stray light of the first color light at the corresponding position of the protrusion, thereby improving the green bias problem in this area, thereby improving the visual effect, and enhancing the competitive advantage and product yield of the product; at the same time, arranging a filling layer in the gap between the lenses can ensure that the lenses are not deformed, and at the same time, the filling layer and the lens cooperate with each other to improve the light output efficiency.

[0029] According to an embodiment of the present invention, the difference between the refractive index of the first refractive index filling layer 51 and the refractive index of the lens 40 is less than or equal to 0.1. In this way, the refractive index of the first refractive index filling layer set in the lens gap corresponding to the protrusion of the first color filter is close to the refractive index of the lens. In this way, the light incident on the first refractive index filling layer after passing through the lens will not be amplified due to a large refraction, and even the light can be almost vertically incident on the first refractive index filling layer from the lens, and further reduce or eliminate the stray light of the first color light at the corresponding position of the protrusion, so that the green bias problem in the area can be more effectively improved, thereby improving the visual effect, and improving the competitive advantage and product yield of the product. According to a specific embodiment of the present invention, the refractive index of the filling layer is less than or equal to the refractive index of the lens, that is, the refractive index of the first refractive index filling layer is less than or equal to the refractive index of the lens, and the difference is less than or equal to 0.1. In some embodiments, the refractive index of the first refractive index filling layer is equal to the refractive index of the lens. In this way, the light incident on the first refractive index filling layer from the lens in a straight line will not be refracted, that is, it will not be amplified, avoiding the cause of viewing angle deviation, thereby better improving the visual effect of the product.

[0030] According to an embodiment of the present invention, the refractive index of the filling layer in the first zone is 1.5 to 1.6. In some embodiments, the refractive index of the lens is 1.5 to 1.6. In this way, the refractive index of the lens and the filling layer in the first zone are relatively close, which can more effectively eliminate the stray light of the first color light appearing at the corresponding position of the protrusion, thereby better improving the green bias problem in the area, thereby improving the visual effect, and enhancing the competitive advantage and product yield of the product.

[0031] According to an embodiment of the present invention, the refractive index of the filling layer in the second zone is 1.3 to 1.6. In some embodiments, the refractive index of the filling layer in the first zone is equal to the refractive index of the filling layer in the second zone. In this case, the filling layer in the first zone and the filling layer in the second zone can be prepared by using the same material, that is, the refractive index of the filling layer in the second zone can be 1.5 to 1.6; in other embodiments, the refractive index of the filling layer in the first zone is greater than the refractive index of the filling layer in the second zone. In this case, the refractive index of the filling layer in the second zone can be 1.3 to 1.4. Further, the material of the filling layer includes but is not limited to at least one of silicon nitride (SiNx), silicon oxynitride (SiNOx) and silicon oxide (SiOx). The specific size of the filling layer in the first zone and the filling layer in the second zone can be adjusted by adjusting the ratio of specific elements. In some specific embodiments, the material of the filling layer in the first zone is silicon nitride, and the material of the filling layer in the second zone is silicon oxide.

[0032] According to an embodiment of the present invention, the first color filter is a green filter, the second color filter is a red filter, and the third color filter is a blue filter. Since the brightness of green light is greater than that of red light and blue light, when the light in the filling layer corresponding to the protrusion of the green filter is amplified, stray light appears, which is easier to be seen, seriously affecting the visual effect of the product. Therefore, the refractive index of the filling layer in the first area corresponding to the protrusion of the green filter is close to the refractive index of the lens, which can better improve the visual effect of the product and improve the quality of the product. Among them, there is no special requirement for the arrangement order of the green filter, the red filter and the blue filter. Figure 1 The arrangement order of the red filter, the green filter and the blue filter is only an arrangement of an embodiment, and those skilled in the art can also flexibly set the arrangement order of sub-pixels of different colors according to actual conditions.

[0033] According to an embodiment of the present invention, the edges of the red filter and the blue filter may further be provided with protrusions ( Figure 1 (not shown in the figure), usually, the protrusion size of the edge of the green filter is larger than the protrusion size of the edge of the red filter, and the protrusion size of the edge of the red filter is larger than the protrusion size of the edge of the blue filter. When the refractive index of the entire filling layer is close to the refractive index of the lens, that is, 1.5 to 1.6, the amplified stray light in the filling layer corresponding to the red filter and the blue filter can be further eliminated, thereby further improving the visual effect of the product and increasing the yield of the product.

[0034] According to an embodiment of the present invention, referring to Figure 1 , the orthographic projection of the protrusion 310 of the first color filter 31 on the substrate 10 has no overlapping area with the orthographic projection of the lens 40 on the substrate 10. Therefore, the technical effect of lens focusing and improving the brightness of the display panel can be ensured, and at the same time, the light emitted by the first color filter can be well incident on the lens corresponding to it, avoiding being incident on the lenses corresponding to other color filters, thereby avoiding the phenomenon of mixed light.

[0035] According to an embodiment of the present invention, referring to Figure 1 The protrusion 310 covers part of the edge surface of the second color filter 32 and part of the edge surface of the third color filter 33. Thus, the light exit area of ​​the first color filter is not affected by the protrusion, and the light exit areas of the second color filter and the third color filter are not affected. In addition, the first color light can be prevented from being incident on the lenses corresponding to the second color filter and the third color filter, thereby avoiding the color mixing phenomenon caused by the protrusion.

[0036] According to an embodiment of the present invention, referring to Figure 1, the area where the protrusion 310 covers the second color filter 32 disposed adjacent thereto and the area where the protrusion 310 covers the third color filter 33 disposed adjacent thereto are defined as the overlapping portion S, the orthographic projection of the first area filling layer 51 on the substrate overlaps with the orthographic projection of the overlapping portion S on the substrate 10, and the orthographic projection of the second area filling layer 52 on the substrate 10 does not overlap with the orthographic projection of the overlapping portion S on the substrate. Thus, it can be better ensured that the filling layer portion corresponding to the protrusion is the first area filling layer with a higher refractive index, thereby better reducing the stray light generated in the area corresponding to the protrusion and improving the green bias problem in this area.

[0037] According to an embodiment of the present invention, referring to Figure 1 As shown, the edge line AA' of the orthographic projection of the first region filling layer 51 on the substrate 10 close to the second region filling layer 52 is aligned with the edge line BB' of the orthographic projection of the protrusion 310 on the substrate 10. Thus, it can be ensured that the filling layer portion corresponding to the protrusion is the first region filling layer with a higher refractive index, thereby better reducing the stray light generated in the area corresponding to the protrusion and improving the green bias problem of the area.

[0038] According to an embodiment of the present invention, referring to Figure 1 As shown, the edge line BB' of the orthographic projection of the protrusion 310 on the substrate 10 is aligned with the center line of the gap between the lenses 40 (those skilled in the art can understand that the center line of the gap between the lenses here refers to the center line of the gap between the lens corresponding to the first color filter and the lens corresponding to the second color filter, or refers to the center line of the gap between the lens corresponding to the first color filter and the lens corresponding to the third color filter), that is, the edge line AA' of the orthographic projection of the first area filling layer 51 on the substrate 10 close to the second area filling layer 52 is the center line of the above-mentioned gap between the lenses. In this way, the stray light in the filling layer area corresponding to the protrusion can be effectively reduced, and the problem of green light can be improved.

[0039] According to an embodiment of the present invention, referring to Figure 1 The center line CC' of the lens 40 coincides with the center line DD' of the corresponding filter. In this way, the light emitted from the lens 40 to the filling layer 50 can be emitted vertically without being refracted and amplified to cause a difference in viewing angle, thereby improving the visual effect and viewing quality of the product.

[0040] According to an embodiment of the present invention, Figure 1As shown, the height of the filling layer in the first area is greater than or equal to the height of the filling layer in the second area, and the height h1 of the filling layer 50 is less than the arch height h2 of the lens 40. Therefore, it is beneficial for the direct emission of light in the lens, and reduces the light emitted after entering the filling layer through refraction, that is, the light emission efficiency is improved. Combined with the above-mentioned requirements for the refractive index between the filling layer and the lens, the gain effect of the lens can be more effectively achieved. Moreover, when the first color filter is a green filter, the color deviation of the green pixel is relatively more serious, so the height of the filling layer in the first area is increased (greater than the filling layer in the second area), which can better improve the problem of green light color deviation at the edge of the green pixel, thereby better improving the visual effect of the product.

[0041] According to an embodiment of the present invention, the height h1 of the filling layer is 0.1 to 0.2 times the height h2 of the lens. Thus, the filling layer can well fix the lens to prevent its deformation, and the filling layer and the lens can cooperate well with each other to improve the light extraction efficiency and visual effect.

[0042] According to an embodiment of the present invention, the arch height of the lens is 1.4-2 micrometers. In this way, the height of the filling layer and the lens is appropriate, which can effectively realize the functions of the filling layer and the lens without significantly increasing the overall thickness of the display panel.

[0043] In some embodiments, in the gap between the same adjacent lenses 40, the width of the first zone filling layer 51 is greater than or equal to the width of the second zone filling layer 52. Thus, it is ensured that the first zone filling layer has sufficient space so that the first color light is directly emitted from the first zone filling layer, and the first color light can be prevented from being incident on the second zone filling layer from the first zone filling layer. If so, the first color light will be refracted when it is incident on the second zone filling layer with a lower refractive index from the first zone filling layer with a higher refractive index, so that the first color light is amplified in the second zone filling layer due to refraction, resulting in the phenomenon of poor mixed light color deviation. That is to say, the above requirements of the present application can further avoid the color deviation phenomenon.

[0044] According to an embodiment of the present invention, the substrate 10 includes a pixel driving circuit structure of a display panel, such as a thin film transistor. In some embodiments, the substrate includes a substrate, a buffer layer, an active layer, a gate insulating layer, a gate, an interlayer dielectric layer, a source-drain electrode layer, a passivation layer, a gate signal line, a data signal line and other structures. In some embodiments, the substrate 10 is a silicon substrate, that is, the substrate is a silicon substrate, and a pixel driving circuit structure is formed on the silicon substrate. The pixel driving circuit can be manufactured by a 180nm or 110nm semiconductor process.

[0045] According to an embodiment of the present invention, the organic electroluminescent unit 20 may include an anode 21, an organic light-emitting layer 22 and a cathode 23. The anode may be made of ITO, which has high transmittance and good conductivity; the organic light-emitting layer utilizes the light-emitting characteristics of organic materials, and under the action of voltage or current, holes and electrons are excited to form excitons to achieve light emission; the cathode is usually made of metal materials, and may be made of one or more alloy materials of Mg / Ag.

[0046] According to an embodiment of the present invention, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 The display panel further includes: a first encapsulation layer 60, which is arranged on a side of the organic electroluminescent unit 20 away from the substrate 10, and is used to encapsulate the organic electroluminescent unit to prevent water vapor, oxygen, etc. from entering the organic light-emitting layer and causing it to fail, thereby protecting the organic electroluminescent unit (OLED), wherein the first encapsulation layer may include a first organic encapsulation layer, an inorganic encapsulation layer (such as silicon nitride, silicon oxide, etc., which have good sealing properties) and a second inorganic encapsulation layer that are stacked, and the encapsulation layer of this structure has a good encapsulation effect; a first flat layer 70, which is arranged between the first encapsulation layer 60 and the color filter film 30, and provides a flat surface to facilitate the setting of the color filter and the propagation of the light path; a second flat layer 70; a first ... Layer 80, the second flat layer 80 is arranged between the color filter film 30 and the lens 40, providing a flat surface, facilitating the arrangement of the lens and allowing the light to accurately enter the corresponding lens to avoid light mixing; second encapsulation layer 90, the second encapsulation layer 90 is arranged on the side of the lens 40 away from the substrate 10, and covers the filling layer 50, so that, in cooperation with the first encapsulation layer, the organic electroluminescent unit can be further protected from being corroded by water vapor and oxygen, and the color filter film and the lens can be protected at the same time; cover plate, the cover plate 100 is arranged on the side of the second encapsulation layer 90 away from the substrate 10, and the cover plate can be a glass cover plate with high transparency, which can realize the function of emitting light and protecting the luminous visual effect, for example, the cover plate can be a plain glass with high transmittance. Furthermore, the size of the cover plate can be slightly larger than the luminous visual effect part (i.e., the color filter film 30), and the size of the cover plate can be slightly smaller than the size of the silicon substrate, and a certain distance is kept between the silicon substrate and the four corners of the cover plate, so as to realize the positioning and fixing of the organic electroluminescent unit of the silicon substrate. The luminous visual effect of the organic electroluminescent unit is achieved by inputting a voltage to the driving circuit in the silicon substrate.

[0047] According to an embodiment of the present invention, the display panel may further include a flexible circuit board (FPC), one end of which is fixed to the silicon substrate and then bent to the back of the silicon substrate. The flexible circuit board can achieve electrical connection and transmission of external signals. The flexible circuit board is used to achieve electrical connection and drive visual effects of the OLED module.

[0048] In another aspect of the present invention, the present invention provides a display device. According to an embodiment of the present invention, the display device includes the display panel described above. As a result, the display device has a better visual effect, good competitive advantage and yield. Those skilled in the art can understand that the display device has all the features and advantages of the display panel described above, and will not be described in detail here.

[0049] According to the embodiments of the present invention, there is no special requirement for the specific type of the display device, and those skilled in the art can flexibly select according to actual conditions. In some embodiments, the display device can be a Micro-OLED display device, such as a mobile phone, a computer, a virtual reality display device (VR) or an augmented reality display device (AR).

[0050] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0052] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A display panel, characterized in that: include: substrate; An organic electroluminescent unit, which is arranged on one side of the substrate; A color filter film, the color filter film is arranged on a side of the organic electroluminescent unit away from the substrate, the color filter film comprises a plurality of filters, the filters comprise a first color filter, a second color filter and a third color filter, wherein the edge of the first color filter has a protrusion; A plurality of lenses are arranged at intervals, wherein the lenses are arranged on a side of the color filter film away from the substrate, and the plurality of lenses are arranged in a one-to-one correspondence with the plurality of filters, and the orthographic projection of the lenses on the substrate is located within the orthographic projection of the filters on the substrate; A filling layer, wherein the filling layer is arranged in the gap between the lenses, the filling layer comprises a first zone filling layer and a second zone filling layer, the first zone filling layer is arranged in contact with the lens corresponding to the first color filter, the orthographic projection of the first zone filling layer on the substrate is located within the orthographic projection of the first color filter on the substrate, and overlaps with the orthographic projection of the protrusion on the substrate, and the refractive index of the first zone filling layer is greater than or equal to the refractive index of the second zone filling layer.

2. The display panel according to claim 1, characterized in that: The difference between the refractive index of the first zone filling layer and the refractive index of the lens is less than or equal to 0.

1.

3. The display panel according to claim 2, characterized in that: The refractive index of the filling layer in the first region is 1.5 to 1.6, and the refractive index of the filling layer in the second region is 1.3 to 1.

6.

4. The display panel according to claim 1 or 2, characterized in that: The first color filter is a green filter, the second color filter is a red filter, and the third color filter is a blue filter.

5. The display panel according to claim 1 or 2, characterized in that: An orthographic projection of the protrusion on the substrate has no overlapping area with an orthographic projection of the lens on the substrate.

6. The display panel according to claim 1 or 2, characterized in that: The protrusion covers a portion of an edge surface of the second color filter disposed adjacent thereto and a portion of an edge surface of the third color filter disposed adjacent thereto.

7. The display panel according to claim 6, characterized in that: The area where the protrusion covers the second color filter arranged adjacent to it and the area where the protrusion covers the third color filter arranged adjacent to it are defined as the overlapping portion, the orthographic projection of the filling layer in the first area on the substrate overlaps with the orthographic projection of the overlapping portion on the substrate, and the orthographic projection of the filling layer in the second area on the substrate does not overlap with the orthographic projection of the overlapping portion on the substrate.

8. The display panel according to claim 4, characterized in that: An edge line of an orthographic projection of the first region filling layer on the substrate close to the second region filling layer is aligned with an edge line of an orthographic projection of the protruding portion on the substrate.

9. The display panel according to claim 8, characterized in that: An edge line of an orthographic projection of the protrusion on the substrate is aligned with a center line of a gap between the lenses.

10. The display panel according to claim 1 or 2, characterized in that: The center line of the lens coincides with the center line of the filter arranged correspondingly thereto.

11. The display panel according to claim 1 or 2, characterized in that: The height of the filling layer in the first region is greater than or equal to the height of the filling layer in the second region, and is less than the arch height of the lens.

12. The display panel according to claim 1 or 2, characterized in that: In a gap between adjacent lenses, a width of the filling layer in the first region is greater than or equal to a width of the filling layer in the second region.

13. The display panel according to claim 11, characterized in that: The height of the filling layer in the first area is 0.1 to 0.2 times the height of the lens arch.

14. The display panel according to claim 13, characterized in that: The arch height of the lens is 1.4 to 2 microns.

15. The display panel according to claim 1 or 2, characterized in that: The material of the filling layer is at least one of silicon nitride, silicon oxynitride and silicon oxide.

16. The display panel according to claim 1 or 2, characterized in that: Also includes: A first encapsulation layer, wherein the first encapsulation layer is disposed on a side of the organic electroluminescent unit away from the substrate; a first flat layer, wherein the first flat layer is disposed between the first encapsulation layer and the color filter film; a second flat layer, wherein the second flat layer is disposed between the color filter film and the lens; A second packaging layer is disposed on a side of the lens away from the substrate and covers the filling layer.

17. A display device, characterized in that: A display panel comprising any one of claims 1 to 16.

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