Display panel and display device

Abstract

The invention discloses a display panel and a display device.The display panel comprises a display substrate and a functional device, the functional device is provided with a plurality of containing cavities, the functional device comprises a touch control structure, a black matrix layer and a color filter layer, the touch control structure comprises at least two stacked insulating layers, and the black matrix layer is arranged in the containing cavities. The containing cavity continuously penetrates through the black matrix layer and the at least one insulating layer, and the color filter layer is arranged in the containing cavity. The containing cavity correspondingly forms an opening every time the containing cavity penetrates through the black matrix layer and one film layer in the at least two insulating layers, the side wall of one opening in the touch control structure shrinks inwards to the side wall of the opening of the upper film layer adjacent to the opening to form a bottom notch, and the bottom notch is formed in the touch control structure. According to the embodiment of the invention, one opening in the touch structure is set to be the bottom notch to increase the volume of the accommodating cavity, so that a color filter layer with a larger volume and a larger thickness can be accommodated, and the risk that an ink material of the color filter layer overflows when a thicker color filter layer is needed is reduced.

Description

Technical Field

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

[0002] Currently, in the depolarization process of OLED panels, the black matrix layer still uses photolithography, resulting in a thickness of only about 1 to 3 micrometers. This poses significant risks for the printing of the color filter layer, easily causing ink overflow and color mixing, affecting the film morphology and thickness of the color filter layer. Especially when the center thickness of each filter element in the color filter layer needs to reach more than 5 micrometers, the thin black matrix layer easily causes ink overflow into the openings of adjacent black matrix layers. In this case, to accommodate a larger volume of color filter ink within the openings of the black matrix layer, the contact angle between the color filter ink and the black matrix layer needs to be increased. This significantly increases the difficulty of developing the color filter ink and can also result in an excessively high central bulge in the color filter film, affecting optical performance. Summary of the Invention

[0003] This application provides a display panel and a display device to at least partially solve the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a display panel is provided, comprising: The display substrate includes multiple sub-pixels; A functional device is provided with multiple receiving cavities, each receiving cavity corresponding to a sub-pixel. The functional device includes a touch structure, a black matrix layer, and a color filter layer. The touch structure is disposed on the light-emitting side of the display substrate, and the black matrix layer is disposed on the side of the touch structure away from the display substrate. The touch structure includes at least two stacked insulating layers. In the thickness direction of the display panel, the receiving cavity continuously penetrates the black matrix layer and at least one insulating layer. The color filter layer is disposed within the receiving cavity. The cavity forms an opening for each of the black matrix layer and at least one of the two insulating layers.

[0005] Optionally, in some embodiments of this application, one of the opening sidewalls in the touch structure is recessed within the opening sidewall of the adjacent upper film layer to form a bottom cut, the bottom cut being formed in the touch structure.

[0006] Optionally, in some embodiments of this application, at least two insulating layers include a first insulating layer and a second insulating layer, wherein the first insulating layer is located on the side of the second insulating layer closer to the black matrix layer; The receiving cavity includes a first opening and a second opening that are connected, the first opening penetrating the black matrix layer and the second opening penetrating the first insulating layer; The width of the second opening is greater than the width of the first opening, and the sidewall of the second opening is recessed within the sidewall of the first opening to form the bottom cut.

[0007] Optionally, in some embodiments of this application, at least two insulating layers include a first insulating layer and a second insulating layer, wherein the first insulating layer is located on the side of the second insulating layer closer to the black matrix layer; The receiving cavity includes a first opening, a second opening, and a third opening that communicate with each other. The first opening penetrates the black matrix layer, the second opening penetrates the first insulating layer, and the third opening penetrates the second insulating layer. The width of the third opening is greater than the width of the second opening, and the sidewall of the third opening is recessed within the sidewall of the second opening to form the bottom cut.

[0008] Optionally, in some embodiments of this application, the width of the second opening is smaller than the width of the first opening.

[0009] Optionally, in some embodiments of this application, the width of the third opening is greater than the width of the first opening.

[0010] Optionally, in some embodiments of this application, at least two insulating layers include a first insulating layer, a second insulating layer, and a third insulating layer, wherein the first insulating layer is located on the side of the second insulating layer near the black matrix layer, the second insulating layer is located on the side of the third insulating layer near the black matrix layer, and the third insulating layer is disposed on the light-emitting side of the display substrate; The receiving cavity includes a first opening, a second opening, a third opening, and a fourth opening that communicate with each other. The first opening penetrates the black matrix layer, the second opening penetrates the first insulating layer, the third opening penetrates the second insulating layer, and the fourth opening penetrates the third insulating layer. The width of the fourth opening is greater than the width of the third opening, and the sidewall of the fourth opening is recessed within the sidewall of the third opening to form the bottom cut.

[0011] Optionally, in some embodiments of this application, the width of the second opening is greater than the width of the third opening, and the width of the first opening is greater than the width of the second opening.

[0012] Optionally, in some embodiments of this application, the width of the fourth opening is greater than the width of the second opening.

[0013] Optionally, in some embodiments of this application, the display substrate further includes an encapsulation layer covering the sub-pixel, and the touch structure is disposed on the side of the encapsulation layer away from the sub-pixel; the surface of at least the portion of the encapsulation layer located in the fourth opening region is hydrophilic.

[0014] Optionally, in some embodiments of this application, the touch structure includes a bridging wire and a touch electrode, and at least two insulating layers include a first insulating layer and a second insulating layer. The first insulating layer is located on the side of the second insulating layer near the black matrix layer. One of the bridging wire and the touch electrode is disposed between the first insulating layer and the second insulating layer, and the other of the bridging wire and the touch electrode is disposed on the side of the second insulating layer near the display substrate. The black matrix layer blocks the bridging wire and the touch electrode. In the display panel viewed from above, the bridging wires and the touch electrodes are located outside the bottom cutout.

[0015] Optionally, in some embodiments of this application, the touch structure includes a bridging wire and a touch electrode, and at least two insulating layers include a first insulating layer and a second insulating layer. The first insulating layer is located on the side of the second insulating layer near the black matrix layer. One of the bridging wire and the touch electrode is disposed between the first insulating layer and the second insulating layer, and the other of the bridging wire and the touch electrode is disposed on the side of the second insulating layer near the display substrate. The black matrix layer blocks the bridging wire and the touch electrode. In the display panel viewed from above, a portion of at least one of the bridging wires and the touch electrodes is located within the edge region of the bottom cutout.

[0016] Optionally, in some embodiments of this application, the surface of at least a portion of the film layer located in the bottom cut region adjacent to the side of the bottom cut near the display substrate is hydrophilic.

[0017] According to a second aspect of this application, a display device is provided, which includes a display panel as described in any of the above embodiments.

[0018] In the display panel and display device of this application embodiment, the display panel includes a display substrate and functional devices. Each functional device has multiple cavities, with one cavity corresponding to a sub-pixel. Each functional device includes a touch structure, a black matrix layer, and a color filter layer. The touch structure is disposed on the light-emitting side of the display substrate, and the black matrix layer is disposed on the side of the touch structure away from the display substrate. The touch structure includes at least two stacked insulating layers. In the thickness direction of the display panel, the cavity continuously penetrates the black matrix layer and at least one insulating layer. The color filter layer is disposed within the cavity. Each cavity forms an opening corresponding to one of the layers penetrating the black matrix layer and at least two insulating layers. The sidewall of one opening in the touch structure is recessed within the sidewall of the opening of the adjacent upper insulating layer to form a bottom cut. The bottom cut is formed within the touch structure.

[0019] It is understood that the embodiments of this application increase the volume of the receiving cavity by setting an opening in the touch structure as a bottom cut, thereby accommodating a larger volume and a thicker color filter layer, so as to reduce the risk of ink material overflow of the color filter layer when a thicker color filter layer is required.

[0020] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description 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 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.

[0021] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0022] Figure 1 This is a top view of the display panel provided in an exemplary embodiment of this disclosure; Figure 2 This is a cross-sectional structural diagram of the display panel provided in an exemplary embodiment of this disclosure; Figure 3 This is a schematic diagram of a second cross-sectional structure of the display panel provided in an exemplary embodiment of this disclosure; Figure 4 This is a third cross-sectional view of the display panel provided in an exemplary embodiment of this disclosure; Figure 5This is a fourth cross-sectional view of the display panel provided in an exemplary embodiment of this disclosure; Figure 6 This is a fifth cross-sectional structural diagram of the display panel provided in an exemplary embodiment of this disclosure; Figure 7 This is a sixth cross-sectional structural diagram of the display panel provided in an exemplary embodiment of this disclosure.

[0023] Figure 8 This is a seventh cross-sectional view of the display panel provided in an exemplary embodiment of this disclosure; Figure 9 This is an eighth cross-sectional structural diagram of the display panel provided in an exemplary embodiment of this disclosure; Figure 10 This is a ninth cross-sectional structural diagram of the display panel provided in an exemplary embodiment of this disclosure; Figure 11 This is a schematic diagram of the structure of a display device provided in an exemplary embodiment of this disclosure.

[0024] Explanation of reference numerals in the attached figures: Display panel 100; display substrate 10; encapsulation layer 12; sub-pixel 11; functional device 20; receiving cavity 20a; touch structure 21; black matrix layer 22; color filter layer 23; red filter 231; green filter 232; blue filter 233; insulating layer jy; opening kk; bottom notch uc; first insulating layer jy1; second insulating layer jy2; third insulating layer jy3; first opening k1; second opening k2; third opening k3; fourth opening k4; bridging wire 211; touch electrode 212; display device 1000. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0026] This application provides a display panel 100; please refer to [link / reference]. Figure 1 and Figure 2 , Figure 1 This is a top view of the display panel 100 provided in an exemplary embodiment of this disclosure. Figure 2 This is a cross-sectional view of the display panel 100 provided in an exemplary embodiment of this disclosure.

[0027] This application provides a display panel 100, which includes a display substrate 10 and functional devices 20. The functional devices 20 are disposed on the light-emitting side of the display substrate 10.

[0028] The display substrate 10 includes a plurality of sub-pixels 11.

[0029] The functional device 20 is provided with multiple receiving cavities 20a, and one receiving cavity 20a corresponds to one sub-pixel 11.

[0030] The functional device 20 includes a touch structure 21, a black matrix layer 22, and a color filter layer 23. The touch structure 21 is disposed on the light-emitting side of the display substrate 10, and the black matrix layer 22 is disposed on the side of the touch structure 21 away from the display substrate 10. The color filter layer 23 is disposed within the receiving cavity 20a.

[0031] The touch structure 21 includes at least two stacked insulating layers. In the thickness direction of the display panel 100, the receiving cavity 20a continuously penetrates the black matrix layer 22 and at least one insulating layer.

[0032] In this case, the cavity 20a forms an opening kk corresponding to each film layer that penetrates the black matrix layer 22 and at least two insulating layers jy.

[0033] Understandably, the cavity 20a penetrates not only the black matrix layer 22 but also at least one insulating layer of the touch structure 21 to increase the volume and depth of the cavity 20a, thereby accommodating a thicker color filter layer 23 and reducing the risk of ink material overflowing from the color filter layer 23 during printing.

[0034] Optionally, the depth of the receiving cavity 20a is between 1 micrometer and 10 micrometers, for example, it can be 1 micrometer, 2 micrometer, 3 micrometer, 4 micrometer, 5 micrometer, 6 micrometer, 7 micrometer, 8 micrometer, 9 micrometer, or 10 micrometer.

[0035] Optionally, the display substrate 10 is an electroluminescent display substrate, such as an organic light-emitting diode display substrate or a quantum dot light-emitting diode display substrate.

[0036] Optionally, the display substrate 10 further includes an encapsulation layer 12 covering the sub-pixels 11. Optionally, the encapsulation layer 12 may include, but is not limited to, an inorganic encapsulation layer, an organic encapsulation layer, and an inorganic encapsulation layer stacked in sequence.

[0037] Optionally, in some embodiments, the plurality of sub-pixels 11 include red sub-pixels, green sub-pixels, and blue pixels. The color filter layer 23 includes a red filter portion 231, a green filter portion 232, and a blue filter portion 233. The red filter portion 231 covers the red sub-pixels, the green filter portion 232 covers the green sub-pixels, and the blue filter portion 233 covers the blue sub-pixels.

[0038] Optionally, in some embodiments, the touch structure 21 is configured to implement touch functionality.

[0039] Optionally, an opening kk sidewall in the touch structure 21 is recessed into the opening kk sidewall of the adjacent upper film layer to form a bottom cut uc, and the bottom cut uc is formed in the touch structure 21.

[0040] It is understood that the embodiments of this application further increase the volume of the receiving cavity 20a by setting an opening kk in the touch structure 21 as a bottom cutout uc, thereby accommodating a larger volume of color filter layer 23, so as to reduce the risk of ink material overflow of the color filter layer 23 when a thicker color filter layer 23 is required.

[0041] Optionally, in some embodiments of this application, the surface of at least the portion of the film layer located in the bottom cutout uc region adjacent to the side of the display substrate 10 at the bottom cutout uc is hydrophilic.

[0042] Understandably, setting the bottom surface of the bottom-cut UC to be hydrophilic increases the ink flow within the bottom-cut UC by increasing the contact angle between the ink in the color filter layer 23 and the bottom surface of the bottom-cut UC, thereby reducing the risk of air bubbles forming in the color filter layer 23 within the bottom-cut UC. This hydrophilic surface can be formed by modifying the bottom surface of the bottom-cut UC.

[0043] Optionally, in some embodiments of this application, at least two insulating layers jy include a first insulating layer jy1 and a second insulating layer jy2, with the first insulating layer jy1 located on the side of the second insulating layer jy2 ​​close to the black matrix layer 22.

[0044] The cavity 20a includes a first opening k1 and a second opening k2 that are connected. The first opening k1 penetrates the black matrix layer 22, and the second opening k2 penetrates the first insulating layer jy1.

[0045] The width of the second opening k2 is greater than the width of the first opening k1, and the sidewall of the second opening k2 is recessed into the sidewall of the first opening k1 to form a bottom cut uc.

[0046] Optionally, the touch structure 21 includes a bridging wire 211 and a touch electrode 212, with the first insulating layer jy1 located on the side of the second insulating layer jy2 ​​near the black matrix layer 22. One of the bridging wire 211 and the touch electrode 212 is disposed between the first insulating layer jy1 and the second insulating layer jy2, and the other of the bridging wire 211 and the touch electrode 212 is disposed on the side of the second insulating layer jy2 ​​near the display substrate 10. The black matrix layer 22 blocks the bridging wire 211 and the touch electrode 212.

[0047] It is understood that in some embodiments, the bridging wire 211 is disposed between the first insulating layer jy1 and the second insulating layer jy2, and the touch electrode 212 is disposed on the side of the second insulating layer jy2 ​​near the display substrate 10. In other embodiments, the touch electrode 212 is disposed between the first insulating layer jy1 and the second insulating layer jy2, and the bridging wire 211 is disposed on the side of the second insulating layer jy2 ​​near the display substrate 10, such as... Figure 2 As shown.

[0048] The touch electrode 212 includes a driving electrode and a sensing electrode, and the bridging wire 211 is configured to connect two adjacent driving electrodes or sensing electrodes.

[0049] The black matrix layer 22 shields the bridging line 211 and the touch electrode 212 to block reflected light from the bridging line 211 and the touch electrode 212. At the same time, the edge of the first opening k1 is located outside the edge of the sub-pixel 11 to prevent obstruction of light emission from the sub-pixel 11.

[0050] Optionally, in some embodiments of this application, the surface of the second insulating layer jy2, at least in the portion located in the bottom notch uc region, is hydrophilic. The area of ​​the hydrophilic surface of the second insulating layer jy2 ​​is larger than the opening area of ​​the bottom notch uc. For example, the area of ​​the hydrophilic surface of the second insulating layer jy2 ​​can be partial, or the entire surface of the second insulating layer jy2 ​​can be hydrophilic.

[0051] Optionally, in some embodiments, at least two insulating layers jy further include a third insulating layer jy3, which is disposed on the side of the second insulating layer jy2 ​​near the display substrate 10.

[0052] Optionally, the materials of the first insulating layer jy1, the second insulating layer jy2, and the third insulating layer jy3 are inorganic materials, such as silicon oxyoxygen, silicon nitrogen, silicon oxynitride, aluminum oxide, etc.

[0053] Optionally, in some embodiments, in the display panel 100 viewed from above, the bridging wire 211 and the touch electrode 212 are located outside the bottom cutout uc to avoid exposing the touch electrode 212 and improve the protection of the touch electrode 212.

[0054] In some embodiments, with Figure 2 Taking the embodiment as an example, the process of fabricating the bottom cutout uc is as follows: First, the first insulating layer jy1 is patterned to form the second opening k2. Then, the second opening k2 is filled with a filling material that is different from the materials of the first insulating layer jy1 and the black matrix layer 22, such as organic materials or metal materials. Next, the patterned black matrix layer 22 is prepared to form the first opening k1, and the first opening k1 exposes the portion of the filling material. Then, the filling material is removed with an etching solution to form the bottom cutout uc.

[0055] Alternatively, please refer to Figure 3 In some embodiments, in the display panel 100 viewed from above, a portion of at least one of the bridging wire 211 and the touch electrode 212 is located within the edge region of the bottom cutout uc.

[0056] like Figure 3 The corresponding embodiment is provided as an example, but is not limited thereto. The edge region of the bottom notch uc partially exposes a portion of the touch electrode 212 to increase the width of the bottom notch uc, increase the volume of the receiving cavity 20a, and thereby increase the volume of the ink material accommodating the color filter layer 23, reducing the risk of overflow.

[0057] Secondly, the color filter layer 23 covers part of the touch electrode 212 to further reduce external reflectivity.

[0058] Please refer to Figure 4 , Figure 4 This is a third cross-sectional view of the display panel 100 provided in an exemplary embodiment of this disclosure. Figure 4 In this section, some differences from the above embodiments will be described to avoid redundancy.

[0059] like Figure 4 As shown, in some embodiments of this application, at least two insulating layers jy include a first insulating layer jy1 and a second insulating layer jy2, with the first insulating layer jy1 located on the side of the second insulating layer jy2 ​​close to the black matrix layer 22.

[0060] The receiving cavity 20a includes a first opening k1, a second opening k2 and a third opening k3 that are connected. The first opening k1 penetrates the black matrix layer 22, the second opening k2 penetrates the first insulating layer jy1, and the third opening k3 penetrates the second insulating layer jy2.

[0061] The width of the third opening k3 is greater than the width of the second opening k2, and the sidewall of the third opening k3 is recessed into the sidewall of the second opening k2 to form the bottom cut uc.

[0062] It is understood that the receiving cavity 20a includes a first opening k1, a second opening k2 and a third opening k3, which increases the depth of the receiving cavity 20a and increases its volume, thereby increasing the volume of ink material that can accommodate the color filter layer 23 and reducing the risk of overflow.

[0063] Optionally, in some embodiments of this application, the surface of the third insulating layer jy3, at least in the portion located in the bottom notch uc region, is hydrophilic. The area of ​​the hydrophilic surface of the third insulating layer jy3 is larger than the opening area of ​​the bottom notch uc. For example, the area of ​​the hydrophilic surface of the third insulating layer jy3 can be partial, or the entire surface of the third insulating layer jy3 can be hydrophilic.

[0064] Optionally, in some embodiments of this application, the width of the second opening k2 is smaller than the width of the first opening k1 to prevent obstruction of light emission from the sub-pixel 11.

[0065] Optionally, in some embodiments of this application, the width of the third opening k3 is greater than the width of the first opening k1, so as to further increase the width of the bottom cut uc, increase the volume of the receiving cavity 20a, thereby increasing the volume of the ink material containing the color filter layer 23 and reducing the risk of overflow.

[0066] Optionally, in some embodiments of this application, the bottom cutout uc is located around the bridging wire 211 and the touch electrode 212 to ensure that the insulating layer jy fully covers the bridging wire 211 and the touch electrode 212.

[0067] Figure 5 This is a fourth cross-sectional view of the display panel 100 provided in an exemplary embodiment of this disclosure. Figure 5 In this section, some differences from the above embodiments will be described to avoid redundancy.

[0068] Optionally, in some embodiments of this application, the bottom cutout uc exposes a portion of the touch electrode 212 on the side closest to the display substrate 10 to increase the width of the bottom cutout uc, increase the volume of the receiving cavity 20a, and thereby increase the volume of the ink material containing the color filter layer 23, reducing the risk of overflow.

[0069] Secondly, the color filter layer 23 covers part of the bridging line 211 to further reduce external reflectivity.

[0070] Please refer to Figure 6 , Figure 6 This is a fifth cross-sectional view of the display panel 100 provided in an exemplary embodiment of this disclosure. Figure 6 In this section, some differences from the above embodiments will be described to avoid redundancy.

[0071] Optionally, in some embodiments of this application, at least two insulating layers jy include a first insulating layer jy1, a second insulating layer jy2, and a third insulating layer jy3. The first insulating layer jy1 is located on the side of the second insulating layer jy2 ​​that is close to the black matrix layer 22, the second insulating layer jy2 ​​is located on the side of the third insulating layer jy3 that is close to the black matrix layer 22, and the third insulating layer jy3 is disposed on the light-emitting side of the display substrate 10.

[0072] The receiving cavity 20a includes a first opening k1, a second opening k2, a third opening k3, and a fourth opening k4 that are connected. The first opening k1 penetrates the black matrix layer 22, the second opening k2 penetrates the first insulating layer jy1, the third opening k3 penetrates the second insulating layer jy2, and the fourth opening k4 penetrates the third insulating layer jy3.

[0073] The width of the fourth opening k4 is greater than the width of the third opening k3, and the sidewall of the fourth opening k4 is recessed into the sidewall of the third opening k3 to form the bottom cut uc.

[0074] It is understood that the receiving cavity 20a includes a first opening k1, a second opening k2, a third opening k3 and a fourth opening k4, which increases the depth of the receiving cavity 20a, increases the volume of the receiving cavity 20a, and thus increases the volume of ink material that can accommodate the color filter layer 23, reducing the risk of overflow.

[0075] Optionally, in some embodiments of this application, the surface of at least the portion of the encapsulation layer 12 located in the region of the fourth opening k4 is hydrophilic.

[0076] It is understood that the surface of the encapsulation layer 12, at least in the region of the bottom notch uc (fourth opening k4), is hydrophilic. The area of ​​the hydrophilic surface of the encapsulation layer 12 is larger than the opening area of ​​the bottom notch uc. For example, the area of ​​the hydrophilic surface of the encapsulation layer 12 can be partial or the entire surface of the encapsulation layer 12 can be hydrophilic.

[0077] Optionally, in some embodiments of this application, the width of the second opening k2 is greater than the width of the third opening k3, and the width of the first opening k1 is greater than the width of the second opening k2, so as to prevent obstruction of the light emission of the sub-pixel 11.

[0078] Optionally, in some embodiments of this application, the width of the fourth opening k4 is greater than the width of the second opening k2, so as to further increase the width of the bottom cut uc, increase the volume of the receiving cavity 20a, thereby increasing the volume of the ink material containing the color filter layer 23 and reducing the risk of overflow.

[0079] Optionally, in some embodiments of this application, the bottom cutout uc is located around the bridging wire 211 and the touch electrode 212 to ensure that the insulating layer jy fully covers the bridging wire 211 and the touch electrode 212.

[0080] Figure 7 This is a sixth cross-sectional view of the display panel 100 provided in an exemplary embodiment of this disclosure. Figure 7 In this section, some differences from the above embodiments will be described to avoid redundancy.

[0081] Optionally, in some embodiments of this application, the bottom cutout uc exposes a portion of the bridge wire 211 on the side near the display substrate 10 to increase the width of the bottom cutout uc, increase the volume of the receiving cavity 20a, and thereby increase the volume of the ink material containing the color filter layer 23, reducing the risk of overflow.

[0082] Please refer to Figure 8 , Figure 8 This is a seventh cross-sectional view of the display panel 100 provided in an exemplary embodiment of this disclosure. Figure 8 In this section, some differences from the above embodiments will be described to avoid redundancy.

[0083] Optionally, in some embodiments of this application, the width of the first opening k1 is greater than the width of the second opening k2, that is, the second opening k2 does not form a bottom cut uc, thereby avoiding the risk of the black matrix layer 22 collapsing at the second opening k2.

[0084] Please refer to Figure 9 , Figure 9 This is an eighth cross-sectional structural diagram of the display panel 100 provided in an exemplary embodiment of this disclosure. Figure 9 In this section, some differences from the above embodiments will be described to avoid redundancy.

[0085] Optionally, in some embodiments of this application, the width of the first opening k1 is greater than the width of the second opening k2, and the second opening k2 is greater than the third opening k3. That is, neither the second opening k2 nor the third opening k3 forms a bottom cut uc, thereby avoiding the risk of the black matrix layer 22 and the first insulating layer jy1 collapsing at the third opening k3.

[0086] Please refer to Figure 10 , Figure 10 This is a ninth cross-sectional structural diagram of the display panel 100 provided in an exemplary embodiment of this disclosure. Figure 10 In this section, some differences from the above embodiments will be described to avoid redundancy.

[0087] Optionally, in some embodiments of this application, the width of the first opening k1 is greater than the width of the second opening k2, the second opening k2 is greater than the third opening k3, and the width of the third opening k3 is greater than the width of the fourth opening k4. That is, the second opening k2, the third opening k3, and the fourth opening k4 do not form a bottom cut uc, thereby avoiding the risk of the black matrix layer 22, the first insulating layer jy1, and the second insulating layer jy2 ​​collapsing at the fourth opening k4.

[0088] Please refer to Figure 11 , Figure 11 This is a schematic diagram of the structure of a display device 1000 provided in an embodiment of this application. The display device 1000 provided in this application includes a display panel 100 as described in any of the above embodiments.

[0089] It should be noted that the structure of the display panel 100 of the display device 1000 in this application embodiment is similar to or the same as the structure of the display panel 100 described in the above embodiments. For details, please refer to... Figures 1 to 10 The relevant explanations will not be repeated here.

[0090] Optionally, the display device 1000 can be at least one of the following: smartphone, tablet, mobile phone, video phone, e-book reader, desktop computer, laptop, netbook, workstation, server, personal digital assistant, portable media player, MP3 player, television, mobile medical device, camera, game console, digital camera, car navigation system, in-vehicle display, electronic billboard, ATM, or wearable device, VR device, AR device.

[0091] In the display device 1000 of this application embodiment, the display panel 100 includes a display substrate 10 and a functional device 20. The functional device 20 is provided with a plurality of receiving cavities 20a, each receiving cavity 20a corresponding to a sub-pixel 11. The functional device 20 includes a touch structure 21, a black matrix layer 22, and a color filter layer 23. The touch structure 21 is disposed on the light-emitting side of the display substrate 10, and the black matrix layer 22 is disposed on the side of the touch structure 21 away from the display substrate 10. The touch structure 21 includes at least two stacked insulating layers jy. In the thickness direction of the display panel 100, the receiving cavity 20a continuously penetrates the black matrix layer 22 and at least one insulating layer jy. The color filter layer 23 is disposed within the receiving cavity 20a. Each time the receiving cavity 20a penetrates one film layer of the black matrix layer 22 and at least two insulating layers jy, an opening kk is formed.

[0092] It is understood that the embodiments of this application increase the volume of the receiving cavity 20a by providing an opening kk in the touch structure 21, thereby accommodating a larger volume and thicker color filter layer 23, so as to reduce the risk of ink material overflow of the color filter layer 23 when a thicker color filter layer 23 is required.

[0093] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0094] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0095] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0096] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display panel, characterized in that, include: The display substrate includes multiple sub-pixels; A functional device is provided with multiple receiving cavities, each receiving cavity corresponding to a sub-pixel. The functional device includes a touch structure, a black matrix layer, and a color filter layer. The touch structure is disposed on the light-emitting side of the display substrate, and the black matrix layer is disposed on the side of the touch structure away from the display substrate. The touch structure includes at least two stacked insulating layers. In the thickness direction of the display panel, the receiving cavity continuously penetrates the black matrix layer and at least one insulating layer. The color filter layer is disposed within the receiving cavity. In this embodiment, the receiving cavity forms an opening corresponding to each of the black matrix layer and at least two insulating layers, and the sidewall of one of the openings in the touch structure is recessed into the sidewall of the opening of the adjacent upper film layer to form a bottom cut, and the bottom cut is formed in the touch structure.

2. The display panel according to claim 1, characterized in that, The at least two insulating layers include a first insulating layer and a second insulating layer, wherein the first insulating layer is located on the side of the second insulating layer closer to the black matrix layer; The receiving cavity includes a first opening and a second opening that are connected, the first opening penetrating the black matrix layer and the second opening penetrating the first insulating layer; The width of the second opening is greater than the width of the first opening, and the sidewall of the second opening is recessed within the sidewall of the first opening to form the bottom cut.

3. The display panel according to claim 1, characterized in that, The at least two insulating layers include a first insulating layer and a second insulating layer, wherein the first insulating layer is located on the side of the second insulating layer closer to the black matrix layer; The receiving cavity includes a first opening, a second opening, and a third opening that communicate with each other. The first opening penetrates the black matrix layer, the second opening penetrates the first insulating layer, and the third opening penetrates the second insulating layer. The width of the third opening is greater than the width of the second opening, and the sidewall of the third opening is recessed within the sidewall of the second opening to form the bottom cut.

4. The display panel according to claim 3, characterized in that, The width of the second opening is smaller than the width of the first opening.

5. The display panel according to claim 4, characterized in that, The width of the third opening is greater than the width of the first opening.

6. The display panel according to claim 1, characterized in that, The at least two insulating layers include a first insulating layer, a second insulating layer, and a third insulating layer. The first insulating layer is located on the side of the second insulating layer that is close to the black matrix layer, and the second insulating layer is located on the side of the third insulating layer that is close to the black matrix layer. The third insulating layer is disposed on the light-emitting side of the display substrate. The receiving cavity includes a first opening, a second opening, a third opening, and a fourth opening that communicate with each other. The first opening penetrates the black matrix layer, the second opening penetrates the first insulating layer, the third opening penetrates the second insulating layer, and the fourth opening penetrates the third insulating layer. The width of the fourth opening is greater than the width of the third opening, and the sidewall of the fourth opening is recessed within the sidewall of the third opening to form the bottom cut.

7. The display panel according to claim 6, characterized in that, The width of the second opening is greater than the width of the third opening, and the width of the first opening is greater than the width of the second opening.

8. The display panel according to claim 7, characterized in that, The width of the fourth opening is greater than the width of the second opening.

9. The display panel according to claim 6, characterized in that, The display substrate further includes an encapsulation layer covering the sub-pixel, and the touch structure is disposed on the side of the encapsulation layer away from the sub-pixel; the surface of at least the portion of the encapsulation layer located in the fourth opening region is hydrophilic.

10. The display panel according to any one of claims 1-9, characterized in that, The touch structure includes a bridging wire and a touch electrode. The at least two insulating layers include a first insulating layer and a second insulating layer. The first insulating layer is located on the side of the second insulating layer near the black matrix layer. One of the bridging wire and the touch electrode is disposed between the first insulating layer and the second insulating layer. The other of the bridging wire and the touch electrode is disposed on the side of the second insulating layer near the display substrate. The black matrix layer blocks the bridging wire and the touch electrode. In the display panel viewed from above, the bridging wires and the touch electrodes are located outside the bottom cutout.

11. The display panel according to any one of claims 1-9, characterized in that, The touch structure includes a bridging wire and a touch electrode. The at least two insulating layers include a first insulating layer and a second insulating layer. The first insulating layer is located on the side of the second insulating layer near the black matrix layer. One of the bridging wire and the touch electrode is disposed between the first insulating layer and the second insulating layer. The other of the bridging wire and the touch electrode is disposed on the side of the second insulating layer near the display substrate. The black matrix layer blocks the bridging wire and the touch electrode. In the display panel viewed from above, a portion of at least one of the bridging wires and the touch electrodes is located within the edge region of the bottom cutout.

12. The display panel according to any one of claims 1-8, characterized in that, The surface of at least a portion of the film layer located in the bottom cut region adjacent to the display substrate is hydrophilic.

13. A display device, characterized in that, Includes the display panel as described in any one of claims 1-12.

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