Display module and display device

Abstract

A display panel and a display device. The display panel comprises: a substrate (10); a plurality of barrier blocks (20) arranged at intervals on the substrate (10); color resist blocks (40) located in the intervals between adjacent barrier blocks (20); and an isolation layer (30) covering the color resist blocks (40) and the barrier blocks (20), wherein the barrier blocks (20) are separated from the color resist blocks (40) and the isolation layer (30) by means of an inorganic layer (70), and each barrier block (20) comprises a low-reflection structure layer. By using a low-reflection structure layer as a barrier block (20), the resolution of the barrier block (20) can be improved; and in a manufacturing process, the barrier block (20) has few burrs, and the edge of the barrier block (20) is more flat.

Description

Display modules and display devices

[0001] This application claims priority to Chinese patent application No. 202311122942.2 filed on August 30, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of liquid crystal display technology, and in particular to a display panel and a display device. Background Art

[0003] In LCDs, color filters are used to create color. The black matrix (BM) in the color filter structure is a crucial layer, providing light shielding. BM not only improves panel contrast and prevents RGB (red, green, blue) color mixing, but also provides alignment marks (light shielding) for subsequent manufacturing processes. BM material is typically organic photoresist, which offers excellent light shielding and low reflectivity. However, organic BM has low resolution, resulting in poor display quality in high-resolution LCDs. Summary of the Invention

[0004] The embodiments of this application disclose the following technical solutions:

[0005] In a first aspect, a display panel is provided, comprising a substrate, a plurality of blocking blocks, a color blocking block, an inorganic layer and an insulating layer; the plurality of blocking blocks are arranged at intervals on the substrate; the color blocking blocks are located between adjacent blocking blocks; the inorganic layer covers the blocking blocks; the insulating layer covers the color blocking blocks and the inorganic layer; wherein the blocking blocks include a low-reflection structural layer.

[0006] In a second aspect, a display device is provided, comprising the display panel as described in any embodiment of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0008] FIG1 is a schematic diagram of a first cross-sectional structure of a display panel provided in some embodiments of the present application;

[0009] FIG2 is a schematic diagram of a second cross-sectional structure of a display panel provided in some embodiments of the present application;

[0010] FIG3 is a schematic diagram of a third cross-sectional structure of a display panel provided in some embodiments of the present application;

[0011] FIG4 is a schematic diagram of a first cross-sectional structure of a blocking block provided in some embodiments of the present application;

[0012] FIG5 is a schematic diagram of a second cross-sectional structure of a blocking block provided in some embodiments of the present application;

[0013] FIG6 is a schematic diagram showing the effects of different inorganic film layers on the reflectivity of a semiconductor structure provided by an embodiment of the present application.

[0014] The reference numerals are as follows:

[0015] 10 - substrate, 20 - blocking block, 21 - metal layer, 22 - oxide layer, 30 - isolation layer, 40 - color blocking block, 50 - connecting block, 60 - black matrix, 70 - inorganic layer, 71 - first inorganic film layer, 72 - second inorganic film layer, 73 - third inorganic film layer, 80 - composite layer. Modes for Carrying Out the Invention

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0017] The applicant notes that in liquid crystal displays (LCDs), color filters are used to enhance the display's color. As shown in Figure 1, within the color filter structure, the black matrix (BM) (60) is a key layer, providing light shielding, enhancing panel contrast and preventing RGB (red, green, blue) color mixing. It also provides alignment marks (light shielding) for subsequent manufacturing processes. The BM material is typically organic photoresist, which offers excellent light shielding and low reflectivity. However, organic BM also suffers from limitations such as low resolution and burrs on narrow line widths, making it unsuitable for use in high-resolution display products.

[0018] The present application provides a display panel and a display device to solve the technical problem in the prior art that the organic BM has low resolution, resulting in poor display effects of the display panel.

[0019] The specific implementation of this application is described below through examples:

[0020] As shown in FIG2 , an embodiment of the present application provides a display panel comprising: a substrate 10, a plurality of blocking blocks 20, a color resist block 40, an inorganic layer 70, and an insulating layer 30. The plurality of blocking blocks 20 are spaced apart on the substrate 10; the color resist blocks 40 are located between adjacent blocking blocks 20; the inorganic layer covers the blocking blocks; and the insulating layer 30 covers the color resist blocks 40 and the blocking blocks 20. The blocking blocks 20 comprise a low-reflective structural layer. Specifically, the blocking blocks 20 are evenly spaced on the substrate 10, with spaces remaining between adjacent blocking blocks 20. The color resist blocks 40 are positioned one by one between two blocking blocks 20, and the upper half of the color resist blocks 40 is provided with protruding connecting blocks on both sides, which overlap the blocking blocks 20 on either side. Generally speaking, the color resist blocks 40 include three RGB color resists: red, green, and blue. The three color resists are arranged and distributed according to specific circumstances. To prevent the color resist block 40 from interfering with the barrier block 20, an inorganic layer 70 is added between the color resist block 40 and the barrier block 20 to protect the barrier block 20. The present application uses a low-reflective structure layer as the barrier block 20 to improve the display image of the display panel, reduce reflected light, and thus enhance the display effect.

[0021] As shown in Figures 2 and 3, in an embodiment of the present application, the low-reflection structural layer includes an oxide layer 22; or, a metal layer 21 and an oxide layer 22 are stacked, the oxide layer 22 is located on the substrate 10, and the metal layer 21 is located on the side of the oxide layer 22 away from the substrate 10. Specifically, when the oxide layer 22 of low-reflection material is used as the photoresist material of the blocking block 20, the preparation process of the blocking block 20 is simple, which can not only effectively improve the shading effect but also has a low reflectivity, and can improve the display effect of the display panel; and when the metal layer 21 and the oxide layer 22 are stacked with each other to form the blocking block 20, the shading effect of the blocking block 20 is more obvious and the reflectivity is lower, and the display effect of the liquid crystal display panel is better. It can be understood that the material of the oxide layer 22 includes MoO x , or MoO x It is stacked with metals such as molybdenum (Mo), copper (Cu), titanium (Ti) and aluminum (Al). Since the three RGB color resists are developed, the developer chemical KOH will dissolve MoO xFurthermore, the adhesion between metal and OC (Optical Clear) films is also poor, which can cause the films to peel or delaminate. As shown in Tables 1 and 2 below, adhesion tests were conducted on single-layer glass coated with inorganic / Mo films using R / G / B / OC films. The results show that peeling occurred between the Mo and OC films, indicating that the adhesion between the Mo and OC films is not as good as that between the inorganic and OC films. In Table 2, "OK" indicates high adhesion and resistance to peeling, while "NG" (No Good) indicates poor adhesion or adhesion failure.

[0022] Table 1

[0023]

[0024] [Corrected 13.06.2024 in accordance with Article 91][Deleted]

[0025] [Corrected 13.06.2024 in accordance with Article 91][Deleted]

[0026] As shown in Figure 4, in an embodiment of the present application, the low-reflection structure layer includes a stacked first inorganic film layer 71, an oxide layer 22, a metal layer 21, and a second inorganic film layer 72. The first inorganic film layer 71 is located on the substrate 10, the oxide layer 22 is located on the side of the first inorganic film layer 71 facing away from the substrate 10, the metal layer 21 is located on the side of the oxide layer 22 facing away from the substrate 10, and the second inorganic film layer 72 is located on the side of the metal layer 21 facing away from the substrate 10. The first inorganic film layer 71 and the second inorganic film layer 72 can be made of the same or different materials. Specifically, by adding the first inorganic film layer 71 to the substrate 10, the effect of light path reflection can be further weakened, thereby further reducing the reflectivity of light. In addition, the inorganic film layer can improve the color gamut, further optimizing the display effect. Therefore, the first inorganic film layer 71 can be first added to the substrate 10, and then the oxide layer 22 and the metal layer 21 can be added separately to achieve further light shielding. Finally, the second inorganic film layer 72 can be added to further reduce the reflectivity. In the embodiment of the present application, the first inorganic film layer 71 and the second inorganic film layer 72 are made of the same material, which can be SiO X 、SiN X Or the first inorganic film layer 71 and the second inorganic film layer 72 are made of different materials, such as SiO X or SiN X It is understandable that the inorganic film layer is covered on the glass with the low-reflection structure layer as a protective layer. The refractive index of the inorganic film layer is greater than that of the glass substrate. The adhesion test results must meet the ISO standard of 0 to 1 to protect the low-reflection structure layer and improve the adhesion with OC. The material of the inorganic film layer can be SiO x 、SiN xAt the same time, through optical simulation, it was found that after adding the inorganic film layer, the optical performance of the entire structure was further optimized. As shown in Figure 6, compared with the MoOx+Mo stack, the addition of SiN x The reflectivity of the stacked structure of inorganic films is further reduced due to the SiO x The refractive index is not much different from that of glass, and the degree of optimization of the overall reflectivity is not great. As shown in Figure 5, in an embodiment of the present application, the low-reflection structure layer includes a stacked first inorganic film layer 71, a composite layer 80, a second inorganic film layer 72, a metal layer 21, and a third inorganic film layer 73; the first inorganic film layer 71 is located on the substrate 10, and the composite layer 80 is located on the side of the first inorganic film layer 71 facing away from the substrate 10. The composite layer 80 includes an oxide layer 22 and a metal layer 21 stacked on each other, the metal layer 21 is located on the side of the composite layer 80 facing away from the first inorganic film layer 71, and the third inorganic film layer 73 is located on the side of the metal layer 21 facing away from the composite layer 80; wherein the materials of the first inorganic film layer 71, the second inorganic film layer 72, and the third inorganic film layer 73 are the same or different. Specifically, by adding the first inorganic film layer 71 to the substrate 10, the effect of light path reflection can be further weakened, so that the reflectivity of light is further reduced, and the inorganic film layer can improve the color gamut, which can further optimize the display effect. Therefore, a first inorganic film layer 71 can be added to the substrate 10, and then a composite layer 80 composed of a metal and an oxide can be added to achieve further light shielding, and then a second inorganic film layer 72 and a metal layer 21 can be added respectively, and finally a third inorganic film layer 73 can be added to further reduce the reflectivity. In the embodiment of the present application, the materials of the first inorganic film layer 71, the second inorganic film layer 72 and the third inorganic film layer 73 can be the same or different. The material can be SiO x 、SiN x In some embodiments of the present application, the thickness of the first inorganic film layer 71, the second inorganic film layer 72 and the third inorganic film layer 73 is 200-2000 am (1 am = 0.001 fm, femtometer). x The increase in color gamut improves the display effect. The specific data is shown in Table 3 below:

[0027] Table 3

[0028]

[0029] In Table 3, Rx and Ry represent the parameters of Red, i.e., red, in the xy coordinates of the chromaticity diagram; Gx and Gy represent the parameters of Green, i.e., green, in the xy coordinates of the chromaticity diagram; Bx and By represent the parameters of Blue, i.e., blue, in the xy coordinates of the chromaticity diagram; Wx and Wy represent the parameters of white, i.e., white, in the xy coordinates of the chromaticity diagram. As can be seen from Table 3, only Glass and Glass+SiO xWhen compared with the combination of Glass+SiO x The color gamut of the combination is higher, so it can be proved that adding SiO to the glass x The display effect can be optimized.

[0030] As shown in FIG3 , in an embodiment of the present application, the inorganic layer 70 covers the blocking blocks 20, the two side surfaces of the color resist blocks 40 are respectively connected to the adjacent inorganic layer 70, and the bottom surface of the color resist blocks 40 is connected to the substrate 10. Specifically, the blocking blocks 20 are arranged at intervals on the substrate 10, and the inorganic layer 70 completely covers the blocking blocks 20. In the intervals between the blocking blocks 20, the inorganic layer 70 is disconnected, exposing the substrate 10. The bottom of the color resist block 40 is directly connected to the substrate 10, and the two sides of the color resist block 40 are connected to the adjacent inorganic layer 70. This improves the light transmittance and reduces light leakage, further enhancing the display effect of the liquid crystal display panel.

[0031] As shown in Figure 2, in an embodiment of the present application, the inorganic layer 70 covers the blocking block 20 and the substrate 10, and the two side surfaces and the bottom surface of the color resist block 40 are located on the inorganic layer 70. The inorganic layer and the substrate enclose a groove, part of the structure of the color resist block is located in the groove, and the other structure of the color resist block is located on the inorganic layer. Specifically, the blocking blocks 20 are arranged on the substrate 10 at intervals, and the inorganic layer 70 completely covers the blocking blocks 20 and the exposed substrate 10. Therefore, the bottom surface of the color resist block 40 is connected to the inorganic layer 70, and the two sides of the color resist block 40 are connected to the inorganic layer 70 covering the blocking block 20. The extended color resist block 40 improves the light transmittance and reduces light leakage. The inorganic layer 70 improves the color gamut and optimizes the display effect of the liquid crystal display panel.

[0032] In the embodiment of the present application, the color resist block 40 and the blocking block 20 have a partial overlapping area along the first direction X. Specifically, the first direction X is the height direction of the color resist block 40, and the second direction Y is the horizontal direction, with the second direction Y being perpendicular to the first direction X. In the first direction X, the height of the color resist block 40 is greater than the height of the blocking block 20. In the elevated portion, the color resist block 40 extends toward the adjacent blocking block 20 and covers a portion of the blocking block 20, thereby preventing light from escaping from the seam between the color resist block 40 and the blocking block 20 in some cases, causing light leakage in the liquid crystal display panel. The extra overlapping portion of the color resist block 40 prevents light from leaking from the seam and also prevents light from refracting and escaping from the inorganic layer 70, thereby reducing color aberration and improving the display quality of the liquid crystal display panel.

[0033] In the embodiment of the present application, a connecting block 50 is provided on the side of the isolation layer 30 away from the blocking block 20. Specifically, the connecting block 50 is a P-Space, a hole space layer structure doped with positively charged hole (electron-deficient) carriers. P-Space typically corresponds to N-Space (a region composed of N-type semiconductor material doped with negatively charged electron carriers), and the two together form a PN junction or PN structure. PN junctions are common structures in semiconductor devices, used to implement the functions of diodes, transistors, and other electronic devices.

[0034] In the embodiment of the present application, the metal layer 21 comprises a composite structure layer of one or more of molybdenum, copper, titanium, or aluminum. Specifically, the metal layer 21, the oxide layer 22, and the inorganic film layer constitute the barrier block 20. Therefore, the metal in the metal layer 21 requires low reflectivity. Titanium and molybdenum are both low-reflectivity metal materials. Coated copper, coated aluminum, coated gold, and coated silver also have low reflectivity. Using a low-reflectivity material as the metal layer 21 of the barrier block 20 can reduce reflectivity, thereby improving the display quality of the display panel.

[0035] In the embodiment of the present application, the material of the oxide layer 22 includes MoO X When molybdenum oxide has a certain crystal structure and thickness, it has a low reflectivity. Therefore, molybdenum oxide can be used as a good low-reflection material. When low-reflectivity molybdenum oxide is combined with the low-reflectivity metal layer 21, the reflectivity of the blocking block 20 can be further reduced, thereby improving the light shielding effect.

[0036] As shown in FIG2 , an embodiment of the present application further provides a method for manufacturing a display panel, the method comprising:

[0037] S1: Provide a substrate 10. The substrate 10 is generally a color filter. The color filter is usually made of glass and has a certain thickness.

[0038] S2 : forming a plurality of stoppers 20 on the substrate 10 .

[0039] The specific steps are:

[0040] An oxidation structure is formed on the substrate 10, and part of the oxidation structure is removed to obtain a plurality of discontinuously arranged oxide layers 22; an oxidation material is deposited on the substrate 10 to obtain one or more oxidation structures, a photoresist is coated on the oxidation structure, a portion to be retained is shielded by a light shielding plate and then exposed to light, and then an elution solution is used to wash away the unshielded portion to obtain a plurality of discontinuously arranged oxide layers 22.

[0041] The metal layer 21 is formed on the oxide layer 22. The metal layer 21 can be formed on the oxide layer 22 by the same method as described above, or after the oxide structure is formed, a metal structure is formed on the oxide structure, photoresist is coated on the metal structure, and the portion to be retained is shielded by a light shielding plate and then exposed to light. Then, the unshielded portion is eluted with an eluting liquid to obtain a plurality of intermittently arranged oxide layers 22 and metal layers 21.

[0042] S3: Forming an inorganic layer 70 on the plurality of blocking blocks 20 and the substrate 10. Specifically, after forming the blocking blocks 20, the inorganic layer 70 is laid flat on the blocking blocks 20 and the substrate 10. The inorganic layer 70 completely covers the blocking blocks 20 to form a good protective layer, thereby preventing the material in the blocking blocks 20 from dissolving into the RGB developer when forming the color block 40, resulting in burrs or unevenness on the blocking blocks 20, which in turn causes light leakage.

[0043] S4: Color resist blocks 40 are formed in the spaces between the plurality of resist blocks 20. Specifically, after the plurality of resist blocks 20 are spaced apart, color resist blocks 40 are deposited in the spaces. The height of the color resist blocks 40 along the first direction X is greater than that of the resist blocks 20, and the raised portions of the color resist blocks 40 overlap the tops of the resist blocks 20 along both sides, thereby preventing light leakage at the seams between the resist blocks 20 and the color resist blocks 40.

[0044] S5: An insulating layer 30 is formed on the color resist blocks 40 and the inorganic layer 70; the resist blocks 20 include a low-reflective structure layer. Specifically, after the resist blocks 20 and the color resist blocks 40 are formed, the top surface of the display panel is uneven. To reduce the impact on the alignment of the liquid crystal molecules, the insulating layer 30 is formed on the resist blocks 20 and the color resist blocks 40, with the side of the insulating layer 30 facing away from the color resist blocks 40 being flat. The insulating layer 30 also protects the resist blocks 20 and the color resist blocks 40.

[0045] As shown in FIG3 , in some other embodiments of the present application, before forming the color resist blocks 40 in the spaces between the plurality of resist blocks 20, the step includes removing the inorganic layer 70 covering the substrate 10 to expose the substrate 10. Specifically, in order to improve the transmittance of the color resist blocks 40 while protecting the resist blocks 20 from contact with the color resist blocks 40, the inorganic layer 70 covering the spaces between the resist blocks 20 is removed, leaving only the inorganic layer 70 covering the resist blocks 20. This allows the color resist blocks 40 to be directly connected to the substrate 10, thereby improving the transmittance and, in turn, the display quality of the liquid crystal display panel.

[0046] An embodiment of the present application provides a display device, which includes a display panel as provided in any of the above embodiments; or includes a display panel prepared by a display panel preparation method as provided in any of the above embodiments.

[0047] In summary, the present application discloses a display panel and display device comprising a substrate; a plurality of blocking blocks arranged at intervals on the substrate; color blocks located between adjacent blocking blocks; an inorganic layer covering the blocking blocks; and an insulating layer covering the color blocks and the inorganic layer. The blocking blocks include a low-reflective structure layer. The present application utilizes a low-reflective structure layer as the blocking blocks, which can improve the resolution of the blocking blocks, thereby enhancing the display quality of the display panel. Furthermore, the blocking blocks rarely burr during the manufacturing process, resulting in smoother edges.

[0048] The above is a detailed introduction to a display panel and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, comprising: substrate; A plurality of blocking blocks, wherein the plurality of blocking blocks are arranged on the substrate at intervals; A color blocking block, wherein the color blocking block is located between adjacent blocking blocks; an inorganic layer, the inorganic layer covering the blocking block; An insulating layer, the insulating layer covering the color resist block and the inorganic layer; Wherein, the blocking block includes a low-reflective structure layer.

2. The display panel according to claim 1, wherein: The low-reflection structure layer includes an oxide layer; or, The metal layer and the oxide layer are stacked, the oxide layer is located on the substrate, and the metal layer is arranged on a side of the oxide layer away from the substrate.

3. The display panel according to claim 1, wherein: The low-reflection structure layer comprises a first inorganic film layer, an oxide layer, a metal layer, and a second inorganic film layer which are stacked; the first inorganic film layer is located on the substrate, the oxide layer is located on a side of the first inorganic film layer away from the substrate, the metal layer is located on a side of the oxide layer away from the substrate, and the second inorganic film layer is located on a side of the metal layer away from the substrate; The materials of the first inorganic film layer and the second inorganic film layer are the same or different.

4. The display panel according to claim 1, wherein: The low-reflective structure layer comprises a first inorganic film layer, a composite layer, a second inorganic film layer, a metal layer and a third inorganic film layer which are stacked; the first inorganic film layer is located on the substrate, the composite layer is located on a side of the first inorganic film layer away from the substrate, the composite layer comprises an oxide layer and a metal layer stacked on each other, the metal layer is located on a side of the composite layer away from the first inorganic film layer, and the third inorganic film layer is located on a side of the metal layer away from the composite layer; The materials of the first inorganic film layer, the second inorganic film layer and the third inorganic film layer are the same or different.

5. The display panel according to claim 1, wherein: The inorganic layer and the substrate enclose a groove, a partial structure of the color resist block is located in the groove, and the other structure of the color resist block is located on the inorganic layer.

6. The display panel according to claim 1, wherein: The inorganic layer covers the blocking block, and the inorganic layer is disconnected at the blocking block.

7. The display panel according to claim 1, wherein: The inorganic layer covers the blocking block and the substrate, and both side surfaces and the bottom surface of the color blocking block are located on the inorganic layer.

8. The display panel according to claim 1, wherein: Along the first direction, the color block and the blocking block have a partial overlapping area.

9. The display panel according to claim 1, wherein: A connecting block is provided on one side of the insulating layer away from the blocking block.

10. The display panel according to claim 2, 3 or 4, wherein: The metal layer comprises one or more composite structural layers of molybdenum, copper, titanium or aluminum; The material of the inorganic layer includes SiO X and SiN X One or a combination of the two.

11. A display device, wherein: The display device comprises a display panel, and the display panel comprises: substrate; A plurality of blocking blocks, wherein the plurality of blocking blocks are arranged on the substrate at intervals; A color blocking block, wherein the color blocking block is located between adjacent blocking blocks; an inorganic layer, the inorganic layer covering the blocking block; An insulating layer, the insulating layer covering the color resist block and the inorganic layer; Wherein, the blocking block includes a low-reflective structure layer.

12. The display device according to claim 11, wherein: The low-reflection structure layer includes an oxide layer; or, The metal layer and the oxide layer are stacked, the oxide layer is located on the substrate, and the metal layer is arranged on a side of the oxide layer away from the substrate.

13. The display device according to claim 11, wherein: The low-reflection structure layer comprises a first inorganic film layer, an oxide layer, a metal layer, and a second inorganic film layer which are stacked; the first inorganic film layer is located on the substrate, the oxide layer is located on a side of the first inorganic film layer away from the substrate, the metal layer is located on a side of the oxide layer away from the substrate, and the second inorganic film layer is located on a side of the metal layer away from the substrate; The materials of the first inorganic film layer and the second inorganic film layer are the same or different.

14. The display device according to claim 11, wherein: The low-reflective structure layer comprises a first inorganic film layer, a composite layer, a second inorganic film layer, a metal layer and a third inorganic film layer which are stacked; the first inorganic film layer is located on the substrate, the composite layer is located on a side of the first inorganic film layer away from the substrate, the composite layer comprises an oxide layer and a metal layer stacked on each other, the metal layer is located on a side of the composite layer away from the first inorganic film layer, and the third inorganic film layer is located on a side of the metal layer away from the composite layer; The materials of the first inorganic film layer, the second inorganic film layer and the third inorganic film layer are the same or different.

15. The display device according to claim 11, wherein: The inorganic layer and the substrate enclose a groove, a partial structure of the color resist block is located in the groove, and the other structure of the color resist block is located on the inorganic layer.

16. The display device according to claim 11, wherein: The inorganic layer covers the blocking block, and the inorganic layer is disconnected at the blocking block.

17. The display device according to claim 11, wherein: The inorganic layer covers the blocking block and the substrate, and both side surfaces and the bottom surface of the color blocking block are located on the inorganic layer.

18. The display device according to claim 11, wherein: Along the first direction, the color block and the blocking block have a partial overlapping area.

19. The display device according to claim 1, wherein: A connecting block is provided on one side of the insulating layer away from the blocking block.

20. The display device according to claim 12, 13 or 14, wherein: The metal layer comprises one or more composite structural layers of molybdenum, copper, titanium or aluminum; The material of the inorganic layer includes SiO X and SiN X One or a combination of the two.

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