An array substrate, a curved display panel, a manufacturing method thereof, and a display device

Abstract

The present invention provides an array substrate, a curved display panel, a manufacturing method thereof, and a display device. The array substrate includes: a base substrate, a grating structure, a circuit structure, and a color film block; the grating structure is located on the base substrate, the grating structure includes a plurality of grating patterns arranged at intervals, and a spacing area is formed between adjacent grating patterns; the circuit structure is located on the side of the grating structure facing away from the base substrate, and the orthographic projection of the circuit structure on the base substrate is located inside the orthographic projection of the grating pattern of the grating structure on the base substrate; the color film block is located on the side of the grating structure facing away from the base substrate, and the orthographic projection of the color film block on the base substrate overlaps with the orthographic projection of the spacing area of ​​the grating structure on the base substrate. In the present invention, by setting the grating structure and setting the circuit structure on the grating structure, the circuit structure is protected to prevent damage to the circuit structure during the curved bending operation of the array substrate.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of display devices, and in particular to an array substrate, a curved display panel, a manufacturing method thereof, and a display device. Background Art

[0002] In some display devices, the circuit structure on the array substrate may be damaged during the bending process of the curved surface process, and light leakage may also occur in the pixel area. Summary of the invention

[0003] The embodiments of the present invention provide an array substrate, a curved display panel, a manufacturing method thereof, and a display device to solve the existing problem of damaging the circuit structure on the array substrate and causing light leakage in the pixel area.

[0004] In order to solve the above-mentioned technical problems, the present invention is achieved as follows:

[0005] In a first aspect, an embodiment of the present invention provides an array substrate, including:

[0006] Substrate substrate, grating structure, circuit structure and color film blocks;

[0007] The grating structure is located on the substrate, and the grating structure includes a plurality of grating patterns arranged at intervals, and a spacing area is formed between adjacent grating patterns;

[0008] The circuit structure is located on a side of the grating structure facing away from the substrate, and the orthographic projection of the circuit structure on the substrate is located inside the orthographic projection of the grating pattern of the grating structure on the substrate;

[0009] The color filter block is located on a side of the grating structure facing away from the base substrate, and the orthographic projection of the color filter block on the base substrate overlaps with the orthographic projection of the spacing area of ​​the grating structure on the base substrate.

[0010] Optionally, the grating structure includes a grating layer and a grating flat layer;

[0011] Wherein, the grating layer includes the plurality of grating patterns;

[0012] The grating flat layer is located at a side of the grating layer away from the substrate, and the grating flat layer covers the grating pattern and the spacing area.

[0013] Optionally, the plurality of grating patterns are arranged along a first direction, the intervals between adjacent grating patterns are equal, and the widths of the grating patterns along the first direction are equal.

[0014] Optionally, the array substrate further includes:

[0015] A pixel electrode layer and an alignment layer, wherein the pixel electrode layer is located between the alignment layer and the base substrate, and the pixel electrode layer is located on a side of the color filter block away from the base substrate.

[0016] In a second aspect, an embodiment of the present invention provides a curved display panel, the curved display panel comprising the array substrate described in any one of the first aspects, the curved display panel further comprising an opposite substrate, the array substrate and the opposite substrate being arranged opposite to each other; the curved display panel is curved toward a side where the opposite substrate is located;

[0017] The opposite substrate includes a black matrix; the orthographic projection of the black matrix on the base substrate at least partially overlaps with the orthographic projection of the circuit structure on the base substrate.

[0018] Optionally, the orthographic projection of the circuit structure on the base substrate is inside the orthographic projection of the black matrix on the base substrate, and the width of the orthographic projection of the black matrix on the base substrate is greater than the orthographic projection of the circuit structure on the base substrate.

[0019] In a third aspect, an embodiment of the present invention provides a display device, comprising the display panel described in any one of the second aspects.

[0020] In a fourth aspect, an embodiment of the present invention provides a method for manufacturing an array substrate, which is used to manufacture the array substrate as described in any one of the first aspects, and the manufacturing method includes:

[0021] Providing a substrate;

[0022] A grating structure is fabricated on the substrate, wherein the grating structure comprises a plurality of grating patterns arranged at intervals, and a spacing region is formed between adjacent grating patterns;

[0023] Manufacturing a circuit structure on a side of the grating structure facing away from the substrate, wherein the orthographic projection of the circuit structure on the substrate is located inside the orthographic projection of the grating pattern of the grating structure on the substrate;

[0024] A color filter block is manufactured on a side of the grating structure facing away from the base substrate, and an orthographic projection of the color filter block on the base substrate overlaps with an orthographic projection of a spacing region of the grating structure on the base substrate.

[0025] Optionally, in the case where the grating structure includes a grating layer and a grating flat layer, the step of manufacturing the grating structure specifically includes:

[0026] Manufacturing a first film on the substrate, and patterning the first film to obtain a grating layer, wherein the grating layer includes the plurality of grating patterns;

[0027] A grating flat layer is made on another base substrate, the grating flat layer is peeled off, and the grating flat layer is pasted on the grating layer while the base substrate on which the grating layer is formed is stretched along a first direction, and the grating flat layer covers the grating pattern and the spacing area.

[0028] In a fifth aspect, an embodiment of the present invention provides a method for manufacturing a curved display panel, which is used to manufacture the curved display panel as described in any one of the second aspects, and the manufacturing method includes:

[0029] Provide an array substrate as described in any one of the first aspects;

[0030] providing a pair of opposing substrates;

[0031] The array substrate and the counter substrate are subjected to a cell-aligning process to form a display panel; wherein the counter substrate comprises a black matrix; the orthographic projection of the black matrix on the base substrate at least partially overlaps with the orthographic projection of the circuit structure on the base substrate;

[0032] The display panel is bent to form a curved display panel that is bent toward the opposite substrate.

[0033] In the present invention, a grating structure is arranged on the array substrate, the grating structure is located on the base substrate, the grating structure includes a plurality of grating patterns arranged at intervals, and a spacing area is formed between adjacent grating patterns; the circuit structure is located on the side of the grating structure facing away from the base substrate, and the orthographic projection of the circuit structure on the base substrate is located inside the orthographic projection of the grating pattern of the grating structure on the base substrate; the color filter block is located on the side of the grating structure facing away from the base substrate, and the orthographic projection of the color filter block on the base substrate overlaps with the orthographic projection of the spacing area of ​​the grating structure on the base substrate. By arranging the circuit structure on the grating structure, when the array substrate is subjected to a surface bending operation, the grating pattern can bear the original force on the circuit structure, so that the force on the circuit structure is reduced, thereby protecting the circuit structure and preventing the circuit structure from being damaged when the array substrate is subjected to a surface bending operation, thereby solving the existing problem of damaging the circuit structure on the array substrate and causing light leakage in the pixel area. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0035] Figure 1 is a structural schematic diagram of an array substrate provided by an embodiment of the present invention;

[0036] Figure 2 is a schematic structural diagram of another array substrate provided by an embodiment of the present invention;

[0037] Figure 3 is a structural schematic diagram of a curved display panel provided by an embodiment of the present invention;

[0038] Figure 4 is a schematic structural diagram of another curved display panel provided by an embodiment of the present invention;

[0039] Figure 5 is a structural schematic diagram of another curved display panel provided by an embodiment of the present invention;

[0040] Figure 6 is a flow chart of a method for manufacturing an array substrate provided by an embodiment of the present invention;

[0041] Figure 7 is a structural schematic diagram of a grating pattern of an array substrate provided by an embodiment of the present invention;

[0042] Figure 8 It is a structural schematic diagram of a manufacturing process of a grating structure of an array substrate provided by an embodiment of the present invention;

[0043] Fig. 9 is a structural schematic diagram of a grating structure of an array substrate provided by an embodiment of the present invention;

[0044] Fig.10 It is a flow chart of a method for manufacturing a curved display panel provided by an embodiment of the present invention.

[0045] Throughout the drawings and the detailed description, common reference numerals are used to indicate the same or similar components. The present application will become more apparent from the following detailed description in conjunction with the drawings. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Please refer to Figure 1 The embodiment of the present invention provides an array substrate 01, including:

[0048] Base substrate 1, grating structure 2, circuit structure 3 and color filter block 4;

[0049] The grating structure 2 is located on the substrate 1, and the grating structure 2 includes a plurality of grating patterns 21 arranged at intervals, and a spacing area is formed between adjacent grating patterns;

[0050] The circuit structure 3 is located on the side of the grating structure 2 facing away from the substrate 1, and the orthographic projection of the circuit structure 3 on the substrate 1 is located inside the orthographic projection of the grating pattern of the grating structure 2 on the substrate 1;

[0051] The color filter block 4 is located on the side of the grating structure 2 facing away from the base substrate 1 , and the orthographic projection of the color filter block 4 on the base substrate 1 overlaps with the orthographic projection of the spacing area of ​​the grating structure 2 on the base substrate 1 .

[0052] Please refer to Figure 1 , in the embodiment of the present invention, optionally, the grating structure 2 includes a grating layer and a grating flat layer 22;

[0053] Wherein, the grating layer includes a plurality of grating patterns 21;

[0054] The grating flat layer 22 is located on a side of the grating layer away from the substrate 1 , and the grating flat layer 22 covers the grating pattern 21 and the spacing area.

[0055] In the embodiment of the present invention, by setting a plurality of grating patterns 21 on the grating structure 2 and setting a circuit structure 3 on the plurality of grating patterns 21, when the array substrate is subjected to a surface bending operation, the grating patterns can bear the force originally exerted on the circuit structure, so that the force exerted on the circuit structure is reduced, thereby protecting the circuit structure and preventing damage to the circuit structure when the array substrate is subjected to a surface bending operation. In addition, a grating flattening layer 22 is set on the grating patterns 21 and the spacing area, thereby forming a flat area, which is convenient for the subsequent setting of the circuit structure 3 and the color filter block 4.

[0056] In the embodiment of the present invention, optionally, a plurality of grating patterns 21 are arranged along the first direction, the intervals between adjacent grating patterns 21 are equal, and the widths of the grating patterns 21 along the first direction are equal.

[0057] In the embodiment of the present invention, arranging the plurality of grating patterns 21 with equal spacing and width is beneficial to improving the uniformity of the overall layout of the array substrate, thereby improving the display quality of the display panel formed using the array substrate.

[0058] In the embodiment of the present invention, optionally, the circuit structure 3 includes: a thin film transistor composed of a gate, a gate insulating layer, an active layer, a source electrode and a drain electrode, and the array substrate may further include a passivation layer.

[0059] Please refer to Figure 2 In the embodiment of the present invention, optionally, the array substrate further includes:

[0060] The pixel electrode layer 5 and the alignment layer 6 , wherein the pixel electrode layer 5 is located between the alignment layer 6 and the base substrate 1 , and the pixel electrode layer is located on a side of the color filter block 4 away from the base substrate 1 .

[0061] The array substrate provided in the above embodiment can be applied to a display panel adopting a TN mode or an ADS mode. The alignment layer 6 is used to guide the arrangement direction of the liquid crystal molecules and improve the optical performance of the liquid crystal display by controlling the arrangement of the liquid crystal molecules.

[0062] In an embodiment of the present invention, a grating structure is arranged on the array substrate, the grating structure is located on the base substrate, the grating structure includes a plurality of grating patterns arranged at intervals, and a spacing area is formed between adjacent grating patterns; the circuit structure is located on the side of the grating structure facing away from the base substrate, and the orthographic projection of the circuit structure on the base substrate is located inside the orthographic projection of the grating pattern of the grating structure on the base substrate; the color filter block is located on the side of the grating structure facing away from the base substrate, and the orthographic projection of the color filter block on the base substrate overlaps with the orthographic projection of the spacing area of ​​the grating structure on the base substrate. By arranging the circuit structure on the grating structure, when the array substrate is subjected to a curved surface bending operation, the grating pattern can bear the original force on the circuit structure, so that the force on the circuit structure is reduced, thereby protecting the circuit structure and preventing the circuit structure from being damaged when the array substrate is subjected to a curved surface bending operation, thereby solving the existing problem of damaging the circuit structure on the array substrate and causing light leakage in the pixel area.

[0063] When the above-mentioned array substrate is applied to a curved display panel, as the bending angle of the array substrate increases, the raised color film block 4 in the array substrate 00 will be gradually flattened, and the position of the circuit structure 3 remains unchanged, thereby reducing the misalignment of the opposing substrate 03 and the array substrate 00 in the curved display panel during the stretching process and avoiding light leakage of the curved display panel.

[0064] Please refer to Figure 3 and Figure 4 The embodiment of the present invention provides a curved display panel 02, wherein the curved display panel comprises: Figure 1 and Figure 2 The array substrate 00 described in the embodiment, the curved display panel further comprises an opposite substrate 03, the array substrate 00 and the opposite substrate 03 are arranged opposite to each other; the curved display panel is bent toward the side where the opposite substrate 03 is located;

[0065] The opposite substrate 03 includes a black matrix 7 ; the orthographic projection of the black matrix 7 on the base substrate 1 at least partially overlaps with the orthographic projection of the circuit structure 3 on the base substrate 1 .

[0066] In the embodiment of the present invention, the array substrate 00 and the opposing substrate 03 are both flexible and bendable. When the curved display panel 02 is bent toward the opposing substrate 03, the longitudinal lines on the array substrate 00 and the opposing substrate 03 are transformed into arc curves, and the longitudinal lines of the opposing substrate 03 are shortened, while the longitudinal lines of the array substrate 00 are elongated. As the bending angle increases, the raised color film blocks 4 in the array substrate 00 are gradually flattened, while the position of the circuit structure 3 remains unchanged, thereby reducing the misalignment of the opposing substrate 03 and the array substrate 00 during the stretching process. At the same time, the grating structure 2 in the array substrate 00 can also protect the circuit structure 3 to prevent damage to the circuit structure 3 during the bending process. Moreover, since the orthographic projection of the black matrix 7 on the base substrate 1 at least partially overlaps with the orthographic projection of the circuit structure 3 on the base substrate 1, light leakage caused by the misalignment of the black matrix 7 during the bending process of the curved display panel 02 is also avoided. Figure 5 .

[0067] In an embodiment of the present invention, optionally, the orthographic projection of the circuit structure 3 on the base substrate 1 is inside the orthographic projection of the black matrix 7 on the base substrate 1, and the width of the orthographic projection of the black matrix 7 on the base substrate 1 along the first direction is greater than the orthographic projection of the circuit structure 3 on the base substrate 1.

[0068] In the embodiment of the present invention, the orthographic projection of the circuit structure 3 on the base substrate 1 is inside the orthographic projection of the black matrix 7 on the base substrate 1, and the width of the orthographic projection of the black matrix 7 on the base substrate 1 is greater than the orthographic projection of the circuit structure 3 on the base substrate 1, indicating that the orthographic projection of the black matrix 7 on the base substrate 1 completely covers the orthographic projection of the circuit structure 3 on the base substrate 1, further avoiding light leakage caused by the misalignment of the black matrix 7 during the bending process of the curved display.

[0069] An embodiment of the present invention further provides a display device, comprising Figure 3-Figure 5 The display panel shown in .

[0070] Please refer to Figure 1and Figure 6 The embodiment of the present invention provides a method for manufacturing an array substrate, which is used to manufacture Figure 1 The array substrate described in the above, the manufacturing method comprises:

[0071] Step 61: Provide a substrate;

[0072] Step 62: manufacturing a grating structure on the substrate 1, wherein the grating structure 2 includes a plurality of grating patterns arranged at intervals, and a spacing region is formed between adjacent grating patterns;

[0073] Step 63: manufacturing a circuit structure on the side of the grating structure 2 facing away from the base substrate 1, wherein the orthographic projection of the circuit structure 3 on the base substrate 1 is located inside the orthographic projection of the grating pattern of the grating structure 2 on the base substrate 1;

[0074] Step 64 : a color filter block is produced on the side of the grating structure 2 facing away from the base substrate 1 , and the orthographic projection of the color filter block 4 on the base substrate 1 overlaps with the orthographic projection of the spacing area of ​​the grating structure 2 on the base substrate 1 .

[0075] In the embodiment of the present invention, optionally, in the case where the grating structure 2 includes a grating layer and a grating flat layer, the step of manufacturing the grating structure 2 specifically includes:

[0076] A first film is manufactured on a base substrate 1, and the first film is patterned to obtain a grating layer, wherein the grating layer includes a plurality of grating patterns 21;

[0077] A grating flat layer is made on another base substrate, the grating flat layer is peeled off, and the grating flat layer is pasted on the grating layer while the base substrate 1 formed with the grating layer is stretched along a first direction, and the grating flat layer covers the grating pattern 21 and the spacing area.

[0078] In the embodiment of the present invention, Figure 7 As shown, a first film is coated on the base substrate 1, wherein the first film may be a polyimide film, and then the first film is patterned by an etching process to obtain a grating layer, wherein the grating layer includes a plurality of grating patterns 21, and the plurality of grating patterns 21 are arranged along a first direction, the spacing between adjacent grating patterns 21 is equal, and the width of each grating pattern 21 along the first direction is equal.

[0079] Then, a grating flat layer is formed on another substrate, and the grating flat layer is peeled off. Figure 8As shown, the grating flat layer can be a polyimide film; and when the base substrate 1 formed with the grating layer is stretched along the first direction, the grating flat layer is pasted on the grating layer, and the grating flat layer covers the grating pattern 21 and the spacing area, as shown in FIG. Fig. 9 shown.

[0080] The circuit structure 3 includes: a gate electrode, a gate insulating layer, an active layer, a thin film transistor composed of a source electrode and a drain electrode, and a passivation layer.

[0081] Please refer to Figure 2 In an embodiment of the present invention, optionally, it also includes: making a pixel electrode layer 5 and an alignment layer 6 on the side of the color filter block 4 away from the base substrate 1, the pixel electrode layer 5 is located between the alignment layer 6 and the base substrate 1, and the pixel electrode layer is located on the side of the color filter block 4 away from the base substrate 1.

[0082] In an embodiment of the present invention, a grating structure is arranged on the array substrate, the grating structure is located on the base substrate, the grating structure includes a plurality of grating patterns arranged at intervals, and a spacing area is formed between adjacent grating patterns; the circuit structure is located on the side of the grating structure facing away from the base substrate, and the orthographic projection of the circuit structure on the base substrate is located inside the orthographic projection of the grating pattern of the grating structure on the base substrate; the color filter block is located on the side of the grating structure facing away from the base substrate, and the orthographic projection of the color filter block on the base substrate overlaps with the orthographic projection of the spacing area of ​​the grating structure on the base substrate. By arranging the circuit structure on the grating structure, the circuit structure is protected to prevent damage to the circuit structure during a curved surface bending operation on the array substrate, thereby solving the existing problem of damage to the circuit structure on the array substrate and light leakage in the pixel area.

[0083] Please refer to Fig.10 The embodiment of the present invention provides a method for manufacturing a curved display panel, which is used to manufacture Figure 3-5 The curved display panel described in the invention, wherein the manufacturing method comprises:

[0084] Step 101: Provide a Figure 1 The array substrate 00 described in;

[0085] Step 102: providing a pair of opposing substrates 03;

[0086] Step 103: performing a cell-aligning process on the array substrate 00 and the counter substrate 03 to form a display panel; wherein the counter substrate comprises a black matrix; the orthographic projection of the black matrix 7 on the base substrate 1 at least partially overlaps with the orthographic projection of the circuit structure 3 on the base substrate 1;

[0087] Step 104: performing a bending operation on the display panel to form the display panel into a curved display panel 02 that is bent toward the opposite substrate.

[0088] In the embodiment of the present invention, a counter substrate 03 is provided, and the counter substrate 03 includes a black matrix 7, a common electrode layer, a counter substrate alignment layer, and a liquid crystal layer;

[0089] Then, the array substrate 00 and the counter substrate 03 are subjected to a cell-aligning process, after which the external force applied during the cell-aligning process is removed, and the display panel is bent to form a curved display panel 02 that is bent toward the counter substrate.

[0090] In the embodiment of the present invention, the array substrate 00 and the opposing substrate 03 are both flexible and bendable. When the curved display panel 02 is bent toward the opposing substrate 03, the longitudinal lines on the array substrate 00 and the opposing substrate 03 are transformed into arc curves, and the longitudinal lines of the opposing substrate 03 are shortened, while the longitudinal lines of the array substrate 00 are elongated. As the bending angle increases, the raised color film blocks 4 in the array substrate 00 are gradually flattened, while the position of the circuit structure 3 remains unchanged, thereby reducing the misalignment of the opposing substrate 03 and the array substrate 00 during the stretching process. At the same time, the grating structure 2 in the array substrate 00 can also protect the circuit structure 3 to prevent damage to the circuit structure 3 during the bending process. Moreover, since the orthographic projection of the black matrix 7 on the base substrate 1 at least partially overlaps with the orthographic projection of the circuit structure 3 on the base substrate 1, light leakage caused by the misalignment of the black matrix 7 during the bending process of the curved display panel 02 is also avoided. Figure 5 .

[0091] In an embodiment of the present invention, optionally, the orthographic projection of the circuit structure 3 on the base substrate 1 is inside the orthographic projection of the black matrix 7 on the base substrate 1 , and the width of the orthographic projection of the black matrix 7 on the base substrate 1 is greater than the orthographic projection of the circuit structure 3 on the base substrate 1 .

[0092] In the embodiment of the present invention, the orthographic projection of the circuit structure 3 on the base substrate 1 is inside the orthographic projection of the black matrix 7 on the base substrate 1, and the width of the orthographic projection of the black matrix 7 on the base substrate 1 is greater than the orthographic projection of the circuit structure 3 on the base substrate 1, indicating that the orthographic projection of the black matrix 7 on the base substrate 1 completely covers the orthographic projection of the circuit structure 3 on the base substrate 1, further avoiding light leakage caused by the misalignment of the black matrix 7 during the bending process of the curved display.

[0093] Unless otherwise specified, spatial descriptions such as "above", "below", "upward", "left", "right", "downward", "top", "bottom", "vertical", "horizontal", "side", "above", "below", "upper", "above", "below" are relative to the orientation shown in the drawings. It should be understood that the spatial descriptions used herein are for illustrative purposes only, and actual embodiments of the structures described herein may be spatially arranged in any orientation or manner, with the limitation that the advantages of the embodiments of the present application are not deviated by such arrangements.

[0094] As used herein, the term "vertical" is used to refer to an upward and downward direction, while the term "horizontal" refers to a direction transverse to the vertical direction.

[0095] As used herein, the terms "approximately," "substantially," "substantially," and "about" are used to describe and explain small variations. When used in conjunction with an event or circumstance, the terms may refer to instances where the event or circumstance occurred precisely as well as instances where the event or circumstance occurred very approximately. For example, when used in conjunction with a numerical value, the terms may refer to a range of variation of less than or equal to ±10% of the numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%. For example, if a first numerical value is within a range of variation of less than or equal to ±10% of a second numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%, then the first numerical value may be considered to be "substantially" the same as or equal to the second numerical value. For example, "substantially" vertical may refer to an angular variation range of less than or equal to ±10° relative to 90°, such as less than or equal to ±5°, less than or equal to ±4°, less than or equal to ±3°, less than or equal to ±2°, less than or equal to ±1°, less than or equal to ±0.5°, less than or equal to ±0.1°, or less than or equal to ±0.05°.

[0096] Two surfaces are considered coplanar or substantially coplanar if the displacement between them is no more than 5 μm, no more than 2 μm, no more than 1 μm, or no more than 0.5 μm. A surface is considered substantially flat if the displacement between the highest point and the lowest point of the surface is no more than 5 μm, no more than 2 μm, no more than 1 μm, or no more than 0.5 μm.

[0097] As used herein, the singular terms "a," "an," and "the" may include plural referents unless the context clearly dictates otherwise.

[0098] As used herein, the terms "conductive," "electrically conductive," and "conductivity" refer to the ability to carry an electric current. Conductive materials generally refer to those materials that present little or no resistance to the flow of electric current. One measure of conductivity is Siemens per meter (S / m). Typically, a conductive material is a material with a conductivity greater than about 104 S / m (such as at least 105 S / m or at least 106 S / m). The conductivity of a material can sometimes vary with temperature. Unless otherwise specified, the conductivity of a material is measured at room temperature.

[0099] In addition, amounts, ratios and other numerical values ​​are sometimes presented herein in a range format. It should be understood that such a range format is used for convenience and brevity, and should be flexibly interpreted to include not only the values ​​explicitly specified as the limits of the range, but also all individual values ​​or sub-ranges encompassed within that range, as if each value and sub-range were explicitly specified.

[0100] Although the present application has been described and illustrated with reference to the specific embodiments of the present application, these descriptions and illustrations are not restrictive. It should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the true spirit and scope of the present application as defined by the appended claims. The illustrations may not necessarily be drawn to scale. Due to manufacturing processes and tolerances, there may be differences between the process reproduction in the present application and the actual equipment. There may be other embodiments of the present application that are not specifically described. This specification and drawings should be regarded as illustrative rather than restrictive. Modifications may be made to make specific situations, materials, material compositions, methods or processes suitable for the goals, spirit and scope of the present application. All such modifications are intended to be within the scope of the appended claims. Although the methods of the application herein have been described with reference to specific operations performed in a specific order, it should be understood that these operations may be combined, subdivided or reordered to form equivalent methods without departing from the teachings of the present application. Accordingly, unless specifically indicated herein, the order and grouping of operations are not limitations of the present application.

Claims

1. A curved display panel, characterized in that: The curved display panel includes an array substrate, and the curved display panel also includes an opposite substrate, wherein the array substrate and the opposite substrate are arranged opposite to each other; The array substrate comprises: Substrate substrate, grating structure, circuit structure and color film blocks; The grating structure is located on the substrate, and the grating structure includes a plurality of grating patterns arranged at intervals, and a spacing area is formed between adjacent grating patterns; The circuit structure is located on a side of the grating structure facing away from the substrate, and the orthographic projection of the circuit structure on the substrate is located inside the orthographic projection of the grating pattern of the grating structure on the substrate; The color filter block is located on a side of the grating structure facing away from the base substrate, and the orthographic projection of the color filter block on the base substrate overlaps with the orthographic projection of the spacing area of ​​the grating structure on the base substrate; The grating structure includes a grating layer and a grating flat layer; wherein the grating layer includes the plurality of grating patterns; The grating flat layer is located at a side of the grating layer away from the substrate, and the grating flat layer covers the grating pattern and the spacing area; The steps of making the grating structure specifically include: A first film is manufactured on a substrate, and the first film is patterned to obtain a grating layer, wherein the first film is a polyimide film, and the first film is patterned to obtain a grating layer; Making a grating flat layer on another base substrate, peeling off the grating flat layer, and pasting the grating flat layer on the grating layer while stretching the base substrate on which the grating layer is formed along a first direction; The curved display panel is bent toward the side where the opposite substrate is located, and the opposite substrate includes a black matrix; the orthographic projection of the circuit structure on the base substrate is inside the orthographic projection of the black matrix on the base substrate, and the width of the orthographic projection of the black matrix on the base substrate is greater than the orthographic projection of the circuit structure on the base substrate.

2. The curved display panel according to claim 1, characterized in that: The plurality of grating patterns are arranged along a first direction, the intervals between adjacent grating patterns are equal, and the widths of the grating patterns along the first direction are equal.

3. The curved display panel according to claim 1, characterized in that: The array substrate further includes: A pixel electrode layer and an alignment layer, wherein the pixel electrode layer is located between the alignment layer and the base substrate, and the pixel electrode layer is located on a side of the color filter block away from the base substrate.

4. A display device, characterized in that: A curved display panel comprising any one of claims 1 to 3.

5. A method for manufacturing a curved display panel, characterized in that: Used to manufacture an array substrate according to any one of claims 1 to 3, the manufacturing method comprising: Providing a substrate; A grating structure is fabricated on the substrate, wherein the grating structure comprises a plurality of grating patterns arranged at intervals, and a spacing region is formed between adjacent grating patterns; the grating structure comprises a grating layer and a grating flat layer; wherein the grating layer comprises the plurality of grating patterns; and the grating flat layer is located on a side of the grating layer away from the substrate; Manufacturing a circuit structure on a side of the grating structure facing away from the substrate, wherein the orthographic projection of the circuit structure on the substrate is located inside the orthographic projection of the grating pattern of the grating structure on the substrate; Making a color filter block on the side of the grating structure facing away from the base substrate, wherein the orthographic projection of the color filter block on the base substrate overlaps with the orthographic projection of the spacing area of ​​the grating structure on the base substrate; The steps of making the grating structure specifically include: A first film is manufactured on a substrate, and the first film is patterned to obtain a grating layer, wherein the first film is a polyimide film, and the first film is patterned to obtain a grating layer; A grating flat layer is made on another base substrate, the grating flat layer is peeled off, and the grating flat layer is pasted on the grating layer while the base substrate on which the grating layer is formed is stretched along a first direction, and the grating flat layer covers the grating pattern and the spacing area.

6. A method for manufacturing a curved display panel, characterized in that: Used to manufacture a curved display panel according to any one of claims 1 to 3, the manufacturing method comprising: Provide an array substrate as claimed in any one of claims 1 to 3, providing a pair of opposing substrates; The array substrate and the counter substrate are subjected to a cell-aligning process to form a display panel; wherein the counter substrate includes a black matrix; the orthographic projection of the circuit structure on the base substrate is inside the orthographic projection of the black matrix on the base substrate, and the orthographic projection of the black matrix on the base substrate has a width greater than the orthographic projection of the circuit structure on the base substrate; The display panel is bent to form a curved display panel that is bent toward the opposite substrate.

Images