Display panel, preparation method thereof and display device

Abstract

The application discloses a display panel, a preparation method thereof and a display device. The display panel comprises a display area. The display panel further comprises a substrate, a touch structure located on one side of the substrate, the touch structure being located at least in the display area, a color resistance structure located on a side of the touch structure away from the substrate, the color resistance structure being located at least in the display area and being arranged in contact with the touch structure. The technical scheme provided by the application simplifies the structure of the display panel, simplifies the preparation process, reduces the manufacturing cost, and improves the lightness and thinness of the display panel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel, a preparation method thereof and a display device. BACKGROUND

[0002] With the increasing requirements of display technology, the structure of the display panel is more and more complex, which makes the process of preparing the display panel more and more complex, and further leads to high cost of preparing the display panel and is not conducive to the light and thin design of the display panel. SUMMARY

[0003] The present application provides a display panel, a preparation method thereof and a display device to simplify the structure of the display panel, simplify the preparation process, reduce the manufacturing cost, and improve the light and thin design of the display panel.

[0004] In a first aspect, an embodiment of the present application provides a display panel, comprising a display area.

[0005] The display panel further comprises:

[0006] a substrate;

[0007] a touch structure located on one side of the substrate, the touch structure being located at least in the display area;

[0008] a color resistance structure located on a side of the touch structure away from the substrate, the color resistance structure being located at least in the display area and being in contact with the touch structure.

[0009] In a second aspect, an embodiment of the present application provides a preparation method of a display panel, the display panel comprising a display area; the preparation method of the display panel comprising:

[0010] providing a substrate;

[0011] preparing a touch structure on one side of the substrate, the touch structure being located at least in the display area;

[0012] preparing a color resistance structure on a side of the touch structure away from the substrate, the color resistance structure being located at least in the display area and being in contact with the touch structure.

[0013] In a third aspect, an embodiment of the present application provides a display device comprising the display panel as described in the first aspect.

[0014] The scheme provided by the present application comprises a substrate, a touch structure on one side of the substrate, and the touch structure is located in the display area, so that the touch structure can generate a touch sensing signal based on external touch and transmit the signal to the control chip, thereby realizing the touch effect of the display panel. The display panel further comprises a color resistance structure on the side of the touch structure away from the substrate, and the color resistance structure is located in the display area and is in contact with the touch structure. Compared with the prior art, no other film layer structure is required between the touch structure and the color resistance structure, which can reduce the number of film layers of the display panel, facilitate the thinning of the display panel, and reduce the preparation process and manufacturing cost during the preparation of the display panel.

[0015] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are some specific embodiments of the present application. For those skilled in the art, based on the basic concepts of device structure, driving method and manufacturing method disclosed and suggested by various embodiments of the present application, other structures and drawings can be expanded and extended, and it is needless to say that these should be within the scope of the claims of the present application.

[0017] Figure 1 A structure schematic diagram of a display panel provided by an embodiment of the present application is provided.

[0018] Figure 2 A cross-sectional structure schematic diagram of a display panel provided by an embodiment of the present application is provided.

[0019] Figure 3 A cross-sectional structure schematic diagram of a display panel in the prior art provided by an embodiment of the present application is provided.

[0020] Figure 4 A cross-sectional structure schematic diagram of another display panel provided by an embodiment of the present application is provided.

[0021] Figure 5 A cross-sectional structure schematic diagram of another display panel provided by an embodiment of the present application is provided.

[0022] Figure 6 A cross-sectional structure schematic diagram of another display panel provided by an embodiment of the present application is provided.

[0023] Figure 7A cross-sectional structure schematic diagram of a display panel provided by an embodiment of the present application is shown in FIG. 1.

[0024] Figure 8 A cross-sectional structure schematic diagram of a display panel provided by an embodiment of the present application is shown in FIG. 1.

[0025] Figure 9 A cross-sectional structure schematic diagram of a display panel provided by an embodiment of the present application is shown in FIG. 1.

[0026] Figure 10 A cross-sectional structure schematic diagram of a display panel provided by an embodiment of the present application is shown in FIG. 1.

[0027] Figure 11 A flow chart of a display panel manufacturing method provided by an embodiment of the present application is shown in FIG. 2.

[0028] Figure 12 A flow chart of a display panel manufacturing method provided by an embodiment of the present application is shown in FIG. 2.

[0029] Figure 13 A flow chart of a display panel manufacturing method provided by an embodiment of the present application is shown in FIG. 2.

[0030] Figure 14 A flow chart of a display panel manufacturing method provided by an embodiment of the present application is shown in FIG. 2.

[0031] Figure 15 A structure schematic diagram of a display device provided by an embodiment of the present application is shown in FIG. 3. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the basic concepts disclosed and suggested in the embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0033] Figure 1 A structure schematic diagram of a display panel provided by an embodiment of the present application is shown in FIG. 3, Figure 2 A cross-sectional structure schematic diagram of a display panel provided by an embodiment of the present application is shown in FIG. 1, Figure 1 and Figure 2 As shown in FIG. 1, the display panel 100 includes a display area AA; the display panel 100 further includes a substrate 10, a touch structure 20 located on one side of the substrate 10, the touch structure 20 being located at least in the display area AA; a color resistance structure 30 located on a side of the touch structure 20 away from the substrate 10, the color resistance structure 30 being located at least in the display area AA and being in contact with the touch structure 20.

[0034] The substrate 10 is used to support and protect the film layers thereon, and can be a rigid substrate, for example, the material of the substrate 10 is glass, or a flexible substrate, for example, the material of the substrate 10 can include one or more combinations of polyether sulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate and cellulose acetate propionate polymer resins. Here, the material of the substrate 10 is not limited.

[0035] The touch structure 20 is used to realize the touch effect of the display panel, and can generally include a first control metal layer 21, a second touch metal layer 22 and an insulating layer 23 between the first touch metal layer 21 and the second touch metal layer 22, but is not limited thereto, Figure 2 which is only illustrative. It can be understood that the first touch metal layer 21 and the second touch metal layer 22 can include touch electrodes and touch traces, the touch electrodes are used to receive touch driving signals and generate touch sensing signals based on external touch, and the touch traces are used to transmit the touch driving signals and the touch sensing signals to a touch chip, so that the touch chip can know the touch position and / or the touch pressure, thereby realizing the touch function of the display panel 100.

[0036] It can be understood that, Figure 3 The cross-sectional structure of the display panel in the prior art is provided for the embodiments of the present application, and reference is made to Figure 3 As shown, the display panel 100' includes a substrate 10', a touch structure 20', a planarization layer 40' and a color resistance structure 30', wherein the color resistance structure 30' includes light shielding structures and light filtering structures. The planarization layer 40' is generally an inorganic material, including but not limited to silicon nitride, and covers the touch structure 20' to compensate for the height difference caused by the different color light filtering structures in the color resistance structure 30', thereby improving the flatness. However, this will increase the thickness of the display panel, and the more the number of film layers, the more complex the preparation process, which is not conducive to reducing the manufacturing cost.

[0037] Based on this, reference is continued to Figure 2 The color resistance structure 30 is directly arranged on the side of the touch structure 20 away from the substrate 10, that is, the color resistance structure 30 is arranged in contact with the touch structure 20, and no other film layer structure is arranged between the color resistance structure 30 and the touch structure 20, thereby reducing the number of film layers of the display panel 100, facilitating the thinning of the display panel 100, and at the same time, the preparation process can be simplified and the manufacturing cost can be reduced when the display panel is prepared.

[0038] It should be noted that the color resistance structure 30 can play a filtering role, and the color resistance structure 30 can filter one or more colors of light at the same time, and the embodiment of the present application does not make specific limitation thereon, and can be set according to actual needs.

[0039] In the embodiment of the present application, by setting the display panel to include the substrate, the touch structure located on one side of the substrate, and the touch structure located at least in the display area, the touch structure can generate a touch sensing signal based on external touch and transmit it to the control chip, thereby realizing the touch effect of the display panel. The display panel further includes a color resistance structure located on the side of the touch structure away from the substrate, and the color resistance structure is located at least in the display area and is in contact with the touch structure. Compared with the prior art, no other film layer structure is required between the touch structure and the color resistance structure, which can reduce the number of film layers of the display panel, facilitate the thinning of the display panel, and at the same time, the preparation process can be simplified and the manufacturing cost can be reduced.

[0040] Optionally, Figure 4 Another cross-sectional structure diagram of a display panel provided by the embodiment of the present application is shown in Figure 4 As shown, the touch structure 20 includes a first touch metal layer 21, the first touch metal layer 21 located in the display area AA includes a first conductive part 211 and an oxidized insulating part 212, and the oxidized insulating part 212 is located on the side of the first conductive part 211 away from the substrate 20; the color resistance structure 30 is in contact with the oxidized insulating part 212.

[0041] Among them, the first touch metal layer 21 can include a touch electrode and / or a touch trace, and the embodiment of the present application does not make specific limitation thereon, and can be set according to actual needs. In addition, the material of the first touch metal layer 21 can include molybdenum, aluminum, titanium aluminum titanium, etc., which is not specifically limited here and can be set according to actual needs.

[0042] Specifically, the first conductive part 211 of the first touch metal layer 21 is used to transmit a touch signal (such as a touch driving signal or a touch sensing signal), which can be a touch electrode or a touch trace itself. Since the color resistance structure 30 is usually an organic material, it is easy to corrode the metal material of the first conductive part 211, affecting the signal transmission performance of the first conductive part 211. Therefore, the oxidized insulating part 212 is arranged on the side of the first conductive part 211 away from the substrate 20, i.e. the oxidized insulating part 212 is located between the first conductive part 211 and the color resistance structure 30 and is in contact with the color resistance structure 30, so that the color resistance structure 30 is separated from the first conductive part 211, to improve the reliability and stability of the first conductive part 211.

[0043] Optionally, continuing to refer to Figure 4 , the first conductive part 211 and the oxidized insulating part 212 include the same metal element.

[0044] It can be understood that the oxidized insulating portion 212 of the first touch metal layer 21 can be obtained by oxidizing the first conductive portion 211, so that the first conductive portion 211 and the oxidized insulating portion 212 comprise the same metal element, the preparation process is simple, and the reliability and stability of the first conductive portion 211 can be improved. Specifically, when the first conductive portion 211 comprises metal titanium, the oxidized insulating portion 212 can be an oxide of metal titanium, i.e. titanium oxide (TiOx), but is not limited thereto, and can be set according to actual needs.

[0045] Optionally, Figure 5 Another cross-sectional structure schematic diagram of a display panel is provided for the embodiment of the present application, which is combined with reference to Figure 1 and Figure 5 As shown in FIG. 10, the display panel 100 further comprises a non-display area NA located at least one side of the display area AA; the non-display area NA comprises a touch binding area 101; the touch structure 20 further comprises a portion located in the touch binding area 101, and the first touch metal layer 21 located in the touch binding area 101 comprises a second conductive portion 213, the second conductive portion 213 is connected with the touch chip in the touch binding area 101; wherein the color resistance structure 30 exposes the second conductive portion 213.

[0046] It can be understood that the non-display area NA can be located at one side of the display area AA, or can be arranged around the display area AA, and the embodiment of the present application does not make specific limitation thereto, and can be set according to actual needs.

[0047] Exemplarily, Figure 1 As shown in FIG. 10, the non-display area NA is arranged around the display area AA, and the touch binding area 101 is located in the lower frame area of the non-display area, and the touch structure 20 further comprises a portion located in the touch binding area 101. It can be understood that the first touch metal layer 21 in the touch structure 20 can comprise a touch trace, and the touch trace can be extended from the display area AA to the touch binding area 101 of the non-display area NA, so as to be connected with the touch chip. Continuing to refer to Figure 5 As shown in FIG. 10, the first touch metal layer 21 located in the touch binding area 101 comprises a second conductive portion 213, the first conductive portion 211 and the second conductive portion 213 can be located in the same layer, and the second conductive portion 213 does not have any insulating structure away from one side of the substrate 10, i.e. the first touch metal layer 21 located in the touch binding area 101 does not comprise an oxidized insulating portion 212, so that the second conductive portion 213 located in the touch binding area 101 can be connected with the touch chip in the touch binding area 101. Figure 5Further, the color resistance structure 30 can include a part located in the non-display area NA, and the color resistance structure 30 does not overlap with the second conductive part 213 located in the touch binding area 101 along the thickness direction Z of the display panel 100, so that the color resistance structure 30 exposes the second conductive part 213, thereby ensuring that the touch chip can reliably and stably receive the touch signal through the second conductive part 213, thereby realizing the touch function of the display panel 100.

[0048] Optionally, based on the above-mentioned embodiments, Figure 6 Another cross-sectional structure schematic diagram of a display panel provided by the embodiments of the present application is shown in Figure 6 As shown, the color resistance structure 30 includes a plurality of color different filter structures 31, and the filter structure 31 is in contact with the touch structure 20.

[0049] Referring to Figure 6 , the first touch metal layer 21 in the touch structure 20 usually includes a plurality of touch sub-parts 210, wherein the touch sub-part 210 includes a touch electrode and / or a touch trace, which can be set according to actual needs.

[0050] It can be understood that in the prior art, a light shielding structure, i.e. a black matrix, is usually required to be arranged between different filter structures 31 to avoid light leakage between adjacent filter structures 31. Usually, the black matrix is a grid-shaped structure surrounding a plurality of openings, the vertical projection of the opening on the substrate and the vertical projection of the corresponding light emitting unit on the substrate 10 overlap, and the light emitted by the light emitting unit is emitted through the opening. Then, each opening is provided with a filter structure 31, and the filter structure 31 can realize color filtering of the light emitted by the light emitting unit in the display panel 100 to realize the color display function of the display panel. When preparing the black matrix, it is often necessary to first coat a layer of black photosensitive resin, and then expose and develop to form the grid-shaped black matrix surrounding the plurality of openings, so that the thickness of the display panel is increased, and the preparation process is also complicated.

[0051] Based on this, continuing to refer to Figure 6 , the filter structure 31 in the color resistance structure 30 is in contact with the touch structure 20, which can multiplex the filter structure 31 in contact with the touch structure 20 as a light shielding structure, without the need to set a black matrix as a light shielding structure, which can reduce the number of film layer settings of the display panel 100, and also simplify the preparation process of the display panel 100.

[0052] Optionally, referring to Figure 2 , Figure 4 to Figure 6As shown, the light filter structure 31 includes a first color filter structure 311 and a second color filter structure 312; the display panel 100 also includes a display structure 50 located between the film layer where the substrate 10 is located and the film layer where the touch structure 20 is located, and the display structure 50 includes a plurality of sub-pixels 51; along the thickness direction Z of the display panel 100, the first color filter structure 311 overlaps with the pixel opening 510 of the sub-pixel 51, and the second color filter structure 312 is in contact with the touch structure 20.

[0053] The specific colors of the first color filter structure 311 and the second color filter structure 312 can be set according to actual needs, and the embodiments of the present invention do not impose specific limitations on this.

[0054] Specifically, the emission colors of multiple sub-pixels 51 can be the same or different, including but not limited to red sub-pixels, green sub-pixels, and blue sub-pixels. Each sub-pixel 51 can be formed of a light-emitting material, that is, a light-emitting layer in the light-emitting unit. It can be understood that the light-emitting unit usually also includes a cathode layer and an anode layer located on both sides of the sub-pixel 51. Figure 6 (Not shown in the figure), but not limited thereto. Optionally, the display panel 100 further includes an array layer 110, which includes pixel circuits (not shown in the figure). The pixel circuits are electrically connected to the light-emitting units and are used to provide display driving signals to the light-emitting units to ensure that the light-emitting units emit light and display normally. Further, the pixel circuits may include thin-film transistors and storage capacitors. For example, the pixel circuit can be a "2T1C" pixel circuit formed by two thin-film transistors and one storage capacitor, or a "7T1C" pixel circuit formed by seven thin-film transistors and one storage capacitor, or the pixel circuit may also include other structures. The specific arrangement of the pixel circuits is not limited in the embodiments of the present invention.

[0055] Continue to refer to point 2. Figure 4 to Figure 6 Adjacent sub-pixels 51 are separated by pixel-defining structures 60. For example, the pixel-defining structure 60 can surround the periphery of the sub-pixel 51 to form a pixel opening 510, allowing light emitted by the light-emitting unit to exit through the pixel opening. Along the thickness direction Z of the display panel 100, the first color filter structure 311 overlaps with the pixel opening 510 of the sub-pixel 51, enabling the first color filter structure 311 to filter the light emitted by the light-emitting unit 510 corresponding to the pixel opening, thereby realizing the color display function of the display panel. The second color filter structure 312 is disposed in contact with the touch structure 20, and can filter ambient light, reduce the reflectivity of the display panel 100, and improve the display effect.

[0056] It should be noted that continued reference is necessary. Figure 2 , Figure 4 to Figure 6The display panel 100 can further include an encapsulation structure 90 and a buffer layer 120 between the film layer where the display structure 50 is located and the film layer where the touch structure 20 is located, wherein the encapsulation structure 90 at least includes an inorganic layer, for example, the encapsulation structure 90 can be a stacked structure of inorganic layer-organic layer-inorganic layer, but is not limited thereto, and can be set according to actual needs.

[0057] In an optional embodiment, Figure 7 A schematic diagram of a cross-sectional structure of another display panel provided by an embodiment of the present application is shown in FIG. 6. Figure 7 As shown in FIG. 6, the second color filter structure 312 is located between two adjacent first color filter structures 311; the color of the second color filter structure 312 is different from the colors of the two first color filter structures 311 adjacent to the second color filter structure 312.

[0058] For example, Figure 7 As shown in FIG. 6, the first color filter structure 311 can be a red color filter structure 311-R, a green color filter structure 311-G, or a blue color filter structure 311-B, and along the thickness direction Z of the display panel 100, the first color filter structure 311 overlaps the pixel opening 510 of the sub-pixel 51, so that the first color filter structures 311 of different colors can filter the light emitted by the corresponding sub-pixel 51 in the display structure 50 to realize the color display function of the display panel 100.

[0059] Further, the color of the second color filter structure 312 is different from the colors of the two first color filter structures 311 adjacent to the second color filter structure 312, and as shown in FIG. 6, Figure 7 the second color filter structure 312 located between the green color filter structure 311-G and the blue color filter structure 311-B is a red color filter structure 312-R, and by analogy, the second color filter structure 312 located between the red color filter structure 311-R and the green color filter structure 311-G is a blue color filter structure 312-B, and the second color filter structure 312 located between the red color filter structure 311-R and the blue color filter structure 311-B is a green color filter structure 312-G. In this way, the mutual crosstalk of the second color filter structure 312 and the adjacent first color filter structure 311 is avoided to provide display quality.

[0060] In another optional embodiment, Figure 8 A schematic diagram of a cross-sectional structure of another display panel provided by an embodiment of the present application is shown in FIG. 7. Figure 8 As shown in FIG. 7, the second color filter structure 312 is located between two adjacent first color filter structures 311; the color of the second color filter structure 312 is the same as the color of one of the two first color filter structures 311 adjacent to the second color filter structure 312 and is prepared by the same process.

[0061] The first color filter structure 311 and the second color filter structure 312 can be any one of a red color filter structure, a green color filter structure or a blue color filter structure. Figure 8 The red color filter structure 311-R, the green color filter structure 311-G and the blue color filter structure 311-B in the first color filter structure 311 are arranged in sequence and are spaced apart. The color of the second color filter structure 312 is the same as the color of one of the two first color filter structures 311 adjacent to the second color filter structure 312 and is prepared by the same process. The structure is not limited to Figure 8 The structure is such that the second color filter structure 312 can be integrally arranged with one of the adjacent first color filter structures 311, simplifying the arrangement of the second color filter structure 312 and the manufacturing process of the display panel, reducing the cost, and at the same time, ensuring that the film layer structure of the display panel is simple, which is beneficial to the thin design of the display panel.

[0062] Optionally, Figure 9 Another cross-sectional structure of a display panel is provided for the embodiment of the present application, as shown in Figure 9 The second color filter structure 312 is located between the two adjacent first color filter structures 311. The reflectivity of the second color filter structure 312 is less than the reflectivity of the first color filter structure 311.

[0063] Specifically, the second color filter structure 312 overlaps the touch structure 20 and replaces the existing light-shielding matrix to reflect the light from the external environment incident on the display panel. The light-shielding matrix does not need to be additionally prepared, and the manufacturing process can be reduced. Further, by setting the reflectivity of the second color filter structure 312 to be less than the reflectivity of the first color filter structure 311, the light from the external environment can be reduced without affecting the light transmittance of the first color filter structure 311. Thus, the reflected light from the display panel can be reduced, that is, the external environment light can be reduced to interfere with the light from the sub-pixel 51, and the display effect of the display panel can be improved.

[0064] As a feasible arrangement, optionally, continuing to refer to Figure 9The second color filter structure 312 includes a red color filter structure 312-R. It can be understood that, since the wavelength of blue light is close to the wavelength of green light, when the two adjacent first color filter structures 311 are a blue color filter structure 311-B and a green color filter structure 311-G respectively, the second color filter structure 312 between the two first color filter structures 311 can be set as a red color filter structure 312-R, so that the crosstalk of light can be avoided. Meanwhile, when the first color filter structure 311 is a red color filter structure 311-R, the second color filter structure 312 is set as a red color filter structure 312-R, so that the first color filter structure 311 and the second color filter structure 312 can be prepared by the same preparation process, without increasing the process. Further, when the sub-pixel 51 is a micro light emitting diode, the light emitting efficiency of a red sub-pixel is usually lower than that of a green sub-pixel or a blue sub-pixel. By setting the second color filter structure 312 to include a red color filter structure 312-R, the light transmittance of red light can be improved, which is beneficial to improving the display effect of the display panel.

[0065] Optionally, Figure 10 Another cross-sectional structure diagram of a display panel provided by an embodiment of the present application is shown in FIG. 8. Figure 10 As shown in FIG. 8, the color resistance structure 30 is flush on the side away from the substrate 10; the display panel 100 further includes an optical adhesive layer 70 located on the side of the color resistance structure 30 away from the substrate 10 and a cover structure 80 located on the side of the optical adhesive layer 70 away from the substrate 10, and the optical adhesive layer 70 is in contact with the color resistance structure 30.

[0066] The cover structure 80 can be a glass cover.

[0067] Specifically, the material of the optical adhesive layer 70 can be an insulating material such as resin, which is used to bond the color resistance structure 30 and the cover structure 80 together. In this embodiment, the color resistance structure 30 is flush on the side away from the substrate 10, and there is no need to set a planarization film layer on the side of the color resistance structure 30 away from the substrate 10, which is beneficial to reducing the thickness of the display panel 100 and simplifying the preparation process.

[0068] Based on the same inventive concept, an embodiment of the present application further provides a preparation method of a display panel, Figure 11 A flowchart of a preparation method of a display panel provided by an embodiment of the present application is shown in FIG. 9. Figure 2 、 Figure 4 to Figure 11 As shown in FIG. 9, the display panel 100 includes a display area AA; the preparation method of the display panel 100 includes:

[0069] S101, providing a substrate.

[0070] S102, preparing a touch structure on one side of the substrate, and the touch structure is located at least in the display area.

[0071] Reference Figure 2 、 Figure 4 to Figure 10 In addition to the preparation of the touch structure 20, the display structure 50 also needs to be prepared, and the encapsulation structure 90 and the buffer layer 120 are sequentially prepared between the display structure 50 and the touch structure 20, wherein the encapsulation structure 90 covers the display structure 50, and the encapsulation structure 90 can be a laminated structure of inorganic layer-organic layer-inorganic layer, but is not limited thereto, and can be set according to actual needs.

[0072] S103, a color resistance structure is prepared on the side of the touch structure away from the substrate substrate, and the color resistance structure is at least located in the display area and is arranged in contact with the touch structure.

[0073] Reference Figure 6 to Figure 10 The color resistance structure 30 can include a plurality of color resistance structures 31 of different colors, and the color resistance structures 31 of the same color are formed by using one mask plate for evaporation.

[0074] In the embodiment, the color resistance structure 30 is directly arranged on the side of the touch structure 20 away from the substrate substrate 10, that is, the color resistance structure 30 is arranged in contact with the touch structure 20, and no other film layer structure needs to be arranged between the color resistance structure 30 and the touch structure 20, so that the number of film layers of the display panel 100 can be reduced, the thinning of the display panel 100 is facilitated, and meanwhile, the preparation process can be simplified and the manufacturing cost can be reduced when the display panel is prepared.

[0075] Reference Figure 4 to Figure 5 As shown in the figure, the touch structure 20 includes a first touch metal layer 21, the first touch metal layer 21 located in the display area AA includes a first conductive part 211 and an oxidized insulating part 212, and the oxidized insulating part 212 is located on the side of the first conductive part 211 away from the substrate substrate 10. Figure 11 In step S102, the touch structure is prepared on one side of the substrate substrate, including: preparing a first touch metal layer on one side of the substrate substrate; patterning the first touch metal layer to form a plurality of touch subparts, the touch subparts including a touch electrode and / or a touch trace; and performing an oxidation treatment on the side of the touch subpart away from the substrate substrate to form an oxidized insulating part. Figure 12 The flow chart of another preparation method of a display panel provided by the embodiment of the application is shown in FIG. 2B, and the preparation method includes the following steps. Figure 12

[0076] S201, providing a substrate substrate.

[0077] S202, preparing a first touch metal layer on one side of the substrate substrate.

[0078] The first touch metal layer 21 includes but is not limited to conductive metal materials such as molybdenum, titanium, or titanium-aluminum-titanium.

[0079] ​S203, patterning the first touch metal layer to form a plurality of touch subparts, the touch subparts including touch electrodes and / or touch wires.

[0080] Specifically, referring to Figure 4 to Figure 6 , using a mask plate to expose and develop the first touch metal layer 21, and etching to form a plurality of touch subparts 210, the touch subparts 210 including touch electrodes and / or touch wires.

[0081] S204, performing oxidation treatment on a side of the touch subparts away from the substrate to form an oxidation insulating part.

[0082] Specifically, continuing to refer to Figure 4 to Figure 6 , using oxygen plasma to treat a side of the plurality of touch subparts 210 away from the substrate, or introducing oxygen during the manufacturing of the touch subparts 210, so that the touch subparts 210 form the oxidation insulating part 212 on the side away from the substrate 10, and the touch subparts 210 form the first conductive part 211 on the side close to the substrate 10.

[0083] S205, preparing a color resist structure on a side of the touch structure away from the substrate, the color resist structure being located at least in a display area and being arranged in contact with the touch structure.

[0084] In the embodiment, the touch structure 20 includes touch electrodes and / or touch wires, and since the touch structure 20 is arranged in direct contact with the color resist structure 30, it is necessary to form the oxidation insulating part 212 on the side of the touch structure 20 away from the substrate 10. Thus, the oxidation insulating part 212 can be formed after the patterning of the touch structure 20, so as to improve the reliability of the touch structure 20.

[0085] In another optional embodiment, in Figure 11 step S102, preparing a touch structure on a side of a substrate includes: preparing a first touch metal layer on a side of a substrate; performing oxidation treatment on a side of the first touch metal layer away from the substrate to form an oxidation insulating part; and patterning the first touch metal layer after the oxidation treatment to form a plurality of touch subparts, the touch subparts including touch electrodes and / or touch wires. Figure 13 A flowchart of another method for manufacturing a display panel according to an embodiment of the present application is shown in Figure 13 , and the method includes:

[0086] S301, providing a substrate.

[0087] S302, preparing a first touch metal layer on a side of the substrate.

[0088] S303, performing oxidation treatment on a side of the first touch metal layer away from the substrate to form an oxidation insulating part.

[0089] S304. Pattern the first touch metal layer after oxidation treatment to form multiple touch sections, each of which includes touch electrodes and / or touch traces.

[0090] S305. A color resist structure is prepared on the side of the touch structure away from the substrate. The color resist structure is located at least in the display area and is in contact with the touch structure.

[0091] Specifically, with Figure 12 The difference is that in this embodiment, the process of forming the oxide insulating portion 212 on the side of the touch structure 30 away from the substrate 10 is as follows: first, the prepared complete first touch metal layer 21 is oxidized so that the first touch metal layer 21 includes two parts: a first conductive portion 211 and an oxide insulating portion 212. Then, the oxidized first touch metal layer 21 is exposed and developed, and etched to form multiple touch portions 210. Similarly, the touch structure 20 that is in direct contact with the color resist structure 30 can form the oxide insulating portion 212 on the side away from the substrate 10, so as to improve the reliability of the touch structure 20.

[0092] Optional, continue to refer to Figure 5 The display panel 100 also includes a non-display area NA, which is located on at least one side of the display area AA; the non-display area NA includes a touch bonding area 101; the touch structure 20 also includes a portion located in the touch bonding area 101, and the first touch metal layer 21 located in the touch bonding area 101 includes a second conductive portion 213, which is bonded to the touch chip in the touch bonding area 101. Figure 11 to Figure 13 Based on this, the method for manufacturing the display panel also includes: etching the touch structure using a color resist structure as a mask to expose the second conductive part of the color resist structure.

[0093] For example, with Figure 12 Taking the provided preparation method as an example, Figure 14 A flowchart illustrating another method for manufacturing a display panel according to an embodiment of the present invention is shown below. Figure 14 As shown, the preparation method includes:

[0094] S401, Provide a substrate.

[0095] S402. Prepare a first touch metal layer on one side of the substrate.

[0096] S403. Pattern the first touch metal layer to form multiple touch portions, each touch portion including touch electrodes and / or touch traces.

[0097] S404. The side of the touch portion away from the substrate is oxidized to form an oxidized insulating portion.

[0098] S405. A color resist structure is prepared on the side of the touch structure away from the substrate, wherein the color resist structure is located at least in the display area and is in contact with the touch structure.

[0099] S406. The touch structure is etched using the color resist structure as a mask so that the color resist structure exposes the second conductive part.

[0100] In this embodiment, the color resist structure 30 may include a portion located in the non-display area NA, as can be referred to... Figure 5 As shown, but not limited to, the color resist structure 30 can also be located only in the display area AA. Here, it is only necessary to ensure that the color resist structure 30 does not overlap with the touch binding area 101. In this way, by using the color resist structure 30 as a mask to etch the touch structure 20, that is, to etch away the oxide insulating portion 212 on the touch structure 20 located in the touch binding area 101, the second conductive portion 213 can be obtained, thus exposing the second conductive portion 213 of the color resist structure 30. No additional mask is required, reducing the number of mask used, thereby simplifying the manufacturing process and reducing manufacturing costs.

[0101] Based on the same inventive concept, embodiments of the present invention also provide a display device. Figure 15 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention, such as... Figure 15 As shown, the display device 200 includes a display panel 100 provided in any embodiment of the present invention. The display device 200 provided in the embodiments of the present invention can be a mobile phone or any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet computer, digital camera, smart bracelet, smart glasses, vehicle display, medical equipment, industrial control equipment, touch interactive terminal, etc. The embodiments of the present invention do not make any special limitations on these.

[0102] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that, Including the display area; The display panel also includes: Substrate; A touch structure located on one side of the substrate, wherein the touch structure is at least located in the display area; A color resist structure is located on the side of the touch structure away from the substrate. The color resist structure is located at least in the display area and is in contact with the touch structure. No other film layer structure is disposed between the color resist structure and the touch structure. The color resist structure includes multiple light filter structures. The light filter structure that is in contact with the touch structure is reused as a light shielding structure, and no other light shielding structure is provided separately. The filter structure includes a first color filter structure and a second color filter structure; The display panel further includes a display structure located between the film layer where the substrate is located and the film layer where the touch structure is located, and the display structure includes a plurality of sub-pixels; Along the thickness direction of the display panel, the first color filter structure overlaps with the pixel opening of the sub-pixel, and the second color filter structure is in contact with the touch structure; The second color filter structure is located between two adjacent first color filter structures; The reflectance of the second color filter structure is less than that of the first color filter structure; The second color filter structure includes a red light color filter structure.

2. The display panel according to claim 1, characterized in that, The touch structure includes a first touch metal layer, the first touch metal layer located in the display area includes a first conductive part and an oxide insulating part, the oxide insulating part is located on the side of the first conductive part away from the substrate; The color resist structure is disposed in contact with the oxide insulating part.

3. The display panel according to claim 2, characterized in that, The first conductive part and the oxide insulating part both contain the same metallic element.

4. The display panel according to claim 2, characterized in that, The display panel further includes a non-display area, which is located on at least one side of the display area; The non-display area includes a touch-binding area; The touch structure also includes a portion located in the touch bonding area, and the first touch metal layer located in the touch bonding area includes a second conductive portion, which is bonded to the touch chip in the touch bonding area; The color resist structure exposes the second conductive portion.

5. The display panel according to claim 1, characterized in that, The color resist structure includes multiple filter structures with different colors.

6. The display panel according to claim 5, characterized in that, The second color filter structure is located between two adjacent first color filter structures; The color of the second color filter structure is different from the color of the two first color filter structures arranged adjacent to it.

7. The display panel according to claim 5, characterized in that, The second color filter structure is located between two adjacent first color filter structures; The color of the second color filter structure is the same as the color of one of the two first color filter structures arranged adjacent to it, and both are prepared by the same process.

8. The display panel according to claim 1, characterized in that, The side of the color resist structure facing away from the substrate is flush. The display panel further includes: An optical adhesive layer is located on the side of the color resist structure away from the substrate, and a cover plate structure is located on the side of the optical adhesive layer away from the substrate, wherein the optical adhesive layer is disposed in contact with the color resist structure.

9. A method for manufacturing a display panel, characterized in that, The display panel includes a display area; the method for manufacturing the display panel includes: Provide substrates; A touch structure is formed on one side of the substrate, and the touch structure is located at least in the display area; A color resist structure is prepared on the side of the touch structure away from the substrate. The color resist structure is located at least in the display area and is in contact with the touch structure. No other film layer structure is provided between the color resist structure and the touch structure. The color resist structure includes multiple light filter structures. The light filter structure that is in contact with the touch structure is reused as a light shielding structure, and no other light shielding structure is provided separately. The filter structure includes a first color filter structure and a second color filter structure; The display panel further includes a display structure located between the film layer where the substrate is located and the film layer where the touch structure is located, and the display structure includes a plurality of sub-pixels; Along the thickness direction of the display panel, the first color filter structure overlaps with the pixel opening of the sub-pixel, and the second color filter structure is in contact with the touch structure; The second color filter structure is located between two adjacent first color filter structures; The reflectance of the second color filter structure is less than that of the first color filter structure; The second color filter structure includes a red light color filter structure.

10. The method for manufacturing a display panel according to claim 9, characterized in that, The touch structure includes a first touch metal layer, the first touch metal layer located in the display area includes a first conductive part and an oxide insulating part, the oxide insulating part is located on the side of the first conductive part away from the substrate; A touch structure is fabricated on one side of the substrate, comprising: A first touch metal layer is prepared on one side of the substrate. The first touch metal layer is patterned to form multiple touch portions, each touch portion including touch electrodes and / or touch traces; The side of the touch portion away from the substrate is oxidized to form an oxidized insulating portion.

11. The method for manufacturing a display panel according to claim 9, characterized in that, The touch structure includes a first touch metal layer, the first touch metal layer located in the display area includes a first conductive part and an oxide insulating part, the oxide insulating part is located on the side of the first conductive part away from the substrate; A touch structure is fabricated on one side of the substrate, comprising: A first touch metal layer is prepared on one side of the substrate. The side of the first touch metal layer away from the substrate is oxidized to form an oxidized insulating portion; The first touch metal layer after oxidation treatment is patterned to form multiple touch portions, each of which includes touch electrodes and / or touch traces.

12. The method for manufacturing a display panel according to claim 10 or 11, characterized in that, The display panel further includes a non-display area, which is located on at least one side of the display area; the non-display area includes a touch-binding area. The touch structure also includes a portion located in the touch bonding area, and the first touch metal layer located in the touch bonding area includes a second conductive portion, which is bonded to the touch chip in the touch bonding area; The method for manufacturing the display panel further includes: The touch structure is etched using the color resist structure as a mask to expose the second conductive part of the color resist structure.

13. A display device, characterized in that, Includes the display panel as described in any one of claims 1-8.

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