Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. According to the display panel, a first touch metal layer comprises a first opening, a first touch insulating layer is arranged on the first touch metal layer and extends into the first opening, a second opening is formed in the area, corresponding to the first opening, of the first touch insulating layer, and a second touch metal layer comprises a third opening; the second touch insulating layer is arranged on the second touch metal layer and extends into the second opening and the third opening, and the refractive index of the second touch insulating layer is larger than that of the first touch insulating layer, so that the side walls of the second touch insulating layer and the first touch insulating layer form a fully reflecting surface; when the light emitted by the display panel irradiates the interface of the first touch insulating layer and the second touch insulating layer, the light can be reflected out of the display panel, so that the light emitting efficiency of the display panel can be improved, the light emitting brightness of the display panel can be correspondingly reduced, and the power consumption of the display panel can be reduced.

Description

Technical Field

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

[0002] OLED (Organic Light-Emitting Diode) display devices are widely used due to their advantages such as self-luminescence, wide color gamut, low power consumption, and flexible display. In order to reduce the thickness, existing OLED display devices use DOT (Direct On Cell Touch, the touch layer is directly made on the display panel) technology to prepare the touch layer. The touch layer is generally composed of a touch insulating layer and a touch metal layer. Since the touch metal layer is not light-transmissive, the light emitted by the display device will be blocked, absorbed or reflected by the touch metal layer, resulting in low light output efficiency of the display device. It is necessary to increase the light output brightness of the display device, resulting in high power consumption of the display device.

[0003] Therefore, the existing display device has a technical problem that the touch layer blocks the light, resulting in low light extraction efficiency of the display device. Summary of the invention

[0004] The embodiments of the present application provide a display panel and a display device, which are used to solve the technical problem that the touch layer of the existing display device blocks the light, resulting in low light extraction efficiency of the display device.

[0005] In order to achieve the above object, according to a first aspect of the present application, a display panel is provided, the display panel comprising a substrate and a touch layer arranged on one side of the substrate, the touch layer comprising:

[0006] A first touch metal layer including a first opening;

[0007] A first touch insulating layer is disposed on a side of the first touch metal layer away from the substrate, the first touch insulating layer is disposed on the first touch metal layer and extends into the first opening, and the first touch insulating layer has a second opening in a region corresponding to the first opening;

[0008] a second touch metal layer, disposed on a side of the first touch insulating layer away from the first touch metal layer, the second touch metal layer comprising a third opening; and

[0009] A second touch insulating layer is arranged on a side of the second touch metal layer away from the first touch insulating layer. The second touch insulating layer is arranged on the second touch metal layer and extends into the second opening and the third opening. The refractive index of the second touch insulating layer is greater than the refractive index of the first touch insulating layer.

[0010] Optionally, the display panel further includes:

[0011] A light-emitting functional layer is arranged between the substrate and the touch layer, and the light-emitting functional layer includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit. The first light-emitting unit, the second light-emitting unit and the third light-emitting unit are arranged corresponding to multiple second openings, the area of ​​the first light-emitting unit is smaller than the area of ​​the corresponding second opening, the area of ​​the second light-emitting unit is smaller than the area of ​​the corresponding second opening, and the area of ​​the third light-emitting unit is smaller than the area of ​​the corresponding second opening.

[0012] Optionally, the area of ​​the first light-emitting unit is larger than that of the second light-emitting unit, and the area of ​​the second light-emitting unit is larger than that of the third light-emitting unit.

[0013] The second opening includes a first sub-opening, a second sub-opening and a third sub-opening, the first sub-opening is arranged corresponding to the first light-emitting unit, the second sub-opening is arranged corresponding to the second light-emitting unit, and the third sub-opening is arranged corresponding to the third light-emitting unit.

[0014] An area of ​​the first sub-opening is larger than an area of ​​the second sub-opening, and an area of ​​the second sub-opening is larger than an area of ​​the third sub-opening.

[0015] Optionally, the difference between the diameter of the first sub-opening and the diameter of the first light-emitting unit is equal to the difference between the diameter of the second sub-opening and the diameter of the second light-emitting unit, and the difference between the diameter of the second sub-opening and the diameter of the second light-emitting unit is equal to the difference between the diameter of the third sub-opening and the diameter of the third light-emitting unit.

[0016] Optionally, a material of the first touch insulating layer includes an organic material, and a material of the second touch insulating layer includes an organic material.

[0017] Optionally, the material of the first touch insulating layer includes one of polyacrylate resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polyphenylene ether resin, polyphenylene sulfide resin, benzocyclobutene and silica-type organic materials, and the material of the second touch insulating layer includes one of polyacrylate resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polyphenylene ether resin, polyphenylene sulfide resin, benzocyclobutene and silica-type organic materials.

[0018] Optionally, the thickness of the first touch insulating layer is in a range of ten to twenty times the thickness of the first touch metal layer, and the thickness of the second touch insulating layer is in a range of ten to twenty times the thickness of the first touch metal layer.

[0019] Optionally, the material of the first touch insulating layer includes one of a light-transmitting material and a non-light-transmitting material, and the material of the second touch insulating layer includes a light-transmitting material.

[0020] Optionally, a refractive index of the first touch insulating layer is in a range of 1.1 to 1.5, and a refractive index of the second touch insulating layer is in a range of 1.6 to 2.

[0021] According to a second aspect of the present application, a display device is provided, comprising a display panel as described in any one of the above embodiments.

[0022] The embodiments of the present application provide a display panel and a display device; the display panel comprises a first touch metal layer including a first opening, a first touch insulating layer being arranged on the first touch metal layer and extending into the first opening, a second opening being arranged in a region of the first opening on the first touch insulating layer, a second touch metal layer including a third opening, a second touch insulating layer being arranged on the second touch metal layer and extending into the second opening and the third opening, a refractive index of the second touch insulating layer being greater than a refractive index of the first touch insulating layer, so that the second touch insulating layer and the sidewalls of the first touch insulating layer form a total reflection surface, and when the light emitted by the display panel irradiates the interface between the first touch insulating layer and the second touch insulating layer, the light will be reflected out of the display panel, thereby improving the light output efficiency of the display panel, and correspondingly reducing the light output brightness of the display panel, thereby reducing the power consumption of the display panel.

[0023] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0025] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0026] Figure 1 A schematic diagram of a comparative display device provided in an embodiment of the present application.

[0027] Figure 2 A schematic cross-sectional view of a display panel provided in an embodiment of the present application.

[0028] Figure 3This is a schematic plan view of a first touch insulating layer and a light-emitting functional layer in a display panel provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0030] In order to explain the principle of the technical problem in the embodiment of the present application, the embodiment of the present application provides a comparative display device. It is understandable that the comparative display device cannot be used as the prior art in the embodiment of the present application. Figure 1 As shown, the comparative display device includes a light-emitting film, a packaging film 12 and a touch film, the light-emitting film includes a red light-emitting device 111, a blue light-emitting device 112 and a green light-emitting device 113, and the touch film includes a first metal film 131, a first insulating film 132, a second metal film 133 and a second insulating film 134. When the comparative display device is displayed, the light emitted by each light-emitting device will be emitted from the gap between the first metal film 131 and the second metal film 133, but because the first metal film 131 and the second metal film 133 will block, absorb or reflect the light, the light at a certain angle (specifically, the light at a large angle) cannot be emitted from the comparative display device, resulting in a low light extraction efficiency of the comparative display device. In order to achieve the required brightness, it is necessary to increase the brightness emitted by each light-emitting device, which will cause the power consumption of the comparative display device to become higher. Therefore, the existing display device has a technical problem that the touch layer blocks the light, resulting in a low light extraction efficiency of the display device.

[0031] The embodiments of the present application provide a display panel and a display device to solve the above technical problems.

[0032] Figure 2 A schematic cross-sectional view of a display panel provided in an embodiment of the present application. Figure 3 This is a schematic plan view of a first touch insulating layer and a light-emitting functional layer in a display panel provided in an embodiment of the present application.

[0033] like Figure 2 , Figure 3As shown, an embodiment of the present application provides a display panel, the display panel 2 includes a substrate 21 and a touch layer 25, the touch layer 25 is arranged on one side of the substrate 21, the touch layer 25 includes a first touch metal layer 251, a first touch insulating layer 252, a second touch metal layer 253 and a second touch insulating layer 254, the first touch metal layer 251 includes a first opening 251a, the first touch insulating layer 252 is arranged on a side of the first touch metal layer 251 away from the substrate 21, the first touch insulating layer 252 is arranged on the first touch metal layer 251 and extends into the first opening 251a, and the first touch insulating layer 252 is arranged on the first touch metal layer 251 and extends into the first opening 251a. A second opening 252a is provided in the area corresponding to the first opening 251a, the second touch metal layer 253 is arranged on a side of the first touch insulation layer 252 away from the first touch metal layer 251, the second touch metal layer 253 includes a third opening 253a, the second touch insulation layer 254 is arranged on a side of the second touch metal layer 253 away from the first touch insulation layer 252, the second touch insulation layer 254 is arranged on the second touch metal layer 253 and extends into the second opening 252a and the third opening 253a, and the refractive index of the second touch insulation layer 254 is greater than the refractive index of the first touch insulation layer 252.

[0034] An embodiment of the present application provides a display panel, wherein a first touch metal layer includes a first opening, a first touch insulating layer is arranged on the first touch metal layer and extends into the first opening, a second opening is arranged in a region of the first touch insulating layer corresponding to the first opening, a second touch metal layer includes a third opening, the second touch insulating layer is arranged on the second touch metal layer and extends into the second opening and the third opening, a refractive index of the second touch insulating layer is greater than a refractive index of the first touch insulating layer, so that the second touch insulating layer and the side wall of the first touch insulating layer form a total reflection surface, and when the light emitted by the display panel irradiates the interface between the first touch insulating layer and the second touch insulating layer, it will be reflected out of the display panel, thereby improving the light output efficiency of the display panel, and correspondingly reducing the light output brightness of the display panel, thereby reducing the power consumption of the display panel.

[0035] Specifically, it can be understood that the openings shown in the embodiments of the present application are filled with other film layers. Therefore, the specific shape and size of the openings are not shown in the figures. It can be understood that the shape and size of each opening can be determined according to the shape and size of the film layer filled in the opening. For example, a second touch insulating layer 254 is provided in the second opening 252a, and the shape and size of the second opening can be determined according to the shape and size of the second touch insulating layer 254 provided in the second opening 252a. Similarly, the shapes and sizes of other openings can be determined.

[0036] Specifically, Figure 2 As shown, when the light 26 emitted by the light-emitting functional layer 23 irradiates the interface between the first touch insulating layer 252 and the second touch insulating layer 254, since the refractive index of the second touch insulating layer 254 is greater than the refractive index of the first touch insulating layer 252, a total reflection surface is formed at the interface between the second touch insulating layer and the first touch insulating layer, and the light is reflected out of the display panel, thereby improving the utilization rate of light at a large angle and improving the light extraction efficiency of the display panel. Accordingly, when the required brightness is reached, the light emitting brightness of the light-emitting unit can be reduced compared with the prior art, thereby reducing the power consumption of the display panel.

[0037] In some embodiments, Figure 2 , Figure 3 As shown, the display panel 2 also includes a light-emitting functional layer 23, which is arranged between the substrate 21 and the touch layer 25, and the light-emitting functional layer 23 includes a first light-emitting unit 231, a second light-emitting unit 232 and a third light-emitting unit 233. The first light-emitting unit 231, the second light-emitting unit 232 and the third light-emitting unit 233 are arranged corresponding to the second opening 252a, the area of ​​the first light-emitting unit 231 is smaller than the area of ​​the corresponding second opening 252a, the area of ​​the second light-emitting unit 232 is smaller than the area of ​​the corresponding second opening 252a, and the area of ​​the third light-emitting unit 233 is smaller than the area of ​​the corresponding second opening 252a. By making the area of ​​the first light-emitting unit smaller than the area of ​​the corresponding second opening, the area of ​​the second light-emitting unit smaller than the area of ​​the corresponding second opening, and the area of ​​the third light-emitting unit smaller than the area of ​​the corresponding second opening, it is possible to avoid the first touch metal layer and the second touch metal layer blocking the first light-emitting unit, the second light-emitting unit and the third light-emitting unit due to process fluctuations, and more light can be irradiated to the interface between the side wall of the first touch insulation layer and the second touch insulation layer, thereby improving light utilization.

[0038] Specifically, the light-emitting function layer may include a pixel electrode layer, a pixel definition layer, a light-emitting material layer and a common electrode layer, the pixel electrode layer includes a pixel electrode, the pixel definition layer includes vias corresponding to the first light-emitting unit, the second light-emitting unit and the third light-emitting unit, the vias are arranged corresponding to the second opening, the light-emitting material layer includes a first light-emitting material layer, a second light-emitting material layer and a third light-emitting material layer, the first light-emitting material layer, the second light-emitting material layer and the third light-emitting material layer are respectively arranged in a plurality of vias formed in the pixel definition layer, the pixel electrode, the first light-emitting material layer and the common electrode layer form a first light-emitting unit, the pixel electrode, the second light-emitting material layer and the common electrode layer form a second light-emitting unit, and the pixel electrode, the third light-emitting material layer and the common electrode layer form a third light-emitting unit.

[0039] Specifically, the first light-emitting material layer, the second light-emitting material layer, and the third light-emitting material layer have different light-emitting colors. Specifically, the light-emitting colors of the first light-emitting material layer, the second light-emitting material layer, and the third light-emitting material layer can be blue, red, and green, respectively, but the embodiments of the present application are not limited thereto. The light-emitting colors of the first light-emitting material layer, the second light-emitting material layer, and the third light-emitting material layer can be different. The light-emitting color of one of the first light-emitting material layer, the second light-emitting material layer, and the third light-emitting material layer can be red, green, and blue. For example, the light-emitting colors of the first light-emitting material layer, the second light-emitting material layer, and the third light-emitting material layer can be red, blue, and green, respectively.

[0040] Specifically, the light emitting color of the first light emitting unit may be blue, the light emitting color of the second light emitting unit may be red, and the light emitting color of the third light emitting unit may be green.

[0041] Specifically, by making the area of ​​the first light-emitting unit smaller than the area of ​​the corresponding second opening, the area of ​​the second light-emitting unit smaller than the area of ​​the corresponding second opening, and the area of ​​the third light-emitting unit smaller than the area of ​​the corresponding second opening, when forming the display panel, even if the position of the second opening is shifted due to process deviation, each second opening can still be arranged around the corresponding first light-emitting unit, second light-emitting unit and third light-emitting unit, thereby avoiding light loss and improving the light extraction efficiency of the display panel.

[0042] In some embodiments, Figure 2 , Figure 3 As shown, the display panel 2 further includes an encapsulation layer 24 , and the encapsulation layer 24 is disposed between the light-emitting functional layer 23 and the touch control layer 25 .

[0043] In some embodiments, Figure 2 , Figure 3As shown, the area of ​​the first light-emitting unit 231 is larger than the area of ​​the second light-emitting unit 232, the area of ​​the second light-emitting unit 232 is larger than the area of ​​the third light-emitting unit 233, the second opening 252a includes a first sub-opening 311, a second sub-opening 312 and a third sub-opening 313, the first sub-opening 311 is arranged corresponding to the first light-emitting unit 231, the second sub-opening 312 is arranged with the second light-emitting unit 232, the third sub-opening 313 is arranged corresponding to the third light-emitting unit 233, the area of ​​the first sub-opening 311 is larger than the area of ​​the second sub-opening 312, and the area of ​​the second sub-opening 312 is larger than the area of ​​the third sub-opening 313. By making the area of ​​the first light-emitting unit larger than the area of ​​the second light-emitting unit, and the area of ​​the second light-emitting unit larger than the area of ​​the third light-emitting unit, the luminous efficiency of different light-emitting materials can be similar or even the same, and making the area of ​​the first sub-opening larger than the area of ​​the second sub-opening, and the area of ​​the second sub-opening larger than the area of ​​the third sub-opening, each sub-opening can be arranged corresponding to each light-emitting unit, so that the light output efficiency of each light-emitting material is similar or even the same, thereby improving the light output efficiency and display uniformity of the display panel.

[0044] Specifically, since different luminous materials have different luminous efficiencies, when setting each luminous material, the area of ​​each luminous material can be made different, that is, the area of ​​each luminous unit is different, so that the area of ​​the luminous unit with relatively low luminous efficiency is relatively large, so that the luminous efficiency of each luminous unit is similar or even the same. Accordingly, the area of ​​the sub-opening corresponding to each luminous unit is made different. The second opening can include sub-openings of different sizes corresponding to each luminous unit to avoid blocking the light emitted by each luminous unit and improve the light output efficiency of the display panel.

[0045] Specifically, when the light colors of the first light emitting unit 231, the second light emitting unit 232 and the third light emitting unit 233 are blue, red and green respectively, the areas of the first light emitting unit 231, the second light emitting unit 232 and the third light emitting unit 233 can be reduced in sequence.

[0046] In some embodiments, Figure 3As shown, the difference between the diameter of the first sub-opening 311 and the diameter of the first light-emitting unit 231 is equal to the difference between the diameter of the second sub-opening 312 and the diameter of the second light-emitting unit 232, and the difference between the diameter of the second sub-opening 312 and the diameter of the second light-emitting unit 232 is equal to the difference between the diameter of the third sub-opening 313 and the diameter of the third light-emitting unit 233. By making the difference between the diameter of the first sub-opening and the diameter of the first light-emitting unit equal to the difference between the diameter of the second sub-opening and the diameter of the second light-emitting unit, and the difference between the diameter of the second sub-opening and the diameter of the second light-emitting unit equal to the difference between the diameter of the third sub-opening and the diameter of the third light-emitting unit, it is possible to ensure that the area of ​​each sub-opening is larger than the corresponding light-emitting unit, thereby avoiding the increase of each opening resulting in an excessively small area of ​​the touch metal layer and a poor touch effect.

[0047] Specifically, since the first touch insulating layer will wrap the first touch metal layer, if the area of ​​the second opening of the first touch insulating layer is too large, the area of ​​the first touch metal layer will be relatively small, thereby causing the touch effect to deteriorate or the line width of the touch metal layer to narrow and cause problems such as broken lines. By making the difference between the diameter of each sub-opening and the diameter of the corresponding light-emitting unit equal, the second opening can allow the light emitted by each light-emitting unit to pass through without taking up too much space and causing a deterioration in the touch effect.

[0048] In some embodiments, the light colors of the first light emitting unit 231, the second light emitting unit 232 and the third light emitting unit 233 are blue, red and green respectively, the difference between the diameter of the second sub-opening 312 and the diameter of the second light emitting unit 232 is greater than the difference between the diameter of the first sub-opening 311 and the diameter of the first light emitting unit 231, and the difference between the diameter of the second sub-opening 312 and the diameter of the second light emitting unit 232 is greater than the difference between the diameter of the third sub-opening 313 and the diameter of the third light emitting unit 233. Thus, the light emitting effect of the second light emitting unit can be improved, and the display uniformity can be improved.

[0049] Specifically, the first light emitting unit, the second light emitting unit, and the third light emitting unit are circular in shape, and the first sub-opening, the second sub-opening, and the third sub-opening are circular in shape.

[0050] The above embodiments are described using the shape of each light-emitting unit and the shape of each sub-opening as a circle as an example, but the embodiments of the present application are not limited to this. The shape of each light-emitting unit may be other shapes, the shape of each light-emitting unit may be different, the shape of each sub-opening may be other shapes, the shape of each sub-opening may be different, for example, the shapes of the first light-emitting unit, the second light-emitting unit, the third light-emitting unit, the first sub-opening, the second sub-opening and the third sub-opening are rectangular, or the shapes of the first light-emitting unit and the second light-emitting unit are circular, the shape of the third light-emitting unit is elliptical, the shapes of the first sub-opening and the second sub-opening are circular, and the shape of the third sub-opening is elliptical.

[0051] Specifically, the difference between the diameter of the first sub-opening and the diameter of the first light emitting unit ranges from 3 micrometers to 5 micrometers.

[0052] In some embodiments, the material of the first touch insulating layer includes an organic material, and the material of the second touch insulating layer includes an organic material. By making the material of the first touch insulating layer an organic material and the material of the second touch insulating layer an organic material, it is convenient to pattern the first touch insulating layer, so that the second touch insulating layer fills the opening, and the organic material has good flexibility.

[0053] Specifically, the above embodiment is described by taking the material of the first touch insulation layer as an organic material and the material of the second touch insulation layer as an organic material as an example, but the embodiments of the present application are not limited to this. The material of the first touch insulation layer can be an inorganic material, and the material of the second touch insulation layer can be an inorganic material; one of the first touch insulation layer and the second touch insulation layer can also be an organic material, and the other can be an inorganic material.

[0054] Specifically, when the first touch insulating layer and the second touch insulating layer are light-transmissive, the transmittance of the first touch insulating layer is greater than or equal to 90%, and the transmittance of the second touch insulating layer is greater than or equal to 90%.

[0055] Specifically, the material of the first touch insulating layer includes an organic photoresist, and the material of the second touch insulating layer includes an organic photoresist. Specifically, the first touch insulating layer and the second touch insulating layer can be formed by organic polymer, photosensitive agent and additive.

[0056] In some embodiments, the material of the first touch insulating layer includes one of polyacrylate resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polyphenylene ether resin, polyphenylene sulfide resin, benzocyclobutene and silica-based organic materials, and the material of the second touch insulating layer includes one of polyacrylate resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polyphenylene ether resin, polyphenylene sulfide resin, benzocyclobutene and silica-based organic materials.

[0057] Specifically, when the first touch insulating layer and the second touch insulating layer are made of the above materials, the refractive index of each material can be changed by adjusting the additives in each material.

[0058] Specifically, the material of the first touch insulating layer and the second touch insulating layer may include photosensitive polyimide, and may also include color resist without color particles, ie, transparent color resist. The material of the first touch insulating layer and the second touch insulating layer may be the same as that of the planarization layer.

[0059] In some embodiments, the thickness of the first touch insulating layer 252 is in a range of ten to twenty times the thickness of the first touch metal layer 251, and the thickness of the second touch insulating layer 254 is in a range of ten to twenty times the thickness of the first touch metal layer 251. By making the thickness of the first touch insulating layer in a range of ten to twenty times the thickness of the first touch metal layer, and the thickness of the second touch insulating layer in a range of ten to twenty times the thickness of the first touch metal layer, the touch layer can maintain its capacitance performance, so that its touch performance is better.

[0060] Specifically, it can be understood that since the touch insulating film is generally formed by an inorganic layer, the dielectric constant of the touch insulating film ranges from 3 to 5 farads / micrometer, the thickness of the touch insulating film ranges from 0.5 micrometers to 1 micrometer, and the dielectric constant of the organic photoresist ranges from 3.5 to 6 farads / micrometer. Therefore, according to the capacitance formula, when the dielectric constant increases, the thickness needs to be increased to ensure that the capacitance remains unchanged, so that the display panel has the same touch effect. Therefore, the thickness of the first touch insulating layer can be in the range of ten to twenty times the thickness of the first touch metal layer, and the thickness of the second touch insulating layer can be in the range of ten to twenty times the thickness of the first touch metal layer, so that the touch layer can maintain its capacitance performance and its touch performance is better.

[0061] Specifically, the thickness of the first touch metal layer and the second touch metal layer is 0.1 micrometer, the thickness of the first touch insulating layer ranges from 1 micrometer to 2 micrometers, and the thickness of the portion of the second touch insulating layer corresponding to the second touch metal layer ranges from 1 micrometer to 2 micrometers.

[0062] In some embodiments, the material of the first touch insulating layer 252 includes one of a light-transmitting material and a non-light-transmitting material, and the material of the second touch insulating layer 254 includes a light-transmitting material. By making the material of the first touch insulating layer include one of a light-transmitting material and a non-light-transmitting material, and the material of the second touch insulating layer include a light-transmitting material, light can be emitted from the second touch insulating layer, so that the display panel can work normally.

[0063] Specifically, it can be understood that since the second touch insulation layer is arranged in the second opening, the second touch insulation layer needs to be light-transmissive, and the first touch insulation layer is provided with an opening, and light may not pass through the first touch insulation layer, so that the first touch insulation layer can be a light-transmissive material or a non-light-transmissive material.

[0064] In some embodiments, the refractive index of the first touch insulating layer is in a range of 1.1 to 1.5, and the refractive index of the second touch insulating layer is in a range of 1.6 to 2. By setting the refractive index of the first touch insulating layer in a range of 1.1 to 1.5 and the refractive index of the second touch insulating layer in a range of 1.6 to 2, the first touch insulating layer and the second touch insulating layer have better reflection effects on light, thereby improving the light extraction effect of the display panel.

[0065] Specifically, Figure 2 As shown, the display panel 2 further includes a driving circuit layer 22, and the driving circuit layer 22 is disposed between the substrate 21 and the light-emitting functional layer 23. The driving circuit layer may include a planarization layer.

[0066] Specifically, the encapsulation layer includes a first inorganic layer, an organic layer and a second inorganic layer.

[0067] Specifically, the display panel may further include a color filter layer, and the color filter layer may be disposed on a side of the touch layer away from the substrate.

[0068] Specifically, the display panel may further include a polarizer, and the polarizer may be disposed on a side of the touch layer away from the substrate.

[0069] Specifically, the above embodiment is described by taking the display panel including a light-emitting functional layer as an example, but the embodiments of the present application are not limited thereto. The display panel may be a liquid crystal display panel, and accordingly, the display panel may include an array substrate and a color film substrate.

[0070] Specifically, the above embodiments provide a detailed description of the display panel from the perspective of each film layer, the design of each film layer, the relationship between each film layer, etc. It can be understood that when there is no conflict between the embodiments, the embodiments can be combined. For example, the material of the first touch insulating layer includes one of a light-transmitting material and a non-light-transmitting material, the material of the second touch insulating layer includes a light-transmitting material, the refractive index of the first touch insulating layer is in a range of 1.1 to 1.5, and the refractive index of the second touch insulating layer is in a range of 1.6 to 2.

[0071] At the same time, an embodiment of the present application provides a display device, which includes a display panel as described in any of the above embodiments.

[0072] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0073] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0074] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0075] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A display panel, characterized in that: It includes a substrate and a touch layer arranged on one side of the substrate, and the touch layer includes: A first touch metal layer including a first opening; A first touch insulating layer is disposed on a side of the first touch metal layer away from the substrate, the first touch insulating layer is disposed on the first touch metal layer and extends into the first opening, and the first touch insulating layer has a second opening in a region corresponding to the first opening; a second touch metal layer, disposed on a side of the first touch insulating layer away from the first touch metal layer, the second touch metal layer comprising a third opening; and A second touch insulating layer is arranged on a side of the second touch metal layer away from the first touch insulating layer. The second touch insulating layer is arranged on the second touch metal layer and extends into the second opening and the third opening. The refractive index of the second touch insulating layer is greater than the refractive index of the first touch insulating layer.

2. The display panel according to claim 1, characterized in that: The display panel also includes: a light-emitting functional layer, disposed between the substrate and the touch layer, the light-emitting functional layer comprising a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, the first light-emitting unit, the second light-emitting unit and the third light-emitting unit being disposed corresponding to the plurality of second openings, The area of ​​the first light emitting unit is smaller than the area of ​​the corresponding second opening, the area of ​​the second light emitting unit is smaller than the area of ​​the corresponding second opening, and the area of ​​the third light emitting unit is smaller than the area of ​​the corresponding second opening.

3. The display panel according to claim 2, characterized in that: The area of ​​the first light emitting unit is larger than that of the second light emitting unit, and the area of ​​the second light emitting unit is larger than that of the third light emitting unit. The second opening includes a first sub-opening, a second sub-opening and a third sub-opening, the first sub-opening is arranged corresponding to the first light-emitting unit, the second sub-opening is arranged corresponding to the second light-emitting unit, and the third sub-opening is arranged corresponding to the third light-emitting unit. An area of ​​the first sub-opening is larger than an area of ​​the second sub-opening, and an area of ​​the second sub-opening is larger than an area of ​​the third sub-opening.

4. The display panel according to claim 3, characterized in that: The difference between the diameter of the first sub-opening and the diameter of the first light-emitting unit is equal to the difference between the diameter of the second sub-opening and the diameter of the second light-emitting unit, and the difference between the diameter of the second sub-opening and the diameter of the second light-emitting unit is equal to the difference between the diameter of the third sub-opening and the diameter of the third light-emitting unit.

5. The display panel according to any one of claims 1 to 4, characterized in that: The material of the first touch insulating layer includes an organic material, and the material of the second touch insulating layer includes an organic material.

6. The display panel according to claim 5, characterized in that: The material of the first touch insulating layer includes one of polyacrylate resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polyphenylene ether resin, polyphenylene sulfide resin, benzocyclobutene and silica-based organic materials, and the material of the second touch insulating layer includes one of polyacrylate resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polyphenylene ether resin, polyphenylene sulfide resin, benzocyclobutene and silica-based organic materials.

7. The display panel according to claim 5, characterized in that: The thickness of the first touch insulating layer is in a range of ten to twenty times the thickness of the first touch metal layer, and the thickness of the second touch insulating layer is in a range of ten to twenty times the thickness of the first touch metal layer.

8. The display panel according to any one of claims 1 to 4, characterized in that: The material of the first touch insulating layer includes one of a light-transmitting material and a non-light-transmitting material, and the material of the second touch insulating layer includes a light-transmitting material.

9. The display panel according to any one of claims 1 to 4, characterized in that: The refractive index of the first touch insulating layer is in a range of 1.1 to 1.5, and the refractive index of the second touch insulating layer is in a range of 1.6 to 2.

10. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 9.

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