Display panel and mobile terminal

Abstract

The present application discloses a display panel and a mobile terminal, wherein the display panel comprises an array substrate and a light-emitting functional layer, wherein the array substrate comprises an array layer and at least one inorganic insulating layer arranged on the array layer, wherein the light-emitting functional layer comprises an anode layer and a light-emitting layer arranged on the anode layer, wherein the anode layer is in contact with the inorganic insulating layer, and an orthographic projection of the anode layer on the inorganic insulating layer is located within the inorganic insulating layer; the present application arranges at least one inorganic insulating layer between the light-emitting functional layer and the array layer, and isolates the organic light-emitting material in the light-emitting functional layer from the organic flat layer in the array substrate, thereby preventing water vapor in the organic flat layer from diffusing to the organic light-emitting material under high temperature or light conditions, thereby eliminating the technical problem of failure of the organic light-emitting material due to water vapor and improving the display effect of the product.

Description

Technical Field

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

[0002] With the development of technology and the improvement of people's requirements for products, full-screen products with high screen-to-body ratio have become a highly anticipated development trend of smartphones, so the technology of under-screen camera is particularly important.

[0003] In existing OLED display panels, for under-screen camera display technology, since the metal material in the light-transmitting area needs to be transferred to the periphery of the light-transmitting area, it is necessary to set up a multi-layer organic flat layer for the arrangement of metal lines; and the organic flat layer is easy to absorb water, and under high temperature or mask conditions, the absorbed water vapor will diffuse upward to the organic light-emitting material, causing the organic light-emitting material to fail, resulting in technical problems such as abnormal display of the product. Summary of the invention

[0004] The present application provides a display panel and a mobile terminal to solve the technical problem of abnormal display of existing OLED display panels.

[0005] To solve the above-mentioned problems, the technical solutions provided by this application are as follows:

[0006] The present application provides a display panel, comprising:

[0007] An array substrate, comprising an array layer and at least one inorganic insulating layer disposed on the array layer;

[0008] A light-emitting functional layer, disposed on the array layer, wherein the light-emitting functional layer comprises an anode layer and a light-emitting layer disposed on the anode layer;

[0009] The anode layer is in contact with the inorganic insulating layer, and an orthographic projection of the anode layer on the inorganic insulating layer is located within the inorganic insulating layer.

[0010] In the display panel of the present application, the light-emitting functional layer further includes:

[0011] The pixel definition layer is disposed on the inorganic insulating layer. The pixel definition layer is in contact with the inorganic insulating layer. The orthographic projection of the pixel definition layer on the inorganic insulating layer is located in the inorganic insulating layer.

[0012] In the display panel of the present application, the array substrate further includes:

[0013] At least one organic planar layer, disposed between the non-insulating organic layer and the array layer;

[0014] Wherein, the thickness ratio of the organic planar layer to the inorganic insulating layer ranges from 4 to 5.

[0015] In the display panel of the present application, the array substrate includes:

[0016] A first organic planar layer, disposed on the array layer;

[0017] A second organic planar layer, disposed on the first organic planar layer;

[0018] A first inorganic insulating layer, disposed on the second organic planar layer;

[0019] a second inorganic insulating layer, disposed on the first inorganic insulating layer, the second inorganic insulating layer being in contact with the anode layer; and

[0020] An electrical connection component is arranged between the array layer and the anode layer, the electrical connection component penetrates the second inorganic insulating layer, the first inorganic insulating layer, the second organic planar layer and the first organic planar layer, and the anode layer is electrically connected to the source and drain in the array layer through the electrical connection component.

[0021] In the display panel of the present application, the display panel includes a display area under the screen and a main display area located outside the display area under the screen; wherein the inorganic insulating layer in the display area under the screen is provided with a plurality of stress release holes and a plurality of first contact holes, and the anode layer in the display area under the screen is electrically connected to the source and drain in the array layer through the conductive material in the plurality of first contact holes;

[0022] Wherein, the aperture of the first contact hole is smaller than the aperture of the stress release hole.

[0023] In the display panel of the present application, the diameter of the stress release hole in the inorganic insulating layer is smaller than the diameter of the stress release hole in the organic planar layer.

[0024] In the display panel of the present application, a plurality of second contact holes are provided on the inorganic insulating layer in the main display area, and the anode layer in the main display area is electrically connected to the source and drain electrodes in the array layer through the conductive material in the plurality of second contact holes;

[0025] Wherein, the distribution density of the stress release holes is smaller than the distribution density of the second contact holes.

[0026] In the display panel of the present application, the under-screen display area includes a light-transmitting area and a non-light-transmitting area located outside the light-transmitting area, the film layer material in the light-transmitting area is composed of a transparent material, and a light-shielding metal material is provided in the non-light-transmitting area;

[0027] A plurality of first release holes are arranged on the inorganic insulating layer in the light-transmitting area, and a plurality of second release holes are arranged on the inorganic insulating layer in the light-impermeable area, wherein the aperture of the second release holes is smaller than the aperture of the first release holes.

[0028] In the display panel of the present application, the distribution density of the second release holes is smaller than the distribution density of the first release holes.

[0029] The present application also proposes a mobile terminal, which includes a terminal body and the above-mentioned display panel, and the terminal body and the display panel are combined into one.

[0030] Beneficial effects: The present application discloses a display panel and a mobile terminal, wherein the display panel includes an array substrate and a light-emitting functional layer, the array substrate includes an array layer and at least one inorganic insulating layer arranged on the array layer, the light-emitting functional layer includes an anode layer and a light-emitting layer arranged on the anode layer, the anode layer and the inorganic insulating layer are in contact, and the orthographic projection of the anode layer on the inorganic insulating layer is located in the inorganic insulating layer; the present application arranges at least one inorganic insulating layer between the light-emitting functional layer and the array layer, and isolates the organic light-emitting material in the light-emitting functional layer from the organic flat layer in the array substrate, thereby avoiding the diffusion of water vapor in the organic flat layer to the organic light-emitting material under high temperature or light conditions, thereby eliminating the technical problem of failure of the organic light-emitting material due to water vapor and improving the display effect of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0032] Figure 1 is an enlarged view of a sub-pixel in a normal display panel;

[0033] Figure 2 is an enlarged view of a sub-pixel in an abnormal display panel;

[0034] Figure 3 A cross-sectional view of a display panel for this application;

[0035] Figure 4 A schematic top view of the structure of the display panel of the present application;

[0036] Figure 5 For existing technology Figure 4 DD section view at the middle section;

[0037] Figure 6 For this application Figure 4 DD section view of the middle section. DETAILED DESCRIPTION

[0038] 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.

[0039] For under-screen camera display technology, since the metal material in the light-transmitting area of ​​the display panel needs to be transferred to the periphery of the light-transmitting area, it is necessary to set up multiple layers of organic flat layers for the arrangement of metal lines; please refer to Figure 1 and Figure 2 , Figure 1 This is an enlarged view of a sub-pixel in a normal display panel. Figure 2 This is an enlarged view of a sub-pixel in an abnormal display panel. The water vapor absorbed by the organic planar layer will diffuse upward to the organic light-emitting material, causing the organic light-emitting material to fail. Figure 2 The organic light emitting material shrinks inward, and abnormal problems such as a powder screen appear. The present application proposes a display panel to solve the above technical problems.

[0040] See also Figures 3 to 6 The present application also proposes a display panel 100, which includes:

[0041] The array substrate 200 includes an array layer 10 and at least one inorganic insulating layer 210 disposed on the array layer 10;

[0042] A light-emitting functional layer 300 is disposed on the array layer 10, and the light-emitting functional layer 300 includes an anode layer 301 and a light-emitting layer 302 disposed on the anode layer 301;

[0043] The anode layer 301 is in contact with the inorganic insulating layer 210 , and an orthographic projection of the anode layer 301 on the inorganic insulating layer 210 is located inside the inorganic insulating layer 210 .

[0044] In this embodiment, the present application sets at least one inorganic insulating layer 210 between the light-emitting functional layer 300 and the array layer 10, and isolates the organic light-emitting material in the light-emitting functional layer 300 from the organic flat layer 310 in the array substrate 200, thereby preventing water vapor in the organic flat layer 310 from diffusing into the organic light-emitting material under high temperature or light conditions, thereby eliminating the technical problem of organic light-emitting material failing due to water vapor and improving the display effect of the product.

[0045] The technical solution of the present application is now described in conjunction with specific embodiments.

[0046] See also Figure 3The array substrate 200 may include a substrate 111 and an array layer 10 disposed on the substrate 111. The array layer 10 may include a plurality of thin film transistors 110. The thin film transistors 110 may be of an etching barrier type, a back channel etching type, or may be divided into a bottom gate thin film transistor, a top gate thin film transistor, and the like according to the position of the gate electrode and the active layer 112. There is no specific limitation.

[0047] In this embodiment, the material of the substrate 111 may be glass, quartz, polyimide, etc. The substrate 111 of the present application is described by taking a flexible substrate as an example, and the substrate 111 may include a double layer of polyimide and a buffer material layer between the double layers of polyimide, and a buffer layer 118 is generally provided on the upper layer of the substrate 111.

[0048] In this embodiment, if Figure 3 As shown, taking a top-gate thin film transistor as an example, the thin film transistor 110 may include an active layer 112 arranged on the substrate 111, a gate insulating layer 113 arranged on the active layer 112, a gate layer 117 arranged on the gate insulating layer 113, an inter-insulating layer 114 arranged on the gate layer 117, a source-drain electrode layer 115 arranged on the inter-insulating layer 114, at least one organic planarizing layer 310 arranged on the source-drain electrode layer 115, and at least one inorganic insulating layer 210 arranged on the organic planarizing layer 310.

[0049] In this embodiment, the array substrate 200 also includes a plurality of contact holes arranged between the light-emitting functional layer 300 and the array layer 10, and electrical connection components 120 are arranged in the plurality of contact holes. The anode layer 301 is electrically connected to the source and drain in the array layer 10 through the electrical connection components 120.

[0050] In this embodiment, the material of the inorganic insulating layer 210 may include a compound of silicon oxynitride.

[0051] In this embodiment, the organic planarization layer 310 may include organic materials such as organic resin.

[0052] See also Figure 3The display panel 100 further includes a light-emitting functional layer 300 disposed on the array substrate 200, and the light-emitting functional layer 300 may include an anode layer 301 disposed on the inorganic insulating layer 210, a light-emitting layer 302 disposed on the anode layer 301, and a cathode layer 303 disposed on the light-emitting layer 302. The light-emitting functional layer 300 may further include a pixel definition layer 304, and the pixel definition layer 304 includes a plurality of pixel openings, one of the pixel openings corresponds to an anode in the anode layer 301, and the light-emitting layer 302 may include a plurality of light-emitting pixels corresponding to the plurality of anodes one by one.

[0053] In this embodiment, the display panel 100 may further include a support column disposed on the pixel definition layer 304 and a cover layer 500 disposed on the support column. The support column and the pixel definition layer 304 may be formed in the same process or in a different process.

[0054] In this embodiment, when the display panel 100 is not provided with a support column, please refer to Figure 3 The display panel 100 also includes an encapsulation layer 400 disposed on the light-emitting functional layer 300 and a cover layer 500 disposed on the encapsulation layer 400. The encapsulation layer 400 may include at least a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer stacked on the pixel definition layer 304.

[0055] In the above embodiment, the inorganic insulating layer 210 is arranged between the light-emitting functional layer 300 and the array layer 10, which can isolate the water vapor in the organic material from diffusing into the organic material in the light-emitting functional layer 300. However, since the organic planar layer 310 and the pixel definition layer 304 are laid on the entire surface, and the organic planar layer 310 and the pixel definition layer 304 are both composed of organic materials, if the area of ​​the inorganic insulating layer 210 is small, that is, the organic planar layer 310 and the pixel definition layer 304 cannot be completely isolated, the water vapor in the organic planar layer 310 can still be transferred to the light-emitting material of the light-emitting function through the pixel definition layer 304.

[0056] In the display panel 100 of the present application, please refer to Figure 3 The pixel definition layer 304 in the light-emitting functional layer 300 can be arranged on the inorganic insulating layer 210, that is, the pixel definition layer 304 is in contact with the inorganic insulating layer 210, and the orthographic projection of the pixel definition layer 304 on the inorganic insulating layer 210 is located in the inorganic insulating layer 210.

[0057] In this embodiment, the inorganic insulating layer 210 can be laid on the entire surface of the display panel 100 to isolate the pixel definition layer 304 and the organic planar layer 310, thereby preventing water vapor in the organic planar layer 310 from being transferred to the organic light-emitting material through the pixel definition layer 304, thereby further protecting the organic light-emitting material.

[0058] In the display panel 100 of the present application, the array substrate 200 further includes at least one organic planar layer 310 disposed between the inorganic insulating layer 210 and the array layer 10 , and the thickness ratio of the organic planar layer 310 to the inorganic insulating layer 210 ranges from 4 to 5.

[0059] In this embodiment, the organic planarization layer 310 is mainly provided to ensure the flatness of the film layer in the array layer 10 so that subsequent processes can be performed on the flat film layer surface, thereby improving the stability of the structure.

[0060] In this embodiment, since the inorganic insulating layer 210 has a weak leveling property, the deposition thickness of the inorganic insulating layer 210 cannot be too large, and the thickness ratio of the organic planarization layer 310 to the inorganic insulating layer 210 may be in a range of 4 to 5.

[0061] In this embodiment, the thickness of the organic planar layer 310 may be 1000 nm.

[0062] In this embodiment, the thickness of the inorganic insulating layer 210 may be 200 nm to 250 nm.

[0063] See also Figure 4 The display panel 100 may include an under-screen display area BB and a main display area AA located outside the under-screen display area BB; that is, for a panel that can display under the screen, the film layers in the under-screen display area BB need to be made of transparent materials, so metal lines for transmitting data signals and scanning signals, as well as driving islands such as pixel circuits need to be arranged outside the under-screen display area BB, and due to space limitations, a multi-layer organic planar layer 310 needs to be arranged to layer multiple driving islands to avoid interference between different driving islands.

[0064] In the display panel 100 of the present application, please refer to Figure 3 , the array substrate 200 may include:

[0065] A first organic planar layer 311 is disposed on the array layer 10;

[0066] A second organic planar layer 312 is disposed on the first organic planar layer 311;

[0067] A first inorganic insulating layer 211 is disposed on the second organic planar layer 312;

[0068] A second inorganic insulating layer 212 is disposed on the first inorganic insulating layer 211 , and the second inorganic insulating layer 212 is in contact with the anode layer 301 ; and

[0069] The electrical connection component 120 is arranged between the array layer 10 and the anode layer 301. The electrical connection component 120 passes through the second inorganic insulating layer 212, the first inorganic insulating layer 211, the second organic planarizing layer 312 and the first organic planarizing layer 311. The anode layer 301 is electrically connected to the source and drain in the array layer 10 through the electrical connection component 120.

[0070] In this embodiment, the number of the organic planarization layer 310 and the inorganic insulation layer 210 is not specifically limited here, and only two layers of organic planarization layer 310 and two layers of inorganic insulation layer 210 are taken as examples to illustrate the technical solution of the present application.

[0071] See also Figure 3 The source-drain electrode layer 115 may include a first source-drain electrode 115a and a second source-drain electrode 115b, wherein the first source-drain electrode 115a is disposed on the inter-insulating layer 114, and the second source-drain electrode 115b is disposed on the first organic planarizing layer 311, and the second source-drain electrode 115b is electrically connected to the first source-drain electrode 115a through a source-drain via.

[0072] See also Figure 3 The electrical connection component 120 may include a first connection segment 121, a second connection segment 122 and a third connection segment 123, the first connection segment 121 is located on the second organic planar layer 312, the second connection segment 122 is located on the first inorganic insulating layer 211, and the third connection segment 123 is located on the second inorganic insulating layer 212. The first connection segment 121, the second connection segment 122 and the third connection segment 123 are electrically connected, and the pixel driving island in the display area BB under the screen is arranged by metal arranged on the same layer as the first connection segment 121, the second connection segment 122 and the third connection segment 123, and is electrically connected to the sub-pixels in the display area BB under the screen.

[0073] In this embodiment, the first inorganic insulating layer 211 and the second inorganic insulating layer 212 isolate the organic light-emitting material from the organic planarizing layer 310 in the array substrate 200, thereby preventing water vapor in the organic planarizing layer 310 from being transferred to the organic light-emitting material through the pixel definition layer 304, thereby further protecting the organic light-emitting material.

[0074] In this embodiment, for a flexible panel, the display panel 100 may further include a bending region CC, a flexible opening 116 is provided in the bending region CC, and the first organic planar layer 311 fills the flexible opening 116 to increase the flexibility of the bending region CC.

[0075] Based on the above embodiment, when the inorganic insulating layer 210 is laid as a whole layer, the light-transmitting area DB of the under-screen display panel 100 is not provided with corresponding metal materials, so the area is prone to technical problems of stress concentration, which causes the inorganic insulating layer 210 and the organic planarizing layer 310 in the area to peel off.

[0076] See also Figure 5 The sub-pixels in the under-screen display area BB of the current display panel 100 are connected to the corresponding pixel driving islands through transparent conductive materials. Since the size of the sub-pixels in the under-screen display area BB is smaller than that of the sub-pixels in the main display area AA, the first contact holes 141 connected to the sub-pixels in the under-screen display area BB are smaller than the contact holes in the main display area AA, which results in the inability to release the stress on the inorganic insulating layer 210 in the under-screen display area BB, causing the inorganic insulating layer 210 in this area to peel off.

[0077] In the display panel 100 of the present application, please refer to Figure 6 A plurality of stress release holes 130 and a plurality of first contact holes 141 are provided on the inorganic insulating layer 210 in the under-screen display area BB, and the anode layer 301 in the under-screen display area BB is electrically connected to the source and drain in the array layer 10 through the conductive material in the plurality of first contact holes 141.

[0078] In this embodiment, the diameter of the first contact hole 141 may be smaller than the diameter of the stress release hole 130 .

[0079] In this embodiment, a plurality of stress release holes 130 are added to the inorganic insulating layer 210 in the main display area AA. The stress release holes 130 and the first contact holes 141 work together to release the stress on the inorganic insulating layer 210 , thereby alleviating the technical problem of stress concentration on the inorganic insulating layer 210 .

[0080] In this embodiment, since the adhesion between film layers with different properties is smaller than the adhesion between film layers with the same properties, for example, the adhesion between the inorganic layer and the organic layer is smaller than the adhesion between the organic layer and the organic layer, and the adhesion between the inorganic layer and the organic layer is smaller than the adhesion between the inorganic layer and the inorganic layer, the inorganic layer and the organic layer of the present application are easier to peel off than the inorganic layer and the inorganic layer due to their weaker adhesion.

[0081] In the display panel 100 of the present application, the diameter of the stress release hole 130 in the inorganic insulating layer 210 is smaller than the diameter of the stress release hole 130 in the organic planar layer 310 .

[0082] In this embodiment, since the inorganic insulating layer 210 is easily peeled off from the organic planar layer 310, a stress release hole 130 with a large aperture is set on the organic planar layer 310. While releasing the stress, the contact area between the inorganic insulating layer 210 and the organic planar layer 310 can be increased, further improving the technical problem of peeling of the inorganic insulating layer 210.

[0083] In the display panel 100 of the present application, please refer to Figure 6 A plurality of second contact holes 142 are provided on the inorganic insulating layer 210 in the main display area AA, and the anode layer 301 in the main display area AA is electrically connected to the source and drain in the array layer 10 through the conductive material in the plurality of second contact holes 142 .

[0084] In this embodiment, the distribution density of the stress release holes 130 may be smaller than the distribution density of the second contact holes 142. Since the stress in the display area BB under the screen is released by both the stress release holes 130 and the first contact holes 141, if the distribution density of the stress release holes 130 is greater than the second contact holes 142, it is equivalent to that the total number of holes in the display area BB under the screen will be greater than the total number of the second contact holes 142, which will lead to unequal stress in the main display area AA and the display area BB under the screen, so that the film layer in the main display area AA will have a stress concentration problem.

[0085] In this embodiment, the diameter of the stress release hole 130 and the diameter of the contact hole in the main display area AA may be equal.

[0086] In the display panel 100 of the present application, please refer to Figure 6 The under-screen display area BB includes a light-transmitting area DB and a non-light-transmitting area DA located outside the light-transmitting area DB. The film material in the light-transmitting area DB is made of transparent material, and a light-shielding metal material is arranged in the non-light-transmitting area DA.

[0087] In this embodiment, a plurality of first release holes 131 are provided on the inorganic insulating layer 210 in the light-transmitting area DB, and a plurality of second release holes 132 are provided on the inorganic insulating layer 210 in the non-light-transmitting area DA, wherein the aperture of the second release holes 132 is smaller than the aperture of the first release holes 131.

[0088] In the present embodiment, the light-transmitting area DB in the under-screen display area BB is used for external light to pass through and enter the internal camera, while the non-light-transmitting area DA is used for arranging pixel driving islands required for sub-pixels in the light-transmitting area DB. Therefore, the stress concentration intensity in the inorganic insulating layer 210 in the non-light-transmitting area DA is weaker than the stress concentration intensity in the inorganic insulating layer 210 in the light-transmitting area DB, that is, the aperture of the second release hole 132 is smaller than the aperture of the first release hole 131, so that the stress release intensity in the light-transmitting area DB is stronger than the stress release intensity in the non-light-transmitting area DA, so that the inorganic insulating layer 210 in different areas of the light-transmitting area DB and the non-light-transmitting area DA is evenly stressed, thereby avoiding the problem of stress concentration in the inorganic insulating layer 210 in the under-screen display area BB.

[0089] In this embodiment, the distribution density of the second release holes 132 is less than that of the first release holes 131. Since the pixel driving islands in the non-light-transmitting area DA and the light-transmitting area DB for driving the sub-pixels to emit light are both in the non-light-transmitting area DA, the metal material in the non-light-transmitting area DA is denser than that in the main display area AA, and the stress concentration is the weakest. The distribution density of the second release holes 132 is less than that of the first release holes 131, which balances the problem of uneven stress in the light-transmitting area DB and the non-light-transmitting area DA, so that the stress distribution in the light-transmitting area DB and the non-light-transmitting area DA is uniform, and the problem of film peeling caused by uneven stress distribution is avoided.

[0090] In this embodiment, since the metal material in the non-light-transmitting area DA is denser than that in the main display area AA, the aperture of the second release hole 132 can be smaller than the aperture of the second contact hole 142, or the distribution density of the second release holes 132 is smaller than the distribution density of the second contact holes 142.

[0091] The present application also proposes a mobile terminal, which includes a terminal body and the above-mentioned display panel, wherein the terminal body and the display panel are integrated into one. The terminal body can be a device such as a circuit board bound to the display panel. The mobile terminal can include electronic devices such as mobile phones, televisions, and laptops.

[0092] The present application discloses a display panel and a mobile terminal, wherein the display panel comprises an array substrate and a light-emitting functional layer, wherein the array substrate comprises an array layer and at least one inorganic insulating layer arranged on the array layer, wherein the light-emitting functional layer comprises an anode layer and a light-emitting layer arranged on the anode layer, wherein the anode layer is in contact with the inorganic insulating layer, and an orthographic projection of the anode layer on the inorganic insulating layer is located within the inorganic insulating layer; the present application arranges at least one inorganic insulating layer between the light-emitting functional layer and the array layer, and isolates the organic light-emitting material in the light-emitting functional layer from the organic flat layer in the array substrate, thereby preventing water vapor in the organic flat layer from diffusing to the organic light-emitting material under high temperature or light conditions, thereby eliminating the technical problem of failure of the organic light-emitting material due to water vapor and improving the display effect of the product.

[0093] 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.

[0094] The above is a detailed introduction to a display panel and a mobile terminal provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that: include: An array substrate, comprising an array layer and at least one inorganic insulating layer disposed on the array layer, wherein the inorganic insulating layer comprises a first inorganic insulating layer and a second inorganic insulating layer stacked; A light-emitting functional layer, disposed on the array layer, wherein the light-emitting functional layer comprises an anode layer and a light-emitting layer disposed on the anode layer; The second inorganic insulating layer is arranged on a side of the first inorganic insulating layer away from the array layer, the second inorganic insulating layer is not in contact with the array layer, the anode layer is in contact with the second inorganic insulating layer, and the orthographic projection of the anode layer on the second inorganic insulating layer is located in the second inorganic insulating layer.

2. The display panel according to claim 1, characterized in that: The light-emitting functional layer further comprises: The pixel definition layer is disposed on the inorganic insulating layer. The pixel definition layer is in contact with the inorganic insulating layer. The orthographic projection of the pixel definition layer on the inorganic insulating layer is located in the inorganic insulating layer.

3. The display panel according to claim 1, characterized in that: The array substrate further includes: At least one organic planar layer, disposed between the inorganic insulating layer and the array layer; Wherein, the thickness ratio of the organic planar layer to the inorganic insulating layer ranges from 4 to 5.

4. The display panel according to claim 1, characterized in that: The array substrate comprises: A first organic planar layer, disposed on the array layer; A second organic planar layer, disposed on the first organic planar layer; The first inorganic insulating layer is disposed on the second organic planar layer; the second inorganic insulating layer is disposed on a side of the first inorganic insulating layer away from the second organic planar layer; and An electrical connection component is arranged between the array layer and the anode layer, the electrical connection component penetrates the second inorganic insulating layer, the first inorganic insulating layer, the second organic planar layer and the first organic planar layer, and the anode layer is electrically connected to the source and drain in the array layer through the electrical connection component.

5. The display panel according to any one of claims 3 to 4, characterized in that: The display panel comprises a display area under the screen and a main display area located outside the display area under the screen; wherein the inorganic insulating layer in the display area under the screen is provided with a plurality of stress release holes and a plurality of first contact holes, and the anode layer in the display area under the screen is electrically connected to the source and drain in the array layer through the conductive material in the plurality of first contact holes; Wherein, the aperture of the first contact hole is smaller than the aperture of the stress release hole.

6. The display panel according to claim 5, characterized in that: A hole diameter of the stress release hole in the inorganic insulating layer is smaller than a hole diameter of the stress release hole in the organic planarizing layer.

7. The display panel according to claim 5, characterized in that: A plurality of second contact holes are provided on the inorganic insulating layer in the main display area, and the anode layer in the main display area is electrically connected to the source and drain electrodes in the array layer through the conductive materials in the plurality of second contact holes; Wherein, the distribution density of the stress release holes is smaller than the distribution density of the second contact holes.

8. The display panel according to claim 7, characterized in that: The under-screen display area includes a light-transmitting area and a non-light-transmitting area located outside the light-transmitting area, the film layer material in the light-transmitting area is made of a transparent material, and a light-shielding metal material is provided in the non-light-transmitting area; A plurality of first release holes are arranged on the inorganic insulating layer in the light-transmitting area, and a plurality of second release holes are arranged on the inorganic insulating layer in the light-impermeable area, wherein the aperture of the second release holes is smaller than the aperture of the first release holes.

9. The display panel according to claim 8, characterized in that: The distribution density of the second release holes is smaller than the distribution density of the first release holes.

10. A mobile terminal, characterized in that: The mobile terminal comprises a terminal body and a display panel according to any one of claims 1 to 9, wherein the terminal body and the display panel are integrated into one body.

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