Display panel and display device

By setting irregularly distributed light-transmitting parts on the base substrate of the display panel, the problem of poor imaging quality of the front camera is solved, a full-screen design with high transmittance and high screen-to-body ratio is achieved, and the imaging quality and display effect are improved.

CN115498003BActive Publication Date: 2025-10-17WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Patent Information

Application Number
CN202211203378.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-29
Publication Date
2025-10-17
Estimated Expiration
2042-09-29

AI Technical Summary

Technical Problem

The imaging quality of existing display panel front cameras is poor, mainly due to severe diffraction, which leads to image ghosting and cannot meet the requirements of high screen-to-body ratio designs.

Method used

Irregularly distributed light-transmitting portions are provided on the base substrate of the display panel to improve the light transmittance of the first display area. The flexible film layer design avoids diffraction phenomenon of the corresponding portion of the base substrate, thereby enhancing the light receiving capability of the camera.

Benefits of technology

The light transmittance of the display panel is improved to meet the camera's video function, while avoiding diffraction, improving image quality and achieving a full-screen display effect.

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Abstract

The application discloses a display panel and a display device. The display panel comprises a first display area and a second display area, the light transmittance of the first display area is greater than that of the second display area, and the display panel further comprises a substrate and a display layer. The substrate comprises a plurality of flexible film layers arranged in layers. The display layer is arranged on the substrate. A plurality of light transmission parts are irregularly arranged in the flexible film layer close to the display layer corresponding to the first display area. The light transmission part can improve the light transmittance of the first display area, meet the camera function of the camera, and the plurality of light transmission parts are irregularly arranged, so that the diffraction phenomenon of the part of the substrate corresponding to the first display area is avoided, and the imaging quality is improved.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of display, and particularly relates to a display panel and a display device. BACKGROUND

[0002] With the rapid development of electronic devices, users have higher and higher requirements for screen ratio, so that the full-screen display of electronic devices has attracted more and more attention in the industry.

[0003] At present, a high screen ratio display screen design is applied to an under-screen camera. The screen has pixels corresponding to the area where the imaging optical module is placed, and has a display function to improve the integrity of screen display, so as to become a real full-screen and bring better visual experience. However, in the current shooting area of the front camera, the diffraction phenomenon is more serious, which reduces the imaging quality of the front camera. SUMMARY

[0004] The purpose of the present application is to provide a display panel and a display device, which aims to solve the problem of poor imaging quality of the front camera of the existing display panel.

[0005] The first aspect of the present application provides a display panel, comprising a first display area and a second display area, the light transmittance of the first display area being greater than that of the second display area, the display panel further comprising a substrate and a display layer, the substrate comprising a plurality of flexible film layers stacked; the display layer is arranged on the substrate; wherein a plurality of light-transmitting parts in irregular distribution are arranged in at least the flexible film layer close to the display layer corresponding to the first display area.

[0006] The second aspect of the present application provides a display device comprising the above display panel.

[0007] Compared with the prior art, the display panel provided by the embodiments of the present application comprises a first display area and a second display area, the light transmittance of the first display area being greater than that of the second display area. The display panel further comprises a substrate and a display layer, the substrate comprising a plurality of flexible film layers stacked. Since a plurality of light-transmitting parts are arranged in at least the flexible film layer close to the display layer corresponding to the first display area, the light transmittance of the first display area can be improved to meet the camera function of the camera. And the plurality of light-transmitting parts are arranged irregularly, which can avoid the diffraction phenomenon of the part of the substrate corresponding to the first display area, and improve the imaging quality. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0009] Figure 1 A top view of a display panel provided by an embodiment of the present application;

[0010] Figure 2 A schematic diagram of a film layer structure of a display panel provided by an embodiment of the present application;

[0011] Figure 3 Another schematic diagram of a film layer structure of a display panel provided by an embodiment of the present application;

[0012] Figure 4 A schematic diagram of a film layer structure of a first display area of a display panel provided by an embodiment of the present application;

[0013] Figure 5 Another schematic diagram of a film layer structure of a display panel provided by an embodiment of the present application;

[0014] Figure 6 A top view of a first display area of a display panel provided by an embodiment of the present application;

[0015] Figure 7 Another top view of a first display area of a display panel provided by an embodiment of the present application;

[0016] Figure 8 Another top view of a first display area of a display panel provided by an embodiment of the present application;

[0017] Figure 9 Another top view of a first display area of a display panel provided by an embodiment of the present application;

[0018] Figure 10 Another schematic diagram of a film layer structure of a display panel provided by an embodiment of the present application.

[0019] The following are the reference numerals:

[0020] Display panel 100; first display area AA1; second display area AA2; substrate 10; flexible film layer 10a; first flexible layer 11; second flexible layer 12; light-transmitting portion 13; first light-transmitting portion 13a; second light-transmitting portion 13b; third light-transmitting portion 13c; fourth light-transmitting portion 13d; fifth light-transmitting portion 13e; light-transmitting hole 131; light-transmitting material 132; isolation layer 14; display layer 20; array layer 21; buffer layer 211; active layer 212; gate insulating layer 213; gate electrode 214; interlayer insulating layer 215; source-drain electrode 216; planarization layer 217; light-emitting layer 22; light-emitting unit 22a; anode layer 221; light-emitting functional layer 222; cathode layer 223; encapsulation layer 30; backlight side 100a; light-emitting side 100b. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be further described in details below with reference to the drawings and examples. The detailed description of the following examples and the drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application, i.e., the present application is not limited to the described examples.

[0022] In the description of the present application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error.

[0023] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0024] The orientation words appearing in the following description are the directions shown in the drawings, and are not a limitation on the specific structure of the present application. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] At present, the under-screen camera applies a high screen ratio display screen design. The screen has pixels corresponding to the area where the imaging optical module is placed, and has display function, so as to improve the integrity of screen display, become a real full screen, and bring better visual experience. However, in the current shooting area of the front camera, due to the pixel circuit of the display panel needs to be compensated by circuit, the circuit is relatively complex, and many regular small holes cannot be avoided, the diffraction phenomenon is relatively serious, which causes ghosting in the imaging process, and reduces the imaging quality of the front camera.

[0026] To address the above-mentioned issues, embodiments of the present application provide a display panel comprising a first display area and a second display area, wherein the first display area corresponds to a camera, and the light transmittance of the first display area is greater than that of the second display area. The display panel further comprises a base substrate and a display layer, wherein the base substrate comprises multiple stacked flexible film layers. Because multiple light-transmitting portions are provided at least on the flexible film layer proximal to the display layer, corresponding to the first display area, the light transmittance of the first display area is increased, satisfying the camera's imaging function. Furthermore, the irregular arrangement of the multiple light-transmitting portions prevents diffraction from occurring in the portion of the base substrate corresponding to the first display area, thereby improving imaging quality.

[0027] The above is the core concept of this application. The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0028] like Figure 1 As shown, Figure 1 This is a top view of a display panel provided in an embodiment of the present application. The display panel 100 includes a first display area AA1 and a second display area AA2. The second display area AA2 surrounds at least a portion of the first display area AA1. The transmittance of the first display area AA1 is greater than that of the second display area AA2.

[0029] Figure 2 A schematic diagram of a film structure of a display panel provided in an embodiment of the present application; Figure 2 As shown, the side of the display panel 100 that emits light is the light-emitting side 100b, and the side opposite the light-emitting side 100b is the backlight side 100a. The light transmittance of the first display area AA1 is greater than that of the second display area AA2. This means that the first display area AA1 allows more external light to pass through the display panel 100 from the light-emitting side 100b and exit from the backlight side 100a compared to the second display area AA2.

[0030] The display panel 100 further includes a base substrate 10 and a display layer 20. The base substrate 10 includes a plurality of stacked flexible film layers 10a. The flexible film layers 10a may be made of materials such as polyimide (PI) and polyethylene terephthalate (PET), allowing the display panel 100 to be bent.

[0031] The display layer 20 is arranged on the substrate 10, and the display layer 20 includes an array layer 21 and a light-emitting layer 22. The array layer 21 is generally composed of an active layer 212 and an insulating layer, and the like inorganic film layers. By patterning these inorganic film layers, a driving circuit for controlling the light-emitting layer 22 to emit light can be formed. The specific circuit structure has various implementation manners, and thus will not be described here.

[0032] The light-emitting layer 22 includes a plurality of light-emitting units 22a. The light-emitting units 22a in the first display area AA1 can be distributed more sparsely than the light-emitting units 22a in the second display area AA2, so that the spacing between adjacent light-emitting units 22a in the first display area AA1 is greater than the spacing between adjacent light-emitting units 22a in the second display area AA2, thereby realizing that the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2. Alternatively, the size of the light-emitting units 22a in the first display area AA1 is smaller than the size of the light-emitting units 22a in the second display area AA2, so that when the spacing between adjacent light-emitting units 22a in the first display area AA1 is consistent with the spacing between adjacent light-emitting units 22a in the second display area AA2, the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2. Compared with the second display area AA2, the side of the first display area AA1 away from the light-emitting side 100b of the display panel 100 is more suitable for arranging a light-sensing device such as a camera to sense light emitted from the backlight side 100a of the display panel 100 through the display panel 100 from the light-emitting side 100b of the display panel 100.

[0033] Optionally, the display panel 100 further includes an encapsulation layer 30 arranged on the side of the light-emitting layer 22 away from the substrate 10 and covering the light-emitting layer 22, for protecting the light-emitting layer 22 from being corroded and damaged by water vapor and oxygen. The encapsulation layer 30 can be a thin film encapsulation layer 30 including an inorganic encapsulation layer 30, an organic encapsulation layer 30, and an inorganic encapsulation layer 30 arranged in layers, to block water vapor and oxygen.

[0034] Optionally, the flexible film layer 10a near the display layer 20 is provided with a plurality of irregularly distributed light-transmitting portions 13 corresponding to the first display area AA1. The plurality of irregularly distributed light-transmitting portions 13 can be arranged only on the flexible film layer 10a near the display layer 20, or can be arranged on all the flexible film layers 10a. It should be noted that the irregular distribution of the plurality of light-transmitting portions 13 means that the light-transmitting portions 13 are arranged irregularly, which can be irregular distribution of light-transmitting portions 13 with different sizes, or irregular spacing between the light-transmitting portions 13.

[0035] This embodiment utilizes multiple irregularly distributed light-transmitting portions 13 to not only improve the light transmittance of the first display area AA1, thereby satisfying the camera's imaging function, but also prevents diffraction from occurring in the portion of the base substrate 10 corresponding to the first display area AA1, thereby improving imaging quality. Furthermore, disposing the irregularly distributed light-transmitting portions 13 on the flexible film layer 10a of the base substrate 10 not only facilitates manufacturing processes but also prevents damage to the structure of the display layer 20, thereby ensuring a consistent display effect.

[0036] In some embodiments, the light-transmitting portion 13 is a light-transmitting hole 131 extending perpendicularly through the flexible film layer 10a and extending perpendicularly to the base substrate 10. External light can enter the camera on the backlight side 100a of the display panel 100 through the multiple light-transmitting holes 131, ensuring that the camera receives sufficient light to meet its imaging function. This means that the first display area AA1 not only meets the camera's imaging function but also provides normal display, thereby increasing the screen-to-body ratio of the display panel 100 and achieving a full-screen display effect.

[0037] In other embodiments, Figure 3 As shown, Figure 3 This is a schematic diagram of another film layer structure of a display panel provided in an embodiment of the present application; the light-transmitting portion 13 is a light-transmitting hole 131 that penetrates the flexible film layer 10a in a direction perpendicular to the base substrate 10, and the light-transmitting hole 131 is filled with a light-transmitting material 132, and the light transmittance of the light-transmitting material 132 is greater than the light transmittance of the flexible film layer 10a. The light-transmitting material 132 can be selected from highly light-transmitting materials 132 such as polymethyl methacrylate (PMMA), polystyrene (PS), polycarbonate (PC), polybis(allyl diglycol carbonate) (CR-39), and styrene acrylonitrile copolymer (SAN), and the light transmittance of these materials is greater than the light transmittance of the flexible film layer 10a, so that external light can enter the camera on the backlight side 100a of the display panel 100 through these light-transmitting materials 132, ensuring that the camera receives sufficient light to meet the camera's camera function, while also achieving a full-screen display effect. In addition, after the light-transmitting hole 131 is filled with the light-transmitting material 132 , the light-transmitting portion 13 is a solid structure, which can enhance the strength and mechanical properties of the flexible film layer 10 a of the base substrate 10 and improve the stability and reliability of the display panel 100 .

[0038] In some embodiments, as Figure 4 As shown, Figure 4A schematic diagram of a film layer structure of a first display area of a display panel provided in an embodiment of the present application; the display layer 20 comprises an array layer 21 and a light-emitting layer 22, and the array layer 21 comprises, in sequence from the backlight side 100a to the light-emitting side 100b of the display panel 100, a buffer layer 211, an active layer 212, a gate insulating layer 213, a gate electrode 214, an interlayer insulating layer 215, a source-drain electrode 216, and a planarization layer 217.

[0039] The buffer layer 211 comprises an inorganic insulating material such as silicon nitride or silicon oxide, and the buffer layer 211 can be a single layer or multiple layers comprising the inorganic insulating material.

[0040] The active layer 212, the gate electrode 214, and the source-drain electrode 216 constitute a thin-film transistor, and in the present embodiment, Figure 4 The gate electrode 214 is arranged above the active layer 212 with the gate insulating layer 213 interposed therebetween, and the thin-film transistor is of a top-gate type, but according to other embodiments, the thin-film transistor can also be of a bottom-gate type.

[0041] The gate insulating layer 213 is arranged between the active layer 212 and the gate electrode 214, and the gate insulating layer 213 comprises an inorganic insulating material such as silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, titanium oxide, tantalum oxide, or hafnium oxide. The gate insulating layer 213 can be a single layer or multiple layers comprising the above-mentioned materials.

[0042] The interlayer insulating layer 215 comprises an inorganic insulating material such as silicon oxide, silicon nitride, aluminum oxide, titanium oxide, tantalum oxide, or hafnium oxide. The interlayer insulating layer 215 can be a single layer or multiple layers comprising the above-mentioned materials.

[0043] The planarization layer 217 comprises an organic insulating material, and the organic insulating material comprises a general-purpose polymer such as an imide polymer, polymethyl methacrylate, or polystyrene, or a polymer derivative having a phenolic group, an acrylic polymer, an imide polymer, an aryl ether polymer, an amide polymer, a fluorine polymer, a p-xylene polymer, a vinyl alcohol polymer, or a blend thereof.

[0044] Since the material of the planarization layer 217 has a high light transmittance, in the present embodiment, the light-transmitting material 132 filled in the light-transmitting hole 131 is the same as the material of the planarization layer 217, which facilitates the process preparation of the display panel 100, improves the preparation efficiency, and saves raw materials and reduces costs.

[0045] In some embodiments, the display layer 20 includes a light-emitting layer 22 located on the side of the array layer 21 away from the substrate 10, the light-emitting layer 22 including an anode layer 221, a light-emitting functional layer 222, and a cathode layer 223, the light-emitting functional layer 222 including a light-emitting material layer, a hole transport layer, and an electron transport layer, etc. When the anode layer 221 and the cathode layer 223 are powered, electrons and holes migrate to the light-emitting material layer from the electron transport layer and the hole transport layer, respectively, and meet in the light-emitting material layer, forming excitons to excite light-emitting molecules, thereby generating visible light to achieve the purpose of display.

[0046] As shown in Figure 5 , Figure 5 FIG. 6 is a schematic diagram of another film layer structure of a display panel provided by an embodiment of the present application; the light-emitting layer 22 includes a plurality of light-emitting units 22a, and in the direction perpendicular to the substrate 10, the light-transmitting portion 13 does not overlap the light-emitting unit 22a. That is, in the direction perpendicular to the substrate 10, the projection of the light-transmitting portion 13 on the display panel 100 is arranged in a staggered manner with the projection of the light-emitting unit 22a on the display panel 100, and the projections of the two do not overlap, ensuring that external light can enter the camera on the back light side 100a of the display panel 100 through the entire light-transmitting portion 13, ensuring that the camera receives sufficient light, and further improving the camera function of the camera.

[0047] Specifically, in some embodiments, the light-transmitting portion 13 is arranged between any two adjacent light-emitting units 22a. That is, in the direction perpendicular to the substrate 10, the projections of the light-emitting unit 22a and the light-transmitting portion 13 on the display panel 100 satisfy that the projections of any two adjacent light-emitting units 22a have the projection of the light-transmitting portion 13 therebetween.

[0048] External light passes through the gap between the light-emitting units 22a and then enters the camera through the light-transmitting portion 13. By arranging the light-transmitting portion 13 between any two light-emitting units 22a in the present embodiment, the part of the substrate 10 that does not overlap the light-emitting unit 22a is fully utilized, the number of light-transmitting portions 13 can be increased, and more external light can enter the camera on the back light side 100a of the display panel 100 after passing through the substrate 10.

[0049] As shown in Figure 6 , Figure 6A top view of a first display area of a display panel provided by an embodiment of the present application; more specifically, in some embodiments, the areas of the orthogonal projections of the plurality of light-transmissive portions 13 on the substrate 10 are different from each other, that is, the plurality of light-transmissive portions 13 have different cross-sectional areas parallel to the substrate 10. For example, the plurality of light-transmissive portions 13 are respectively a first light-transmissive portion 13a, a second light-transmissive portion 13b, a third light-transmissive portion 13c, a fourth light-transmissive portion 13d, and a fifth light-transmissive portion 13e, and the areas of the orthogonal projections of the first light-transmissive portion 13a, the second light-transmissive portion 13b, the third light-transmissive portion 13c, the fourth light-transmissive portion 13d, and the fifth light-transmissive portion 13e on the substrate 10 are respectively S1, S2, S3, S4, and S5, and S1, S2, S3, S4, and S5 are different from each other. This embodiment sets the light-transmissive portions 13 with different areas, so that the plurality of light-transmissive portions 13 are irregularly distributed, and the diffraction phenomenon does not occur in the portion of the substrate 10 corresponding to the first display area AA1, thereby improving the imaging quality. It should be noted that, in order to make it easier to understand, five light-transmissive portions 13 are taken as an example in this embodiment, but the number of light-transmissive portions 13 is not limited to this.

[0050] As shown in Figure 7 , Figure 7 Another top view of a first display area of a display panel provided by an embodiment of the present application; in some parallel embodiments, the distances between the plurality of light-transmissive portions 13 are different from each other, that is, the distance between any two adjacent light-transmissive portions 13 is not equal to the distance between any other two adjacent light-transmissive portions 13. For example, the distance between the first light-transmissive portion 13a and the second light-transmissive portion 13b is D1, the distance between the second light-transmissive portion 13b and the third light-transmissive portion 13c is D2, the distance between the third light-transmissive portion 13c and the fourth light-transmissive portion 13d is D3, and the distance between the fourth light-transmissive portion 13d and the fifth light-transmissive portion 13e is D4, and D1, D2, D3, and D4 are different from each other. This embodiment sets the light-transmissive portions 13 with different distances, so that the plurality of light-transmissive portions 13 are irregularly distributed, and the diffraction phenomenon does not occur in the portion of the substrate 10 corresponding to the first display area AA1, thereby improving the imaging quality.

[0051] In other embodiments, the areas of the orthogonal projections of the plurality of light-transmissive portions 13 on the substrate 10 are different from each other, and the distances between the plurality of light-transmissive portions 13 are different from each other. As shown in Figure 8 , Figure 8Another top view of the first display area of the display panel provided by the embodiments of the present application is provided; or the shapes of the plurality of light-transmitting portions 13 are set to be different from each other, that is, the shapes of the plurality of light-transmitting portions 13 in the cross section parallel to the substrate 10 are different from each other. For example, the first light-transmitting portion 13a is rectangular in the cross section parallel to the substrate 10, the second light-transmitting portion 13b is circular in the cross section parallel to the substrate 10, the third light-transmitting portion 13c is elliptical in the cross section parallel to the substrate 10, the fourth light-transmitting portion 13d is fan-shaped in the cross section parallel to the substrate 10, and the fifth light-transmitting portion 13e is square in the cross section parallel to the substrate 10.

[0052] In addition, the plurality of light-transmitting portions 13 can also be set as follows: the shapes of the partial light-transmitting portions 13 are different from each other, the areas of the orthographic projections of the partial light-transmitting portions 13 on the substrate 10 are different from each other, and the intervals between the partial light-transmitting portions 13 are different from each other, as long as the plurality of light-transmitting portions 13 are irregularly distributed on the substrate 10.

[0053] As shown in Figure 9 , Figure 9 Another top view of the first display area of the display panel provided by the embodiments of the present application is provided; in some embodiments, the orthographic projection profile of the light-transmitting portion 13 on the substrate 10 is non-rectangular. The light-transmitting portion 13 is arranged irregularly in a non-rectangular shape, which can ensure that the external light is diffracted when passing through the light-transmitting portion 13, thereby improving the imaging quality of the camera corresponding to the first display area AA1 on the backlight side 100a of the display panel 100.

[0054] Optionally, the orthographic projection profile of the light-transmitting portion 13 on the substrate 10 is one of a circle, an ellipse, or a polygon with rounded corners, and can also include a combination of multiple shapes.

[0055] Figure 10 Another schematic diagram of the film layer structure of the display panel provided by the embodiments of the present application is provided. As shown in Figure 10 In some embodiments, the plurality of flexible film layers 10a includes a first flexible layer 11 and a second flexible layer 12 arranged in layers, and the second flexible layer 12 is located between the first flexible layer 11 and the display layer 20. The substrate 10 of the double-layer flexible film layer 10a has better uniformity, thermal stability, and signal resistance than the substrate 10 of the single-layer flexible film layer 10a. Of course, in other embodiments, more layers of flexible film layers 10a can also be provided.

[0056] Further, the plurality of flexible film layers 10a further comprises an isolation layer 14, which is arranged between the first flexible layer 11 and the second flexible layer 12. The isolation layer 14 is formed of an inorganic material, and has a Van der Waals force with the first flexible layer 11 and the second flexible layer 12. The isolation layer 14 is used to isolate water, oxygen and other harmful gases, so as to prevent the subsequent formation of each film layer on the substrate 10 from being damaged.

[0057] In some embodiments, the light-transmitting portion 13 is arranged in at least one of the second flexible layer 12 and the isolation layer 14. The light-transmitting portion 13 can be arranged only in the second flexible layer 12, or can be arranged in both the isolation layer 14 and the second flexible layer 12, and the first flexible layer 11 is not provided with the light-transmitting portion 13, so as to ensure the integrity of the first flexible layer 11, and facilitate the preparation of various film layers on the first flexible layer 11.

[0058] In some embodiments, the isolation layer 14 is a silicon oxide film layer, a silicon nitride film layer, or a composite film layer of the silicon oxide film layer and the silicon nitride film layer. The isolation layer 14 can be a single-film layer structure, or a composite structure of multiple film layers. When the isolation layer 14 adopts a single-film layer structure, the material thereof can be silicon oxide or silicon nitride. When the isolation layer 14 adopts a composite structure, the isolation layer 14 can be a laminated structure in which silicon oxide film layers and silicon nitride film layers are arranged alternately.

[0059] The second aspect of the present application provides a display device comprising the display panel 100. Since the display device adopts all the technical solutions of all the embodiments of the display panel 100, the display device has all the beneficial effects brought by the technical solutions of the embodiments, which will not be described herein. For example, the display device can be a mobile phone, a computer, a smart wearable device (for example, a smart watch), a vehicle-mounted display device, or other electronic devices, which are not limited in the embodiments of the present application.

[0060] The above merely describes the specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements shall be encompassed in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A display panel, characterized in that: The display panel includes a first display area and a second display area, wherein the light transmittance of the first display area is greater than the light transmittance of the second display area, and the display panel further includes: A substrate, comprising a plurality of flexible film layers stacked in layers; A display layer is provided on the base substrate; In which, corresponding to the first display area, a plurality of irregularly distributed light-transmitting portions are provided at least in the flexible film layer close to the display layer; the areas of the orthographic projections of the plurality of light-transmitting portions on the base substrate are different from each other; the plurality of flexible film layers include a first flexible layer and a second flexible layer stacked together, and the second flexible layer is located between the first flexible layer and the display layer; the plurality of flexible film layers also include an isolation layer, and the isolation layer is arranged between the first flexible layer and the second flexible layer; the light-transmitting portion is arranged in at least one of the second flexible layer and the isolation layer.

2. The display panel according to claim 1, wherein: The light-transmitting portion is a light-transmitting hole that penetrates the flexible film layer in a direction perpendicular to the base substrate.

3. The display panel according to claim 1, wherein: The light-transmitting portion is a light-transmitting hole that penetrates the flexible film layer in a direction perpendicular to the base substrate, and the light-transmitting hole is filled with a light-transmitting material, and the light transmittance of the light-transmitting material is greater than the light transmittance of the flexible film layer.

4. The display panel according to claim 3, wherein: The display layer includes a planarization layer, and the light-transmitting material filled in the light-transmitting hole is the same as the material of the planarization layer.

5. The display panel according to claim 1, wherein: The display layer includes a light-emitting layer, and the light-emitting layer includes a plurality of light-emitting units. In a direction perpendicular to the base substrate, the light-transmitting portion and the light-emitting units do not overlap.

6. The display panel according to claim 5, wherein: The light-transmitting portion is provided between any two adjacent light-emitting units.

7. The display panel according to claim 1, wherein: The distances between the plurality of light-transmitting portions are different from each other. The display panel according to claim 1 , wherein an orthographic projection outline of the light-transmitting portion on the base substrate is non-rectangular.

9. The display panel according to claim 1, wherein: The isolation layer is a silicon oxide film layer, a silicon nitride film layer, or a composite film layer of a silicon oxide film layer and a silicon nitride film layer.

10. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 9.

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