Display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device, the display panel has 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 comprises a display substrate, a support film arranged on a non-display side of the display substrate, and a light-transmissive adhesive part arranged on a side of the support film away from the display substrate, the light-transmissive adhesive part is located in the first display area, and the refractive index of the light-transmissive adhesive part is greater than 1 and less than the refractive index of the support film. A photosensitive component can be bonded to the support film through the light-transmissive adhesive part, the refractive index of the light-transmissive adhesive part is greater than 1 and less than the refractive index of the support film, the refractive index of the light-transmissive adhesive part is closer to that of the support film relative to air, the light-transmissive adhesive part can improve the transmittance of the first display area, and thus the sensitivity of the photosensitive component. In addition, by arranging the light-transmissive adhesive part, the stability of the relative position of the photosensitive component and the support film can be improved, and the stability of the relative position of the photosensitive component and the entire display panel can be improved.

Description

Technical Field

[0001] This application relates to the field of display device technology, and more particularly to a display panel and display device. Background Technology

[0002] With the rapid development of electronic devices, users have increasingly higher requirements for screen ratio, making full-screen displays of electronic devices receive more and more attention from the industry.

[0003] Traditional electronic devices such as mobile phones and tablets need to integrate photosensitive components such as front-facing cameras, earpieces, and infrared sensors. However, due to the high refractive index of multiple film layers within the display panel, the transmittance of the display panel is relatively low, affecting the function of the photosensitive components. Summary of the Invention

[0004] This application provides a display panel and a display device, which aim to improve the transmittance of the display panel.

[0005] An embodiment of the first aspect of this application provides a display panel having a first display area and a second display area, wherein the light transmittance of the first display area is greater than that of the second display area. The display panel includes: a display substrate; a support film disposed on the non-display side of the display substrate; and a light-transmitting adhesive portion disposed on the side of the support film away from the display substrate. The light-transmitting adhesive portion is located in the first display area, and the refractive index of the light-transmitting adhesive portion is greater than 1 and less than the refractive index of the support film.

[0006] According to an embodiment of the first aspect of this application, a buffer layer is further included, disposed on the side of the support film away from the display substrate. The buffer layer includes an opening that extends through and is located in the first display area, and at least a portion of the light-transmitting adhesive portion is located within the opening.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the light-transmitting adhesive portion includes a first segment and a second segment stacked along the thickness direction of the display panel, the first segment being located inside the opening, and the second segment overflowing from the first segment to outside the opening.

[0008] According to any of the foregoing embodiments of the first aspect of this application, the difference between the refractive index of the support film and the refractive index of the light-transmitting adhesive portion is less than or equal to 0.4.

[0009] According to any of the foregoing embodiments of the first aspect of this application, the refractive index of the support film is 1.6 to 1.7, and the refractive index of the light-transmitting adhesive portion is 1.3 to 1.4.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the refractive index of the support film is 1.64 to 1.66.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the material of the light-transmitting adhesive portion includes at least one of silicone resin adhesive, epoxy resin optical adhesive, acrylate photosensitive adhesive, cyanoacrylate adhesive, unsaturated polyester and styrene monomer adhesive, methanol adhesive, fir resin, and polyurethane optical adhesive.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the light transmittance of the light-transmitting adhesive portion is greater than or equal to 30%.

[0013] According to any of the foregoing embodiments of the first aspect of this application, the number of light-transmitting adhesive portions is multiple, and the multiple light-transmitting adhesive portions are spaced apart on the surface of the support film away from the display substrate.

[0014] The second aspect of this application also provides a display device, including the display panel of any of the first aspect embodiments described above.

[0015] In the display panel provided in the embodiments of this application, the display panel has a first display area and a second display area, and the light transmittance of the first display area is greater than that of the second display area, so that a photosensitive component can be integrated on the back of the first display area of ​​the display panel, realizing the under-screen integration of a photosensitive component such as a camera. At the same time, the first display area can display the image, increasing the display area of ​​the display panel and realizing the full-screen design of the display device.

[0016] According to the second aspect of this application, and according to the first aspect of this application.

[0017] According to any of the foregoing embodiments of the second aspect of this application, the photosensitive component includes at least one of a camera, a fingerprint recognition sensor, and an infrared sensor.

[0018] The display panel also includes a display substrate, a support film, and a light-transmitting adhesive portion. The display substrate is used to realize the display of the display panel, the support film is used to provide support for the display substrate, and the light-transmitting adhesive portion is disposed on the side of the support film opposite to the display substrate. The photosensitive component can be bonded to the support film through the light-transmitting adhesive portion. The refractive index of the light-transmitting adhesive portion is greater than 1 and less than the refractive index of the support film, that is, the refractive index of the light-transmitting adhesive portion is closer to that of the support film relative to air. The light-transmitting adhesive portion can improve the transmittance of the first display area, thereby improving the transmittance of the display panel and the sensitivity of the photosensitive component. In addition, by providing the light-transmitting adhesive portion, the relative positional stability of the photosensitive component and the support film can also be improved, thus improving the relative positional stability of the photosensitive component and the entire display panel. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0020] Figure 1 This is a top view schematic diagram of a display panel according to an embodiment of this application;

[0021] Figure 2 This illustration shows a partial cross-sectional view of a display panel provided in an embodiment of this application;

[0022] Figure 3 This diagram illustrates the usage state of a display panel according to an embodiment of this application.

[0023] Figure 4 A partial cross-sectional view of a display panel according to another embodiment of this application is shown;

[0024] Figure 5 A partial cross-sectional view of a display panel according to another embodiment of this application is shown;

[0025] Figure 6 This illustration shows a partial cross-sectional view of a display panel according to another embodiment of the present application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Display substrate;

[0028] 200. Supporting membrane;

[0029] 300. Translucent adhesive section; 310. First segment; 320. Second segment;

[0030] 400, Buffer layer; 410, Opening;

[0031] 500. Photosensitive module;

[0032] 600, cover plate;

[0033] AA1, First display area; AA2, Second display area. Detailed Implementation

[0034] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0035] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In electronic devices such as mobile phones and tablets, it is necessary to integrate light-sensing components such as front-facing cameras, infrared light sensors, fingerprint recognition modules, and proximity sensors on one side of the display panel. In some embodiments, a light-transmitting display area can be provided on the aforementioned electronic device, and the light-sensing components can be placed behind the light-transmitting display area, thereby achieving a full-screen display of the electronic device while ensuring that the light-sensing components function properly.

[0038] The display panel includes a display substrate, a support film, and a buffer layer. The buffer layer is typically made of materials such as foam. Because the buffer layer has extremely low light transmittance, holes are usually made in it to house the photosensitive component, with the photosensitive component and the support film spaced apart. This results in air gaps between the photosensitive component and the support film. Air has a refractive index of 1, while the support film typically has a refractive index greater than 1.6. The significant difference between the refractive indices of the support film and air leads to low light transmittance within the holes, affecting the sensing function of the photosensitive component.

[0039] This application is proposed to solve the aforementioned technical problems. To better understand this application, the following is combined with... Figures 1 to 6 The display panel and display device according to the embodiments of this application will be described in detail.

[0040] This invention provides a display panel, which may be an organic light-emitting diode (OLED) display panel.

[0041] Please see Figure 1 , Figure 1A top view schematic diagram of a display panel according to an embodiment of the present invention is shown.

[0042] like Figure 1 As shown, the display panel has a first display area AA1, a second display area AA2, and a non-display area NA surrounding the first display area AA1 and the second display area AA2. The light transmittance of the first display area AA1 is greater than that of the second display area AA2. Optionally, in other embodiments, the display panel is a full-screen display, and the display panel does not include the non-display area NA.

[0043] In this paper, the transmittance of the first display area AA1 is preferably greater than or equal to 15%. To ensure that the transmittance of the first display area AA1 is greater than 15%, or even greater than 40%, or even higher, the transmittance of each functional film layer of the display panel in this embodiment is greater than 80%, and at least some functional film layers have a transmittance greater than 90%.

[0044] In the display panel provided in the embodiments of this application, the display panel has a first display area and a second display area, and the light transmittance of the first display area is greater than that of the second display area, so that a photosensitive component can be integrated on the back of the first display area AA1, realizing the under-screen integration of a photosensitive component such as a camera. At the same time, the first display area AA1 can display images, increasing the display area of ​​the display panel and realizing the full-screen design of the display device.

[0045] Please see Figures 1 to 3 , Figure 2 This is a partial cross-sectional view of a display panel provided in an embodiment of this application. Figure 3 This is a usage state diagram of a display panel provided in an embodiment of this application.

[0046] like Figure 1 and Figure 2 As shown, the display panel provided in this embodiment includes a support film 200, a display substrate 100 disposed on the support film 200, and a light-transmitting adhesive portion 300. The support film 200 is disposed on the non-display side of the display substrate 100; the light-transmitting adhesive portion 300 is disposed on the side of the support film 200 away from the display substrate 100, the light-transmitting adhesive portion 300 is located in the first display area AA1, and the refractive index of the light-transmitting adhesive portion 300 is greater than 1 and less than the refractive index of the support film 200.

[0047] In the display panel provided in this embodiment, the display panel further includes a display substrate 100, a support film 200, and a light-transmitting adhesive portion 300. The display substrate 100 is used to realize the display of the display panel, the support film 200 is used to provide support to the display substrate 100, and the light-transmitting adhesive portion 300 is disposed on the side of the support film 200 away from the display substrate 100. The photosensitive component 500 can be bonded to the support film 200 through the light-transmitting adhesive portion 300. The refractive index of the light-transmitting adhesive portion 300 is greater than 1 and less than the refractive index of the support film 200, that is, the refractive index of the light-transmitting adhesive portion 300 is closer to that of the support film 200 relative to air. The light-transmitting adhesive portion 300 can improve the light transmittance of the first display area AA1 within the first display area AA1, thereby improving the light transmittance of the display panel and improving the sensitivity of the photosensitive component 500. Furthermore, by providing the light-transmitting adhesive portion 300, the relative positional stability of the photosensitive component 500 and the support film 200 can be improved, as well as the relative positional stability of the photosensitive component 500 and the entire display panel.

[0048] Furthermore, when the relative positions of the photosensitive element 500 and the support film 200 are more stable, the transmitted light is less likely to be refracted relative to the photosensitive element 500, which can improve the accuracy of the light information acquired by the photosensitive element 500 and improve the photosensitivity performance.

[0049] There are various ways to set up the display substrate 100. The display substrate 100 may include an array substrate and a light-emitting substrate.

[0050] The array substrate may include a pixel driving circuit. Optionally, the array substrate includes a first conductive layer, a second conductive layer, and a third conductive layer stacked together. An insulating material layer is disposed between adjacent conductive layers. Exemplarily, the pixel driving circuit disposed on the array substrate includes a transistor and a storage capacitor. The transistor includes a semiconductor, a gate, a source, and a drain. The storage capacitor includes a first electrode and a second electrode. As an example, the gate and the first electrode may be located on the first conductive layer, the second electrode may be located on the second conductive layer, and the source and drain may be located on the third conductive layer.

[0051] The light-emitting substrate may include a pixel definition layer and light-emitting units. The pixel definition layer includes an isolation portion and a pixel opening formed by the isolation portion. The light-emitting units are disposed within the pixel openings. Pixel electrodes are disposed between the light-emitting substrate and the array substrate. The pixel electrodes are electrically connected to a pixel driving circuit. Each pixel electrode is disposed corresponding to each pixel opening. A common electrode is also disposed on the side of the light-emitting substrate facing away from the array substrate. The common electrode cooperates with the pixel electrodes to drive the light-emitting units to emit light.

[0052] There are several ways to set the support film 200. Optionally, the material of the support film 200 may include polyimide or similar materials. Optionally, the light transmittance of the support film 200 may be greater than or equal to 50% to improve the light transmittance of the first display area AA1.

[0053] There are various ways to set the light-transmitting adhesive part 300. For example, the light-transmitting adhesive part 300 includes optical adhesive, which is used to bond the photosensitive component 500 and the support film 200.

[0054] Please refer to the following: Figure 1 and Figure 4 , Figure 4 This is a partial cross-sectional view of a display panel provided in another embodiment of this application.

[0055] In some alternative embodiments, such as Figure 1 and Figure 4 As shown, the display panel also includes a buffer layer 400 disposed on the side of the support film 200 away from the display substrate 100. The buffer layer 400 includes an opening 410 that is disposed through and located in the first display area AA1, and at least a partially light-transmitting adhesive portion 300 is located in the opening 410.

[0056] In these alternative embodiments, by providing a buffer layer 400 and disposing at least a portion of the light-transmitting adhesive portion 300 within the opening 410 on the buffer layer 400, the buffer layer 400 can provide a limit to the light-transmitting adhesive portion 300, preventing the light-transmitting adhesive portion 300 from moving on the surface of the support film 200, thus affecting the bonding effect between the photosensitive component 500 and the support film 200, and improving problems such as air bubbles between the photosensitive component 500 and the support film 200 caused by the movement of the light-transmitting adhesive portion 300, the light transmittance of the first display area AA1 is further improved.

[0057] There are various ways to set the buffer layer 400. For example, the buffer layer 400 may include flexible materials such as foam, which gives the buffer layer 400 good buffering performance and can provide good support and buffer protection to the support film 200 and the display substrate 100.

[0058] Please refer to the following: Figure 3 and Figure 5 , Figure 5 This is a partial cross-sectional view of a display panel provided in another embodiment of this application.

[0059] Optional, such as Figure 3 and Figure 5 As shown, the thickness of the light-transmitting adhesive portion 300 is less than the thickness of the buffer layer 400, so that the light-transmitting adhesive portion 300 is recessed into the opening 410, and at least part of the photosensitive component 500 extends into the opening 410 and is bonded to the light-transmitting adhesive portion 300, so that the buffer layer 400 can provide a certain degree of protection to the photosensitive component 500.

[0060] Please refer to the following: Figure 3 and Figure 6 , Figure 6This is a partial cross-sectional view of a display panel provided in another embodiment of this application.

[0061] In some other alternative embodiments, such as Figure 3 and Figure 6 As shown, the light-transmitting adhesive portion 300 includes a first segment 310 and a second segment 320 stacked along the thickness direction of the display panel. The first segment 310 is located inside the opening 410, and the second segment 320 overflows from the first segment 310 to the outside of the opening 410.

[0062] In these optional embodiments, a portion of the light-transmitting adhesive portion 300 (i.e., the first segment 310) is located inside the opening 410, and another portion (i.e., the second segment 320) extends out of the opening 410. That is, the thickness of the light-transmitting adhesive portion 300 is greater than the thickness of the buffer layer 400. The second segment 320 extending out of the opening 410 facilitates the bonding of the photosensitive component 500 to it, which facilitates the bonding operation of the photosensitive component 500, reduces the bonding bubbles formed between the light-transmitting adhesive portion 300 and the photosensitive component 500, better improves the light transmittance of the first display area AA1, and ensures the light-sensing performance of the photosensitive component 500.

[0063] Optionally, the radial dimension of the second segment 320 extending from the opening 410 may be the same as the size of the opening 410, or the radial dimension of the second segment 320 may be smaller than the size of the opening 410.

[0064] Optionally, the radial dimension of the second segment 320 is larger than the radial dimension of the opening 410, which can increase the contact area between the photosensitive component 500 and the light-transmitting adhesive portion 300, improve the stability of the relative position of the photosensitive component 500 and the light-transmitting adhesive portion 300, reduce the adhesive bubbles formed between the light-transmitting adhesive portion 300 and the photosensitive component 500, better improve the light transmittance of the first display area AA1, and ensure the light-sensing performance of the photosensitive component 500.

[0065] In some alternative embodiments, the difference between the refractive index of the support film 200 and the refractive index of the light-transmitting adhesive portion 300 is less than or equal to 0.4.

[0066] In these optional embodiments, when the refractive index of the support film 200 and the refractive index of the light-transmitting adhesive portion 300 meet the above conditions, the difference in refractive index between the light-transmitting adhesive portion 300 and the support film 200 is small, and light is unlikely to undergo total internal reflection at the contact interface between the light-transmitting adhesive portion 300 and the support film 200, thereby better improving the light transmittance of the first display area AA1.

[0067] In some optional embodiments, the difference between the refractive index of the support film 200 and the refractive index of the light-transmitting adhesive portion 300 is greater than or equal to 0.2.

[0068] In these optional embodiments, when the refractive index of the support film 200 and the refractive index of the light-transmitting adhesive portion 300 meet the above conditions, the refractive index of the light-transmitting adhesive portion 300 is less than the refractive index of the support film 200 and close to the refractive index of the support film 200, which can improve the transmittance of the first display area AA1 and improve the sensitivity of the photosensitive component 500.

[0069] Optionally, the refractive index of the support film 200 is 1.6 to 1.7, and the refractive index of the light-transmitting adhesive portion 300 is 1.3 to 1.4.

[0070] The inventors discovered that when the refractive index of the support film 200 and the refractive index of the light-transmitting adhesive portion 300 are both within the aforementioned range, on the one hand, the refractive index of the light-transmitting adhesive portion 300 and the refractive index of the support film 200 are made closer, which can better improve the light transmittance of the first display area AA1. On the other hand, the manufacturing process can ensure that both the support film 200 and the light-transmitting adhesive portion 300 have good light transmittance.

[0071] In this embodiment, the refractive index of the light-transmitting adhesive portion 300 is less than that of the support film 200, and the refractive index of the light-transmitting adhesive portion 300 is greater than that of air. The difference between the refractive index of the light-transmitting adhesive portion 300 and the refractive indices of the support film 200 and air is relatively close. Even if an adhesive bubble appears between the photosensitive component 500 and the support film 200, the light transmittance of the first display area AA1 can be improved, and the sensitivity of the photosensitive component 500 can be increased.

[0072] Optionally, the refractive index of the support film 200 is 1.64 to 1.66. That is, the refractive index of the support film 200 is around 1.65. When the refractive index of the support film 200 is within the above range, it can be prepared using a relatively mature process.

[0073] In some optional embodiments, the material of the light-transmitting adhesive portion 300 includes at least one of silicone resin adhesive, epoxy resin optical adhesive, acrylate photosensitive adhesive, cyanoacrylate adhesive, unsaturated polyester and styrene monomer adhesive, methanol adhesive, fir resin, and polyurethane optical adhesive.

[0074] In some optional embodiments, the light transmittance of the light-transmitting adhesive portion 300 is greater than or equal to 30%. For example, the light transmittance of the light-transmitting adhesive portion 300 is 30%, 40%, 50%, 60%, 70%, 80%, 90%, etc., to improve the light transmittance of the first display area AA1.

[0075] There are several ways to set the number of first display areas AA1. For example, there can be one first display area AA1, and a second display area AA2 can be set around at least part of the first display area AA1. The first display area AA1 is used to integrate photosensitive components 500 such as under-display cameras.

[0076] When there is only one first display area AA1, the number of light-transmitting adhesive portions 300 can be one or more. For example, there is only one light-transmitting adhesive portion 300, which is used to bond a single photosensitive component 500 within the first display area AA1. Alternatively, there are multiple light-transmitting adhesive portions 300, which are spaced apart within the first display area AA1. That is, multiple light-transmitting adhesive portions 300 are spaced apart on the surface of the support film away from the display substrate 100, and are used to bond multiple photosensitive components 500, with each light-transmitting adhesive portion 300 and each photosensitive component 500 corresponding to the other. Multiple light-transmitting adhesive portions 300 can bond multiple photosensitive components 500, and the light-transmitting adhesive portions 300 and the photosensitive components 500 are arranged in a one-to-one correspondence, which can avoid the problem of gaps between the support film 200 and the photosensitive component 500 when multiple spaced light-transmitting adhesive portions 300 are bonded to the same photosensitive component 500.

[0077] In some alternative embodiments, there are multiple first display areas AA1, which are spaced apart, and second display areas AA2 surround at least a portion of each first display area AA1. The multiple first display areas AA1 are used to correspond to multiple photosensitive components 500.

[0078] When there are multiple first display areas AA1, the number of light-transmitting adhesive portions 300 can be one or more. For example, there may be one light-transmitting adhesive portion 300, located in one of the first display areas AA1 and used to bond one of the photosensitive components 500. Alternatively, there may be multiple light-transmitting adhesive portions 300, which are spaced apart on the surface of the support film away from the display substrate 100. Each first display area AA1 has at least one light-transmitting adhesive portion 300, and each light-transmitting adhesive portion 300 is used to bond each photosensitive component 500.

[0079] For example, the display panel may also include an encapsulation layer for encapsulating the light-emitting substrate and a polarizer and cover plate 600 located above the encapsulation layer. Alternatively, the cover plate 600 may be directly disposed above the encapsulation layer without the need for a polarizer, or at least the cover plate 600 may be directly disposed above the encapsulation layer of the first display area AA1 without the need for a polarizer, thus avoiding the polarizer affecting the amount of light collected by the photosensitive element disposed below the corresponding first display area AA1. Of course, a polarizer may also be disposed above the encapsulation layer of the first display area AA1.

[0080] The second aspect of this application also provides a display device, including the display panel of any of the first aspect embodiments described above. Since the display device provided in the second aspect of this application includes the display panel of any of the first aspect embodiments described above, it has the beneficial effects of the display panel of any of the first aspect embodiments described above, which will not be elaborated further here.

[0081] The display devices in this application include, but are not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0082] In some alternative embodiments, the display device further includes a photosensitive component 500, which is interconnected with the support film 200 via the light-transmitting adhesive portion 300.

[0083] In these optional embodiments, when the photosensitive component 500 is interconnected with the support film 200 via the light-transmitting adhesive portion 300, the photosensitive component 500 obtains light through the support film 200 and the light-transmitting adhesive portion 300. Since the refractive index of the light-transmitting adhesive portion 300 is between the refractive index of air and the refractive index of the support film 200, the light-transmitting adhesive portion 300 can effectively improve the light transmittance of the first display area AA1, thereby improving the light-sensing performance of the photosensitive component 500.

[0084] Optionally, the photosensitive component 500 includes at least one of a camera, a fingerprint sensor, and an infrared sensor.

[0085] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that, The display panel has 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 includes: Display substrate; A support film is disposed on the non-display side of the display substrate; A light-transmitting adhesive portion is disposed on the side of the support film opposite to the display substrate. The light-transmitting adhesive portion is located in the first display area, and the refractive index of the light-transmitting adhesive portion is greater than 1 and less than the refractive index of the support film. A buffer layer is disposed on the side of the support film opposite to the display substrate. The buffer layer includes an opening that extends through the first display area, and a portion of the light-transmitting adhesive portion is located within the opening. The light-transmitting adhesive portion includes a first segment and a second segment stacked along the thickness direction of the display panel. The first segment is located inside the opening, and the second segment overflows from the first segment to the outside of the opening. The radial dimension of the second segment is greater than the radial dimension of the opening.

2. The display panel according to claim 1, characterized in that, The difference between the refractive index of the support film and the refractive index of the light-transmitting adhesive portion is less than or equal to 0.

4.

3. The display panel according to claim 1, characterized in that, The refractive index of the support film is 1.6 to 1.7, and the refractive index of the light-transmitting adhesive portion is 1.3 to 1.

4.

4. The display panel according to claim 1, characterized in that, The material of the light-transmitting adhesive part includes at least one of the following: silicone resin adhesive, epoxy resin optical adhesive, acrylate photosensitive adhesive, cyanoacrylate adhesive, unsaturated polyester and styrene monomer adhesive, methanol adhesive, fir resin, and polyurethane optical adhesive.

5. The display panel according to claim 1, characterized in that, The light transmittance of the light-transmitting adhesive portion is greater than or equal to 30%.

6. The display panel according to claim 1, characterized in that, The number of light-transmitting adhesive portions is multiple, and the multiple light-transmitting adhesive portions are spaced apart on the surface of the support film opposite to the display substrate.

7. A display device, characterized in that, Includes the display panel as described in any one of claims 1-6.

8. The display device according to claim 7, characterized in that, It also includes a photosensitive component, which is connected to the support film through the light-transmitting adhesive portion.

9. The display device according to claim 8, characterized in that, The photosensitive component includes at least one of a camera, a fingerprint sensor, and an infrared sensor.

Images